/* ═══════════════════════════════════════════════════════════════
   TextHumanize Demo — Modern Dark Theme
   ═══════════════════════════════════════════════════════════════ */

/* ── CSS Reset & Variables ─────────────────────────────────── */
:root {
    --bg: #060612;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --primary: #7c3aed;
    --primary-light: #a78bfa;
    --secondary: #2dd4bf;
    --accent: #ec4899;
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.15);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --nav-height: 72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--secondary); }

::selection { background: rgba(124, 58, 237, 0.3); }

/* Custom scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ── Container ─────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Background Orbs ───────────────────────────────────────── */
.bg-orbs {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 0; overflow: hidden;
}
.orb {
    position: absolute; border-radius: 50%; filter: blur(80px);
    animation: orbFloat 20s ease-in-out infinite;
}
.orb-1 {
    width: 600px; height: 600px; top: -10%; left: -5%;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15), transparent 70%);
    animation-delay: 0s;
}
.orb-2 {
    width: 500px; height: 500px; top: 40%; right: -10%;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.1), transparent 70%);
    animation-delay: -7s;
}
.orb-3 {
    width: 400px; height: 400px; bottom: -5%; left: 30%;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.1), transparent 70%);
    animation-delay: -14s;
}
@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(40px, 30px) scale(1.02); }
}

/* ── Navigation ────────────────────────────────────────────── */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: var(--nav-height);
    background: rgba(6, 6, 18, 0.8);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
}
.nav.scrolled { background: rgba(6, 6, 18, 0.95); }
.nav-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between;
    height: 100%;
}
.nav-logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.25rem; font-weight: 700; color: var(--text);
}
.logo-icon { font-size: 1.5rem; }
.logo-text {
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
    color: var(--text-secondary); padding: 8px 16px; border-radius: var(--radius-sm);
    font-size: 0.9rem; font-weight: 500; transition: all var(--transition);
    display: flex; align-items: center; gap: 6px; border: none; background: none;
    cursor: pointer;
}
.nav-link:hover { color: var(--text); background: var(--bg-card); }

/* Nav dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
    position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
    background: rgba(15, 15, 30, 0.95); backdrop-filter: blur(20px);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 8px; min-width: 200px; opacity: 0; visibility: hidden;
    transition: all 0.2s; transform: translateX(-50%) translateY(8px);
    display: grid; grid-template-columns: 1fr 1fr; gap: 2px;
    box-shadow: var(--shadow);
}
.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.dropdown-item {
    display: flex; align-items: center; gap: 8px; padding: 8px 12px;
    color: var(--text-secondary); border-radius: 6px; font-size: 0.85rem;
    transition: all var(--transition);
}
.dropdown-item:hover { background: var(--bg-card-hover); color: var(--text); }

/* Nav actions */
.nav-actions { display: flex; align-items: center; gap: 12px; }

/* Language selector */
.lang-selector { position: relative; }
.lang-btn {
    display: flex; align-items: center; gap: 6px; padding: 6px 12px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text); font-size: 0.85rem;
    cursor: pointer; transition: all var(--transition);
}
.lang-btn:hover { border-color: var(--border-hover); }
.lang-dropdown {
    position: absolute; top: 100%; right: 0; margin-top: 4px;
    background: rgba(15, 15, 30, 0.95); backdrop-filter: blur(20px);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 4px; min-width: 160px; opacity: 0; visibility: hidden;
    transition: all 0.2s; transform: translateY(8px);
    box-shadow: var(--shadow);
}
.lang-selector.open .lang-dropdown {
    opacity: 1; visibility: visible; transform: translateY(0);
}
.lang-option {
    display: flex; align-items: center; gap: 8px; padding: 8px 12px;
    background: none; border: none; color: var(--text-secondary); width: 100%;
    border-radius: 6px; font-size: 0.85rem; cursor: pointer;
    transition: all var(--transition); text-align: left;
}
.lang-option:hover { background: var(--bg-card-hover); color: var(--text); }

/* Mobile nav toggle */
.nav-toggle {
    display: none; flex-direction: column; gap: 5px; padding: 8px;
    background: none; border: none; cursor: pointer;
}
.nav-toggle span {
    display: block; width: 22px; height: 2px; background: var(--text);
    transition: all var(--transition); border-radius: 1px;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 24px; border: none; border-radius: var(--radius-sm);
    font-family: var(--font); font-size: 0.95rem; font-weight: 600;
    cursor: pointer; transition: all var(--transition);
    text-decoration: none; white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), #6d28d9);
    color: white; box-shadow: 0 2px 12px rgba(124, 58, 237, 0.3);
}
.btn-primary:hover {
    transform: translateY(-1px); box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
    color: white;
}
.btn-outline {
    background: transparent; color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-outline:hover {
    border-color: var(--primary); color: var(--text);
    background: rgba(124, 58, 237, 0.05);
}
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-glow { animation: glowPulse 2s ease-in-out infinite; }
@keyframes glowPulse {
    0%, 100% { box-shadow: 0 2px 12px rgba(124, 58, 237, 0.3); }
    50% { box-shadow: 0 4px 30px rgba(124, 58, 237, 0.5); }
}
.btn-icon {
    display: flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; border: none; border-radius: var(--radius-sm);
    background: var(--bg-card); color: var(--text-secondary); cursor: pointer;
    transition: all var(--transition);
}
.btn-icon:hover { background: var(--bg-card-hover); color: var(--text); }
.btn-link {
    background: none; border: none; color: var(--text-muted);
    font-size: 0.85rem; cursor: pointer; padding: 8px 0;
    transition: color var(--transition);
}
.btn-link:hover { color: var(--primary-light); }
.btn.loading { opacity: 0.7; pointer-events: none; }
.select-sm {
    padding: 6px 12px; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    color: var(--text); font-size: 0.85rem; font-family: var(--font);
}

/* ── Main ──────────────────────────────────────────────────── */
.main {
    position: relative; z-index: 1;
    padding-top: var(--nav-height);
    min-height: calc(100vh - var(--nav-height));
}

/* ── Gradient Text ─────────────────────────────────────────── */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-light), var(--secondary), var(--accent));
    background-size: 200% 200%;
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
}
@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ── Glass Card ────────────────────────────────────────────── */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

/* ── Hero Section ──────────────────────────────────────────── */
.hero {
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
    align-items: center; max-width: 1200px; margin: 0 auto;
    padding: 80px 24px 60px;
    min-height: calc(100vh - var(--nav-height));
}
.hero-badge {
    display: inline-block; padding: 6px 16px; border-radius: 20px;
    background: rgba(124, 58, 237, 0.1); border: 1px solid rgba(124, 58, 237, 0.2);
    color: var(--primary-light); font-size: 0.8rem; font-weight: 500;
    margin-bottom: 24px; letter-spacing: 0.5px;
}
.hero-title {
    font-size: 3.5rem; font-weight: 800; line-height: 1.1;
    margin-bottom: 24px; letter-spacing: -0.02em;
}
.hero-subtitle {
    font-size: 1.15rem; color: var(--text-secondary); line-height: 1.7;
    margin-bottom: 40px; max-width: 540px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero Terminal */
.hero-terminal {
    background: rgba(10, 10, 25, 0.9); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow), var(--shadow-glow);
}
.terminal-header {
    display: flex; align-items: center; gap: 12px; padding: 12px 16px;
    border-bottom: 1px solid var(--border); background: rgba(255,255,255,0.02);
}
.terminal-dots { display: flex; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #22c55e; }
.terminal-title { color: var(--text-muted); font-size: 0.75rem; margin-left: auto; }
.terminal-body { padding: 16px; font-family: var(--font-mono); font-size: 0.85rem; }
.terminal-line { padding: 3px 0; display: flex; gap: 8px; flex-wrap: wrap; }
.t-prompt { color: var(--secondary); user-select: none; }
.t-cmd { color: var(--text); }
.t-keyword { color: #c084fc; }
.t-module { color: var(--secondary); }
.t-string { color: #fbbf24; }
.t-builtin { color: #60a5fa; }
.t-success { color: var(--success); }
.t-output { color: var(--text-secondary); }

/* Typing animation */
.typing {
    overflow: hidden; white-space: nowrap;
    border-right: 2px solid var(--primary-light);
    animation: typing 1.5s steps(28) 0.3s 1 normal both, blink 0.7s step-end infinite;
    width: 0;
}
@keyframes typing { from { width: 0 } to { width: 24ch } }
@keyframes blink { 50% { border-color: transparent } }
.fade-in { animation: fadeIn 0.5s ease forwards; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px) } to { opacity: 1; transform: translateY(0) } }

/* ── Stats Section ─────────────────────────────────────────── */
.stats-section { padding: 32px 0; }
.stats-section .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    max-width: 760px;
    margin: 0 auto;
}
.stat-card {
    text-align: center; padding: 20px 10px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); transition: all var(--transition);
    overflow: hidden; min-width: 0;
}
.stat-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.stat-value {
    font-size: clamp(1.3rem, 2.5vw, 2rem); font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; margin-bottom: 4px;
    overflow: hidden; text-overflow: ellipsis;
}
.stat-label { color: var(--text-secondary); font-size: 0.78rem; }

/* ── Section Header ────────────────────────────────────────── */
.section-header { text-align: center; margin-bottom: 60px; }
.section-title { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; }
.section-subtitle { color: var(--text-secondary); font-size: 1.1rem; max-width: 640px; margin: 0 auto; }

/* ── Tools Grid ────────────────────────────────────────────── */
.tools-section { padding: 100px 0; }
.tools-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.tool-card {
    display: flex; flex-direction: column; padding: 28px 24px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); transition: all var(--transition);
    text-decoration: none; color: var(--text);
    position: relative; overflow: hidden;
}
.tool-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--tool-gradient); opacity: 0; transition: opacity var(--transition);
}
.tool-card:hover {
    border-color: var(--tool-color); transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    color: var(--text);
}
.tool-card:hover::before { opacity: 1; }
.tool-card-icon {
    width: 48px; height: 48px; border-radius: var(--radius-sm);
    background: var(--tool-gradient); display: flex; align-items: center;
    justify-content: center; font-size: 1.2rem; color: white;
    margin-bottom: 16px; opacity: 0.9;
}
.tool-card-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
.tool-card-desc { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.5; flex: 1; }
.tool-card-link {
    color: var(--tool-color); font-size: 0.85rem; font-weight: 500;
    margin-top: 16px; opacity: 0; transition: all var(--transition);
    transform: translateX(-8px);
}
.tool-card:hover .tool-card-link { opacity: 1; transform: translateX(0); }

/* ── Demo Section ──────────────────────────────────────────── */
.demo-section { padding: 100px 0; }
.demo-panel {
    display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px;
    align-items: start;
}
.demo-label {
    display: flex; align-items: center; gap: 8px; padding: 12px 0;
    color: var(--text-secondary); font-size: 0.9rem; font-weight: 500;
}
.demo-textarea {
    width: 100%; min-height: 200px; padding: 16px; resize: vertical;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); color: var(--text); font-family: var(--font);
    font-size: 0.95rem; line-height: 1.6; transition: border-color var(--transition);
}
.demo-textarea:focus { outline: none; border-color: var(--primary); }
.demo-textarea::placeholder { color: var(--text-muted); }
.demo-controls {
    display: flex; flex-direction: column; align-items: center;
    gap: 20px; padding-top: 60px;
}
.demo-settings {
    display: flex; flex-direction: column; gap: 12px;
}
.intensity-control { display: flex; flex-direction: column; gap: 4px; align-items: center; }
.intensity-control label { font-size: 0.8rem; color: var(--text-muted); }
.intensity-control input[type="range"] { width: 100px; }
.demo-output {
    min-height: 200px; padding: 16px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius);
}
.demo-placeholder, .demo-error, .demo-result {
    font-size: 0.95rem; line-height: 1.6;
}
.demo-placeholder { color: var(--text-muted); }
.demo-error { color: var(--error); }
.demo-result { color: var(--text); }
.demo-loading { display: flex; justify-content: center; padding: 60px 0; }
.pulse-dots { display: flex; gap: 6px; }
.pulse-dots span {
    width: 8px; height: 8px; border-radius: 50%; background: var(--primary);
    animation: pulse 1.4s ease-in-out infinite;
}
.pulse-dots span:nth-child(2) { animation-delay: 0.2s; }
.pulse-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes pulse { 0%, 80%, 100% { transform: scale(0.6); opacity: 0.4 } 40% { transform: scale(1); opacity: 1 } }

/* Demo Metrics */
.demo-metrics {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    margin-top: 32px;
}
.metric-card {
    display: flex; align-items: center; gap: 14px; padding: 16px 20px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); transition: all var(--transition);
}
.metric-card:hover { border-color: var(--border-hover); }
.metric-icon {
    width: 40px; height: 40px; border-radius: 10px;
    background: rgba(124, 58, 237, 0.1); display: flex;
    align-items: center; justify-content: center;
    color: var(--primary-light); font-size: 1rem;
}
.metric-value { font-size: 1.2rem; font-weight: 700; }
.metric-label { font-size: 0.78rem; color: var(--text-muted); }

/* ── Technology Section ────────────────────────────────────── */
.tech-section { padding: 100px 0; }
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tech-card {
    padding: 32px 28px; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: var(--radius);
    transition: all var(--transition);
}
.tech-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.tech-badge {
    display: inline-block; padding: 4px 12px; border-radius: 20px;
    background: linear-gradient(135deg, var(--primary), #6d28d9);
    color: white; font-size: 0.75rem; font-weight: 700;
    letter-spacing: 0.5px; margin-bottom: 16px;
}
.tech-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 12px; }
.tech-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; margin-bottom: 20px; }
.tech-features { display: flex; flex-wrap: wrap; gap: 8px; }
.tech-features span {
    padding: 4px 10px; border-radius: 6px;
    background: rgba(124, 58, 237, 0.08); color: var(--primary-light);
    font-size: 0.75rem; font-weight: 500;
}

/* ── How It Works ──────────────────────────────────────────── */
.how-section { padding: 100px 0; }
.how-steps { display: flex; align-items: flex-start; gap: 20px; justify-content: center; }
.how-step {
    text-align: center; padding: 32px 24px; flex: 1; max-width: 300px;
}
.step-number {
    font-size: 3rem; font-weight: 900; line-height: 1;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; margin-bottom: 16px;
}
.how-step h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; }
.how-step p { color: var(--text-secondary); font-size: 0.9rem; }
.how-connector {
    color: var(--text-muted); padding-top: 48px;
    font-size: 1.2rem; flex-shrink: 0;
}

/* ── Languages Section ─────────────────────────────────────── */
.lang-section { padding: 80px 0; }
.lang-flags {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 12px;
    max-width: 800px; margin: 0 auto;
}
.lang-flag {
    padding: 8px 16px; border-radius: 8px;
    background: var(--bg-card); border: 1px solid var(--border);
    font-size: 0.9rem; transition: all var(--transition);
    cursor: default;
}
.lang-flag:hover { border-color: var(--primary); transform: translateY(-2px); }
.lang-flag-universal {
    background: rgba(124, 58, 237, 0.1);
    border-color: var(--primary);
}

/* ── CTA Section ───────────────────────────────────────────── */
.cta-section { padding: 80px 0 100px; }
.cta-card {
    text-align: center; padding: 60px 40px;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(45, 212, 191, 0.05));
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: var(--radius-lg);
}
.cta-card h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.cta-card p { color: var(--text-secondary); font-size: 1.1rem; margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; }

/* ── Tool Page ─────────────────────────────────────────────── */
.tool-page { padding-bottom: 80px; }
.breadcrumb {
    display: flex; align-items: center; gap: 8px;
    padding: 24px 0; font-size: 0.85rem; color: var(--text-muted);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb i { font-size: 0.6rem; }

.tool-header {
    display: flex; align-items: center; gap: 20px;
    padding: 32px 0 40px;
}
.tool-header-icon {
    width: 64px; height: 64px; border-radius: 16px;
    background: var(--tool-gradient); display: flex; align-items: center;
    justify-content: center; font-size: 1.5rem; color: white;
}
.tool-header-text h1 { font-size: 2rem; font-weight: 800; }
.tool-header-text p { color: var(--text-secondary); font-size: 1rem; margin-top: 4px; }

/* Tool workspace */
.tool-workspace {
    display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
    margin-bottom: 32px;
}
.tool-panel {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
}
.panel-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 20px; border-bottom: 1px solid var(--border);
}
.panel-header h3 {
    font-size: 0.9rem; font-weight: 600;
    display: flex; align-items: center; gap: 8px;
}
.panel-actions { display: flex; gap: 8px; }
.tool-textarea {
    width: 100%; min-height: 240px; padding: 16px 20px; resize: vertical;
    background: transparent; border: none; color: var(--text);
    font-family: var(--font); font-size: 0.95rem; line-height: 1.6;
}
.tool-textarea:focus { outline: none; }
.tool-textarea::placeholder { color: var(--text-muted); }

/* Tool settings */
.tool-settings { padding: 16px 20px; border-top: 1px solid var(--border); }
.setting-group { margin-bottom: 12px; }
.setting-group:last-child { margin-bottom: 0; }
.setting-group label {
    display: block; font-size: 0.8rem; color: var(--text-muted);
    margin-bottom: 6px; font-weight: 500;
}
.setting-select {
    width: 100%; padding: 8px 12px; background: rgba(255,255,255,0.04);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    color: var(--text); font-family: var(--font); font-size: 0.85rem;
}
.setting-select:focus { outline: none; border-color: var(--primary); }
.range-group { display: flex; align-items: center; gap: 12px; }
.range-group input[type="range"] { flex: 1; }
.range-value { font-size: 0.85rem; font-weight: 600; color: var(--primary-light); min-width: 36px; }

/* Process button */
.btn-process {
    width: 100%; margin: 0; padding: 14px 24px;
    border-radius: 0 0 var(--radius) var(--radius);
    font-size: 1rem;
}

/* Tool output */
.tool-output { padding: 20px; min-height: 240px; }
.output-placeholder {
    display: flex; flex-direction: column; align-items: center;
    justify-content: center; text-align: center; padding: 60px 20px;
    color: var(--text-muted);
}
.output-placeholder i { font-size: 2.5rem; margin-bottom: 16px; opacity: 0.4; }
.output-placeholder p { font-size: 0.9rem; }
.output-error {
    display: flex; flex-direction: column; align-items: center;
    text-align: center; padding: 40px 20px; color: var(--error);
}
.output-error i { font-size: 2rem; margin-bottom: 12px; }
.result-text { line-height: 1.8; font-size: 0.95rem; white-space: pre-wrap; }

/* Skeleton loading */
.skeleton-lines { width: 100%; padding: 20px; }
.skeleton-line {
    height: 14px; background: linear-gradient(90deg, var(--bg-card) 25%, rgba(255,255,255,0.06) 50%, var(--bg-card) 75%);
    background-size: 200% 100%; animation: skeleton 1.5s ease-in-out infinite;
    border-radius: 4px; margin-bottom: 12px;
}
.skeleton-line.short { width: 60%; }
@keyframes skeleton { 0% { background-position: 200% 0 } 100% { background-position: -200% 0 } }

/* Tool metrics */
.tool-metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }

/* Tool visualization */
.tool-visualization, .perplexity-heatmap {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); margin-bottom: 32px; overflow: hidden;
}
.viz-header {
    padding: 14px 20px; border-bottom: 1px solid var(--border);
}
.viz-header h3 {
    font-size: 0.9rem; font-weight: 600;
    display: flex; align-items: center; gap: 8px;
}
.viz-grid { padding: 24px; }
.viz-grid canvas { max-width: 100%; height: auto; }

/* Heatmap */
.heatmap-content {
    padding: 20px; line-height: 2; font-size: 0.95rem;
}
.heatmap-sentence {
    display: inline; padding: 2px 4px; border-radius: 3px;
    transition: all var(--transition); cursor: help;
}
.heatmap-sentence:hover { opacity: 0.8; }
.heatmap-legend {
    display: flex; gap: 20px; padding: 12px 20px;
    border-top: 1px solid var(--border); font-size: 0.8rem;
    color: var(--text-secondary);
}
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-color { width: 12px; height: 12px; border-radius: 3px; }

/* Specific result styles */
.detection-result { display: flex; gap: 32px; align-items: flex-start; }
.detection-gauge { position: relative; text-align: center; }
.gauge-center {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    text-align: center;
}
.gauge-value { font-size: 2rem; font-weight: 800; }
.gauge-label { font-size: 0.8rem; color: var(--text-secondary); }
.detection-details { flex: 1; }
.det-metric { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.det-metric-name { width: 120px; font-size: 0.8rem; color: var(--text-secondary); text-transform: capitalize; }
.det-metric-bar {
    flex: 1; height: 6px; background: rgba(255,255,255,0.06);
    border-radius: 3px; overflow: hidden;
}
.det-metric-fill { height: 100%; border-radius: 3px; background: var(--primary); transition: width 0.5s; }
.det-metric-val { width: 40px; font-size: 0.8rem; text-align: right; font-weight: 600; }

/* Tone result */
.tone-result { }
.tone-dominant {
    text-align: center; padding: 24px; margin-bottom: 20px;
    background: rgba(124, 58, 237, 0.05); border-radius: var(--radius-sm);
}
.tone-label { display: block; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 4px; }
.tone-value { font-size: 1.5rem; font-weight: 700; text-transform: capitalize; }
.tone-bar-group { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.tone-name { width: 100px; font-size: 0.85rem; text-transform: capitalize; }
.tone-bar-track {
    flex: 1; height: 6px; background: rgba(255,255,255,0.06);
    border-radius: 3px; overflow: hidden;
}
.tone-bar-fill { height: 100%; border-radius: 3px; transition: width 0.5s; }
.tone-pct { width: 40px; font-size: 0.8rem; text-align: right; font-weight: 600; }

/* Watermark result */
.watermark-result { text-align: center; padding: 20px; }
.wm-status {
    display: flex; align-items: center; justify-content: center;
    gap: 10px; font-size: 1.2rem; font-weight: 600;
    padding: 20px; border-radius: var(--radius-sm);
}
.wm-detected { background: rgba(239, 68, 68, 0.1); color: var(--error); }
.wm-clean { background: rgba(34, 197, 94, 0.1); color: var(--success); }
.wm-confidence { margin-top: 12px; color: var(--text-secondary); }
.wm-details { margin-top: 16px; text-align: left; }
.wm-details pre {
    padding: 12px; background: rgba(0,0,0,0.2);
    border-radius: var(--radius-sm); font-size: 0.8rem; overflow-x: auto;
}

/* Spin result */
.spin-result {}
.spin-primary {
    padding: 16px; background: rgba(124, 58, 237, 0.05);
    border-radius: var(--radius-sm); margin-bottom: 16px;
}
.spin-primary h4, .spin-variants h4 { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; }
.spin-variant {
    display: flex; gap: 12px; padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.spin-variant:last-child { border-bottom: none; }
.variant-num {
    font-weight: 700; color: var(--primary-light); font-size: 0.85rem;
    min-width: 30px;
}

/* Score circle */
.score-circle {
    position: relative; width: 120px; height: 120px; margin: 0 auto;
}
.score-circle svg { transform: rotate(-90deg); }
.score-bg { fill: none; stroke: rgba(255,255,255,0.06); stroke-width: 8; }
.score-fill { fill: none; stroke: var(--score-color); stroke-width: 8; stroke-linecap: round; transition: stroke-dasharray 1s; }
.score-text {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    font-size: 1.5rem; font-weight: 800; color: var(--score-color);
}

/* Coherence result */
.coherence-result { display: flex; gap: 32px; align-items: flex-start; }
.coherence-details { flex: 1; }

/* Readability result */
.readability-result { display: flex; gap: 32px; align-items: flex-start; flex-wrap: wrap; }
.readability-gauge { text-align: center; min-width: 250px; }
.read-value { font-size: 2rem; font-weight: 800; margin-top: 8px; }
.read-label { color: var(--text-muted); font-size: 0.85rem; }
.readability-details { flex: 1; min-width: 200px; }
.read-item {
    display: flex; justify-content: space-between; padding: 8px 0;
    border-bottom: 1px solid var(--border); font-size: 0.85rem;
}
.read-item span { color: var(--text-secondary); text-transform: capitalize; }
.read-item strong { color: var(--text); }

/* Grammar result */
.grammar-result {}
.grammar-clean {
    text-align: center; padding: 32px; color: var(--success);
    font-size: 1.2rem; font-weight: 600;
}
.grammar-clean i { font-size: 2rem; margin-right: 8px; }
.grammar-count { font-size: 0.9rem; margin-bottom: 16px; }
.grammar-issues { display: flex; flex-direction: column; gap: 8px; }
.grammar-issue {
    display: flex; gap: 12px; padding: 12px 16px;
    border-radius: var(--radius-sm);
}
.issue-error { background: rgba(239, 68, 68, 0.08); }
.issue-warning { background: rgba(245, 158, 11, 0.08); }
.issue-text { flex: 1; }
.issue-text strong { display: block; font-size: 0.9rem; margin-bottom: 4px; }
.issue-context { display: block; color: var(--text-muted); font-size: 0.8rem; }
.issue-fix { display: block; color: var(--success); font-size: 0.85rem; font-weight: 500; }
.grammar-fixed {
    margin-top: 16px; padding: 16px;
    background: rgba(34, 197, 94, 0.05); border-radius: var(--radius-sm);
}
.grammar-fixed h4 { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; }

/* Perplexity result */
.perplexity-result {}
.ppl-main { text-align: center; margin-bottom: 24px; }
.ppl-value {
    font-size: 3rem; font-weight: 900;
    background: linear-gradient(135deg, var(--error), var(--warning));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.ppl-label { color: var(--text-muted); font-size: 0.9rem; }
.ppl-chart-wrap { max-width: 500px; margin: 0 auto; }
.ppl-details { margin-top: 20px; }

/* Health result */
.health-result { display: flex; gap: 32px; align-items: flex-start; }
.health-score { position: relative; text-align: center; min-width: 180px; }
.health-center {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.health-value { font-size: 2rem; font-weight: 800; }
.health-label { color: var(--text-muted); font-size: 0.8rem; }
.health-components { flex: 1; }
.health-comp { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.comp-name { width: 120px; font-size: 0.85rem; text-transform: capitalize; }
.comp-bar-track {
    flex: 1; height: 8px; background: rgba(255,255,255,0.06);
    border-radius: 4px; overflow: hidden;
}
.comp-bar-fill {
    height: 100%; border-radius: 4px; transition: width 0.8s;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}
.comp-val { width: 40px; font-size: 0.85rem; text-align: right; font-weight: 600; }

/* Plagiarism result */
.plagiarism-result { text-align: center; padding: 20px; }
.plag-score { margin-bottom: 20px; }
.plag-value { font-size: 3rem; font-weight: 900; color: var(--score-color); }
.plag-label { font-size: 1rem; color: var(--text-secondary); }
.plag-details { text-align: left; }

/* API example */
.api-example { margin-bottom: 32px; }
.code-block {
    background: rgba(10, 10, 25, 0.8); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden; margin-bottom: 16px;
}
.code-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 16px; border-bottom: 1px solid var(--border);
    font-size: 0.8rem; color: var(--text-muted); font-weight: 500;
}
.code-block pre {
    padding: 16px; overflow-x: auto; font-family: var(--font-mono);
    font-size: 0.8rem; line-height: 1.5; color: var(--text-secondary);
}

/* Related tools */
.related-tools { padding: 40px 0; }
.related-tools h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 16px; }
.related-grid {
    display: flex; flex-wrap: wrap; gap: 8px;
}
.related-card {
    display: flex; align-items: center; gap: 8px; padding: 8px 16px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text-secondary);
    font-size: 0.85rem; transition: all var(--transition);
}
.related-card:hover {
    border-color: var(--tool-color); color: var(--text);
    transform: translateY(-1px);
}

/* ── API Docs Page ─────────────────────────────────────────── */
.page-section { padding: 40px 0 80px; }
.page-header { text-align: center; margin-bottom: 60px; }
.page-header h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; }
.page-subtitle { color: var(--text-secondary); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

.api-section { margin-bottom: 48px; }
.api-section h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 20px; }
.api-url-box {
    display: inline-block; padding: 12px 24px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); font-family: var(--font-mono);
    font-size: 0.95rem; margin-bottom: 12px;
}
.api-endpoints { display: flex; flex-direction: column; gap: 12px; }
.api-endpoint {
    padding: 16px 20px; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.api-endpoint:hover { border-color: var(--border-hover); }
.ep-header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.ep-method {
    padding: 2px 8px; border-radius: 4px; font-size: 0.7rem;
    font-weight: 700; letter-spacing: 0.5px;
}
.method-post { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.method-get { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.ep-path { font-family: var(--font-mono); font-size: 0.9rem; }
.ep-desc { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 4px; }
.ep-params { font-size: 0.8rem; color: var(--text-muted); }
.ep-params-label { font-weight: 500; }
.ep-params code { color: var(--text-secondary); }

.api-coming-soon {
    position: relative; padding: 32px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
}
.coming-soon-badge {
    display: inline-block; padding: 4px 12px; border-radius: 20px;
    background: linear-gradient(135deg, var(--accent), var(--warning));
    color: white; font-size: 0.75rem; font-weight: 700;
    margin-bottom: 16px;
}
.api-features-preview {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
    margin-top: 20px;
}
.api-feature {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px; background: rgba(255,255,255,0.02);
    border-radius: var(--radius-sm); font-size: 0.9rem;
}
.api-feature i { color: var(--primary-light); }

/* ── Pricing Page ──────────────────────────────────────────── */
.pricing-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
    margin-bottom: 60px;
}
.pricing-card {
    padding: 32px 28px; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: var(--radius);
    transition: all var(--transition); position: relative;
}
.pricing-card:hover { transform: translateY(-4px); border-color: var(--border-hover); }
.pricing-featured {
    border-color: var(--primary);
    box-shadow: 0 0 40px rgba(124, 58, 237, 0.15);
}
.pricing-badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    padding: 4px 16px; border-radius: 20px;
    background: linear-gradient(135deg, var(--primary), #6d28d9);
    color: white; font-size: 0.75rem; font-weight: 700;
}
.pricing-header { margin-bottom: 24px; }
.pricing-header h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }
.price-amount { font-size: 2.5rem; font-weight: 900; }
.price-period { color: var(--text-muted); font-size: 0.9rem; }
.pricing-features {
    list-style: none; margin-bottom: 24px;
}
.pricing-features li {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 0; font-size: 0.9rem;
}
.pricing-features li i { font-size: 0.8rem; }
.pricing-features li .fa-check { color: var(--success); }
.pricing-features li .fa-xmark { color: var(--text-muted); }
.pricing-features li.disabled { color: var(--text-muted); }

.payg-section { max-width: 700px; margin: 0 auto; }
.payg-card { padding: 32px; }
.payg-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 12px; }
.payg-card > p { color: var(--text-secondary); margin-bottom: 24px; }
.payg-features { display: flex; flex-direction: column; gap: 16px; }
.payg-feature {
    display: flex; align-items: flex-start; gap: 14px;
}
.payg-feature i { color: var(--primary-light); font-size: 1.2rem; margin-top: 2px; }
.payg-feature strong { display: block; margin-bottom: 2px; }
.payg-feature span { font-size: 0.85rem; color: var(--text-secondary); }

/* ── Footer ────────────────────────────────────────────────── */
.footer {
    border-top: 1px solid var(--border);
    padding: 60px 0 32px;
    position: relative; z-index: 1;
}
.footer-grid {
    display: grid; grid-template-columns: 2fr 1.5fr 1fr 1.3fr; gap: 32px;
    margin-bottom: 40px;
}
.footer-col h4 { margin-bottom: 12px; }
.footer-tools-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 0 10px; }
.footer-logo {
    font-size: 1.2rem; font-weight: 700; color: var(--text);
    display: block; margin-bottom: 12px;
}
.footer-desc { color: var(--text-muted); font-size: 0.85rem; line-height: 1.6; margin-bottom: 16px; }
.footer-badges { display: flex; gap: 8px; }
.badge {
    padding: 3px 10px; border-radius: 4px;
    background: var(--bg-card); border: 1px solid var(--border);
    font-size: 0.7rem; color: var(--text-muted);
}
.footer-col h4 { font-size: 0.85rem; font-weight: 600; margin-bottom: 16px; }
.footer-col a {
    display: block; color: var(--text-muted); font-size: 0.85rem;
    padding: 4px 0; transition: color var(--transition);
}
.footer-col a:hover { color: var(--text); }
.footer-bottom {
    text-align: center; padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-muted); font-size: 0.8rem;
}

/* ── Toast ─────────────────────────────────────────────────── */
.toast-container {
    position: fixed; top: 80px; right: 24px; z-index: 200;
    display: flex; flex-direction: column; gap: 8px;
}
.toast {
    padding: 12px 20px; border-radius: var(--radius-sm);
    background: rgba(15, 15, 30, 0.95); backdrop-filter: blur(12px);
    border: 1px solid var(--border); color: var(--text);
    font-size: 0.85rem; animation: toastIn 0.3s ease;
    display: flex; align-items: center; gap: 8px;
}
.toast-success { border-left: 3px solid var(--success); }
.toast-warning { border-left: 3px solid var(--warning); }
.toast-error { border-left: 3px solid var(--error); }
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* ── Loading Overlay ───────────────────────────────────────── */
.loading-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(6, 6, 18, 0.7); z-index: 300;
    display: none; align-items: center; justify-content: center;
}
.loading-overlay.active { display: flex; }
.loading-spinner { text-align: center; }
.spinner-ring {
    width: 48px; height: 48px; border: 3px solid var(--border);
    border-top-color: var(--primary); border-radius: 50%;
    animation: spin 0.8s linear infinite; margin: 0 auto 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Range input styling */
input[type="range"] {
    -webkit-appearance: none; height: 4px; border-radius: 2px;
    background: rgba(255,255,255,0.1); outline: none;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; width: 16px; height: 16px;
    border-radius: 50%; background: var(--primary);
    cursor: pointer; border: 2px solid var(--bg);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .hero { grid-template-columns: 1fr; gap: 40px; padding: 40px 24px; min-height: auto; }
    .hero-title { font-size: 2.5rem; }
    .stats-section .stats-grid { grid-template-columns: repeat(4, 1fr); }
    .tools-grid { grid-template-columns: repeat(3, 1fr); }
    .tech-grid { grid-template-columns: 1fr; }
    .demo-panel { grid-template-columns: 1fr; }
    .demo-controls { flex-direction: row; padding-top: 0; }
    .tool-workspace { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto 60px; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .nav-links.open {
        display: flex; flex-direction: column;
        position: absolute; top: var(--nav-height); left: 0; right: 0;
        background: rgba(6, 6, 18, 0.98); padding: 16px;
        border-bottom: 1px solid var(--border);
    }
    .nav-dropdown-menu {
        position: static; transform: none; opacity: 1; visibility: visible;
        background: transparent; border: none; box-shadow: none;
        grid-template-columns: 1fr;
    }
    .hero-title { font-size: 2rem; }
    .tools-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-section .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .how-steps { flex-direction: column; align-items: center; }
    .how-connector { transform: rotate(90deg); padding: 0; }
    .demo-metrics { grid-template-columns: repeat(2, 1fr); }
    .detection-result, .coherence-result, .readability-result, .health-result {
        flex-direction: column; align-items: center;
    }
    .footer-grid { grid-template-columns: 1fr; }
    .api-features-preview { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .tools-grid { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; }
    .demo-metrics { grid-template-columns: 1fr; }
    .section-title { font-size: 1.8rem; }
    .text-stats { flex-wrap: wrap; }
}

/* ═══════════════════════════════════════════════════════════════
   Text Statistics Bar
   ═══════════════════════════════════════════════════════════════ */
.text-stats {
    display: flex;
    gap: 16px;
    padding: 8px 12px;
    background: rgba(255,255,255,0.02);
    border-top: 1px solid var(--border);
    border-radius: 0 0 var(--radius) var(--radius);
    font-size: 0.75rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}
.text-stats-output {
    border-top: none;
    border-bottom: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 8px;
}
.stat-item {
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}
.stat-item i {
    font-size: 0.65rem;
    color: var(--primary-light);
    opacity: 0.7;
}
.stat-item span {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════════════
   API Documentation Enhanced Styles
   ═══════════════════════════════════════════════════════════════ */

/* Table of Contents */
.api-toc {
    margin-bottom: 2rem;
    padding: 1.5rem;
}
.api-toc h3 {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--text-secondary);
}
.api-toc h3 i { margin-right: 8px; }
.toc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 6px;
}
.toc-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    transition: background var(--transition);
}
.toc-link:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text);
}
.ep-method-sm {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 3px;
    font-family: var(--font-mono);
}
.ep-method-sm.method-post { background: rgba(34,197,94,.15); color: #22c55e; }
.ep-method-sm.method-get { background: rgba(59,130,246,.15); color: #3b82f6; }

/* API Tables */
.api-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.85rem;
}
.api-table th {
    text-align: left;
    padding: 10px 14px;
    background: rgba(255,255,255,0.03);
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-weight: 600;
    white-space: nowrap;
}
.api-table td {
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    color: var(--text);
    vertical-align: top;
}
.api-table td code {
    background: rgba(124,58,237,0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--primary-light);
    font-family: var(--font-mono);
}
.api-table tr:hover td {
    background: rgba(255,255,255,0.02);
}

/* Endpoint detail blocks */
.api-endpoint-detail {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 1.5rem;
}
.ep-detail-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}
.ep-detail-header .ep-method {
    font-size: 0.8rem;
    padding: 4px 10px;
}
.ep-detail-header .ep-path {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    font-family: var(--font-mono);
}
.ep-detail-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}
.api-endpoint-detail h4 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-light);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Code tabs */
.code-tabs {
    margin: 1rem 0;
}
.code-tab-header {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0;
}
.code-tab {
    padding: 8px 20px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: var(--font);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition);
}
.code-tab:hover { color: var(--text); }
.code-tab.active {
    color: var(--primary-light);
    border-bottom-color: var(--primary);
}
.code-tab-body {
    display: none;
}
.code-tab-body.active {
    display: block;
}

/* API note */
.api-note {
    background: rgba(124,58,237,0.05);
    border: 1px solid rgba(124,58,237,0.15);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    line-height: 1.6;
}
.api-note i {
    color: var(--primary-light);
    margin-right: 6px;
}

/* SDK grid */
.sdk-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}
.sdk-card {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: all var(--transition);
}
.sdk-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}
.sdk-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}
.sdk-icon .fa-python { color: #3776AB; }
.sdk-icon .fa-js { color: #F7DF1E; }
.sdk-icon .fa-php { color: #777BB4; }
.sdk-card h4 {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}
.sdk-card code {
    display: block;
    background: rgba(255,255,255,0.04);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--secondary);
    font-family: var(--font-mono);
    margin-bottom: 0.75rem;
}
.sdk-link {
    font-size: 0.85rem;
    color: var(--primary-light);
    font-weight: 500;
}

/* Badge small */
.badge-sm {
    display: inline-block;
    font-size: 0.6rem;
    padding: 1px 6px;
    border-radius: 4px;
    background: rgba(245,158,11,.15);
    color: var(--warning);
    font-weight: 600;
    vertical-align: middle;
    margin-left: 4px;
}

/* Panel actions (paste/copy/clear buttons in header) */
.panel-actions {
    display: flex;
    gap: 6px;
    align-items: center;
}

/* API docs page specific */
.api-docs-page .api-section {
    margin-bottom: 2rem;
}
.api-docs-page .code-block {
    margin: 0.75rem 0;
}

/* Badge methods for overview table */
.badge-method {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.badge-post {
    background: rgba(34,197,94,0.15);
    color: #22c55e;
    border: 1px solid rgba(34,197,94,0.3);
}
.badge-get {
    background: rgba(59,130,246,0.15);
    color: #3b82f6;
    border: 1px solid rgba(59,130,246,0.3);
}

@media (max-width: 768px) {
    .toc-grid { grid-template-columns: 1fr; }
    .api-table { font-size: 0.75rem; }
    .api-table th, .api-table td { padding: 8px 10px; }
    .sdk-grid { grid-template-columns: 1fr; }
    .api-endpoint-detail { padding: 1rem; }
    .ep-detail-header { flex-wrap: wrap; }
}

/* ═══════════════════════════════════════════════════════════════
   LIGHT THEME
   ═══════════════════════════════════════════════════════════════ */
[data-theme="light"] {
    --bg: #f5f5f7;
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-card-hover: rgba(255, 255, 255, 0.9);
    --border: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 0, 0, 0.14);
    --text: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.08);
}
[data-theme="light"] body { background: #f5f5f7; color: #1e293b; }
[data-theme="light"] .nav { background: rgba(255,255,255,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(0,0,0,0.06); }
[data-theme="light"] .nav-link { color: #475569; }
[data-theme="light"] .nav-link:hover { color: #7c3aed; }
[data-theme="light"] .footer { background: #1e293b; }
[data-theme="light"] .btn-icon { background: rgba(0,0,0,0.04); color: #475569; }
[data-theme="light"] .btn-icon:hover { background: rgba(124,58,237,0.1); color: #7c3aed; }
[data-theme="light"] .v3-select { background: rgba(255,255,255,0.8); border-color: rgba(0,0,0,0.12); color: #1e293b; }
[data-theme="light"] .v3-textarea { color: #1e293b; }
[data-theme="light"] .v3-textarea::placeholder { color: #94a3b8; }
[data-theme="light"] .glass-panel { background: rgba(255,255,255,0.6); border-color: rgba(0,0,0,0.08); }
[data-theme="light"] .glass-panel-header { border-color: rgba(0,0,0,0.06); }
[data-theme="light"] .mcard { background: rgba(255,255,255,0.5); border-color: rgba(0,0,0,0.06); }
[data-theme="light"] .code-block { background: #1e293b; }
[data-theme="light"] .orb { display: none; }

/* ─── Theme Toggle (nav) ─── */
.theme-toggle {
    width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border);
    background: var(--bg-card); color: var(--text-secondary); cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 0.9rem; transition: all var(--transition);
}
.theme-toggle:hover { color: var(--primary); border-color: var(--primary); background: rgba(124,58,237,0.08); }

/* ═══════════════════════════════════════════════════════════════
   APP TOPBAR — for tool pages (body.is-tool-page)
   ═══════════════════════════════════════════════════════════════ */
.is-tool-page { background: var(--bg); }

.app-topbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: 48px;
    background: rgba(6, 6, 18, 0.85);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 16px 0 20px;
}
[data-theme="light"] .app-topbar {
    background: rgba(255,255,255,0.88);
    border-bottom-color: rgba(0,0,0,0.08);
}
.app-topbar-logo {
    display: flex; align-items: center; gap: 8px;
    font-size: 1.05rem; font-weight: 700; color: var(--text);
    text-decoration: none;
}
.app-topbar-logo .logo-icon { font-size: 1.15rem; }
.app-topbar-logo .logo-text {
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.app-topbar-actions {
    display: flex; align-items: center; gap: 6px;
}
.app-topbar-link {
    width: 34px; height: 34px; border-radius: 8px;
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--text-secondary); font-size: 0.85rem;
    transition: all 0.2s; text-decoration: none;
}
.app-topbar-link:hover { color: var(--primary); background: rgba(124,58,237,0.08); }
.app-topbar-btn {
    width: 34px; height: 34px; border-radius: 8px; border: none;
    background: none; color: var(--text-secondary); font-size: 0.85rem;
    cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
    transition: all 0.2s;
}
.app-topbar-btn:hover { color: var(--primary); background: rgba(124,58,237,0.08); }
.app-topbar .lang-selector .lang-btn {
    padding: 4px 10px; font-size: 0.8rem; height: 34px;
}

/* ═══════════════════════════════════════════════════════════════
   V3 — SIDEBAR APP LAYOUT
   ═══════════════════════════════════════════════════════════════ */

/* ─── Layout ─── */
.app-layout {
    display: flex;
    height: calc(100vh - 48px);
    margin-top: 48px;
    overflow: hidden;
}
.main-content {
    flex: 1;
    min-width: 0;
    padding: 24px 32px 48px;
    max-width: none;
    margin: 0;
    width: 100%;
    overflow-y: auto;
}
/* Legacy alias */
.tool-perplexity .main-content,
.is-tool-wide .main-content {
    max-width: none;
    margin: 0;
}

/* ─── Sidebar ─── */
.sidebar {
    width: 220px;
    height: 100%;
    background: rgba(6, 6, 18, 0.6);
    backdrop-filter: blur(12px);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    z-index: 10;
}
[data-theme="light"] .sidebar {
    background: rgba(255,255,255,0.65);
    backdrop-filter: blur(12px);
}
.sidebar.collapsed { width: 52px; }
.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    cursor: pointer;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
    flex-shrink: 0;
    font-size: 0.85rem;
}
.sidebar-toggle:hover { color: var(--primary); background: rgba(124,58,237,0.06); }
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 8px 6px;
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 2px; }
.sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    transition: all 0.15s;
    white-space: nowrap;
    overflow: hidden;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    position: relative;
}
.sidebar-item i {
    font-size: 0.9rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
    color: var(--si-color, var(--text-secondary));
}
.sidebar-item:hover {
    background: rgba(124,58,237,0.08);
    color: var(--text);
}
.sidebar-item.active {
    background: rgba(124,58,237,0.12);
    color: var(--primary);
    font-weight: 600;
}
.sidebar-item.active::before {
    content: '';
    position: absolute;
    left: 0; top: 4px; bottom: 4px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--primary);
}
.sidebar-item.active i { color: var(--primary); }
.sidebar-label {
    transition: opacity 0.2s;
}
.sidebar.collapsed .sidebar-label {
    opacity: 0;
    pointer-events: none;
    width: 0;
}
.sidebar.collapsed .sidebar-item {
    justify-content: center;
    padding: 9px;
}
.sidebar.collapsed .sidebar-item.active::before { display: none; }
.sidebar-bottom {
    padding: 6px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}
.sidebar-copyright {
    font-size: 0.68rem;
    color: var(--text-muted);
    justify-content: center;
    cursor: default;
}
.sidebar-copyright:hover { background: none; }

/* ─── first item separator (comprehensive vs tools) ─── */
.sidebar-nav .sidebar-item:first-child {
    margin-bottom: 4px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

/* ─── Tool Topbar ─── */
.tool-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 0 16px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}
.tool-topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}
.tool-icon-sm {
    width: 40px; height: 40px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; color: white; flex-shrink: 0;
}
.tool-topbar h1 {
    font-size: 1.2rem; font-weight: 700; margin: 0;
    line-height: 1.2;
}
.tool-desc-line {
    font-size: 0.78rem; color: var(--text-secondary); margin: 0;
}
.tool-topbar-right {
    display: flex; align-items: center; gap: 8px;
}
.elapsed-badge, .stat-badge {
    font-size: 0.72rem; font-weight: 600;
    padding: 3px 10px; border-radius: 16px;
    background: rgba(124,58,237,0.1); color: var(--primary-light);
    display: inline-flex; align-items: center; gap: 4px;
}

/* ─── V3 Input Card ─── */
.v3-input-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 24px;
    transition: border-color 0.3s;
}
.v3-input-card:focus-within {
    border-color: rgba(124,58,237,0.35);
    box-shadow: 0 0 0 3px rgba(124,58,237,0.06);
}
.v3-input-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    border-bottom: 1px solid var(--border);
}
.v3-tabs { display: flex; gap: 0; }
.v3-tab {
    padding: 11px 16px;
    background: none; border: none;
    color: var(--text-secondary);
    font-size: 0.84rem; font-weight: 500;
    cursor: pointer; transition: all var(--transition);
    border-bottom: 2px solid transparent;
    display: flex; align-items: center; gap: 6px;
}
.v3-tab:hover { color: var(--text); background: rgba(255,255,255,0.02); }
.v3-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.v3-actions { display: flex; gap: 4px; }
.tab-body { display: none; }
.tab-body.active { display: block; }

/* ─── V3 Textarea ─── */
.highlight-wrap {
    position: relative;
    overflow: hidden;
}
.highlight-layer {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    padding: 20px 24px;
    font-family: var(--font); font-size: 1rem; line-height: 1.75;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
    color: transparent;
    border: none;
}
.highlight-layer.active + .v3-textarea {
    background: transparent;
}
.hl-sent {
    border-radius: 3px;
    padding: 2px 0 2px 6px;
    transition: background-color 0.4s ease, border-color 0.4s ease;
    display: inline;
}

/* ─── Pattern Strip — visual bar chart below textarea ─── */
.pattern-strip {
    display: none;
    padding: 0 24px 8px;
    overflow: hidden;
}
.ps-bars {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 36px;
    background: rgba(255,255,255,0.02);
    border-radius: 0 0 8px 8px;
    padding: 3px 4px;
    border-top: 1px solid var(--border);
}
[data-theme="light"] .ps-bars { background: rgba(0,0,0,0.015); }
.ps-bar {
    flex: 1;
    min-width: 3px;
    border-radius: 2px 2px 0 0;
    transition: height 0.5s ease, background 0.3s ease;
    cursor: help;
    opacity: 0.75;
}
.ps-bar:hover { opacity: 1; transform: scaleY(1.1); transform-origin: bottom; }

/* ─── Tool Panel Score Rows ─── */
.tp-scores { display: flex; flex-direction: column; gap: 4px; }
.tp-score-row { display: flex; align-items: center; gap: 6px; font-size: 0.72rem; }
.tp-sn { flex: 0 0 70px; text-transform: capitalize; color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tp-sb { flex: 1; height: 4px; border-radius: 2px; background: rgba(255,255,255,0.06); overflow: hidden; }
[data-theme="light"] .tp-sb { background: rgba(0,0,0,0.06); }
.tp-sf { height: 100%; border-radius: 2px; transition: width 0.5s ease; }
.tp-sv { font-family: var(--font-mono); font-weight: 700; min-width: 30px; text-align: right; font-size: 0.68rem; }
.v3-textarea {
    width: 100%; min-height: 300px; padding: 20px 24px; resize: vertical;
    background: transparent; border: none; color: var(--text);
    font-family: var(--font); font-size: 1rem; line-height: 1.75;
    position: relative; z-index: 1;
    caret-color: var(--text);
}
.v3-textarea:focus { outline: none; }
.v3-textarea::placeholder { color: var(--text-muted); }

/* ─── File upload zone ─── */
.file-upload-zone {
    display: flex; flex-direction: column; align-items: center;
    justify-content: center; gap: 10px; padding: 40px 24px;
    color: var(--text-secondary); cursor: pointer;
    transition: all 0.2s; text-align: center;
}
.file-upload-zone i { font-size: 2rem; color: var(--primary); opacity: 0.6; }
.file-upload-zone:hover { background: rgba(124,58,237,0.04); }
.file-upload-zone.drag-over { background: rgba(124,58,237,0.08); border: 2px dashed var(--primary); }
.file-formats { font-size: 0.72rem; color: var(--text-muted); }
.file-info {
    display: flex; align-items: center; gap: 10px;
    padding: 14px 20px; font-size: 0.88rem; color: var(--text);
}
.url-input-group {
    display: flex; gap: 10px; padding: 14px 20px;
}
.url-input {
    flex: 1; padding: 10px 14px; background: rgba(255,255,255,0.04);
    border: 1px solid var(--border); border-radius: 8px;
    color: var(--text); font-family: var(--font); font-size: 0.88rem;
}
.url-input:focus { outline: none; border-color: var(--primary); }
.btn { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; border: none; border-radius: 8px; font-weight: 600; font-family: var(--font); transition: all var(--transition); }
.btn-sm { padding: 8px 14px; font-size: 0.82rem; }
.btn-accent { background: var(--primary); color: white; }
.btn-accent:hover { background: #6d28d9; }

/* ─── V3 Stats ─── */
.v3-stats {
    display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
    padding: 10px 20px; font-size: 0.78rem; color: var(--text-secondary);
    border-top: 1px solid var(--border); background: rgba(255,255,255,0.01);
}
.v3-stats span { display: flex; align-items: center; gap: 4px; }
.v3-stats i { font-size: 0.7rem; opacity: 0.7; }
.stat-type { margin-left: auto; }
[data-theme="light"] .v3-stats { background: rgba(0,0,0,0.01); }

/* ─── Highlight Legend ─── */
.hl-legend {
    display: flex !important; align-items: center; gap: 10px;
    margin-left: auto; padding: 2px 10px;
    background: rgba(124,58,237,0.06); border-radius: 6px;
    font-size: 0.7rem; font-weight: 600;
}
.hl-leg-item { display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.hl-leg-dot {
    width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}

/* ─── V3 Settings ─── */
.v3-settings {
    display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
    padding: 12px 20px; border-top: 1px solid var(--border);
    background: rgba(255,255,255,0.015);
}
.v3-setting { display: flex; align-items: center; gap: 8px; }
.v3-setting label {
    font-size: 0.8rem; color: var(--text-secondary); font-weight: 500;
    display: flex; align-items: center; gap: 5px; white-space: nowrap;
}
.v3-setting label i { font-size: 0.75rem; }
.v3-select {
    padding: 6px 12px; background: rgba(255,255,255,0.04);
    border: 1px solid var(--border); border-radius: 8px;
    color: var(--text); font-family: var(--font); font-size: 0.82rem;
}
.v3-select:focus { outline: none; border-color: var(--primary); }
.v3-spacer { flex: 1; }
.range-group { display: flex; align-items: center; gap: 8px; }
.range-group input[type="range"] { width: 100px; accent-color: var(--primary); }
.range-value { font-size: 0.78rem; color: var(--primary-light); font-weight: 600; min-width: 32px; }
[data-theme="light"] .v3-settings { background: rgba(0,0,0,0.015); }

/* ─── Process Button ─── */
.v3-btn-process {
    padding: 10px 28px;
    background: var(--primary);
    color: white; border: none;
    border-radius: var(--radius);
    cursor: pointer; font-weight: 700;
    font-size: 0.92rem;
    transition: all var(--transition);
    display: flex; align-items: center; gap: 8px;
    white-space: nowrap;
}
.v3-btn-process:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(124,58,237,0.3); }
.v3-btn-process:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ─── V3 Output ─── */
.v3-output { min-height: 40px; }
.v3-extended { margin-top: 0; }
.v3-result-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden; margin-bottom: 16px; padding: 24px;
}
.v3-result-row {
    display: flex; align-items: flex-start; gap: 28px;
}
.v3-gauge-col { flex-shrink: 0; }
.v3-info-col { flex: 1; min-width: 0; }

/* ─── Chips ─── */
.v3-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
    padding: 4px 14px; border-radius: 20px; font-size: 0.78rem; font-weight: 600;
    display: inline-flex; align-items: center; gap: 5px;
    background: rgba(255,255,255,0.06); color: var(--text-secondary);
}
.chip-ai { background: rgba(239,68,68,0.12); color: #ef4444; }
.chip-human { background: rgba(34,197,94,0.12); color: #22c55e; }
[data-theme="light"] .chip { background: rgba(0,0,0,0.05); }
[data-theme="light"] .chip-ai { background: rgba(239,68,68,0.08); }
[data-theme="light"] .chip-human { background: rgba(34,197,94,0.08); }

/* ─── V3 Annotated text ─── */
.v3-annotated {
    font-size: 0.95rem; line-height: 2; padding: 16px; word-wrap: break-word;
}
.v3-anno-sent {
    padding: 2px 1px 4px; border-radius: 2px; transition: all 0.2s;
    cursor: default; position: relative;
}
.v3-anno-sent:hover { filter: brightness(1.15); }
.v3-anno-score {
    font-size: 0.62rem; font-weight: 700; font-family: var(--font-mono);
    margin-left: 1px; vertical-align: super; opacity: 0.85;
}

/* ─── Sentence bars ─── */
.sentence-bar {
    display: flex; gap: 2px; height: 6px; margin: 12px 16px 4px; border-radius: 3px; overflow: hidden;
}
.sbar-seg {
    flex: 1; min-width: 4px; border-radius: 2px; transition: transform 0.2s;
}
.sbar-seg:hover { transform: scaleY(2); }
.sbar-legend {
    display: flex; gap: 16px; font-size: 0.72rem; padding: 4px 16px 12px;
    color: var(--text-secondary);
}
.sbar-legend span { display: flex; align-items: center; gap: 5px; }

/* ─── Verdict Badges ─── */
.verdict-badge {
    display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px;
    border-radius: 10px; font-weight: 700; font-size: 0.9rem; margin-bottom: 12px;
}
.verdict-ai { background: rgba(239,68,68,0.12); color: #ef4444; }
.verdict-mixed { background: rgba(245,158,11,0.12); color: #f59e0b; }
.verdict-human { background: rgba(34,197,94,0.12); color: #22c55e; }

/* ─── Info box ─── */
.info-box {
    display: flex; align-items: flex-start; gap: 10px; padding: 12px 16px;
    border-radius: 10px; font-size: 0.85rem; color: var(--text-secondary);
    background: rgba(124,58,237,0.06); margin-bottom: 10px;
    line-height: 1.5;
}
.info-box i { margin-top: 2px; flex-shrink: 0; color: var(--primary); }
.info-box-light { background: rgba(255,255,255,0.03); }
[data-theme="light"] .info-box { background: rgba(124,58,237,0.05); }
[data-theme="light"] .info-box-light { background: rgba(0,0,0,0.02); }

/* ─── Metric Cards ─── */
.metric-cards {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px; margin: 16px 0;
}
.mcard {
    display: flex; align-items: center; gap: 12px; padding: 14px 16px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); transition: all 0.2s;
}
.mcard:hover { border-color: var(--border-hover); }
.mcard-icon {
    width: 36px; height: 36px; border-radius: 10px;
    background: rgba(124,58,237,0.1); color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem; flex-shrink: 0;
}
.mcard-val { font-size: 1.1rem; font-weight: 700; }
.mcard-label { font-size: 0.72rem; color: var(--text-secondary); }

/* ─── Glass Panel ─── */
.glass-panel {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); margin-bottom: 16px; overflow: hidden;
}
.glass-panel-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 20px; border-bottom: 1px solid var(--border);
}
.glass-panel-header h3 {
    font-size: 0.92rem; font-weight: 600;
    display: flex; align-items: center; gap: 8px; margin: 0;
}
.glass-panel-body { padding: 0; }

/* ─── Scores Grid ─── */
.scores-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 8px; padding: 16px 20px;
}
.score-bar-item {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 0; font-size: 0.82rem;
}
.sb-name { flex: 0 0 90px; color: var(--text-secondary); text-transform: capitalize; }
.sb-track {
    flex: 1; height: 6px; border-radius: 3px;
    background: rgba(255,255,255,0.06); overflow: hidden;
}
[data-theme="light"] .sb-track { background: rgba(0,0,0,0.06); }
.sb-fill {
    height: 100%; border-radius: 3px;
    transition: width 0.8s ease;
}
.sb-val { flex: 0 0 40px; text-align: right; font-weight: 700; font-family: var(--font-mono); font-size: 0.78rem; }

/* ─── Grammar Issues ─── */
.gram-issues { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.gram-issue {
    display: flex; align-items: flex-start; gap: 10px; padding: 12px 14px;
    background: rgba(245,158,11,0.06); border: 1px solid rgba(245,158,11,0.15);
    border-radius: 10px; font-size: 0.85rem;
}
.gram-issue.issue-error { background: rgba(239,68,68,0.06); border-color: rgba(239,68,68,0.15); }
.gram-issue i { margin-top: 2px; flex-shrink: 0; }
.gi-body { flex: 1; min-width: 0; }
.gi-msg { font-weight: 600; margin-bottom: 4px; }
.gi-ctx { font-size: 0.8rem; color: var(--text-muted); font-style: italic; }
.gi-fix { font-size: 0.82rem; color: #22c55e; margin-top: 4px; }
.gram-count { font-size: 1rem; font-weight: 600; margin-bottom: 10px; color: #f59e0b; }
.gram-ok { font-size: 1.1rem; color: #22c55e; display: flex; align-items: center; gap: 10px; }

/* ─── Result Text Block ─── */
.result-text-block {
    padding: 20px 24px; font-size: 0.92rem; line-height: 1.8;
    white-space: pre-wrap; word-wrap: break-word;
    color: var(--text);
}

/* ─── Text Result Card ─── */
.v3-text-result {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
}
.v3-text-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 20px; border-bottom: 1px solid var(--border);
    font-size: 0.9rem; font-weight: 600;
}
.v3-text-header span { display: flex; align-items: center; gap: 8px; }
.v3-text-actions { display: flex; align-items: center; gap: 8px; }
.v3-text-result .result-text-block { border: none; border-radius: 0; min-height: 180px; }

/* ─── Humanize CTA ─── */
.v3-humanize-cta {
    display: flex; align-items: center; justify-content: space-between;
    gap: 20px; padding: 18px 24px; margin-top: 16px;
    background: linear-gradient(135deg, rgba(124,58,237,0.08) 0%, rgba(168,85,247,0.04) 100%);
    border: 1px dashed rgba(124,58,237,0.4); border-radius: var(--radius);
}
.v3-humanize-msg {
    font-size: 0.88rem; color: var(--text-secondary);
    display: flex; align-items: center; gap: 8px;
}
.v3-humanize-btn {
    padding: 9px 22px; background: var(--primary); color: white;
    border: none; border-radius: 10px; font-weight: 700; font-size: 0.85rem;
    text-decoration: none; display: inline-flex; align-items: center; gap: 7px;
    transition: all var(--transition); white-space: nowrap;
}
.v3-humanize-btn:hover { background: #6d28d9; transform: translateY(-1px); }
.v3-humanize-inline {
    padding: 6px 16px; background: rgba(124,58,237,0.1); color: var(--primary);
    border: 1px solid rgba(124,58,237,0.3); border-radius: 8px;
    font-weight: 600; font-size: 0.8rem; text-decoration: none;
    display: inline-flex; align-items: center; gap: 5px;
    transition: all var(--transition); margin-top: 10px;
}
.v3-humanize-inline:hover { background: var(--primary); color: white; }
[data-theme="light"] .v3-humanize-cta { background: linear-gradient(135deg, rgba(124,58,237,0.06) 0%, rgba(168,85,247,0.02) 100%); }

/* ─── Tool Live Panel (right sidebar for ALL tools) ─── */
.tool-live-panel,
.ppl-live-panel {
    width: 340px; min-width: 300px; max-width: 380px;
    height: calc(100vh - 48px);
    overflow-y: auto; flex-shrink: 0;
    position: sticky; top: 48px;
    padding: 16px;
    border-left: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
    scrollbar-width: thin;
}
[data-theme="light"] .tool-live-panel,
[data-theme="light"] .ppl-live-panel { background: rgba(0,0,0,0.015); }
.tool-panel-placeholder,
.ppl-panel-placeholder {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 12px; height: 200px; color: var(--text-secondary); text-align: center;
    font-size: 0.84rem;
}
.tool-panel-placeholder i,
.ppl-panel-placeholder i { font-size: 2rem; opacity: 0.3; }
.ppl-panel-loading { text-align: center; padding: 40px 0; color: var(--primary); font-size: 1.4rem; }

/* Panel hero */
.ppl-p-hero {
    display: flex; align-items: center; gap: 14px; margin-bottom: 14px;
}
.ppl-p-score-wrap { flex: 1; }
.ppl-p-score { font-size: 1.8rem; font-weight: 900; font-family: var(--font-mono); line-height: 1; }
.ppl-p-label { font-size: 0.7rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.ppl-p-hero .verdict-badge { font-size: 0.75rem; padding: 4px 12px; }

/* Panel mini metrics */
.ppl-p-metrics {
    display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 14px;
}
.ppl-p-m {
    text-align: center; padding: 8px 4px;
    background: rgba(255,255,255,0.03); border: 1px solid var(--border);
    border-radius: 8px;
}
[data-theme="light"] .ppl-p-m { background: rgba(0,0,0,0.02); }
.ppl-p-mv { font-family: var(--font-mono); font-size: 0.85rem; font-weight: 800; }
.ppl-p-ml { font-size: 0.6rem; color: var(--text-secondary); text-transform: uppercase; margin-top: 2px; }

/* Panel sections */
.ppl-p-section { margin-bottom: 14px; }
.ppl-p-sh { font-size: 0.78rem; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }
.ppl-p-sh i { color: var(--primary); font-size: 0.72rem; }

/* Panel spark chart */
.ppl-p-spark {
    display: flex; align-items: flex-end; gap: 2px; height: 80px;
    background: rgba(255,255,255,0.02); border-radius: 6px; padding: 4px;
}
[data-theme="light"] .ppl-p-spark { background: rgba(0,0,0,0.02); }

/* Panel sentence list */
.ppl-p-sents { display: flex; flex-direction: column; gap: 4px; max-height: 300px; overflow-y: auto; scrollbar-width: thin; }
.ppl-p-sent {
    display: flex; align-items: center; gap: 6px;
    padding: 5px 8px; border-radius: 6px; font-size: 0.72rem;
    background: rgba(255,255,255,0.02); border: 1px solid transparent;
}
.ppl-p-sent:hover { border-color: var(--border); }
[data-theme="light"] .ppl-p-sent { background: rgba(0,0,0,0.015); }
.ppl-p-stext { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text-secondary); }
.ppl-p-sbar { width: 50px; height: 3px; border-radius: 2px; background: rgba(255,255,255,0.06); overflow: hidden; flex-shrink: 0; }
[data-theme="light"] .ppl-p-sbar { background: rgba(0,0,0,0.06); }
.ppl-p-sval { font-family: var(--font-mono); font-weight: 700; min-width: 36px; text-align: right; flex-shrink: 0; font-size: 0.7rem; }

/* Panel scale */
.ppl-p-scale-bar { margin-top: 4px; }
.ppl-scale-track {
    display: flex; height: 8px; border-radius: 4px; overflow: visible; position: relative;
}
.ppl-scale-zone { height: 100%; }
.ppl-scale-zone:first-child { border-radius: 4px 0 0 4px; }
.ppl-scale-zone:last-of-type { border-radius: 0 4px 4px 0; }
.ppl-scale-marker {
    position: absolute; top: -3px; width: 3px; height: 14px; border-radius: 2px;
    background: white; border: 2px solid; transform: translateX(-50%);
    box-shadow: 0 0 6px rgba(0,0,0,0.3);
    transition: left 0.5s ease;
}
.ppl-scale-labels {
    display: flex; justify-content: space-between; font-size: 0.6rem; font-weight: 700;
    margin-top: 4px; padding: 0 2px;
}

/* Responsive: hide panel on narrow screens */
@media (max-width: 1100px) {
    .tool-live-panel, .ppl-live-panel { display: none; }
}

/* ─── Perplexity Rich UI ─── */
.ppl-hero-grid {
    display: flex; align-items: center; gap: 28px;
}
.ppl-hero-gauge { flex-shrink: 0; }
.ppl-hero-info { flex: 1; min-width: 0; }
.ppl-big-score {
    font-size: 2.4rem; font-weight: 900; font-family: var(--font-mono); line-height: 1;
}
.ppl-big-label {
    font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 10px; text-transform: uppercase;
    letter-spacing: 0.5px;
}
.ppl-chart-card { }
.ppl-chart-header {
    font-size: 0.95rem; font-weight: 700; margin-bottom: 16px;
    display: flex; align-items: center; gap: 8px;
}
.ppl-chart-header i { color: var(--primary); }
.ppl-spark-chart {
    display: flex; align-items: flex-end; gap: 2px; height: 120px;
    padding: 0 4px; background: rgba(255,255,255,0.02); border-radius: 8px;
}
[data-theme="light"] .ppl-spark-chart { background: rgba(0,0,0,0.02); }
.ppl-spark-bar {
    flex: 1; min-width: 3px; max-width: 24px; border-radius: 3px 3px 0 0;
    transition: opacity 0.2s; cursor: default;
}
.ppl-spark-bar:hover { opacity: 0.75; }
.ppl-spark-legend {
    display: flex; justify-content: space-between; font-size: 0.72rem;
    color: var(--text-secondary); margin-top: 6px; padding: 0 4px;
}
.ppl-spark-legend i { margin-right: 4px; }
.ppl-chart-explain {
    font-size: 0.8rem; color: var(--text-secondary); margin-top: 10px;
    padding: 10px 14px; background: rgba(124,58,237,0.06); border-radius: 8px;
    line-height: 1.5;
}
[data-theme="light"] .ppl-chart-explain { background: rgba(124,58,237,0.04); }

/* AI vs Human comparison */
.ppl-compare-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.ppl-compare-col {
    padding: 16px; border-radius: 12px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
}
[data-theme="light"] .ppl-compare-col { background: rgba(0,0,0,0.02); }
.ppl-compare-ai { border-color: rgba(239,68,68,0.2); }
.ppl-compare-human { border-color: rgba(34,197,94,0.2); }
.ppl-compare-label {
    font-size: 0.85rem; font-weight: 700; margin-bottom: 12px;
    display: flex; align-items: center; gap: 8px;
}
.ppl-compare-ai .ppl-compare-label { color: #ef4444; }
.ppl-compare-human .ppl-compare-label { color: #22c55e; }
.ppl-compare-bars {
    display: flex; align-items: flex-end; gap: 3px; height: 80px;
    margin-bottom: 12px;
}
.ppl-cbar {
    flex: 1; border-radius: 2px 2px 0 0; min-width: 0;
}
.ppl-compare-desc {
    font-size: 0.78rem; color: var(--text-secondary); line-height: 1.5;
}

/* Per-sentence table */
.ppl-sent-table { display: flex; flex-direction: column; gap: 6px; }
.ppl-sent-row {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; border-radius: 8px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
}
[data-theme="light"] .ppl-sent-row { background: rgba(0,0,0,0.02); }
.ppl-sent-num {
    width: 24px; height: 24px; border-radius: 50%;
    background: rgba(124,58,237,0.15); color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.72rem; font-weight: 700; flex-shrink: 0;
}
.ppl-sent-content { flex: 1; min-width: 0; }
.ppl-sent-text {
    font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 4px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ppl-sent-bar-track {
    height: 4px; background: rgba(255,255,255,0.06); border-radius: 2px;
    overflow: hidden;
}
[data-theme="light"] .ppl-sent-bar-track { background: rgba(0,0,0,0.06); }
.ppl-sent-bar-fill {
    height: 100%; border-radius: 2px; transition: width 0.5s ease;
}
.ppl-sent-val {
    font-family: var(--font-mono); font-size: 0.85rem; font-weight: 800;
    min-width: 48px; text-align: right; flex-shrink: 0;
}

/* Method explanation */
.ppl-method-body p {
    font-size: 0.88rem; line-height: 1.6; color: var(--text-secondary);
    margin-bottom: 16px;
}
.ppl-method-steps { display: flex; flex-direction: column; gap: 12px; }
.ppl-step {
    display: flex; gap: 14px; align-items: flex-start;
    padding: 12px 16px; border-radius: 10px;
    background: rgba(255,255,255,0.03); border: 1px solid var(--border);
}
[data-theme="light"] .ppl-step { background: rgba(0,0,0,0.02); }
.ppl-step-num {
    width: 32px; height: 32px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #a855f7);
    color: white; display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 0.85rem; flex-shrink: 0;
}
.ppl-step-body {
    font-size: 0.84rem; line-height: 1.5; color: var(--text-secondary);
}
.ppl-step-body strong { color: var(--text-primary); }
.ppl-method-note {
    margin-top: 16px; padding: 12px 16px; border-radius: 10px;
    background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(168,85,247,0.05));
    font-size: 0.84rem; font-weight: 600; color: var(--primary);
    display: flex; align-items: center; gap: 10px;
}

/* Reference table */
.ppl-ref-table { display: flex; flex-direction: column; gap: 2px; }
.ppl-ref-row {
    display: grid; grid-template-columns: 90px 80px 1fr 90px;
    gap: 12px; align-items: center; padding: 10px 14px; border-radius: 6px;
    font-size: 0.82rem;
}
.ppl-ref-header {
    font-weight: 700; color: var(--text-secondary); font-size: 0.75rem;
    text-transform: uppercase; letter-spacing: 0.3px;
    border-bottom: 1px solid var(--border); padding-bottom: 8px; margin-bottom: 4px;
}
.ppl-ref-row:not(.ppl-ref-header):nth-child(even) { background: rgba(255,255,255,0.02); }
[data-theme="light"] .ppl-ref-row:not(.ppl-ref-header):nth-child(even) { background: rgba(0,0,0,0.02); }
.ppl-ref-row .chip { margin: 0; font-size: 0.7rem; }

@media (max-width: 700px) {
    .ppl-hero-grid { flex-direction: column; text-align: center; }
    .ppl-compare-grid { grid-template-columns: 1fr; }
    .ppl-ref-row { grid-template-columns: 70px 60px 1fr 70px; gap: 8px; font-size: 0.75rem; }
}

/* ─── Readability extras ─── */
.read-grade { font-size: 1.05rem; margin-bottom: 12px; }
.read-details { display: flex; flex-direction: column; gap: 4px; margin-top: 10px; }
.read-row {
    display: flex; justify-content: space-between; padding: 6px 0;
    font-size: 0.84rem; border-bottom: 1px solid var(--border);
}

/* ─── Tone bars ─── */
.tone-bars { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; width: 100%; }
.tone-bar-row { display: flex; align-items: center; gap: 10px; font-size: 0.84rem; }
.tb-name { flex: 0 0 100px; text-transform: capitalize; color: var(--text-secondary); }
.tb-track { flex: 1; height: 8px; border-radius: 4px; background: rgba(255,255,255,0.06); overflow: hidden; }
[data-theme="light"] .tb-track { background: rgba(0,0,0,0.06); }
.tb-fill { height: 100%; border-radius: 4px; background: var(--primary); transition: width 0.6s ease; }
.tb-val { flex: 0 0 36px; text-align: right; font-weight: 700; font-family: var(--font-mono); font-size: 0.78rem; }

/* ─── Object Details ─── */
.obj-details { margin-top: 10px; }
.od-row {
    display: flex; justify-content: space-between; padding: 6px 0;
    border-bottom: 1px solid var(--border); font-size: 0.84rem;
}
.od-row span { color: var(--text-secondary); }

/* ─── Health extras ─── */
.health-pct { font-size: 1.4rem; font-weight: 800; margin-bottom: 8px; }
.health-comps { margin-top: 12px; }

/* ─── Watermark extras ─── */
.wm-types { margin-top: 12px; }
.wm-types h4 { font-size: 0.88rem; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.wm-type-list { display: flex; flex-wrap: wrap; gap: 6px; }
.wm-type-badge {
    padding: 4px 12px; border-radius: 6px; font-size: 0.78rem; font-weight: 500;
    background: rgba(239,68,68,0.1); color: #ef4444;
}

/* ─── Sent originality ─── */
.sent-orig-list { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.sent-orig {
    display: flex; align-items: center; gap: 10px; font-size: 0.82rem;
}
.so-bar { width: 60px; height: 6px; border-radius: 3px; background: rgba(255,255,255,0.06); overflow: hidden; flex-shrink: 0; }
[data-theme="light"] .so-bar { background: rgba(0,0,0,0.06); }
.so-fill { height: 100%; border-radius: 3px; }
.so-text { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text-secondary); }
.so-score { flex-shrink: 0; font-weight: 700; font-family: var(--font-mono); font-size: 0.78rem; }

/* ─── Variant items ─── */
.variant-item {
    padding: 14px 20px; border-bottom: 1px solid var(--border);
}
.variant-item:last-child { border-bottom: none; }
.var-num { font-size: 0.75rem; font-weight: 700; color: var(--primary); margin-right: 8px; }

/* ─── Details/Summary ─── */
.v3-details {
    margin-top: 24px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
}
.v3-details summary {
    padding: 14px 20px; cursor: pointer; font-weight: 600; font-size: 0.88rem;
    display: flex; align-items: center; gap: 10px; color: var(--text-secondary);
    transition: all 0.2s;
}
.v3-details summary:hover { color: var(--text); background: rgba(255,255,255,0.02); }
.v3-details[open] summary { border-bottom: 1px solid var(--border); }
.code-block {
    background: #0d0d1a; border-radius: 0;
}
.code-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 16px; border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 0.75rem; color: var(--text-secondary);
}
.code-block pre {
    margin: 0; padding: 16px 20px; overflow-x: auto;
}
.code-block code {
    font-family: var(--font-mono); font-size: 0.82rem;
    color: #a5b4fc; line-height: 1.6;
}

/* ─── V3 Loading / Error ─── */
.v3-loading {
    display: flex; flex-direction: column; align-items: center; gap: 16px;
    padding: 48px 20px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius);
}
.v3-loading span { font-size: 0.85rem; color: var(--text-secondary); }
.v3-loading-bar { width: 240px; height: 4px; border-radius: 2px; background: rgba(255,255,255,0.08); overflow: hidden; }
[data-theme="light"] .v3-loading-bar { background: rgba(0,0,0,0.08); }
.v3-loading-fill {
    width: 40%; height: 100%; background: var(--primary); border-radius: 2px;
    animation: v2LoadSlide 1.2s ease-in-out infinite;
}
.v3-error {
    display: flex; align-items: center; gap: 12px; padding: 20px 24px;
    background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2);
    border-radius: var(--radius); color: #ef4444; font-size: 0.9rem;
}
.v3-error i { font-size: 1.2rem; flex-shrink: 0; }

/* ─── Comprehensive V3 ─── */
.v3-comp { padding: 0; }
.v3-comp h2 {
    font-size: 1.15rem; font-weight: 700; margin-bottom: 20px;
    display: flex; align-items: center; gap: 10px;
}
.v3-comp-steps {
    display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px;
}
.v3-comp-step {
    display: flex; align-items: center; gap: 8px; padding: 9px 16px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); font-size: 0.82rem; color: var(--text-secondary);
    transition: all 0.3s;
}
.v3-comp-step i:first-child { font-size: 0.85rem; }
.v3-comp-step.done { border-color: rgba(34,197,94,0.3); background: rgba(34,197,94,0.04); color: var(--text); }
.v3-comp-status { margin-left: 4px; }
.v3-comp-gauges {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 14px; margin-bottom: 24px;
}
.v3-cg {
    text-align: center; padding: 14px 6px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    min-width: 0;
}
.v3-cg-label {
    font-size: 0.74rem; font-weight: 600; color: var(--text-secondary);
    margin-bottom: 10px; display: flex; align-items: center;
    justify-content: center; gap: 5px;
}
.v3-comp-done {
    text-align: center; padding: 16px; font-size: 0.9rem; font-weight: 600;
    color: #22c55e; display: flex; align-items: center; justify-content: center; gap: 8px;
    margin-top: 20px;
}

/* ─── SVG Gauge ─── */
.svg-gauge {
    position: relative; display: inline-flex;
    align-items: center; justify-content: center;
}
.svg-gauge svg { position: absolute; top: 0; left: 0; }
.svg-gauge .gauge-center {
    position: relative; z-index: 1; text-align: center;
    top: auto; left: auto; transform: none;
    overflow: hidden; text-overflow: ellipsis;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.svg-gauge .gauge-val {
    font-weight: 800; font-family: var(--font-mono);
    white-space: nowrap; line-height: 1.1;
    overflow: hidden; text-overflow: ellipsis;
    max-width: 100%;
}
.svg-gauge .gauge-sub {
    font-size: 0.65rem; color: var(--text-secondary); margin-top: 1px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    max-width: 100%; opacity: 0.85;
}

/* ─── V3 Responsive ─── */
@media (max-width: 900px) {
    .sidebar { position: fixed; left: -220px; top: 48px; height: calc(100vh - 48px); z-index: 50; transition: left 0.3s ease; }
    .sidebar.mobile-open { left: 0; box-shadow: 4px 0 24px rgba(0,0,0,0.3); }
    .sidebar.collapsed { left: -52px; }
    .main-content { padding: 16px 16px 48px; }
    .tool-topbar { flex-direction: column; align-items: flex-start; }
    .v3-result-row { flex-direction: column; align-items: center; text-align: center; }
    .v3-comp-gauges { grid-template-columns: repeat(3, 1fr); }
    .v3-settings { flex-direction: column; align-items: stretch; }
    .v3-spacer { display: none; }
    .v3-btn-process { width: 100%; justify-content: center; }
    .v3-humanize-cta { flex-direction: column; text-align: center; }
    .scores-grid { grid-template-columns: 1fr; }
    .app-topbar { padding: 0 12px; }
}
@media (max-width: 600px) {
    .v3-textarea { min-height: 200px; font-size: 0.92rem; padding: 14px 16px; }
    .highlight-layer { padding: 14px 16px; font-size: 0.92rem; }
    .v3-comp-gauges { grid-template-columns: repeat(2, 1fr); }
    .v3-input-header { flex-direction: column; gap: 6px; padding: 8px 12px; }
    .v3-comp-steps { flex-direction: column; }
    .metric-cards { grid-template-columns: 1fr; }
}

/* ─── Light theme overrides for tool page ─── */
[data-theme="light"] .v3-input-card { background: rgba(255,255,255,0.8); border-color: rgba(0,0,0,0.1); }
[data-theme="light"] .v3-result-card { background: rgba(255,255,255,0.7); border-color: rgba(0,0,0,0.08); }
[data-theme="light"] .v3-text-result { background: rgba(255,255,255,0.7); border-color: rgba(0,0,0,0.08); }
[data-theme="light"] .v3-details { background: rgba(255,255,255,0.5); border-color: rgba(0,0,0,0.08); }
[data-theme="light"] .v3-comp-step { background: rgba(255,255,255,0.5); border-color: rgba(0,0,0,0.06); }
[data-theme="light"] .v3-cg { background: rgba(255,255,255,0.5); border-color: rgba(0,0,0,0.06); }
[data-theme="light"] .v3-loading-bar { background: rgba(0,0,0,0.08); }
[data-theme="light"] .v3-stats { background: rgba(0,0,0,0.02); }
[data-theme="light"] .v3-settings { background: rgba(0,0,0,0.02); }
[data-theme="light"] .url-input { background: rgba(255,255,255,0.6); border-color: rgba(0,0,0,0.1); color: #1e293b; }
[data-theme="light"] .sidebar-item:hover { background: rgba(124,58,237,0.06); }
[data-theme="light"] .sidebar-item.active { background: rgba(124,58,237,0.1); }
[data-theme="light"] .chip { background: rgba(0,0,0,0.05); }
[data-theme="light"] .chip-ai { background: rgba(239,68,68,0.08); }
[data-theme="light"] .chip-human { background: rgba(34,197,94,0.08); }
[data-theme="light"] .sb-track { background: rgba(0,0,0,0.06); }
[data-theme="light"] .tb-track { background: rgba(0,0,0,0.06); }
[data-theme="light"] .so-bar { background: rgba(0,0,0,0.06); }
[data-theme="light"] .info-box { background: rgba(124,58,237,0.05); }
[data-theme="light"] .info-box-light { background: rgba(0,0,0,0.02); }
[data-theme="light"] .v3-humanize-cta { background: linear-gradient(135deg, rgba(124,58,237,0.06) 0%, rgba(168,85,247,0.02) 100%); }

/* ═══════ CUSTOM TOOLTIP SYSTEM ═══════ */
.custom-tooltip {
    position: fixed;
    transform: translate(-50%, -100%);
    padding: 10px 16px;
    background: rgba(15, 15, 35, 0.96);
    color: #e2e8f0;
    font-size: 0.78rem;
    line-height: 1.5;
    border-radius: 10px;
    border: 1px solid rgba(124,58,237,0.35);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4), 0 0 0 1px rgba(124,58,237,0.1);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.18s ease;
    z-index: 10000;
    max-width: 340px;
    word-wrap: break-word;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: none;
}
.custom-tooltip.visible { opacity: 1; }
[data-theme="light"] .custom-tooltip {
    background: rgba(255,255,255,0.97);
    color: #1e293b;
    border-color: rgba(0,0,0,0.12);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12), 0 1px 3px rgba(0,0,0,0.08);
}

/* ═══════ COPY ALL BUTTON ═══════ */
.v3-copy-all-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    margin-bottom: 12px;
    background: rgba(124,58,237,0.1);
    color: var(--primary, #7c3aed);
    border: 1px solid rgba(124,58,237,0.25);
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}
.v3-copy-all-btn:hover {
    background: rgba(124,58,237,0.2);
    border-color: rgba(124,58,237,0.4);
    transform: translateY(-1px);
}
.v3-copy-all-btn i { font-size: 0.9rem; }
[data-theme="light"] .v3-copy-all-btn {
    background: rgba(124,58,237,0.06);
    border-color: rgba(124,58,237,0.15);
}

/* ═══════ STATS GRID (statistics tool) ═══════ */
.tool-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    padding: 16px;
}
.stat-cell {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    padding: 16px 12px;
    text-align: center;
    transition: transform 0.15s ease, background 0.15s ease;
}
.stat-cell:hover {
    transform: translateY(-2px);
    background: rgba(124,58,237,0.06);
}
.stat-cell-icon {
    font-size: 1.2rem;
    color: var(--primary, #7c3aed);
    margin-bottom: 8px;
    opacity: 0.7;
}
.stat-cell-val {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text, #e2e8f0);
    margin-bottom: 4px;
}
.stat-cell-label {
    font-size: 0.7rem;
    color: var(--text-secondary, #94a3b8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
[data-theme="light"] .stat-cell {
    background: rgba(0,0,0,0.02);
    border-color: rgba(0,0,0,0.06);
}
[data-theme="light"] .stat-cell:hover {
    background: rgba(124,58,237,0.04);
}

/* ═══════ KEYWORD CLOUD ═══════ */
.kw-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px;
}
.kw-cloud-big { gap: 10px; padding: 16px; }
.kw-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    background: rgba(124,58,237,0.1);
    border: 1px solid rgba(124,58,237,0.2);
    border-radius: 20px;
    font-size: 0.82rem;
    color: var(--primary, #a78bfa);
    transition: transform 0.15s ease, background 0.15s ease;
}
.kw-tag:hover { transform: scale(1.05); background: rgba(124,58,237,0.15); }
.kw-tag sup {
    font-size: 0.6rem;
    opacity: 0.6;
    margin-left: 2px;
}
.kw-tag-big {
    padding: 8px 18px;
    border-radius: 24px;
    font-weight: 500;
}
[data-theme="light"] .kw-tag {
    background: rgba(124,58,237,0.06);
    border-color: rgba(124,58,237,0.12);
    color: #7c3aed;
}

/* ═══════ KEYWORD TABLE ═══════ */
.kw-table {
    margin-top: 16px;
    padding: 0 16px 16px;
}
.kw-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.kw-row:last-child { border-bottom: none; }
.kw-num {
    width: 24px;
    text-align: center;
    font-size: 0.72rem;
    color: var(--text-secondary);
    font-weight: 600;
}
.kw-word {
    flex: 1;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
}
.kw-bar {
    width: 120px;
    height: 6px;
    background: rgba(255,255,255,0.06);
    border-radius: 3px;
    overflow: hidden;
}
.kw-bar-fill {
    height: 100%;
    background: var(--primary, #7c3aed);
    border-radius: 3px;
    transition: width 0.3s ease;
}
.kw-freq {
    width: 50px;
    text-align: right;
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 600;
}
[data-theme="light"] .kw-row { border-color: rgba(0,0,0,0.05); }
[data-theme="light"] .kw-bar { background: rgba(0,0,0,0.06); }

/* ═══════ SENTIMENT ═══════ */
.sentiment-big {
    text-align: center;
    margin: 8px 0 16px;
}

/* ═══════ SEO SUGGESTIONS ═══════ */
.seo-suggestions { padding: 4px 0; }
.seo-sug {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    font-size: 0.84rem;
    line-height: 1.4;
    color: var(--text);
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.seo-sug:last-child { border-bottom: none; }
.seo-sug i { margin-top: 2px; flex-shrink: 0; }
[data-theme="light"] .seo-sug { border-color: rgba(0,0,0,0.04); }

/* ═══════ ? icon pulse for interactivity hint ═══════ */
.sb-tip {
    cursor: help;
    transition: color 0.2s ease, transform 0.2s ease;
}
.sb-tip:hover {
    color: var(--primary, #7c3aed) !important;
    transform: scale(1.3);
}

@media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .stat-cell { padding: 12px 8px; }
    .stat-cell-val { font-size: 1.1rem; }
    .kw-bar { width: 80px; }
    .custom-tooltip { max-width: 260px; font-size: 0.72rem; }
}

/* ═══ WATERMARK DIFF ═══ */
.wm-diff{font-family:var(--font-mono,'Fira Code',monospace);font-size:0.85rem;line-height:1.8;padding:16px;border-radius:12px;background:var(--surface-2,rgba(255,255,255,0.03));white-space:pre-wrap;word-break:break-word;overflow-x:auto;max-height:400px;overflow-y:auto}
.wm-diff .wm-hl{background:rgba(239,68,68,0.25);color:#ff6b6b;border-radius:3px;padding:1px 2px;border-bottom:2px solid #ef4444;cursor:help;position:relative;font-weight:600}
.wm-diff .wm-hl:hover::after{content:attr(data-tip);position:absolute;bottom:calc(100% + 6px);left:50%;transform:translateX(-50%);background:#1a1a2e;color:#fff;padding:4px 10px;border-radius:6px;font-size:0.72rem;white-space:nowrap;z-index:99;box-shadow:0 4px 15px rgba(0,0,0,0.4);pointer-events:none}
.wm-changes-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px;padding:8px 0}
.wm-change-item{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:8px;background:var(--surface-2,rgba(255,255,255,0.03));font-size:0.78rem;font-family:var(--font-mono)}
.wm-change-item .wm-from{color:#ef4444;text-decoration:line-through}
.wm-change-item .wm-arrow{color:var(--text-secondary);font-size:0.7rem}
.wm-change-item .wm-to{color:#22c55e;font-weight:600}
.wm-change-item .wm-pos{color:var(--text-secondary);font-size:0.65rem;margin-left:auto}
.wm-stats-bar{display:flex;gap:6px;margin:12px 0;flex-wrap:wrap}
.wm-stat{padding:4px 10px;border-radius:20px;font-size:0.72rem;font-weight:500;display:flex;align-items:center;gap:4px}
.wm-stat.danger{background:rgba(239,68,68,0.15);color:#ef4444}
.wm-stat.ok{background:rgba(34,197,94,0.15);color:#22c55e}
.wm-stat.info{background:rgba(139,92,246,0.15);color:#a78bfa}

/* ═══ HUMANIZE PIPELINE ═══ */
.hm-pipeline{padding:0}
.hm-phases{display:flex;flex-direction:column;gap:2px}
.hm-phase{border-radius:10px;overflow:hidden;background:var(--surface-2,rgba(255,255,255,0.03));transition:all 0.3s}
.hm-phase.active{background:rgba(139,92,246,0.08);box-shadow:0 0 0 1px rgba(139,92,246,0.2)}
.hm-phase.done{background:rgba(34,197,94,0.05)}
.hm-phase-hdr{display:flex;align-items:center;gap:8px;padding:8px 12px;cursor:default;font-size:0.78rem;font-weight:500}
.hm-phase-hdr i{width:16px;text-align:center;font-size:0.7rem}
.hm-phase-hdr .hm-phase-num{color:var(--text-secondary);font-size:0.65rem;min-width:20px}
.hm-phase-hdr .hm-phase-name{flex:1}
.hm-phase-hdr .hm-phase-status{font-size:0.7rem}
.hm-phase.pending .hm-phase-status{color:var(--text-secondary)}
.hm-phase.active .hm-phase-hdr{color:var(--primary,#a78bfa)}
.hm-phase.active .hm-phase-status{color:var(--primary,#a78bfa)}
.hm-phase.done .hm-phase-hdr{color:#22c55e}
.hm-phase.done .hm-phase-status{color:#22c55e}
.hm-phase-steps{display:none;padding:0 12px 6px 36px}
.hm-phase.active .hm-phase-steps,.hm-phase.done .hm-phase-steps{display:block}
.hm-step{font-size:0.68rem;padding:2px 0;color:var(--text-secondary);display:flex;align-items:center;gap:6px;transition:color 0.2s}
.hm-step.active{color:var(--primary,#a78bfa);font-weight:500}
.hm-step.done{color:#22c55e}
.hm-step i{width:12px;text-align:center;font-size:0.6rem}
.hm-progress-wrap{padding:12px 16px;display:flex;align-items:center;gap:12px}
.hm-progress-bar{flex:1;height:4px;border-radius:4px;background:var(--surface-2,rgba(255,255,255,0.1));overflow:hidden}
.hm-progress-fill{height:100%;border-radius:4px;background:linear-gradient(90deg,var(--primary,#a78bfa),#22c55e);transition:width 0.3s ease;width:0}
.hm-progress-pct{font-size:0.72rem;font-weight:600;color:var(--primary,#a78bfa);min-width:36px;text-align:right}
.hm-elapsed{font-size:0.65rem;color:var(--text-secondary)}

/* ═══ HUMANIZE DIFF ═══ */
.hm-diff{padding:16px;line-height:1.9;font-size:0.88rem}
.hm-diff .hm-del{background:rgba(239,68,68,0.2);color:#ff6b6b;text-decoration:line-through;border-radius:3px;padding:1px 3px}
.hm-diff .hm-ins{background:rgba(34,197,94,0.2);color:#4ade80;border-radius:3px;padding:1px 3px;font-weight:500}
.hm-metrics-compare{display:grid;grid-template-columns:1fr auto 1fr;gap:8px;padding:12px 0;align-items:center}
.hm-mc-col{text-align:center}
.hm-mc-col .hm-mc-val{font-size:1.1rem;font-weight:700}
.hm-mc-col .hm-mc-lbl{font-size:0.65rem;color:var(--text-secondary);margin-top:2px}
.hm-mc-arrow{font-size:1.2rem;color:var(--primary,#a78bfa)}
.hm-mc-delta{font-size:0.7rem;font-weight:600;margin-top:2px}
.hm-mc-delta.good{color:#22c55e}
.hm-mc-delta.bad{color:#ef4444}
.hm-tabs{display:flex;gap:4px;padding:8px 0;border-bottom:1px solid var(--border,rgba(255,255,255,0.08));margin-bottom:12px}
.hm-tab{padding:6px 14px;border-radius:8px;font-size:0.75rem;cursor:pointer;color:var(--text-secondary);transition:all 0.2s;border:none;background:none}
.hm-tab.active{background:var(--primary,#a78bfa);color:#fff}
.hm-tab:hover:not(.active){background:rgba(255,255,255,0.05)}
.hm-tab-content{display:none}
.hm-tab-content.active{display:block}
.hm-stages-summary{display:flex;flex-wrap:wrap;gap:4px;padding:8px 0}
.hm-stage-chip{padding:3px 8px;border-radius:12px;font-size:0.68rem;background:rgba(139,92,246,0.12);color:var(--primary,#a78bfa)}


/* ═══ WATERMARK DIFF ═══ */
.wm-diff{font-family:var(--font-mono,'Fira Code',monospace);font-size:0.85rem;line-height:1.8;padding:16px;border-radius:12px;background:var(--surface-2,rgba(255,255,255,0.03));white-space:pre-wrap;word-break:break-word;overflow-x:auto;max-height:400px;overflow-y:auto}
.wm-diff .wm-hl{background:rgba(239,68,68,0.25);color:#ff6b6b;border-radius:3px;padding:1px 2px;border-bottom:2px solid #ef4444;cursor:help;position:relative;font-weight:600}
.wm-diff .wm-hl:hover::after{content:attr(data-tip);position:absolute;bottom:calc(100% + 6px);left:50%;transform:translateX(-50%);background:#1a1a2e;color:#fff;padding:4px 10px;border-radius:6px;font-size:0.72rem;white-space:nowrap;z-index:99;box-shadow:0 4px 15px rgba(0,0,0,0.4);pointer-events:none}
.wm-changes-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px;padding:8px 0}
.wm-change-item{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:8px;background:var(--surface-2,rgba(255,255,255,0.03));font-size:0.78rem;font-family:var(--font-mono)}
.wm-change-item .wm-from{color:#ef4444;text-decoration:line-through}
.wm-change-item .wm-arrow{color:var(--text-secondary);font-size:0.7rem}
.wm-change-item .wm-to{color:#22c55e;font-weight:600}
.wm-change-item .wm-pos{color:var(--text-secondary);font-size:0.65rem;margin-left:auto}
.wm-stats-bar{display:flex;gap:6px;margin:12px 0;flex-wrap:wrap}
.wm-stat{padding:4px 10px;border-radius:20px;font-size:0.72rem;font-weight:500;display:flex;align-items:center;gap:4px}
.wm-stat.danger{background:rgba(239,68,68,0.15);color:#ef4444}
.wm-stat.ok{background:rgba(34,197,94,0.15);color:#22c55e}
.wm-stat.info{background:rgba(139,92,246,0.15);color:#a78bfa}

/* ═══ HUMANIZE PIPELINE ═══ */
.hm-pipeline{padding:0}
.hm-phases{display:flex;flex-direction:column;gap:2px}
.hm-phase{border-radius:10px;overflow:hidden;background:var(--surface-2,rgba(255,255,255,0.03));transition:all 0.3s}
.hm-phase.active{background:rgba(139,92,246,0.08);box-shadow:0 0 0 1px rgba(139,92,246,0.2)}
.hm-phase.done{background:rgba(34,197,94,0.05)}
.hm-phase-hdr{display:flex;align-items:center;gap:8px;padding:8px 12px;cursor:default;font-size:0.78rem;font-weight:500}
.hm-phase-hdr i{width:16px;text-align:center;font-size:0.7rem}
.hm-phase-hdr .hm-phase-num{color:var(--text-secondary);font-size:0.65rem;min-width:20px}
.hm-phase-hdr .hm-phase-name{flex:1}
.hm-phase-hdr .hm-phase-status{font-size:0.7rem}
.hm-phase.pending .hm-phase-status{color:var(--text-secondary)}
.hm-phase.active .hm-phase-hdr{color:var(--primary,#a78bfa)}
.hm-phase.active .hm-phase-status{color:var(--primary,#a78bfa)}
.hm-phase.done .hm-phase-hdr{color:#22c55e}
.hm-phase.done .hm-phase-status{color:#22c55e}
.hm-phase-steps{display:none;padding:0 12px 6px 36px}
.hm-phase.active .hm-phase-steps,.hm-phase.done .hm-phase-steps{display:block}
.hm-step{font-size:0.68rem;padding:2px 0;color:var(--text-secondary);display:flex;align-items:center;gap:6px;transition:color 0.2s}
.hm-step.active{color:var(--primary,#a78bfa);font-weight:500}
.hm-step.done{color:#22c55e}
.hm-step i{width:12px;text-align:center;font-size:0.6rem}
.hm-progress-wrap{padding:12px 16px;display:flex;align-items:center;gap:12px}
.hm-progress-bar{flex:1;height:4px;border-radius:4px;background:var(--surface-2,rgba(255,255,255,0.1));overflow:hidden}
.hm-progress-fill{height:100%;border-radius:4px;background:linear-gradient(90deg,var(--primary,#a78bfa),#22c55e);transition:width 0.3s ease;width:0}
.hm-progress-pct{font-size:0.72rem;font-weight:600;color:var(--primary,#a78bfa);min-width:36px;text-align:right}
.hm-elapsed{font-size:0.65rem;color:var(--text-secondary)}

/* ═══ HUMANIZE DIFF ═══ */
.hm-diff{padding:16px;line-height:1.9;font-size:0.88rem}
.hm-diff .hm-del{background:rgba(239,68,68,0.2);color:#ff6b6b;text-decoration:line-through;border-radius:3px;padding:1px 3px}
.hm-diff .hm-ins{background:rgba(34,197,94,0.2);color:#4ade80;border-radius:3px;padding:1px 3px;font-weight:500}
.hm-metrics-compare{display:grid;grid-template-columns:1fr auto 1fr;gap:8px;padding:12px 0;align-items:center}
.hm-mc-col{text-align:center}
.hm-mc-col .hm-mc-val{font-size:1.1rem;font-weight:700}
.hm-mc-col .hm-mc-lbl{font-size:0.65rem;color:var(--text-secondary);margin-top:2px}
.hm-mc-arrow{font-size:1.2rem;color:var(--primary,#a78bfa)}
.hm-mc-delta{font-size:0.7rem;font-weight:600;margin-top:2px}
.hm-mc-delta.good{color:#22c55e}
.hm-mc-delta.bad{color:#ef4444}
.hm-tabs{display:flex;gap:4px;padding:8px 0;border-bottom:1px solid var(--border,rgba(255,255,255,0.08));margin-bottom:12px}
.hm-tab{padding:6px 14px;border-radius:8px;font-size:0.75rem;cursor:pointer;color:var(--text-secondary);transition:all 0.2s;border:none;background:none}
.hm-tab.active{background:var(--primary,#a78bfa);color:#fff}
.hm-tab:hover:not(.active){background:rgba(255,255,255,0.05)}
.hm-tab-content{display:none}
.hm-tab-content.active{display:block}
.hm-stages-summary{display:flex;flex-wrap:wrap;gap:4px;padding:8px 0}
.hm-stage-chip{padding:3px 8px;border-radius:12px;font-size:0.68rem;background:rgba(139,92,246,0.12);color:var(--primary,#a78bfa)}


/* ═══ Sidebar TM Badges ═══ */
.sidebar-badge-tm{
  display:inline-flex;
  align-items:center;justify-content:center;
  width:11px;height:11px;min-width:11px;
  margin-left:2px;flex-shrink:0;
  background:linear-gradient(135deg,#7c3aed,#a78bfa);
  border-radius:3px;
  color:#fff;font-size:0.3rem;
  box-shadow:0 0 3px rgba(124,58,237,0.2);
}
.sidebar .sidebar-item{min-width:0}
.sidebar .sidebar-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}
.sidebar.collapsed .sidebar-badge-tm{display:none}
.sidebar-item:hover .sidebar-badge-tm{box-shadow:0 0 6px rgba(124,58,237,0.4)}

/* ═══ Extended Info Section (before API) ═══ */
.tool-extended-info{
  background:var(--bg-card,#1e1e2e);
  border:1px solid var(--border,rgba(255,255,255,0.06));
  border-radius:20px;
  padding:28px 28px 24px;
  margin-top:16px;
  position:relative;
  overflow:hidden;
}
.tool-extended-info::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,#7c3aed,#a78bfa,#c4b5fd,#a78bfa,#7c3aed);
  background-size:200% 100%;
  animation:shimmerBar 4s ease infinite;
}
@keyframes shimmerBar{0%{background-position:200% 0}100%{background-position:-200% 0}}
.tool-ext-header{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.tool-ext-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;flex-shrink:0}
.tool-ext-header h3{margin:0;font-size:1.1rem;color:var(--text,#e0e0e0);font-weight:700}
.tool-ext-subtitle{font-size:0.75rem;color:var(--text-muted,#666);text-transform:uppercase;letter-spacing:1px;font-weight:600}
.tool-ext-desc{
  color:var(--text-secondary,#b0b0c0);
  font-size:0.88rem;line-height:1.7;
  margin:0 0 18px;
  padding-bottom:18px;
  border-bottom:1px solid rgba(255,255,255,0.06);
}
/* Method pills */
.tool-ext-methods{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.ext-method-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;
  background:linear-gradient(135deg,rgba(124,58,237,0.12),rgba(167,139,250,0.08));
  border:1px solid rgba(124,58,237,0.25);
  border-radius:24px;
  font-size:0.8rem;font-weight:600;
  color:#a78bfa;letter-spacing:0.3px;
  transition:all 0.3s;
}
.ext-method-pill:hover{
  background:linear-gradient(135deg,rgba(124,58,237,0.2),rgba(167,139,250,0.15));
  border-color:rgba(124,58,237,0.5);
  box-shadow:0 0 12px rgba(124,58,237,0.2);
  transform:translateY(-1px);
}
.ext-method-pill i{font-size:0.7rem;opacity:0.8}
/* Tip cards */
.tool-ext-tips{display:flex;flex-direction:column;gap:10px}
.ext-tip-card{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 16px;
  background:rgba(255,255,255,0.02);
  border-radius:12px;
  border-left:3px solid var(--accent,#7c3aed);
  transition:background 0.2s;
}
.ext-tip-card:hover{background:rgba(124,58,237,0.06)}
.ext-tip-icon{
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(124,58,237,0.1);
  border-radius:8px;flex-shrink:0;
  color:#a78bfa;font-size:0.8rem;
}
.ext-tip-card span{color:var(--text-secondary,#b0b0c0);font-size:0.84rem;line-height:1.5}

/* Short SEO desc in header */
.tool-desc-seo{color:var(--text-secondary,#a0a0b0);font-size:0.85rem;margin:0;line-height:1.4}

/* Pipeline method badge */
.hm-method-badge{display:inline-block;font-size:0.6rem;font-weight:600;color:#a78bfa;background:rgba(124,58,237,0.12);border:1px solid rgba(124,58,237,0.25);border-radius:10px;padding:2px 8px;margin-left:6px;letter-spacing:0.3px;vertical-align:middle}

/* ═══ Sidebar logo link ═══ */
.sidebar-logo-link{display:flex;align-items:center;gap:8px;padding:8px 12px;text-decoration:none;color:var(--text);border-radius:8px;transition:background 0.2s}
.sidebar-logo-link:hover{background:rgba(124,58,237,0.08)}
.sidebar-logo-icon{font-size:1.2rem;flex-shrink:0}
.sidebar-logo-text{font-weight:700;font-size:0.85rem;white-space:nowrap}
.sidebar.collapsed .sidebar-logo-text{opacity:0;width:0;overflow:hidden}
.sidebar.collapsed .sidebar-logo-link{justify-content:center;padding:8px}
.sidebar-copyright{font-size:0.65rem;color:var(--text-muted);text-align:center;padding:4px 8px}
.sidebar.collapsed .sidebar-copyright .sidebar-label{opacity:0;width:0;overflow:hidden;display:none}

/* ═══ Tool Page Footer ═══ */
.tool-footer{
  margin-top:32px;
  padding:28px 0 20px;
  border-top:1px solid var(--border,rgba(255,255,255,0.06));
}
.tool-footer-inner{display:flex;flex-direction:column;gap:16px;align-items:center;text-align:center}
.tool-footer-brand{display:flex;flex-direction:column;gap:4px;align-items:center}
.tool-footer-logo{font-size:1.1rem;font-weight:700;color:var(--text)}
.tool-footer-copy{font-size:0.75rem;color:var(--text-muted)}
.tool-footer-links{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.tool-footer-links a{font-size:0.8rem;color:var(--text-secondary);text-decoration:none;transition:color 0.2s}
.tool-footer-links a:hover{color:var(--primary,#7c3aed)}
.tool-footer-methods{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.footer-method-pill{
  display:inline-flex;align-items:center;
  padding:5px 14px;
  background:linear-gradient(135deg,rgba(124,58,237,0.08),rgba(167,139,250,0.05));
  border:1px solid rgba(124,58,237,0.2);
  border-radius:20px;
  font-size:0.72rem;font-weight:600;
  color:#a78bfa;text-decoration:none;
  letter-spacing:0.3px;
  transition:all 0.3s;
}
.footer-method-pill:hover{
  background:linear-gradient(135deg,rgba(124,58,237,0.18),rgba(167,139,250,0.12));
  border-color:rgba(124,58,237,0.5);
  box-shadow:0 0 12px rgba(124,58,237,0.15);
  transform:translateY(-1px);color:#c4b5fd;
}


/* ═══ App Topbar Methods Dropdown ═══ */
.app-topbar-dropdown{position:relative;display:inline-flex}
.app-topbar-dropdown-menu{
  display:none;position:absolute;top:100%;right:0;
  background:var(--bg-card,#1e1e2e);border:1px solid var(--border);border-radius:12px;
  padding:8px;min-width:200px;z-index:200;
  box-shadow:0 8px 32px rgba(0,0,0,0.4);
  margin-top:4px;
}
.app-topbar-dropdown.open .app-topbar-dropdown-menu{display:block}
.app-topbar-dropdown-menu a{
  display:flex;align-items:center;gap:10px;
  padding:8px 12px;border-radius:8px;
  color:var(--text-secondary);text-decoration:none;font-size:0.82rem;font-weight:500;
  transition:all 0.15s;white-space:nowrap;
}
.app-topbar-dropdown-menu a:hover{background:rgba(124,58,237,0.08);color:var(--text)}
.app-topbar-dropdown-menu a i{width:16px;text-align:center;font-size:0.8rem}

/* ═══ Nav Methods Dropdown extras ═══ */
.nav-dropdown-methods{min-width:280px;grid-template-columns:1fr !important}
.dropdown-divider{height:1px;background:var(--border);margin:6px 0;grid-column:1/-1}

/* ═══ Footer Methods Strip ═══ */
.footer-methods-strip{
  display:flex;flex-wrap:wrap;gap:8px;justify-content:center;
  padding:20px 0;margin:16px 0 0;
  border-top:1px solid rgba(255,255,255,0.06);
}
.footer-method-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;
  background:linear-gradient(135deg,rgba(124,58,237,0.08),rgba(167,139,250,0.05));
  border:1px solid rgba(124,58,237,0.2);
  border-radius:20px;
  font-size:0.72rem;font-weight:600;
  color:#a78bfa;text-decoration:none;letter-spacing:0.3px;
  transition:all 0.3s;
}
.footer-method-pill i{font-size:0.65rem}
.footer-method-pill:hover{
  background:linear-gradient(135deg,rgba(124,58,237,0.18),rgba(167,139,250,0.12));
  border-color:rgba(124,58,237,0.5);box-shadow:0 0 12px rgba(124,58,237,0.15);
  transform:translateY(-1px);color:#c4b5fd;
}
.footer-copyright{font-size:0.82rem;color:var(--text-muted,#666);text-align:center;margin:12px 0 4px}
.footer-copyright a{color:#a78bfa;text-decoration:none}
.footer-copyright a:hover{text-decoration:underline}
.footer-legal-note{
  font-size:0.7rem;color:var(--text-muted,#555);margin-top:8px;opacity:0.7;text-align:center;
}
.footer-legal-note a{color:#a78bfa;text-decoration:none}
.footer-legal-note a:hover{text-decoration:underline}

/* ═══ Footer tool-page strip ═══ */
.footer-tool-strip{
  border-top:1px solid rgba(255,255,255,0.06);
  background:rgba(15,15,30,0.6);backdrop-filter:blur(10px);
  padding:12px 0;
}
.footer-tool-strip-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.footer-method-pills-row{
  display:flex;flex-wrap:wrap;gap:6px;justify-content:center;
}
.footer-tool-strip .footer-legal-note{margin:0;font-size:0.72rem}

/* ═══ Footer unified on tool pages ═══ */
.footer-unified{width:100%}
.is-tool-page .footer-unified{margin-top:0}

/* ═══ Method Related Grid ═══ */
.method-related-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;
}
.method-related-grid .method-related-card{
  flex-direction:column;align-items:flex-start;gap:8px;
  padding:14px 16px;border-radius:14px;
}
.method-related-grid .method-related-card>div{width:100%}
.method-related-grid .method-related-card>.fa-arrow-right{
  align-self:flex-end;margin-top:4px;
}