/* ============================
   ClouHostAi — Design System
   ============================ */

/* --- CSS Custom Properties --- */
:root {
    /* Colors - Dark Theme (default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --bg-input: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #f0f0f5;
    --text-secondary: #9494a8;
    --text-muted: #5a5a72;
    --accent-cyan: #06b6d4;
    --accent-purple: #a855f7;
    --accent-pink: #ec4899;
    --accent-green: #22c55e;
    --accent-yellow: #eab308;
    --accent-red: #ef4444;
    --accent-orange: #f97316;
    --gradient-primary: linear-gradient(135deg, #06b6d4, #a855f7);
    --gradient-secondary: linear-gradient(135deg, #a855f7, #ec4899);
    --gradient-warm: linear-gradient(135deg, #f97316, #ef4444);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow-cyan: 0 0 30px rgba(6, 182, 212, 0.15);
    --shadow-glow-purple: 0 0 30px rgba(168, 85, 247, 0.15);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-primary: #f8faff;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --bg-input: rgba(99, 102, 241, 0.04);
    --border: rgba(99, 102, 241, 0.12);
    --border-hover: rgba(99, 102, 241, 0.25);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent-cyan: #0891b2;
    --accent-purple: #7c3aed;
    --accent-pink: #db2777;
    --gradient-primary: linear-gradient(135deg, #0891b2, #7c3aed);
    --gradient-secondary: linear-gradient(135deg, #7c3aed, #db2777);
    --shadow-sm: 0 2px 8px rgba(99, 102, 241, 0.08);
    --shadow-md: 0 8px 32px rgba(99, 102, 241, 0.10);
    --shadow-lg: 0 16px 48px rgba(99, 102, 241, 0.12);
    --shadow-glow-cyan: 0 0 30px rgba(8, 145, 178, 0.12);
    --shadow-glow-purple: 0 0 30px rgba(124, 58, 237, 0.12);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background var(--transition-base), color var(--transition-base);
}

[data-theme="light"] body {
    background: linear-gradient(135deg, #f0f4ff 0%, #fdf2f8 30%, #f0fdf4 60%, #fefce8 100%);
    background-attachment: fixed;
}

/* --- Lively Background & Particles --- */
.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: floatOrb 20s infinite ease-in-out alternate;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: rgba(6, 182, 212, 0.15);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: rgba(168, 85, 247, 0.15);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: rgba(236, 72, 153, 0.15);
    top: 40%;
    left: 60%;
    animation-delay: -10s;
}

[data-theme="light"] .orb-1 {
    background: rgba(8, 145, 178, 0.15);
}

[data-theme="light"] .orb-2 {
    background: rgba(124, 58, 237, 0.15);
}

[data-theme="light"] .orb-3 {
    background: rgba(219, 39, 119, 0.15);
}

@keyframes floatOrb {
    0% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(30px, 50px) scale(1.1);
    }

    100% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* --- Layout --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* --- Glass Card Mixin --- */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow-cyan);
    transform: translateY(-5px);
}

/* --- Gradient Text --- */
.gradient-text {
    background: linear-gradient(270deg, #06b6d4, #a855f7, #ec4899, #06b6d4);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* ============================
   HEADER
   ============================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) 0;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(10, 10, 15, 0.7);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-base), border-color var(--transition-base);
}

[data-theme="light"] .header {
    background: rgba(255, 255, 255, 0.75);
    border-bottom: 1px solid rgba(99, 102, 241, 0.08);
    box-shadow: 0 1px 12px rgba(99, 102, 241, 0.06);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    display: flex;
    transition: transform var(--transition-base);
}

.logo:hover .logo-icon {
    transform: rotate(15deg) scale(1.1);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.logo-highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: rotate(30deg);
}

[data-theme="dark"] .icon-sun {
    display: block;
}

[data-theme="dark"] .icon-moon {
    display: none;
}

[data-theme="light"] .icon-sun {
    display: none;
}

[data-theme="light"] .icon-moon {
    display: block;
}

/* ============================
   HERO
   ============================ */
.hero {
    position: relative;
    z-index: 1;
    padding: 10rem 0 6rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-lg);
    border-radius: var(--radius-full);
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.2);
    color: var(--accent-cyan);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--space-xl);
    animation: fadeInDown 0.8s ease;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-cyan);
    animation: pulse 2s ease-in-out infinite;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-2xl);
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.4);
}

.hero-cta svg {
    transition: transform var(--transition-fast);
}

.hero-cta:hover svg {
    transform: translateX(4px);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xl);
    margin-top: var(--space-3xl);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    font-family: var(--font-mono);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* ============================
   SECTION HEADERS
   ============================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 550px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================
   ANALYZER
   ============================ */
.analyzer {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) 0 var(--space-4xl);
}

.analyzer-card {
    padding: var(--space-2xl);
    box-shadow: var(--shadow-md);
}

.textarea-wrapper {
    margin-bottom: var(--space-lg);
}

.textarea-wrapper textarea {
    display: block;
    width: 100%;
    min-height: 280px;
    padding: var(--space-lg);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.8;
    resize: vertical;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    box-sizing: border-box;
}

.textarea-wrapper textarea::placeholder {
    color: var(--text-muted);
}

.textarea-wrapper textarea:focus {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow-cyan);
    caret-color: var(--accent-pink);
}

.textarea-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-sm);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.text-stats {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

.stat-sep {
    color: var(--border);
}

.textarea-actions {
    display: flex;
    gap: var(--space-sm);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    border: none;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.btn-primary {
    background: var(--gradient-primary);
    background-size: 200% auto;
    color: #fff;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(6, 182, 212, 0.25);
    transition: 0.5s;
}

.btn-primary:hover:not(:disabled) {
    background-position: right center;
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(6, 182, 212, 0.5);
}

.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-analyze {
    width: 100%;
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
    border-radius: var(--radius-md);
}

.btn-loader {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* ============================
   RESULTS
   ============================ */
.results {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) 0 var(--space-4xl);
}

/* Score Hero */
.score-hero {
    display: flex;
    align-items: center;
    gap: var(--space-3xl);
    padding: var(--space-3xl);
    margin-bottom: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
}

.score-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.score-ring-wrap {
    position: relative;
    width: 200px;
    height: 200px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.score-ring-wrap.pulse-danger {
    animation: dangerPulse 2s infinite;
}

@keyframes dangerPulse {
    0% {
        filter: drop-shadow(0 0 10px rgba(239, 68, 68, 0.2));
        transform: scale(1);
    }

    50% {
        filter: drop-shadow(0 0 30px rgba(239, 68, 68, 0.6));
        transform: scale(1.02);
    }

    100% {
        filter: drop-shadow(0 0 10px rgba(239, 68, 68, 0.2));
        transform: scale(1);
    }
}

.score-ring {
    width: 200px;
    height: 200px;
    transform: rotate(-90deg);
}

.ring-bg {
    fill: none;
    stroke: var(--border);
    stroke-width: 10;
}

.ring-progress {
    fill: none;
    stroke: url(#progressGrad);
    stroke-width: 10;
    stroke-linecap: round;
    stroke-dasharray: 553;
    stroke-dashoffset: 553;
    transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.score-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: baseline;
}

.score-number {
    font-size: 3.5rem;
    font-weight: 900;
    font-family: var(--font-mono);
    line-height: 1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-percent {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-left: 2px;
}

.score-info {
    flex: 1;
}

.verdict-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: var(--space-md);
}

.verdict-badge.human {
    background: rgba(34, 197, 94, 0.12);
    color: var(--accent-green);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.verdict-badge.mixed {
    background: rgba(234, 179, 8, 0.12);
    color: var(--accent-yellow);
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.verdict-badge.ai {
    background: rgba(239, 68, 68, 0.12);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.score-heading {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.score-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* SVG Gradient for ring (lives inside the SVG in JS) */

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.metric-card {
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
}

.metric-card.animate-in {
    animation: slideUpFade 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes slideUpFade {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.metric-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.metric-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.metric-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.perplexity-icon {
    background: rgba(6, 182, 212, 0.12);
    color: var(--accent-cyan);
}

.burstiness-icon {
    background: rgba(168, 85, 247, 0.12);
    color: var(--accent-purple);
}

.vocabulary-icon {
    background: rgba(34, 197, 94, 0.12);
    color: var(--accent-green);
}

.repetition-icon {
    background: rgba(249, 115, 22, 0.12);
    color: var(--accent-orange);
}

.aiphrases-icon {
    background: rgba(239, 68, 68, 0.12);
    color: var(--accent-red);
}

.readability-icon {
    background: rgba(234, 179, 8, 0.12);
    color: var(--accent-yellow);
}

.openers-icon {
    background: rgba(99, 102, 241, 0.12);
    color: #6366f1;
}

.contractions-icon {
    background: rgba(236, 72, 153, 0.12);
    color: var(--accent-pink);
}

.specificity-icon {
    background: rgba(20, 184, 166, 0.12);
    color: #14b8a6;
}

.emotion-icon {
    background: rgba(244, 63, 94, 0.12);
    color: #f43f5e;
}

.transition-icon {
    background: rgba(59, 130, 246, 0.12);
    color: #3b82f6;
}

.punct-icon {
    background: rgba(245, 158, 11, 0.12);
    color: #f59e0b;
}

.wordlen-icon {
    background: rgba(16, 185, 129, 0.12);
    color: #10b981;
}

.hedging-icon {
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
}

.listing-icon {
    background: rgba(139, 92, 246, 0.12);
    color: #8b5cf6;
}

.complexity-icon {
    background: rgba(14, 165, 233, 0.12);
    color: #0ea5e9;
}

.coherence-icon {
    background: rgba(236, 72, 153, 0.12);
    color: #ec4899;
}

.metric-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex: 1;
}

/* --- Metric Info Button & Tooltip --- */
.metric-info-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    position: relative;
}

.metric-info-btn:hover {
    background: var(--bg-card-hover);
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    transform: scale(1.1);
}

.metric-info-btn::before,
.metric-info-btn::after {
    position: absolute;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    pointer-events: none;
    z-index: 100;
}

.metric-info-btn::before {
    content: '';
    bottom: calc(100% + 4px);
    right: 50%;
    transform: translateX(50%) translateY(8px);
    border: 6px solid transparent;
    border-top-color: var(--border-hover);
}

.metric-info-btn::after {
    content: attr(data-tooltip);
    bottom: calc(100% + 10px);
    right: -10px;
    transform: translateY(8px);
    width: 280px;
    padding: var(--space-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 400;
    line-height: 1.6;
    text-transform: none;
    letter-spacing: normal;
    text-align: left;
}

.metric-info-btn:hover::before,
.metric-info-btn:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(50%) translateY(0);
}

.metric-info-btn:hover::after {
    transform: translateY(0);
}

.metric-value {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-mono);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.metric-bar-track {
    height: 6px;
    background: var(--bg-input);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--space-md);
}

.metric-bar {
    height: 100%;
    width: 0%;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    background-size: 200% 100%;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.metric-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transform: translateX(-100%);
    animation: barShimmer 2.5s infinite;
}

@keyframes barShimmer {
    100% {
        transform: translateX(100%);
    }
}

[data-metric="perplexity"] .metric-bar {
    background: var(--accent-cyan);
}

[data-metric="burstiness"] .metric-bar {
    background: var(--accent-purple);
}

[data-metric="vocabulary"] .metric-bar {
    background: var(--accent-green);
}

[data-metric="repetition"] .metric-bar {
    background: var(--accent-orange);
}

[data-metric="aiPhrases"] .metric-bar {
    background: var(--accent-red);
}

[data-metric="readability"] .metric-bar {
    background: var(--accent-yellow);
}

[data-metric="sentenceOpeners"] .metric-bar {
    background: #6366f1;
}

[data-metric="contractions"] .metric-bar {
    background: var(--accent-pink);
}

[data-metric="specificity"] .metric-bar {
    background: #14b8a6;
}

[data-metric="emotionalTone"] .metric-bar {
    background: #f43f5e;
}

.metric-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Heatmap */
.heatmap-section {
    padding: var(--space-2xl);
    margin-bottom: var(--space-2xl);
    box-shadow: var(--shadow-sm);
}

.heatmap-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.heatmap-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
}

.heatmap-legend {
    display: flex;
    gap: var(--space-lg);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-dot.human {
    background: var(--accent-green);
}

.legend-dot.mixed {
    background: var(--accent-yellow);
}

.legend-dot.ai {
    background: var(--accent-red);
}

.heatmap-body {
    line-height: 2;
    font-size: 0.95rem;
}

.heatmap-sentence {
    display: inline;
    padding: 2px 4px;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.heatmap-sentence:hover {
    opacity: 0.85;
    transform: scale(1.01);
}

.heatmap-sentence .tooltip {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 600;
    white-space: nowrap;
    z-index: 10;
    pointer-events: none;
    box-shadow: var(--shadow-md);
}

.heatmap-sentence:hover .tooltip {
    display: block;
}

/* Phrases Section */
.phrases-section {
    padding: var(--space-2xl);
    margin-bottom: var(--space-2xl);
    box-shadow: var(--shadow-sm);
}

.phrases-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.phrases-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
}

.phrases-count {
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-weight: 600;
}

.phrases-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.phrase-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
    font-size: 0.8rem;
    font-weight: 500;
}

.phrase-tag .phrase-count {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.7rem;
    background: rgba(239, 68, 68, 0.15);
    padding: 1px 6px;
    border-radius: var(--radius-full);
}

.phrase-tag.phrase-strong {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.4);
    font-weight: 600;
}

/* Detail Section */
.detail-section {
    padding: var(--space-2xl);
    margin-bottom: var(--space-2xl);
    box-shadow: var(--shadow-sm);
}

.detail-section h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: var(--space-xl);
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.detail-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.detail-value {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

/* New Analysis */
.new-analysis {
    text-align: center;
    margin-top: var(--space-2xl);
}

/* ============================
   FEATURES
   ============================ */
.features {
    position: relative;
    z-index: 1;
    padding: var(--space-4xl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    padding: var(--space-2xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md), var(--shadow-glow-cyan);
}

.feature-icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-bottom: var(--space-lg);
    transition: transform var(--transition-base);
}

.feature-card:hover .feature-icon-wrap {
    transform: scale(1.1) rotate(-5deg);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ============================
   HOW IT WORKS
   ============================ */
.how-it-works {
    position: relative;
    z-index: 1;
    padding: var(--space-4xl) 0;
}

.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.step {
    padding: var(--space-2xl);
    text-align: center;
    flex: 1;
    min-width: 220px;
    max-width: 300px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.step:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md), var(--shadow-glow-purple);
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.25rem;
    font-weight: 800;
    font-family: var(--font-mono);
    margin: 0 auto var(--space-lg);
}

.step h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.step p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
}

.step-connector {
    color: var(--text-muted);
    flex-shrink: 0;
}

/* ============================
   FOOTER
   ============================ */
.footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
    text-align: center;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.85rem;
    max-width: 400px;
    margin-top: var(--space-sm);
}

.footer-links {
    display: flex;
    gap: var(--space-xl);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ============================
   ANIMATIONS
   ============================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.5);
    }
}

@keyframes slideInMetric {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.animate-in {
    animation: slideInMetric 0.5s ease both;
}

/* ============================
   CONFIDENCE BADGE & SCORE BADGES
   ============================ */
.score-badges {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.confidence-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.confidence-high {
    background: rgba(34, 197, 94, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.confidence-medium {
    background: rgba(234, 179, 8, 0.1);
    color: var(--accent-yellow);
    border: 1px solid rgba(234, 179, 8, 0.25);
}

.confidence-low {
    background: rgba(148, 163, 184, 0.1);
    color: var(--text-muted);
    border: 1px solid rgba(148, 163, 184, 0.25);
}

/* Human sample button accent */
.btn-human-sample {
    border-color: rgba(34, 197, 94, 0.25);
    color: var(--accent-green);
}

.btn-human-sample:hover {
    border-color: rgba(34, 197, 94, 0.5);
    background: rgba(34, 197, 94, 0.08);
    color: var(--accent-green);
}

/* ============================
   LIGHT THEME ENHANCEMENTS
   ============================ */
[data-theme="light"] .glass-card {
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.06), 0 0 0 1px rgba(99, 102, 241, 0.04);
}

[data-theme="light"] .glass-card:hover {
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.10), 0 0 0 1px rgba(99, 102, 241, 0.08);
}

[data-theme="light"] .hero-badge {
    background: rgba(124, 58, 237, 0.06);
    border-color: rgba(124, 58, 237, 0.18);
    color: var(--accent-purple);
}

[data-theme="light"] .badge-dot {
    background: var(--accent-purple);
}

[data-theme="light"] .btn-primary {
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.25);
}

[data-theme="light"] .btn-primary:hover:not(:disabled) {
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.35);
}

[data-theme="light"] #inputText:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

[data-theme="light"] .feature-card:hover {
    box-shadow: var(--shadow-md), var(--shadow-glow-purple);
}

[data-theme="light"] .metric-card {
    border-top: 3px solid transparent;
}

[data-theme="light"] [data-metric="perplexity"] {
    border-top-color: var(--accent-cyan);
}

[data-theme="light"] [data-metric="burstiness"] {
    border-top-color: var(--accent-purple);
}

[data-theme="light"] [data-metric="vocabulary"] {
    border-top-color: var(--accent-green);
}

[data-theme="light"] [data-metric="repetition"] {
    border-top-color: var(--accent-orange);
}

[data-theme="light"] [data-metric="aiPhrases"] {
    border-top-color: var(--accent-red);
}

[data-theme="light"] [data-metric="readability"] {
    border-top-color: var(--accent-yellow);
}

[data-theme="light"] [data-metric="sentenceOpeners"] {
    border-top-color: #6366f1;
}

[data-theme="light"] [data-metric="contractions"] {
    border-top-color: var(--accent-pink);
}

[data-theme="light"] [data-metric="specificity"] {
    border-top-color: #14b8a6;
}

[data-theme="light"] [data-metric="emotionalTone"] {
    border-top-color: #f43f5e;
}

[data-theme="light"] .hero-cta {
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
}

[data-theme="light"] .hero-cta:hover {
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
}

[data-theme="light"] .score-hero::before {
    background: radial-gradient(circle, rgba(124, 58, 237, 0.06) 0%, transparent 70%);
}

[data-theme="light"] .step:hover {
    box-shadow: var(--shadow-md), var(--shadow-glow-purple);
}

[data-theme="light"] .footer {
    border-top-color: rgba(99, 102, 241, 0.1);
}

/* ============================
   SCROLLBAR
   ============================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }

    .hero {
        padding: 8rem 0 4rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .score-hero {
        flex-direction: column;
        text-align: center;
        padding: var(--space-xl);
        gap: var(--space-xl);
    }

    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .steps {
        flex-direction: column;
    }

    .step-connector {
        transform: rotate(90deg);
    }

    .step {
        max-width: 100%;
    }

    .nav-link {
        display: none;
    }

    .analyzer-card {
        padding: var(--space-lg);
    }

    .textarea-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .heatmap-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .score-ring-wrap {
        width: 160px;
        height: 160px;
    }

    .score-ring {
        width: 160px;
        height: 160px;
    }

    .score-number {
        font-size: 2.5rem;
    }
}

/* ============================
   Tab Bar & Humanizer Styles
   ============================ */

/* Ensure hidden attribute always works */
[hidden] {
    display: none !important;
}

.tool-tabs {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 4px;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.tool-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: 11px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.tool-tab:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.tool-tab.active {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
}

.tool-tab svg {
    flex-shrink: 0;
}

.tab-panel {
    display: none;
    animation: fadeInUp 0.4s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Humanizer Results */
.humanizer-results {
    margin-top: var(--space-lg);
    padding: var(--space-lg);
    animation: fadeInUp 0.5s ease;
}

.humanizer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.humanizer-header h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: 0;
}

.humanizer-actions {
    display: flex;
    gap: var(--space-xs);
}

.humanizer-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.hstat {
    text-align: center;
    padding: var(--space-sm);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
}

.hstat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hstat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.humanizer-output-text {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.8;
    max-height: 500px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

@media (max-width: 640px) {
    .humanizer-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .tool-tabs {
        max-width: 100%;
    }

    .humanizer-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Confirmation Toast */
.toast-confirm {
    position: fixed;
    top: 24px;
    right: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    background: rgba(15, 15, 25, 0.95);
    border: 1px solid #22c55e;
    border-radius: 14px;
    color: #f0f0f5;
    font-size: 0.95rem;
    font-weight: 600;
    box-shadow: 0 8px 32px rgba(34, 197, 94, 0.3);
    z-index: 99999;
    animation: toastSlideIn 0.4s ease forwards;
    pointer-events: none;
}

.toast-confirm svg {
    color: #22c55e;
    flex-shrink: 0;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(60px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================
   URL SCANNER
   ============================ */
.url-scanner {
    margin-bottom: var(--space-md);
}

.url-input-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.url-input-wrap:focus-within {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow-cyan);
}

.url-input-wrap svg {
    flex-shrink: 0;
    color: var(--text-muted);
}

.url-input-wrap input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    padding: var(--space-sm) 0;
}

.url-input-wrap input::placeholder {
    color: var(--text-muted);
}

.btn-url-scan {
    flex-shrink: 0;
    background: var(--gradient-primary) !important;
    color: #fff !important;
    border: none !important;
    padding: var(--space-xs) var(--space-md) !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600;
}

.btn-url-scan:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

.url-status {
    margin-top: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.url-status.loading {
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-cyan);
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.url-status.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.url-status.success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

/* OR Divider */
.or-divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.or-divider::before,
.or-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.or-divider span {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

/* ============================
   FILE UPLOAD BUTTON
   ============================ */
.btn-upload {
    cursor: pointer;
    position: relative;
}

.btn-upload input[type="file"] {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    pointer-events: none;
}

/* ============================
   TONE SELECTOR
   ============================ */
.tone-selector {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.tone-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.tone-label svg {
    color: var(--accent-purple);
}

.tone-dropdown {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    cursor: pointer;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239494a8' stroke-width='2' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.tone-dropdown:focus {
    border-color: var(--accent-purple);
    box-shadow: var(--shadow-glow-purple);
}

.tone-dropdown option {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--space-sm);
}

/* ============================
   SIDE-BY-SIDE COMPARISON
   ============================ */
.comparison-view {
    margin-top: var(--space-lg);
    border-top: 1px solid var(--border);
    padding-top: var(--space-lg);
}

.comparison-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.comparison-header h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.btn-toggle-compare {
    font-size: 0.8rem !important;
    padding: var(--space-xs) var(--space-md) !important;
}

.comparison-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.comparison-panel {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.panel-label {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.original-panel .panel-label {
    background: rgba(239, 68, 68, 0.08);
    color: var(--accent-red);
    border-bottom: 1px solid rgba(239, 68, 68, 0.15);
}

.humanized-panel .panel-label {
    background: rgba(34, 197, 94, 0.08);
    color: var(--accent-green);
    border-bottom: 1px solid rgba(34, 197, 94, 0.15);
}

.panel-content {
    padding: var(--space-md);
    font-size: 0.9rem;
    line-height: 1.8;
    max-height: 400px;
    overflow-y: auto;
    color: var(--text-secondary);
    word-wrap: break-word;
}

.panel-content .diff-removed {
    background: rgba(239, 68, 68, 0.12);
    color: var(--accent-red);
    text-decoration: line-through;
    padding: 1px 3px;
    border-radius: 3px;
}

.panel-content .diff-added {
    background: rgba(34, 197, 94, 0.12);
    color: var(--accent-green);
    padding: 1px 3px;
    border-radius: 3px;
    font-weight: 600;
}

@media (max-width: 768px) {
    .comparison-panels {
        grid-template-columns: 1fr;
    }
}

/* ============================
   EXPORT PDF BUTTON
   ============================ */
.btn-export {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    background: var(--gradient-secondary);
    background-size: 200% auto;
    color: #fff;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.25);
    transition: all 0.4s ease;
}

.btn-export:hover {
    background-position: right center;
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(168, 85, 247, 0.4);
}

.new-analysis {
    text-align: center;
    margin-top: var(--space-2xl);
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ============================
   FOOTER BRANDING
   ============================ */
.footer-branding {
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
}

.footer-branding .logo-highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-branding strong {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.heart-icon {
    display: inline;
    background: var(--gradient-warm);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: heartBeat 1.5s ease-in-out infinite;
}

@keyframes heartBeat {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.15);
    }
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Score badges row */
.score-badges {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.confidence-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.confidence-high {
    background: rgba(34, 197, 94, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.confidence-medium {
    background: rgba(234, 179, 8, 0.1);
    color: var(--accent-yellow);
    border: 1px solid rgba(234, 179, 8, 0.2);
}

.confidence-low {
    background: rgba(249, 115, 22, 0.1);
    color: var(--accent-orange);
    border: 1px solid rgba(249, 115, 22, 0.2);
}