:root {
    /* Base Colors - Dark Theme */
    --bg: #09090b;
    --bg-alt: #111114;
    --surface: rgba(255, 255, 255, 0.03);
    --surface-strong: rgba(255, 255, 255, 0.06);
    --surface-ink: #ffffff;
    --text: #a1a1aa;
    --text-strong: #f4f4f5;
    --muted: #71717a;
    --muted-strong: #52525b;
    
    /* Accents & Gradients */
    --accent: #4f8ef7;
    --accent-strong: #3b82f6;
    --accent-secondary: #14B8A6;   /* Teal #14B8A6 — secondary gradient stop */  /* Previous #8b5cf6 Purple — secondary gradient stop */
    --accent-warm: #f59e0b;
    --accent-glow: rgba(79, 142, 247, 0.15);
    
    /* Decoration */
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.12);
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
    --shadow-strong: 0 36px 96px rgba(0, 0, 0, 0.7);
    
    /* Layout Base (Mobile First) */
    --radius-xl: 1rem;
    --radius-lg: 0.75rem;
    --radius-md: 0.5rem;
    --radius-sm: 0.25rem;
}

/* Global box-sizing reset — prevents padding from causing overflow */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    color-scheme: dark;
    scroll-behavior: smooth;
    background-color: var(--bg);
}

img, svg, video, canvas {
    max-width: 100%;
    height: auto;
    display: block;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: "Inter", system-ui, -apple-system, sans-serif;
    background: 
        radial-gradient(circle at 50% -20%, rgba(79, 142, 247, 0.12), transparent 50%),
        radial-gradient(circle at 10% 40%, rgba(139, 92, 246, 0.08), transparent 30%),
        radial-gradient(circle at 90% 80%, rgba(245, 158, 11, 0.05), transparent 30%),
        var(--bg);
    overflow-x: hidden;
}

/* Typography Base (Mobile First) */
h1, h2, h3, h4, .display {
    color: var(--text-strong);
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin: 0;
    font-weight: 800;
    overflow-wrap: break-word;
    word-break: break-word;
}

h1:focus {
    outline: none;
}

p {
    line-height: 1.6;
}

.gradient-text {
    background: linear-gradient(135deg, #fff 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.accent-text {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.eyebrow {
    margin-bottom: 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
}

/* Layout Shell Base (Mobile First) */
.page-shell {
    width: 100%;
    max-width: 100%;
    padding: 2.5rem 1rem;
    margin-inline: auto;
}

.page-card {
    position: relative;
    padding: 1.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: var(--surface);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* Components Base (Mobile First) */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 1.5rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
    border: 1px solid transparent;
    width: 100%;
}

.button-primary {
    background: var(--text-strong);
    color: var(--bg);
}

.button-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(255, 255, 255, 0.2);
}

.button-secondary {
    background: var(--surface);
    color: var(--text-strong);
    border-color: var(--border);
}

.button-secondary:hover {
    background: var(--surface-strong);
    border-color: var(--border-strong);
    transform: translateY(-2px);
}

.button-glow {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.button-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(79, 142, 247, 0.3);
}

/* Cards & Grids Base (Mobile First — single column) */
.panel, .card, .feature-card, .stat-card, .content-card, .code-card, .impact-card, .metric-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    transition: all 0.3s ease;
    overflow: hidden;
    min-width: 0;
}

.panel:hover, .card:hover, .feature-card:hover, .stat-card:hover, .content-card:hover, .code-card:hover, .impact-card:hover, .metric-card:hover {
    border-color: var(--border-strong);
    background: var(--surface-strong);
    transform: translateY(-4px);
}

.feature-grid, .card-grid, .content-grid, .split-grid, .stat-grid, .admin-grid, .trust-grid, .grid, .grid-2, .grid-3 {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: 1fr;
}

/* Prevent grid children from expanding past their track */
.feature-grid > *, .card-grid > *, .content-grid > *, .split-grid > *, .grid > *, .grid-2 > *, .grid-3 > * {
    min-width: 0;
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Hero Section Base (Mobile First) */
.hero {
    position: relative;
    padding: 2.5rem 0;
    text-align: center;
}

.headline {
    font-size: 2rem;
    margin-bottom: 1rem;
    margin-inline: auto;
}

.lede {
    font-size: 1rem;
    margin: 0 auto 2rem;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

/* Mini Visuals Base (Mobile First) */
.proof-strip {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 2.5rem;
}

.proof-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--surface);
    padding: 0.75rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    text-align: center;
}

.proof-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
}

.proof-value {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-strong);
}

/* Dashboard Mockup Base (Mobile First) */
.dashboard-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-strong);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

.summary-score {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--text-strong);
    line-height: 1;
}

.signal-track {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin: 0.5rem 0;
}

.signal-fill {
    height: 100%;
    background: var(--accent);
    border-radius: inherit;
}

.signal-fill.warm { background: var(--accent-warm); }
.signal-fill.cool { background: var(--accent-secondary); }

/* Code Blocks Base (Mobile First) */
pre, .code-sample {
    background: #000;
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.75rem;
    /* Collapse to container, scroll content */
    width: 0;
    min-width: 100%;
}

code {
    color: #e2e8f0;
    word-break: break-all;
    white-space: pre-wrap;
}

/* Lists */
.list-stack {
    list-style: none;
    padding: 0;
    display: grid;
    gap: 1rem;
}

.list-item {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 0.5rem 0;
}

.list-item::before {
    content: "✓";
    color: var(--accent);
    font-weight: 900;
    flex-shrink: 0;
}

/* Form Styles */
input, textarea, select {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.8rem 1rem;
    color: #fff;
    width: 100%;
    transition: all 0.2s ease;
    font: inherit;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--surface-strong);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

/* Generic Section Styles Base (Mobile First) */
.section {
    margin-top: 4rem;
}

.section-intro {
    margin-bottom: 1.5rem;
}

.section-heading {
    margin-bottom: 1.5rem;
}

.pill, .badge, .tag {
    display: inline-flex;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--surface-strong);
    border: 1px solid var(--border);
}

.verified { color: var(--accent); }
.semiverified { color: var(--accent-warm); }
.unverified { color: var(--muted); }

/* Admin Console (Mobile First) */
.console-shell {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 100vh;
}

.console-sidebar {
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
}

.console-nav {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.console-nav a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    color: var(--text);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.85rem;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.console-nav a:hover {
    background: var(--surface);
    color: var(--text-strong);
}

.console-nav a.active {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 12px var(--accent-glow);
}

.console-content {
    padding: 1rem;
}

/* ==========================================================================
   Tablet (min-width: 768px)
   ========================================================================== */
@media (min-width: 768px) {
    :root {
        --radius-xl: 1.5rem;
        --radius-lg: 1.25rem;
        --radius-md: 0.75rem;
        --radius-sm: 0.5rem;
    }

    .page-shell { padding: 4rem 2rem; }
    .page-card { padding: 2.5rem; }
    
    .button { width: auto; }
    
    .hero { padding: 5rem 0; }
    .headline { font-size: 3rem; max-width: 15ch; margin-bottom: 1.5rem; }
    .lede { font-size: 1.2rem; max-width: 50ch; margin: 0 auto 3rem; }
    .hero-actions { flex-direction: row; margin-bottom: 4rem; }
    
    .feature-grid, .card-grid, .content-grid, .split-grid, .stat-grid, .admin-grid, .trust-grid, .grid, .grid-2, .grid-3 {
        gap: 2rem;
    }
    .grid-3, .feature-grid, .card-grid, .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-2, .content-grid, .split-grid, .admin-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-grid { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
    
    .panel, .card, .feature-card, .stat-card, .content-card, .code-card, .impact-card, .metric-card {
        padding: 2rem;
    }
    
    .dashboard-card { padding: 2rem; border-radius: 1.5rem; }
    .summary-score { font-size: 3.5rem; }
    
    .proof-strip { grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
    .proof-item { padding: 1rem 1.5rem; }
    .proof-label { font-size: 0.7rem; }
    .proof-value { font-size: 1.15rem; }
    
    pre, .code-sample { font-size: 0.85rem; padding: 1.5rem; }
    
    .section { margin-top: 6rem; }
    .section-intro { margin-bottom: 3rem; }
    
    .console-shell { grid-template-columns: 250px 1fr; }
    .console-sidebar { border-right: 1px solid var(--border); border-bottom: none; position: sticky; top: 0; height: 100vh; padding: 2rem 1.25rem; }
    .console-nav { flex-direction: column; overflow-x: visible; }
    .console-content { padding: 2.5rem; }
}

/* ==========================================================================
   Desktop (min-width: 1024px)
   ========================================================================== */
@media (min-width: 1024px) {
    :root {
        --radius-xl: 2rem;
    }
    .page-shell { 
        max-width: 82rem; 
        padding: clamp(3rem, 5vw, 6rem) clamp(1.5rem, 4vw, 2.5rem); 
    }
    .page-card { padding: clamp(2rem, 5vw, 4rem); }
    
    .hero { padding: clamp(6rem, 10vw, 10rem) 0; }
    .headline { font-size: clamp(4rem, 7vw, 6rem); }
    .lede { font-size: 1.35rem; }
    .hero-actions { margin-bottom: 5rem; }
    
    .grid-3, .feature-grid, .card-grid, .trust-grid { grid-template-columns: repeat(3, 1fr); }
    
    .feature-grid, .card-grid, .content-grid, .split-grid, .stat-grid, .admin-grid, .trust-grid, .grid, .grid-2, .grid-3 {
        gap: 2.5rem;
    }
    .proof-strip { gap: 2rem; }
    .proof-item { padding: 1rem 2rem; }
    .proof-value { font-size: 1.25rem; }
    
    .summary-score { font-size: 4rem; }
    .dashboard-card { padding: 2rem; border-radius: 2rem; }
    
    pre, .code-sample { font-size: 0.9rem; }
    
    .section { margin-top: 8rem; }
    
    .console-shell { grid-template-columns: 280px 1fr; }
    .console-sidebar { padding: 2.5rem 1.5rem; }
    .console-content { padding: 3rem; }
}

/* ==========================================================================
   Review Cards Styles
   ========================================================================== */
.reviews-preview {
    margin: 3rem auto;
    max-width: 800px;
    position: relative;
    z-index: 10;
}

.review-cascade {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.glass-panel {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.review-card {
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: left;
    width: 100%;
    max-width: 600px;
    animation: slideUpFadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: var(--delay);
    opacity: 0;
    transform: translateY(20px);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.review-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5), 0 0 20px var(--accent-glow);
}

/* Offset alternate cards to make it cascade */
.review-card.cascade-item-1 { margin-right: auto; margin-left: 0; }
.review-card.cascade-item-2 { margin-left: auto; margin-right: 0; }

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

.review-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
    font-size: 1.1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.reviewer-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.reviewer-info strong {
    font-size: 1.1rem;
    color: var(--text-strong);
}

.verified-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    color: var(--accent);
    background: rgba(79, 142, 247, 0.1);
    border: 1px solid rgba(79, 142, 247, 0.2);
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    margin-top: 0.25rem;
    width: fit-content;
}

.semiverified-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    color: var(--accent-warm);
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    margin-top: 0.25rem;
    width: fit-content;
}

.icon {
    width: 12px;
    height: 12px;
}

.star-rating {
    color: var(--accent-warm);
    font-size: 1.25rem;
    letter-spacing: 0.1em;
}

.review-text {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--text);
    margin-bottom: 1rem;
    font-style: italic;
}

.sentiment-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    background: var(--surface-strong);
    border: 1px solid var(--border);
}

.tag.positive {
    color: #4ade80;
    border-color: rgba(74, 222, 128, 0.3);
    background: rgba(74, 222, 128, 0.1);
}

.tag.neutral {
    color: #94a3b8;
    border-color: rgba(148, 163, 184, 0.3);
    background: rgba(148, 163, 184, 0.1);
}

.tag.intent {
    color: var(--accent-secondary);
    border-color: rgba(139, 92, 246, 0.3);
    background: rgba(139, 92, 246, 0.1);
}

@media (min-width: 768px) {
    .review-cascade {
        gap: 2rem;
    }
    .review-card.cascade-item-1 { transform: translateX(-10%); }
    .review-card.cascade-item-2 { transform: translateX(10%); }
    
    .review-card:hover.cascade-item-1 { transform: translateX(-10%) translateY(-5px); }
    .review-card:hover.cascade-item-2 { transform: translateX(10%) translateY(-5px); }
}