/* ═══════════════════════════════════════════════
   BANANA CHAT — Landing Page Styles
   Design System: Dark + Banana Yellow
   ═══════════════════════════════════════════════ */

/* ─── Tokens ─── */
:root {
    --bg: #06060B;
    --bg-elevated: #0E0E16;
    --surface: #14141E;
    --surface-light: #1C1C2A;
    --border: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.12);
    --text: #F0F0F5;
    --text-secondary: #8E8EA0;
    --text-dim: #55556A;
    --yellow: #FFD60A;
    --yellow-dim: rgba(255,214,10,0.12);
    --purple: #A855F7;
    --blue: #3B82F6;
    --green: #10B981;
    --orange: #F59E0B;
    --pink: #EC4899;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --mono: 'JetBrains Mono', monospace;
}

/* ─── Reset ─── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ─── Noise Texture ─── */
.noise {
    position: fixed; inset: 0; z-index: 9999;
    pointer-events: none;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px;
}

/* ─── Reveal Animation ─── */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─── Nav ─── */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 0 24px;
    transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
    border-bottom: 1px solid transparent;
}
.nav.scrolled {
    background: rgba(6,6,11,0.82);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom-color: var(--border);
}
.nav-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}
.nav-logo {
    display: flex; align-items: center; gap: 8px;
    font-weight: 800; font-size: 18px;
}
.logo-emoji { font-size: 24px; }
.nav-links { display: flex; gap: 32px; }
.nav-links a {
    font-size: 14px; font-weight: 500; color: var(--text-secondary);
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
    display: flex; align-items: center; gap: 6px;
    font-size: 13px; font-weight: 600;
    padding: 8px 16px; border-radius: var(--radius-xs);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all 0.25s;
}
.nav-cta:hover {
    border-color: var(--border-hover);
    color: var(--text);
    background: var(--surface);
}

/* ─── Hero ─── */
.hero {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: space-between;
    padding: 120px 48px 80px;
    max-width: 1300px; margin: 0 auto;
    gap: 60px;
    position: relative;
}
.hero-glow {
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(255,214,10,0.08) 0%, transparent 70%);
    top: 10%; left: -5%;
    pointer-events: none;
    animation: glowPulse 6s ease-in-out infinite;
}
@keyframes glowPulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}
.hero-content { flex: 1; max-width: 580px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 500;
    color: var(--yellow);
    background: var(--yellow-dim);
    padding: 6px 14px; border-radius: 999px;
    margin-bottom: 28px;
    font-family: var(--mono);
}
.badge-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--yellow);
    animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}
.hero-title {
    font-size: clamp(42px, 6vw, 72px);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}
.hero-highlight {
    background: linear-gradient(135deg, var(--yellow), var(--orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 17px; line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 36px;
    max-width: 480px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 26px; border-radius: var(--radius-sm);
    font-weight: 650; font-size: 14px;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
}
.btn-primary {
    background: var(--yellow); color: #000;
    box-shadow: 0 0 0 0 rgba(255,214,10,0);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255,214,10,0.2);
}
.btn-ghost {
    border: 1px solid var(--border); color: var(--text-secondary);
}
.btn-ghost:hover {
    border-color: var(--border-hover); color: var(--text);
    background: var(--surface);
}

/* ─── Phone Mockup ─── */
.hero-phone { flex-shrink: 0; }
.phone-frame {
    width: 280px; height: 580px;
    background: var(--surface);
    border-radius: 40px;
    border: 2px solid var(--border);
    overflow: hidden;
    position: relative;
    box-shadow:
        0 0 0 1px rgba(255,255,255,0.04),
        0 20px 60px rgba(0,0,0,0.5),
        0 0 120px rgba(255,214,10,0.04);
    animation: phoneFloat 5s ease-in-out infinite;
}
@keyframes phoneFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(0.5deg); }
}
.phone-notch {
    width: 120px; height: 28px;
    background: var(--bg);
    border-radius: 0 0 18px 18px;
    margin: 0 auto;
    position: relative; z-index: 2;
}
.phone-screen { padding: 8px 14px; }
.mock-header {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 0 14px; border-bottom: 1px solid var(--border);
}
.mock-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: linear-gradient(135deg, var(--yellow), var(--orange));
}
.mock-name { flex: 1; }
.mock-line {
    height: 8px; border-radius: 4px; background: var(--surface-light); margin-bottom: 4px;
}
.mock-line.w60 { width: 60%; }
.mock-line.w40 { width: 40%; }
.mock-line.dim { opacity: 0.5; }
.mock-icons { display: flex; gap: 8px; }
.mock-icon-circle {
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--surface-light);
}
.mock-messages { padding: 12px 0; display: flex; flex-direction: column; gap: 8px; }
.mock-msg { display: flex; flex-direction: column; }
.mock-msg.me { align-items: flex-end; }
.mock-msg.other { align-items: flex-start; }
.mock-bubble {
    padding: 8px 12px; border-radius: 14px;
    font-size: 11px; max-width: 200px; line-height: 1.4;
}
.mock-bubble.me-b {
    background: var(--yellow); color: #000;
    border-bottom-right-radius: 4px;
}
.mock-bubble.other-b {
    background: var(--surface-light); color: var(--text);
    border-bottom-left-radius: 4px;
}
.mock-time {
    font-size: 9px; color: var(--text-dim); margin-top: 2px;
    padding: 0 4px;
}
.mock-input {
    display: flex; align-items: center; gap: 8px;
    background: var(--surface-light);
    border-radius: 20px; padding: 8px 12px; margin-top: 8px;
}
.mock-input-plus {
    width: 24px; height: 24px; border-radius: 50%;
    background: var(--yellow); color: #000;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-weight: 700; flex-shrink: 0;
}
.mock-input-field { flex: 1; font-size: 11px; color: var(--text-dim); }
.mock-input-mic { font-size: 14px; }

/* ─── Stats ─── */
.stats {
    padding: 60px 48px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-elevated);
}
.stats-grid {
    max-width: 900px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 24px; text-align: center;
}
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
    font-size: 48px; font-weight: 900;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--yellow), var(--orange));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-suffix {
    font-size: 32px; font-weight: 900;
    background: linear-gradient(135deg, var(--yellow), var(--orange));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-label { font-size: 14px; color: var(--text-dim); font-weight: 500; }

/* ─── Sections ─── */
.section-header {
    text-align: center; margin-bottom: 56px;
}
.section-tag {
    display: inline-block;
    font-size: 12px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.12em; color: var(--yellow);
    padding: 6px 14px; border-radius: 999px;
    border: 1px solid var(--yellow-dim);
    margin-bottom: 20px;
    font-family: var(--mono);
}
.section-title {
    font-size: clamp(30px, 4vw, 48px);
    font-weight: 800; line-height: 1.15;
    letter-spacing: -0.02em;
}
.section-sub {
    font-size: 16px; color: var(--text-secondary);
    margin-top: 14px;
}
.text-gradient {
    background: linear-gradient(135deg, var(--yellow), var(--orange));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ─── Bento Grid ─── */
.features { padding: 100px 48px; }
.bento {
    max-width: 1100px; margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.bento-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative; overflow: hidden;
}
.bento-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--yellow);
    opacity: 0;
    transition: opacity 0.3s;
}
.bento-card[data-accent="purple"]::before { background: var(--purple); }
.bento-card[data-accent="blue"]::before { background: var(--blue); }
.bento-card[data-accent="green"]::before { background: var(--green); }
.bento-card[data-accent="orange"]::before { background: var(--orange); }
.bento-card[data-accent="pink"]::before { background: var(--pink); }
.bento-card:hover::before { opacity: 1; }
.bento-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.bento-large { grid-column: span 2; }
.bento-wide { grid-column: span 2; }
.card-icon {
    font-size: 28px; margin-bottom: 14px;
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    background: var(--surface-light);
    border-radius: 12px;
}
.bento-card h3 {
    font-size: 17px; font-weight: 700; margin-bottom: 8px;
}
.bento-card p {
    font-size: 14px; color: var(--text-secondary); line-height: 1.6;
}
.card-tags {
    display: flex; gap: 6px; margin-top: 14px; flex-wrap: wrap;
}
.card-tags span {
    font-size: 11px; font-weight: 600;
    padding: 3px 10px; border-radius: 999px;
    background: var(--surface-light);
    color: var(--text-dim);
    font-family: var(--mono);
}

/* ─── Premium Tiers ─── */
.premium {
    padding: 100px 48px;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
}
.tiers-grid {
    max-width: 1100px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.tier-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    position: relative;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.tier-card:hover {
    border-color: var(--tier-color, var(--border-hover));
    transform: translateY(-4px);
    box-shadow: 0 0 40px color-mix(in srgb, var(--tier-color, var(--yellow)) 12%, transparent);
}
.tier-popular {
    border-color: rgba(245,158,11,0.3);
    background: linear-gradient(180deg, rgba(245,158,11,0.06) 0%, var(--surface) 40%);
}
.tier-pop-tag {
    position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
    font-size: 11px; font-weight: 700;
    padding: 3px 14px; border-radius: 999px;
    background: var(--orange); color: #000;
    white-space: nowrap;
}
.tier-badge {
    display: inline-block;
    font-size: 14px; font-weight: 800;
    padding: 6px 18px; border-radius: 999px;
    color: #fff; margin-bottom: 18px;
}
.tier-price {
    font-size: 36px; font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 22px;
}
.tier-price span {
    font-size: 14px; font-weight: 500; color: var(--text-dim);
}
.tier-features { text-align: left; }
.tier-features li {
    font-size: 13px; color: var(--text-secondary);
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
}
.tier-features li:last-child { border: none; }
.tier-subscribe-btn {
    display: block;
    margin-top: 20px; padding: 12px 20px;
    border-radius: 10px;
    background: var(--tier-color, var(--yellow));
    color: #000; font-size: 14px; font-weight: 700;
    text-decoration: none; text-align: center;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    letter-spacing: 0.01em;
}
.tier-subscribe-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 24px color-mix(in srgb, var(--tier-color, var(--yellow)) 35%, transparent);
    filter: brightness(1.1);
}

/* ─── Tech Stack ─── */
.stack { padding: 100px 48px; }
.stack-grid {
    max-width: 900px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}
.stack-item {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding: 24px 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all 0.25s;
}
.stack-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}
.stack-icon { font-size: 28px; }
.stack-item span {
    font-size: 12px; font-weight: 600; color: var(--text-secondary);
    text-align: center;
}

/* ─── Developer (Premium) ─── */
.developer {
    padding: 100px 48px;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
}
.dev-card-premium {
    max-width: 800px; margin: 0 auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 48px;
    position: relative; overflow: hidden;
}
.dev-card-glow {
    position: absolute; top: -80px; right: -80px;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(255,214,10,0.08) 0%, transparent 70%);
    pointer-events: none;
    animation: glowPulse 6s ease-in-out infinite;
}
.dev-header {
    display: flex; align-items: center; gap: 24px;
    margin-bottom: 24px;
}
.dev-avatar-ring {
    flex-shrink: 0;
    width: 100px; height: 100px;
    border-radius: 50%;
    padding: 3px;
    background: linear-gradient(135deg, var(--yellow), var(--orange), var(--purple));
    animation: ringRotate 4s linear infinite;
}
@keyframes ringRotate {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}
.dev-avatar {
    width: 100%; height: 100%; border-radius: 50%;
    background: linear-gradient(135deg, var(--yellow), var(--orange));
    display: flex; align-items: center; justify-content: center;
    font-size: 32px; font-weight: 900; color: #000;
}
.dev-identity h3 {
    font-size: 24px; font-weight: 800; margin-bottom: 6px;
}
.dev-role {
    font-size: 14px; color: var(--yellow); font-weight: 600;
    display: flex; align-items: center; gap: 6px;
    margin-bottom: 4px;
}
.dev-location {
    font-size: 13px; color: var(--text-dim); font-weight: 500;
    display: flex; align-items: center; gap: 6px;
}
.dev-bio {
    font-size: 14px; color: var(--text-secondary); line-height: 1.75;
    margin-bottom: 28px;
}
.dev-stats-row {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 16px; margin-bottom: 28px;
    padding: 20px; border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
}
.dev-stat { text-align: center; }
.dev-stat-num {
    display: block; font-size: 22px; font-weight: 800;
    background: linear-gradient(135deg, var(--yellow), var(--orange));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.dev-stat-label {
    font-size: 11px; color: var(--text-dim); font-weight: 500;
    text-transform: uppercase; letter-spacing: 0.05em;
}
.dev-socials {
    display: flex; gap: 10px; flex-wrap: wrap;
    margin-bottom: 28px;
}
.dev-social-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 18px; border-radius: var(--radius-xs);
    border: 1px solid var(--border);
    font-size: 13px; font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
}
.dev-social-btn i { width: 16px; height: 16px; }
.dev-social-btn:hover { transform: translateY(-2px); }
.dev-social-btn[data-platform="github"]:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,0.06); }
.dev-social-btn[data-platform="linkedin"]:hover { border-color: #0A66C2; color: #0A66C2; background: rgba(10,102,194,0.1); }
.dev-social-btn[data-platform="twitter"]:hover { border-color: #1DA1F2; color: #1DA1F2; background: rgba(29,161,242,0.1); }
.dev-social-btn[data-platform="grokipedia"]:hover { border-color: var(--green); color: var(--green); background: rgba(16,185,129,0.1); }
.dev-social-btn[data-platform="website"]:hover { border-color: var(--yellow); color: var(--yellow); background: var(--yellow-dim); }
.dev-cta-row {
    display: flex; gap: 12px; flex-wrap: wrap;
}
.btn-sm { padding: 10px 20px; font-size: 13px; }
.oss-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ─── Footer ─── */
.footer {
    padding: 40px 48px;
    border-top: 1px solid var(--border);
}
.footer-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.footer-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; }
.footer-copy {
    font-size: 13px; color: var(--text-dim);
}
.footer-copy a { color: var(--yellow); }
.footer-copy a:hover { text-decoration: underline; }
.footer-version {
    font-size: 12px; color: var(--text-dim);
    font-family: var(--mono);
}
.footer-top {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%; padding-bottom: 20px;
    border-bottom: 1px solid var(--border); margin-bottom: 20px;
}
.footer-nav { display: flex; gap: 24px; }
.footer-nav a { font-size: 13px; color: var(--text-dim); transition: color 0.2s; }
.footer-nav a:hover { color: var(--text); }
.footer-bottom { display: flex; flex-direction: column; align-items: center; gap: 6px; }

/* ─── Lucide Icons ─── */
.icon-xs { width: 14px; height: 14px; }
.icon-sm { width: 18px; height: 18px; }
.icon-lg { width: 28px; height: 28px; }
.stack-lucide { width: 28px; height: 28px; color: var(--yellow); }

/* ─── Hero Chips ─── */
.hero-chips { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px; }
.chip {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 12px; font-weight: 500; color: var(--text-dim);
    padding: 5px 12px; border-radius: 999px;
    border: 1px solid var(--border); background: var(--surface);
}
.hero-glow-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(168,85,247,0.06) 0%, transparent 70%);
    top: 30%; right: 5%; left: auto;
    animation-delay: 3s;
}

/* ─── Why Section ─── */
.why { padding: 100px 48px; }
.why-grid {
    max-width: 1100px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.why-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 32px;
    transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
}
.why-card:hover { border-color: var(--border-hover); transform: translateY(-3px); }
.why-icon {
    width: 52px; height: 52px; border-radius: 14px;
    background: var(--yellow-dim); color: var(--yellow);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 18px;
}
.why-icon-purple { background: rgba(168,85,247,0.12); color: var(--purple); }
.why-icon-green { background: rgba(16,185,129,0.12); color: var(--green); }
.why-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.why-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }

/* ─── Card Icon Colors ─── */
.card-icon-wrap {
    width: 44px; height: 44px; border-radius: 12px;
    background: var(--yellow-dim); color: var(--yellow);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 14px;
}
.card-icon-wrap i { width: 22px; height: 22px; }
.ciwp { background: rgba(168,85,247,0.12); color: var(--purple); }
.ciwb { background: rgba(59,130,246,0.12); color: var(--blue); }
.ciwg { background: rgba(16,185,129,0.12); color: var(--green); }
.ciwo { background: rgba(245,158,11,0.12); color: var(--orange); }
.ciwpk { background: rgba(236,72,153,0.12); color: var(--pink); }

/* ─── Tier Icons ─── */
.tier-icon { margin-bottom: 12px; }
.tier-icon i { width: 32px; height: 32px; }
.tier-features li {
    display: flex; align-items: center; gap: 8px;
}
.tier-features li .icon-xs { color: var(--green); flex-shrink: 0; }

/* ─── OSS CTA ─── */
.oss-cta { padding: 60px 48px; }
.oss-card {
    max-width: 800px; margin: 0 auto; text-align: center;
    background: linear-gradient(135deg, rgba(255,214,10,0.06), rgba(168,85,247,0.06));
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 52px 40px;
}
.oss-icon { margin-bottom: 16px; color: var(--yellow); }
.oss-icon i { width: 40px; height: 40px; }
.oss-card h2 { font-size: 28px; font-weight: 800; margin-bottom: 10px; }
.oss-card p { font-size: 15px; color: var(--text-secondary); margin-bottom: 24px; max-width: 500px; margin-left: auto; margin-right: auto; }

/* ─── Cursor Glow ─── */
.cursor-glow {
    position: fixed; width: 600px; height: 600px;
    border-radius: 50%; pointer-events: none; z-index: 1;
    background: radial-gradient(circle, rgba(255,214,10,0.04) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}
.cursor-glow.active { opacity: 1; }

/* ─── Mobile Menu ─── */
.mobile-toggle {
    display: none; background: none; border: none; cursor: pointer;
    width: 32px; height: 24px; position: relative; z-index: 200;
}
.mobile-toggle span {
    display: block; width: 100%; height: 2px;
    background: var(--text); border-radius: 2px;
    position: absolute; left: 0;
    transition: all 0.3s;
}
.mobile-toggle span:nth-child(1) { top: 2px; }
.mobile-toggle span:nth-child(2) { top: 11px; }
.mobile-toggle span:nth-child(3) { top: 20px; }
.mobile-toggle.active span:nth-child(1) { top: 11px; transform: rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { top: 11px; transform: rotate(-45deg); }
.mobile-menu {
    display: none; flex-direction: column; gap: 0;
    background: rgba(6,6,11,0.96); backdrop-filter: blur(20px);
    position: absolute; top: 100%; left: 0; right: 0;
    padding: 8px 24px 20px; border-bottom: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
    padding: 14px 0; font-size: 15px; font-weight: 500;
    color: var(--text-secondary); border-bottom: 1px solid var(--border);
    transition: color 0.2s;
}
.mobile-menu a:last-child { border: none; }
.mobile-menu a:hover { color: var(--yellow); }

/* ─── Animated Messages ─── */
.anim-msg {
    opacity: 0; transform: translateY(12px);
    animation: msgAppear 0.5s ease forwards;
    animation-delay: calc(var(--d) * 0.4s + 1s);
}
@keyframes msgAppear {
    to { opacity: 1; transform: translateY(0); }
}

/* ─── App Preview Marquee ─── */
.app-preview { padding: 80px 0; overflow: hidden; }
.preview-marquee { position: relative; width: 100%; overflow: hidden; }
.marquee-track {
    display: flex; gap: 20px;
    animation: marquee 20s linear infinite;
    width: max-content;
}
@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.preview-screen {
    width: 160px; height: 280px; flex-shrink: 0;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 20px; overflow: hidden;
    position: relative; padding: 12px;
    transition: border-color 0.3s, transform 0.3s;
}
.preview-screen:hover { border-color: var(--yellow); transform: scale(1.04); }
.preview-screen.accent-purple:hover { border-color: var(--purple); }
.preview-screen.accent-blue:hover { border-color: var(--blue); }
.preview-screen.accent-green:hover { border-color: var(--green); }
.preview-screen.accent-orange:hover { border-color: var(--orange); }
.preview-screen.accent-pink:hover { border-color: var(--pink); }
.preview-screen > span {
    position: absolute; bottom: 10px; left: 0; right: 0;
    text-align: center; font-size: 10px; font-weight: 600;
    color: var(--text-dim); text-transform: uppercase;
    letter-spacing: 0.08em; font-family: var(--mono);
}
.ps-bar { height: 6px; width: 40%; margin: 0 auto 12px; border-radius: 3px; background: var(--surface-light); }
.ps-content { display: flex; flex-direction: column; gap: 8px; }
.ps-circle { width: 40px; height: 40px; border-radius: 50%; background: var(--yellow-dim); margin: 0 auto; }
.ps-lines { display: flex; flex-direction: column; gap: 6px; }
.ps-line { height: 6px; border-radius: 3px; background: var(--surface-light); }
.ps-line.w50 { width: 50%; } .ps-line.w60 { width: 60%; }
.ps-line.w70 { width: 70%; } .ps-line.w80 { width: 80%; } .ps-line.w90 { width: 90%; }
.ps-chat { display: flex; flex-direction: column; gap: 8px; padding-top: 8px; }
.ps-bubble { height: 20px; border-radius: 10px; background: var(--surface-light); }
.ps-bubble.left { width: 70%; align-self: flex-start; }
.ps-bubble.right { width: 60%; align-self: flex-end; background: var(--yellow-dim); }
.ps-bubble.short { width: 45%; }
.ps-story { width: 100%; height: 180px; border-radius: 12px; background: linear-gradient(135deg, var(--purple), var(--blue)); opacity: 0.3; }
.ps-avatar-row { display: flex; gap: 6px; justify-content: center; }
.ps-mini-av { width: 24px; height: 24px; border-radius: 50%; background: var(--surface-light); }
.ps-grid-block { width: 100%; height: 120px; border-radius: 8px; background: var(--surface-light); }

/* ─── Responsive: all device classes ─── */

/* Ultrawide (1440+) */
@media (min-width: 1440px) {
    .hero { max-width: 1400px; gap: 80px; }
    .phone-frame { width: 300px; height: 620px; }
    .bento { max-width: 1200px; }
    .tiers-grid { max-width: 1200px; }
}

/* Laptop / small desktop (1024–1439) */
@media (max-width: 1439px) {
    .hero { padding: 120px 40px 80px; }
}

/* Tablet landscape (768–1023) */
@media (max-width: 1023px) {
    .bento { grid-template-columns: repeat(2, 1fr); }
    .bento-large, .bento-wide { grid-column: span 2; }
    .tiers-grid { grid-template-columns: repeat(2, 1fr); }
    .stack-grid { grid-template-columns: repeat(3, 1fr); }
    .hero { padding: 100px 32px 60px; gap: 40px; }
    .phone-frame { width: 250px; height: 520px; }
    .features, .premium, .stack, .developer { padding: 80px 32px; }
    .stats { padding: 48px 32px; }
}

/* Tablet portrait (600–767) */
@media (max-width: 767px) {
    .hero {
        flex-direction: column; text-align: center;
        padding: 100px 24px 48px; gap: 32px;
        min-height: auto;
    }
    .hero-content { max-width: 100%; }
    .hero-sub { max-width: 100%; margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-phone { order: -1; }
    .phone-frame { width: 220px; height: 460px; }
    .phone-notch { width: 100px; height: 24px; }
    .mock-bubble { font-size: 10px; max-width: 170px; }

    .nav-links { display: none; }
    .nav-cta { display: none; }
    .mobile-toggle { display: block; }
    .nav-inner { height: 56px; }

    .bento { grid-template-columns: 1fr; }
    .bento-large, .bento-wide { grid-column: span 1; }
    .tiers-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .stat-num { font-size: 38px; }
    .stat-suffix { font-size: 26px; }
    .stack-grid { grid-template-columns: repeat(3, 1fr); }
    .dev-card-premium { padding: 28px; }
    .dev-header { flex-direction: column; text-align: center; }
    .dev-avatar-ring { width: 80px; height: 80px; }
    .dev-avatar { font-size: 26px; }
    .dev-role, .dev-location { justify-content: center; }
    .dev-bio { text-align: center; }
    .dev-stats-row { grid-template-columns: repeat(2, 1fr); }
    .dev-socials { justify-content: center; }
    .dev-cta-row { justify-content: center; }
    .features, .premium, .stack, .developer { padding: 64px 20px; }
    .stats { padding: 40px 20px; }
    .footer { padding: 32px 20px; }
    .section-header { margin-bottom: 40px; }

    /* Touch-friendly tap targets */
    .btn { padding: 14px 24px; min-height: 48px; }
    .nav-cta { min-height: 40px; }
    .tier-card { padding: 24px; }
}

/* Phone (480–599) */
@media (max-width: 599px) {
    .hero-title { margin-bottom: 18px; }
    .hero-sub { font-size: 15px; margin-bottom: 28px; }
    .hero-badge { font-size: 11px; padding: 5px 12px; }
    .hero-actions { flex-direction: column; align-items: center; width: 100%; }
    .hero-actions .btn { width: 100%; justify-content: center; }

    .bento-card { padding: 22px; }
    .bento-card h3 { font-size: 16px; }
    .bento-card p { font-size: 13px; }
    .card-icon { width: 42px; height: 42px; font-size: 24px; }

    .stack-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stack-item { padding: 18px 8px; }
    .stack-icon { font-size: 24px; }
    .stack-item span { font-size: 11px; }

    .tier-price { font-size: 30px; }
}

/* Small phone (380–479) */
@media (max-width: 479px) {
    .phone-frame { width: 200px; height: 420px; border-radius: 32px; }
    .phone-notch { width: 90px; height: 22px; border-radius: 0 0 14px 14px; }
    .mock-avatar { width: 28px; height: 28px; }
    .mock-icon-circle { width: 22px; height: 22px; }
    .mock-bubble { font-size: 9px; padding: 6px 10px; max-width: 150px; }
    .mock-input { padding: 6px 10px; }

    .stat-num { font-size: 32px; }
    .stat-suffix { font-size: 22px; }
    .stat-label { font-size: 12px; }

    .dev-card-premium { padding: 22px; }
    .dev-identity h3 { font-size: 18px; }
    .dev-bio { font-size: 13px; }
    .dev-social-btn { font-size: 12px; padding: 8px 14px; }
}

/* Tiny screens (under 380px) */
@media (max-width: 379px) {
    .hero { padding: 90px 16px 40px; }
    .features, .premium, .stack, .developer { padding: 52px 16px; }
    .stats { padding: 32px 16px; }
    .footer { padding: 24px 16px; }
    .nav { padding: 0 12px; }
    .phone-frame { width: 180px; height: 380px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .tiers-grid { max-width: 100%; }
    .section-title { font-size: clamp(24px, 6vw, 36px); }
    .logo-text { font-size: 16px; }
}

/* Landscape phones */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        flex-direction: row; min-height: auto;
        padding: 80px 32px 40px; text-align: left;
    }
    .hero-phone { order: 0; }
    .hero-actions { justify-content: flex-start; }
    .phone-frame { width: 160px; height: 340px; border-radius: 24px; }
    .phone-notch { width: 70px; height: 18px; }
    .mock-bubble { font-size: 8px; max-width: 120px; }
}

/* Safe area for notched devices */
@supports (padding: env(safe-area-inset-top)) {
    .nav { padding-top: env(safe-area-inset-top); }
    .footer { padding-bottom: env(safe-area-inset-bottom); }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .reveal { transition: none; opacity: 1; transform: none; }
    .phone-frame { animation: none; }
    .hero-glow { animation: none; }
    .badge-dot { animation: none; }
    html { scroll-behavior: auto; }
}