/* ========================================
   GPT AI Clips — Neocities Site Styles
   ======================================== */

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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --text-primary: #eeeef0;
    --text-secondary: #9898a6;
    --text-tertiary: #5c5c6e;
    --accent-purple: #8b5cf6;
    --accent-cyan: #06b6d4;
    --accent-pink: #ec4899;
    --gradient-main: linear-gradient(135deg, #8b5cf6, #06b6d4);
    --gradient-text: linear-gradient(135deg, #a78bfa, #22d3ee);
    --gradient-glow: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(6,182,212,0.15));
    --border-subtle: rgba(255,255,255,0.06);
    --border-accent: rgba(139,92,246,0.3);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px rgba(139,92,246,0.15);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: ui-monospace, 'Cascadia Code', 'Fira Code', monospace;
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

a {
    color: inherit;
    text-decoration: none;
}

img, iframe {
    display: block;
    max-width: 100%;
}

/* --- Skip Link --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: var(--accent-purple);
    color: #fff;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    z-index: 9999;
    font-size: 14px;
    transition: top var(--transition-fast);
}
.skip-link:focus {
    top: 16px;
}

/* --- Ambient Background --- */
.ambient-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}
.ambient-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
}
.blob-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139,92,246,0.3), transparent 70%);
    top: -200px;
    right: -100px;
    animation: float1 20s ease-in-out infinite;
}
.blob-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6,182,212,0.25), transparent 70%);
    bottom: -150px;
    left: -100px;
    animation: float2 25s ease-in-out infinite;
}
.blob-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236,72,153,0.2), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float3 18s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-80px, 60px) scale(1.1); }
    66% { transform: translate(40px, -30px) scale(0.95); }
}
@keyframes float2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(60px, -80px) scale(1.05); }
    66% { transform: translate(-40px, 40px) scale(0.9); }
}
@keyframes float3 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.2); }
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(10,10,15,0.8);
    border-bottom: 1px solid var(--border-subtle);
    transition: background var(--transition-base);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.02em;
    transition: opacity var(--transition-fast);
}
.logo:hover { opacity: 0.8; }

.logo-icon {
    display: flex;
    align-items: center;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 400;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
}
.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
}
.nav-external {
    color: var(--accent-cyan);
}

.btn-subscribe {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    background: #ff0000;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast), transform var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.btn-subscribe:hover {
    background: #cc0000;
    transform: translateY(-1px);
}
.btn-subscribe svg {
    flex-shrink: 0;
}

/* --- Mobile Menu --- */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 110;
}
.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}
.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(10,10,15,0.95);
    backdrop-filter: blur(20px);
    z-index: 105;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}
.mobile-menu.active {
    opacity: 1;
    pointer-events: auto;
}
.mobile-link {
    font-size: 24px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}
.mobile-link:hover { color: var(--text-primary); }
.mobile-sub { margin-top: 16px; font-size: 16px; }

/* --- Hero --- */
.hero {
    position: relative;
    z-index: 1;
    padding: 160px 24px 80px;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(139,92,246,0.1);
    border: 1px solid var(--border-accent);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 500;
    color: var(--accent-purple);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 32px;
    animation: fadeInUp 0.8s ease-out;
}

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

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

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

.hero-subtitle {
    font-size: 18px;
    font-weight: 300;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 56px;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: var(--gradient-main);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(139,92,246,0.3);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(139,92,246,0.4);
}
.btn-large {
    padding: 18px 36px;
    font-size: 17px;
    border-radius: var(--radius-lg);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), border-color var(--transition-fast);
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.15);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 500;
    color: var(--accent-cyan);
    background: transparent;
    border: 1px solid var(--accent-cyan);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), color var(--transition-fast);
}
.btn-outline:hover {
    background: rgba(6,182,212,0.1);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.02em;
    font-family: var(--font-mono);
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 12px;
    font-weight: 400;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 4px;
}

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

/* --- Videos Section --- */
.videos-section {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 300;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.video-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    animation: fadeInUp 0.6s ease-out both;
}
.video-card:nth-child(2) { animation-delay: 0.1s; }
.video-card:nth-child(3) { animation-delay: 0.2s; }
.video-card:nth-child(4) { animation-delay: 0.3s; }

.video-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-glow);
}

.video-embed {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 */
    background: #000;
}
.video-embed iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.video-info {
    padding: 20px 24px 24px;
}

.video-tag {
    display: inline-block;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-cyan);
    background: rgba(6,182,212,0.1);
    border-radius: 100px;
    margin-bottom: 12px;
}

.video-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
}

.video-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.video-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.meta-date {
    font-size: 12px;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

.watch-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-purple);
    transition: color var(--transition-fast);
}
.watch-link:hover {
    color: var(--accent-cyan);
}

.load-more-wrap {
    text-align: center;
    margin-top: 48px;
}

/* --- CTA Section --- */
.cta-section {
    position: relative;
    z-index: 1;
    padding: 80px 24px;
}

.cta-inner {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    padding: 56px 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-glow);
    position: relative;
    overflow: hidden;
}
.cta-inner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-glow);
    pointer-events: none;
}

.cta-icon {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: rgba(139,92,246,0.1);
    border-radius: 50%;
    color: var(--accent-purple);
    margin-bottom: 24px;
}

.cta-title {
    font-size: clamp(24px, 4vw, 32px);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    position: relative;
}

.cta-text {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
    position: relative;
}

.cta-inner .btn-primary {
    position: relative;
}

/* --- About Section --- */
.about-section {
    position: relative;
    z-index: 1;
    padding: 0 24px 80px;
}

.about-inner {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: start;
}

.about-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}
.about-text p a {
    color: var(--accent-cyan);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.about-text p a:hover {
    color: var(--accent-purple);
}

.about-links {
    display: flex;
    gap: 16px;
    margin-top: 24px;
}

.about-link-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), background var(--transition-fast);
}
.about-link-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
}
.about-link-icon {
    font-size: 24px;
}
.about-link-label {
    font-size: 15px;
    font-weight: 600;
}
.about-link-desc {
    font-size: 12px;
    color: var(--text-tertiary);
}

.about-neocities {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.neocities-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.neo-label {
    font-size: 11px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.neo-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-cyan);
    transition: opacity var(--transition-fast);
}
.neo-link:hover { opacity: 0.8; }

.neo-desc {
    font-size: 13px;
    color: var(--text-tertiary);
    line-height: 1.5;
}

/* --- Footer --- */
.site-footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border-subtle);
    padding: 48px 24px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.footer-brand {
    text-align: center;
}

.footer-tagline {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-top: 4px;
}

.footer-links {
    display: flex;
    gap: 24px;
}
.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}
.footer-links a:hover {
    color: var(--accent-cyan);
}

.footer-bottom {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 12px;
    color: var(--text-tertiary);
}

.footer-indie {
    color: var(--accent-purple);
}

/* --- Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: flex; }

    .hero {
        padding: 120px 20px 60px;
    }

    .hero-subtitle { font-size: 16px; }

    .hero-stats { gap: 20px; }
    .stat-number { font-size: 22px; }

    .video-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .cta-inner {
        padding: 40px 24px;
    }

    .about-inner {
        grid-template-columns: 1fr;
    }

    .about-links {
        flex-direction: column;
    }

    .hero-actions {
        flex-direction: column;
    }
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title { font-size: 32px; }
    .video-info { padding: 16px; }
    .video-title { font-size: 16px; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .stat-divider { width: 40px; height: 1px; }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .ambient-blob { animation: none !important; }
    html { scroll-behavior: auto; }
}