:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #0ea5e9;
    --accent: #22d3ee;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --success: #10b981;
    --warning: #f59e0b;
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Navigation */
nav {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
}

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

.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo img { height: 40px; }
.logo span { font-size: 1.4rem; font-weight: 700; color: var(--text); }

.nav-links { display: flex; gap: 30px; list-style: none; }
.nav-links a { color: var(--text-muted); text-decoration: none; transition: color 0.3s; }
.nav-links a:hover { color: var(--accent); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: 8px; font-weight: 600;
    text-decoration: none; transition: all 0.3s; cursor: pointer; border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white; font-size: 1.1rem;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 40px rgba(99, 102, 241, 0.4); }

.btn-secondary {
    background: transparent; border: 2px solid var(--primary);
    color: var(--primary); padding: 12px 24px;
}
.btn-secondary:hover { background: var(--primary); color: white; }

.btn-copy {
    background: var(--dark); border: 1px solid var(--primary);
    color: var(--accent); padding: 8px 16px; font-size: 0.9rem;
}
.btn-copy:hover { background: var(--primary); color: white; }
.btn-copy.copied { background: var(--success); border-color: var(--success); }

/* Hero Section */
.hero {
    padding: 20px 0; text-align: center;
    background: radial-gradient(ellipse at top, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
}

.hero h1 { font-size: 3rem; margin-bottom: 20px; line-height: 1.2; }
.hero h1 span { background: linear-gradient(135deg, var(--accent), var(--secondary)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { font-size: 1.25rem; color: var(--text-muted); max-width: 700px; margin: 0 auto 10px; }

.hero-buttons { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }

.beta-badge {
    display: inline-block; background: var(--warning); color: var(--dark);
    padding: 4px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: 700; margin-left: 10px;
}

/* Video Preview */
.video-preview {
    margin: 20px auto 60px; max-width: 800px; border-radius: 16px; overflow: hidden;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5); border: 1px solid rgba(99, 102, 241, 0.3);
}
.video-preview iframe { width: 100%; aspect-ratio: 16/9; border: none; }

/* Features */
.features { padding: 20px 0; }
.features h2 { text-align: center; font-size: 2.2rem; margin-bottom: 12px; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }

.feature-card {
    background: rgba(30, 41, 59, 0.6); border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 16px; padding: 30px; transition: all 0.3s;
}
.feature-card:hover { transform: translateY(-5px); border-color: var(--primary); }
.feature-card .icon { font-size: 2.5rem; margin-bottom: 15px; }
.feature-card h3 { font-size: 1.3rem; margin-bottom: 10px; color: var(--accent); }
.feature-card p { color: var(--text-muted); }

/* Setup Steps */
.setup-section { padding: 20px 0; }
.setup-section h2 { text-align: center; font-size: 2.2rem; margin-bottom: 12px; }

.step { display: flex; gap: 10px; margin-bottom: 15px; align-items: center; }
.step:nth-child(even) { flex-direction: row-reverse; }
.step-content { flex: 1; }
.step-number { font-size: 3rem; font-weight: 800; color: var(--primary); opacity: 0.5; }
.step-content h3 { font-size: 1.5rem; margin-bottom: 10px; }
.step-content p { color: var(--text-muted); }
.step-image { flex: 1; }
.step-image img { width: 100%; border-radius: 12px; box-shadow: 0 15px 50px rgba(0,0,0,0.4); border: 1px solid rgba(99,102,241,0.2); }

/* Playlists */
.playlists { padding: 20px 0; }
.playlists h2 { text-align: center; font-size: 2.2rem; margin-bottom: 5px; }
.playlists > p { text-align: center; color: var(--text-muted); margin-bottom: 12px; max-width: 600px; margin-left: auto; margin-right: auto; }

.playlist-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 25px; }

.playlist-card {
    background: rgba(30, 41, 59, 0.6); border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 12px; padding: 25px; display: flex; justify-content: space-between; align-items: center;
}
.playlist-info h3 { font-size: 1.2rem; color: var(--accent); margin-bottom: 5px; }
.playlist-url { font-family: monospace; font-size: 0.85rem; color: var(--text-muted); word-break: break-all; }

/* Info Box */
.info-box {
    background: rgba(14, 165, 233, 0.1); border: 1px solid var(--secondary);
    border-radius: 12px; padding: 25px; margin: 10px 0;
}
.info-box.warning { background: rgba(245, 158, 11, 0.1); border-color: var(--warning); }
.info-box h4 { color: var(--accent); margin-bottom: 10px; }
.info-box p { color: var(--text-muted); }

/* Code Block */
.code-block {
    background: var(--dark); border: 1px solid rgba(99,102,241,0.3);
    border-radius: 8px; padding: 20px; margin: 20px 0; position: relative;
    font-family: 'Consolas', monospace; font-size: 0.9rem; overflow-x: auto;
}
.code-block .copy-btn { position: absolute; top: 10px; right: 10px; }

/* Footer */
footer {
    background: rgba(15, 23, 42, 0.9); border-top: 1px solid rgba(99, 102, 241, 0.2);
    padding: 10px 0; text-align: center; margin-top: 20px;
}
footer p { color: var(--text-muted); }
footer a { color: var(--accent); text-decoration: none; }

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .step { flex-direction: column !important; }
    .nav-links { gap: 15px; font-size: 0.9rem; }
    .playlist-card { flex-direction: column; gap: 15px; text-align: center; }
}