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

:root {
    --primary: #6366F1;
    --primary-hover: #4f46e5;
    --secondary: #818CF8;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --light: #f8fafc;
    --text: #334155;
    --text-light: #64748b;
    --border: #e2e8f0;
    --code-bg: #1e1e2e;
    --code-text: #d4d4d4;
    --code-keyword: #569cd6;
    --code-function: #dcdcaa;
    --code-string: #ce9178;
    --code-tag: #569cd6;
    --code-comment: #6a9955;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--light);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 20px;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-actions {
    display: flex;
    gap: 16px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    display: inline-block;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(129, 140, 248, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.badge {
    background: rgba(99, 102, 241, 0.2);
    color: var(--secondary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, white 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--secondary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
}

/* Code Editor */
.code-editor {
    background: var(--code-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    margin-bottom: 30px;
}

.editor-header {
    background: #252531;
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.editor-tabs {
    display: flex;
    gap: 8px;
}

.tab {
    padding: 6px 12px;
    border-radius: 6px 6px 0 0;
    font-size: 13px;
    color: var(--text-light);
    background: #1e1e2e;
}

.tab.active {
    background: var(--code-bg);
    color: white;
}

.editor-controls {
    display: flex;
    gap: 6px;
}

.control-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #4b4b5a;
}

.control-dot:first-child { background: #ff5f56; }
.control-dot:nth-child(2) { background: #ffbd2e; }
.control-dot:last-child { background: #27c93f; }

.editor-content {
    padding: 16px;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: var(--code-text);
    overflow-x: auto;
}

.code-line {
    margin-bottom: 4px;
}

.keyword { color: var(--code-keyword); }
.function { color: var(--code-function); }
.string { color: var(--code-string); }
.tag { color: var(--code-tag); }
.comment { color: var(--code-comment); }

/* Preview Window */
.preview-window {
    background: #1e1e2e;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.preview-header {
    background: #252531;
    padding: 10px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #333;
}

.preview-title {
    font-size: 13px;
    color: var(--text-light);
}

.preview-time {
    font-size: 13px;
    color: var(--secondary);
}

.preview-content {
    padding: 20px;
}

.preview-video {
    background: #0f0f1a;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/9;
}

.video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e1e2e 0%, #252531 100%);
    position: relative;
}

.video-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(0, 0, 0, 0.7);
    padding: 12px 20px;
    border-radius: 30px;
    backdrop-filter: blur(10px);
}

.play-icon {
    font-size: 24px;
    color: white;
    cursor: pointer;
}

.progress-bar {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    overflow: hidden;
}

.progress {
    width: 30%;
    height: 100%;
    background: var(--primary);
    border-radius: 2px;
}

.video-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.video-text {
    font-size: 48px;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.video-box {
    width: 100px;
    height: 100px;
    background: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.1);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Showcase Section */
.showcase {
    padding: 80px 0;
    background: var(--light);
}

.showcase-header {
    text-align: center;
    margin-bottom: 60px;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.showcase-item {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
}

.showcase-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}

.showcase-preview {
    padding: 20px;
    display: flex;
    justify-content: center;
}

.showcase-video {
    width: 100%;
    aspect-ratio: 16/9;
    background: #f0f0f0;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.showcase-info {
    padding: 20px;
    text-align: center;
}

.showcase-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.showcase-info p {
    color: var(--text-light);
    font-size: 14px;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: var(--primary);
    color: white;
    text-align: center;
}

.cta .container {
    max-width: 700px;
}

.cta-content h2 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.cta .btn-primary {
    background: white;
    color: var(--primary);
}

.cta .btn-primary:hover {
    background: #f0f0f0;
    color: var(--primary);
}

.cta .btn-outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

.cta .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    color: white;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 20px;
    margin-bottom: 12px;
}

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

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: white;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.social-links a {
    color: var(--text-light);
    text-decoration: none;
}

.social-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero h1 {
        font-size: 40px;
    }

    .hero p {
        margin: 0 auto 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .nav-links {
        display: none;
    }

    .code-editor {
        margin-bottom: 20px;
    }

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

    .cta-content h2 {
        font-size: 32px;
    }

    .cta-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 32px;
    }

    .btn-lg {
        padding: 12px 20px;
        font-size: 14px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}