:root {
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #0f3460;
    --bright-accent: #00d9ff;
    --text: #e0e0e0;
    --dark-text: #8a8a8a;
    --terminal-bg: #0a0a0f;
    --card-bg: rgba(255, 255, 255, 0.03);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--primary);
    color: var(--text);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(to bottom, var(--secondary), var(--primary));
    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(0, 217, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(15, 52, 96, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--bright-accent), #00fff2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: bold;
}

.hero .tagline {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--text);
}

.features {
    padding: 80px 0;
    background-color: var(--secondary);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    font-size: 2.5rem;
    color: var(--bright-accent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: linear-gradient(135deg, var(--card-bg), rgba(0, 217, 255, 0.05));
    padding: 30px;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 217, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 217, 255, 0.2);
    border-color: rgba(0, 217, 255, 0.4);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--bright-accent);
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
    color: var(--text);
    position: relative;
}

.feature-card p {
    color: var(--dark-text);
    line-height: 1.7;
    position: relative;
}

.install {
    padding: 80px 0;
    background-color: var(--primary);
    text-align: center;
}

.install p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--text);
}

.install-command {
    background-color: var(--terminal-bg);
    padding: 25px;
    border-radius: 12px;
    max-width: 600px;
    margin: 30px auto;
    border: 1px solid rgba(0, 217, 255, 0.3);
}

.install-command code {
    color: var(--bright-accent);
    font-family: 'Courier New', monospace;
    font-size: 1.3rem;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    font-size: 1.1rem;
    margin-top: 20px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--bright-accent), #0099ff);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.4);
}

.demo-section {
    padding: 80px 0;
    background-color: var(--secondary);
    text-align: center;
}

.demo-container {
    background-color: var(--terminal-bg);
    border-radius: 12px;
    padding: 20px;
    max-width: 900px;
    margin: 40px auto 0;
    box-shadow: 0 20px 60px rgba(0, 217, 255, 0.2);
    border: 1px solid rgba(0, 217, 255, 0.3);
    overflow: hidden;
}

.terminal-bar {
    background-color: #1a1a1a;
    padding: 12px;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    display: flex;
    align-items: center;
    margin: -20px -20px 20px;
}

.terminal-button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 8px;
}

.terminal-button.close {
    background-color: #ff5f56;
}

.terminal-button.minimize {
    background-color: #ffbd2e;
}

.terminal-button.maximize {
    background-color: #27c93f;
}

.terminal-title {
    color: var(--dark-text);
    font-size: 0.9rem;
    flex: 1;
    text-align: center;
    font-family: 'Courier New', monospace;
}

.demo-content {
    min-height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--dark-text);
}

.demo-content video {
    width: 100%;
    border-radius: 4px;
}

.placeholder-video {
    width: 100%;
    padding: 60px;
    text-align: center;
    font-size: 1.1rem;
    background: linear-gradient(45deg, rgba(0, 217, 255, 0.05), rgba(15, 52, 96, 0.05));
    border-radius: 8px;
}

footer {
    background-color: var(--terminal-bg);
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid rgba(0, 217, 255, 0.1);
}

.footer-content {
    color: var(--dark-text);
}

.footer-links {
    margin-top: 20px;
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--bright-accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #00fff2;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .tagline {
        font-size: 1.1rem;
    }

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