:root {
    --bg-color: #0d0d0f;
    --surface-color: rgba(255, 255, 255, 0.03);
    --surface-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f7f2e8;
    --text-secondary: #8b949e;
    --accent: #00FFCC;
    --accent-glow: rgba(0, 255, 204, 0.2);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 4rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--surface-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.primary-btn {
    background: var(--text-primary);
    color: var(--bg-color);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.2s ease;
}

.primary-btn:hover {
    transform: translateY(-2px);
    background: #fff;
}

.primary-btn.lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.secondary-btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--surface-border);
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.secondary-btn:hover {
    background: var(--surface-color);
    border-color: rgba(255, 255, 255, 0.2);
}

.hero {
    display: flex;
    min-height: calc(100vh - 80px);
    align-items: center;
    padding: 0 4rem;
    position: relative;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
}

h1 {
    font-size: 5rem;
    line-height: 1.1;
    font-weight: 600;
    letter-spacing: -0.04em;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, #8b949e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 500px;
}

.cta-group {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.glass-orb {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 0 40px rgba(255,255,255,0.05), 0 20px 40px rgba(0,0,0,0.5);
    animation: float 6s ease-in-out infinite;
    z-index: 2;
}

.glow {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    filter: blur(40px);
    z-index: 1;
    animation: pulse 4s ease-in-out infinite alternate;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 4rem;
    background: #000;
}

.feature-card {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    padding: 3rem 2rem;
    border-radius: 16px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

@keyframes pulse {
    0% { opacity: 0.5; transform: scale(0.95); }
    100% { opacity: 0.8; transform: scale(1.05); }
}

@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 4rem 2rem;
    }
    
    h1 { font-size: 3.5rem; }
    .cta-group { justify-content: center; flex-direction: column; }
    .hero-visual { display: none; }
    .navbar { padding: 1.5rem 2rem; }
    .features { padding: 2rem; }
}