:root {
    --bg-gradient: linear-gradient(135deg, #0f172a, #1e293b, #0f172a);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-glow: 0 0 20px rgba(59, 130, 246, 0.6);
}

body {
    margin: 0;
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: 1px;
    text-transform: uppercase;
    background: linear-gradient(to right, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.3s ease;
}

.logo:hover {
    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.6));
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
    background: var(--glass-bg);
    box-shadow: var(--accent-glow);
}

main.onchip-main {
    flex: 1;
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: var(--glass-shadow);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.lead {
    font-size: 1.3rem;
    color: var(--text-primary);
}

footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    margin-top: auto;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr;
    }
}