:root {
    --vacuum-silver: #E0E0E0;
    --refraction-blue: #0288D1;
    --molten-red: #D32F2F;
    --light-white: rgba(255, 255, 255, 0.6);
    --deep-navy: #0a192f;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
}

body {
    background-color: var(--deep-navy);
    color: var(--vacuum-silver);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    overflow-x: hidden;
}

.mono-font {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
}

.navbar {
    background: rgba(10, 25, 47, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

.navbar-brand {
    font-weight: 700;
    color: var(--refraction-blue) !important;
    letter-spacing: 1px;
}

.nav-link {
    color: var(--vacuum-silver) !important;
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--refraction-blue) !important;
}

.hero-section {
    padding: 100px 0;
    background: radial-gradient(circle at center, #112240 0%, #0a192f 100%);
    position: relative;
    overflow: hidden;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    padding: 30px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(2, 136, 209, 0.2);
}

.text-refraction {
    color: var(--refraction-blue);
}

.text-molten {
    color: var(--molten-red);
}

.footer {
    padding: 50px 0;
    border-top: 1px solid var(--glass-border);
    margin-top: 50px;
}

/* Animations */
@keyframes refraction-glow {
    0% { text-shadow: 0 0 5px var(--refraction-blue); }
    50% { text-shadow: 0 0 20px var(--refraction-blue); }
    100% { text-shadow: 0 0 5px var(--refraction-blue); }
}

.glow-text {
    animation: refraction-glow 3s infinite;
}

.formula-box {
    background: #000;
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid var(--refraction-blue);
    margin: 20px 0;
}