:root {
    --stratosphere-blue: #0D47A1;
    --titanium-silver: #ECEFF1;
    --nav-white: #FFFFFF;
    --saf-green: #00E676;
    --dark-bg: #0a192f;
    --accent-blue: #1976D2;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--dark-bg);
    color: var(--nav-white);
    overflow-x: hidden;
}

.navbar {
    background-color: rgba(13, 71, 161, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(236, 239, 241, 0.1);
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--nav-white) !important;
}

.nav-link {
    color: var(--titanium-silver) !important;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 10px;
    transition: color 0.3s;
}

.nav-link:hover, .nav-link.active {
    color: var(--saf-green) !important;
}

.hero-section {
    min-height: 100vh;
    padding-top: 100px;
    background: radial-gradient(circle at center, #1a237e 0%, #0a192f 100%);
    position: relative;
    overflow: hidden;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(236, 239, 241, 0.1);
    color: var(--nav-white);
    transition: transform 0.3s, border-color 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--saf-green);
}

.btn-primary {
    background-color: var(--stratosphere-blue);
    border-color: var(--stratosphere-blue);
}

.btn-outline-primary {
    color: var(--saf-green);
    border-color: var(--saf-green);
}

.btn-outline-primary:hover {
    background-color: var(--saf-green);
    color: var(--dark-bg);
}

.footer {
    background-color: #050b14;
    padding: 60px 0;
    border-top: 1px solid rgba(236, 239, 241, 0.1);
}

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

.text-saf { color: var(--saf-green); }
.text-titanium { color: var(--titanium-silver); }

/* Custom Animations */
@keyframes pulse-radar {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.5); opacity: 0; }
}

.radar-point {
    width: 8px;
    height: 8px;
    background: var(--saf-green);
    border-radius: 50%;
    position: relative;
}

.radar-point::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid var(--saf-green);
    border-radius: 50%;
    animation: pulse-radar 2s infinite;
}