/* Navbar */
.navbar {
    background-color: var(--midnight-blue);
    padding: 20px 0;
    border-bottom: 2px solid var(--neon-yellow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    font-size: 1.5rem;
    color: var(--neon-yellow);
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--white);
}

.nav-links a:hover {
    color: var(--neon-yellow);
}

/* Hero Section */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at center, #1a222a 0%, var(--midnight-blue) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(45deg, var(--neon-yellow) 0, var(--neon-yellow) 1px, transparent 1px, transparent 50px);
    opacity: 0.05;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1;
    margin-bottom: 20px;
}

.hero .highlight {
    color: var(--neon-yellow);
    display: block;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #a0a0a0;
}

/* Info Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.card {
    background: #151b23;
    padding: 40px;
    border-radius: 20px;
    border-bottom: 4px solid var(--neon-yellow);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    background: #1c2530;
}

.card h3 {
    margin-bottom: 15px;
    color: var(--neon-yellow);
}

.card p {
    font-size: 0.95rem;
    color: #ccc;
}

/* Footer */
footer {
    padding: 60px 0;
    background: #05070a;
    border-top: 1px solid #1a222a;
    text-align: center;
}

.footer-disclaimer {
    font-size: 0.75rem;
    color: #666;
    max-width: 600px;
    margin: 20px auto;
}

/* Illustrations */
.lab-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    fill: var(--teal);
}