:root {
    --dark-bg: #0a0a0a;
    --darker-bg: #050505;
    --card-bg: #1a1a1a;
    --accent: #4361ee;
    --accent-hover: #3a56d4;
    --text-light: #e9ecef;
    --text-muted: #adb5bd;
}

body {
    margin: 0;
    background: linear-gradient(135deg, var(--dark-bg), var(--darker-bg));
    color: var(--text-light);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

.science-page {
    min-height: 100vh;
    padding: 6rem 5% 4rem;
    background: radial-gradient(circle at top right, rgba(67, 97, 238, 0.16), transparent 32%);
}

.page-shell {
    max-width: 1200px;
    margin: 0 auto;
}

.science-hero {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2.5rem;
}

.science-hero-centered {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    margin-top: 2.75rem;
    padding-top: 0.75rem;
}

.science-hero-centered .science-title {
    margin-top: 0.25rem;
}

.science-hero-centered .science-subtitle {
    margin: 0 auto;
}

.science-hero-accent {
    background: rgba(67, 97, 238, 0.08);
    border: 1px solid rgba(67, 97, 238, 0.25);
    border-radius: 20px;
    padding: 2.5rem 1.5rem;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 1rem;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    background: rgba(67, 97, 238, 0.15);
    color: var(--accent);
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.science-title {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
    margin-bottom: 1rem;
}

.science-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 700px;
}

.science-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.science-hero-card,
.page-card {
    background: rgba(26, 26, 26, 0.92);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    box-shadow: 0 18px 40px rgba(0,0,0,0.24);
}

.science-hero-card {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000000;
    border: 1px solid #7a7a7a;
}

.science-hero-media {
    width: 100%;
    max-width: 420px;
    height: auto;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    border-radius: 16px;
    background: #000000;
}

.placeholder-media {
    min-height: 260px;
    border-radius: 16px;
    border: 1px dashed rgba(255,255,255,0.2);
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.16), rgba(255,255,255,0.04));
    display: grid;
    place-items: center;
    color: var(--text-muted);
    font-size: 1rem;
    text-align: center;
    padding: 1.5rem;
}

.page-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.page-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.page-card h3 {
    margin-bottom: 0.8rem;
    color: var(--text-light);
}

.page-card p,
.page-card ul {
    color: var(--text-muted);
}

.page-card ul {
    padding-left: 1.1rem;
    display: grid;
    gap: 0.4rem;
}

.science-direction-grid {
    align-items: stretch;
}

.science-direction-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.8rem;
}

.science-direction-list li {
    position: relative;
    padding-left: 1.2rem;
    color: var(--text-muted);
}

.science-direction-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 0.45rem;
    height: 0.45rem;
    border-radius: 50%;
    background: var(--accent);
}

.page-card .btn {
    align-self: flex-start;
    margin-top: 0.25rem;
}

.page-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.page-nav a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
    background: rgba(255,255,255,0.04);
    transition: all 0.25s ease;
}

.page-nav a:hover,
.page-nav a.active {
    color: var(--text-light);
    background: rgba(67, 97, 238, 0.16);
}

@media (max-width: 900px) {
    .science-hero,
    .page-grid {
        grid-template-columns: 1fr;
    }
}