:root {
    --bg-color: #0f172a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --fb-color: #1877f2;
    --portal-color: #14b8a6;
    --text-color: #ffffff;
    --accent-color: #6366f1; /* Paars/blauw voor knoppen */
}

body {
    margin: 0;
    padding: 40px 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
}

h1 {
    margin-bottom: 1rem;
    font-size: 2.5rem;
    text-shadow: 0 4px 10px rgba(0,0,0,0.3);
    letter-spacing: 1px;
    text-align: center;
}

p.subtitle {
    color: #94a3b8;
    margin-bottom: 3rem;
    font-size: 1.1rem;
    text-align: center;
}

.site-logo {
    display: block;
    width: min(220px, 60vw);
    height: auto;
    margin: -1.5rem auto 2rem;
    object-fit: contain;
}

/* Grid Layout */
.school-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    width: 90%;
    max-width: 1200px;
    padding: 20px;
    margin-bottom: 4rem;
}

/* De Geanimeerde Kaart */
.school-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    animation: float 6s ease-in-out infinite;
}

/* Animatie delays */
.school-card:nth-child(1) { animation-delay: 0s; }
.school-card:nth-child(2) { animation-delay: 0.75s; }
.school-card:nth-child(3) { animation-delay: 1.5s; }
.school-card:nth-child(4) { animation-delay: 2.25s; }

.school-card:hover {
    transform: translateY(-15px) scale(1.03);
    border-color: var(--fb-color);
    box-shadow: 0 20px 40px rgba(24, 119, 242, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

.school-icon {
    margin-bottom: 1.2rem;
    transition: transform 0.4s ease, color 0.4s ease;
    width: 100%;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.school-icon img {
    display: block;
    width: 100%;
    height: 100%;
    max-width: 180px;
    object-fit: contain;
}

.school-card:hover .school-icon {
    transform: scale(1.1) rotate(5deg);
    color: #fff;
}

.school-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: #ffffff;
}

.school-details {
    font-size: 0.9rem;
    color: #94a3b8;
    margin-bottom: 1.5rem;
    text-align: center;
    line-height: 1.4;
}

.school-details i {
    margin-right: 5px;
    color: #64748b;
}

.school-details a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.school-details a:hover,
.school-details a:focus-visible {
    color: #ffffff;
    text-decoration: underline;
}

.card-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: auto;
}

.fb-badge {
    background: var(--fb-color);
    color: white;
    width: 42px;
    height: 42px;
    padding: 0;
    border-radius: 50%;
    font-size: 1.15rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    opacity: 0.7;
    transition: opacity 0.3s ease, box-shadow 0.3s ease;
    margin-top: auto;
    justify-content: center;
}

.portal-badge {
    background: var(--portal-color);
    color: white;
    width: 42px;
    height: 42px;
    padding: 0;
    border-radius: 50%;
    font-size: 1.15rem;
    display: inline-flex;
    align-items: center;
    opacity: 0.7;
    transition: opacity 0.3s ease, box-shadow 0.3s ease;
    margin-top: auto;
    justify-content: center;
}

.school-card:hover .fb-badge {
    opacity: 1;
    box-shadow: 0 4px 15px rgba(24, 119, 242, 0.5);
}

.school-card:hover .portal-badge {
    opacity: 1;
    box-shadow: 0 4px 15px rgba(20, 184, 166, 0.5);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.7rem;
    margin: 0 auto 3rem;
}

.site-nav a {
    color: #cbd5e1;
    border: 1px solid var(--card-border);
    border-radius: 999px;
    padding: 0.55rem 1rem;
    text-decoration: none;
    transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: #ffffff;
    background: rgba(20, 184, 166, 0.2);
    border-color: var(--portal-color);
}

.content-sections {
    width: min(90%, 1200px);
    margin: 0 auto;
}

.history-section,
.news-section {
    margin: 0 auto 5rem;
    scroll-margin-top: 1.5rem;
}

.section-heading {
    max-width: 700px;
    margin: 0 auto 2.5rem;
    text-align: center;
}

.section-heading h2 {
    margin: 0 0 0.6rem;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.section-heading p:not(.section-kicker) {
    color: #94a3b8;
    line-height: 1.6;
}

.section-kicker {
    margin: 0 0 0.5rem;
    color: #5eead4;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.history-timeline {
    max-width: 850px;
    margin: 0 auto;
    border-left: 2px solid rgba(94, 234, 212, 0.4);
    padding-left: 2rem;
}

.history-item {
    position: relative;
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--card-border);
    border-radius: 14px;
}

.history-item::before {
    content: '';
    position: absolute;
    left: -2.45rem;
    top: 1.8rem;
    width: 0.75rem;
    height: 0.75rem;
    background: #fbbf24;
    border: 3px solid #0f172a;
    border-radius: 50%;
}

.history-year {
    color: #5eead4;
    font-size: 1.15rem;
    font-weight: 700;
}

.history-item h3,
.news-card h3 {
    margin: 0 0 0.5rem;
    color: #ffffff;
}

.history-item p,
.news-card p {
    margin: 0 0 0.8rem;
    color: #94a3b8;
    line-height: 1.6;
}

.history-item a,
.news-card a {
    color: #5eead4;
    text-decoration: none;
    font-size: 0.9rem;
}

.history-item a:hover,
.news-card a:hover {
    color: #ffffff;
    text-decoration: underline;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.2rem;
}

.news-card {
    display: flex;
    flex-direction: column;
    min-height: 190px;
    padding: 1.4rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--card-border);
    border-radius: 14px;
}

.news-card h3 {
    font-size: 1.1rem;
}

.news-card a {
    margin-top: auto;
}

.news-badge {
    align-self: flex-start;
    margin-bottom: 0.8rem;
    color: #fbbf24;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.news-card-featured {
    grid-column: span 2;
    flex-direction: row;
    align-items: center;
    gap: 1.25rem;
    background: linear-gradient(120deg, rgba(20, 184, 166, 0.18), rgba(255, 255, 255, 0.06));
}

.news-card-featured img {
    width: 72px;
    height: 72px;
    object-fit: contain;
    flex: 0 0 auto;
}

.reveal-section {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 650px) {
    .history-item {
        grid-template-columns: 1fr;
        gap: 0.4rem;
    }

    .news-card-featured {
        grid-column: span 1;
    }
}

@media (prefers-reduced-motion: reduce) {
    .reveal-section {
        opacity: 1;
        transform: none;
        transition: none;
    }
}