:root {
    --primary-color: #005a9c;
    --header-bg-color: #177E89;
    --background-color: #f4f7f6;
    --card-bg-color: #ffffff;
    --border-color: #e0e0e0;
}
body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    background-color: var(--background-color);
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.main-header {
    background-color: var(--header-bg-color);
    color: white;
    text-align: center;
    padding: 20px;
}
.main-header img { height: 50px; margin-bottom: 10px; }
main {
    padding: 32px 20px;
    flex: 1;
}
.campus-list {
    max-width: 680px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.campus-group-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #80868b;
    margin: 0 0 10px 4px;
}
.campus-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.campus-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid #dadce0;
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    flex: 1;
    min-width: 200px;
    background: white;
    transition: box-shadow 0.15s, border-color 0.15s;
}
.campus-card:not(.disabled):hover {
    border-color: #1967d2;
    box-shadow: 0 1px 6px rgba(32, 33, 36, 0.12);
}
.campus-card-icon {
    font-size: 26px;
    flex-shrink: 0;
}
.campus-card-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    text-align: left;
}
.campus-card-text strong {
    font-size: 0.95rem;
    font-weight: 600;
    color: #202124;
}
.campus-card-text span {
    font-size: 0.78rem;
    color: #5f6368;
}
.campus-card.disabled { opacity: 0.45; cursor: not-allowed; }
.main-footer {
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
    color: #888;
}
.main-footer a { color: var(--primary-color); }