/* ============================================
   Mahidol Geophysics — MU Branded Stylesheet
   ============================================ */

:root {
    --mu-navy: #1E3A5F;
    --mu-blue: #2B6CB0;
    --mu-gold: #C6922A;
    --mu-gold-light: #D4A94E;
    --mu-dark: #0F1B2D;
    --mu-gray: #F5F7FA;
    --mu-gray-dark: #4A5568;
    --mu-white: #FFFFFF;
    --max-width: 1200px;
    --nav-height: 70px;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.15);
    --radius: 8px;
    --transition: 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: #2D3748;
    line-height: 1.6;
    background: var(--mu-white);
}

a { color: var(--mu-blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--mu-gold); }

img { max-width: 100%; height: auto; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* Navigation */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-height);
    background: var(--mu-navy);
    z-index: 1000;
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--mu-white);
    font-weight: 700;
    font-size: 1.1rem;
}

.nav-brand img {
    height: 42px;
    width: auto;
}

.nav-brand span { color: var(--mu-gold); font-size: 0.85rem; display: block; font-weight: 400; }

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-links a {
    color: rgba(255,255,255,0.85);
    padding: 8px 14px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--mu-white);
    background: rgba(255,255,255,0.1);
}

.nav-links a.btn-course {
    background: var(--mu-gold);
    color: var(--mu-navy);
    font-weight: 600;
}

.nav-links a.btn-course:hover {
    background: var(--mu-gold-light);
}

.nav-links a.btn-member {
    border: 1.5px solid var(--mu-gold);
    color: var(--mu-gold);
    font-size: 0.8rem;
    padding: 4px 12px;
}

.nav-links a.btn-member:hover {
    background: var(--mu-gold);
    color: var(--mu-navy);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--mu-white);
    border-radius: 2px;
    transition: all var(--transition);
}

/* Hero */
.hero {
    margin-top: var(--nav-height);
    background: linear-gradient(135deg, var(--mu-navy) 0%, var(--mu-blue) 50%, var(--mu-navy) 100%);
    color: var(--mu-white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 400"><circle cx="400" cy="200" r="150" fill="none" stroke="rgba(198,146,42,0.15)" stroke-width="2"/><circle cx="400" cy="200" r="200" fill="none" stroke="rgba(198,146,42,0.1)" stroke-width="1.5"/><circle cx="400" cy="200" r="250" fill="none" stroke="rgba(198,146,42,0.05)" stroke-width="1"/></svg>') center/cover no-repeat;
    opacity: 0.5;
}

.hero-photo {
    background-image: url('../img/fieldwork-banner.jpg');
    background-size: cover;
    background-position: center 40%;
}

.hero-photo::before {
    background: linear-gradient(135deg, rgba(30,58,95,0.85) 0%, rgba(43,108,176,0.7) 50%, rgba(30,58,95,0.85) 100%);
    opacity: 1;
}

.hero .container { position: relative; z-index: 1; }

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.hero h1 .gold { color: var(--mu-gold); }

.hero .subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 12px;
    font-weight: 300;
}

.hero .dept-info {
    font-size: 0.95rem;
    opacity: 0.7;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-small {
    padding: 50px 0;
}

.hero-small h1 { font-size: 2.2rem; margin-bottom: 8px; }
.hero-small .subtitle { margin-bottom: 0; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: var(--mu-gold);
    color: var(--mu-navy);
}
.btn-primary:hover { background: var(--mu-gold-light); color: var(--mu-navy); }

.btn-outline {
    border-color: rgba(255,255,255,0.4);
    color: var(--mu-white);
    background: transparent;
}
.btn-outline:hover { border-color: var(--mu-white); color: var(--mu-white); }

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

.btn-download {
    background: var(--mu-blue);
    color: var(--mu-white);
}
.btn-download:hover { background: var(--mu-navy); color: var(--mu-white); }

.btn-download-outline {
    border-color: var(--mu-blue);
    color: var(--mu-blue);
    background: transparent;
}
.btn-download-outline:hover { background: var(--mu-blue); color: var(--mu-white); }

/* Sections */
.section {
    padding: 70px 0;
}

.section-alt {
    background: var(--mu-gray);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--mu-navy);
    margin-bottom: 8px;
}

.section-subtitle {
    color: var(--mu-gray-dark);
    font-size: 1.05rem;
    margin-bottom: 40px;
}

.gold-bar {
    width: 60px;
    height: 3px;
    background: var(--mu-gold);
    margin-bottom: 16px;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.card {
    background: var(--mu-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.card h3 {
    font-size: 1.15rem;
    color: var(--mu-navy);
    margin-bottom: 10px;
}

.card p {
    color: var(--mu-gray-dark);
    font-size: 0.9rem;
    line-height: 1.6;
}

.card .card-icon {
    font-size: 2rem;
    margin-bottom: 14px;
    display: block;
}

/* Quick Links / Feature Cards */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--mu-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition);
    border-top: 3px solid transparent;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--mu-gold);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.feature-card h3 {
    font-size: 1.1rem;
    color: var(--mu-navy);
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--mu-gray-dark);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

/* News */
.news-list { display: flex; flex-direction: column; gap: 20px; }

.news-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px;
    background: var(--mu-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.news-thumb {
    width: 180px;
    min-width: 180px;
    height: 110px;
    object-fit: cover;
    border-radius: var(--radius);
}

.news-date {
    background: var(--mu-navy);
    color: var(--mu-gold);
    padding: 10px 14px;
    border-radius: var(--radius);
    text-align: center;
    font-weight: 700;
    min-width: 65px;
    line-height: 1.2;
}

.news-date .month { font-size: 0.75rem; text-transform: uppercase; display: block; color: rgba(255,255,255,0.7); }
.news-date .day { font-size: 1.4rem; display: block; }

.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.news-cat { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--mu-blue); font-weight: 600; }
.news-date-text { font-size: 0.75rem; color: var(--mu-gray-dark); }
.news-content { flex: 1; }
.news-content h3 { font-size: 1rem; color: var(--mu-navy); margin-bottom: 4px; }
.news-content p { font-size: 0.9rem; color: var(--mu-gray-dark); }
.news-link { display: inline-block; margin-top: 8px; font-size: 0.85rem; color: var(--mu-blue); font-weight: 600; text-decoration: none; }
.news-link:hover { text-decoration: underline; }

.news-deadline { display: inline-block; font-size: 0.8rem; color: #e53e3e; font-weight: 600; margin-top: 4px; margin-right: 12px; }
.news-location { display: inline-block; font-size: 0.8rem; color: var(--mu-gray-dark); margin-top: 4px; }

/* Timeline / Upcoming Deadlines */
.timeline { display: flex; flex-direction: column; gap: 16px; }
.timeline-item {
    display: flex; gap: 20px; align-items: flex-start;
    padding: 20px; background: var(--mu-white); border-radius: var(--radius);
    box-shadow: var(--shadow); border-left: 4px solid var(--mu-navy);
}
.timeline-item.soon { border-left-color: var(--mu-gold); }
.timeline-item.urgent { border-left-color: #e53e3e; }
.timeline-date {
    text-align: center; min-width: 70px; padding: 8px;
    background: var(--mu-navy); border-radius: var(--radius); color: var(--mu-gold); font-weight: 700;
}
.timeline-item.urgent .timeline-date { background: #e53e3e; color: #fff; }
.timeline-item.soon .timeline-date { background: var(--mu-gold); color: var(--mu-navy); }
.tl-month { display: block; font-size: 0.7rem; text-transform: uppercase; opacity: 0.8; }
.tl-day { display: block; font-size: 1.5rem; line-height: 1.2; }
.tl-days-left { display: block; font-size: 0.65rem; margin-top: 2px; text-transform: uppercase; letter-spacing: 0.5px; }
.timeline-content { flex: 1; }
.timeline-content h3 { font-size: 1rem; color: var(--mu-navy); margin-bottom: 4px; }
.timeline-content p { font-size: 0.9rem; color: var(--mu-gray-dark); margin-bottom: 4px; }
.tl-location { font-size: 0.82rem; color: var(--mu-gray-dark); margin-right: 12px; }

@media (max-width: 600px) {
    .news-item { flex-direction: column; }
    .news-thumb { width: 100%; height: 160px; }
    .timeline-item { flex-direction: column; }
}

/* Team */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}

.team-card {
    text-align: center;
    background: var(--mu-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px 24px;
    transition: all var(--transition);
}

.team-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

.team-photo {
    width: 170px;
    height: 170px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center center;
    margin: 0 auto 16px;
    display: block;
    background: var(--mu-gray);
    border: 3px solid var(--mu-gold);
}

.team-photo-zoom {
    width: 170px;
    height: 170px;
    border-radius: 50%;
    margin: 0 auto 16px;
    overflow: hidden;
    border: 3px solid var(--mu-gold);
    flex-shrink: 0;
}

.team-photo-zoom img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 15%;
    transform: scale(1.4);
    transform-origin: center 25%;
}

.team-photo-placeholder {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: linear-gradient(135deg, var(--mu-navy), var(--mu-blue));
    color: var(--mu-white);
    border: 3px solid var(--mu-gold);
}

.team-card h3 { color: var(--mu-navy); font-size: 1.1rem; margin-bottom: 4px; }
.team-card .role { color: var(--mu-gold); font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; }
.team-card p { color: var(--mu-gray-dark); font-size: 0.85rem; }

.team-card .links { margin-top: 12px; display: flex; justify-content: center; gap: 12px; }
.team-card .links a { color: var(--mu-blue); font-size: 0.85rem; }

/* Faculty lead - wider card */
.team-lead {
    grid-column: 1 / -1;
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    gap: 32px;
    align-items: center;
    text-align: left;
    padding: 40px;
}

.team-lead .team-photo-placeholder { margin: 0; flex-shrink: 0; }

/* Publications */
.pub-list { display: flex; flex-direction: column; gap: 16px; }

.pub-item {
    padding: 20px 24px;
    background: var(--mu-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-left: 3px solid var(--mu-blue);
}

.pub-item:hover { border-left-color: var(--mu-gold); }

.pub-item h3 { font-size: 0.95rem; color: var(--mu-navy); margin-bottom: 6px; line-height: 1.5; }
.pub-item .journal { color: var(--mu-blue); font-style: italic; font-size: 0.88rem; }
.pub-item .authors { color: var(--mu-gray-dark); font-size: 0.85rem; margin-bottom: 4px; }
.pub-item .meta { display: flex; gap: 12px; align-items: center; margin-top: 8px; flex-wrap: wrap; }

.pub-tag {
    display: inline-block;
    padding: 2px 10px;
    background: var(--mu-gray);
    color: var(--mu-gray-dark);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.pub-tag.active {
    background: var(--mu-navy);
    color: var(--mu-white);
}

.pub-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.pub-filter-btn {
    padding: 6px 16px;
    border: 1px solid var(--mu-blue);
    background: transparent;
    color: var(--mu-blue);
    border-radius: 20px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition);
}

.pub-filter-btn:hover,
.pub-filter-btn.active {
    background: var(--mu-navy);
    color: var(--mu-white);
    border-color: var(--mu-navy);
}

/* PTTEP Course */
.session-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.session-card {
    background: var(--mu-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px 32px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
    transition: all var(--transition);
}

.session-card:hover { box-shadow: var(--shadow-lg); }

.session-num {
    background: var(--mu-navy);
    color: var(--mu-gold);
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 800;
    flex-shrink: 0;
}

.session-info { flex: 1; }
.session-info h3 { font-size: 1.15rem; color: var(--mu-navy); margin-bottom: 6px; }
.session-info p { font-size: 0.9rem; color: var(--mu-gray-dark); margin-bottom: 14px; }

.session-downloads {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.download-section {
    background: var(--mu-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px 32px;
}

.download-section h3 {
    color: var(--mu-navy);
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.download-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.download-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--mu-gray);
    border-radius: var(--radius);
}

.download-item .file-info { display: flex; align-items: center; gap: 10px; }
.download-item .file-icon { font-size: 1.2rem; }
.download-item .file-name { font-size: 0.9rem; color: var(--mu-navy); font-weight: 500; }

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.contact-info { display: flex; flex-direction: column; gap: 20px; }

.contact-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.contact-item .icon {
    font-size: 1.3rem;
    background: var(--mu-gray);
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item h3 { font-size: 0.95rem; color: var(--mu-navy); margin-bottom: 2px; }
.contact-item p { font-size: 0.9rem; color: var(--mu-gray-dark); }
.contact-item a { color: var(--mu-blue); }

.map-container {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 100%;
    min-height: 350px;
}

.map-container iframe { width: 100%; height: 100%; border: 0; }

.academic-links {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--mu-dark);
    color: rgba(255,255,255,0.7);
    padding: 40px 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 32px;
    margin-bottom: 28px;
}

.footer-brand h3 { color: var(--mu-white); font-size: 1.1rem; margin-bottom: 4px; }
.footer-brand p { font-size: 0.85rem; }

.footer-links h4 { color: var(--mu-gold); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 0.85rem; }
.footer-links a:hover { color: var(--mu-gold); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0; right: 0;
        background: var(--mu-navy);
        flex-direction: column;
        padding: 16px 24px;
        gap: 4px;
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--transition);
        pointer-events: none;
        box-shadow: var(--shadow-lg);
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-links a { padding: 12px 16px; width: 100%; }

    .hero { padding: 50px 0; }
    .hero h1 { font-size: 2rem; }
    .hero .subtitle { font-size: 1rem; }

    .hero-small h1 { font-size: 1.6rem; }

    .feature-grid { grid-template-columns: 1fr; }
    .card-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; }

    .team-lead {
        flex-direction: column;
        text-align: center;
    }

    .session-card { flex-direction: column; }

    .section { padding: 50px 0; }
    .section-title { font-size: 1.6rem; }

    .download-item { flex-direction: column; gap: 10px; align-items: flex-start; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.7rem; }
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
    .session-downloads { flex-direction: column; }
    .session-downloads .btn { width: 100%; justify-content: center; }
}

/* ============================================
   Forms & Admin Styles
   ============================================ */

.form-card {
    background: var(--mu-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--mu-navy);
    margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group input[type="url"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #CBD5E0;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color var(--transition);
    background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--mu-blue);
    box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-group input[type="file"] {
    font-size: 0.85rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
}

/* Alerts */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.alert-error {
    background: #FED7D7;
    color: #9B2C2C;
    border: 1px solid #FEB2B2;
}

.alert-success {
    background: #C6F6D5;
    color: #276749;
    border: 1px solid #9AE6B4;
}

/* Admin Tables */
.admin-table-wrap {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--mu-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.admin-table thead {
    background: var(--mu-navy);
    color: var(--mu-white);
}

.admin-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.admin-table td {
    padding: 12px 16px;
    font-size: 0.88rem;
    border-bottom: 1px solid #EDF2F7;
    vertical-align: middle;
}

.admin-table tbody tr:hover {
    background: var(--mu-gray);
}

.admin-table code {
    background: #EDF2F7;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.82rem;
}

/* ============================================
   Publication Cards
   ============================================ */
.pub-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.pub-card {
    background: var(--mu-white);
    border-radius: var(--radius);
    padding: 24px;
    border-left: 4px solid var(--mu-gold);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: transform var(--transition), box-shadow var(--transition);
}
.pub-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}
.pub-year {
    display: inline-block;
    background: var(--mu-navy);
    color: var(--mu-gold);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 12px;
    margin-bottom: 8px;
}
.pub-card h3 {
    font-size: 0.95rem;
    line-height: 1.4;
    margin-bottom: 8px;
    color: var(--mu-navy);
}
.pub-authors {
    font-size: 0.82rem;
    color: var(--mu-gray-dark);
    line-height: 1.5;
    margin-bottom: 10px;
}
@media (max-width: 768px) {
    .pub-cards { grid-template-columns: 1fr; }
}

/* ============================================
   Gallery
   ============================================ */

/* Gallery album titles */
.gallery-album-title {
    font-size: 1.3rem;
    color: var(--mu-navy);
    margin: 32px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--mu-gold);
}
.gallery-album-title:first-of-type { margin-top: 0; }
.gallery-album-desc {
    display: block;
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--mu-gray-dark);
    margin-top: 4px;
}

/* Gallery Grid — masonry-like with CSS columns */
.gallery-grid {
    column-count: 4;
    column-gap: 12px;
}

.gallery-item {
    break-inside: avoid;
    margin-bottom: 12px;
    cursor: pointer;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
}

.gallery-item img {
    width: 100%;
    display: block;
    transition: transform var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.03);
}

.gallery-item .caption-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px 12px 10px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: #fff;
    font-size: 0.82rem;
    opacity: 0;
    transition: opacity var(--transition);
}

.gallery-item:hover .caption-overlay {
    opacity: 1;
}

/* Category filter pills */
.gallery-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.gallery-filter {
    padding: 6px 16px;
    border-radius: 20px;
    border: 2px solid var(--mu-navy);
    background: transparent;
    color: var(--mu-navy);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition);
    font-family: inherit;
}

.gallery-filter:hover {
    background: var(--mu-navy);
    color: var(--mu-gold);
}

.gallery-filter.active {
    background: var(--mu-navy);
    color: var(--mu-gold);
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 4px;
}

.lightbox-caption {
    color: rgba(255,255,255,0.85);
    font-size: 0.9rem;
    margin-top: 12px;
    text-align: center;
    max-width: 600px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--transition);
    z-index: 2001;
    line-height: 1;
}

.lightbox-close:hover { opacity: 1; }

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.1);
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    padding: 12px 16px;
    border-radius: var(--radius);
    opacity: 0.6;
    transition: opacity var(--transition);
    z-index: 2001;
    line-height: 1;
}

.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }
.lightbox-prev:hover,
.lightbox-next:hover { opacity: 1; }

/* Admin gallery grid */
.admin-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.admin-gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    background: var(--mu-white);
}

.admin-gallery-item img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    display: block;
}

.admin-gallery-item .item-info {
    padding: 8px 10px;
    font-size: 0.78rem;
    color: var(--mu-gray-dark);
}

.admin-gallery-item .item-check {
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 1;
}

/* Responsive gallery */
@media (max-width: 900px) {
    .gallery-grid { column-count: 3; }
}

@media (max-width: 600px) {
    .gallery-grid { column-count: 2; }
    .admin-gallery-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}