/* Portfolio landing + PhD-pagina (gedeeld) */

.hero-subtitle {
    font-size: 1rem;
    margin: 4px 0 28px;
    color: var(--text-secondary);
    font-weight: 400;
    font-style: italic;
    text-decoration: underline;
}

.hero-content h1 {
    margin-bottom: 8px;
    line-height: 1.35;
}

.hero-copy {
    margin: 20px 0 32px;
    line-height: 1.7;
}

.hero-copy p {
    margin: 0 0 16px;
    color: var(--text-secondary);
}

.hero-copy p:last-child {
    margin-bottom: 0;
}

.hero-actions {
    margin-top: 32px;
}

.hero-highlights {
    margin-top: 40px;
}

.work-section-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 700px) {
    .work-section-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.phd-teaser {
    max-width: 720px;
}

.phd-teaser p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0 0 24px;
}

.hero-card-activities {
    max-width: 460px;
}

.hero-card-activities .activity-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.hero-card-activities .activity-phd {
    padding-right: 16px;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-card-activities .activity-projects {
    padding-left: 16px;
}

@media (max-width: 480px) {
    .hero-card-activities .activity-grid {
        grid-template-columns: 1fr;
    }

    .hero-card-activities .activity-phd {
        padding-right: 0;
        padding-bottom: 16px;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    .hero-card-activities .activity-projects {
        padding-left: 0;
    }
}

.activity-block {
    padding: 0;
    display: flex;
    flex-direction: column;
}

.activity-block-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.activity-block-label i {
    opacity: 0.8;
}

.activity-prev-phase {
    background: none;
    border: none;
    padding: 0;
    margin: -2px 0 8px;
    font-size: 0.72rem;
    color: var(--text-muted);
    cursor: pointer;
    text-align: left;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    opacity: 0.9;
    max-width: 100%;
}

.activity-prev-phase:hover {
    color: var(--primary);
    opacity: 1;
}

.activity-prev-phase i {
    font-size: 0.65rem;
    color: var(--success);
    flex-shrink: 0;
}

.activity-prev-phase span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.activity-block h3 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.activity-block .hero-card-meta,
.activity-block .hero-card-note {
    font-size: 0.8rem;
}

.hero-card-roadmap {
    margin: 12px 0 16px 0;
    padding-left: 0;
    position: relative;
}

.hero-card-roadmap-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 8px;
    opacity: 0.9;
}

.hero-card-roadmap::before {
    content: '';
    position: absolute;
    left: 0;
    top: 26px;
    bottom: 10px;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), transparent);
    border-radius: 1px;
    opacity: 0.6;
}

.hero-card-roadmap-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.35;
    position: relative;
    z-index: 1;
}

.hero-card-roadmap-item:not(:last-child) {
    margin-bottom: 8px;
}

.hero-card-roadmap-num {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent-primary));
    color: var(--bg-card);
    font-size: 0.7rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.activity-projects .hero-card-note {
    margin-top: 8px;
    margin-bottom: 0;
}

.activity-block .hero-card-note {
    margin-bottom: 16px;
}

.activity-block .btn,
.activity-block .activity-more-btn {
    margin-top: auto;
    padding: 5px 10px;
    font-size: 0.75rem;
}

.activity-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.activity-modal[hidden] {
    display: none !important;
}

.activity-modal-backdrop {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    cursor: pointer;
}

.activity-modal-content {
    position: relative;
    z-index: 2;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px;
    max-width: 480px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
    pointer-events: auto;
}

.activity-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 10;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    line-height: 1;
    padding: 8px 12px;
}

.activity-modal-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.15);
}

.activity-modal-image {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 16px;
    display: block;
}

.activity-modal-title {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.activity-modal-text {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.activity-modal-text p {
    margin: 0 0 10px;
}

.activity-modal-text p:last-child {
    margin-bottom: 0;
}

.activity-modal-text img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 12px 0;
    display: block;
}

.activity-modal-text ul,
.activity-modal-text ol {
    margin: 8px 0;
    padding-left: 24px;
}

.activity-modal-text a {
    color: var(--accent-primary);
    text-decoration: underline;
}

.activity-modal-link {
    margin-top: 8px;
}

.activity-modal-empty {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.activity-modal-roadmap {
    margin-top: 8px;
}

.activity-modal-roadmap-group {
    margin-bottom: 20px;
}

.activity-modal-roadmap-group:last-child {
    margin-bottom: 0;
}

.activity-modal-roadmap-phase {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    margin: 0 0 10px;
}

.activity-modal-roadmap-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.activity-modal-roadmap-item:last-child {
    border-bottom: none;
}

.activity-modal-roadmap-num {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(110, 243, 255, 0.15);
    color: var(--primary);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.activity-modal-section {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.activity-modal-section:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.activity-modal-section-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    margin: 0 0 12px;
}

.activity-modal-news-item {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.activity-modal-news-item:last-child {
    border-bottom: none;
}

.activity-modal-news-title {
    margin: 0;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.activity-modal-news-meta,
.activity-modal-pub-meta {
    margin: 4px 0 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.activity-modal-news-summary {
    margin: 6px 0 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.activity-modal-publications {
    list-style: none;
    margin: 0;
    padding: 0;
}

.activity-modal-publication-item {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.activity-modal-publication-item:last-child {
    border-bottom: none;
}

.activity-modal-inline-link {
    display: inline-block;
    margin-top: 6px;
    font-size: 0.82rem;
    color: var(--primary);
    text-decoration: none;
}

.activity-modal-inline-link:hover {
    text-decoration: underline;
}

.activity-modal-footer-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: none;
}

.activity-modal-footer-link:hover {
    color: var(--primary);
}

.portfolio-nav-links a.is-active {
    color: var(--primary);
}

/* PhD-portfolio pagina */

.phd-page-hero {
    padding: 64px 5vw 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    background: linear-gradient(180deg, rgba(10, 16, 32, 0.6) 0%, transparent 100%);
}

.phd-page-hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: start;
}

@media (min-width: 900px) {
    .phd-page-hero-grid {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

.phd-page-hero h1 {
    font-size: clamp(2rem, 3vw, 2.75rem);
    margin: 8px 0 16px;
    line-height: 1.25;
}

.phd-page-intro {
    color: var(--text-secondary);
    line-height: 1.75;
    max-width: 640px;
    margin: 0;
}

.phd-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    margin-top: 28px;
}

.phd-stat-card {
    background: rgba(14, 22, 43, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 18px 20px;
}

.phd-stat-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin: 0 0 6px;
}

.phd-stat-value {
    font-size: 1.35rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.2;
}

.phd-stat-sub {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin: 6px 0 0;
}

.phd-current-card {
    background: rgba(14, 22, 43, 0.9);
    border: 1px solid rgba(110, 243, 255, 0.2);
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 20px 50px rgba(5, 10, 25, 0.35);
}

.phd-current-card .hero-card-label {
    color: var(--primary);
}

.phd-phase-timeline {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.phd-phase-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 18px;
    padding: 24px 24px 24px 28px;
    border-left: 4px solid rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow);
}

.phd-phase-card.is-current {
    border-left-color: var(--primary);
    box-shadow: 0 15px 35px rgba(110, 243, 255, 0.12);
}

.phd-phase-card.is-completed {
    border-left-color: var(--success);
    opacity: 0.92;
}

.phd-phase-header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.phd-phase-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.phd-phase-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 6px 0 0;
}

.phd-phase-badge {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    white-space: nowrap;
}

.phd-phase-badge.is-current {
    background: rgba(110, 243, 255, 0.15);
    color: var(--primary);
}

.phd-phase-badge.is-completed {
    background: rgba(72, 187, 120, 0.15);
    color: var(--success);
}

.phd-phase-roadmap {
    margin-top: 4px;
}

.phd-phase-roadmap-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

.phd-phase-roadmap-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.phd-phase-roadmap-num {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(110, 243, 255, 0.12);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.phd-phase-empty {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
    font-style: italic;
}

.phd-news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.phd-news-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 22px;
}

.phd-news-card h4 {
    margin: 0 0 8px;
    font-size: 1rem;
}

.phd-news-meta {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin: 0 0 10px;
}

.phd-news-summary {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin: 0;
}

.rich-text p {
    margin: 0 0 10px;
}

.rich-text p:last-child {
    margin-bottom: 0;
}

.rich-text ul,
.rich-text ol {
    margin: 8px 0 10px;
    padding-left: 22px;
}

.rich-text li {
    margin-bottom: 4px;
}

.rich-text h2,
.rich-text h3 {
    margin: 0 0 8px;
    font-size: 1rem;
    color: var(--text-primary);
}

.rich-text blockquote {
    margin: 8px 0;
    padding-left: 14px;
    border-left: 3px solid rgba(110, 243, 255, 0.35);
    color: var(--text-secondary);
}

.rich-text a {
    color: var(--primary);
    text-decoration: underline;
}

.rich-text strong {
    color: var(--text-primary);
}

.phd-publication-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.phd-publication-item {
    padding: 20px 24px;
    border-radius: 14px;
    background: rgba(15, 24, 45, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.phd-publication-item strong {
    display: block;
    margin-bottom: 6px;
    font-size: 1rem;
}

.phd-publication-authors {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 0 4px;
}

.phd-publication-venue {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0;
}

.phd-publication-item a {
    display: inline-block;
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--primary);
    text-decoration: none;
}

.phd-publication-item a:hover {
    text-decoration: underline;
}

.phd-section-empty {
    color: var(--text-muted);
    font-style: italic;
    margin: 0;
}