/* ============================================================
   dominiccucic.com — shared stylesheet
   One system across home / research / cv.
   Identity: serif display (Newsreader) + system sans body,
   ink-navy links with a muted oxblood secondary, on white.
   ============================================================ */

:root {
    --accent:      #15385c;  /* ink navy — links, active nav */
    --accent-warm: #8a3324;  /* muted oxblood — award, NEW badge */
    --ink:         #1a2432;  /* near-black serif headings / name */
    --text:        #2f2f2f;  /* body text */
    --muted:       #666;     /* secondary text */
    --faint:       #888;     /* tertiary / captions */
    --rule:        #e0e0e0;  /* hairlines */
    --sep:         #8a8a8a;  /* link separators */
    --maxw:        900px;    /* single content width, all pages */

    --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
    --sans:  -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--sans);
    background: #fff;
    font-size: 16px;
    line-height: 1.65;
    color: var(--text);
    -webkit-overflow-scrolling: touch;
}

/* ── Links ──────────────────────────────────────────────
   Content links carry a persistent, quiet underline for
   scannability; nav links and paper titles stay clean until
   hover. ──────────────────────────────────────────────── */
a {
    color: var(--accent);
    text-decoration-line: underline;
    text-decoration-thickness: 1px;
    text-decoration-color: rgba(21, 56, 92, 0.4);
    text-underline-offset: 2px;
}

a:hover {
    text-decoration-color: currentColor;
}

a:focus-visible,
.button-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ── Navigation ─────────────────────────────────────────
   Full-width bar; inner wrapper constrained to the content
   column so nav items align with the content below. ────── */
.site-nav {
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--rule);
    margin-bottom: 36px;
}

.nav-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-name {
    font-family: var(--serif);
    color: var(--ink);
    font-weight: 600;
    font-size: 17px;
    padding: 0 16px 0 0;
    white-space: nowrap;
}

.nav-links {
    display: flex;
}

.nav-links a {
    color: var(--muted);
    text-decoration: none;
    padding: 14px 18px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.01em;
    border-bottom: 2px solid transparent;
}

.nav-links a.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.nav-links a:hover {
    color: var(--accent);
}

/* ── Shared content wrapper ─────────────────────────────── */
.container,
.content-wrap,
.cv-content {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 20px 40px 20px;
}

/* ── Shared section headings ────────────────────────────── */
.section-title,
.research-focus h2,
.updates-section > h2,
.contact-section h2 {
    font-family: var(--serif);
    font-size: 19px;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--ink);
    margin-bottom: 16px;
    border-bottom: 1px solid var(--rule);
    padding-bottom: 8px;
}

/* ============================================================
   HOME
   ============================================================ */

/* ── Masthead ── */
.page-home .masthead {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 40px;
    align-items: center;
}

.profile-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center top;
}

.page-home .masthead h1 {
    font-family: var(--serif);
    font-size: 48px;
    font-weight: 600;
    letter-spacing: -0.015em;
    line-height: 1.03;
    color: var(--ink);
}

.page-home .masthead .role {
    font-family: var(--serif);
    font-style: italic;
    font-size: 18px;
    color: var(--muted);
    margin-top: 10px;
}

.page-home .masthead .thesis {
    font-family: var(--serif);
    font-size: 23px;
    line-height: 1.42;
    color: var(--ink);
    margin-top: 18px;
    max-width: 42ch;
}

/* ── Focus band: the three research pillars ── */
.focus-band {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 34px;
    margin-top: 44px;
    padding-top: 30px;
    border-top: 1px solid var(--rule);
}

.focus-item .tick {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--accent);
    margin-bottom: 14px;
}

.focus-item h3 {
    font-family: var(--serif);
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 6px;
}

.focus-item p {
    font-size: 14px;
    line-height: 1.55;
    color: var(--muted);
}

/* ── Bio ── */
.page-home .bio {
    margin-top: 44px;
}

.intro-text {
    line-height: 1.7;
    margin-bottom: 16px;
    color: var(--text);
}

.updates-section {
    margin-top: 44px;
    padding-top: 30px;
    border-top: 1px solid var(--rule);
    margin-bottom: 44px;
}

.updates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.update-category h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.update-item {
    margin-bottom: 12px;
    font-size: 15px;
    line-height: 1.55;
    color: #444;
}

.update-item:last-child {
    margin-bottom: 0;
}

.update-date {
    font-weight: 500;
    color: var(--muted);
}

.contact-section {
    margin-top: 44px;
    padding-top: 24px;
    border-top: 1px solid var(--rule);
}

.contact-section h2 {
    border-bottom: none;
    padding-bottom: 0;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.contact-info div {
    font-size: 15px;
    line-height: 1.7;
    color: #444;
}

.disclaimer {
    font-size: 12px;
    color: #999;
    font-style: italic;
    margin-top: 44px;
    text-align: center;
}

/* ============================================================
   RESEARCH
   ============================================================ */
.section {
    margin-bottom: 48px;
}

.section-title {
    margin-bottom: 20px;
}

.paper-item {
    margin-bottom: 30px;
    padding-bottom: 20px;
}

.paper-title {
    color: var(--accent);
    cursor: pointer;
    text-decoration: none;
    font-weight: 500;
    display: block;
    margin-bottom: 5px;
    font-size: 17px;
}

.paper-title.no-expand {
    cursor: default;
    color: var(--ink);
}

.paper-title:hover {
    text-decoration: underline;
}

.paper-title.no-expand:hover {
    text-decoration: none;
}

.paper-details {
    color: var(--muted);
    margin: 3px 0;
    font-size: 15px;
}

.paper-details em {
    font-style: italic;
    font-weight: bold;
}

.paper-links {
    margin: 8px 0;
    font-size: 14px;
    color: var(--muted);
}

.paper-links a,
.paper-links .button-link {
    color: var(--accent);
    text-decoration: none;
    cursor: pointer;
}

.paper-links a:hover,
.paper-links .button-link:hover {
    text-decoration: underline;
}

.paper-links .sep {
    color: var(--sep);
    margin: 0 4px;
    user-select: none;
}

.abstract {
    display: none;
    margin-top: 15px;
    padding: 15px;
    background-color: #f8f9fa;
    border-left: 3px solid var(--accent);
    line-height: 1.65;
    font-size: 15px;
    color: var(--text);
}

.abstract.show {
    display: block;
}

.presentations {
    font-size: 13px;
    color: var(--muted);
    margin-top: 10px;
    line-height: 1.55;
}

.award {
    font-size: 14px;
    color: var(--accent-warm);
    font-weight: 500;
    margin-top: 6px;
}

.expand-icon {
    font-size: 12px;
    margin-left: 5px;
    transition: transform 0.2s ease;
    display: inline-block;
}

.expand-icon.rotated {
    transform: rotate(180deg);
}

/* Compact variant for secondary categories */
.section.compact {
    margin-bottom: 32px;
}

.section.compact .paper-item {
    margin-bottom: 14px;
    padding-bottom: 0;
}

.section.compact .paper-title {
    font-size: 15px;
    margin-bottom: 2px;
}

.section.compact .paper-details {
    font-size: 13px;
    margin: 0;
}

/* NEW badge — folded into the warm accent system */
.badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    background: #f7ecea;
    color: var(--accent-warm);
    border: 1px solid #e6cfca;
    margin-right: 10px;
    vertical-align: middle;
}

/* ============================================================
   CV
   ============================================================ */
.cv-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #ddd;
}

.cv-name {
    font-family: var(--serif);
    font-size: 34px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin-bottom: 8px;
}

.cv-subtitle {
    font-family: var(--serif);
    font-size: 16px;
    color: var(--muted);
    font-style: italic;
    margin-bottom: 15px;
}

.cv-header .contact-info {
    display: block;
    font-size: 14px;
    color: var(--muted);
}

.cv-item {
    margin-bottom: 20px;
}

.cv-item-title {
    font-weight: 500;
    font-size: 16px;
    margin-bottom: 3px;
    color: var(--ink);
}

.cv-item-details {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 5px;
}

.cv-item-period {
    color: var(--faint);
    font-size: 14px;
    float: right;
}

.paper-link {
    color: var(--accent);
}

.research-fields {
    font-size: 16px;
    color: var(--muted);
    font-style: italic;
}

.skills-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 10px;
}

.skill-category {
    font-size: 14px;
}

.skill-category strong {
    color: var(--ink);
}

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .title-institution {
        display: block;
    }

    .nav-name {
        display: none;
    }

    .nav-inner {
        padding: 0;
    }

    .nav-links {
        flex: 1;
        width: 100%;
    }

    .nav-links a {
        flex: 1;
        text-align: center;
        padding: 12px 0;
    }

    .page-home .masthead {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 22px;
    }

    .profile-photo {
        width: 140px;
        height: 140px;
        margin: 0 auto;
    }

    .page-home .masthead .thesis {
        margin-left: auto;
        margin-right: auto;
    }

    .focus-band {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .focus-item {
        text-align: center;
    }

    .focus-item .tick {
        margin-left: auto;
        margin-right: auto;
    }

    .updates-grid,
    .contact-info {
        grid-template-columns: 1fr;
    }

    .paper-item {
        margin-bottom: 20px;
        padding-bottom: 12px;
    }

    .section {
        margin-bottom: 32px;
    }
}

@media (max-width: 600px) {
    .cv-name {
        font-size: 28px;
    }

    .cv-item-period {
        float: none;
        display: block;
        margin-top: 5px;
    }

    .skills-list {
        grid-template-columns: 1fr;
    }
}

/* ── Reduced motion ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .expand-icon {
        transition: none;
    }
}