/* Shared "editorial academic" styling for the personal/academic pages
   (index.html, teaching.html). Keep this file in sync across pages
   instead of copy-pasting <style> blocks. */

:root {
    --ink: #1b1a17;
    --ink-soft: #4a453d;
    --muted: #78715f;
    --paper: #faf7f1;
    --paper-alt: #f2ebdd;
    --surface: #ffffff;
    --line: #e6ddc9;
    --accent: #1f6f5c;
    --accent-deep: #14493d;
    --accent-soft: #e7f1ee;
    --gold: #b8935a;
    --radius: 16px;
    --serif: 'Fraunces', 'Georgia', serif;
    --sans: 'Inter', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    background: var(--paper);
    color: var(--ink);
    margin: 0;
    line-height: 1.7;
}

.top-bar {
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--accent-deep));
}

.wrapper {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 28px 90px;
}

/* Navigation */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding: 22px 28px;
    margin: 0 -28px 8px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
}

.site-nav .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--ink);
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--serif);
    font-weight: 600;
    font-size: .85rem;
    color: var(--accent-deep);
    background: var(--surface);
}

.brand-name {
    font-family: var(--serif);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: .01em;
}

.site-nav .links {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.site-nav .links a {
    color: var(--muted);
    text-decoration: none;
    font-size: .82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
    transition: color .2s, border-color .2s;
}

.site-nav .links a:hover,
.site-nav .links a.active {
    color: var(--accent-deep);
    border-color: var(--gold);
}

/* Hero */
@keyframes riseIn {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
    padding: 72px 32px 56px;
    margin: 0 -32px;
    border-radius: 0 0 28px 28px;
    background:
        radial-gradient(ellipse 480px 320px at 18% 0%, rgba(184, 147, 90, 0.12), transparent 70%),
        radial-gradient(ellipse 520px 340px at 100% 10%, rgba(31, 111, 92, 0.10), transparent 70%);
    animation: riseIn .6s ease both;
}

.hero-frame {
    width: 168px;
    height: 168px;
    border-radius: 50%;
    padding: 6px;
    background: linear-gradient(160deg, var(--gold), var(--accent));
    justify-self: end;
}

.hero-photo {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    border: 4px solid var(--paper);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: .14em;
    font-size: .74rem;
    font-weight: 600;
    color: var(--accent);
    margin: 0 0 14px;
}

.eyebrow.center { text-align: center; }

h1.name {
    font-family: var(--serif);
    font-size: 2.9rem;
    font-weight: 600;
    margin: 0 0 10px;
    letter-spacing: -0.01em;
    color: var(--ink);
}

.role {
    color: var(--ink-soft);
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.affiliation {
    color: var(--muted);
    font-size: .92rem;
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.affiliation i { color: var(--gold); }

.statement {
    font-family: var(--serif);
    font-style: italic;
    font-size: 1.2rem;
    line-height: 1.55;
    color: var(--ink);
    max-width: 56ch;
    margin: 0 0 18px;
    border-left: 3px solid var(--gold);
    padding-left: 18px;
}

.bio {
    font-size: .95rem;
    color: var(--ink-soft);
    max-width: 62ch;
}

.btn-row {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--ink);
    text-decoration: none;
    font-size: .84rem;
    font-weight: 500;
    transition: all .2s;
    background: var(--surface);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent-deep);
    background: var(--accent-soft);
    transform: translateY(-1px);
}

.btn-outline.solid {
    background: var(--accent-deep);
    border-color: var(--accent-deep);
    color: #fff;
}

.btn-outline.solid:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* Stat strip */
.stat-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 64px;
}

.stat-cell {
    background: var(--surface);
    padding: 22px 20px;
    text-align: center;
}

.stat-cell strong {
    display: block;
    font-family: var(--serif);
    font-size: 1.5rem;
    color: var(--accent-deep);
    margin-bottom: 4px;
}

.stat-cell span {
    font-size: .78rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .06em;
}

/* Sections */
section {
    margin-bottom: 68px;
}

.section-head {
    text-align: center;
    max-width: 60ch;
    margin: 0 auto 36px;
}

.section-head h2 {
    font-family: var(--serif);
    font-size: 1.7rem;
    font-weight: 600;
    margin: 4px 0 10px;
    color: var(--ink);
}

.section-head p {
    color: var(--muted);
    font-size: .92rem;
    margin: 0;
}

.divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--gold);
    margin: 8px 0 48px;
}

.divider::before,
.divider::after {
    content: '';
    height: 1px;
    width: 64px;
    background: var(--line);
}

/* About layout */
.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 40px;
    align-items: start;
}

.detail-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px 24px;
}

.detail-item dt {
    text-transform: uppercase;
    letter-spacing: .06em;
    font-size: .7rem;
    font-weight: 600;
    color: var(--muted);
    margin-bottom: 3px;
}

.detail-item dd {
    margin: 0;
    font-family: var(--serif);
    font-size: 1rem;
    color: var(--ink);
}

/* Research / focus grid */
.focus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.focus-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}

.focus-card:hover {
    transform: translateY(-3px);
    border-color: var(--gold);
    box-shadow: 0 12px 24px -16px rgba(27, 26, 23, 0.25);
}

.focus-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    margin-bottom: 14px;
}

.focus-card h3 {
    font-family: var(--serif);
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0 0 6px;
    color: var(--ink);
}

.focus-card p {
    font-size: .85rem;
    color: var(--muted);
    margin: 0;
}

/* Teaching preview strip (index.html) */
.teaching-preview {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.pill-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--line);
    color: var(--ink);
    text-decoration: none;
    font-size: .85rem;
    font-weight: 500;
    transition: all .2s;
}

.pill-link:hover {
    border-color: var(--accent);
    color: var(--accent-deep);
    background: var(--accent-soft);
}

.pill-link i { color: var(--gold); }

.see-all {
    text-align: center;
    margin-top: 20px;
}

.see-all a {
    font-size: .85rem;
    font-weight: 600;
    color: var(--accent-deep);
    text-decoration: none;
    border-bottom: 1px solid var(--gold);
    padding-bottom: 2px;
}

/* Contact CTA band */
.contact-band {
    background: linear-gradient(155deg, var(--accent-deep), #0e3a30);
    border-radius: var(--radius);
    padding: 48px 32px;
    text-align: center;
    color: #f4f1e9;
}

.contact-band .eyebrow {
    color: var(--gold);
}

.contact-band h2 {
    font-family: var(--serif);
    font-size: 1.7rem;
    font-weight: 600;
    margin: 4px 0 14px;
    color: #fff;
}

.contact-band p {
    color: #d7e4df;
    font-size: .92rem;
    max-width: 52ch;
    margin: 0 auto 28px;
}

.contact-band .btn-row {
    justify-content: center;
    margin-top: 0;
}

.contact-band .btn-outline {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(244, 241, 233, 0.35);
    color: #f4f1e9;
}

.contact-band .btn-outline:hover {
    background: rgba(244, 241, 233, 0.14);
    border-color: var(--gold);
    color: #fff;
}

/* Course / detail cards (teaching.html) */
.course-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.course-card {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 20px;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}

.course-card:hover {
    transform: translateY(-2px);
    border-color: var(--gold);
    box-shadow: 0 14px 28px -18px rgba(27, 26, 23, 0.28);
}

.course-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.course-body h3 {
    font-family: var(--serif);
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0 0 6px;
    color: var(--ink);
}

.course-body p {
    font-size: .87rem;
    color: var(--muted);
    margin: 0 0 10px;
}

.course-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.badge {
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    padding: 3px 10px;
    border-radius: 999px;
    background: var(--paper-alt);
    color: var(--ink-soft);
}

.course-ref {
    font-size: .8rem;
}

.course-ref a { color: var(--accent-deep); }

.course-cta {
    justify-self: end;
    white-space: nowrap;
}

.course-cta a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .85rem;
    font-weight: 600;
    color: var(--accent-deep);
    text-decoration: none;
    border: 1px solid var(--line);
    padding: 8px 16px;
    border-radius: 999px;
    transition: all .2s;
}

.course-cta a:hover {
    background: var(--accent-deep);
    border-color: var(--accent-deep);
    color: #fff;
}

/* Teaching philosophy */
.principle-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.principle-card {
    padding: 22px;
    border-radius: var(--radius);
    background: var(--paper-alt);
    border-left: 3px solid var(--gold);
}

.principle-card i {
    color: var(--accent-deep);
    margin-bottom: 10px;
    display: block;
    font-size: 1.1rem;
}

.principle-card h3 {
    font-family: var(--serif);
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 6px;
}

.principle-card p {
    font-size: .84rem;
    color: var(--ink-soft);
    margin: 0;
}

/* Course detail page (visdat/pbf/dl) */
.course-page-head {
    padding-top: 56px;
    margin-bottom: 36px;
}

.course-page-head h1.name {
    font-size: 2.2rem;
}

.course-page-head .course-badges {
    margin: 10px 0 18px;
}

.info-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 44px;
}

.info-panel h3 {
    font-family: var(--serif);
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0 0 10px;
    color: var(--ink);
}

.info-panel > p {
    font-size: .88rem;
    color: var(--muted);
    margin: 0 0 18px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
}

.info-cell {
    background: var(--paper-alt);
    border-radius: 10px;
    padding: 14px 16px;
    font-size: .85rem;
    color: var(--ink-soft);
    line-height: 1.5;
}

.info-cell .info-label {
    display: block;
    text-transform: uppercase;
    letter-spacing: .05em;
    font-size: .68rem;
    font-weight: 600;
    color: var(--accent-deep);
    margin-bottom: 5px;
}

.block-title {
    font-family: var(--serif);
    font-size: 1.35rem;
    font-weight: 600;
    margin: 0 0 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--line);
    color: var(--ink);
}

.week-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .2s, box-shadow .2s;
}

.week-card:hover {
    border-color: var(--gold);
    box-shadow: 0 14px 28px -20px rgba(27, 26, 23, 0.3);
}

.week-header {
    background: linear-gradient(135deg, var(--accent-deep), var(--accent));
    color: #fff;
    padding: 16px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.week-number {
    font-size: .75rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 999px;
    white-space: nowrap;
}

.week-title {
    font-family: var(--serif);
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0;
    flex: 1;
    padding: 0 12px;
}

.week-icon {
    font-size: 1.1rem;
    transition: transform .3s;
}

.week-card.active .week-icon {
    transform: rotate(180deg);
}

.week-content {
    padding: 22px;
    display: none;
}

.week-card.active .week-content {
    display: block;
}

.learning-objective {
    background: var(--accent-soft);
    border-left: 3px solid var(--accent);
    padding: 12px 16px;
    margin-bottom: 14px;
    border-radius: 0 10px 10px 0;
    font-size: .88rem;
    color: var(--ink-soft);
}

.topic-list {
    list-style: none;
    padding: 0;
    margin: 0 0 14px;
}

.topic-list li {
    padding: 6px 0 6px 22px;
    position: relative;
    font-size: .88rem;
    color: var(--ink-soft);
}

.topic-list li::before {
    content: '\203A';
    position: absolute;
    left: 0;
    color: var(--gold);
    font-weight: 700;
}

.material-links {
    background: var(--paper-alt);
    border-radius: 10px;
    padding: 14px 16px;
    margin-top: 14px;
}

.material-links h6 {
    font-family: var(--serif);
    font-size: .9rem;
    font-weight: 600;
    margin: 0 0 10px;
    color: var(--ink);
}

.link-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent-deep);
    color: #fff;
    padding: 7px 14px;
    margin: 4px 6px 4px 0;
    border-radius: 999px;
    text-decoration: none;
    font-size: .8rem;
    transition: all .2s;
}

.link-btn:hover {
    background: var(--accent);
    transform: translateY(-1px);
    color: #fff;
}

.assessment-box {
    background: #fbf1de;
    border-left: 3px solid var(--gold);
    padding: 12px 16px;
    border-radius: 0 10px 10px 0;
    font-size: .88rem;
    margin-top: 10px;
    color: var(--ink-soft);
}

@media (max-width: 640px) {
    .week-header {
        flex-wrap: wrap;
    }

    .week-title {
        padding: 0;
        flex-basis: 100%;
        order: 3;
    }
}

/* Footer */
.site-footer {
    text-align: center;
    padding-top: 36px;
    margin-top: 8px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: .8rem;
}

.site-footer .brand-mark {
    margin: 0 auto 14px;
}

@media (max-width: 760px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 48px;
    }

    .hero-frame {
        justify-self: center;
        width: 132px;
        height: 132px;
    }

    .affiliation,
    .statement {
        margin-left: auto;
        margin-right: auto;
    }

    .statement {
        text-align: left;
    }

    .btn-row {
        justify-content: center;
    }

    .site-nav {
        flex-direction: column;
        align-items: flex-start;
    }

    .course-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .course-icon {
        margin: 0 auto;
    }

    .course-cta {
        justify-self: center;
    }
}