:root {
    --bg: #f5efe4;
    --bg-soft: #efe6d6;
    --surface: rgba(255, 250, 242, 0.78);
    --surface-strong: #fffaf1;
    --text: #201815;
    --text-soft: #5d4c43;
    --line: rgba(64, 45, 35, 0.12);
    --accent: #c45b31;
    --accent-strong: #8f3517;
    --accent-soft: #ffd8bf;
    --shadow: 0 20px 50px rgba(56, 35, 20, 0.08);
    --radius: 28px;
    --font-display: "Manrope", sans-serif;
    --font-sans: "Manrope", sans-serif;
}

body[data-theme="dark"] {
    --bg: #0f1720;
    --bg-soft: #172230;
    --surface: rgba(18, 29, 41, 0.82);
    --surface-strong: #162433;
    --text: #edf3fa;
    --text-soft: #98aac0;
    --line: rgba(202, 219, 236, 0.12);
    --accent: #f59d65;
    --accent-strong: #ffd1ae;
    --accent-soft: rgba(245, 157, 101, 0.16);
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(196, 91, 49, 0.18), transparent 32%),
        radial-gradient(circle at top right, rgba(69, 151, 179, 0.18), transparent 26%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

img,
canvas {
    max-width: 100%;
}

.container {
    width: min(1160px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(16px);
    background: rgba(0, 0, 0, 0.02);
}

.nav-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 0;
}

.brand {
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.16em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.nav-links a,
.theme-btn,
.menu-btn {
    font: inherit;
    font-size: 0.95rem;
    color: var(--text);
    background: transparent;
    border: 0;
    cursor: pointer;
}

.menu-btn {
    display: none;
}

.hero {
    padding: 72px 0 40px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.95fr;
    gap: 28px;
    align-items: stretch;
}

.hero-copy,
.hero-card,
.card,
.metric-card {
    border: 1px solid var(--line);
    background: var(--surface);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
}

.hero-copy {
    padding: 42px;
}

.eyebrow,
.label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
}

.hero-copy h1,
.section-heading h2,
.card h3,
.hero-card h2 {
    font-family: var(--font-display);
    line-height: 0.98;
    margin: 14px 0;
    font-variant-ligatures: none;
    font-feature-settings: "liga" 0, "clig" 0;
    text-rendering: optimizeLegibility;
}

.hero-copy h1 {
    font-size: clamp(3rem, 6vw, 6rem);
    max-width: 9ch;
}

.hero-copy h1 span {
    color: var(--accent);
    font-style: normal;
}

.hero-text {
    max-width: 60ch;
    font-size: 1.06rem;
    line-height: 1.8;
    color: var(--text-soft);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 28px 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    border: 1px solid var(--line);
    font-weight: 700;
    transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: transparent;
}

.btn-secondary {
    background: transparent;
}

.hero-points,
.simple-list,
.publication-list {
    margin: 0;
    padding-left: 18px;
}

.hero-points li,
.simple-list li,
.publication-list li {
    margin: 0 0 10px;
    color: var(--text-soft);
    line-height: 1.65;
}

.hero-card {
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 24px;
    background:
        linear-gradient(160deg, var(--surface-strong), var(--surface)),
        var(--surface);
}

.hero-photo {
    width: min(100%, 280px);
    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: center top;
    border-radius: 30px;
    border: 1px solid var(--line);
    background: var(--surface-strong);
    box-shadow: 0 20px 40px rgba(196, 91, 49, 0.18);
}

.hero-card-meta h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    margin-bottom: 8px;
}

.hero-card-meta p {
    margin: 0;
    color: var(--text-soft);
    line-height: 1.7;
}

.stat-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.stat-strip div,
.metric-card {
    padding: 16px;
    border-radius: 22px;
    background: var(--accent-soft);
}

.stat-strip strong,
.metric-card strong {
    display: block;
    font-size: 1.8rem;
    margin-bottom: 4px;
}

.stat-strip span,
.metric-card span,
.metric-card p {
    color: var(--text-soft);
}

.section {
    padding: 40px 0 28px;
}

.section-soft {
    position: relative;
}

.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 18px;
    margin-bottom: 24px;
}

.section-heading h2 {
    font-size: clamp(2rem, 4vw, 3.3rem);
}

.bento-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 20px;
}

.card {
    padding: 28px;
}

.card-large {
    grid-row: span 2;
}

.card-accent {
    background:
        linear-gradient(180deg, var(--accent-soft), var(--surface));
}

.tag-cloud,
.profile-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-cloud span,
.profile-links a {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--surface-strong);
    font-size: 0.92rem;
}

.timeline {
    display: grid;
    gap: 18px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 16px;
    align-items: start;
}

.timeline-year {
    font-weight: 800;
    color: var(--accent);
    padding-top: 18px;
}

.timeline-card h3 {
    font-size: 1.4rem;
}

.two-column,
.pub-layout,
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.metrics-grid,
.project-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.muted {
    color: var(--text-soft);
}

.publication-list {
    padding-left: 22px;
}

.publication-list a {
    color: var(--accent);
    font-weight: 700;
}

.publication-table-wrap {
    overflow-x: auto;
}

.publication-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

.publication-table th,
.publication-table td {
    padding: 16px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--line);
}

.publication-table th {
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
}

.publication-table td {
    color: var(--text-soft);
    line-height: 1.55;
}

.publication-table strong {
    color: var(--text);
}

.quartile {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 32px;
    padding: 0 10px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-weight: 800;
}

.inline-link {
    display: inline-flex;
    margin-top: 14px;
    color: var(--accent);
    font-weight: 700;
}

.project-grid .card h3 {
    font-size: 1.35rem;
}

.contact-link {
    display: inline-block;
    margin-top: 10px;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent);
    word-break: break-word;
}

.site-footer {
    padding: 28px 0 44px;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: var(--text-soft);
    border-top: 1px solid var(--line);
    padding-top: 24px;
}

@media (max-width: 980px) {
    .hero-grid,
    .bento-grid,
    .metrics-grid,
    .project-grid,
    .contact-grid,
    .two-column,
    .pub-layout {
        grid-template-columns: 1fr;
    }

    .stat-strip {
        grid-template-columns: 1fr;
    }

    .nav-links {
        position: absolute;
        top: 72px;
        right: 16px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        min-width: 220px;
        border-radius: 24px;
        padding: 16px;
    }

    .nav-links.open {
        display: flex;
    }

    .menu-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 44px;
        padding: 0 14px;
        border-radius: 999px;
        border: 1px solid var(--line);
        background: var(--surface);
    }
}

@media (max-width: 640px) {
    .hero-copy,
    .hero-card,
    .card {
        padding: 22px;
        border-radius: 24px;
    }

    .container {
        width: min(100% - 20px, 1160px);
    }

    .timeline-item {
        grid-template-columns: 1fr;
    }

    .timeline-year {
        padding-top: 0;
    }

    .footer-inner,
    .section-heading {
        flex-direction: column;
        align-items: start;
    }
}