:root {
    --bg: #f3f0e8;
    --surface: #fffdf8;
    --surface-strong: #ffffff;
    --text: #1d2430;
    --muted: #5d6675;
    --line: #d6deea;
    --accent: #005f73;
    --accent-dark: #0a3640;
    --accent-soft: #d9eef1;
    --shadow: 0 20px 45px rgba(21, 32, 50, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Avenir Next", "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top, rgba(255, 255, 255, 0.8), transparent 28%),
        linear-gradient(180deg, #eef7f8 0%, var(--bg) 28%, #f7f2ea 100%);
    color: var(--text);
    line-height: 1.65;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    color: var(--accent-dark);
}

.hero {
    padding: 72px 20px 36px;
    background:
        linear-gradient(135deg, rgba(0, 95, 115, 0.94), rgba(14, 52, 63, 0.97)),
        linear-gradient(135deg, #005f73, #0a3640);
    color: #f7fbfc;
}

.hero-inner,
main,
footer {
    width: min(1080px, calc(100% - 32px));
    margin: 0 auto;
}

.eyebrow {
    margin: 0 0 10px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.8rem;
    color: rgba(247, 251, 252, 0.76);
}

.hero h1 {
    margin: 0;
    max-width: 11ch;
    font-size: clamp(2.8rem, 7vw, 5.2rem);
    line-height: 0.97;
    letter-spacing: -0.04em;
}

.hero-copy {
    max-width: 700px;
    margin: 20px 0 28px;
    font-size: 1.12rem;
    color: rgba(247, 251, 252, 0.88);
}

nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 0;
}

nav a {
    display: inline-block;
    padding: 9px 14px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
    transition: transform 0.2s ease, background-color 0.2s ease;
}

nav a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.16);
    transform: translateY(-1px);
}

main {
    padding: 28px 0 56px;
}

section {
    margin: 22px 0;
    padding: 28px;
    background: rgba(255, 253, 248, 0.9);
    border: 1px solid rgba(214, 222, 234, 0.9);
    border-radius: 28px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(8px);
}

.section-heading {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px 16px;
    margin-bottom: 18px;
}

.section-heading h2 {
    margin: 0;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    letter-spacing: -0.04em;
}

.section-kicker {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.section-intro,
section p {
    margin-top: 0;
    color: var(--muted);
    font-size: 1.04rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 28px;
    align-items: center;
}

.profile-container {
    display: flex;
    justify-content: center;
}

.profile-photo {
    width: 190px;
    height: 190px;
    object-fit: cover;
    border-radius: 24px;
    border: 5px solid rgba(255, 255, 255, 0.88);
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.12);
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.button:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 20px rgba(10, 54, 64, 0.1);
}

.button.primary {
    color: #ffffff;
    background: var(--accent);
}

.button.primary:hover {
    color: #ffffff;
    background: var(--accent-dark);
}

.button.secondary {
    color: var(--accent-dark);
    background: var(--accent-soft);
}

.publication-list {
    display: grid;
    gap: 10px;
}

.publication-card {
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface-strong);
}

.publication-year {
    margin: 0 0 4px;
    color: var(--accent);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.publication-card h3 {
    margin: 0 0 4px;
    font-size: 1.08rem;
    line-height: 1.3;
}

.publication-meta {
    margin: 0 0 8px;
    color: var(--muted);
}

.publication-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.publication-links a {
    font-weight: 600;
}

.detail-list {
    display: grid;
    gap: 10px;
}

.detail-card {
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface-strong);
}

.detail-card h3 {
    margin: 0 0 4px;
    font-size: 1.08rem;
    line-height: 1.3;
}

.detail-meta {
    margin: 0 0 8px;
    color: var(--muted);
    font-size: 0.96rem;
}

.compact-list {
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
}

.compact-list li + li {
    margin-top: 6px;
}

.paper-page {
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
}

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

.paper-title {
    margin: 0 0 12px;
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.paper-authors,
.paper-meta,
.paper-abstract {
    max-width: 70ch;
}

.paper-authors {
    margin-bottom: 8px;
    color: var(--text);
    font-size: 1.08rem;
}

.paper-meta {
    margin-bottom: 18px;
    color: var(--muted);
}

.paper-abstract {
    color: var(--muted);
    font-size: 1.05rem;
}

footer {
    padding: 0 0 36px;
    text-align: center;
    color: var(--muted);
}

@media (max-width: 720px) {
    .hero {
        padding-top: 56px;
    }

    section {
        padding: 22px;
        border-radius: 22px;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .profile-photo {
        width: 160px;
        height: 160px;
    }
}