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

:root {
    --bg: #f7f4ee;
    --surface: #fffdf8;
    --ink: #1e2732;
    --muted: #62707f;
    --line: #ded6c9;
    --accent: #294f7a;
    --accent-dark: #193654;
    --accent-soft: #e7edf3;
    --max-width: 1120px;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100%;
    background: var(--bg);
    color: var(--ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 1rem;
    line-height: 1.65;
    overflow-y: scroll;
}

body.has-scrolled .back-to-top {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

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

p {
    color: var(--muted);
}

strong {
    color: var(--ink);
    font-weight: 650;
}

.site-header,
main,
.site-footer {
    width: min(calc(100% - 2rem), var(--max-width));
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 1.25rem 0;
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(14px);
}

.site-logo {
    display: inline-flex;
    flex-direction: column;
    gap: 0.05rem;
    color: var(--ink);
    font-weight: 720;
    letter-spacing: -0.03em;
    line-height: 1;
}

.site-logo span {
    font-size: 1.05rem;
}

.site-logo small {
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 650;
    letter-spacing: 0.08em;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.35rem 1rem;
    color: var(--muted);
    font-size: 0.94rem;
}

.site-nav a {
    border-bottom: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--accent-dark);
    border-bottom-color: currentColor;
}

.back-to-top {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.25rem;
    border-bottom: 0;
    color: var(--accent-dark);
    font-size: 1.25rem;
    font-weight: 900;
    line-height: 1;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.25rem);
    transition: opacity 160ms ease, transform 160ms ease, color 160ms ease;
}

.back-to-top:hover,
.back-to-top:focus-visible {
    border-bottom: 0;
    color: var(--accent);
}

.hero {
    position: relative;
    isolation: isolate;
    display: grid;
    align-content: center;
    padding: 4.5rem 0 4rem;
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0 calc((50vw - 50%) * -1);
    z-index: -1;
    background: linear-gradient(90deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 68%, transparent) 48%, color-mix(in srgb, var(--bg) 86%, transparent) 100%);
}

.hero-bg-image {
    position: absolute;
    inset: 0 calc((50vw - 50%) * -1);
    z-index: -2;
    display: block;
    width: calc(100% + ((50vw - 50%) * 2));
    height: 100%;
    object-fit: cover;
    object-position: center 38%;
    opacity: 0.58;
    filter: grayscale(0.25) saturate(0.85);
}

.hero-copy {
    max-width: 920px;
}

.eyebrow,
.section-label {
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 720;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero h1 {
    max-width: 900px;
    margin-top: 0.7rem;
    color: var(--ink);
    font-size: clamp(2.9rem, 7.2vw, 5.5rem);
    font-weight: 620;
    letter-spacing: -0.055em;
    line-height: 0.98;
}

.hero-subtitle {
    max-width: 720px;
    margin-top: 1.4rem;
    color: var(--ink);
    font-size: clamp(1.25rem, 3vw, 2.2rem);
    font-weight: 560;
    letter-spacing: -0.04em;
    line-height: 1.14;
}

.hero-details {
    display: grid;
    gap: 0.15rem;
    max-width: 500px;
    margin-top: 2rem;
    padding-left: 1rem;
    border-left: 3px solid var(--accent);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2.5rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.9rem;
    padding: 0.75rem 1.1rem;
    border: 1px solid var(--accent);
    border-radius: 999px;
    background: var(--accent);
    color: #ffffff;
    font-size: 0.94rem;
    font-weight: 650;
}

.button:hover,
.button:focus-visible {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
}

.button-secondary {
    background: transparent;
    color: var(--accent-dark);
    cursor: default;
}

.section {
    padding: 5.5rem 0;
    border-bottom: 1px solid var(--line);
}

.section-narrow {
    max-width: 890px;
}

.section-heading {
    max-width: 720px;
    margin-bottom: 2rem;
}

.section h2 {
    margin-top: 0.45rem;
    color: var(--ink);
    font-size: clamp(1.9rem, 4.3vw, 3.7rem);
    font-weight: 720;
    letter-spacing: -0.065em;
    line-height: 1.04;
}

.section h3 {
    color: var(--ink);
    font-size: 1rem;
    letter-spacing: -0.02em;
}

.prose {
    display: grid;
    gap: 1.1rem;
    margin-top: 1.6rem;
}

.prose p,
.notice p,
.venue p,
.venue-address {
    max-width: 72ch;
}

.venue-address {
    margin-top: 1rem;
    color: var(--muted);
    font-style: normal;
}

.text-link {
    display: inline-flex;
    margin-top: 0.75rem;
    color: var(--accent-dark);
    font-weight: 650;
    border-bottom: 1px solid currentColor;
}

.text-link:hover,
.text-link:focus-visible {
    color: var(--accent);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    list-style: none;
}

.tag-list li {
    padding: 0.55rem 0.8rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    color: var(--ink);
    font-size: 0.93rem;
    font-weight: 620;
}

.date-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

.date-grid article {
    min-height: 11rem;
    padding: 1.25rem;
    background: var(--surface);
}

.date-grid span {
    display: block;
    margin-bottom: 1.1rem;
    color: var(--accent);
    font-size: 0.92rem;
    font-weight: 760;
}

.split {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 4rem;
    align-items: start;
}

.schedule-grid,
.committee-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.schedule-grid article,
.committee-grid > section {
    padding: 1.5rem;
    border: 1px solid var(--line);
    background: var(--surface);
}

.schedule-grid h3,
.committee-grid h3 {
    margin-bottom: 1rem;
    color: var(--accent-dark);
    font-size: 1.1rem;
}

.schedule-grid ul,
.plain-list,
.people-list {
    list-style: none;
}

.schedule-grid li,
.plain-list li {
    position: relative;
    padding-left: 1.1rem;
    color: var(--muted);
}

.schedule-grid li + li,
.plain-list li + li {
    margin-top: 0.45rem;
}

.schedule-grid li::before,
.plain-list li::before {
    content: "+";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 760;
}

.plain-list {
    display: grid;
    gap: 0.45rem;
    align-self: start;
    columns: 2;
}

.people-list {
    display: grid;
    gap: 1rem;
}

.people-list li {
    display: grid;
    gap: 0.1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--line);
}

.people-list li:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.people-list span {
    color: var(--muted);
    font-size: 0.94rem;
}

.notice {
    padding: 3rem;
    border: 1px solid var(--line);
    background: var(--accent-soft);
}

.notice + .venue {
    margin-top: 5.5rem;
}

.venue {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
}

.date-line {
    margin-top: 1rem;
    color: var(--accent-dark);
    font-weight: 700;
}

.site-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 2rem;
    padding: 2rem 0;
    font-size: 0.9rem;
}

.footer-affiliation {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.faculty-mark {
    display: block;
    flex: 0 0 auto;
    width: 2.75rem;
    height: 2.75rem;
    overflow: hidden;
}

.faculty-mark img {
    display: block;
    width: auto;
    height: 100%;
    max-width: none;
}

.site-footer p {
    color: var(--muted);
}

@media (max-width: 860px) {
    .site-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 1rem;
    }

    .site-nav {
        justify-content: flex-start;
    }

    .hero {
        min-height: auto;
        padding: 3.5rem 0;
    }

    .date-grid,
    .schedule-grid,
    .committee-grid,
    .split {
        grid-template-columns: 1fr 1fr;
    }

    .split {
        gap: 1rem;
    }

    .venue {
        flex-direction: column;
    }
}

@media (max-width: 620px) {
    .site-header,
    main,
    .site-footer {
        width: min(calc(100% - 1.25rem), var(--max-width));
    }

    .site-nav {
        gap: 0.35rem 0.75rem;
        font-size: 0.9rem;
    }

    .hero h1 {
        font-size: clamp(2.55rem, 13.5vw, 3.75rem);
        letter-spacing: -0.04em;
        line-height: 1.02;
    }

    .hero-actions,
    .button {
        width: 100%;
    }

    .section {
        padding: 4rem 0;
    }

    .date-grid,
    .schedule-grid,
    .committee-grid,
    .split {
        grid-template-columns: 1fr;
    }

    .date-grid article {
        min-height: auto;
    }

    .notice {
        padding: 1.5rem;
    }

    .notice + .venue {
        margin-top: 4rem;
    }
}