:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #536171;
  --line: #d9e0e7;
  --paper: #fbfaf7;
  --panel: #ffffff;
  --teal: #0f766e;
  --coral: #c6533d;
  --gold: #b88935;
  --graphite: #26313d;
  --shadow: 0 16px 40px rgba(23, 32, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

a {
  color: var(--teal);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(217, 224, 231, 0.84);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: conic-gradient(from 180deg, var(--teal), #74b8aa, var(--coral), var(--gold), var(--teal));
  box-shadow: inset 0 0 0 6px rgba(255, 255, 255, 0.64);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  color: var(--graphite);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 700;
  padding: 10px 12px;
  border-radius: 6px;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: #edf5f3;
  color: #075f58;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 6px;
  padding: 8px 10px;
  font: inherit;
}

.hero {
  min-height: calc(100svh - 68px);
  display: grid;
  align-items: end;
  position: relative;
  overflow: hidden;
  color: white;
  background: #17202a;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(16, 24, 32, 0.9) 0%, rgba(16, 24, 32, 0.78) 34%, rgba(16, 24, 32, 0.38) 66%, rgba(16, 24, 32, 0.16) 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  z-index: 2;
  height: 18vh;
  background: linear-gradient(0deg, var(--paper), rgba(251, 250, 247, 0));
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center right;
}

.hero-inner {
  position: relative;
  z-index: 3;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 96px 0 112px;
}

.eyebrow {
  margin: 0 0 16px;
  color: #a9ddd6;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  max-width: 800px;
  margin: 0;
  font-size: clamp(2.7rem, 8vw, 5.8rem);
}

.workshop-hero h1 {
  max-width: 920px;
  font-size: clamp(2.35rem, 5.6vw, 4.45rem);
}

h2 {
  margin: 0 0 20px;
  font-size: clamp(1.65rem, 4vw, 2.55rem);
}

h3 {
  margin: 0 0 8px;
  font-size: 1.06rem;
}

.hero-copy {
  max-width: 680px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.05rem, 2vw, 1.22rem);
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: var(--teal);
  color: white;
  font-weight: 800;
  text-decoration: none;
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.12);
}

.button.light {
  background: #edf5f3;
  color: #075f58;
}

.section {
  padding: 72px 0;
}

.section.alt {
  background: #f0f4f1;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 48px;
  align-items: start;
}

.lead {
  margin-top: 0;
  font-size: 1.13rem;
  color: var(--graphite);
}

.meta-list {
  display: grid;
  gap: 14px;
  margin: 0;
}

.meta-item {
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--teal);
  background: var(--panel);
  box-shadow: 0 8px 24px rgba(23, 32, 42, 0.05);
}

.meta-item dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.meta-item dd {
  margin: 0;
  font-weight: 750;
}

.topic-grid,
.archive-grid,
.organizer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.paper-type-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.topic,
.archive-card,
.person,
.committee-member,
.deadline,
.schedule-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(23, 32, 42, 0.05);
}

.topic p,
.archive-card p,
.person p,
.committee-member p {
  margin: 0;
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 12px;
}

.schedule-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.time {
  color: var(--coral);
  font-weight: 850;
}

.deadline-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.deadline strong {
  display: block;
  color: var(--coral);
  font-size: 1.35rem;
}

.person small,
.archive-card small {
  display: block;
  margin-bottom: 8px;
  color: var(--coral);
  font-weight: 850;
}

.person {
  min-height: 164px;
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.organizer-photo {
  display: block;
  width: 112px;
  min-width: 112px;
  max-width: 112px;
  height: 112px;
  min-height: 112px;
  max-height: 112px;
  aspect-ratio: 1 / 1;
  margin: 0;
  border-radius: 50%;
  background: #edf5f3;
  border: 1px solid rgba(15, 118, 110, 0.22);
  overflow: hidden;
  line-height: 0;
}

.organizer-photo img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center center;
}

.person-info {
  min-width: 0;
}

.person-info h3 {
  margin-bottom: 12px;
}

.person-info p + p {
  margin-top: 4px;
}

.committee-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.committee-member {
  min-height: 112px;
}

.committee-member h3 {
  margin-bottom: 10px;
}

.submission-panel {
  width: 100%;
  margin-top: 24px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 8px 24px rgba(23, 32, 42, 0.05);
}

.submission-panel h3 {
  margin-bottom: 18px;
}

.submission-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 18px 24px;
  margin: 0;
}

.submission-details div {
  min-width: 0;
}

.submission-details dt {
  margin-bottom: 4px;
  color: var(--coral);
  font-size: 0.82rem;
  font-weight: 850;
  text-transform: uppercase;
}

.submission-details dd {
  margin: 0;
  color: var(--muted);
}

.archive-list {
  display: grid;
  gap: 14px;
}

.archive-entry {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr) auto;
  gap: 24px;
  align-items: start;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 8px 24px rgba(23, 32, 42, 0.05);
}

.archive-year {
  color: var(--coral);
  font-size: 0.86rem;
  font-weight: 850;
  text-transform: uppercase;
}

.archive-main h2 {
  margin-bottom: 8px;
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
}

.archive-main > p {
  margin: 0 0 16px;
  color: var(--muted);
}

.archive-facts {
  display: grid;
  gap: 8px;
  margin: 0;
}

.archive-facts div {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
}

.archive-facts dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.archive-facts dd {
  margin: 0;
}

.footer {
  padding: 36px 0;
  background: var(--graphite);
  color: rgba(255, 255, 255, 0.78);
}

.footer a {
  color: #a9ddd6;
}

.page-hero {
  padding: 76px 0 52px;
  background: #edf5f3;
  border-bottom: 1px solid var(--line);
}

.page-hero p {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.notice {
  border-left: 4px solid var(--gold);
  background: #fff8e9;
  padding: 16px 18px;
  margin-top: 24px;
}

.two-column {
  columns: 2 320px;
  column-gap: 40px;
  padding-left: 20px;
}

@media (max-width: 820px) {
  .nav {
    min-height: 62px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: 62px;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

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

  .hero {
    min-height: 720px;
  }

  .workshop-hero {
    min-height: 660px;
  }

  .hero-inner {
    padding: 84px 0 96px;
  }

  .workshop-hero h1 {
    font-size: clamp(2.15rem, 10vw, 3.2rem);
  }

  .intro-grid,
  .topic-grid,
  .paper-type-grid,
  .archive-grid,
  .organizer-grid,
  .committee-grid,
  .deadline-grid,
  .archive-entry,
  .submission-details,
  .schedule-item {
    grid-template-columns: 1fr;
  }

  .person {
    grid-template-columns: 88px minmax(0, 1fr);
    min-height: 124px;
    gap: 14px;
  }

  .organizer-photo {
    width: 88px;
    min-width: 88px;
    max-width: 88px;
    height: 88px;
    min-height: 88px;
    max-height: 88px;
  }

  .archive-facts div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .section {
    padding: 52px 0;
  }
}