:root {
  --bg: #f2ecdf;
  --bg-soft: rgba(255, 248, 238, 0.82);
  --card: rgba(255, 251, 245, 0.78);
  --card-strong: rgba(248, 239, 227, 0.96);
  --ink: #1f1e1a;
  --muted: #5b554b;
  --line: rgba(74, 57, 37, 0.14);
  --accent: #8a2f1b;
  --accent-deep: #542115;
  --accent-soft: #e6b66c;
  --shadow: 0 24px 60px rgba(82, 51, 18, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(230, 182, 108, 0.55), transparent 30%),
    radial-gradient(circle at top right, rgba(138, 47, 27, 0.16), transparent 28%),
    linear-gradient(180deg, #efe4d2 0%, #f7f1e8 50%, #f2ecdf 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(84, 33, 21, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(84, 33, 21, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 85%);
}

a {
  color: inherit;
}

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 20px 0 64px;
}

.hero,
.section {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.hero {
  padding: 22px;
  background:
    linear-gradient(145deg, rgba(255, 251, 245, 0.92), rgba(245, 230, 209, 0.8)),
    var(--bg-soft);
}

.hero::after,
.section::after {
  content: "";
  position: absolute;
  inset: auto -10% -35% auto;
  width: 360px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(230, 182, 108, 0.32), transparent 68%);
  pointer-events: none;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 10px 24px;
}

.brand,
.nav-links a,
.button {
  text-decoration: none;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.nav-links a {
  color: var(--muted);
  font-weight: 600;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: start;
  min-height: auto;
  padding: 8px 10px 10px;
}

.eyebrow,
.section-label,
.meta-label,
.card-kicker,
.day-label {
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 0.96;
}

h1,
h2 {
  font-family: "Instrument Serif", serif;
  font-weight: 400;
}

h1 {
  max-width: none;
  margin-top: 12px;
  font-size: clamp(3.6rem, 7vw, 7rem);
}

.lede {
  max-width: none;
  margin: 16px 0 0;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--muted);
}

.hero-meta,
.details-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.hero-meta strong,
.details-panel strong {
  display: block;
  margin-top: 7px;
  font-size: 1rem;
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
}

.button-primary {
  background: var(--accent);
  color: #fff8ef;
}

.button-secondary {
  border-color: rgba(84, 33, 21, 0.2);
  background: rgba(255, 252, 247, 0.65);
}

.hero-card,
.panel,
.speaker-card,
.schedule-day,
.contact-panel {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card);
  backdrop-filter: blur(10px);
}

.hero-card {
  padding: 24px;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: end;
}

.hero-card p {
  margin: 14px 0 0;
  line-height: 1.7;
  color: var(--muted);
}

.highlight-list {
  margin: 22px 0 0;
  padding-left: 18px;
  color: var(--ink);
  line-height: 1.8;
}

.section {
  margin-top: 22px;
  padding: 32px;
  background: linear-gradient(160deg, rgba(255, 252, 247, 0.8), rgba(246, 239, 229, 0.85));
}

.section-heading {
  display: grid;
  gap: 8px;
  margin-bottom: 22px;
}

h2 {
  font-size: clamp(2.4rem, 4vw, 4rem);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 20px;
}

.panel,
.contact-panel {
  padding: 24px;
}

.panel p,
.contact-panel p,
.schedule-item p,
.speaker-card p,
.speaker-card a {
  margin: 0;
  line-height: 1.7;
  color: var(--muted);
}

.panel p + p {
  margin-top: 16px;
}

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

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.speaker-card {
  padding: 18px;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.speaker-card:hover {
  transform: translateY(-3px);
  border-color: rgba(138, 47, 27, 0.22);
  background: rgba(255, 248, 240, 0.92);
}

.speaker-card h3 {
  font-size: 1.1rem;
  line-height: 1.2;
}

.speaker-card p {
  margin-top: 8px;
}

.speaker-card a {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.95rem;
  word-break: break-word;
}

.sponsor-card {
  display: block;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, rgba(255, 250, 244, 0.96), rgba(242, 232, 215, 0.94));
  box-shadow: var(--shadow);
}

.sponsor-copy h3 {
  font-size: 1.25rem;
  line-height: 1.1;
}

.sponsor-copy p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.schedule-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.program-note {
  max-width: 54ch;
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.schedule-day {
  padding: 22px;
  background: linear-gradient(180deg, rgba(255, 250, 244, 0.95), rgba(244, 236, 223, 0.9));
}

.day-header {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}

.day-header h3 {
  font-size: 1.7rem;
}

.schedule-items {
  display: grid;
  gap: 14px;
}

.schedule-item {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 20px;
  padding-top: 14px;
  border-top: 1px solid rgba(84, 33, 21, 0.1);
}

.time {
  font-weight: 800;
  color: var(--accent-deep);
}

.schedule-item strong {
  display: block;
  margin-bottom: 4px;
}

.session-item {
  padding-top: 20px;
}

.session-title {
  color: var(--accent);
  font-size: 1.05rem;
}

.talk-list {
  display: grid;
  margin-top: 12px;
}

.talk {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid rgba(84, 33, 21, 0.1);
}

.talk:first-child {
  border-top: none;
}

.talk-time {
  color: var(--accent-deep);
  font-size: 0.88rem;
  font-weight: 800;
}

.talk-content h4 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.35;
}

.talk-content h4 span {
  display: inline;
  margin-left: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
}

.talk-title {
  margin-top: 7px !important;
  color: var(--ink) !important;
  font-weight: 700;
  line-height: 1.45 !important;
}

.talk-title.forthcoming {
  color: var(--muted) !important;
  font-style: italic;
  font-weight: 500;
}

.talk-abstract {
  margin-top: 10px;
  border: 1px solid rgba(84, 33, 21, 0.1);
  border-radius: 10px;
  background: rgba(255, 252, 247, 0.66);
}

.talk-abstract summary {
  padding: 10px 12px;
  color: var(--accent-deep);
  cursor: pointer;
  font-size: 0.86rem;
  font-weight: 800;
}

.talk-abstract[open] summary {
  border-bottom: 1px solid rgba(84, 33, 21, 0.1);
}

.talk-abstract p {
  padding: 12px;
  font-size: 0.9rem;
}

.talk-abstract .abstract-meta {
  margin: 0 12px;
  padding: 12px 0 0;
  border-top: 1px solid rgba(84, 33, 21, 0.1);
  font-size: 0.86rem;
}

.talk-abstract .abstract-meta-only {
  border-top: none;
}

.abstract-meta span {
  color: var(--ink);
  font-weight: 800;
}

.related-work {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin: 10px 12px 12px;
  font-size: 0.86rem;
}

.related-work span {
  color: var(--ink);
  font-weight: 800;
}

.related-work a {
  color: var(--accent-deep);
  font-weight: 800;
}

.paper-link {
  display: inline-block;
  margin: 10px 12px 12px;
  color: var(--accent-deep);
  font-size: 0.86rem;
  font-weight: 800;
}

.break {
  background: rgba(230, 182, 108, 0.1);
  border-radius: var(--radius-sm);
  padding: 14px;
  border-top: none;
}

.contact-section {
  margin-bottom: 24px;
}

.contact-panel a {
  color: var(--accent-deep);
  font-weight: 700;
}

.hero,
.section,
.speaker-card,
.schedule-day,
.sponsor-card {
  animation: rise-in 700ms ease both;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .hero-grid,
  .intro-grid,
  .schedule-grid,
  .speaker-grid,
  .sponsor-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    min-height: auto;
  }

  h1 {
    max-width: none;
  }

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

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 16px, 1180px);
    padding-top: 8px;
  }

  .hero,
  .section {
    padding: 18px;
    border-radius: 22px;
  }

  .hero-meta,
  .details-panel,
  .schedule-item {
    grid-template-columns: 1fr;
  }

  .schedule-item {
    gap: 8px;
  }

  .talk {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .talk-content h4 span {
    display: block;
    margin: 3px 0 0;
  }

  .nav-links {
    gap: 12px;
  }

  h1 {
    font-size: clamp(3rem, 16vw, 4.6rem);
  }
}