:root {
  --ink: #102a43;
  --ink-soft: #334e68;
  --paper: #f8f5ee;
  --paper-strong: #fffdf8;
  --line: #d8d2c5;
  --gold: #b57a20;
  --gold-light: #e6b85c;
  --teal: #2b7a78;
  --white: #fff;
  --radius: 18px;
  --shadow: 0 16px 50px rgba(16, 42, 67, 0.1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(230, 184, 92, 0.18), transparent 24rem),
    radial-gradient(circle at 86% 28%, rgba(43, 122, 120, 0.1), transparent 26rem),
    var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

a { color: inherit; }

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--gold-light);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  top: -80px;
  left: 1rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  color: var(--white);
  background: var(--ink);
  border-radius: 8px;
}

.skip-link:focus { top: 1rem; }

.shell {
  width: min(1180px, calc(100% - 2.4rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(16, 42, 67, 0.12);
  background: rgba(248, 245, 238, 0.92);
  backdrop-filter: blur(14px);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 750;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand img { width: 38px; height: 38px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.92rem;
}

.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--gold); }

.chat-link {
  padding: 0.55rem 0.9rem;
  color: var(--white);
  background: var(--ink);
  border-radius: 999px;
}

.nav-links .chat-link:hover { color: var(--white); background: var(--ink-soft); }

.hero {
  min-height: 660px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(290px, 0.65fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
  padding: 6.5rem 0 5.5rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

h1, h2, h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(3.25rem, 7vw, 6.6rem);
}

h1 span { color: var(--teal); }

.hero-copy {
  max-width: 720px;
  margin: 1.7rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 1.5vw, 1.28rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.8rem 1.15rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(16, 42, 67, 0.14); }
.button.primary { color: var(--white); background: var(--ink); }
.button.secondary { background: rgba(255, 255, 255, 0.45); }

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 2.2rem;
  color: var(--white);
  background: var(--ink);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero-card::before {
  position: absolute;
  width: 280px;
  height: 280px;
  right: -140px;
  bottom: -140px;
  content: "";
  border: 1px solid rgba(230, 184, 92, 0.35);
  border-radius: 50%;
  box-shadow: 0 0 0 42px rgba(230, 184, 92, 0.07), 0 0 0 84px rgba(230, 184, 92, 0.04);
}

.hero-card p { position: relative; margin: 0; }
.hero-card .label { color: var(--gold-light); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.hero-card .date { margin-top: 0.4rem; font-family: Georgia, serif; font-size: 2rem; line-height: 1.15; }
.hero-card hr { position: relative; margin: 1.5rem 0; border: 0; border-top: 1px solid rgba(255, 255, 255, 0.2); }
.hero-card .place { color: #d9e2ec; }

.section { padding: 5.5rem 0; }
.section.alt { background: rgba(255, 253, 248, 0.72); border-block: 1px solid rgba(16, 42, 67, 0.08); }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(260px, 0.55fr);
  align-items: end;
  gap: 2rem;
  margin-bottom: 2.6rem;
}

h2 { margin: 0; font-size: clamp(2.35rem, 5vw, 4.3rem); }
.section-intro { margin: 0; color: var(--ink-soft); }

.week-grid, .cards, .faculty-grid, .prep-grid {
  display: grid;
  gap: 1rem;
}

.week-grid { grid-template-columns: 1fr 1fr; }
.week-card, .material-card, .prep-card {
  background: var(--paper-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 8px 30px rgba(16, 42, 67, 0.05);
}

.week-card { padding: 2rem; }
.week-card h3 { margin: 0.35rem 0 0.65rem; font-size: 1.65rem; }
.week-card p { margin: 0; color: var(--ink-soft); }
.week-card .week-number { color: var(--teal); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }

.day {
  display: grid;
  grid-template-columns: 145px 1fr;
  gap: 1.4rem;
  padding: 1.6rem 0;
  border-top: 1px solid var(--line);
}

.day:first-child { border-top: 0; padding-top: 0; }
.day-label { font-weight: 800; }
.day-label span { display: block; color: var(--ink-soft); font-size: 0.86rem; font-weight: 500; }
.sessions { display: grid; gap: 0.8rem; }
.session { display: grid; grid-template-columns: 125px 1fr auto; gap: 1rem; align-items: baseline; }
.session time { color: var(--teal); font-variant-numeric: tabular-nums; font-weight: 750; }
.session strong { font-weight: 760; }
.session em { color: var(--ink-soft); font-size: 0.9rem; font-style: normal; text-align: right; }

.cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.material-card { display: flex; flex-direction: column; min-height: 255px; padding: 1.6rem; }
.material-card .number { color: var(--gold); font-family: Georgia, serif; font-size: 2rem; }
.material-card h3 { margin: 0.6rem 0; font-size: 1.42rem; }
.material-card p { margin: 0; color: var(--ink-soft); font-size: 0.94rem; }
.material-card .links { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: auto; padding-top: 1.3rem; }
.material-card .links a { font-size: 0.9rem; font-weight: 800; text-underline-offset: 3px; }
.status { align-self: flex-start; margin-top: auto; padding-top: 1.3rem; color: var(--ink-soft); font-size: 0.85rem; font-weight: 750; }
.status::before { display: inline-block; width: 7px; height: 7px; margin-right: 0.45rem; content: ""; background: var(--gold-light); border-radius: 50%; }

.notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 1rem;
  padding: 1.4rem 1.6rem;
  color: var(--white);
  background: var(--teal);
  border-radius: var(--radius);
}
.notice p { margin: 0; }
.notice a { font-weight: 800; white-space: nowrap; }

.week-two-table { width: 100%; border-collapse: collapse; background: var(--paper-strong); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.week-two-table th, .week-two-table td { padding: 1rem 1.2rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.week-two-table th { width: 18%; color: var(--teal); font-family: Georgia, serif; font-size: 1.15rem; }
.week-two-table tr:last-child th, .week-two-table tr:last-child td { border-bottom: 0; }
.week-two-table td:nth-child(2) { width: 22%; font-variant-numeric: tabular-nums; font-weight: 750; }

.faculty-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.faculty-group { padding: 1.7rem 0; border-top: 2px solid var(--ink); }
.faculty-group h3 { margin: 0 0 1rem; font-size: 1.35rem; }
.faculty-group ul { margin: 0; padding: 0; list-style: none; }
.faculty-group li + li { margin-top: 0.45rem; }
.faculty-group a { text-decoration-color: var(--gold-light); text-underline-offset: 3px; }

.prep-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); counter-reset: prep; }
.prep-card { padding: 1.4rem; }
.prep-card::before { counter-increment: prep; content: "0" counter(prep); color: var(--gold); font-family: Georgia, serif; font-size: 1.35rem; }
.prep-card h3 { margin: 0.7rem 0 0.45rem; font-size: 1.25rem; }
.prep-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; }
.prep-card a { font-weight: 750; text-underline-offset: 3px; }

.footer { padding: 3rem 0 4rem; color: #d9e2ec; background: var(--ink); }
.footer-grid { display: flex; align-items: flex-start; justify-content: space-between; gap: 2rem; }
.footer p { margin: 0; }
.footer a { color: var(--white); text-underline-offset: 3px; }
.footer .small { max-width: 520px; margin-top: 0.5rem; color: #9fb3c8; font-size: 0.86rem; }

@media (max-width: 900px) {
  .nav-links a:not(.chat-link) { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 4.5rem; }
  .hero-card { max-width: 520px; }
  .section-head { grid-template-columns: 1fr; align-items: start; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .prep-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 650px) {
  body { font-size: 16px; }
  .shell { width: min(100% - 1.3rem, 1180px); }
  .brand span { max-width: 175px; font-size: 0.86rem; line-height: 1.15; }
  .hero { padding: 3.5rem 0 4rem; }
  h1 { font-size: clamp(2.7rem, 14vw, 4.1rem); }
  .hero-card { padding: 1.6rem; }
  .section { padding: 4rem 0; }
  .week-grid, .cards, .faculty-grid, .prep-grid { grid-template-columns: 1fr; }
  .day { grid-template-columns: 1fr; gap: 0.7rem; }
  .session { grid-template-columns: 105px 1fr; gap: 0.55rem; }
  .session em { grid-column: 2; text-align: left; }
  .notice { align-items: flex-start; flex-direction: column; gap: 0.8rem; }
  .week-two-table, .week-two-table tbody, .week-two-table tr, .week-two-table th, .week-two-table td { display: block; width: 100%; }
  .week-two-table tr { padding: 1rem; border-bottom: 1px solid var(--line); }
  .week-two-table th, .week-two-table td { padding: 0.2rem 0; border: 0; }
  .footer-grid { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}