:root {
  --ink: #17231f;
  --muted: #5f6b66;
  --paper: #f5f7f3;
  --surface: #ffffff;
  --sage: #dce8df;
  --sage-deep: #52705f;
  --blue: #e5edf5;
  --sand: #f1eadc;
  --line: #d7ddd8;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

code {
  border-radius: 4px;
  background: #edf0ec;
  padding: .08em .32em;
  font: .92em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.sitebar {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.sitebar a {
  color: var(--muted);
  font-size: .78rem;
  font-weight: 650;
  letter-spacing: .06em;
  text-decoration: none;
  text-transform: uppercase;
}

.sitebar a:hover { color: var(--ink); }

.shell {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: 76px 0 54px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 720px);
  margin-bottom: 52px;
}

.kicker {
  margin: 0 0 20px;
  color: var(--sage-deep);
  font-size: .76rem;
  font-weight: 750;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1, h2 { text-wrap: balance; }

h1 {
  max-width: 760px;
  margin: 0 0 22px;
  font: 520 clamp(2.65rem, 6vw, 5rem)/1.03 Georgia, "Times New Roman", serif;
  letter-spacing: -.035em;
}

.lede {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.22rem);
}

.intro {
  display: grid;
  grid-template-columns: minmax(240px, .8fr) minmax(0, 1.2fr);
  gap: clamp(30px, 6vw, 72px);
  margin: 0 0 42px;
  padding: 32px 0 38px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--sage-deep);
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.intro h2 {
  margin: 0;
  font: 520 clamp(1.7rem, 3.5vw, 2.5rem)/1.12 Georgia, "Times New Roman", serif;
  letter-spacing: -.02em;
}

.intro-copy p {
  margin: 0 0 16px;
  color: var(--muted);
}

.intro-copy p:last-child { margin-bottom: 0; }
.intro-copy strong { color: var(--ink); }

.notice {
  margin: 0 0 30px;
  border-left: 3px solid var(--sage-deep);
  border-radius: 0 8px 8px 0;
  background: var(--sage);
  padding: 18px 22px;
  color: #34443b;
}

.notice strong { color: var(--ink); }

.agenda {
  display: grid;
  grid-template-columns: minmax(240px, .8fr) minmax(0, 1.2fr);
  gap: clamp(30px, 6vw, 72px);
  margin: 0 0 66px;
  padding: 30px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.agenda h2,
.section-heading h2 {
  margin: 0;
  font: 520 clamp(1.65rem, 3vw, 2.35rem)/1.12 Georgia, "Times New Roman", serif;
  letter-spacing: -.02em;
}

.agenda ol {
  margin: 0;
  padding-left: 1.4rem;
  color: var(--muted);
}

.agenda li { margin-bottom: 9px; }
.agenda li:last-child { margin-bottom: 0; }
.agenda strong { color: var(--ink); }

.section-heading {
  max-width: 760px;
  margin: 66px 0 24px;
}

.section-heading:first-of-type { margin-top: 0; }

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

.card {
  display: flex;
  min-height: 270px;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  padding: clamp(24px, 4vw, 34px);
  color: inherit;
  text-decoration: none;
  transition: border-color .18s ease, transform .18s ease;
}

a.card:hover {
  border-color: #aebbb2;
  transform: translateY(-2px);
}

.card.featured {
  min-height: 300px;
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #e3ece5, #f0f5f1);
}

.card.blue { background: var(--blue); }
.card.orange { background: var(--sand); }
.card.practice { background: linear-gradient(135deg, #e7ecf3, #f4f6f9); }
.card.answer { min-height: 300px; }

.tag {
  align-self: flex-start;
  color: var(--sage-deep);
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.card h2 {
  max-width: 720px;
  margin: 34px 0 14px;
  font: 520 clamp(1.7rem, 3.5vw, 2.65rem)/1.08 Georgia, "Times New Roman", serif;
  letter-spacing: -.02em;
}

.card p {
  max-width: 720px;
  margin: 0 0 24px;
  color: var(--muted);
}

.go {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid rgba(82, 112, 95, .24);
  color: #304b3b;
  font-size: .82rem;
  font-weight: 700;
}

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: 58px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .78rem;
}

:focus-visible {
  outline: 3px solid #7897ba;
  outline-offset: 4px;
}

@media (max-width: 680px) {
  .sitebar, .shell { width: min(100% - 28px, 1040px); }
  .shell { padding-top: 48px; }
  .hero { margin-bottom: 38px; }
  .intro, .agenda { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .card.featured { grid-column: auto; }
  .card { min-height: 240px; }
}

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

@media print {
  body { background: #fff; }
  .sitebar { display: none; }
  .shell { width: auto; padding: 0; }
  .cards { display: block; }
  .card { min-height: 0; margin-bottom: 18px; break-inside: avoid; }
}

/* Lab 05 additions */
.more {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: .95rem;
}
.more a { color: #304b3b; font-weight: 650; }
.notice.end { margin: 66px 0 0; }