/* GPT Sherpa custom layer
   Drop this in as styles.css and reference it from _quarto.yml:

   format:
     html:
       theme: cosmo
       css: styles.css

   This layer keeps Quarto's documentation affordances but gives the homepage
   stronger hierarchy, warmer surfaces, and more intentional cards.
*/

:root {
  --sherpa-bg: #f7f4ed;
  --sherpa-surface: #fffdf8;
  --sherpa-surface-alt: #f1ece1;
  --sherpa-border: #ddd4c3;
  --sherpa-text: #25221c;
  --sherpa-muted: #6f675b;
  --sherpa-accent: #0b6f76;
  --sherpa-accent-dark: #084d55;
  --sherpa-accent-soft: #dceff0;
  --sherpa-code: #7c3f00;
  --sherpa-radius: 18px;
  --sherpa-shadow: 0 14px 38px rgba(55, 44, 28, 0.08);
}

body.quarto-light {
  background:
    radial-gradient(circle at top left, rgba(11, 111, 118, 0.08), transparent 28rem),
    linear-gradient(180deg, var(--sherpa-bg) 0%, #fbfaf6 42%, #ffffff 100%);
  color: var(--sherpa-text);
}

.navbar {
  border-bottom: 1px solid rgba(221, 212, 195, 0.72);
  box-shadow: none;
}

.navbar-title {
  letter-spacing: -0.02em;
  font-weight: 650;
}

.quarto-title-block .title,
h1.title {
  display: none;
}

main.content {
  max-width: 980px;
}

main.content > h1:first-of-type {
  margin-top: clamp(2rem, 7vw, 5rem);
  max-width: 12ch;
  color: var(--sherpa-text);
  font-size: clamp(2.6rem, 8vw, 5.6rem);
  line-height: 0.95;
  letter-spacing: -0.065em;
}

main.content > h2 {
  margin-top: clamp(3rem, 7vw, 5rem);
  padding-top: 0.65rem;
  border-top: 1px solid var(--sherpa-border);
  color: var(--sherpa-text);
  font-size: clamp(1.55rem, 3vw, 2.1rem);
  letter-spacing: -0.035em;
}

main.content p {
  color: var(--sherpa-muted);
  font-size: 1.03rem;
  line-height: 1.72;
}

main.content a {
  color: var(--sherpa-accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

main.content a:hover {
  color: var(--sherpa-accent-dark);
}

main.content code {
  color: var(--sherpa-code);
  background: rgba(124, 63, 0, 0.08);
  border: 1px solid rgba(124, 63, 0, 0.1);
  border-radius: 0.35rem;
  padding: 0.08rem 0.28rem;
}

.sherpa-hero {
  max-width: 760px;
  margin-top: 1.15rem;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.sherpa-hero p:first-child {
  color: var(--sherpa-text);
  font-size: clamp(1.12rem, 2vw, 1.32rem);
  line-height: 1.62;
}

.sherpa-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.65rem;
}

.sherpa-action a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: 0.78rem 1rem;
  border: 1px solid var(--sherpa-border);
  border-radius: 999px;
  background: var(--sherpa-surface);
  color: var(--sherpa-accent-dark);
  font-weight: 650;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(55, 44, 28, 0.05);
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.sherpa-action.sherpa-action-primary a,
.sherpa-action.sherpa-action-primary a:visited {
  border-color: var(--sherpa-accent);
  background: var(--sherpa-accent);
  color: #ffffff !important;
}

.sherpa-action a:hover {
  transform: translateY(-1px);
  border-color: var(--sherpa-accent);
  background: var(--sherpa-accent-soft);
  color: var(--sherpa-accent-dark);
}

.sherpa-action.sherpa-action-primary a:hover,
.sherpa-action.sherpa-action-primary a:focus,
.sherpa-action.sherpa-action-primary a:focus-visible {
  background: var(--sherpa-accent-dark);
  border-color: var(--sherpa-accent-dark);
  color: #ffffff !important;
}

.sherpa-action a:focus-visible {
  outline: 3px solid var(--sherpa-accent);
  outline-offset: 3px;
}

.sherpa-card-grid {
  row-gap: 1rem;
}

.sherpa-card {
  min-height: 100%;
  padding: clamp(1rem, 2.2vw, 1.35rem);
  border: 1px solid var(--sherpa-border);
  border-radius: var(--sherpa-radius);
  background: rgba(255, 253, 248, 0.86);
  box-shadow: var(--sherpa-shadow);
}

.sherpa-card h3 {
  margin-top: 0;
  color: var(--sherpa-text);
  font-size: 1.18rem;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.sherpa-card p {
  margin-bottom: 0.85rem;
  font-size: 0.98rem;
}

.sherpa-card ul {
  padding-left: 1.1rem;
}

.sherpa-card li {
  margin-bottom: 0.58rem;
  color: var(--sherpa-muted);
  line-height: 1.55;
}

.sherpa-card li::marker {
  color: var(--sherpa-accent);
}

hr {
  margin-top: 3rem;
  border-color: var(--sherpa-border);
  opacity: 1;
}

@media (max-width: 767px) {
  main.content {
    padding-left: 1.05rem;
    padding-right: 1.05rem;
  }

  main.content > h1:first-of-type {
    max-width: 10ch;
  }

  .sherpa-actions {
    display: grid;
  }

  .sherpa-action a {
    width: 100%;
  }
}