/* A small Quarto companion to the DDSS site. */
@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=Outfit:wght@600;700;800&display=swap');

:root {
  --ddss-bg: #ffffff;
  --ddss-elevated: #f4f5f7;
  --ddss-ink: #1a1f36;
  --ddss-secondary: #3d4466;
  --ddss-muted: #5e6385;
  --ddss-blue: #0f2dbc;
  --ddss-blue-light: #163bf5;
  --ddss-mint: #75fbc7;
  --ddss-border: #d4d7de;
  --ddss-border-subtle: #e8eaee;
  --bs-body-color: var(--ddss-ink);
  --bs-link-color: var(--ddss-blue);
  --bs-link-hover-color: var(--ddss-blue-light);
}

body {
  background: var(--ddss-bg);
  color: var(--ddss-ink);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  line-height: 1.6;
}

h1, h2, h3 {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
}

code, pre { font-family: "Fira Code", monospace; }

.navbar {
  background: #fff;
  border-bottom: 1px solid var(--ddss-border);
  padding-block: 1rem;
}

.navbar-brand {
  color: var(--ddss-ink) !important;
  font-family: "Outfit", "Inter", system-ui, sans-serif;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -.03em;
  position: relative;
  z-index: 0;
}

.navbar-brand::before {
  background: var(--ddss-mint);
  bottom: .08rem;
  content: "";
  height: .45rem;
  left: -.2rem;
  opacity: .8;
  position: absolute;
  right: -.2rem;
  transform: skewX(-10deg);
  z-index: -1;
}

.navbar-nav .nav-link {
  color: var(--ddss-ink) !important;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active { color: var(--ddss-blue) !important; }

.page-layout-full #title-block-header { display: none; }

.hero {
  border-bottom: 1px solid var(--ddss-border-subtle);
  padding: 2.5rem 1.5rem 2.25rem;
}

.hero-inner,
.content-wrap {
  margin: 0 auto;
  max-width: 1100px;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -1.2px;
  line-height: 1;
  margin: 0;
}

.hero-highlight {
  display: inline-block;
  font-family: "Fira Code", "JetBrains Mono", monospace;
  letter-spacing: normal;
  position: relative;
  white-space: nowrap;
  z-index: 0;
}

.hero-highlight::before {
  background: var(--ddss-mint);
  bottom: -.02em;
  content: "";
  left: -.1em;
  position: absolute;
  right: -.1em;
  top: .08em;
  transform: rotate(-.5deg) skewX(-3deg);
  z-index: -1;
}

.hero-meta {
  color: var(--ddss-secondary);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 1.125rem;
  line-height: 1.75rem;
  margin: 1.25rem 0 0;
}

.content-wrap { padding: 2.5rem 1.5rem 5rem; }

.content-wrap > h2,
main.content h2 {
  align-items: center;
  border: 0;
  display: flex;
  font-size: 1.25rem;
  font-weight: 600;
  gap: .7rem;
  margin-top: 2.5rem;
  padding: 0;
}

.content-wrap > h2::before,
main.content h2::before {
  background: var(--ddss-blue);
  content: "";
  flex: 0 0 auto;
  height: 1.5rem;
  width: .35rem;
}

.prerequisites-callout {
  align-items: center;
  background: #fff;
  border: 1px solid var(--ddss-border);
  border-left: .35rem solid var(--ddss-blue);
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  margin-bottom: 3rem;
  padding: 1.25rem 1.5rem;
}

.prerequisites-callout h3 { font-size: 1.05rem; margin: 0 0 .25rem; }
.prerequisites-callout p { color: var(--ddss-secondary); margin: 0; }
.callout-link { flex: 0 0 auto; font-size: .9rem; font-weight: 600; text-decoration: none; }

.week-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(2, 1fr);
  margin: 1.5rem 0 2rem;
}

.day-card {
  background: #fff;
  border: 1px solid var(--ddss-border);
  padding: 1.5rem;
}

.day-label {
  color: var(--ddss-blue);
  font-family: "Fira Code", monospace;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.day-card h3 { font-size: 1rem; font-weight: 600; line-height: 1.6; margin: .35rem 0 .8rem; }
.day-card h3 a { color: var(--ddss-ink); text-decoration: none; }
.day-card h3 a:hover { color: var(--ddss-blue); }
.day-card ul { color: var(--ddss-secondary); margin: 0; padding-left: 1.2rem; }
.day-card li + li { margin-top: .25rem; }

.note-strip {
  border-top: 1px solid var(--ddss-border);
  color: var(--ddss-secondary);
  font-size: .9rem;
  padding-top: 1rem;
}

/* Interior pages */
#quarto-content:not(.page-layout-full) main.content { max-width: 900px; }
.quarto-title h1 { font-size: clamp(2.25rem, 5vw, 3rem); font-weight: 700; letter-spacing: -1.2px; line-height: 1; }
.schedule-table { border-top: 2px solid var(--ddss-ink); margin-top: 2rem; }
.schedule-table table { margin-bottom: 0; }
.schedule-table thead { background: #fff; color: var(--ddss-ink); }
.schedule-table td:first-child {
  color: var(--ddss-blue);
  font-family: "Fira Code", monospace;
  font-size: .82rem;
  font-weight: 600;
  white-space: nowrap;
}
.schedule-table th,
.schedule-table td { border-color: var(--ddss-border); }
.callout-note { border-left-color: var(--ddss-blue) !important; }

.refs {
  border-left: 2px solid var(--ddss-border);
  color: var(--ddss-muted);
  font-size: .85rem;
  margin: 1.25rem 0 2rem;
  padding: .1rem 0 .1rem 1rem;
}
.refs p { margin: 0 0 .3rem; }
.refs .refs-label {
  color: var(--ddss-secondary);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .7rem;
}
.refs ul { margin: 0; padding-left: 1.1rem; }
.refs li + li { margin-top: .15rem; }

.page-footer { border-top: 1px solid var(--ddss-border); color: var(--ddss-muted); }
.footer-logo { display: block; height: auto; max-width: min(22rem, 70vw); width: 13rem; }

@media (max-width: 700px) {
  .week-grid { grid-template-columns: 1fr; }
  .hero { padding-block: 1.75rem; }
  .prerequisites-callout { align-items: flex-start; flex-direction: column; gap: .75rem; }
}