/* Public course section.
   Built on the theme tokens already in global.css so this section follows the
   site's light/dark switch instead of hardcoding either. */

.container.narrow { max-width: 760px; }

.skip-to-content {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  padding: 12px 18px; background: var(--primary); color: #fff;
  text-decoration: none; border-radius: 0 0 6px 0; font-weight: 600;
}
.skip-to-content:focus { left: 0; }

.eyebrow {
  font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--primary-light); margin: 0 0 10px;
}

/* ---------- heroes ---------- */
.course-hero { padding: 72px 0 40px; }
.course-hero h1,
.mod-hero h1 {
  font-family: var(--font-display, 'Plus Jakarta Sans', sans-serif);
  font-size: clamp(34px, 5vw, 54px); line-height: 1.06; font-weight: 800;
  letter-spacing: -.02em; margin: 0 0 18px; text-wrap: balance;
  color: var(--theme-text);
}
.mod-hero { padding: 26px 0 34px; }
.les-hero { padding: 20px 0 26px; }
.les-hero h1 {
  font-family: var(--font-display, 'Plus Jakarta Sans', sans-serif);
  font-size: clamp(28px, 4vw, 40px); line-height: 1.1; font-weight: 800;
  letter-spacing: -.02em; margin: 0 0 14px; text-wrap: balance;
  color: var(--theme-text);
}
.lede {
  font-size: 19px; line-height: 1.6; color: var(--theme-text-secondary);
  max-width: 62ch; margin: 0 0 18px;
}
.course-stats { font-size: 15px; color: var(--theme-text-muted); margin: 0; }
.course-stats strong { color: var(--theme-text); font-variant-numeric: tabular-nums; }

/* ---------- freshness note ---------- */
.freshness {
  border-left: 3px solid var(--accent);
  background: var(--theme-bg-secondary);
  padding: 14px 18px; margin: 26px 0 34px; border-radius: 0 8px 8px 0;
  font-size: 15px; line-height: 1.6; color: var(--theme-text-secondary);
  max-width: 74ch;
}

/* ---------- module grid ---------- */
.mod-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 18px; margin: 0 0 72px;
}
.mod-card {
  display: block; text-decoration: none; padding: 22px 24px 20px;
  background: var(--theme-bg-secondary); border: 1px solid var(--theme-border);
  border-radius: 12px; transition: border-color .15s ease, transform .15s ease;
}
.mod-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.mod-num {
  font-size: 12px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase;
  color: var(--primary-light);
}
.mod-card h2 {
  font-family: var(--font-display, 'Plus Jakarta Sans', sans-serif);
  font-size: 21px; font-weight: 700; margin: 8px 0 10px; color: var(--theme-text);
  line-height: 1.2;
}
.mod-card p {
  font-size: 15px; line-height: 1.55; color: var(--theme-text-secondary); margin: 0 0 14px;
}
.mod-meta { font-size: 13px; color: var(--theme-text-muted); }

/* ---------- lesson list ---------- */
.les-list { list-style: none; margin: 0 0 46px; padding: 0; counter-reset: les; }
.les-row {
  border-top: 1px solid var(--theme-border); padding: 18px 0;
  display: grid; grid-template-columns: 1fr auto; gap: 6px 18px; align-items: start;
}
.les-row:last-child { border-bottom: 1px solid var(--theme-border); }
.les-row > a { text-decoration: none; display: block; }
.les-t {
  display: block; font-weight: 600; font-size: 17px; color: var(--theme-text);
  line-height: 1.35;
}
.les-row > a:hover .les-t { color: var(--primary-light); }
.les-d {
  display: block; font-size: 15px; color: var(--theme-text-secondary);
  margin-top: 3px; line-height: 1.5; max-width: 62ch;
}
.les-m {
  font-size: 13px; color: var(--theme-text-muted); white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.les-row .lesson-player,
.les-row .transcript { grid-column: 1 / -1; }

/* ---------- video ---------- */
.lesson-player {
  position: relative; width: 100%; aspect-ratio: 16 / 9;
  background: var(--theme-bg-tertiary); border-radius: 10px; overflow: hidden;
  margin: 22px 0; border: 1px solid var(--theme-border);
}
.lesson-player iframe {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}

/* ---------- transcript ---------- */
.transcript { margin: 30px 0 40px; }
.transcript h2 {
  font-family: var(--font-display, 'Plus Jakarta Sans', sans-serif);
  font-size: 22px; font-weight: 700; margin: 0 0 6px; color: var(--theme-text);
}
.transcript summary {
  cursor: pointer; font-weight: 600; font-size: 15px; color: var(--primary-light);
  padding: 10px 0; list-style: revert;
}
.transcript summary:hover { color: var(--primary); }
.transcript p {
  font-size: 17px; line-height: 1.72; color: var(--theme-text-body);
  margin: 0 0 1.1em; max-width: 68ch;
}
.transcript-note {
  font-size: 13px !important; color: var(--theme-text-muted) !important;
  margin-bottom: 1.4em !important;
}

/* ---------- nav bits ---------- */
.crumbs { font-size: 14px; color: var(--theme-text-muted); padding: 26px 0 4px; }
.crumbs a { color: var(--theme-text-secondary); text-decoration: none; }
.crumbs a:hover { color: var(--primary-light); }
.crumbs span { margin: 0 7px; opacity: .5; }

.pagenav {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  border-top: 1px solid var(--theme-border); padding: 26px 0 10px; margin-top: 34px;
}
.pn {
  font-size: 15px; font-weight: 600; text-decoration: none; color: var(--theme-text-secondary);
  max-width: 46%;
}
.pn:hover { color: var(--primary-light); }
.pn.next { margin-left: auto; text-align: right; }

.backlink { margin: 6px 0 70px; font-size: 15px; }
.backlink a { color: var(--primary-light); text-decoration: none; }
.backlink a:hover { text-decoration: underline; }

:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}
@media (max-width: 640px) {
  .les-row { grid-template-columns: 1fr; }
  .les-m { grid-row: 1; justify-self: start; }
  .pn, .pn.next { max-width: 100%; text-align: left; margin-left: 0; }
}