:root {
  --detail-bg: #070b17;
  --detail-panel: #0d1427;
  --detail-panel-2: #111a31;
  --detail-ink: #f7f8fb;
  --detail-muted: #97a5b9;
  --detail-line: rgba(255, 255, 255, 0.12);
  --detail-mint: #48e0c1;
  --detail-red: #ff5f67;
  --detail-blue: #5d7cff;
  --detail-purple: #b681ff;
}

html { background: var(--detail-bg); }

body {
  color: var(--detail-ink);
  background:
    radial-gradient(circle at 84% 6%, rgba(72, 224, 193, 0.07), transparent 25%),
    radial-gradient(circle at 9% 28%, rgba(93, 124, 255, 0.08), transparent 28%),
    var(--detail-bg);
}

.visually-hidden {
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  position: absolute !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.site-header {
  width: 100%;
  height: 82px;
  margin: 0;
  padding-right: max(24px, calc((100% - 1240px) / 2));
  padding-left: max(24px, calc((100% - 1240px) / 2));
  border-bottom-color: #d8cebf;
  background: #f4efe5;
}
.site-header .brand .wordmark {
  filter: none;
}
.site-header .site-menu > .site-menu-link,
.site-header .site-menu-group > summary { color: #4b4741; }
.site-header .site-menu > .site-menu-link:hover,
.site-header .site-menu-group > summary:hover { color: #9a7127; }

.detail-context {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
  padding: 22px 0;
  border-bottom: 1px solid var(--detail-line);
}
.detail-context a { color: var(--detail-mint); }
.detail-context span { color: var(--detail-muted); }

.hero.course-detail {
  width: min(1240px, calc(100% - 48px));
  padding: 72px 0 86px;
  grid-template-columns: minmax(0, 1.02fr) minmax(390px, 0.72fr);
  gap: clamp(54px, 7vw, 98px);
  align-items: start;
}

.hero-meta-line { margin-bottom: 24px; }
.eyebrow { color: var(--detail-mint); }
.stage-badge { color: var(--detail-red); border-color: var(--detail-red); background: rgba(255, 95, 103, 0.08); }
.stage-badge[data-stage="feedback"] { color: var(--detail-mint); border-color: var(--detail-mint); background: rgba(72, 224, 193, 0.08); }
.stage-badge[data-stage="archived"] { color: #aab4c3; border-color: #66758a; background: rgba(255, 255, 255, 0.04); }

.hero h1 { color: #fff; font-family: var(--sans); font-size: clamp(48px, 5.1vw, 72px); line-height: 1.12; }
.theme { color: var(--detail-red); font-family: var(--sans); font-size: clamp(25px, 2.5vw, 34px); }
.subtitle { color: #b4becd; font-size: 16px; }

.history-proof {
  border-color: var(--detail-line);
  color: var(--detail-muted);
}
.history-proof .proof-label { color: var(--detail-muted); }
.history-proof strong { color: #fff; font-family: var(--sans); }
.history-proof span:last-child { color: var(--detail-muted); }

.primary-action {
  border-color: var(--detail-mint);
  color: #07101a;
  background: var(--detail-mint);
  box-shadow: 0 14px 34px rgba(72, 224, 193, 0.14);
}
.primary-action:hover { background: #6be8cf; box-shadow: 0 18px 40px rgba(72, 224, 193, 0.2); }

.course-facts { border-color: var(--detail-line); }
.course-facts div { border-color: var(--detail-line); background: rgba(13, 20, 39, 0.42); }
.course-facts dt { color: var(--detail-mint); }
.course-facts dd { color: #eef1f6; }

.poster-column { min-width: 0; }
.course-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 0;
  padding: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(72, 224, 193, 0.36);
  border-radius: 4px;
  background: #f4f2ed;
  box-shadow: 0 34px 84px rgba(0, 0, 0, 0.34);
}
.course-cover::before,
.course-cover::after { content: none; display: none; }
.course-cover > img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.course-cover-meta {
  min-height: 44px;
  padding: 0 14px;
  position: absolute;
  inset: auto 0 0;
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 10px;
  color: #dfe5ed;
  border-top: 1px solid var(--detail-line);
  background: rgba(7, 11, 23, 0.9);
  font-size: 10px;
}
.course-cover-meta span + span { border-left-color: var(--detail-line); }
.course-cover-meta b { color: var(--detail-mint); }

.attendance-meter {
  margin-top: 14px;
  border: 1px solid var(--detail-line);
  color: var(--detail-ink);
  background: rgba(13, 20, 39, 0.86);
}
.attendance-meter div + div { border-left-color: var(--detail-line); }
.attendance-meter span,
.attendance-meter small { color: var(--detail-muted); }
.attendance-meter strong { color: #fff; font-family: var(--sans); }

.progress-section,
.course-body {
  width: min(1240px, calc(100% - 48px));
}
.progress-section { padding: 74px 0; border-top-color: var(--detail-line); }
.section-heading p { color: var(--detail-mint); }
.section-heading h2 { color: #fff; font-family: var(--sans); }
.progress-track { border-color: var(--detail-line); background: rgba(13, 20, 39, 0.52); }
.progress-track li { border-color: var(--detail-line); }
.progress-track li::after { background: var(--detail-line); }
.progress-marker { color: #8c9aaf; border-color: #526076; background: var(--detail-bg); }
.progress-track li.is-current .progress-marker { color: #07101a; border-color: var(--detail-mint); background: var(--detail-mint); }
.progress-track li.is-complete .progress-marker { color: #07101a; border-color: var(--detail-red); background: var(--detail-red); }
.progress-track strong { color: #fff; }
.progress-track small { color: var(--detail-muted); }

.course-body { padding: 84px 0; grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.65fr); gap: 32px; }
.agenda-panel,
.fit-panel { border: 1px solid var(--detail-line); background: rgba(13, 20, 39, 0.66); }
.agenda-panel { padding: 34px; }
.agenda-list { border-top-color: var(--detail-line); }
.agenda-list li { border-bottom-color: var(--detail-line); }
.agenda-list p { color: #d8dee7; }
.list-number { color: var(--detail-red); }
.includes { color: var(--detail-mint); border-color: rgba(72, 224, 193, 0.32); background: rgba(72, 224, 193, 0.05); }
.fit-panel { padding: 8px 26px; }
.fit-panel section + section { border-top-color: var(--detail-line); }
.aside-label { color: #fff; font-family: var(--sans); }
.fit-panel li { border-bottom-color: var(--detail-line); }
.fit-panel li::before { border-color: var(--detail-mint); }
.fit-panel li p { color: #b7c1cf; }

.history-section.review-section {
  padding: 86px max(24px, calc((100% - 1240px) / 2)) 96px;
  border-top-color: var(--detail-line);
  background: #091020;
}
.history-heading > span { color: var(--detail-muted); }
.review-list { border-top-color: var(--detail-line); }
.review-card { border-bottom-color: var(--detail-line); }
.review-score strong { color: var(--detail-mint); font-family: var(--sans); }
.review-score span { color: var(--detail-muted); }
.review-copy p { color: #dce2ea; }
.review-copy small { color: var(--detail-muted); }
.empty-history { color: var(--detail-muted); }

body > footer {
  width: min(1240px, calc(100% - 48px));
  border-top: 1px solid var(--detail-line);
}
body > footer strong { color: #fff; }
body > footer span { color: var(--detail-muted); }
body > footer a { color: var(--detail-mint); }

.mobile-action { border-top-color: var(--detail-line); color: #fff; background: rgba(7, 11, 23, 0.96); }
.mobile-action span { color: var(--detail-mint); }
.mobile-action button { color: #07101a; background: var(--detail-mint); }

dialog { color: #d8dee7; background: #0d1427; box-shadow: 0 32px 90px rgba(0, 0, 0, 0.55); }
dialog::backdrop { background: rgba(2, 5, 12, 0.8); }
.sheet-dialog { border-top-color: var(--detail-mint); }
.dialog-close { color: #cbd3de; background: transparent; }
.dialog-eyebrow { color: var(--detail-mint); }
.sheet-dialog h2 { color: #fff; }
.dialog-lead { color: var(--detail-muted); }
.sheet-dialog label,
.sheet-dialog legend { color: #c8d0dc; }
.sheet-dialog input,
.sheet-dialog textarea { color: #fff; border-color: var(--detail-line); background: #070b17; }
.registration-account-panel { border-color: var(--detail-line); background: #091020; }
.registration-account-panel > span { color: var(--detail-mint); }
.registration-account-panel > strong { color: #fff; }
.privacy-check { border-color: var(--detail-line); background: rgba(255, 255, 255, 0.03); }
.secondary-action { color: #fff; border-color: var(--detail-line); background: transparent; }
.registration-status dl { border-color: var(--detail-line); }
.registration-status dl div + div { border-left-color: var(--detail-line); }
.registration-status dt { color: var(--detail-muted); }
.registration-status dd { color: #fff; }
.rating-buttons button { color: #dce2ea; border-color: var(--detail-line); background: #091020; }
.rating-buttons button[aria-pressed="true"] { color: #07101a; border-color: var(--detail-mint); background: var(--detail-mint); }

.loading-failure,
.invite-notice { color: #fff; border-color: rgba(255, 95, 103, 0.5); background: #141b2b; }

/* Standalone course conversion story. These selectors stay scoped to the
   detail page so the catalog and checkout surfaces keep their own rhythm. */
.conversion-section {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 78px 0 84px;
  border-top: 1px solid var(--folio-line, #d8cebf);
  scroll-margin-top: 24px;
}

.conversion-section[hidden],
.conversion-section [hidden] { display: none; }

.conversion-heading {
  max-width: 820px;
}

.conversion-heading > p {
  margin: 0 0 13px;
  color: var(--folio-gold-dark, #8a6323);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.2em;
}

.conversion-heading h2 {
  margin: 0;
  color: var(--folio-ink, #20201e);
  font-family: var(--folio-serif, var(--serif));
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.conversion-list {
  margin: 42px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  list-style: none;
}

.conversion-list li {
  min-height: 118px;
  padding: 26px 28px 25px 32px;
  position: relative;
  display: flex;
  align-items: center;
  border: 1px solid var(--folio-line, #d8cebf);
  background: var(--folio-paper, #fffdf8);
  box-shadow: var(--folio-shadow-small, 0 12px 28px rgba(72, 55, 34, 0.07));
}

.conversion-list li::before {
  content: "";
  width: 4px;
  position: absolute;
  inset: -1px auto -1px -1px;
  background: var(--folio-red, #b94a40);
}

.outcome-list li::before { background: var(--folio-gold, #b88b3d); }

.conversion-list p {
  margin: 0;
  color: var(--folio-ink, #20201e);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.75;
}

.curriculum-section {
  padding-bottom: 92px;
}

.conversion-agenda {
  margin-top: 42px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  border-top: 0;
}

.conversion-agenda li {
  min-height: 132px;
  padding: 24px 26px;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: start;
  gap: 12px;
  border: 1px solid var(--folio-line, #d8cebf);
  background: var(--folio-paper, #fffdf8);
  box-shadow: var(--folio-shadow-small, 0 12px 28px rgba(72, 55, 34, 0.07));
}

.conversion-agenda .list-number {
  padding-top: 3px;
  color: var(--folio-red, #b94a40);
  font-family: var(--folio-serif, var(--serif));
  font-size: 18px;
  font-weight: 900;
}

.conversion-agenda .module-copy strong {
  display: block;
  color: var(--folio-ink, #20201e);
  font-family: var(--folio-serif, var(--serif));
  font-size: 20px;
  line-height: 1.45;
}

.conversion-agenda .module-copy p {
  margin-top: 10px;
  color: var(--folio-muted, #7b746b);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.7;
}

.fit-grid {
  margin-top: 42px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.fit-grid article {
  min-width: 0;
  padding: 31px 32px 26px;
  border: 1px solid var(--folio-line, #d8cebf);
  border-top: 4px solid var(--folio-gold, #b88b3d);
  background: var(--folio-paper, #fffdf8);
  box-shadow: var(--folio-shadow-small, 0 12px 28px rgba(72, 55, 34, 0.07));
}

.fit-grid article:last-child { border-top-color: var(--folio-red, #b94a40); }

.fit-grid .aside-label {
  margin: 0 0 19px;
  color: var(--folio-ink, #20201e);
  font-family: var(--folio-serif, var(--serif));
  font-size: 24px;
}

.fit-grid ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.fit-grid li {
  padding: 14px 0 14px 22px;
  position: relative;
  border-top: 1px solid var(--folio-line-soft, #e8e0d4);
}

.fit-grid li::before {
  content: "";
  width: 7px;
  height: 7px;
  position: absolute;
  top: 22px;
  left: 1px;
  border: 2px solid var(--folio-gold, #b88b3d);
  border-radius: 50%;
}

.fit-grid article:last-child li::before { border-color: var(--folio-red, #b94a40); }
.fit-grid li p { margin: 0; color: var(--folio-body, #4b4741); font-size: 14px; line-height: 1.7; }

.participation-section {
  margin-top: 12px;
  padding: clamp(42px, 6vw, 72px);
  border: 1px solid var(--folio-line, #d8cebf);
  border-top: 5px solid var(--folio-red, #b94a40);
  background:
    linear-gradient(135deg, rgba(213, 180, 120, 0.1), transparent 45%),
    var(--folio-paper, #fffdf8);
  box-shadow: var(--folio-shadow, 0 22px 58px rgba(72, 55, 34, 0.1));
}

.participation-section .course-facts {
  margin-top: 40px;
}

.participation-action {
  min-width: min(340px, 100%);
  margin-top: 30px;
}

.participation-section .progress-section {
  width: 100%;
  margin: 52px 0 0;
  padding: 45px 0 0;
  border-top: 1px solid var(--folio-line, #d8cebf);
  border-bottom: 0;
}

.participation-section .compact-heading h3 {
  margin: 0;
  color: var(--folio-ink, #20201e);
  font-family: var(--folio-serif, var(--serif));
  font-size: clamp(27px, 3vw, 38px);
}

.participation-section .progress-track {
  margin-top: 30px;
}

.record-section {
  padding-bottom: 100px;
}

.record-section .history-proof {
  margin-top: 38px;
}

.record-section .attendance-meter {
  max-width: 560px;
  margin-top: 24px;
}

.record-section .replay-section {
  width: 100%;
  margin: 38px 0 0;
}

.record-section .history-section.review-section {
  width: 100%;
  margin: 48px 0 0;
  padding: 44px 0 0;
  border-top: 1px solid var(--folio-line, #d8cebf);
  background: transparent;
}

.record-section .history-section.review-section .review-list {
  margin-top: 32px;
}

.subscription-dialog .form-error.is-success {
  color: var(--folio-olive, #47724b);
}

@media (max-width: 900px) {
  .hero.course-detail { grid-template-columns: 1fr; }
  .poster-column { width: min(620px, 100%); }
  .course-body { grid-template-columns: 1fr; }
  .conversion-agenda,
  .fit-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .site-header,
  .detail-context,
  .hero.course-detail,
  .progress-section,
  .course-body,
  body > footer { width: min(100% - 28px, 1240px); }
  .site-header { width: 100%; height: 68px; padding-right: 14px; padding-left: 14px; }
  .site-header .brand img:first-child { width: 32px; height: 32px; }
  .site-header .brand .wordmark { width: 90px; }
  .site-header .site-menu { gap: 11px; }
  .site-header .site-menu > .site-menu-link,
  .site-header .site-menu-group > summary { display: inline-flex; font-size: 9px; }
  .detail-context { padding: 16px 0; }
  .hero.course-detail { padding: 48px 0 60px; }
  .hero h1 { font-size: 42px; }
  .theme { font-size: 25px; }
  .course-facts { grid-template-columns: 1fr; }
  .course-cover-meta { font-size: 9px; }
  .progress-section { padding: 58px 0; }
  .progress-track { grid-template-columns: 1fr; }
  .progress-track li { min-height: 74px; }
  .course-body { padding: 60px 0; }
  .agenda-panel { padding: 24px 18px; }
  .history-section.review-section { padding: 62px 14px 76px; }
  .sheet-dialog { color: #d8dee7; }
  .conversion-section {
    width: min(100% - 28px, 1180px);
    padding: 56px 0 62px;
  }
  .conversion-heading h2 { font-size: 34px; }
  .conversion-list,
  .conversion-agenda,
  .fit-grid { margin-top: 30px; grid-template-columns: 1fr; }
  .conversion-list li { min-height: 0; padding: 22px 22px 21px 26px; }
  .conversion-agenda li { min-height: 0; padding: 22px 18px; grid-template-columns: 42px minmax(0, 1fr); }
  .fit-grid article { padding: 26px 21px 21px; }
  .participation-section {
    width: min(100% - 28px, 1180px);
    margin-top: 8px;
    padding: 34px 20px 40px;
  }
  .participation-action { width: 100%; }
  .participation-section .progress-section { width: 100%; padding-top: 38px; }
  .record-section .replay-section { width: 100%; }
  .record-section .history-section.review-section { padding-right: 0; padding-left: 0; }
}