/**
 * OcoBoard Courses — front stylesheet (catalogue, sales page, player chrome,
 * locked states, account area). Plain CSS, no build step, no Tailwind
 * runtime — this plugin renders on ANY active theme (works on Twenty
 * Twenty-Four), so it must never assume the host theme's own utility
 * classes or reset. Everything is scoped under `.oco-courses` (applied by
 * every template's outer wrapper) and every class is `oco-` prefixed to
 * avoid colliding with the host theme.
 *
 * Visual direction ported from ~/dev/isabelle-beaugrand/formation/css/course.css
 * (variant-b "focus" as the default target) with the plugin's own neutral
 * token set below instead of that project's bespoke design system — a
 * theme/child-theme can repaint the whole surface by overriding these
 * custom properties on `.oco-courses`.
 */

.oco-courses {
  --oco-cream: #faf7f0;
  --oco-cream-soft: #f3efe4;
  --oco-ink: #221f1a;
  --oco-ink-70: #55524a;
  --oco-ink-50: #857f73;
  --oco-green: #6b7350;
  --oco-green-deep: #4b5236;
  --oco-line: rgba(107, 115, 80, 0.25);
  --oco-line-soft: rgba(107, 115, 80, 0.15);
  --oco-card: #ffffff;
  --oco-radius: 4px;
  --oco-bar-h: 64px;
  --oco-rail-w: 340px;

  color: var(--oco-ink);
  background: var(--oco-cream);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

.oco-courses *,
.oco-courses *::before,
.oco-courses *::after {
  box-sizing: border-box;
}

.oco-courses a {
  color: inherit;
  text-decoration: none;
}

.oco-courses button {
  font-family: inherit;
}

/* ---------------------------------------------------------------- Buttons */
.oco-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--oco-radius);
  border: 1px solid transparent;
  font-size: 15px;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}
.oco-btn--primary { background: var(--oco-green); color: #fff; }
.oco-btn--primary:hover { background: var(--oco-green-deep); }
.oco-btn--outline { background: transparent; border-color: var(--oco-line); color: var(--oco-green-deep); }
.oco-btn--outline:hover { background: var(--oco-line-soft); }
.oco-btn--ghost { background: transparent; color: var(--oco-ink-70); }
.oco-btn--disabled,
.oco-btn[disabled] { opacity: 0.55; cursor: not-allowed; }
.oco-btn--block { width: 100%; }

/* ---------------------------------------------------------------- Progress */
.oco-progressbar { height: 6px; border-radius: 999px; background: var(--oco-line-soft); overflow: hidden; }
.oco-progressbar > i { display: block; height: 100%; background: var(--oco-green); }

/* ---------------------------------------------------------------- Topbar */
.oco-topbar {
  position: sticky; top: 0; z-index: 60;
  background: rgba(250, 247, 240, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--oco-line-soft);
}
.oco-topbar__in { display: flex; align-items: center; gap: 16px; height: var(--oco-bar-h); padding-inline: 24px; }
.oco-topbar__back { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--oco-ink-70); }
.oco-topbar__back:hover { color: var(--oco-green); }
.oco-topbar__title { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.oco-topbar__eyebrow { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--oco-green); }
.oco-topbar__name { font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.oco-topbar__spacer { flex: 1; }
.oco-topbar__prog { display: flex; align-items: center; gap: 10px; min-width: 180px; }
.oco-topbar__prog .oco-progressbar { flex: 1; }
.oco-topbar__pct { font-size: 13px; color: var(--oco-ink-70); white-space: nowrap; }
.oco-topbar__menu { display: none; border: 0; background: none; width: 40px; height: 40px; }
.oco-badge-private { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--oco-green); border: 1px solid var(--oco-line); padding: 5px 10px; border-radius: var(--oco-radius); }

/* ---------------------------------------------------------------- Layout */
.oco-course-layout { display: grid; min-height: calc(100vh - var(--oco-bar-h)); }
.oco-course-layout--2col { grid-template-columns: var(--oco-rail-w) 1fr; }
.oco-course-layout--3col { grid-template-columns: var(--oco-rail-w) 1fr 300px; }
.oco-course-layout--focus { grid-template-columns: 1fr; }

/* ---------------------------------------------------------------- Rail */
.oco-rail { border-right: 1px solid var(--oco-line-soft); background: var(--oco-cream-soft); display: flex; flex-direction: column; }
.oco-rail__head { padding: 20px 22px; border-bottom: 1px solid var(--oco-line-soft); display: flex; flex-direction: column; gap: 12px; }
.oco-rail__course { font-size: 18px; }
.oco-rail__meta { font-size: 13px; color: var(--oco-ink-70); display: flex; gap: 8px; }
.oco-rail__prog { display: flex; flex-direction: column; gap: 6px; }
.oco-rail__prog .oco-row { display: flex; justify-content: space-between; font-size: 13px; color: var(--oco-ink-70); }
.oco-rail__body { overflow-y: auto; flex: 1; padding-bottom: 24px; }
.oco-rail__close { display: none; }

.oco-module { border-bottom: 1px solid var(--oco-line-soft); }
.oco-module__head { width: 100%; background: none; border: 0; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 16px 22px; text-align: left; cursor: pointer; }
.oco-module__n { font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--oco-green); display: block; }
.oco-module__name { font-size: 15px; }
.oco-module__list { display: none; padding-bottom: 6px; }
.oco-module.is-open .oco-module__list { display: block; }
.oco-module.is-open .oco-module__chev { transform: rotate(180deg); }
.oco-module__chev { width: 16px; height: 16px; color: var(--oco-green); transition: transform 0.2s ease; }

.oco-lesson {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 22px 10px 26px;
  border-left: 2px solid transparent;
  cursor: pointer;
}
.oco-lesson:hover { background: rgba(107, 115, 80, 0.06); }
.oco-lesson.is-active { background: rgba(107, 115, 80, 0.1); border-left-color: var(--oco-green); }
.oco-lesson.is-locked { color: var(--oco-ink-50); cursor: not-allowed; }
.oco-lesson__status { width: 18px; height: 18px; flex: none; display: flex; align-items: center; justify-content: center; }
.oco-lesson__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--oco-green); }
.oco-lesson__ring { width: 14px; height: 14px; border: 1.5px solid var(--oco-line); border-radius: 50%; }
.oco-lesson__check { width: 16px; height: 16px; color: var(--oco-green); }
.oco-lesson.is-completed .oco-lesson__sub { color: var(--oco-green); }
.oco-lesson__main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.oco-lesson__title { font-size: 14px; }
.oco-lesson__sub { font-size: 12px; color: var(--oco-ink-50); }

/* ---------------------------------------------------------------- Stage */
.oco-stage { min-width: 0; }
.oco-lesson-wrap { max-width: 760px; margin-inline: auto; padding: 40px 24px 80px; display: flex; flex-direction: column; gap: 32px; }
.oco-lesson-wrap--wide { max-width: 900px; }
.oco-lesson-head { display: flex; flex-direction: column; gap: 10px; }
.oco-lesson-head__crumb { font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--oco-green); }
.oco-lesson-head__title { font-size: clamp(24px, 3vw, 34px); line-height: 1.15; }
.oco-lesson-head__meta { display: flex; gap: 16px; font-size: 13px; color: var(--oco-ink-70); flex-wrap: wrap; }

.oco-lesson-body { display: flex; flex-direction: column; gap: 16px; font-size: 16px; }
.oco-lesson-body p { line-height: 1.65; }
.oco-keypoints { display: flex; flex-direction: column; gap: 10px; padding: 18px; background: var(--oco-cream-soft); border-left: 2px solid var(--oco-green); border-radius: var(--oco-radius); }

.oco-tabs { border-bottom: 1px solid var(--oco-line); display: flex; gap: 20px; }
.oco-tab { background: none; border: 0; padding: 12px 2px; font-size: 14px; color: var(--oco-ink-70); cursor: pointer; position: relative; }
.oco-tab.is-active { color: var(--oco-ink); }
.oco-tab.is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--oco-green); }
.oco-tab-panel { display: none; padding-top: 18px; }
.oco-tab-panel.is-active { display: block; }

.oco-lesson-foot { border-top: 1px solid var(--oco-line); display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 24px; flex-wrap: wrap; }
.oco-lesson-nav { font-size: 14px; color: var(--oco-ink-70); }
.oco-lesson-nav:hover { color: var(--oco-green); }

/* ---------------------------------------------------------------- Aside (dashboard layout) */
.oco-aside { border-left: 1px solid var(--oco-line-soft); background: var(--oco-cream-soft); padding: 24px 20px; display: flex; flex-direction: column; gap: 24px; }
.oco-aside__title { font-size: 12px; font-weight: 700; text-transform: uppercase; color: var(--oco-green); }
.oco-next-card { background: var(--oco-card); padding: 16px; border-radius: var(--oco-radius); display: flex; flex-direction: column; gap: 10px; }

/* ---------------------------------------------------------------- Drawer */
.oco-scrim { position: fixed; inset: 0; background: rgba(20, 18, 14, 0.4); opacity: 0; visibility: hidden; transition: opacity 0.2s ease; z-index: 70; }
.oco-scrim.is-open { opacity: 1; visibility: visible; }
@media (max-width: 880px) {
  .oco-course-layout--2col, .oco-course-layout--3col { grid-template-columns: 1fr; }
  .oco-rail {
    position: fixed; top: 0; left: 0; bottom: 0; width: min(360px, 86vw); z-index: 80;
    transform: translateX(-100%); transition: transform 0.3s ease;
  }
  .oco-rail.is-open { transform: translateX(0); }
  .oco-rail__close { display: block; align-self: flex-end; background: none; border: 0; font-size: 22px; cursor: pointer; }
  .oco-topbar__menu { display: flex; align-items: center; justify-content: center; }
  .oco-topbar__prog { display: none; }
}
.oco-course-layout--focus .oco-rail {
  position: fixed; top: 0; left: 0; bottom: 0; width: min(380px, 86vw); z-index: 80;
  transform: translateX(-100%); transition: transform 0.3s ease;
}
.oco-course-layout--focus .oco-rail.is-open { transform: translateX(0); }
.oco-course-layout--focus .oco-rail__close { display: block; align-self: flex-end; background: none; border: 0; font-size: 22px; cursor: pointer; }
.oco-drawer-open { display: none; border: 1px solid var(--oco-line); background: none; padding: 8px 14px; border-radius: var(--oco-radius); cursor: pointer; }
.oco-course-layout--focus .oco-drawer-open { display: inline-flex; }
@media (max-width: 880px) {
  .oco-drawer-open { display: inline-flex !important; }
}

/* ---------------------------------------------------------------- Catalogue / sales page */
.oco-catalog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; padding: 32px 24px; max-width: 1200px; margin-inline: auto; }
.oco-catalog-card { background: var(--oco-card); border: 1px solid var(--oco-line-soft); border-radius: var(--oco-radius); overflow: hidden; display: flex; flex-direction: column; }
.oco-catalog-card__thumb { aspect-ratio: 16/10; background: var(--oco-cream-soft); object-fit: cover; }
.oco-catalog-card__body { padding: 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.oco-catalog-card__title { font-size: 18px; }
.oco-catalog-card__summary { font-size: 14px; color: var(--oco-ink-70); flex: 1; }
.oco-catalog-card__price { font-size: 15px; font-weight: 600; }

.oco-sales-hero { max-width: 860px; margin: 0 auto; padding: 48px 24px 24px; display: flex; flex-direction: column; gap: 16px; }
.oco-sales-hero__title { font-size: clamp(28px, 4vw, 42px); }
.oco-sales-price { font-size: 22px; font-weight: 700; }

/* ---------------------------------------------------------------- Checkout return state */
.oco-checkout-return { border-radius: var(--oco-radius); padding: 18px 20px; display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.oco-checkout-return__title { font-size: 16px; font-weight: 700; margin: 0; }
.oco-checkout-return--pending { background: var(--oco-cream-soft); border: 1px solid var(--oco-line-soft); }
.oco-checkout-return--done { background: rgba(107, 115, 80, 0.08); border: 1px solid var(--oco-green); }
.oco-checkout-return--done .oco-checkout-return__title { color: var(--oco-green-deep); }

/* ---------------------------------------------------------------- Locked states */
.oco-locked { max-width: 640px; margin: 64px auto; padding: 0 24px; display: flex; flex-direction: column; gap: 18px; text-align: center; align-items: center; }
.oco-locked__icon { width: 56px; height: 56px; color: var(--oco-green); }
.oco-locked__title { font-size: 24px; }
.oco-locked__text { color: var(--oco-ink-70); }
.oco-locked__countdown { font-size: 14px; font-weight: 600; color: var(--oco-green-deep); }

/* ---------------------------------------------------------------- Account area */
.oco-account { display: grid; grid-template-columns: 220px 1fr; gap: 0; min-height: calc(100vh - var(--oco-bar-h)); }
.oco-account__nav { border-right: 1px solid var(--oco-line-soft); background: var(--oco-cream-soft); padding: 24px 0; display: flex; flex-direction: column; }
.oco-account__nav a { padding: 10px 24px; font-size: 14px; color: var(--oco-ink-70); }
.oco-account__nav a.is-active { color: var(--oco-green-deep); font-weight: 600; background: rgba(107, 115, 80, 0.08); }
.oco-account__content { padding: 32px 28px; max-width: 900px; }
.oco-resume-card { background: var(--oco-card); border: 1px solid var(--oco-line-soft); border-radius: var(--oco-radius); padding: 22px; display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.oco-course-row { display: flex; align-items: center; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--oco-line-soft); }
.oco-course-row__title { flex: 1; }
.oco-note-item { padding: 14px 0; border-bottom: 1px solid var(--oco-line-soft); }
@media (max-width: 720px) {
  .oco-account { grid-template-columns: 1fr; }
  .oco-account__nav { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--oco-line-soft); }
}

/* ---------------------------------------------------------------- Messages ("Mes échanges") */
.oco-messages-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }

.oco-flash { padding: 12px 16px; border-radius: var(--oco-radius); font-size: 14px; margin-bottom: 20px; }
.oco-flash--success { background: rgba(107, 115, 80, 0.1); color: var(--oco-green-deep); border: 1px solid var(--oco-line); }
.oco-flash--error { background: rgba(180, 60, 40, 0.08); color: #8a3223; border: 1px solid rgba(180, 60, 40, 0.3); }

.oco-messages-list { display: flex; flex-direction: column; margin-bottom: 28px; border-top: 1px solid var(--oco-line-soft); }
.oco-messages-list__item { display: block; padding: 14px 4px; border-bottom: 1px solid var(--oco-line-soft); }
.oco-messages-list__item:hover { background: rgba(107, 115, 80, 0.05); }
.oco-messages-list__item.is-active { background: rgba(107, 115, 80, 0.08); }
.oco-messages-list__row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.oco-messages-list__preview { font-size: 14px; color: var(--oco-ink-70); margin: 4px 0; }
.oco-messages-list__date { font-size: 12px; color: var(--oco-ink-50); }
.oco-badge-unread { display: inline-flex; align-items: center; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: #fff; background: var(--oco-green); padding: 3px 9px; border-radius: 999px; white-space: nowrap; }

.oco-thread { border-top: 1px solid var(--oco-line); padding-top: 24px; display: flex; flex-direction: column; gap: 16px; }
.oco-thread__title { font-size: 20px; }
.oco-thread__lesson-link { font-size: 13px; color: var(--oco-green); align-self: flex-start; }
.oco-thread__lesson-link:hover { color: var(--oco-green-deep); }
.oco-thread__messages { display: flex; flex-direction: column; gap: 14px; }
.oco-message { max-width: 640px; padding: 12px 16px; border-radius: var(--oco-radius); background: var(--oco-cream-soft); }
.oco-message--creator { align-self: flex-start; }
.oco-message--learner { align-self: flex-end; background: var(--oco-card); border: 1px solid var(--oco-line-soft); }
.oco-message__author { font-size: 12px; font-weight: 700; color: var(--oco-green-deep); margin-bottom: 4px; }
.oco-message__body { font-size: 15px; line-height: 1.5; margin: 0 0 6px; }
.oco-message__date { font-size: 11px; color: var(--oco-ink-50); }
.oco-thread-form { display: flex; flex-direction: column; gap: 10px; }
.oco-thread-form__textarea { width: 100%; border: 1px solid var(--oco-line); border-radius: var(--oco-radius); padding: 12px 14px; font-family: inherit; font-size: 15px; resize: vertical; background: var(--oco-card); color: var(--oco-ink); }

.oco-compose__field { display: flex; flex-direction: column; gap: 6px; }
.oco-compose__label { font-size: 13px; font-weight: 700; color: var(--oco-ink-70); }
.oco-compose__target { width: 100%; border: 1px solid var(--oco-line); border-radius: var(--oco-radius); padding: 10px 14px; font-family: inherit; font-size: 15px; background: var(--oco-card); color: var(--oco-ink); }

/* ---------------------------------------------------------------- Meta/instructor blocks */
.oco-meta-row { display: flex; gap: 20px; flex-wrap: wrap; font-size: 14px; color: var(--oco-ink-70); padding: 12px 0; }
.oco-instructor { display: flex; gap: 14px; align-items: center; padding: 16px 0; }
.oco-instructor__avatar { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }