/* Видеокурсы (routes/kurs): список /kurs/ и урок /kurs/view/... Общее с базой знаний - вид крошек и пейджера */

.ks--public { padding-top: 40px; padding-bottom: 96px; }
.ks > * + * { margin-top: 24px; }
.ks-head a, .ks-text a, .ks-extra a { color: var(--brand); }
.ks-label { font-size: 12px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); }

/* ---------- шапка списка ---------- */
.ks-head { max-width: 760px; }
.ks-head h1 { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.15; letter-spacing: -.02em; font-weight: 800; }
.ks-head p { margin-top: 12px; font-size: 15px; line-height: 1.6; }

/* отступ сверху - от .ks > * + *, поэтому margin не сбрасываем целиком */
.ks-goals { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; list-style: none; margin-bottom: 0; padding: 0; }
.ks-goals li { display: flex; gap: 12px; padding: 16px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.ks-goals i { flex-shrink: 0; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: var(--brand-soft); color: var(--brand); font-size: 20px; }
.ks-goals b { display: block; font-size: 14px; }
.ks-goals span { display: block; margin-top: 2px; font-size: 13px; line-height: 1.45; color: var(--text-2); }
@media (max-width: 1100px) { .ks-goals { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .ks-goals { grid-template-columns: 1fr; } }

/* ---------- карточка курса ---------- */
.ks-list { display: flex; flex-direction: column; gap: 40px; }
.ks > .ks-list { margin-top: 48px; }
.ks-card { display: grid; grid-template-columns: 240px minmax(0, 1fr); overflow: hidden; }
.ks-card__cover { display: grid; place-items: center; padding: 20px; background: var(--cover); }
.ks-card__cover img { width: 100%; max-width: 180px; max-height: 180px; object-fit: contain; transition: transform .3s var(--ease); }
.ks-card:hover .ks-card__cover img { transform: scale(1.04); }
.ks-card__body { padding: 32px 36px; }
.ks-card__top { display: flex; align-items: center; gap: 8px 12px; flex-wrap: wrap; font-size: 13px; }
.ks-card h2 { margin-top: 12px; font-size: 20px; line-height: 1.3; }
.ks .ks-card h2 a { color: var(--text); }
.ks .ks-card h2 a:hover { color: var(--brand); }
.ks-card > .ks-card__body > p { margin-top: 8px; font-size: 14px; line-height: 1.6; }
.ks-card__points { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 24px; margin: 18px 0 0; padding: 0; list-style: none; font-size: 14px; }
.ks-card__points li { position: relative; padding-left: 22px; line-height: 1.45; }
.ks-card__points li i { position: absolute; left: 0; top: 1px; color: var(--success); font-size: 17px; }
.ks-card__actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 24px; }
@media (max-width: 760px) {
  .ks-card { grid-template-columns: 1fr; }
  .ks-card__cover { height: 150px; }
  .ks-card__cover img { max-height: 120px; }
  .ks-card__body { padding: 22px 20px 24px; }
  .ks-list { gap: 24px; }
  .ks-card__points { grid-template-columns: 1fr; }
}

/* ---------- крошки ---------- */
.ks-crumbs { display: flex; align-items: center; gap: 4px 6px; flex-wrap: wrap; font-size: 13px; color: var(--text-3); }
.ks .ks-crumbs a { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); font-weight: 600; }
.ks .ks-crumbs a:hover { color: var(--brand); }
.ks-crumbs i { font-size: 16px; }
.ks-crumbs span { color: var(--text); font-weight: 600; }

/* ---------- урок ---------- */
.ks-lesson { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 24px; align-items: start; }
.ks-main { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.ks-player { overflow: hidden; aspect-ratio: 16 / 9; background: #000; }
.ks-player iframe { display: block; width: 100%; height: 100%; border: 0; }

.ks-info { padding: 28px 32px; }
.ks-info__meta { display: flex; gap: 6px 16px; flex-wrap: wrap; font-size: 13px; }
.ks-info__meta span { display: inline-flex; align-items: center; gap: 6px; }
.ks-info h1 { margin-top: 10px; font-size: clamp(22px, 2.6vw, 28px); line-height: 1.25; letter-spacing: -.01em; font-weight: 800; }

.ks-chapters { margin-top: 20px; }
.ks-chapters ol { list-style: none; margin: 8px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px 16px; }
.ks-chapters button {
  display: flex; align-items: baseline; gap: 10px; width: 100%; padding: 6px 8px; margin-left: -8px;
  border: 0; border-radius: var(--radius-sm); background: none; color: var(--text); font: inherit; font-size: 14px; text-align: left; cursor: pointer;
}
.ks-chapters button span { flex-shrink: 0; min-width: 42px; color: var(--brand); font-weight: 700; font-size: 13px; }
.ks-chapters button:hover, .ks-chapters button.is-active { background: var(--brand-soft); }
@media (max-width: 640px) { .ks-chapters ol { grid-template-columns: 1fr; } }

.ks-text { margin-top: 20px; font-size: 15px; line-height: 1.65; color: var(--text-2); overflow-wrap: anywhere; }
.ks-text p + p { margin-top: 12px; }

.ks-extra { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 14px; font-weight: 600; }
.ks-extra a { display: inline-flex; align-items: center; gap: 6px; }
.ks-extra i { font-size: 18px; }

.ks-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.ks .ks-pager__link {
  display: flex; flex-direction: column; gap: 4px; padding: 14px 16px;
  border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-weight: 600; font-size: 14px; line-height: 1.4;
  transition: border-color .15s, color .15s;
}
.ks .ks-pager__link:hover { border-color: var(--brand); color: var(--brand); }
.ks-pager__link .subtle { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; }
.ks-pager__link--next { grid-column: 2; text-align: right; align-items: flex-end; }
@media (max-width: 640px) { .ks-pager { grid-template-columns: 1fr; } .ks-pager__link--next { grid-column: auto; } }

/* ---------- программа курса ---------- */
.ks-program {
  position: sticky; top: calc(var(--topbar-h) + 20px);
  display: flex; flex-direction: column; max-height: calc(100vh - var(--topbar-h) - 40px); overflow: hidden;
}
.ks--public .ks-program { top: 92px; max-height: calc(100vh - 112px); }
.ks-program__head { padding: 18px 20px 14px; border-bottom: 1px solid var(--border); }
.ks-program__head .subtle { margin-top: 4px; font-size: 13px; }
.ks-program__list { position: relative; overflow-y: auto; padding: 6px 0; }

.ks-module + .ks-module { border-top: 1px solid var(--border); }
.ks-module summary {
  display: flex; align-items: center; gap: 10px; padding: 12px 20px; cursor: pointer; list-style: none;
  font-size: 14px; font-weight: 700;
}
.ks-module summary::-webkit-details-marker { display: none; }
.ks-module summary:hover { color: var(--brand); }
.ks-module__name { flex: 1; }
.ks-module summary i { font-size: 18px; color: var(--text-3); transition: transform .2s var(--ease); }
.ks-module[open] summary i { transform: rotate(180deg); }
.ks-module ol { list-style: none; margin: 0; padding: 0 10px 10px; }
.ks-module__soon { padding: 0 20px 14px; font-size: 13px; }

.ks .ks-item { display: flex; gap: 12px; padding: 8px 10px; border-radius: var(--radius-sm); color: var(--text); }
.ks .ks-item:hover { background: var(--surface-hover); }
.ks .ks-item.is-current { background: var(--brand-soft); }
.ks-item__thumb { position: relative; flex-shrink: 0; width: 96px; height: 54px; border-radius: 6px; overflow: hidden; background: var(--surface-2); }
.ks-item__thumb img { width: 100%; height: 100%; object-fit: cover; }
.ks-item__thumb i {
  display: none; position: absolute; right: 4px; bottom: 4px; width: 18px; height: 18px; border-radius: 50%;
  place-items: center; background: var(--success); color: #fff; font-size: 14px;
}
.ks-item.is-watched .ks-item__thumb i { display: grid; }
.ks-item__text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.ks-item__title { font-size: 13px; font-weight: 600; line-height: 1.35; }
.ks-item.is-current .ks-item__title { color: var(--brand-soft-text); }
.ks-item__text .subtle { font-size: 12px; }

@media (max-width: 1100px) {
  .ks-lesson { grid-template-columns: 1fr; }
  .ks-program, .ks--public .ks-program { position: static; max-height: none; }
  .ks-program__list { max-height: 520px; }
}
@media (max-width: 640px) { .ks-info { padding: 22px 18px; } }