@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&display=swap');

/* ============================================================
   redschool.css — RedSchool Lernplattform
   Design-Tokens übernommen von rw-index.css (/de/info)
   Präfix: rs-
   ============================================================ */

:root {
  --rs-bg:           #080808;
  --rs-bg-raised:    #101010;
  --rs-bg-card:      #141414;
  --rs-bg-hover:     #1c1c1c;
  --rs-border:       #1f1f1f;
  --rs-border-mid:   #2d2d2d;

  --rs-red:          #CC0E0E;
  --rs-red-hover:    #e01212;
  --rs-red-dim:      rgba(204, 14, 14, 0.12);
  --rs-red-glow:     0 0 24px rgba(204, 14, 14, 0.3);

  --rs-green:        #22C55E;
  --rs-green-dim:    rgba(34, 197, 94, 0.12);
  --rs-amber:        #F59E0B;
  --rs-amber-dim:    rgba(245, 158, 11, 0.12);
  --rs-purple:       #a855f7;
  --rs-purple-dim:   rgba(168, 85, 247, 0.12);

  --rs-text:         #e8e8e8;
  --rs-text-dim:     #888;
  --rs-text-faint:   #444;

  --rs-font:         'Inter', system-ui, -apple-system, sans-serif;
  --rs-display:      'Bebas Neue', var(--rs-font);
  --rs-mono:         'Share Tech Mono', 'Courier New', monospace;

  --rs-r:            8px;
  --rs-r-lg:         16px;
  --rs-t:            180ms ease;

  --rs-max:          1160px;
}

/* ── Basis ── */
.rs-page, .rs-page *, .rs-page *::before, .rs-page *::after {
  box-sizing: border-box;
}
.rs-page {
  background: var(--rs-bg);
  color: var(--rs-text);
  font-family: var(--rs-font);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
.rs-page img { display: block; max-width: 100%; }
.rs-page a { color: inherit; }

.rs-wrap {
  width: min(92vw, var(--rs-max));
  margin: 0 auto;
}

.rs-section { padding: 40px 0; }
.rs-section--tight { padding: 20px 0; }

/* ── RedSchool Topbar ── */
.rs-nav {
  position: sticky;
  top: 0;
  z-index: 180;
  background: rgba(8, 8, 8, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rs-border);
}
.rs-nav__inner {
  width: min(92vw, var(--rs-max));
  margin: 0 auto;
  height: 58px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.rs-nav__logo {
  font-family: var(--rs-mono);
  font-size: 17px;
  letter-spacing: 0.08em;
  text-decoration: none;
  white-space: nowrap;
}
.rs-nav__logo b { color: var(--rs-red); font-weight: normal; }
.rs-nav__links {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}
.rs-nav__link {
  font-size: 14px;
  color: var(--rs-text-dim);
  text-decoration: none;
  transition: color var(--rs-t);
  white-space: nowrap;
}
.rs-nav__link:hover, .rs-nav__link.is-active { color: var(--rs-text); }
.rs-nav__link.is-active { color: var(--rs-red-hover); }

/* ── Buttons ── */
.rs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: var(--rs-r);
  font-family: var(--rs-font);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--rs-t), border-color var(--rs-t), color var(--rs-t), box-shadow var(--rs-t), transform var(--rs-t);
  border: 1px solid transparent;
  white-space: nowrap;
  -webkit-appearance: none;
}
.rs-btn:active { transform: scale(0.98); }
.rs-btn--primary { background: var(--rs-red); color: #fff; border-color: var(--rs-red); }
.rs-btn--primary:hover { background: var(--rs-red-hover); border-color: var(--rs-red-hover); box-shadow: var(--rs-red-glow); color: #fff; }
.rs-btn--green { background: #16803c; color: #fff; border-color: #16803c; }
.rs-btn--green:hover { background: var(--rs-green); border-color: var(--rs-green); color: #fff; }
.rs-btn--outline { background: transparent; color: var(--rs-text); border-color: var(--rs-border-mid); }
.rs-btn--outline:hover { border-color: var(--rs-text-dim); background: rgba(255,255,255,0.04); }
.rs-btn--ghost { background: transparent; color: var(--rs-text-dim); border: none; }
.rs-btn--ghost:hover { color: var(--rs-text); background: rgba(255,255,255,0.05); }
.rs-btn--danger { background: transparent; color: #ef4444; border-color: rgba(239,68,68,0.4); }
.rs-btn--danger:hover { background: rgba(239,68,68,0.1); border-color: #ef4444; }
.rs-btn--sm { padding: 7px 13px; font-size: 13px; }
.rs-btn--lg { padding: 14px 28px; font-size: 15px; }
.rs-btn--block { width: 100%; }
.rs-btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* ── Hero ── */
.rs-hero {
  padding: 64px 0 40px;
  background:
    radial-gradient(ellipse 60% 50% at 50% -10%, rgba(204,14,14,0.14), transparent),
    var(--rs-bg);
  border-bottom: 1px solid var(--rs-border);
}
.rs-hero__kicker {
  font-family: var(--rs-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--rs-red-hover);
  margin: 0 0 10px;
}
.rs-hero__title {
  font-family: var(--rs-display);
  font-size: clamp(40px, 7vw, 72px);
  font-weight: normal;
  letter-spacing: 0.02em;
  line-height: 1.02;
  margin: 0 0 12px;
  color: #fff;
}
.rs-hero__title b { color: var(--rs-red); font-weight: normal; }
.rs-hero__sub {
  color: var(--rs-text-dim);
  font-size: 17px;
  max-width: 560px;
  margin: 0 0 28px;
}

/* Suche */
.rs-search {
  display: flex;
  gap: 10px;
  max-width: 560px;
}
.rs-search__input {
  flex: 1;
  padding: 12px 16px;
  background: var(--rs-bg-card);
  border: 1px solid var(--rs-border-mid);
  border-radius: var(--rs-r);
  color: var(--rs-text);
  font-family: var(--rs-font);
  font-size: 15px;
  outline: none;
  transition: border-color var(--rs-t);
}
.rs-search__input:focus { border-color: var(--rs-red); }
.rs-search__input::placeholder { color: var(--rs-text-faint); }

/* ── Section-Header ── */
.rs-h2 {
  font-family: var(--rs-display);
  font-size: 28px;
  font-weight: normal;
  letter-spacing: 0.04em;
  color: #fff;
  margin: 0 0 4px;
}
.rs-h2 b { color: var(--rs-red); font-weight: normal; }
.rs-section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.rs-section__hint { color: var(--rs-text-dim); font-size: 14px; margin: 0; }
.rs-section__more {
  font-size: 14px;
  color: var(--rs-text-dim);
  text-decoration: none;
  transition: color var(--rs-t);
}
.rs-section__more:hover { color: var(--rs-red-hover); }

/* ── Kategorie-Chips ── */
.rs-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.rs-cat {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 18px;
  background: var(--rs-bg-card);
  border: 1px solid var(--rs-border);
  border-radius: 999px;
  text-decoration: none;
  color: var(--rs-text);
  font-size: 14px;
  transition: border-color var(--rs-t), background var(--rs-t), transform var(--rs-t);
}
.rs-cat:hover {
  border-color: var(--rs-red);
  background: var(--rs-bg-hover);
  transform: translateY(-1px);
}
.rs-cat__icon { font-size: 17px; line-height: 1; }
.rs-cat__count {
  font-size: 12px;
  color: var(--rs-text-dim);
  background: var(--rs-bg-raised);
  border: 1px solid var(--rs-border);
  padding: 1px 8px;
  border-radius: 999px;
}

/* ── Kurs-Karten-Grid ── */
.rs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: 18px;
}
.rs-card {
  display: flex;
  flex-direction: column;
  background: var(--rs-bg-card);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-r-lg);
  overflow: hidden;
  text-decoration: none;
  transition: border-color var(--rs-t), transform var(--rs-t), box-shadow var(--rs-t);
}
.rs-card:hover {
  border-color: var(--rs-border-mid);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
}
.rs-card__thumb {
  height: 145px;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--rs-border);
  position: relative;
}
.rs-card__thumb--empty {
  background: linear-gradient(135deg, #2a0505 0%, var(--rs-bg-raised) 80%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--rs-display);
  font-size: 30px;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.14);
}
.rs-card__body {
  padding: 15px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  flex: 1;
}
.rs-card__cat {
  font-family: var(--rs-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rs-red-hover);
}
.rs-card__title {
  font-size: 15.5px;
  font-weight: 600;
  color: #fff;
  margin: 0;
  line-height: 1.35;
}
.rs-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--rs-text-dim);
  font-size: 12.5px;
  margin-top: auto;
}
.rs-card__price { color: #fff; font-weight: 600; font-size: 14px; }
.rs-card__price--free { color: var(--rs-green); }

/* Fortschrittsbalken */
.rs-progress {
  height: 5px;
  background: var(--rs-bg-raised);
  border-radius: 999px;
  overflow: hidden;
}
.rs-progress__bar {
  height: 100%;
  background: linear-gradient(90deg, var(--rs-red), var(--rs-red-hover));
  border-radius: 999px;
  transition: width 300ms ease;
}
.rs-progress__bar--done { background: var(--rs-green); }
.rs-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--rs-text-dim);
  margin-bottom: 5px;
}

/* ── Badges ── */
.rs-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  border: 1px solid transparent;
  white-space: nowrap;
}
.rs-badge--red    { background: var(--rs-red-dim);    color: #ff6b6b;        border-color: rgba(204,14,14,0.35); }
.rs-badge--green  { background: var(--rs-green-dim);  color: var(--rs-green); border-color: rgba(34,197,94,0.3); }
.rs-badge--amber  { background: var(--rs-amber-dim);  color: var(--rs-amber); border-color: rgba(245,158,11,0.3); }
.rs-badge--purple { background: var(--rs-purple-dim); color: var(--rs-purple); border-color: rgba(168,85,247,0.3); }
.rs-badge--dim    { background: var(--rs-bg-raised);  color: var(--rs-text-dim); border-color: var(--rs-border-mid); }

/* ── Flash-Meldungen ── */
.rs-flash {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--rs-r);
  font-size: 14px;
  margin: 16px 0;
  border: 1px solid;
}
.rs-flash--success { background: var(--rs-green-dim); border-color: rgba(34,197,94,0.4); color: var(--rs-green); }
.rs-flash--error   { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.4); color: #ef4444; }
.rs-flash--warning { background: var(--rs-amber-dim); border-color: rgba(245,158,11,0.4); color: var(--rs-amber); }

/* ── Kurs-Detailseite ── */
.rs-course {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
  align-items: start;
  padding: 36px 0 64px;
}
.rs-course__crumb {
  font-size: 13.5px;
  color: var(--rs-text-dim);
  margin-bottom: 16px;
}
.rs-course__crumb a { color: var(--rs-text-dim); text-decoration: none; }
.rs-course__crumb a:hover { color: var(--rs-text); }
.rs-course__title {
  font-family: var(--rs-display);
  font-size: clamp(30px, 4.6vw, 46px);
  font-weight: normal;
  letter-spacing: 0.02em;
  line-height: 1.05;
  color: #fff;
  margin: 10px 0 8px;
}
.rs-course__sub { color: var(--rs-text-dim); font-size: 16px; margin: 0 0 16px; }
.rs-course__badges { display: flex; flex-wrap: wrap; gap: 8px; }

.rs-panel {
  background: var(--rs-bg-card);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-r-lg);
  padding: 22px;
}
.rs-panel + .rs-panel { margin-top: 20px; }
.rs-panel__title {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 14px;
}

/* Kauf-Box (Sidebar) */
.rs-buybox {
  position: sticky;
  top: 78px;
  background: var(--rs-bg-card);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-r-lg);
  overflow: hidden;
}
.rs-buybox__thumb { height: 165px; background-size: cover; background-position: center; border-bottom: 1px solid var(--rs-border); }
.rs-buybox__body { padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.rs-buybox__price {
  font-family: var(--rs-display);
  font-size: 34px;
  letter-spacing: 0.03em;
  color: #fff;
  line-height: 1;
}
.rs-buybox__price small { font-family: var(--rs-font); font-size: 12.5px; color: var(--rs-text-dim); display: block; margin-top: 6px; letter-spacing: 0; }
.rs-buybox__meta { display: flex; flex-direction: column; gap: 8px; font-size: 13.5px; color: var(--rs-text-dim); }
.rs-buybox__meta span { display: flex; align-items: center; gap: 8px; }

/* Curriculum */
.rs-lessons { display: flex; flex-direction: column; gap: 6px; }
.rs-lesson-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  background: var(--rs-bg-raised);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-r);
  text-decoration: none;
  transition: border-color var(--rs-t), background var(--rs-t);
}
a.rs-lesson-row:hover { border-color: var(--rs-border-mid); background: var(--rs-bg-hover); }
.rs-lesson-row--locked { opacity: 0.55; }
.rs-lesson-row__num {
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  border-radius: 50%;
  background: var(--rs-bg-card);
  border: 1px solid var(--rs-border-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12.5px;
  color: var(--rs-text-dim);
}
.rs-lesson-row__num--done {
  background: var(--rs-green-dim);
  border-color: rgba(34,197,94,0.5);
  color: var(--rs-green);
}
.rs-lesson-row__title { flex: 1; font-size: 14.5px; color: var(--rs-text); min-width: 0; }
.rs-lesson-row__meta { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--rs-text-faint); }

/* ── Lektion (Lern-Ansicht) ── */
.rs-learn {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding: 28px 0 64px;
}
.rs-learn__side {
  position: sticky;
  top: 78px;
  background: var(--rs-bg-card);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-r-lg);
  padding: 18px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}
.rs-learn__course {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  display: block;
  margin-bottom: 4px;
}
.rs-learn__course:hover { color: var(--rs-red-hover); }
.rs-learn__list { display: flex; flex-direction: column; gap: 4px; margin-top: 14px; }
.rs-learn__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--rs-r);
  text-decoration: none;
  font-size: 13.5px;
  color: var(--rs-text-dim);
  border: 1px solid transparent;
  transition: background var(--rs-t), color var(--rs-t);
}
.rs-learn__item:hover { background: var(--rs-bg-hover); color: var(--rs-text); }
.rs-learn__item.is-current {
  background: var(--rs-red-dim);
  border-color: rgba(204,14,14,0.35);
  color: #fff;
}
.rs-learn__check {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  border-radius: 50%;
  border: 1px solid var(--rs-border-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: transparent;
}
.rs-learn__item.is-done .rs-learn__check {
  background: var(--rs-green-dim);
  border-color: rgba(34,197,94,0.6);
  color: var(--rs-green);
}
.rs-learn__title {
  font-family: var(--rs-display);
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: normal;
  letter-spacing: 0.02em;
  line-height: 1.08;
  color: #fff;
  margin: 6px 0 20px;
}
.rs-learn__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

/* Inhalts-Typografie (lessonHtml / contentHtml) */
.rs-prose { color: #ccc; line-height: 1.75; font-size: 15.5px; }
.rs-prose h1, .rs-prose h2, .rs-prose h3, .rs-prose h4 { color: #fff; line-height: 1.3; margin: 1.4em 0 0.5em; }
.rs-prose h1:first-child, .rs-prose h2:first-child, .rs-prose h3:first-child { margin-top: 0; }
.rs-prose p { margin: 0 0 1em; }
.rs-prose a { color: var(--rs-red-hover); }
.rs-prose ul, .rs-prose ol { padding-left: 1.4em; margin: 0 0 1em; }
.rs-prose li { margin-bottom: 0.35em; }
.rs-prose img { border-radius: var(--rs-r); margin: 1em 0; }
.rs-prose blockquote {
  border-left: 3px solid var(--rs-red);
  padding: 4px 0 4px 16px;
  margin: 1.2em 0;
  color: var(--rs-text-dim);
}
.rs-prose code {
  background: var(--rs-bg-raised);
  border: 1px solid var(--rs-border);
  border-radius: 4px;
  padding: 1px 6px;
  font-family: var(--rs-mono);
  font-size: 0.9em;
}
.rs-prose pre {
  background: var(--rs-bg-raised);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-r);
  padding: 14px 16px;
  overflow-x: auto;
  margin: 1.2em 0;
}
.rs-prose pre code { background: none; border: none; padding: 0; }
.rs-prose iframe, .rs-prose video { max-width: 100%; border-radius: var(--rs-r); border: 1px solid var(--rs-border); }
.rs-prose table { border-collapse: collapse; width: 100%; margin: 1.2em 0; }
.rs-prose th, .rs-prose td { border: 1px solid var(--rs-border-mid); padding: 8px 12px; text-align: left; }

/* Downloads */
.rs-download {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--rs-bg-raised);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-r);
  text-decoration: none;
  color: var(--rs-text);
  font-size: 14px;
  transition: border-color var(--rs-t);
}
.rs-download:hover { border-color: var(--rs-red); }

/* ── Formulare (Admin) ── */
.rs-form { display: flex; flex-direction: column; gap: 16px; }
.rs-form__row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.rs-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.rs-label { font-size: 13px; color: var(--rs-text-dim); font-weight: 500; }
.rs-label small { color: var(--rs-text-faint); font-weight: 400; }
.rs-input, .rs-select, .rs-textarea {
  width: 100%;
  padding: 10px 13px;
  background: var(--rs-bg-raised);
  border: 1px solid var(--rs-border-mid);
  border-radius: var(--rs-r);
  color: var(--rs-text);
  font-family: var(--rs-font);
  font-size: 14px;
  outline: none;
  transition: border-color var(--rs-t);
}
.rs-input:focus, .rs-select:focus, .rs-textarea:focus { border-color: var(--rs-red); }
.rs-textarea { resize: vertical; min-height: 110px; line-height: 1.5; }
.rs-textarea--code { font-family: var(--rs-mono); font-size: 13px; min-height: 220px; }
.rs-check {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  color: var(--rs-text);
  cursor: pointer;
  user-select: none;
}
.rs-check input { width: 16px; height: 16px; accent-color: var(--rs-red); cursor: pointer; }

/* ── Tabellen (Admin) ── */
.rs-table-wrap { overflow-x: auto; border: 1px solid var(--rs-border); border-radius: var(--rs-r-lg); background: var(--rs-bg-card); }
.rs-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
.rs-table th {
  text-align: left;
  padding: 12px 16px;
  color: var(--rs-text-dim);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--rs-border);
  white-space: nowrap;
}
.rs-table td { padding: 12px 16px; border-bottom: 1px solid var(--rs-border); vertical-align: middle; }
.rs-table tr:last-child td { border-bottom: none; }
.rs-table tbody tr { transition: background var(--rs-t); }
.rs-table tbody tr:hover { background: var(--rs-bg-hover); }
.rs-table a { text-decoration: none; }
.rs-table__title { color: #fff; font-weight: 500; }
.rs-table__title:hover { color: var(--rs-red-hover); }
.rs-table__actions { display: flex; gap: 6px; justify-content: flex-end; white-space: nowrap; }

/* ── Admin-Statistik-Kacheln ── */
.rs-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }
.rs-stat {
  background: var(--rs-bg-card);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-r-lg);
  padding: 18px 20px;
}
.rs-stat__value {
  font-family: var(--rs-display);
  font-size: 32px;
  letter-spacing: 0.03em;
  color: #fff;
  line-height: 1;
}
.rs-stat__value--red { color: var(--rs-red-hover); }
.rs-stat__value--green { color: var(--rs-green); }
.rs-stat__label { color: var(--rs-text-dim); font-size: 13px; margin-top: 6px; }

/* Admin-Subnav */
.rs-admin-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 20px 0;
}
.rs-admin-tab {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  text-decoration: none;
  color: var(--rs-text-dim);
  border: 1px solid var(--rs-border);
  background: var(--rs-bg-card);
  transition: color var(--rs-t), border-color var(--rs-t);
}
.rs-admin-tab:hover { color: var(--rs-text); border-color: var(--rs-border-mid); }
.rs-admin-tab.is-active { color: #fff; border-color: var(--rs-red); background: var(--rs-red-dim); }

/* Aufklappbares "Neu erstellen"-Panel */
.rs-collapse > summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
}
.rs-collapse > summary::-webkit-details-marker { display: none; }
.rs-collapse[open] > summary { margin-bottom: 16px; }

/* Leerzustand */
.rs-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--rs-text-dim);
  font-size: 14.5px;
  background: var(--rs-bg-card);
  border: 1px dashed var(--rs-border-mid);
  border-radius: var(--rs-r-lg);
}
.rs-empty__icon { font-size: 34px; margin-bottom: 10px; }

/* ── Payment-Tabs (Kurs kaufen) ── */
.rs-tabs { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.rs-tab {
  flex: 1;
  min-width: 70px;
  padding: 8px 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--rs-r);
  color: var(--rs-text-dim);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  text-align: center;
}
.rs-tab.active { background: var(--rs-red-dim); border-color: var(--rs-red); color: #fff; }
.rs-content { display: none; }
.rs-content.active { display: block; }

/* ── Responsive ── */
@media (max-width: 960px) {
  .rs-course { grid-template-columns: 1fr; }
  .rs-buybox { position: static; order: -1; }
  .rs-learn { grid-template-columns: 1fr; }
  .rs-learn__side { position: static; max-height: none; order: 2; }
}
@media (max-width: 640px) {
  .rs-nav__inner { gap: 10px; overflow-x: auto; }
  .rs-hero { padding: 40px 0 28px; }
  .rs-section { padding: 28px 0; }
  .rs-search { flex-direction: column; }
}