/* ==========================================================================
   Promptability – Lernpfad /lernen/ · setzt tokens.css, components.css voraus
   ========================================================================== */

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

/* --- Fortschritt-Zähler im Abschnittskopf -------------------------------- */
.path__overall { grid-column: 10 / -1; justify-self: end; text-align: right; }
.path__overall .t-meta { margin-bottom: 6px; }
.path__overall .t-data { font-size: 15px; color: var(--ink); }

/* --- Die Wegübersicht ------------------------------------------------------ */
.path { border-top: 1px solid var(--ink); }
.path__row a {
  display: grid; grid-template-columns: 40px minmax(0, 1fr) auto 20px;
  align-items: center; gap: 8px 16px; padding: 15px 0;
  border-bottom: 1px solid var(--rule); color: var(--ink); text-decoration: none;
}
.path__nr { color: var(--ink-3); }
.path__title { font-size: 17px; font-weight: 500; letter-spacing: -.012em; line-height: 1.3; }
.path__sub {
  display: block; margin-top: 3px; font-family: var(--font-mono); font-size: 11.5px;
  letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3); font-weight: 400;
}
.path__prog { display: flex; align-items: center; gap: 10px; }
.path__bar { width: 72px; height: 4px; background: var(--rule); overflow: hidden; }
.path__bar i { display: block; height: 100%; width: 0; background: var(--ink); transition: width var(--dur-2) var(--ease); }
.path__count { white-space: nowrap; color: var(--ink-3); }
.path__arr { color: var(--ink-3); transition: transform var(--dur-1) var(--ease); }
.path__row a:hover .path__title { color: var(--blue); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .18em; }
.path__row a:hover .path__arr { transform: translateX(3px); color: var(--ink); }

/* --- Filterleiste ---------------------------------------------------------- */
.learn-controls { border-top: 1px solid var(--ink); padding: 22px 0 30px; display: grid; gap: 14px; }
.chip-group { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 8px 16px; align-items: start; }
.chip-group > .t-meta { padding-top: 8px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.learn-controls__row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 16px 32px; margin-top: 8px; }
.learn-search { display: grid; gap: 8px; width: min(340px, 100%); }
.learn-search input {
  height: 44px; padding: 0 14px; border: 1px solid var(--line); border-radius: var(--radius-1);
  background: var(--surface); color: var(--ink); font: 400 16px/1 var(--font-sans);
}
.learn-search input::placeholder { color: var(--ink-3); }
.learn-search input:hover { border-color: var(--ink-2); }
.learn-search input:focus-visible { border-color: var(--blue); outline: var(--focus); outline-offset: 1px; }
.learn-result { color: var(--ink-3); padding-bottom: 12px; }
body:not(.js) .learn-controls, body:not(.js) .path__bar, body:not(.js) .path__count,
body:not(.js) .path__overall { display: none; }

/* --- Module ----------------------------------------------------------------- */
.learn-module {
  border-top: 1px solid var(--ink);
  padding: clamp(36px, 4vw, 56px) 0 clamp(48px, 5vw, 72px);
  scroll-margin-top: 24px;
}
.learn-module.is-hidden { display: none; }
.learn-module__head { grid-column: 1 / span 4; }
.learn-module__head .t-meta { display: block; margin-bottom: 14px; }
.learn-module__head h2 {
  font-size: clamp(22px, 2vw, 27px); line-height: 1.14; font-weight: 500;
  letter-spacing: -.022em; text-wrap: balance;
}
.learn-module__intro { margin-top: 16px; font-size: 16px; line-height: 1.55; color: var(--ink-2); max-width: 38ch; }
.learn-module__body { grid-column: 6 / -1; min-width: 0; }
.learn-label { display: block; margin-bottom: 12px; }

.learn-list li { position: relative; padding-left: 1.1em; }
.learn-list li + li { margin-top: .45em; }
.learn-list li::before { content: "–"; position: absolute; left: 0; color: var(--ink-3); }

.learn-milestone { margin: 26px 0 30px; }

/* --- Ressourcenliste ---------------------------------------------------------- */
.res-list { border-top: 1px solid var(--rule); }
.res {
  display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 0 18px;
  padding: 17px 0 19px; border-bottom: 1px solid var(--rule);
}
.res.is-hidden { display: none; }
.res__box { position: absolute; width: 1px; height: 1px; opacity: 0; }
.res__mark {
  grid-column: 1; margin-top: 3px; width: 20px; height: 20px;
  border: 1px solid var(--line); border-radius: var(--radius-1);
  display: inline-grid; place-items: center; cursor: pointer;
  transition: background-color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.res__mark::after {
  content: ""; width: 10px; height: 5px; border-left: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper); transform: rotate(-45deg) translateY(-1px); opacity: 0;
}
.res__mark:hover { border-color: var(--ink); }
.res__box:checked + .res__mark { background: var(--ink); border-color: var(--ink); }
.res__box:checked + .res__mark::after { opacity: 1; }
.res__box:focus-visible + .res__mark { outline: var(--focus); outline-offset: var(--focus-offset); }
.res__body { grid-column: 2; min-width: 0; }
.res__top { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.res__link { font-size: 17px; font-weight: 500; letter-spacing: -.012em; }
.res__why { margin-top: 6px; font-size: 15px; line-height: 1.5; color: var(--ink-2); max-width: 64ch; }
.res__meta { margin-top: 10px; display: flex; flex-wrap: wrap; align-items: center; gap: 5px 10px; color: var(--ink-3); }
.res.is-done .res__link { color: var(--ink-3); text-decoration: line-through; text-decoration-thickness: 1px; }
.res.is-done .res__why, .res.is-done .res__meta { color: var(--ink-3); }
.res.is-done .res__why { opacity: .75; }

/* Niveau-Anzeige: 3 Kästchen, gefüllt = Niveau */
.lvl { display: inline-flex; gap: 3px; margin-right: 2px; }
.lvl i { display: block; width: 5px; height: 10px; background: var(--rule); }
.lvl i.on { background: var(--ink-3); }

/* --- FAQ -------------------------------------------------------------------- */
.faq { border-top: 1px solid var(--ink); }
.faq summary {
  display: flex; align-items: baseline; justify-content: space-between; gap: 8px 24px;
  padding: 18px 0; cursor: pointer; list-style: none;
  font-size: 17px; font-weight: 500; letter-spacing: -.012em; color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-mono); font-weight: 400; color: var(--ink-3); flex: none; transform: translateY(-1px); }
.faq details[open] summary::after { content: "–"; }
.faq details { border-bottom: 1px solid var(--rule); }
.faq__a { padding: 2px 36px 22px 0; max-width: 62ch; }
.faq__a p { font-size: 15.5px; line-height: 1.6; color: var(--ink-2); }

/* --- Breakpoints --------------------------------------------------------------- */
@media (max-width: 1024px) {
  .path__overall { grid-column: 1 / -1; justify-self: start; text-align: left; display: flex; gap: 12px; align-items: baseline; }
  .learn-module__head { grid-column: 1 / span 5; }
  .learn-module__body { grid-column: 7 / -1; }
}
@media (max-width: 860px) {
  .learn-module__head { grid-column: 1 / -1; margin-bottom: 20px; }
  .learn-module__intro { max-width: 60ch; }
  .learn-module__body { grid-column: 1 / span 11; }
}
@media (max-width: 640px) {
  .path__row a { grid-template-columns: 30px minmax(0, 1fr) 16px; }
  .path__prog { grid-column: 2; order: 4; margin-top: 6px; }
  .path__bar { width: 56px; }
  .chip-group { grid-template-columns: 1fr; }
  .chip-group > .t-meta { padding-top: 0; }
  .learn-controls__row { align-items: stretch; flex-direction: column; gap: 14px; }
  .learn-search { width: 100%; }
  .learn-result { padding-bottom: 0; }
  .learn-module__body { grid-column: 1 / -1; }
  .faq__a { padding-right: 0; }
}