/* ==========================================================================
   KERTU ACADEMY — Workbook-Seiten (seitengenau nach dem Workbook)
   Ergänzt styles.css: Seitennavigation, Bilder & Sequenzen, Aufgaben,
   Wissenscheck, Zeichnungen, Selbsteinschätzung, Lightbox, Antworten.
   ========================================================================== */
.exam-head.compact { padding: 26px 34px; }
.exam-head.compact h1 { font-size: 28px; }

/* ---- Seitennavigation eines Kapitels ---------------------------------- */
.page-tabs { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px 12px; margin: -4px 0 14px; scrollbar-width: thin; }
.pt { flex: 0 0 auto; display: flex; align-items: center; gap: 8px; max-width: 230px; padding: 7px 12px 7px 7px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-size: 12.5px; color: var(--ink-2); transition: .15s; }
.pt:hover { border-color: var(--gold); }
.pt-n { width: 24px; height: 24px; flex-shrink: 0; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 11px; background: var(--bg-2); color: var(--ink-2); }
.pt-t { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pt.part .pt-n { background: var(--amber-soft); color: var(--amber); }
.pt.done .pt-n { background: var(--ok); color: #fff; }
.pt.info .pt-n { background: var(--gold-soft); color: var(--gold-d); }
.pt.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.pt.on .pt-n { background: var(--gold); color: #fff; }

/* ---- Seitenkarte ------------------------------------------------------- */
.wb-page { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 30px 36px 26px; }
.wb-page > * + * { margin-top: 20px; }
.wb-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.wb-meta { display: flex; align-items: center; gap: 14px; font-size: 12px; }
.saved-tag { color: var(--ok); font-weight: 700; opacity: 0; transition: opacity .2s; }
.saved-tag.show { opacity: 1; }
.wb-page .wb-title { font-size: 30px; letter-spacing: -.02em; line-height: 1.15; margin: 18px 0 0; }
.wb-page .wb-lead { font-size: 17px; color: var(--ink-2); margin-top: 8px; }
.wb-text p { color: var(--ink-2); margin: 0 0 10px; }

/* ---- Bilder ------------------------------------------------------------ */
.wb-fig { margin: 0; position: relative; }
.wb-fig img { display: block; width: 100%; height: auto; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--surface-2); cursor: zoom-in; }
.wb-fig figcaption { font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-top: 7px; }
.wb-fig.portrait { max-width: 420px; }
.wb-fig.portrait img { max-height: 560px; object-fit: cover; }
.wb-imgs { display: grid; gap: 12px; grid-template-columns: repeat(3, 1fr); }
.wb-imgs.n2 { grid-template-columns: repeat(2, 1fr); }
.wb-imgs.n4 { grid-template-columns: repeat(4, 1fr); }
.wb-imgs.n2 img, .wb-imgs.n4 img { aspect-ratio: 2 / 3; object-fit: cover; }
.wb-imgs.n3 img { aspect-ratio: 4 / 3; object-fit: cover; }
.num-badge { position: absolute; top: 7px; left: 7px; z-index: 1; background: var(--ink); color: #fff; font-size: 10.5px; font-weight: 800; padding: 3px 7px; border-radius: 5px; letter-spacing: .04em; pointer-events: none; }

/* Zweispaltig: Porträt links, Inhalt rechts (wie im Workbook) */
.wb-split { display: grid; grid-template-columns: minmax(0, 340px) 1fr; gap: 28px; align-items: start; }
.wb-split-r > * + * { margin-top: 18px; }
.wb-split .wb-fig.portrait { max-width: 100%; }
.wb-split .wb-cards { grid-template-columns: 1fr; }

/* ---- Step-by-Step-Sequenz ---------------------------------------------- */
.wb-steps { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.step-thumb { position: relative; padding: 0; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--line); background: var(--surface-2); cursor: zoom-in; transition: transform .12s, box-shadow .12s; }
.step-thumb:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.step-thumb img { display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; pointer-events: none; }
.wb-hint { font-size: 12px; color: var(--muted); margin-top: 8px !important; }

/* ---- Tabellen, Karten, Chips, Balken ----------------------------------- */
.wb-table-wrap { overflow-x: auto; }
.wb-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.wb-table thead th { background: var(--ink); color: #fff; font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; text-align: left; padding: 10px 14px; font-weight: 800; }
.wb-table thead th + th { color: var(--gold); }
.wb-table tbody th { text-align: left; font-weight: 700; padding: 12px 14px; vertical-align: top; width: 32%; }
.wb-table td { padding: 12px 14px; color: var(--ink-2); vertical-align: top; }
.wb-table tbody tr { border-bottom: 1px solid var(--line); }
.wb-table tbody tr:nth-child(odd) { background: var(--surface-2); }
.wb-cards { display: grid; gap: 12px; grid-template-columns: repeat(3, 1fr); }
.wb-cards.n2, .wb-cards.n4 { grid-template-columns: repeat(2, 1fr); }
.wb-card { background: var(--surface-2); border: 1px solid var(--line); border-bottom: 3px solid var(--gold); border-radius: var(--radius-sm); padding: 15px 16px; }
.wb-card-n { font-size: 11px; font-weight: 800; color: var(--gold-d); margin-right: 8px; }
.wb-card-l { display: inline; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; font-weight: 800; }
.wb-card-t { font-size: 13.5px; color: var(--ink-2); margin-top: 6px; }
.wb-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.wb-chips span { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; font-weight: 800; padding: 7px 14px; border-radius: 999px; background: var(--gold-soft); color: var(--gold-d); }
.wb-quote { background: var(--ink); color: #fff; border-left: 4px solid var(--gold); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 16px 22px; font-size: 13.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; line-height: 1.5; }
.wb-info { background: var(--surface-2); border: 1px dashed var(--line-2); border-radius: var(--radius-sm); padding: 13px 16px; font-size: 13.5px; color: var(--ink-2); }

/* ---- Symbolsystem ------------------------------------------------------ */
.wb-symbols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.sym { display: flex; gap: 14px; align-items: center; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px 14px; background: var(--surface-2); }
.sym-img { width: 64px; height: 52px; flex-shrink: 0; display: grid; place-items: center; background: #fff; border-radius: 8px; border: 1px solid var(--line); }
.sym-img img { max-width: 52px; max-height: 42px; }
.sym b { display: block; font-size: 14px; }
.sym span { font-size: 12.5px; color: var(--muted); }

/* ---- Aufgaben-Kasten (der beige Kasten aus dem Workbook) ---------------- */
.wb-task { background: var(--gold-soft); border-left: 4px solid var(--gold); border-radius: 0 var(--radius-md) var(--radius-md) 0; padding: 18px 22px; }
.wb-task-k { font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; font-weight: 800; color: var(--gold-d); margin-bottom: 6px; }
.wb-task p { margin: 0 0 12px; font-weight: 600; color: var(--ink); }
.wb-task textarea.answer { background: #fff; }

/* ---- Schreibfelder ------------------------------------------------------ */
.wb-fields { display: grid; gap: 14px; }
.wb-field { display: block; }
.wb-field-l { display: block; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; font-weight: 800; color: var(--gold-d); }
.wb-field-h { display: block; font-size: 14px; color: var(--ink); font-weight: 600; margin-top: 3px; }
.wb-field textarea.answer { margin-top: 7px; }
.wb-page textarea.answer { min-height: 0; }

/* ---- Wissenscheck ------------------------------------------------------- */
.wb-check .q-card { box-shadow: none; }
.q-card.marked-sicher { border-color: var(--ok-line); }
.q-card.marked-wiederholen { border-color: var(--amber-line); }
.q-card.marked-trainer { border-color: var(--redo-line); }
.q-card.marked-sicher .q-num { background: var(--ok); }
.q-card.marked-wiederholen .q-num { background: var(--amber); }
.q-card.marked-trainer .q-num { background: var(--redo); }
.grade.m-sicher.on { background: var(--ok-soft); color: var(--ok); border-color: var(--ok-line); }
.grade.m-wiederholen.on { background: var(--amber-soft); color: var(--amber); border-color: var(--amber-line); }
.grade.m-trainer.on { background: var(--redo-soft); color: var(--redo); border-color: var(--redo-line); }
.badge-g.sicher { background: var(--ok-soft); color: var(--ok); }
.badge-g.wiederholen { background: var(--amber-soft); color: var(--amber); }
.badge-g.trainer { background: var(--redo-soft); color: var(--redo); }

/* ---- Arbeitsschritte beschreiben --------------------------------------- */
.wb-example { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 18px; }
.wb-example p { margin: 4px 0; font-size: 13.5px; color: var(--ink-2); }
.desc-list { display: grid; gap: 10px; margin-top: 14px; }
.desc-row { display: grid; grid-template-columns: 120px 1fr; gap: 12px; align-items: center; }
.desc-thumb { position: relative; padding: 0; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; cursor: zoom-in; background: var(--surface-2); }
.desc-thumb img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; pointer-events: none; }

/* ---- Phasen WAS / WARUM ------------------------------------------------ */
.wb-phases { display: grid; gap: 12px; }
.phase { display: grid; grid-template-columns: 110px 1fr 1fr; gap: 12px; align-items: start; padding: 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface-2); }
.phase-n { font-weight: 800; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; padding-top: 6px; }
.phase label span { display: block; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; font-weight: 800; color: var(--gold-d); margin-bottom: 5px; }
.phase textarea.answer { background: #fff; }

/* ---- Zeichnung ---------------------------------------------------------- */
.dr-grid { display: grid; gap: 14px; }
.dr-grid.two { grid-template-columns: 1fr 1fr; }
.dr-mine { margin-top: 14px; background: var(--gold-soft); border-left: 4px solid var(--gold); border-radius: 0 var(--radius-md) var(--radius-md) 0; padding: 16px 20px; }
.dr-mine .wb-fig.mine { max-width: 520px; margin: 6px 0 12px; }
.dr-mine p { margin: 0 0 12px; font-size: 13.5px; }
.dr-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.dr-actions label { cursor: pointer; }
.dr-actions label.busy { opacity: .7; pointer-events: none; }

/* ---- Selbsteinschätzung & Checkliste ------------------------------------ */
.wb-rate { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.wb-rate-t { background: var(--ink); color: #fff; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; font-weight: 800; padding: 10px 14px; }
.rate-row { display: grid; grid-template-columns: 1fr 250px; gap: 12px; align-items: center; padding: 10px 14px; border-top: 1px solid var(--line); font-size: 14px; }
.rate-row:nth-child(even) { background: var(--surface-2); }
.rate-row .scale { gap: 6px; }
.rate-row .scale button { padding: 8px 0; }
.wb-checklist { display: grid; gap: 8px; }
.ck { display: flex; gap: 12px; align-items: flex-start; padding: 11px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); cursor: pointer; font-size: 14px; transition: .15s; }
.ck:hover { border-color: var(--gold); }
.ck input { width: 18px; height: 18px; accent-color: var(--gold-d); margin-top: 2px; flex-shrink: 0; }
.ck:has(input:checked) { background: var(--ok-soft); border-color: var(--ok-line); }

/* ---- Notizen ------------------------------------------------------------ */
.wb-notes { border-top: 1px solid var(--line); padding-top: 14px; }
.wb-notes summary { cursor: pointer; font-size: 11px; letter-spacing: .16em; text-transform: uppercase; font-weight: 800; color: var(--gold-d); }
.wb-notes textarea.answer { margin-top: 10px; }

/* ---- Lightbox ----------------------------------------------------------- */
body.no-scroll { overflow: hidden; }
.lightbox { position: fixed; inset: 0; z-index: 300; background: rgba(14, 14, 18, .93); display: grid; grid-template-columns: 64px 1fr 64px; align-items: center; }
.lightbox figure { margin: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100vh; padding: 40px 0; }
.lightbox img { max-width: 100%; max-height: calc(100vh - 110px); border-radius: 8px; box-shadow: 0 30px 80px rgba(0, 0, 0, .5); background: #fff; }
.lightbox figcaption { color: #d9d4c9; font-size: 13px; letter-spacing: .08em; margin-top: 14px; }
.lb-prev, .lb-next { color: #fff; font-size: 44px; height: 100%; opacity: .7; }
.lb-prev:hover, .lb-next:hover { opacity: 1; }
.lb-close { position: absolute; top: 16px; right: 20px; color: #fff; font-size: 24px; width: 44px; height: 44px; border-radius: 50%; background: rgba(255, 255, 255, .1); }

/* ---- Meine Antworten / Auswertung --------------------------------------- */
.review-page { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 14px 18px; margin-top: 10px; }
.rp-head { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.review-page .ans-row { padding: 12px 0; }
.ans-steps { margin: 0; padding-left: 0; list-style: none; }
.ans-steps li { margin: 3px 0; }
.ans-steps b { color: var(--gold-d); margin-right: 6px; }
.ans-rates { display: flex; flex-wrap: wrap; gap: 8px; }
.ans-rates span { font-size: 12.5px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 999px; padding: 4px 11px; }
.ans-rates b { color: var(--gold-d); margin-left: 4px; }
.ans-img { max-width: 360px; width: 100%; border-radius: var(--radius-sm); border: 1px solid var(--line); cursor: zoom-in; }
.ans-body { padding: 4px 14px 14px; }
.mark-panel { margin-bottom: 18px; }
.mark-panel h3 { margin-top: 0; }
.mark-panel.m-trainer { border-left: 4px solid var(--redo); }
.mark-panel.m-wiederholen { border-left: 4px solid var(--amber); }
.mark-q { display: flex; justify-content: space-between; gap: 14px; padding: 10px 0; border-top: 1px solid var(--line); font-size: 14px; font-weight: 600; }
.mark-q small { color: var(--muted); font-weight: 500; white-space: nowrap; }
.mark-q:hover { color: var(--gold-d); }
.talk-q { padding: 12px 0; border-top: 1px solid var(--line); }
.talk-q small { display: block; color: var(--muted); margin: 2px 0 8px; }

/* ---- Responsiv & Druck -------------------------------------------------- */
@media (max-width: 820px) {
  .wb-page { padding: 22px 18px; }
  .wb-page .wb-title { font-size: 24px; }
  .wb-split { grid-template-columns: 1fr; }
  .wb-split .wb-fig.portrait { max-width: 420px; }
  .wb-steps { grid-template-columns: repeat(4, 1fr); }
  .wb-imgs, .wb-imgs.n4, .wb-cards, .wb-symbols, .dr-grid.two { grid-template-columns: repeat(2, 1fr); }
  .wb-cards.n2, .wb-cards.n4 { grid-template-columns: 1fr; }
  .phase { grid-template-columns: 1fr; }
  .desc-row { grid-template-columns: 90px 1fr; }
  .rate-row { grid-template-columns: 1fr; }
  .mark-q { flex-direction: column; gap: 2px; }
  .lightbox { grid-template-columns: 40px 1fr 40px; }
}
@media (max-width: 520px) {
  .wb-cards, .wb-symbols, .dr-grid.two { grid-template-columns: 1fr; }
}
@media print {
  .page-tabs, .wb-notes, .dr-actions, .exam-foot, .lightbox { display: none !important; }
}