/* ==========================================================================
   FioMediTrainer – Stylesheet
   Mobile-first, ruhige medizinische Farbwelt (Teal), hohe Lesbarkeit.
   ========================================================================== */

:root {
  --c-primary: #0f766e;
  --c-primary-dark: #115e59;
  --c-primary-light: #ccfbf1;
  --c-bg: #f4f7f7;
  --c-card: #ffffff;
  --c-text: #1f2937;
  --c-muted: #6b7280;
  --c-border: #e5e7eb;
  --c-danger: #b91c1c;
  --c-ok: #15803d;
  --c-warn: #b45309;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 4px 14px rgba(0, 0, 0, .05);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ---- Kopfzeile ---- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 10px 16px;
  background: var(--c-primary); color: #fff;
  position: sticky; top: 0; z-index: 20;
  padding-top: max(10px, env(safe-area-inset-top));
}
.brand { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.05rem; }
.brand-icon { margin-right: 4px; }
.topnav { display: flex; align-items: center; gap: 14px; }
.topnav a { color: #d1fae5; text-decoration: none; font-size: .95rem; }
.topnav a:hover { color: #fff; }
.topnav .btn { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.4); }

.container { max-width: 900px; margin: 0 auto; padding: 16px; }

.footer { text-align: center; color: var(--c-muted); font-size: .8rem; padding: 24px 16px 40px; }

/* ---- Karten & Grid ---- */
.card {
  background: var(--c-card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 20px; margin-bottom: 16px;
}
.card h1 { margin: 0 0 6px; font-size: 1.4rem; }
.card h2 { margin: 4px 0 10px; font-size: 1.15rem; }
.card h3 { margin: 0 0 6px; }
.narrow { max-width: 560px; margin-left: auto; margin-right: auto; }
.center { text-align: center; }
.grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 640px) { .grid { grid-template-columns: 1fr 1fr; } }

.muted { color: var(--c-muted); }
.small { font-size: .85rem; }

/* ---- Buttons ---- */
.btn {
  display: inline-block; padding: 9px 16px; border-radius: 10px;
  border: 1px solid var(--c-border); background: #fff; color: var(--c-text);
  font-size: .95rem; cursor: pointer; text-decoration: none; text-align: center;
  transition: background .15s, transform .05s;
}
.btn:hover { background: #f3f4f6; }
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); }
.btn-danger { background: #fff; border-color: #fecaca; color: var(--c-danger); }
.btn-danger:hover { background: #fef2f2; }
.btn-small { padding: 5px 10px; font-size: .85rem; }
.btn-wide { width: 100%; }
.btn-icon { border: none; background: none; cursor: pointer; color: var(--c-muted); font-size: 1rem; }
.btn-icon:hover { color: var(--c-danger); }
.btn[disabled], .btn.loading { opacity: .55; pointer-events: none; }

/* ---- Formulare ---- */
label { display: block; margin: 14px 0 4px; font-weight: 600; font-size: .92rem; }
input[type="text"], input[type="number"], textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--c-border);
  border-radius: 10px; font: inherit; background: #fff;
}
input:focus, textarea:focus { outline: 2px solid var(--c-primary-light); border-color: var(--c-primary); }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; flex-wrap: wrap; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.upload-form { display: flex; gap: 10px; align-items: center; margin-top: 12px; flex-wrap: wrap; }
.upload-form input[type="file"] { flex: 1; min-width: 220px; }

.alert { padding: 12px 14px; border-radius: 10px; background: #fef9c3; border: 1px solid #fde047; margin-bottom: 14px; }
.alert-error { background: #fef2f2; border-color: #fecaca; color: var(--c-danger); }

.badge {
  display: inline-block; font-size: .72rem; padding: 2px 8px;
  border-radius: 999px; background: var(--c-primary-light); color: var(--c-primary-dark);
  vertical-align: middle;
}
.badge-share { background: #e0e7ff; color: #3730a3; }

/* ---- Dashboard ---- */
.hero { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.chapter-card { display: block; color: inherit; text-decoration: none; }
.chapter-card:hover { outline: 2px solid var(--c-primary-light); }
.chapter-card-head { display: flex; justify-content: space-between; align-items: start; gap: 8px; }
.chapter-card h2 { font-size: 1.05rem; margin: 0; }
.stats { list-style: none; display: flex; gap: 14px; padding: 0; margin: 8px 0 0; font-size: .85rem; color: var(--c-muted); flex-wrap: wrap; }
.stats .due { color: var(--c-warn); font-weight: 600; }

.progressbar { height: 8px; border-radius: 999px; background: var(--c-border); overflow: hidden; margin: 10px 0 4px; }
.progressbar-fill { height: 100%; background: linear-gradient(90deg, var(--c-primary), #14b8a6); border-radius: 999px; transition: width .4s; }

.progress-ring {
  --p: 0;
  width: 84px; height: 84px; border-radius: 50%; flex: none;
  background: conic-gradient(var(--c-primary) calc(var(--p) * 1%), var(--c-border) 0);
  display: grid; place-items: center; font-weight: 700;
}
.progress-ring span {
  background: var(--c-card); width: 62px; height: 62px; border-radius: 50%;
  display: grid; place-items: center; font-size: .95rem;
}
.progress-ring.big { width: 120px; height: 120px; margin: 12px auto; }
.progress-ring.big span { width: 90px; height: 90px; font-size: 1.3rem; }
.progress-ring.warn { background: conic-gradient(var(--c-warn) calc(var(--p) * 1%), var(--c-border) 0); }
.progress-ring.ok { background: conic-gradient(var(--c-ok) calc(var(--p) * 1%), var(--c-border) 0); }

/* ---- Kapitelseite ---- */
.breadcrumb { margin: 2px 0 12px; }
.breadcrumb a { color: var(--c-primary); text-decoration: none; }
.chapter-head { display: flex; justify-content: space-between; gap: 12px; align-items: start; flex-wrap: wrap; }
.doc-list { list-style: none; padding: 0; margin: 0 0 8px; }
.doc-list li {
  display: flex; align-items: center; gap: 10px; padding: 8px 0;
  border-bottom: 1px solid var(--c-border); flex-wrap: wrap;
}
.doc-list li:last-child { border-bottom: none; }
.doc-name { flex: 1; min-width: 180px; word-break: break-word; }
.doc-list form { margin-left: auto; }

.gen-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
@media (min-width: 640px) { .gen-grid { grid-template-columns: repeat(3, 1fr); } }
.gen-status {
  margin-top: 14px; padding: 12px 14px; border-radius: 10px;
  background: var(--c-primary-light); color: var(--c-primary-dark); font-size: .92rem;
}
.gen-status.error { background: #fef2f2; color: var(--c-danger); }
.learn-tile.disabled { opacity: .55; }

/* ---- Lernkarten-Training ---- */
.train-meta { display: flex; justify-content: space-between; margin-bottom: 10px; }
.flashcard {
  min-height: 230px; border: 2px solid var(--c-primary-light); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column; justify-content: center;
  text-align: center; cursor: pointer; background: #fff;
  font-size: 1.08rem;
}
.flashcard:focus { outline: 3px solid var(--c-primary-light); }
.flashcard-back { color: var(--c-primary-dark); white-space: pre-line; }
.hint { margin-top: 14px; }
.train-actions { display: flex; gap: 10px; margin-top: 16px; }
.train-actions.rating { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.train-actions.rating .btn { padding: 10px 4px; line-height: 1.25; }
.train-actions.rating small { font-weight: 400; color: var(--c-muted); font-size: .7rem; }
.rating-0 { border-color: #fecaca; } .rating-0:hover { background: #fef2f2; }
.rating-1 { border-color: #fed7aa; } .rating-1:hover { background: #fff7ed; }
.rating-2 { border-color: #bbf7d0; } .rating-2:hover { background: #f0fdf4; }
.rating-3 { border-color: #99f6e4; } .rating-3:hover { background: #f0fdfa; }

/* ---- Quiz & Prüfung ---- */
.quiz-question { font-size: 1.1rem; margin: 14px 0; }
.quiz-options { display: grid; gap: 8px; }
.quiz-option {
  display: flex; gap: 10px; align-items: flex-start; padding: 11px 13px;
  border: 1px solid var(--c-border); border-radius: 10px; cursor: pointer; background: #fff;
  text-align: left; font: inherit; width: 100%;
}
.quiz-option:hover { background: #f9fafb; }
.quiz-option.selected { border-color: var(--c-primary); background: var(--c-primary-light); }
.quiz-option.correct { border-color: var(--c-ok); background: #f0fdf4; }
.quiz-option.wrong { border-color: var(--c-danger); background: #fef2f2; }
.quiz-option input { margin-top: 3px; }
.quiz-explanation {
  margin-top: 12px; padding: 12px 14px; border-radius: 10px;
  background: #f0fdfa; border: 1px solid #99f6e4; font-size: .92rem;
}
.check-list { display: grid; gap: 6px; margin-bottom: 8px; }
.check-item { display: flex; gap: 8px; align-items: center; font-weight: 400; margin: 0; }

.exam-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.exam-timer {
  font-variant-numeric: tabular-nums; font-weight: 700; font-size: 1.2rem;
  background: var(--c-primary-light); color: var(--c-primary-dark);
  padding: 6px 14px; border-radius: 10px;
}
.exam-timer.low { background: #fef2f2; color: var(--c-danger); }
.exam-questions { padding-left: 0; list-style: none; }
.exam-question { margin: 18px 0; padding-top: 14px; border-top: 1px solid var(--c-border); }
.review-item { padding: 12px; border-radius: 10px; margin-bottom: 10px; border: 1px solid var(--c-border); }
.review-item.review-ok { border-color: #bbf7d0; }
.review-item.review-wrong { border-color: #fecaca; background: #fff7f7; }
.review-options { list-style: none; padding-left: 6px; margin: 6px 0; }
.review-options .is-correct { color: var(--c-ok); font-weight: 600; }
.review-options .is-wrong { color: var(--c-danger); }

/* ---- Podcast ---- */
.podcast-player { width: 100%; margin: 8px 0; }
.script-line { padding: 10px 14px; border-radius: 10px; margin: 8px 0; }
.script-host { background: #f0fdfa; }
.script-expert { background: #eef2ff; }

/* ---- Zusammenfassung (Prosa) ---- */
.prose h2 { margin-top: 22px; color: var(--c-primary-dark); }
.prose h3 { margin-top: 16px; }
.prose ul { padding-left: 22px; }
.prose li { margin: 4px 0; }
.prose hr { border: none; border-top: 1px solid var(--c-border); margin: 14px 0; }