/* Mikro-Fortbildung KI – Kursoberfläche
   Schriften bewusst systemseitig: keine externen Font-CDNs, damit beim
   Aufruf keine Verbindung zu Dritten aufgebaut wird. */

:root {
  --bg: #f5f2ea;
  --surface: #ffffff;
  --surface-2: #ece6d8;
  --border: #ddd4bf;
  --ink: #22262b;
  --ink-soft: #5b6270;
  --ink-faint: #8b8f7c;

  --accent: #2b577d;
  --accent-soft: #dbe6ed;
  --accent-ink: #16324a;

  --f-spr: #2d6b78;  --f-spr-soft: #dbe9eb;
  --f-mint: #55694a; --f-mint-soft: #e3e9db;
  --f-gew: #7a3b49;  --f-gew-soft: #f1dee2;
  --f-aes: #8a6a2f;  --f-aes-soft: #f2e7ce;

  --ok: #47693f;     --ok-soft: #e3ecdd;
  --warn: #a6472c;   --warn-soft: #f6e3da;

  --serif: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  --mono: 'SFMono-Regular', Menlo, Consolas, 'Liberation Mono', monospace;

  --radius: 14px;
  --shadow: 0 1px 2px rgba(34,38,43,0.06), 0 4px 14px rgba(34,38,43,0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1d22;
    --surface: #23262c;
    --surface-2: #2b2e35;
    --border: #3a3e46;
    --ink: #ece8de;
    --ink-soft: #adb2bd;
    --ink-faint: #7c8290;
    --accent: #7ba7cc;
    --accent-soft: #26374a;
    --accent-ink: #d7e6f2;
    --f-spr: #79b6c2;  --f-spr-soft: #21383d;
    --f-mint: #9ab389; --f-mint-soft: #2b3728;
    --f-gew: #cd8b96;  --f-gew-soft: #3a2429;
    --f-aes: #d3b168;  --f-aes-soft: #3a3021;
    --ok: #93b487;     --ok-soft: #2a3527;
    --warn: #d98a6f;   --warn-soft: #3a271f;
    --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 6px 20px rgba(0,0,0,0.35);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 780px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }
.wrap-wide { max-width: 960px; }

a { color: var(--accent); }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 700; text-wrap: balance; }
h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); line-height: 1.1; margin: 0 0 0.5rem; }
h2 { font-size: 1.45rem; margin: 0 0 0.6rem; }
h3 { font-size: 1.12rem; margin: 0 0 0.4rem; }

.eyebrow {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 0.7rem;
}
.lede { color: var(--ink-soft); font-size: 1.02rem; max-width: 62ch; }

/* Kopfleiste mit Fortschritt */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: var(--bg); border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 780px; margin: 0 auto; padding: 0.7rem 1.25rem;
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
}
.brand {
  font-family: var(--serif); font-weight: 700; font-size: 0.98rem;
  text-decoration: none; color: var(--ink);
}
.brand span { color: var(--ink-faint); font-family: var(--mono); font-size: 0.72rem; display: block; font-weight: 400; }
.progress-wrap { flex: 1; min-width: 140px; display: flex; align-items: center; gap: 0.6rem; }
.progress {
  flex: 1; height: 6px; background: var(--surface-2);
  border-radius: 99px; overflow: hidden;
}
.progress-bar { height: 100%; width: 0; background: var(--accent); transition: width 0.35s ease; }
.progress-txt { font-family: var(--mono); font-size: 0.72rem; color: var(--ink-faint); white-space: nowrap; }

.fach-badge {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.05em;
  text-transform: uppercase; padding: 0.25rem 0.6rem; border-radius: 99px;
  background: var(--fs, var(--surface-2)); color: var(--f, var(--ink-soft));
  border: 1px solid var(--f, var(--border));
}

/* Karten und Blöcke */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 1.5rem 1.6rem; margin-bottom: 1.1rem;
}
.card.flat { box-shadow: none; }

.note {
  background: var(--accent-soft); border: 1px solid var(--border);
  border-radius: 10px; padding: 0.9rem 1.1rem; font-size: 0.92rem;
}
.note.warn { background: var(--warn-soft); border-color: var(--warn); }
.note.ok { background: var(--ok-soft); border-color: var(--ok); }

.prompt-block, pre.prompt {
  font-family: var(--mono); font-size: 0.82rem; line-height: 1.65;
  background: var(--surface-2); border-radius: 8px; padding: 0.9rem 1rem;
  white-space: pre-wrap; word-break: break-word; margin: 0;
}

/* Fächerauswahl */
.fach-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.9rem; }
.fach-card {
  text-align: left; cursor: pointer; font: inherit; color: inherit;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 6px solid var(--f); border-radius: 0 10px 10px 0;
  padding: 1.1rem 1.2rem; transition: transform 0.12s ease, box-shadow 0.15s ease;
}
.fach-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.fach-card:focus-visible { outline: 2px solid var(--f); outline-offset: 2px; }
.fach-card[aria-pressed="true"] { background: var(--fs); }
.fach-card .fname { font-family: var(--serif); font-weight: 700; font-size: 1.1rem; color: var(--f); display: block; }
.fach-card .flist { font-size: 0.83rem; color: var(--ink-soft); }

/* Schritte / Bausteine */
.bausteine { display: grid; gap: 0.8rem; }
.baustein {
  display: grid; grid-template-columns: 2rem 1fr; gap: 0.8rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 0.9rem 1rem;
}
.baustein .bnum {
  font-family: var(--mono); font-size: 0.75rem; color: var(--accent); padding-top: 0.2rem;
}
.baustein label { font-weight: 600; font-size: 0.95rem; display: block; margin-bottom: 0.15rem; }
.baustein .bhint { font-size: 0.83rem; color: var(--ink-soft); margin-bottom: 0.5rem; }

input[type="text"], textarea {
  width: 100%; font: inherit; font-size: 0.92rem;
  background: var(--bg); color: var(--ink);
  border: 1px solid var(--border); border-radius: 8px; padding: 0.55rem 0.7rem;
}
textarea { font-family: var(--mono); font-size: 0.84rem; line-height: 1.6; min-height: 190px; resize: vertical; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

/* Buttons */
.btn {
  font: inherit; font-size: 0.9rem; font-weight: 600; cursor: pointer;
  background: var(--accent); color: #fff; border: 1px solid var(--accent);
  border-radius: 99px; padding: 0.6rem 1.2rem;
  transition: filter 0.15s ease;
}
.btn:hover { filter: brightness(1.08); }
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.quiet { background: transparent; color: var(--ink-soft); border-color: var(--border); font-weight: 500; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; filter: none; }
.btn-row { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center; margin-top: 1rem; }

/* Feedback-Anzeige */
.fb-head { display: flex; align-items: center; gap: 0.9rem; margin-bottom: 0.9rem; flex-wrap: wrap; }
.score {
  font-family: var(--serif); font-size: 1.6rem; font-weight: 700;
  color: var(--accent); line-height: 1;
}
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.03em;
  padding: 0.22rem 0.6rem; border-radius: 99px;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--ink-faint);
}
.chip.on { background: var(--ok-soft); border-color: var(--ok); color: var(--ok); }
.hints { margin: 0.4rem 0 0; padding-left: 1.15rem; font-size: 0.89rem; }
.hints li { margin-bottom: 0.4rem; }
.hints .fix { font-family: var(--mono); font-size: 0.8rem; background: var(--surface-2); padding: 0.1em 0.35em; border-radius: 4px; }

.ai-out {
  font-size: 0.9rem; white-space: pre-wrap; word-break: break-word;
  background: var(--surface-2); border-radius: 8px; padding: 0.9rem 1rem; margin-top: 0.8rem;
}

.spinner {
  display: inline-block; width: 0.9rem; height: 0.9rem; vertical-align: -1px;
  border: 2px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .spinner { animation: none; }
  .fach-card { transition: none; }
  .progress-bar { transition: none; }
}

/* Modulübersicht */
.mod-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.mod {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem 1.3rem;
  display: flex; flex-direction: column; gap: 0.4rem;
}
.mod .mnum { font-family: var(--mono); font-size: 0.72rem; color: var(--accent); letter-spacing: 0.08em; }
.mod h3 { margin: 0; }
.mod p { font-size: 0.88rem; color: var(--ink-soft); margin: 0; flex: 1; }
.mod .status {
  font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--ink-faint); margin-top: 0.5rem;
}
.mod.aktiv { border-color: var(--accent); }
.mod.aktiv .status { color: var(--accent); }

.steps-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.steps-list li {
  display: grid; grid-template-columns: 1.6rem 1fr; gap: 0.7rem;
  font-size: 0.92rem; align-items: baseline;
}
.steps-list .n { font-family: var(--mono); font-size: 0.75rem; color: var(--accent); }

.sammlung-item { border-bottom: 1px solid var(--border); padding: 0.9rem 0; }
.sammlung-item:last-child { border-bottom: none; }
.sammlung-item h4 { margin: 0 0 0.4rem; font-size: 1rem; }

footer.site {
  margin-top: 2.5rem; padding-top: 1.2rem; border-top: 1px solid var(--border);
  font-family: var(--mono); font-size: 0.73rem; color: var(--ink-faint);
  display: flex; justify-content: space-between; gap: 0.6rem; flex-wrap: wrap;
}

@media (max-width: 640px) {
  .fach-grid, .mod-grid { grid-template-columns: 1fr; }
  .card { padding: 1.2rem 1.1rem; }
}