/* Lern-App im Kacheldesign (Palette DiktaGo/kacheldesign-SKILL.md, dunkel nach TextGo/Projektkonzept.md §6.2) */
:root {
  --cream: #F5F1EB; --cream-light: #FAF7F2; --cream-warm: #EDE4D3; --paper: #FFFFFF;
  --ink: #141413; --ink-body: #2E2A24; --ink-soft: #5C544A; --ink-muted: #8B7F70;
  --clay: #C96442; --clay-deep: #A04E32; --clay-soft: #F0E0D2; --clay-bg: #FAEEE3;
  --moss: #6B7F5F; --moss-soft: #DDE4D2; --rot: #B3412E; --rot-soft: #F6DDD6;
  --line: #DDD4C2; --line-soft: #EDE6D8; --code-bg: #2B2622; --code-text: #E8DFD0;
  --display: "Fraunces", Charter, Georgia, serif; --body: "Noto Serif", Georgia, serif; --mono: "JetBrains Mono", "SF Mono", Menlo, monospace;
  --ui: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: light;
}
:root[data-farbe="dunkel"] {
  --cream: #1A1613; --cream-light: #221E18; --cream-warm: #332D24; --paper: #2A251E;
  --ink: #F4EEE3; --ink-body: #E4DCCD; --ink-soft: #B5AB9A; --ink-muted: #8E8473;
  --clay: #D9785A; --clay-deep: #E68B6B; --clay-soft: #3D2C23; --clay-bg: #322420;
  --moss: #8FA67E; --moss-soft: #2B3324; --rot: #E07A66; --rot-soft: #3A221D;
  --line: #383229; --line-soft: #2C271F; --code-bg: #12100D; --code-text: #E8DFD0;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--cream); color: var(--ink-body); font: 17px/1.62 var(--body); }
a { color: var(--clay-deep); }
:root[data-farbe="dunkel"] a { color: var(--clay); }
button { font: inherit; color: inherit; }
h1, h2, h3 { font-family: var(--display); color: var(--ink); font-weight: 500; line-height: 1.2; margin: 0 0 .4em; }
h1 { font-size: clamp(30px, 6vw, 46px); font-variation-settings: "opsz" 144; letter-spacing: -.01em; }
h2 { font-size: clamp(22px, 4vw, 28px); }
h3 { font-size: 19px; }
h1 em, h2 em { color: var(--clay); font-style: italic; }
code { font: .86em var(--mono); background: var(--cream-warm); padding: .1em .35em; border-radius: 4px; }
pre { background: var(--code-bg); color: var(--code-text); font: 13.5px/1.55 var(--mono); padding: 14px 16px; border-radius: 10px; overflow-x: auto; margin: 0; }
pre code { background: none; padding: 0; font-size: inherit; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--cream-warm); font: 600 13px var(--ui); color: var(--ink-soft); }
.tabelle { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }

/* Rahmen */
.kopf { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--cream) 92%, transparent); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft); }
.kopf-innen { max-width: 980px; margin: 0 auto; display: flex; align-items: center; gap: 18px; padding: 10px 18px; }
.marke { font: 500 19px var(--display); color: var(--ink); text-decoration: none; margin-right: auto; }
.marke em { color: var(--clay); }
.nav { display: flex; gap: 4px; }
.nav a { font: 500 14px var(--ui); color: var(--ink-soft); text-decoration: none; padding: 7px 12px; border-radius: 8px; }
.nav a.aktiv { background: var(--clay-bg); color: var(--clay-deep); }
:root[data-farbe="dunkel"] .nav a.aktiv { color: var(--clay); }
.nav .zahl { font-size: 11px; background: var(--clay); color: #fff; border-radius: 9px; padding: 0 6px; margin-left: 4px; vertical-align: 1px; }
.sync { width: 9px; height: 9px; border-radius: 50%; background: var(--moss); flex: none; }
.sync.offen { background: var(--ink-muted); } .sync.fehler { background: var(--rot); }
main { max-width: 980px; margin: 0 auto; padding: 26px 18px 120px; }
@media (max-width: 720px) {
  /* backdrop-filter machte den Kopf zum Bezugsrahmen der festen Leiste: Leiste landete oben statt unten */
  .kopf { backdrop-filter: none; background: var(--cream); }
  .kopf .nav { position: fixed; bottom: 0; left: 0; right: 0; justify-content: space-around; padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
    background: var(--cream-light); border-top: 1px solid var(--line); }
  .nav a { display: flex; flex-direction: column; align-items: center; font-size: 12px; padding: 6px 10px; }
  main { padding-top: 18px; }
  body { font-size: 16.5px; }
}

/* Bausteine */
.eyebrow { font: 600 12px var(--ui); letter-spacing: .09em; text-transform: uppercase; color: var(--clay); margin-bottom: 6px; }
.lede { font-size: 19px; color: var(--ink-soft); max-width: 640px; }
.leise { color: var(--ink-muted); font: 14px var(--ui); }
.karte { background: var(--cream-light); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.raster { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 270px), 1fr)); }
.abschnitt { margin: 34px 0 14px; display: flex; align-items: baseline; gap: 12px; }
.abschnitt .nr { font: 500 15px var(--mono); color: var(--clay); }
.knopf { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 18px; border-radius: 10px; border: 0;
  background: var(--clay); color: #fff; font: 600 15px var(--ui); text-decoration: none; cursor: pointer; transition: background .12s; }
.knopf:hover { background: var(--clay-deep); }
.knopf.zart { background: var(--clay-bg); color: var(--clay-deep); }
:root[data-farbe="dunkel"] .knopf.zart { color: var(--clay); }
.knopf.rand { background: transparent; border: 1px solid var(--line); color: var(--ink-soft); }
.knopf.voll { width: 100%; }
.knopf:disabled { opacity: .45; cursor: default; }
.knopfreihe { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.pille { display: inline-block; font: 600 11.5px var(--ui); padding: 2px 9px; border-radius: 99px; background: var(--cream-warm); color: var(--ink-soft); white-space: nowrap; }
.pille.beherrscht, .pille.fertig, .pille.bekannt { background: var(--moss-soft); color: var(--moss); }
.pille.luecke { background: var(--clay-bg); color: var(--clay-deep); }
:root[data-farbe="dunkel"] .pille.luecke { color: var(--clay); }
.pille.teilweise { background: var(--clay-soft); color: var(--ink-body); }
.balken { height: 6px; background: var(--line-soft); border-radius: 3px; overflow: hidden; }
.balken i { display: block; height: 100%; background: var(--clay); }
.balken.gruen i { background: var(--moss); }
.meldung { padding: 10px 14px; border-radius: 10px; font: 15px var(--ui); background: var(--cream-warm); }
.meldung.fehler { background: var(--rot-soft); color: var(--rot); }
.meldung.ok { background: var(--moss-soft); color: var(--moss); }

/* Heute */
.weiter { display: flex; gap: 14px; align-items: center; padding: 20px 22px; border-radius: 16px; background: #141413; color: #F5F1EB;
  text-decoration: none; margin: 22px 0; }
:root[data-farbe="dunkel"] .weiter { background: var(--paper); }
.weiter .titel { font: 500 21px var(--display); }
.weiter .pfeil { margin-left: auto; font-size: 26px; color: var(--clay); }
.zahlen { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; }
.zahl-kachel { padding: 14px 16px; }
.zahl-kachel b { display: block; font: 500 34px var(--display); color: var(--ink); font-variation-settings: "opsz" 144; }
.zahl-kachel span { font: 13px var(--ui); color: var(--ink-muted); }

/* Kursübersicht */
.modul { display: block; text-decoration: none; color: inherit; transition: border-color .12s; }
.modul:hover, .zeile:hover { border-color: var(--clay); }
.modul b { display: block; font: 500 19px var(--display); color: var(--ink); margin-bottom: 4px; }
.modul .balken { margin-top: 12px; }
.zeilen { display: flex; flex-direction: column; gap: 8px; }
.zeile { display: flex; align-items: center; gap: 12px; padding: 12px 16px; text-decoration: none; color: inherit; }
.zeile .t { flex: 1; min-width: 0; }
.zeile .t b { display: block; font: 600 16px var(--ui); color: var(--ink); }
.zeile .t span { font: 13.5px var(--ui); color: var(--ink-muted); }
.haken { width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--line); flex: none; display: grid; place-items: center; font: 700 13px var(--ui); color: #fff; }
.haken.fertig, .haken.bekannt { background: var(--moss); border-color: var(--moss); }
.haken.begonnen { border-color: var(--clay); }

/* Lektion */
.lektion { max-width: 720px; margin: 0 auto; }
.kern { font: italic 22px/1.4 var(--display); color: var(--ink); border-left: 3px solid var(--clay); padding: 4px 0 4px 18px; margin: 20px 0 26px; }
.lektion > .block { margin: 20px 0; }
.md p { margin: 0 0 .8em; } .md p:last-child { margin-bottom: 0; }
.md ul, .md ol { margin: 0 0 .8em; padding-left: 1.3em; } .md li { margin: .2em 0; }
.kacheln { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); }
.kachel { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; font-size: 15.5px; }
.kachel h4 { font: 500 17px var(--display); color: var(--ink); margin: 0 0 6px; }
.kachel.clay { background: var(--clay-bg); border-color: var(--clay-soft); }
.kachel.moss { background: var(--moss-soft); border-color: transparent; }
.kachel.dunkel { background: #141413; color: #EDE4D3; border-color: #141413; }
.kachel.dunkel h4 { color: #F0E0D2; }
.kachel.dunkel code { background: #332D24; }
:root[data-farbe="dunkel"] .kachel.dunkel { background: #0F0D0B; }
.schritte { counter-reset: s; display: flex; flex-direction: column; gap: 10px; }
.schritt { display: flex; gap: 14px; }
.schritt::before { counter-increment: s; content: counter(s); flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--clay); color: #fff;
  font: 600 14px var(--ui); display: grid; place-items: center; margin-top: 2px; }
.schritt b { font-family: var(--ui); color: var(--ink); }
.hinweis { border-radius: 12px; padding: 14px 16px; background: var(--moss-soft); font-size: 15.5px; }
.hinweis.warnung { background: var(--clay-bg); }
.ergaenzung { border: 1px dashed var(--ink-muted); border-radius: 12px; padding: 14px 16px; font-size: 15.5px; }
.ergaenzung::before { content: "Ergänzung, nicht aus dem Kurs"; display: block; font: 600 11.5px var(--ui); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: 6px; }
.code-titel { font: 12px var(--mono); color: var(--ink-muted); margin-bottom: 4px; }
.praxis { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); }
.praxis > div { padding: 14px 16px; font-size: 15.5px; }
.praxis .kurs { background: var(--cream-light); } .praxis .du { background: var(--clay-bg); }
.praxis .urteil { grid-column: 1 / -1; background: #141413; color: #EDE4D3; font: italic 16px var(--display); }
:root[data-farbe="dunkel"] .praxis .urteil { background: #0F0D0B; }
.praxis .eyebrow { margin-bottom: 4px; }
@media (max-width: 560px) { .praxis { grid-template-columns: 1fr; } }

/* Übungen */
.uebung { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 18px; margin: 16px 0; }
.uebung .frage { font: 600 16.5px/1.45 var(--ui); color: var(--ink); margin-bottom: 12px; }
.uebung .art { font: 600 11px var(--ui); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: 6px; }
.optionen { display: flex; flex-direction: column; gap: 8px; }
.option { text-align: left; padding: 11px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--cream-light); cursor: pointer; font: 15.5px/1.45 var(--ui); }
.option:hover { border-color: var(--clay); }
.option.gewaehlt { border-color: var(--clay); background: var(--clay-bg); }
.option.richtig { border-color: var(--moss); background: var(--moss-soft); }
.option.falsch { border-color: var(--rot); background: var(--rot-soft); }
.option.verpasst { border-style: dashed; border-color: var(--moss); }
.erklaerung { margin-top: 12px; font: 15px/1.55 var(--ui); padding: 12px 14px; border-radius: 10px; background: var(--cream-warm); }
.erklaerung b.ok { color: var(--moss); } .erklaerung b.nein { color: var(--rot); }
.sortier { display: flex; align-items: center; gap: 8px; }
.sortier .option { flex: 1; cursor: default; }
.pfeile { display: flex; flex-direction: column; gap: 2px; }
.pfeile button { width: 34px; height: 24px; border: 1px solid var(--line); background: var(--cream-light); border-radius: 6px; cursor: pointer; font-size: 12px; }
.zuordnung { display: flex; flex-direction: column; gap: 10px; }
.zuordnung .item { padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--cream-light); font: 15px var(--ui); }
.zuordnung .item.richtig { border-color: var(--moss); } .zuordnung .item.falsch { border-color: var(--rot); }
.gruppenwahl { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.gruppenwahl button { padding: 4px 11px; border-radius: 99px; border: 1px solid var(--line); background: var(--paper); font: 13px var(--ui); cursor: pointer; }
.gruppenwahl button.an { background: var(--clay); border-color: var(--clay); color: #fff; }
.codezeilen { background: var(--code-bg); border-radius: 10px; padding: 6px 0; overflow-x: auto; }
.codezeilen button { display: flex; width: 100%; text-align: left; border: 0; background: none; color: var(--code-text); font: 13.5px/1.6 var(--mono);
  padding: 2px 14px 2px 10px; border-left: 4px solid transparent; cursor: pointer; white-space: pre-wrap; word-break: break-word; }
.codezeilen button:hover { background: rgba(255,255,255,.05); }
.codezeilen button.markiert { border-left-color: var(--clay); background: rgba(201,100,66,.22); }
.codezeilen button.richtig { border-left-color: var(--moss); background: rgba(107,127,95,.35); }
.codezeilen button.falsch { border-left-color: var(--rot); background: rgba(179,65,46,.3); }
.codezeilen button.verpasst { border-left-color: var(--moss); border-left-style: dashed; }
.codezeilen .nr { color: #8E8473; flex: none; width: 2.2em; user-select: none; }
textarea { width: 100%; min-height: 160px; font: 15px/1.5 var(--ui); padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--cream-light); color: var(--ink-body); resize: vertical; }
textarea:focus, input:focus { outline: 2px solid var(--clay); border-color: var(--clay); }
.bewertung { margin-top: 14px; }
.punkte { font: 500 40px var(--display); color: var(--ink); }
.pruefliste { list-style: none; padding: 0; margin: 10px 0; font: 15px var(--ui); }
.pruefliste li { padding: 4px 0 4px 26px; position: relative; }
.pruefliste li::before { content: "○"; position: absolute; left: 4px; color: var(--ink-muted); }
.pruefliste li.ja::before { content: "✓"; color: var(--moss); font-weight: 700; }
.pruefliste li.nein::before { content: "✗"; color: var(--rot); font-weight: 700; }

/* Karteikarten */
.karteikarte { min-height: 260px; display: flex; flex-direction: column; justify-content: center; text-align: center; padding: 30px 24px; cursor: pointer;
  background: var(--paper); border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 8px 28px rgba(60,40,20,.08); }
.karteikarte .v { font: 500 23px/1.35 var(--display); color: var(--ink); }
.karteikarte .r { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 17px; }
.karteikarte .wo { font: 12.5px var(--ui); color: var(--ink-muted); margin-top: 18px; }
.bewerten { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 16px; }
.bewerten .knopf { flex-direction: column; gap: 0; padding: 10px 6px; }
.bewerten .knopf small { font-weight: 400; opacity: .85; font-size: 12px; }

/* Simulationen */
.sim { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.sim .eyebrow { margin-bottom: 10px; }
.fenster { display: flex; height: 34px; border-radius: 8px; overflow: hidden; border: 1px solid var(--line); background: var(--cream-light); }
.fenster i { display: block; height: 100%; transition: width .25s; }
.legende { display: flex; flex-wrap: wrap; gap: 6px 14px; font: 13px var(--ui); color: var(--ink-soft); margin: 8px 0 12px; }
.legende span::before { content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 3px; background: var(--f); margin-right: 5px; }
.sim .knopfreihe { margin-top: 10px; }
.sim .knopf { padding: 8px 12px; font-size: 13.5px; }
.git-graph { font: 13.5px/1.7 var(--mono); background: var(--code-bg); color: var(--code-text); border-radius: 10px; padding: 12px 14px; overflow-x: auto; white-space: pre; min-height: 120px; }

/* Anmeldung */
body.login { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.login-form { width: 100%; max-width: 360px; font-family: var(--ui); }
.login-form h1 { font-size: 30px; margin-bottom: 18px; }
.login-form label { display: block; font-size: 14px; color: var(--ink-soft); margin: 12px 0 4px; }
.login-form input { width: 100%; font: inherit; padding: 11px 12px; border: 1px solid var(--line); border-radius: 9px; background: var(--paper); color: var(--ink); }
.login-form .knopf { margin-top: 20px; }
@media (prefers-color-scheme: dark) { body.login { --cream: #1A1613; --cream-light: #221E18; --paper: #2A251E; --ink: #F4EEE3; --ink-soft: #B5AB9A; --line: #383229; --clay: #D9785A; } }