/* Kursplattform 28Solutions: eigenständiges Stylesheet im Markenlook. */

@font-face {
  font-family: 'Space Grotesk';
  src: url('fonts/SpaceGrotesk.woff2') format('woff2');
  font-weight: 300 700;
  font-display: swap;
}

:root {
  --bg: #0b0f16;
  --panel: #121826;
  --panel2: #161e2e;
  --line: rgba(111, 159, 216, 0.16);
  --line2: rgba(111, 159, 216, 0.32);
  --gold: #6f9fd8;
  --gold-soft: #9dbbe0;
  --ink: #e8edf5;
  --mut: #9dabc0;
  --dim: #77839a;
  --ivory: #edf2f9;
  --ok: #7fc296;
  --bad: #d67979;
  --label: 'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
  --text: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg); color: var(--ink);
  font-family: var(--text); font-size: 16.5px; line-height: 1.7;
  min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--gold-soft); text-decoration: none; }
a:hover { color: var(--ink); }
h1, h2, h3, h4 { font-family: var(--label); font-weight: 600; line-height: 1.25; }
img, svg { max-width: 100%; }

/* ---------- Kopfleiste ---------- */
.top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 15, 22, 0.86); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top-in {
  max-width: 1120px; margin: 0 auto; padding: 0.65rem 1.2rem;
  display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap;
}
.brand { font-family: var(--label); font-weight: 700; font-size: 1.12rem; color: var(--ink); }
.brand b { color: var(--gold); font-weight: 700; }
.brand span { color: var(--dim); font-weight: 500; margin-left: 0.55rem; font-size: 0.9rem; }
.top-nav { margin-left: auto; display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.top-nav a, .top-nav button {
  font-family: var(--label); font-size: 0.86rem; color: var(--mut);
  background: none; border: 0; cursor: pointer; padding: 0.2rem 0;
}
.top-nav a:hover, .top-nav button:hover { color: var(--ink); }
.top-nav .aktiv { color: var(--gold-soft); }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 2.2rem 1.2rem 4rem; flex: 1; }
.lesewrap { max-width: 780px; }
.schmal { max-width: 460px; margin-top: 8vh; }
footer.fuss {
  border-top: 1px solid var(--line); padding: 1.1rem 1.2rem 1.4rem;
  display: flex; gap: 1.2rem; flex-wrap: wrap; justify-content: center;
  font-size: 0.8rem; color: var(--dim);
}
footer.fuss a { color: var(--dim); }
footer.fuss a:hover { color: var(--mut); }

/* ---------- Bausteine ---------- */
.karte {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; padding: 1.4rem 1.5rem;
}
.karte + .karte { margin-top: 1rem; }
.karte h2, .karte h3 { margin-bottom: 0.5rem; }
.hinweis {
  background: var(--panel2); border: 1px solid var(--line2);
  border-radius: 10px; padding: 0.7rem 1rem; margin-bottom: 1rem;
  font-size: 0.92rem; color: var(--gold-soft);
}
.chip {
  display: inline-block; font-family: var(--label); font-size: 0.72rem;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--gold-soft);
  border: 1px solid var(--line2); border-radius: 99px; padding: 0.14rem 0.6rem;
}
.chip-ok { color: var(--ok); border-color: rgba(127, 194, 150, 0.4); }
.chip-bad { color: var(--bad); border-color: rgba(214, 121, 121, 0.4); }

.btn {
  display: inline-block; font-family: var(--label); font-weight: 600;
  font-size: 0.92rem; border-radius: 10px; padding: 0.62rem 1.25rem;
  background: var(--ivory); color: #121826; border: 1px solid var(--ivory);
  cursor: pointer; transition: transform 0.12s ease, opacity 0.12s ease;
}
.btn:hover { transform: translateY(-1px); color: #121826; opacity: 0.92; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line2); }
.btn-ghost:hover { color: var(--ink); border-color: var(--gold); }
.btn[disabled] { opacity: 0.45; cursor: not-allowed; transform: none; }
.btn-mini { padding: 0.3rem 0.7rem; font-size: 0.78rem; border-radius: 8px; }

label.feld { display: block; font-family: var(--label); font-size: 0.84rem; color: var(--mut); margin: 0.9rem 0 0.3rem; }
input[type=text], input[type=email], input[type=password], textarea {
  width: 100%; background: #090d14; color: var(--ink);
  border: 1px solid var(--line2); border-radius: 10px;
  padding: 0.6rem 0.8rem; font: inherit; font-size: 0.95rem;
}
input:focus, textarea:focus { outline: 1px solid var(--gold); border-color: var(--gold); }

/* ---------- Fortschritt ---------- */
.balken { height: 7px; background: var(--panel2); border-radius: 99px; overflow: hidden; border: 1px solid var(--line); }
.balken i { display: block; height: 100%; background: linear-gradient(90deg, #4f79a8, var(--gold-soft)); border-radius: 99px; }

.lektionen { list-style: none; display: grid; gap: 0.7rem; margin-top: 1.1rem; }
.lektion-item {
  display: flex; gap: 1rem; align-items: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 0.85rem 1.1rem; transition: border-color 0.15s ease;
}
.lektion-item:hover { border-color: var(--line2); }
.lektion-item .nr {
  font-family: var(--label); font-size: 0.78rem; color: var(--dim);
  border-right: 2px solid var(--gold); padding-right: 0.9rem; line-height: 1.3;
  min-width: 4.6rem;
}
.lektion-item .t { flex: 1; }
.lektion-item .t strong { display: block; font-family: var(--label); font-weight: 600; }
.lektion-item .t span { font-size: 0.85rem; color: var(--mut); }
.lektion-item .status { font-size: 0.8rem; color: var(--dim); text-align: right; white-space: nowrap; }
.lektion-item .status.done { color: var(--ok); }

.kacheln { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; margin-top: 1.4rem; }

/* ---------- Lektionstext ---------- */
.lese { font-size: 1.04rem; }
.lese .kopf { margin-bottom: 2rem; }
.lese .kopf .zu { font-family: var(--label); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.5rem; }
.lese h1 { font-size: clamp(1.7rem, 4vw, 2.3rem); margin-bottom: 0.5rem; }
.lese .sub { color: var(--mut); font-size: 1.05rem; }
.lese h2 { font-size: 1.42rem; margin: 2.6rem 0 0.9rem; padding-top: 1.6rem; border-top: 1px solid var(--line); }
.lese h3 { font-size: 1.08rem; margin: 1.7rem 0 0.55rem; color: var(--gold-soft); }
.lese p { margin-bottom: 1rem; }
.lese ul, .lese ol { margin: 0 0 1.1rem 1.25rem; }
.lese li { margin-bottom: 0.45rem; }
.lese strong { color: #fff; font-weight: 600; }
.lese table { width: 100%; border-collapse: collapse; margin: 1.1rem 0 1.4rem; font-size: 0.93rem; }
.lese th { font-family: var(--label); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--gold-soft); text-align: left; }
.lese th, .lese td { border-bottom: 1px solid var(--line); padding: 0.55rem 0.7rem 0.55rem 0; vertical-align: top; }

.merk {
  border-left: 2px solid var(--gold); background: var(--panel2);
  border-radius: 0 12px 12px 0; padding: 0.9rem 1.15rem; margin: 1.3rem 0;
}
.merk .mlabel { font-family: var(--label); font-size: 0.72rem; letter-spacing: 0.09em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.25rem; }
.merk p:last-child { margin-bottom: 0; }

.bsp {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; padding: 1rem 1.15rem; margin: 1.3rem 0;
}
.bsp .blabel { font-family: var(--label); font-size: 0.72rem; letter-spacing: 0.09em; text-transform: uppercase; color: var(--dim); margin-bottom: 0.4rem; }
.bsp p:last-child, .bsp pre:last-child { margin-bottom: 0; }
.bsp pre {
  white-space: pre-wrap; font-family: 'Cascadia Mono', Consolas, monospace;
  font-size: 0.86rem; color: var(--gold-soft); background: #090d14;
  border: 1px solid var(--line); border-radius: 8px; padding: 0.75rem 0.9rem;
  margin: 0.5rem 0 0.8rem; line-height: 1.55; overflow-x: auto;
}
.gut { color: var(--ok); font-weight: 600; }
.schlecht { color: var(--bad); font-weight: 600; }

figure.viz {
  background: var(--panel2); border: 1px solid var(--line); border-radius: 14px;
  padding: 1.3rem 1.2rem 0.9rem; margin: 1.6rem 0; text-align: center;
  overflow-x: auto;
}
figure.viz svg { display: block; margin: 0 auto; height: auto; }
figure.viz figcaption { font-size: 0.82rem; color: var(--dim); margin-top: 0.75rem; text-align: center; }

.weiter-nav { display: flex; justify-content: space-between; gap: 1rem; margin-top: 2.6rem; flex-wrap: wrap; }

/* ---------- Quiz und Test ---------- */
.quizblock { margin-top: 3rem; border-top: 1px solid var(--line2); padding-top: 1.6rem; }
.frage { margin-bottom: 1.6rem; }
.frage .ftext { font-weight: 600; margin-bottom: 0.6rem; }
.frage .fnr { color: var(--gold); font-family: var(--label); margin-right: 0.4rem; }
.optionen { display: grid; gap: 0.5rem; }
.optionen label {
  display: flex; gap: 0.65rem; align-items: baseline;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 0.6rem 0.9rem; cursor: pointer; font-size: 0.97rem;
  transition: border-color 0.12s ease;
}
.optionen label:hover { border-color: var(--line2); }
.optionen label:has(input:checked) { border-color: var(--gold); background: var(--panel2); }
.optionen input { accent-color: #6f9fd8; }

.q-res { border-radius: 12px; border: 1px solid var(--line); background: var(--panel); padding: 1rem 1.15rem; margin-bottom: 1rem; }
.q-res.ok { border-left: 3px solid var(--ok); }
.q-res.falsch { border-left: 3px solid var(--bad); }
.q-res .antw { font-size: 0.92rem; margin: 0.35rem 0; }
.q-res .warum { font-size: 0.92rem; color: var(--mut); background: var(--panel2); border-radius: 8px; padding: 0.6rem 0.8rem; margin-top: 0.5rem; }

.countdown {
  position: sticky; top: 3.6rem; z-index: 40; margin-left: auto; width: max-content;
  background: var(--panel2); border: 1px solid var(--line2); border-radius: 99px;
  padding: 0.35rem 0.95rem; font-family: var(--label); font-size: 0.9rem;
  color: var(--gold-soft);
}
.countdown.knapp { color: var(--bad); border-color: rgba(214, 121, 121, 0.5); }

.score-gross { font-family: var(--label); font-size: clamp(2.4rem, 6vw, 3.4rem); font-weight: 700; }
.score-gross small { font-size: 0.45em; color: var(--dim); font-weight: 500; }

/* ---------- Verify ---------- */
.v-karte { border-radius: 14px; padding: 1.5rem 1.6rem; margin-top: 1.2rem; border: 1px solid var(--line2); }
.v-karte.gueltig { border-left: 3px solid var(--gold); background: var(--panel); }
.v-karte.problem { border-left: 3px solid var(--bad); background: var(--panel); }
.v-karte dl { display: grid; grid-template-columns: auto 1fr; gap: 0.3rem 1.2rem; margin-top: 0.8rem; }
.v-karte dt { font-family: var(--label); font-size: 0.8rem; color: var(--dim); text-transform: uppercase; letter-spacing: 0.05em; }
.v-karte dd { font-size: 0.98rem; }

/* ---------- Tabellen (Admin) ---------- */
.tab { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.tab th { font-family: var(--label); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--dim); text-align: left; }
.tab th, .tab td { border-bottom: 1px solid var(--line); padding: 0.5rem 0.6rem 0.5rem 0; vertical-align: top; }
.tab .mono { font-family: Consolas, monospace; font-size: 0.82rem; }
.linkbox { font-family: Consolas, monospace; font-size: 0.78rem; word-break: break-all; background: #090d14; border: 1px solid var(--line); border-radius: 8px; padding: 0.5rem 0.7rem; margin-top: 0.3rem; }

/* ---------- Vorlagen (Druck) ---------- */
.vorlage { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 1.5rem 1.6rem; margin-bottom: 1.4rem; }
.vorlage h2 { border: 0; padding-top: 0; margin-top: 0; }
@media print {
  body { background: #fff; color: #111; font-size: 12pt; }
  .top, footer.fuss, .no-print, .hinweis { display: none !important; }
  .wrap { padding: 0; max-width: none; }
  .vorlage { border: 0; padding: 0; margin: 0 0 2rem; background: #fff; color: #111; page-break-inside: avoid; }
  .vorlage h2, .vorlage h3 { color: #111; }
  .lese th { color: #333; }
  .lese th, .lese td { border-color: #bbb; }
  .merk { background: #eef2f8; border-left-color: #4f79a8; color: #111; }
  .merk .mlabel { color: #436a94; }
  a { color: #111; }
}

@media (max-width: 640px) {
  .wrap { padding: 1.4rem 1rem 3rem; }
  .lektion-item { flex-wrap: wrap; }
  .lektion-item .status { text-align: left; }
  .v-karte dl { grid-template-columns: 1fr; }
}