:root {
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface-2: #eef1f7;
  --text: #1b2333;
  --muted: #5d6779;
  --border: #dde2ec;
  --primary: #1f7a5c;
  --primary-ink: #ffffff;
  --primary-soft: #dff2ea;
  --accent: #e8590c;
  --ok: #2b9a66;
  --mid: #d99a00;
  --bad: #d6336c;
  --ok-soft: #e3f6ec;
  --mid-soft: #fdf4dc;
  --bad-soft: #fbe6ee;
  --shadow: 0 1px 2px rgba(20, 30, 50, .06), 0 4px 16px rgba(20, 30, 50, .06);
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #11151c; --surface: #1a2029; --surface-2: #232b37; --text: #e6eaf2; --muted: #9aa4b5;
    --border: #2d3644; --primary: #3cc08f; --primary-ink: #0d1a14; --primary-soft: #1d3a2f;
    --ok-soft: #173327; --mid-soft: #3a3016; --bad-soft: #3b1c27; --shadow: 0 1px 2px rgba(0,0,0,.3);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #11151c; --surface: #1a2029; --surface-2: #232b37; --text: #e6eaf2; --muted: #9aa4b5;
  --border: #2d3644; --primary: #3cc08f; --primary-ink: #0d1a14; --primary-soft: #1d3a2f;
  --ok-soft: #173327; --mid-soft: #3a3016; --bad-soft: #3b1c27; --shadow: 0 1px 2px rgba(0,0,0,.3);
  color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: 1.7rem; }
h2 { font-size: 1.2rem; margin-top: 1.4em; }
h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
ul, ol { margin: .2em 0; padding-left: 1.3em; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.center { text-align: center; margin-top: 1rem; }

/* Topbar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: .6rem 16px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: .6rem; background: none; border: 0; color: inherit; cursor: pointer; text-align: left; padding: 0; font: inherit; }
.brand .logo { font-size: 1.6rem; }
.brand small { display: block; color: var(--muted); font-size: .75rem; }
.topbar-right { display: flex; align-items: center; gap: .5rem; }
.timer { font-variant-numeric: tabular-nums; font-weight: 600; background: var(--surface-2); padding: .25rem .7rem; border-radius: 99px; }
.timer.warn { background: var(--bad-soft); color: var(--bad); }

main { max-width: 1060px; margin: 0 auto; padding: 1.5rem 16px 3rem; }
.foot { text-align: center; color: var(--muted); font-size: .8rem; padding: 1rem 16px 2rem; }

/* Buttons */
.btn {
  font: inherit; font-weight: 600; border-radius: 10px; padding: .6rem 1.1rem; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); transition: .15s;
}
.btn:hover:not(:disabled) { border-color: var(--primary); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }
.btn.primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.sm { padding: .3rem .7rem; font-size: .85rem; }
.btn.big { padding: 1rem 1.4rem; font-size: 1.1rem; flex: 1; }
.btn.danger { color: var(--bad); }
.icon-btn { background: var(--surface-2); border: 1px solid var(--border); color: var(--text); border-radius: 8px; width: 2.1rem; height: 2.1rem; cursor: pointer; font-size: .9rem; }
.icon-btn:disabled { opacity: .3; cursor: default; }
.link { background: none; border: 0; color: var(--primary); cursor: pointer; font: inherit; font-weight: 600; padding: 0; }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.pad { padding: 1.25rem; }
.hero { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.5rem; align-items: center; }
.hero p { color: var(--muted); margin: 0; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: .7rem 1rem; }
.stat b { display: block; font-size: 1.5rem; }
.stat span { color: var(--muted); font-size: .8rem; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: .9rem; }
.test-card {
  display: flex; flex-direction: column; gap: .3rem; text-align: left; padding: 1.1rem; cursor: pointer;
  font: inherit; color: inherit; transition: transform .15s, border-color .15s;
}
.test-card:hover:not(:disabled) { transform: translateY(-2px); border-color: var(--primary); }
.test-card:disabled { opacity: .55; cursor: not-allowed; }
.t-icon { font-size: 1.7rem; }
.t-title { font-weight: 700; font-size: 1.05rem; }
.t-desc { color: var(--muted); font-size: .88rem; flex: 1; }
.t-meta { display: flex; justify-content: space-between; gap: .5rem; font-size: .78rem; color: var(--muted); margin-top: .4rem; }
.mini-bar { height: 5px; border-radius: 9px; background: var(--surface-2); overflow: hidden; }
.mini-bar i { display: block; height: 100%; background: var(--primary); }

.two-col { display: grid; grid-template-columns: 1fr 1.3fr; gap: 1rem; margin-top: 1.5rem; }
.two-col h2 { margin-top: 0; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: .5rem; flex-wrap: wrap; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; }

.topic-row { display: grid; grid-template-columns: minmax(0, 1.4fr) 1fr 3rem; gap: .6rem; align-items: center; font-size: .88rem; margin: .45rem 0; }
.bar { height: 8px; background: var(--surface-2); border-radius: 9px; overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 9px; }
.bar i.ok { background: var(--ok); } .bar i.mid { background: var(--mid); } .bar i.low { background: var(--bad); }
.num { text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .85rem; }
th, td { text-align: left; padding: .45rem .4rem; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; }
.pill { padding: .1rem .5rem; border-radius: 99px; font-weight: 600; font-size: .8rem; }
.g1, .g2 { background: var(--ok-soft); color: var(--ok); }
.g3, .g4 { background: var(--mid-soft); color: var(--mid); }
.g5, .g6 { background: var(--bad-soft); color: var(--bad); }

/* Quiz */
.quiz { max-width: 780px; margin: 0 auto; }
.quiz-head { display: flex; justify-content: space-between; align-items: end; gap: 1rem; }
.quiz-head h2 { margin: 0; }
.progress { height: 6px; background: var(--surface-2); border-radius: 9px; overflow: hidden; margin: .7rem 0 1rem; }
.progress i { display: block; height: 100%; background: var(--primary); transition: width .25s; }
.q-tags { display: flex; gap: .4rem; flex-wrap: wrap; margin-bottom: .8rem; }
.tag { background: var(--primary-soft); color: var(--primary); font-size: .75rem; font-weight: 700; padding: .15rem .6rem; border-radius: 99px; }
.tag.soft { background: var(--surface-2); color: var(--muted); }
.q-text { font-size: 1.15rem; margin-bottom: 1rem; }

.options { display: grid; gap: .55rem; }
.opt { display: flex; gap: .7rem; align-items: flex-start; padding: .75rem .9rem; border: 1.5px solid var(--border); border-radius: 10px; cursor: pointer; transition: .12s; }
.opt:hover { border-color: var(--primary); }
.opt.sel { border-color: var(--primary); background: var(--primary-soft); }
.opt input { margin-top: .3rem; accent-color: var(--primary); }
.tf { display: flex; gap: .8rem; flex-wrap: wrap; }

textarea, select, input.blank {
  font: inherit; color: var(--text); background: var(--surface-2);
  border: 1.5px solid var(--border); border-radius: 10px;
}
textarea { width: 100%; padding: .8rem; resize: vertical; }
textarea:focus, select:focus, input.blank:focus { outline: none; border-color: var(--primary); }

.match { display: grid; gap: .6rem; }
.match-row { display: grid; grid-template-columns: 1fr 1.3fr; gap: .7rem; align-items: center; padding: .5rem 0; border-bottom: 1px dashed var(--border); }
.m-left { font-weight: 600; }
.match select { width: 100%; padding: .5rem; min-width: 0; }

.order { list-style: none; padding: 0; display: grid; gap: .5rem; }
.order li { display: flex; align-items: center; gap: .7rem; padding: .6rem .7rem; border: 1.5px solid var(--border); border-radius: 10px; background: var(--surface); }
.o-num { background: var(--primary-soft); color: var(--primary); font-weight: 700; border-radius: 50%; width: 1.8rem; height: 1.8rem; display: grid; place-items: center; flex-shrink: 0; font-size: .85rem; }
.o-txt { flex: 1; }
.o-btns { display: flex; gap: .3rem; }

.cloze { line-height: 2.4; }
input.blank { padding: .2rem .5rem; width: 9.5rem; max-width: 100%; }

.nav { display: flex; justify-content: space-between; margin-top: 1rem; }
.dots { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: 1.2rem; justify-content: center; }
.dot { width: 2.1rem; height: 2.1rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--muted); cursor: pointer; font: inherit; font-size: .8rem; }
.dot.done { background: var(--primary-soft); color: var(--primary); border-color: transparent; font-weight: 700; }
.dot.cur { outline: 2px solid var(--primary); outline-offset: 1px; }

/* Ergebnis */
.result-head { display: flex; gap: 2rem; align-items: center; }
.ring {
  --deg: 0deg; flex-shrink: 0; width: 160px; height: 160px; border-radius: 50%;
  background: conic-gradient(var(--primary) var(--deg), var(--surface-2) 0);
  display: grid; place-items: center;
}
.ring > div { width: 126px; height: 126px; border-radius: 50%; background: var(--surface); display: grid; place-content: center; text-align: center; }
.ring b { font-size: 2rem; }
.ring span { font-size: .8rem; color: var(--muted); }
.result-info { flex: 1; min-width: 0; }
.result-info p { margin: 0 0 .8rem; }
.topic-mini { margin-bottom: 1rem; }

.legend { display: flex; gap: 1rem; margin-top: 1.2rem; }
.lg::before { content: ""; display: inline-block; width: .7rem; height: .7rem; border-radius: 3px; margin-right: .35rem; vertical-align: -1px; }
.lg.full::before { background: var(--ok); } .lg.part::before { background: var(--mid); } .lg.none::before { background: var(--bad); }

.review { margin-bottom: .7rem; border-left: 5px solid var(--border); overflow: hidden; }
.review.full { border-left-color: var(--ok); }
.review.part { border-left-color: var(--mid); }
.review.none { border-left-color: var(--bad); }
.review summary { display: flex; gap: .8rem; align-items: center; padding: .85rem 1rem; cursor: pointer; list-style: none; }
.review summary::-webkit-details-marker { display: none; }
.r-num { font-weight: 700; color: var(--muted); width: 1.6rem; flex-shrink: 0; }
.r-q { flex: 1; font-weight: 600; min-width: 0; }
.r-pts { font-variant-numeric: tabular-nums; font-weight: 700; white-space: nowrap; }
.review.full .r-pts { color: var(--ok); } .review.part .r-pts { color: var(--mid); } .review.none .r-pts { color: var(--bad); }
.r-body { padding: 0 1rem 1rem 3.4rem; }
.r-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.r-grid > div { background: var(--surface-2); padding: .8rem; border-radius: 10px; font-size: .92rem; min-width: 0; overflow-wrap: anywhere; }
.ok-t { color: var(--ok); } .bad-t { color: var(--bad); }
.explain { background: var(--primary-soft); padding: .6rem .8rem; border-radius: 10px; margin: .8rem 0 0; font-size: .9rem; }
.kw { margin-top: .8rem; display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; }
.chip { font-size: .75rem; padding: .1rem .55rem; border-radius: 99px; background: var(--bad-soft); color: var(--bad); }
.chip.on { background: var(--ok-soft); color: var(--ok); }
.self { margin-top: .7rem; display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }

/* Mobil */
@media (max-width: 760px) {
  .hero, .two-col, .r-grid { grid-template-columns: 1fr; }
  .result-head { flex-direction: column; text-align: center; }
  .result-info .actions { justify-content: center; }
  .match-row { grid-template-columns: 1fr; gap: .3rem; }
  .r-body { padding-left: 1rem; }
  h1 { font-size: 1.4rem; }
  .brand small { display: none; }
}