:root{--bg: #f4f6fb;--card: #ffffff;--ink: #1e2430;--muted: #6b7480;--accent: #2f6df6;--accent-ink: #ffffff;--ok: #1a8f4c;--err: #c62828;--right: #e3f5e8;--wrong: #fde8e8;--line: #e2e6ee}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5}.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:var(--card);border-bottom:1px solid var(--line)}.brand{font-weight:700;text-decoration:none;color:var(--ink)}.nav{display:flex;gap:16px;align-items:center}.nav a{text-decoration:none;color:var(--accent)}.linklike{border:none;background:none;color:var(--muted);cursor:pointer;font:inherit}.content{max-width:860px;margin:24px auto;padding:0 16px}.stack{display:flex;flex-direction:column;gap:16px}.centerbox{min-height:90vh;display:grid;place-items:center;padding:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}.card h1,.card h2{margin-top:0}label{display:flex;flex-direction:column;gap:4px;font-size:.9rem;color:var(--muted)}input,select{padding:9px 10px;border:1px solid var(--line);border-radius:8px;font:inherit;color:var(--ink)}input.dup{border-color:var(--err);background:#fdf2f2}.row{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}.grow{flex:1}button{padding:9px 16px;border-radius:8px;border:1px solid var(--line);background:#fff;cursor:pointer;font:inherit}button:disabled{opacity:.5;cursor:not-allowed}.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);text-decoration:none;display:inline-block}a.primary{padding:9px 16px;border-radius:8px;border:1px solid var(--accent)}.error{color:var(--err)}.ok{color:var(--ok)}.muted{color:var(--muted)}.login{width:min(400px,92vw);display:flex;flex-direction:column;gap:14px}.tabs,.beamer-tabs{display:flex;gap:8px;flex-wrap:wrap}.tabs button.active,.beamer-tabs button.active{background:var(--accent);color:#fff;border-color:var(--accent)}.score{margin-bottom:0}.sections{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.sections li{display:flex;justify-content:space-between;align-items:center;padding:12px;border:1px solid var(--line);border-radius:10px}.badge{background:var(--accent);color:#fff;border-radius:6px;padding:2px 8px;margin-right:8px;font-size:.85rem}.stepper{display:flex;align-items:center;gap:8px}.stepper h2{margin:0 0 0 8px;font-size:1.1rem}.stepdot{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:#e7ebf3;color:var(--muted);font-size:.85rem}.stepdot.active{background:var(--accent);color:#fff}.slide .slidetext{font-size:1.3rem;min-height:96px}.prompt{font-weight:600}.sortlist{list-style:none;padding:0;margin:0 0 16px;display:flex;flex-direction:column;gap:8px}.sortlist li{display:flex;align-items:center;gap:12px;padding:10px;border:1px solid var(--line);border-radius:8px;flex-wrap:wrap}.itemlabel{flex:1;min-width:140px}.sortlist li.right{background:var(--right)}.sortlist li.wrong{background:var(--wrong)}.feedback{flex-basis:100%;font-size:.9rem;color:var(--muted)}.question{padding:12px 0;border-bottom:1px solid var(--line)}.qtext{font-weight:600}.option{display:flex;flex-direction:row;align-items:center;gap:8px;color:var(--ink)}.option.markcorrect{font-weight:600;color:var(--ok)}.explain{font-size:.9rem;color:var(--muted)}.question.right .qtext{color:var(--ok)}.question.wrong .qtext{color:var(--err)}.resultbox{margin-top:12px;padding:12px;background:#f0f4ff;border-radius:8px}.leaderboard{list-style:none;padding:0;margin:0}.leaderboard li{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--line)}.leaderboard .rank{font-weight:700;width:24px}.leaderboard .pts{margin-left:auto;font-weight:700}.myrank{margin-top:10px}.beamer{min-height:100vh;padding:24px;background:#0f1729;color:#fff}.beamer h1{font-size:2.2rem}.beamer-tabs button{background:#1c2740;color:#fff;border-color:#2a3654}.beamer-exit{margin-left:auto;color:#9fb2d8;text-decoration:none}.beamer-board{list-style:none;padding:0;margin:0;font-size:1.8rem}.beamer-board li{display:flex;align-items:center;gap:20px;padding:14px 8px;border-bottom:1px solid #22304d}.beamer-board .rank{color:#ffd166;font-weight:700;width:48px}.beamer-board .name{flex:1}.beamer-board .pts{font-weight:700}.beamer-board .empty{color:#9fb2d8}.wolke{max-width:1200px;margin:0 auto}.wolke .empty{color:#9fb2d8}.wolke-svg{display:block;width:100%;max-height:62vh;margin:0 auto}.wolke-zuordnung{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;padding:10px;border-radius:10px;background:#7f92bb1f}.wolke-zuordnung button{border:2px solid;border-radius:8px;padding:4px 10px;cursor:pointer}.wolke-legende{text-align:center;font-size:.9rem}.demo3d{max-width:1100px;margin:0 auto}.demo3d-plot{width:100%;height:65vh;background:#fff;border-radius:12px}.demo3d .row{align-items:center;margin-top:10px}.viz{display:block;margin:8px 0 4px;max-width:100%}.sliders{display:flex;flex-direction:column;gap:10px;margin:8px 0}.sliders input[type=range],label input[type=range]{width:100%}.legend{font-size:.85rem}.dot{display:inline-block;width:11px;height:11px;border-radius:50%;vertical-align:middle}.dot.below{background:#e08a1e}.dot.above{background:#1a8f4c}.dataset{background:#f0f4ff;border-radius:8px;padding:8px 12px;margin-bottom:12px}.dataset ul{margin:6px 0 0;padding-left:18px}.sentence-build{font-size:1.25rem;background:#f0f4ff;border-radius:8px;padding:12px}.wordoptions{display:flex;flex-direction:column;gap:8px}.wordbtn{display:flex;align-items:center;gap:10px;text-align:left;padding:8px 12px}.wordbtn .word{flex:0 0 90px;font-weight:600}.wordbtn .probbar{flex:1;height:10px;background:#e7ebf3;border-radius:5px;overflow:hidden}.wordbtn .probfill{display:block;height:100%;background:var(--accent)}.wordbtn .prob{flex:0 0 44px;text-align:right;color:var(--muted);font-size:.9rem}.usertable{width:100%;border-collapse:collapse}.usertable th,.usertable td{text-align:left;padding:6px 10px;border-bottom:1px solid var(--line)}.pin{font-family:ui-monospace,monospace;letter-spacing:1px}.countdown{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}.countdown.knapp{color:var(--err);font-weight:600}.countdown.vorbei{color:var(--ink);font-weight:600}.beamer-countdown{display:flex;align-items:baseline;gap:20px;margin:8px 0 4px}.beamer-countdown .zeit{font-size:5rem;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;color:#ffd166}.beamer-countdown .label{font-size:1.4rem;color:#9fb2d8}.beamer-countdown.knapp .zeit{color:#ff8a5c}.beamer-countdown.vorbei .zeit,.beamer-countdown.vorbei .label{color:#9fb2d8}button,a.primary,input,select{min-height:44px}input,select,textarea{font-size:16px}input[type=range]{min-height:44px;accent-color:var(--accent)}@media (max-width: 720px){.content{margin:12px auto}.card{padding:14px}.row{flex-direction:column;align-items:stretch}.sections li{flex-direction:column;align-items:flex-start;gap:8px}.usertable{display:block;overflow-x:auto}}.card.aktuell{border-color:var(--accent);border-width:2px}.modulkacheln{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.modulkacheln li{display:flex;gap:10px;align-items:baseline;flex-wrap:wrap;padding:10px 12px;border:1px solid var(--line);border-radius:10px}.modulkacheln li.gesperrt{opacity:.55}.modulkacheln li.offen{border-color:var(--accent)}details.card>summary{cursor:pointer;font-weight:600}details.card>.stack{margin-top:14px}