:root{
  --ink:#1c2b4a; --muted:#66738f; --bg:#f4f6fb; --card:#fff; --line:#dde3ef;
  --brand:#2446a8; --brand-2:#3b63d6; --accent:#ff7a59; --ok:#1f9d63; --ok-bg:#e3f6ec;
  --bad:#d64545; --bad-bg:#fde8e8; --sun:#ffc845; --radius:18px;
  font-family: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color:var(--ink); background:var(--bg);
}
*{box-sizing:border-box}
body{margin:0;line-height:1.45}
a{color:var(--brand-2)}
header.top{background:var(--brand);color:#fff;padding:12px 16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
header.top .logo{color:#fff;font-weight:800;text-decoration:none;font-size:18px;display:flex;align-items:center;gap:8px}
header.top nav{margin-left:auto;display:flex;gap:14px;align-items:center;font-size:14px}
header.top nav a,header.top nav button{color:#fff;opacity:.9;text-decoration:none;background:none;border:0;padding:0;font:inherit;cursor:pointer}
main{max-width:860px;margin:24px auto;padding:0 16px}
h1{font-size:28px;margin:8px 0 4px}
h2{font-size:21px;margin:0 0 12px}
h3{font-size:17px;margin:18px 0 8px}
.card{background:var(--card);border-radius:var(--radius);padding:22px;margin:16px 0;box-shadow:0 4px 20px #1c2b4a0f}
.muted,small{color:var(--muted)}
.notice{padding:13px 15px;background:#e7edff;border-radius:12px;margin:12px 0;word-break:break-word}
form.stack{display:grid;gap:12px}
label{display:grid;gap:6px;font-weight:600;font-size:15px}
input,select,textarea{width:100%;padding:12px 13px;border:1.5px solid var(--line);border-radius:12px;font:inherit;font-size:17px;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:3px solid #3b63d633;border-color:var(--brand-2)}
.btn,button.btn{border:0;background:var(--brand-2);color:#fff;border-radius:12px;padding:12px 18px;font-weight:700;font-size:16px;cursor:pointer;text-decoration:none;display:inline-block;text-align:center}
.btn.big{padding:16px 22px;font-size:19px;width:100%}
.btn.ghost{background:#eef2fb;color:var(--brand)}
.btn.accent{background:var(--accent)}
.btn.ok{background:var(--ok)}
.btn.small{padding:7px 11px;font-size:14px;border-radius:9px}
.btn.danger{background:var(--bad-bg);color:var(--bad)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.metrics div{background:var(--card);padding:14px 10px;border-radius:14px;text-align:center;box-shadow:0 2px 10px #1c2b4a0a}
.metrics strong{display:block;font-size:26px}
.metrics small{display:block;font-size:13px}
.progress{height:10px;background:#e8ecf5;border-radius:99px;overflow:hidden}
.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--ok),#5cc98f)}
.unit{display:grid;gap:10px}
.unit .head{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.tag{display:inline-block;font-size:12px;font-weight:700;padding:3px 8px;border-radius:99px;background:#eef2fb;color:var(--brand)}
.tag.ok{background:var(--ok-bg);color:var(--ok)}
.tag.bad{background:var(--bad-bg);color:var(--bad)}
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{text-align:left;padding:9px 6px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:13px;color:var(--muted);font-weight:700}
.tablewrap{overflow-x:auto}
/* Abfrage */
.quiz{text-align:center}
.quiz .prompt{font-size:34px;font-weight:800;margin:14px 0 6px;word-break:break-word}
.quiz .hint{color:var(--muted);margin-bottom:12px}
.quiz input[name=answer]{font-size:26px;text-align:center;padding:16px;border-width:2px}
.counter{font-size:14px;color:var(--muted);font-weight:700}
.feedback{border-radius:16px;padding:14px 16px;margin:0 0 14px;text-align:left;font-size:17px}
.feedback.ok{background:var(--ok-bg);color:#14643f}
.feedback.bad{background:var(--bad-bg);color:#8f2525}
.feedback b{font-size:20px}
.feedback .typed{text-decoration:line-through;opacity:.8}
.stars{font-size:44px;letter-spacing:6px}
.big-score{font-size:54px;font-weight:800;margin:6px 0}
/* Diagramm */
.bars{display:grid;grid-template-columns:repeat(14,1fr);gap:4px;align-items:end;height:120px;margin-top:8px}
.bars .bar{position:relative;background:#e8ecf5;border-radius:6px 6px 2px 2px;min-height:3px}
.bars .bar span{position:absolute;bottom:0;left:0;right:0;background:var(--ok);border-radius:6px 6px 2px 2px}
.barlabels{display:grid;grid-template-columns:repeat(14,1fr);gap:4px;font-size:10px;color:var(--muted);text-align:center;margin-top:4px}
.legend{display:flex;gap:14px;font-size:13px;color:var(--muted);margin-top:8px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:middle}
/* Laufkarten Handy */
.flash-card{background:#fff;border-radius:24px;padding:40px 16px;text-align:center;box-shadow:0 8px 30px #1c2b4a1a;margin:20px 0}
.flash-card .de{font-size:22px;color:var(--muted)}
.flash-card .en{font-size:44px;font-weight:800;margin-top:10px;word-break:break-word}
.check-row{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.seg{display:inline-flex;border:1.5px solid var(--line);border-radius:12px;overflow:hidden}
.seg input{display:none}
.seg label{padding:9px 14px;font-weight:700;cursor:pointer;display:block}
.seg input:checked+label.ok{background:var(--ok);color:#fff}
.seg input:checked+label.bad{background:var(--bad);color:#fff}
.check-row .typed{grid-column:1/-1;display:none}
.check-row.is-bad .typed{display:block}
.login{max-width:420px;margin:40px auto}
.hero{text-align:center;padding:10px 0 4px}
.hero .emoji{font-size:44px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chips a{padding:7px 12px;border-radius:99px;background:#fff;text-decoration:none;font-weight:700;box-shadow:0 2px 8px #1c2b4a12}
.chips a.on{background:var(--brand);color:#fff}
details summary{cursor:pointer;font-weight:700}
.inline{display:inline}
@media (max-width:640px){
  .metrics{grid-template-columns:repeat(2,1fr)}
  .grid2{grid-template-columns:1fr}
  .quiz .prompt{font-size:28px}
  .card{padding:18px}
  .hide-sm{display:none}
}
@media print{
  header.top,.noprint,.notice{display:none!important}
  body{background:#fff}
  main{max-width:none;margin:0;padding:0}
  .card{box-shadow:none;padding:0;margin:0 0 10px}
}
.credential{background:#fff6d6;border:2px solid var(--sun);border-radius:16px;padding:16px;margin:12px 0;display:grid;gap:8px}
.credential .cred-row{display:grid;grid-template-columns:120px 1fr;gap:8px;align-items:center}
.credential code{font-size:18px;font-weight:700;background:#fff;padding:6px 10px;border-radius:8px;word-break:break-all}
.credential code.pw{font-size:22px;letter-spacing:.5px}