/* Lernpfad Informatik 7 – PC-first (school computer room), large type, high contrast, no web fonts. */
:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --ink: #17202c;
  --muted: #55606e;
  --line: #d5dbe3;
  --accent: #1f5fbf;
  --accent-soft: #e6eefb;
  --ok: #1d7a46;
  --ok-soft: #e3f4ea;
  --hint: #9a5b00;
  --hint-soft: #fff1d6;
  --sel: #6b3fb3;
  --radius: 12px;
  font-size: 18px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", -apple-system, "Noto Sans", "DejaVu Sans", "Liberation Sans", Arial, sans-serif;
  line-height: 1.5;
}
#app { max-width: 1120px; margin: 0 auto; padding: 16px 20px 48px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .4em; }
h1 { font-size: 1.7rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.05rem; }
p { margin: .3em 0 .7em; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.icon { display: inline-flex; width: 1.3em; height: 1.3em; flex: none; }
.icon svg { width: 100%; height: 100%; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin: 12px 0; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
  border-radius: 10px; padding: 10px 18px; border: 2px solid transparent;
}
.btn-main { background: var(--accent); color: #fff; }
.btn-main:hover { filter: brightness(1.1); }
.btn-ghost { background: transparent; color: var(--accent); border-color: var(--line); }
.btn-ghost:hover { background: var(--accent-soft); }
.btn-sm { padding: 4px 10px; font-size: .9rem; }
.btn:focus-visible, .opt:focus-visible, .card:focus-visible, .tile:focus-visible { outline: 3px solid var(--sel); outline-offset: 2px; }
.speak { margin-top: 6px; }

/* header + map */
.top { margin-bottom: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 1.6rem; font-weight: 700; color: var(--accent); }
.brand .icon { width: 1.6em; height: 1.6em; }
.lead { font-size: 1.1rem; }
.block { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin: 18px 0; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 14px; }
.tile {
  position: relative; display: flex; gap: 14px; align-items: flex-start;
  background: var(--bg); border: 2px solid var(--line); border-radius: var(--radius);
  padding: 14px; color: inherit; text-decoration: none;
}
.tile:hover { border-color: var(--accent); background: var(--accent-soft); }
.tile.done { border-color: var(--ok); background: var(--ok-soft); }
.tile-icon {
  width: 56px; height: 56px; flex: none; border-radius: 12px; background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.tile-icon .icon { width: 34px; height: 34px; }
.tile-nr { font-size: .8rem; font-weight: 700; color: var(--accent); letter-spacing: .04em; }
.tile-title { font-weight: 700; font-size: 1.1rem; }
.tile-q { color: var(--muted); }
.tile-meta { font-size: .85rem; color: var(--muted); margin-top: 4px; }
.tile-check { position: absolute; top: 10px; right: 10px; color: var(--ok); }
.tile-check .icon { width: 28px; height: 28px; }
.foot { margin-top: 24px; color: var(--muted); text-align: center; }

/* station */
.station-top { display: flex; flex-direction: column; gap: 12px; }
.station-top > .btn { align-self: flex-start; }
.station-head { display: flex; gap: 14px; align-items: center; }
.station-head h1 { margin: 0; }
.frage { font-size: 1.15rem; margin: 2px 0 0; color: var(--muted); }
.steps { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 999px;
  border: 2px solid var(--line); background: var(--card); color: var(--muted); text-decoration: none; font-weight: 600;
}
.pill.on { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.pill.past { color: var(--ok); border-color: var(--ok); }
.pill-n { display: inline-flex; width: 1.6em; height: 1.6em; border-radius: 50%; align-items: center; justify-content: center; border: 2px solid currentColor; font-size: .8rem; }
.wozu { background: #eef6ff; border-left: 6px solid var(--accent); border-radius: 8px; padding: 10px 14px; margin: 0 0 14px; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.step-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; gap: 12px; }
.auftrag { font-weight: 600; font-size: 1.08rem; }

/* erklaer */
.erklaer { display: grid; grid-template-columns: minmax(0, 360px) 1fr; gap: 24px; align-items: start; }
.erklaer > .erklaer-text:only-child { grid-column: 1 / -1; }
@media (max-width: 760px) { .erklaer { grid-template-columns: 1fr; } }
.pic svg, .pic img { max-width: 100%; height: auto; display: block; }
.pic-big { background: var(--bg); border-radius: var(--radius); padding: 12px; }
.merke { background: var(--ok-soft); border-left: 6px solid var(--ok); padding: 10px 14px; border-radius: 8px; margin: 10px 0; }
.woerter { margin-top: 18px; }
.wort-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; }
.wort { border: 1px solid var(--line); border-radius: 10px; padding: 10px; background: var(--bg); }
.wort-pic svg { width: 64px; height: 64px; display: block; margin-bottom: 4px; }
.wort-w { font-weight: 700; }
.wort-t { font-size: .92rem; color: var(--muted); }

/* quiz */
.quiz-status { font-size: .9rem; color: var(--muted); font-weight: 600; }
.frage-text { font-size: 1.2rem; font-weight: 600; }
.opts { display: grid; gap: 10px; margin: 12px 0; }
.opts-pics { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.opt {
  font: inherit; text-align: left; cursor: pointer; background: var(--card); color: var(--ink);
  border: 2px solid var(--line); border-radius: 10px; padding: 12px 16px; display: flex; flex-direction: column; gap: 6px;
}
.opt:hover:not(:disabled) { border-color: var(--accent); background: var(--accent-soft); }
.opt:disabled { cursor: default; }
.opt.right { border-color: var(--ok); background: var(--ok-soft); }
.opt.wrong { border-color: var(--hint); background: var(--hint-soft); }
.opt-pic svg { max-width: 100%; height: auto; display: block; }
.fb { display: flex; gap: 10px; align-items: flex-start; border-radius: 10px; padding: 10px 14px; margin: 10px 0; font-weight: 600; }
.fb .icon { margin-top: 2px; }
.fb.ok { background: var(--ok-soft); color: var(--ok); }
.fb.hint, .fb.bad { background: var(--hint-soft); color: var(--hint); }
.hints { margin: 0 0 8px; color: var(--hint); }
.quiz-done { margin-top: 10px; }

/* sortieren */
.pool { min-height: 70px; display: flex; flex-wrap: wrap; gap: 10px; padding: 12px; border: 2px dashed var(--line); border-radius: var(--radius); background: var(--bg); }
.koerbe { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; margin-top: 14px; }
.korb { border: 2px solid var(--line); border-radius: var(--radius); background: var(--card); display: flex; flex-direction: column; }
.korb-head { display: flex; align-items: center; gap: 8px; padding: 8px 12px; font-weight: 700; border-bottom: 1px solid var(--line); background: var(--accent-soft); border-radius: var(--radius) var(--radius) 0 0; }
.korb-pic svg { width: 32px; height: 32px; display: block; }
.korb-drop { min-height: 110px; padding: 10px; display: flex; flex-wrap: wrap; gap: 8px; align-content: flex-start; }
.over { outline: 3px dashed var(--accent); outline-offset: -4px; }
.card {
  display: inline-flex; align-items: center; gap: 8px; cursor: grab; user-select: none;
  background: var(--card); border: 2px solid var(--line); border-radius: 10px; padding: 8px 12px; font-weight: 600;
}
.card-pic svg { width: 36px; height: 36px; display: block; }
.card.sel { border-color: var(--sel); box-shadow: 0 0 0 3px #e9defa; }
.card.locked { border-color: var(--ok); background: var(--ok-soft); cursor: default; }
.card.bad { border-color: var(--hint); }

/* reihenfolge */
.order { padding-left: 1.6em; }
.order-item { display: flex; justify-content: space-between; align-items: center; gap: 12px; background: var(--bg); border: 2px solid var(--line); border-radius: 10px; padding: 8px 12px; margin: 8px 0; }
.order-item.right { border-color: var(--ok); background: var(--ok-soft); }
.order-item.wrong { border-color: var(--hint); background: var(--hint-soft); }
.order-btns { display: flex; gap: 6px; }

/* luecke */
.luecke { font-size: 1.15rem; line-height: 2.4; }
.gap { font: inherit; padding: 4px 8px; border-radius: 8px; border: 2px solid var(--line); margin: 0 4px; background: #fff; }
.gap.right { border-color: var(--ok); background: var(--ok-soft); }
.gap.wrong { border-color: var(--hint); background: var(--hint-soft); }

/* stamp */
.stamp { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; text-align: center; }
.stamp-icon { color: var(--ok); }
.stamp-icon .icon { width: 72px; height: 72px; }
.stamp-label { margin-top: 18px; font-weight: 600; }
.stamp-word {
  display: inline-block; font-size: 2.6rem; font-weight: 800; letter-spacing: .12em; color: var(--ok);
  border: 4px solid var(--ok); border-radius: 14px; padding: 8px 28px; margin: 6px 0 18px; transform: rotate(-2deg);
}
.ichkann { text-align: left; max-width: 640px; margin: 0 auto 20px; }
.ichkann li { margin: 6px 0; }

/* who are you, result QR */
.hallo { font-size: 1.15rem; font-weight: 600; margin: 4px 0; }
.linkish { font: inherit; font-weight: 400; font-size: .9rem; background: none; border: 0; color: var(--accent); text-decoration: underline; cursor: pointer; padding: 0; }
.wer { max-width: 560px; }
.lbl { display: block; font-weight: 700; margin: 14px 0 4px; }
.field { font: inherit; font-size: 1.4rem; padding: 10px 14px; border: 2px solid var(--line); border-radius: 10px; width: 100%; }
.field:focus { outline: 3px solid var(--sel); outline-offset: 1px; }
.field-short { max-width: 10ch; }
.stamp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; align-items: center; margin: 12px 0; }
.qrbox { display: flex; flex-direction: column; align-items: center; }
.qr-wrap svg.qr { width: 260px; height: 260px; display: block; border: 1px solid var(--line); border-radius: 8px; }
.code { font-family: Consolas, "DejaVu Sans Mono", monospace; font-size: .8rem; color: var(--muted); word-break: break-all; max-width: 340px; text-align: center; }
.stand { margin-top: 14px; }