/* ---------- Farben & Grundwerte ---------- */
:root {
  --bg: #f4f5fa;
  --bg-accent: radial-gradient(1200px 600px at 10% -10%, #e4e6ff 0%, transparent 60%),
               radial-gradient(900px 500px at 110% 10%, #ffe6e1 0%, transparent 55%);
  --surface: #ffffff;
  --surface-2: #f0f1f7;
  --border: #e2e4ee;
  --text: #1a1c2b;
  --muted: #6a6f86;
  --p1: #5b5bd6;
  --p1-soft: #e8e8fb;
  --p2: #ef5d48;
  --p2-soft: #fde7e3;
  --ok: #1f9d63;
  --ok-soft: #dcf5e8;
  --bad: #d93a4a;
  --bad-soft: #fbe2e5;
  --ki: #8b5cf6;
  --ki-soft: #efe8fe;
  --shadow: 0 1px 2px rgb(20 22 40 / .05), 0 8px 24px rgb(20 22 40 / .07);
  --radius: 18px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1016;
    --bg-accent: radial-gradient(1200px 600px at 10% -10%, #1d1f45 0%, transparent 60%),
                 radial-gradient(900px 500px at 110% 10%, #3a1a17 0%, transparent 55%);
    --surface: #171a23;
    --surface-2: #20242f;
    --border: #2a2f3c;
    --text: #eceef6;
    --muted: #9aa0b6;
    --p1: #8183f4;
    --p1-soft: #24264d;
    --p2: #ff7a66;
    --p2-soft: #46221d;
    --ok: #3ccf8e;
    --ok-soft: #133526;
    --bad: #ff6b78;
    --bad-soft: #401b21;
    --ki: #a78bfa;
    --ki-soft: #2c2347;
    --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 8px 24px rgb(0 0 0 / .35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e1016;
  --bg-accent: radial-gradient(1200px 600px at 10% -10%, #1d1f45 0%, transparent 60%),
               radial-gradient(900px 500px at 110% 10%, #3a1a17 0%, transparent 55%);
  --surface: #171a23;
  --surface-2: #20242f;
  --border: #2a2f3c;
  --text: #eceef6;
  --muted: #9aa0b6;
  --p1: #8183f4;
  --p1-soft: #24264d;
  --p2: #ff7a66;
  --p2-soft: #46221d;
  --ok: #3ccf8e;
  --ok-soft: #133526;
  --bad: #ff6b78;
  --bad-soft: #401b21;
  --ki: #a78bfa;
  --ki-soft: #2c2347;
  --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 8px 24px rgb(0 0 0 / .35);
  color-scheme: dark;
}

/* ---------- Basis ---------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-accent), var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

.app {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 16px 48px;
}

.screen { animation: fade-in .35s ease both; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

h1, h2 { line-height: 1.2; margin: 0; letter-spacing: -0.02em; }
.lead { color: var(--muted); margin: 0; }

kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0 .4em;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--surface-2);
  font: 600 .8em/1.6 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-align: center;
}

/* ---------- Buttons ---------- */
.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 18px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform .12s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn:focus-visible, .answer:focus-visible, input:focus-visible, .segmented input:focus-visible + span {
  outline: 3px solid color-mix(in srgb, var(--p1) 55%, transparent);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--text);
  color: var(--surface);
}
.btn-primary:hover { box-shadow: 0 6px 18px rgb(20 22 40 / .18); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--surface-2); }
.btn-lg { padding: 14px 24px; font-size: 1.05rem; border-radius: 14px; }
.btn-sm { padding: 6px 12px; font-size: .875rem; border-radius: 10px; }

/* ---------- Startbildschirm ---------- */
.hero { text-align: center; margin: 8px 0 28px; }
.logo {
  width: 80px; height: 80px;
  display: grid; place-items: center;
  margin: 0 auto 16px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.hero h1 { font-size: clamp(2rem, 6vw, 3rem); font-weight: 800; margin-bottom: 10px; }
.hero .lead { max-width: 30rem; margin: 0 auto; font-size: 1.05rem; }

.setup {
  max-width: 560px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  gap: 22px;
}
.names { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: grid; gap: 6px; }
.field-label { font-size: .875rem; font-weight: 600; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--c); flex: none; }
.p1 { --c: var(--p1); --c-soft: var(--p1-soft); }
.p2 { --c: var(--p2); --c-soft: var(--p2-soft); }
.field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  transition: border-color .2s ease, background-color .2s ease;
}
.field input:focus { border-color: var(--c); background: var(--surface); }

.length { border: 0; margin: 0; padding: 0; }
.length legend { font-size: .875rem; font-weight: 600; color: var(--muted); margin-bottom: 8px; padding: 0; }
.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding: 5px;
  border-radius: 14px;
  background: var(--surface-2);
}
.segmented label { position: relative; }
.segmented input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.segmented span {
  display: grid;
  text-align: center;
  padding: 8px 6px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color .2s ease, box-shadow .2s ease;
}
.segmented small { font-weight: 500; color: var(--muted); font-size: .78rem; }
.segmented input:checked + span { background: var(--surface); box-shadow: 0 1px 3px rgb(0 0 0 / .1); }

.rules {
  margin: 0;
  padding: 14px 16px 14px 34px;
  border-radius: 12px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: .93rem;
  display: grid;
  gap: 4px;
}
.rules strong { color: var(--text); }

/* ---------- Spielbildschirm ---------- */
.screen-game { display: grid; gap: 16px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand { font-weight: 800; letter-spacing: -0.01em; white-space: nowrap; }
.turn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 8px;
  border-radius: 999px;
  background: var(--c-soft);
  color: var(--text);
  font-weight: 600;
  font-size: .95rem;
  transition: background-color .3s ease;
  min-width: 0;
}
.turn .avatar { width: 26px; height: 26px; font-size: .8rem; }
.turn .turn-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.turn.pop { animation: pop .4s ease; }

/* Rennstrecke */
.track { padding: 18px; display: grid; gap: 16px; }
.lane {
  --cols: 13;
  padding: 10px 12px 12px;
  border-radius: 14px;
  border: 2px solid transparent;
  transition: border-color .3s ease, background-color .3s ease, opacity .3s ease;
  opacity: .72;
}
.lane.active { border-color: var(--c); background: color-mix(in srgb, var(--c-soft) 55%, transparent); opacity: 1; }
.lane-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-weight: 600; }
.lane-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lane-pos { margin-left: auto; color: var(--muted); font-size: .875rem; font-variant-numeric: tabular-nums; white-space: nowrap; }

.lane-track { position: relative; }
.cells {
  display: grid;
  grid-template-columns: repeat(var(--cols), 1fr);
  gap: 3px;
}
.cell {
  height: clamp(26px, 6vw, 42px);
  border-radius: 8px;
  background: var(--surface-2);
  display: grid;
  place-items: center;
  font-size: .72rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  transition: background-color .35s ease, color .35s ease;
  min-width: 0;
}
.cell.done { background: color-mix(in srgb, var(--c) 28%, var(--surface-2)); color: var(--text); }
.cell.start { background: repeating-linear-gradient(135deg, var(--surface-2) 0 5px, var(--border) 5px 10px); }
.cell.finish { overflow: visible; }
.cell.finish .flag { --w: clamp(13px, 2.6vw, 20px); }

/* ---------- Wehende Zielflagge ----------
   Das Tuch besteht aus 8 senkrechten Streifen mit durchgehendem Schachbrettmuster.
   Jeder Streifen schwingt etwas zeitversetzt und weiter vom Mast entfernt stärker. */
.flag {
  --w: 44px;
  --h: calc(var(--w) * .75);
  --sq: calc(var(--w) / 4);
  --flag-dark: #1a1c2b;
  --flag-light: #ffffff;
  position: relative;
  display: inline-block;
  width: calc(var(--w) + var(--w) / 10);
  height: calc(var(--h) * 1.75);
  flex: none;
}
.flag-pole {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: max(2px, calc(var(--w) / 14));
  border-radius: 99px;
  background: var(--muted);
}
.flag-cloth {
  position: absolute;
  left: max(2px, calc(var(--w) / 14));
  top: calc(var(--h) / 12);
  display: flex;
  width: var(--w);
  height: var(--h);
}
.flag-cloth i {
  flex: 0 0 calc(var(--w) / 8 + .5px);
  height: 100%;
  background:
    conic-gradient(var(--flag-dark) 25%, var(--flag-light) 0 50%, var(--flag-dark) 0 75%, var(--flag-light) 0)
    calc(var(--w) / -8 * var(--i)) 0 / var(--sq) var(--sq);
  box-shadow: 0 .5px 0 rgb(0 0 0 / .08);
  animation: flag-wave 1.4s ease-in-out infinite;
  animation-delay: calc(var(--i) * -.12s);
}
.flag-cloth i:last-child { border-radius: 0 2px 2px 0; }
@keyframes flag-wave {
  0%, 100% { transform: translateY(calc(var(--i) * var(--h) * -.025)); filter: brightness(1); }
  50%      { transform: translateY(calc(var(--i) * var(--h) * .025)); filter: brightness(.8); }
}

.avatar {
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--c);
  color: #fff;
  font-weight: 800;
  flex: none;
}
.token {
  position: absolute;
  top: 50%;
  left: calc((var(--pos) + .5) * 100% / var(--cols));
  width: min(36px, calc(100% / var(--cols) + 4px));
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  font-size: .85rem;
  box-shadow: 0 0 0 3px var(--surface), 0 4px 12px rgb(0 0 0 / .25);
  transition: left .55s cubic-bezier(.34, 1.4, .64, 1);
  z-index: 1;
}
.token.hop { animation: hop .55s ease; }

/* Fragekarte */
.question { padding: 22px; display: grid; gap: 16px; }
.question-meta { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.badge {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .02em;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
}
.badge.ki { background: var(--ki-soft); color: var(--ki); }
.counter { color: var(--muted); font-size: .875rem; font-variant-numeric: tabular-nums; }
.question-text { font-size: clamp(1.2rem, 3.4vw, 1.55rem); font-weight: 700; }
.question-text.swap { animation: fade-in .35s ease both; }

.answers { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.answer {
  appearance: none;
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: border-color .2s ease, background-color .2s ease, transform .12s ease, opacity .25s ease;
}
.answer:hover:not(:disabled) { border-color: var(--c); background: color-mix(in srgb, var(--c-soft) 60%, var(--surface)); }
.answer:active:not(:disabled) { transform: scale(.99); }
.answer:disabled { cursor: default; }
.answer .key {
  flex: none;
  width: 28px; height: 28px;
  display: grid; place-items: center;
  border-radius: 8px;
  background: var(--surface-2);
  font-weight: 700;
  font-size: .85rem;
  color: var(--muted);
}
.answer.correct { border-color: var(--ok); background: var(--ok-soft); }
.answer.correct .key { background: var(--ok); color: #fff; }
.answer.wrong { border-color: var(--bad); background: var(--bad-soft); animation: shake .35s ease; }
.answer.wrong .key { background: var(--bad); color: #fff; }
.answer.dim { opacity: .45; }

.feedback {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 14px;
  animation: fade-in .3s ease both;
}
.feedback p { margin: 0; font-weight: 500; }
.feedback.ok { background: var(--ok-soft); }
.feedback.bad { background: var(--bad-soft); }
.feedback .btn { flex: none; }

/* ---------- Siegerbildschirm ---------- */
.win {
  max-width: 560px;
  margin: 24px auto 0;
  padding: 36px 24px 28px;
  text-align: center;
  display: grid;
  gap: 14px;
  justify-items: center;
}
.trophy { font-size: 64px; line-height: 1; animation: bounce 1.6s ease infinite; }
.win h2 { font-size: clamp(1.8rem, 6vw, 2.4rem); font-weight: 800; }
.win h2 .winner { color: var(--c); }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; width: 100%; margin-top: 6px; }
.stat {
  padding: 14px;
  border-radius: 14px;
  background: var(--c-soft);
  text-align: left;
  display: grid;
  gap: 2px;
}
.stat-name { font-weight: 700; display: flex; align-items: center; gap: 8px; min-width: 0; }
.stat-name span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stat-line { color: var(--muted); font-size: .9rem; font-variant-numeric: tabular-nums; }
.win-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-top: 8px; }

/* Konfetti */
.confetti { position: fixed; inset: 0; pointer-events: none; overflow: hidden; z-index: 10; }
.confetti i {
  position: absolute;
  top: -12px;
  width: 9px;
  height: 14px;
  border-radius: 2px;
  opacity: .9;
  animation: fall linear forwards;
}

/* ---------- Animationen ---------- */
@keyframes fade-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes pop { 0% { transform: scale(1); } 40% { transform: scale(1.08); } 100% { transform: scale(1); } }
@keyframes hop {
  0%, 100% { transform: translate(-50%, -50%); }
  45% { transform: translate(-50%, -95%); }
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}
@keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes fall {
  to { transform: translate3d(var(--dx), 105vh, 0) rotate(var(--rot)); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .confetti { display: none; }
}

/* ---------- Kleine Bildschirme ---------- */
@media (max-width: 600px) {
  .app { padding: 20px 16px 32px; }
  .names { grid-template-columns: 1fr; }
  .setup { padding: 18px; }
  .answers { grid-template-columns: 1fr; }
  .brand { display: none; }
  .track { padding: 12px; gap: 10px; }
  .lane { padding: 8px; }
  .cells { gap: 2px; }
  .cell { border-radius: 5px; font-size: .6rem; }
  .question { padding: 18px; }
  .feedback { flex-direction: column; align-items: stretch; }
  .stats { grid-template-columns: 1fr; }
}
@media (max-width: 420px) {
  .lane.long .cell:not(.finish) { font-size: 0; }
}