/* Neon Kubus – Spieloberfläche
   Layout: Vollbild-Leinwand, darüber zentrierte Panels mit Glas-Hintergrund. */
:root {
  --ink: #05060f;
  --panel: rgba(8, 10, 26, 0.72);
  --panel-line: rgba(190, 220, 255, 0.18);
  --text: #eef3ff;
  --muted: #9aa6c8;
  --hot: #ffd23f;
  --go: #5cff9d;
  --font-display: "Bungee", "Arial Black", Impact, sans-serif;
  --font-ui: "Chakra Petch", "Segoe UI", system-ui, sans-serif;
  color-scheme: dark;
}

[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  margin: 0;
  overflow: hidden;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-ui);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

#game {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: pointer;
}

button { font: inherit; color: inherit; }
button:focus-visible, .toggle input:focus-visible + span { outline: 3px solid var(--hot); outline-offset: 3px; }

/* ---------- HUD ---------- */
#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  padding-top: max(12px, env(safe-area-inset-top, 0px));
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-bottom: max(12px, env(safe-area-inset-bottom, 0px));
}
#hud button { pointer-events: auto; }

.iconbtn {
  position: absolute;
  top: max(12px, env(safe-area-inset-top, 0px));
  left: max(16px, env(safe-area-inset-left, 0px));
  width: 44px; height: 44px;
  border-radius: 12px;
  border: 1px solid var(--panel-line);
  background: rgba(5, 7, 20, 0.45);
  display: grid; place-items: center;
  cursor: pointer;
}
.pauseicon { display: flex; gap: 5px; }
.pauseicon::before, .pauseicon::after { content: ""; width: 5px; height: 16px; background: var(--text); border-radius: 1px; }

#prog {
  position: absolute;
  top: max(18px, calc(env(safe-area-inset-top, 0px) + 6px));
  left: 50%;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: 10px;
  width: min(46vw, 420px);
}
.track {
  flex: 1;
  height: 12px;
  border-radius: 99px;
  background: rgba(5, 7, 20, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.35);
  overflow: hidden;
}
.track > div { height: 100%; width: 0; background: linear-gradient(90deg, #7dffb0, #5cff9d); border-radius: 99px; }
#progPct {
  font-family: var(--font-display);
  font-size: 15px;
  min-width: 4.2ch;
  text-align: right;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.5);
}
#modeTag {
  position: absolute;
  top: max(44px, calc(env(safe-area-inset-top, 0px) + 32px));
  left: 50%; transform: translateX(-50%);
  font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--go);
}

#practiceTools {
  position: absolute;
  right: max(16px, env(safe-area-inset-right, 0px));
  bottom: max(16px, env(safe-area-inset-bottom, 0px));
  display: flex; gap: 8px;
}
#practiceTools[hidden] { display: none !important; }

.chip {
  border: 1px solid var(--panel-line);
  background: rgba(5, 7, 20, 0.55);
  border-radius: 999px;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: background 0.15s, border-color 0.15s;
}
.chip:hover { background: rgba(40, 50, 90, 0.7); border-color: rgba(255, 255, 255, 0.4); }
kbd {
  font-family: var(--font-ui);
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--muted);
}

#toast {
  position: absolute;
  top: 34%;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: clamp(18px, 3.4vw, 30px);
  color: var(--hot);
  text-shadow: 0 3px 0 rgba(0, 0, 0, 0.55);
  white-space: nowrap;
}
#toast.show { animation: pop 1.8s ease-out forwards; }
@keyframes pop {
  0% { opacity: 0; transform: translate(-50%, 10px) scale(0.8); }
  12% { opacity: 1; transform: translate(-50%, 0) scale(1.08); }
  22% { transform: translate(-50%, 0) scale(1); }
  80% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -14px); }
}

/* ---------- Bildschirme ---------- */
.screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  overflow-y: auto;
  padding-block: max(20px, env(safe-area-inset-top, 0px)) max(20px, env(safe-area-inset-bottom, 0px));
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  box-sizing: border-box;
}
.screen.dim { background: radial-gradient(ellipse at center, rgba(5, 6, 15, 0.55), rgba(5, 6, 15, 0.85)); backdrop-filter: blur(3px); }

.logo {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(40px, 8.5vw, 92px);
  line-height: 0.9;
  letter-spacing: 0.02em;
  text-align: center;
  color: #fff;
  text-shadow: 0 0.06em 0 #12163a, 0 0 0.5em rgba(120, 220, 255, 0.45);
  text-wrap: balance;
}
.logo span {
  display: block;
  font-size: 0.62em;
  letter-spacing: 0.3em;
  margin-left: 0.3em;
  background: linear-gradient(90deg, var(--hot), #ff7a2a 55%, #ff4fa3);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  text-shadow: none;
  filter: drop-shadow(0 0.07em 0 #12163a);
}
.tag { margin: 6px 0 0; text-align: center; color: var(--muted); font-size: 15px; letter-spacing: 0.04em; }

.levelrow { display: flex; align-items: center; gap: 14px; width: min(100%, 560px); }
.arrow {
  flex: none;
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.5);
  background: rgba(5, 7, 20, 0.5);
  font-family: var(--font-display);
  font-size: 26px; line-height: 1;
  cursor: pointer;
  display: grid; place-items: center;
  padding-bottom: 4px;
  transition: transform 0.12s, background 0.15s;
}
.arrow:hover { background: rgba(40, 50, 90, 0.7); }
.arrow:active { transform: scale(0.92); }

.card {
  --lvl: #c4f4ff;
  --lvl2: #127eb2;
  flex: 1; min-width: 0;
  position: relative;
  padding: 18px 22px 18px;
  border-radius: 18px;
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--lvl2) 38%, transparent), transparent 60%),
    var(--panel);
  border: 2px solid color-mix(in srgb, var(--lvl) 55%, transparent);
  box-shadow: 0 0 0 4px rgba(5, 7, 20, 0.5), 0 18px 40px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  display: flex; flex-direction: column; gap: 10px;
}
.card.swap { animation: swap 0.28s ease-out; }
@keyframes swap { from { opacity: 0.2; transform: translateY(6px) scale(0.98); } to { opacity: 1; transform: none; } }
.card.done::after {
  content: "Geschafft";
  position: absolute; top: -12px; right: 16px;
  font-family: var(--font-display);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--go);
  color: #032;
}
.card-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.diff {
  padding: 3px 10px; border-radius: 999px; font-weight: 700; letter-spacing: 0.1em;
  background: #2bd46a; color: #032;
}
.diff[data-d="1"] { background: #ffd23f; color: #3a2a00; }
.diff[data-d="2"] { background: #ff8a2a; color: #3a1200; }
.diff[data-d="3"] { background: #ff3d5e; color: #fff; }
.diff[data-d="4"] { background: linear-gradient(90deg, #ff3d5e, #c86bff); color: #fff; }
.card h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.05;
  color: #fff;
  text-shadow: 0 3px 0 rgba(0, 0, 0, 0.45);
  text-wrap: balance;
  overflow-wrap: anywhere;
}
.meta { display: flex; gap: 14px; color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; }
.bests { display: grid; gap: 8px; margin-top: 2px; }
.best { display: grid; grid-template-columns: 64px 1fr 4.5ch; align-items: center; gap: 10px; font-size: 13px; }
.best label { color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; font-size: 11px; }
.best b { font-variant-numeric: tabular-nums; text-align: right; }
.best .track { height: 10px; }
#bestP { background: linear-gradient(90deg, #7ad8ff, #3df2ff); }
.dots { display: flex; justify-content: center; gap: 6px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(255, 255, 255, 0.25); }
.dot.on { background: #fff; }

.actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px; }
.play {
  font-family: var(--font-display);
  font-size: 22px;
  padding: 14px 34px 16px;
  border-radius: 16px;
  border: 3px solid #12163a;
  background: linear-gradient(180deg, #8cffb6, #2bd46a);
  color: #062a14;
  box-shadow: 0 5px 0 #12163a, 0 0 30px rgba(92, 255, 157, 0.35);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
}
.play:hover { transform: translateY(-1px); }
.play:active { transform: translateY(4px); box-shadow: 0 1px 0 #12163a; }
.play.alt { background: linear-gradient(180deg, #ffe680, #ffc21a); color: #3a2a00; box-shadow: 0 5px 0 #12163a, 0 0 30px rgba(255, 210, 63, 0.3); }
.play.ghost { background: rgba(5, 7, 20, 0.6); color: var(--text); border-color: rgba(255, 255, 255, 0.4); box-shadow: 0 5px 0 rgba(0, 0, 0, 0.5); font-size: 17px; }

.toggle { display: inline-flex; align-items: center; cursor: pointer; }
.toggle input { position: absolute; opacity: 0; pointer-events: none; }
.toggle span {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--panel-line);
  background: rgba(5, 7, 20, 0.55);
  font-weight: 600; font-size: 14px;
}
.toggle span::before {
  content: ""; width: 30px; height: 16px; border-radius: 99px;
  background: rgba(255, 255, 255, 0.2);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.15);
  transition: background 0.15s;
}
.toggle input:checked + span { border-color: var(--go); color: var(--go); }
.toggle input:checked + span::before { background: var(--go); }

.custom {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 14px;
  border-radius: 16px;
  background: var(--panel);
  border: 1px solid var(--panel-line);
  max-width: 100%;
  box-sizing: border-box;
}
#iconPrev { width: 72px; height: 72px; flex: none; }
.swatches { display: grid; gap: 8px; min-width: 0; }
.swrow { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.swrow label { width: 64px; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; }
.sw {
  width: 24px; height: 24px; border-radius: 6px;
  border: 2px solid rgba(5, 7, 20, 0.9);
  background: var(--c);
  cursor: pointer; padding: 0;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.2);
}
.sw.on { box-shadow: 0 0 0 2px #fff; transform: scale(1.1); }

.hint { margin: 0; max-width: 62ch; text-align: center; color: var(--muted); font-size: 13px; line-height: 1.5; }
.portrait-hint { display: none; color: var(--hot); font-size: 13px; text-align: center; margin: 0; }
@media (orientation: portrait) and (max-width: 700px) { .portrait-hint { display: block; } }

/* Pause & Ziel */
.panel {
  width: min(100%, 420px);
  box-sizing: border-box;
  padding: 26px 24px 24px;
  border-radius: 20px;
  background: var(--panel);
  border: 2px solid var(--panel-line);
  box-shadow: 0 0 0 4px rgba(5, 7, 20, 0.5), 0 24px 50px rgba(0, 0, 0, 0.5);
  display: flex; flex-direction: column; align-items: stretch; gap: 12px;
  text-align: center;
}
.panel h2 {
  margin: 0;
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(26px, 5vw, 38px);
  line-height: 1.05;
  text-wrap: balance;
}
.panel .sub { margin: -4px 0 6px; color: var(--muted); font-size: 15px; }
.panel .play { width: 100%; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row2 .chip { justify-content: center; padding: 11px 12px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 4px 0 8px; }
.stats div { padding: 10px 6px; border-radius: 12px; background: rgba(255, 255, 255, 0.06); display: flex; flex-direction: column; gap: 2px; }
.stats b { font-family: var(--font-display); font-weight: 400; font-size: 24px; font-variant-numeric: tabular-nums; }
.stats span { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.12em; }
.complete-title { color: var(--hot); text-shadow: 0 4px 0 #12163a; }

/* Kleine Höhen (Handy quer) */
@media (max-height: 520px) {
  .screen { gap: 10px; justify-content: flex-start; }
  .logo { font-size: 34px; }
  .tag, .hint { display: none; }
  .card { padding: 12px 16px; gap: 6px; }
  .card h2 { font-size: 22px; }
  .play { font-size: 18px; padding: 10px 24px 12px; }
  .custom { padding: 6px 10px; }
  #iconPrev { width: 52px; height: 52px; }
  .panel { padding: 16px; gap: 8px; }
}
@media (max-width: 460px) {
  .arrow { width: 40px; height: 40px; font-size: 20px; }
  .levelrow { gap: 8px; }
  .swrow label { width: 100%; }
  #prog { width: min(58vw, 420px); top: max(24px, calc(env(safe-area-inset-top, 0px) + 12px)); }
}
@media (prefers-reduced-motion: reduce) {
  .card.swap, #toast.show { animation: none; }
}