/* KETTENBRUCH — Gestaltung.
   Dunkel, weil das Spielfeld leuchtende Farben auf ruhigem Grund braucht. */

:root {
  --grund: #0a0a14;
  --karte: rgba(20, 22, 46, 0.88);
  --rand: rgba(255, 255, 255, 0.14);
  --schrift: #e6e9ff;
  --gedaempft: #9aa0c8;
  --leuchte: #3fb8ff;
  --gut: #4ade80;
  --warn: #ff4d6d;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0; padding: 0; height: 100%;
  background: var(--grund);
  color: var(--schrift);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  overflow: hidden;
  overscroll-behavior: none;
}

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

/* --- Schirme (Menue, Auswahl, ...) ------------------------------------------ */
.schirm {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  padding: max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom));
  background: linear-gradient(180deg, rgba(6, 7, 20, 0.72), rgba(6, 7, 20, 0.93));
  overflow-y: auto;
  z-index: 10;
}
.schirm.aus, .aus { display: none !important; }

.mitte {
  width: min(560px, 100%);
  background: var(--karte);
  border: 1px solid var(--rand);
  border-radius: 18px;
  padding: 26px 22px;
  text-align: center;
  backdrop-filter: blur(7px);
}
.mitte.breit { width: min(880px, 100%); }

h1 {
  margin: 0 0 6px;
  font-size: clamp(30px, 8vw, 54px);
  letter-spacing: 0.14em;
  background: linear-gradient(92deg, #ff4d6d, #ffd23f 38%, #4ade80 62%, #3fb8ff);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
h2 { margin: 0 0 10px; font-size: clamp(20px, 5vw, 30px); }
h3 { margin: 18px 0 8px; font-size: 15px; color: var(--gedaempft); text-align: left;
     text-transform: uppercase; letter-spacing: 0.1em; }
.unter { color: var(--gedaempft); font-size: 15px; line-height: 1.55; margin: 0 0 16px; }
.wer { font-size: 14px; color: var(--gedaempft); margin: 0 0 18px; }
.zaehler { color: var(--gedaempft); font-size: 0.6em; font-weight: normal; }
.text { text-align: left; font-size: 15px; line-height: 1.6; color: #cdd2f0; }
.text p { margin: 0 0 12px; }

/* --- Knoepfe ---------------------------------------------------------------- */
.knopfreihe { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin: 12px 0; }

/* Achtung: die Regeln haengen an der KLASSE, nicht am Element `button`.
   Der Rueckweg ins Portal ist ein <a> und erbt sonst nichts davon. */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 20px;
  font: inherit; font-size: 15px; font-weight: 600;
  color: var(--schrift); text-decoration: none;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--rand);
  border-radius: 11px;
  cursor: pointer;
  transition: background 0.15s, transform 0.08s;
}
.btn:hover { background: rgba(255, 255, 255, 0.13); }
.btn:active { transform: translateY(1px); }
.btn.big { padding: 15px 30px; font-size: 18px; }
.btn.portal { border-color: rgba(63, 184, 255, 0.4); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* --- Levelkacheln ----------------------------------------------------------- */
.kacheln { display: grid; gap: 9px; grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); }
.kachel {
  text-align: left; padding: 11px 13px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--rand); border-radius: 12px;
  cursor: pointer; font: inherit; color: var(--schrift);
}
.kachel:hover:not(:disabled) { background: rgba(255, 255, 255, 0.12); }
.kachel:disabled { opacity: 0.36; cursor: not-allowed; }
.kachel .nr { font-size: 12px; color: var(--gedaempft); }
.kachel .nm { display: block; font-weight: 600; margin: 2px 0 3px; }
.kachel .zl { font-size: 12px; color: var(--gedaempft); }
.kachel.geschafft { border-color: rgba(74, 222, 128, 0.45); }
.kachel.geschafft .nr::after { content: ' ✓'; color: var(--gut); }

/* --- Duell ------------------------------------------------------------------ */
.beitritt { display: flex; gap: 8px; justify-content: center; margin: 14px 0; }
#code {
  width: 118px; padding: 11px; font: inherit; font-size: 20px;
  text-align: center; text-transform: uppercase; letter-spacing: 0.18em;
  background: rgba(0, 0, 0, 0.35); color: var(--schrift);
  border: 1px solid var(--rand); border-radius: 11px;
}

/* --- HUD -------------------------------------------------------------------- */
#hud { position: fixed; inset: 0; pointer-events: none; z-index: 5; }
.kopf {
  position: absolute; top: max(8px, env(safe-area-inset-top)); left: 0; right: 0;
  display: flex; gap: 12px; align-items: center; justify-content: center;
  padding: 0 12px; font-size: 14px; color: var(--gedaempft);
  flex-wrap: wrap;
}
#hud-punkte { color: var(--schrift); font-weight: 700; font-variant-numeric: tabular-nums; }
.klein {
  pointer-events: auto; padding: 5px 12px; font: inherit; font-size: 13px;
  background: rgba(255, 255, 255, 0.08); color: var(--schrift);
  border: 1px solid var(--rand); border-radius: 8px; cursor: pointer;
}
.hilfe {
  position: absolute; left: 50%; transform: translateX(-50%);
  bottom: calc(max(14px, env(safe-area-inset-bottom)) + 118px);
  width: min(420px, 92vw); padding: 12px 15px;
  background: rgba(12, 14, 34, 0.92); border: 1px solid var(--rand); border-radius: 12px;
  font-size: 14px; line-height: 1.5; color: #cdd2f0;
}
.hilfe p { margin: 0 0 6px; } .hilfe p:last-child { margin: 0; }
.code-anzeige {
  position: absolute; top: max(40px, calc(env(safe-area-inset-top) + 32px)); right: 12px;
  font-size: 12px; color: var(--gedaempft);
  background: rgba(12, 14, 34, 0.8); border: 1px solid var(--rand);
  border-radius: 8px; padding: 5px 9px;
}

/* --- Steuerung fuers Handy --------------------------------------------------- */
.steuerung {
  position: absolute; left: 0; right: 0;
  bottom: max(10px, env(safe-area-inset-bottom));
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 6px; padding: 0 10px; pointer-events: auto;
}
.steuerung button {
  padding: 15px 0; font-size: 21px;
  background: rgba(255, 255, 255, 0.09); color: var(--schrift);
  border: 1px solid var(--rand); border-radius: 12px;
  cursor: pointer; touch-action: none; user-select: none;
}
.steuerung button:active { background: rgba(255, 255, 255, 0.2); }
@media (hover: hover) and (pointer: fine) { .steuerung { display: none; } }

/* --- Bestenliste ------------------------------------------------------------ */
table { width: 100%; border-collapse: collapse; font-size: 15px; }
td { padding: 8px 6px; border-bottom: 1px solid rgba(255, 255, 255, 0.07); text-align: left; }
td:last-child { text-align: right; font-variant-numeric: tabular-nums; }

/* --- Meldung ---------------------------------------------------------------- */
.meldung {
  position: fixed; left: 50%; top: 18%; transform: translateX(-50%);
  padding: 12px 20px; z-index: 30;
  background: rgba(12, 14, 34, 0.95); border: 1px solid var(--rand);
  border-radius: 12px; font-size: 15px;
}

/* Levelabschluss: ein spuerbarer Uebergang, nicht nur eine neue Tafel. */
@keyframes auftritt {
  0% { opacity: 0; transform: scale(0.86) translateY(14px); }
  60% { opacity: 1; transform: scale(1.03) translateY(0); }
  100% { transform: scale(1); }
}
#ende .mitte { animation: auftritt 0.42s cubic-bezier(0.2, 0.9, 0.3, 1.2); }
#ende.sieg .mitte { border-color: rgba(74, 222, 128, 0.6); box-shadow: 0 0 60px rgba(74, 222, 128, 0.18); }
#ende.aus-partie .mitte { border-color: rgba(255, 77, 109, 0.5); }