:root {
  --bg: #140d0a;
  --bg2: #22150f;
  --text: #f2e7d3;
  --muted: #b9a68a;
  --brass: #cfa75a;
  --brass-soft: rgba(207, 167, 90, .35);
  --card: rgba(255, 240, 215, .05);
  --line: rgba(255, 230, 190, .12);
  /* Holz */
  --mahogany-1: #7d2c19;
  --mahogany-2: #5e1d10;
  --mahogany-3: #441209;
  --maple-1: #e9caa0;
  --maple-2: #d9b07c;
  --grain-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.006 0.22' numOctaves='4' seed='7'/%3E%3CfeColorMatrix values='0 0 0 0 0.20 0 0 0 0 0.04 0 0 0 0 0.02 0 0 0 1.9 -0.62'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23n)'/%3E%3C/svg%3E");
  --grain-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.009 0.30' numOctaves='3' seed='3'/%3E%3CfeColorMatrix values='0 0 0 0 0.45 0 0 0 0 0.25 0 0 0 0 0.10 0 0 0 0.9 -0.30'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23n)'/%3E%3C/svg%3E");
  --grain-frame: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.30 0.008' numOctaves='3' seed='11'/%3E%3CfeColorMatrix values='0 0 0 0 0.08 0 0 0 0 0.02 0 0 0 0 0.01 0 0 0 1.1 -0.35'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23n)'/%3E%3C/svg%3E");
  /* Steinfarben (Highlight -> Kante) und Seitenkante */
  --w1: #f6efe1; --w2: #e6d8bb; --w3: #cfba93; --w4: #b29b72; --wside: #8c7652;
  --b1: #8f7d70; --b2: #4b3d35; --b3: #2f2520; --b4: #1c1512; --bside: #100b09;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100svh;
  background:
    radial-gradient(120% 80% at 50% 0%, #2b1a12 0%, var(--bg) 60%) fixed,
    var(--bg);
  color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
}
.hidden { display: none !important; }

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: max(10px, env(safe-area-inset-top)) 16px max(24px, env(safe-area-inset-bottom));
}

.top { display: flex; align-items: center; justify-content: space-between; margin: 4px 0 10px; }
h1 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 700;
  font-size: 2.1rem;
  letter-spacing: .04em;
  margin: 0;
  color: var(--brass);
  text-shadow: 0 1px 0 rgba(0,0,0,.6);
}

button {
  font: inherit;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: .65em 1.3em;
  cursor: pointer;
  transition: transform .12s, background .2s, border-color .2s;
}
button:active { transform: scale(.97); }
.primary {
  background: linear-gradient(180deg, #d9b268, #b48a3e);
  color: #24160a;
  font-weight: 650;
  box-shadow: 0 2px 10px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.35);
}
.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
  display: inline-flex; align-items: center; gap: .45em;
}
.ghost:hover { border-color: var(--brass-soft); }

/* ---------- Lobby ---------- */
.lobby { display: grid; place-items: center; min-height: 70svh; }
.card {
  width: 100%; max-width: 400px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 22px 24px;
  display: flex; flex-direction: column; gap: 10px;
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.lobby-pieces { display: flex; justify-content: center; gap: 14px; margin-bottom: 8px; font-size: 8px; }
.lobby-pieces .disc { width: 68px; height: 68px; }
.lead { color: var(--muted); margin: 0 0 8px; text-align: center; }
label { font-size: .85rem; color: var(--muted); }
input {
  font: inherit; color: var(--text);
  background: rgba(0,0,0,.25);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: .75em .9em;
  outline: none;
}
input:focus { border-color: var(--brass); }
.card .primary { margin-top: 8px; padding: .85em; }

/* ---------- Spieler ---------- */
.player {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--card);
  margin: 8px 0;
  transition: border-color .25s, box-shadow .25s;
  min-height: 48px;
}
.player.active { border-color: var(--brass); box-shadow: 0 0 0 1px var(--brass-soft), 0 0 18px rgba(207,167,90,.18); }
.player .disc { width: 26px; height: 26px; flex: none; transform: none; }
.player .disc.w { box-shadow: 0 2px 0 var(--wside), 0 3px 5px rgba(0,0,0,.5); }
.player .disc.b { box-shadow: 0 2px 0 var(--bside), 0 3px 5px rgba(0,0,0,.5), inset 0 1px 1px rgba(255,255,255,.15); }
.player .disc::before, .player .disc::after { box-shadow: none; border: 1px solid rgba(128,128,128,.25); }
.player .name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.player .tag { font-size: .75rem; color: var(--muted); }
.player .off { color: #e48a6f; }
.player .meta { margin-left: auto; display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: .9rem; white-space: nowrap; }
.player .wins b { color: var(--brass); }
.player .turn-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brass); box-shadow: 0 0 8px var(--brass); }

/* ---------- Brett ---------- */
.board-wrap { display: flex; justify-content: center; }
.frame {
  --size: max(280px, min(100vw - 32px, 600px, 100svh - 270px));
  --lbl: calc(var(--size) * .055);
  width: var(--size);
  display: grid;
  grid-template-columns: var(--lbl) 1fr var(--lbl);
  grid-template-rows: var(--lbl) auto var(--lbl);
  grid-template-areas: ". ft ." "rl bd rr" ". fb .";
  padding: calc(var(--size) * .016);
  border-radius: 10px;
  background:
    var(--grain-frame),
    linear-gradient(135deg, #6d2416 0%, #4a150c 45%, #5e1d12 70%, #3a0f08 100%);
  background-size: 400px 400px, 100% 100%;
  box-shadow:
    0 24px 50px rgba(0,0,0,.55),
    0 4px 0 #240905,
    inset 0 1px 0 rgba(255,210,170,.22),
    inset 0 -2px 6px rgba(0,0,0,.4);
}
.coords {
  display: flex; font-family: "Cormorant Garamond", Georgia, serif; font-weight: 600;
  color: rgba(230, 196, 130, .7); font-size: calc(var(--size) * .028); user-select: none;
}
.coords span { flex: 1; display: grid; place-items: center; }
.files { flex-direction: row; }
.ranks { flex-direction: column; }
.top-files { grid-area: ft; }
.bottom-files { grid-area: fb; }
.bottom-files span { place-items: end center; padding-bottom: 1px; }
.left-ranks span { place-items: center start; padding-left: 2px; }
.left-ranks { grid-area: rl; }
.right-ranks { grid-area: rr; }

.board {
  grid-area: bd;
  position: relative;
  aspect-ratio: 1;
  border-radius: 2px;
  box-shadow: 0 0 0 2px #2a0b05, 0 0 0 3.5px rgba(207,167,90,.55), 0 0 0 5px #2a0b05;
  container-type: inline-size;
  touch-action: manipulation;
}
.squares { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(8, 1fr); grid-template-rows: repeat(8, 1fr); }
.sq { position: relative; }
.sq.light {
  background: var(--grain-light), linear-gradient(160deg, var(--maple-1), var(--maple-2));
  background-size: 260px 260px, 100% 100%;
}
.sq.dark {
  background: var(--grain-dark), linear-gradient(160deg, var(--mahogany-1), var(--mahogany-2) 60%, var(--mahogany-3));
  background-size: 260px 260px, 100% 100%;
  box-shadow: inset 0 0 1.2cqw rgba(0,0,0,.35);
  cursor: pointer;
}
.sq::after { content: ""; position: absolute; inset: 0; pointer-events: none; transition: background .2s; }
.sq.last::after { background: rgba(255, 196, 92, .16); }
.sq.from::after { background: rgba(255, 196, 92, .26); }
.sq.target::before {
  content: ""; position: absolute; left: 50%; top: 50%; width: 30%; height: 30%;
  transform: translate(-50%, -50%); border-radius: 50%;
  background: radial-gradient(circle, rgba(240,205,130,.95), rgba(207,167,90,.65));
  box-shadow: 0 0 1.5cqw rgba(240,200,110,.6);
  z-index: 3; pointer-events: none;
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse { 50% { transform: translate(-50%, -50%) scale(.82); opacity: .8; } }

.squares::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(125deg, rgba(255,235,210,.10) 0%, rgba(255,235,210,0) 38%, rgba(0,0,0,0) 60%, rgba(0,0,0,.14) 100%);
}
.pieces { position: absolute; inset: 0; pointer-events: none; }
.piece {
  position: absolute; width: 12.5%; height: 12.5%;
  display: grid; place-items: center;
  z-index: 2;
  will-change: transform;
}
.piece.moving { z-index: 5; }
.piece.ghost { z-index: 1; }

/* ---------- Steine ---------- */
.disc {
  width: 80%; height: 80%;
  border-radius: 50%;
  position: relative;
  display: grid; place-items: center;
  transform: translateY(-3%);
  transition: box-shadow .2s, transform .2s;
}
.disc::before, .disc::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.disc::before { inset: 15%; }
.disc::after { inset: 31%; }

.disc.w {
  background: radial-gradient(circle at 34% 28%, var(--w1) 0%, var(--w2) 35%, var(--w3) 75%, var(--w4) 100%);
  box-shadow:
    0 .9cqw 0 var(--wside),
    0 1.4cqw 1.6cqw rgba(0,0,0,.55),
    inset 0 -.5cqw .9cqw rgba(120,95,55,.25),
    inset 0 .3cqw .3cqw rgba(255,255,255,.8);
}
.disc.w::before { box-shadow: inset 0 .35cqw .45cqw rgba(120,95,55,.28), 0 .25cqw 0 rgba(255,255,255,.75); }
.disc.w::after  { box-shadow: inset 0 .3cqw .4cqw rgba(120,95,55,.22), 0 .2cqw 0 rgba(255,255,255,.7); }

.disc.b {
  background: radial-gradient(circle at 34% 28%, var(--b1) 0%, var(--b2) 28%, var(--b3) 65%, var(--b4) 100%);
  box-shadow:
    0 .9cqw 0 var(--bside),
    0 1.4cqw 1.6cqw rgba(0,0,0,.6),
    inset 0 .3cqw .35cqw rgba(255,255,255,.14),
    inset 0 -.4cqw .8cqw rgba(0,0,0,.6);
}
.disc.b::before { box-shadow: inset 0 .35cqw .45cqw rgba(0,0,0,.7), 0 .25cqw 0 rgba(255,255,255,.09); }
.disc.b::after  { box-shadow: inset 0 .3cqw .4cqw rgba(0,0,0,.65), 0 .2cqw 0 rgba(255,255,255,.08); }

.disc.k::before, .disc.k::after { display: none; }
.disc.k { outline: .45cqw solid rgba(214,172,86,.85); outline-offset: -1.6cqw; }
.disc svg { width: 52%; height: 52%; color: #d9b25a; z-index: 1; filter: drop-shadow(0 .2cqw .2cqw rgba(0,0,0,.45)); }
.disc.w svg { color: #c39433; }
.lobby-pieces .disc.k, .player .disc.k { outline-width: 2px; outline-offset: -8px; }
.player .disc.k { outline: none; }

.piece.selectable .disc { box-shadow: 0 0 0 .5cqw rgba(207,167,90,.55), 0 .9cqw 0 var(--side, var(--bside)), 0 1.4cqw 1.6cqw rgba(0,0,0,.55); }
.piece.selectable .disc.w { --side: var(--wside); }
.piece.selected .disc {
  transform: translateY(-9%) scale(1.05);
  box-shadow: 0 0 0 .7cqw #f0cd80, 0 0 3cqw rgba(240,205,128,.7), 0 1.6cqw 0 var(--side, var(--bside)), 0 3cqw 2.6cqw rgba(0,0,0,.55);
}
.piece.selected .disc.w { --side: var(--wside); }

/* ---------- Status & Panels ---------- */
.status { text-align: center; min-height: 1.5em; margin: 12px 0 6px; font-size: 1.05rem; }
.status b { color: var(--brass); }
.status a { color: var(--brass); }
.status .must { color: #f0a774; font-weight: 600; }
.actions { display: flex; gap: 10px; justify-content: center; margin-bottom: 14px; }
.panel {
  border: 1px solid var(--line); border-radius: 14px; background: var(--card);
  padding: 4px 14px; margin-top: 10px;
}
.panel summary { cursor: pointer; padding: 10px 0; font-weight: 600; color: var(--muted); }
.panel[open] summary { color: var(--text); }
.rules { margin: 0 0 12px; padding-left: 1.1em; color: var(--muted); font-size: .92rem; }
.rules li { margin-bottom: 6px; }
.history { list-style: none; margin: 0 0 10px; padding: 0; }
.history li { display: flex; gap: 10px; align-items: baseline; padding: 8px 0; border-top: 1px solid var(--line); font-size: .92rem; }
.history .res { font-weight: 700; min-width: 5.5em; }
.history .win { color: #9fd38b; }
.history .loss { color: #e48a6f; }
.history .draw { color: var(--brass); }
.history .sub { color: var(--muted); font-size: .8rem; margin-left: auto; text-align: right; }
.history .empty { color: var(--muted); border: 0; }

.toast {
  position: fixed; left: 50%; bottom: max(24px, env(safe-area-inset-bottom));
  transform: translate(-50%, 20px); opacity: 0;
  background: #2f1f15; border: 1px solid var(--brass-soft); color: var(--text);
  padding: .6em 1.1em; border-radius: 16px; transition: .25s; pointer-events: none; z-index: 20;
  width: max-content; max-width: calc(100vw - 32px); text-align: center; font-size: .95rem;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.conn {
  position: fixed; top: 0; left: 0; right: 0; text-align: center; padding: 6px;
  background: #7a2a1a; color: #fff; font-size: .9rem; z-index: 30;
}

@media (prefers-reduced-motion: reduce) {
  .sq.target::before { animation: none; }
}