:root {
  --bg: #e7d6bd;
  --panel: #2b211b;
  --panel2: #3b2f26;
  --ink: #f4ecdc;
  --muted: #c0ad95;
  --accent: #b5793f;
  --accent2: #8a9e5a;
  --line: #564636;
  --page-ink: #3a2c20;
  --page-muted: #7c6650;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #f3e8d4 0%, #ddc6a3 70%);
  color: var(--page-ink);
  min-height: 100vh;
}

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: 0.5px;
}

.home {
  display: inline-block;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  color: #3a1f06;
  padding: 8px 16px;
  border-radius: 9px;
  border: 1px solid #9a4e12;
  background: linear-gradient(180deg,
    #ffdca6 0%, #ffa948 16%, #f6861f 48%, #db6608 82%, #b85309 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.65),
    inset 0 -2px 5px rgba(120,50,0,.45),
    0 3px 8px rgba(0,0,0,.30);
  text-shadow: 0 1px 0 rgba(255,255,255,.35);
  transition: filter .15s ease, transform .05s ease;
}
.home:hover { color: #3a1f06; filter: brightness(1.07); }
.home:active {
  transform: translateY(1px);
  box-shadow:
    inset 0 1px 3px rgba(120,50,0,.6),
    0 1px 3px rgba(0,0,0,.3);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 16px 0 10px;
}

.controls label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--page-muted);
}

select {
  background: var(--panel2);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 8px;
  font-size: 14px;
}

.btn {
  background: var(--panel2);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .05s ease, background .15s ease, opacity .15s ease;
}
.btn:hover { background: #4a3a2e; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); }
.btn.primary:hover { background: #cf9560; }
.btn.primary.glow { box-shadow: 0 0 0 0 rgba(181,121,63,.6); animation: pulse 1.4s infinite; }

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(181,121,63,.55); }
  70% { box-shadow: 0 0 0 12px rgba(181,121,63,0); }
  100% { box-shadow: 0 0 0 0 rgba(181,121,63,0); }
}

.snd {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--page-muted);
  cursor: pointer;
  user-select: none;
}
.snd input { accent-color: var(--accent); cursor: pointer; }

.scorebar {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 4px 2px 0;
  padding: 8px 14px;
  background: rgba(43, 33, 27, 0.55);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
  color: var(--ink);
}
.scorebar .sc { font-weight: 600; }
.scorebar .sc b { font-weight: 800; }
.link-btn {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--page-muted);
  font-size: 13px;
  cursor: pointer;
  padding: 2px 4px;
  text-decoration: underline;
}
.link-btn:hover { color: var(--ink); }

.status {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 26px;
  margin: 10px 2px;
}
.turn { font-weight: 700; font-size: 15px; }
.note { color: var(--accent2); font-size: 14px; }
.note.win { color: #ffd166; font-weight: 700; font-size: 16px; }

/* winner announcement, shown as a light-gray button (click = new game) */
.win-btn {
  display: none;
  background: #e4e4e9;
  color: #26262e;
  border: 1px solid #c2c2cc;
  border-radius: 9px;
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(0,0,0,.18);
}
.win-btn.show { display: inline-block; }
.win-btn:hover { background: #f0f0f4; }
.win-btn:active { transform: translateY(1px); }

.board-wrap { position: relative; }

canvas {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 18px 50px rgba(0,0,0,.45);
  touch-action: manipulation;
}

/* big centered "it's your turn — roll" button (humans only) */
.roll-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  display: none;
  padding: 16px 32px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #fff8ef;
  background: var(--accent);
  border: 2px solid #e7c39a;
  border-radius: 14px;
  cursor: pointer;
  box-shadow: 0 12px 34px rgba(0,0,0,.45);
  animation: blink 1.05s ease-in-out infinite;
}
.roll-center.show { display: block; }
.roll-center:hover { background: #cf9560; }
.roll-center:active { transform: translate(-50%, -50%) translateY(1px); }

@keyframes blink {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(181,121,63,.6), 0 12px 34px rgba(0,0,0,.45); }
  50% { opacity: .5; box-shadow: 0 0 0 18px rgba(181,121,63,0), 0 12px 34px rgba(0,0,0,.45); }
}

.meta {
  display: flex;
  gap: 22px;
  margin: 12px 4px 0;
  font-size: 13px;
  color: var(--page-muted);
}
.dot {
  display: inline-block;
  width: 12px; height: 12px;
  border-radius: 50%;
  vertical-align: -1px;
  margin-right: 2px;
}
.dot.white { background: #f1ead4; border: 1px solid #b8b08e; }
.dot.black { background: #2a2a33; border: 1px solid #6b6b80; }

.rules {
  margin-top: 30px;
  padding: 18px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.rules h2 { margin: 0 0 8px; font-size: 17px; }
.rules p { margin: 0; color: var(--muted); line-height: 1.55; font-size: 14px; }
.rules b { color: var(--ink); }

@media (max-width: 560px) {
  .topbar h1 { font-size: 23px; }
  .controls { gap: 8px; }
  .btn { padding: 8px 12px; }
}