:root {
  --bg: #0e1116;
  --bg2: #161b22;
  --panel: rgba(22, 27, 34, 0.92);
  --border: #2a323d;
  --fg: #e6edf3;
  --muted: #8b97a6;
  --accent: #4f9dff;
  --black-stone: #21262d;
  --white-stone: #e8eaed;
  --danger: #ff6b6b;
  --ok: #3fb950;
}

* { box-sizing: border-box; }

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

#app { position: relative; width: 100%; height: 100%; }

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

/* ===== 上部バー ===== */
#topbar {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: linear-gradient(to bottom, rgba(14,17,22,0.95), rgba(14,17,22,0));
  z-index: 10;
  pointer-events: none;
}
#topbar > * { pointer-events: auto; }

.brand { font-weight: 700; font-size: 15px; letter-spacing: 0.04em; }

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

.ctl { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }

.hint { font-size: 11px; color: var(--muted); font-family: ui-monospace, Consolas, monospace; white-space: nowrap; }
@media (max-width: 980px) { .hint { display: none; } }

select, button {
  font: inherit;
  font-size: 13px;
  color: var(--fg);
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 6px 10px;
  cursor: pointer;
}
select:hover, button:hover { border-color: #3d4854; }
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: #06121f; font-weight: 600; }
button.primary:hover { background: #6aabff; }

/* ===== 右パネル ===== */
#panel {
  position: absolute;
  top: 56px; right: 12px;
  width: 268px;
  max-height: calc(100% - 72px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 10;
  scrollbar-width: thin;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  backdrop-filter: blur(8px);
}

.card-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.row { display: flex; justify-content: space-between; align-items: baseline; padding: 3px 0; font-size: 13px; }
.label { color: var(--muted); font-size: 12px; }
.value { font-weight: 600; }
.mono { font-family: ui-monospace, "SF Mono", Consolas, monospace; font-size: 12px; }

.status { margin-top: 8px; font-size: 12px; color: var(--muted); min-height: 1em; }
.status.win { color: var(--ok); font-weight: 600; }
.status.lose { color: var(--danger); font-weight: 600; }

.tag {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  background: #2a323d;
  color: var(--muted);
  letter-spacing: 0;
  text-transform: none;
}
.tag.stale { background: #3a2f18; color: #d9a441; }

/* 勝率バー */
.winbar {
  position: relative;
  height: 10px;
  border-radius: 5px;
  overflow: hidden;
  background: var(--white-stone);
  border: 1px solid var(--border);
  margin-bottom: 5px;
}
.winbar-black {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 50%;
  background: linear-gradient(90deg, #0b0e12, #2c333d);
  transition: width 260ms ease;
}
.winbar-mid {
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 1px;
  background: var(--accent);
  opacity: 0.5;
}
.winbar-legend { display: flex; justify-content: space-between; font-size: 11px; color: var(--muted); margin-bottom: 8px; }

#evalcard.stale .winbar, #evalcard.stale .winbar-legend, #evalcard.stale #score { opacity: 0.45; }

.note { font-size: 11px; color: var(--muted); line-height: 1.5; margin: 8px 0 0; }

.toggle { display: flex; align-items: center; gap: 8px; font-size: 13px; padding: 4px 0; cursor: pointer; }
.toggle input { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }

.btnrow { display: flex; gap: 8px; margin-top: 10px; }
.btnrow button { flex: 1; font-size: 12px; padding: 6px 4px; }

.record {
  margin: 0;
  padding-left: 30px;
  max-height: 150px;
  overflow-y: auto;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.7;
}
.record li.black::marker { color: var(--fg); }
.record li b { color: var(--fg); font-weight: 600; }

/* ===== 思考中 ===== */
.thinking {
  position: absolute;
  left: 50%; bottom: 28px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  z-index: 10;
  backdrop-filter: blur(8px);
}
.thinking-text { white-space: nowrap; }
#elapsed { color: var(--muted); margin-left: 6px; font-family: ui-monospace, Consolas, monospace; }

.spinner {
  width: 15px; height: 15px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  flex: none;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== オーバーレイ ===== */
.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(8, 10, 14, 0.72);
  z-index: 20;
  backdrop-filter: blur(3px);
}
.boot-box, .result-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 34px;
  text-align: center;
  max-width: 380px;
}
.boot-box .spinner { margin: 0 auto 14px; width: 22px; height: 22px; }
.boot-box p, .result-box p { color: var(--muted); font-size: 13px; line-height: 1.6; }
.result-box h2 { margin: 0 0 6px; font-size: 22px; }
.result-box button { margin: 14px 5px 0; }

.hidden { display: none !important; }

/* ===== 狭い画面 ===== */
@media (max-width: 820px) {
  #panel {
    top: auto; bottom: 0; left: 0; right: 0;
    width: 100%;
    max-height: 42%;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 8px;
    gap: 8px;
    border-top: 1px solid var(--border);
    background: rgba(14, 17, 22, 0.9);
  }
  .card { min-width: 208px; flex: none; }
  .thinking { bottom: auto; top: 58px; }
  .brand { display: none; }
  #topbar { padding: 8px 10px; }
}