:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c2330;
  --felt: #1c4532;
  --felt-edge: #2f6b4f;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --gold: #d4a017;
  --red: #ef5350;
  --green: #4caf7d;
  --card-bg: #f5f2ea;
  --card-red: #c62828;
  --card-black: #1a1a1a;
  --radius: 12px;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header { text-align: center; padding: 1.2rem 1rem 0.4rem; }
header h1 { margin: 0; font-size: 1.6rem; letter-spacing: 0.02em; }
.subtitle { color: var(--muted); margin: 0.3rem auto 0; max-width: 42rem; font-size: 0.85rem; }
.model-info { color: var(--accent); }

main { flex: 1; width: 100%; max-width: 60rem; margin: 0 auto; padding: 0.8rem 1rem; }
.hidden { display: none !important; }

.panel {
  background: var(--panel);
  border: 1px solid #30363d;
  border-radius: var(--radius);
  padding: 1.5rem;
}

.loading { text-align: center; }
.spinner {
  width: 2.2rem; height: 2.2rem;
  border: 3px solid #30363d;
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto 0.8rem;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.topbar {
  display: flex; flex-wrap: wrap; gap: 0.8rem;
  justify-content: space-between; align-items: center;
  padding: 0.5rem 0.2rem;
}
.score { font-weight: 600; }
.score span#score.positive { color: var(--green); }
.score span#score.negative { color: var(--red); }
.controls { display: flex; flex-wrap: wrap; gap: 0.9rem; align-items: center; color: var(--muted); font-size: 0.85rem; }
.controls select {
  background: var(--panel-2); color: var(--text);
  border: 1px solid #30363d; border-radius: 6px; padding: 0.25rem 0.4rem;
  margin-left: 0.3rem;
}
.advice-toggle { cursor: pointer; user-select: none; }
.new-game {
  background: var(--panel-2); color: var(--text);
  border: 1px solid #3d444d; border-radius: 6px;
  padding: 0.3rem 0.8rem; font-size: 0.85rem; cursor: pointer;
}
.new-game:hover { border-color: var(--accent); }

.table-wrap { padding: 0.4rem 0; }
.table {
  position: relative;
  background: radial-gradient(ellipse at center, var(--felt) 0%, #143726 100%);
  border: 10px solid #3a2b18;
  outline: 2px solid var(--felt-edge);
  outline-offset: -12px;
  border-radius: 45% / 38%;
  min-height: 26rem;
  display: grid;
  grid-template-rows: 1fr auto 1fr;
  padding: 1rem;
}

.seat {
  display: flex; flex-direction: column; align-items: center; gap: 0.3rem;
  justify-self: center; align-self: center;
  min-width: 9rem;
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius);
  background: rgba(13, 17, 23, 0.55);
  border: 1px solid transparent;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.seat.acting { border-color: var(--gold); box-shadow: 0 0 14px rgba(212, 160, 23, 0.35); }
.seat.folded { opacity: 0.45; }
.seat-top { grid-row: 1; }
.seat-right { grid-row: 1; position: absolute; right: 6%; top: 34%; }
.seat-bottom { grid-row: 3; }

.seat .name { font-weight: 600; font-size: 0.9rem; display: flex; gap: 0.4rem; align-items: center; }
.seat .badge {
  font-size: 0.65rem; font-weight: 700;
  background: var(--gold); color: #1a1a1a;
  border-radius: 999px; padding: 0.05rem 0.45rem;
}
.seat .badge.pos { background: #30363d; color: var(--text); }
.seat .stack { color: var(--muted); font-size: 0.8rem; }
.seat .bet { color: var(--gold); font-size: 0.8rem; min-height: 1.1em; }
.seat .last-action { color: var(--accent); font-size: 0.75rem; min-height: 1.05em; }

.cards { display: flex; gap: 0.3rem; min-height: 3.4rem; }
.card {
  width: 2.4rem; height: 3.4rem;
  background: var(--card-bg);
  border-radius: 6px;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  font-weight: 700; font-size: 1.05rem; line-height: 1;
  box-shadow: 0 2px 5px rgba(0,0,0,0.45);
}
.card .suit { font-size: 1.1rem; }
.card.red { color: var(--card-red); }
.card.black { color: var(--card-black); }
.card.back {
  background: repeating-linear-gradient(45deg, #2a4d8f, #2a4d8f 4px, #23407a 4px, #23407a 8px);
  border: 2px solid #d7dce3;
}

.board-area { grid-row: 2; text-align: center; padding: 0.4rem 0; }
.pot { color: var(--gold); font-weight: 600; margin-bottom: 0.4rem; min-height: 1.2em; }
.board { display: flex; gap: 0.35rem; justify-content: center; min-height: 3.4rem; }
.banner { margin-top: 0.5rem; font-weight: 600; min-height: 1.3em; }
.banner .win { color: var(--green); }
.banner .lose { color: var(--red); }

.action-area { min-height: 5.4rem; padding: 0.6rem 0.2rem; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.actions button {
  background: var(--panel-2); color: var(--text);
  border: 1px solid #3d444d; border-radius: 8px;
  padding: 0.55rem 0.9rem;
  font-size: 0.9rem; font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.actions button:hover { background: #263041; border-color: var(--accent); }
.actions button.fold { border-color: #6e3b3b; }
.actions button.fold:hover { border-color: var(--red); }
.actions button.allin { border-color: #6e5b1e; color: var(--gold); }
.actions button.primary { border-color: var(--accent); }
.actions button.deal {
  background: var(--accent); color: #0d1117; border-color: var(--accent);
  font-size: 1rem; padding: 0.6rem 1.6rem;
}
.actions .hint { width: 100%; text-align: center; color: var(--muted); font-size: 0.85rem; }

.advice {
  max-width: 30rem; margin: 0 auto 0.7rem;
  background: var(--panel);
  border: 1px solid #30363d; border-radius: var(--radius);
  padding: 0.7rem 0.9rem;
  font-size: 0.8rem;
}
.advice h3 { margin: 0 0 0.4rem; font-size: 0.8rem; color: var(--muted); font-weight: 600; }
.advice .row { display: flex; align-items: center; gap: 0.5rem; margin: 0.15rem 0; }
.advice .label { width: 7.5rem; color: var(--text); }
.advice .bar-track { flex: 1; height: 0.55rem; background: #21262d; border-radius: 999px; overflow: hidden; }
.advice .bar { height: 100%; background: var(--accent); border-radius: 999px; }
.advice .pct { width: 3.2rem; text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }
.advice .value-line { margin-top: 0.4rem; color: var(--muted); }

.log-wrap { margin: 0.4rem 0.2rem; color: var(--muted); font-size: 0.85rem; }
.log {
  max-height: 14rem; overflow-y: auto;
  background: var(--panel);
  border: 1px solid #30363d; border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
  white-space: pre-wrap;
}

footer { text-align: center; color: var(--muted); font-size: 0.72rem; padding: 0.6rem 1rem 1.2rem; }
footer p { max-width: 46rem; margin: 0 auto; }

@media (max-width: 640px) {
  .table { min-height: 30rem; }
  .seat-right { position: static; grid-row: 1; }
  .table { grid-template-columns: 1fr 1fr; }
  .seat-top { grid-column: 1; }
  .seat-right { grid-column: 2; align-self: center; justify-self: center; }
  .board-area { grid-column: 1 / -1; }
  .seat-bottom { grid-column: 1 / -1; }
  .card { width: 2rem; height: 2.9rem; font-size: 0.9rem; }
}