:root {
  --bg: #0f1115;
  --panel: #171a21;
  --text: #e8e8ea;
  --muted: #9aa0ab;
  --accent: #4f8cff;
  --card-bg: #232733;
  --card-border: #343a48;
}

* { box-sizing: border-box; }

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

header, footer {
  padding: 1rem 1.5rem;
  text-align: center;
}

header h1 { margin-bottom: 0.25rem; }
.subtitle { color: var(--muted); max-width: 640px; margin: 0 auto; font-size: 0.9rem; }

.opponent-picker {
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}
.opponent-picker label { color: var(--muted); }
.opponent-picker select {
  background: var(--card-bg);
  color: var(--text);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
  font-size: 0.9rem;
  cursor: pointer;
}

main#app {
  flex: 1;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
  padding: 0 1rem 2rem;
}

#status-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  background: var(--panel);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.player-area {
  background: var(--panel);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.player-area h2 { margin: 0 0 0.5rem; font-size: 1rem; color: var(--muted); }
.round-score { color: var(--accent); font-weight: 700; }

.hand, .played {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  min-height: 3.5rem;
}

.card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 3.75rem;
  border-radius: 6px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  font-weight: 600;
}

button.card {
  cursor: pointer;
  transition: transform 0.1s ease, border-color 0.1s ease;
}
button.card:hover { border-color: var(--accent); transform: translateY(-2px); }
button.card:disabled { opacity: 0.4; cursor: default; transform: none; }

.hand .card { color: var(--muted); }
.played .card { background: transparent; border-style: dashed; color: var(--text); }

#pass-btn {
  margin-top: 0.75rem;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text);
  cursor: pointer;
}
#pass-btn:hover { border-color: var(--accent); }
#pass-btn:disabled { opacity: 0.4; cursor: default; }

#round-over {
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
  text-align: center;
}
#round-over[hidden] { display: none; }
#round-over-message { margin: 0 0 0.75rem; font-weight: 600; }
#next-round-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  border: none;
  background: var(--accent);
  color: white;
  font-weight: 600;
  cursor: pointer;
}

#log {
  font-size: 0.85rem;
  color: var(--muted);
  min-height: 1.5rem;
  margin-bottom: 1rem;
}

#game-over {
  display: flex;
  position: fixed;
  inset: 0;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.65);
  z-index: 100;
  padding: 1rem;
}
#game-over[hidden] { display: none; }
#game-over .modal-box {
  background: var(--panel);
  border-radius: 12px;
  padding: 2.5rem 3rem;
  text-align: center;
  max-width: 90vw;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}
#game-over-message { font-size: 1.75rem; font-weight: 700; margin: 0 0 1.5rem; }
#play-again-btn {
  padding: 0.6rem 1.5rem;
  border-radius: 6px;
  border: none;
  background: var(--accent);
  color: white;
  font-weight: 600;
  cursor: pointer;
}

.hand-count { color: var(--muted); font-size: 0.85rem; margin-bottom: 0.5rem; }

.pass-indicator {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  font-style: italic;
  color: var(--muted);
}
.pass-indicator[hidden] { display: none; }

footer a, .subtitle a { color: var(--accent); }

@media (max-width: 480px) {
  .card { width: 2.25rem; height: 3rem; font-size: 0.85rem; }
}