:root {
  color-scheme: dark;
  --bg: #0f172a;
  --panel: #111c36;
  --panel-2: #16213d;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #2563eb;
  --border: #24304f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: linear-gradient(180deg, var(--bg), #020617);
  color: var(--text);
}

a {
  color: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.hero,
.grid,
.rooms,
.players,
.action-row {
  display: grid;
  gap: 16px;
}

.hero {
  grid-template-columns: 1fr auto;
  align-items: center;
  margin-bottom: 24px;
}

.grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-bottom: 16px;
}

.panel,
.room-card,
.player-card {
  background: rgba(17, 28, 54, 0.92);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}

.player-card.current {
  border-color: var(--accent);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  background: var(--accent-2);
  color: white;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary {
  background: #334155;
}

input {
  width: 100%;
  margin: 8px 0 12px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
}

.rooms,
.players {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.board {
  display: grid;
  grid-template-columns: repeat(4, minmax(48px, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.cell button,
.cell span {
  width: 100%;
  min-height: 56px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
}

.cell button {
  cursor: pointer;
}

.cell.hidden span,
.cell.hidden button {
  background: #0b1223;
  color: var(--muted);
}

.status-list {
  padding-left: 18px;
}

.hint {
  color: var(--muted);
}

.auth {
  text-align: right;
}

form {
  margin: 0;
}

@media (max-width: 720px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .auth {
    text-align: left;
  }
}