:root {
  --bg: #1c1f26;
  --bg-raised: #242833;
  --accent: #8aa2c4;
  --accent-dark: #b7c6df;
  --text: #ede9e1;
  --muted: #9a978f;
  --border: #383e4a;
  --disc-p1: #e07a63;
  --disc-p2: #8aa2c4;
  --danger: #e0a95f;
  --turn-mine: #5fbf82;
  --turn-opponent: #e0645a;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  min-height: 100%;
}

body {
  padding-bottom: max(16px, env(safe-area-inset-bottom));
}

h1, h2 {
  font-family: "Playfair Display", serif;
  font-weight: 700;
  margin: 0;
}

#app {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
}

.topbar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 12px 0 20px;
}

.topbar h1 {
  font-style: italic;
  font-size: 2rem;
  color: var(--accent-dark);
}

.topnav {
  display: flex;
  gap: 8px;
  width: 100%;
}

.nav-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 8px;
  border: 1px solid var(--border);
  background: var(--bg-raised);
  border-radius: 10px;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
}

.nav-btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #14171c;
}

.banner {
  background: #4a3a20;
  color: #f3d9ab;
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: 0.9rem;
  text-align: center;
}

.view { display: block; }
.view[hidden] { display: none; }

.hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 14px;
  text-align: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid var(--accent);
  background: var(--bg-raised);
  color: var(--accent-dark);
  font-size: 1rem;
  cursor: pointer;
}

.btn-block { width: 100%; }

.btn-primary {
  background: var(--accent);
  color: #14171c;
  border-color: var(--accent);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--muted);
  margin-top: 18px;
}

.icon { font-size: 1.1em; line-height: 1; }

.player-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.player-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  transition: background-color 120ms ease;
}

.player-list li:hover,
.player-list li:active,
.player-list li.row-touch-active {
  background-color: rgba(138, 162, 196, 0.16);
}

.player-list .player-name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.player-list button {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent-dark);
  font-size: 0.85rem;
  cursor: pointer;
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.opponent-name { font-weight: 600; }
.turn-indicator { color: var(--accent-dark); font-weight: 600; }
.turn-indicator.is-mine { color: var(--turn-mine); }
.turn-indicator.is-opponent { color: var(--turn-opponent); }

.turn-timer {
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  font-weight: 600;
  min-width: 2.5em;
  text-align: right;
}

.turn-timer.is-low {
  color: var(--disc-p1);
}

.board {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  aspect-ratio: 7 / 6;
}

.board .cell {
  background: var(--bg);
  border-radius: 50%;
  aspect-ratio: 1 / 1;
}

.board .col {
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  border-radius: 8px;
  padding: 2px;
  transition: background-color 120ms ease;
}

.board .col:hover,
.board .col:active {
  background-color: rgba(138, 162, 196, 0.16);
}

.board.is-locked .col {
  cursor: not-allowed;
}

.board.is-locked .col:hover,
.board.is-locked .col:active {
  background-color: transparent;
}

.board .cell.disc-1 { background: var(--disc-p1); }
.board .cell.disc-2 { background: var(--disc-p2); }

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.leaderboard-table th, .leaderboard-table td {
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.leaderboard-table tbody tr {
  transition: background-color 120ms ease;
}

.leaderboard-table tbody tr:hover,
.leaderboard-table tbody tr:active,
.leaderboard-table tbody tr.row-touch-active {
  background-color: rgba(138, 162, 196, 0.16);
}

.leaderboard-table th {
  color: var(--muted);
  font-weight: 600;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 10;
}

.modal-overlay[hidden] { display: none; }

.modal {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.modal h2 { margin-bottom: 8px; }

#name-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 14px;
}

#name-input {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
}

#result-title {
  margin-bottom: 18px;
}