:root {
  --bg: #10161f;
  --panel: #1b2430;
  --panel-2: #232f3e;
  --line: #4a5b6e;
  --text: #e8eef5;
  --muted: #9fb0c3;
  --accent: #e8b04b;
  --p1: #f4f7fb;
  --p1-edge: #b9c4d1;
  --p2: #2c3a4b;
  --p2-edge: #6f8299;
  --danger: #d8604f;
  --ok: #5fbf8a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at 20% 0%, #1c2a3a 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}

.app {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.app-header h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  letter-spacing: 0.02em;
}

.subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  max-width: 60ch;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr);
  gap: 20px;
  margin-top: 24px;
  align-items: start;
}

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid #2c3a4b;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.hidden {
  display: none !important;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.setup fieldset {
  border: 1px solid #33445a;
  border-radius: 12px;
  padding: 10px 12px 12px;
  margin: 0 0 14px;
}

.setup legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.setup label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 4px;
  cursor: pointer;
  border-radius: 8px;
}

.setup label:hover {
  background: rgba(255, 255, 255, 0.04);
}

button {
  font: inherit;
  cursor: pointer;
  border-radius: 10px;
  border: 1px solid #3b4d63;
  background: #27374a;
  color: var(--text);
  padding: 9px 16px;
  transition: transform 0.06s ease, background 0.15s ease;
}

button:hover {
  background: #31445a;
}

button:active {
  transform: translateY(1px);
}

button.primary {
  background: var(--accent);
  border-color: #c9942f;
  color: #21160a;
  font-weight: 600;
}

button.primary:hover {
  background: #f0bd5c;
}

button.danger {
  border-color: #7c3b31;
  background: #4a2a25;
}

button.link {
  background: none;
  border: none;
  color: var(--accent);
  padding: 4px 6px;
}

.board-wrap {
  display: flex;
  justify-content: center;
}

.board {
  width: 100%;
  max-width: 520px;
  height: auto;
  touch-action: manipulation;
}

.board line {
  stroke: var(--line);
  stroke-width: 6;
  stroke-linecap: round;
}

.board .point {
  fill: #10161f;
  stroke: var(--line);
  stroke-width: 3;
  transition: fill 0.15s ease;
}

.board .point.target {
  fill: rgba(232, 176, 75, 0.55);
  cursor: pointer;
}

.board .point.selectable {
  cursor: pointer;
}

.board .point.removable {
  fill: rgba(216, 96, 79, 0.65);
  cursor: pointer;
}

.board .piece {
  pointer-events: none;
}

.board .piece.p1 {
  fill: var(--p1);
  stroke: var(--p1-edge);
  stroke-width: 2;
}

.board .piece.p2 {
  fill: var(--p2);
  stroke: var(--p2-edge);
  stroke-width: 2;
}

.board .piece.selected {
  stroke: var(--accent);
  stroke-width: 5;
}

.board .piece.last {
  filter: drop-shadow(0 0 6px var(--accent));
}

.board .hit {
  fill: transparent;
  cursor: pointer;
}

.board-legend {
  display: flex;
  gap: 18px;
  justify-content: center;
  color: var(--muted);
  margin-top: 8px;
  font-size: 0.9rem;
}

.dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: -1px;
}

.dot.p1 {
  background: var(--p1);
}

.dot.p2 {
  background: var(--p2);
  border: 1px solid var(--p2-edge);
}

.status {
  font-size: 1.05rem;
  min-height: 1.6em;
}

.error {
  color: #ffb4a6;
  background: rgba(216, 96, 79, 0.15);
  border: 1px solid rgba(216, 96, 79, 0.4);
  border-radius: 8px;
  padding: 8px 10px;
  margin: 0 0 12px;
  font-size: 0.9rem;
}

.scores {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 14px 0;
}

.scores div {
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid #33445a;
  border-radius: 10px;
  padding: 10px;
}

.scores dt {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.scores dd {
  margin: 4px 0 0;
  font-size: 1rem;
  font-weight: 600;
}

.phase-info {
  color: var(--muted);
  font-size: 0.9rem;
  min-height: 1.2em;
}

.controls {
  display: flex;
  gap: 10px;
  margin: 14px 0;
}

.move-log {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 180px;
  overflow-y: auto;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid #2c3a4b;
  padding-top: 10px;
}

.move-log li {
  padding: 2px 0;
}

.stats-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.stats-head h2 {
  margin: 0;
}

table.stats-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

table.stats-table th,
table.stats-table td {
  text-align: right;
  padding: 6px 6px;
  border-bottom: 1px solid #2c3a4b;
}

table.stats-table th:first-child,
table.stats-table td:first-child {
  text-align: left;
}

table.stats-table th {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stats-summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.stats-summary div {
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid #33445a;
  border-radius: 10px;
  padding: 8px 10px;
}

.stats-summary span {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
}

.stats-summary strong {
  font-size: 1.15rem;
}

.storage-note {
  color: var(--muted);
  font-size: 0.78rem;
  margin-top: 12px;
}

.recent-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.recent-list li {
  padding: 4px 0;
  border-bottom: 1px solid #232f3e;
}