* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  color: var(--ink);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background: linear-gradient(180deg, var(--bg-1), var(--bg-2));
}

.page {
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 12px;
  padding: 12px;
  overflow: hidden;
}

.topbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  box-shadow: 0 8px 28px var(--shadow);
}

.title {
  margin: 0;
  font-size: 1.12rem;
  letter-spacing: 0.01em;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(6, minmax(90px, 1fr));
  gap: 8px;
  min-width: 520px;
}

.stat {
  border: 1px solid #eadfcd;
  border-radius: 8px;
  background: var(--surface);
  padding: 8px;
  text-align: center;
}

.stat .k {
  font-size: 0.72rem;
  color: var(--muted);
  display: block;
}

.stat .v {
  font-size: 1.05rem;
  font-weight: 700;
}

.main {
  min-height: 0;
  display: grid;
  grid-template-columns: 330px 1fr;
  gap: 12px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 8px 28px var(--shadow);
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  padding: 10px 12px;
  border-bottom: 1px solid #eadfcd;
}

.panel-header h2 {
  margin: 0;
  font-size: 1rem;
}

.panel-header p {
  margin: 4px 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.games {
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1;
  min-height: 0;
}

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

thead th {
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 1;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 8px 10px;
  border-bottom: 1px solid #efe5d5;
}

tbody tr {
  cursor: pointer;
}

tbody tr:hover {
  background: var(--row-hover);
}

tbody tr.active {
  background: var(--row-active);
}

#games-body tr:last-child td {
  border-bottom: none;
}

.right {
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.controls {
  display: flex;
  gap: 6px;
  flex-wrap: nowrap;
  align-items: center;
  padding: 2px 8px 1px;
  border-bottom: 1px solid #eadfcd;
  overflow-x: auto;
  scrollbar-width: thin;
  line-height: 1;
  min-height: 0;
  height: 34px;
  margin: 0;
}

.controls>* {
  margin: 0;
  align-self: center;
}

button {
  border: 1px solid #d2c3ab;
  background: var(--surface);
  color: var(--ink);
  border-radius: 6px;
  padding: 2px 7px;
  font-weight: 600;
  font-size: 0.8rem;
  line-height: 1.2;
  cursor: pointer;
}

.controls label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  white-space: nowrap;
  margin: 0;
  line-height: 1;
}

.controls label span {
  display: inline-block;
  line-height: 1;
}

.controls select {
  height: 24px;
  font-size: 0.8rem;
  padding: 0 4px;
}

.controls input[type="range"] {
  width: 150px;
  min-width: 130px;
  margin: 0;
  height: 12px;
  padding: 0;
}

button.primary {
  background: var(--accent);
  border-color: #0f5a3f;
  color: #fff;
}

#prev-btn,
#next-btn {
  width: 52px;
  min-width: 52px;
  text-align: center;
}

#play-btn {
  width: 62px;
  min-width: 62px;
  text-align: center;
}

select,
input[type="range"] {
  accent-color: var(--accent);
}

.turn-badge {
  margin-left: auto;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
  line-height: 1;
}

.content {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(320px, 42%) 1fr;
  gap: 12px;
  padding: 8px 12px 12px;
  align-items: stretch;
  margin: 0;
  flex: 1 1 auto;
}

.board-wrap {
  min-height: 0;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 8px;
  min-height: 520px;
}

.legend {
  display: flex;
  gap: 8px;
  flex-wrap: nowrap;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: thin;
  font-size: 0.74rem;
  color: var(--muted);
  padding-top: 5px;
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 5px;
  vertical-align: baseline;
}

.board {
  min-height: 0;
  height: auto;
  width: 100%;
  display: grid;
  gap: 2px;
  background: var(--grid);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px;
  align-content: start;
}

.cell {
  background: var(--cell);
  width: 100%;
  min-width: 0;
  min-height: 0;
  aspect-ratio: 1 / 1;
  position: relative;
  border-radius: 2px;
}

.snake-turn-cell::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--turn-color, transparent);
  z-index: 0;
  pointer-events: none;
}

/* 50% = quarter-circle at the inner corner of the bend */
.snake-turn-cell.snake-turn-ur::after {
  border-top-right-radius: 50%;
}

.snake-turn-cell.snake-turn-ul::after {
  border-top-left-radius: 50%;
}

.snake-turn-cell.snake-turn-dr::after {
  border-bottom-right-radius: 50%;
}

.snake-turn-cell.snake-turn-dl::after {
  border-bottom-left-radius: 50%;
}

.food {
  background-image: radial-gradient(circle at center, #d73a31 0 45%, transparent 48%);
  background-repeat: no-repeat;
  background-position: center;
  background-size: 78% 78%;
}

.hazard {
  background-color: var(--hazard);
}

.hazard::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(20, 10, 50, 0.38) repeating-linear-gradient(135deg,
      rgba(80, 60, 140, 0.6) 0,
      rgba(80, 60, 140, 0.6) 2px,
      transparent 2px,
      transparent 6px);
  z-index: 4;
  pointer-events: none;
  border-radius: inherit;
}

.snake-you {
  background: var(--you);
}

.snake-enemy {
  background: var(--enemy);
}

.snake-head {
  outline: 2px solid var(--head-ring);
  outline-offset: -2px;
}

.snake-head::after {
  content: "";
  position: absolute;
  left: 30%;
  top: 30%;
  width: 40%;
  height: 40%;
  border-radius: 50%;
  background: var(--head-ring);
  opacity: 0.9;
  z-index: 2;
}

.snake-head.head-style-1::after {
  border-radius: 50%;
}

.snake-head.head-style-2::after {
  border-radius: 2px;
  transform: rotate(45deg);
}

.snake-head.head-style-3::after {
  width: 52%;
  height: 28%;
  top: 36%;
  left: 24%;
  border-radius: 999px;
}

.snake-head.head-style-4::after {
  width: 24%;
  height: 56%;
  top: 22%;
  left: 38%;
  border-radius: 999px;
}

.snake-head.head-style-5::after {
  width: 46%;
  height: 46%;
  top: 27%;
  left: 27%;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  border-radius: 0;
}

.snake-head.has-head-icon::after {
  display: none;
}

.snake-head.has-head-icon {
  outline: none;
}

.snake-tail-you::after,
.snake-tail-enemy::after {
  content: "";
  position: absolute;
  right: 6%;
  top: 32%;
  width: 38%;
  height: 36%;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.55);
  z-index: 2;
}

.snake-tail-you.tail-style-1::after,
.snake-tail-enemy.tail-style-1::after {
  width: 38%;
  height: 36%;
}

.snake-tail-you.tail-style-2::after,
.snake-tail-enemy.tail-style-2::after {
  width: 24%;
  height: 56%;
  right: 10%;
  top: 22%;
  border-radius: 999px;
}

.snake-tail-you.tail-style-3::after,
.snake-tail-enemy.tail-style-3::after {
  width: 44%;
  height: 24%;
  right: 8%;
  top: 38%;
  border-radius: 999px;
}

.snake-tail-you.tail-style-4::after,
.snake-tail-enemy.tail-style-4::after {
  width: 34%;
  height: 34%;
  right: 10%;
  top: 32%;
  transform: rotate(45deg);
  border-radius: 1px;
}

.snake-tail-you.tail-style-5::after,
.snake-tail-enemy.tail-style-5::after {
  width: 42%;
  height: 42%;
  right: 8%;
  top: 29%;
  clip-path: polygon(100% 50%, 0 0, 0 100%);
  border-radius: 0;
}

.snake-tail-you.has-tail-icon::after,
.snake-tail-enemy.has-tail-icon::after {
  display: none;
}

.snake-tail-you.has-tail-icon,
.snake-tail-enemy.has-tail-icon {
  box-shadow: none;
}

.icon-layer {
  position: absolute;
  inset: 2%;
  background: var(--icon-color, currentColor);
  -webkit-mask-image: var(--icon-url);
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
  mask-image: var(--icon-url);
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
  transform: var(--icon-transform, rotate(0deg));
  transform-origin: center;
  pointer-events: none;
  z-index: 2;
}

.icon-layer--tail {
  z-index: 2;
  opacity: 0.92;
}

.icon-layer--head {
  z-index: 3;
  opacity: 1;
  background: none;
  -webkit-mask-image: none;
  mask-image: none;
}

.icon-layer--head>svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

.thinking {
  min-height: 0;
  overflow: auto;
  border: 1px solid #e8dcc8;
  border-radius: 10px;
  background: var(--surface);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 420px;
}

.raw-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 0;
  flex: 1 1 auto;
}

.think-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 8px;
}

.chip {
  border: 1px solid #ebdfcb;
  border-radius: 8px;
  padding: 8px;
  background: var(--surface-soft);
}

.chip .k {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
}

.chip .v {
  font-size: 0.95rem;
  font-weight: 700;
}

.section-title {
  margin: 0;
  font-size: 0.86rem;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.reason-list {
  margin: 0;
  padding-left: 18px;
  font-size: 0.85rem;
}

.score-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  table-layout: fixed;
}

.score-table td,
.score-table th {
  border-bottom: 1px solid #f0e7d7;
  padding: 6px;
  white-space: normal;
  overflow-wrap: anywhere;
}

.snake-row {
  background: var(--snake-row-bg, transparent);
  cursor: pointer;
  transition: opacity 0.15s, filter 0.15s;
}

.snake-row td {
  color: var(--ink);
}

.snake-row td:first-child {
  border-left: 4px solid var(--snake-row-color, transparent);
  padding-left: 8px;
}

.snake-row.highlighted {
  outline: 2px solid var(--snake-row-color, var(--line));
  outline-offset: -1px;
}

.snakes-section.has-highlight .snake-row:not(.highlighted) {
  opacity: 0.25;
  filter: grayscale(0.6);
}

.snake-row.dead-row {
  filter: grayscale(0.55);
  opacity: 0.78;
}

.name-cell {
  word-break: break-word;
}

.num-cell {
  white-space: nowrap;
}

.health-wrap {
  display: inline-block;
  width: 120px;
  height: 10px;
  border-radius: 999px;
  background: rgba(120, 120, 120, 0.18);
  overflow: hidden;
  position: relative;
  vertical-align: middle;
}

.health-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  transition: width 120ms linear;
}

.health-text {
  margin-left: 6px;
  font-size: 0.74rem;
  color: inherit;
  opacity: 0.82;
  vertical-align: middle;
}

.mono {
  margin: 0;
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 0.75rem;
  background: var(--mono-bg);
  color: var(--mono-ink);
  border-radius: 8px;
  padding: 8px;
  overflow: auto;
  width: -webkit-fill-available;
  height: -webkit-fill-available;
  min-height: 0;
  flex: 1 1 auto;
  resize: none;
  max-height: calc(100vh - var(--mono-vh-offset));
}

@media (max-width: 1100px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .stats {
    min-width: 0;
    grid-template-columns: repeat(6, minmax(80px, 1fr));
  }

  .main {
    grid-template-columns: 1fr;
  }

  .games {
    min-height: 200px;
  }

  .content {
    grid-template-columns: 1fr;
  }

  .board-wrap {
    min-height: 360px;
  }

  .turn-badge {
    margin-left: 0;
  }

  .controls {
    flex-wrap: wrap;
  }

  .think-grid {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
  }
}

@media (max-width: 700px) {
  .think-grid {
    grid-template-columns: 1fr;
  }
}