/* ---------- snake race layout (5 simultaneous panels) ---------- */
.snake-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 34px 5% 56px
}

.snake-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 22px
}

.snake-head h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  letter-spacing: -1.6px;
  margin: 8px 0 10px
}

.snake-head p.muted {
  max-width: 56ch;
  margin: 0;
  font-size: 14px
}

.snake-controls {
  display: flex;
  gap: 8px;
  align-items: center
}

.snake-controls button,
.snake-controls select {
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 11px 16px;
  cursor: pointer;
  transition: .15s
}

.snake-controls button:hover {
  border-color: #c7d3da
}

.snake-controls .primary {
  background: var(--teal-d);
  color: #fff;
  border-color: var(--teal-d)
}

.snake-controls .primary:hover {
  background: var(--teal)
}

.snake-controls .ctl {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 0 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted)
}

.snake-controls .ctl input {
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  width: 52px;
  border: 0;
  background: transparent;
  padding: 11px 0;
  text-align: center;
  font-variant-numeric: tabular-nums
}

.snake-controls .ctl input:focus {
  outline: none
}

.snake-controls .ctl input::-webkit-outer-spin-button,
.snake-controls .ctl input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0
}

.snake-controls .ctl input[type=number] {
  -moz-appearance: textfield
}

.snake-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 18px;
  margin-bottom: 18px;
  font-size: 13px
}

.snake-status .clock {
  font-variant-numeric: tabular-nums;
  font-size: 13px
}

.snake-status .clock b {
  font-size: 16px
}

/* grid of 5 simultaneous race panels */
.race-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-bottom: 22px
}

.race-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: box-shadow .2s
}

.race-panel.leading {
  box-shadow: 0 0 0 2px var(--c), 0 14px 30px #172f3e1c
}

.race-panel .rp-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 13px;
  border-bottom: 1px solid var(--border)
}

.race-panel .rp-head .sw {
  width: 11px;
  height: 11px;
  border-radius: 3px;
  flex: none
}

.race-panel .rp-head .nm {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -.2px
}

.race-panel .rp-head .ms {
  margin-left: auto;
  font-size: 10px;
  color: var(--muted);
  font-variant-numeric: tabular-nums
}

.race-panel .rp-canvas {
  position: relative;
  background: radial-gradient(ellipse at center, #16232b, #0d161c)
}

.race-panel .rp-canvas canvas {
  display: block;
  width: 100%;
  height: auto
}

.race-panel .rp-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 13px;
  border-top: 1px solid var(--border)
}

.race-panel .rp-foot .ap {
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums
}

.race-panel .rp-foot .ap b {
  font-size: 16px
}

.race-panel .rp-foot .mps {
  font-size: 10px;
  color: var(--muted);
  font-variant-numeric: tabular-nums
}

.race-panel .rp-badge {
  position: absolute;
  top: 9px;
  right: 9px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .5px;
  background: #0d161cd9;
  color: #fff;
  border-radius: 999px;
  padding: 4px 9px;
  opacity: 0;
  transition: opacity .2s
}

.race-panel.leading .rp-badge {
  opacity: 1
}

.race-panel .rp-badge.win {
  background: var(--c);
  color: #0d161c
}

.race-panel.dead {
  opacity: .55
}

.race-panel.dead .rp-head .nm::after {
  content: " · crashed";
  color: #c0563f;
  font-size: 10px
}

/* leaderboard strip */
.board-strip {
  padding: 18px 20px
}

.board-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px
}

.board-top h3 {
  font-size: 14px;
  font-weight: 600;
  margin: 0
}

.board-top .muted {
  font-size: 10px
}

.lb-row {
  display: grid;
  grid-template-columns: 14px 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid var(--border)
}

.lb-row:last-child {
  border-bottom: 0
}

.lb-row .sw {
  width: 12px;
  height: 12px;
  border-radius: 3px
}

.lb-row .nm {
  font-size: 13px;
  font-weight: 600
}

.lb-row .nm small {
  display: block;
  font-size: 10px;
  color: var(--muted);
  font-weight: 500
}

.lb-row .bar {
  height: 6px;
  background: #eef2f5;
  border-radius: 6px;
  overflow: hidden;
  min-width: 120px
}

.lb-row .bar i {
  display: block;
  height: 100%;
  border-radius: 6px
}

.lb-row .ap {
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 34px;
  text-align: right
}

.lb-row.dead {
  opacity: .5
}

.lb-row.dead .nm::after {
  content: " · crashed";
  color: #c0563f;
  font-size: 10px
}

.board-foot {
  font-size: 11px;
  margin: 14px 0 0;
  line-height: 1.55
}

/* decision stream (one row per decision, newest first) */
.stream {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 280px;
  overflow-y: auto
}

.stream::-webkit-scrollbar {
  width: 6px
}

.stream::-webkit-scrollbar-thumb {
  background: #d3dde4;
  border-radius: 3px
}

.decision {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
  background: #fafbfd;
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 8px 12px;
  animation: slidein .18s ease
}

@keyframes slidein {
  from {
    opacity: 0;
    transform: translateY(-4px)
  }

  to {
    opacity: 1;
    transform: none
  }
}

.decision .d-left {
  display: flex;
  align-items: center;
  gap: 9px
}

.decision .d-sw {
  width: 9px;
  height: 9px;
  border-radius: 3px;
  flex: none
}

.decision .d-name {
  font-weight: 700;
  letter-spacing: -.2px
}

.decision .d-action {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .5px;
  color: var(--muted);
  text-transform: uppercase
}

.decision .d-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--muted)
}

.decision .d-conf {
  font-weight: 700;
  color: var(--ink)
}

.decision .d-lat {
  min-width: 52px;
  text-align: right
}

/* how-the-race-works explanation */
.explain {
  margin-top: 22px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 26px;
  box-shadow: var(--shadow)
}

.explain h2 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -.4px;
  margin: 0 0 18px
}

.explain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px
}

.explain .ex h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--teal-d);
  margin: 0 0 6px
}

.explain .ex p {
  font-size: 12.5px;
  color: var(--muted);
  margin: 0;
  line-height: 1.6
}

@media(max-width:1100px) {
  .race-grid {
    grid-template-columns: repeat(3, 1fr)
  }

  .explain-grid {
    grid-template-columns: repeat(2, 1fr)
  }
}

@media(max-width:720px) {
  .race-grid {
    grid-template-columns: repeat(2, 1fr)
  }

  .lb-row .bar {
    display: none
  }
}

@media(max-width:460px) {
  .race-grid {
    grid-template-columns: 1fr
  }

  .explain-grid {
    grid-template-columns: 1fr
  }
}