/* Snake page styles — pairs with ../../shared.css */

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.page-head h1 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 700;
  font-size: clamp(28px, 4.4vw, 40px);
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.05;
}
.page-head .sub {
  color: var(--ink-soft);
  margin: 6px 0 0;
  font-size: 14px;
  min-height: 1.4em;
}
.head-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.play {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.board-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.scoreboard {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.stat {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px 16px;
  min-width: 92px;
  text-align: center;
  box-shadow: var(--shadow);
}
.stat-label {
  font: 600 11px 'Inter', sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.stat-value {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 700;
  font-size: 24px;
  color: var(--ink);
  line-height: 1.1;
  margin-top: 2px;
  font-variant-numeric: tabular-nums;
  transition: transform 220ms ease-out, color 220ms ease-out;
}
@keyframes snake-score-bump {
  0%   { transform: scale(1); color: var(--ink); }
  35%  { transform: scale(1.18); color: var(--accent); }
  100% { transform: scale(1); color: var(--ink); }
}
.stat-value.is-bump { animation: snake-score-bump 380ms cubic-bezier(0.34, 1.56, 0.64, 1); }

@media (prefers-reduced-motion: reduce) {
  .stat-value.is-bump { animation: none; }
}

.canvas-wrap {
  position: relative;
  width: 100%;
  max-width: 560px;
  aspect-ratio: 1 / 1;
}
#board {
  display: block;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(180deg, #fbf6ea 0%, #f4ecdc 100%);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  touch-action: none;
  outline: none;
}
#board:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(31, 58, 95, 0.18), var(--shadow);
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(28, 42, 58, 0.42);
  border-radius: 12px;
  padding: 16px;
  z-index: 5;
}
.overlay[hidden] { display: none; }
.overlay-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 26px;
  text-align: center;
  box-shadow: var(--shadow-lift);
  max-width: 320px;
}
.overlay-card h2 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 700;
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--ink);
}
.overlay-card p {
  color: var(--ink-soft);
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.5;
}
.overlay-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.settings {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  padding-top: 4px;
}
.field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 600 13px 'Inter', sans-serif;
  color: var(--ink-soft);
}
.field select {
  appearance: none;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 10px;
  padding: 8px 30px 8px 12px;
  font: 600 13px 'Inter', sans-serif;
  cursor: pointer;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%),
    linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);
  background-position:
    calc(100% - 16px) 50%,
    calc(100% - 11px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}
.field select:hover { background-color: var(--accent-soft); }
.field select:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(31, 58, 95, 0.18);
}
.check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 600 13px 'Inter', sans-serif;
  color: var(--ink-soft);
  cursor: pointer;
  user-select: none;
}
.check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.aside-info { margin-top: 22px; }
.aside-info details {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
}
.aside-info summary {
  cursor: pointer;
  font: 700 14px 'Inter', sans-serif;
  color: var(--ink);
}
.aside-info .help-body {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
}
.aside-info .help-body p { margin: 0 0 8px; }
.aside-info .help-body ul { margin: 0; padding-left: 18px; }
.aside-info .help-body li { margin: 4px 0; }

@media (max-width: 520px) {
  .play { padding: 12px; }
  .stat { padding: 6px 12px; min-width: 78px; }
  .stat-value { font-size: 20px; }
}