/* Satoshi Snake easter egg — namespaced (ss-*) */

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.ss-trigger {
  margin: 0;
  padding: 0.15rem;
  border: 0;
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  line-height: 0;
  transition: opacity 0.15s ease;
}

.ss-trigger:hover,
.ss-trigger:focus-visible {
  opacity: 0.72;
}

.ss-trigger-glyph {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1;
  transform: rotate(14deg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.ss-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.ss-modal.is-open {
  display: flex;
}

.ss-modal[hidden] {
  display: none !important;
}

body.ss-modal-open {
  overflow: hidden;
}

.ss-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--fg) 35%, transparent);
}

.ss-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 24rem);
  padding: 1.25rem 1.25rem 1rem;
  border-radius: 0.2rem;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
}

.ss-close {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  width: 1.5rem;
  height: 1.5rem;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1;
  cursor: pointer;
}

.ss-close:hover,
.ss-close:focus-visible {
  color: var(--fg);
  opacity: 0.72;
}

.ss-title {
  margin: 0 1.5rem 0.35rem 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.ss-score {
  margin: 0 0 0.85rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.ss-score span {
  color: var(--fg);
}

.ss-canvas-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 0.75rem;
}

#ss-canvas {
  display: block;
  border: 1px solid var(--border);
  border-radius: 0.2rem;
  background: var(--bg);
  touch-action: none;
}

.ss-gameover {
  text-align: center;
  padding: 1.25rem 0.5rem 0.5rem;
}

.ss-gameover[hidden] {
  display: none !important;
}

.ss-gameover-title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.ss-gameover-score {
  margin: 0 0 1rem;
  font-size: 0.88rem;
  color: var(--muted);
  font-weight: 600;
}

.ss-gameover-score span {
  color: var(--fg);
}

.ss-replay {
  font: inherit;
  cursor: pointer;
  border: 0;
  border-radius: 0.25rem;
  padding: 0.4rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--fg);
  color: var(--bg);
}

.ss-replay:hover,
.ss-replay:focus-visible {
  opacity: 0.72;
}

.ss-hint {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
}