:root {
  --cream: #f4f0e8;
  --cream-card: #faf7f1;
  --board: #fffcf7;
  --ink: #2a2a28;
  --muted: #5a5854;
  --mute2: #8a8680;
  --line: #d8d2c8;
  --line-soft: #e8e2d8;
  --shadow: 0 8px 28px rgba(40, 35, 28, 0.08), 0 1px 3px rgba(40, 35, 28, 0.05);
  --radius: 14px;
  --saffron: #d4a017;
  --jade: #2a9b8f;
  --carmine: #c43b5a;
  --indigo: #3d3a8c;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  font-family: Inter, system-ui, -apple-system, sans-serif;
  background: var(--cream);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

a { color: inherit; text-decoration: none; }

/* —— Header —— */
.site-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.5rem 0.7rem;
  flex-shrink: 0;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.title-block h1 {
  font-family: "Libre Baskerville", Georgia, serif;
  font-weight: 400;
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.tagline {
  margin: 0.2rem 0 0;
  font-family: "Libre Baskerville", Georgia, serif;
  font-size: 0.88rem;
  color: var(--muted);
  font-style: italic;
}

.site-header nav {
  display: flex;
  gap: 1.1rem;
  font-size: 0.88rem;
  color: var(--muted);
  padding-top: 0.35rem;
}

.site-header nav a:hover { color: var(--ink); }
.site-header nav a.active {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 0.35em;
  text-decoration-thickness: 1px;
}

/* —— App stage —— */
.app {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.25rem 0.35rem;
  gap: 0.55rem;
}

.stage {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.board-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius);
  background: var(--board);
  box-shadow: var(--shadow);
  border: 1px solid var(--line-soft);
  overflow: hidden;
  touch-action: none;
  cursor: none;
}

#board {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.cue {
  position: absolute;
  left: 50%;
  bottom: 1.15rem;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.9rem;
  background: rgba(255, 252, 247, 0.92);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.84rem;
  color: var(--muted);
  pointer-events: none;
  box-shadow: 0 2px 10px rgba(40, 35, 28, 0.06);
  transition: opacity 0.35s ease, transform 0.35s ease;
  white-space: nowrap;
  max-width: calc(100% - 2rem);
}

.cue.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(6px);
  pointer-events: none;
}

.cue-icon { flex-shrink: 0; opacity: 0.7; }

/* —— Toolbar —— */
.toolbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.55rem 0.85rem;
  background: #fffcf7;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(40, 35, 28, 0.04);
  min-height: 52px;
}

.pigment-dots {
  display: flex;
  gap: 0.45rem;
  align-items: center;
}

.pigment-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  padding: 0;
  cursor: pointer;
  background: var(--c);
  box-shadow:
    inset 0 -3px 6px rgba(0, 0, 0, 0.18),
    inset 0 2px 3px rgba(255, 255, 255, 0.45),
    0 1px 2px rgba(40, 35, 28, 0.12);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.pigment-dot:hover { transform: scale(1.08); }
.pigment-dot:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.pigment-dot[aria-selected="true"] {
  border-color: var(--ink);
  box-shadow:
    inset 0 -3px 6px rgba(0, 0, 0, 0.18),
    inset 0 2px 3px rgba(255, 255, 255, 0.45),
    0 0 0 2px #fffcf7,
    0 0 0 3.5px var(--ink);
}

.tool-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.65rem;
  border-radius: 8px;
  background: var(--cream);
  border: 1px solid var(--line);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink);
}

.hint {
  font-size: 0.8rem;
  color: var(--mute2);
  flex: 1;
  min-width: 8rem;
}

.sound-block { margin-left: auto; }

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
}

.toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-track {
  width: 36px;
  height: 20px;
  border-radius: 999px;
  background: #c9c3b8;
  position: relative;
  transition: background 0.18s ease;
  flex-shrink: 0;
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform 0.18s ease;
}

.toggle input:checked + .toggle-track {
  background: var(--ink);
}
.toggle input:checked + .toggle-track .toggle-thumb {
  transform: translateX(16px);
}
.toggle input:focus-visible + .toggle-track {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.toggle-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.toggle-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink);
}
.toggle-help {
  font-size: 0.68rem;
  color: var(--mute2);
}

.actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease;
  min-height: 36px;
}
.btn:hover { background: var(--cream); border-color: #c9bfae; }
.btn:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--ink);
  color: #faf7f1;
  border-color: var(--ink);
}
.btn-primary:hover {
  background: #3a3835;
  border-color: #3a3835;
  color: #faf7f1;
}

/* —— Footer —— */
.site-footer {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 1.5rem 0.75rem;
  color: var(--mute2);
  font-size: 0.8rem;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  border-top: 1px solid transparent;
}
.site-footer .cart {
  display: inline-flex;
  opacity: 0.65;
}

/* —— Responsive —— */
@media (max-width: 820px) {
  body { overflow: auto; }
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.75rem 1rem 0.5rem;
  }
  .site-header nav { flex-wrap: wrap; gap: 0.75rem; padding-top: 0; }
  .app { padding: 0 0.75rem 0.25rem; }
  .hint { display: none; }
  .toggle-help { display: none; }
  .toolbar {
    gap: 0.5rem;
    padding: 0.5rem 0.65rem;
  }
  .sound-block { margin-left: 0; }
  .site-footer { padding: 0.5rem 1rem 0.7rem; }
}

@media (max-width: 520px) {
  .tagline { font-size: 0.8rem; }
  .tool-chip span { display: none; }
  .btn { padding: 0.4rem 0.55rem; }
  .btn svg + * { /* keep icon */ }
}

@media (prefers-reduced-motion: reduce) {
  .cue, .pigment-dot, .toggle-track, .toggle-thumb, .btn {
    transition: none;
  }
}

/* —— Clear scoop (empty tip) —— */
#btn-clear-scoop:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
#btn-clear-scoop.is-armed {
  border-color: #c9bfae;
  background: #fffef9;
}
#btn-clear-scoop.is-armed:hover {
  background: var(--cream);
}