:root {
  --bg: #FFF8EC;
  --ink: #2B2440;
  --muted: #6B6480;
  --card: #FFFFFF;
  --accent: #3A86FF;
  --accent-edge: #2563c9;
  --bar: rgba(255, 255, 255, 0.75);
  --scrim: rgba(255, 248, 236, 0.55);
  --shadow: rgba(43, 36, 64, 0.15);
  --btn: #F7F5FB;
  --btn-edge: #E6E1F0;
  --line: #EEE9F5;
  --dot-edge: #FFFFFF;
  --font: ui-rounded, "SF Pro Rounded", "Nunito", system-ui, -apple-system, sans-serif;
  color-scheme: light;
}

/* Dark theme: the phone's setting (until JS picks), or forced from the grown-up menu.
   Canvas colors for each theme are in THEMES in app.js. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #17142A;
    --ink: #F1EEFA;
    --muted: #A7A0BD;
    --card: #24203D;
    --accent: #4A90FF;
    --accent-edge: #2B63C2;
    --bar: rgba(36, 32, 61, 0.8);
    --scrim: rgba(23, 20, 42, 0.6);
    --shadow: rgba(0, 0, 0, 0.45);
    --btn: #2E2949;
    --btn-edge: #3D3760;
    --line: #353052;
    --dot-edge: #3D3760;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #17142A;
  --ink: #F1EEFA;
  --muted: #A7A0BD;
  --card: #24203D;
  --accent: #4A90FF;
  --accent-edge: #2B63C2;
  --bar: rgba(36, 32, 61, 0.8);
  --scrim: rgba(23, 20, 42, 0.6);
  --shadow: rgba(0, 0, 0, 0.45);
  --btn: #2E2949;
  --btn-edge: #3D3760;
  --line: #353052;
  --dot-edge: #3D3760;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  /* No page scroll, zoom, text selection or long-press menus */
  touch-action: none;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

body { position: fixed; inset: 0; }

#stage {
  position: absolute;
  inset: 0;
  display: block;
  touch-action: none;
}

/* Color dots */
#palette {
  position: absolute;
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 14px);
  transform: translateX(-50%);
  display: flex;
  gap: clamp(4px, 1.6vw, 10px);
  padding: 8px 12px;
  background: var(--bar);
  border-radius: 999px;
  box-shadow: 0 4px 18px var(--shadow);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  max-width: calc(100vw - 32px);
}
#palette button {
  width: clamp(28px, 9vw, 40px);
  height: clamp(28px, 9vw, 40px);
  flex: 0 0 auto;
  border-radius: 50%;
  border: 3px solid var(--dot-edge);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  padding: 0;
  transition: transform 0.15s ease;
}
#palette button.on { transform: scale(1.25); box-shadow: 0 0 0 3px var(--ink); }
#palette .rainbow {
  background: conic-gradient(#FF4D4D, #FF9F1C, #FFD60A, #2EC27E, #3A86FF, #9B5DE5, #FF6FB5, #FF4D4D);
}

/* Press-and-hold grown-up button */
#hold {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + 10px);
  right: calc(env(safe-area-inset-right, 0px) + 10px);
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: none;
  opacity: 0.45;
  touch-action: none;
}
#hold.holding { opacity: 1; }
#hold svg { width: 100%; height: 100%; transform: rotate(-90deg); }
#hold .track { fill: var(--bar); stroke: var(--shadow); stroke-width: 3; }
#hold .ring {
  fill: none;
  stroke: var(--accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 120;
  stroke-dashoffset: 120;
}
#hold.holding .ring { stroke-dashoffset: 0; transition: stroke-dashoffset 1.5s linear; }
#hold .lock {
  fill: none;
  stroke: var(--ink);
  stroke-width: 2.2;
  stroke-linejoin: round;
  transform: rotate(90deg);
  transform-origin: 22px 22px;
}

/* Overlays */
.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(env(safe-area-inset-top, 0px) + 16px) 16px calc(env(safe-area-inset-bottom, 0px) + 16px);
  background: var(--scrim);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  overflow-y: auto;
  touch-action: pan-y;
}
.overlay[hidden] { display: none; }

.card {
  width: 100%;
  max-width: 440px;
  margin: auto;
  background: var(--card);
  border-radius: 28px;
  padding: 24px 22px;
  box-shadow: 0 12px 40px var(--shadow);
  text-align: center;
}

.logo { font-size: 44px; margin: 4px 0 18px; letter-spacing: 1px; line-height: 1.1; }
.logo span:nth-child(7n+1) { color: #FF4D4D; }
.logo span:nth-child(7n+2) { color: #FF9F1C; }
.logo span:nth-child(7n+3) { color: #E0B800; }
.logo span:nth-child(7n+4) { color: #2EC27E; }
.logo span:nth-child(7n+5) { color: #3A86FF; }
.logo span:nth-child(7n+6) { color: #9B5DE5; }
.logo span:nth-child(7n+7) { color: #FF6FB5; }

h2 { margin: 0 0 12px; }

button { font-family: inherit; color: inherit; cursor: pointer; }

.big {
  display: block;
  width: 100%;
  font-size: 26px;
  font-weight: 700;
  padding: 18px;
  border: 0;
  border-radius: 20px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 0 var(--accent-edge);
  margin: 8px 0 16px;
}
.big:active { transform: translateY(3px); box-shadow: 0 3px 0 var(--accent-edge); }

.buttons { display: flex; gap: 8px; margin: 14px 0 6px; }
.buttons button {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  padding: 10px 6px;
  border-radius: 14px;
  border: 2px solid var(--btn-edge);
  background: var(--btn);
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 17px;
}
.row input { width: 22px; height: 22px; accent-color: var(--accent); }

details { text-align: left; margin: 12px 0 4px; font-size: 15px; line-height: 1.45; }
summary { font-weight: 700; padding: 8px 0; color: var(--accent); }
ol { padding-left: 20px; margin: 6px 0; }
li { margin-bottom: 8px; }
.tip { font-size: 14px; color: var(--muted); line-height: 1.4; margin: 8px 0; }

/* Auto / Light / Dark switch */
.segmented { display: flex; background: var(--btn); border: 2px solid var(--btn-edge); border-radius: 12px; padding: 2px; }
.segmented button { border: 0; background: none; font-size: 15px; font-weight: 600; padding: 6px 12px; border-radius: 9px; }
.segmented button.on { background: var(--accent); color: #fff; }

.version { margin: 0; font-size: 13px; }

/* Pop counter (top-left). Touches pass through it to the canvas. */
#counter {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + 10px);
  left: calc(env(safe-area-inset-left, 0px) + 12px);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px 6px 8px;
  background: var(--bar);
  border-radius: 999px;
  box-shadow: 0 4px 18px var(--shadow);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  font-size: 26px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}
#counter svg { width: 30px; height: 30px; fill: #FFD60A; stroke: #C9A300; stroke-width: 1.5; stroke-linejoin: round; }
#counter.bump { animation: bump 0.35s ease; }
@keyframes bump {
  0% { transform: scale(1); }
  40% { transform: scale(1.3) rotate(-4deg); }
  100% { transform: scale(1); }
}

/* Voice picker */
.voiceRow { gap: 10px; }
.voiceRow select {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 15px;
  color: inherit;
  padding: 8px 10px;
  border-radius: 12px;
  border: 2px solid var(--btn-edge);
  background: var(--btn);
}
.small {
  flex: 0 0 auto;
  font-size: 15px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 12px;
  border: 2px solid var(--btn-edge);
  background: var(--btn);
}
.voiceHelp { margin: 4px 0 8px; font-size: 14px; }
.voiceHelp summary { font-size: 14px; padding: 6px 0; }
.voiceHelp p { margin: 4px 0; color: var(--muted); }