:root {
  --ink: #5b3a29;
  --cream: #fff6e6;
  --paper: #fffbf3;
  --peach: #ffe1b8;
  --coral: #ff7b54;
  --sun: #ffd166;
  --mint: #7fd1ae;
  --shadow: 4px 4px 0 var(--ink);
  --radius: 18px;
  font-family: "Fredoka", "Nunito", "Comic Sans MS", system-ui, sans-serif;
  color: var(--ink);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 18%, #ffe9c7 0 60px, transparent 61px),
    radial-gradient(circle at 88% 82%, #ffdcc2 0 90px, transparent 91px),
    var(--cream);
  display: flex;
  justify-content: center;
}

.app {
  width: min(1100px, 100%);
  padding: 24px 20px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.title h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-shadow: 3px 3px 0 var(--sun);
}
.subtitle { margin: 4px 0 0; font-size: 1.05rem; opacity: 0.8; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 22px;
  background: var(--peach);
  border: 3px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 12px 16px;
}

.btn {
  font: inherit;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  border: 3px solid var(--ink);
  border-radius: 999px;
  padding: 8px 18px;
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform 0.08s, box-shadow 0.08s, background 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink); }
.btn:active { transform: translate(3px, 3px); box-shadow: 0 0 0 var(--ink); }

.btn-play { background: var(--mint); min-width: 118px; justify-content: center; }
.btn-play[aria-pressed="true"] { background: var(--coral); color: #fff; }
.btn-play .icon { font-size: 0.95rem; }
.btn-soft { background: var(--paper); margin-left: auto; }

.group { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.group-label { font-size: 0.95rem; }

.seg {
  display: flex;
  border: 3px solid var(--ink);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: 3px 3px 0 var(--ink);
  background: var(--paper);
}
.seg button {
  font: inherit;
  font-size: 1.2rem;
  width: 44px;
  height: 36px;
  border: none;
  border-left: 3px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s;
}
.seg button:first-child { border-left: none; }
.seg button:hover { background: #fff0d6; }
.seg button.active { background: var(--sun); }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 140px;
  height: 14px;
  border: 3px solid var(--ink);
  border-radius: 999px;
  background: var(--paper);
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--coral);
  border: 3px solid var(--ink);
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--coral);
  border: 3px solid var(--ink);
}

.board {
  position: relative;
  border: 3px solid var(--ink);
  border-radius: 24px;
  box-shadow: 6px 6px 0 var(--ink);
  background: var(--paper);
  overflow: hidden;
  height: clamp(320px, calc(100vh - 290px), 560px);
}
#canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: crosshair;
}

.readout {
  position: absolute;
  top: 0;
  left: 0;
  white-space: nowrap;
  background: var(--sun);
  border: 3px solid var(--ink);
  border-radius: 14px;
  box-shadow: 3px 3px 0 var(--ink);
  padding: 6px 12px;
  font-weight: 600;
  pointer-events: none;
  transition: opacity 0.15s;
}
.readout.hidden { opacity: 0; }
.readout small { opacity: 0.75; font-weight: 400; }

.hints {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.hints span {
  background: var(--paper);
  border: 2px dashed var(--ink);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 0.95rem;
}