:root {
  --bg: #0b0f0e;
  --panel: #121815;
  --panel2: #0e1411;
  --line: #24302a;
  --text: #e8eeea;
  --muted: #93a69c;
  --accent: #22c55e;
  --accent-dark: #15803d;
  --warn: #fbbf24;
  --danger: #f87171;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: calc(6px + env(safe-area-inset-top)) 10px 6px;
}

.topbar h1 {
  font-size: 15px;
  margin: 0;
  font-weight: 650;
  letter-spacing: 0.3px;
}

.actions {
  display: flex;
  gap: 6px;
}

main {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

#boardWrap {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px 6px;
}

canvas#board {
  touch-action: none;
  border-radius: 10px;
  background: var(--panel2);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
  display: block;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 6px 10px 2px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 10px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.btn svg {
  width: 14px;
  height: 14px;
  flex: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.35;
  cursor: default;
  transform: none;
}

.btn.primary {
  background: var(--accent-dark);
  border-color: #1fa04f;
}

.btn.danger {
  color: var(--danger);
}

.btn.dirty {
  border-color: var(--warn);
  color: var(--warn);
}

.btn.recording {
  border-color: var(--danger);
  color: var(--danger);
}

.btn .hide {
  display: none;
}

select.btn {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 8px;
}

.sizeCtl {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sizeCtl input[type="range"] {
  width: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0;
  border: none;
  transition: width 0.2s ease, opacity 0.2s ease;
  accent-color: var(--accent);
  margin: 0;
}

.sizeCtl.open input[type="range"] {
  width: 110px;
  opacity: 1;
}

.frameLabel {
  font-size: 12px;
  color: var(--muted);
  min-width: 46px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

#strip {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 6px 10px calc(8px + env(safe-area-inset-bottom));
  scrollbar-width: thin;
}

.chip {
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: var(--panel);
  border: 1.5px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  font: inherit;
  font-size: 10px;
  cursor: pointer;
}

.chip canvas {
  width: 72px;
  height: 36px;
  border-radius: 4px;
  display: block;
}

.chip canvas.vert {
  width: 30px;
  height: 60px;
}

.chip.cur {
  border-color: var(--accent);
  color: #fff;
}

#toast {
  position: fixed;
  left: 50%;
  bottom: calc(96px + env(safe-area-inset-bottom));
  transform: translateX(-50%) translateY(8px);
  background: rgba(8, 12, 10, 0.92);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 9px 14px;
  border-radius: 10px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  max-width: 86vw;
  text-align: center;
  z-index: 10;
}

#toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (min-width: 700px) {
  .controls {
    flex-direction: row;
    justify-content: center;
    align-items: center;
  }

  .row {
    flex-wrap: nowrap;
  }
}