@font-face {
  font-family: 'Figtree';
  src: url(../fonts/figtree.woff2) format('woff2');
  font-weight: 300 900;
  font-display: swap;
}

:root {
  --surface: rgba(255, 255, 255, 0.9);
  --solid: #ffffff;
  --sheet: #f7f8fa;
  --line: rgba(22, 32, 42, 0.12);
  --text: #1c2329;
  --muted: #5b6670;
  --accent: #2160d4;
  --accent-ink: #ffffff;
  --soft: rgba(33, 96, 212, 0.12);
  --warn: #b3261e;
  --shadow: 0 1px 2px rgba(20, 30, 40, 0.08), 0 4px 16px rgba(20, 30, 40, 0.12);
  --ring: 0 0 0 1px rgba(20, 30, 40, 0.08);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --surface: rgba(31, 37, 42, 0.9);
    --solid: #1f252a;
    --sheet: #1a1f23;
    --line: rgba(255, 255, 255, 0.12);
    --text: #eef1f3;
    --muted: #a5afb7;
    --accent: #84b3ff;
    --accent-ink: #0d1b33;
    --soft: rgba(132, 179, 255, 0.16);
    --warn: #ff8a80;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 18px rgba(0, 0, 0, 0.35);
    --ring: 0 0 0 1px rgba(255, 255, 255, 0.07);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}
body {
  font: 15px/1.4 Figtree, system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--text);
  background: #ffffff;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
  position: fixed;
  inset: 0;
}
body[data-bg="paper"] { background: #fbf5e4; }
body[data-bg="slate"] { background: #2a3236; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
.noscript { padding: 24px; }

/* ---------- the board ---------- */
.board {
  position: fixed;
  inset: 0;
  touch-action: none;
  cursor: crosshair;
}
.board canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
body:not([data-bg="slate"])[data-tool="marker"] .live { mix-blend-mode: multiply; }
body[data-tool="eraser"] .board { cursor: none; }
body.panning .board { cursor: grab; }

.hint {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(360px, calc(100vw - 48px));
  margin: 0;
  text-align: center;
  color: rgba(40, 50, 60, 0.55);
  font-size: 16px;
  line-height: 1.5;
  pointer-events: none;
}
.hint b { display: block; font-size: 22px; font-weight: 600; color: rgba(40, 50, 60, 0.62); margin-bottom: 4px; }
body[data-bg="slate"] .hint, body[data-bg="slate"] .hint b { color: rgba(255, 255, 255, 0.55); }

/* ---------- floating bits ---------- */
.pill {
  background: var(--surface);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow: var(--shadow), var(--ring);
  border: 0;
  border-radius: 14px;
}
.top {
  position: fixed;
  top: calc(var(--safe-t) + 10px);
  left: calc(var(--safe-l) + 10px);
  right: calc(var(--safe-r) + 10px);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  pointer-events: none;
  z-index: 10;
}
.top > * { pointer-events: auto; }
.boards-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 14px 0 12px;
  min-width: 0;
  flex: 0 1 auto;
  font-weight: 600;
}
.boards-btn svg { flex: none; color: var(--muted); }
.boards-btn span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 260px; }
.corner { display: flex; gap: 8px; margin-left: auto; flex: none; }
.icon-btn {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 0;
  background: transparent;
  border-radius: 12px;
}
.pill.icon-btn { background: var(--surface); }
.icon-btn:hover { background: var(--soft); }

.tools {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  margin: 0 auto;
  flex: none;
}
.tools .group { display: flex; align-items: center; gap: 2px; }
.sep { width: 1px; align-self: stretch; margin: 6px 5px; background: var(--line); }
.tool {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
}
.tool:hover { background: var(--soft); }
.tool[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); }
.tool:disabled { opacity: 0.32; cursor: default; background: transparent; }
.swatch, .size {
  display: grid;
  place-items: center;
  width: 32px;
  height: 40px;
  padding: 0;
  border: 0;
  background: transparent;
  border-radius: 10px;
}
.swatch::before {
  content: '';
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--c);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.14), 0 0 0 1px var(--line);
}
.swatch[aria-pressed="true"]::before { box-shadow: 0 0 0 2px var(--solid), 0 0 0 4px var(--accent); }
.size i { width: var(--d); height: var(--d); border-radius: 50%; background: currentColor; opacity: 0.8; }
.size:hover, .swatch:hover { background: var(--soft); }
.size[aria-pressed="true"] { background: var(--soft); }
.size[aria-pressed="true"] i { opacity: 1; color: var(--accent); }
body[data-tool="eraser"] .size i { background: transparent; border: 2px solid currentColor; }
.style i {
  width: var(--d, 14px);
  height: var(--d, 14px);
  border-radius: 50%;
  background: var(--c);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.16), 0 0 0 1px rgba(255, 255, 255, 0.5);
}
.style.erasing i { background: transparent; border: 2px solid currentColor; box-shadow: none; }
.tools.erasing .swatches, .tools.erasing .swatches + .sep { display: none; }

/* Wide screens show colours and sizes in the toolbar; narrow ones put them behind one button. */
.narrow { display: none; }
@media (max-width: 859px) {
  .wide { display: none !important; }
  .narrow { display: grid; }
  span.narrow { display: block; }
  .boards-btn span { max-width: 160px; }
}
.pop {
  position: fixed;
  z-index: 11;
  left: 50%;
  top: calc(var(--safe-t) + 66px);
  transform: translateX(-50%);
  padding: 6px;
  display: grid;
  gap: 4px;
  justify-items: center;
}
.pop .swatches, .pop .sizes { display: flex; gap: 2px; }
.pop .swatch, .pop .size { width: 44px; height: 44px; }
.pop .swatch::before { width: 26px; height: 26px; }

.zoom {
  position: fixed;
  right: calc(var(--safe-r) + 12px);
  bottom: calc(var(--safe-b) + 12px);
  height: 36px;
  padding: 0 12px;
  font-weight: 600;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  z-index: 9;
  opacity: 0.72;
  transition: opacity 0.2s;
}
.zoom.on, .zoom:hover { opacity: 1; }

/* Phones: the tools at the bottom, where a thumb is. */
@media (max-width: 599px) {
  .tools {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    bottom: calc(var(--safe-b) + 12px);
    margin: 0;
  }
  .pop { top: auto; bottom: calc(var(--safe-b) + 70px); }
  .zoom { bottom: auto; top: calc(var(--safe-t) + 66px); right: calc(var(--safe-r) + 10px); }
  .boards-btn span { max-width: calc(100vw - 150px); }
}

.cloud { position: relative; }
.cloud .dot {
  position: absolute;
  right: 11px;
  bottom: 13px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #2e9d5b;
  box-shadow: 0 0 0 2px var(--solid);
}
.cloud[data-s="busy"] .dot { background: #e0a100; }
.cloud[data-s="tap"] .dot, .cloud[data-s="error"] .dot { background: #d93025; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--safe-b) + 20px);
  transform: translate(-50%, 16px);
  max-width: min(440px, calc(100vw - 32px));
  padding: 10px 16px;
  border-radius: 12px;
  background: #1f262b;
  color: #f2f4f5;
  font-size: 14px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 30;
  text-align: center;
}
.toast.on { opacity: 1; transform: translate(-50%, 0); }
@media (max-width: 599px) { .toast { bottom: calc(var(--safe-b) + 76px); } }

/* ---------- sheets ---------- */
.scrim {
  position: fixed;
  inset: 0;
  background: rgba(10, 16, 22, 0.28);
  z-index: 19;
  opacity: 0;
  transition: opacity 0.2s;
}
.scrim.in { opacity: 1; }
.sheet {
  position: fixed;
  top: 0;
  bottom: 0;
  width: min(380px, 92vw);
  z-index: 20;
  background: var(--sheet);
  color: var(--text);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: calc(var(--safe-t) + 12px) 18px calc(var(--safe-b) + 16px);
  box-shadow: var(--shadow);
  transition: transform 0.22s ease;
  -webkit-user-select: text;
  user-select: text;
}
.sheet.left { left: 0; padding-left: calc(var(--safe-l) + 18px); transform: translateX(-104%); }
.sheet.right { right: 0; padding-right: calc(var(--safe-r) + 18px); transform: translateX(104%); }
.sheet.in { transform: none; }
@media (prefers-reduced-motion: reduce) { .sheet, .scrim, .toast { transition: none; } }
.sheet-head { display: flex; align-items: center; justify-content: space-between; margin: 0 -8px 6px 0; }
.sheet h2 { font-size: 17px; margin: 0; }
.sheet section { border-top: 1px solid var(--line); margin-top: 18px; padding-top: 14px; }
.sheet section h2 { margin-bottom: 8px; }
.sheet p { margin: 6px 0; }
.small { font-size: 13.5px; color: var(--muted); }
.warn, .err { color: var(--warn); }
.path { font-weight: 600; }
.sheet a { color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--solid);
  font-weight: 600;
  font-size: 14.5px;
}
.btn svg { width: 20px; height: 20px; flex: none; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn.quiet { background: transparent; }
.btn.armed { background: var(--warn); color: #fff; border-color: transparent; }
.btn:disabled { opacity: 0.5; }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 4px; }
.wide-btn { width: 100%; justify-content: center; margin: 4px 0 12px; }

.field { display: grid; gap: 6px; margin: 12px 0; }
.field > span { font-size: 13px; font-weight: 600; color: var(--muted); }
.field input {
  height: 44px;
  padding: 0 12px;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--solid);
  font-size: 16px;
}
.field input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 40px;
  padding: 0 12px 0 8px;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--solid);
  font-size: 14px;
}
.chip[aria-pressed="true"] { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); background: var(--soft); }
.chip i { width: 22px; height: 22px; border-radius: 6px; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.16), 0 0 0 1px var(--line); }
.pat { background-color: #fff; }
.pat.grid { background-image: linear-gradient(rgba(40, 70, 130, 0.35) 1px, transparent 1px), linear-gradient(90deg, rgba(40, 70, 130, 0.35) 1px, transparent 1px); background-size: 7px 7px; background-position: 3px 3px; }
.pat.lines { background-image: linear-gradient(rgba(40, 70, 130, 0.4) 1px, transparent 1px); background-size: 7px 7px; background-position: 0 3px; }
.pat.dots { background-image: radial-gradient(rgba(40, 60, 100, 0.6) 1px, transparent 1.4px); background-size: 7px 7px; background-position: 0.5px 0.5px; }

.radio { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; cursor: pointer; }
.radio input { margin: 3px 0 0; width: 18px; height: 18px; accent-color: var(--accent); flex: none; }
.radio b { display: block; }
.radio span { font-size: 14px; color: var(--muted); }
.radio span b { color: var(--text); font-size: 15px; }

.help ul { margin: 0; padding-left: 18px; font-size: 14px; color: var(--muted); }
.help li { margin: 6px 0; }
.help b { color: var(--text); font-weight: 600; }

.board-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.board-list li { display: flex; align-items: center; gap: 4px; border-radius: 12px; }
.board-list li.here { background: var(--soft); }
.board-list .open {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px;
  border: 0;
  background: transparent;
  text-align: left;
  border-radius: 12px;
}
.board-list .open:hover { background: var(--soft); }
.thumb { flex: none; width: 88px; height: 62px; border-radius: 8px; overflow: hidden; box-shadow: 0 0 0 1px var(--line); background: #fff; }
.thumb canvas { width: 100%; height: 100%; display: block; }
.what { min-width: 0; display: grid; }
.what b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.what small { color: var(--muted); font-size: 13px; }
.del { color: var(--muted); flex: none; }
.del.armed { width: auto; padding: 0 12px; background: var(--warn); color: #fff; font-weight: 600; font-size: 14px; }

.jd-foot {
  margin: 22px 0 4px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}
.jd-foot a { color: var(--muted); text-decoration: none; }
.jd-foot a:hover, .jd-foot a:focus-visible { text-decoration: underline; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.board:focus-visible { outline: none; }

@media print {
  .top, .tools, .pop, .zoom, .toast, .sheet, .scrim, .hint { display: none !important; }
}