/* Fidget Board: soft lavender and warm pastels. No dark green or teal, nothing flashing. */
:root {
  --bg: #f8f6fd;
  --card: #ffffff;
  --ink: #2b2640;
  --ink-2: #5f5874;
  --rule: #e4def3;
  --track: #e8e3f3;
  --accent: #5b44a8;        /* white text on this is 7:1 */
  --accent-ink: #ffffff;
  --accent-soft: #ece6fb;
  --focus: #5b44a8;
  --shadow: 0 1px 2px rgb(43 38 64 / .06), 0 8px 24px rgb(43 38 64 / .07);
  --font: 'Atkinson Hyperlegible', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --dir: 1;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17151f;
    --card: #221f2c;
    --ink: #efeaf9;
    --ink-2: #c3bbd8;
    --rule: #3a3450;
    --track: #3a3450;
    --accent: #c4b5f5;
    --accent-ink: #1d1830;
    --accent-soft: #2e2842;
    --focus: #c4b5f5;
    --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 8px 24px rgb(0 0 0 / .3);
    color-scheme: dark;
  }
}
:root[dir="rtl"] { --dir: -1; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 1.0625rem/1.55 var(--font);
  padding-inline: clamp(16px, 4vw, 40px);
}
a { color: inherit; text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 6px; }
[hidden] { display: none !important; }

.top { max-width: 1080px; margin: 0 auto; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding-block: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.25rem; }
.brand img { border-radius: 9px; }
.home-link { text-decoration: none; font-weight: 700; font-size: .95rem; padding: 8px 14px; border: 1px solid var(--rule); border-radius: 999px; background: var(--card); white-space: nowrap; }

main { max-width: 1080px; margin: 0 auto; display: grid; gap: 16px; padding-bottom: 28px; }
.lead { margin: 4px 0 0; font-size: clamp(1.1rem, 2.4vw, 1.3rem); max-width: 60ch; }
.card { background: var(--card); border: 1px solid var(--rule); border-radius: 20px; padding: clamp(12px, 2.5vw, 22px); box-shadow: var(--shadow); }

.btn {
  font: 700 1rem/1.2 var(--font); color: var(--ink); background: var(--card);
  border: 2px solid var(--rule); border-radius: 12px; padding: 10px 16px; min-height: 48px; cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn.glow { border-color: var(--accent); background: var(--accent-soft); }

/* Toy tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.tabs [role=tab] {
  display: inline-flex; align-items: center; gap: 8px; min-height: 48px; padding: 8px 16px 8px 12px;
  font: 700 1rem var(--font); color: var(--ink-2); background: var(--card);
  border: 2px solid var(--rule); border-radius: 999px; cursor: pointer;
}
.tabs [role=tab]:hover { border-color: var(--accent); color: var(--ink); }
.tabs [role=tab][aria-selected="true"] { color: var(--ink); background: var(--accent-soft); border-color: var(--accent); }
.tab-ico svg { width: 22px; height: 22px; display: block; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }

.toy { display: grid; gap: 14px; }
.toy-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; }
.toy-help { margin: 0; color: var(--ink-2); text-align: center; }
.seg { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 4px; border-radius: 14px; background: var(--accent-soft); }
.seg button {
  font: 700 .98rem var(--font); color: var(--ink-2); background: transparent; border: 0; border-radius: 10px;
  padding: 8px 14px; min-height: 42px; cursor: pointer;
}
.seg button[aria-checked="true"] { background: var(--card); color: var(--ink); box-shadow: 0 1px 3px rgb(0 0 0 / .12); }

/* ---------- Pop-it ---------- */
.pop-stage { display: grid; place-items: center; padding-block: 6px; }
.pop-sheet {
  --cell: min(60px, calc((min(100vw, 1080px) - 76px) / var(--cols)), calc(58vh / var(--rows)));
  display: grid; grid-template-columns: repeat(var(--cols), var(--cell)); grid-auto-rows: var(--cell);
  touch-action: none; user-select: none; -webkit-user-select: none;
  filter: drop-shadow(0 6px 10px rgb(60 40 80 / .14));
}
.pop-cell { display: grid; place-items: center; background: var(--row); }
.pop-cell.empty { background: transparent; }
.bubble {
  width: 80%; aspect-ratio: 1; border: 0; border-radius: 50%; padding: 0; cursor: pointer;
  background: radial-gradient(circle at 34% 30%, rgb(255 255 255 / .8), rgb(255 255 255 / 0) 42%), var(--row);
  box-shadow: 0 3px 0 rgb(80 50 60 / .13), inset 0 -3px 6px rgb(80 50 60 / .12);
  transition: transform .11s ease-out, box-shadow .11s ease-out, background-color .11s;
}
.bubble.down {
  background: radial-gradient(circle at 62% 68%, rgb(255 255 255 / .38), rgb(255 255 255 / 0) 48%), color-mix(in oklab, var(--row) 80%, #6b4a3a);
  box-shadow: inset 0 4px 7px rgb(60 30 30 / .25), inset 0 -1px 2px rgb(255 255 255 / .35);
  transform: scale(.9);
}
.bubble:focus-visible { outline-offset: 1px; }
.pop-sheet.flip-out { animation: flipOut .19s ease-in forwards; }
.pop-sheet.flip-in { animation: flipIn .19s ease-out; }
@keyframes flipOut { to { transform: perspective(900px) rotateY(90deg); } }
@keyframes flipIn { from { transform: perspective(900px) rotateY(-90deg); } }

/* ---------- Spinner ---------- */
.spin-stage {
  position: relative; width: min(420px, 100%); aspect-ratio: 1; margin: 0 auto;
  touch-action: none; user-select: none; -webkit-user-select: none; cursor: grab;
}
.spin-stage:active { cursor: grabbing; }
.spinner { width: 100%; height: 100%; display: block; overflow: visible; }
.spinner:focus-visible { outline: none; }
.spinner:focus-visible .spin-cap { stroke: var(--focus); stroke-width: 5; }
.spin-blur {
  position: absolute; inset: 4%; border-radius: 50%; opacity: 0; pointer-events: none;
  background: radial-gradient(circle, transparent 35%, var(--spin-soft) 42%, var(--spin-soft) 88%, transparent 92%);
}
.spinner, .spin-stage { --spin: #b9a8ef; --spin-soft: rgb(185 168 239 / .45); --spin-dark: #8b76d6; }
.spin-stage:has([data-colour="peach"]) { --spin-soft: rgb(246 185 143 / .45); }
.spin-stage:has([data-colour="sky"]) { --spin-soft: rgb(159 203 238 / .45); }
.spinner[data-colour="peach"] { --spin: #f6b98f; --spin-dark: #d98e5d; }
.spinner[data-colour="sky"] { --spin: #9fcbee; --spin-dark: #6ea5d4; }
.spin-body circle { fill: var(--spin); }
.spin-body { filter: drop-shadow(0 4px 5px rgb(40 30 60 / .22)); }
.spin-weight { fill: #eeeaf5; stroke: var(--spin-dark); stroke-width: 3; }
.spin-mark { fill: var(--spin-dark); }
.spin-cap { fill: #fbfaff; stroke: var(--spin-dark); stroke-width: 3; }
.spin-cap-in { fill: var(--spin); }

/* ---------- Switch board ---------- */
.board, .board-col { display: grid; gap: 22px; align-content: start; }
.part-title { margin: 0 0 10px; font-size: .95rem; color: var(--ink-2); font-weight: 700; }
.board-row { display: flex; flex-wrap: wrap; gap: 28px 44px; align-items: flex-start; }
@media (min-width: 820px) {
  .board { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); column-gap: 48px; }
}

.toggles { display: flex; flex-wrap: wrap; gap: 16px; }
.toggle {
  position: relative; width: 78px; height: 44px; border: 0; border-radius: 999px; padding: 0; cursor: pointer;
  background: var(--track); box-shadow: inset 0 2px 4px rgb(0 0 0 / .12); transition: background-color .15s;
}
.toggle-knob {
  position: absolute; top: 5px; inset-inline-start: 5px; width: 34px; height: 34px; border-radius: 50%;
  background: #fff; box-shadow: 0 2px 4px rgb(0 0 0 / .25); transition: transform .15s ease-out;
}
.toggle[aria-checked="true"] { background: var(--on); }
.toggle[aria-checked="true"] .toggle-knob { transform: translateX(calc(34px * var(--dir))); }

.sliders { display: grid; gap: 14px; max-width: 520px; }
.slider-wrap { position: relative; direction: ltr; }
.slider { -webkit-appearance: none; appearance: none; width: 100%; height: 48px; background: transparent; margin: 0; cursor: pointer; }
.slider::-webkit-slider-runnable-track { height: 14px; border-radius: 999px; background: linear-gradient(to right, var(--fill) var(--pct), var(--track) var(--pct)); }
.slider::-moz-range-track { height: 14px; border-radius: 999px; background: linear-gradient(to right, var(--fill) var(--pct), var(--track) var(--pct)); }
.slider::-webkit-slider-thumb { -webkit-appearance: none; width: 36px; height: 36px; margin-top: -11px; border-radius: 50%; background: #fff; border: 3px solid var(--fill); box-shadow: 0 2px 5px rgb(0 0 0 / .25); }
.slider::-moz-range-thumb { width: 32px; height: 32px; border-radius: 50%; background: #fff; border: 3px solid var(--fill); box-shadow: 0 2px 5px rgb(0 0 0 / .25); }
.notches { position: absolute; inset-inline: 18px; bottom: 0; display: flex; justify-content: space-between; pointer-events: none; }
.notches i { width: 2px; height: 7px; border-radius: 1px; background: var(--ink-2); opacity: .35; }

.big-wrap, .knob-wrap { display: grid; justify-items: center; }
.big-button {
  width: 118px; height: 118px; border-radius: 50%; border: 0; cursor: pointer; padding: 0;
  background: radial-gradient(circle at 38% 32%, #fbd3dc, #f3a5b6 55%, #e98aa0);
  box-shadow: 0 9px 0 #c9788c, 0 14px 22px rgb(80 40 50 / .2);
  transform: translateY(0); transition: transform .06s ease-out, box-shadow .06s ease-out;
  -webkit-tap-highlight-color: transparent; touch-action: manipulation;
}
.big-button span { display: block; width: 62%; height: 62%; margin: auto; border-radius: 50%; border: 3px solid rgb(255 255 255 / .45); }
.big-button.down { transform: translateY(7px); box-shadow: 0 2px 0 #c9788c, 0 4px 8px rgb(80 40 50 / .2); }

.knob { position: relative; width: 132px; height: 132px; border-radius: 50%; touch-action: none; cursor: grab; --turn: 0deg; }
.knob.held { cursor: grabbing; }
.knob:focus-visible { outline-offset: 0; border-radius: 50%; }
.knob-ring { position: absolute; inset: 0; }
.knob-ring i { position: absolute; left: 50%; top: 50%; width: 3px; height: 9px; border-radius: 2px; background: var(--ink-2); opacity: .45; transform: translate(-50%, -50%) rotate(var(--a)) translateY(-60px); }
.knob-dial {
  position: absolute; inset: 16px; border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, #ffffff, #e6e0f3 70%, #d6cdea);
  box-shadow: 0 5px 10px rgb(40 30 60 / .25), inset 0 -3px 5px rgb(40 30 60 / .12);
  transform: rotate(var(--turn)); transition: transform .08s ease-out;
}
.knob-line { position: absolute; left: 50%; top: 9px; width: 6px; height: 28%; margin-left: -3px; border-radius: 3px; background: var(--accent); }

.keys { display: flex; flex-wrap: wrap; gap: 12px; }
.keycap {
  width: 66px; height: 66px; border: 0; border-radius: 14px; cursor: pointer; padding: 6px;
  background: color-mix(in oklab, var(--cap) 80%, #7a6a8a);
  box-shadow: 0 6px 0 rgb(60 40 80 / .18), 0 8px 12px rgb(60 40 80 / .12);
  transition: transform .05s ease-out, box-shadow .05s ease-out; -webkit-tap-highlight-color: transparent; touch-action: manipulation;
}
.keycap span { display: block; width: 100%; height: 100%; border-radius: 10px; background: linear-gradient(#fff 0%, var(--cap) 70%); }
.keycap.down { transform: translateY(5px); box-shadow: 0 1px 0 rgb(60 40 80 / .18), 0 2px 4px rgb(60 40 80 / .12); }

/* ---------- Sand ---------- */
.sand-stage {
  position: relative; height: clamp(320px, 60vh, 600px); border-radius: 18px; overflow: hidden;
  border: 12px solid #d2ae80; box-shadow: inset 0 0 0 2px rgb(120 80 40 / .25), var(--shadow);
}
.sand-stage canvas { display: block; width: 100%; height: 100%; touch-action: none; cursor: crosshair; }
.stone {
  position: absolute; transform: translate(-50%, -50%); border: 0; padding: 0; cursor: grab; touch-action: none;
  border-radius: 50% 48% 52% 46% / 55% 50% 50% 45%;
  background: radial-gradient(circle at 35% 30%, #f4f2ef, #aaa49c 62%, #8b857d);
  box-shadow: 0 7px 10px rgb(90 60 30 / .35), inset 0 -4px 6px rgb(0 0 0 / .12);
  min-width: 34px; min-height: 26px;
  transition: box-shadow .12s;
}
.stone-b { background: radial-gradient(circle at 35% 30%, #eef2f6, #9aa6b3 62%, #7c8794); }
.stone-c { background: radial-gradient(circle at 35% 30%, #f8efe6, #c2a58c 62%, #a3876f); }
.stone.held { cursor: grabbing; box-shadow: 0 14px 18px rgb(90 60 30 / .35), inset 0 -4px 6px rgb(0 0 0 / .12); }

/* ---------- Pond ---------- */
.pond-stage { position: relative; height: clamp(300px, 58vh, 580px); border-radius: 18px; overflow: hidden; box-shadow: inset 0 0 0 2px rgb(60 110 150 / .15); }
.pond-stage canvas { display: block; width: 100%; height: 100%; touch-action: none; cursor: pointer; }
.pond-stage canvas:focus-visible { outline: 3px solid var(--focus); outline-offset: -3px; }

/* ---------- Sound / vibration ---------- */
.prefs { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.pref {
  display: inline-flex; align-items: center; gap: 10px; min-height: 48px; padding: 8px 16px 8px 10px;
  font: 700 1rem var(--font); color: var(--ink); background: var(--card); border: 2px solid var(--rule); border-radius: 999px; cursor: pointer;
}
.pref:hover { border-color: var(--accent); }
.pref-dot { position: relative; width: 44px; height: 26px; border-radius: 999px; background: var(--track); transition: background-color .15s; }
.pref-dot::after { content: ''; position: absolute; top: 3px; inset-inline-start: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgb(0 0 0 / .3); transition: transform .15s; }
.pref[aria-checked="true"] .pref-dot { background: var(--accent); }
.pref[aria-checked="true"] .pref-dot::after { transform: translateX(calc(18px * var(--dir))); }
.pref-note { margin: 0; color: var(--ink-2); font-size: .95rem; flex: 1 1 220px; }

.foot { max-width: 1080px; margin: 0 auto; padding-block: 18px 32px; color: var(--ink-2); font-size: .92rem; border-top: 1px solid var(--rule); }
.foot p { margin: 0 0 8px; }

@media (max-width: 520px) {
  .tabs [role=tab] { padding-inline: 10px 12px; gap: 6px; font-size: .95rem; }
  .board-row { gap: 24px 32px; }
  .toggle { width: 70px; height: 42px; }
  .toggle-knob { width: 32px; height: 32px; }
  .toggle[aria-checked="true"] .toggle-knob { transform: translateX(calc(28px * var(--dir))); }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* English | العربية */
:root[lang="ar"] { --font: 'IBM Plex Sans Arabic', 'Atkinson Hyperlegible', system-ui, -apple-system, 'Segoe UI', sans-serif; }
.fb-lang { order: -1; flex-basis: 100%; display: flex; justify-content: flex-end; align-items: center; gap: 4px; font-size: .95rem; color: var(--rule); }
.fb-lang button { font: inherit; font-weight: 700; color: var(--ink-2); background: none; border: 0; border-radius: 999px; padding: 4px 12px; min-height: 36px; cursor: pointer; }
.fb-lang button[lang="ar"] { font-family: 'IBM Plex Sans Arabic', system-ui, sans-serif; font-size: 1.05rem; }
.fb-lang button[lang="en"] { font-family: 'Atkinson Hyperlegible', system-ui, sans-serif; }
.fb-lang button[aria-pressed="true"] { color: var(--ink); background: color-mix(in oklab, var(--accent) 16%, transparent); }
.fb-lang button:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.fb-suggest { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 16px; margin: 0 0 4px; padding: 12px 16px; border: 1px solid var(--rule); border-radius: 14px; background: var(--card); }
.fb-suggest p { margin: 0; display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: baseline; }
.fb-suggest [lang="ar"] { font-family: 'IBM Plex Sans Arabic', system-ui, sans-serif; font-weight: 700; }
.fb-suggest [lang="en"] { font-family: 'Atkinson Hyperlegible', system-ui, sans-serif; color: var(--ink-2); }
.fb-suggest-acts { display: flex; flex-wrap: wrap; gap: 8px; }
.fb-suggest button { font-weight: 700; padding: 8px 16px; border-radius: 999px; cursor: pointer; min-height: 40px; }
.fb-suggest .fb-ar { background: var(--accent); color: var(--accent-ink); border: 0; font-family: 'IBM Plex Sans Arabic', system-ui, sans-serif; }
.fb-suggest .fb-en { background: transparent; color: var(--ink); border: 2px solid var(--rule); }