/* ==========================================================================
   Wells Family Maths — styles (built on /_shared/css/site.css tokens)
   ========================================================================== */
:root {
  --m-radius: 18px;
  --m-accent: var(--accent);
  --ok: #57d38c;
  --no: #ff6b6b;
  --gold: #ffcf5c;
}

#app { max-width: 1080px; margin: 0 auto; padding: 24px 16px 80px; }
#boot { text-align: center; color: var(--muted); padding: 80px 0; font-size: 15px; }

.screen { animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes pop { 0% { transform: scale(.8); } 60% { transform: scale(1.08); } 100% { transform: scale(1); } }

/* per-child theme accents */
.theme-dino   { --m-accent: #7bdcb5; }
.theme-space  { --m-accent: #5fb0ff; }
.theme-aurora { --m-accent: #c58bff; }
.theme-neon   { --m-accent: #ff6bcb; }

/* ---- buttons ---------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 18px; font-size: 15px; font-weight: 600;
  cursor: pointer; transition: transform .1s ease, background .15s, border-color .15s, box-shadow .15s;
  font-family: inherit;
}
.btn:hover { transform: translateY(-1px); border-color: #3a4256; }
.btn:active { transform: translateY(0) scale(.98); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn.accent { background: var(--m-accent); color: #0b0e13; border-color: transparent; box-shadow: 0 4px 16px -6px var(--m-accent); }
.btn.accent:hover { filter: brightness(1.06); }
.btn.ghost { background: transparent; }
.btn.small { padding: 8px 12px; font-size: 13px; border-radius: 10px; }
.btn.big { padding: 15px 24px; font-size: 17px; width: 100%; margin-top: 12px; }
.btn.danger { color: #ffb0b0; border-color: #5a2b2b; }
.btn.danger:hover { background: #3a1e1e; }

.back { display: inline-block; background: none; border: none; color: var(--muted); font-size: 14px; cursor: pointer; margin-bottom: 14px; padding: 4px 0; font-family: inherit; }
.back::before { content: "← "; }
.back:hover { color: var(--text); }
.sub { color: var(--muted); font-size: 15px; margin: 4px 0 20px; }
.dash-h { font-size: 15px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 28px 0 14px; }
.mt { margin-top: 28px; }

/* ---- lock screen ------------------------------------------------------ */
.lock { text-align: center; padding-top: 30px; }
.brand h1 { font-size: 34px; margin: 0 0 6px; }
.brand h1 span { font-size: 30px; }
.profile-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; max-width: 780px; margin: 28px auto; }
.profile-tile {
  background: var(--panel); border: 2px solid var(--border); border-radius: var(--m-radius);
  padding: 22px 14px; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 6px;
  transition: transform .12s, border-color .12s, background .12s; font-family: inherit; color: var(--text);
}
.profile-tile:hover { transform: translateY(-3px); border-color: var(--pc, var(--accent)); background: var(--panel-2); box-shadow: 0 10px 30px -12px var(--pc, #000); }
.pt-emoji { font-size: 46px; }
.pt-name { font-size: 18px; font-weight: 700; }
.pt-year { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.profile-tile.parent { border-style: dashed; }
.store-status { color: var(--muted); font-size: 13px; margin-top: 10px; }

/* ---- PIN pad ---------------------------------------------------------- */
.pin-overlay { position: fixed; inset: 0; background: rgba(6,8,12,.78); backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center; z-index: 50; animation: fade .2s; }
.pin-box { background: var(--panel); border: 1px solid var(--border); border-radius: 20px; padding: 26px; width: min(340px, 92vw); text-align: center; box-shadow: var(--shadow); }
.pin-box.shake { animation: shake .4s; }
@keyframes shake { 0%,100%{transform:translateX(0)} 20%,60%{transform:translateX(-8px)} 40%,80%{transform:translateX(8px)} }
.pin-title { font-size: 20px; font-weight: 700; }
.pin-sub { color: var(--muted); font-size: 13px; margin: 4px 0 16px; }
.pin-dots { display: flex; gap: 14px; justify-content: center; margin-bottom: 20px; }
.pin-dots .dot { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--border); }
.pin-dots .dot.on { background: var(--accent); border-color: var(--accent); }
.pin-pad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.pin-key { aspect-ratio: 1.4; background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; font-size: 22px; font-weight: 600; color: var(--text); cursor: pointer; font-family: inherit; }
.pin-key:hover { background: #262c3a; }
.pin-key.ok { background: var(--ok); color: #082; border: none; }
.pin-key.del { font-size: 18px; }

/* ---- HUD -------------------------------------------------------------- */
.hud { display: flex; align-items: center; gap: 14px; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 12px 16px; margin-bottom: 18px; flex-wrap: wrap; }
.hud-id { display: flex; align-items: center; gap: 10px; }
.hud-emoji { font-size: 34px; }
.hud-name { font-weight: 700; font-size: 17px; }
.hud-rank { font-size: 12px; color: var(--muted); }
.hud-xp { flex: 1; min-width: 140px; }
.xpbar { height: 12px; background: var(--panel-2); border-radius: 999px; overflow: hidden; border: 1px solid var(--border); }
.xpbar span { display: block; height: 100%; background: linear-gradient(90deg, var(--m-accent), var(--gold)); transition: width .5s ease; }
.hud-xp-txt { font-size: 12px; color: var(--muted); margin-top: 3px; text-align: right; }
.hud-coins { font-size: 16px; }

/* ---- dashboard -------------------------------------------------------- */
.dash-strip { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.chip { background: var(--panel); border: 1px solid var(--border); border-radius: 999px; padding: 8px 14px; font-size: 14px; }
.chip b { color: var(--m-accent); }
.dash-actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin-bottom: 6px; }

.world-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.world-card { display: flex; gap: 12px; text-align: left; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 16px; cursor: pointer; transition: transform .12s, border-color .12s; font-family: inherit; color: var(--text); }
.world-card:hover { transform: translateY(-2px); border-color: var(--m-accent); }
.world-card.stretch { border-color: #4a3a2a; background: linear-gradient(180deg, var(--panel), #1c1710); }
.wc-emoji { font-size: 34px; }
.wc-body { flex: 1; }
.wc-name { font-weight: 700; font-size: 16px; }
.wc-desc { font-size: 13px; color: var(--muted); margin: 3px 0 8px; }
.mini-badge { font-size: 10px; background: var(--gold); color: #402; padding: 1px 6px; border-radius: 999px; vertical-align: middle; }
.mastery-bar { height: 7px; background: var(--panel-2); border-radius: 999px; overflow: hidden; }
.mastery-bar span { display: block; height: 100%; background: var(--m-accent); }
.wc-mastery { font-size: 11px; color: var(--muted); margin-top: 4px; text-transform: uppercase; letter-spacing: .05em; }

/* ---- world / skills --------------------------------------------------- */
.world-title { font-size: 26px; margin: 0; }
.skill-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; margin-bottom: 10px; flex-wrap: wrap; }
.skill-name { font-weight: 600; font-size: 16px; }
.skill-meta { font-size: 12px; color: var(--muted); margin-top: 3px; }
.skill-actions { display: flex; gap: 8px; }

/* ---- play ------------------------------------------------------------- */
.play-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.play-top .back { margin: 0; }
.play-title { font-weight: 700; font-size: 15px; color: var(--muted); }
.play-count { font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.session-bar { height: 6px; background: var(--panel-2); border-radius: 999px; overflow: hidden; margin-bottom: 18px; }
.session-bar span { display: block; height: 100%; background: var(--m-accent); transition: width .3s; }

.q-card { background: var(--panel); border: 1px solid var(--border); border-radius: 20px; padding: 26px; box-shadow: var(--shadow); }
.q-card.stretch { border-color: var(--gold); }
.q-card.flash-ok { animation: flashOk .5s; }
.q-card.flash-no { animation: flashNo .5s; }
@keyframes flashOk { 0% { box-shadow: 0 0 0 0 rgba(87,211,140,.5); } 100% { box-shadow: 0 0 0 12px rgba(87,211,140,0); } }
@keyframes flashNo { 0% { box-shadow: 0 0 0 0 rgba(255,107,107,.5); } 100% { box-shadow: 0 0 0 12px rgba(255,107,107,0); } }
.stretch-flag { color: var(--gold); font-weight: 700; font-size: 13px; margin-bottom: 10px; }
.q-text { font-size: 24px; line-height: 1.4; font-weight: 600; margin-bottom: 8px; }
.q-text .frac { display: inline-flex; flex-direction: column; text-align: center; vertical-align: middle; line-height: 1; font-size: .7em; margin: 0 2px; }
.q-text .frac sup { border-bottom: 2px solid currentColor; padding: 0 3px 2px; }
.q-text .frac sub { padding: 2px 3px 0; }
.big-emoji { font-size: 40px; letter-spacing: 4px; line-height: 1.5; margin: 14px 0; word-break: break-word; }
.speak-btn { background: none; border: 1px dashed var(--border); color: var(--muted); border-radius: 10px; padding: 6px 12px; font-size: 13px; cursor: pointer; margin-bottom: 14px; font-family: inherit; }

.answer-wrap { margin-top: 18px; }
.opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; }
.opts.tf { grid-template-columns: 1fr 1fr; max-width: 360px; }
.opt { background: var(--panel-2); border: 2px solid var(--border); border-radius: 14px; padding: 18px; font-size: 20px; font-weight: 600; cursor: pointer; color: var(--text); font-family: inherit; transition: transform .1s, border-color .1s, background .1s; }
.opt:hover:not(:disabled) { transform: translateY(-2px); border-color: var(--m-accent); }
.opt:disabled { cursor: default; }
.opt.correct { background: rgba(87,211,140,.16); border-color: var(--ok); color: #b8f5d2; animation: pop .3s; }
.opt.wrong { background: rgba(255,107,107,.14); border-color: var(--no); color: #ffc2c2; }
.input-row { display: flex; align-items: center; gap: 10px; }
.answer-input { flex: 1; background: var(--panel-2); border: 2px solid var(--border); border-radius: 14px; padding: 16px 18px; font-size: 22px; color: var(--text); font-family: inherit; min-width: 0; }
.answer-input:focus { outline: none; border-color: var(--m-accent); }
.unit { font-size: 18px; color: var(--muted); font-weight: 600; }
.check { margin-top: 12px; width: 100%; }
.q-tools { margin-top: 14px; }

/* sketchpad (scratch working — not saved) */
.sketchpad-box { margin-top: 14px; }
.sp-toggle { }
.sketchpad { display: none; margin-top: 10px; }
.sketchpad.open { display: block; }
.sp-bar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; }
.sp-swatch { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--border); cursor: pointer; padding: 0; }
.sp-swatch.on { border-color: var(--m-accent); box-shadow: 0 0 0 2px var(--m-accent); }
.sp-tool { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 5px 10px; cursor: pointer; font-size: 13px; color: var(--text); font-family: inherit; }
.sp-tool.on { border-color: var(--m-accent); color: var(--m-accent); }
.sp-canvas { width: 100%; height: 240px; background: #fff; border-radius: 14px; border: 1px solid var(--border); touch-action: none; cursor: crosshair; display: block; }

/* highlight the coin stats in the parent dashboard */
.ac-stats .ac-coin b { color: var(--gold); }
.hint { background: rgba(255,207,92,.1); border: 1px solid #4a3f22; border-radius: 10px; padding: 10px 14px; font-size: 14px; color: #ffe6a8; margin-top: 8px; }

.feedback { margin-top: 16px; }
.verdict { font-size: 18px; font-weight: 700; padding: 12px 16px; border-radius: 12px; animation: pop .3s; }
.verdict.ok { background: rgba(87,211,140,.14); color: #b8f5d2; }
.verdict.no { background: rgba(255,107,107,.12); color: #ffc2c2; }
.explain { margin-top: 12px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; font-size: 15px; line-height: 1.5; color: var(--text); }
.explain .frac { font-size: .8em; }
.think { margin-top: 14px; background: rgba(120,110,255,.08); border: 1px solid #33305a; border-radius: 12px; padding: 14px; }
.think-q { font-weight: 600; margin-bottom: 8px; }
.think-input { width: 100%; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 10px; color: var(--text); font-family: inherit; resize: vertical; margin-bottom: 8px; }
.next { margin-top: 16px; width: 100%; }

/* ---- summary ---------------------------------------------------------- */
.summary { text-align: center; padding-top: 20px; }
.summary-emoji { font-size: 72px; animation: pop .5s; }
.summary h1 { font-size: 30px; margin: 6px 0 18px; }
.summary-stats { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 22px; }
.sstat { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 16px 22px; min-width: 100px; }
.sstat b { display: block; font-size: 30px; color: var(--m-accent); }
.sstat span { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.new-badges { background: var(--panel); border: 1px solid var(--gold); border-radius: 16px; padding: 18px; margin: 0 auto 22px; max-width: 460px; }
.nb-title { font-weight: 700; color: var(--gold); margin-bottom: 12px; }
.nb { display: flex; align-items: center; gap: 12px; text-align: left; padding: 8px 0; }
.nb-e { font-size: 36px; }
.summary-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---- badges ----------------------------------------------------------- */
.badge-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.badge { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 18px 14px; text-align: center; }
.badge.locked { opacity: .5; filter: grayscale(.6); }
.badge.earned { border-color: var(--gold); box-shadow: 0 6px 20px -12px var(--gold); }
.badge-e { font-size: 42px; }
.badge-n { font-weight: 700; font-size: 14px; margin-top: 6px; }
.badge-d { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ---- rewards ---------------------------------------------------------- */
.reward-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; }
.reward-card { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 18px; text-align: center; }
.reward-card.afford { border-color: var(--m-accent); }
.rc-emoji { font-size: 40px; }
.rc-name { font-weight: 600; margin: 8px 0 4px; font-size: 15px; }
.rc-cost { color: var(--gold); font-weight: 700; margin-bottom: 10px; }
.rc-pending { font-size: 13px; color: var(--gold); }
.req-list { display: flex; flex-direction: column; gap: 8px; }
.req { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; font-size: 14px; }
.req.pending { color: var(--gold); }

/* ---- upload / generate ------------------------------------------------ */
.notice { background: rgba(95,176,255,.08); border: 1px solid #2a3a4a; border-radius: 12px; padding: 14px 16px; font-size: 14px; margin-bottom: 14px; line-height: 1.5; }
.notice code { background: var(--panel-2); padding: 1px 6px; border-radius: 5px; }
.topic-input { width: 100%; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 14px; font-size: 16px; color: var(--text); font-family: inherit; resize: vertical; }
.file-row { margin: 12px 0; }
.file-input { display: none; }
.photo-preview { max-width: 220px; border-radius: 12px; border: 1px solid var(--border); margin-bottom: 8px; }
.gen-out { margin-top: 18px; }
.loading { color: var(--muted); text-align: center; padding: 30px; animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .5; } }
.gen-card { background: var(--panel); border: 1px solid var(--m-accent); border-radius: 18px; padding: 22px; }
.gen-card h2 { margin: 0 0 12px; }
.gen-para { line-height: 1.6; color: var(--text); margin: 0 0 12px; }

/* ---- admin ------------------------------------------------------------ */
.admin-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.admin-top h1 { font-size: 26px; margin: 0; }
.approve-box { background: var(--panel); border: 1px solid var(--gold); border-radius: 16px; padding: 18px; margin-bottom: 20px; }
.approve-box h2 { margin: 0 0 12px; font-size: 17px; }
.approve-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 0; border-top: 1px solid var(--border); flex-wrap: wrap; }
.approve-row > div:last-child { display: flex; gap: 8px; }

.admin-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.admin-card { background: var(--panel); border: 1px solid var(--border); border-top: 3px solid var(--pc, var(--accent)); border-radius: 16px; padding: 18px; }
.ac-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.ac-emoji { font-size: 34px; }
.ac-name { font-weight: 700; }
.ac-rank { font-size: 12px; color: var(--muted); }
.ac-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 14px; }
.ac-stats > div { background: var(--panel-2); border-radius: 10px; padding: 8px; text-align: center; }
.ac-stats b { display: block; font-size: 18px; }
.ac-stats span { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.ac-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; }
.heat { display: flex; gap: 5px; flex-wrap: wrap; }
.heat-cell { width: 30px; height: 30px; border-radius: 7px; display: flex; align-items: center; justify-content: center; font-size: 15px; background: var(--panel-2); border: 1px solid var(--border); opacity: .35; }
.heat-cell.lvl1 { opacity: .55; } .heat-cell.lvl2 { opacity: .75; border-color: var(--m-accent); }
.heat-cell.lvl3 { opacity: 1; border-color: var(--ok); box-shadow: inset 0 0 0 1px var(--ok); }
.heat-cell.lvl4 { opacity: 1; border-color: var(--gold); box-shadow: inset 0 0 0 2px var(--gold); }
.ac-last { font-size: 12px; color: var(--muted); margin: 12px 0; }
.ac-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.admin-settings { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 18px; margin-top: 24px; }
.admin-settings h2 { font-size: 17px; margin: 0 0 12px; }
.reward-admin-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.ra-row { display: flex; align-items: center; gap: 8px; }
.ra-emoji { font-size: 22px; }
.ra-name { flex: 1; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; color: var(--text); font-family: inherit; }
.ra-cost { width: 80px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 8px; color: var(--text); font-family: inherit; }

/* ---- toast ------------------------------------------------------------ */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translate(-50%, 20px); background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px 20px; font-size: 14px; z-index: 60; opacity: 0; transition: all .3s; box-shadow: var(--shadow); }
.toast.show { transform: translate(-50%, 0); opacity: 1; }
.toast.err { border-color: var(--no); }
.toast.ok { border-color: var(--ok); }

@media (max-width: 560px) {
  .q-text { font-size: 21px; }
  .hud { gap: 10px; }
  .hud-coins { order: 3; }
  .dash-actions { grid-template-columns: 1fr; }
}