/* Math Buddy — shared styles. Layout: games on the left, buddy on the right; stacks on phones. */
:root{
  --bg:#f3f8ff; --card:#ffffff; --fg:#1f2a44; --muted:#6b7694;
  --sun:#ffc43d; --coral:#ff6b6b; --sky:#4cc9f0; --leaf:#5bd47a; --grape:#9b7bff;
  --accent:#ff8a3d; --accent-fg:#1f2a44; --ring:#1f2a44; --shadow:rgba(31,42,68,.14);
  --display:'Fredoka','Nunito',system-ui,sans-serif; --body:'Nunito',system-ui,sans-serif;
}
@media (prefers-color-scheme: dark){ :root{
  --bg:#141a2b; --card:#1f2740; --fg:#f2f5ff; --muted:#aab3cc;
  --sun:#ffcf5c; --coral:#ff7b7b; --sky:#62d3f5; --leaf:#6fe08c; --grape:#ad94ff;
  --accent:#ff9a55; --accent-fg:#141a2b; --ring:#f2f5ff; --shadow:rgba(0,0,0,.35); color-scheme:dark } }

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:18px;-webkit-tap-highlight-color:transparent;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));
  padding-top:max(12px,env(safe-area-inset-top,0px));padding-bottom:max(16px,env(safe-area-inset-bottom,0px))}
h1,h2,h3,h4{font-family:var(--display);margin:0;text-wrap:balance}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--ring);outline-offset:3px}
input,textarea{font:inherit;color:var(--fg);background:var(--bg);border:2px solid transparent;border-radius:14px;padding:10px 14px}
input:focus,textarea:focus{border-color:var(--accent)}
[hidden]{display:none!important}
a{color:inherit}

.top{display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:1100px;margin:0 auto 14px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand h1{font-size:26px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand .av{width:42px;height:42px;flex:none}
.topbtns{display:flex;gap:8px;flex:none}
.pill{font-weight:800;font-size:16px;padding:12px 18px;border-radius:999px;background:var(--card);color:var(--fg);box-shadow:0 3px 0 var(--shadow);display:inline-flex;align-items:center;gap:8px}
.pill.go{background:var(--accent);color:var(--accent-fg);font-size:18px;padding:14px 26px}
.pill.quiet{font-size:14px;color:var(--muted);box-shadow:none;background:transparent}
.pill:disabled{opacity:.5}

/* two-pane playground */
.play{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:18px;max-width:1100px;margin:0 auto;align-items:start}
@media (max-width:820px){ .play{grid-template-columns:1fr} .buddy{order:-1} .brand h1{font-size:20px} }

/* home */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.tile{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:18px 16px 16px;border-radius:22px;color:#1f2a44;
  min-height:132px;text-align:left;box-shadow:0 6px 0 rgba(31,42,68,.18);transition:transform .08s ease}
.tile:active{transform:translateY(4px);box-shadow:0 2px 0 rgba(31,42,68,.18)}
.tile svg{width:40px;height:40px}
.tile b{font-family:var(--display);font-size:21px;font-weight:600;line-height:1.1}
.tile span{font-size:14px;font-weight:700;opacity:.8}
.tile .badge{position:absolute;top:10px;right:10px;font-size:12px;font-weight:800;background:rgba(255,255,255,.8);color:#1f2a44;padding:4px 9px;border-radius:999px;opacity:1}
.t-sun{background:var(--sun)} .t-coral{background:var(--coral)} .t-sky{background:var(--sky)}
.t-leaf{background:var(--leaf)} .t-grape{background:var(--grape)} .t-accent{background:var(--accent)}

/* game card */
.card{background:var(--card);border-radius:26px;padding:22px 18px;box-shadow:0 8px 24px var(--shadow);display:flex;flex-direction:column;gap:18px}
.q{font-family:var(--display);font-size:26px;font-weight:600;line-height:1.2;text-align:center}
.q .big{font-size:44px;display:block;margin-top:6px;letter-spacing:.04em;font-variant-numeric:tabular-nums}
.stage{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;min-height:60px;align-content:center}
.stage svg{width:46px;height:46px}
.stage .op{font-family:var(--display);font-size:40px;font-weight:700;align-self:center;padding:0 6px}
.line{display:flex;justify-content:space-between;align-items:flex-end;padding:0 4px;position:relative;height:70px;width:100%}
.line::before{content:"";position:absolute;left:0;right:0;bottom:22px;height:6px;border-radius:3px;background:var(--muted);opacity:.35}
.line .tick{display:flex;flex-direction:column;align-items:center;gap:6px;font-weight:800;font-size:16px;color:var(--muted);width:28px}
.line .tick i{width:16px;height:16px;border-radius:50%;background:var(--muted);opacity:.6}
.line .tick.me i{background:var(--coral);opacity:1;width:24px;height:24px;margin-bottom:-4px}
.line .tick.me{color:var(--fg)}
.answers{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.ans{font-family:var(--display);font-size:32px;font-weight:600;min-height:72px;border-radius:20px;background:var(--bg);
  border:3px solid transparent;box-shadow:0 5px 0 var(--shadow);transition:transform .08s ease;color:var(--fg);
  display:flex;align-items:center;justify-content:center;gap:8px;font-variant-numeric:tabular-nums}
.ans svg{width:52px;height:52px}
.ans:active{transform:translateY(3px);box-shadow:0 2px 0 var(--shadow)}
.ans.yes{background:var(--leaf);border-color:var(--leaf);color:#141a2b}
.ans.nope{opacity:.45;box-shadow:none;transform:translateY(5px)}
.ans.shake{animation:shake .4s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.feedback{min-height:30px;text-align:center;font-weight:800;font-size:19px;color:var(--muted)}
.feedback.good{color:var(--fg)}
.row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.hint{display:none;justify-content:center;gap:6px;flex-wrap:wrap}
.hint.on{display:flex}
.hint i{width:14px;height:14px;border-radius:50%;background:var(--sky);display:block}
.hint i.b{background:var(--coral)}

/* sticker jar */
.jar{background:var(--card);border-radius:22px;padding:14px 16px;display:flex;flex-direction:column;gap:10px;box-shadow:0 2px 0 var(--shadow);margin-top:16px}
.jar h3{font-size:18px;font-weight:600;display:flex;justify-content:space-between;align-items:center}
.jar h3 span{font-family:var(--body);font-size:14px;font-weight:700;color:var(--muted)}
.stickers{display:flex;flex-wrap:wrap;gap:4px;min-height:26px}
.stickers svg{width:22px;height:22px}
.stickers .empty{font-size:15px;color:var(--muted);font-weight:700}
.pop{animation:pop .5s cubic-bezier(.2,1.6,.4,1)}
@keyframes pop{from{transform:scale(0)}to{transform:scale(1)}}

/* buddy panel */
.buddy{background:var(--card);border-radius:26px;padding:16px;box-shadow:0 8px 24px var(--shadow);display:flex;flex-direction:column;gap:12px;position:sticky;top:12px}
.buddy .face{width:120px;height:120px;margin:0 auto;transition:transform .3s}
.buddy .face.talking{animation:bob .6s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.bubble{background:var(--bg);border-radius:18px;padding:12px 14px;font-weight:700;font-size:17px;line-height:1.35;min-height:52px;position:relative}
.bubble::before{content:"";position:absolute;top:-10px;left:50%;margin-left:-8px;border:8px solid transparent;border-bottom-color:var(--bg);border-top:0}
.bubble.thinking{color:var(--muted)}
.bubble.thinking::after{content:"…";animation:dots 1s steps(3) infinite}
@keyframes dots{to{content:""}}
.talk{display:flex;gap:8px;align-items:center}
.mic{flex:1;font-family:var(--display);font-size:18px;font-weight:600;padding:16px;border-radius:999px;background:var(--accent);color:var(--accent-fg);box-shadow:0 5px 0 var(--shadow);user-select:none;-webkit-user-select:none;touch-action:none}
.mic.live{background:var(--coral);animation:pulse 1s infinite}
.mic.live-start:not(.live){background:var(--accent)}
@keyframes pulse{50%{box-shadow:0 0 0 10px rgba(255,107,107,.25)}}
.icobtn{width:48px;height:48px;border-radius:50%;background:var(--bg);display:inline-flex;align-items:center;justify-content:center;font-size:20px;flex:none}
.icobtn.off{opacity:.45;text-decoration:line-through}
.typebox{display:flex;gap:8px}
.typebox input{flex:1;min-width:0}
.buddy .small{font-size:13px;color:var(--muted);font-weight:700;text-align:center}
@media (max-width:820px){ .buddy{position:static;flex-direction:row;flex-wrap:wrap;align-items:center} .buddy .face{width:72px;height:72px;margin:0}
  .bubble{flex:1;min-width:0} .bubble::before{display:none} .talk{width:100%} }

/* who's playing / pick a buddy */
.choose{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:18px;text-align:center}
.choose h2{font-size:30px;font-weight:700}
.choose p{color:var(--muted);font-weight:700;margin:0}
.kids{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.kid{background:var(--card);border-radius:22px;padding:18px 12px;display:flex;flex-direction:column;align-items:center;gap:8px;box-shadow:0 6px 0 var(--shadow);font-family:var(--display);font-size:22px;font-weight:600}
.kid svg,.kid .ph{width:80px;height:80px}
.kid .ph{border-radius:50%;background:var(--sun);display:flex;align-items:center;justify-content:center;font-size:36px;color:#1f2a44}
.chars{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.char{background:var(--card);border-radius:22px;padding:18px;display:flex;flex-direction:column;align-items:center;gap:8px;box-shadow:0 6px 0 var(--shadow);text-align:center}
.char svg{width:120px;height:120px}
.char b{font-family:var(--display);font-size:24px;font-weight:600}
.char span{font-size:14px;color:var(--muted);font-weight:700}
.char.on{outline:4px solid var(--accent)}
.note{background:var(--card);border-radius:18px;padding:14px 16px;color:var(--muted);font-weight:700;font-size:15px;line-height:1.4}

@media (prefers-reduced-motion: reduce){ *{animation:none!important;transition:none!important} }

/* mode bar + coach screen */
.coachart{width:120px;height:120px;margin:0 auto}
.chips{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.chips button{font-family:var(--display);font-size:22px;font-weight:600;min-height:64px;border-radius:20px;background:var(--bg);box-shadow:0 5px 0 var(--shadow);color:var(--fg)}
.chips button:active{transform:translateY(3px);box-shadow:0 2px 0 var(--shadow)}

/* sticker album */
.albumbar{display:flex;align-items:center;justify-content:space-between;gap:8px}
.albumbar b{font-family:var(--display);font-size:18px;font-weight:600}
.albumbar .icobtn{width:40px;height:40px;font-size:16px}
.albumbar .icobtn:disabled{opacity:.3}
.scene{position:relative;width:100%;aspect-ratio:400/220;max-width:100%;border-radius:18px;overflow:hidden;box-shadow:inset 0 0 0 3px rgba(31,42,68,.08)}
.scene>svg:first-child{position:absolute;inset:0;width:100%;height:100%}
.scene .stk,.scene .slot{position:absolute;width:11%;aspect-ratio:1;transform:translate(-50%,-50%)}
.scene .stk svg{width:100%;height:100%;filter:drop-shadow(0 2px 2px rgba(31,42,68,.25))}
.scene .slot{border:2px dashed rgba(31,42,68,.35);border-radius:50%;background:rgba(255,255,255,.35)}
.jar .small{font-size:13px;color:var(--muted);font-weight:700;text-align:center}

/* shop, teach, surprise */
.shopitem{display:inline-flex;flex-direction:column;align-items:center;gap:4px;padding:8px 12px;border-radius:16px;background:var(--bg);box-shadow:0 3px 0 var(--shadow)}
.shopitem svg{width:46px;height:46px}
.shopitem b{font-family:var(--display);font-size:20px;display:inline-flex;align-items:center;gap:4px}
.shopitem b svg{width:20px;height:20px}
.purse{display:flex;flex-wrap:wrap;gap:3px;justify-content:center;width:100%;margin-top:6px}
.purse svg{width:22px;height:22px}
.pickrow{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}
.pickrow button{width:56px;height:56px;border-radius:16px;background:var(--bg);box-shadow:0 3px 0 var(--shadow);border:3px solid transparent}
.pickrow button.on{border-color:var(--accent)}
.pickrow svg{width:40px;height:40px}
.stepper{display:flex;align-items:center;justify-content:center;gap:18px}
.stepper button{width:64px;height:64px;border-radius:50%;background:var(--accent);color:var(--accent-fg);font-family:var(--display);font-size:34px;font-weight:600;box-shadow:0 4px 0 var(--shadow)}
.stepper b{font-family:var(--display);font-size:48px;min-width:70px;text-align:center;font-variant-numeric:tabular-nums}
.tile.t-gift{background:linear-gradient(135deg,var(--coral),var(--sun))}
.tile.t-gift svg{animation:wiggle 1.6s ease-in-out infinite}
@keyframes wiggle{0%,100%{transform:rotate(-6deg)}50%{transform:rotate(6deg)}}
.scene .stk.special svg{filter:drop-shadow(0 0 6px #ffc43d)}
.seg{display:flex;gap:6px;background:var(--bg);padding:4px;border-radius:999px}
.seg button{flex:1;padding:10px;border-radius:999px;font-weight:800;font-size:16px;color:var(--muted)}
.seg button.on{background:var(--accent);color:var(--accent-fg)}
.buildbar{font-size:14px;color:var(--muted);font-weight:700;text-align:center}
.readbox{background:var(--bg);border-radius:20px;padding:14px 18px;text-align:center;box-shadow:inset 0 0 0 3px var(--sun)}
.readtext{font-family:var(--display);font-size:34px;font-weight:600;line-height:1.3;text-wrap:balance}
.singrow{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.singrow span{font-family:var(--display);font-size:34px;font-weight:700;min-width:64px;padding:8px 12px;border-radius:16px;background:var(--bg);box-shadow:0 4px 0 var(--shadow);font-variant-numeric:tabular-nums}
.singrow span.hot{background:var(--sun);color:#141a2b;animation:bounce .5s}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.readtext .w{display:inline-block;margin:0 2px}
.readtext .hard{background:var(--sun);color:#141a2b;border-radius:12px;padding:0 10px;box-shadow:0 3px 0 rgba(31,42,68,.18);cursor:pointer;animation:glow 1.6s ease-in-out infinite}
.readtext .hard:active{transform:translateY(2px);box-shadow:0 1px 0 rgba(31,42,68,.18)}
@keyframes glow{0%,100%{box-shadow:0 3px 0 rgba(31,42,68,.18)}50%{box-shadow:0 3px 0 rgba(31,42,68,.18),0 0 14px var(--sun)}}
/* story passport, notebook, retelling */
.passport{display:flex;gap:14px;align-items:center;background:var(--bg);border-radius:20px;padding:12px 16px;box-shadow:inset 0 0 0 3px var(--grape)}
.pp-stamp{flex:none;width:92px;height:92px;border-radius:50%;border:4px dashed var(--grape);display:flex;align-items:center;justify-content:center;text-align:center;font-family:var(--display);font-weight:700;font-size:14px;line-height:1.1;padding:6px;transform:rotate(-8deg);color:var(--grape)}
.pp-body{min-width:0}
.pp-body b{font-family:var(--display);font-size:22px;font-weight:600;display:block}
.notebook{background:#fff8e6;border-radius:20px;padding:14px 16px;display:flex;flex-direction:column;gap:8px;box-shadow:inset 0 0 0 3px var(--sun);background-image:repeating-linear-gradient(transparent,transparent 30px,rgba(31,42,68,.08) 31px)}
@media (prefers-color-scheme: dark){ :root .notebook{background-color:#2a2a3d} }
.nb-prompt{font-family:var(--display);font-size:22px;font-weight:600}
.notebook textarea{font-size:22px;line-height:31px;background:transparent;border:0;resize:vertical;font-family:var(--display)}
.retell{background:var(--bg);border-radius:20px;padding:16px;text-align:center;box-shadow:inset 0 0 0 3px var(--leaf)}
.storybar{height:8px;border-radius:99px;background:rgba(107,118,148,.18);overflow:hidden}
.storybar i{display:block;height:100%;width:0;background:var(--grape);border-radius:99px;transition:width 1s linear}
.breakcard{text-align:center;background:var(--bg);border-radius:20px;padding:18px;display:flex;flex-direction:column;gap:8px;align-items:center;box-shadow:inset 0 0 0 3px var(--sun)}
.bigclock{font-family:var(--display);font-size:56px;font-weight:700;letter-spacing:2px}
/* the club: one card per coach */
.coaches{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (min-width:900px){.coaches{grid-template-columns:repeat(4,minmax(0,1fr))}}
.coach-card{background:var(--card);border-radius:26px;padding:20px 14px 18px;display:flex;flex-direction:column;align-items:center;gap:6px;box-shadow:0 8px 0 var(--shadow);text-align:center;border-top:10px solid var(--c)}
.coach-card:active{transform:translateY(4px);box-shadow:0 4px 0 var(--shadow)}
.coach-card svg{width:120px;height:120px}
.coach-card b{font-family:var(--display);font-size:24px;font-weight:600;line-height:1.1}
.coach-card i{font-style:normal;font-weight:800;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--c);filter:brightness(.8)}
@media (prefers-color-scheme: dark){ :root .coach-card i{filter:none} }
.coach-card span{font-size:14px;color:var(--muted);font-weight:700;line-height:1.3}
/* the kitchen */
.dish{display:flex;align-items:center;gap:14px}
.dish-emoji{font-size:64px;line-height:1;flex:none}
.ing{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:10px}
.ing div{background:var(--bg);border-radius:18px;padding:10px 6px;text-align:center;font-weight:800;font-size:14px;line-height:1.2}
.ing div span{display:block;font-size:34px;line-height:1.1;margin-bottom:4px}
.ing div small{display:block;color:var(--muted);font-size:12px}
.steps{list-style:none;display:flex;flex-direction:column;gap:8px;padding:0;margin:0;counter-reset:st}
.steps li{counter-increment:st;display:flex;gap:12px;align-items:flex-start;padding:10px 14px;border-radius:18px;background:var(--bg);font-weight:700;color:var(--muted);line-height:1.35;transition:all .25s}
.steps li::before{content:counter(st);flex:none;width:30px;height:30px;border-radius:50%;background:var(--card);display:flex;align-items:center;justify-content:center;font-family:var(--display);font-weight:700;box-shadow:0 2px 0 var(--shadow)}
.steps li.now{background:var(--sun);color:#141a2b;font-family:var(--display);font-size:22px;font-weight:600;padding:16px;box-shadow:0 6px 0 rgba(31,42,68,.18)}
.steps li.now::before{background:#fff;color:#1f2a44}
.steps li.done{opacity:.55;text-decoration:line-through}
.steps #cookctl{justify-content:center;margin:2px 0 6px}
.steps li .adult{display:inline-block;margin-left:6px;font-size:12px;font-family:var(--body);font-weight:800;background:var(--coral);color:#141a2b;border-radius:99px;padding:2px 8px;text-decoration:none}
.timer{text-align:center;background:var(--bg);border-radius:20px;padding:10px;box-shadow:inset 0 0 0 3px var(--leaf)}
/* secret code */
.dots{display:flex;gap:14px;justify-content:center;margin:6px 0 10px}
.dots i{width:22px;height:22px;border-radius:50%;background:rgba(107,118,148,.25);transition:all .15s}
.dots i.on{background:var(--accent);transform:scale(1.15)}
.dots.shake{animation:shake .4s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-10px)}75%{transform:translateX(10px)}}
.keypad{display:grid;grid-template-columns:repeat(3,84px);gap:12px;justify-content:center}
.keypad button{height:72px;border-radius:22px;background:var(--card);font-family:var(--display);font-size:30px;font-weight:600;box-shadow:0 5px 0 var(--shadow)}
.keypad button:active{transform:translateY(3px);box-shadow:0 2px 0 var(--shadow)}
.keypad button.quiet{color:var(--muted);font-size:24px}
/* the week board on the first screen */
.board{background:var(--card);border-radius:26px;padding:16px;box-shadow:0 8px 0 var(--shadow);display:flex;flex-direction:column;gap:12px;text-align:left}
.board-top{display:flex;align-items:center;justify-content:space-between}
.board-top b{font-family:var(--display);font-size:24px;font-weight:600}
.days{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.days button{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 2px;border-radius:16px;background:var(--bg);font-weight:800;font-size:12px;color:var(--muted)}
.days button b{font-family:var(--display);font-size:20px;font-weight:600;color:var(--fg)}
.days button .dots{display:flex;gap:3px;margin:0;min-height:8px}
.days button .dots i{width:8px;height:8px;border-radius:50%;background:var(--c,var(--muted))}
.days button.on{background:var(--sun);color:#1f2a44}
.days button.on b{color:#1f2a44}
.days button.today{box-shadow:inset 0 0 0 3px var(--accent)}
.daylist{display:flex;flex-direction:column;gap:10px}
.slot{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:20px;background:var(--bg);border-left:8px solid var(--c);text-align:left}
.slot.app{cursor:pointer}
.slot.app:active{transform:translateY(2px)}
.slot .pic{flex:none;width:56px;height:56px;border-radius:50%;overflow:hidden;background:var(--card);display:flex;align-items:center;justify-content:center;box-shadow:0 3px 0 var(--shadow)}
.slot .pic img,.slot .pic svg{width:100%;height:100%;object-fit:cover}
.slot .pic span{font-size:28px}
.slot .when{flex:none;font-family:var(--display);font-size:20px;font-weight:600;min-width:56px}
.slot .what{min-width:0;flex:1}
.slot .what b{display:block;font-family:var(--display);font-size:19px;font-weight:600;line-height:1.15}
.slot .what span{font-size:13px;color:var(--muted);font-weight:800}
.slot .mark{flex:none;font-size:26px}
.slot.done{opacity:.8}
.slot.now{box-shadow:0 0 0 3px var(--accent)}
.empty{color:var(--muted);font-weight:800;text-align:center;padding:10px}
html[dir="rtl"] .slot{border-left:0;border-right:8px solid var(--c)}
.feel{display:flex;gap:8px;margin-top:6px}
.feel button{font-size:30px;line-height:1;padding:6px 10px;border-radius:16px;background:var(--card);box-shadow:0 3px 0 var(--shadow)}
.feel button.on{background:var(--sun);transform:scale(1.1)}