/* Animal Sound Puzzles — mobile-first, touch-friendly, calm palette. */
:root{
  --primary:#FFB84D; --sky:#4DB8FF; --leaf:#7FD67F; --cream:#FFF8E7;
  --ink:#2F2A24; --ink-soft:#6B5E4E; --rose:#FF8FA3; --sun:#FFE066;
  --accent:#FFB84D;
  --radius:24px;
  --header-space:92px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;}
body{
  font-family:"Baloo 2","Nunito",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:radial-gradient(circle at 50% 0%, #fffdf6, var(--cream));
  color:var(--ink);
  overflow:hidden;
  touch-action:manipulation;
  user-select:none;-webkit-user-select:none;
}

/* Shared game header */
.game-header{position:fixed;top:0;left:0;right:0;z-index:8;display:flex;align-items:center;
  justify-content:space-between;gap:14px;padding:max(14px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) 12px max(16px,env(safe-area-inset-left));
  background:linear-gradient(180deg,rgba(255,248,231,.98),rgba(255,248,231,.84) 78%,rgba(255,248,231,0));
  color:var(--ink)}
.game-brand{display:flex;align-items:center;gap:12px;min-width:0}
.game-mark{width:58px;height:58px;border-radius:18px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(180deg,#fff,#ffe8b8);box-shadow:inset 0 -6px 0 rgba(139,89,25,.12),0 8px 18px rgba(91,66,32,.14);
  font-size:34px;line-height:1}
.game-brand h1{margin:0;font-size:clamp(1.42rem,3.2vw,2.3rem);line-height:1.05;letter-spacing:0}
.game-brand p{margin:4px 0 0;color:var(--ink-soft);font-size:clamp(.94rem,2vw,1.08rem);line-height:1.25}
.game-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex:0 0 auto}
.home-link,.hud-star{min-height:54px;border-radius:18px;background:#fffdf8;border:2px solid rgba(93,67,36,.12);
  box-shadow:inset 0 -4px 0 rgba(0,0,0,.08),0 8px 18px rgba(91,66,32,.12);color:var(--ink)}
.home-link{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 18px;
  font-size:18px;font-weight:800;text-decoration:none;white-space:nowrap}
.hud-star{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 16px;font-size:18px;font-weight:800}
.home-link:active{transform:translateY(2px);box-shadow:inset 0 -2px 0 rgba(0,0,0,.08),0 4px 10px rgba(91,66,32,.12)}

/* Screen container — top-aligned so long content scrolls fully and the
   sticky nav bar stays reachable. Short screens self-center via margin:auto. */
.screen{position:absolute;inset:var(--header-space) 0 0 0;display:flex;flex-direction:column;
  align-items:center;justify-content:flex-start;padding:16px;overflow-y:auto}
.screen.enter{animation:fade .28s ease both}
.reduced-motion .screen.enter{animation:none}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.screen-inner{width:100%;max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:18px}

/* Buttons */
.btn{font-family:inherit;font-weight:800;border:none;cursor:pointer;color:var(--ink);
  background:#fff;border-radius:var(--radius);padding:16px 20px;font-size:20px;line-height:1.15;
  box-shadow:0 5px 0 rgba(0,0,0,.12);transition:transform .08s ease, box-shadow .08s ease;
  min-height:64px;min-width:64px}
.btn:active{transform:translateY(3px);box-shadow:0 2px 0 rgba(0,0,0,.12)}
.btn.huge{font-size:24px;padding:26px;border-radius:30px}
.btn.primary{background:var(--primary)} .btn.sky{background:var(--sky)}
.btn.leaf{background:var(--leaf)} .btn.sun{background:var(--sun)}
.btn.icon{font-size:26px;padding:10px 16px;background:#fff;border-radius:18px}
.btn.small{font-size:16px;padding:10px 16px;box-shadow:0 3px 0 rgba(0,0,0,.1)}
.btn.round{border-radius:999px;font-size:22px}
.btn.disabled{opacity:.5}
.btn.danger{background:#ffe0e0}
.btn small{font-size:13px;opacity:.7;font-weight:700}

/* Splash */
.screen-splash{display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;margin:auto 0}
.mascot{font-size:64px} .mascot.big{font-size:96px;animation:bob 2.2s ease-in-out infinite}
.reduced-motion .mascot.big{animation:none}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.title{font-size:30px;margin:6px 0 0;color:var(--ink)}
.subtitle{font-size:18px;color:var(--ink-soft);margin:0}

/* Home */
.screen-home{display:flex;flex-direction:column;gap:22px;align-items:center;width:100%;max-width:560px;margin:auto 0}
.home-greet{display:flex;align-items:center;gap:12px;font-size:26px;font-weight:800}
.home-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;width:100%}
.home-footer{margin-top:4px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* Top bar — sticky so Home / Back stay reachable while content scrolls */
.topbar{position:sticky;top:-16px;z-index:4;display:flex;align-items:center;
  justify-content:space-between;gap:12px;padding:12px 0;margin:-16px 0 0;
  background:var(--cream);box-shadow:0 10px 12px -10px rgba(47,42,36,.3)}
.screen-title{font-size:22px;margin:0;flex:1;text-align:center;color:var(--accent)}

/* Category grid */
.cat-grid,.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cat-tile{display:flex;flex-direction:column;align-items:center;gap:8px;border:none;
  background:#fff;border-radius:var(--radius);padding:22px 10px;cursor:pointer;font-family:inherit;
  box-shadow:0 5px 0 rgba(0,0,0,.1);border-bottom:6px solid var(--accent)}
.cat-tile:active{transform:translateY(3px)}
.cat-emoji{font-size:52px} .cat-name{font-weight:800;font-size:17px;color:var(--ink)}
.btn.mode{display:flex;align-items:center;justify-content:center;text-align:center;min-height:120px;background:#fff;border-bottom:6px solid var(--accent)}

/* Animal grid (Learn / Free Play) */
.animal-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:14px}
.animal-card{display:flex;flex-direction:column;align-items:center;gap:6px;border:none;
  background:#fff;border-radius:20px;padding:16px 6px;cursor:pointer;font-family:inherit;
  box-shadow:0 4px 0 rgba(0,0,0,.1)}
.animal-card:active{transform:translateY(2px)}
.a-emoji{font-size:52px} .a-name{font-weight:800;font-size:15px}
.wiggle{animation:wiggle .5s ease}
.reduced-motion .wiggle{animation:none}
@keyframes wiggle{0%,100%{transform:rotate(0)}25%{transform:rotate(-8deg) scale(1.08)}75%{transform:rotate(8deg) scale(1.08)}}

/* Relaxed mode */
.relaxed-stage{display:flex;flex-direction:column;align-items:center;gap:10px;flex:1;justify-content:center}
.relaxed-animal{font-size:150px;background:none;border:none;cursor:pointer;line-height:1}
.relaxed-name{font-size:34px;font-weight:800;color:var(--accent)}
.relaxed-nav{display:flex;gap:16px;justify-content:center}

/* Sound Match */
.match-prompt{display:flex;justify-content:center}
.btn.replay{background:var(--sun);font-size:22px}
.choice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:16px}
.choice-card{font-size:64px;border:none;background:#fff;border-radius:24px;padding:20px;cursor:pointer;
  box-shadow:0 5px 0 rgba(0,0,0,.1);font-family:inherit}
.choice-card:active{transform:translateY(3px)}
.choice-card.correct{background:var(--leaf);animation:pop .4s ease}
.choice-card.nudge{animation:nudge .45s ease}
.choice-card.hint{outline:4px dashed var(--primary);outline-offset:3px}
@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.15)}100%{transform:scale(1)}}
@keyframes nudge{0%,100%{transform:translateX(0)}25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
.reduced-motion .choice-card.correct,.reduced-motion .choice-card.nudge{animation:none}

/* Stickers */
.sticker-shelf{display:grid;grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:14px;width:100%}
.sticker{font-size:46px;background:#fff;border:none;border-radius:18px;padding:12px;cursor:pointer;
  box-shadow:0 4px 0 rgba(0,0,0,.08)}
.empty{grid-column:1/-1;text-align:center;color:var(--ink-soft);font-size:18px}

/* Parent */
.parent-gate{text-align:center;display:flex;flex-direction:column;gap:14px;align-items:center}
.gate-opts{display:flex;gap:14px}.btn.gate{min-width:84px;font-size:26px}
.parent-panel{display:flex;flex-direction:column;gap:16px}
.set-row{display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:#fff;border-radius:18px;padding:14px 18px;box-shadow:0 3px 0 rgba(0,0,0,.06)}
.set-row label{font-weight:800;font-size:17px}
.set-row input[type=range]{flex:1;max-width:200px;height:30px}
.seg{display:flex;gap:8px}.seg-btn{font-size:15px;padding:10px 12px;box-shadow:0 3px 0 rgba(0,0,0,.1)}
.seg-btn.on{background:var(--primary)}
.privacy{font-size:14px;color:var(--ink-soft);text-align:center;line-height:1.5}

/* Confetti */
.confetti{position:fixed;width:12px;height:12px;border-radius:3px;pointer-events:none;z-index:20;
  animation:confetti .9s ease-out forwards}
@keyframes confetti{0%{transform:translate(0,0) rotate(0);opacity:1}
  100%{transform:translate(var(--dx),var(--dy)) rotate(360deg);opacity:0}}

/* Landscape / wider screens: more columns feel roomy */
@media(min-width:720px){
  .home-grid{grid-template-columns:repeat(2,1fr)}
  .title{font-size:38px}
}

@media(max-width:640px){
  :root{--header-space:86px}
  .game-header{gap:10px;padding-top:max(10px,env(safe-area-inset-top));padding-bottom:10px}
  .game-mark{width:50px;height:50px;border-radius:16px;font-size:28px}
  .game-brand{gap:10px}
  .game-brand p{display:none}
  .home-link,.hud-star{min-height:48px;border-radius:16px}
  .home-link{width:48px;padding:0;font-size:21px}
  .home-link span:last-child{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
  .hud-star{padding:0 12px}
}

@media(max-width:420px){
  :root{--header-space:130px}
  .game-header{align-items:flex-start;flex-direction:column}
  .game-actions{width:100%;justify-content:space-between}
  .home-link{width:auto;padding:0 14px;font-size:18px}
  .home-link span:last-child{position:static;width:auto;height:auto;margin:0;overflow:visible;clip:auto;white-space:nowrap}
}