:root{color:#22313a;background:#f7fbf8;font-family:Inter,ui-rounded,SF Pro Rounded,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{min-width:320px;min-height:100vh;overflow-x:hidden;-webkit-user-select:none;user-select:none}button,input{font:inherit}button{min-height:48px;border:0;border-radius:8px;cursor:pointer}button:disabled{cursor:default;opacity:.58}button:focus-visible,input:focus-visible{outline:3px solid #2156a3;outline-offset:3px}img{display:block;max-width:100%}.app-shell{min-height:100vh;background:linear-gradient(180deg,rgba(216,244,255,.72),transparent 42%),#f7fbf8}.top-bar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px clamp(16px,4vw,36px);background:#f7fbf8f0;border-bottom:1px solid rgba(60,92,72,.15);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.brand-button{min-height:44px;padding:0;color:#1f3d2b;background:transparent;font-size:1.15rem;font-weight:800;letter-spacing:0}.top-actions,.pack-actions,.mode-header,.language-toggle{display:flex;align-items:center;gap:10px}.top-actions{flex-wrap:wrap;justify-content:flex-end}.icon-button,.text-button,.secondary-action,.nav-button{padding:0 18px;color:#214035;background:#e5f2eb}.primary-action{padding:0 22px;color:#fff;background:#246b54;font-weight:800}.home-screen,.mode-screen{width:min(1120px,100%);margin:0 auto;padding:clamp(16px,3vw,32px)}.home-intro{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:18px}.kicker{margin:0 0 6px;color:#5b766b;font-size:.9rem;font-weight:800;text-transform:uppercase;letter-spacing:0}h1,h2,h3,p{margin-top:0}h1{margin-bottom:0;font-size:3.5rem;line-height:1;letter-spacing:0}.home-intro h1{font-size:3.25rem}.language-toggle{padding:4px;background:#e5f2eb;border-radius:8px}.language-toggle button{min-height:44px;padding:0 16px;color:#2a463b;background:transparent}.language-toggle button.is-selected{color:#fff;background:#246b54}.language-toggle.compact{flex-shrink:0}.pack-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:18px}.pack-card{display:grid;gap:12px;padding:12px;background:#fff;border:2px solid rgba(60,92,72,.14);border-radius:8px;box-shadow:0 16px 40px #203e3414}.pack-card.is-selected{border-color:#246b54}.pack-select{display:grid;grid-template-columns:132px 1fr;gap:14px;min-height:136px;padding:0;color:inherit;text-align:left;background:transparent}.pack-select img{align-self:center;width:132px;height:auto;aspect-ratio:3 / 2;object-fit:cover;border-radius:8px;background:#d8f4ff}.pack-copy{display:grid;align-content:center;gap:8px;min-width:0}.pack-copy strong{font-size:1.25rem;line-height:1.15}.pack-copy span{color:#50665d;line-height:1.35}.pack-actions{flex-wrap:wrap}.mode-header{justify-content:space-between;margin-bottom:22px}.mode-header h1{max-width:760px;font-size:2.75rem;line-height:1.08}.story-layout{display:grid;gap:14px}.scene-frame{position:relative;overflow:hidden;background:#d8f4ff;border-radius:8px}.scene-image{width:100%;max-height:min(58vh,620px);object-fit:contain;background:#d8f4ff;border-radius:0}.scene-item-tap{--item-scale: 1;position:absolute;display:grid;place-items:center;width:clamp(76px,14vw,136px);aspect-ratio:1;min-height:76px;padding:10px;background:#ffffff38;border:3px solid rgba(255,255,255,.65);border-radius:999px;box-shadow:0 10px 26px #203e3424;transform:translate(-50%,-50%) scale(var(--item-scale));transition:background .18s ease,box-shadow .18s ease,transform .18s ease}.scene-item-tap img{width:100%;height:100%;object-fit:contain;pointer-events:none}.scene-item-tap.is-active{background:#ffffff80;box-shadow:0 16px 34px #203e3433}.scene-item-tap.is-active.interaction-bounce,.scene-item-tap.is-active.interaction-sound{animation:story-item-bounce .72s ease-out}.scene-item-tap.is-active.interaction-move,.scene-item-tap.is-active.interaction-float{animation:story-item-move .8s ease-out}.scene-item-tap.is-active.interaction-glow{animation:story-item-glow .85s ease-out}.replay-action{justify-self:center}.story-controls{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:12px}.scene-progress{min-width:84px;padding:12px 14px;color:#315246;background:#e5f2eb;border-radius:8px;font-weight:900;text-align:center}@keyframes story-item-bounce{0%,to{transform:translate(-50%,-50%) scale(var(--item-scale))}45%{transform:translate(-50%,-58%) scale(calc(var(--item-scale) * 1.06))}}@keyframes story-item-move{0%,to{transform:translate(-50%,-50%) scale(var(--item-scale))}50%{transform:translate(-38%,-50%) scale(var(--item-scale))}}@keyframes story-item-glow{0%,to{box-shadow:0 10px 26px #203e3424;transform:translate(-50%,-50%) scale(var(--item-scale))}50%{box-shadow:0 0 0 12px #ffd86d6b;transform:translate(-50%,-50%) scale(calc(var(--item-scale) * 1.04))}}.card-count{padding:10px 14px;color:#315246;background:#e5f2eb;border-radius:8px;font-weight:800}.card-stage{display:grid;align-content:start;justify-items:center;gap:14px}.vocabulary-card{display:grid;justify-items:center;gap:10px;width:min(460px,100%);min-height:0;padding:clamp(16px,3vw,24px);color:#22313a;background:#fff;box-shadow:0 18px 52px #203e341f}.card-controls{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:min(460px,100%)}.vocabulary-card img{width:min(260px,68vw);aspect-ratio:4 / 3;object-fit:contain}.vocabulary-card span{display:block;max-width:100%;overflow-wrap:anywhere;font-size:3rem;font-weight:900;line-height:1.05;text-align:center;letter-spacing:0}.settings-backdrop{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:18px;background:#12261f52}.settings-backdrop-button{position:absolute;inset:0;width:100%;height:100%;background:transparent;border-radius:0}.settings-panel{position:relative;z-index:1;display:grid;gap:18px;width:min(520px,100%);padding:22px;background:#fff;border-radius:8px;box-shadow:0 24px 80px #12261f33}.settings-panel header{display:flex;align-items:center;justify-content:space-between;gap:12px}.settings-panel h2,.settings-panel h3{margin-bottom:0}.settings-section{display:grid;gap:12px}.settings-check{display:flex;align-items:center;gap:12px;font-size:1.1rem;font-weight:700}.settings-check input{width:28px;height:28px}@media(max-width:720px){.home-intro,.mode-header{align-items:stretch;flex-direction:column}.pack-select{grid-template-columns:112px 1fr}.pack-select img{width:112px}.nav-button{width:100%}.story-controls{grid-template-columns:1fr 1fr}.scene-progress{grid-column:1 / -1;grid-row:1;justify-self:center}h1,.home-intro h1{font-size:2.35rem}.mode-header h1{font-size:2rem}.vocabulary-card span{font-size:2.35rem}}