:root{--bg: #f5f9ff;--green: #206135;--teal: #33cccc;--hazard: #d97706;--neutral: #4b5563;--compost: #8b5e3c;--recyclable: #206135;--hazardous: #d97706;--nonRecyclable: #4b5563;--ink: #1b2733;--card: #ffffff;--shadow: 0 8px 24px rgba(16, 42, 67, .12);--radius: 16px}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:Manrope,system-ui,sans-serif;background:var(--bg);color:var(--ink);-webkit-tap-highlight-color:transparent;overscroll-behavior:none}#app{position:relative;width:100%;height:100dvh;max-width:560px;margin:0 auto;overflow:hidden;background:var(--bg);box-shadow:var(--shadow)}.screen{position:absolute;inset:0;display:none;flex-direction:column;animation:fade .25s ease}.screen.active{display:flex}@keyframes fade{0%{opacity:0}to{opacity:1}}.btn{font-family:inherit;font-weight:600;font-size:1.05rem;padding:14px 20px;border:2px solid var(--green);background:#fff;color:var(--green);border-radius:var(--radius);cursor:pointer;transition:transform .08s ease,background .15s ease;width:100%}.btn:active{transform:scale(.97)}.btn-primary{background:var(--green);color:#fff}.btn-toggle{border-color:var(--neutral);color:var(--neutral)}.icon-btn{font-size:1.4rem;background:none;border:none;cursor:pointer;padding:4px 8px;color:var(--ink)}.back-btn{align-self:flex-start;background:none;border:none;font-family:inherit;font-size:1rem;font-weight:600;color:var(--green);cursor:pointer;margin-bottom:8px}.logo{font-weight:700;letter-spacing:4px;font-size:2.4rem;color:#fff;background:var(--green);display:inline-block;padding:8px 18px;border-radius:12px}.logo.small{font-size:1.4rem;padding:6px 12px}#screen-splash{background:linear-gradient(160deg,var(--green),#2f8c4f);color:#fff}.splash-inner{margin:auto;text-align:center;padding:24px;display:flex;flex-direction:column;align-items:center;gap:18px}#screen-splash .logo{background:#fff;color:var(--green)}.splash-title{font-size:2rem;font-weight:700}.quote{font-style:italic;opacity:.92;max-width:320px;line-height:1.4}.loading-bar{width:220px;height:8px;background:#ffffff4d;border-radius:8px;overflow:hidden}.loading-fill{width:0%;height:100%;background:var(--teal);transition:width .2s linear}.loading-text{font-size:.85rem;opacity:.85}.home-inner{margin:auto;text-align:center;padding:28px;display:flex;flex-direction:column;align-items:center;gap:14px;width:100%}.home-title{font-size:2.2rem;font-weight:700;color:var(--green)}.home-sub{color:var(--neutral);max-width:320px;line-height:1.4}.menu{display:flex;flex-direction:column;gap:12px;width:100%;max-width:320px;margin-top:10px}.footer-note{font-size:.8rem;color:var(--neutral);margin-top:12px}.hud{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:#fff;border-bottom:2px solid #e6eef7;gap:10px}.hud-center{flex:1;text-align:center}.hud-level{font-weight:600;font-size:.9rem;color:var(--neutral)}.lives{font-size:1.1rem;letter-spacing:2px}.score{font-weight:700;font-size:1.3rem;color:var(--green)}.hud-right{display:flex;align-items:center;gap:6px}.progress{width:100%;height:6px;background:#e6eef7;border-radius:6px;overflow:hidden;margin-top:4px}.progress-fill{width:0%;height:100%;background:var(--teal);transition:width .2s ease}.playfield{position:relative;flex:1;overflow:hidden;background:radial-gradient(circle at 50% 0%,rgba(51,204,204,.1),transparent 60%),var(--bg)}.item{position:absolute;top:0;display:flex;flex-direction:column;align-items:center;gap:2px;width:84px;text-align:center;cursor:grab;user-select:none;touch-action:none;will-change:transform}.item .item-emoji{font-size:2.6rem;line-height:1;filter:drop-shadow(0 3px 4px rgba(0,0,0,.15));pointer-events:none}.item .item-name{font-size:.72rem;font-weight:600;color:var(--ink);background:#ffffffd9;border-radius:6px;padding:1px 5px;pointer-events:none}.item.dragging{cursor:grabbing;transform-origin:center;z-index:5}.bins{display:flex;gap:6px;padding:8px 8px 12px;background:#fff;border-top:2px solid #e6eef7}.bin{flex:1;min-width:0;border-radius:12px 12px 8px 8px;color:#fff;padding:10px 4px 12px;text-align:center;cursor:pointer;transition:transform .08s ease,filter .12s ease;border:3px solid transparent}.bin:active{transform:translateY(2px)}.bin.highlight{filter:brightness(1.15);border-color:#fff;transform:translateY(-3px)}.bin .bin-emoji{font-size:1.5rem}.bin .bin-label{display:block;font-size:.72rem;font-weight:700;margin-top:2px;line-height:1.1}.toast{position:absolute;left:50%;top:40%;transform:translate(-50%,-50%);background:#206135f2;color:#fff;padding:10px 16px;border-radius:12px;font-weight:700;text-align:center;max-width:80%;box-shadow:var(--shadow);z-index:8;animation:pop .3s ease}.toast .toast-fact{display:block;font-weight:400;font-size:.8rem;margin-top:4px;opacity:.95}@keyframes pop{0%{transform:translate(-50%,-40%) scale(.8);opacity:0}to{transform:translate(-50%,-50%) scale(1);opacity:1}}.streak-badge{position:absolute;top:70px;right:14px;background:var(--teal);color:#06343a;font-weight:700;padding:6px 12px;border-radius:20px;box-shadow:var(--shadow);z-index:7;animation:pop .3s ease}.modal{position:absolute;inset:0;background:#101e2d8c;display:flex;align-items:center;justify-content:center;z-index:20;padding:24px;animation:fade .2s ease}.modal[hidden]{display:none}.modal-card{background:var(--card);border-radius:var(--radius);padding:24px;text-align:center;width:100%;max-width:360px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;animation:pop .25s ease}.modal-emoji{font-size:2.6rem}.modal-title{font-size:1.4rem;font-weight:700;color:var(--hazard)}.modal-item{font-weight:700;font-size:1.05rem}.modal-fact{color:var(--neutral);line-height:1.4}.modal-correct{font-weight:600;color:var(--green)}.stats-inner{margin:auto;text-align:center;padding:28px;width:100%;display:flex;flex-direction:column;align-items:center;gap:16px}.stats-title{font-size:2rem;font-weight:700;color:var(--green)}.rating{font-size:1.1rem;font-weight:600;background:var(--teal);color:#06343a;padding:8px 16px;border-radius:20px}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%;max-width:320px}.stat{background:#fff;border:2px solid #e6eef7;border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:4px}.stat-num{font-size:1.6rem;font-weight:700;color:var(--green)}.stat-label{font-size:.78rem;color:var(--neutral)}.stats-buttons{display:flex;flex-direction:column;gap:10px;width:100%;max-width:320px;margin-top:8px}.learn-inner{padding:20px;overflow-y:auto;height:100%}.learn-title{font-size:1.6rem;font-weight:700;color:var(--green);margin-bottom:4px}.learn-sub{color:var(--neutral);margin-bottom:16px}.learn-group{border-radius:12px;padding:14px;margin-bottom:12px;color:#fff}.learn-group h3{font-size:1.05rem;margin-bottom:8px}.learn-items{display:flex;flex-wrap:wrap;gap:8px}.learn-chip{background:#fff3;border-radius:20px;padding:5px 10px;font-size:.8rem;font-weight:600}.leaderboard-list{list-style:none;counter-reset:rank;display:flex;flex-direction:column;gap:8px}.leaderboard-list li{counter-increment:rank;display:flex;align-items:center;gap:12px;background:#fff;border:2px solid #e6eef7;border-radius:12px;padding:12px 16px;font-weight:600}.leaderboard-list li:before{content:counter(rank);font-weight:700;color:var(--green);width:24px}.leaderboard-list li .lb-score{margin-left:auto;color:var(--green);font-weight:700}.level-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.level-btn{font-family:inherit;background:#fff;border:2px solid var(--green);border-radius:12px;padding:10px 6px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:4px;transition:transform .08s ease;min-height:76px}.level-btn:active{transform:scale(.96)}.level-btn .level-num{font-size:1.4rem;font-weight:700;color:var(--green)}.level-btn .level-focus{font-size:.62rem;font-weight:600;color:var(--neutral);line-height:1.2}.level-btn.locked{border-color:#cfd8e3;cursor:not-allowed;opacity:.6}.level-btn.locked .level-num{color:var(--neutral)}.level-intro{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:#f5f9ffeb;z-index:10;animation:fade .25s ease}.level-intro[hidden]{display:none}.level-intro-num{font-size:2.4rem;font-weight:700;color:var(--green);animation:introPop .4s ease}.level-intro-focus{font-size:1rem;font-weight:600;color:var(--neutral);max-width:80%;text-align:center}@keyframes introPop{0%{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:1}}.item.active .item-emoji{filter:drop-shadow(0 0 10px var(--teal)) drop-shadow(0 3px 4px rgba(0,0,0,.15))}.item.active .item-name{background:var(--teal);color:#06343a}.playfield.hurt:after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 60px 18px #d93e0673;animation:hurtFade .5s ease forwards;z-index:6}@keyframes hurtFade{0%{opacity:1}to{opacity:0}}.confetti-piece{position:absolute;top:-40px;z-index:30;pointer-events:none;animation:confettiFall linear forwards}@keyframes confettiFall{to{transform:translateY(110vh) rotate(540deg);opacity:.85}}.learn-chip{font-family:inherit;border:none;cursor:pointer;transition:transform .08s ease}.learn-chip:active{transform:scale(.95)}.learn-fact{margin-top:10px;font-size:.82rem;line-height:1.4;background:#ffffff29;border-radius:8px;padding:8px 10px}@media(max-height:680px){.bin .bin-emoji{font-size:1.25rem}.item .item-emoji{font-size:2.2rem}}