:root{--green: #237b41;--green-2: #2f9a54;--bronze: #c9782f;--bronze-2: #f0b27a;--silver: #9aa6b8;--silver-2: #e6ecf5;--gold: #e0a218;--gold-2: #ffe27a;--store: #7d5cff;--radius: 12px;--radius-small: 8px;--font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--tap: 72px;--nav-h: 64px}:root,:root[data-theme=light]{color-scheme:light;--bg: #f4efe7;--bg-glow: transparent;--surface: #fffdf9;--surface-2: #f5f5f5;--surface-3: #f0ede8;--text: #1e2928;--muted: #6e7774;--border: #ded8ce;--nav-bg: #fffdf9;--nav-text: #1e2928;--shadow: 0 2px 8px rgba(47, 41, 32, .08);--shadow-lg: 0 24px 70px rgba(47, 41, 32, .11);--tile: #fffdf9;--tile-hover: #f0ede8;--ring-idle: #ded8ce;--primary: #2563eb;--primary-2: #3b82f6;--primary-on: #ffffff;--success: #16a34a;--danger: #dc2626;--notice-bg: #dcfce7;--notice-text: #166534;--error-bg: #fee2e2;--error-text: #991b1b}:root[data-theme=dark]{color-scheme:dark;--bg: 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6px;border-radius:999px;font-size:.75rem}.navbar{position:sticky;top:0;z-index:100;min-height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:max(8px,env(safe-area-inset-top)) max(24px,env(safe-area-inset-right)) 8px max(24px,env(safe-area-inset-left));background:var(--nav-bg);color:var(--nav-text);border-bottom:1px solid var(--border);box-shadow:var(--shadow)}.navbar-left{display:flex;align-items:center;gap:20px}.navbar-language{display:flex;padding:3px;border-radius:999px;background:var(--surface-3)}.language-option{min-height:32px;min-width:42px;border:0;border-radius:999px;padding:4px 10px;color:var(--muted);background:transparent;font-size:12px;font-weight:700;cursor:pointer;transition:background .15s ease,color .15s ease}.language-option.active{background:var(--green);color:#fff;box-shadow:0 2px 5px 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var(--nav-h))}.tracker-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.tracker-actions{display:flex;gap:8px;margin-left:auto}.class-select{min-height:48px;border-radius:999px;border:none;font-weight:800;font-size:1.05rem;background-color:var(--surface);box-shadow:var(--shadow);padding-left:18px}.tracker-hint{color:var(--muted);font-weight:600;margin:-6px 0 0}.student-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:14px;align-content:start}.student-tile{display:grid;justify-items:center;gap:10px;padding:14px 8px 10px;border:0;cursor:pointer;border-radius:var(--radius);background:transparent;color:var(--text);box-shadow:none;touch-action:manipulation;user-select:none;-webkit-user-select:none;transition:background .15s ease,transform .12s ease}.student-tile:hover{background:transparent}.student-tile:active{transform:scale(.97)}.student-tile.is-pending{cursor:progress}.student-tile.is-maxed{border-color:var(--border)}.student-name{font-weight:800;font-size:.95rem;text-align:center;line-height:1.2;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.student-total{font-size:.75rem;color:var(--muted);font-weight:700}.token-ring{position:relative;width:var(--size);height:var(--size);display:grid;place-items:center}.token-ring-metal{position:absolute;inset:-8px;border-radius:50%;background:conic-gradient(from 210deg,var(--m1),var(--m2),var(--m1),var(--m3),var(--m2),var(--m1));box-shadow:0 6px 16px #00000040,inset 0 0 0 2px #ffffff59;transition:inset .2s ease,opacity .2s ease}.token-ring-inner{position:relative;border-radius:50%;background:var(--surface-2);box-shadow:inset 0 0 0 3px #0000001f}.token-ring-inner .avatar{display:block}.token-ring.level-none .token-ring-metal{--m1: var(--ring-idle);--m2: var(--ring-idle);--m3: var(--ring-idle);inset:-5px;box-shadow:none}.token-ring.level-bronze .token-ring-metal{--m1: #8a4b17;--m2: var(--bronze-2);--m3: var(--bronze)}.token-ring.level-silver .token-ring-metal{--m1: #6f7d92;--m2: #ffffff;--m3: var(--silver)}.token-ring.level-gold .token-ring-metal{--m1: #b47a00;--m2: var(--gold-2);--m3: var(--gold)}.token-ring.level-gold .token-ring-metal:after{content:"";position:absolute;inset:-6px;border-radius:50%;box-shadow:0 0 12px 2px #ffd25a40;animation:gold-glow 1.8s ease-in-out infinite alternate}@keyframes gold-glow{0%{opacity:.5}to{opacity:1}}.level-coin{position:absolute;right:-12px;bottom:-8px;filter:drop-shadow(0 3px 6px rgba(0,0,0,.35))}.tile-fx{display:block;position:relative}.fx-pop{animation:pop .42s cubic-bezier(.2,1.4,.4,1)}.fx-undo{animation:undo .32s ease}.fx-shake{animation:shake .4s ease}.fx-maxed{animation:wobble .5s ease}@keyframes pop{0%{transform:scale(.85) rotate(-6deg)}55%{transform:scale(1.18) rotate(4deg)}to{transform:scale(1) rotate(0)}}@keyframes undo{0%{transform:scale(1)}50%{transform:scale(.9);filter:grayscale(.6)}to{transform:scale(1)}}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-8px)}40%,80%{transform:translate(8px)}}@keyframes wobble{0%,to{transform:rotate(0)}25%{transform:rotate(-7deg)}75%{transform:rotate(7deg)}}.coin-fly{position:absolute;left:50%;top:50%;width:calc(var(--size) * .9);height:calc(var(--size) * .9);pointer-events:none;z-index:2;transform:translate(-50%,-50%);animation:coin-fly .9s cubic-bezier(.2,.9,.3,1) forwards;filter:drop-shadow(0 8px 14px rgba(0,0,0,.4))}@keyframes coin-fly{0%{transform:translate(-50%,-50%) translateY(-90px) scale(.2) rotateY(0);opacity:0}25%{opacity:1}60%{transform:translate(-50%,-50%) translateY(0) scale(1.1) rotateY(540deg);opacity:1}to{transform:translate(-50%,-50%) translateY(0) scale(.35) rotateY(720deg);opacity:0}}.sparks{position:absolute;inset:0;pointer-events:none}.sparks i{position:absolute;left:50%;top:50%;width:10px;height:10px;border-radius:50%;background:radial-gradient(circle,#fff,var(--gold-2) 60%,transparent 70%);transform:translate(-50%,-50%) rotate(var(--angle)) translateY(0) scale(.4);animation:spark .65s ease-out var(--delay) forwards}@keyframes spark{10%{opacity:1}to{transform:translate(-50%,-50%) rotate(var(--angle)) translateY(calc(var(--size) * -.85)) scale(1);opacity:0}}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%);z-index:20;background:var(--text);color:var(--bg);padding:12px 20px;border-radius:999px;font-weight:800;box-shadow:var(--shadow);animation:pop .3s ease}.modal-overlay{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:20px;background:#0006;animation:fade-in .15s ease}.modal-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);max-width:420px;width:100%;max-height:80vh;overflow-y:auto;padding:20px;animation:pop .25s ease}.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.modal-head h2{margin:0}.modal-x{border:0;background:none;font-size:1.6rem;color:var(--muted);cursor:pointer;padding:0 4px;line-height:1}.modal-x:hover{color:var(--text)}.modal-list{margin-top:12px}.modal-list .list-row{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:0;border-radius:var(--radius-small);background:var(--surface-2);color:var(--text);cursor:pointer;text-align:left;transition:background .12s ease}.modal-list .list-row:hover{background:var(--surface-3)}.modal-list .list-row.is-active{background:color-mix(in srgb,var(--green) 15%,var(--surface-2))}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.classes-layout{display:grid;grid-template-columns:minmax(260px,1fr) 2fr;gap:18px;align-items:start}.class-list 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p{margin:0}.coin-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px}.coin-cell{display:grid;justify-items:center;gap:14px;padding:22px 12px 16px}.coin-cell .token-coin{filter:drop-shadow(0 6px 12px rgba(0,0,0,.25))}.coin-label{font-weight:800}.coin-row.compact{grid-template-columns:repeat(4,auto);justify-content:start;gap:22px;margin:8px 0 12px}.coin-row.compact .coin-cell{padding:0;gap:8px}.smelt-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin-top:14px}.smelt-btn{display:grid;grid-template-columns:auto auto auto;align-items:center;justify-content:center;gap:10px;padding:16px 12px;min-height:96px;border:2px solid var(--border);border-radius:var(--radius);background:var(--surface-2);color:var(--text);cursor:pointer;font-weight:800;transition:transform .12s ease,border-color .12s ease}.smelt-btn:not(:disabled):hover{border-color:var(--primary);transform:translateY(-2px)}.smelt-btn.is-locked{opacity:.55;cursor:default}.smelt-inputs{display:flex}.smelt-inputs .token-coin+.token-coin{margin-left:-10px}.smelt-arrow{font-size:1.4rem;color:var(--muted)}.smelt-caption{grid-column:1 / -1;text-align:center;font-size:.9rem}.store-balance{display:flex;align-items:center;gap:12px;padding:10px 16px}.store-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.store-item{display:grid;justify-items:center;gap:8px;padding:20px 16px;text-align:center}.store-item.is-owned{outline:3px solid var(--success)}.store-avatar{padding:8px;border-radius:50%;background:var(--surface-2)}.store-avatar-btn{border:0;background:none;padding:0;cursor:pointer;border-radius:50%;transition:transform .15s ease}.store-avatar-btn:hover{transform:scale(1.05)}.store-price{display:flex;align-items:center;gap:6px;font-size:1.1rem}.store-preview-modal{text-align:center}.store-preview-avatar{display:flex;justify-content:center;margin-bottom:16px}.store-preview-avatar .avatar{border-radius:50%;background:var(--surface-2);padding:12px}.store-price-large{justify-content:center;font-size:1.4rem;margin:12px 0}.today-card{position:relative;overflow:hidden}.today-card:before{content:"";position:absolute;inset:0;opacity:.18;pointer-events:none;background:radial-gradient(600px 300px at 80% 20%,var(--glow, transparent),transparent 70%)}.today-bronze{--glow: var(--bronze-2)}.today-silver{--glow: #ffffff}.today-gold{--glow: var(--gold-2)}.today-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}.today-head h1{margin-bottom:2px}.today-body{display:flex;align-items:center;gap:32px;flex-wrap:wrap;justify-content:center}.today-coin{filter:drop-shadow(0 16px 28px rgba(0,0,0,.35))}.today-gold .today-coin{animation:pop .5s cubic-bezier(.2,1.4,.4,1),float 3s ease-in-out .5s infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.today-empty{width:200px;height:200px;border-radius:50%;border:6px dashed var(--border);background:var(--surface-2);flex:0 0 auto}.today-text{display:grid;gap:6px;max-width:380px;flex:1 1 260px}.today-text p{margin:0}.today-kicker{text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;font-weight:900;color:var(--muted)}.today-level{font-size:clamp(2.2rem,5vw,3.2rem);font-weight:900;letter-spacing:-.02em;line-height:1}.today-bronze .today-level{color:var(--bronze)}.today-silver .today-level{color:var(--silver)}.today-gold .today-level{color:var(--gold)}.streak-chip{padding:6px 12px;border-radius:999px;background:color-mix(in srgb,var(--gold) 20%,var(--surface));color:var(--gold);font-weight:900;font-size:.85rem}.day-strip{list-style:none;margin:0;padding:4px 0;display:grid;grid-template-columns:repeat(var(--days, 14),minmax(44px,1fr));gap:6px;overflow-x:auto}.day{display:grid;justify-items:center;gap:6px}.day-slot{width:44px;height:44px;border-radius:50%;border:3px dashed var(--border);background:var(--surface-2)}.day-label{display:grid;justify-items:center;font-size:.7rem;color:var(--muted);line-height:1.1}.day-label b{color:var(--text)}.bank-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:12px}.bank-cell{display:grid;justify-items:center;gap:6px;padding:16px 8px;border-radius:var(--radius-small);background:var(--surface-2)}.bank-cell.is-empty .token-coin{opacity:.35;filter:grayscale(.5)}.bank-count{font-size:1.8rem;font-weight:900;line-height:1}.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.steps li{display:flex;align-items:center;gap:12px;font-weight:700;padding:10px 12px;border-radius:var(--radius-small);background:var(--surface-2)}.step-num{flex:0 0 34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:var(--primary-on);font-weight:900}.step-pic{display:flex;align-items:center;flex:0 0 auto}.step-pic .token-coin+.token-coin{margin-left:-12px}.step-fire{font-size:1.6rem}.recipe{display:grid;gap:14px;justify-items:center;text-align:center}.recipe.is-locked .recipe-out{opacity:.4;filter:grayscale(.6)}.recipe-title{display:grid;gap:8px;justify-items:center}.have-chip{padding:6px 14px;border-radius:999px;background:var(--surface-3);font-weight:700}.have-chip.is-ready{background:color-mix(in srgb,var(--success) 20%,var(--surface));color:var(--success)}.recipe-stage{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:center;min-height:120px}.recipe-inputs{display:flex;gap:10px}.recipe-in{filter:drop-shadow(0 6px 10px rgba(0,0,0,.25));transition:opacity .2s ease}.recipe-in.is-missing{opacity:.25;filter:grayscale(1)}.recipe-arrow{font-size:2rem;color:var(--muted);font-weight:900}.recipe-out{filter:drop-shadow(0 10px 18px rgba(0,0,0,.3))}.recipe-meter{display:flex;gap:8px}.recipe-meter i{width:46px;height:10px;border-radius:999px;background:var(--surface-3)}.recipe-meter i.is-filled{background:var(--success)}.btn-huge{min-height:64px;font-size:1.25rem;padding:16px 32px;width:min(420px,100%)}.is-merging .in-0{animation:merge-0 .7s ease-in forwards}.is-merging .in-1{animation:merge-1 .7s ease-in forwards}.is-merging .in-2{animation:merge-2 .7s ease-in forwards}.is-merging .recipe-out{animation:forge .9s cubic-bezier(.2,1.4,.4,1) .5s both}@keyframes merge-0{to{transform:translate(230px) scale(.2) rotate(360deg);opacity:0}}@keyframes merge-1{to{transform:translate(136px) scale(.2) rotate(360deg);opacity:0}}@keyframes merge-2{to{transform:translate(42px) scale(.2) rotate(360deg);opacity:0}}@keyframes forge{0%{transform:scale(.6);filter:brightness(2.2) drop-shadow(0 0 30px #fff)}60%{transform:scale(1.25)}to{transform:scale(1);filter:brightness(1)}}.settings-form{display:grid;gap:14px;justify-items:start}.settings-form label{display:grid;gap:6px;font-weight:700;width:min(420px,100%)}.settings-form select{width:min(420px,100%)}.avatar-picker{display:flex;flex-wrap:wrap;gap:8px}.avatar-choice{border:3px solid transparent;border-radius:50%;padding:3px;background:var(--surface-2);cursor:pointer;line-height:0}.avatar-choice.is-special{border-color:color-mix(in srgb,var(--store) 45%,transparent)}.avatar-choice.is-on{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 30%,transparent)}.avatars-current{display:grid;justify-items:center;gap:10px;padding:12px 0}.avatars-current .list-title{font-weight:800;font-size:1.1rem}.avatar-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:14px}.avatar-tile{position:relative;display:grid;justify-items:center;gap:6px;padding:14px 8px;border:2px solid var(--border);border-radius:var(--radius);background:var(--surface-2);cursor:pointer;transition:border-color .15s ease,transform .12s ease}.avatar-tile:hover{transform:scale(1.04)}.avatar-tile.is-special{border-color:color-mix(in srgb,var(--store) 40%,var(--border))}.avatar-tile.is-on{border-color:var(--green);box-shadow:0 0 0 3px color-mix(in srgb,var(--green) 25%,transparent)}.avatar-tile-name{font-weight:700;font-size:.85rem;text-align:center}.avatar-tile-badge{position:absolute;top:6px;right:8px;color:var(--green);font-weight:900}.avatar-tile-tag{position:absolute;top:6px;left:8px;font-size:.65rem;font-weight:700;padding:2px 6px;border-radius:999px;background:color-mix(in srgb,var(--store) 20%,var(--surface-3));color:var(--store)}.subnav{display:flex;gap:6px;flex-wrap:wrap}.subnav a{color:var(--muted);text-decoration:none;font-weight:800;padding:10px 16px;border-radius:999px;background:var(--surface-3)}.subnav a.active{color:#fff;background:var(--green)}.admin-stats,.admin-store,.admin-users,.admin-tokens{display:grid;gap:18px}.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px}.stat-card{display:grid;gap:4px;padding:16px;text-align:center}.stat-card b{font-size:1.8rem}.bars{display:flex;align-items:flex-end;gap:4px;height:180px;padding-top:8px;overflow-x:auto}.bar{flex:1 0 22px;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:4px}.bar-stack{width:100%;display:flex;flex-direction:column;border-radius:6px 6px 0 0;overflow:hidden;min-height:2px}.seg{display:block}.seg-bronze{background:var(--bronze)}.seg-silver{background:var(--silver)}.seg-gold{background:var(--gold)}.bar-label{font-size:.65rem;color:var(--muted)}.store-form{display:flex;gap:16px;align-items:flex-start}.store-form .inline-form{flex:1}.store-preview{flex:0 0 auto;padding:6px;border-radius:50%;background:var(--surface-2)}.suggestions{margin-top:8px}@media(max-width:720px){.screen{padding:16px;gap:14px}.card{padding:16px;border-radius:16px}.navbar{padding:6px 12px;gap:10px}.navbar-brand{display:none}.student-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:10px}.classes-layout{grid-template-columns:1fr}.coin-row.compact{grid-template-columns:repeat(2,auto)}.tracker-actions{margin-left:0}.today-body{gap:18px}.today-coin,.today-empty{width:150px;height:150px}.today-text{text-align:center;justify-items:center}.day-strip{grid-template-columns:repeat(auto-fill,minmax(44px,1fr))}.bank-row{grid-template-columns:repeat(2,1fr)}.recipe-stage{flex-direction:column}.recipe-arrow{transform:rotate(90deg)}.is-merging .in-0,.is-merging .in-1,.is-merging .in-2{animation-name:merge-down}@keyframes merge-down{to{transform:translateY(120px) scale(.2) rotate(360deg);opacity:0}}}@media(prefers-reduced-motion:reduce){.fx-pop,.fx-undo,.fx-shake,.fx-maxed,.sparks i,.coin-fly,.token-ring.level-gold .token-ring-metal:after{animation:none}.coin-fly{display:none}}@media(min-width:1400px){.student-grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:18px}.student-tile{padding:18px 10px 14px}.student-tile .token-ring{--size: 96px}.student-tile .token-ring .avatar{width:96px!important;height:96px!important}.student-name{font-size:1.1rem}.student-total{font-size:.85rem}}@media(min-width:1800px){.screen.tracker{max-width:2000px}.student-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:22px}.student-tile{padding:22px 12px 16px}.student-tile .token-ring{--size: 112px}.student-tile .token-ring .avatar{width:112px!important;height:112px!important}.student-name{font-size:1.2rem}.student-total{font-size:.9rem}}