:root{--bg: #f1f4f9;--surface: #ffffff;--surface-2: #f6f8fc;--sunken: #e6ebf3;--line: #dbe2ec;--line-2: #c4cedb;--fg: #131a26;--fg-2: #46526a;--fg-3: #69768b;--accent: #2563eb;--on-accent: #ffffff;--good: #1c8754;--warn: #a5680b;--bad: #bf392e;--info: #2e63c6;--hard: #c2610f;--accent-soft: color-mix(in srgb, var(--accent) 13%, transparent);--shadow-1: 0 1px 2px rgb(19 26 38 / .06);--shadow-2: 0 2px 6px rgb(19 26 38 / .06), 0 16px 40px rgb(19 26 38 / .1);--b0: var(--sunken);--b1: #e9a39b;--b2: #eec27f;--b3: #bfd6fb;--b4: #6fa0f3;--b5: #2563eb;--r: 14px;--pad: 20px;--f-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;--f-body: "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--f-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--tabbar-h: 64px;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #0d1117;--surface: #141a23;--surface-2: #19212c;--sunken: #222b37;--line: #232d3a;--line-2: #33404f;--fg: #e6ebf2;--fg-2: #a4afbf;--fg-3: #7f8a9b;--accent: #60a5fa;--on-accent: #06101f;--good: #4bc489;--warn: #e3aa4e;--bad: #f27468;--info: #7ba7f3;--hard: #f0954b;--shadow-1: 0 1px 2px rgb(0 0 0 / .35);--shadow-2: 0 2px 6px rgb(0 0 0 / .3), 0 16px 40px rgb(0 0 0 / .4);--b1: #9c4a42;--b2: #a07a3a;--b3: #2f4a78;--b4: #3b82f6;--b5: #60a5fa;color-scheme:dark}}:root[data-theme=dark]{--bg: #0d1117;--surface: #141a23;--surface-2: #19212c;--sunken: #222b37;--line: #232d3a;--line-2: #33404f;--fg: #e6ebf2;--fg-2: #a4afbf;--fg-3: #7f8a9b;--accent: #60a5fa;--on-accent: #06101f;--good: #4bc489;--warn: #e3aa4e;--bad: #f27468;--info: #7ba7f3;--hard: #f0954b;--shadow-1: 0 1px 2px rgb(0 0 0 / .35);--shadow-2: 0 2px 6px rgb(0 0 0 / .3), 0 16px 40px rgb(0 0 0 / .4);--b1: #9c4a42;--b2: #a07a3a;--b3: #2f4a78;--b4: #3b82f6;--b5: #60a5fa;color-scheme:dark}*{box-sizing:border-box}html{font-size:15px;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f-body);line-height:1.5;min-height:100vh;-webkit-tap-highlight-color:transparent}@property --tint{syntax: "<color>"; inherits: true; initial-value: transparent;}:root{transition:--tint .6s ease}#constellation{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:-1;pointer-events:none}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;background:linear-gradient(180deg,color-mix(in srgb,var(--tint) 20%,transparent),transparent 60vh)}button,input,select,textarea{font:inherit;color:inherit}h1,h2,h3{font-family:var(--f-display);margin:0;line-height:1.15;letter-spacing:-.012em;font-weight:650;text-wrap:balance}p{margin:0}code{font-family:var(--f-mono);font-size:.9em}.ic{flex:none;display:block}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.muted{color:var(--fg-3)}.muted-2{color:var(--fg-2)}.small{font-size:.86rem}.strong{font-weight:700}.mono{font-family:var(--f-mono)}.num{font-variant-numeric:tabular-nums}.nowrap{white-space:nowrap}.center{text-align:center;justify-content:center}.pad{padding:12px}.clamp1,.clamp2{display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}.clamp1{-webkit-line-clamp:1}.clamp2{-webkit-line-clamp:2}.eyebrow{font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;color:var(--fg-3);font-weight:700}.row{display:flex;gap:8px;align-items:center}.row>input{flex:1;min-width:0}.row-wrap{display:flex;flex-wrap:wrap;gap:10px;align-items:center}kbd{font-family:var(--f-mono);font-size:.7rem;padding:1px 6px;border-radius:5px;border:1px solid currentColor;opacity:.55;font-weight:400}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 14px;border-radius:10px;border:1px solid var(--line-2);background:var(--surface);color:var(--fg);font-weight:700;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,transform .1s}.btn:hover{background:var(--surface-2);border-color:var(--fg-3)}.btn:active{transform:translateY(1px)}.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.btn-primary:hover{background:color-mix(in srgb,var(--accent) 88%,var(--fg));border-color:transparent}.btn-ghost{border-color:transparent;background:transparent}.btn-ghost:hover{background:var(--surface-2);border-color:transparent}.btn-danger{background:var(--bad);border-color:var(--bad);color:#fff}.btn-danger:hover{background:color-mix(in srgb,var(--bad) 86%,#000);border-color:transparent}.btn-sm{padding:6px 10px;font-size:.87rem;border-radius:8px}.btn-lg{padding:12px 18px;font-size:1.05rem;border-radius:12px}.icon-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;border:0;background:transparent;color:var(--fg-2);cursor:pointer;flex:none}.icon-btn:hover{background:var(--surface-2);color:var(--fg)}.link{border:0;background:none;color:var(--accent);font-weight:700;cursor:pointer;padding:4px}.form{display:flex;flex-direction:column;gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.field>span{font-weight:700;font-size:.9rem;color:var(--fg-2)}input:not([type=checkbox]):not([type=range]),select{width:100%;padding:11px 12px;border-radius:10px;border:1px solid var(--line-2);background:var(--surface);font-size:16px;min-width:0}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:transparent}.dw-field{display:flex;align-items:center;gap:10px;width:100%;height:46px;padding:0 14px;border-radius:10px;border:1px solid var(--line-2);background:var(--surface);color:var(--fg-3);font-size:16px;text-align:left;cursor:pointer}.dw-field:hover{background:var(--surface-2)}.dw-field:focus-visible{outline:2px solid var(--accent);outline-offset:-1px}.dw-field-v{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--fg);font-weight:700}.dw-field-v:first-letter{text-transform:uppercase}.dw-field-v.dw-empty{color:var(--fg-3);font-weight:500}.dw-field-edit{flex:none;font-size:.8rem;font-weight:700;color:var(--accent)}.dw-bg{position:fixed;top:0;right:0;bottom:0;left:0;z-index:210;display:flex;align-items:flex-end;background:#00000080;animation:inFade .18s ease-out both}.dw-sheet{width:100%;background:var(--surface);border-top:1px solid var(--line);border-radius:24px 24px 0 0;padding:10px 16px max(24px,env(safe-area-inset-bottom));box-shadow:var(--shadow-2);animation:dwUp .26s cubic-bezier(.22,1,.36,1) both}@keyframes dwUp{0%{transform:translateY(40px);opacity:0}}@media(min-width:1024px){.dw-bg{align-items:center;justify-content:center;padding:16px}.dw-sheet{max-width:400px;padding:18px;border:1px solid var(--line);border-radius:20px}.dw-grip{display:none!important}}.dw-grip{display:block;width:40px;height:5px;margin:0 auto 14px;border-radius:99px;background:var(--line-2)}.dw-title{margin:0;font-size:.82rem;font-weight:700;color:var(--fg-3)}.dw-long{margin:2px 0 0;font-family:var(--f-display);font-size:1.32rem;font-weight:700;color:var(--fg)}.dw-long:first-letter{text-transform:uppercase}.dw-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}.dw-chip{height:32px;padding:0 12px;border-radius:99px;border:1px solid var(--line-2);background:none;color:var(--fg);font-size:.78rem;font-weight:700;cursor:pointer}.dw-chip:hover{background:var(--surface-2)}.dw-chip.on{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.dw-wheels{position:relative;display:flex;gap:6px;height:200px;margin-top:14px}.dw-band{position:absolute;left:0;right:0;top:80px;height:40px;border-radius:12px;background:var(--accent-soft)}.dw-wheel{position:relative;min-width:0}.dw-day{flex:.8}.dw-month{flex:1.6}.dw-year{flex:1}.dw-scroll{height:200px;padding-right:22px;overflow-y:auto;scroll-snap-type:y mandatory;-webkit-user-select:none;user-select:none;scrollbar-width:none;-webkit-mask-image:linear-gradient(to bottom,transparent,#000 30%,#000 70%,transparent);mask-image:linear-gradient(to bottom,transparent,#000 30%,#000 70%,transparent)}.dw-scroll::-webkit-scrollbar{display:none}@media(pointer:fine){.dw-scroll{cursor:grab}}.dw-opt{display:flex;align-items:center;justify-content:center;width:100%;height:40px;border:0;background:none;scroll-snap-align:center;font-size:17px;font-weight:500;color:var(--fg-3);cursor:inherit;transition:color .15s}.dw-opt.on{color:var(--accent);font-weight:800}.dw-opt:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}.dw-steps{position:absolute;top:80px;right:2px;height:40px;display:flex;flex-direction:column;justify-content:center}.dw-steps button{width:22px;height:18px;display:grid;place-items:center;border:0;border-radius:6px;background:none;color:var(--fg-2);cursor:pointer}.dw-steps button:hover:not(:disabled){background:var(--sunken);color:var(--fg)}.dw-steps button:disabled{opacity:.3;cursor:default}.dw-warn{margin:10px 0 0;font-size:.85rem;font-weight:700;color:var(--bad)}.dw-actions{display:flex;gap:8px;margin-top:16px}.dw-actions .btn{flex:1;height:48px;border-radius:99px;justify-content:center}input[type=range]{flex:1;accent-color:var(--accent)}.check{display:flex;gap:10px;align-items:center;cursor:pointer}.check input{width:20px;height:20px;accent-color:var(--accent)}.form-err{color:var(--bad);font-weight:700}.form-info{color:var(--good);font-weight:700}.seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:4px;padding:4px;border-radius:12px;background:var(--sunken)}.seg button{border:0;background:transparent;padding:9px 10px;border-radius:9px;font-weight:700;color:var(--fg-2);cursor:pointer}.seg button.on{background:var(--surface);color:var(--fg);box-shadow:var(--shadow-1)}.splash{min-height:100vh;display:grid;place-items:center}.auth{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:24px 16px}.auth-card{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-2);padding:clamp(22px,5vw,34px);display:flex;flex-direction:column;gap:20px}.plans{display:grid;grid-template-columns:1fr 1fr;gap:10px}.plans[data-n="1"]{grid-template-columns:1fr}.btn.plan{flex-direction:column;height:auto;padding:14px 10px;gap:2px}.btn.plan small{white-space:normal;text-align:center}.btn.plan b{font-size:1.35rem}.plan-consent{display:flex;gap:8px;align-items:flex-start;color:var(--fg-2);margin-bottom:10px}.plan-consent input{margin-top:2px;accent-color:var(--accent)}.auth-card.paywall{text-align:center}.auth-card.paywall .auth-brand{flex-direction:column;gap:10px}.auth-card.paywall .plan-consent{justify-content:center;align-items:center}.auth-card.paywall .plan-consent input{margin-top:0}.paywall-back{align-self:center}.auth-brand{display:flex;gap:14px;align-items:center}.auth-brand h1{font-size:1.7rem;font-weight:750}.auth-title{font-size:1.2rem}.auth-foot{text-align:center}.app{display:grid;grid-template-columns:236px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;height:100dvh;display:flex;flex-direction:column;gap:22px;padding:18px 12px 16px;border-right:1px solid var(--line);background:var(--surface)}.brand{display:flex;align-items:center;gap:10px;padding:2px 8px;border:0;background:none;cursor:pointer;text-align:left}.logo{display:block;flex:none;object-fit:contain}.brand b{font-family:var(--f-display);font-size:1.2rem;display:block;line-height:1;font-weight:750;letter-spacing:-.02em}.brand-year{display:block;margin-top:3px;font-size:.72rem;font-weight:650;color:var(--fg-3);letter-spacing:.04em}.nav{display:flex;flex-direction:column;gap:2px}.nav-item{--c: var(--accent);position:relative;display:flex;align-items:center;gap:11px;padding:10px;border-radius:10px;border:0;background:none;cursor:pointer;color:var(--fg-2);font-weight:700;text-align:left;width:100%;transition:color .2s}.nav-item:hover{background:linear-gradient(90deg,color-mix(in srgb,var(--c) 13%,transparent),color-mix(in srgb,var(--c) 2%,transparent));color:var(--fg)}.nav-item.on{background:linear-gradient(90deg,color-mix(in srgb,var(--c) 24%,transparent),color-mix(in srgb,var(--c) 5%,transparent));color:color-mix(in srgb,var(--c) 70%,var(--fg))}.nav-item:before{content:"";position:absolute;left:0;top:50%;width:3px;height:0;border-radius:0 3px 3px 0;background:var(--c);transform:translateY(-50%);transition:height .2s}.nav-item.on:before{height:20px}.nav-item .count{margin-left:auto;font-family:var(--f-mono);font-size:.72rem;padding:1px 7px;border-radius:99px;background:var(--accent);color:var(--on-accent)}.side-foot{margin-top:auto}.main{min-width:0}.app.focus{grid-template-columns:minmax(0,1fr)}.app.focus .sidebar{display:none}.page{max-width:1080px;margin:0 auto;padding:28px clamp(16px,3vw,36px) 48px;display:flex;flex-direction:column;gap:22px}.page.narrow{max-width:720px}.page-title{font-size:clamp(1.6rem,3vw,2.1rem);font-weight:750}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:var(--pad);box-shadow:var(--shadow-1);min-width:0;display:flex;flex-direction:column;gap:14px}.panel-h{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.panel-h h2,.h2{font-size:1.12rem}.panel-h p{color:var(--fg-3);font-size:.88rem}.back{align-self:flex-start;margin:-8px 0 -10px -6px}.hero{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap}.hero h1{font-size:clamp(1.8rem,4vw,2.5rem);font-weight:750;margin:4px 0 6px}.hero .eyebrow:first-letter{text-transform:uppercase}.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.tile{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;display:flex;flex-direction:column;gap:4px;box-shadow:var(--shadow-1)}.tile b{font-family:var(--f-display);font-size:1.6rem;font-weight:750;display:flex;align-items:center;gap:6px}.tile b small{font-size:.9rem;color:var(--fg-3);font-weight:500}.tile .ic{color:var(--hard)}.subject{display:flex;flex-direction:column;gap:12px}.subject-h{display:flex;align-items:baseline;justify-content:space-between;gap:10px;flex-wrap:wrap}.subject-h h2{font-size:1.3rem;display:flex;align-items:center;gap:10px}.dot{width:12px;height:12px;border-radius:4px;display:inline-block}.deck-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.deck-card{text-align:left;display:flex;flex-direction:column;gap:10px;padding:16px;border-radius:var(--r);border:1px solid var(--line);border-top:4px solid var(--deck, var(--accent));background:var(--surface);box-shadow:var(--shadow-1);cursor:pointer;transition:transform .15s,box-shadow .15s}.deck-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}.deck-title{font-family:var(--f-display);font-size:1.15rem;font-weight:650;line-height:1.2}.deck-counts{display:flex;gap:6px;flex-wrap:wrap}.deck-foot{display:flex;justify-content:space-between}.pill{font-size:.78rem;font-weight:700;padding:2px 9px;border-radius:99px}.pill.weak{background:color-mix(in srgb,var(--bad) 13%,transparent);color:var(--bad)}.pill.new{background:color-mix(in srgb,var(--info) 13%,transparent);color:var(--info)}.bar{height:8px;border-radius:99px;background:var(--sunken);overflow:hidden;min-width:40px}.bar i{display:block;height:100%;border-radius:99px;background:var(--accent);transition:width .3s}.boxes{display:flex;height:8px;border-radius:99px;overflow:hidden;background:var(--b0)}.boxes i{display:block;height:100%}.b0{background:var(--b0)}.b1{background:var(--b1)}.b2{background:var(--b2)}.b3{background:var(--b3)}.b4{background:var(--b5)}.legend{display:flex;flex-wrap:wrap;gap:6px 14px}.legend span{display:inline-flex;align-items:center;gap:6px}.legend i{width:10px;height:10px;border-radius:3px;display:inline-block}.lg-ok{background:var(--accent)}.lg-ko{background:color-mix(in srgb,var(--accent) 30%,var(--sunken))}.empty{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:40px 20px;border:1.5px dashed var(--line-2);border-radius:var(--r)}.empty-ic{width:54px;height:54px;border-radius:16px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center}.gear-btn{transition:background .2s,color .2s,transform .2s}.gear-btn .ic{transition:transform .6s cubic-bezier(.34,1.56,.64,1)}.gear-btn:hover{background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--accent)}.gear-btn:hover .ic{transform:rotate(120deg)}.gear-btn:active{transform:scale(.9)}.add-btn{position:relative;overflow:hidden;transition:background .2s,transform .25s cubic-bezier(.34,1.56,.64,1),box-shadow .25s}.add-btn .ic{transition:transform .45s cubic-bezier(.34,1.56,.64,1)}.add-btn:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(110deg,transparent 30%,rgb(255 255 255 / .35) 50%,transparent 70%);transform:translate(-120%);pointer-events:none}.add-btn:not([disabled]):hover{transform:translateY(-2px);box-shadow:0 8px 20px color-mix(in srgb,var(--accent) 35%,transparent)}.add-btn:not([disabled]):hover .ic{transform:rotate(90deg) scale(1.15)}.add-btn:not([disabled]):hover:after{transform:translate(120%);transition:transform .6s ease}.add-btn:not([disabled]):active{transform:translateY(0) scale(.97);box-shadow:none}.deck-head{display:flex;flex-direction:column;gap:6px;padding-left:14px;border-left:4px solid var(--deck, var(--accent))}.deck-head h1{font-size:clamp(1.6rem,3.6vw,2.3rem);font-weight:750}.deck-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.stat-row div{display:flex;flex-direction:column}.stat-row b{font-family:var(--f-display);font-size:1.6rem;font-weight:750;line-height:1.1}.stat-row span{color:var(--fg-3);font-size:.86rem}.mastery{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center}.search{display:flex;align-items:center;gap:6px;padding:0 10px;border:1px solid var(--line-2);border-radius:10px;color:var(--fg-3);min-width:0;flex:0 1 260px}.search input{border:0!important;padding:8px 0!important;outline:0!important;background:transparent!important}.chips{display:flex;gap:6px;flex-wrap:wrap}.chip-btn{border:1px solid var(--line-2);background:var(--surface);border-radius:99px;padding:5px 12px;font-weight:700;font-size:.86rem;cursor:pointer;color:var(--fg-2)}.chip-btn.on{background:var(--fg);color:var(--bg);border-color:var(--fg)}.card-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.card-list>li{border-bottom:1px solid var(--line)}.card-row{width:100%;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:12px 4px;border:0;background:none;text-align:left;cursor:pointer}.card-row:hover{background:var(--surface-2)}.card-row-q{min-width:0}.card-row-a{padding:0 4px 14px 26px;display:flex;flex-direction:column;gap:6px}.mini-opts{margin:0;padding-left:18px;color:var(--fg-2)}.mini-opts .ok{color:var(--good);font-weight:700}.st{width:10px;height:10px;border-radius:50%}.st-new{background:var(--line-2)}.st-learning{background:var(--b2)}.st-weak{background:var(--bad)}.st-mastered{background:var(--b5)}.danger-zone{flex-direction:row;align-items:center;justify-content:space-between;flex-wrap:wrap}.danger-zone h3{font-size:1rem}.study{max-width:760px;width:100%;margin:0 auto;padding:16px clamp(16px,3vw,32px) 32px;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;gap:18px}.study-top{display:flex;align-items:center;gap:10px;padding-top:env(safe-area-inset-top,0px)}.study-progress{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}.study-label{display:flex;justify-content:space-between;gap:10px}.chip{font-size:.74rem;font-weight:700;padding:3px 9px;border-radius:99px;background:var(--accent-soft);color:var(--accent);letter-spacing:.02em}.chip-soft{background:var(--sunken);color:var(--fg-2)}.chip-new{background:color-mix(in srgb,var(--info) 14%,transparent);color:var(--info)}.flash{background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-2);padding:clamp(20px,4vw,38px);display:flex;flex-direction:column;gap:18px;animation:cardIn .3s cubic-bezier(.2,.7,.2,1) both}@keyframes cardIn{0%{opacity:0;transform:translateY(10px) 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.ans{font-size:clamp(1.1rem,3vw,1.35rem);font-weight:700;line-height:1.4;white-space:pre-line}.ans-sub{font-weight:400;color:var(--fg-2)}.extra{background:var(--surface-2);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:4px;white-space:pre-line}.opts{display:flex;flex-direction:column;gap:8px}.opt{display:flex;gap:12px;align-items:center;text-align:left;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line-2);background:var(--surface);cursor:pointer;font-weight:700}.opt:not([disabled]):hover{border-color:var(--accent);background:var(--accent-soft)}.opt[disabled]{cursor:default}.opt>span:nth-child(2){flex:1}.opt-l{width:28px;height:28px;border-radius:8px;background:var(--sunken);display:grid;place-items:center;font-family:var(--f-mono);font-size:.85rem;flex:none}.opt.ok,.tf.ok{border-color:var(--good);background:color-mix(in srgb,var(--good) 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b{font-size:2.2rem;font-weight:800;line-height:1}.next-count b.word{font-size:1.15rem}.next-count small{font-size:.68rem;font-weight:700;line-height:1;text-transform:uppercase;letter-spacing:.06em;opacity:.9}.next-controle.soon .next-count{animation:nextPulse 2s ease-in-out infinite}@keyframes nextPulse{50%{box-shadow:0 0 0 8px color-mix(in srgb,var(--deck) 18%,transparent)}}@media(prefers-reduced-motion:reduce){.next-controle.soon .next-count{animation:none}}.next-body{flex:1;min-width:0}.next-body h2{font-size:1.2rem;overflow-wrap:anywhere}.next-body .eyebrow{color:var(--deck)}.next-progress{display:flex;align-items:center;gap:10px;margin-top:10px;max-width:320px}.next-progress .bar{flex:1}.next-progress .bar i{background:var(--deck)}.next-actions{flex:none;display:flex;flex-direction:column;align-items:stretch;gap:4px}.next-tip{margin-top:8px;font-size:.92rem;font-weight:650;color:var(--fg-2)}.next-tip .link{color:var(--deck);font-weight:750}.continue-btn{display:flex;align-items:center;gap:14px;width:100%;padding:12px 16px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);box-shadow:var(--shadow-1);color:var(--fg);font:inherit;text-align:left;cursor:pointer;transition:transform .15s,box-shadow .15s}.continue-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}.continue-btn>svg{color:var(--deck)}.continue-ic{flex:none;width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:var(--deck);color:#fff}.continue-txt{flex:1;min-width:0;display:flex;flex-direction:column}.continue-txt small{color:var(--fg-2);font-size:.78rem;font-weight:650}.continue-txt b{font-family:var(--f-display);font-size:1.05rem;overflow-wrap:anywhere}.done-ring{position:relative;display:grid;place-items:center;margin:0 auto 4px}.done-ring>span{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1}.done-ring b{font-size:1.6rem;font-weight:800}.done-ring small{margin-top:4px;font-size:.75rem;font-weight:650;color:var(--fg-2)}.done-ring .ring-bg{stroke:var(--sunken)}.done-ring .ring-fg{stroke:var(--accent);animation-duration:1.4s;animation-delay:.25s}.done-gain{font-weight:650;color:var(--accent)}.ring-fg{animation:ringFill 1.1s cubic-bezier(.2,.8,.2,1) both}@keyframes ringFill{0%{stroke-dashoffset:var(--ring-from)}}.subj-page .bar i,.next-controle .bar i{transform-origin:left center;animation:barGrow .9s cubic-bezier(.2,.8,.2,1) both}.chapter-list li:nth-child(2) .bar i{animation-delay:.05s}.chapter-list li:nth-child(3) .bar i{animation-delay:.1s}.chapter-list li:nth-child(n+4) .bar i{animation-delay:.15s}@keyframes barGrow{0%{transform:scaleX(0)}}@media(prefers-reduced-motion:reduce){.ring-fg,.subj-page .bar 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solid currentColor;background:var(--surface);font-weight:850;font-size:1.05rem;text-transform:uppercase;letter-spacing:.04em;opacity:0;pointer-events:none}.swipe-ok{left:20px;color:var(--good);transform:rotate(-10deg)}.swipe-bad{right:20px;color:var(--bad);transform:rotate(10deg)}.swipe-easy{top:auto;bottom:22px;left:50%;transform:translate(-50%);color:var(--info)}.card-wrap[data-swipe=right] .swipe-ok,.card-wrap[data-swipe=left] .swipe-bad,.card-wrap[data-swipe=up] .swipe-easy{opacity:var(--swipe, 0);scale:calc(.75 + var(--swipe, 0) * .25)}.card-wrap.swipeable .flash{cursor:grab;user-select:none;-webkit-user-select:none}.card-wrap.swipeable .flash button:disabled{pointer-events:none}.card-wrap.dragging,.card-wrap.dragging *{cursor:grabbing!important;-webkit-user-select:none;user-select:none}.card-wrap[data-swipe=right]{--swipe-c: var(--good)}.card-wrap[data-swipe=left]{--swipe-c: var(--bad)}.card-wrap[data-swipe=up]{--swipe-c: var(--info)}.card-wrap[data-swipe=right] 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