header.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:2px solid var(--line)}.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}.logo{display:flex;align-items:center;gap:8px;font-family:var(--f-display);font-weight:800;font-size:1.5rem;text-decoration:none;color:var(--ink)}.logo svg{width:34px;height:34px}.nav-links{display:flex;gap:22px;font-weight:600;font-size:.95rem}.nav-links a{text-decoration:none;color:var(--mute)}.nav-links a:hover{color:var(--cobalt)}@media(max-width:860px){.nav-links{display:none}}.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding-block:64px 72px}.hero h1{font-size:clamp(2.4rem,5.6vw,4.2rem);font-weight:800}.hero h1 em{font-style:normal;color:var(--cobalt);position:relative;white-space:nowrap;z-index:0}.hero h1 em:after{content:"";position:absolute;left:0;right:0;bottom:.08em;height:.22em;background:var(--sulfur);z-index:-1;border-radius:4px;transform-origin:left;animation:mark .7s .6s cubic-bezier(.2,.8,.2,1) backwards}.hero .lede{font-size:1.12rem;color:var(--mute);max-width:40ch;margin-top:20px}.hero .ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}.hero .proof{display:flex;gap:20px;flex-wrap:wrap;margin-top:28px;font-size:.9rem;color:var(--mute);font-weight:600}.hero .proof span{display:flex;align-items:center;gap:6px}.hero .proof svg{width:18px;height:18px;flex:none}.hero-copy>*{animation:slideUp .7s cubic-bezier(.2,.8,.2,1) backwards}.hero-copy>*:nth-child(2){animation-delay:.08s}.hero-copy>*:nth-child(3){animation-delay:.16s}.hero-copy>*:nth-child(4){animation-delay:.24s}.hero-copy>*:nth-child(5){animation-delay:.32s}@media(max-width:860px){.hero .wrap{grid-template-columns:1fr;gap:36px;padding-block:40px 56px}}@media(max-width:400px){.hero .ctas .btn{width:100%}}.demo{background:var(--card);border:2px solid var(--line);border-radius:28px;padding:24px;box-shadow:0 18px 0 -6px var(--line);position:relative;animation:pop .8s .2s cubic-bezier(.2,1.3,.4,1) backwards;min-width:0;margin:0}.demo-top{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:.8rem;font-weight:700;color:var(--mute);letter-spacing:.08em;text-transform:uppercase;padding-right:60px}.demo-top .tag{background:var(--ok-bg);color:var(--ok-t);padding:4px 10px;border-radius:99px;opacity:0;transition:opacity .3s;white-space:nowrap}.demo-top .tag.on{opacity:1}.eq{font-family:var(--f-mono);font-weight:700;font-size:clamp(1.2rem,3.6vw,1.9rem);text-align:center;margin:18px 0 6px;white-space:nowrap}.eq .co{display:inline-block;min-width:.7em;color:var(--cobalt)}.eq .co.bump{animation:bump .45s}.eq .op{color:var(--mute);margin:0 .25em}.mascot{position:absolute;right:-14px;top:-38px;width:84px;animation:bob 3.2s ease-in-out infinite}@media(max-width:500px){.demo{padding:18px}.mascot{width:64px;right:4px;top:-30px}}section.blk .wrap{padding-block:88px}section.blk.flat .wrap{padding-top:0}@media(max-width:600px){section.blk .wrap{padding-block:64px}}.sec-head{max-width:660px;margin-bottom:44px}.sec-head h2{font-size:clamp(2rem,4.4vw,3rem);font-weight:800;margin-top:10px}.sec-head p{color:var(--mute);margin-top:14px;font-size:1.05rem;max-width:58ch}.contrast{display:grid;gap:12px;margin-bottom:36px}.flow{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--card);border:2px solid var(--line);border-radius:18px;padding:14px 16px}.flow .who{font-weight:800;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);min-width:118px}.flow .ch{font-weight:700;padding:6px 12px;border-radius:10px;background:var(--paper);border:2px solid var(--line);font-size:.92rem}.flow .ar{color:var(--mute);font-weight:700}.flow.us{border-color:var(--cobalt);background:var(--cobalt-bg)}.flow.us .who{color:var(--cobalt)}.flow.us .ch{background:var(--card);border-color:var(--cobalt)}.flow.us .ch.hl{background:var(--sulfur);border-color:var(--sulfur-d);color:var(--sulfur-ink)}.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.step{background:var(--card);border:2px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:10px;min-width:0}.step .n{font-family:var(--f-display);font-weight:800;font-size:1.05rem;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--cobalt);color:var(--cobalt-ink)}.step.key .n{background:var(--sulfur);color:var(--sulfur-ink)}.step.key{border-color:var(--sulfur-d)}.step h3{font-size:1.25rem;font-weight:700}.step p{color:var(--mute);font-size:.93rem}.step .mini{margin-top:auto;font-size:.85rem;background:var(--paper);border-radius:12px;padding:9px 11px;border:1.5px dashed var(--line)}@media(max-width:1000px){.steps{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.steps{grid-template-columns:1fr}}.parent-blk{background:var(--ink);color:var(--paper)}.parent-blk .eyebrow{color:var(--blk-accent)}.parent-blk .sec-head p{color:color-mix(in srgb,var(--paper) 78%,transparent)}.pgrid{display:grid;grid-template-columns:1fr 380px;gap:44px;align-items:start}@media(max-width:900px){.pgrid{grid-template-columns:1fr}}.roles{display:flex;flex-direction:column;gap:14px}.role{display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:start;padding:18px;border-radius:18px;background:color-mix(in srgb,var(--paper) 7%,transparent);border:2px solid color-mix(in srgb,var(--paper) 14%,transparent)}.role .ic{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:var(--sulfur);color:var(--sulfur-ink)}.role .ic svg{width:26px;height:26px}.role h3{font-size:1.25rem}.role p{color:color-mix(in srgb,var(--paper) 78%,transparent);font-size:.95rem;margin-top:4px}.pphone{background:var(--card);color:var(--ink);border-radius:26px;padding:20px;display:flex;flex-direction:column;gap:14px;box-shadow:0 12px 0 var(--sulfur);min-width:0}.pphone .top{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--mute)}.pphone .top b{color:var(--cobalt)}.pphone h3{font-size:1.15rem}.path-blk{background:var(--cobalt);color:var(--cobalt-ink)}.path-blk .eyebrow{display:inline-block;background:var(--sulfur);color:var(--sulfur-ink);padding:4px 10px;border-radius:99px}.path-blk .sec-head p{color:color-mix(in srgb,var(--cobalt-ink) 94%,transparent)}.path-grid{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:start}@media(max-width:900px){.path-grid{grid-template-columns:1fr}}.unit{background:color-mix(in srgb,var(--cobalt-ink) 12%,transparent);border-radius:20px;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:28px;border:2px solid transparent}.unit small{display:block;font-weight:600;letter-spacing:.08em;text-transform:uppercase;font-size:.75rem}.unit b{font-family:var(--f-display);font-size:1.4rem;font-weight:700}.unit.locked{background:transparent;border:2px dashed color-mix(in srgb,var(--cobalt-ink) 45%,transparent)}.unit .btn{white-space:nowrap;flex:none}.unit.locked svg{width:26px;height:26px;flex:none}.nodes{display:flex;flex-direction:column;align-items:center;gap:18px;margin-bottom:36px;padding-top:44px}.node{--x:0px;width:76px;height:70px;border-radius:50%;border:0;cursor:pointer;position:relative;transform:translate(var(--x));background:var(--sulfur);box-shadow:0 7px 0 var(--sulfur-d);display:grid;place-items:center;transition:transform .1s,box-shadow .1s;color:var(--fix-white)}.node svg{width:34px;height:34px}.node:active{transform:translate(var(--x)) translateY(6px);box-shadow:0 1px 0 var(--sulfur-d)}.node.current.k{color:var(--sulfur-ink)}.node.done{background:var(--ok);box-shadow:0 7px 0 var(--ok-d)}.node.done:active{box-shadow:0 1px 0 var(--ok-d)}.node.locked{background:color-mix(in srgb,var(--cobalt-ink) 25%,var(--cobalt));box-shadow:0 7px color-mix(in srgb,var(--fix-black) 25%,var(--cobalt));cursor:not-allowed;color:color-mix(in srgb,var(--cobalt-ink) 60%,transparent)}.node.k{border-radius:22px}.node.current:before{content:"";position:absolute;inset:-10px;border-radius:inherit;border:4px solid var(--sulfur);animation:ring 1.8s ease-out infinite}.node .bubble{position:absolute;bottom:calc(100% + 14px);left:50%;transform:translate(-50%);background:var(--card);color:var(--cobalt);font-weight:800;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;padding:8px 12px;border-radius:12px;white-space:nowrap;border:2px solid var(--line);animation:bob 2.4s ease-in-out infinite}.node .bubble:after{content:"";position:absolute;top:100%;left:50%;margin-left:-7px;border:7px solid transparent;border-top-color:var(--card)}.node.shake{animation:shake .4s}.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.85rem;font-weight:600;margin-bottom:26px}.legend span{display:flex;align-items:center;gap:8px}.legend i{width:18px;height:18px;background:var(--sulfur);display:inline-block}.legend .lk i{border-radius:6px}.legend .lp i{border-radius:50%}.side-card{background:var(--card);color:var(--ink);border-radius:22px;padding:22px;display:flex;flex-direction:column;gap:16px;box-shadow:0 10px 0 var(--cobalt-d)}.side-card h3{font-size:1.25rem}.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat{background:var(--paper);border-radius:14px;padding:12px 6px;text-align:center;border:2px solid var(--line);min-width:0}.stat b{display:block;font-family:var(--f-display);font-size:1.6rem;line-height:1.1;font-variant-numeric:tabular-nums}.stat span{font-size:.72rem;color:var(--mute);font-weight:700;text-transform:uppercase;letter-spacing:.06em}.stat.flame b{color:var(--flame-t)}.stat.xp b{color:var(--cobalt)}.stat.card b{color:var(--sulfur-t)}.week{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;text-align:center;font-size:.72rem;font-weight:700;color:var(--mute)}.week i{display:block;width:100%;aspect-ratio:1;max-width:100%;border-radius:50%;background:var(--paper);border:2px solid var(--line);margin-bottom:4px}.week .on i{background:var(--flame);border-color:var(--flame)}.week .today i{border-color:var(--flame);border-style:dashed}.kho-top{display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap;margin-bottom:28px}.kho-top .sec-head{margin-bottom:0}.kho-count{font-family:var(--f-display);font-weight:800;font-size:1.3rem;display:flex;align-items:center;gap:12px}.kho-count .bar{width:160px;flex:none}.kho{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}@media(max-width:400px){.kho{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.kho .tile .sym{font-size:2.8rem}}.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.feat{border-radius:var(--r);padding:22px;display:flex;flex-direction:column;gap:10px;background:var(--card);border:2px solid var(--line);min-width:0;transition:transform .2s,border-color .2s;position:relative}.feat:hover{transform:translateY(-4px);border-color:var(--cobalt)}.feat .ic{width:46px;height:46px;border-radius:14px;display:grid;place-items:center}.feat .ic svg{width:26px;height:26px}.feat .ic.c1{background:var(--cobalt-bg);color:var(--cobalt)}.feat .ic.c2{background:color-mix(in srgb,var(--flame) 18%,var(--card));color:var(--flame-t)}.feat .ic.c3{background:var(--bad-bg);color:var(--bad-t)}.feat .ic.c4{background:var(--sulfur-bg);color:var(--sulfur-t)}.feat h3{font-size:1.2rem;font-weight:700}.feat p{color:var(--mute);font-size:.95rem}.soon{position:absolute;top:18px;right:18px;font-size:.7rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:4px 8px;border-radius:99px;background:var(--paper);border:1.5px dashed var(--line);color:var(--mute)}@media(max-width:960px){.feats{grid-template-columns:repeat(2,1fr)}}@media(max-width:520px){.feats{grid-template-columns:1fr}}.prices{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}.price{background:var(--card);border:2px solid var(--line);border-radius:24px;padding:28px;display:flex;flex-direction:column;gap:14px;position:relative;min-width:0}.price.hot{border-color:var(--cobalt);box-shadow:0 10px 0 var(--cobalt)}.price .flag{position:absolute;top:-14px;left:24px;background:var(--sulfur);color:var(--sulfur-ink);font-weight:800;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;padding:5px 12px;border-radius:99px}.price h3{font-size:1.4rem}.price .amt{font-family:var(--f-display);font-weight:800;font-size:2.4rem;line-height:1;font-variant-numeric:tabular-nums}.price .amt small{font-family:var(--f-body);font-size:.95rem;font-weight:600;color:var(--mute)}.price ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;color:var(--mute)}.price li{display:flex;gap:10px;align-items:flex-start}.price li:before{content:"";flex:none;width:18px;height:18px;margin-top:3px;border-radius:6px;background:var(--ok-bg);background-image:linear-gradient(135deg,transparent 45%,var(--ok) 45%,var(--ok) 60%,transparent 60%)}.price .btn{margin-top:auto}@media(max-width:900px){.prices{grid-template-columns:1fr}}@media(max-width:400px){.price{padding:22px}}.faq{display:flex;flex-direction:column;gap:12px;max-width:780px}details{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:0 20px}summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:700;font-size:1.05rem;display:flex;justify-content:space-between;gap:16px}summary::-webkit-details-marker{display:none}summary:after{content:"+";font-family:var(--f-display);font-size:1.6rem;line-height:1;color:var(--cobalt);transition:transform .25s}details[open] summary:after{transform:rotate(45deg)}details p{color:var(--mute);padding-bottom:18px;max-width:65ch}details[open] p{animation:rise .35s ease}.final{background:var(--sulfur);color:var(--sulfur-ink)}.final .wrap{padding-block:80px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}.final h2{font-size:clamp(2rem,4.6vw,3.2rem);font-weight:800;max-width:16ch}.final p{margin-top:12px;font-size:1.05rem;max-width:44ch}footer.site .wrap{padding-block:32px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--mute);font-size:.9rem}@media(prefers-reduced-motion:no-preference){@supports (animation-timeline:view()){.rv{animation:rv linear both;animation-timeline:view();animation-range:entry 0% entry 45%}}}.lesson{position:fixed;inset:0;z-index:50;background:var(--paper);display:flex;flex-direction:column;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);transform:translateY(100%);transition:transform .5s cubic-bezier(.2,.9,.25,1),visibility .5s;visibility:hidden}.lesson.open{transform:none;visibility:visible}.l-top{display:flex;align-items:center;gap:16px;max-width:780px;width:100%;margin:0 auto;padding:18px max(16px,env(safe-area-inset-right,0px)) 10px max(16px,env(safe-area-inset-left,0px))}.x{width:40px;height:40px;border-radius:12px;border:0;background:transparent;color:var(--mute);cursor:pointer;display:grid;place-items:center;flex:none}.x:hover{background:var(--card)}.hearts{display:flex;align-items:center;gap:6px;font-weight:800;color:var(--bad-t);font-variant-numeric:tabular-nums;flex:none}.hearts svg{width:24px;height:24px;color:var(--bad)}.hearts.hit{animation:shake .45s}.ksteps{flex:1;display:flex;gap:6px;min-width:0}.ksteps span{flex:1;min-width:0;text-align:center;font-size:.72rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;padding:6px 2px;border-radius:10px;background:var(--line);color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background .3s,color .3s}.ksteps span.done{background:var(--ok-d);color:var(--fix-white)}.ksteps span.cur{background:var(--cobalt);color:var(--cobalt-ink)}@media(max-width:420px){.ksteps span{font-size:.62rem;letter-spacing:0}.l-top{gap:10px}}.kxp{font-weight:800;color:var(--sulfur-t);font-variant-numeric:tabular-nums;flex:none;display:flex;gap:4px;align-items:center}.kxp svg{width:20px;height:20px}.kxp.bump{animation:bump .45s}.stage{flex:1;overflow-y:auto;overflow-x:hidden;position:relative;overscroll-behavior:contain}.q{max-width:780px;margin:0 auto;padding:24px max(16px,env(safe-area-inset-right,0px)) 40px max(16px,env(safe-area-inset-left,0px));display:flex;flex-direction:column;gap:22px}.q.in{animation:slideIn .45s cubic-bezier(.2,.9,.25,1) backwards}.q.out{animation:slideOut .3s ease forwards}.q .kind{font-weight:800;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--cobalt);display:flex;align-items:center;gap:8px}.q .kind svg{width:18px;height:18px;flex:none}.q .kind.y{color:var(--sulfur-t)}.q h2{font-size:clamp(1.4rem,3.8vw,2.1rem);font-weight:700}.q h2:focus{outline:none}.sublbl{font-weight:800;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);margin-bottom:-12px}.opts{display:grid;gap:12px}.opts.row{grid-template-columns:repeat(3,1fr)}@media(max-width:620px){.opts.row{grid-template-columns:1fr}}.opt{display:flex;align-items:center;gap:14px;text-align:left;font:600 1.05rem/1.3 var(--f-body);color:var(--ink);background:var(--card);border:2px solid var(--line);border-bottom-width:5px;border-radius:16px;padding:15px 16px;cursor:pointer;transition:transform .08s,border-color .15s,background .15s;min-width:0}.opt:active{transform:translateY(3px)}.opt .k{flex:none;width:30px;height:30px;border-radius:9px;border:2px solid var(--line);display:grid;place-items:center;font-size:.85rem;color:var(--mute);font-weight:700}.opt.sel{border-color:var(--cobalt);background:var(--cobalt-bg)}.opt.sel .k{border-color:var(--cobalt);color:var(--cobalt)}.opt.psel{border-color:var(--sulfur-d);background:var(--sulfur-bg)}.opt.psel .k{border-color:var(--sulfur-d);color:var(--sulfur-t)}.opt.good{border-color:var(--ok)!important}.opt.wrong{border-color:var(--bad)!important}.opt .f{font-family:var(--f-mono);font-weight:700}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{font:700 .9rem/1 var(--f-body);padding:10px 14px;border-radius:99px;border:2px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer}.chip.sel{background:var(--cobalt);border-color:var(--cobalt);color:var(--cobalt-ink)}.modes{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media(max-width:600px){.modes{grid-template-columns:1fr}}.mode{display:flex;flex-direction:column;gap:10px;text-align:left;font:inherit;color:var(--ink);background:var(--card);border:2px solid var(--line);border-bottom-width:6px;border-radius:20px;padding:20px;cursor:pointer;transition:border-color .15s,background .15s,transform .1s}.mode:active{transform:translateY(3px)}.mode svg.mi{width:64px;height:64px}.mode svg.mi.fam{color:var(--sulfur-t)}.mode h3{font-size:1.35rem}.mode p{color:var(--mute);font-size:.95rem}.mode.sel{border-color:var(--cobalt);background:var(--cobalt-bg)}.balbox{display:flex;flex-direction:column;gap:18px}.terms{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 8px;background:var(--card);border:2px solid var(--line);border-radius:22px;padding:18px 10px}.term{display:flex;align-items:center;gap:6px}.stp{display:flex;flex-direction:column;align-items:center;gap:4px}.stp button{width:38px;height:30px;border-radius:10px;border:2px solid var(--line);border-bottom-width:4px;background:var(--paper);color:var(--cobalt);font:800 1.1rem/1 var(--f-body);cursor:pointer}.stp button:active{border-bottom-width:2px;transform:translateY(2px)}.stp output{font-family:var(--f-mono);font-weight:700;font-size:1.5rem;color:var(--cobalt);min-width:1.4em;text-align:center;display:block}.stp output.bump{animation:bump .35s}.term .f{font-family:var(--f-mono);font-weight:700;font-size:1.4rem}.terms .op{font-family:var(--f-mono);font-weight:700;color:var(--mute);font-size:1.3rem}@media(max-width:420px){.term .f{font-size:1.15rem}.stp button{width:34px}}.atoms{width:100%;border-collapse:separate;border-spacing:0 6px;font-variant-numeric:tabular-nums}.atoms th{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);text-align:center;font-weight:700}.atoms td{text-align:center;font-family:var(--f-mono);font-weight:700;font-size:1.05rem;padding:8px;background:var(--card);border-top:2px solid var(--line);border-bottom:2px solid var(--line)}.atoms td:first-child{border-left:2px solid var(--line);border-radius:12px 0 0 12px}.atoms td:last-child{border-right:2px solid var(--line);border-radius:0 12px 12px 0}.atoms .st{font-family:var(--f-body);font-size:.8rem;border-radius:99px;padding:3px 10px;display:inline-block}.atoms .st.eq{background:var(--ok-bg);color:var(--ok-t)}.atoms .st.ne{background:var(--bad-bg);color:var(--bad-t)}.q .scale{max-width:420px;margin:0 auto}.jar{display:flex;justify-content:center}.jar svg{width:100%;max-width:300px;height:auto}.jar text{font-family:var(--f-mono);font-weight:700}.sim{position:relative;height:260px;background:var(--card);border:2px solid var(--line);border-radius:22px;overflow:hidden}.atom{position:absolute;transform:translate(-50%,-50%);border-radius:50%;display:grid;place-items:center;font-family:var(--f-mono);font-weight:700;transition:left 1.2s cubic-bezier(.5,0,.2,1),top 1.2s cubic-bezier(.5,0,.2,1);z-index:2}.atom.C{width:38px;height:38px;background:var(--ink);color:var(--paper);font-size:1rem}.atom.O{width:34px;height:34px;background:var(--bad);color:var(--fix-white);font-size:.95rem}.atom.H{width:24px;height:24px;background:var(--atomH);color:var(--fix-navy);border:2px solid var(--ink);font-size:.72rem}.glab{position:absolute;bottom:14px;transform:translate(-50%);font-family:var(--f-mono);font-weight:700;font-size:1rem;color:var(--mute);transition:opacity .3s;white-space:nowrap}.glow{position:absolute;inset:0;background:radial-gradient(circle at 45% 50%,var(--sulfur) 0,transparent 55%);opacity:0;z-index:1;pointer-events:none}.glow.on{animation:flash 1.3s ease}.lcd{position:absolute;top:12px;right:12px;font-family:var(--f-mono);font-weight:700;font-size:.9rem;background:var(--fix-navy);color:var(--sulfur);padding:5px 10px;border-radius:8px;z-index:3}.lcd.blink{animation:bump .5s}.simbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.simbar .btn svg{width:18px;height:18px}.tally{display:flex;gap:8px;flex-wrap:wrap}.tally span{font-family:var(--f-mono);font-weight:700;font-size:.9rem;padding:6px 10px;border-radius:10px;background:var(--card);border:2px solid var(--line)}.tally span.eq{background:var(--ok-bg);border-color:var(--ok);color:var(--ok-t)}.ideas{display:flex;flex-direction:column;gap:10px}.idea{display:grid;grid-template-columns:40px 1fr;gap:12px;align-items:start;background:var(--card);border:2px solid var(--line);border-radius:16px;padding:14px}.idea b.n{width:40px;height:40px;border-radius:12px;background:var(--cobalt);color:var(--cobalt-ink);display:grid;place-items:center;font-family:var(--f-display);font-size:1.1rem}.idea p{font-size:.98rem}.idea .ex{display:block;font-family:var(--f-mono);font-size:.9rem;color:var(--mute);margin-top:4px}.why{border:2px dashed var(--cobalt);border-radius:16px;padding:14px 16px;background:var(--cobalt-bg)}.why b{color:var(--cobalt)}.tip{border:2px dashed var(--sulfur-d);border-radius:16px;padding:14px 16px;background:var(--sulfur-bg);font-size:.95rem}.tip b{color:var(--sulfur-t)}textarea,input.txt{width:100%;font:500 1rem/1.5 var(--f-body);color:var(--ink);background:var(--card);border:2px solid var(--line);border-radius:16px;padding:14px 16px;resize:vertical}textarea:focus,input.txt:focus{outline:none;border-color:var(--cobalt);box-shadow:0 0 0 3px var(--cobalt-bg)}.chat{display:flex;flex-direction:column;gap:12px}.msg{max-width:88%;padding:12px 16px;border-radius:18px;font-size:.98rem;animation:rise .35s ease;overflow-wrap:anywhere}.msg.me{align-self:flex-end;background:var(--cobalt);color:var(--cobalt-ink);border-bottom-right-radius:6px}.msg.bot{align-self:flex-start;display:flex;gap:10px;align-items:flex-start;max-width:92%;padding:0}.msg.bot svg{width:44px;flex:none}.msg.bot .bb{background:var(--card);border:2px solid var(--line);border-radius:18px 18px 18px 6px;padding:12px 16px;min-width:0}.msg.bot .bb b{color:var(--cobalt)}.msg.bot .src{display:block;margin-top:6px;font-size:.75rem;color:var(--mute)}.dots{display:inline-flex;gap:4px}.dots i{width:7px;height:7px;border-radius:50%;background:var(--mute);animation:dot 1s infinite}.dots i:nth-child(2){animation-delay:.15s}.dots i:nth-child(3){animation-delay:.3s}.sendrow{display:flex;gap:10px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-top:10px}.sendrow .hint{flex:1;min-width:0}.l-foot{border-top:2px solid var(--line);background:var(--paper);transition:background .25s,border-color .25s}.l-foot .in{max-width:780px;margin:0 auto;padding:18px max(16px,env(safe-area-inset-right,0px)) 22px max(16px,env(safe-area-inset-left,0px));display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.fb{display:flex;gap:14px;align-items:center;min-width:0;flex:1}.fb:empty{display:none}.fb .badge{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--card);flex:none}.fb .badge svg{width:30px;height:30px}.fb h3{font-size:1.35rem}.fb p{font-size:.95rem;margin-top:2px}.l-foot.ok{background:var(--ok-bg);border-color:transparent}.l-foot.ok .fb{color:var(--ok-t)}.l-foot.bad{background:var(--bad-bg);border-color:transparent}.l-foot.bad .fb{color:var(--bad-t)}.l-foot.info{background:var(--cobalt-bg);border-color:transparent}.l-foot.info .fb{color:var(--cobalt)}.l-foot .fb .ic-ok{color:var(--ok)}.l-foot .fb .ic-bad{color:var(--bad)}.l-foot .fb .ic-info{color:var(--cobalt)}.l-foot.ok .fb,.l-foot.bad .fb,.l-foot.info .fb{animation:rise .3s ease}.l-foot .btn{min-width:190px;margin-left:auto}@media(max-width:520px){.l-foot .btn{width:100%}.fb .badge{width:44px;height:44px}.fb h3{font-size:1.15rem}}.done-scr{max-width:560px;margin:0 auto;padding:36px max(16px,env(safe-area-inset-right,0px)) 40px max(16px,env(safe-area-inset-left,0px));text-align:center;display:flex;flex-direction:column;align-items:center;gap:18px}.done-scr svg.m{width:130px;animation:pop .7s cubic-bezier(.2,1.4,.4,1)}.done-scr h2{font-size:2.3rem;font-weight:800;color:var(--sulfur-t)}.done-scr h2.fail{color:var(--bad-t)}.done-scr .streak{display:flex;gap:8px;align-items:center;font-weight:700;color:var(--flame-t)}.done-scr .streak svg{width:22px;height:22px}.res{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%}.res div{border-radius:16px;border:2px solid;overflow:hidden;animation:pop .5s cubic-bezier(.2,1.4,.4,1) backwards;min-width:0}.res div:nth-child(2){animation-delay:.12s}.res div:nth-child(3){animation-delay:.24s}.res small{display:block;font-weight:800;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;padding:6px;color:var(--fix-white)}.res b{display:block;font-family:var(--f-display);font-size:1.6rem;padding:10px 4px;background:var(--card);font-variant-numeric:tabular-nums}.res .a{border-color:var(--sulfur)}.res .a small{background:var(--sulfur);color:var(--sulfur-ink)}.res .b{border-color:var(--ok-d)}.res .b small{background:var(--ok-d)}.res .c{border-color:var(--cobalt)}.res .c small{background:var(--cobalt);color:var(--cobalt-ink)}@media(max-width:400px){.res b{font-size:1.25rem}}.flip{perspective:900px;width:190px;max-width:100%;aspect-ratio:3/4}.flip-in{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform 1s cubic-bezier(.3,1.3,.5,1)}.flip.on .flip-in{transform:rotateY(180deg)}.flip .tile{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;cursor:default}.flip .tile:hover{transform:none}.flip .back{transform:rotateY(180deg)}@media(prefers-reduced-motion:reduce){.flip.on .front{visibility:hidden}.flip.on .back,.flip.on .flip-in{transform:none}}