nav.navbar{position:sticky;top:0;z-index:100;background-color:inherit;padding:.85rem clamp(1rem,4vw,1.5rem);display:flex;justify-content:space-between;align-items:center;transition:top .3s ease-in-out}.navbar.hidden{top:-80px}.logo{display:inline-flex;align-items:center;gap:.5rem;text-decoration:none;color:inherit;font-weight:700;font-size:1.2rem}.logo-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background-color:var(--light-accent);color:var(--on-light-accent);font-size:.85rem;letter-spacing:.02em}body.dark 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span{position:absolute;font-size:1.5rem;animation:mascot-burst-fly 1s ease-out forwards}@keyframes mascot-bob{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes mascot-shadow-pulse{0%,to{transform:translate(-50%) scale(1);opacity:.55}50%{transform:translate(-50%) scale(.86);opacity:.35}}@keyframes mascot-sway{0%,to{transform:rotate(-16deg)}50%{transform:rotate(-4deg)}}@keyframes mascot-blink{0%,92%,96%,to{transform:scaleY(1)}94%,98%{transform:scaleY(.08)}}@keyframes mascot-squash{0%{transform:scale(1)}22%{transform:scale(1.18,.78) translateY(6%)}45%{transform:scale(.88,1.2) translateY(-14%)}68%{transform:scale(1.08,.94) translateY(2%)}to{transform:scale(1)}}@keyframes mascot-burst-fly{0%{opacity:0;transform:rotate(var(--burst-angle)) translateY(0) rotate(calc(-1 * var(--burst-angle))) scale(.3)}20%{opacity:1}to{opacity:0;transform:rotate(var(--burst-angle)) translateY(calc(-1 * var(--burst-distance))) rotate(calc(-1 * var(--burst-angle))) 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var(--dark-accent)}.level-bar-track{flex:1;height:12px;min-width:80px;border-radius:999px;background:var(--lb-track);overflow:hidden}.level-bar-fill{display:block;height:100%;border-radius:inherit;background:var(--lb-fill);transition:width .9s cubic-bezier(.2,.9,.3,1)}.level-bar-count{font-size:.85rem;opacity:.8;white-space:nowrap}@media(prefers-reduced-motion:reduce){.level-bar-fill{transition:none}}.week-dots{--wd-ink: var(--light-text);--wd-empty: rgba(34, 24, 28, .08);--wd-ring: var(--light-accent);display:flex;justify-content:center;gap:.4rem;margin:.8rem 0 0;padding:0;list-style:none;color:var(--wd-ink)}body.dark .week-dots{--wd-ink: var(--dark-text);--wd-empty: rgba(246, 232, 234, .12);--wd-ring: var(--dark-accent)}.week-dot{display:grid;justify-items:center;gap:.2rem;font-size:.75rem;font-weight:700}.week-dot-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--wd-empty);font-size:1.05rem}.week-dot.is-today .week-dot-mark{box-shadow:inset 0 0 0 3px var(--wd-ring)}.home-achievements{padding:0 16px}.home-ach-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem}.home-ach-card{display:grid;align-content:start;gap:.35rem;padding:1.1rem 1.2rem;border:2px solid var(--home-card-edge);border-radius:22px;background:var(--home-card);color:var(--home-ink);text-decoration:none;box-shadow:0 6px 18px var(--panel-shadow)}a.home-ach-card:focus-visible{outline:3px solid var(--home-focus);outline-offset:3px}.home-ach-news{grid-template-columns:auto 1fr auto;align-items:center;gap:.8rem;margin-bottom:1rem;border-color:var(--home-accent)}.home-ach-news-icon{font-size:2.2rem;animation:home-ach-wiggle 1.6s ease-in-out infinite}.home-ach-go{font-weight:800;white-space:nowrap}.home-ach-eyebrow{margin:0;color:var(--home-muted);font-weight:700;letter-spacing:.04em}.home-ach-big{margin:0;font-size:1.5rem;font-weight:800}.home-ach-note{margin:0;color:var(--home-muted)}.home-ach-level{margin-top:.6rem}.home-ach-latest{display:flex;align-items:center;gap:.5rem;margin:.4rem 0 0;font-weight:700}.home-ach-sticker{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--home-card-edge);font-size:1.5rem}@keyframes home-ach-wiggle{0%,to{transform:rotate(0)}50%{transform:rotate(-10deg) scale(1.08)}}@media(max-width:560px){.home-ach-news{grid-template-columns:auto 1fr}.home-ach-go{grid-column:1 / -1}}@media(prefers-reduced-motion:reduce){.home-ach-news-icon{animation:none}}.home-page{--home-ink: var(--light-text);--home-muted: #645057;--home-card: var(--light-panel);--home-card-edge: #f0dde0;--home-sky-top: #ffe3e7;--home-sky-bottom: #f8ecee;--home-glyph: rgba(239, 98, 108, .28);--home-accent: var(--light-accent);--home-on-accent: var(--on-light-accent);--home-focus: #22181C;--home-cta: #c33d47;--home-on-cta: #ffffff;--home-accent-shade: #92262f;--home-hue-math: #ef626c;--home-hue-english: #9f91e8;--home-hue-geography: #2fa898;--home-hue-science: #e39a24;--home-deep-math: #c33d47;--home-deep-english: #5e4eb8;--home-deep-geography: #1f7d70;--home-deep-science: #8f5900;--home-on-deep: #ffffff;padding:0 1rem 4rem;color:var(--home-ink);background-color:var(--light-bg);overflow-x:clip}body.dark .home-page{--home-ink: var(--dark-text);--home-muted: #c8b9bd;--home-card: var(--dark-panel);--home-card-edge: #46403f;--home-sky-top: #33262c;--home-sky-bottom: #241a1e;--home-glyph: rgba(132, 220, 207, .24);--home-accent: var(--dark-accent);--home-on-accent: var(--on-dark-accent);--home-focus: #84DCCF;--home-cta: #1f7d70;--home-on-cta: #ffffff;--home-accent-shade: #13544b;background-color:var(--dark-bg)}.reveal-armed{opacity:0;transform:translateY(26px) scale(.98);transition:opacity .52s ease-out,transform .52s cubic-bezier(.22,1.2,.36,1)}.reveal-armed.is-revealed{opacity:1;transform:none}.home-hero{position:relative;max-width:1150px;margin:0 auto;padding:clamp(1.5rem,5vw,3.5rem) clamp(1rem,4vw,3rem) clamp(2rem,5vw,3rem);border-radius:0 0 40px 40px;background:linear-gradient(180deg,var(--home-sky-top),var(--home-sky-bottom));overflow:hidden;isolation:isolate}@media(max-width:720px){.home-page{padding-inline:.75rem}.home-hero{margin-inline:-.75rem;padding-top:3rem;border-radius:0 0 32px 32px}}.home-sky{position:absolute;inset:0;z-index:-1;pointer-events:none}.home-glyph{position:absolute;color:var(--home-glyph);font-weight:700;line-height:1;animation-name:home-drift;animation-timing-function:ease-in-out;animation-iteration-count:infinite}.home-hero-inner{display:flex;align-items:center;justify-content:center;gap:clamp(1rem,4vw,3rem)}.home-hero-copy{flex:1 1 380px;max-width:560px}@media(max-width:760px){.home-hero-inner{flex-direction:column-reverse;text-align:center}.home-hero-copy{flex-basis:auto}.home-hero-inner.is-signed-in{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;column-gap:.6rem;row-gap:.2rem}.home-hero-inner.is-signed-in .home-hero-copy{display:contents}.home-hero-inner.is-signed-in .home-hello{grid-column:1;grid-row:1;justify-self:start;margin-bottom:0}.home-hero-inner.is-signed-in .home-hero-mascot{grid-column:2;grid-row:1}.home-hero-inner.is-signed-in .mascot{width:clamp(88px,24vw,130px)}.home-hero-inner.is-signed-in .home-progress,.home-hero-inner.is-signed-in .home-hero-actions{grid-column:1 / -1}}.home-hello{display:inline-flex;align-items:center;gap:.6rem;margin:0 0 .6rem;padding:.35rem .9rem .35rem .35rem;border-radius:999px;background:var(--home-card);box-shadow:0 4px 14px var(--panel-shadow);font-size:1.15rem;font-weight:700}.home-hello-avatar{display:grid;place-items:center;width:2.4rem;height:2.4rem;border-radius:50%;font-size:1.3rem}.home-hello-name span{display:inline-block;animation:home-letter-in .52s cubic-bezier(.22,1.4,.36,1) both;animation-delay:calc(var(--letter-index) * 45ms)}.home-title{margin:.2rem 0 .6rem;color:var(--home-ink);font-size:clamp(2rem,6.5vw,3.4rem);line-height:1.1}.home-subtitle{margin:0 0 1.4rem;max-width:34ch;color:var(--home-muted);font-size:clamp(1rem,2.4vw,1.2rem)}@media(max-width:760px){.home-subtitle{margin-inline:auto}}.home-hero-actions{display:flex;flex-wrap:wrap;gap:.8rem}@media(max-width:760px){.home-hero-actions{flex-wrap:wrap;justify-content:center}.home-btn-big{flex:1 0 100%;justify-content:center}.home-btn-quiet{flex:1 1 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p{margin:0}.home-progress-topic{font-size:1.15rem;font-weight:700}.home-progress-count{color:var(--home-muted);font-size:.95rem}.home-eyebrow{margin:0;color:var(--home-muted);font-size:.85rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}.home-ring{flex:none;width:clamp(76px,18vw,94px);height:auto}.home-ring-track{fill:none;stroke:var(--home-card-edge);stroke-width:11}.home-ring-fill{fill:none;stroke:var(--home-accent);stroke-width:11;stroke-linecap:round;transform:rotate(-90deg);transform-origin:50% 50%;transition:stroke-dashoffset 1.1s cubic-bezier(.2,.9,.3,1)}.home-ring-text{fill:var(--home-ink);font-size:1.5rem;font-weight:700;text-anchor:middle;dominant-baseline:central}.home-section{max-width:1150px;margin:clamp(2.5rem,7vw,4.5rem) auto 0}.home-section-title{margin:0 0 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var(--celebration-surface);border-radius:50%;background:var(--celebration-accent);color:var(--celebration-on-accent);font-size:1.5rem;font-weight:800;animation:completion-medal-in .58s .3s cubic-bezier(.2,1.5,.5,1) both}.celebration-streak{display:flex;align-items:center;justify-content:center;gap:.3rem;margin:1rem auto .4rem}.celebration-streak-flame{font-size:clamp(4rem,12vw,5.5rem);line-height:1;animation:completion-medal-in .58s cubic-bezier(.2,1.5,.5,1) both}.celebration-streak-count{font-size:clamp(3rem,9vw,4.2rem);font-weight:800;color:var(--celebration-ink)}@media(prefers-reduced-motion:reduce){.celebration-xp-gain,.celebration-level-badge,.celebration-streak-flame{animation:celebration-fade .3s ease both}}.progress-error{padding:1.5rem;text-align:center;color:var(--light-text)}.progress-error p{margin-bottom:1rem}.progress-error button{min-height:56px;padding:.7rem 2rem;font:inherit;font-weight:700;color:var(--light-text);background:var(--light-bg);border:2px solid 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var(--map-muted);--au-danger: var(--danger-text);--au-shadow: var(--panel-shadow);--au-sky-top: #ffe3e7;--au-sky-bottom: #f8ecee;--au-glyph: rgba(239, 98, 108, .26);--au-cta: #c33d47;--au-on-cta: #ffffff;--au-cta-shade: #92262f;--au-soft: rgba(239, 98, 108, .1);--au-good: #1a6b46;--au-step-distance: 34px;position:relative;isolation:isolate;overflow:hidden;min-height:calc(100dvh - var(--navbar-height));display:flex;align-items:flex-start;justify-content:center;padding:clamp(1.25rem,5vw,3rem) 1rem 3rem;color:var(--au-text);background:linear-gradient(180deg,var(--au-sky-top),var(--au-sky-bottom))}body.dark .auth-page{--au-bg: var(--dark-bg);--au-text: var(--dark-text);--au-panel: var(--dark-panel);--au-accent: var(--dark-accent);--au-on-accent: var(--on-dark-accent);--au-sky-top: #33262c;--au-sky-bottom: #241a1e;--au-glyph: rgba(132, 220, 207, .22);--au-cta: #1f7d70;--au-on-cta: #ffffff;--au-cta-shade: #13544b;--au-soft: rgba(132, 220, 207, .12);--au-good: #7fdba8}.auth-page .auth-sky{position:absolute;inset:0;z-index:-1;pointer-events:none}.auth-page .auth-glyph{position:absolute;color:var(--au-glyph);font-weight:700;line-height:1;animation-name:auth-drift;animation-timing-function:ease-in-out;animation-iteration-count:infinite}.auth-page .reveal-armed{opacity:0;transform:translateY(20px) scale(.98);transition:opacity .46s ease-out,transform .46s cubic-bezier(.22,1.2,.36,1)}.auth-page .reveal-armed.is-revealed{opacity:1;transform:none}.auth-page .auth-card{position:relative;width:100%;background-color:var(--au-panel);border-radius:22px;padding:clamp(1.5rem,4vw,2.25rem) clamp(1.1rem,4vw,1.9rem);box-shadow:0 10px 30px var(--au-shadow);animation:auth-card-in .52s cubic-bezier(.22,1.2,.36,1) both}.auth-page .auth-card.is-narrow{max-width:27rem}.auth-page .auth-card.is-wide{max-width:40rem}.auth-page .auth-title{font-size:clamp(1.45rem,4.5vw,1.8rem);line-height:1.2;margin-bottom:.45rem;color:var(--au-text)}.auth-page .auth-intro{font-size:.95rem;color:var(--au-muted);margin-bottom:1.4rem}.auth-page .auth-form{display:grid;gap:1.1rem}.auth-page .auth-field{display:grid;gap:.35rem}.auth-page .auth-label{font-weight:600;font-size:.95rem}.auth-page .auth-input{width:100%;min-height:48px;padding:.6rem .75rem;border-radius:12px;border:2px solid var(--au-border);background-color:var(--au-panel);color:var(--au-text);font:inherit;transition:border-color .2s,box-shadow .2s}.auth-page .auth-input:focus{outline:none;border-color:var(--au-accent);box-shadow:0 0 0 4px var(--au-soft)}.auth-page .auth-input.invalid{border-color:var(--au-danger)}.auth-page .auth-input-wrap{position:relative;display:flex}.auth-page .auth-input-wrap .auth-input{padding-inline-end:3.6rem}.auth-page .auth-peek{position:absolute;inset-block:0;inset-inline-end:.3rem;min-width:44px;border:none;border-radius:10px;background:none;color:var(--au-muted);font-size:1.15rem;cursor:pointer}.auth-page .auth-peek:hover,.auth-page 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.auth-btn{min-height:64px}.auth-page .sf .auth-input{min-height:56px}.auth-page .sf .auth-input-wrap .auth-input{padding-inline-end:4.2rem}.auth-page .sf .auth-peek{min-width:56px;min-height:48px}.auth-page .sf-cards{display:grid;grid-template-columns:1fr;gap:.75rem}.auth-page .sf-card{position:relative;min-height:64px;padding:.9rem 2.75rem .9rem 1rem;border-radius:1rem;text-align:left;display:grid;grid-template-columns:auto 1fr;column-gap:.75rem;align-items:center;border:2px solid var(--au-border);background:var(--au-panel);color:var(--au-text);font:inherit;cursor:pointer;transition:transform .16s cubic-bezier(.22,1.2,.36,1),border-color .16s ease}.auth-page .sf-card:active{transform:scale(.96)}.auth-page .sf-card:focus-visible{outline:3px solid var(--au-accent);outline-offset:2px}.auth-page .sf-card.is-chosen{border-color:var(--au-accent)}.auth-page .sf-card-icon{grid-row:span 2;font-size:2rem}.auth-page .sf-card-title{font-size:1.15rem;font-weight:700}.auth-page .sf-card-blurb{color:var(--au-muted);font-size:.95rem}.auth-page .sf-card-check{position:absolute;top:.5rem;right:.6rem;width:1.6rem;height:1.6rem;border-radius:50%;display:grid;place-items:center;background:var(--au-accent);color:var(--au-on-accent);transform:scale(0);transition:transform .22s cubic-bezier(.22,1.6,.36,1)}.auth-page .sf-card.is-chosen .sf-card-check{transform:scale(1)}@media(min-width:640px){.auth-page .sf-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.auth-page .sf-cards:has(>:nth-child(5)){grid-template-columns:repeat(3,minmax(0,1fr))}}.auth-page .sf-wheel{position:relative;height:16rem;overflow-y:auto;scroll-snap-type:y mandatory;margin:0;padding:6rem 0;list-style:none;border:2px solid var(--au-border);border-radius:1rem;background:var(--au-panel);-webkit-mask-image:linear-gradient(transparent,black 30%,black 70%,transparent);mask-image:linear-gradient(transparent,black 30%,black 70%,transparent)}.auth-page 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.sf-code-box{border-style:dashed;border-color:var(--au-accent)}.auth-page .sf-continue{position:sticky;bottom:calc(env(safe-area-inset-bottom,0px) + .75rem)}.auth-page .sf-continue .auth-btn{width:100%;min-height:64px;font-size:1.15rem}.auth-page .sf-handover{text-align:center;display:grid;gap:1.25rem;justify-items:center}.auth-page .sf-handover-face{width:9rem;height:9rem;border-radius:50%;display:grid;place-items:center;font-size:5rem;background:var(--sf-face, var(--au-bg))}.auth-page .sf-handover .auth-btn{min-height:80px;font-size:1.4rem;padding-inline:2rem;animation:sf-pulse 1.6s ease-in-out infinite}@keyframes sf-pulse{50%{transform:scale(1.05)}}.auth-page .su-strength{font-weight:600;transition:color .2s ease}.auth-page .su-strength.is-short{color:var(--au-danger)}.auth-page .su-strength.is-strong,.auth-page .su-strength.is-good{color:var(--au-good)}.auth-page .sf-summary{display:grid;gap:.75rem;margin:0;padding:0;list-style:none}.auth-page .sf-add{margin-top:1.5rem}.auth-page .sf-summary-card{display:grid;grid-template-columns:auto 1fr auto;gap:.75rem;align-items:center;padding:.75rem;border-radius:1rem;border:2px solid var(--au-border)}@media(min-width:900px){.auth-page .sf{grid-template-columns:9rem minmax(0,1fr);column-gap:1.5rem}.auth-page .sf>:not(.sf-bix){grid-column:2}.auth-page .sf-bix{grid-column:1;grid-row:1 / span 4;flex-direction:column;align-self:start}.auth-page .sf-bix-mascot{zoom:.8}.auth-page .sf-cards:has(>:nth-child(5)){grid-template-columns:repeat(2,minmax(0,1fr))}.auth-page .sf-bubble{border-radius:1rem}}@media(prefers-reduced-motion:reduce){.auth-page .sf-panel,.auth-page .sf-panel[data-direction=back]{animation:sf-fade .2s ease both}.auth-page .sf-family-face,.auth-page .sf-handover .auth-btn,.auth-page .sf-code.is-invalid{animation:none}.auth-page .su-strength,.auth-page .sf-card,.auth-page .sf-card-check,.auth-page .sf-star{transition:none}}@keyframes sf-fade{0%{opacity:0}to{opacity:1}}.floating-glyph-page{--fg-top: 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.floating-glyph:nth-child(2){--fg-mobile-top: 2rem;--fg-mobile-left: 35%}.floating-glyph-page .floating-glyph:nth-child(3){--fg-mobile-top: .9rem;--fg-mobile-left: 64%}.floating-glyph-page .floating-glyph:nth-child(4){--fg-mobile-top: 1.8rem;--fg-mobile-left: 86%}}@media(prefers-reduced-motion:reduce){.floating-glyph-page .floating-glyph{animation:none}}.profiles-page{--pf-text: var(--light-text);--pf-panel: var(--light-panel);--pf-accent: var(--light-accent);--pf-on-accent: var(--on-light-accent);--pf-border: var(--map-border);--pf-muted: var(--map-muted);--pf-danger: var(--danger-text);--pf-shadow: var(--panel-shadow);--pf-on-colour: var(--on-light-accent);--pf-card-size: 11.5rem;min-height:calc(100dvh - var(--navbar-height));padding:2rem 1rem 3rem;color:var(--pf-text);text-align:center}body.dark .profiles-page{--pf-text: var(--dark-text);--pf-panel: var(--dark-panel);--pf-accent: var(--dark-accent);--pf-on-accent: var(--on-dark-accent)}.profiles-page .profiles-header{margin-bottom:2rem}.profiles-page .profiles-title{font-size:2.2rem;color:var(--pf-text);margin-bottom:.4rem}.profiles-page .profiles-subtitle{font-size:1.15rem;opacity:.9}.profiles-page .profiles-loading{font-size:1.2rem;padding:3rem 1rem}.profiles-page .profiles-signedout{max-width:28rem;margin:0 auto;background-color:var(--pf-panel);border-radius:20px;padding:2rem 1.5rem;box-shadow:0 4px 14px var(--pf-shadow)}.profiles-page .profiles-signin-link{display:inline-flex;align-items:center;justify-content:center;margin-top:1.25rem;min-height:48px;padding:0 1.4rem;border-radius:12px;font-weight:700;background-color:var(--pf-accent);color:var(--pf-on-accent)}.profiles-page .profiles-signin-link:hover,.profiles-page .profiles-signin-link:focus-visible{filter:brightness(1.08)}.profiles-page .profiles-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(var(--pf-card-size),max-content));justify-content:center;gap:1.25rem;max-width:60rem;margin:0 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