:root{--ink:#111318;--paper:#f4f1e8;--paper2:#ebe6d8;--cobalt:#1f3bff;--signal:#ff4b2b;--signal-dark:#a3210b;--mint:#b9f5d0;--graphite:#2b2e36;--muted:#686257;--line:#11131824;--max:1120px}html{background:var(--paper);color:var(--ink)}body{background:var(--paper);min-width:320px;color:var(--ink);margin:0;font-family:"Source Serif 4",Georgia,serif;font-size:18px;line-height:1.6}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit}:focus-visible{outline:2px solid var(--cobalt);outline-offset:3px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{overflow-x:hidden}img,svg{max-width:100%}h1,h2,h3,p{overflow-wrap:anywhere}.mono{font-family:IBM Plex Mono,ui-monospace,SFMono-Regular,Menlo,monospace}.label{letter-spacing:.13em;text-transform:uppercase;color:var(--muted);font-family:IBM Plex Mono,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:10px;font-weight:500}.shell{flex-direction:column;min-height:100vh;display:flex}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;padding:14px 22px;display:flex}@media (width>=1164px){.topbar{padding-left:calc((100vw - var(--max)) / 2);padding-right:calc((100vw - var(--max)) / 2)}}.wordmark{color:var(--ink);align-items:center;gap:10px;text-decoration:none;display:inline-flex}.wordmark__mark{border:1px solid var(--ink);letter-spacing:.06em;align-items:center;min-height:26px;padding:2px 7px;font-size:10px;display:inline-flex}.wordmark__name{letter-spacing:-.03em;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:17px;font-weight:700}.topbar__right{align-items:center;gap:12px;display:flex}.topbar__meta{letter-spacing:.12em;color:var(--muted);white-space:nowrap;font-size:10px;text-decoration:none}a.topbar__meta:hover{color:var(--cobalt)}.shell__main{width:100%;max-width:var(--max);flex:1;margin:0 auto;padding:28px 22px 64px}.shell__footer{width:100%;max-width:var(--max);border-top:1px solid var(--line);color:var(--muted);letter-spacing:.12em;justify-content:space-between;gap:16px;margin:0 auto;padding:16px 22px 22px;font-size:9px;display:flex}.page-title{letter-spacing:-.05em;margin:14px 0 18px;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:clamp(40px,7vw,72px);font-weight:700;line-height:.92}.page-lede{max-width:56ch;color:var(--graphite);margin:0;font-size:19px}.btn{border:1px solid var(--ink);background:var(--ink);min-height:48px;color:var(--paper);letter-spacing:.12em;text-transform:uppercase;border-radius:2px;justify-content:center;align-items:center;gap:8px;padding:0 20px;font-family:IBM Plex Mono,ui-monospace,monospace;font-size:11px;font-weight:500;line-height:1;text-decoration:none;transition:background .12s,border-color .12s,color .12s,transform .12s;display:inline-flex}.btn:hover:not(:disabled){border-color:var(--cobalt);background:var(--cobalt);color:var(--paper)}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn--secondary{border-color:var(--ink);color:var(--ink);background:0 0}.btn--secondary:hover:not(:disabled){border-color:var(--ink);background:var(--ink);color:var(--paper)}.btn--ghost{color:var(--ink);background:0 0;border-color:#0000;padding:0 8px}.btn--full{width:100%}.link{color:var(--ink);letter-spacing:.1em;text-transform:uppercase;text-underline-offset:3px;background:0 0;border:0;padding:0;font-family:IBM Plex Mono,ui-monospace,monospace;font-size:11px;text-decoration:underline}.link:hover:not(:disabled){color:var(--cobalt)}.link--danger:hover:not(:disabled){color:var(--signal-dark)}.link:disabled{opacity:.4;cursor:not-allowed}.card{border:1px solid var(--line);background:var(--paper2);border-radius:2px;padding:24px}.card--plain{background:var(--paper)}.card--accent{border-color:var(--ink);background:var(--mint)}.auth{grid-template-columns:1fr;min-height:100vh;display:grid}@media (width>=900px){.auth{grid-template-columns:1.15fr .85fr}}.auth__intro{border-bottom:1px solid var(--line);flex-direction:column;justify-content:center;min-height:44vh;padding:34px 22px;display:flex}@media (width>=900px){.auth__intro{border-right:1px solid var(--line);border-bottom:0;min-height:100vh;padding:64px 56px}}.auth__headline{letter-spacing:-.055em;margin:20px 0;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:clamp(44px,7vw,86px);font-weight:700;line-height:.92}.auth__headline em{color:var(--cobalt);font-family:"Source Serif 4",Georgia,serif;font-style:italic;font-weight:500}.auth__lede{max-width:44ch;color:var(--graphite);margin:0;font-size:19px}.auth__facts{border-top:1px solid var(--line);gap:10px;max-width:460px;margin:34px 0 0;padding-top:18px;display:grid}.auth__facts div{border-bottom:1px dotted var(--line);justify-content:space-between;gap:16px;padding-bottom:8px;display:flex}.auth__facts dt{margin:0}.auth__facts dd{text-align:right;margin:0;font-size:15px}.auth__panel{justify-content:center;align-items:center;padding:36px 22px 64px;display:flex}@media (width>=900px){.auth__panel{min-height:100vh;padding:48px}}.auth__panel-inner{width:100%;max-width:400px}.auth__title{letter-spacing:-.04em;margin:6px 0 24px;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:40px;font-weight:700;line-height:1}.auth__switch{color:var(--muted);margin:22px 0 0;font-size:15px}.form{gap:18px;display:grid}.field{gap:6px;display:grid}.field input{border:1px solid var(--ink);background:var(--paper);width:100%;min-height:48px;color:var(--ink);border-radius:2px;padding:10px 12px;font-family:"Source Serif 4",Georgia,serif;font-size:17px}.field input::placeholder{color:#8a8377}.fieldset{border:0;gap:8px;margin:0;padding:0;display:grid}.choice-grid{gap:8px;display:grid}.choice{border:1px solid var(--line);background:var(--paper);cursor:pointer;border-radius:2px;gap:2px;padding:12px 40px 12px 14px;display:grid;position:relative}.choice:hover{border-color:var(--ink)}.choice.is-selected{border-color:var(--ink);background:var(--mint)}.choice.is-selected:after{content:"✓";font-family:IBM Plex Mono,monospace;font-size:14px;position:absolute;top:10px;right:13px}.choice input,.segment input{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.choice:focus-within,.segment:focus-within{outline:2px solid var(--cobalt);outline-offset:2px}.choice__title{letter-spacing:-.02em;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:18px;font-weight:600;line-height:1.2}.choice__meta{color:var(--muted);font-size:13px}.segmented{border:1px solid var(--ink);border-radius:2px;grid-template-columns:repeat(3,1fr);display:grid}.segment{border-right:1px solid var(--ink);background:var(--paper);cursor:pointer;justify-content:center;align-items:baseline;gap:4px;padding:12px 8px;display:flex;position:relative}.segment:last-child{border-right:0}.segment.is-selected{background:var(--ink);color:var(--paper)}.segment__value{font-size:20px;line-height:1}.segment__label{letter-spacing:.1em;text-transform:uppercase;font-family:IBM Plex Mono,monospace;font-size:10px}.form__message{border:1px solid var(--ink);border-radius:2px;margin:0;padding:10px 12px;font-size:14px;line-height:1.4}.form__message--error{border-color:var(--signal);background:#ffe6e0}.form__message--notice{background:var(--mint)}.form__actions{flex-wrap:wrap;gap:12px;margin-top:4px;display:flex}.settings{gap:24px;max-width:900px;margin:0 auto;display:grid}.settings-card{padding:24px}@media (width>=900px){.settings-card{padding:32px}}.day-grid{flex-wrap:wrap;gap:8px;display:flex}.day{border:1px solid var(--line);background:var(--paper);cursor:pointer;border-radius:2px;justify-content:center;align-items:center;min-width:42px;min-height:40px;padding:8px 12px;font-size:13px;display:inline-flex;position:relative}.day:hover{border-color:var(--ink)}.day.is-selected{border-color:var(--ink);background:var(--ink);color:var(--paper)}.day input{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.day:focus-within{outline:2px solid var(--cobalt);outline-offset:2px}.day--wide{justify-content:flex-start;min-width:120px}.day--wide span{font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-weight:600}.onboarding{gap:30px;display:grid}@media (width>=900px){.onboarding{grid-template-columns:.9fr 1.1fr;align-items:start;gap:56px}.onboarding .page-head{position:sticky;top:24px}}.onboarding__card{padding:24px}@media (width>=900px){.onboarding__card{padding:32px}}.dash{gap:28px;display:grid}.dash__hero{border-bottom:1px solid var(--line);padding-bottom:28px}.dash__greeting{margin-bottom:10px}.dash__meta{border:1px solid var(--line);background:var(--line);grid-template-columns:repeat(2,1fr);gap:1px;margin-top:28px;display:grid}@media (width>=720px){.dash__meta{grid-template-columns:repeat(4,1fr)}}.dash__meta-item{background:var(--paper);gap:2px;padding:12px 14px;display:grid}.dash__meta-item strong{letter-spacing:-.02em;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:19px;font-weight:600;line-height:1.2}.dash__grid{gap:20px;display:grid}@media (width>=900px){.dash__grid{grid-template-columns:1.2fr .8fr;align-items:start}}.unit-stack,.dash__side{gap:16px;display:grid}.unit-card.is-current{border-color:var(--ink);box-shadow:4px 4px 0 var(--line)}.badge--current{border-color:var(--cobalt);background:var(--paper);color:var(--cobalt)}.unit-card__secondary{flex-wrap:wrap;justify-content:space-between;gap:12px;display:flex}.goal-strip{border:1px solid var(--line);background:var(--paper2);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-top:20px;padding:12px 14px;display:flex}.goal-strip__main{gap:2px;display:grid}.goal-strip__main strong{letter-spacing:-.02em;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:20px}.goal-strip__main>span:last-child{color:var(--muted);font-size:13px}.level-card,.goal-card{gap:14px;padding:22px;display:grid}.level-list{border-top:1px solid var(--line);gap:0;display:grid}.level-row{border-bottom:1px solid var(--line);grid-template-columns:1fr auto;align-items:baseline;gap:2px 12px;padding:9px 0;display:grid}.level-row__name{font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:16px;font-weight:600}.level-row__level{font-size:18px}.level-row__meta{color:var(--muted);grid-column:1/-1;font-size:11px}.level-card__links{flex-wrap:wrap;gap:12px;display:flex}.goal-card p{color:var(--graphite);margin:0;font-size:15px;line-height:1.5}.unit-card{flex-direction:column;gap:18px;padding:26px;display:flex}.unit-card__head{justify-content:space-between;align-items:center;gap:12px;display:flex}.unit-card__time{letter-spacing:.08em;color:var(--muted);font-size:10px}.unit-card__title{letter-spacing:-.04em;margin:0;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:clamp(32px,5vw,46px);font-weight:700;line-height:1}.unit-card__can-do{max-width:44ch;color:var(--graphite);margin:0;font-size:16px}.unit-card__stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:1fr 1fr;display:grid}.unit-card__stats>div{gap:2px;padding:12px 0;display:grid}.unit-card__stats>div+div{border-left:1px solid var(--line);padding-left:16px}.stat-value{font-size:26px;line-height:1.1}.skills-card{flex-direction:column;gap:18px;padding:26px;display:flex}.skill-list{gap:14px;display:grid}.skill{gap:6px;display:grid}.skill__row{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.skill__name{letter-spacing:-.01em;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:17px;font-weight:600}.skill__value{color:var(--muted);font-size:11px}.skill__track{border:1px solid var(--line);background:var(--paper);height:6px}.skill__fill{background:var(--ink);height:100%;display:block}.skills-card__note{border-top:1px solid var(--line);color:var(--muted);margin:0;padding-top:14px;font-size:13px}.dash__links{border-top:1px solid var(--line);align-items:center;gap:10px;padding-top:18px;display:flex}.dash__dot{color:var(--muted)}.progress{gap:6px;display:grid}.progress__meta{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.progress__count{font-size:12px}.progress__track{border:1px solid var(--ink);background:var(--paper);height:10px}.progress__fill{background:var(--cobalt);height:100%;transition:width .35s}.lesson{gap:14px;max-width:760px;margin:0 auto;display:grid}.lesson__head{justify-content:space-between;align-items:flex-end;gap:16px;display:flex}.lesson__title{letter-spacing:-.04em;margin:6px 0 0;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:clamp(32px,5vw,44px);font-weight:700;line-height:.95}.exercise-card{padding:22px}.exercise{gap:14px;display:grid}.exercise__kind{margin:0}.exercise__prompt{letter-spacing:-.01em;margin:0;font-family:"Source Serif 4",Georgia,serif;font-size:clamp(20px,3vw,24px);font-weight:600;line-height:1.28}.exercise__prompt--gap{line-height:1.7}.exercise__hint{color:var(--muted);margin:-8px 0 0;font-size:14px}.gap{border-bottom:2px solid var(--cobalt);min-width:76px;color:var(--cobalt);text-align:center;margin:0 6px;padding:0 8px;font-family:IBM Plex Mono,monospace;font-size:.82em;display:inline-block}.gap--filled{border-bottom-color:var(--ink);background:var(--mint);color:var(--ink)}.options{gap:8px;display:grid}.option{border:1px solid var(--line);background:var(--paper);width:100%;min-height:48px;color:var(--ink);text-align:left;border-radius:2px;align-items:stretch;gap:0;padding:0;display:flex}.option:hover:not(:disabled){border-color:var(--ink)}.option:disabled{cursor:default}.option__letter{border-right:1px solid var(--line);width:44px;color:var(--muted);flex:0 0 44px;justify-content:center;align-items:center;font-size:12px;display:flex}.option__text{align-items:center;padding:11px 14px;font-size:17px;line-height:1.35;display:flex}.option.is-selected{border-color:var(--ink);background:var(--paper2)}.option.is-selected .option__letter{border-color:var(--ink);background:var(--ink);color:var(--paper)}.option.is-correct{border-color:var(--ink);background:var(--mint)}.option.is-correct .option__letter{border-color:var(--ink);background:var(--ink);color:var(--mint)}.option.is-wrong{border-color:var(--signal);background:#ffe6e0}.option.is-wrong .option__letter{border-color:var(--signal);background:var(--signal);color:var(--paper)}.listening{border:1px solid var(--ink);background:var(--paper);gap:12px;padding:14px;display:grid}.listening__row{align-items:center;gap:12px;display:flex}.listening__pulse{border:1px solid var(--ink);background:var(--paper);flex:none;width:12px;height:12px}.listening__pulse.is-live{background:var(--signal);animation:1s ease-in-out infinite pulse}@keyframes pulse{50%{transform:scale(.55)}}@media (prefers-reduced-motion:reduce){.listening__pulse.is-live{animation:none}.progress__fill{transition:none}}.listening__copy{flex:1;gap:1px;display:grid}.listening__meta{color:var(--muted);font-size:10px}.listening__hint{border-top:1px dotted var(--line);color:var(--muted);margin:0;padding-top:10px;font-size:13px}.listening__note{border-left:3px solid var(--signal);color:var(--signal-dark);margin:0;padding-left:8px;font-size:13px}.listening__audio{width:100%}.transcript{border-left:3px solid var(--cobalt);gap:4px;margin:0;padding:2px 0 2px 12px;display:grid}.transcript p{margin:0;font-size:16px;font-style:italic}.lesson__actions{display:flex}.lesson__actions .btn{width:100%}.feedback{border:1px solid var(--ink);border-radius:2px;gap:8px;padding:16px;display:grid}.feedback--correct{background:var(--mint)}.feedback--incorrect{border-color:var(--signal);background:#ffe6e0}.feedback__head{justify-content:space-between;align-items:center;gap:12px;display:flex}.feedback__mark{letter-spacing:.1em;font-size:10px}.feedback__answer{margin:0;font-size:15px}.feedback__explanation{border-top:1px solid #11131829;margin:0;padding-top:10px;font-size:16px}.complete{gap:24px;max-width:760px;margin:0 auto;display:grid}.complete__title{margin:10px 0 0}.score{border-top:1px solid var(--line);border-bottom:1px solid var(--line);align-items:flex-end;gap:24px;padding:24px 0;display:flex}.score__value{letter-spacing:-.06em;font-size:clamp(72px,14vw,128px);font-weight:500;line-height:.8}.score__slash{color:var(--muted);margin:0 4px}.score__meta{gap:2px;padding-bottom:6px;display:grid}.score__meta strong{font-size:14px}.score__note{color:var(--muted);font-size:14px}.complete__actions{flex-wrap:wrap;gap:12px;display:flex}.complete__footnote{border-top:1px solid var(--line);color:var(--muted);margin:0;padding-top:14px;font-size:13px}@media (width<=520px){.score{flex-direction:column;align-items:flex-start;gap:12px}}.placement,.quiz{gap:24px;max-width:760px;margin:0 auto;display:grid}.placement__title{margin:8px 0 0}.quiz__head{gap:6px;display:grid}.quiz__title{letter-spacing:-.04em;margin:0;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:clamp(32px,5vw,46px);font-weight:700;line-height:.95}.quiz__note{max-width:60ch;color:var(--muted);margin:0;font-size:14px}.placement-facts{border:1px solid var(--line);background:var(--line);grid-template-columns:repeat(2,1fr);gap:1px;display:grid}@media (width>=640px){.placement-facts{grid-template-columns:repeat(4,1fr)}}.placement-facts>div{background:var(--paper);gap:2px;padding:12px 14px;display:grid}.placement-facts strong{letter-spacing:-.02em;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:18px;font-weight:600;line-height:1.2}.placement-grid{gap:12px;display:grid}@media (width>=640px){.placement-grid{grid-template-columns:repeat(3,1fr)}}.placement-card{gap:4px;padding:20px;display:grid}.placement-card__level{letter-spacing:-.04em;font-size:44px;font-weight:500;line-height:1}.placement-card__meta{color:var(--muted);font-size:13px}.placement-callout{border-color:var(--ink);background:var(--mint);flex-direction:column;align-items:flex-start;gap:14px;display:flex}.placement-callout p{max-width:52ch;margin:4px 0 0;font-size:16px}@media (width>=720px){.placement-callout{flex-direction:row;justify-content:space-between;align-items:center}}.placement-strip{border:1px solid var(--line);background:var(--paper2);justify-content:space-between;align-items:center;gap:14px;padding:12px 14px;display:flex}.placement-strip__copy{gap:2px;min-width:0;display:grid}.placement-strip>.link{white-space:nowrap;flex:none}.placement-strip__levels{color:var(--graphite);font-size:13px;line-height:1.35}@media (width>=720px){.placement-strip__levels{letter-spacing:.04em;font-size:11px}}.badge{border:1px solid var(--ink);letter-spacing:.1em;text-transform:uppercase;align-items:center;min-height:22px;padding:2px 8px;font-family:IBM Plex Mono,monospace;font-size:9px;display:inline-flex}.badge--mint{background:var(--mint)}.unit-card__status{border-top:1px solid var(--line);color:var(--muted);margin:0;padding-top:10px;font-size:13px}.unit-card__actions{gap:8px;display:grid}.skill__level{letter-spacing:.06em;color:var(--muted);margin-left:6px;font-size:10px}.practice{gap:14px;display:grid}.practice__head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.practice__head .exercise__kind{margin:0}.tag-list{flex-wrap:wrap;gap:6px;display:flex}.tag{border:1px solid var(--line);background:var(--paper);color:var(--muted);letter-spacing:.04em;white-space:nowrap;padding:2px 6px;font-family:IBM Plex Mono,monospace;font-size:9px}.practice-card{border-color:var(--ink);background:var(--mint);flex-direction:column;justify-content:space-between;align-items:flex-start;gap:20px;padding:24px;display:flex}@media (width>=720px){.practice-card{flex-direction:row;align-items:center}}.practice-card__title{letter-spacing:-.04em;margin:4px 0 6px;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:clamp(28px,4vw,38px);font-weight:700;line-height:1}.practice-card__lede{max-width:54ch;margin:0 0 12px;font-size:15px}.practice-block{gap:16px;display:grid}.practice-source{border-left:3px solid var(--cobalt);margin:0;padding:4px 0 4px 12px}.practice-source p{margin:4px 0 0;font-size:16px;font-style:italic}.practice-textarea{border:1px solid var(--ink);background:var(--paper);width:100%;min-height:150px;color:var(--ink);resize:vertical;border-radius:2px;padding:12px;font-family:"Source Serif 4",Georgia,serif;font-size:17px;line-height:1.5}.practice-textarea:disabled{background:var(--paper2)}.practice-wordcount{color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:8px;font-size:11px;display:flex}.practice-wordcount__hint{color:var(--signal-dark);font-size:12px}.practice-wordcount__ok{color:var(--graphite);font-size:12px}.rubric{border-top:1px solid var(--line);gap:7px;padding-top:12px;display:grid}.rubric-item{cursor:pointer;align-items:flex-start;gap:9px;font-size:15px;line-height:1.35;display:flex}.rubric-item input{width:16px;height:16px;accent-color:var(--cobalt);flex:none;margin-top:3px}.matching{gap:16px;display:grid}@media (width>=640px){.matching{grid-template-columns:1fr 1fr}}.matching__col{align-content:start;gap:8px;display:grid}.matching__options{gap:8px;display:grid}.match-item{border:1px solid var(--line);background:var(--paper);color:var(--ink);text-align:left;border-radius:2px;gap:2px;min-height:52px;padding:8px 10px;display:grid}.match-item:hover:not(:disabled){border-color:var(--ink)}.match-item__left{font-size:17px;line-height:1.3}.match-item__right{color:var(--cobalt);font-family:IBM Plex Mono,monospace;font-size:10px}.match-item__right.is-empty{color:var(--muted)}.match-item.is-selected{border-color:var(--ink);background:var(--paper2)}.match-item.is-correct{border-color:var(--ink);background:var(--mint)}.match-item.is-wrong{border-color:var(--signal);background:#ffe6e0}.match-pill{border:1px solid var(--line);background:var(--paper);color:var(--ink);text-align:left;border-radius:2px;padding:10px 12px;font-size:16px;line-height:1.3}.match-pill:hover:not(:disabled){border-color:var(--ink)}.match-pill.is-used{opacity:.5}.match-pill.is-correct{opacity:1;border-color:var(--ink);background:var(--mint)}.match-pill.is-wrong{opacity:1;border-color:var(--signal);background:#ffe6e0}.recorder{border:1px solid var(--ink);background:var(--paper);gap:10px;padding:14px;display:grid}.recorder__head{align-items:center;gap:12px;display:flex}.recorder__dot{border:1px solid var(--ink);background:var(--paper);flex:none;width:12px;height:12px}.recorder__dot.is-live{background:var(--signal);animation:1s ease-in-out infinite pulse}.recorder__copy{flex:1;gap:1px;display:grid}.recorder__meta{color:var(--muted);font-size:10px}.recorder__audio{width:100%}.recorder__fallback{border-top:1px dotted var(--line);flex-wrap:wrap;align-items:center;gap:10px;padding-top:10px;display:flex}.file-input{display:inline-flex;position:relative;overflow:hidden}.file-input input{opacity:0;cursor:pointer;position:absolute;inset:0}.file-input:focus-within{outline:2px solid var(--cobalt);outline-offset:3px}.practice-result-list{border-top:1px solid var(--line)}.practice-result-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:baseline;gap:12px;padding:9px 0;font-size:13px;display:flex}.practice-result-row .is-ok{color:var(--graphite)}.practice-result-row .is-wrong{color:var(--signal-dark)}.mock-hub{gap:24px;max-width:1000px;margin:0 auto;display:grid}.mock-grid{gap:16px;display:grid}@media (width>=800px){.mock-grid{grid-template-columns:1fr 1fr}}.mock-card{gap:10px;padding:24px;display:grid}.mock-card__title{letter-spacing:-.04em;margin:0;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:clamp(28px,4vw,36px);font-weight:700;line-height:1}.mock-card__subtitle{color:var(--graphite);margin:0;font-size:15px}.mock-card__meta{color:var(--muted);letter-spacing:.04em;font-size:10px}.mock-card__latest{border-top:1px solid var(--line);gap:4px;padding-top:10px;display:grid}.mock-card__score{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.mock-card__score strong{font-size:20px}.mock-card__score span{color:var(--muted);font-size:12px}.mock-card__empty{border-top:1px solid var(--line);color:var(--muted);margin:0;padding-top:10px;font-size:13px}.mock-card__actions{flex-wrap:wrap;gap:8px;margin-top:4px;display:flex}.mock-promo{border-color:var(--ink);background:var(--paper2);flex-direction:column;justify-content:space-between;align-items:flex-start;gap:20px;padding:24px;display:flex}@media (width>=720px){.mock-promo{flex-direction:row;align-items:center}}.mock-sections{gap:12px;display:grid}.mock-section{border-bottom:1px solid var(--line);gap:6px;padding:10px 0;display:grid}.mock-section-row,.mock-section__row{justify-content:space-between;align-items:baseline;gap:12px;font-size:15px;display:flex}.mock-section-row .mono,.mock-section__row .mono{color:var(--muted);font-size:11px}.mock-result{gap:20px;max-width:860px;margin:0 auto;display:grid}.mock-tags{gap:10px;padding:20px;display:grid}.mock-tags .skills-card__note{padding-top:10px}.mock-errors{gap:10px;display:grid}.mock-error{gap:8px;padding:18px;display:grid}.mock-error__prompt{margin:0;font-family:"Source Serif 4",Georgia,serif;font-size:17px;line-height:1.35}.mock-error__answer{margin:0;font-size:14px}.mock-error__explanation{border-top:1px solid var(--line);color:var(--graphite);margin:0;padding-top:8px;font-size:14px}.topbar__meta.is-urgent{color:var(--signal-dark)}.exercise__tags{color:var(--muted);letter-spacing:.02em}.planner{gap:24px;max-width:900px;margin:0 auto;display:grid}.planner-meta,.review-stats{border:1px solid var(--line);background:var(--line);grid-template-columns:repeat(2,1fr);gap:1px;display:grid}@media (width>=720px){.planner-meta,.review-stats{grid-template-columns:repeat(4,1fr)}}.planner-meta>div,.review-stats>div{background:var(--paper);gap:2px;padding:12px 14px;display:grid}.planner-meta strong,.review-stats strong{font-size:22px;font-weight:500;line-height:1.1}.planner-section{gap:12px;display:grid}.planner-section__head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:8px;display:flex}.planner-title{letter-spacing:-.03em;margin:0;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:28px;font-weight:700}.milestone-list,.week-list{border-top:1px solid var(--line)}.milestone{border-bottom:1px solid var(--line);grid-template-columns:120px 1fr auto;align-items:start;gap:12px;padding:12px 0;display:grid}.milestone.is-hard{background:var(--mint);padding-inline:10px}.milestone__date{color:var(--muted);padding-top:3px;font-size:11px}.milestone__body strong{letter-spacing:-.01em;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:18px;font-weight:600}.milestone__body p{color:var(--muted);margin:2px 0 0;font-size:13px}.badge--hard{border-color:var(--ink);background:var(--ink);color:var(--paper)}.week-row{border-bottom:1px solid var(--line);grid-template-columns:48px 170px 1fr 80px;align-items:baseline;gap:10px;padding:10px 0;font-size:14px;display:grid}.week-row.is-current{background:var(--mint);padding-inline:10px}.week-row__index{color:var(--muted);font-size:11px}.week-row__dates{color:var(--muted);font-size:10px}.week-row__focus{font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-weight:600}.week-row__minutes{text-align:right;color:var(--muted);font-size:10px}@media (width<=640px){.milestone{grid-template-columns:1fr auto}.milestone__date{grid-column:1/-1}.week-row{grid-template-columns:48px 1fr;row-gap:2px}.week-row__focus{grid-column:1/-1}.week-row__minutes{text-align:left;grid-column:1/-1}}.planner-callout{border-color:var(--ink);background:var(--paper2);flex-direction:column;justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.planner-callout p{max-width:60ch;margin:4px 0 0;font-size:15px}@media (width>=720px){.planner-callout{flex-direction:row;align-items:center}}.review{gap:20px;max-width:860px;margin:0 auto;display:grid}.review-card{gap:16px;display:grid}.review-card__head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:8px;display:flex}.review-card__due{color:var(--muted);font-size:10px}.review-grades{border-top:1px solid var(--line);gap:8px;padding-top:10px;display:grid}.review-grades__buttons{flex-wrap:wrap;gap:8px;display:flex}.review-done{gap:12px;padding:28px;display:grid}.review-done p{color:var(--graphite);margin:0}.study-tools{gap:12px;display:grid}@media (width>=720px){.study-tools{grid-template-columns:1fr 1fr}}.tool-card{border:1px solid var(--line);background:var(--paper2);color:var(--ink);border-radius:2px;gap:4px;padding:18px;text-decoration:none;transition:border-color .12s;display:grid}.tool-card:hover{border-color:var(--ink)}.tool-card strong{letter-spacing:-.02em;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:20px;font-weight:600;line-height:1.15}.tool-card>span:last-child{color:var(--muted);font-size:13px}.ai-feedback{border:1px solid var(--line);background:var(--paper);gap:12px;padding:18px;display:grid}.ai-feedback__head{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.ai-feedback__head p{max-width:60ch;color:var(--graphite);margin:4px 0 0;font-size:14px}.ai-feedback__note{border-top:1px solid var(--line);color:var(--muted);margin:0;padding-top:10px;font-size:12px}.ai-result{border-top:1px solid var(--line);gap:12px;padding-top:12px;display:grid}.ai-result__score{align-items:baseline;gap:12px;display:flex}.ai-result__score strong{font-size:28px;font-weight:500}.ai-result__columns{gap:16px;display:grid}@media (width>=640px){.ai-result__columns{grid-template-columns:1fr 1fr}}.ai-result__columns ul{margin:6px 0 0;padding-left:18px;font-size:14px;line-height:1.45}.ai-result__corrected{border-left:3px solid var(--cobalt);padding:4px 0 4px 12px}.ai-result__corrected p{margin:4px 0 0;font-size:16px;font-style:italic}.ai-result__next{margin:0;font-size:14px}.tutor{gap:20px;max-width:800px;margin:0 auto;display:grid}.chat{gap:12px;display:grid}.chat__message{border:1px solid var(--line);background:var(--paper2);border-radius:2px;max-width:82%;padding:12px 14px}.chat__message--user{border-color:var(--ink);background:var(--mint);margin-left:auto}.chat__message p{white-space:pre-wrap;margin:4px 0 0;font-size:16px;line-height:1.45}.chat__typing{color:var(--muted);font-style:italic}.chat__starters{flex-wrap:wrap;gap:10px;padding-top:4px;display:flex}.chat__starters .link{text-align:left;line-height:1.35}.chat__form{border-top:1px solid var(--line);gap:12px;padding-top:12px;display:grid}.chat__form .practice-textarea{min-height:90px}.chat__form .btn{justify-self:start}.screen-center{flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:40vh;display:flex}.loader{border:1px solid var(--line);border-top-color:var(--ink);border-radius:50%;width:22px;height:22px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.loader{animation-duration:2s}}.state-card{gap:14px;max-width:560px;margin:40px auto;padding:28px;display:grid}.state-card__title{letter-spacing:-.03em;margin:0;font-family:Bricolage Grotesque,Helvetica Neue,sans-serif;font-size:32px;font-weight:700}.state-card__actions{flex-wrap:wrap;gap:10px;display:flex}.config{gap:18px;max-width:760px;margin:0 auto;padding:64px 22px;display:grid}.config__code{background:var(--ink);color:var(--paper);border-radius:2px;margin:0;padding:16px;font-family:IBM Plex Mono,monospace;font-size:13px;line-height:1.7;overflow-x:auto}code{background:var(--paper2);padding:1px 4px;font-family:IBM Plex Mono,monospace;font-size:.88em}.config__note{color:var(--muted);margin:0;font-size:14px}@media (width<=480px){.auth__headline{font-size:42px}.auth__facts div{gap:2px;display:grid}.auth__facts dd{text-align:left}.unit-card,.skills-card,.exercise-card,.onboarding__card{padding:20px}.lesson__title{font-size:34px}.option__text{font-size:16px}}