:root{color-scheme:light;--ink:#111118;--bg:#f0f6ff;--surface:#fff;--surface-2:#e1edff;--line:#e1edff;--muted:#555764;--primary:#111118;--primary-hover:#30303d;--iris:#2727e6;--accent:#e1edff;--focus:#2727e6;--success:#111118;--success-bg:#e1edff;--error:#111118;--error-bg:#f0f6ff;--warning:#111118;--radius:24px;--color-electric-iris:#2727e6;--color-ink-black:#111118;--color-paper-white:#fff;--color-chalk-blue:#f0f6ff;--color-frost-blue:#e1edff;--color-marker-red:#ff4141;--color-hi-yellow:#ffda00;--color-powder-sky:#91d8ec;--color-bubblegum-pink:#ffbac4;--color-jelly-green:#16ab59;font-family:Inter,Arial,Helvetica,sans-serif;font-size:16px;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);line-height:1.4;-webkit-font-smoothing:antialiased}a{color:inherit}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}input:disabled{opacity:.75}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--focus);outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,h3,strong,b{font-weight:400}h1{font-size:clamp(38px,4.6vw,62px);letter-spacing:-.035em;line-height:1.05;margin-bottom:24px;text-wrap:balance}h2{font-size:35px;letter-spacing:-.025em;line-height:1.15;margin-bottom:20px}h3{font-size:22px;letter-spacing:-.014em;line-height:1.25;margin-bottom:12px}p{max-width:70ch}svg{display:block}.icon{width:20px;height:20px;flex:none;stroke-width:1.6}.hint-icon{display:block;object-fit:contain;width:19px;height:21px}small,.small{font-size:14px}.muted{color:var(--muted)}.offscreen{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.skip-link{position:fixed;top:-80px;left:16px;z-index:50;background:var(--ink);color:#fff;border-radius:24px;padding:12px 20px}.skip-link:focus{top:12px}.initial{margin:15vh auto;max-width:700px;padding:32px;border-radius:24px;background:white}.eyebrow{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;letter-spacing:.05em;line-height:1.4;display:block}
.shell{min-height:100dvh;overflow:clip}.announcement{background:var(--ink);color:#fff;min-height:32px;display:flex;align-items:center;justify-content:center;gap:40px;padding:9px 20px;font:10px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.08em}.announcement span:nth-child(even){font-size:15px;line-height:1}.topbar{position:sticky;top:0;z-index:10;min-height:96px;background:#fff;border-bottom:1px solid var(--line);padding:20px max(32px,calc((100vw - 1200px)/2));display:flex;align-items:center;gap:35px;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;white-space:nowrap;font-size:19px;letter-spacing:-.04em;line-height:1.15}.brand-mark{width:42px;height:42px;border-radius:50%;background:var(--iris);color:#fff;font-size:37px;line-height:1;display:grid;place-items:center;padding-bottom:8px;flex:none}.brand small{display:block;font-size:11px;letter-spacing:0;color:var(--muted);margin-top:5px}.nav{display:flex;align-items:center;gap:26px}.nav a{display:flex;align-items:center;gap:6px;position:relative;font-size:16px;text-decoration:none;padding:8px 0}.nav .icon{display:none}.nav a.active{color:var(--iris)}.nav a.active:after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--iris)}.nav a:hover{color:var(--iris)}.account-button{display:flex;align-items:center;justify-content:center;gap:9px;padding:11px 17px;border:1px solid var(--ink);border-radius:48px;font-size:14px;text-decoration:none;white-space:nowrap;min-height:44px}.account-button:hover{background:var(--bg)}.main{max-width:1200px;margin:0 auto;padding:64px 0 80px;min-height:calc(100dvh - 248px)}.main:focus{outline:none}.main:not(.home-main):not(.lesson-main){background:white;margin:48px auto 64px;padding:48px;border-radius:32px;border:1px solid var(--line);box-shadow:0 2px 0 var(--ink)}.page-heading{margin-bottom:40px}.page-heading p{font-size:18px;color:var(--muted);line-height:1.5;margin-bottom:0;max-width:600px}.site-footer{border-top:1px solid var(--line);background:#fff;padding:32px max(32px,calc((100vw - 1200px)/2));display:flex;gap:24px;align-items:center;justify-content:space-between}.footer-brand{text-decoration:none;font-size:16px;letter-spacing:-.025em}.site-footer>div{display:flex;gap:26px}.footer-link{font-size:13px;color:var(--muted);text-underline-offset:4px;text-decoration:none}.footer-link:hover{text-decoration:underline}
.button{border:1px solid var(--ink);border-radius:48px;min-height:52px;padding:13px 24px;display:inline-flex;align-items:center;justify-content:center;gap:14px;color:#fff;background:var(--ink);box-shadow:0 4px 0 var(--iris);font-size:17px;font-weight:400;text-decoration:none;line-height:1.3;transition:transform 160ms ease-out,box-shadow 160ms ease-out,background 160ms ease-out}.button:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 6px 0 var(--iris)}.button:active{transform:translateY(3px);box-shadow:0 1px 0 var(--iris)}.button.secondary{background:#fff;color:var(--ink);box-shadow:none;border-color:var(--ink)}.button.secondary:hover{background:var(--bg);box-shadow:0 2px 0 var(--ink)}.button.quiet{background:transparent;color:var(--muted);border-color:transparent;box-shadow:none;padding:10px 12px;min-height:44px}.button.quiet:hover{background:var(--surface-2);color:var(--ink);transform:none}.button.danger{background:white;color:var(--ink);box-shadow:none}.button.sm{min-height:42px;padding:10px 16px;font-size:14px}.actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.text-link{display:inline-flex;align-items:center;gap:8px;text-underline-offset:4px;text-decoration-thickness:1px;color:var(--ink)}.text-link:hover{color:var(--iris)}.back{display:inline-flex;align-items:center;gap:8px;color:var(--muted);text-decoration:none;font-size:14px;min-height:36px;margin-bottom:24px}.back:hover{color:var(--iris)}
.home-main{padding:0;max-width:none}.home-hero{position:relative;isolation:isolate;overflow:hidden;padding:64px 24px 72px;min-height:640px;display:grid;place-items:center}.hero-paper{position:relative;z-index:1;background:white;border-radius:40px;padding:48px 42px 38px;text-align:center;width:min(100%,740px)}.hero-paper .eyebrow{margin-bottom:24px}.hero-paper h1{font-size:clamp(48px,5.9vw,80px);letter-spacing:-.045em;margin:0 -20px 25px;line-height:1.02}.hero-paper p{font-size:19px;line-height:1.45;max-width:460px;margin:0 auto 28px}.hero-actions{display:flex;justify-content:center;align-items:center;gap:16px;flex-wrap:wrap}.hero-caption{display:block;font-size:12px;color:var(--muted);margin-top:25px}.paper-shapes{position:absolute;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.home-subjects{max-width:1200px;margin:0 auto;padding:64px 0 72px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}.section-heading .eyebrow{margin-bottom:14px}.section-heading h2{font-size:42px;margin:0;letter-spacing:-.035em}.section-heading .button{font-size:16px;min-height:46px;padding:10px 20px}.subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 24px}.subject-card{border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 2px 0 var(--ink);text-decoration:none;padding:12px;transition:transform 200ms ease-out,box-shadow 200ms ease-out;min-width:0}.subject-card:hover{transform:translateY(-5px);box-shadow:0 7px 0 var(--ink)}.subject-art{height:200px;position:relative;overflow:hidden;background:var(--bg);border-radius:16px;isolation:isolate;display:grid;place-items:center}.subject-card-body{padding:23px 14px 12px}.subject-card-body .eyebrow{font-size:10px;color:var(--muted);margin-bottom:12px}.subject-card h3{font-size:24px;line-height:1.2;letter-spacing:-.025em;min-height:58px;margin-bottom:16px}.subject-card-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}.circle-arrow{display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--ink);border-radius:50%;color:var(--ink);flex:none}.home-subjects>.footnote{margin:26px 0 0}.how-section{position:relative;isolation:isolate;overflow:hidden;padding:64px 24px;background:var(--surface-2)}.how-paper{max-width:1100px;margin:auto;padding:48px;background:#fff;border-radius:32px;position:relative;z-index:1}.how-paper h2{font-size:52px;letter-spacing:-.04em;margin-top:20px}.how-paper>.button{margin-top:36px}.steps{padding:0;list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:42px;margin:36px 0 0}.steps .number{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;display:block;margin-bottom:18px}.steps h3{font-size:21px}.steps p{font-size:16px;color:var(--muted);margin:0;line-height:1.5}
.section-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:32px 0 20px}.section-row h2{font-size:26px;margin:0}.section-row>a{font-size:14px}.footnote{margin-top:24px;font-size:13px;color:var(--muted);line-height:1.55}.note{padding:22px 24px;background:var(--bg);border:1px solid var(--line);border-radius:20px;margin:24px 0;color:var(--muted);font-size:15px}.note p:last-child{margin-bottom:0}.note strong{color:var(--ink);font-size:18px}.note.warning{border:1px dashed var(--ink)}.entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.entry-option{border:1px solid var(--line);border-radius:24px;padding:12px;background:#fff;box-shadow:0 2px 0 var(--ink);display:flex;flex-direction:column}.entry-option .subject-art{height:180px;flex:none}.entry-body{padding:28px 20px;flex:1;display:flex;flex-direction:column;align-items:start}.entry-body h2{font-size:35px;margin:25px 0 16px;letter-spacing:-.035em}.entry-body p{font-size:17px;line-height:1.5;color:var(--muted);margin-bottom:28px}.entry-body .button{margin-top:auto;font-size:16px}.tag{display:inline-flex;gap:6px;align-items:center;background:var(--surface-2);color:var(--ink);border-radius:5000px;padding:6px 12px;font-size:12px;line-height:1.35;max-width:100%}.tag.confirmed,.tag.success{background:var(--iris);color:#fff}.tag.learning{background:var(--surface-2);color:var(--ink)}.tag.error{background:var(--ink);color:#fff}
.lesson-main{max-width:900px;padding:36px 24px 64px}.session-wrap{max-width:800px;margin:0 auto}.session-top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:0 4px;font-size:13px;color:var(--muted);margin-bottom:12px}.session-top .button{font-size:13px;padding-right:0}.progress-track{display:flex;gap:6px;margin-bottom:28px}.progress-track i{height:5px;flex:1;border-radius:16px;background:var(--surface-2)}.progress-track i.done{background:var(--iris)}.task-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:15px;color:var(--ink);margin-bottom:18px;padding:0 4px}.task-card{padding:40px 44px;background:white;border-radius:24px;border:1px solid var(--line);box-shadow:0 3px 0 var(--ink);position:relative}.task-prompt{font-size:30px;line-height:1.38;letter-spacing:-.025em;font-weight:400;overflow-wrap:anywhere;white-space:pre-line;margin:0 0 32px;text-wrap:pretty}.task-figure{max-width:390px;margin:0 auto 20px;color:var(--ink)}.task-figure svg{width:100%;height:auto;max-height:230px}.fields{display:flex;align-items:end;flex-wrap:wrap;gap:20px}.field{display:flex;flex-direction:column;gap:10px;min-width:100px;max-width:340px;flex:1}.field label,.field-label{font-size:15px;color:var(--ink)}.field input,.input,textarea,select{width:100%;min-height:54px;border:1px solid var(--line);border-radius:5000px;padding:13px 20px;background:var(--bg);color:var(--ink)}.field input{font-size:20px;font-variant-numeric:tabular-nums}.field input::placeholder,.input::placeholder,textarea::placeholder{color:#686978;opacity:1}.field input:focus,.input:focus,textarea:focus{border-color:var(--iris)}textarea{resize:vertical;min-height:140px;border-radius:20px}.answer-help{font-size:12px;line-height:1.5;color:var(--muted);margin:12px 0 0}.answer-form .actions{margin-top:26px}.answer-form .button{font-size:16px}.choices{border:0;padding:0;margin:0;min-width:0;display:flex;flex-direction:column;gap:12px}.choice{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:24px;min-height:54px;padding:14px 20px;cursor:pointer}.choice:hover{background:var(--bg)}.choice:has(input:checked){border-color:var(--iris);background:var(--surface-2)}.choice input{width:18px;height:18px;accent-color:var(--iris);flex:none}.task-tools{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px;align-items:center}.task-tools .button{font-size:14px}.feedback{background:var(--bg);border-radius:20px;padding:24px;margin-top:28px;animation:feedback-in 180ms ease-out}.feedback.correct{background:var(--surface-2)}.feedback.incorrect{border:1px dashed var(--ink);background:var(--bg)}.feedback h3{display:flex;align-items:center;gap:12px;font-size:22px;margin-bottom:12px}.feedback p{font-size:15px;line-height:1.5;margin:0}.feedback .actions{margin-top:24px}.feedback h3>.icon{background:white;border-radius:50%;padding:5px;width:30px;height:30px}.explanation{background:#fff;padding:32px 36px;border-radius:24px;border:1px solid var(--line);box-shadow:0 2px 0 var(--ink);margin-top:20px}.explanation h2{font-size:26px}.explanation p{font-size:18px;line-height:1.65}.worked-example{background:var(--bg);padding:24px;border-radius:20px;margin:28px 0}.worked-example h3{font-size:16px;color:var(--muted)}.worked-example p:last-child{margin-bottom:0;font-size:22px;line-height:1.5}.explanation .footnote{font-size:13px}.lesson-main .page-heading{background:white;padding:28px 32px;border-radius:24px;margin:20px 0}.lesson-main .page-heading h1{font-size:42px}.solution-list{padding-left:20px;margin:0;line-height:1.65;font-size:17px}.solution-list li+li{margin-top:12px}.reason-note{font-size:13px;color:var(--muted);margin:22px 0;max-width:640px}.reason-note summary{cursor:pointer;min-height:28px}.reason-note p{background:#fff;border-radius:16px;padding:16px;margin:6px 0}.session-wrap>.text-link{font-size:12px}.result-title{font-size:40px}.result-observations{background:#fff;border:1px solid var(--line);padding:8px 24px;border-radius:24px;margin:24px 0}.observation{display:flex;gap:14px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line);font-size:16px}.observation:last-child{border:0}.observation .tag{margin-left:auto}.result-next{padding:28px;background:#fff;border-radius:24px;margin:24px 0}.result-next h2{font-size:28px}.result-next p{font-size:17px;color:var(--muted)}.review-dates{display:flex;flex-wrap:wrap;gap:16px;margin:20px 0}.review-date{background:white;border-radius:20px;padding:20px;font-size:18px;flex:1;min-width:180px}.review-date span{display:block;font-size:13px;color:var(--muted);margin-top:8px}
.filter-row{display:flex;gap:10px;flex-wrap:wrap;margin:32px 0 36px}.filter-row button{border:1px solid var(--line);border-radius:5000px;min-height:44px;padding:10px 18px;background:white;color:var(--ink);font-size:14px}.filter-row button.active{color:white;background:var(--iris);border-color:var(--iris)}.filter-row button:hover{border-color:var(--iris)}.skill-group{margin:36px 0 48px}.skill-group h2{font-size:28px;display:flex;align-items:center;gap:16px;margin-bottom:14px}.topic-symbol{font-size:24px;background:var(--bg);border-radius:50%;width:48px;height:48px;display:inline-grid;place-items:center;color:var(--ink);flex:none}.skill-row{display:grid;grid-template-columns:minmax(0,1fr) auto 24px;gap:18px;align-items:center;padding:22px 12px;border-bottom:1px solid var(--line);text-decoration:none;font-size:19px;letter-spacing:-.015em}.skill-row:hover{background:var(--bg);border-radius:16px;color:var(--iris)}.skill-row small{display:block;font-size:13px;color:var(--muted);margin-top:6px;letter-spacing:0}.skill-row>.icon{width:18px}.narrow{max-width:780px}.skill-detail .facets{list-style:none;padding:0;margin:20px 0 32px}.facets li{display:flex;gap:12px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line);font-size:17px}.facets li .icon{margin-top:3px;width:18px;color:var(--iris)}.facets li small{display:block;font-size:13px;margin-top:5px}.history-row{padding:24px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:20px}.history-row h3{margin:0 0 10px}.history-row p{margin:0;font-size:14px;line-height:1.6;color:var(--muted)}.history-row .button{margin-left:auto}.empty{padding:30px 0;max-width:530px}.empty>.icon{width:40px;height:40px;margin-bottom:24px;color:var(--iris)}.empty h2{font-size:30px}.empty p{font-size:18px;color:var(--muted)}.empty .button{margin-top:18px}.details{border-bottom:1px solid var(--line);padding:20px 0}.details summary{cursor:pointer;font-size:16px;min-height:28px}.details p{color:var(--muted);margin:18px 0 0;line-height:1.6}.details .button{margin-top:18px}
.account-form{max-width:460px}.account-form .field{max-width:none;margin-bottom:24px}.account-form input{font-size:17px}.check-label{display:flex;align-items:flex-start;gap:12px;font-size:14px;color:var(--muted);margin:24px 0;line-height:1.6}.check-label input{width:18px;height:18px;flex:none;margin-top:3px;accent-color:var(--iris)}.dev-code{background:var(--bg);padding:24px;border-radius:20px;margin:24px 0}.dev-code strong{font-size:32px;display:block;letter-spacing:.15em;margin-top:12px;font-variant-numeric:tabular-nums}.account-section{padding:28px 0;border-top:1px solid var(--line);margin-top:32px}.account-section h2{font-size:28px}.account-section p{color:var(--muted);font-size:16px;line-height:1.6}.price-layout{display:grid;grid-template-columns:1fr 1fr;gap:40px}.price-panel{padding:32px;border:1px solid var(--line);border-radius:24px;background:var(--bg)}.price-panel h2{font-size:28px}.price{font-size:56px;line-height:1.15;letter-spacing:-.04em;margin:28px 0}.price span{font-size:16px;letter-spacing:0;color:var(--muted)}.included{list-style:none;padding:0;margin:28px 0}.included li{display:flex;align-items:flex-start;gap:12px;padding:10px 0;font-size:16px}.included .icon{width:18px;margin-top:3px}.price-side h3{margin-top:18px}.price-side p{font-size:16px;color:var(--muted);line-height:1.6}.link-output{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.link-output input{flex:1;min-width:150px;font-size:13px}.buyer-shell{max-width:740px;margin:48px auto;padding:32px;background:white;border-radius:32px}.buyer-shell .brand{margin-bottom:40px}.buyer-summary{padding:28px;border:1px solid var(--line);border-radius:24px}.buyer-summary dl{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}.buyer-summary dt{color:var(--muted)}.buyer-summary dd{margin:0;text-align:right}.help-form{max-width:580px}.help-form .field{max-width:none;margin-bottom:24px}.admin-table-wrap{overflow:auto}.admin-table{width:100%;border-collapse:collapse;font-size:13px}.admin-table th,.admin-table td{padding:14px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.admin-table th{font-weight:400;color:var(--muted)}.admin-table td:first-child,.admin-table .button{white-space:nowrap}.admin-search{max-width:500px;margin:24px 0}.error-page{max-width:600px;margin:48px auto}.error-inline{margin-top:18px;padding:16px;border:1px dashed var(--ink);border-radius:16px;font-size:15px}.pending-bar{height:3px;position:fixed;inset:0 0 auto;z-index:30;background:var(--iris)}#toast:empty{display:none}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:min(90vw,600px);background:var(--ink);color:white;padding:16px 24px;border-radius:24px;z-index:40;font-size:14px}
@keyframes feedback-in{from{transform:translateY(5px);opacity:.5}to{transform:translateY(0);opacity:1}}

@media(max-width:1270px){.main:not(.home-main):not(.lesson-main){margin:40px 32px 60px}.home-subjects{padding-left:32px;padding-right:32px}.nav{gap:20px}.topbar{gap:24px}.brand{font-size:17px}.account-button{font-size:13px}.hero-paper{width:680px}.hero-paper h1{font-size:72px}}
@media(max-width:980px){.topbar{padding:20px 24px;gap:20px;flex-wrap:wrap;min-height:94px}.nav{order:3;width:100%;justify-content:center;gap:40px;padding-top:10px;border-top:1px solid var(--line)}.brand{font-size:20px}.account-button{font-size:14px}.hero-paper{width:640px}.hero-paper h1{font-size:66px}.home-hero{padding-top:50px;padding-bottom:50px;min-height:590px}.subject-grid{gap:24px 18px}.subject-art{height:160px}.subject-card-body{padding:20px 8px 10px}.subject-card h3{font-size:21px}.subject-card-bottom{font-size:11px}.circle-arrow{width:30px;height:30px}.subject-card-body .eyebrow{font-size:9px}.how-paper{padding:36px}.steps{gap:28px}.entry-body{padding:24px 14px}.entry-body h2{font-size:30px}.main:not(.home-main):not(.lesson-main){padding:36px}.site-footer{align-items:start;flex-direction:column}.section-heading h2{font-size:36px}.announcement{gap:26px}.price-layout{gap:24px}.price-panel{padding:24px}}
@media(max-width:700px){.announcement{font-size:8px;gap:20px;min-height:29px;padding:8px 12px}.announcement-extra{display:none}.topbar{padding:16px 20px;min-height:82px;flex-wrap:nowrap;gap:12px}.brand{font-size:17px;gap:9px}.brand-mark{width:36px;height:36px;font-size:32px}.brand small{font-size:9px;margin-top:4px}.account-button{width:42px;height:42px;padding:0;min-height:42px}.account-button>span{display:none}.nav{position:fixed;bottom:0;left:0;right:0;z-index:20;background:#fff;border-top:1px solid var(--line);display:flex;justify-content:space-around;padding:8px 10px max(10px,env(safe-area-inset-bottom));gap:0;width:100%;height:74px}.nav a{display:flex;flex-direction:column;gap:4px;padding:6px 12px;min-width:64px;font-size:11px}.nav a.active:after{display:none}.nav a.active{background:var(--bg);border-radius:16px}.nav .icon{display:block;width:19px;height:19px}.main:not(.home-main):not(.lesson-main){margin:24px 16px 40px;padding:26px 20px;border-radius:24px}.main{min-height:calc(100dvh - 300px)}.page-heading{margin-bottom:28px}.page-heading h1{font-size:38px;letter-spacing:-.04em}.page-heading p{font-size:16px}.home-hero{padding:42px 20px 48px;min-height:auto}.hero-paper{width:100%;padding:32px 20px 28px;border-radius:28px}.hero-paper .eyebrow{font-size:9px;margin-bottom:24px}.hero-paper h1{font-size:clamp(39px,7.8vw,56px);margin:0 -8px 22px;letter-spacing:-.045em;line-height:1.06}.hero-paper p{font-size:16px;max-width:400px;line-height:1.5;margin-bottom:25px}.hero-actions{gap:14px}.hero-actions .button{font-size:14px;min-height:48px;padding:12px 20px;gap:12px}.hero-caption{font-size:10px;margin-top:24px}.home-subjects{padding:40px 20px 48px}.section-heading{align-items:start;gap:20px;margin-bottom:24px;flex-wrap:wrap}.section-heading .eyebrow{font-size:9px;margin-bottom:12px}.section-heading h2{font-size:34px;max-width:260px}.section-heading .button{font-size:13px;min-height:40px;padding:8px 15px}.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 14px}.subject-card{padding:8px;border-radius:20px}.subject-art{height:140px}.subject-card-body{padding:18px 4px 8px}.subject-card-body .eyebrow{font-size:8px;letter-spacing:.01em;margin-bottom:10px}.subject-card h3{font-size:19px;min-height:69px;margin-bottom:10px;letter-spacing:-.02em}.subject-card-bottom{font-size:10px;align-items:end;gap:4px}.circle-arrow{width:26px;height:26px}.circle-arrow .icon{width:15px;height:15px}.how-section{padding:40px 20px}.how-paper{padding:30px 24px;border-radius:24px}.how-paper .eyebrow{font-size:9px}.how-paper h2{font-size:38px;margin-top:22px}.steps{grid-template-columns:1fr;gap:28px;margin-top:30px}.steps li{display:grid;grid-template-columns:24px 1fr;gap:16px}.steps .number{margin-top:5px;font-size:10px}.steps h3{font-size:20px;margin-bottom:10px}.steps p{font-size:15px}.how-paper>.button{font-size:14px;margin-top:28px}.site-footer{padding:28px 24px 100px;gap:20px}.footer-brand{font-size:15px;max-width:260px}.site-footer>div{gap:24px}.footer-link{font-size:11px}.entry-grid,.price-layout{grid-template-columns:1fr;gap:24px}.entry-option .subject-art{height:170px}.entry-body{padding:24px 16px}.entry-body h2{font-size:32px}.entry-body p{font-size:16px}.entry-body .button{font-size:14px;gap:10px}.button{font-size:15px;padding:12px 20px;min-height:48px}.button.sm{font-size:13px}.lesson-main{padding:20px 16px 42px}.session-top{gap:8px;font-size:11px;margin-bottom:10px}.session-top .button{font-size:11px;padding-left:6px;min-height:36px}.progress-track{margin-bottom:22px;gap:5px}.task-meta{font-size:13px;gap:10px;margin-bottom:16px;padding:0 4px}.task-meta .tag{font-size:10px;padding:5px 10px}.task-card{padding:26px 24px;border-radius:24px}.task-prompt{font-size:24px;line-height:1.4;margin-bottom:26px}.task-figure{max-width:300px;margin:0 auto 18px}.task-figure svg{max-height:170px}.field{max-width:none;gap:8px}.field label{font-size:14px}.field input{min-height:50px;font-size:19px}.answer-help{font-size:11px}.answer-form .actions{gap:8px;margin-top:22px}.answer-form .button{font-size:14px}.answer-form .button.quiet{padding:10px}.task-tools{gap:2px;margin-top:16px}.task-tools .button{font-size:12px;padding:8px}.task-tools .icon{width:17px}.feedback{padding:20px;margin-top:24px}.feedback h3{font-size:20px;gap:8px}.feedback p{font-size:14px}.feedback .button{font-size:14px}.reason-note{font-size:12px}.explanation{padding:26px 24px}.explanation p{font-size:16px;line-height:1.65}.explanation .button{font-size:14px}.worked-example{padding:20px;margin:24px 0}.worked-example p:last-child{font-size:19px}.lesson-main .page-heading{padding:24px;margin-top:20px}.lesson-main .page-heading h1{font-size:34px}.explanation .footnote{font-size:12px}.solution-list{font-size:15px}.filter-row{gap:8px;margin:26px 0}.filter-row button{font-size:12px;padding:8px 14px;min-height:40px}.skill-group{margin:30px 0 36px}.skill-group h2{font-size:24px;gap:12px}.topic-symbol{width:38px;height:38px;font-size:22px}.skill-row{grid-template-columns:minmax(0,1fr) 18px;gap:10px;padding:18px 0;font-size:18px}.skill-row small{font-size:12px}.skill-row>.icon{grid-column:2;grid-row:1}.skill-row .tag{grid-row:2;justify-self:start;font-size:10px}.section-row h2,h2.section-row{font-size:26px}.facets li{font-size:16px}.facets li small{font-size:12px}.history-row{align-items:flex-start;flex-wrap:wrap}.history-row .button{margin-left:0}.history-row h3{font-size:21px}.observation{flex-wrap:wrap;gap:10px}.observation>span:first-child{flex-basis:100%}.observation .tag{margin-left:0}.result-next{padding:24px}.result-next h2{font-size:26px}.result-next p{font-size:16px}.review-date{font-size:17px;min-width:150px}.note{padding:20px;font-size:14px}.note strong{font-size:17px}.footnote{font-size:12px}.account-section h2{font-size:25px}.account-section p{font-size:15px}.account-form input{font-size:16px}.check-label{font-size:13px}.price-panel{padding:24px}.price{font-size:48px}.price-side h3{font-size:22px}.buyer-shell{margin:20px 16px;padding:24px 20px}.buyer-shell h1{font-size:36px}.buyer-summary{padding:24px 18px}.buyer-summary dl{font-size:14px}.link-output input{min-width:120px}.details summary{font-size:15px}.details p{font-size:14px}#toast{bottom:90px;font-size:13px}.empty h2{font-size:28px}.empty p{font-size:16px}}
@media(max-width:390px){.topbar{padding:14px 16px}.brand{font-size:16px}.home-hero{padding-left:16px;padding-right:16px}.hero-paper{padding:30px 16px 26px}.hero-paper h1{font-size:39px}.hero-paper p{font-size:15px}.hero-actions{flex-direction:column;gap:14px}.hero-actions .button{width:100%;max-width:260px}.home-subjects{padding-left:16px;padding-right:16px}.subject-grid{gap:18px 12px}.subject-art{height:120px}.subject-card h3{font-size:18px;min-height:64px}.subject-card-body .eyebrow{font-size:7px}.subject-card-bottom{font-size:9px}.circle-arrow{width:24px;height:24px}.how-section{padding-left:16px;padding-right:16px}.how-paper{padding:28px 22px}.task-card{padding:24px 20px}.task-prompt{font-size:22px}.task-tools .button{font-size:11px;padding:8px 7px}.session-top .button{font-size:10px}.entry-body{padding:22px 10px}.entry-body h2{font-size:29px}.entry-body .button{font-size:13px}.site-footer>div{gap:20px}.field{min-width:90px}.fields{gap:12px}.main:not(.home-main):not(.lesson-main){padding:24px 18px}.page-heading h1{font-size:34px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

@media(max-width:540px){.subject-grid{grid-template-columns:minmax(0,1fr);gap:24px}.subject-card{padding:12px;border-radius:24px}.subject-art{height:190px}.subject-card-body{padding:24px 12px 12px}.subject-card-body .eyebrow{font-size:10px;margin-bottom:12px}.subject-card h3{font-size:26px;min-height:0;margin-bottom:24px}.subject-card-bottom{font-size:13px;align-items:center;gap:10px}.circle-arrow{width:36px;height:36px}.circle-arrow .icon{width:20px;height:20px}}

#topics,#internal{scroll-margin-top:120px}@media(max-width:980px){#topics,#internal{scroll-margin-top:180px}}@media(max-width:700px){#topics,#internal{scroll-margin-top:96px}}
/* Exam navigation: number → task type → a complete exam-style problem. */
#numbers{scroll-margin-top:120px}.resume-exam{display:inline-block;margin-top:25px;font-size:13px;text-underline-offset:4px}.exam-number-rail{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0 28px}.exam-number{width:48px;height:48px;display:grid;place-items:center;border:1px solid var(--ink);border-radius:50%;text-decoration:none;background:white;font-size:19px;transition:transform 150ms ease,background 150ms ease}.exam-number:hover{background:var(--ink);color:white;transform:translateY(-2px)}.exam-filters a{border:1px solid var(--line);border-radius:5000px;min-height:44px;padding:10px 18px;background:white;color:var(--ink);font-size:14px;text-decoration:none}.exam-filters a.active{color:white;background:var(--iris);border-color:var(--iris)}.exam-group{margin:40px 0 52px}.exam-group-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin:0 0 20px}.exam-group-heading h2{font-size:30px;margin:0}.exam-group-heading>span{font-family:ui-monospace,monospace;font-size:12px;white-space:nowrap}.exam-group>p{font-size:14px;margin:0 0 22px}.exam-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.exam-number-card{display:flex;align-items:start;gap:18px;border:1px solid var(--line);border-radius:24px;background:white;box-shadow:0 2px 0 var(--ink);padding:24px;text-decoration:none;transition:transform 150ms ease,box-shadow 150ms ease}.exam-number-card:hover{transform:translateY(-3px);box-shadow:0 5px 0 var(--ink)}.exam-card-number{font-size:34px;line-height:1;letter-spacing:-.04em;padding-top:3px}.exam-number-card>div{flex:1;min-width:0}.exam-number-card h3{font-size:21px;line-height:1.2;margin-bottom:13px;letter-spacing:-.025em}.exam-number-card p{font-size:13px;line-height:1.5;color:var(--muted);margin-bottom:22px}.exam-card-footer{display:flex;align-items:center;justify-content:space-between;font-size:11px;gap:10px;color:var(--muted)}.exam-card-footer .icon{width:17px;color:var(--ink)}.written-boundary{padding:24px;background:var(--surface-2);border-radius:24px;margin:32px 0}.written-boundary p{font-size:15px;margin:15px 0 0}.written-boundary .tag{background:white}.exam-source{font-size:12px;line-height:1.6;color:var(--muted);margin:24px 0 0}.exam-source a{color:inherit;text-underline-offset:3px}.exam-basics-band{max-width:1200px;margin:0 auto 64px;padding:44px;border-radius:32px;background:#fff;display:flex;gap:32px;align-items:center;justify-content:space-between}.exam-basics-band h2{font-size:38px;margin-top:20px}.exam-basics-band p{font-size:16px;color:var(--muted);max-width:560px}.exam-basics-band .button{white-space:nowrap}.exam-selector>.filter-row{margin-bottom:32px}.page-heading>.eyebrow{margin-bottom:22px}.exam-detail-heading{display:flex;gap:30px;align-items:start;margin:15px 0 40px}.exam-large-number{font-size:104px;line-height:.9;letter-spacing:-.06em}.exam-detail-heading .eyebrow{margin-bottom:15px}.exam-detail-heading h1{font-size:48px;max-width:650px;margin-bottom:20px}.exam-detail-heading p{font-size:18px;line-height:1.5;color:var(--muted);max-width:680px}.exam-mix{padding:28px 30px;background:var(--bg);border-radius:24px;display:flex;gap:24px;justify-content:space-between;align-items:center;margin-bottom:28px}.exam-mix h2{font-size:25px;margin:0 0 8px}.exam-mix p{font-size:15px;color:var(--muted);margin:0}.exam-mix .button{font-size:15px;white-space:nowrap}.exam-type{display:grid;grid-template-columns:35px minmax(0,1fr) auto;align-items:start;gap:22px;border-bottom:1px solid var(--line);padding:32px 0}.exam-type-index{font:12px/1.4 ui-monospace,monospace;padding-top:6px}.exam-type h2{font-size:29px;margin-bottom:13px}.exam-type p{font-size:16px;color:var(--muted);line-height:1.55;max-width:700px}.exam-type .button{font-size:15px;min-height:44px;align-self:center}.main.exam-main:not(.home-main):not(.lesson-main){max-width:1200px;background:none;border:0;box-shadow:none;margin:36px auto 64px;padding:0 24px;border-radius:0}.exam-run-nav{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:12px}.exam-run-nav .back{margin:0}.exam-run-nav .button{font-size:13px}.exam-workspace{max-width:820px;margin:0 auto}.exam-workspace.has-context{max-width:none;display:grid;grid-template-columns:minmax(300px,.85fr) minmax(0,1.15fr);gap:28px;align-items:start}.exam-context{background:white;border:1px solid var(--line);border-radius:24px;overflow:hidden}.exam-context>summary{padding:20px 24px;font-size:14px;cursor:pointer;line-height:1.5}.exam-context>div{padding:4px 24px 28px}.exam-context h2{font-size:27px;line-height:1.15}.exam-context p{font-size:15px;line-height:1.6}.exam-table-wrap{overflow-x:auto;margin:24px 0 0;border:1px solid var(--line);border-radius:16px}.exam-table{width:100%;border-collapse:collapse;font-size:13px;line-height:1.4;text-align:left}.exam-table td,.exam-table th{padding:12px 10px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);font-weight:400}.exam-table th{background:var(--bg);font-size:12px}.exam-table td{font-variant-numeric:tabular-nums}.exam-table td:last-child,.exam-table th:last-child{border-right:0}.exam-table tr:last-child td{border-bottom:0}.exam-table caption{caption-side:bottom;padding:12px;text-align:left;color:var(--muted);font-size:11px}.exam-task{padding:32px}.exam-task-label{display:flex;align-items:center;gap:14px;margin-bottom:24px;font-size:12px;color:var(--muted);flex-wrap:wrap}.exam-task .task-prompt{font-size:26px;line-height:1.45}.exam-figure{max-width:390px;margin:16px auto 28px;color:var(--ink)}.exam-figure>svg{width:100%;height:auto;max-height:260px}.exam-figure figcaption{font-size:18px;text-align:center;margin-bottom:10px}.exam-graphs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:24px 0}.exam-graphs .exam-figure{margin:0}.exam-statements{font-size:18px;line-height:1.6;padding-left:25px;margin:24px 0 32px}.exam-statements li+li{margin-top:14px}#exam-answer-form .actions{margin-top:24px}#exam-answer-form .button{font-size:15px}.exam-next-row{margin:24px 0 32px}.exam-basic-links{display:flex;flex-direction:column;align-items:start;gap:12px;padding:16px;background:white;border-radius:16px}.exam-review-list{margin-top:40px}.exam-review-list .details{padding:20px 24px;border:1px solid var(--line);border-radius:20px;background:white;margin-top:16px}.exam-review-list .solution-list{margin-top:24px;font-size:16px}.exam-review-context{background:var(--bg);padding:24px;border-radius:20px;margin-top:24px}.exam-review-context h2{font-size:24px}.exam-history{margin:32px 0 48px}.exam-history>h2{font-size:28px}.exam-history .history-row:last-child{border-bottom:0}
@media(max-width:1270px){.exam-basics-band{margin-left:32px;margin-right:32px}.exam-card-grid{gap:18px}.exam-number-card{padding:22px 18px;gap:13px}.exam-number-card h3{font-size:20px}.exam-card-number{font-size:30px}}
@media(max-width:980px){#numbers{scroll-margin-top:180px}.exam-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.exam-workspace.has-context{grid-template-columns:1fr}.exam-context{max-width:none}.exam-context>div{display:block}.exam-context .exam-figure{max-width:280px}.exam-detail-heading h1{font-size:42px}.exam-mix{flex-wrap:wrap}.exam-large-number{font-size:88px}.exam-type h2{font-size:26px}.exam-basics-band{align-items:start;flex-direction:column}.exam-graphs .exam-figure{max-width:300px}.exam-run .session-top{font-size:12px}}
@media(max-width:700px){#numbers{scroll-margin-top:100px}.exam-number{width:42px;height:42px;font-size:17px}.exam-number-rail{gap:8px;margin:10px 0 24px}.exam-filters{gap:8px}.exam-filters a{font-size:12px;padding:10px 14px;min-height:40px}.exam-card-grid{grid-template-columns:1fr;gap:16px}.exam-number-card{padding:24px;gap:22px}.exam-card-number{font-size:36px}.exam-number-card h3{font-size:22px}.exam-number-card p{font-size:14px;margin-bottom:20px}.exam-card-footer{font-size:12px}.exam-group{margin:32px 0 40px}.exam-group-heading h2{font-size:27px;max-width:230px}.exam-group-heading>span{font-size:10px}.exam-group>p{font-size:13px}.exam-basics-band{padding:28px 24px;margin:0 16px 40px;gap:16px}.exam-basics-band h2{font-size:34px}.exam-basics-band .eyebrow{font-size:9px}.exam-basics-band p{font-size:15px}.written-boundary{padding:22px}.written-boundary p{font-size:14px}.exam-detail-heading{gap:18px;margin-bottom:28px;flex-direction:column}.exam-large-number{font-size:72px;line-height:1}.exam-detail-heading h1{font-size:37px}.exam-detail-heading p{font-size:16px}.exam-detail-heading .eyebrow{font-size:10px}.exam-mix{padding:24px 20px;gap:20px}.exam-mix h2{font-size:24px}.exam-mix p{font-size:14px}.exam-mix .button{font-size:13px;padding:12px 16px;white-space:normal}.exam-type{grid-template-columns:22px minmax(0,1fr);gap:14px;padding:28px 0}.exam-type h2{font-size:26px;line-height:1.2}.exam-type p{font-size:15px}.exam-type .button{grid-column:2;justify-self:start;margin-top:4px}.main.exam-main:not(.home-main):not(.lesson-main){padding:0 16px;margin:20px auto 40px}.exam-run-nav{align-items:start;gap:12px}.exam-run-nav .back{font-size:12px;max-width:190px}.exam-run-nav .button{font-size:10px;padding:8px;max-width:110px;min-height:40px}.exam-run .session-top{font-size:11px;gap:15px}.exam-run .session-top>span:last-child{white-space:nowrap}.exam-context>summary{font-size:13px;padding:18px 20px}.exam-context>div{padding:2px 20px 24px}.exam-context h2{font-size:26px}.exam-context p{font-size:14px}.exam-table{font-size:12px;min-width:265px}.exam-table th{font-size:11px}.exam-table th,.exam-table td{padding:10px 8px}.exam-task{padding:24px 20px}.exam-task .task-prompt{font-size:23px;line-height:1.45;margin-bottom:26px}.exam-task-label{font-size:11px;gap:10px;margin-bottom:22px}.exam-task-label .tag{font-size:10px}.exam-figure>svg{max-height:230px}.exam-statements{font-size:16px;line-height:1.55;padding-left:22px}.exam-graphs{grid-template-columns:1fr;gap:22px}.exam-graphs .exam-figure{max-width:300px;width:100%;margin:auto}.exam-source{font-size:11px}.exam-next-row .button{font-size:14px}.exam-review-list .details{padding:20px}.exam-review-list .solution-list{font-size:15px}.exam-review-context{padding:20px 16px}.exam-history>h2{font-size:25px}}

/* A learner opens one authored hint at a time. */
.exam-hints{margin-top:24px;padding:28px 32px;background:white;border-radius:24px}
.exam-hints-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:24px}
.exam-hints-heading h2{font-size:25px;margin:0}.exam-hints-heading>span{font-size:13px;color:var(--muted);white-space:nowrap}
.exam-hint-list{padding:0;margin:0;list-style:none}.exam-hint-list>li+li{border-top:1px solid var(--line);padding-top:24px;margin-top:24px}
.exam-hint-list h3{display:flex;align-items:center;gap:12px;font-size:18px;line-height:1.4;margin:0 0 12px;scroll-margin:180px 0 24px}
.exam-hint-list h3>span{display:grid;place-items:center;flex:0 0 28px;height:28px;border-radius:50%;background:var(--bg);font-size:13px;color:var(--iris)}
.exam-hint-list p{font-size:17px;line-height:1.65;margin:0;max-width:65ch}.exam-hint-list .exam-figure{max-width:330px;margin:20px auto 0}
.exam-hint-list .hint-figure-caption{font-size:13px;line-height:1.5;color:var(--muted);text-align:left;margin:12px 0 0}
.exam-hint-actions{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:26px}.exam-hint-actions .button{font-size:14px}
.exam-help-tools{margin:16px 0}.exam-help-tools:empty{display:none}.exam-help-tools .button{font-size:14px;min-height:44px}.exam-help-tools .hint-button,.exam-hint-actions .hint-button{gap:4px;padding-left:13px}.task-tools .button.hint-button .hint-icon,.exam-hint-actions .button.hint-button .hint-icon{width:38px;height:42px;margin:-8px 0;transition:filter 150ms ease,transform 150ms ease}.hint-button:hover .hint-icon,.hint-button:focus-visible .hint-icon{background:radial-gradient(ellipse at 50% 43%,rgba(255,211,70,.45) 0%,rgba(255,222,110,.2) 35%,transparent 65%);filter:drop-shadow(0 0 2px rgba(225,175,25,.2));transform:scale(1.05)}.hint-button:active .hint-icon{background:radial-gradient(ellipse at 50% 43%,rgba(255,211,70,.55) 0%,rgba(255,222,110,.25) 35%,transparent 65%);filter:drop-shadow(0 0 2px rgba(225,175,25,.25));transform:scale(.94)}.exam-collapse-actions{display:flex;justify-content:flex-end;margin-top:24px}.exam-full-solution h2{scroll-margin:180px 0 24px}
.exam-result-stats{margin:24px 0 0;display:flex;gap:24px;flex-wrap:wrap}.exam-result-stats>div{display:flex;align-items:baseline;gap:10px}.exam-result-stats dt{font-size:14px;color:var(--muted)}.exam-result-stats dd{font-size:21px;font-variant-numeric:tabular-nums;margin:0}
.exam-history .exam-history-help{font-size:13px;line-height:1.65}.exam-review-hints{margin-top:24px}.exam-review-hints>summary{font-size:15px;cursor:pointer}.exam-review-hints .exam-hint-list{margin-top:20px}
@media(max-width:700px){.exam-hints{padding:24px 20px}.exam-hints-heading{gap:10px;margin-bottom:24px}.exam-hints-heading h2{font-size:23px}.exam-hints-heading>span{font-size:11px}.exam-hint-list h3{font-size:17px;align-items:start;scroll-margin-top:24px}.exam-hint-list p{font-size:16px}.exam-hint-actions{align-items:stretch;flex-direction:column}.exam-hint-actions .button{justify-content:center;min-height:46px}.exam-help-tools .button{font-size:14px;padding:12px 16px}.task-tools .button.hint-button .hint-icon,.exam-hint-actions .button.hint-button .hint-icon{width:34px;height:38px}.exam-result-stats{gap:12px;flex-direction:column}.exam-full-solution h2{scroll-margin-top:24px}}

/* Full practice exams: settings, persistent answer sheet and self-assessment. */
.mock-setup{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;margin:40px 0}
.mock-setup .field{max-width:none}.mock-presets{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}.mock-presets .button{font-size:14px}
.mock-options{border:0;padding:0;margin:30px 0}.mock-options legend{font-size:20px;margin-bottom:22px}.mock-options>label{display:flex;align-items:start;gap:14px;margin-bottom:24px;font-size:17px;cursor:pointer}.mock-options input{width:20px;height:20px;flex:0 0 20px;accent-color:var(--iris);margin-top:3px}.mock-options small{display:block;color:var(--muted);font-size:14px;line-height:1.5;margin-top:7px}
.mock-about{padding-top:10px}.mock-about h2{font-size:28px}.mock-about p{font-size:16px;line-height:1.65;color:var(--muted)}.mock-resume{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--bg);padding:24px;border-radius:24px;margin:30px 0}.mock-resume h2{font-size:24px;margin-bottom:8px}.mock-resume p{font-size:14px;margin:0}
.mock-run-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:30px}.mock-run-heading h1{font-size:38px;margin:8px 0 12px}.mock-run-heading .back{margin:0}.mock-run-heading p{font-size:13px;color:var(--muted);margin:0}.mock-clock{text-align:right;white-space:nowrap}.mock-clock>span{display:block;font-size:12px;color:var(--muted);margin-bottom:7px}.mock-clock strong{font:400 27px/1.2 ui-monospace,monospace;font-variant-numeric:tabular-nums}
.mock-workspace{display:grid;grid-template-columns:210px minmax(0,1fr);align-items:start;gap:32px}.mock-task-map{position:sticky;top:150px}.mock-task-map h2{font-size:22px}.mock-task-map>p{font-size:12px;line-height:1.5;margin:16px 0}.mock-task-map>.button{font-size:13px;width:100%;padding:10px;min-height:44px}
#mock-numbers{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}.button.mock-number{position:relative;display:grid;place-items:center;min-height:38px;padding:5px;font-size:14px;background:white;color:var(--ink);border:1px solid var(--line);border-radius:10px;box-shadow:none;transform:none}.button.mock-number.answered{background:#dce8ff}.button.mock-number.correct{background:#d1e9d8}.button.mock-number.incorrect{background:#ffe0d9}.button.mock-number[aria-current]{border:2px solid var(--iris);color:var(--iris)}.mock-number>span{position:absolute;right:3px;top:-5px;font-size:20px}.mock-number.disabled{text-decoration:line-through}
.mock-question{min-width:0}.mock-question .exam-context{margin-bottom:24px}.mock-question-top{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:18px;font-size:15px}.mock-question-top .button{font-size:13px;padding:8px 12px;min-height:40px}.mock-question .task-prompt{font-size:24px}.mock-question textarea{min-height:170px;line-height:1.6;font-size:17px}.mock-paper-answer{margin:20px 0}.mock-save-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:20px}.mock-save-row>span{font-size:12px;line-height:1.5;color:var(--muted)}.mock-next{justify-content:space-between;margin:28px 0}.mock-finish-confirm{background:white;padding:28px;border:1px solid var(--ink);border-radius:24px;margin:24px 0}.mock-finish-confirm h2{font-size:27px}.mock-finish-confirm p{font-size:16px;line-height:1.55}
.mock-score{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:36px 0}.mock-score dt{font-size:13px;color:var(--muted);margin-bottom:10px}.mock-score dd{margin:0;font-size:24px;font-weight:400}.mock-result .mock-result-note{font-size:15px;line-height:1.6}.mock-resume-text{padding:28px;background:white;border-radius:24px;margin:32px 0}.mock-resume-text h2{font-size:27px}.mock-resume-text p{font-size:16px;line-height:1.65}.mock-resume-text .exam-basic-links{padding:12px 0 0}.mock-review-list{margin:32px 0}.mock-review{background:white;border:1px solid var(--line);border-radius:20px;padding:22px 26px;margin-bottom:14px}.mock-review>summary{font-size:17px;line-height:1.5}.mock-review>p{font-size:18px;line-height:1.6;margin-top:24px}.mock-review h3{font-size:21px;margin-top:28px}.mock-your-answer{margin:24px 0;padding:20px;background:var(--bg);border-radius:14px}.mock-your-answer h3{font-size:17px;margin:0 0 12px}.mock-your-answer p{white-space:pre-wrap;overflow-wrap:anywhere;font-size:16px;line-height:1.6;margin:0}.mock-assessment{border:0;padding:0;margin:32px 0 0}.mock-assessment legend{font-size:21px;margin-bottom:16px}.button.mock-criterion{display:flex;align-items:start;justify-content:start;gap:20px;text-align:left;white-space:normal;width:100%;border:1px solid var(--line);background:white;color:var(--ink);box-shadow:none;border-radius:14px;margin:10px 0;font-size:15px;line-height:1.6;font-weight:400;padding:18px;transform:none}.mock-criterion>span{flex:0 0 62px;color:var(--iris)}.button.mock-criterion[aria-pressed="true"]{border-color:var(--iris);background:var(--bg)}
@media(max-width:980px){.mock-setup{gap:30px}.mock-workspace{grid-template-columns:165px minmax(0,1fr);gap:22px}.mock-task-map{top:180px}.mock-question .task-card{padding:24px}.mock-clock strong{font-size:23px}}
@media(max-width:700px){.nav{grid-template-columns:repeat(5,minmax(0,1fr))}.nav a{font-size:10px}.mock-setup{grid-template-columns:1fr;gap:30px;margin-top:28px}.mock-presets{gap:10px}.mock-presets .button{font-size:12px;padding:10px 14px}.mock-options>label{font-size:16px}.mock-options small{font-size:13px}.mock-about h2{font-size:25px}.mock-resume{align-items:start;flex-direction:column;padding:22px}.mock-resume h2{font-size:23px}.mock-run-heading{gap:12px;align-items:start;flex-wrap:wrap}.mock-run-heading h1{font-size:31px}.mock-run-heading p{font-size:12px;max-width:200px}.mock-clock strong{font-size:21px}.mock-clock>span{font-size:11px}.mock-workspace{grid-template-columns:1fr;gap:24px}.mock-task-map{position:static}.mock-task-map h2{font-size:21px;margin-bottom:14px}#mock-numbers{grid-template-columns:repeat(9,minmax(0,1fr));gap:5px}.button.mock-number{min-height:34px;font-size:12px;border-radius:9px}.mock-task-map>.button{width:auto;padding:10px 16px}.mock-question-top{gap:12px;font-size:14px}.mock-question .task-prompt{font-size:22px}.mock-question textarea{font-size:16px}.mock-save-row{gap:12px}.mock-next .button{font-size:13px;padding:12px 16px}.mock-score{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 18px}.mock-score dd{font-size:22px}.mock-resume-text{padding:24px 20px}.mock-resume-text h2{font-size:25px}.mock-review{padding:20px 18px}.mock-review>summary{font-size:15px}.mock-review>p{font-size:16px}.mock-review .solution-list{font-size:15px}.mock-review .exam-context>div{padding:12px}.button.mock-criterion{font-size:14px;gap:10px;padding:16px 12px}.mock-criterion>span{flex-basis:48px}.mock-assessment legend{font-size:20px}.mock-your-answer{padding:16px}.mock-finish-confirm{padding:24px 20px}.mock-finish-confirm h2{font-size:24px}}

.mock-local-draft{white-space:pre-wrap;overflow-wrap:anywhere}
@media(max-width:700px){.nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr))}.nav a{min-width:0;padding:6px 4px}.mock-task-map #mock-numbers{grid-template-columns:repeat(6,minmax(0,1fr))}.mock-number{min-height:40px}}

/* User-supplied transparent illustrations. The surrounding space stays quiet. */
.paper-shape{position:absolute;display:block;max-width:none;height:auto;user-select:none}
.shape-pentagon-yellow{width:420px;left:calc(50% - 760px);top:-32px;transform:rotate(-8deg)}
.shape-circle-blue{width:420px;right:calc(50% - 740px);top:8px}
.shape-triangle-green{width:300px;left:calc(50% - 570px);bottom:-48px;transform:rotate(-13deg)}
.shape-star-pink{width:300px;right:calc(50% - 600px);bottom:-38px;transform:rotate(9deg)}
.subject-art .subject-illustration{display:block;width:100%;height:100%;object-fit:contain;transform:none}
.entry-option .subject-art{height:260px;background:var(--bg)}
@media(min-width:1500px){.shape-pentagon-yellow{left:calc(50% - 850px);width:480px}.shape-circle-blue{right:calc(50% - 840px);width:470px}.shape-triangle-green{left:calc(50% - 640px);width:330px}.shape-star-pink{right:calc(50% - 660px);width:340px}}
@media(max-width:980px){.shape-pentagon-yellow{left:-140px;top:-20px;width:300px}.shape-circle-blue{right:-170px;top:12px;width:320px}.shape-triangle-green{left:-75px;bottom:-38px;width:230px}.shape-star-pink{right:-100px;bottom:-40px;width:250px}}
@media(max-width:700px){.shape-pentagon-yellow{left:-65px;top:-15px;width:160px}.shape-circle-blue{right:-82px;top:32px;width:190px}.shape-triangle-green{left:-70px;bottom:-28px;width:150px}.shape-star-pink{right:-60px;bottom:-45px;width:160px}.entry-option .subject-art{height:230px}}

.preview-intro{max-width:1200px;margin:0 auto;padding:42px 0 22px;scroll-margin-top:140px}
.preview-heading{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:28px}.preview-heading h2{font-size:36px;margin:0 0 12px}.preview-heading p{max-width:610px;color:var(--muted);margin:0}.preview-heading>a{font-size:14px;flex:none}
.preview-topics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line);gap:32px;padding:28px 0}.preview-topic>span{font-size:13px;color:var(--muted)}.preview-topic h3{font-size:25px;margin:12px 0}.preview-topic p{font-size:15px;color:var(--muted);margin-bottom:22px}.preview-more{font-size:14px;line-height:1.8;margin:24px 0 0}.preview-more a{display:inline}
.preview-note{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:22px 24px;margin:0 0 32px;font-size:15px}.preview-note p{margin:0;max-width:630px;line-height:1.6}.preview-note strong{font-weight:500;color:var(--ink)}
.preview-label{display:inline-flex;margin:10px 0 0;font-size:12px;line-height:1.4;color:var(--muted);gap:6px}.preview-label.is-free{color:var(--iris)}.exam-type .preview-label{display:block}.exam-type .access-cta{font-size:14px}.preview-run-note{font-size:13px;color:var(--muted);margin:0 0 20px}
.access-plans{display:grid;grid-template-columns:1fr 1fr;gap:44px}.access-plans h2{font-size:28px;margin-top:0}.access-free{padding:28px 0}.access-full{padding:28px 32px;background:var(--bg);border-radius:20px;border:1px solid var(--line)}.access-full.access-active{max-width:680px}.access-plan-price{font-size:42px;letter-spacing:-.03em;margin:24px 0 16px}.access-plan-price span{font-size:16px;letter-spacing:0}.access-test-note{font-size:13px;line-height:1.6;color:var(--muted);margin:24px 0 0;max-width:360px}.access-order{border-top:1px solid var(--line);padding-top:24px;margin-top:24px}.access-order>.button{margin-bottom:16px}.access-order .link-output{margin:16px 0;flex-wrap:wrap}.access-order .link-output input{width:100%;min-width:0}
@media(max-width:1270px){.preview-intro{margin:0 32px}}
@media(max-width:980px){.preview-heading{align-items:start;flex-direction:column}.access-plans{gap:28px}.access-full{padding:24px}.access-plan-price{font-size:36px}}
@media(max-width:700px){.preview-intro{margin:0 20px;padding-top:28px;scroll-margin-top:100px}.preview-heading h2{font-size:30px}.preview-topics{grid-template-columns:1fr;gap:0;padding:0}.preview-topic{padding:24px 0}.preview-topic+.preview-topic{border-top:1px solid var(--line)}.preview-topic h3{font-size:24px}.preview-topic p{margin-bottom:18px}.preview-more{font-size:13px}.preview-note{padding:20px;font-size:14px;align-items:start}.access-plans{grid-template-columns:1fr;gap:24px}.access-full{padding:24px 20px}.access-free{padding:8px 0}.access-plans h2{font-size:26px}.access-plan-price{font-size:34px}.access-cta{white-space:normal}}

/* Student progress: concrete evidence and the next task, with quiet table-like rows. */
.profile-heading{display:flex;justify-content:space-between;gap:28px;align-items:center;margin-bottom:32px}.profile-heading h1{font-size:clamp(34px,4.5vw,62px);line-height:1.07;margin:18px 0;overflow-wrap:anywhere}.profile-heading p{color:var(--muted);font-size:18px}.profile-heading .button{white-space:nowrap}.profile-guest{display:flex;align-items:center;gap:30px;padding:22px 26px;border-radius:18px;background:var(--bg);margin-bottom:28px}.profile-guest p{font-size:14px;line-height:1.6;margin:0;max-width:740px}.profile-guest a{white-space:nowrap;font-size:14px}.profile-period{display:flex;align-items:center;justify-content:space-between;gap:16px}.auth-tab{font-size:14px;text-decoration:none;color:var(--ink);border:1px solid var(--line);padding:12px 20px;border-radius:100px;min-height:44px}.auth-tab.active{background:var(--ink);color:white;border-color:var(--ink)}.profile-totals{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin:8px 0 42px;padding-bottom:32px;border-bottom:1px solid var(--line)}.profile-totals dt{font-size:14px;line-height:1.5}.profile-totals dd{margin:12px 0;font-size:52px;line-height:1;letter-spacing:-.045em;font-variant-numeric:tabular-nums}.profile-totals dd span{font-size:24px;color:var(--muted);letter-spacing:-.02em}.profile-totals small{color:var(--muted);font-size:12px;line-height:1.5;display:block}.student-progress section{margin:32px 0 44px}.student-progress h2{font-size:30px;line-height:1.15}.student-progress h3{font-size:21px;line-height:1.3;margin:0 0 10px}.student-progress .section-row{display:flex;justify-content:space-between;gap:20px;align-items:baseline}.student-progress .section-row h2{margin:0}.profile-recommendations article{display:flex;gap:22px;padding:24px 0;border-bottom:1px solid var(--line)}.profile-recommendations article:last-child{border-bottom:0}.recommendation-index{font:14px ui-monospace,monospace;color:var(--iris);padding-top:5px}.profile-recommendations p{font-size:16px;max-width:720px;line-height:1.6;color:var(--muted)}.profile-recommendations .text-link{font-size:15px}.profile-recommendations .small{font-size:12px}.profile-goal{display:grid;grid-template-columns:1fr 1fr;gap:44px;padding:32px;background:var(--bg);border-radius:24px}.profile-goal .eyebrow{font-size:11px}.profile-goal h2{font-size:40px;margin-top:18px}.profile-goal p{font-size:15px;line-height:1.6}.profile-goal .small{font-size:12px}.profile-goal .text-link{display:block;width:fit-content;margin-top:18px;font-size:14px}.goal-result strong{font-weight:400;font-size:30px;display:block;margin-top:10px}.profile-numbers>p{font-size:15px;line-height:1.6;max-width:820px}.progress-number{border-bottom:1px solid var(--line)}.progress-number>summary{display:flex;gap:20px;align-items:center;list-style:none;cursor:pointer;padding:22px 0}.progress-number>summary::-webkit-details-marker{display:none}.progress-number>summary:after{content:'+';font-size:23px;flex:0 0 16px;text-align:center}.progress-number[open]>summary:after{content:'−'}.progress-number-id{flex:0 0 44px;font-size:32px;font-variant-numeric:tabular-nums;letter-spacing:-.04em}.progress-number-title{flex:1;font-size:19px;line-height:1.3}.progress-number-title small{display:block;font-size:12px;line-height:1.5;color:var(--muted);margin-top:8px}.progress-status{font-size:11px;padding:7px 10px;border-radius:8px;white-space:nowrap;background:var(--bg);color:var(--muted)}.status-review{background:#fff0ca;color:#665010}.status-steady{background:#e6f6ec;color:#235c3b}.status-few{background:#edf0ff;color:#444496}.progress-number-body{padding:0 0 10px 64px}.progress-type{display:flex;justify-content:space-between;gap:24px;padding:24px 0;border-top:1px solid var(--line)}.progress-type h3{font-size:18px}.progress-type p{font-size:13px;line-height:1.5;color:var(--muted);margin:8px 0}.progress-type-action{display:flex;flex-direction:column;align-items:flex-end;gap:12px;flex:0 0 160px}.progress-type-action .small{font-size:12px;text-align:right}.profile-method p{font-size:14px;line-height:1.7}.profile-exam-row{display:flex;justify-content:space-between;gap:24px;padding:25px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)}.profile-exam-row:hover h3{text-decoration:underline;text-underline-offset:4px}.profile-exam-row p{font-size:12px;color:var(--muted);line-height:1.6;margin:0}.profile-exam-score{text-align:right;flex:0 0 150px}.profile-exam-score strong{font-size:32px;font-weight:400}.profile-exam-score strong span{font-size:18px;color:var(--muted)}.profile-exam-score small{display:block;margin-top:7px;font-size:12px;line-height:1.5}.profile-written,.profile-resume{display:flex;justify-content:space-between;gap:24px;padding:16px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.6}.profile-written>span:last-child{color:var(--muted)}.profile-bottom{display:grid;grid-template-columns:1fr 1fr;gap:44px}.activity-grid{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:5px;margin:24px 0 18px}.activity-day{display:flex;flex-direction:column;align-items:center;gap:6px;padding:8px 2px;background:var(--bg);border-radius:6px;color:var(--muted);font-size:10px;min-width:0}.activity-day b{font-weight:400;font-size:13px}.activity-day.has-activity{background:var(--ink);color:white}.profile-bottom p{font-size:14px;line-height:1.6}.profile-bottom p.small{font-size:12px}.profile-foundation{display:block;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line);padding:12px 0;font-size:14px}.profile-foundation small{display:block;color:var(--muted);margin-top:5px}.profile-foundation+.text-link{display:block;margin-top:18px}#goal-settings{scroll-margin-top:140px}.account-view .page-heading p{overflow-wrap:anywhere}.account-view .details{margin-top:28px}.auth-tabs{margin-bottom:26px}
@media(max-width:900px){.profile-totals{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.profile-goal,.profile-bottom{grid-template-columns:1fr;gap:24px}.profile-heading{align-items:start;flex-direction:column}.profile-guest{align-items:start;flex-direction:column;gap:14px}.activity-grid{max-width:480px}.student-progress h2{font-size:27px}}
@media(max-width:600px){.profile-heading h1{font-size:38px}.profile-heading .eyebrow{font-size:10px}.profile-heading p{font-size:16px}.profile-period{align-items:start;flex-direction:column;gap:0;margin-bottom:24px}.profile-period .filter-row{margin-bottom:10px}.profile-totals{gap:26px 16px}.profile-totals dt{font-size:12px}.profile-totals dd{font-size:42px}.profile-totals small{font-size:11px}.student-progress .section-row{flex-wrap:wrap;gap:12px}.student-progress .section-row>.small{font-size:12px}.profile-recommendations article{gap:15px}.profile-recommendations p{font-size:14px}.profile-goal{padding:24px 20px}.progress-number>summary{flex-wrap:wrap;gap:12px;padding:22px 0}.progress-number-title{font-size:17px;flex-basis:calc(100% - 60px)}.progress-number-id{flex-basis:30px;font-size:28px}.progress-number>summary>.progress-status{margin-left:42px}.progress-number>summary:after{margin-left:auto}.progress-number-body{padding-left:0}.progress-type{flex-direction:column;gap:8px}.progress-type-action{align-items:start;flex-basis:auto;flex-direction:row;flex-wrap:wrap}.progress-type-action .small{text-align:left}.profile-exam-row{flex-direction:column;gap:14px}.profile-exam-score{text-align:left;flex-basis:auto}.profile-written,.profile-resume{flex-direction:column;gap:6px}.profile-guest{padding:20px}.profile-goal h2{font-size:34px}.student-progress h2{font-size:26px}}
.exam-type[id]{scroll-margin-top:150px}

.exam-group-written{padding:32px;border-radius:28px;background:var(--surface-2)}
.exam-group-written .exam-card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.exam-group-written .exam-number-card{box-shadow:none}
.written-answer .field{max-width:none}
.written-answer textarea{min-height:210px;border-radius:20px;font-size:17px;line-height:1.65;background:#fff}
.written-paper-answer{width:fit-content;margin:18px 0 0;color:var(--ink)}
.written-assessment{border:0;padding:28px 0 0;margin:30px 0 0;border-top:1px solid var(--line)}
.written-assessment legend{font-size:22px;margin-bottom:16px}
.written-assessment-skipped h3{font-size:22px;margin:0 0 16px}.written-assessment-skipped p{padding:12px 14px;border-radius:12px;margin:8px 0;font-size:14px;line-height:1.55}.written-assessment-skipped p.selected{background:var(--bg)}.written-assessment-skipped .footnote{padding-left:0;background:none}
.written-review-criteria{margin-top:26px;padding-top:22px;border-top:1px solid var(--line)}
.written-review-criteria h3{font-size:20px}
.written-review-criteria p{padding:12px 14px;border-radius:12px;margin:8px 0;font-size:14px}
.written-review-criteria p.selected{background:var(--bg);color:var(--ink)}
.written-review-criteria strong{color:var(--iris)}
@media(max-width:700px){.exam-group-written{padding:24px 18px;margin-left:-2px;margin-right:-2px}.exam-group-written .exam-card-grid{grid-template-columns:1fr}.written-answer textarea{min-height:180px;font-size:16px}.written-assessment legend{font-size:20px}}

/* Form focus stays visible without the browser's bright blue double ring. */
input:not([type=checkbox]):not([type=radio]):focus,
input:not([type=checkbox]):not([type=radio]):focus-visible,
textarea:focus,textarea:focus-visible,select:focus,select:focus-visible{
 outline:none;
 border-color:var(--ink);
 box-shadow:0 0 0 1px var(--ink);
}

/* Native selects keep their semantics, with a calmer and roomier closed state. */
select{
 -webkit-appearance:none;
 appearance:none;
 min-height:60px;
 padding:16px 58px 16px 20px;
 border-radius:18px;
 background-color:var(--bg);
 background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='none'%3E%3Cpath d='m5 7.5 5 5 5-5' stroke='%23111118' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
 background-repeat:no-repeat;
 background-position:right 20px center;
 background-size:20px 20px;
 color:var(--ink);
 cursor:pointer;
 line-height:1.3;
 transition:border-color 150ms ease,box-shadow 150ms ease,background-color 150ms ease;
}
select:not(:focus):hover{border-color:#b9bfd0;background-color:#f7f9ff}
select:disabled{cursor:not-allowed;opacity:.65}

@media(max-width:700px){select{min-height:56px;padding:14px 52px 14px 18px;background-position:right 17px center}}

/* Registration and sign-in live in a focused window above the current task. */
body.auth-modal-open{overflow:hidden}
.auth-dialog{width:min(500px,calc(100vw - 44px));max-width:none;max-height:none;margin:auto;padding:0;border:0;border-radius:38px;background:transparent;color:var(--ink);overflow:visible}
.auth-dialog:focus,.auth-dialog:focus-visible{outline:none}
.auth-dialog::backdrop{background:rgba(17,17,24,.52);backdrop-filter:blur(6px);animation:auth-backdrop-in 180ms ease-out}
.auth-modal-card{display:flex;flex-direction:column;max-height:calc(100dvh - 44px);overflow:auto;background:#fff;border-radius:38px;box-shadow:0 28px 80px rgba(17,17,24,.24),0 3px 0 rgba(17,17,24,.9);animation:auth-dialog-in 220ms cubic-bezier(.2,0,0,1)}
.auth-modal-header{padding:27px 30px 19px}
.auth-modal-header h2{font-size:35px;line-height:1.05;letter-spacing:-.04em;margin:0 0 9px;text-wrap:balance}
.auth-modal-header p{font-size:14px;line-height:1.5;color:var(--muted);margin:0;max-width:390px;text-wrap:pretty}
.auth-modal-close{position:absolute;z-index:2;right:-30px;top:-26px;display:grid;place-items:center;width:46px;height:46px;padding:0;border:0;border-radius:50%;background:transparent;color:var(--ink);opacity:.52;box-shadow:none;transition:opacity 150ms ease,transform 150ms ease}
.auth-modal-close:hover{background:transparent;opacity:.86;transform:translateY(-1px)}
.auth-modal-close:active{opacity:1;transform:scale(.96)}
.auth-modal-close .icon{width:24px;height:24px;stroke-width:1.7}
.auth-modal-tabs{position:relative;display:grid;grid-template-columns:1fr 1fr;margin:0 30px 21px;padding:4px;border-radius:18px;background:var(--bg);isolation:isolate}
.auth-modal-tabs span{position:absolute;z-index:-1;inset:4px 50% 4px 4px;border-radius:14px;background:#fff;box-shadow:0 2px 8px rgba(17,17,24,.1);transition:transform 260ms cubic-bezier(.2,.8,.2,1)}
.auth-modal-card[data-mode="login"] .auth-modal-tabs span{transform:translateX(100%)}
.auth-modal-tabs button{position:relative;min-height:42px;padding:9px 14px;border:0;border-radius:14px;background:transparent;color:var(--muted);font-size:14px;transition:color 180ms ease}
.auth-modal-tabs button.active{color:var(--ink)}
.auth-modal-tabs button:active{transform:scale(.96)}
.auth-modal-panel{padding:0 30px 24px;opacity:1;transform:translateY(0);transition:opacity 110ms ease,transform 110ms ease}
.auth-modal-panel.is-changing{opacity:0;transform:translateY(5px)}
.auth-form{max-width:none}
.auth-form .field{max-width:none;margin-bottom:16px}
.auth-form .field label{font-size:14px}
.auth-form .field input{min-height:52px;font-size:16px;background:#f6f8fd}
.auth-submit{width:100%;margin-top:4px;justify-content:center}
.yandex-auth{width:100%;min-height:56px;justify-content:center;gap:10px;margin:0 0 17px;padding:12px 20px;border-radius:999px;background:#212121;color:#fff;border:1px solid #212121;box-shadow:none;font-size:16px;font-weight:600;line-height:1.25}.yandex-auth:hover{background:#333;color:#fff;border-color:#333}.yandex-auth>svg{display:block;flex:0 0 26px;width:26px;height:26px}.oauth-divider{display:flex;align-items:center;gap:12px;margin:0 0 17px;color:var(--muted);font-size:11px}.oauth-divider:before,.oauth-divider:after{content:"";height:1px;flex:1;background:var(--line)}.oauth-divider span{white-space:nowrap}.oauth-error{margin:0 0 16px;padding:13px 15px}.oauth-error p{margin:0;font-size:13px}
.auth-preserve{margin:11px 0 0;text-align:center;color:var(--muted);font-size:11px;line-height:1.45}
.auth-code-address{margin:0 0 20px;padding:15px 17px;border-radius:16px;background:var(--bg);color:var(--muted);font-size:14px;line-height:1.5;overflow-wrap:anywhere;text-wrap:pretty}.auth-code-address strong{color:var(--ink);font-weight:500}.auth-code-form .auth-code-input{font-size:28px;letter-spacing:.18em;text-align:center;font-variant-numeric:tabular-nums}.auth-code-actions{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:12px}.auth-code-actions button{min-height:40px;padding:8px 10px;border:0;background:transparent;color:var(--ink);font-size:13px;text-decoration:underline;text-underline-offset:4px}.auth-code-actions button:active{transform:scale(.96)}
.auth-modal-footer{display:flex;justify-content:center;align-items:center;gap:6px;padding:13px 24px;background:var(--bg);border-top:1px solid var(--line);font-size:13px;border-radius:0 0 38px 38px}
.auth-modal-footer p{margin:0;color:var(--muted)}
.auth-modal-footer button{min-height:40px;padding:8px;border:0;background:transparent;text-decoration:underline;text-underline-offset:4px;color:var(--ink)}
.task-card>.actions{margin-top:22px}
.task-card>.actions>[data-action="next"]{background:#fff;color:var(--ink);border-color:var(--ink);box-shadow:none}
.task-card>.actions>[data-action="next"]:hover{background:var(--bg);box-shadow:0 2px 0 var(--ink)}
@keyframes auth-backdrop-in{from{opacity:0}to{opacity:1}}
@keyframes auth-dialog-in{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}

@media(max-width:600px){
 .auth-dialog{width:calc(100vw - 32px);border-radius:30px}
 .auth-modal-card{max-height:calc(100dvh - 32px);border-radius:30px}
 .auth-modal-header{padding:24px 22px 17px}
 .auth-modal-header h2{font-size:31px}
 .auth-modal-header p{font-size:14px}
 .auth-modal-close{right:-18px;top:-18px;width:44px;height:44px}
 .auth-modal-tabs{margin:0 20px 19px}
 .auth-modal-panel{padding:0 20px 21px}
 .auth-modal-footer{padding:12px 18px;border-radius:0 0 30px 30px}
}
@media(prefers-reduced-motion:reduce){.auth-dialog::backdrop,.auth-modal-card{animation:none}.auth-modal-tabs span,.auth-modal-panel{transition:none}}

/* Supplied brand artwork; keep the same proportions at every viewport. */
.brand-logo{display:block;width:210px;height:auto;flex:none}.brand{min-height:44px}
@media(max-width:700px){.brand-logo{width:180px}}
@media(max-width:390px){.brand-logo{width:160px}}


/* Center-out variable-weight navigation, adapted for the existing app shell. */
.nav-label{display:inline-flex;align-items:baseline;white-space:nowrap}
.nav-label-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.nav-letter{display:inline-block;font-weight:400;font-variation-settings:'wght' 400;transition-property:font-weight,font-variation-settings;transition-duration:700ms;transition-timing-function:cubic-bezier(.2,.8,.2,1)}
.nav-step-0{transition-delay:0ms}.nav-step-1{transition-delay:15ms}.nav-step-2{transition-delay:30ms}.nav-step-3{transition-delay:45ms}.nav-step-4{transition-delay:60ms}.nav-step-5{transition-delay:75ms}.nav-step-6{transition-delay:90ms}.nav-step-7{transition-delay:105ms}.nav-step-8{transition-delay:120ms}.nav-step-9{transition-delay:135ms}
.nav a.active .nav-letter{font-weight:520;font-variation-settings:'wght' 520}
@media(hover:hover){.nav a:hover .nav-letter{font-weight:700;font-variation-settings:'wght' 700}}
.nav a:focus-visible .nav-letter{font-weight:700;font-variation-settings:'wght' 700}
@media(max-width:700px){.nav-label{display:block}.nav-letter{font-weight:inherit;font-variation-settings:normal;transition:none}.nav a.active .nav-letter{font-weight:inherit;font-variation-settings:normal}}
/* Dot Pattern: 16px spacing, 1px dots, soft viewport fade. */
body{background-color:#fafafa;isolation:isolate}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Ccircle cx='1' cy='1' r='1' fill='%239ca3af' fill-opacity='.65'/%3E%3C/svg%3E");background-repeat:repeat;background-size:16px 16px;-webkit-mask-image:radial-gradient(ellipse at center,#000 35%,transparent 100%);mask-image:radial-gradient(ellipse at center,#000 35%,transparent 100%)}

/* Rotated shapes stay fully inside the hero instead of ending on a hard crop. */
.shape-triangle-green{bottom:34px}
.shape-star-pink{bottom:28px}
@media(min-width:1500px){.shape-triangle-green{bottom:42px}.shape-star-pink{bottom:30px}}
@media(max-width:980px){.shape-triangle-green{bottom:32px}.shape-star-pink{bottom:24px}}
@media(max-width:700px){.shape-triangle-green{bottom:20px}.shape-star-pink{bottom:16px}}

/* Blog: server-rendered articles, shared brand and readable mathematical examples. */
.blog-main{max-width:1200px;margin:0 auto;padding:32px 32px 72px}.blog-crumbs{display:flex;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:13px;margin:12px 0 40px}.blog-crumbs a{text-underline-offset:4px}.blog-intro{display:grid;grid-template-columns:1.3fr 1fr;align-items:end;gap:60px;margin-bottom:64px}.blog-intro h1{font-size:clamp(48px,6vw,80px);margin:20px 0 0}.blog-intro h1 span{color:var(--iris)}.blog-intro>p{font-size:21px;line-height:1.55;max-width:400px;margin-bottom:6px}.blog-meta,.blog-byline{font-size:13px;line-height:1.5;color:var(--muted);margin:0 0 14px}.blog-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px 32px}.blog-card{min-width:0;background:#fff;border-radius:28px;overflow:hidden}.blog-art{height:230px;display:flex;align-items:center;justify-content:center;background:#e1edff}.blog-art-1{background:#fff0b0}.blog-art-2{background:#ffdce4}.blog-art img{width:220px;height:200px;object-fit:contain}.blog-card-copy{padding:28px 32px 32px}.blog-card h2{font-size:29px;line-height:1.18;margin-bottom:18px}.blog-card h2 a{text-decoration:none}.blog-card h2 a:hover{text-decoration:underline;text-underline-offset:5px}.blog-card-copy>p:not(.blog-meta){font-size:16px;line-height:1.6;color:var(--muted)}.blog-read{display:inline-flex;gap:20px;align-items:center;text-underline-offset:5px;margin-top:10px}.blog-article-head{max-width:850px;margin-bottom:48px}.blog-article-head h1{font-size:clamp(34px,4.5vw,58px);line-height:1.08}.blog-lead{font-size:22px;line-height:1.5}.blog-byline{margin-top:24px}.blog-reading-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;align-items:start}.blog-toc{position:sticky;top:130px}.blog-toc h2{font-size:18px}.blog-toc ol{padding-left:20px}.blog-toc li{font-size:14px;line-height:1.5;margin:0 0 15px}.blog-toc a{text-decoration:none}.blog-toc a:hover{text-decoration:underline}.blog-prose{background:#fff;padding:40px;border-radius:28px;min-width:0}.blog-prose section{scroll-margin-top:130px;margin-bottom:42px}.blog-prose h2{font-size:29px;line-height:1.2}.blog-prose p,.blog-prose li{font-size:18px;line-height:1.7}.blog-prose li{margin-bottom:10px}.blog-prose strong{font-weight:600}.blog-prose a:not(.button){color:#2525bc;text-underline-offset:3px}.blog-example{padding:22px 24px;background:#f0f6ff;border-left:3px solid var(--iris);margin:24px 0;overflow-wrap:anywhere}.blog-example p{margin:0 0 8px;font-variant-numeric:tabular-nums}.blog-example p:last-child{margin:0}.blog-prose details{padding:20px;border:1px solid #c5c8d1;border-radius:16px;margin-bottom:24px}.blog-prose summary{cursor:pointer;font-size:17px}.blog-prose details p{margin:16px 0 0}.blog-diagram{margin:24px 0}.blog-diagram svg{width:100%;max-width:360px;height:auto;margin:auto}.blog-diagram figcaption{font-size:14px;color:var(--muted);line-height:1.5;margin-top:14px}.blog-cta{border-top:1px solid var(--line);padding-top:32px}.blog-cta .button{font-size:16px;max-width:100%;white-space:normal;text-align:center}.blog-related{margin-top:64px}.site-footer>div{flex-wrap:wrap}
@media(min-width:981px){.nav{gap:clamp(12px,1.7vw,26px)}}
@media(max-width:700px){.nav a{min-width:0;padding-left:6px;padding-right:6px;font-size:10px}.blog-body .nav{align-items:center;height:64px}.blog-body .nav a{font-size:12px}.blog-body .account-button{width:auto;padding:0 14px}.blog-main{padding:20px 20px 40px}.blog-crumbs{margin:8px 0 28px;font-size:12px}.blog-intro{grid-template-columns:1fr;gap:24px;margin-bottom:36px}.blog-intro h1{font-size:50px}.blog-intro>p{font-size:18px}.blog-grid{grid-template-columns:1fr;gap:28px}.blog-card-copy{padding:24px}.blog-card h2{font-size:26px}.blog-art{height:190px}.blog-art img{height:170px}.blog-reading-layout{grid-template-columns:1fr;gap:24px}.blog-toc{position:static}.blog-toc ol{columns:1;margin-bottom:0}.blog-prose{padding:26px 20px;border-radius:22px}.blog-prose p,.blog-prose li{font-size:17px}.blog-prose h2{font-size:26px}.blog-lead{font-size:19px}.blog-article-head{margin-bottom:28px}.blog-example{padding:18px 16px}.blog-prose ul{padding-left:20px}.blog-related{margin-top:42px}.blog-related>h2{font-size:30px}}
@media(max-width:700px){.nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr))}.nav a{width:auto}.blog-body .nav a{font-size:11px}}

/* Full supplied article cover, with its original aspect ratio. */
.blog-art{height:auto;aspect-ratio:1672/941}.blog-art img{display:block;width:100%;height:auto;object-fit:contain}

/* Topics directory: visible links, using the existing site palette. */
.topics-intro{max-width:860px;margin:0 0 64px}.topics-intro h1{font-size:clamp(40px,5.5vw,76px);line-height:1.05;letter-spacing:-.035em;margin:16px 0 24px;text-wrap:balance}.topics-intro>p:last-child{max-width:650px;font-size:20px;line-height:1.6;color:var(--muted)}.topics-group{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;padding:36px 0;border-top:1px solid var(--line)}.topics-group h2{font-size:26px;line-height:1.2;margin:10px 0;letter-spacing:-.02em}.topics-tags{display:flex;flex-wrap:wrap;gap:12px;list-style:none;margin:0;padding:0}.topics-tags li{max-width:100%}.topics-tags a{display:flex;align-items:center;gap:16px;min-height:48px;padding:12px 20px;border:1px solid #c8cad4;border-radius:999px;background:#fff;color:var(--ink);text-decoration:none;font-size:16px;line-height:1.4;transition:background .15s,border-color .15s}.topics-tags a span{color:#3131bd}.topics-tags a:hover{background:#ededff;border-color:#7575cb}.topics-tags a:focus-visible{outline:3px solid var(--iris);outline-offset:3px}.topics-groups{margin-bottom:32px}@media(max-width:800px){.topics-group{grid-template-columns:1fr;gap:18px;padding:28px 0}.topics-group h2{font-size:24px;margin:0}.topics-intro{margin-bottom:36px}.topics-intro>p:last-child{font-size:18px}.topics-tags{gap:10px}.topics-tags a{padding:11px 16px;font-size:15px}}@media(prefers-reduced-motion:reduce){.topics-tags a{transition:none}}

/* Shared subject navigation and Russian practice. */
.subject-switch{display:flex;justify-content:center;gap:6px;margin:0 auto 32px;padding:5px;width:fit-content;border:1px solid var(--line);border-radius:32px;background:#fff}.subject-switch a{padding:10px 20px;text-decoration:none;border-radius:24px;font-size:15px}.subject-switch .selected{background:var(--ink);color:white}.home-main>.subject-switch{margin-top:24px;margin-bottom:0}.ru-variants{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:24px 0}.ru-variant{border:1px solid var(--line);border-radius:24px;padding:24px;display:flex;flex-direction:column;align-items:start;gap:12px;background:#fff}.ru-variant h3{font-size:25px;margin:0}.ru-variant p{color:var(--muted);font-size:16px;flex:1}.ru-topics{margin-bottom:36px}.ru-topic{display:flex;align-items:center;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}.ru-topic>div{flex:1}.ru-topic h3{font-size:22px;margin:0 0 6px}.ru-topic p{margin:0;font-size:14px;color:var(--muted)}.ru-task-map{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}.ru-task-map [aria-current]{background:var(--ink);color:#fff}.ru-task-map .ru-answered{border-color:#21854a}.ru-question{max-width:780px}.ru-question .task-prompt{font-size:22px;line-height:1.65;white-space:pre-line}.ru-question label{display:block;margin-bottom:8px}.ru-question input{width:100%;max-width:440px;padding:15px;border:1px solid var(--ink);border-radius:12px;font:inherit}.ru-question .actions{margin-top:28px;flex-wrap:wrap}#topics,#variants{scroll-margin-top:130px}@media(max-width:700px){.ru-variants{grid-template-columns:1fr}.ru-topic{flex-wrap:wrap;gap:12px}.ru-topic>div{min-width:65%}.ru-topic h3{font-size:19px}.ru-question .task-prompt{font-size:18px}.subject-switch a{padding:9px 15px;font-size:14px}.ru-variant{padding:22px}.ru-question .actions .button{width:100%}}

.ru-source{padding:20px 24px;background:var(--paper,#f7f8fa);border:1px solid #dce5ef;border-radius:16px;margin:24px 0}.ru-source h2,.ru-options h2{font-size:18px;margin:0 0 14px}.ru-source p{font-size:18px;line-height:1.6;margin:8px 0}.ru-options ol{padding-left:28px;margin:0}.ru-options li{padding:7px 0;font-size:20px;line-height:1.5}.ru-options li span{font-size:16px;color:#606575}.ru-definition{margin:24px 0 30px;font-size:16px;line-height:1.6}.ru-definition summary{cursor:pointer;text-decoration:underline;text-underline-offset:4px}.ru-definition p{margin:12px 0}.ru-question .answer-help{max-width:560px}

.ru-instruction{margin:28px 0}.ru-section-label{display:block;font-size:15px;font-weight:600;color:#606575;margin-bottom:10px}.ru-question .ru-instruction .task-prompt{margin:0;font-size:22px;line-height:1.5}.ru-source{background:#f5f7fa}.ru-options,.ru-rules{margin:28px 0}.ru-options h2,.ru-rules h2{font-size:18px;margin:0 0 14px}.ru-options li{padding:10px 0 10px 8px;font-size:18px;line-height:1.6}.ru-rules p{font-size:18px;line-height:1.6;margin:12px 0}.ru-question #russian-answer{margin-top:32px;padding-top:24px;border-top:1px solid #dce5ef}.ru-question .answer-help{font-size:15px;line-height:1.6;margin:12px 0 20px}@media(max-width:700px){.ru-question .ru-instruction .task-prompt{font-size:19px}.ru-source{padding:16px}.ru-source p,.ru-options li,.ru-rules p{font-size:17px}.ru-options ol{padding-left:24px}}

.ru-help{margin-top:28px;padding-top:24px;border-top:1px solid #dce5ef}.ru-help h2,.ru-help h3{font-size:18px;margin:0 0 12px}.ru-help-actions{display:flex;gap:12px;flex-wrap:wrap}.ru-hint,.ru-solution{margin-top:16px;padding:20px;background:#f5f7fa;border-radius:12px;font-size:17px;line-height:1.6}.ru-help p{margin:8px 0}

/* Reading tasks: source beside the exercise; switchable panels on small screens. */
.ru-reading-tabs{display:none}.ru-reading-layout .ru-source p{display:inline;font-size:17px;line-height:1.8}.ru-reading-layout .ru-source p::after{content:' '}.ru-reading-layout .ru-source p:nth-of-type(4n)::after{content:'';display:block;margin-bottom:12px}.ru-reading-layout .ru-source strong{color:#687080;font-weight:400}
@media(min-width:1001px){.ru-question.ru-reading-layout{max-width:1200px;width:100%;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);column-gap:36px;align-items:start}.ru-reading-layout .exam-task-label{grid-column:1/-1}.ru-reading-layout .ru-source{grid-column:1;grid-row:2/9;margin:24px 0;position:sticky;top:100px;max-height:calc(100dvh - 132px);overflow:auto;overscroll-behavior:contain}.ru-reading-layout>.ru-instruction,.ru-reading-layout>.ru-options,.ru-reading-layout>form,.ru-reading-layout>.feedback,.ru-reading-layout>.ru-help,.ru-reading-layout>.actions{grid-column:2}.ru-reading-layout .ru-instruction{margin:24px 0 12px}.ru-reading-layout .ru-options{margin:12px 0}.ru-reading-layout #russian-answer{margin-top:12px}.ru-reading-layout .ru-source h2{font-size:16px}}
@media(max-width:1000px){.ru-reading-tabs{display:flex;gap:8px;position:sticky;top:80px;z-index:3;background:white;padding:12px 0;margin-top:16px;border-bottom:1px solid #dce5ef}.ru-reading-tabs button{flex:1}.ru-reading-tabs [aria-pressed="true"]{background:var(--ink);color:white}.ru-reading-layout[data-reading-pane="text"]>.ru-instruction,.ru-reading-layout[data-reading-pane="text"]>.ru-options,.ru-reading-layout[data-reading-pane="text"]>form,.ru-reading-layout[data-reading-pane="text"]>.feedback,.ru-reading-layout[data-reading-pane="text"]>.ru-help,.ru-reading-layout[data-reading-pane="text"]>.actions{display:none}.ru-reading-layout[data-reading-pane="question"]>.ru-source{display:none}.ru-reading-layout .ru-source{margin:16px 0;padding:16px}.ru-reading-layout .ru-source p{font-size:16px}.ru-reading-layout .ru-source h2{font-size:16px}.ru-reading-layout .ru-instruction{margin-top:20px}}

.shape-ru-speech{width:300px;left:calc(50% - 650px);top:15px;transform:rotate(-6deg)}.shape-ru-pencil{width:235px;right:calc(50% - 635px);top:0}.shape-ru-paper{width:300px;left:calc(50% - 640px);bottom:10px}.shape-ru-punctuation{width:260px;right:calc(50% - 640px);bottom:5px}@media(max-width:1100px){.shape-ru-speech{width:230px;left:-60px}.shape-ru-pencil{width:190px;right:-35px}.shape-ru-paper{width:235px;left:-60px}.shape-ru-punctuation{width:210px;right:-50px}}@media(max-width:700px){.shape-ru-speech{width:140px;left:-25px;top:5px}.shape-ru-pencil{width:115px;right:-20px;top:5px}.shape-ru-paper{width:135px;left:-32px;bottom:8px}.shape-ru-punctuation{width:125px;right:-25px;bottom:8px}}

.subject-switch{max-width:calc(100% - 32px);flex-wrap:wrap;justify-content:center;gap:6px}.subject-soon{font-size:10px;opacity:.7;margin-left:4px}.upcoming-subject{max-width:760px;margin:48px auto 80px;padding:48px;background:white;border:1px solid #e0e6ee;border-radius:32px}.upcoming-subject h1{font-size:clamp(32px,5vw,58px);overflow-wrap:anywhere;margin:16px 0 28px}.upcoming-subject h2{font-size:24px;line-height:1.3}.upcoming-subject p{font-size:18px;line-height:1.6;color:#606575}.upcoming-subject .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}@media(max-width:700px){.subject-switch a{padding:9px 12px;font-size:13px}.upcoming-subject{padding:28px 22px;margin:24px auto 48px}.upcoming-subject h2{font-size:21px}}

/* Access: a quiet, compact comparison with shared benefits. */
.pricing-page{max-width:1080px;margin:0 auto}.pricing-heading{margin-bottom:40px}.pricing-heading h1{font-size:clamp(32px,4.5vw,56px);line-height:1.08;letter-spacing:-.035em;margin:18px 0 20px;text-wrap:balance}.pricing-heading>p{font-size:17px;max-width:60ch;color:var(--muted);line-height:1.6}.pricing-options{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:24px;overflow:hidden;background:#fff}.pricing-option{padding:32px;display:flex;flex-direction:column}.pricing-month{border-left:1px solid var(--line);background:#f8f9ff}.plan-label{font-size:13px;color:var(--muted);margin-bottom:14px}.pricing-option h2{font-size:24px;letter-spacing:-.025em;margin:0;line-height:1.25}.plan-amount{font-size:clamp(44px,5vw,64px);letter-spacing:-.035em;line-height:1.1;margin:28px 0 20px;font-variant-numeric:tabular-nums}.plan-amount span{font-size:16px;color:var(--muted);letter-spacing:0;white-space:nowrap}.plan-description{font-size:16px;line-height:1.6;margin:0 0 28px;max-width:35ch}.plan-action{margin-top:auto}.plan-action .button{width:100%;justify-content:center;font-size:16px;min-height:52px}.plan-action>p:not(.plan-status){font-size:12px;color:var(--muted);line-height:1.5;margin:16px 0 0;min-height:36px}.plan-status{display:flex;align-items:center;gap:8px;min-height:52px;font-size:16px;margin:0}.pricing-includes{display:grid;grid-template-columns:1fr 2fr;gap:28px;padding:32px 0;border-bottom:1px solid var(--line)}.pricing-includes h2{font-size:20px;margin:0;letter-spacing:-.02em}.pricing-includes ul{display:grid;grid-template-columns:1fr 1fr;gap:18px 24px;padding:0;margin:0;list-style:none}.pricing-includes li{display:flex;align-items:start;gap:10px;font-size:14px;line-height:1.5}.pricing-includes svg{width:18px;height:18px;flex-shrink:0}.pricing-footer{font-size:13px;line-height:1.6;color:var(--muted);margin:24px 0 16px}@media(max-width:700px){.pricing-heading{margin-bottom:24px}.pricing-heading h1{font-size:34px}.pricing-options{grid-template-columns:1fr;border-radius:20px}.pricing-option{padding:24px}.pricing-month{border-left:0;border-top:1px solid var(--line)}.plan-amount{margin:20px 0 16px;font-size:48px}.plan-description{margin-bottom:20px}.pricing-includes{grid-template-columns:1fr;gap:20px;padding:28px 0}.pricing-includes ul{grid-template-columns:1fr;gap:12px}.pricing-heading>p{font-size:16px}}

/* TextLoop announcement ribbon */
.announcement.text-loop{position:relative;display:block;height:60px;min-height:60px;padding:0;overflow:hidden;background:#fff;color:#fff;letter-spacing:0}
.text-loop-svg{display:block;width:100%;height:60px}
.text-loop-ribbon{fill:none;stroke:var(--iris);stroke-width:34;stroke-linecap:round;stroke-linejoin:round}
.text-loop-text,.text-loop-measure{font:700 16px/1.2 Inter,Arial,Helvetica,sans-serif;letter-spacing:1px;fill:currentColor;user-select:none}
.text-loop-measure{visibility:hidden;pointer-events:none}
.text-loop-toggle{position:absolute;right:12px;top:16px;display:grid;place-items:center;width:28px;height:28px;padding:4px;border:0;border-radius:50%;background:#fff;color:var(--iris)}
.text-loop-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2}
.text-loop-play{display:none}
.text-loop-toggle[aria-pressed="true"] .text-loop-pause{display:none}
.text-loop-toggle[aria-pressed="true"] .text-loop-play{display:block}
.text-loop-toggle:disabled{display:none}
@media(prefers-reduced-motion:reduce){.text-loop-toggle{display:none}}