@layer theme, base, components, utilities;:root{--dash-ielts:14 8;--dash-pte:2 6;--dash-toefl:12 6 2 6;--font-display:"Overpass",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--font-text:"Atkinson Hyperlegible Next","Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--font-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;--text-mega:clamp(44px,7vw,84px);--text-display:clamp(36px,5vw,56px);--text-h1:clamp(30px,4vw,44px);--text-h2:clamp(24px,3vw,32px);--text-h3:20px;--text-h4:17px;--text-lead:clamp(17px,1.5vw,19px);--text-reading:clamp(17px,1.4vw,18px);--text-body:16px;--text-small:14px;--text-caption:13px;--text-score:clamp(56px,6vw,72px);--text-card-name:24px;--text-stat:clamp(28px,3vw,36px);--lh-tight:1.06;--lh-heading:1.2;--lh-body:1.6;--lh-reading:1.7;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--space-24:96px;--space-32:128px;--section-y:clamp(64px,8vw,96px);--hero-top:clamp(72px,10vw,128px);--container:1200px;--container-wide:1280px;--container-exam:1100px;--container-prose:760px;--container-form:480px;--gutter:clamp(20px,3vw,32px);--grid-gap:clamp(16px,2vw,24px);--header-h:64px;--exam-bar-h:56px;--announce-h:40px;--bottom-bar-h:72px;--sidebar-w:240px;--sidebar-collapsed:64px;--radius-xs:6px;--radius-sm:10px;--radius-md:14px;--radius-lg:20px;--radius-xl:28px;--radius-pill:999px;--shadow-ring:0 0 0 1px rgb(15 27 45/.06),0 1px 2px rgb(15 27 45/.04),0 2px 4px rgb(15 27 45/.03);--shadow-pop:0 12px 32px rgb(15 27 45/.10);--shadow-modal:0 24px 64px rgb(15 27 45/.18);--shadow-orb:0 30px 80px rgb(11 92 200/.25);--edge:3px;--dur-instant:80ms;--dur-fast:140ms;--dur-base:200ms;--dur-slow:320ms;--dur-reveal:600ms;--ease-out:cubic-bezier(.22,1,.36,1);--ease-in:cubic-bezier(.55,0,1,.45);--ease-in-out:cubic-bezier(.65,0,.35,1);--ease-expressive:cubic-bezier(.34,1.3,.64,1);--z-base:0;--z-sticky:100;--z-popover:200;--z-toast:300;--z-dialog:400;--z-critical:500}:root,[data-force-theme=light],[data-theme=dark] [data-exam-chrome]{--white:#FFFFFF;--ice:#F3F7FE;--haze:#E7F0FD;--hairline:#E1E8F3;--rule-strong:#7688A0;--ink:#0F1B2D;--ink-edge:#050B14;--slate:#4A5A70;--slate-muted:#5E6E84;--rule-strong-text:var(--slate-muted);--motorway:#0B5CC8;--motorway-hover:#094FAE;--motorway-edge:#08449A;--on-motorway:#FFFFFF;--deep:#0A4AA6;--deep-edge:#073A86;--deep-ice:#C9DCFA;--sky:#38A8F5;--sky-50:#D6EEFF;--orb-1:#F3F8FF;--orb-2:#A9CCFF;--orb-3:#4A8BFF;--orb-4:#0B5CC8;--orb-gradient:radial-gradient(circle at 35% 30%,var(--orb-1) 0%,var(--orb-2) 28%,var(--orb-3) 58%,var(--orb-4) 100%);--gradient-ground:radial-gradient(ellipse 640px 420px at 100% 0%,var(--sky-50),transparent 60%),linear-gradient(155deg,var(--white) 0%,var(--ice) 55%,var(--haze) 100%);--go:#0C7F41;--go-text:#0B7A43;--go-50:#EAF6EE;--go-edge:#095E31;--stop:#C9372C;--stop-text:#A82E25;--stop-50:#FDEDEB;--stop-edge:#962A22;--warn-text:#8A5A00;--warn-50:#FFF4D6;--line-celpip:#1E88E5;--line-ielts:#1F4FB2;--line-pte:#3B7DD8;--line-oet:#1493C9;--line-toefl:#0A3D91;--line-current:var(--motorway);--focus-outline:2px solid var(--ink);--focus-halo:0 0 0 6px var(--sky);--overlay:rgb(15 27 45/.4)}[data-theme=dark],[data-theme=dark] [data-exam-chrome]{--white:#0B1422;--ice:#101C2F;--haze:#16305A;--hairline:#1F3049;--rule-strong:#5D7291;--ink:#E6EEF8;--ink-edge:#8FA3BD;--slate:#9FB0C6;--slate-muted:#9FB0C6;--motorway:#6EA8FF;--motorway-hover:#8DBBFF;--motorway-edge:#3F7FE0;--on-motorway:#0B1422;--deep:#0F2A55;--deep-ice:#C9DCFA;--sky:#7CC4FF;--sky-50:#173B5E;--go:#4ADE80;--go-text:#4ADE80;--go-50:#133022;--go-edge:#22A85A;--stop:#FF8A7A;--stop-text:#FF8A7A;--stop-50:#3B1F1C;--stop-edge:#D9544B;--warn-text:#FFD27A;--warn-50:#3A2E12;--line-celpip:#5CB8F0;--line-ielts:#8FA9F5;--line-pte:#7FB2F5;--line-oet:#5FC8EE;--line-toefl:#7A9BE8;--overlay:rgb(5 11 20/.6)}[data-force-theme=light]{color-scheme:light}@media (prefers-reduced-motion:reduce){:root{--dur-instant:0ms;--dur-fast:0ms;--dur-base:0ms;--dur-slow:0ms;--dur-reveal:0ms;--ease-expressive:var(--ease-out)}}@layer components{*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{margin:0;background:var(--white);font:400 var(--text-body)/var(--lh-body) var(--font-text);letter-spacing:.005em;-webkit-font-smoothing:antialiased}body,h1,h2{color:var(--ink)}h1,h2{font-family:var(--font-display);font-weight:300;letter-spacing:-.02em;line-height:var(--lh-tight);margin:0 0 .5em}h1{font-size:var(--text-h1)}h2{font-size:var(--text-h2);line-height:var(--lh-heading);letter-spacing:-.015em}h3{font:700 var(--text-h3)/1.35 var(--font-text)}h3,h4{margin:0 0 .5em}h4{font:700 var(--text-h4)/1.4 var(--font-text)}.text-mega{font:300 var(--text-mega)/1.02 var(--font-display);letter-spacing:-.03em}.text-display{font:300 var(--text-display)/1.06 var(--font-display);letter-spacing:-.025em}.lead{font-size:var(--text-lead);line-height:1.6;color:var(--slate);max-width:60ch}.reading{font-size:var(--text-reading);line-height:var(--lh-reading);max-width:68ch}.small{font-size:var(--text-small);font-weight:500}.caption{font-size:var(--text-caption);font-weight:500}.card-name{font:500 var(--text-card-name)/1.2 var(--font-display)}.card-name,.stat{letter-spacing:-.01em}.stat{font:300 var(--text-stat)/1.1 var(--font-display)}.stat,.tabular{font-variant-numeric:tabular-nums}p{margin:0 0 1em}a{color:var(--motorway);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:color var(--dur-fast) var(--ease-out)}a:hover{color:var(--motorway-hover)}:focus-visible{outline:var(--focus-outline);outline-offset:2px;box-shadow:var(--focus-halo)}.skip-link,.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.skip-link{top:0;left:0;z-index:var(--z-critical);background:var(--white);color:var(--ink);padding:var(--space-3) var(--space-4);border-radius:0 0 var(--radius-sm) 0;font-weight:700;box-shadow:var(--shadow-pop)}.skip-link:focus{width:auto;height:auto;overflow:visible;clip:auto;white-space:normal}.eh-container{max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}.eh-container--wide{max-width:var(--container-wide)}.eh-container--exam{max-width:var(--container-exam)}.eh-container--prose{max-width:var(--container-prose)}.eh-container--form{max-width:var(--container-form)}.section{padding:var(--section-y) 0}.section--ice{background:var(--ice)}.gr-rhythm{--gr-1:8px;--gr-2:13px;--gr-3:21px;--gr-4:34px;--gr-5:55px;--gr-6:89px}.gr-rhythm .section{padding:clamp(var(--gr-5),8vw,var(--gr-6)) 0}.eh-grid{display:grid;gap:var(--grid-gap);grid-template-columns:repeat(12,1fr)}@media (max-width:1023px){.eh-grid{grid-template-columns:repeat(6,1fr)}}@media (max-width:639px){.eh-grid{grid-template-columns:1fr}}.icon{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle;transition:transform var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out),opacity var(--dur-fast) var(--ease-out)}.icon--16{width:16px;height:16px}.icon--24{width:24px;height:24px}.icon--96{width:96px;height:96px;stroke-width:.75;color:var(--rule-strong)}.icon--motorway{color:var(--motorway)}.icon--slate{color:var(--slate)}.icon--go{color:var(--go-text)}.icon--stop{color:var(--stop-text)}.icon--warn{color:var(--warn-text)}@media (hover:hover){.btn:hover .icon--lead-right,a:hover .icon--lead-right{transform:translateX(2px)}.btn:hover .icon--lead-left,a:hover .icon--lead-left{transform:translateX(-2px)}.btn:hover .icon--lead-down{transform:translateY(2px)}.btn:hover .icon--external,a:hover .icon--external{transform:translate(1px,-1px)}.btn:hover .icon--play{transform:scale(1.08)}.row-link:hover .icon--chev{transform:translateX(2px);color:var(--motorway)}}.icon--spin{animation:eh-spin .9s linear infinite}@keyframes eh-spin{to{transform:rotate(1turn)}}[aria-expanded=true] .icon--rotate{transform:rotate(180deg)}.icon--swap{position:relative}.icon--swap .icon{transition:opacity var(--dur-fast) var(--ease-out),transform var(--dur-fast) var(--ease-out)}.icon--swap .icon+.icon{position:absolute;inset:0}.icon--swap .icon+.icon,.icon--swap.is-done .icon:first-child{opacity:0;transform:scale(.8)}.icon--swap.is-done .icon+.icon{opacity:1;transform:none;color:var(--go-text)}@media (prefers-reduced-motion:reduce){.icon,.icon--swap .icon{transition:none}.icon--spin{animation:none}}.btn{--btn-bg:var(--motorway);--btn-bg-hover:var(--motorway-hover);--btn-fg:var(--on-motorway);--btn-edge:var(--motorway-edge);--btn-border:transparent;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-height:48px;padding:0 var(--space-6);margin-bottom:var(--edge);border:1px solid var(--btn-border);border-radius:var(--radius-pill);background:var(--btn-bg);color:var(--btn-fg);font:500 1rem/1 var(--font-text);letter-spacing:.005em;white-space:nowrap;box-shadow:0 var(--edge) 0 var(--btn-edge);cursor:pointer;text-decoration:none;-webkit-tap-highlight-color:transparent;transition:transform var(--dur-fast) var(--ease-out),box-shadow var(--dur-fast) var(--ease-out),background-color var(--dur-fast) var(--ease-out),border-color var(--dur-fast) var(--ease-out)}@media (hover:hover){.btn:hover{background:var(--btn-bg-hover);color:var(--btn-fg);transform:translateY(-1px);box-shadow:0 calc(var(--edge) + 1px) 0 var(--btn-edge)}}.btn:active{transform:translateY(var(--edge));box-shadow:0 0 0 var(--btn-edge);transition-duration:var(--dur-instant)}.btn:focus-visible{outline:var(--focus-outline);outline-offset:2px;box-shadow:0 var(--edge) 0 var(--btn-edge),var(--focus-halo)}.btn:disabled,.btn[aria-disabled=true]{--btn-bg:var(--ice);--btn-bg-hover:var(--ice);--btn-fg:var(--slate-muted);--btn-border:var(--hairline);--btn-edge:var(--hairline);cursor:not-allowed;transform:none}.btn--secondary{--btn-bg:var(--white);--btn-bg-hover:var(--ice);--btn-fg:var(--ink);--btn-border:var(--rule-strong);--btn-edge:var(--rule-strong)}.btn--dark{--btn-bg:var(--ink);--btn-bg-hover:#1C2C45;--btn-fg:var(--white);--btn-edge:var(--ink-edge)}[data-theme=dark] .btn--dark:not([data-force-theme=light] .btn--dark),[data-theme=dark] [data-exam-chrome] .btn--dark{--btn-bg-hover:#FFFFFF}.btn--inverse{--btn-bg:#FFFFFF;--btn-bg-hover:#E7F0FD;--btn-fg:#0A4AA6;--btn-edge:var(--deep-edge)}.btn--ghost-inverse{--btn-bg:transparent;--btn-bg-hover:rgb(255 255 255/.12);--btn-fg:#fff;--btn-border:rgb(255 255 255/.5);--btn-edge:rgb(255 255 255/.35)}.btn--go{--btn-bg:var(--go);--btn-bg-hover:var(--go);--btn-fg:var(--on-motorway);--btn-edge:var(--go-edge)}.btn--stop{--btn-bg:var(--stop);--btn-bg-hover:var(--stop);--btn-fg:var(--on-motorway);--btn-edge:var(--stop-edge)}.btn--link{--btn-bg:transparent;--btn-bg-hover:transparent;--btn-fg:var(--motorway);--btn-edge:transparent;--edge:0px;padding:0 4px;min-height:44px;text-decoration:underline;text-underline-offset:4px}.btn--link:hover{color:var(--motorway-hover);transform:none}.btn--icon{width:44px;min-height:44px;padding:0;border-radius:50%}.btn--sm{min-height:40px;padding:0 18px;font-size:15px}.btn--lg{min-height:56px;padding:0 30px;font-size:17px}.btn .icon{width:20px;height:20px}.btn--sm .icon{width:16px;height:16px}.btn[aria-busy=true]{pointer-events:none}.btn .spinner{width:16px;height:16px;border:2px solid;border-right:2px solid transparent;border-radius:50%;animation:eh-spin .7s linear infinite}.exam-room .btn:hover{transform:none;box-shadow:0 var(--edge) 0 var(--btn-edge)}.btn--block{width:100%}[data-exam-viewport] .pte-exam-footer .btn{min-height:48px;padding:0 var(--space-6);margin-bottom:var(--edge);border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--btn-fg);font:500 1rem/1 var(--font-text);box-shadow:0 var(--edge) 0 var(--btn-edge)}@media (hover:hover){[data-exam-viewport] .pte-exam-footer .btn:hover{background:var(--btn-bg-hover);color:var(--btn-fg);transform:translateY(-1px);box-shadow:0 calc(var(--edge) + 1px) 0 var(--btn-edge)}}[data-exam-viewport] .pte-exam-footer .btn:active{transform:translateY(var(--edge));box-shadow:0 0 0 var(--btn-edge)}[data-exam-viewport] .pte-exam-footer .btn:focus-visible{box-shadow:0 var(--edge) 0 var(--btn-edge),var(--focus-halo)}.tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-pill);font-size:var(--text-small);font-weight:500;background:var(--haze);color:var(--ink);transition:background-color var(--dur-fast) var(--ease-out)}.tag:before{content:"";width:16px;border-top-style:solid;border-top:3px var(--pat,solid) var(--line-current)}.tag[href]:hover{background:var(--sky-50)}.tag--celpip{--line-current:var(--line-celpip)}.tag--ielts{--line-current:var(--line-ielts);--pat:dashed}.tag--pte{--line-current:var(--line-pte);--pat:dotted}.tag--oet{--line-current:var(--line-oet);--pat:double}.tag--toefl{--line-current:var(--line-toefl)}.tag--variant:before{border-top-style:dashed}.pill{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--radius-pill);font-size:var(--text-caption);font-weight:500;background:var(--ice);color:var(--ink);white-space:nowrap}.pill .icon{width:12px;height:12px}.pill--go{background:var(--go-50);color:var(--go-text)}.pill--warn{background:var(--warn-50);color:var(--warn-text)}.pill--stop{background:var(--stop-50);color:var(--stop-text)}.pill--pro{background:var(--haze);color:var(--motorway)}.pill--on-deep{background:rgb(255 255 255/.15);color:#fff}.code-chip{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:var(--radius-xs);background:var(--haze);color:var(--ink);font-size:12px;font-weight:700}.card{background:var(--white);border:1px solid var(--hairline);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-ring);transition:border-color var(--dur-fast) var(--ease-out),box-shadow var(--dur-fast) var(--ease-out)}@media (min-width:768px){.card{padding:var(--space-8)}}.section--ice .card{background:var(--white)}.card--ice{background:var(--ice)}.card--featured{box-shadow:var(--shadow-pop)}.card--clickable,a.card{cursor:pointer;text-decoration:none;color:inherit}@media (hover:hover){.card--clickable:hover,a.card:hover{border-color:var(--rule-strong);box-shadow:var(--shadow-pop)}}.card__seg{display:inline-block;width:36px;border-top-style:solid;border-top:3px var(--pat,solid) var(--line-current);margin-bottom:18px;vertical-align:middle}.card__mono{font-size:12px;color:var(--slate);font-weight:700;letter-spacing:.04em;margin-left:8px}.card--exam-mini{padding:20px;min-height:96px;border-radius:var(--radius-md)}.exam-pick{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:84px;padding:18px 20px;background:var(--white);border:1px solid var(--hairline);border-radius:var(--radius-lg);box-shadow:var(--shadow-ring);color:var(--ink);text-decoration:none;transition:border-color var(--dur-fast) var(--ease-out),box-shadow var(--dur-fast) var(--ease-out),transform var(--dur-fast) var(--ease-out)}.exam-pick__name{font:700 17px/1.3 var(--font-text);letter-spacing:-.01em;color:var(--ink);transition:color var(--dur-fast) var(--ease-out)}.exam-pick__go{flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--haze);color:var(--motorway);transition:background-color var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out),transform var(--dur-fast) var(--ease-out)}@media (hover:hover){.exam-pick:hover{border-color:var(--motorway);box-shadow:var(--shadow-pop);transform:translateY(-2px)}.exam-pick:hover .exam-pick__name{color:var(--motorway)}.exam-pick:hover .exam-pick__go{background:var(--motorway);color:var(--on-motorway);transform:translateX(2px)}}.exam-pick:active{transform:translateY(0)}.card--compare{background:var(--ice);border-style:dashed;border-color:var(--rule-strong)}.card--compact{padding:16px 18px}@media (min-width:768px){.card--compact{padding:18px 20px}}.card--ai-promo{background:var(--haze);border:1px solid var(--sky-50);border-radius:var(--radius-md);box-shadow:none;padding:14px 16px}@media (min-width:768px){.card--ai-promo{padding:14px 18px}}.notice{display:flex;gap:12px;align-items:flex-start;padding:16px;border-radius:var(--radius-md);background:var(--ice);font-size:15px}.notice--go{border-left-color:var(--go);background:var(--go-50)}.notice--warn{border-left-color:var(--warn-text);background:var(--warn-50)}.notice--stop{border-left-color:var(--stop);background:var(--stop-50)}.notice .icon{color:var(--motorway);margin-top:2px}.notice--go .icon{color:var(--go-text)}.notice--warn .icon{color:var(--warn-text)}.notice--stop .icon{color:var(--stop-text)}.row-link{display:flex;align-items:center;gap:12px;min-height:56px;padding:0 4px;border-bottom:1px solid var(--hairline);color:var(--ink);text-decoration:none;transition:background-color var(--dur-fast) var(--ease-out)}.row-link:last-child{border-bottom:0}@media (hover:hover){.row-link:hover{background:var(--ice)}}.row-link .icon--chev{margin-left:auto;color:var(--slate-muted)}.table-wrap{border:1px solid var(--hairline);border-radius:var(--radius-lg);overflow:auto;background:var(--white)}table.table{width:100%;border-collapse:collapse;font-size:var(--text-small)}.table th{text-align:left;background:var(--ice);font-weight:700;white-space:nowrap}.table td,.table th{padding:12px 16px;border-bottom:1px solid var(--hairline)}.table td{height:48px}.table tr:last-child td{border-bottom:0}.table .num{text-align:right;font-variant-numeric:tabular-nums}@media (hover:hover){.table tbody tr:hover{background:var(--ice)}}.table--sticky td:first-child,.table--sticky th:first-child{position:sticky;left:0;background:inherit}.accordion__row{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:56px;padding:0;background:none;border:0;border-bottom:1px solid var(--hairline);font:500 16px var(--font-text);color:var(--ink);cursor:pointer;text-align:left}.accordion__panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--dur-base) 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