:root{
  --diag-navy:#0d1730;
  --diag-blue:#4f72ff;
  --diag-cyan:#62d9cf;
  --diag-lime:#b9f36b;
  --diag-ink:#18223a;
  --diag-muted:#64708a;
  --diag-line:#dfe5f0;
  --diag-paper:#f5f7fb;
  --diag-shadow:0 20px 55px #13254a18;
}

.diagnostic-page{min-height:100vh;background:var(--diag-paper)}
.diagnostic-page::before{height:480px;background:radial-gradient(circle at 82% 10%,#526fff42 0 12%,transparent 35%),radial-gradient(circle at 12% 28%,#62d9cf28 0 10%,transparent 33%),linear-gradient(145deg,#0d1730,#111f42 56%,#142d4c)}
.diagnostic-topbar{width:min(1180px,calc(100% - 32px))}
.home-nav .home-return{border:1px solid #ffffff2c;color:#fff}
.diagnostic-shell{width:min(1180px,calc(100% - 32px));margin:auto;padding:54px 0 70px}
.diagnostic-hero{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:end;min-height:250px;color:#fff}
.diagnostic-hero h1{margin:17px 0 10px;font-size:clamp(2.7rem,7vw,5.5rem);font-weight:900;line-height:1;letter-spacing:-.05em}
.diagnostic-hero p{max-width:700px;margin:0;color:#c7d3eb;font-size:clamp(1.04rem,2vw,1.28rem);font-weight:600;line-height:1.7}
.diagnostic-start-shell{max-width:920px}
.simple-hero{min-height:235px;grid-template-columns:1fr;align-items:center}
.simple-hero h1{font-size:clamp(4rem,13vw,8rem)}
.simple-hero p{font-size:clamp(1.2rem,3vw,1.55rem)}
.version-card{min-width:190px;padding:19px 21px;border:1px solid #ffffff22;border-radius:18px;background:#ffffff0d;box-shadow:0 20px 45px #03091c45;backdrop-filter:blur(15px)}
.version-card span,.version-card small{display:block;color:#b9c6e6;font-size:.78rem;font-weight:800}
.version-card strong{display:block;margin:5px 0;color:var(--diag-lime);font:700 1.16rem Andika,sans-serif;direction:ltr;text-align:right}
.start-panel{max-width:310px;margin-top:48px;padding:20px;border:1px solid #fff;border-radius:22px;background:#fff;box-shadow:var(--diag-shadow)}
.diagnostic-disclaimer{margin:14px 0 0;color:#667085;font-size:.8rem;line-height:1.55;text-align:center}.result-disclaimer{max-width:680px;margin:24px auto 0}
.start-test-action{width:100%;min-width:145px}
.test-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:24px}
.test-card{position:relative;min-height:420px;padding:32px;display:flex;flex-direction:column;overflow:hidden;border:1px solid #fff;border-radius:25px;background:#fff;box-shadow:var(--diag-shadow)}
.test-card::before{position:absolute;top:-70px;left:-50px;width:220px;height:220px;border-radius:50%;content:"";opacity:.13}
.vocab-card::before{background:var(--diag-cyan)}
.reading-card::before{background:var(--diag-blue)}
.test-icon{position:relative;width:67px;height:67px;display:grid;place-items:center;border-radius:18px;color:#fff;box-shadow:0 12px 26px #13254a20;font:700 1.3rem Andika,sans-serif;direction:ltr}
.vocab-card .test-icon{background:linear-gradient(145deg,#38bcae,#147e72)}
.reading-card .test-icon{background:linear-gradient(145deg,#6b87ff,#3e5dd8)}
.card-kicker{margin-top:24px;color:#4d67c9;font-weight:900;font-size:.8rem}
.test-card h2{margin:5px 0 8px;font-size:2rem}
.test-card>p{margin:0;color:var(--diag-muted);font-size:1.04rem;line-height:1.6}
.test-card ul{margin:20px 0 26px;padding:0;display:grid;gap:9px;color:#47536b;list-style:none}
.test-card li::before{margin-inline-end:8px;color:#159379;content:"✓";font-weight:900}
.diagnostic-cta{min-height:57px;margin-top:auto;padding:13px 17px;display:flex;align-items:center;justify-content:space-between;border-radius:14px;background:linear-gradient(135deg,#526fff,#3e5bd9);color:#fff;text-decoration:none;font-weight:900;box-shadow:0 9px 22px #304fc54a}
.diagnostic-cta[aria-disabled="true"]{opacity:.45;pointer-events:none;box-shadow:none}
.diagnostic-cta:focus-visible,.primary-action:focus-visible,.secondary-action:focus-visible,.answer-option:focus-visible,.unknown-button:focus-visible{outline:4px solid #62d9cf88;outline-offset:3px}
.privacy-note{max-width:760px;margin:24px auto 0;color:#68758d;text-align:center;font-size:.9rem;line-height:1.55}

.exam-page::before{height:310px}
.exam-shell{width:min(920px,calc(100% - 28px));margin:auto;padding:42px 0 80px}
.exam-panel{padding:clamp(24px,5vw,45px);border:1px solid #fff;border-radius:25px;background:#fff;box-shadow:var(--diag-shadow)}
.status-panel,.intro-panel{text-align:center}
.status-panel{min-height:360px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.status-panel[hidden],.intro-panel[hidden],.question-panel[hidden],.result-panel[hidden],.reading-workspace[hidden],.reading-question[hidden],.passage-ready[hidden]{display:none!important}
.loading-orb{width:58px;height:58px;border:6px solid #dfe6f5;border-top-color:var(--diag-blue);border-radius:50%;animation:diag-spin .8s linear infinite}
.status-panel h1{margin:22px 0 6px;font-size:1.8rem}.status-panel p{margin:0;color:var(--diag-muted)}
@keyframes diag-spin{to{transform:rotate(360deg)}}
.intro-panel h1{margin:18px 0 10px;font-size:clamp(2.15rem,6vw,3.8rem);letter-spacing:-.035em}
.intro-panel>p{max-width:650px;margin:0 auto;color:var(--diag-muted);font-size:1.06rem;line-height:1.7}
.intro-facts{margin:27px auto;display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.intro-facts span{min-width:130px;padding:13px;border-radius:14px;background:#f1f5fb;color:#5b6780;font-weight:800}
.intro-facts strong{display:block;color:var(--diag-blue);font:700 1.35rem Andika,sans-serif}
.primary-action,.secondary-action{min-height:53px;padding:13px 22px;border:0;border-radius:14px;font-weight:900;text-decoration:none;cursor:pointer}
.primary-action{background:linear-gradient(135deg,#526fff,#3e5bd9);color:#fff;box-shadow:0 8px 0 #304db7}
.primary-action:active{transform:translateY(3px);box-shadow:0 5px 0 #304db7}
.secondary-action{display:inline-flex;align-items:center;justify-content:center;background:#edf1f7;color:#33415c}
.link-action{display:inline-flex;align-items:center;justify-content:center}
.exam-progress-row{display:flex;align-items:center;justify-content:space-between;gap:16px;color:#5f6b82;font-weight:900}
.exam-progress-row strong{font:700 1rem Andika,sans-serif;direction:ltr}
.exam-progress{height:8px;margin-top:11px;overflow:hidden;border-radius:999px;background:#e8edf5}
.exam-progress span{display:block;width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--diag-cyan),var(--diag-blue));transition:width .3s ease}
.question-timer{width:min(250px,100%);margin:18px auto 0;direction:ltr;text-align:center}
.question-timer>div{display:flex;align-items:baseline;justify-content:center;gap:6px;color:#28426f}
.question-timer strong{font:700 1.35rem Andika,sans-serif}
.question-timer small{color:#65728a;font-weight:800}
.timer-line{height:5px;margin-top:6px;display:block;overflow:hidden;border-radius:999px;background:#e4eaf3}
.timer-line i{display:block;width:100%;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--diag-cyan),var(--diag-blue))}
.question-timer.is-overtime>div{color:#a53b4d}
.question-timer.is-overtime .timer-line i{width:100%!important;background:#d05769}
.compact-timer{width:100%;margin:12px 0 17px}
.vocab-prompt{margin:35px auto 26px;text-align:center}
.prompt-label,.passage-label{color:#4c67c7;font-size:.74rem;font-weight:900;letter-spacing:.08em}
.vocab-prompt h1{max-width:100%;margin:8px 0 10px;font:700 clamp(2.7rem,9vw,5.3rem) Andika,sans-serif;color:#111c38;line-height:1.05;overflow-wrap:anywhere}
.vocab-prompt p{max-width:690px;margin:0 auto;padding:17px;border-right:4px solid var(--diag-cyan);border-radius:12px;background:#f6f9fd;color:#35415a;font:700 clamp(1.03rem,2.7vw,1.3rem) Andika,sans-serif;line-height:1.7;text-align:left}
.vocab-prompt.foundation-prompt h1{font-size:clamp(1.8rem,6vw,3.5rem);line-height:1.35}
.answer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.answer-option{position:relative;min-width:0;max-width:100%;min-height:66px;padding:13px 58px 13px 15px;border:2px solid #dfe5ef;border-radius:15px;background:#fff;color:#26334e;text-align:right;font-weight:800;overflow-wrap:anywhere;cursor:pointer;transition:border-color .15s,transform .15s,background .15s}
.answer-option:hover{border-color:#91a6ff;background:#f6f8ff;transform:translateY(-1px)}
.answer-option .answer-letter{position:absolute;top:50%;right:13px;width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:#edf1fb;color:#405ab6;font:700 .95rem Andika,sans-serif;transform:translateY(-50%)}
.reading-answers .answer-option{direction:ltr;text-align:left;padding:13px 15px 13px 58px;font-family:Andika,Arial,sans-serif}
.reading-answers .answer-letter{right:auto;left:13px}
.english-options .answer-option{direction:ltr;text-align:left;padding:13px 15px 13px 58px;font-family:Andika,Arial,sans-serif}
.english-options .answer-letter{right:auto;left:13px}
.unknown-button{display:block;margin:17px auto 0;padding:10px 15px;border:0;background:transparent;color:#68758d;text-decoration:underline;text-underline-offset:4px;font-weight:800;cursor:pointer}
.answer-option:disabled,.unknown-button:disabled{cursor:default;opacity:.65}
.transition-mark{width:72px;height:72px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(145deg,var(--diag-lime),var(--diag-cyan));color:#0d3e39;font:900 1.28rem Andika,sans-serif;letter-spacing:.05em;direction:ltr;box-shadow:0 14px 30px #2e9f8933}
.transition-action{margin-top:26px;min-width:210px}
.vocabulary-only-result{text-align:center}.vocabulary-only-result .result-lead{max-width:650px;margin:0 auto}.vocabulary-only-result .recommendations{text-align:right}
.foundation-recommendations{padding:20px;border:1px solid #bfe3d9;border-radius:18px;background:#f0faf7}.foundation-recommendations[hidden]{display:none}
.vocabulary-recommendations{padding-top:22px;border-top:1px solid var(--diag-line)}.foundation-recommendations:not([hidden])+.vocabulary-recommendations{margin-top:18px}
.vocabulary-result-actions{justify-content:center}

.result-panel h1{margin:6px 0 8px;font-size:clamp(2.15rem,6vw,3.5rem);letter-spacing:-.035em}
.result-kicker{color:#168f72;font-weight:900}
.result-lead{margin:0;color:var(--diag-muted);line-height:1.6}
.result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-top:26px}
.result-card{padding:20px 16px;border:1px solid var(--diag-line);border-radius:18px;background:#f9fbfe}
.result-card span{display:block;color:#5e6b84;font-weight:900}
.result-card strong{display:block;margin:8px 0 4px;color:var(--diag-blue);font:700 clamp(1.45rem,4vw,2rem) Andika,sans-serif;direction:ltr;text-align:right}
.result-card small{color:#78849a;line-height:1.45}
.coverage-track{height:8px;margin-top:15px;overflow:hidden;border-radius:999px;background:#e6ebf3}.coverage-track i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--diag-cyan),var(--diag-blue))}
.class-comparison{margin-top:20px;padding:19px 20px;border-right:5px solid var(--diag-lime);border-radius:15px;background:#111d39;color:#fff;line-height:1.6}
.class-comparison strong{color:var(--diag-lime)}
.recommendations{margin-top:30px}.recommendations h2{margin:0 0 13px;font-size:1.45rem}
.recommendation-list{display:grid;gap:10px}
.recommendation-item{min-height:70px;padding:13px 15px;display:grid;grid-template-columns:46px 1fr auto;gap:13px;align-items:center;border:1px solid var(--diag-line);border-radius:16px;background:#fff;color:inherit;text-decoration:none}
.recommendation-item:hover{border-color:#9eb0f8;background:#f8faff}
.recommendation-icon{width:46px;height:46px;display:grid;place-items:center;border-radius:13px;background:#eaf6f3;color:#147d6d;font-weight:900}
.recommendation-copy{display:grid;gap:3px}.recommendation-copy strong{font-size:1rem}.recommendation-copy small{color:var(--diag-muted);line-height:1.4}
.recommendation-arrow{color:var(--diag-blue);font-size:1.3rem}
.result-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:11px}

.reading-shell{width:min(1120px,calc(100% - 28px))}
.reading-workspace{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(330px,.72fr);gap:17px;align-items:start}
.reading-progress-row,.reading-workspace>.exam-progress{grid-column:1/-1}
.reading-passage,.reading-question{padding:clamp(21px,4vw,34px);border:1px solid #fff;border-radius:22px;background:#fff;box-shadow:var(--diag-shadow)}
.reading-passage{position:sticky;top:18px;max-height:calc(100vh - 36px);overflow:auto;direction:ltr;text-align:left}
.reading-passage h1{margin:8px 0 16px;color:#14203d;font:700 clamp(1.7rem,4vw,2.35rem) Andika,sans-serif}
.reading-passage div{color:#26334d;font:400 clamp(1.04rem,2.2vw,1.18rem) Andika,sans-serif;line-height:1.8}
.reading-stage-frame{display:grid;grid-template-columns:26px minmax(0,1fr);gap:22px;align-items:stretch}
.paragraph-progress{--paragraph-progress-scale:0;position:relative;min-height:230px;padding:8px 0;display:flex;flex-direction:column;justify-content:space-between;align-items:center}
.paragraph-progress::before,.paragraph-progress::after{content:"";position:absolute;z-index:0;top:20px;bottom:20px;left:50%;width:4px;border-radius:999px;transform:translateX(-50%)}
.paragraph-progress::before{background:#dfe5ef}
.paragraph-progress::after{background:linear-gradient(180deg,var(--diag-cyan),var(--diag-blue));box-shadow:0 0 12px #5578ff66;transform:translateX(-50%) scaleY(var(--paragraph-progress-scale));transform-origin:top;transition:transform .42s cubic-bezier(.22,.75,.28,1)}
.paragraph-cube{position:relative;z-index:1;width:17px;height:17px;border:2px solid #c9d2e1;border-radius:4px;background:#e4e9f1;transform:rotate(45deg);box-shadow:inset 2px 2px 3px #ffffffa8,inset -2px -2px 3px #aab5c633;transition:background .3s,border-color .3s,box-shadow .3s,transform .3s}
.paragraph-cube.is-lit{border-color:#5b75ff;background:linear-gradient(145deg,#65dec9 5%,#6380ff 88%);box-shadow:0 0 0 5px #65d8ca20,0 0 18px #5878ff9c,inset 2px 2px 3px #ffffff8c;transform:rotate(45deg) scale(1.12)}
.staged-passage p{margin:0;padding:0 0 18px}
.staged-passage p+p{padding-top:18px;border-top:1px solid #dfe5f0}
.staged-passage p.is-new{will-change:opacity,transform,filter,clip-path;animation:paragraph-reveal .62s cubic-bezier(.2,.72,.25,1) both}
.staged-passage p.is-new:nth-child(2){animation-delay:.13s}
.staged-passage p.is-new:nth-child(3){animation-delay:.26s}
@keyframes paragraph-reveal{0%{opacity:0;filter:blur(5px);clip-path:inset(0 0 100% 0);transform:translateY(14px)}55%{opacity:.82;filter:blur(1px)}100%{opacity:1;filter:blur(0);clip-path:inset(0);transform:translateY(0)}}
.reading-question{direction:rtl}
.reading-question h2{min-width:0;max-width:100%;margin:8px 0 20px;color:#182540;font:700 clamp(1.13rem,2.5vw,1.35rem) Andika,sans-serif;line-height:1.55;text-align:left;direction:ltr;overflow-wrap:anywhere}
.passage-ready{text-align:center;direction:rtl}
.passage-ready h2{margin:0 0 24px;text-align:center;direction:rtl}
.reading-answers{grid-template-columns:1fr}
.reading-result{margin-top:24px;padding:25px;border-radius:20px;background:linear-gradient(145deg,#eef4ff,#e8faf5)}
.reading-result .reading-level{display:flex;align-items:center;gap:15px}
.reading-result .level-badge{width:74px;height:74px;display:grid;place-items:center;border-radius:20px;background:linear-gradient(145deg,#5d7dff,#3f5dd5);color:#fff;font:700 2.1rem Andika,sans-serif;box-shadow:0 10px 25px #3652b94a}
.reading-result h2{margin:0;font-size:1.65rem}.reading-result p{margin:5px 0 0;color:#55637a;line-height:1.55}
.level-evidence{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px}.level-evidence span{padding:7px 11px;border-radius:999px;background:#ffffffb8;color:#43516a;font-size:.82rem;font-weight:900}
.error-message{padding:22px;border:1px solid #ffd2d8;border-radius:16px;background:#fff2f4;color:#923343;text-align:center;line-height:1.55}

@media(max-width:800px){
  .diagnostic-topbar{width:calc(100% - 24px);gap:12px}.diagnostic-topbar .home-nav a:not(.home-return){display:none}.home-nav .home-return{padding:9px 10px;font-size:.8rem}
  .diagnostic-shell{width:min(100% - 24px,680px);padding-top:35px}.diagnostic-hero{grid-template-columns:1fr;gap:20px;min-height:270px;align-items:start}.diagnostic-hero h1{font-size:clamp(2.65rem,14vw,4.2rem)}.version-card{width:100%}
  .start-panel{padding:18px}.start-test-action{width:100%}.test-grid{grid-template-columns:1fr}.test-card{min-height:390px;padding:25px}
  .exam-shell,.reading-shell{width:calc(100% - 20px);padding-top:25px}.exam-panel{padding:22px;border-radius:20px}.answer-grid{grid-template-columns:1fr}.result-grid{grid-template-columns:1fr}.reading-workspace{grid-template-columns:1fr}.reading-passage{position:static;max-height:none}.reading-progress-row,.reading-workspace>.exam-progress{grid-column:auto}.recommendation-item{grid-template-columns:44px 1fr}.recommendation-arrow{display:none}
}

@media(max-width:520px){
  .diagnostic-topbar{min-height:68px}.diagnostic-topbar .home-brand small{display:none}.diagnostic-topbar .brand-mark{width:39px;height:39px}.home-nav .home-return{font-size:0}.home-nav .home-return::after{font-size:1.25rem;content:"⌂"}
  .diagnostic-shell{padding-bottom:48px}.start-panel{margin-top:35px}.test-card{border-radius:20px}.exam-progress-row{font-size:.87rem}.vocab-prompt{margin-top:27px}.vocab-prompt h1{font-size:clamp(1.9rem,9vw,3.4rem)}.vocab-prompt p{padding:14px}.answer-option{min-height:62px}.intro-facts span{min-width:95px;flex:1}.result-actions{display:grid}.result-actions a{width:100%}.reading-result .level-badge{width:62px;height:62px;border-radius:17px;font-size:1.75rem}
}

@media(prefers-reduced-motion:reduce){.loading-orb{animation-duration:1.8s}.diagnostic-cta,.answer-option,.exam-progress span,.paragraph-progress::after,.paragraph-cube{transition:none}.staged-passage p.is-new{animation:none}}