:root{--navy:#0d1b2a;--navy-2:#14273b;--teal:#0e6b6f;--teal-dark:#0a5054;--soft-teal:#6fb7b7;--gold:#d4a24c;--gold-dark:#b9862f;--white:#f7f8f9;--ink:#0d1b2a;--muted:#5f6b76;--line:#e2e6ea;--bg:#eef1f3;--card:#fff;--surface-subtle:#f2f6f6;--surface-accent:#e5f0f0;--focus-ring:#0e6b6f47;--correct:#1f9d57;--correct-bg:#e7f6ec;--wrong:#c4384f;--wrong-bg:#fbe9ec;--radius:12px;--shadow:0 1px 3px #0d1b2a14, 0 10px 30px #0d1b2a12;--font-body:"Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-display:"Playfair Display", Georgia, "Times New Roman", serif}*{box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font-body);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0}h1,h2,h3{font-family:var(--font-display)}button{font-family:inherit}.app{flex-direction:column;min-height:100dvh;display:flex}.storage-warning{border:1px solid #e2bb70;border-left:5px solid 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var(--gold);width:min(100%,620px);box-shadow:var(--shadow);background:#fff;border-radius:14px;padding:34px}.fatal-error-eyebrow{color:var(--teal);letter-spacing:.1em;text-transform:uppercase;font-size:13px;font-weight:800}.fatal-error h1{color:var(--navy);margin:8px 0 12px}.fatal-error p{color:var(--muted);line-height:1.6}.fatal-error-actions{flex-wrap:wrap;gap:10px;margin-top:24px;display:flex}@media (width<=640px){.storage-warning{flex-direction:column;align-items:flex-start;margin:12px 12px 0}.storage-warning-actions{width:100%}.storage-warning-actions button{flex:1}}.aeh-logo{align-items:center;gap:12px;display:inline-flex}.aeh-emblem{flex-shrink:0;display:block}.aeh-wordmark{flex-direction:column;line-height:1;display:flex}.aeh-name{font-family:var(--font-display);font-weight:600;font-size:calc(var(--logo-size,44px) * .46);letter-spacing:.2px;flex-wrap:wrap;align-items:baseline;gap:0 .34em;display:flex}.aeh-name .w1{color:var(--navy)}.aeh-name .w2{color:var(--teal)}.aeh-name 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18px;font-size:14px;font-weight:600;transition:background .15s,transform 50ms}.tbtn:hover:not(:disabled){background:#ffffff2e}.tbtn:active:not(:disabled){transform:translateY(1px)}.tbtn.solid{background:var(--gold);color:var(--navy);border-color:var(--gold)}.tbtn.solid:hover:not(:disabled){background:#e0b566}.tbtn.danger{color:#ffd6d6;background:#c4384f2e;border-color:#ffaaaab3}.tbtn.danger:hover:not(:disabled){background:#c4384f5c}.tbtn:disabled{opacity:.45;cursor:not-allowed}.subbar{border-bottom:1px solid var(--line);color:var(--muted);top:calc(63px + env(safe-area-inset-top));z-index:15;background:#fff;align-items:center;gap:16px;padding:10px 22px;font-size:14px;display:flex;position:sticky}.subbar .section{color:var(--teal);text-transform:uppercase;letter-spacing:.6px;font-size:13px;font-weight:700}.subbar .range{color:var(--muted)}.subbar-spacer{flex:1}.timer{font-variant-numeric:tabular-nums;color:var(--navy);letter-spacing:.4px;background:var(--white);border:1px solid var(--line);border-radius:6px;padding:4px 12px;font-weight:700}.timer.low{color:#fff;background:var(--wrong);border-color:var(--wrong)}.hidetime{color:var(--teal);cursor:pointer;background:0 0;border:none;font-size:14px;font-weight:600}.hidetime:hover{color:var(--teal-dark)}.content{flex:1;width:100%;max-width:820px;margin:0 auto;padding:40px 28px 130px}.instruction-title{text-align:center;color:var(--navy);margin:0 0 32px;font-size:26px;font-weight:600}.passage{color:#1c2b38;font-size:19px;line-height:2.7}.passage .word-wrap{white-space:nowrap;align-items:baseline;display:inline-flex}.visible-letters{font-weight:600}.blank-field{--slot-width:1.25ch;--slot-gap:.4ch;vertical-align:baseline;grid-template:1fr/1fr;width:max-content;min-width:30px;margin:0 3px;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:17px;display:inline-grid;position:relative}.blank-slots{grid-area:1/1;grid-template-columns:repeat(var(--slot-count), var(--slot-width));gap:var(--slot-gap);pointer-events:none;align-items:end;padding:0 0 2px;display:grid}.blank-slot{border-bottom:3px solid #b8b8b8;height:1.45em;transition:border-color .15s}.blank-input{width:100%;min-width:0;height:100%;font-family:inherit;font-size:inherit;letter-spacing:.65ch;color:var(--ink);z-index:1;background:0 0;border:none;outline:none;margin:0;padding:1px 0 3px .125ch;font-weight:600;position:absolute;inset:0}.blank-field:focus-within .blank-slot{border-color:var(--teal)}.blank-field:focus-within{border-radius:3px;box-shadow:0 3px #0e6b6f29}.blank-field.filled .blank-slot{border-color:var(--soft-teal)}.qnum{color:var(--gold-dark);vertical-align:super;margin-right:1px;font-size:11px;font-weight:700}.select-wrap{width:100%;max-width:960px;margin:0 auto;padding:48px 24px 90px}.hero{text-align:center;border-bottom:1px solid var(--line);flex-direction:column;align-items:center;gap:14px;margin-bottom:30px;padding:20px 0 34px;display:flex}.hero .aeh-logo{flex-direction:column;gap:16px}.hero .aeh-wordmark{align-items:center}.hero .aeh-name{justify-content:center}.hero .aeh-tagline{text-align:center}.hero-line{font-family:var(--font-display);color:var(--teal);margin:0;font-size:18px;font-style:italic}.select-head{margin-bottom:24px}.select-head h1{color:var(--navy);margin:0 0 8px;font-size:30px}.select-head p{color:var(--muted);max-width:640px;margin:0;font-size:16px}.card-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));grid-auto-rows:1fr;gap:22px;display:grid}.cat-card{--accent:var(--teal);background:var(--card);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;gap:10px;padding:22px 22px 18px;transition:transform .12s,box-shadow .12s;display:flex}.cat-card:hover{transform:translateY(-3px);box-shadow:0 10px 30px #0d1b2a21}.cat-card[data-section=reading]{--accent:var(--teal)}.cat-card[data-section=listening]{--accent:var(--soft-teal)}.cat-card[data-section=writing]{--accent:var(--gold)}.cat-card[data-section=speaking]{--accent:var(--navy)}.cat-card[data-section=full]{--accent:var(--gold);border-top-width:4px}.cat-kicker{color:var(--muted);letter-spacing:.09em;text-transform:uppercase;align-items:center;gap:8px;font-size:11px;font-weight:800;display:flex}.cat-kicker:before{content:"";background:var(--accent);border-radius:50%;flex-shrink:0;width:8px;height:8px}.cat-title{color:var(--navy);margin:0;font-size:21px;font-weight:600;line-height:1.25}.cat-desc{-webkit-line-clamp:3;color:var(--muted);-webkit-box-orient:vertical;margin:0;font-size:14.5px;line-height:1.55;display:-webkit-box;overflow:hidden}.cat-extra{gap:12px;display:grid}.cat-meta{border-top:1px solid var(--line);color:var(--teal-dark);flex-wrap:wrap;gap:4px 8px;margin-top:auto;padding-top:12px;font-size:12.5px;font-weight:700;display:flex}.cat-meta span{align-items:center;gap:8px;display:inline-flex}.cat-meta span+span:before{content:"·";color:var(--gold);font-weight:800}.cat-foot{justify-content:space-between;align-items:center;gap:12px;display:flex}.cat-status{align-items:center;gap:7px;font-size:13px;font-weight:600;display:inline-flex}.cat-status:before{content:"";background:currentColor;border-radius:50%;width:7px;height:7px}.cat-status.new,.cat-status.quiet{color:var(--muted)}.cat-status.quiet:before{background:var(--line)}.cat-status.resume{color:var(--gold-dark)}.cat-status.done{color:var(--correct)}.cat-actions{align-items:center;gap:14px;display:flex}.cat-start{background:var(--teal);color:#fff;cursor:pointer;border:none;border-radius:999px;padding:9px 22px;font-size:14px;font-weight:700;transition:background .15s}.cat-start:hover{background:var(--teal-dark)}.promo-grid{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:1fr;gap:22px;display:grid}.promo-card{--accent:var(--teal);background:var(--card);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;gap:12px;padding:26px 24px 20px;display:flex}.promo-card[data-section=reading]{--accent:var(--teal)}.promo-card[data-section=listening]{--accent:var(--soft-teal)}.promo-card[data-section=writing]{--accent:var(--gold)}.promo-card[data-section=speaking]{--accent:var(--navy)}.promo-icon{background:var(--surface-accent);width:52px;height:52px;color:var(--teal-dark);border-radius:50%;place-items:center;display:grid}.promo-card[data-section=writing] .promo-icon,.landing-quick-tile[data-section=writing] .promo-icon{color:var(--gold-dark);background:#faf0dd}.promo-card[data-section=speaking] .promo-icon,.landing-quick-tile[data-section=speaking] 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var(--line);justify-content:space-between;align-items:center;gap:12px;margin-top:auto;padding-top:14px;display:flex}.promo-card footer span{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;font-size:12px;font-weight:700}.promo-card footer button{color:var(--teal);cursor:pointer;background:0 0;border:0;padding:0;font-size:14px;font-weight:700}.promo-card footer button:hover{color:var(--teal-dark)}@media (width<=720px){.promo-grid{grid-template-columns:1fr}}.home-tests-strip{background:linear-gradient(135deg, var(--navy), #123748);border-radius:var(--radius);color:#fff;box-shadow:var(--shadow);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px 24px;margin-top:30px;padding:24px 30px;display:flex}.home-tests-strip h2{font-family:var(--font-display);color:#fff;margin:0 0 5px;font-size:22px;font-weight:600}.home-tests-strip p{color:#c6d3dd;margin:0;font-size:14.5px;line-height:1.5}.home-tests-strip .cat-start{background:var(--gold);color:var(--navy)}.home-tests-strip .cat-start:hover{background:#e0b566}.chip{color:var(--muted);background:#eef2f4;border-radius:20px;padding:4px 10px;font-weight:600}.chip.diff-beginner{color:var(--correct);background:#e7f6ec}.chip.diff-intermediate{color:var(--teal);background:#e5f0f0}.chip.diff-advanced{color:var(--gold-dark);background:#faf0dd}.start-btn{background:var(--teal);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:9px 20px;font-size:14px;font-weight:600;transition:background .15s}.start-btn:hover{background:var(--teal-dark)}.review-wrap{max-width:820px;margin:0 auto;padding:40px 28px 110px}.score-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);flex-wrap:wrap;align-items:center;gap:34px;margin-bottom:30px;padding:28px;display:flex}.score-ring{--pct:0;background:conic-gradient(var(--teal) calc(var(--pct) * 1%), #e6eaed 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9px;font-size:11px;font-weight:700}.badge.correct{background:var(--correct-bg);color:var(--correct)}.badge.wrong{background:var(--wrong-bg);color:var(--wrong)}.detail-row{color:#33424e;margin:3px 0;font-size:14px}.detail-row .k{color:var(--muted);min-width:130px;display:inline-block}.detail-row code{background:#eef2f4;border-radius:4px;padding:1px 7px;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:13px}.explanation{color:var(--muted);margin-top:8px;font-size:13px;font-style:italic}.footbar{border-top:1px solid var(--line);padding:14px max(22px, env(safe-area-inset-right)) calc(14px + env(safe-area-inset-bottom)) max(22px, env(safe-area-inset-left));z-index:18;background:#fff;align-items:center;gap:16px;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 12px #0d1b2a0f}.progress-text{color:var(--muted);font-size:14px;font-weight:600}.progress-track{background:#e6eaed;border-radius:4px;flex:1;max-width:360px;height:7px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--teal), var(--soft-teal));height:100%;transition:width .2s}.footbar-spacer{flex:1}.submit-btn{background:var(--gold);color:var(--navy);cursor:pointer;border:none;border-radius:8px;padding:11px 28px;font-size:15px;font-weight:700;transition:background .15s}.submit-btn:hover{background:#e0b566}.ghost-btn{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:0 0;border-radius:8px;padding:11px 22px;font-weight:600}.ghost-btn:hover{background:#f4f6f7}.modal-overlay{z-index:40;padding:calc(20px + env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) calc(20px + env(safe-area-inset-bottom)) max(20px, 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var(--gold);scrollbar-width:thin;scrollbar-color:#6fb7b77a transparent;flex-direction:column;flex-shrink:0;gap:4px;width:250px;height:100dvh;padding:18px 14px 26px;display:flex;position:sticky;top:0;overflow-y:auto}.sidebar::-webkit-scrollbar{width:7px}.sidebar::-webkit-scrollbar-track{background:0 0}.sidebar::-webkit-scrollbar-thumb{background:#6fb7b76b padding-box padding-box;border:2px solid #0000;border-radius:999px}.sidebar::-webkit-scrollbar-thumb:hover{background:#6fb7b7ad padding-box padding-box}.sidebar-brand{color:#fff;cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:10px;padding:6px 8px 16px;display:flex}.sidebar-brand-name{font-family:var(--font-display);color:#fff;font-size:17px;font-weight:600}.sidebar-brand-name span{color:var(--soft-teal)}.sidebar-brand-tag{color:var(--gold);font-family:var(--font-body);letter-spacing:.16em;text-transform:uppercase;margin-top:4px;font-size:10px;font-weight:700;display:block}.sidebar-group-label{text-transform:uppercase;letter-spacing:1.2px;color:#8ea3b5;padding:8px 10px 6px;font-size:11px;font-weight:700}.sidebar-section{flex-direction:column;display:flex}.sidebar-section-head{color:#dfe7ee;cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;width:100%;padding:9px 10px;font-size:15px;font-weight:600;display:flex}.sidebar-section-head:hover{background:#ffffff0f}.sidebar-icon{font-size:15px}.sidebar-section-name{flex:1}.sidebar-caret{color:#7f95a8;font-size:12px}.sidebar-tasks{margin:2px 0 6px;padding:0 0 0 8px;list-style:none}.sidebar-task{text-align:left;color:#b8c6d2;cursor:pointer;background:0 0;border:none;border-left:2px solid #0000;border-radius:8px;width:100%;padding:8px 12px 8px 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