:root{--bg:#f7f8fb;--surface:#fff;--ink:#172033;--muted:#657085;--line:#dde4ef;--brand:#2458d3;--brand-dark:#183b8c;--green:#16a875;--green-bg:#dcf8eb;--red:#d84d4d;--red-bg:#ffe6e6;--radius:8px}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button{font:inherit}.app-shell{grid-template-columns:248px 1fr;min-height:100vh;display:grid}.sidebar{color:#e9eef8;background:#101827;height:100vh;padding:22px 16px;position:sticky;top:0}.brand{align-items:center;gap:10px;margin-bottom:28px;display:flex}.brand-mark{width:38px;height:38px;color:var(--brand);background:#fff;border-radius:8px;place-items:center;font-weight:950;display:grid}.brand-name{font-weight:850;line-height:1.05}.brand-name span{color:#9fb4da;margin-top:4px;font-size:12px;font-weight:650;display:block}.side-nav{gap:6px;display:grid}.side-nav button{border-radius:var(--radius);color:#bac8df;text-align:left;cursor:pointer;background:0 0;border:0;min-height:42px;padding:0 12px;font-weight:750}.side-nav button.active{color:#fff;background:#23304b}.main{min-width:0}.topbar{z-index:5;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffe0;justify-content:space-between;align-items:center;min-height:72px;padding:14px 28px;display:flex;position:sticky;top:0}.mobile-brand{font-weight:900;display:none}.back-link{border:1px solid var(--line);border-radius:var(--radius);min-height:40px;color:var(--brand-dark);cursor:pointer;background:#fff;padding:0 13px;font-weight:850}.profile{align-items:center;gap:10px;display:flex}.avatar{color:#52380d;background:#ffd670;border-radius:50%;place-items:center;width:40px;height:40px;font-weight:900;display:grid}.profile small{color:var(--muted);font-weight:650;display:block}.content{max-width:1320px;margin:0 auto;padding:28px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 28px #182a4e0d}.category-grid,.set-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.category-card{border:1px solid var(--line);border-radius:var(--radius);min-height:154px;color:var(--ink);text-align:left;cursor:pointer;background:#fff;align-content:space-between;padding:16px;display:grid}.category-card.disabled{opacity:.46;cursor:default}.category-icon{border-radius:var(--radius);background:var(--brand);color:#fff;place-items:center;width:40px;height:40px;font-weight:950;display:grid}.category-card h2{margin:0;font-size:17px}.category-card p,.subcopy{color:var(--muted);font-size:14px;line-height:1.45}.status{color:var(--green);font-size:12px;font-weight:900}.panel-head{border-bottom:1px solid 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button:disabled{opacity:.62;cursor:default}.analytics-grid,.analytics-panels,.analytics-table-wrap,.analytics-empty{max-width:1280px;margin-left:auto;margin-right:auto}.analytics-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.analytics-card,.analytics-panel,.analytics-table-wrap,.analytics-empty{border-radius:var(--radius);background:#fff;border:1px solid #dce5f0;box-shadow:0 10px 24px #182a4e0d}.analytics-card{padding:16px}.analytics-card span{color:var(--muted);font-size:12px;font-weight:850}.analytics-card strong{margin-top:8px;font-size:30px;line-height:1;display:block}.analytics-panels{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:14px;display:grid}.analytics-panel{padding:16px}.analytics-panel h2,.analytics-section-head h2{margin:0;font-size:17px}.analytics-panel p{color:var(--muted);margin:16px 0 0;font-weight:750}.analytics-list-row{color:#303b4f;border-bottom:1px solid #edf1f6;grid-template-columns:1fr 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(width<=1080px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.mobile-brand{display:block}.category-grid,.set-grid,.analytics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.panel-head{display:block}.summary{min-width:0;margin-top:14px}}@media (width<=720px){.topbar{padding:12px 16px}.profile>div:not(.avatar){display:none}.content{padding:16px 14px 78px}.panel{padding:16px}.category-grid,.set-grid{grid-template-columns:1fr}.summary{grid-template-columns:repeat(3,minmax(0,1fr))}.summary div{padding:10px}.summary strong{font-size:20px}.analytics-page{padding:18px 14px}.analytics-header{align-items:flex-start}.analytics-actions{flex-wrap:wrap;justify-content:flex-end}.analytics-grid,.analytics-panels{grid-template-columns:1fr}.analytics-card strong{font-size:26px}.bottom-nav{z-index:20;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#0f172ac7;border-radius:22px;grid-template-columns:repeat(4,1fr);padding:6px;display:grid;position:fixed;bottom:12px;left:14px;right:14px}.bottom-nav button{color:#ffffff9e;background:0 0;border:0;min-height:54px;font-size:11px;font-weight:850}.bottom-nav .active{color:#fff}.test-shell{background:#fff;padding-bottom:76px}.test-head{background:#eaf3ff;border-bottom:1px solid #c9d9ef;min-height:88px;padding:8px 12px}.head-inner,.question-list{width:calc(100% - 28px)}.head-inner{grid-template-columns:1fr;justify-items:center;gap:7px}.back-circle,.score-pill{display:none}.test-head h1{letter-spacing:0;font-size:23px;line-height:1}.text-size-control{gap:6px;min-height:26px;padding:0 8px;font-size:10px}.text-size-control input{width:118px}.question-list{gap:12px;margin-top:18px;padding-bottom:92px}.question-card{background:#fbfcff;border-color:#e0e6ef;border-left-width:3px;border-radius:16px;min-height:auto;padding:14px 12px 14px 54px;box-shadow:0 6px 16px #192f520d}.question-number{width:30px;height:30px;font-size:10px;top:14px;left:12px;transform:none}.question-card h2{min-height:0;font-family:Nirmala UI,Latha,Inter,ui-sans-serif,system-ui,sans-serif;font-size:var(--test-question-size,15px);letter-spacing:0;margin:0 0 12px;font-weight:950;line-height:1.28}.option-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.option{min-height:38px;font-family:Nirmala UI,Latha,Inter,ui-sans-serif,system-ui,sans-serif;font-size:var(--test-option-size,12px);letter-spacing:0;border-radius:9px;gap:7px;padding:7px 9px;font-weight:760;line-height:1.16}.option span{width:20px;height:20px;font-size:7px}.test-footer{background:#fffffffa;min-height:68px;padding:8px 12px}.footer-stats{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.footer-stat{border:1px solid #dce5f0;min-height:48px;display:grid;box-shadow:0 8px 20px #182a4e0f}.footer-stat strong{font-size:16px}.footer-stat span{font-size:10px}.result-overlay{align-items:end;padding:14px 14px 86px}.result-modal{border-radius:16px;padding:18px}.result-burst{width:94px;height:94px}.result-burst strong{width:68px;height:68px;font-size:19px}.result-modal h2{font-size:20px}.result-score{font-size:36px}.result-stats .footer-stat{min-height:52px}}