:root{--bg:#f7f8f4;--white:#fff;--ink:#23382f;--muted:#798179;--green:#174f42;--light:#eaf3eb;--line:#e3e8df;--accent:#c8e8a6;--red:#a94738;--shadow:0 8px 28px #263c2c06;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-size:15px;line-height:1.6}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button{color:inherit}a{color:var(--green)}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible{outline:3px solid #8caf73;outline-offset:4px}input:focus,select:focus,textarea:focus{outline:2px solid #81ab8d;outline-offset:2px}[hidden]{display:none!important}.header{background:#ffffffbb;border-bottom:1px solid var(--line)}.header-inner{max-width:1240px;margin:auto;height:88px;display:flex;align-items:center;gap:35px;padding:0 30px}.brand{display:flex;align-items:center;text-decoration:none;gap:12px;color:var(--ink)}.brand-icon{display:grid;place-items:center;background:var(--green);color:white;width:38px;height:38px;border-radius:11px;font-size:26px;line-height:1}.brand strong{font-size:30px;letter-spacing:-1.5px}.brand-dot{color:#659159}.brand-caption{font-size:11px;line-height:1.5;color:var(--muted);max-width:85px;border-left:1px solid var(--line);padding-left:15px;margin-left:6px}.nav{display:flex;gap:4px;margin:auto}.nav-btn{border:0;background:none;padding:11px 14px;border-radius:8px;font-size:13px;font-weight:550;color:#66716a;white-space:nowrap}.nav-btn>span:first-child{font-size:20px;line-height:1;margin-right:6px;vertical-align:-1px}.nav-btn.active{background:#edf2e9;color:var(--green)}.tiny-count{display:inline-block;border-radius:5px;background:#e4e9df;font-size:10px;padding:0 5px;margin-left:4px}.header-note{font-size:11px;white-space:nowrap;color:var(--muted)}.header-note 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12px;gap:0}.nav-btn{font-size:11px;padding:9px 10px}.nav-btn>span:first-child{font-size:17px;margin-right:4px}main{padding:0 20px}.hero{padding:35px 0 28px}.hero h1{font-size:37px;letter-spacing:-1.2px}.hero-visual{display:none}.eyebrow{font-size:9px;letter-spacing:1.4px}.hero-description{font-size:13px}.hero-tags{flex-wrap:wrap;gap:8px 16px;margin-top:20px}.search-box{padding:18px 17px;gap:12px}.search-box input{font-size:14px}.search-box kbd{display:none}.search-toolbar{padding:11px 16px;gap:8px}.select-wrap{gap:6px;max-width:100%}.select-wrap select{font-size:11px;max-width:230px}.search-hint{display:none}.subject-chips{flex-wrap:nowrap;overflow-x:auto;padding:17px 0 23px;scrollbar-width:none}.chip{white-space:nowrap;font-size:10px}.content-grid,.training-layout{grid-template-columns:1fr}.content-grid aside{display:none}.section-heading h2{font-size:15px}.section-heading .muted{font-size:10px}.question-card{padding:18px}.question-text{font-size:14px}.answer-box{padding:12px 14px}.answer-content{font-size:13px}.card-footer{font-size:9px;gap:10px}.training-layout aside{order:-1}.training-layout .tip-card{display:none}.score-card{padding:16px 20px;display:flex;align-items:center;gap:15px;flex-wrap:wrap}.score-card>.eyebrow,.score-card>.progress-track,.score-row{display:none}.score-value{font-size:30px;margin:0}.score-value span{font-size:18px}.score-card>p{margin:0;font-size:11px}.train-heading{padding:32px 0 23px}.train-heading h1{font-size:32px}.quiz-card{padding:20px}.quiz-card h2{font-size:16px}.quiz-option{font-size:13px;padding:12px}.training-config{gap:10px}.training-config select{padding:10px}.training-config button{width:100%;padding:8px}.quiz-actions .button{font-size:12px;padding:12px 16px}footer{margin:40px 20px 0;gap:12px;padding:20px 0;flex-wrap:wrap;font-size:10px}footer button{font-size:10px}.subject-badge{max-width:78%}dialog{padding:20px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Minimal search page: just navigation, input, and results after typing. */
.search-only main{max-width:940px;padding-top:70px}
.search-only .search-toolbar,.search-only .subject-chips,.search-only .content-grid>aside,.search-only footer,.search-only .header-note,.search-only .brand-caption,.search-only [data-mode="saved"],.search-only .bookmark{display:none}
.search-only .content-grid{grid-template-columns:1fr;margin-top:30px}
.search-only .search-box{padding:22px 25px}
.search-only .search-box:focus-within{border-radius:12px}
.response-legend{padding:15px;background:#f4f7ef;border-radius:8px;font-size:13px;margin:14px 0}
.response-legend>div+div{margin-top:8px}.response-legend b{display:inline-block;min-width:23px;color:var(--green)}
@media(max-width:720px){.search-only main{padding-top:32px}.search-only .nav{justify-content:flex-start;gap:18px}.search-only .search-box{padding:20px 16px}}