:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#20242a;--accent:#58c3a0;--accent-dark:#2f9e7d;--ink:#20242a;--muted:#737b86;--line:#e3e9ed;--card:#fff;--danger:#e85d75;--warn:#f6a638;--shadow:0 18px 46px #2647581f;background:#f3f7f8;font-family:Inter,-apple-system,BlinkMacSystemFont,SF Pro Display,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;background:#f3f7f8}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.58}.app-shell{min-height:100vh;padding-bottom:calc(92px + env(safe-area-inset-bottom))}.app-header{padding:calc(18px + env(safe-area-inset-top)) 22px 22px;color:#fff;box-shadow:var(--shadow);background:linear-gradient(135deg,#58c3a0,#72dcc2);border-bottom-right-radius:30px;border-bottom-left-radius:30px;justify-content:space-between;align-items:center;gap:16px;display:flex}.app-header h1,.section-head h2,.hero-card h2,.intro-card h2,.auth-card h1{letter-spacing:-.04em;margin:4px 0 0;line-height:1.05}.eyebrow{color:inherit;opacity:.72;text-transform:uppercase;letter-spacing:.12em;font-size:11px;font-weight:800;display:inline-flex}.app-content{width:min(1040px,100%);margin:0 auto;padding:22px 18px 0}.bottom-nav{z-index:20;padding:10px 8px calc(10px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffffff2;border-top:1px solid #d7e0e6e6;grid-template-columns:repeat(6,1fr);gap:2px;display:grid;position:fixed;bottom:0;left:0;right:0}.bottom-nav button{color:#7a828c;background:0 0;border:0;border-radius:16px;place-items:center;gap:3px;min-width:0;padding:6px 2px;font-size:11px;font-weight:800;display:grid}.bottom-nav button.active{color:var(--accent-dark);background:#58c3a01f}.page-stack{gap:18px;display:grid}.section-head,.hero-card,.intro-card,.list-card,.profile-card,.submit-card,.auth-card{background:var(--card);border:1px solid #dae2e7e6;border-radius:26px;box-shadow:0 12px 32px #2a435314}.section-head,.hero-card{padding:24px}.section-head p,.hero-card p,.intro-head p,.auth-card p{color:var(--muted);margin:10px 0 0;line-height:1.5}.hero-card{color:#fff;background:linear-gradient(135deg,#58c3a0,#74dbc1)}.hero-card p,.hero-card .eyebrow{color:#ffffffdb}.hero-meta{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.hero-meta span,.net-pill,.mode-chip{border-radius:999px;align-items:center;padding:7px 12px;font-size:12px;font-weight:900;display:inline-flex}.hero-meta span{background:#ffffff2e}.net-pill{white-space:nowrap;background:#ffffff2e}.net-pill.offline{color:#bf4f62;background:#fffffff0}.net-pill.online{color:var(--accent-dark);background:#fffffff0}.grid-cards,.action-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.feature-card{min-height:148px;color:var(--ink);text-align:left;background:#fff;border:1px solid #dae2e7f2;border-radius:24px;align-content:start;justify-items:start;gap:9px;padding:20px;display:grid;box-shadow:0 12px 28px #2a435314}.feature-card svg{color:var(--accent-dark)}.feature-card b{letter-spacing:-.03em;font-size:18px}.feature-card span{color:var(--muted);line-height:1.35}.feature-card.accent{color:#fff;background:linear-gradient(135deg,#58c3a0,#72dcc2)}.feature-card.accent svg,.feature-card.accent span{color:#ffffffe6}.wide-card{grid-column:1/-1}.list-card,.intro-card,.profile-card,.submit-card{padding:18px}.list-head,.intro-head,.test-card-head,.modal-head,.runner-top,.runner-title-row,.profile-row,.toolbar{justify-content:space-between;align-items:center;gap:14px;display:flex}.list-head h3,.card-title h3,.modal-head h3{letter-spacing:-.03em;margin:4px 0 0}.topic-card,.test-card{border:1px solid var(--line);background:#fbfcfd;border-radius:20px;gap:12px;margin-top:12px;padding:14px;display:grid}.topic-card{grid-template-columns:1fr auto;align-items:center}.topic-card.compact{padding:12px}.topic-main{min-width:0;color:var(--ink);text-align:left;background:0 0;border:0;align-items:center;gap:12px;padding:0;display:flex}.topic-main svg,.profile-row svg{color:var(--accent-dark);flex:none}.topic-main span,.profile-row div,.test-card-head div{gap:4px;min-width:0;display:grid}.topic-main b,.test-card b{overflow-wrap:anywhere}small,.topic-main small,.test-card small,.card-title span,.profile-row span,.security-grid span{color:var(--muted);line-height:1.35}.primary,.secondary,.ghost,.danger{border:0;border-radius:16px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:0 16px;font-weight:900;display:inline-flex}.primary{color:#fff;background:linear-gradient(135deg, var(--accent), #45b18f)}.secondary{color:var(--accent-dark);background:#58c3a01f}.ghost{color:var(--ink);background:#eef3f5}.danger{color:#fff;background:var(--danger)}.small{border-radius:13px;min-height:38px;padding-inline:12px}.wide{width:100%}.toolbar{min-height:44px}.segmented{background:#eef4f5;border-radius:18px;grid-template-columns:repeat(2,1fr);gap:8px;padding:5px;display:grid}.segmented button{color:#68717b;background:0 0;border:0;border-radius:14px;min-height:42px;font-weight:900}.segmented button.active{color:var(--accent-dark);background:#fff;box-shadow:0 8px 18px #2a435314}.intro-card{gap:16px;display:grid}.question-count{min-width:58px;height:58px;color:var(--accent-dark);background:#58c3a021;border-radius:19px;place-items:center;padding:0 12px;font-size:20px;font-weight:950;display:grid}.range-row{gap:10px;display:grid}.range-row input{width:100%;accent-color:var(--accent-dark)}.quick-counts,.block-grid{flex-wrap:wrap;gap:8px;display:flex}.quick-counts button{color:var(--ink);background:#eef4f5;border:0;border-radius:999px;padding:9px 14px;font-weight:900}.check-grid{gap:10px;display:grid}.check-grid label{background:#f4f8f8;border-radius:16px;align-items:center;gap:10px;padding:12px;font-weight:800;display:flex}.check-grid input{accent-color:var(--accent-dark);width:19px;height:19px}.check-grid span{align-items:center;gap:8px;display:inline-flex}.block-grid button{border:1px solid var(--line);min-height:72px;color:var(--ink);text-align:left;background:#fff;border-radius:17px;flex:132px;justify-items:start;gap:3px;padding:10px 12px;display:grid}.block-grid svg{color:var(--accent-dark)}.form-stack{gap:14px;display:grid}.form-stack label{gap:7px;font-weight:850;display:grid}input,select,textarea{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:16px;outline:0;padding:13px 14px}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 4px #58c3a024}textarea{resize:vertical}.two-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.auth-screen{min-height:100vh;padding:calc(20px + env(safe-area-inset-top)) 18px calc(20px + env(safe-area-inset-bottom));background:radial-gradient(circle at top,#58c3a038,#0000 34%),#f3f7f8;place-items:center;display:grid}.auth-card{width:min(460px,100%);padding:24px}.logo-mark{color:#fff;background:linear-gradient(135deg, var(--accent), #72dcc2);border-radius:24px;place-items:center;width:76px;height:76px;margin-bottom:16px;display:grid}.file-hero{background:#58c3a01f;border-radius:20px;align-items:center;gap:14px;padding:14px;display:flex}.file-hero svg{color:var(--accent-dark)}.file-hero div,.card-title,.security-grid div{gap:4px;display:grid}.runner{gap:14px;display:grid}.runner-top{top:calc(8px + env(safe-area-inset-top));z-index:8;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f3f7f8d6;border-radius:22px;padding:8px;position:sticky}.runner-progress{color:var(--muted);font-weight:900}.heart{width:44px;height:44px;color:var(--accent-dark);background:#fff;border:0;border-radius:50%;place-items:center;display:grid;box-shadow:0 8px 20px #2a435314}.heart.active{color:#e85572}.runner-card{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:26px;gap:16px;padding:18px;display:grid}.runner-card h2{letter-spacing:-.035em;margin:0;font-size:clamp(20px,5vw,30px);line-height:1.2}.mode-chip{color:var(--accent-dark);background:#58c3a021}.tiny-link{color:#8a929c;background:0 0;border:0;align-items:center;gap:5px;font-size:12px;font-weight:850;display:inline-flex}.options{gap:10px;display:grid}.option{border:1px solid var(--line);width:100%;min-height:56px;color:var(--ink);text-align:left;background:#fbfcfd;border-radius:18px;justify-content:space-between;align-items:center;gap:12px;padding:14px;font-weight:750;display:flex}.option.selected{border-color:var(--accent);background:#58c3a01a}.option.correct{color:#24795e;background:#58c3a029;border-color:#45b18f}.option.wrong{color:#b63f58;background:#e85d751a;border-color:#e85d7573}.explain,.review-box{background:#f4f8f8;border-radius:18px;gap:8px;padding:14px;display:grid}.explain p{color:var(--muted);margin:0;line-height:1.5}.runner-actions{grid-template-columns:1fr 1fr;gap:10px;display:grid}.modal-backdrop{z-index:50;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#111c2457;place-items:center;padding:22px;display:grid;position:fixed;inset:0}.modal-card{background:#fff;border-radius:26px;gap:14px;width:min(480px,100%);padding:18px;display:grid;box-shadow:0 24px 80px #1222303d}.result-modal h3{color:var(--accent-dark);margin:0;font-size:44px}.icon-button{background:#eef4f5;border:0;border-radius:50%;place-items:center;width:38px;height:38px;display:grid}.review-box button{color:var(--ink);text-align:left;background:#fff;border:0;border-radius:14px;padding:10px 12px}.profile-row{justify-content:flex-start}.security-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.security-grid div{background:#f4f8f8;border-radius:18px;padding:14px}.security-grid svg{color:var(--accent-dark)}.info-box,.success-box,.error-box,.empty-inline,.empty-state{border-radius:18px;padding:14px;line-height:1.45}.info-box{color:#6d5721;background:#f6a63824;border:1px solid #f6a6383d}.success-box{color:#24795e;background:#58c3a024;border:1px solid #58c3a040}.error-box{color:#b63f58;background:#e85d751a;border:1px solid #e85d7538}.empty-inline,.empty-state{color:var(--muted);background:#f4f8f8}.empty-state{justify-items:start;gap:12px;display:grid}.loader-dot{background:var(--accent);border-radius:50%;width:13px;height:13px;animation:.9s ease-in-out infinite alternate pulse}.app-loading{min-height:50vh;color:var(--muted);place-items:center;font-weight:900;display:grid}.muted{color:var(--muted)}.task-cond-toggle{text-align:left;width:100%;color:var(--ink);background:0 0;border:none;justify-content:space-between;align-items:center;padding:0 0 8px;display:flex}.task-cond-chevron{color:var(--muted);flex-shrink:0;font-size:12px}.task-cond-text{white-space:pre-wrap;margin:0;line-height:1.55}.task-cond-preview{color:var(--muted);margin:0;line-height:1.5}.tab-row{gap:8px;padding:0 4px;display:flex}.tab-btn{border:1.5px solid var(--border);color:var(--muted);cursor:pointer;background:0 0;border-radius:20px;align-items:center;gap:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:border-color .15s,color .15s,background .15s;display:flex}.tab-btn:hover{border-color:var(--accent);color:var(--accent)}.tab-btn.active{border-color:var(--accent);background:var(--accent);color:#fff}.article-content{color:var(--ink);padding:16px;font-size:15px;line-height:1.65}.article-content h1,.article-content h2,.article-content h3{margin:1.2em 0 .5em;font-weight:700;line-height:1.3}.article-content h1{font-size:1.25em}.article-content h2{font-size:1.1em}.article-content h3{font-size:1em}.article-content p{margin:.6em 0}.article-content ul,.article-content ol{margin:.6em 0;padding-left:1.4em}.article-content li{margin:.3em 0}.article-content img{border-radius:8px;max-width:100%;margin:8px 0}.article-content table{border-collapse:collapse;width:100%;margin:8px 0;font-size:13px}.article-content th,.article-content td{border:1px solid var(--border);text-align:left;padding:6px 8px}.article-content th{background:var(--surface);font-weight:600}@keyframes pulse{0%{opacity:.35;transform:scale(.82)}to{opacity:1;transform:scale(1.08)}}@media (max-width:720px){.app-header{padding-inline:18px}.app-header h1{font-size:28px}.grid-cards,.action-grid,.security-grid,.two-cols{grid-template-columns:1fr}.topic-card,.test-card-head{grid-template-columns:1fr;align-items:stretch}.bottom-nav{grid-template-columns:repeat(6,minmax(0,1fr))}.bottom-nav button span{font-size:10px}}@media (max-width:420px){.bottom-nav button span{display:none}.app-content{padding-inline:14px}}