:root{--primary: #009fda;--primary-hover: #008bc4;--primary-fg: #ffffff;--primary-soft: #e4f4fc;--accent-1: #009fda;--accent-2: #22a06b;--accent-3: #e5586e;--accent-4: #f0a93f;--accent-5: #7c6cd4;--accent-6: #16b1a6;--success: #22a06b;--success-soft: #e6f6ee;--danger: #e5484d;--danger-soft: #fdeaea;--bg: #f6f8fb;--surface: #ffffff;--surface-2: #eef2f7;--border: #e6eaf0;--text: #141922;--text-muted: #69748a;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(20, 30, 50, .05), 0 1px 3px rgba(20, 30, 50, .04);--shadow-md: 0 8px 30px rgba(20, 30, 50, .1);color-scheme:light}[data-theme=dark]{--primary: #2bb3e6;--primary-hover: #4cc1ea;--primary-fg: #07232f;--primary-soft: rgba(43, 179, 230, .16);--success: #3fb985;--success-soft: rgba(63, 185, 133, .14);--danger: #f1656a;--danger-soft: rgba(241, 101, 106, .14);--bg: #0d1117;--surface: #161b22;--surface-2: #21262d;--border: #2a313c;--text: #e6edf3;--text-muted: #8b97a7;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 8px 30px rgba(0, 0, 0, .5);color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}.center-muted{display:grid;place-items:center;min-height:100vh;color:var(--text-muted)}.muted{color:var(--text-muted)}.sm-note{font-size:13px;margin-top:10px}.app-root{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:10px;cursor:pointer}.brand-logo{height:22px}.brand-name{font-weight:700;letter-spacing:.01em}.topbar-right{display:flex;align-items:center;gap:10px}.who{color:var(--text-muted);font-size:13px}.main{flex:1;width:100%;max-width:1080px;margin:0 auto;padding:32px 24px 64px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--primary);color:var(--primary-fg);border:none;border-radius:var(--radius-md);padding:9px 18px;font:inherit;font-weight:600;cursor:pointer;transition:background .15s,transform .15s,box-shadow .15s}.btn:hover{background:var(--primary-hover)}.btn:disabled{opacity:.6;cursor:default}.btn.lg{padding:12px 26px;font-size:16px}.btn.sm{padding:6px 12px;font-size:13px}.btn.block{width:100%}.btn.ghost{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn.ghost:hover{border-color:var(--text-muted);background:var(--surface)}a.btn{text-decoration:none}.icon-btn{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:var(--radius-full);width:32px;height:32px;cursor:pointer;display:grid;place-items:center;font-size:14px;transition:border-color .15s}.icon-btn:hover{border-color:var(--text-muted)}.field{margin-bottom:14px;text-align:left}.field label{display:block;font-size:13px;color:var(--text-muted);margin-bottom:6px}.input{width:100%;padding:9px 12px;font:inherit;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-md);transition:border-color .15s,box-shadow .15s}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.select{width:auto;cursor:pointer}.banner{padding:10px 14px;border-radius:var(--radius-md);font-size:14px;margin-bottom:14px}.banner.ok{background:var(--success-soft);color:var(--success)}.banner.err{background:var(--danger-soft);color:var(--danger)}.logo-white,[data-theme=dark] .logo-dark{display:none}[data-theme=dark] .logo-white{display:inline}.gate{display:grid;place-items:center;min-height:100vh;padding:24px}.gate-card{width:100%;max-width:400px;text-align:center}.gate-card .brand{justify-content:center;cursor:default}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:24px}.hero{margin-bottom:28px}.hero h1{font-size:28px;font-weight:700;margin-bottom:6px}.hero p{color:var(--text-muted)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}.training-card{position:relative;overflow:hidden;display:flex;flex-direction:column;align-items:flex-start;gap:8px;text-align:left;font:inherit;color:var(--text);cursor:pointer;transition:transform .18s,box-shadow .18s}.training-card:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--card-accent, var(--primary))}.training-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}.card-icon{width:42px;height:42px;border-radius:var(--radius-md);display:grid;place-items:center;color:var(--card-accent, var(--primary));background:color-mix(in srgb,var(--card-accent, var(--primary)) 12%,transparent);margin-bottom:2px}.training-card strong{font-size:17px;font-weight:700}.card-subtitle{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--card-accent, var(--primary))}.training-card p{color:var(--text-muted);font-size:14px}.card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;margin-top:auto;padding-top:12px;font-size:13px;color:var(--text-muted)}.chip{padding:3px 10px;border-radius:var(--radius-full);background:var(--surface-2);font-size:12px;font-weight:600;white-space:nowrap}.chip.ok{background:var(--success-soft);color:var(--success)}.chip.fail{background:var(--danger-soft);color:var(--danger)}.quiz-wrap{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:16px;align-items:flex-start}.quiz-card{width:100%;position:relative;overflow:hidden;padding:28px}.quiz-card:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--card-accent, var(--primary))}.quiz-card.intro h1{font-size:26px;margin:4px 0 8px}.intro-facts{margin:18px 0;padding-left:20px;color:var(--text-muted);display:grid;gap:6px}.quiz-card.intro .btn.lg{margin-top:8px}.quiz-progress{width:100%;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text-muted)}.quiz-progress .bar{height:6px;border-radius:var(--radius-full);background:var(--surface-2);overflow:hidden}.quiz-progress .fill{height:100%;border-radius:var(--radius-full);transition:width .25s ease}.quiz-card h2{font-size:19px;font-weight:700;margin-bottom:18px}.options{display:grid;gap:10px}.option{display:flex;align-items:center;gap:12px;text-align:left;font:inherit;color:var(--text);cursor:pointer;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px 14px;transition:border-color .15s,background .15s,opacity .15s}.option:hover:not(:disabled){border-color:var(--primary);background:var(--primary-soft)}.option:disabled{cursor:default}.option-letter{flex:none;width:26px;height:26px;border-radius:var(--radius-full);display:grid;place-items:center;font-size:13px;font-weight:700;background:var(--surface-2);color:var(--text-muted)}.option.correct{border-color:var(--success);background:var(--success-soft)}.option.correct .option-letter{background:var(--success);color:#fff}.option.wrong{border-color:var(--danger);background:var(--danger-soft)}.option.wrong .option-letter{background:var(--danger);color:#fff}.option.dim{opacity:.55}.explain{margin-top:16px;padding:12px 14px;border-radius:var(--radius-md);font-size:14px}.explain.ok{background:var(--success-soft)}.explain.err{background:var(--danger-soft)}.next-btn{margin-top:16px}.quiz-card.result{text-align:center;padding:40px 28px}.result-badge{width:64px;height:64px;border-radius:var(--radius-full);display:grid;place-items:center;margin:0 auto 16px;font-size:30px;font-weight:700}.result-badge.ok{background:var(--success-soft);color:var(--success)}.result-badge.fail{background:var(--danger-soft);color:var(--danger)}.quiz-card.result h1{font-size:24px;margin-bottom:8px}.result-score{font-size:18px;font-weight:600;margin-bottom:8px}.result-actions{display:flex;gap:10px;justify-content:center;margin-top:22px}.results{display:flex;flex-direction:column;gap:16px;align-items:flex-start}.results-head{display:flex;align-items:center;justify-content:space-between;width:100%;gap:16px;flex-wrap:wrap}.results-head h1{font-size:24px}.section-label{font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--text-muted);margin-top:8px}.table-card{width:100%;padding:6px 0;overflow-x:auto}.table-card table{width:100%;border-collapse:collapse;font-size:14px}.table-card th,.table-card td{padding:10px 18px;text-align:left;white-space:nowrap}.table-card th{color:var(--text-muted);font-weight:600;font-size:12px;letter-spacing:.04em;border-bottom:1px solid var(--border)}.table-card tr+tr td{border-top:1px solid var(--border)}@media (max-width: 640px){.topbar{padding:10px 14px}.who{display:none}.main{padding:20px 14px 48px}}