:root{--bg-primary:#0a0e1a;--bg-secondary:#111827;--bg-card:#1a1f35;--bg-card-hover:#222845;--bg-sidebar:#0d1117;--bg-input:#1e2540;--accent:#3b82f6;--accent-hover:#2563eb;--accent-light:#3b82f626;--accent-glow:#3b82f64d;--success:#22c55e;--success-light:#22c55e26;--error:#ef4444;--error-light:#ef444426;--warning:#f59e0b;--warning-light:#f59e0b26;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--text-inverse:#0f172a;--border:#94a3b81f;--border-strong:#94a3b840;--shadow:0 4px 24px #0000004d;--shadow-sm:0 2px 8px #0003;--shadow-glow:0 0 24px #3b82f626;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-full:9999px;--sidebar-width:260px}[data-theme=light]{--bg-primary:#f8fafc;--bg-secondary:#f1f5f9;--bg-card:#fff;--bg-card-hover:#f8fafc;--bg-sidebar:#fff;--bg-input:#f1f5f9;--bg:#f1f5f9;--bg-hover:#e2e8f0;--card:#fff;--accent:#3b82f6;--accent-hover:#2563eb;--accent-light:#3b82f61a;--accent-glow:#3b82f626;--success:#16a34a;--success-light:#16a34a1a;--error:#dc2626;--error-light:#dc26261a;--warning:#d97706;--warning-light:#d977061a;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--text-inverse:#f1f5f9;--border:#0f172a14;--border-strong:#0f172a26;--shadow:0 4px 24px #0000000f;--shadow-sm:0 2px 8px #0000000a;--shadow-glow:0 0 24px #3b82f614}[data-theme=light] .sidebar{border-right-color:#0f172a14;box-shadow:1px 0 4px #0000000a}[data-theme=light] .auth-card{box-shadow:0 8px 32px 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var(--border);margin-top:auto;padding-top:16px}.sidebar-logout-btn{border-radius:var(--radius-md);color:#ef4444;cursor:pointer;background:0 0;border:none;align-items:center;gap:10px;width:100%;padding:12px;font-size:14px;font-weight:500;transition:all .2s;display:flex}.sidebar-logout-btn:hover{background:#ef44441a}.theme-toggle{cursor:pointer;background:0 0;border:none;padding:4px}.theme-toggle-track{background:var(--border-strong);border-radius:12px;width:44px;height:24px;transition:background .3s;display:block;position:relative}.theme-toggle-track.light{background:var(--accent)}.theme-toggle-thumb{background:#fff;border-radius:50%;width:20px;height:20px;transition:transform .3s;position:absolute;top:2px;left:2px;box-shadow:0 1px 3px #0003}.theme-toggle-track.light 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#3b82f64d}.theme-list{flex-direction:column;gap:8px;display:flex}.theme-item{justify-content:space-between;align-items:center;gap:16px;display:flex}.theme-item-left{flex:1;align-items:center;gap:14px;display:flex}.theme-number{border-radius:var(--radius-sm);background:var(--accent-light);min-width:36px;height:36px;color:var(--accent);justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.theme-name{color:var(--text-primary);font-size:15px;font-weight:500}.theme-count{color:var(--text-muted);white-space:nowrap;font-size:13px}.exam-hero{text-align:center;border:1px solid var(--border);border-radius:var(--radius-xl);background:linear-gradient(135deg,#3b82f61a,#8b5cf61a);margin-bottom:32px;padding:48px 24px}.exam-hero h1{background:linear-gradient(135deg, var(--accent), #8b5cf6);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:12px;font-size:36px;font-weight:800}.exam-hero 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p{color:var(--text-secondary);font-size:13px;line-height:1.5}.result-screen{text-align:center;max-width:500px;margin:0 auto;padding:48px 24px}.result-icon{border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;margin:0 auto 24px;display:flex}.result-icon.passed{background:var(--success-light);color:var(--success)}.result-icon.failed{background:var(--error-light);color:var(--error)}.result-title{margin-bottom:8px;font-size:28px;font-weight:700}.result-subtitle{color:var(--text-secondary);margin-bottom:32px;font-size:16px}.result-stats{justify-content:center;gap:16px;margin-bottom:32px;display:flex}.history-card{justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.history-status{border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.5px;padding:4px 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#3b82f61f}.auth-method-icon{border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.auth-method-icon-email{color:#3b82f6;background:#3b82f61f}.auth-method-icon-telegram{color:#08c;background:#0088cc1f}.auth-method-info{flex-direction:column;flex:1;gap:3px;display:flex}.auth-method-name{color:var(--text-primary);font-size:15px;font-weight:600}.auth-method-desc{color:var(--text-muted);font-size:12px}.auth-method-arrow{color:var(--text-muted);flex-shrink:0;transition:color .2s}.auth-method-btn:hover .auth-method-arrow{color:var(--accent)}.auth-bot-link{color:#08c;border-radius:var(--radius-sm);background:#0088cc1f;align-items:center;gap:6px;margin-top:10px;padding:8px 16px;font-size:13px;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.auth-bot-link:hover{background:#08c3}.auth-bot-info{border-radius:var(--radius-md);background:#0088cc0f;border:1px solid #0088cc26;margin-bottom:16px;padding:16px}.auth-bot-info-header{color:#08c;align-items:center;gap:8px;margin-bottom:8px;font-size:16px;font-weight:700;display:flex}.auth-bot-info-desc{color:var(--text-muted);margin-bottom:12px;font-size:13px;line-height:1.5}.auth-bot-info-desc strong{color:#08c}.auth-bot-info-steps{flex-direction:column;gap:8px;margin-bottom:12px;display:flex}.auth-bot-step{color:var(--text-secondary);align-items:flex-start;gap:10px;font-size:13px;line-height:1.4;display:flex}.auth-bot-step strong{color:#08c;font-family:monospace}.auth-bot-step-num{color:#08c;background:#0088cc1f;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;font-size:12px;font-weight:700;display:flex}.auth-support-btn{background:var(--accent-light);width:38px;height:38px;color:var(--accent);border:1px solid var(--border);cursor:pointer;z-index:10;border-radius:50%;justify-content:center;align-items:center;transition:all 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