:root{--color-bg:#fff;--color-bg-secondary:#f8f9fa;--color-bg-card:#fff;--color-text:#4a4a5a;--color-text-heading:#1a1a2e;--color-text-muted:#8a8a9a;--color-border:#e8e8ee;--color-accent:#7c3aed;--color-accent-hover:#6d28d9;--color-accent-light:#7c3aed1a;--color-accent-border:#7c3aed4d;--color-danger:#ef4444;--color-success:#22c55e;--color-shadow:#00000014;--font-sans:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono:ui-monospace, "Cascadia Code", Consolas, monospace;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--header-height:64px;--max-width:1100px;--content-padding:24px}[data-theme=dark]{--color-bg:#0f1117;--color-bg-secondary:#1a1b23;--color-bg-card:#1e1f2a;--color-text:#a0a0b4;--color-text-heading:#e8e8f0;--color-text-muted:#6a6a80;--color-border:#2a2b38;--color-accent:#a78bfa;--color-accent-hover:#8b5cf6;--color-accent-light:#a78bfa1f;--color-accent-border:#a78bfa4d;--color-danger:#f87171;--color-success:#4ade80;--color-shadow:#0000004d}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);min-height:100vh;font-size:1rem;line-height:1.6}#root{flex-direction:column;min-height:100vh;display:flex}h1,h2,h3,h4{color:var(--color-text-heading);font-weight:600;line-height:1.3}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}a{color:var(--color-accent);text-decoration:none;transition:color 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.5rem;font-size:1.25rem;font-weight:700}.progress-completed-date{color:var(--color-text-secondary);font-size:.8rem}.header-nav-progress{align-items:center;gap:4px;display:flex}@media (width<=600px){.progress-stats{grid-template-columns:1fr;gap:.75rem}.progress-stat-card{text-align:left;justify-content:space-between;align-items:center;padding:1rem;display:flex}.progress-stat-value{font-size:1.5rem}}.view-as-select{border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text-muted);cursor:pointer;padding:4px 8px;font-size:.8rem;transition:border-color .2s,color 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.1)}.profile-badge--employee{color:#10b981;background:#10b9811a}.profile-badge--guest{color:var(--color-text-muted);background:var(--color-bg-secondary)}.profile-badge--blocked{color:var(--color-danger);background:rgba(from var(--color-danger) r g b / .1)}@media (width<=768px){.view-as-select{padding:3px 6px;font-size:.75rem}.guest-cta-banner{padding:24px 16px}}.scroll-to-top{border:1px solid var(--color-border);background:var(--color-bg-secondary);width:44px;height:44px;color:var(--color-text-secondary);cursor:pointer;opacity:0;visibility:hidden;z-index:90;border-radius:50%;justify-content:center;align-items:center;transition:opacity .25s,visibility .25s,transform .25s,background .2s,color .2s;display:flex;position:fixed;bottom:24px;right:24px;transform:translateY(12px);box-shadow:0 2px 8px #0000001f}.scroll-to-top--visible{opacity:1;visibility:visible;transform:translateY(0)}.scroll-to-top:hover{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}@media (width<=768px){.scroll-to-top{width:40px;height:40px;bottom:16px;right:16px}input[type=text],input[type=email],input[type=number],input[type=password],input[type=search],input[type=url],textarea,select{font-size:16px!important}.view-as-select{display:none}.lesson-detail.card{padding:20px 16px}.lesson-actions{flex-direction:column;gap:8px}.lesson-complete-btn,.favorite-btn-full{justify-content:center;width:100%}.btn{min-height:44px}.lesson-card{min-height:60px}.admin-nav a{align-items:center;min-height:40px;display:flex}}@media (width<=480px){.search-input{padding:12px 36px 12px 40px;font-size:16px}.catalog-empty,.favorites-empty{padding:32px 16px}.page-header{margin-bottom:20px}.page{padding:20px 0}.catalog-progress-bar{padding:12px 16px}.lesson-tag{padding:3px 8px;font-size:.75rem}}@media (width<=360px){.admin-page-header{flex-direction:column;align-items:flex-start;gap:8px}.stats-grid{grid-template-columns:1fr}}