:root{--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-primary-light: #3b82f6;--color-success: #16a34a;--color-danger: #dc2626;--color-warning: #f59e0b;--color-bg: #ffffff;--color-bg-secondary: #f8fafc;--color-bg-card: #ffffff;--color-text: #1e293b;--color-text-secondary: #64748b;--color-border: #e2e8f0;--color-correct: #16a34a;--color-wrong: #dc2626;--color-critical: #dc2626;--max-width: 1200px;--header-height: 64px;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.6;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}body{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto;display:block}h1,h2,h3,h4{line-height:1.3;color:var(--color-text)}h1{font-size:1.875rem}h2{font-size:1.5rem}h3{font-size:1.25rem}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 1rem}.card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.25rem;box-shadow:var(--shadow)}.card:hover{box-shadow:var(--shadow-md)}.grid{display:grid;gap:1rem}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.badge{display:inline-block;padding:.125rem .5rem;border-radius:9999px;font-size:.75rem;font-weight:600}.badge-critical{background:#fef2f2;color:var(--color-critical);border:1px solid #fecaca}.badge-chapter{background:#eff6ff;color:var(--color-primary);border:1px solid #bfdbfe}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;border:none;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s,transform .1s}.btn:active{transform:scale(.98)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark);text-decoration:none}.btn-outline{background:transparent;border:2px solid var(--color-primary);color:var(--color-primary)}.btn-outline:hover{background:var(--color-primary);color:#fff;text-decoration:none}.btn-lg{padding:.875rem 1.75rem;font-size:1.125rem}.section{padding:2rem 0}.section-title{margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:2px solid var(--color-primary)}.answer-list{list-style:none;display:flex;flex-direction:column;gap:.5rem}.answer-item{padding:.75rem 1rem;border:2px solid var(--color-border);border-radius:var(--radius);cursor:pointer;transition:border-color .2s,background .2s}.answer-item:hover{border-color:var(--color-primary-light);background:#eff6ff}.answer-item.correct{border-color:var(--color-correct);background:#f0fdf4}.answer-item.wrong{border-color:var(--color-wrong);background:#fef2f2}.answer-item.selected{border-color:var(--color-primary);background:#eff6ff}.question-image{max-width:400px;margin:1rem auto;border-radius:var(--radius);border:1px solid var(--color-border)}.pagination{display:flex;justify-content:center;gap:.5rem;padding:1.5rem 0;flex-wrap:wrap}.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:2.25rem;height:2.25rem;padding:0 .5rem;border:1px solid var(--color-border);border-radius:var(--radius);font-size:.875rem}.pagination .active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.ad-slot{text-align:center;margin:1.5rem 0;min-height:90px;background:var(--color-bg-secondary);border:1px dashed var(--color-border);display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--color-text-secondary)}@media (max-width: 768px){h1{font-size:1.5rem}h2{font-size:1.25rem}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.container{padding:0 .75rem}}@media (min-width: 769px) and (max-width: 1024px){.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}}@media print{.ad-slot,header,footer,.pagination{display:none}}.header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid 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.2s;white-space:nowrap}.nav-link[data-astro-cid-3ef6ksr2]:hover,.nav-link[data-astro-cid-3ef6ksr2].active{color:var(--color-primary);background:#eff6ff;text-decoration:none}.nav-cta[data-astro-cid-3ef6ksr2]{display:none}.menu-toggle[data-astro-cid-3ef6ksr2]{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.5rem}.menu-toggle[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]{display:block;width:24px;height:2px;background:var(--color-text);transition:transform .2s}.menu-toggle[data-astro-cid-3ef6ksr2].open span[data-astro-cid-3ef6ksr2]:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.menu-toggle[data-astro-cid-3ef6ksr2].open span[data-astro-cid-3ef6ksr2]:nth-child(2){opacity:0}.menu-toggle[data-astro-cid-3ef6ksr2].open span[data-astro-cid-3ef6ksr2]:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}@media (max-width: 768px){.menu-toggle[data-astro-cid-3ef6ksr2]{display:flex}.nav[data-astro-cid-3ef6ksr2]{display:none;position:absolute;top:var(--header-height);left:0;right:0;background:#fff;flex-direction:column;padding:1rem;border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-md)}.nav[data-astro-cid-3ef6ksr2].open{display:flex}.nav-link[data-astro-cid-3ef6ksr2]{width:100%;padding:.75rem 1rem;font-size:1rem}.nav-cta[data-astro-cid-3ef6ksr2]{display:block;width:100%;text-align:center;margin-top:.5rem;padding:.75rem;background:var(--color-primary);color:#fff;border-radius:var(--radius);font-weight:600;text-decoration:none}}.footer[data-astro-cid-sz7xmlte]{background:#0f172a;color:#94a3b8;padding:3rem 0 1.5rem;margin-top:auto}.footer-grid[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem}.footer-brand[data-astro-cid-sz7xmlte] .logo[data-astro-cid-sz7xmlte]{display:flex;align-items:center;gap:.5rem;font-weight:700;font-size:1.25rem;color:#fff;margin-bottom:1rem}.footer-brand[data-astro-cid-sz7xmlte] .logo-icon[data-astro-cid-sz7xmlte]{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--color-primary);color:#fff;border-radius:8px;font-size:.875rem;font-weight:800}.footer-desc[data-astro-cid-sz7xmlte]{font-size:.875rem;line-height:1.6;margin-bottom:1rem}.app-badge[data-astro-cid-sz7xmlte]{display:inline-block;padding:.5rem 1rem;background:var(--color-primary);color:#fff;border-radius:var(--radius);font-size:.875rem;font-weight:600;text-decoration:none}.footer-section[data-astro-cid-sz7xmlte] h3[data-astro-cid-sz7xmlte]{color:#fff;font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:1rem}.footer-section[data-astro-cid-sz7xmlte] ul[data-astro-cid-sz7xmlte]{list-style:none}.footer-section[data-astro-cid-sz7xmlte] li[data-astro-cid-sz7xmlte]{margin-bottom:.5rem}.footer-section[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:#94a3b8;font-size:.875rem;text-decoration:none}.footer-section[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:#fff}.footer-bottom[data-astro-cid-sz7xmlte]{display:flex;justify-content:space-between;align-items:center;padding-top:1.5rem;margin-top:2rem;border-top:1px solid #1e293b;font-size:.8125rem}.footer-links[data-astro-cid-sz7xmlte]{display:flex;gap:1.5rem}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:#94a3b8;text-decoration:none}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:#fff}@media (max-width: 768px){.footer-grid[data-astro-cid-sz7xmlte]{grid-template-columns:1fr}.footer-bottom[data-astro-cid-sz7xmlte]{flex-direction:column;gap:.75rem;text-align:center}}