:root{--card-bg: #ffffff;--card-shadow: 0 10px 25px -5px rgba(0, 0, 0, .05), 0 8px 10px -6px rgba(0, 0, 0, .05);--accent-color: #6366f1;--text-main: #1e293b;--text-muted: #64748b;--item-hover-bg: #f8fafc}.livre-hero{background:linear-gradient(135deg,#041a2e,#00568a 60%,#007db8);color:#fff;padding:2.5rem 0 2rem;border-bottom:3px solid #00AEEF}.livre-hero-inner{display:flex;align-items:flex-start;gap:1.5rem}.livre-hero-cover{flex-shrink:0;width:100px;height:100px;border-radius:12px;overflow:hidden;background:#ffffff1a;border:2px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:2.5rem;color:#fff6}.livre-hero-cover img{width:100%;height:100%;object-fit:cover}.livre-hero-cats{display:flex;flex-wrap:wrap;gap:.35rem;margin-bottom:.6rem}.livre-hero-cat{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:#fff;background:#ffffff26;border:1px solid rgba(255,255,255,.25);padding:.15rem .6rem;border-radius:20px}.livre-hero-title{font-size:1.75rem;font-weight:800;margin:0 0 .5rem;letter-spacing:-.3px}.livre-hero-desc{font-size:.92rem;color:#ffffffbf;margin:0 0 .9rem}.livre-hero-meta{display:flex;flex-wrap:wrap;gap:.5rem 1.2rem;font-size:.8rem;color:#fff9}.livre-hero-meta i{color:#00aeef;margin-right:.25rem}.livre-start-btn{display:flex;align-items:center;justify-content:center;gap:.55rem;width:100%;padding:.85rem 1.2rem;margin-bottom:1.5rem;background:linear-gradient(90deg,#00568a,#007db8);color:#fff;font-size:1rem;font-weight:700;border-radius:10px;text-decoration:none;transition:background .2s,transform .15s;box-shadow:0 4px 14px #1a3a6b40}.livre-start-btn:hover{background:linear-gradient(90deg,#00aeef,#0098d4);color:#fff;transform:translateY(-1px)}.livre-start-btn i{font-size:1.2rem}.livre-toc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0}.livre-toc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;padding:1rem}.livre-toc-section{background:var(--card-bg);border-radius:16px;box-shadow:var(--card-shadow);border:1px solid #f1f5f9;overflow:hidden;transition:transform .3s ease,box-shadow .3s ease}.livre-toc-section:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px #0000001a}.livre-toc-section-header{display:flex;align-items:center;gap:.8rem;padding:1.25rem;background:linear-gradient(to right,#f8fafc,#fff);border-bottom:1px solid #f1f5f9}.livre-toc-section-header i{color:var(--accent-color);background:#6366f11a;padding:8px;border-radius:10px;font-size:.9rem}.livre-toc-section-title{font-size:.85rem;font-weight:700;color:var(--text-main);letter-spacing:-.01em}.livre-toc-items{padding:.75rem}.livre-toc-item{display:flex;align-items:center;gap:1rem;padding:.7rem .75rem;text-decoration:none;border-radius:10px;transition:background .2s ease;margin-bottom:2px}.livre-toc-item:hover{background:var(--item-hover-bg)}.livre-toc-num{font-size:.75rem;font-weight:700;color:var(--text-muted);opacity:.5;min-width:20px}.livre-toc-text{font-size:.9rem;color:var(--text-main);font-weight:400}.livre-toc-item:hover .livre-toc-text{color:var(--accent-color)}@media(max-width:992px){.livre-toc-grid{grid-template-columns:1fr;gap:1rem}}