:root{--orange:#ee812c;--navy:#0f172a;--muted:#64748b;--border:#e5e7eb}
*{box-sizing:border-box}body{margin:0;background:#f8fafc;color:var(--navy);font-family:Inter,sans-serif;font-size:16px}.main-navbar{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.navbar-container{max-width:1200px;height:76px;margin:auto;padding:0 22px;display:flex;align-items:center}.navbar-brand{font-size:25px;font-weight:800}.navbar-brand span{color:var(--orange)}.desktop-navigation{margin-left:auto;display:flex;align-items:center;gap:5px}.desktop-link{padding:11px 13px;border-radius:10px;color:#475569;font-weight:700}.desktop-link.active,.desktop-link:hover{color:var(--orange);background:#fff7ed}.login-button{border:0;background:var(--orange);color:#fff;border-radius:10px;padding:11px 16px;font-weight:800;display:inline-flex;align-items:center;gap:8px}.mobile-menu-button{display:none;margin-left:auto;border:0;background:transparent;font-size:30px}
.mobile-menu-overlay{position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:1090;opacity:0;visibility:hidden;transition:.25s}.mobile-menu-overlay.open{opacity:1;visibility:visible}.mobile-side-menu{position:fixed;top:0;right:-380px;width:min(80vw,350px);height:100vh;background:#fff;z-index:1100;padding:24px;transition:right .28s ease;box-shadow:-20px 0 50px rgba(15,23,42,.15)}.mobile-side-menu.open{right:0}.mobile-side-header{display:flex;justify-content:space-between;align-items:center;font-size:21px;margin-bottom:25px}.mobile-menu-close{border:0;width:42px;height:42px;border-radius:10px;background:#f1f5f9}.mobile-navigation{display:grid;gap:7px}.mobile-nav-link{display:flex;align-items:center;gap:13px;padding:15px;border-radius:12px;font-weight:700}.mobile-nav-link.active,.mobile-nav-link:hover{color:var(--orange);background:#fff7ed}.mobile-nav-link .mobile-nav-arrow{margin-left:auto}.mobile-login-area{margin-top:25px}
.catalog-header{background:linear-gradient(135deg,#fff,#fff7ed);padding:65px 0 45px;border-bottom:1px solid #f1f5f9}.breadcrumb-custom{display:flex;gap:9px;align-items:center;color:#94a3b8;font-size:13px;margin-bottom:30px}.breadcrumb-custom a:hover{color:var(--orange)}.section-label{font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--orange)}.catalog-title{font-size:clamp(35px,5vw,55px);font-weight:800;line-height:1.05;margin:12px 0}.catalog-title span{color:var(--orange)}.catalog-description{max-width:680px;color:var(--muted);font-size:17px;line-height:1.8}.header-features{display:flex;gap:20px;flex-wrap:wrap;margin-top:25px}.header-feature{display:flex;gap:8px;align-items:center;font-size:13px;font-weight:700;color:#475569}.header-feature i{color:var(--orange)}
.catalog-tools{padding:25px 0}.filter-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:15px}.book-grid{padding:20px 0 70px}.book-card{display:block;background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;height:100%;transition:.25s}.book-card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(15,23,42,.1);border-color:#fed7aa}.book-cover{height:300px;background:#e2e8f0;position:relative;overflow:hidden}.book-cover img{width:100%;height:100%;object-fit:cover}.book-content{padding:18px}.book-category{font-size:12px;color:var(--orange);font-weight:800}.book-title{font-size:19px;line-height:1.35;font-weight:800;margin:7px 0}.book-author{color:var(--muted);font-size:14px}.book-meta{display:flex;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid #f1f5f9;color:#64748b;font-size:12px}.book-meta i{color:var(--orange)}.empty-state{text-align:center;padding:70px 20px;background:#fff;border:1px solid var(--border);border-radius:18px}.empty-state i{font-size:45px;color:#cbd5e1}.pagination .page-link{color:#475569;border-color:var(--border)}.pagination .active .page-link{background:var(--orange);border-color:var(--orange);color:#fff}
.catalog-donation{padding:0 0 70px}.catalog-donation-card{display:flex;align-items:center;gap:20px;background:linear-gradient(135deg,#fff7ed,#fff);border:1px solid #fed7aa;border-radius:20px;padding:25px}.don-icon{width:56px;height:56px;flex:0 0 56px;border-radius:15px;background:#ffedd5;color:#ea580c;display:grid;place-items:center;font-size:23px}.catalog-donation-card span{font-size:11px;font-weight:800;color:#c2410c;letter-spacing:.06em}.catalog-donation-card h2{font-size:21px;font-weight:800;margin:5px 0}.catalog-donation-card p{color:var(--muted);font-size:14px;margin:0;line-height:1.6}.don-actions{display:grid;gap:8px;min-width:220px}.don-actions a{padding:11px 13px;border-radius:10px;text-align:center;background:var(--orange);color:#fff;font-weight:800;font-size:13px}.don-actions a+ a{background:#fff;color:var(--navy);border:1px solid #cbd5e1}
.main-footer{background:#0f172a;color:#94a3b8;padding:40px 0}.footer-brand{font-size:23px;font-weight:800;color:#fff}.footer-brand span{color:var(--orange)}.copyright{margin:0}
.login-modal{border:0;border-radius:20px}.login-modal .modal-body{padding:28px}.login-icon{width:60px;height:60px;margin:auto;display:grid;place-items:center;border-radius:50%;background:#fff7ed;color:var(--orange);font-size:28px}.login-modal h2{font-size:24px;font-weight:800;margin:15px 0 7px}.login-description{color:var(--muted)}.social-login{display:flex;align-items:center;gap:12px;padding:14px;margin-top:10px;border:1px solid var(--border);border-radius:11px;font-weight:700}.social-icon{width:24px}.arrow{margin-left:auto;color:#94a3b8}.login-footer{text-align:center;margin-top:18px;color:#64748b;font-size:12px}
@media(max-width:900px){.desktop-navigation{display:none}.mobile-menu-button{display:block}.catalog-donation-card{align-items:flex-start;flex-direction:column}.don-actions{width:100%}}
@media(max-width:576px){.catalog-header{padding:45px 0 30px}.catalog-title{font-size:37px}.book-cover{height:calc(100vw - 45px);max-height:460px}.navbar-container{height:68px}.mobile-side-menu{width:82vw}}