:root{--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-card: #ffffff;--border-color: rgba(0, 0, 0, .08);--border-color-hover: rgba(5, 150, 105, .35);--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--accent: #059669;--accent-rgb: 5, 150, 105;--accent-hover: #047857;--accent-glow: rgba(5, 150, 105, .15);--font-heading: "Outfit", sans-serif;--font-body: "Inter", sans-serif;--font-mono: "Fira Code", monospace;--container-max-width: 1200px;--transition-smooth: all .4s cubic-bezier(.16, 1, .3, 1);--shadow-card: 0 10px 30px rgba(0, 0, 0, .05);--shadow-glow: 0 0 30px rgba(5, 150, 105, .12)}*{margin:0;padding:0;box-sizing:border-box}html{min-height:100%;background-color:#0b0f17;scroll-behavior:smooth;font-size:16px;color:var(--text-primary);font-family:var(--font-body);overflow-x:hidden;max-width:100vw}body{min-height:100vh;display:flex;flex-direction:column;background-color:var(--bg-primary);line-height:1.6;-webkit-font-smoothing:antialiased;position:relative;overflow-x:hidden;max-width:100vw}main,.books-page-container,.articles-page-container,.contact-page-container,.catalog-page,.contact-page{flex:1 0 auto;width:100%;display:flex;flex-direction:column}.ambient-glow{position:absolute;width:60vw;height:60vw;max-width:800px;border-radius:50%;filter:blur(150px);pointer-events:none;z-index:-1;opacity:.12}.glow-1{top:-10%;right:-10%;background:radial-gradient(circle,var(--accent) 0%,transparent 70%)}.glow-2{top:50%;left:-20%;background:radial-gradient(circle,#00f0ff 0%,transparent 70%)}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:#1f2329;border-radius:5px}::-webkit-scrollbar-thumb:hover{background:#2e353f}.container{width:100%;max-width:var(--container-max-width);margin-left:auto;margin-right:auto;padding-left:2rem;padding-right:2rem}section{padding-top:3.25rem;padding-bottom:3.25rem;position:relative}.text-center{text-align:center}h1,h2,h3,h4{font-family:var(--font-heading);font-weight:700;line-height:1.15;letter-spacing:-.02em}.section-tag{font-family:var(--font-mono);font-size:.8rem;font-weight:500;letter-spacing:.15em;color:var(--accent);text-transform:uppercase;margin-bottom:.5rem;display:block}.section-title{font-size:2.35rem;font-weight:800;margin-bottom:.75rem;letter-spacing:-.03em}.section-subtitle{font-size:1.08rem;color:var(--text-secondary);max-width:720px;margin-bottom:1.5rem;line-height:1.5}.section-header-centered{display:flex;flex-direction:column;align-items:center;margin-bottom:1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-heading);font-weight:800;text-decoration:none;padding:1.25rem 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auto}.badge-item{display:flex;align-items:center;justify-content:flex-start;gap:.85rem;color:var(--text-secondary);font-size:.95rem;text-align:left}.badge-icon{width:20px;height:20px;color:var(--accent);flex-shrink:0}.main-footer{padding:4rem 0;border-top:1px solid var(--border-color);background-color:var(--bg-primary);margin-top:auto}.footer-container{display:flex;flex-direction:column;align-items:center;text-align:center;gap:1.5rem}.copyright{font-size:.9rem;color:var(--text-secondary)}.disclaimer{font-size:.75rem;color:var(--text-muted);max-width:700px;line-height:1.5}.whatsapp-floating{position:fixed;bottom:2rem;right:2rem;z-index:999;display:flex;align-items:center;gap:1rem}.whatsapp-tooltip{background-color:#fff;border:1.5px solid rgba(15,23,42,.12);color:#0f172a;padding:.85rem 1.25rem;border-radius:20px;font-size:.88rem;font-weight:600;line-height:1.4;box-shadow:0 10px 30px #0f172a1f;max-width:260px;pointer-events:none;opacity:0;transform:translate(15px);transition:var(--transition-smooth)}.whatsapp-floating:hover .whatsapp-tooltip{opacity:1;transform:translate(0)}.whatsapp-circle{width:60px;height:60px;background-color:#25d366;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 20px #25d3664d;transition:var(--transition-smooth);color:#fff}.whatsapp-circle:hover{transform:scale(1.1) rotate(5deg);background-color:#20ba5a;box-shadow:0 8px 25px #25d36680}.whatsapp-icon{width:32px;height:32px}@keyframes pulseGlow{0%{box-shadow:0 0 #25d36666}70%{box-shadow:0 0 0 15px #25d36600}to{box-shadow:0 0 #25d36600}}.whatsapp-circle{animation:pulseGlow 2.5s infinite}.blog-section{border-top:1px solid var(--border-color);background-color:var(--bg-primary)}.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.blog-card{background-color:var(--bg-secondary);border:1px solid 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1fr;gap:2.5rem;align-items:center;position:relative;overflow:hidden;transition:var(--transition-smooth);box-shadow:var(--shadow-card)}.book-card:hover{transform:translateY(-5px);border-color:var(--border-color-hover);box-shadow:0 15px 35px #0009,0 0 25px #05966908}.book-mockup{perspective:1000px;width:140px;height:200px}.book-cover{width:140px;height:200px;background:linear-gradient(135deg,#181d24,#0d1117);border-left:6px solid var(--accent);border-radius:2px 8px 8px 2px;padding:1.5rem 1rem;display:flex;flex-direction:column;justify-content:space-between;box-shadow:10px 10px 20px #0009;transform:rotateY(-10deg);transition:var(--transition-smooth)}.book-cover-blue{border-left:6px solid #00f0ff}.book-card:hover .book-cover{transform:rotateY(-5deg) scale(1.03);box-shadow:12px 12px 24px #000000b3}.book-cover-tag{font-family:var(--font-mono);font-size:.65rem;color:var(--accent);letter-spacing:.1em}.book-cover-blue .book-cover-tag{color:#00f0ff}.book-cover-title{font-size:.95rem;font-weight:700;line-height:1.3;color:#fff}.book-cover-author{font-size:.65rem;color:var(--text-secondary)}.book-info{display:flex;flex-direction:column;justify-content:center}.book-info .book-title{font-size:1.4rem;font-weight:700;margin-bottom:1rem;line-height:1.3}.book-desc{font-size:.95rem;color:var(--text-secondary);line-height:1.6;margin-bottom:1.5rem}.btn-small{align-self:flex-start;padding:.8rem 1.5rem;font-size:.9rem}.preloader{position:fixed;top:0;right:0;bottom:0;left:0;background-color:var(--bg-primary);z-index:9999;display:flex;align-items:center;justify-content:center;transition:opacity .6s cubic-bezier(.16,1,.3,1),visibility .6s;visibility:visible;opacity:1}.preloader.fade-out{opacity:0;visibility:hidden;pointer-events:none}.preloader-content{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.preloader-biceps-mono{display:inline-block;font-size:1.05rem;line-height:1;margin-left:.35rem;vertical-align:middle;filter:grayscale(100%) brightness(.25) opacity(.85);animation:preloaderFlex 1.5s infinite ease-in-out;transform-origin:center;-webkit-user-select:none;user-select:none}.preloader-logo{height:60px;width:auto;border-radius:10px;animation:preloaderPulse 2s infinite ease-in-out}@keyframes preloaderFlex{0%,to{transform:scale(1) rotate(0)}50%{transform:scale(1.25) 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solid var(--border-color);border-radius:10px;padding:.75rem 1rem;cursor:pointer;outline:none;transition:var(--transition-smooth)}.article-sort-select:focus{border-color:var(--accent)}.article-card-meta{display:flex;align-items:center;gap:.75rem}.article-views-badge{font-family:var(--font-mono);font-size:.75rem;font-weight:700;color:#d97706;background-color:#d977061a;padding:.2rem .6rem;border-radius:4px}.sort-current-indicator{font-family:var(--font-mono);font-size:.82rem;color:var(--text-muted)}@media (max-width: 900px){.recent-articles-grid{grid-template-columns:1fr;gap:1rem}.controls-top-row{flex-direction:column;align-items:stretch}}