@import url(https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;800&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,400&family=DM+Sans:wght@400;500;600;700&display=swap);:root{--azul:#0d3554;--azul-mid:#1a5276;--azul-claro:#2e86c1;--azul-tint:#eaf4fb;--azul-soft:#d6eaf8;--verde:#1e7e4e;--verde-tint:#e8f8f0;--rojo:#b03a2e;--rojo-tint:#fdedec;--naranja:#d4681a;--naranja-tint:#fdf0e8;--ocre:#b7860b;--ocre-tint:#fefce8;--papel:#fdfbf6;--linea:#c8d8e4;--texto:#1a2a35;--texto-suave:#4a6278;--borde:#dde6ee;--radio:14px;--radio-lg:22px;--sombra:0 2px 16px rgba(13,53,84,.08);--sombra-hover:0 8px 32px rgba(13,53,84,.15)}.drcastro-columna-guia,.drcastro-columna-guia *,.drcastro-columna-guia *::before,.drcastro-columna-guia *::after{box-sizing:border-box}.drcastro-columna-guia{font-family:'Source Serif 4',Georgia,serif;color:var(--texto);background:#eef3f7;line-height:1.8;font-size:17px;margin:0 0 2rem}.hdr{background:linear-gradient(155deg,var(--azul) 0%,var(--azul-mid) 55%,#1b6fa8 100%);color:#fff;padding:56px 24px 48px;text-align:center;position:relative;overflow:hidden}.hdr::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 40% at 20% 30%,rgb(255 255 255 / .06) 0%,transparent 70%),radial-gradient(ellipse 40% 60% at 80% 70%,rgb(255 255 255 / .04) 0%,transparent 70%)}.hdr-badge{display:inline-flex;align-items:center;gap:8px;background:rgb(255 255 255 / .12);border:1px solid rgb(255 255 255 / .22);padding:5px 18px;border-radius:30px;font-family:'DM Sans',sans-serif;font-size:.72rem;letter-spacing:2.5px;text-transform:uppercase;margin-bottom:20px;position:relative}.hdr h1{font-family:'Playfair Display',serif;font-size:clamp(1.8rem, 5vw, 3rem);font-weight:800;line-height:1.2;margin-bottom:14px;position:relative;letter-spacing:-.5px;color:#fff}.hdr p{font-family:'DM Sans',sans-serif;font-size:.97rem;opacity:.82;max-width:560px;margin:0 auto;position:relative}.hdr-deco{position:absolute;top:-40px;right:-40px;width:300px;height:300px;border:1px solid rgb(255 255 255 / .08);border-radius:50%;pointer-events:none}.hdr-deco::after{content:'';position:absolute;inset:30px;border:1px solid rgb(255 255 255 / .05);border-radius:50%}.toc-wrap{max-width:920px;margin:36px auto 0;padding:0 20px}.toc{background:var(--papel);border-radius:var(--radio-lg);padding:28px 32px;box-shadow:var(--sombra);border:1px solid var(--borde);position:relative}.toc::before{content:'';position:absolute;left:0;top:20px;bottom:20px;width:4px;background:linear-gradient(to bottom,var(--azul-claro),var(--verde));border-radius:0 4px 4px 0}.toc h2{font-family:'DM Sans',sans-serif;font-size:.82rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--texto-suave);margin-bottom:16px}.toc ol{padding-left:22px}.toc li{margin-bottom:7px}.toc a{font-family:'DM Sans',sans-serif;font-size:.92rem;color:var(--azul-claro);text-decoration:none;transition:color .2s}.toc a:hover{color:var(--azul);text-decoration:underline}.qcard{background:var(--papel);border-radius:var(--radio-lg);box-shadow:var(--sombra);border:1px solid var(--borde);margin-bottom:56px;overflow:hidden;transition:box-shadow .3s,transform .3s}.qcard:hover{box-shadow:var(--sombra-hover);transform:translateY(-2px)}.qcard-head{background:linear-gradient(135deg,var(--azul) 0%,var(--azul-mid) 100%);padding:30px 36px;color:#fff;position:relative;overflow:hidden}.qcard-head::after{content:attr(data-num);position:absolute;right:-10px;bottom:-20px;font-family:'Playfair Display',serif;font-size:8rem;font-weight:800;opacity:.07;line-height:1;pointer-events:none}.q-topic{font-family:'DM Sans',sans-serif;font-size:.7rem;font-weight:600;letter-spacing:2.5px;text-transform:uppercase;opacity:.65;margin-bottom:9px}.qcard-head h2{font-family:'Playfair Display',serif;font-size:clamp(1.1rem, 2.8vw, 1.45rem);font-weight:700;line-height:1.35;position:relative;color:#fff}.qcard-body{padding:36px}.qcard-body h3{font-family:'Playfair Display',serif;font-size:1.18rem;color:var(--azul);margin:30px 0 12px;padding-bottom:8px;border-bottom:2px solid var(--azul-soft)}.qcard-body p{margin-bottom:16px;font-size:.97rem;line-height:1.78}.qcard-body ul,.qcard-body ol{margin:12px 0 20px 24px;font-size:.95rem}.qcard-body li{margin-bottom:8px;line-height:1.7}.qcard-body strong{color:var(--azul-mid)}.alert{border-radius:var(--radio);padding:18px 22px;margin:22px 0;border-left:5px solid;font-size:.94rem;font-family:'DM Sans',sans-serif}.alert strong{display:block;font-weight:700;margin-bottom:6px}.alert-blue{background:var(--azul-tint);border-color:var(--azul-claro);color:#0d3554}.alert-green{background:var(--verde-tint);border-color:var(--verde);color:#1a4a32}.alert-red{background:var(--rojo-tint);border-color:var(--rojo);color:#5c1e1a}.alert-orange{background:var(--naranja-tint);border-color:var(--naranja);color:#5c2e00}.alert-yellow{background:var(--ocre-tint);border-color:var(--ocre);color:#4a3200}.illus-wrap{margin:28px 0}.illus-label{font-family:'DM Sans',sans-serif;font-size:.7rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--texto-suave);margin-bottom:8px;display:flex;align-items:center;gap:6px}.notebook{background:repeating-linear-gradient(transparent,transparent 27px,#c8d8e8 27px,#c8d8e8 28px),linear-gradient(#fdfaf0,#fdfaf0);border:1px solid #c0a96d;border-radius:6px;padding:20px 22px 20px 54px;position:relative;box-shadow:2px 3px 10px rgb(0 0 0 / .1),inset 0 0 0 1px rgb(255 255 255 / .5);overflow:hidden}.notebook::before{content:'';position:absolute;left:40px;top:0;bottom:0;width:2px;background:#e88;opacity:.7}.notebook::after{content:'';position:absolute;left:0;top:0;bottom:0;width:36px;background:linear-gradient(to right,#f0e8d8,#fdf6ee);border-right:1px solid #d4b896}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:14px;margin:24px 0}.stat-card{background:var(--azul-tint);border:1px solid var(--azul-soft);border-radius:var(--radio);padding:18px 16px;text-align:center}.stat-num{font-family:'Playfair Display',serif;font-size:2rem;font-weight:800;color:var(--azul);display:block;line-height:1.1}.stat-label{font-family:'DM Sans',sans-serif;font-size:.76rem;color:var(--texto-suave);margin-top:5px;line-height:1.35}.bar-chart{margin:22px 0}.bar-row{display:flex;align-items:center;gap:12px;margin-bottom:10px;font-family:'DM Sans',sans-serif;font-size:.83rem}.bar-label{width:175px;text-align:right;color:var(--texto-suave);flex-shrink:0}.bar-track{flex:1;background:var(--borde);border-radius:20px;height:22px;overflow:hidden}.bar-fill{height:100%;border-radius:20px;display:flex;align-items:center;padding-left:10px;color:#fff;font-size:.76rem;font-weight:600;animation:bar-in 1.3s ease forwards}@keyframes bar-in{from{width:0!important}}.compare-table{width:100%;border-collapse:collapse;margin:22px 0;font-family:'DM Sans',sans-serif;font-size:.88rem}.compare-table th{background:var(--azul);color:#fff;padding:12px 16px;text-align:left;font-weight:600}.compare-table td{padding:10px 16px;border-bottom:1px solid var(--borde)}.compare-table tr:nth-child(even) td{background:var(--azul-tint)}.compare-table tr:hover td{background:var(--azul-soft)}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0}.col-card{border-radius:var(--radio);padding:18px}.col-card.green{background:var(--verde-tint);border:1px solid #a8d5bc}.col-card.red{background:var(--rojo-tint);border:1px solid #f5c6cb}.col-card h4{font-family:'DM Sans',sans-serif;font-size:.88rem;font-weight:700;margin-bottom:10px}.col-card ul{padding-left:18px;font-size:.86rem}.col-card li{margin-bottom:6px}.col-card p{font-size:.82rem;margin-top:8px;font-family:'DM Sans',sans-serif}.steps{margin:20px 0}.step-row{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start}.step-num{background:var(--azul);color:#fff;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-family:'DM Sans',sans-serif;font-weight:700;font-size:.9rem;flex-shrink:0;margin-top:2px}.step-body strong{display:block;font-family:'DM Sans',sans-serif;color:var(--azul);margin-bottom:4px;font-size:.95rem}.step-body p{font-size:.91rem;margin:0}.donut-wrap{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin:20px 0}.donut-label{font-family:'DM Sans',sans-serif;font-size:.82rem;color:var(--texto-suave);max-width:140px;margin-top:6px}.refs{background:#f4f7fa;border-radius:var(--radio);padding:22px 26px;margin-top:30px;border:1px solid var(--borde)}.refs h4{font-family:'DM Sans',sans-serif;font-size:.72rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--texto-suave);margin-bottom:14px}.refs ol{padding-left:20px}.refs li{font-family:'DM Sans',sans-serif;font-size:.8rem;color:var(--texto-suave);margin-bottom:8px;line-height:1.55}.urgency-list{list-style:none;padding:0;margin:18px 0}.urgency-item{display:flex;gap:12px;padding:14px 17px;border-radius:var(--radio);margin-bottom:10px;font-family:'DM Sans',sans-serif;font-size:.92rem}.urgency-item.red{background:var(--rojo-tint);border:1px solid #f5c6cb}.urgency-item.orange{background:var(--naranja-tint);border:1px solid #fcd19b}.urgency-item.yellow{background:var(--ocre-tint);border:1px solid #ffe082}.urgency-icon{font-size:1.2rem;flex-shrink:0;margin-top:2px}.urgency-item strong{display:block;margin-bottom:3px}.ftr{background:var(--azul);color:rgb(255 255 255 / .75);text-align:center;padding:34px 20px;font-family:'DM Sans',sans-serif;font-size:.84rem;line-height:1.7}.ftr strong{color:#fff;font-size:1rem}.ftr small{display:block;margin-top:12px;opacity:.55;font-size:.74rem}@media (max-width:640px){.qcard-body{padding:22px}.qcard-head{padding:22px}.bar-label{width:105px;font-size:.77rem}.two-col{grid-template-columns:1fr}.notebook{padding-left:40px}}.question-card,.question-header,.question-body,.question-number{display:revert}.stat-number{font-family:'Playfair Display',serif;font-size:2rem;font-weight:800;color:var(--azul);display:block;line-height:1.1}.references{background:#f4f7fa;border-radius:var(--radio);padding:22px 26px;margin-top:30px;border:1px solid var(--borde)}.references h4{font-family:'DM Sans',sans-serif;font-size:.72rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--texto-suave);margin-bottom:14px}.references ol{padding-left:20px}.references li{font-family:'DM Sans',sans-serif;font-size:.8rem;color:var(--texto-suave);margin-bottom:8px;line-height:1.55}.illustration-wrapper{margin:28px 0}.illustration-title{font-family:'DM Sans',sans-serif;font-size:.7rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--texto-suave);margin-bottom:8px}.spine-svg{width:100%;max-width:320px;display:block;margin:0 auto}.price-card{background:var(--papel);border:2px solid var(--borde);border-radius:var(--radio-lg);padding:22px 26px;margin:20px 0}.price-card.highlight{border-color:var(--azul-claro);background:var(--azul-tint)}.price-card h4{font-family:'DM Sans',sans-serif;font-size:.9rem;font-weight:700;color:var(--azul);margin-bottom:12px}.price-range{font-family:'Playfair Display',serif;font-size:1.6rem;font-weight:800;color:var(--azul);line-height:1}.price-sub{font-family:'DM Sans',sans-serif;font-size:.78rem;color:var(--texto-suave);margin-top:4px}.checklist{margin:18px 0}.check-item{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid var(--borde);font-family:'DM Sans',sans-serif;font-size:.92rem;align-items:flex-start}.check-item:last-child{border-bottom:none}.check-icon{flex-shrink:0;margin-top:2px;font-size:1rem}.col-card.blue{background:var(--azul-tint);border:1px solid var(--azul-soft)}.guia-link-wrap{max-width:920px;margin:0 auto 24px;padding:0 20px;text-align:center}.guia-link{font-family:'DM Sans',sans-serif;font-size:.9rem;color:var(--azul-claro);text-decoration:none;display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border:1px solid var(--azul-soft);border-radius:30px;background:var(--papel);transition:background .2s,color .2s}.guia-link:hover{background:var(--azul-tint);color:var(--azul)}