:root{--kb:#285ee3;--kbg:#f5f8ff;--ktext:#162744}body{background:var(--kbg);color:var(--ktext);font-family:system-ui,-apple-system,"Segoe UI",sans-serif}.k3d-nav{background:#fff;border-bottom:1px solid #e4eaf5}.k3d-hero{color:#fff;background:radial-gradient(circle at 78% 35%,#377cf5 0,transparent 35%),linear-gradient(120deg,#112f66,#275be0)}.k3d-hero span:not(.k3d-eyebrow){color:#b5dcff}.k3d-hero .lead{max-width:680px;color:#e4ecff}.k3d-eyebrow,.k3d-tag{font-size:.75rem;letter-spacing:.12em;font-weight:800}.k3d-tag{color:#2761d7}.k3d-hero .k3d-eyebrow{color:#e4f0ff}.k3d-section-title{display:flex;gap:1rem;align-items:end;justify-content:space-between;flex-wrap:wrap;margin-bottom:1rem}.k3d-section-title>div:last-child{max-width:450px}.k3d-card{background:#fff;border:1px solid #e0e9f8;border-radius:20px;overflow:hidden;box-shadow:0 10px 35px #1b448509;height:100%}.k3d-card .content{padding:1.4rem}.k3d-card .cover{width:100%;height:210px;object-fit:cover;background:#e2ecfb}.k3d-placeholder{height:210px;background:linear-gradient(125deg,#e8f2ff,#c7daf7);display:grid;place-items:center;color:#4175bd;font-size:4rem}.k3d-pill{font-size:.7rem;font-weight:700;background:#eff4ff;color:#2359b2;padding:.35rem .7rem;border-radius:999px}.k3d-form,.k3d-advice{background:#fff;border:1px solid #dce7f9;border-radius:22px;padding:clamp(1.2rem,3vw,2rem);box-shadow:0 15px 35px #17478e0d}.k3d-advice i{display:block;font-size:2rem;color:#2a68d6;margin-bottom:.5rem}.k3d-advice strong{display:block}.k3d-advice p{color:#66748b;font-size:.92rem}.k3d-contribute{padding:clamp(1.4rem,4vw,3rem);border:1px solid #d7e3fb;border-radius:26px;background:linear-gradient(120deg,#e9f3ff,#f8fbff)}.k3d-footer{background:#102851;color:#c9daf4;padding:1.5rem 0;margin-top:3rem}.k3d-footer a{color:#fff;text-decoration:none}@media(max-width:575px){.k3d-section-title>div:last-child{width:100%}.k3d-hero h1{font-size:2.3rem}}

.k3d-calc-banner{background:linear-gradient(120deg,#e8f1ff,#fff);border:1px solid #dce7fa;padding:clamp(1.4rem,3vw,2rem);border-radius:24px;display:flex;align-items:center;gap:1.4rem;justify-content:space-between}.k3d-calc-banner h2{font-size:clamp(1.35rem,2.3vw,1.9rem);font-weight:800;margin:.6rem 0}.k3d-calc-banner p{color:#566782;max-width:720px;margin:0}.k3d-calc-banner .btn{flex-shrink:0}.k3d-educational .k3d-tip{background:#fff;border:1px solid #e0e9f8;border-radius:19px;padding:1.4rem;height:100%}.k3d-tip>i{font-size:1.75rem;color:#2563eb}.k3d-tip h3{font-size:1.1rem;font-weight:750;margin:1rem 0 .6rem}.k3d-tip p{color:#596c88;font-size:.92rem}.k3d-tip a{font-weight:700;text-decoration:none}@media(max-width:767px){.k3d-calc-banner{flex-direction:column;align-items:flex-start}}

/* Kobo3D 2026: portada por pestañas. Estilos encapsulados. */
body{background:#f5f8fe;color:#152b4a}.k3d-new-hero{position:relative;background:radial-gradient(circle at 75% 40%,#387cf4 0%,transparent 36%),linear-gradient(115deg,#112c5c 0%,#16469b 65%,#225bcd 100%);overflow:hidden}.k3d-new-hero>.container{padding-top:3.2rem;padding-bottom:2.6rem}.k3d-hero-copy{position:relative;z-index:2}.k3d-new-hero h1{font-size:clamp(2.5rem,4.6vw,4.3rem);line-height:1.07;font-weight:850;letter-spacing:-.045em;margin:1.1rem 0}.k3d-new-hero h1 span{color:#a9d4ff}.k3d-new-hero p{color:#dbe9ff;font-size:1.07rem;max-width:580px;line-height:1.7}.k3d-hero-button{border-radius:12px;padding:.8rem 1.2rem;font-weight:700}.k3d-hero-trust{font-size:.78rem;margin-top:1.5rem;color:#c7dbfc}.k3d-hero-trust span{padding:0 .35rem;color:#7caeed}.k3d-hero-halo{min-height:290px;border-radius:50%;background:radial-gradient(circle,#78afff45,transparent 69%);display:flex;align-items:center;justify-content:center}.k3d-hero-halo img{max-width:100%;max-height:395px;object-fit:contain;filter:drop-shadow(0 20px 35px #07193655)}.k3d-main{padding-top:2.3rem;padding-bottom:3rem}.k3d-start{margin-bottom:2rem}.k3d-start-title h2{font-weight:800;letter-spacing:-.04em;margin:.35rem 0 1.3rem}.k3d-start-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.k3d-start-card{background:white;border:1px solid #e1eaf8;border-radius:19px;padding:1.2rem;display:flex;gap:.85rem;align-items:center;color:#193151;text-decoration:none;min-width:0;box-shadow:0 12px 32px #17407a09;transition:transform .2s,border-color .2s}.k3d-start-card:hover{color:#173d8c;border-color:#95b9f9;transform:translateY(-3px)}.k3d-start-card>span:nth-child(2){min-width:0;flex:1}.k3d-start-card strong,.k3d-start-card small{display:block}.k3d-start-card strong{font-size:.91rem}.k3d-start-card small{font-size:.74rem;color:#6b7990;margin-top:.3rem}.k3d-start-card>.bi{font-size:.85rem;color:#90a5c6}.k3d-start-icon{display:grid;place-items:center;flex-shrink:0;width:45px;height:45px;border-radius:14px;background:#e9f1ff;color:#2864da;font-size:1.4rem}.k3d-start-icon.purple{background:#f1eaff;color:#8750cf}.k3d-start-icon.teal{background:#e0f7f5;color:#168a8a}.k3d-start-icon.orange{background:#fff0de;color:#bb7425}.k3d-tabs-wrap{position:sticky;top:0;z-index:20;background:#f5f8fef0;backdrop-filter:blur(12px);padding:8px 0 14px}.k3d-tabs-scroll{display:flex;align-items:center;gap:8px;overflow-x:auto;border-bottom:1px solid #dce6f7;padding-bottom:10px}.k3d-tab{border:1px solid transparent;border-radius:13px;padding:.75rem 1rem;background:transparent;white-space:nowrap;color:#647693;font-weight:700;font-size:.87rem;display:flex;align-items:center;gap:.6rem}.k3d-tab:hover{background:#e9f1ff;color:#235aca}.k3d-tab.active{background:#245edb;color:#fff;box-shadow:0 5px 15px #235eda2c}.k3d-tab-panel{padding-top:1.25rem}.k3d-tab-panel[hidden]{display:none!important}.k3d-feature{border-radius:24px;padding:clamp(1.4rem,3vw,2.1rem);display:flex;align-items:center;justify-content:space-between;gap:1.5rem;margin-bottom:2.3rem;background:linear-gradient(105deg,#e5efff,#ffffff);border:1px solid #dce8fa}.k3d-feature h2{font-size:clamp(1.4rem,2.2vw,1.9rem);font-weight:800;letter-spacing:-.035em;margin:.6rem 0}.k3d-feature p{color:#596d89;max-width:650px;margin:0}.k3d-feature-icon{font-size:4rem;color:#3170e3;padding:0 1.4rem}.k3d-tip-icon{display:grid;place-items:center;width:50px;height:50px;border-radius:15px;background:#e9f1ff;color:#2563eb;font-size:1.5rem}.k3d-educational .k3d-tip{box-shadow:0 12px 28px #26476c0b;border-radius:20px;padding:1.55rem}.k3d-tip-icon i{font-size:inherit}.k3d-inline-banner{background:linear-gradient(110deg,#e8f2ff,#f9fcff);border:1px solid #dfeafb;border-radius:24px;display:flex;align-items:center;gap:2rem;min-height:180px;padding:1.4rem 2rem;margin-bottom:2rem}.k3d-inline-banner img{width:180px;height:170px;object-fit:contain;flex-shrink:0}.k3d-inline-banner h2{font-size:clamp(1.4rem,2.5vw,2rem);font-weight:800;letter-spacing:-.04em;margin:.4rem 0}.k3d-inline-banner p{margin:0;color:#667893}.k3d-collab-visual{text-align:right;height:0;position:relative;pointer-events:none}.k3d-collab-visual img{position:absolute;right:0;top:-75px;width:150px;max-height:150px;object-fit:contain;opacity:.95}.k3d-contribute{position:relative}.k3d-new-hero .k3d-eyebrow{color:#e5efff}@media(max-width:1199px){.k3d-start-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:767px){.k3d-new-hero>.container{padding-top:2rem}.k3d-hero-halo{min-height:140px}.k3d-hero-halo img{max-height:220px}.k3d-start-grid{grid-template-columns:1fr}.k3d-start-card{padding:.9rem}.k3d-inline-banner{padding:1rem;gap:1rem}.k3d-inline-banner img{width:95px;height:110px}.k3d-feature-icon{display:none}.k3d-collab-visual{display:none}.k3d-tabs-wrap{top:0}}@media(prefers-reduced-motion:reduce){.k3d-start-card{transition:none}}