:root{--azul-oscuro:#061a33;--azul-principal:#0b2c55;--azul-medio:#123f73;--azul-claro:#eaf1f8;--blanco:#fff;--gris-texto:#4b5563;--gris-borde:#d8dee8}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:Georgia,"Times New Roman",serif;background:var(--blanco);color:var(--azul-oscuro);line-height:1.6}
a{text-decoration:none;color:inherit}
img{width:100%;display:block}
.top-bar{background:var(--azul-oscuro);color:#fff;font-family:Arial,sans-serif;font-size:14px;padding:10px 5%;display:flex;justify-content:space-between;align-items:center;gap:12px}
.top-left,.top-right{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
header{padding:20px 5%;border-bottom:1px solid var(--gris-borde)}

.logo-box{width:min(100%,260px)}
.logo-box img{width:100%;height:auto;display:block}
nav{padding:0 5%;border-bottom:1px solid var(--gris-borde)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;max-width:1300px;margin:0 auto}
.nav-menu{display:flex;gap:32px;list-style:none;font-family:Arial,sans-serif;font-size:13px;text-transform:uppercase;letter-spacing:1.2px;overflow-x:auto;padding-bottom:2px;flex:1}
.nav-menu a{display:block;padding:14px 0;border-bottom:3px solid transparent}
.nav-menu a.active,.nav-menu a:hover{border-bottom-color:var(--azul-principal);color:var(--azul-principal)}
.brand-area{max-width:1300px;margin:0 auto;display:flex;align-items:center;justify-content:flex-start;gap:18px}
.container{width:90%;max-width:1300px;margin:30px auto}
.home-hero{position:relative;min-height:380px;border:1px solid var(--gris-borde);background-image:linear-gradient(120deg,rgba(255,255,255,.9) 0%,rgba(255,255,255,.82) 45%,rgba(255,255,255,.68) 100%),url("../images/portada-computadora.png");background-size:cover;background-position:center;display:flex;align-items:center;padding:56px 7%;margin-bottom:28px;width:100vw;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw)}
.home-hero-content{max-width:700px}
.home-hero-content h1{font-size:52px;line-height:1.08;color:var(--azul-oscuro);margin-bottom:18px}
.home-hero-content p{font-size:22px;line-height:1.35;color:#1f2f44;margin-bottom:30px}
.home-hero-button{display:inline-block;background:var(--azul-oscuro);color:#fff;font-family:Arial,sans-serif;font-size:13px;text-transform:uppercase;letter-spacing:1px;padding:12px 20px;border:1px solid var(--azul-oscuro);transition:background .2s ease,color .2s ease}
.home-hero-button:hover{background:#fff;color:var(--azul-oscuro)}

.section-title{display:flex;align-items:center;gap:16px;margin:25px 0 16px}
.section-title h2{font-size:20px;text-transform:uppercase;letter-spacing:1.6px;white-space:nowrap}
.section-title:after{content:"";height:1px;background:var(--gris-borde);flex:1}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{border:1px solid var(--gris-borde);background:#fff;padding:14px;display:flex;flex-direction:column;gap:10px}
.card img{height:170px;object-fit:cover;background:#f3f6fa}
.category{font-family:Arial,sans-serif;font-size:11px;text-transform:uppercase;color:var(--azul-medio);font-weight:700;letter-spacing:1px}
.card h3{font-size:22px;line-height:1.2}
.meta{font-family:Arial,sans-serif;font-size:13px;color:#6b7280}
.excerpt{color:var(--gris-texto);font-size:16px}
.article-layout{max-width:900px;margin:34px auto}
.article-title{font-size:46px;line-height:1.1;margin-bottom:16px}
.article-hero{width:100%;height:420px;object-fit:cover;border:1px solid var(--gris-borde);margin:20px 0;background:#f3f6fa}
.article-body p{margin-bottom:18px;font-size:20px;color:#1f2f44}
.article-body .article-byline-note{margin-bottom:14px;font-size:15px;color:#6b7280;line-height:1.45}
.article-body .article-byline-note em{font-style:italic}
.card img,.article-hero{font-size:0}
.back-link{font-family:Arial,sans-serif;color:var(--azul-medio);font-weight:700;margin:18px 0;display:inline-block}
.simple-page h1{font-size:38px;margin-bottom:12px}
.simple-page p{font-size:18px;color:#1f2f44}
.footer{margin-top:56px;background:#00152b;color:#ffffff;padding:48px 0 24px;font-family:Arial,sans-serif}
.footer-inner{max-width:1180px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;align-items:start}
.footer-logo{max-width:260px;height:auto;display:block;margin-bottom:22px}
.footer-description{max-width:56ch;color:rgba(255,255,255,0.82);font-size:14px;line-height:1.7}
.footer-title{font-size:13px;letter-spacing:0.14em;text-transform:uppercase;font-weight:700;color:#ffffff;margin-bottom:18px}
.footer-links,.footer-meta{display:flex;flex-direction:column;gap:10px}
.footer a,.footer-meta p{color:rgba(255,255,255,0.78);text-decoration:none;font-size:14px;line-height:1.55}
.footer a:hover{color:#ffffff}
.footer-socials{display:flex;gap:12px;align-items:center}
.footer-social-link{width:38px;height:38px;border-radius:999px;border:1px solid rgba(255,255,255,0.25);display:inline-flex;align-items:center;justify-content:center;color:#ffffff;transition:all 0.2s ease}
.footer-social-link svg{width:19px;height:19px;display:block;fill:currentColor}
.footer-social-link:hover{background:rgba(255,255,255,0.12);border-color:rgba(255,255,255,0.55);transform:translateY(-1px)}
.footer-bottom{max-width:1180px;margin:36px auto 0;padding:20px 24px 0;border-top:1px solid rgba(255,255,255,0.12);font-size:13px;color:rgba(255,255,255,0.65)}
@media(max-width:1000px){.home-hero{min-height:330px;padding:46px 6%}.home-hero-content h1{font-size:44px}.home-hero-content p{font-size:20px}.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.top-bar{flex-direction:column;align-items:flex-start}.nav-inner{flex-wrap:wrap;padding:8px 0 10px}.nav-menu{gap:20px;order:2;min-width:100%}.home-hero{min-height:300px;padding:40px 8%;background-image:linear-gradient(120deg,rgba(255,255,255,.9) 0%,rgba(255,255,255,.82) 45%,rgba(255,255,255,.68) 100%),url("../images/portada-movil.png");background-size:cover;background-position:center top}.home-hero-content h1{font-size:34px}.home-hero-content p{font-size:18px}.grid{grid-template-columns:1fr}.article-title{font-size:34px}.article-hero{height:260px}}
@media(max-width:700px){.simple-page p{font-size:17px;line-height:1.75;margin-top:10px;max-width:65ch}}

@media(max-width:768px){.article-hero,.card img{width:100%;max-width:100%;height:auto;object-fit:contain;object-position:center;overflow:visible}}


@media(max-width:900px){.footer-inner{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.footer-inner{grid-template-columns:1fr;text-align:left}.footer-logo{max-width:220px}.footer-socials{justify-content:flex-start}}