/* EFGN Blog — estilos compartidos */
:root{--navy:#0b1f3a;--navy-2:#0e2a52;--blue:#2563eb;--blue-2:#1d4ed8;--cyan:#06b6d4;--violet:#7c3aed;--emerald:#10b981;--amber:#f59e0b;--ink:#0f172a;--muted:#64748b;--line:#e6ebf2;--bg:#f7f9fc;--white:#fff;--radius:16px;--radius-lg:24px;--shadow:0 18px 50px -20px rgba(15,23,42,.25);--maxw:1180px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.eyebrow{font-size:.74rem;font-weight:800;letter-spacing:2.5px;text-transform:uppercase;color:var(--blue);display:inline-flex;align-items:center;gap:8px}
h1,h2,h3{line-height:1.16;letter-spacing:-.02em;font-weight:800}
.grad-text{background:linear-gradient(100deg,#60a5fa,#22d3ee 60%,#a78bfa);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(1rem,1.6vw,1.15rem);color:var(--muted)}
.ic{width:22px;height:22px;stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:.95rem;padding:13px 24px;border-radius:12px;cursor:pointer;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(120deg,var(--blue),var(--cyan));color:#fff;box-shadow:0 12px 30px -10px rgba(37,99,235,.6)}
.btn-wa{background:#16a34a;color:#fff;box-shadow:0 12px 30px -10px rgba(22,163,74,.5)}
.btn-soft{background:#eef3fb;color:var(--blue-2)}
.btn-lg{padding:16px 30px;font-size:1.02rem}
/* header */
header.nav{position:sticky;top:0;z-index:50;backdrop-filter:saturate(160%) blur(12px);background:rgba(255,255,255,.86);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem}
.brand img{height:44px;width:auto}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:.92rem;font-weight:600;color:#475569}
.nav-links a:hover{color:var(--blue)}
.nav-cta{display:flex;align-items:center;gap:10px}
.burger{display:none;background:none;border:0;cursor:pointer;color:var(--ink)}
/* blog hero */
.blog-hero{background:radial-gradient(900px 500px at 85% -20%,rgba(124,58,237,.12),transparent 55%),radial-gradient(700px 400px at 0% 0%,rgba(6,182,212,.12),transparent 50%),var(--bg);padding:clamp(46px,6vw,76px) 0 clamp(30px,4vw,44px);border-bottom:1px solid var(--line)}
.blog-hero h1{font-size:clamp(1.9rem,4.4vw,3rem);margin:14px 0 14px}
.blog-hero .lead{max-width:64ch}
.filters{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
.fchip{display:inline-flex;align-items:center;gap:7px;font-size:.82rem;font-weight:600;padding:8px 14px;border-radius:100px;background:#fff;border:1px solid var(--line);color:#475569;cursor:pointer;transition:all .15s ease}
.fchip .ic{width:15px;height:15px}
.fchip:hover{border-color:#c7d6ef;color:var(--blue)}
.fchip.active{background:linear-gradient(120deg,var(--blue),var(--cyan));color:#fff;border-color:transparent}
/* listado grid 4x5 */
.blog-list{padding:clamp(36px,5vw,60px) 0}
.bgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.bcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.bcard:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#cdd9ec}
.bcard h3{font-size:1.04rem;margin:12px 0 9px;color:var(--ink)}
.bcard p{color:var(--muted);font-size:.9rem;flex-grow:1}
.post-cat{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:800;letter-spacing:.4px;text-transform:uppercase;color:var(--blue);background:rgba(37,99,235,.08);padding:5px 10px;border-radius:100px;align-self:flex-start}
.post-cat .ic{width:14px;height:14px}
.post-cat.sm{font-size:.68rem}
.rel-go{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-weight:700;font-size:.86rem;color:var(--blue)}
.rel-go .ic{width:16px;height:16px;transition:transform .15s ease}
.bcard:hover .rel-go .ic,.rel-card:hover .rel-go .ic{transform:translateX(3px)}
/* paginación */
.pager{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:42px}
.pg{display:grid;place-items:center;min-width:42px;height:42px;padding:0 14px;border-radius:11px;border:1px solid var(--line);background:#fff;font-weight:700;font-size:.92rem;color:#475569;transition:all .15s ease}
.pg:hover{border-color:var(--blue);color:var(--blue)}
.pg.cur{background:var(--blue);color:#fff;border-color:var(--blue)}
.list-note{text-align:center;color:var(--muted);font-size:.84rem;margin-top:20px}
/* post */
.post{padding:clamp(30px,5vw,56px) 0}
.post-wrap{max-width:840px}
.crumbs{font-size:.82rem;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--blue);font-weight:600}
.post h1{font-size:clamp(1.7rem,3.8vw,2.6rem);margin:14px 0 14px}
.post-meta{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.86rem;margin-bottom:8px}
.post-meta .ic{width:16px;height:16px}
.post-content{margin-top:26px}
.post-content p{color:#334155;margin:0 0 16px;font-size:1.02rem;text-align:justify;text-justify:inter-word;hyphens:auto;-webkit-hyphens:auto}
.post-content .lead{font-size:1.12rem;color:#0f172a;margin-bottom:24px}
.post-content h2{font-size:clamp(1.35rem,2.6vw,1.7rem);margin:36px 0 12px;color:var(--ink)}
.post-content h3{font-size:1.18rem;margin:24px 0 8px}
.check-list,.cross-list{display:grid;gap:11px;margin:14px 0 22px;padding:0}
.check-list li,.cross-list li{display:flex;gap:11px;align-items:flex-start;list-style:none}
.check-list .ic{width:21px;height:21px;color:var(--emerald);margin-top:1px}
.cross-list .ic{width:21px;height:21px;color:var(--amber);margin-top:1px}
.check-list span,.cross-list span{color:#334155;font-size:.98rem;text-align:left}
.check-list b,.cross-list b{color:var(--ink)}
.step-list{display:grid;gap:14px;margin:16px 0 22px;padding:0;counter-reset:none}
.step-list li{display:flex;gap:14px;align-items:flex-start;list-style:none}
.step-list .sn{flex-shrink:0;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-weight:800;color:#fff;font-size:.95rem;background:linear-gradient(140deg,var(--blue),var(--cyan))}
.step-list li div{color:#334155;font-size:.98rem;padding-top:4px;text-align:left}
.step-list li b{color:var(--ink)}
.faq{display:grid;gap:11px;margin-top:8px}
.qa{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff}
.qa summary{cursor:pointer;list-style:none;padding:16px 18px;font-weight:700;font-size:.98rem;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:14px}
.qa summary::-webkit-details-marker{display:none}
.qa summary .ic{width:19px;height:19px;color:var(--blue);transition:transform .2s ease}
.qa[open] summary .ic{transform:rotate(45deg)}
.qa .a{padding:0 18px 16px;color:var(--muted);font-size:.95rem}
/* cta post */
.post-cta{margin:48px 0 10px;color:#fff;text-align:center;border-radius:var(--radius-lg);background:radial-gradient(600px 360px at 50% -20%,rgba(6,182,212,.4),transparent 60%),linear-gradient(140deg,var(--blue-2),var(--violet));padding:clamp(34px,5vw,52px) 24px}
.post-cta h2{color:#fff;font-size:clamp(1.4rem,2.8vw,2rem)}
.post-cta p{color:#e6edff;max-width:54ch;margin:12px auto 24px}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;justify-content:center}
/* relacionados */
.related{margin-top:48px}
.related h3{font-size:1.3rem;margin-bottom:18px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cdd9ec}
.rel-card b{margin:10px 0;font-size:.98rem;line-height:1.3}
/* footer */
footer{background:var(--navy);color:#9fb2cc;padding:54px 0 30px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px}
footer .brand{color:#fff}
footer h4{color:#fff;font-size:.95rem;margin-bottom:14px}
footer a{display:block;color:#9fb2cc;font-size:.9rem;padding:5px 0}
footer a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:22px;text-align:center;font-size:.82rem;color:#7f93b0}
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60;width:58px;height:58px;border-radius:50%;background:#16a34a;display:grid;place-items:center;box-shadow:0 14px 30px -8px rgba(22,163,74,.6)}
.wa-float .ic{width:30px;height:30px;color:#fff}
/* responsive */
@media (max-width:1024px){.bgrid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:860px){.bgrid{grid-template-columns:repeat(2,1fr)}.rel-grid{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.nav-links{position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px 22px 18px;display:none}.nav-links.open{display:flex}.nav-links a{padding:12px 0;border-bottom:1px solid var(--line)}.nav-cta .btn-soft{display:none}.burger{display:block}.bgrid{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr}}