@charset "utf-8";

:root{
  --brand:#2F6EB2;
  --brand-dark:#2D5785;
  --brand-light:#e8f4f1;
  --blue:#3f7db7;
  --ink:#21343a;
  --muted:#66777d;
  --line:#dce7e4;
  --surface:#ffffff;
  --surface-soft:#f5f9f8;
  --shadow:0 14px 40px rgba(29,67,62,.10);
  --radius:18px;
  --header-h:92px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 18px)}
body{margin:0;color:var(--ink);background:#fff;font-family:Arial,Helvetica,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-dark)}
a:hover{color:var(--brand)}
button,a{transition:.2s ease}
button{font:inherit}
.shell{width:min(1120px,calc(100% - 40px));margin:0 auto}
.center{text-align:center}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:16px;top:-60px;z-index:9999;padding:10px 14px;background:#fff;color:#111;border-radius:8px;box-shadow:var(--shadow)}
.skip-link:focus{top:16px}

.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(32,95,86,.10);backdrop-filter:blur(12px)}
.header-inner{min-height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand img{width:104px;height:auto;max-height:78px;object-fit:contain}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav a{text-decoration:none;color:#31464c;font-size:.94rem;font-weight:700;padding:12px 10px;border-radius:10px}
.main-nav a:hover,.main-nav a:focus-visible{background:var(--brand-light);color:var(--brand-dark)}
.main-nav .nav-cta{background:var(--brand);color:#fff;padding-inline:18px;margin-left:4px}
.main-nav .nav-cta:hover,.main-nav .nav-cta:focus-visible{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;width:46px;height:44px;border:0;border-radius:10px;background:var(--brand-light);padding:10px;cursor:pointer}
.nav-toggle span{display:block;height:2px;background:var(--brand-dark);margin:5px 0;border-radius:2px}

.hero{position:relative;min-height:600px;display:flex;align-items:center;background:linear-gradient(110deg,#507cac,#42576e 54%,#7288b6 100%);overflow:hidden;color:#fff}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 75% 24%,rgba(255,255,255,.18),transparent 24%),radial-gradient(circle at 86% 82%,rgba(255,255,255,.09),transparent 26%)}
.hero::after{content:"";position:absolute;width:520px;height:520px;border:85px solid rgba(255,255,255,.055);border-radius:50%;right:-140px;top:-170px}
.hero-inner{position:relative;z-index:1;padding:95px 0 105px}
.hero-copy{max-width:790px}
.eyebrow{margin:0 0 12px;color:var(--brand);font-size:.78rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
.eyebrow.light{color:#d8f3ed}
.hero .eyebrow{color:#d9f3ed}
.hero h1{margin:0;font-size:clamp(3rem,7vw,5.8rem);line-height:.96;letter-spacing:-.045em;max-width:820px}
.hero-subtitle{font-size:clamp(1.35rem,2.8vw,2.05rem);margin:22px 0 18px;max-width:760px;color:#ecf7f5}
.hero-date{display:inline-flex;align-items:center;gap:10px;margin:0;padding:10px 14px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);border-radius:999px;font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:50px;padding:13px 22px;border-radius:12px;text-decoration:none;font-weight:800;border:1px solid transparent;box-shadow:none}
.btn-primary{background:#fff;color:var(--brand-dark)}
.btn-primary:hover{background:#f0faf7;color:var(--brand-dark);transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.05)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-secondary{background:var(--brand);color:#fff}
.btn-secondary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#edf8f5;color:var(--brand-dark)}

.section{padding:88px 0}
.section-soft{background:var(--surface-soft)}
.section-heading{max-width:780px;margin:0 auto 42px}
.section-heading h2{font-size:clamp(2rem,4.8vw,3.25rem);line-height:1.08;letter-spacing:-.035em;margin:0 0 16px;color:var(--ink)}
.section-heading p:not(.eyebrow){margin:0;color:var(--muted);font-size:1.05rem}

.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 6px 18px rgba(29,67,62,.05)}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.info-card .icon{width:48px;height:48px;display:grid;place-items:center;border-radius:13px;background:var(--brand-light);color:var(--brand);font-size:1.25rem;margin-bottom:22px}
.info-card h3{font-size:1.08rem;margin:0 0 10px;color:var(--ink)}
.info-card p{margin:0;color:var(--muted)}
.info-card strong{font-size:1.35rem;color:var(--ink)}
.accent-card{background:linear-gradient(145deg,#eff9f6,#fff)}
.text-link{display:inline-flex;align-items:center;gap:7px;font-weight:800;text-decoration:none;margin-top:15px}
.text-link:hover{text-decoration:underline}

.module-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.module-card{display:flex;gap:20px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;min-height:168px}
.module-card:hover{border-color:#bdd7d0;box-shadow:0 10px 28px rgba(29,67,62,.07)}
.module-number{flex:0 0 54px;height:54px;border-radius:14px;display:grid;place-items:center;background:var(--brand);color:#fff;font-size:1.1rem;font-weight:900;letter-spacing:.05em}
.module-content h3{margin:0 0 14px;font-size:1.08rem;line-height:1.35}
.module-content p{margin:5px 0;color:var(--muted);font-size:.94rem}
.module-content i{width:18px;color:var(--brand)}
.section-cta{margin-top:34px}

.faq-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(520px,1fr);min-height:690px;background:#163f3a}
.faq-image{background-image:linear-gradient(rgba(15,53,48,.14),rgba(15,53,48,.14)),url('../../images/ponencia.jpg');background-position:center;background-size:cover;min-height:100%}
.faq-panel{padding:78px clamp(34px,6vw,88px);background:#fff}
.faq-panel .section-heading{margin:0 0 30px}
.faq-list{border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line);padding:0}
.faq-list summary{cursor:pointer;list-style:none;padding:20px 38px 20px 0;font-weight:800;color:var(--ink);position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:4px;top:16px;font-size:1.6rem;line-height:1;color:var(--brand);font-weight:400}
.faq-list details[open] summary::after{content:"–"}
.faq-answer{padding:0 34px 19px 0;color:var(--muted)}
.faq-answer p{margin:0 0 10px}

.organizers{padding:72px 0}
.organizer-logos{display:flex;align-items:center;justify-content:center;gap:64px;flex-wrap:wrap;margin-top:24px}
.organizer-logos a{display:block}
.coi-wide{width:min(390px,70vw)}
.ual-logo{width:200px}

.final-cta{background:linear-gradient(110deg,var(--brand-dark),var(--brand));color:#fff;padding:54px 0}
.final-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:34px}
.final-cta h2{font-size:clamp(1.9rem,4vw,3rem);margin:0 0 8px;line-height:1.05}
.final-cta p{margin:0;color:#e1f3ef;max-width:760px}

.site-footer{background:#102723;color:#cfddda;padding:36px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.site-footer h2{font-size:.92rem;text-transform:uppercase;letter-spacing:.08em;margin:0 0 10px;color:#fff}
.social-links{display:flex;gap:8px}
.social-links a{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.09);color:#fff;text-decoration:none}
.social-links a:hover{background:var(--brand);transform:translateY(-2px)}
.footer-meta p{margin:0;font-size:.9rem}

.back-to-top{position:fixed;right:20px;bottom:20px;width:44px;height:44px;display:grid;place-items:center;border-radius:50%;background:var(--brand);color:#fff;text-decoration:none;box-shadow:0 8px 24px rgba(0,0,0,.18);opacity:0;visibility:hidden;transform:translateY(8px);z-index:950}
.back-to-top.visible{opacity:1;visibility:visible;transform:none}
.back-to-top:hover{background:var(--brand-dark);color:#fff}

:focus-visible{outline:3px solid #77c6b6;outline-offset:3px}

@media (max-width:980px){
  :root{--header-h:78px}
  .header-inner{min-height:var(--header-h)}
  .brand img{width:82px;max-height:66px}
  .nav-toggle{display:block}
  .main-nav{position:absolute;left:20px;right:20px;top:calc(100% + 8px);display:none;flex-direction:column;align-items:stretch;padding:12px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 14px}
  .main-nav .nav-cta{margin:4px 0 0;text-align:center}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .faq-section{grid-template-columns:1fr}
  .faq-image{min-height:330px;background-position:center}
  .faq-panel{padding:64px 6vw}
}

@media (max-width:700px){
  .shell{width:min(100% - 28px,1120px)}
  .hero{min-height:560px}
  .hero-inner{padding:70px 0 78px}
  .hero h1{font-size:clamp(2.7rem,13vw,4.4rem)}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%}
  .section{padding:66px 0}
  .info-grid,.module-list{grid-template-columns:1fr}
  .info-card{padding:24px}
  .module-card{min-height:0;padding:20px;gap:16px}
  .module-number{flex-basis:48px;height:48px}
  .faq-image{min-height:240px}
  .faq-panel{padding:56px 22px}
  .organizer-logos{gap:34px}
  .final-cta-inner{flex-direction:column;align-items:flex-start}
  .footer-inner{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}