:root{--navy:#073b6f;--blue:#0d578d;--teal:#00a6a6;--sand:#f4f0e8;--ink:#102b3f;--white:#fff;--line:#d8e0e5}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font:16px/1.65 "DM Sans",sans-serif}img{max-width:100%;display:block}a{color:inherit}.site-header{height:104px;display:flex;align-items:center;justify-content:space-between;padding:20px clamp(24px,6vw,96px);background:#fff;position:sticky;top:0;z-index:10;border-bottom:1px solid rgba(7,59,111,.09)}.brand img{width:150px}.site-header nav{display:flex;gap:28px;align-items:center}.site-header nav a{text-decoration:none;font-weight:600;font-size:.95rem}.site-header nav a:hover,.site-header nav a[aria-current=page]{color:var(--teal)}.menu-button{display:none;background:0;border:1px solid var(--line);padding:9px 14px;border-radius:6px}.hero{min-height:calc(100vh - 104px);display:grid;grid-template-columns:1fr 1.05fr}.hero-copy{padding:clamp(52px,8vw,120px) clamp(30px,6vw,96px);align-self:center}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.76rem;font-weight:700;color:var(--teal);margin:0 0 20px}.hero h1,.blog h1{font:800 clamp(3.1rem,6.5vw,6.8rem)/.96 "Libre Franklin",sans-serif;letter-spacing:-.055em;color:var(--navy);margin:0 0 34px}.hero h2{font:700 clamp(1.25rem,2vw,1.85rem)/1.25 "Libre Franklin",sans-serif;color:var(--navy);margin:0 0 20px;max-width:620px}.hero-copy>p:not(.eyebrow){max-width:610px}.hero-image{margin:0;position:relative;overflow:hidden}.hero-image img{width:100%;height:100%;object-fit:cover}.hero-image figcaption{position:absolute;right:28px;bottom:28px;background:rgba(255,255,255,.9);padding:10px 14px;font-size:.8rem}.text-link{display:inline-block;margin-top:18px;color:var(--navy);text-decoration:none;font-weight:700;border-bottom:2px solid var(--teal);padding-bottom:5px}.activity{padding:clamp(70px,9vw,130px) clamp(24px,7vw,110px)}.navy{background:var(--navy);color:#fff}.sand{background:var(--sand)}.section-heading{max-width:920px;margin-bottom:58px}.section-heading h2,.team h2,.panel h2{font:800 clamp(2.35rem,5vw,5rem)/1.04 "Libre Franklin",sans-serif;letter-spacing:-.04em;margin:0 0 18px}.section-heading>p:last-child{font-size:1.2rem;max-width:720px}.region-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.3);border-bottom:1px solid rgba(255,255,255,.3);margin-bottom:80px}.region-grid article{padding:34px 34px 42px;border-right:1px solid rgba(255,255,255,.3)}.region-grid article:last-child{border:0}.region-grid span,.steps b{color:var(--teal);font-weight:700}.region-grid h3{font-size:1.5rem;margin:16px 0 8px}.feature-grid{display:grid;grid-template-columns:minmax(280px,.8fr) 1.2fr;gap:clamp(40px,7vw,100px);align-items:center;margin:70px 0}.feature-grid.reverse{grid-template-columns:1fr 1fr}.feature-grid img{width:100%;max-height:700px;object-fit:cover}.feature-grid h3,.agreements h3{font:700 clamp(1.8rem,3vw,2.8rem)/1.15 "Libre Franklin",sans-serif}.timeline{list-style:none;padding:0;margin:26px 0}.timeline li{padding:13px 0;border-bottom:1px solid rgba(255,255,255,.2)}.timeline b{display:inline-block;min-width:110px;color:#58d4ce}.agreements{margin:60px 0}.chips{display:flex;flex-wrap:wrap;gap:12px}.chips span{border:1px solid rgba(255,255,255,.35);padding:10px 17px;border-radius:30px}.activity blockquote{font:600 clamp(1.6rem,3vw,3rem)/1.25 "Libre Franklin",sans-serif;margin:70px 0;max-width:980px;border-left:5px solid var(--teal);padding-left:30px}.button{display:inline-flex;align-items:center;gap:18px;background:var(--navy);color:#fff;text-decoration:none;padding:17px 24px;font-weight:700;border-radius:4px}.button.light{background:#fff;color:var(--navy)}.button small{font-weight:500;opacity:.7}.resource-list article{padding:24px 0;border-bottom:1px solid #c9c2b6}.resource-list b{font-size:1.45rem;color:var(--navy)}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#cec9c0;margin:75px 0}.steps article{background:#fff;padding:30px}.steps h3{margin:20px 0 8px}.team{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding:clamp(70px,9vw,130px) clamp(24px,7vw,110px);background:#fff}.teacher{margin-top:40px}.team ul{list-style:none;margin:55px 0 0;padding:0;border-top:1px solid var(--line)}.team li{padding:17px 0;border-bottom:1px solid var(--line);font-weight:600}.panel{display:grid;grid-template-columns:.65fr 1fr;align-items:center;gap:clamp(40px,8vw,120px);padding:clamp(70px,9vw,130px) clamp(24px,9vw,140px);background:#d9eef1}.panel img{max-height:580px;margin:auto;box-shadow:0 18px 55px rgba(7,59,111,.16)}footer{display:flex;align-items:center;gap:28px;padding:40px clamp(24px,7vw,110px);background:#061f35;color:#fff}footer img{width:130px;filter:brightness(0) invert(1);opacity:.85}footer p{margin:0}footer a{margin-left:auto}.blog{padding:90px clamp(24px,7vw,110px);min-height:80vh}.blog h1{max-width:900px;margin-bottom:20px}.blog-intro{font-size:1.2rem;margin-bottom:60px}.post-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px}.post{border:1px solid var(--line);background:#fff}.post>img{width:100%;height:350px;object-fit:cover}.post>div{padding:32px}.post h2{font:700 1.8rem/1.2 "Libre Franklin",sans-serif;color:var(--navy)}@media(max-width:850px){.site-header{height:82px;padding:14px 22px}.brand img{width:125px}.menu-button{display:block}.site-header nav{display:none;position:absolute;top:82px;left:0;right:0;background:#fff;padding:20px;flex-direction:column;box-shadow:0 15px 25px rgba(0,0,0,.08)}.site-header nav.open{display:flex}.hero{grid-template-columns:1fr}.hero-copy{padding:60px 24px}.hero h1{font-size:clamp(3rem,13vw,4.5rem)}.hero-image{height:62vh}.region-grid,.steps,.team,.panel,.post-grid{grid-template-columns:1fr}.region-grid article{border-right:0;border-bottom:1px solid rgba(255,255,255,.3)}.feature-grid,.feature-grid.reverse{grid-template-columns:1fr;gap:35px}.steps{gap:1px}.team{gap:20px}.panel img{max-height:430px}footer{align-items:flex-start;flex-direction:column}footer a{margin-left:0}}
:root{--hero-top-gap:clamp(52px,5vw,84px)}
.hero-copy{align-self:start!important;padding-top:var(--hero-top-gap)!important}

/* Cabecera visual de la Actividad 1 */
#actividad-1{padding-top:0;scroll-margin-top:104px;background-color:var(--navy);background-image:linear-gradient(180deg,rgba(3,31,58,.48) 0%,rgba(3,31,58,.72) 62%,var(--navy) 100%),url("integracion-geopolitica.png");background-position:center top;background-repeat:no-repeat;background-size:100% 850px}
#actividad-1 .section-heading{min-height:520px;max-width:1180px;margin:0 auto 12px;display:flex;flex-direction:column;justify-content:center;text-align:center;align-items:center;text-shadow:0 3px 24px rgba(0,20,38,.5)}
#actividad-1 .section-heading .eyebrow{color:#67e2dc;background:rgba(2,31,58,.55);padding:8px 14px;border-radius:999px;margin-bottom:25px}
#actividad-1 .section-heading h2{font-size:clamp(3.2rem,6.4vw,7.2rem);max-width:1280px;margin-bottom:24px}
#actividad-1 .section-heading>p:last-child{font-size:clamp(1.15rem,2vw,1.75rem);font-weight:600;max-width:920px;margin:0}
#actividad-1 .region-grid{gap:24px;border:0;margin:0 0 110px;background:transparent}
#actividad-1 .region-grid article{min-height:245px;padding:38px 34px;background:rgba(255,255,255,.95);color:var(--navy);border:0;border-top:6px solid var(--teal);box-shadow:0 18px 45px rgba(0,22,43,.22)}
#actividad-1 .region-grid article:nth-child(2){border-top-color:#c76b36}
#actividad-1 .region-grid article:nth-child(3){border-top-color:#2b8b50}
#actividad-1 .region-grid h3{font-size:1.75rem;margin-top:12px}
#actividad-1 .region-grid p{font-size:1.05rem}
@media(max-width:850px){#actividad-1{background-size:auto 760px;background-position:center top}#actividad-1 .section-heading{min-height:470px;text-align:left;align-items:flex-start}#actividad-1 .section-heading h2{font-size:clamp(2.7rem,12vw,4.7rem)}#actividad-1 .region-grid{gap:14px;margin-bottom:75px}#actividad-1 .region-grid article{min-height:auto}}