:root{color-scheme:light;--bg:#f4f5f7;--card:#fff;--accent:#0a4c8b;--accent-soft:#4fa1d9;--text:#1a1d23;--muted:#5d6676}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;font-family:"Space Grotesk","Segoe UI",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text)}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
.layout{width:min(1180px,92vw);margin:0 auto}

/* ---------- HEADER ---------- */
header{background:#020a14;color:#fff;min-height:80vh;position:relative;overflow:hidden}
header::before{content:"";position:absolute;inset:0;background:url("/assets/img/001.webp") center/cover no-repeat;opacity:.45;z-index:0}
header::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at top left,rgba(79,161,217,.35),transparent 55%),linear-gradient(120deg,rgba(0,0,0,.55),rgba(2,10,20,.8));z-index:1}

/* ---------- NAV ---------- */
nav{display:flex;align-items:center;justify-content:space-between;padding:24px 0;position:relative;z-index:2}
nav strong{font-size:1.4rem;letter-spacing:.04em;color:#fff}
nav ul{display:flex;gap:24px}
nav a{font-weight:500;letter-spacing:.04em;text-transform:uppercase;font-size:.83rem;color:rgba(255,255,255,.85);transition:color .2s}
nav a:hover{color:#fff}

/* ---------- HERO ---------- */
.hero{position:relative;z-index:2;padding:80px 0 110px;display:grid;gap:32px}
.hero h1{font-size:clamp(2.5rem,5vw,4.2rem);max-width:780px;margin:0 0 16px;text-transform:uppercase;text-align:center;justify-self:center}
.hero-sub{max-width:640px;font-size:1.1rem;color:rgba(255,255,255,.85);line-height:1.6;margin:0;text-transform:uppercase;line-height:1.5}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px}

/* ---------- BUTTONS ---------- */
.btn{padding:14px 28px;border-radius:999px;border:1px solid transparent;font-weight:600;font-size:.95rem;letter-spacing:.04em;text-transform:uppercase;cursor:pointer;transition:opacity .2s}
.btn:hover{opacity:.85}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-outline{color:#fff;border-color:rgba(255,255,255,.4)}

/* ---------- SECTIONS ---------- */
section{padding:80px 0}
section:nth-child(even){background:rgba(10,76,139,.04)}
h2{font-size:clamp(2rem,3vw,3rem);margin:0 0 16px}

/* ---------- GRIDS ---------- */
.highlight-grid,.service-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-top:32px}

/* ---------- CARDS ---------- */
.card{background:var(--card);border-radius:18px;overflow:hidden;box-shadow:0 20px 45px rgba(10,16,28,.08);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 28px 56px rgba(10,16,28,.13)}
.card>img{width:100%;height:200px;object-fit:contain;background:#f0f2f5;padding:12px}
.card>img+h3,.card>img~p{padding-left:28px;padding-right:28px}
.card h3{margin:20px 28px 8px;font-size:1.15rem}
.card p{margin:0 28px 28px;color:var(--muted);line-height:1.6}
/* sin imagen: padding uniforme */
.card:not(:has(img)){padding:32px}
.card:not(:has(img)) h3{margin:0 0 8px}
.card:not(:has(img)) p{margin:0}
.muted{color:var(--muted);line-height:1.6}

.service-grid .card{border-top:4px solid var(--accent)}

/* ---------- SPLIT ---------- */
.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:40px;align-items:start}
.split ul{padding-left:20px;list-style:disc}
.split li{margin-bottom:12px;color:var(--muted);line-height:1.6}
.timeline{border-left:2px solid rgba(10,76,139,.2);padding-left:24px;display:grid;gap:24px}
.timeline div{position:relative}
.timeline div::before{content:"";position:absolute;left:-30px;top:4px;width:10px;height:10px;border-radius:50%;background:var(--accent)}
.timeline span{font-weight:600;color:var(--accent);letter-spacing:.12em;font-size:.8rem;display:block;margin-bottom:4px}

/* ---------- GALLERY ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-top:32px}
.gallery-grid img{width:100%;height:220px;object-fit:cover;border-radius:14px;transition:transform .3s,opacity .3s}
.gallery-grid img:hover{transform:scale(1.03);opacity:.92}

/* ---------- CONTACT ---------- */
.contact{background:#030910;color:#fff;border-radius:32px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact h2{color:#fff}
.contact p{color:rgba(255,255,255,.75);line-height:1.7}
.contact form{display:grid;gap:18px}
.contact label{display:block;font-size:.85rem;letter-spacing:.05em;text-transform:uppercase;color:rgba(255,255,255,.6);margin-bottom:6px}
.contact input,.contact textarea{width:100%;padding:12px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.06);color:#fff;font-family:inherit;font-size:1rem;transition:border-color .2s}
.contact input:focus,.contact textarea:focus{outline:none;border-color:var(--accent-soft)}
.contact textarea{resize:vertical;min-height:120px}

/* ---------- FOOTER ---------- */
footer{padding:32px 0;text-align:center;color:var(--muted);font-size:.9rem;border-top:1px solid rgba(10,76,139,.1)}

/* ---------- RESPONSIVE ---------- */
@media(max-width:768px){
    nav ul{gap:12px;flex-wrap:wrap}
    .hero{padding:48px 0 72px}
    .contact{grid-template-columns:1fr;padding:32px}
    .hero-cta{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
    nav ul{display:none}
    .gallery-grid{grid-template-columns:1fr 1fr}
}