:root {
  --navy: #083860;
  --blue: #0D4E8A;
  --cyan: #1AAFD6;
  --accent: #3CD3EE;
  --mineral: #5A6878;
  --ink: #243441;
  --muted: #4A5B70;
  --line: #DCE5EF;
  --bg: #FFFFFF;
  --bg-alt: #F3F6F9;
  --dark: #061C36;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.6 Inter, system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
h1, h2, h3 { font-family: Montserrat, Inter, sans-serif; color: var(--navy); line-height: 1.15; margin: 0 0 .6em; text-wrap: balance; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); font-weight: 700; letter-spacing: -.01em; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }
a { color: var(--blue); }
img { max-width: 100%; height: auto; display: block; }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.eyebrow { color: var(--cyan); font-weight: 600; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 56ch; }

/* nav */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.94); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand img { height: 58px; width: auto; mix-blend-mode: multiply; }
.nav nav { display: flex; gap: 28px; margin-left: auto; }
.nav nav a { color: var(--ink); text-decoration: none; font-weight: 500; font-size: .95rem; }
.nav nav a:hover { color: var(--blue); }

/* buttons */
.btn { display: inline-block; background: var(--blue); color: #fff; border: 0; border-radius: 10px; padding: 15px 24px; font: 600 1rem Inter, sans-serif; text-decoration: none; cursor: pointer; transition: background .2s, transform .2s, box-shadow .2s; }
.btn:hover { background: var(--navy); transform: translateY(-1px); }
.btn-sm { padding: 10px 16px; font-size: .9rem; }
.btn-accent { background: var(--accent); color: var(--dark); }
.btn-accent:hover { background: #5EE4F4; box-shadow: 0 10px 30px -10px rgba(60,211,238,.7); }
.btn:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }

/* hero */
.hero { position: relative; overflow: hidden; color: #fff; padding: 128px 0 120px; background:
  radial-gradient(900px 500px at 80% 10%, rgba(26,175,214,.22), transparent 70%),
  radial-gradient(700px 400px at 0% 100%, rgba(13,78,138,.45), transparent 70%), var(--dark); }
#net { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-in { position: relative; }
.hero h1 { color: #fff; max-width: 18ch; }
.hero .lead { color: #C3D3E8; margin-bottom: 34px; }

/* sections */
.section { padding: 96px 0; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.pillar { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; background: #fff; transition: transform .25s, box-shadow .25s, border-color .25s; }
.pillar:hover { transform: translateY(-4px); border-color: var(--cyan); box-shadow: 0 20px 40px -24px rgba(8,56,96,.4); }
.pillar svg { width: 40px; height: 40px; fill: none; stroke: var(--cyan); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 18px; }
.pillar p { color: var(--muted); margin: 0; }

/* industrias */
.dark { background: linear-gradient(135deg, var(--dark), #0B3A6E); color: #fff; }
.dark h2 { color: #fff; }
.dark .lead { color: #C3D3E8; }
.ind-in { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.sectors { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sectors li { border: 1px solid rgba(255,255,255,.16); border-radius: 12px; padding: 18px; background: rgba(255,255,255,.04); color: #DCE7F5; transition: background .25s, border-color .25s; }
.sectors li:hover { background: rgba(255,255,255,.08); border-color: rgba(60,211,238,.6); }
.sectors b { font-weight: 600; }
.sectors li:last-child { grid-column: 1 / -1; }
.sectors .core { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; border-color: var(--accent); background: rgba(60,211,238,.12); }
.sectors .core b { font: 700 1.3rem Montserrat, sans-serif; color: #fff; }
.sectors .core span { font-size: .75rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--dark); background: var(--accent); padding: 4px 10px; border-radius: 99px; }

/* servicios */
.services { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 40px; }
.svc { position: relative; background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 20px; transition: transform .25s, background .25s, box-shadow .25s; }
.svc::after { content: ""; position: absolute; left: 20px; right: 20px; bottom: 0; height: 3px; background: var(--cyan); transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.svc:hover { transform: translateY(-4px); background: #fff; box-shadow: 0 20px 40px -24px rgba(8,56,96,.4); }
.svc:hover::after { transform: scaleX(1); }
.svc span { font: 800 .85rem Montserrat, sans-serif; color: var(--mineral); letter-spacing: .1em; }
.svc h3 { font-size: 1.05rem; margin: 10px 0 8px; }
.svc p { color: var(--muted); font-size: .92rem; margin: 0; }

/* metodología */
.method { background: var(--bg-alt); border-top: 1px solid var(--line); }
.stages { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.stage { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 18px; display: flex; flex-direction: column; gap: 8px; transition: transform .25s, box-shadow .25s; }
.stage:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -24px rgba(8,56,96,.4); }
.stage h3 { font-size: 1rem; margin: 0; }
.stage p { color: var(--muted); font-size: .9rem; margin: 0; flex: 1; }
.stage b { font-size: .85rem; color: var(--blue); font-weight: 600; }
.st-n { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; font: 800 .95rem Montserrat, sans-serif; color: #fff; background: var(--blue); }
.stage[data-fase="aut"] .st-n { background: var(--cyan); }
.phases { display: grid; grid-template-columns: 3fr 2fr; gap: 14px; margin-top: 12px; }
.phases span { text-align: center; font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; padding: 8px; border-radius: 8px; }
.ph-opt { background: rgba(13,78,138,.1); color: var(--blue); }
.ph-aut { background: rgba(26,175,214,.14); color: #0B7896; }
.trl { margin-top: 64px; background: linear-gradient(135deg, var(--dark), #0B3A6E); color: #fff; border-radius: var(--radius); padding: 36px; }
.trl-head { display: grid; grid-template-columns: 1fr 1.6fr; gap: 24px; align-items: end; margin-bottom: 28px; }
.trl-head h3 { color: #fff; font-size: 1.4rem; margin: 0; }
.trl-head p { color: #C3D3E8; margin: 0; }
.trl-scale { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(9, 1fr); gap: 6px; }
.trl-scale li { border-radius: 10px; padding: 14px 10px; display: grid; gap: 6px; align-content: start; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); }
.trl-scale li[data-g="2"] { background: rgba(60,211,238,.12); border-color: rgba(60,211,238,.35); }
.trl-scale li[data-g="3"] { background: rgba(60,211,238,.26); border-color: var(--accent); }
.trl-scale b { font: 800 1.3rem Montserrat, sans-serif; color: var(--accent); }
.trl-scale li[data-g="3"] b { color: #fff; }
.trl-scale span { font-size: .78rem; line-height: 1.35; color: #DCE7F5; }
.trl-groups { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-top: 10px; }
.trl-groups span { text-align: center; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: #9FB6D3; border-top: 2px solid rgba(255,255,255,.2); padding-top: 8px; }
.trl-groups span:last-child { color: var(--accent); border-color: var(--accent); }

/* contacto */
.cta { background: var(--bg-alt); border-top: 1px solid var(--line); }
.cta-in { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.cta-in > div p { color: var(--muted); font-size: 1.1rem; }
.form { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; display: grid; gap: 14px; box-shadow: 0 24px 48px -32px rgba(8,56,96,.35); }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form label { display: grid; gap: 6px; font-weight: 600; font-size: .9rem; color: var(--navy); }
.form input, .form textarea { font: 400 1rem Inter, sans-serif; padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink); width: 100%; resize: vertical; }
.form .btn { justify-self: start; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.cf-turnstile { min-height: 65px; }
.form-status { margin: 0; padding: 12px 14px; border-radius: 8px; font-size: .92rem; font-weight: 500; }
.form-status.ok { background: #E6F7EE; color: #11603A; }
.form-status.error { background: #FDECEC; color: #9B1C1C; }
.form-status a { color: inherit; font-weight: 600; }
.btn[disabled] { opacity: .65; cursor: wait; transform: none; }

/* footer */
.foot { padding: 32px 0; border-top: 1px solid var(--line); }
.foot-in { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; font-size: .9rem; color: var(--muted); }
.foot-in img { height: 44px; width: auto; mix-blend-mode: multiply; }
.foot-in p { margin: 0; }
.foot-in p:last-child { margin-left: auto; }

/* WhatsApp y volver arriba */
.fab { position: fixed; right: 20px; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); z-index: 20; display: grid; gap: 12px; justify-items: center; }
.fab a { display: grid; place-items: center; border-radius: 50%; text-decoration: none; transition: transform .2s, opacity .25s, visibility .25s; }
.fab a:hover { transform: translateY(-2px); }
.fab-wa { width: 56px; height: 56px; background: #25D366; box-shadow: 0 10px 24px -8px rgba(0,0,0,.35); }
.fab-wa svg { width: 30px; height: 30px; fill: #fff; }
.fab-top { width: 44px; height: 44px; background: var(--navy); box-shadow: 0 8px 20px -8px rgba(0,0,0,.4); opacity: 0; visibility: hidden; }
.fab-top.show { opacity: 1; visibility: visible; }
.fab-top svg { width: 22px; height: 22px; fill: none; stroke: #fff; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }

/* fade-in */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* responsive */
@media (max-width: 1024px) {
  .services { grid-template-columns: repeat(3, 1fr); }
  .stages { grid-template-columns: repeat(3, 1fr); }
  .phases { display: none; }
  .trl-scale { grid-template-columns: repeat(3, 1fr); }
  .trl-groups { display: none; }
  .trl-head { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav nav { display: none; }
  .nav .btn-sm { margin-left: auto; }
  .brand img { height: 42px; }
  .hero { padding: 80px 0; }
  .section { padding: 64px 0; }
  .grid-3, .ind-in, .cta-in, .form .row { grid-template-columns: 1fr; }
  .ind-in, .cta-in { gap: 32px; }
  .services { grid-template-columns: 1fr 1fr; }
  .stages { grid-template-columns: 1fr; }
  .trl { padding: 24px 18px; }
  .foot-in p:last-child { margin-left: 0; }
}
@media (max-width: 420px) {
  .services, .sectors { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}