/* INSPEKTIVA · web corporativa. Sin dependencias externas: fuentes del sistema, iconos y gráficos en SVG. */
:root {
  --petroleo: #0F4B57;
  --petroleo-2: #1d6574;
  --petroleo-osc: #0a333b;
  --naranja: #FF8A2B;
  --negro: #101820;
  --gris: #D9DEE2;
  --blanco: #FFFFFF;

  --bg: #f5f7f8;
  --card: #ffffff;
  --ink: #101820;
  --soft: #46545a;
  --faint: #6f7d83;
  --line: #dfe4e7;
  --accent: var(--petroleo);
  --accent-soft: rgba(15, 75, 87, .07);

  --font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  --max: 1160px;
  --gutter: max(20px, env(safe-area-inset-left, 0px));
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1316; --card: #142024; --ink: #eef2f3; --soft: #b3c0c4; --faint: #84949a; --line: #22323a;
    --accent: #7cc6d2; --accent-soft: rgba(124, 198, 210, .09); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1316; --card: #142024; --ink: #eef2f3; --soft: #b3c0c4; --faint: #84949a; --line: #22323a;
  --accent: #7cc6d2; --accent-soft: rgba(124, 198, 210, .09); color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-underline-offset: 3px; }
h1, h2, h3 { margin: 0; letter-spacing: -.02em; text-wrap: balance; }
h1 { font-size: clamp(34px, 5.6vw, 60px); line-height: 1.04; font-weight: 800; }
h2 { font-size: clamp(27px, 3.6vw, 40px); line-height: 1.1; font-weight: 800; }
h3 { font-size: 19px; line-height: 1.3; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
.wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); }
.eyebrow { font: 600 12.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.lead { font-size: clamp(18px, 2vw, 20px); color: var(--soft); max-width: 60ch; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--card); padding: 8px 12px; z-index: 50; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--naranja); outline-offset: 2px; border-radius: 4px; }

/* Cabecera */
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--petroleo-osc) 92%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,.08); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 68px; }
.brand img { height: 24px; width: auto; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { color: rgba(255,255,255,.82); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:hover { color: #fff; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 22px; border-radius: 10px; font: 600 16px/1 var(--font); text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--naranja); color: var(--negro); }
.btn-primary:hover { background: #ff9a47; }
.btn-ghost { color: #fff; border-color: rgba(255,255,255,.35); }
.btn-ghost:hover { background: rgba(255,255,255,.08); }
.nav .btn { min-height: 38px; padding: 0 16px; font-size: 14.5px; color: var(--negro); }
.menu-toggle { display: none; background: none; border: 0; color: #fff; padding: 8px; cursor: pointer; }

/* Portada */
.hero { background: radial-gradient(1200px 600px at 85% 10%, #165e6c 0%, transparent 60%), var(--petroleo-osc); color: #fff; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; padding-block: 88px 96px; }
.hero .eyebrow { color: var(--naranja); }
.hero h1 { margin-top: 18px; }
.hero .lead { color: rgba(255,255,255,.78); margin-top: 22px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 40px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.7); font-size: 14.5px; }
.hero-facts b { color: #fff; font-weight: 600; }
.hero-visual { position: relative; }
.hero-visual svg { width: 100%; height: auto; filter: drop-shadow(0 30px 60px rgba(0,0,0,.35)); }

/* Secciones */
section { padding-block: 96px; }
.section-head { display: flex; flex-direction: column; gap: 14px; margin-bottom: 48px; max-width: 760px; }
.alt { background: var(--card); border-block: 1px solid var(--line); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.alt .card { background: var(--bg); }
.card p { color: var(--soft); font-size: 16px; }
.card .ico { width: 44px; height: 44px; border-radius: 11px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin-bottom: 6px; }
.card .ico svg { width: 24px; height: 24px; }
.card ul { margin: 4px 0 0; padding-left: 18px; color: var(--soft); font-size: 15.5px; }
.card li + li { margin-top: 4px; }
.tag { align-self: flex-start; font: 600 11.5px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; padding: 6px 9px; border-radius: 6px; background: var(--accent-soft); color: var(--accent); }
.tag.soon { background: rgba(255,138,43,.13); color: #b85410; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .tag.soon { color: var(--naranja); } }

/* Proceso */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: paso; list-style: none; padding: 0; margin: 0; }
.steps li { position: relative; padding-top: 22px; border-top: 3px solid var(--accent); display: flex; flex-direction: column; gap: 10px; }
.steps li::before { counter-increment: paso; content: "0" counter(paso); font: 600 13px/1 var(--mono); color: var(--accent); letter-spacing: .1em; }
.steps p { color: var(--soft); font-size: 16px; }

/* Plataforma */
.platform { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.checks { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-direction: column; gap: 14px; }
.checks li { display: grid; grid-template-columns: 24px 1fr; gap: 12px; color: var(--soft); }
.checks li b { color: var(--ink); font-weight: 600; }
.checks svg { width: 22px; height: 22px; color: var(--naranja); margin-top: 2px; }
.mock { border-radius: 16px; overflow: hidden; border: 1px solid var(--line); background: var(--negro); box-shadow: 0 30px 70px -30px rgba(10, 51, 59, .45); }
.mock svg { width: 100%; height: auto; }

/* Cifras / diferenciales */
.band { background: var(--petroleo); color: #fff; padding-block: 72px; }
.band .grid-3 { gap: 40px; }
.band .stat { display: flex; flex-direction: column; gap: 8px; border-left: 2px solid var(--naranja); padding-left: 20px; }
.band .stat b { font-size: 21px; font-weight: 700; letter-spacing: -.01em; }
.band .stat span { color: rgba(255,255,255,.75); font-size: 16px; }

/* Contacto */
.contact { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: start; }
.contact-box { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 32px; display: flex; flex-direction: column; gap: 18px; }
.contact-box .line { display: flex; flex-direction: column; gap: 2px; }
.contact-box .line span { font: 600 12px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--faint); }
.contact-box .line a { font-size: 20px; font-weight: 600; text-decoration: none; word-break: break-word; }
.contact-box .btn { align-self: flex-start; }

/* Pie */
.site-footer { background: var(--negro); color: rgba(255,255,255,.7); padding-block: 56px 40px; font-size: 15px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 28px 48px; }
.site-footer img { height: 22px; width: auto; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 10px 24px; }
.site-footer a { color: rgba(255,255,255,.8); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer .legal { flex-basis: 100%; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.5); font-size: 13.5px; }

/* Páginas legales */
.doc { max-width: 780px; margin: 0 auto; padding: 72px var(--gutter) 96px; }
.doc h1 { font-size: clamp(30px, 4.4vw, 44px); margin-bottom: 12px; }
.doc .updated { color: var(--faint); font-size: 14.5px; margin-bottom: 40px; }
.doc h2 { font-size: 22px; margin: 40px 0 12px; }
.doc p, .doc li { color: var(--soft); }
.doc p + p { margin-top: 12px; }
.doc ul { padding-left: 20px; }
.doc table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 15.5px; }
.doc th, .doc td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc th { color: var(--ink); width: 34%; font-weight: 600; }

/* Responsive */
@media (max-width: 960px) {
  .hero .wrap, .platform, .contact { grid-template-columns: 1fr; gap: 44px; }
  .hero .wrap { padding-block: 56px 72px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; gap: 32px 20px; }
  .band .grid-3 { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 760px) {
  section { padding-block: 68px; }
  .menu-toggle { display: block; }
  .nav { position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--petroleo-osc); padding: 8px var(--gutter) 20px; border-bottom: 1px solid rgba(255,255,255,.1); display: none; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
  .nav .btn { margin-top: 14px; min-height: 46px; border-bottom: 0; }
  .grid-3, .grid-2, .steps { grid-template-columns: 1fr; }
  .card { padding: 24px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }