/* Tema azul tecnológico responsivo para DNX */
:root {
  --bg: #0a1a2b;
  --bg-alt: #0e2438;
  --primary: #0b57d0;
  --primary-700: #084cb3;
  --text: #e8eef6;
  --muted: #b6c2d0;
  --card: #122b45;
  --border: #1f3f62;
  --success: #2ecc71;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% 10%, #0b57d015, transparent) var(--bg);
}
a { color: var(--text); text-decoration: none; }
a:hover { color: #fff; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(10,26,43,0.8); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 600; }
.brand-logo { display: grid; place-items: center; width: 36px; height: 36px; background: linear-gradient(135deg, var(--primary), #29a3ff); color: #fff; border-radius: 8px; font-weight: 700; }
.brand-name { white-space: nowrap; }
.nav { position: relative; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--text); border-radius: 6px; padding: 6px 10px; }
.nav-list { list-style: none; display: flex; gap: 18px; margin: 0; padding: 0; }
.nav-list a { padding: 8px 10px; border-radius: 6px; }
.nav-list a:hover, .nav-list a.active { background: var(--primary-700); }
.nav-list .legal a { opacity: 0.9; }

/* Hero */
.hero { position: relative; padding: 72px 0 48px; overflow: hidden; }
.hero h1 { font-size: clamp(28px, 5vw, 40px); margin: 0 0 12px; }
.hero p { color: var(--muted); max-width: 720px; }
.hero-actions { display: flex; gap: 12px; margin-top: 20px; }
.hero-bg { position: absolute; inset: 0; background: radial-gradient(600px 300px at 80% 20%, #29a3ff22, transparent), radial-gradient(700px 450px at 0% 100%, #0b57d022, transparent); pointer-events: none; }

/* Buttons */
.btn { display: inline-block; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--border); transition: transform .1s ease, background .2s; }
.btn-primary { background: var(--primary); color: #fff; border-color: #084cb3; }
.btn-primary:hover { background: var(--primary-700); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: #fff; }
.btn-secondary:hover { background: #1f3f62; transform: translateY(-1px); }

/* Sections */
section { padding: 36px 0; }
.features .grid,
.services-preview .grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card { background: linear-gradient(180deg, var(--card), #0f253d); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.card h3, .card h2 { margin-top: 0; }
.list { margin: 0; padding-left: 18px; color: var(--muted); }
.actions { margin-top: 16px; }

.process .steps { margin: 0; padding-left: 18px; }
.process .steps li { margin-bottom: 6px; }

.cta { text-align: center; background: linear-gradient(180deg, #0e2438, #0a1a2b); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.cta .btn { margin-top: 12px; }

/* Page */
.page-hero { padding: 48px 0 12px; border-bottom: 1px solid var(--border); background: rgba(16, 36, 58, 0.4); }
.content { display: grid; gap: 12px; }
.grid { display: grid; gap: 16px; }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 32px; background: rgba(10,26,43,0.6); }
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 24px 0; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin: 6px 0; }
.footer-base { display: flex; justify-content: center; padding: 12px 0 20px; color: var(--muted); }

/* Responsive */
@media (max-width: 900px) {
  .features .grid,
  .services-preview .grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-toggle { display: inline-block; }
  .nav-list { position: absolute; right: 0; top: 44px; background: var(--bg-alt); padding: 8px; border: 1px solid var(--border); border-radius: 8px; display: none; flex-direction: column; min-width: 180px; }
  .nav-list.open { display: flex; }
  .features .grid,
  .services-preview .grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .brand-name { display: none; }
}