:root {
  --azul: #0a2540;
  --azul-claro: #1e3a5f;
  --acento: #ff6b35;
  --acento-hover: #e85826;
  --texto: #1a1a1a;
  --texto-suave: #5a6b7b;
  --fondo: #ffffff;
  --fondo-alt: #f5f8fb;
  --borde: #e3e8ef;
  --exito: #16a34a;
  --sombra: 0 4px 20px rgba(10, 37, 64, 0.08);
  --sombra-hover: 0 8px 30px rgba(10, 37, 64, 0.15);
  --radio: 12px;
  --max: 1200px;
  --trans: 0.25s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--texto);
  line-height: 1.6;
  background: var(--fondo);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--azul); text-decoration: none; transition: color var(--trans); }
a:hover { color: var(--acento); }

.container { max-width: var(--max); margin: 0 auto; padding: 0 1.5rem; }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--azul); }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.25rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; color: var(--texto-suave); }

/* ====== Header ====== */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--borde);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.5rem; max-width: var(--max); margin: 0 auto;
}
.logo { display: flex; align-items: center; gap: 0.5rem; font-weight: 800; font-size: 1.25rem; color: var(--azul); }
.logo img { height: 44px; width: auto; display: block; }
.footer .logo {
  background: white; padding: 0.5rem 0.9rem; border-radius: 10px;
  display: inline-flex; margin-bottom: 1rem;
}
.footer .logo img { height: 34px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 8px;
  background: linear-gradient(135deg, var(--azul), var(--azul-claro));
  display: grid; place-items: center; color: white; font-weight: 900;
}
@media (max-width: 640px) {
  .logo img { height: 36px; }
}
.nav > ul { display: flex; gap: 1.75rem; list-style: none; align-items: center; }
.nav > ul > li { position: relative; }
.nav a { color: var(--texto); font-weight: 500; }
.nav a.cta {
  background: var(--acento); color: white; padding: 0.6rem 1.2rem;
  border-radius: var(--radio); font-weight: 600;
}
.nav a.cta:hover { background: var(--acento-hover); color: white; }

/* Submenú */
.has-submenu > a::after {
  content: " ▾"; font-size: 0.7rem; color: var(--texto-suave); margin-left: 2px;
}
.submenu {
  display: none; position: absolute; top: 100%; left: -0.75rem;
  background: white; border: 1px solid var(--borde);
  border-radius: 10px; min-width: 260px; padding: 0.5rem 0;
  box-shadow: var(--sombra-hover); z-index: 110;
  list-style: none; flex-direction: column; gap: 0;
}
.submenu li { width: 100%; }
.submenu a {
  display: block; padding: 0.7rem 1.1rem; color: var(--texto);
  font-weight: 500; font-size: 0.95rem;
}
.submenu a:hover { background: var(--fondo-alt); color: var(--acento); }
.has-submenu:hover > .submenu,
.has-submenu:focus-within > .submenu { display: flex; }

.menu-toggle {
  display: none; background: none; border: none;
  font-size: 1.5rem; cursor: pointer; color: var(--azul);
}

/* ====== Hero ====== */
.hero {
  background: linear-gradient(135deg, var(--azul) 0%, var(--azul-claro) 100%);
  color: white;
  padding: 5rem 0 6rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,53,0.15), transparent 70%);
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: center; }
.hero h1 { color: white; margin-bottom: 1rem; }
.hero .lead { font-size: 1.2rem; color: rgba(255,255,255,0.85); margin-bottom: 2rem; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-badges { display: flex; gap: 1.5rem; margin-top: 2.5rem; flex-wrap: wrap; }
.hero-badge { display: flex; align-items: center; gap: 0.5rem; color: rgba(255,255,255,0.9); font-size: 0.95rem; }
.hero-badge::before { content: '✓'; width: 24px; height: 24px; background: var(--acento); border-radius: 50%; display: grid; place-items: center; color: white; font-weight: 700; font-size: 0.8rem; }

.hero-visual {
  aspect-ratio: 4/5;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.03));
  border-radius: 20px;
  display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,0.12);
  position: relative;
  overflow: hidden;
}
.hero-visual .icons-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; padding: 2rem;
}
.hero-visual .icon-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 16px; padding: 1.5rem; text-align: center;
  backdrop-filter: blur(10px);
}
.hero-visual .icon-card svg { width: 40px; height: 40px; color: var(--acento); margin-bottom: 0.5rem; }
.hero-visual .icon-card span { color: white; font-weight: 600; font-size: 0.9rem; }

/* ====== Botones ====== */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.9rem 1.75rem; border-radius: var(--radio);
  font-weight: 600; border: none; cursor: pointer;
  transition: transform var(--trans), box-shadow var(--trans), background var(--trans);
  font-size: 1rem; text-decoration: none;
}
.btn-primary { background: var(--acento); color: white; }
.btn-primary:hover { background: var(--acento-hover); color: white; transform: translateY(-2px); box-shadow: 0 10px 25px rgba(255,107,53,0.35); }
.btn-ghost { background: transparent; color: white; border: 2px solid rgba(255,255,255,0.3); }
.btn-ghost:hover { background: rgba(255,255,255,0.1); color: white; }
.btn-outline { background: transparent; color: var(--azul); border: 2px solid var(--borde); }
.btn-outline:hover { border-color: var(--azul); color: var(--azul); }

/* ====== Secciones ====== */
.section { padding: 5rem 0; }
.section-alt { background: var(--fondo-alt); }
.section-title { text-align: center; margin-bottom: 3rem; }
.section-title .eyebrow { color: var(--acento); font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; font-size: 0.85rem; margin-bottom: 0.5rem; display: block; }
.section-title p { max-width: 640px; margin: 0 auto; }

/* ====== Cards de servicios ====== */
.grid-servicios { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.card-servicio {
  background: white; padding: 2rem; border-radius: var(--radio);
  border: 1px solid var(--borde); transition: all var(--trans);
  display: flex; flex-direction: column;
}
.card-servicio:hover { transform: translateY(-4px); box-shadow: var(--sombra-hover); border-color: var(--acento); }
.card-servicio .icon-wrap {
  width: 56px; height: 56px; border-radius: 12px;
  background: linear-gradient(135deg, var(--azul), var(--azul-claro));
  display: grid; place-items: center; margin-bottom: 1.25rem;
}
.card-servicio .icon-wrap svg { width: 28px; height: 28px; color: white; }
.card-servicio ul { list-style: none; margin-top: 1rem; }
.card-servicio ul li { padding-left: 1.25rem; position: relative; margin-bottom: 0.4rem; color: var(--texto-suave); font-size: 0.95rem; }
.card-servicio ul li::before { content: '→'; position: absolute; left: 0; color: var(--acento); font-weight: 700; }
.card-servicio .card-link { margin-top: auto; padding-top: 1rem; font-weight: 600; color: var(--acento); }

/* ====== Pilares / Por qué ====== */
.pilares { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2rem; }
.pilar { text-align: center; padding: 1rem; }
.pilar .num { font-size: 2.5rem; font-weight: 900; color: var(--acento); line-height: 1; }
.pilar h3 { margin: 0.75rem 0; }

/* ====== Galería trabajos ====== */
.grid-trabajos { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.card-trabajo {
  background: white; border-radius: var(--radio);
  overflow: hidden; border: 1px solid var(--borde);
  transition: all var(--trans);
}
.card-trabajo:hover { transform: translateY(-4px); box-shadow: var(--sombra-hover); }
.card-trabajo .foto { aspect-ratio: 4/3; background: linear-gradient(135deg, #e3e8ef, #f5f8fb); overflow: hidden; }
.card-trabajo .foto img { width: 100%; height: 100%; object-fit: cover; }
.card-trabajo .info { padding: 1.25rem; }
.card-trabajo .cat { display: inline-block; background: var(--fondo-alt); color: var(--azul); padding: 0.25rem 0.75rem; border-radius: 20px; font-size: 0.8rem; font-weight: 600; margin-bottom: 0.5rem; }

/* ====== Blog ====== */
.filtros-blog {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  justify-content: center; margin-bottom: 2.5rem;
}
.chip {
  background: white; border: 1px solid var(--borde); color: var(--texto);
  padding: 0.5rem 1.1rem; border-radius: 20px; font-size: 0.9rem;
  cursor: pointer; font-weight: 500; transition: all var(--trans);
}
.chip:hover, .chip.activo { background: var(--azul); color: white; border-color: var(--azul); }

.grid-blog { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.75rem; }
.card-articulo {
  background: white; border-radius: var(--radio);
  overflow: hidden; border: 1px solid var(--borde);
  transition: all var(--trans); display: flex; flex-direction: column;
}
.card-articulo:hover { transform: translateY(-4px); box-shadow: var(--sombra-hover); }
.card-articulo .foto { aspect-ratio: 16/9; background: var(--fondo-alt); overflow: hidden; }
.card-articulo .foto img { width: 100%; height: 100%; object-fit: cover; }
.card-articulo .info { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.card-articulo .meta { display: flex; gap: 0.75rem; font-size: 0.85rem; color: var(--texto-suave); margin-bottom: 0.75rem; }
.card-articulo .meta .cat { color: var(--acento); font-weight: 600; }
.card-articulo h3 { margin-bottom: 0.5rem; }
.card-articulo p { font-size: 0.95rem; flex: 1; }
.card-articulo .leer { margin-top: 1rem; font-weight: 600; color: var(--acento); }

/* ====== Artículo individual ====== */
.articulo-header {
  background: linear-gradient(135deg, var(--azul), var(--azul-claro));
  color: white; padding: 4rem 0 3rem;
}
.articulo-header h1 { color: white; max-width: 800px; }
.articulo-header .meta { color: rgba(255,255,255,0.75); margin-top: 1rem; display: flex; gap: 1rem; flex-wrap: wrap; font-size: 0.95rem; }
.articulo-portada { max-width: 900px; margin: -2rem auto 2.5rem; padding: 0 1.5rem; }
.articulo-portada img { border-radius: var(--radio); box-shadow: var(--sombra-hover); }

.articulo-contenido {
  max-width: 760px; margin: 0 auto; padding: 0 1.5rem 4rem;
  font-size: 1.08rem; line-height: 1.75;
}
.articulo-contenido h2 { margin: 2rem 0 0.75rem; font-size: 1.65rem; }
.articulo-contenido h3 { margin: 1.5rem 0 0.5rem; font-size: 1.3rem; }
.articulo-contenido p { color: var(--texto); margin-bottom: 1.25rem; }
.articulo-contenido ul, .articulo-contenido ol { margin: 0 0 1.25rem 1.5rem; color: var(--texto); }
.articulo-contenido img { border-radius: var(--radio); margin: 1.5rem 0; box-shadow: var(--sombra); }
.articulo-contenido blockquote {
  border-left: 4px solid var(--acento); padding: 0.75rem 1.25rem;
  margin: 1.5rem 0; background: var(--fondo-alt); font-style: italic;
}
.articulo-contenido a { color: var(--acento); text-decoration: underline; }

.cta-articulo {
  background: var(--azul); color: white; padding: 2.5rem;
  border-radius: var(--radio); text-align: center; margin: 2rem 0;
}
.cta-articulo h3 { color: white; margin-bottom: 0.5rem; }
.cta-articulo p { color: rgba(255,255,255,0.8); margin-bottom: 1.5rem; }

/* ====== Formulario contacto ====== */
.contacto-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 3rem; }
.info-contacto { background: var(--azul); color: white; padding: 2.5rem; border-radius: var(--radio); }
.info-contacto h2 { color: white; }
.info-contacto p { color: rgba(255,255,255,0.8); }
.info-item { display: flex; gap: 1rem; align-items: flex-start; margin-top: 1.5rem; }
.info-item svg { width: 22px; height: 22px; color: var(--acento); flex-shrink: 0; margin-top: 3px; }
.info-item strong { display: block; color: white; }
.info-item a { color: rgba(255,255,255,0.85); }
.info-item a:hover { color: var(--acento); }

.form-contacto { background: white; padding: 2.5rem; border-radius: var(--radio); border: 1px solid var(--borde); }
.form-grupo { margin-bottom: 1.25rem; }
.form-grupo label { display: block; margin-bottom: 0.4rem; font-weight: 600; color: var(--azul); font-size: 0.95rem; }
.form-grupo input, .form-grupo textarea, .form-grupo select {
  width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--borde);
  border-radius: 8px; font-size: 1rem; font-family: inherit;
  transition: border-color var(--trans);
}
.form-grupo input:focus, .form-grupo textarea:focus, .form-grupo select:focus {
  outline: none; border-color: var(--acento);
}
.form-grupo textarea { resize: vertical; min-height: 120px; }

/* ====== CTA Band ====== */
.cta-band {
  background: linear-gradient(135deg, var(--acento), var(--acento-hover));
  color: white; padding: 3.5rem 0; text-align: center;
}
.cta-band h2 { color: white; margin-bottom: 0.75rem; }
.cta-band p { color: rgba(255,255,255,0.92); margin-bottom: 1.5rem; }

/* ====== Footer ====== */
.footer {
  background: #061a2e; color: rgba(255,255,255,0.75); padding: 3rem 0 1.5rem;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer h4 { color: white; margin-bottom: 1rem; font-size: 1rem; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 0.5rem; }
.footer ul a { color: rgba(255,255,255,0.7); }
.footer ul a:hover { color: var(--acento); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem; text-align: center; font-size: 0.9rem;
}

/* ====== WhatsApp flotante ====== */
.wa-float {
  position: fixed; bottom: 24px; right: 24px;
  width: 60px; height: 60px; border-radius: 50%;
  background: #25d366; display: grid; place-items: center;
  box-shadow: 0 8px 24px rgba(37,211,102,0.4);
  z-index: 200; transition: transform var(--trans);
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 32px; height: 32px; color: white; }

/* ====== Utilidades ====== */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }
.vacio { text-align: center; padding: 3rem; color: var(--texto-suave); }

/* ====== Responsive ====== */
@media (max-width: 900px) {
  .hero-inner, .contacto-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 400px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .menu-toggle { display: block; }
  .nav > ul { display: none; position: absolute; top: 100%; left: 0; right: 0; background: white; flex-direction: column; padding: 1rem; box-shadow: var(--sombra); gap: 0.5rem; }
  .nav > ul.abierto { display: flex; }
  .nav a { display: block; padding: 0.5rem; }
  .submenu { position: static; box-shadow: none; border: none; padding-left: 1rem; min-width: 0; display: flex; }
  .has-submenu > a::after { display: none; }
  .section { padding: 3rem 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 3rem 0 4rem; }
}