:root {
  --azul-900: #0b2545;
  --azul-700: #13315c;
  --azul-500: #1d5db3;
  --azul-400: #2f7fe0;
  --acento: #ff8a3d;
  --acento-oscuro: #e56f22;
  --gris-950: #10151d;
  --gris-800: #2b3546;
  --gris-600: #5b6579;
  --gris-300: #d7dde6;
  --gris-100: #f4f6fa;
  --blanco: #ffffff;
  --radio: 14px;
  --sombra: 0 10px 30px -12px rgba(11, 37, 69, 0.25);
  --fuente: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--fuente);
  color: var(--gris-800);
  background: var(--blanco);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { font-weight: 800; color: var(--azul-900); line-height: 1.2; margin: 0 0 16px; }
h1 { font-size: clamp(2rem, 4vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 16px; color: var(--gris-600); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--gris-300);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--azul-900);
}
.brand-mark {
  background: linear-gradient(135deg, var(--azul-500), var(--azul-900));
  color: var(--blanco);
  padding: 4px 10px;
  border-radius: 8px;
  letter-spacing: 0.5px;
}
.site-nav { display: flex; gap: 6px; align-items: center; }
.nav-link {
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 600;
  color: var(--gris-700, var(--gris-800));
  font-size: 0.95rem;
}
.nav-link:hover { background: var(--gris-100); }
.nav-link.activo { background: var(--azul-900); color: var(--blanco); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--azul-900); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(circle at 15% 20%, rgba(47,127,224,0.14), transparent 45%),
              linear-gradient(180deg, var(--gris-100), var(--blanco));
  padding: 84px 0 72px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  color: var(--azul-500);
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin-bottom: 14px;
}
.hero p.lead { font-size: 1.15rem; max-width: 46ch; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.hero-card {
  background: var(--blanco);
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  padding: 28px;
  border: 1px solid var(--gris-300);
}
.hero-card ul { margin: 0; padding: 0; list-style: none; }
.hero-card li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--gris-100);
}
.hero-card li:last-child { border-bottom: none; }
.hero-card .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--acento); margin-top: 6px; flex-shrink: 0;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn-primario { background: var(--azul-900); color: var(--blanco); }
.btn-primario:hover { background: var(--azul-700); }
.btn-secundario { border-color: var(--azul-900); color: var(--azul-900); }
.btn-secundario:hover { background: var(--azul-900); color: var(--blanco); }
.btn-acento { background: var(--acento); color: var(--blanco); }
.btn-acento:hover { background: var(--acento-oscuro); }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-peligro { background: #c0392b; color: var(--blanco); }

/* ---------- Secciones genericas ---------- */
.seccion { padding: 72px 0; }
.seccion-alt { background: var(--gris-100); }
.seccion-cabecera { max-width: 680px; margin: 0 auto 44px; text-align: center; }
.seccion-cabecera p { margin: 0 auto; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}

.card {
  background: var(--blanco);
  border: 1px solid var(--gris-300);
  border-radius: var(--radio);
  padding: 30px;
  box-shadow: var(--sombra);
  height: 100%;
}
.card .icono {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--azul-500), var(--azul-900));
  color: var(--blanco);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
}

/* ---------- Historia / Mision ---------- */
.historia-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}
.linea-tiempo { border-left: 3px solid var(--azul-400); padding-left: 22px; margin-top: 24px; }
.linea-tiempo .anio { font-weight: 800; color: var(--azul-500); }

/* ---------- Novedades ---------- */
.novedad-card {
  background: var(--blanco);
  border: 1px solid var(--gris-300);
  border-radius: var(--radio);
  padding: 26px;
  box-shadow: var(--sombra);
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
}
.novedad-fecha {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--azul-500);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.novedad-pdf-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--acento-oscuro);
  background: rgba(255, 138, 61, 0.12);
  padding: 5px 10px;
  border-radius: 999px;
  width: fit-content;
}
.novedad-detalle-header { max-width: 760px; margin: 0 auto 32px; }
.novedad-cuerpo { max-width: 760px; margin: 0 auto; white-space: pre-line; }
.descarga-pdf-box {
  max-width: 760px;
  margin: 32px auto 0;
  background: var(--gris-100);
  border: 1px dashed var(--gris-300);
  border-radius: var(--radio);
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.paginacion { display: flex; gap: 10px; justify-content: center; margin-top: 40px; }
.paginacion a, .paginacion span {
  padding: 9px 15px;
  border-radius: 8px;
  border: 1px solid var(--gris-300);
  font-weight: 600;
}
.paginacion .activo { background: var(--azul-900); color: var(--blanco); border-color: var(--azul-900); }

.vacio {
  text-align: center;
  padding: 60px 20px;
  color: var(--gris-600);
}

/* ---------- Contacto ---------- */
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--gris-300); }
.info-list .icono-sm {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--gris-100); display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; color: var(--azul-500); font-weight: 700;
}

form.formulario { display: flex; flex-direction: column; gap: 16px; }
.formulario label { font-weight: 600; color: var(--azul-900); font-size: 0.9rem; margin-bottom: 6px; display: block; }
.formulario input, .formulario textarea, .formulario select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--gris-300);
  font-family: var(--fuente);
  font-size: 0.96rem;
}
.formulario input:focus, .formulario textarea:focus {
  outline: none;
  border-color: var(--azul-500);
  box-shadow: 0 0 0 3px rgba(47, 127, 224, 0.15);
}
.formulario textarea { min-height: 130px; resize: vertical; }

.alerta { padding: 14px 18px; border-radius: 10px; font-weight: 600; margin-bottom: 20px; }
.alerta-ok { background: #e5f6ea; color: #1f7a3d; border: 1px solid #b9e6c4; }
.alerta-error { background: #fdeceb; color: #b3261e; border: 1px solid #f6c7c3; }

/* ---------- Admin ---------- */
.admin-shell { min-height: 100vh; background: var(--gris-100); }
.admin-topbar {
  background: var(--azul-900);
  color: var(--blanco);
  padding: 16px 0;
}
.admin-topbar .container { display: flex; justify-content: space-between; align-items: center; }
.admin-topbar a.salir { color: var(--blanco); opacity: 0.85; font-weight: 600; }
.admin-wrap { max-width: 900px; margin: 0 auto; padding: 40px 24px; }
.login-box {
  max-width: 400px;
  margin: 90px auto;
  background: var(--blanco);
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  padding: 40px 34px;
}
.tabla-admin { width: 100%; border-collapse: collapse; background: var(--blanco); border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); }
.tabla-admin th, .tabla-admin td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--gris-300); font-size: 0.92rem; }
.tabla-admin th { background: var(--gris-100); color: var(--azul-900); }
.acciones-fila { display: flex; gap: 8px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--gris-950); color: var(--gris-300); padding: 56px 0 0; margin-top: 60px; }
.footer-inner { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.brand-footer { color: var(--blanco); }
.footer-tag { max-width: 32ch; color: var(--gris-300); margin-top: 10px; }
.footer-nav { display: flex; gap: 20px; flex-wrap: wrap; align-content: start; }
.footer-nav a { color: var(--gris-300); font-weight: 600; }
.footer-nav a:hover { color: var(--blanco); }
.footer-bottom { padding: 22px 24px; text-align: center; font-size: 0.85rem; color: var(--gris-600); }

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .hero-grid, .historia-grid, .grid-2, .contacto-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--blanco);
    flex-direction: column;
    align-items: stretch;
    padding: 10px 20px 20px;
    border-bottom: 1px solid var(--gris-300);
    display: none;
    gap: 4px;
  }
  .site-nav.abierto { display: flex; }
  .nav-link { text-align: center; }
  .grid-3 { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 48px; }
  .seccion { padding: 52px 0; }
  .footer-inner { flex-direction: column; }
}