:root {
  --amarillo: #ffd400;
  --azul: #0a2a5e;
  --azul-claro: #1b3f7a;
  --texto: #223;
  --gris: #f4f6f9;
  --blanco: #fff;
}

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

body {
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--texto);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

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

/* Header */
.header {
  background: var(--azul);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  cursor: pointer;
}

.brand strong { color: var(--amarillo); }

.brand img {
  width: 40px;
  height: 40px;
}

.nav { display: flex; gap: 22px; }

.nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
}

.nav a:hover { color: var(--amarillo); }

.menu-toggle {
  display: none;
  font-size: 1.6rem;
  cursor: pointer;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--azul) 0%, var(--azul-claro) 100%);
  color: #fff;
  text-align: center;
  padding: 80px 0 90px;
}

.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 16px;
}

.hero h1 span { color: var(--amarillo); }

.hero p {
  max-width: 640px;
  margin: 0 auto 28px;
  font-size: 1.1rem;
  opacity: .95;
}

.btn {
  display: inline-block;
  background: var(--amarillo);
  color: var(--azul);
  padding: 12px 30px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 700;
  transition: transform .2s;
}

.btn:hover { transform: translateY(-2px); }

/* Sections */
.section { padding: 60px 0; }

.section h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--azul);
  margin-bottom: 36px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid #e3e6ea;
  border-radius: 14px;
  padding: 28px 22px;
  text-align: center;
  box-shadow: 0 4px 14px rgba(0,0,0,.05);
}

.card .icon { font-size: 2.4rem; margin-bottom: 12px; }

.card h3 { color: var(--azul); margin-bottom: 8px; }

.gallery { background: var(--gris); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.grid img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid #dde1e6;
}

/* Marcas / logos */
.logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  align-items: center;
}

.logos img {
  height: 60px;
  filter: grayscale(1);
  opacity: .7;
  transition: all .2s;
}

.logos img:hover {
  filter: none;
  opacity: 1;
}

/* Contacto */
.contact { background: var(--gris); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-bottom: 28px;
}

.contact-info p { margin-bottom: 12px; }

.contact-info a { color: var(--azul); text-decoration: none; }

.contact-info a:hover { text-decoration: underline; }

.social h3 { color: var(--azul); margin-bottom: 12px; }

.social-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  padding: 10px 14px;
  background: var(--azul);
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  width: fit-content;
  transition: background .2s;
}

.social-btn:hover { background: var(--azul-claro); }

.social-btn .ico {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--amarillo);
  color: var(--azul);
  border-radius: 6px;
  font-weight: 700;
}

.whatsapp-big {
  display: block;
  width: fit-content;
  margin: 0 auto;
  background: #25d366;
  color: #fff;
}

.whatsapp-big:hover { background: #1eb657; }

/* Footer */
.footer {
  background: var(--azul);
  color: #fff;
  text-align: center;
  padding: 24px 0;
}

.footer p { opacity: .9; }

/* Responsive */
@media (max-width: 720px) {
  .nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--azul);
    padding: 20px;
    text-align: center;
  }

  .nav.open { display: flex; }

  .menu-toggle { display: block; }

  .hero h1 { font-size: 1.9rem; }

  .contact-grid { grid-template-columns: 1fr; }
}