/* --- Reset y base --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #002366;      /* Azul corporativo */
  --secondary: #FF6B00;    /* Amarillo/naranja vibrante */
  --light: #f8f9fa;
  --dark: #212529;
  --gray: #6c757d;
  --light-gray: #e9ecef;
}

body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background-color: #fff;
}

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

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* --- Botones --- */
.btn {
  display: inline-block;
  background: var(--secondary);
  color: white;
  padding: 0.8rem 1.8rem;
  border-radius: 4px;
  font-weight: 600;
  transition: background 0.3s;
  border: none;
  cursor: pointer;
  text-align: center;
  font-family: 'Poppins', sans-serif;
}

.btn:hover {
  background: #e05a00;
}

/* --- Secciones --- */
section {
  padding: 4rem 0;
}

h2 {
  font-size: 2.2rem;
  color: var(--primary);
  margin-bottom: 2rem;
  text-align: center;
  font-weight: 700;
}

h3 {
  font-size: 1.4rem;
  margin: 1.2rem 0;
  color: var(--primary);
  font-weight: 600;
}

p {
  margin-bottom: 1rem;
}

/* --- Header --- */
header {
  background: var(--primary);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo svg {
  height: 60px;
}

.nav-links {
  display: flex;
  gap: 1.2rem;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: white;
  margin: 3px 0;
  transition: 0.3s;
}

/* --- Hero --- */
.hero {
  background: linear-gradient(rgba(0, 35, 102, 0.85), rgba(0, 35, 102, 0.9)),
    url('../images/hero-bg.jpg') no-repeat center center/cover;
  color: white;
  text-align: center;
  padding: 6rem 1rem;
}

.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* --- Catálogo --- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin: 2rem 0;
}

.filter-select {
  padding: 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: 'Poppins', sans-serif;
  min-width: 150px;
  font-size: 0.95rem;
}

.machines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.machine-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s;
}

.machine-card:hover {
  transform: translateY(-5px);
}

.machine-img {
  height: 180px;
  width: 100%;
  object-fit: cover;
}

.machine-info {
  padding: 1.2rem;
}

.machine-info h4 {
  margin-bottom: 0.5rem;
  color: var(--primary);
  font-size: 1.2rem;
}

.machine-specs {
  font-size: 0.9rem;
  color: var(--gray);
  margin: 0.5rem 0;
}

.no-results {
  text-align: center;
  grid-column: 1 / -1;
  padding: 2rem;
  color: var(--gray);
}

/* --- Sobre Nosotros --- */
.about {
  background: var(--light);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

/* --- Servicios --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-card {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.service-card i {
  font-size: 2.5rem;
  color: var(--secondary);
  margin-bottom: 1rem;
}

/* --- CTA --- */
.cta {
  background: var(--primary);
  color: white;
  text-align: center;
  padding: 4rem 1rem;
}

.cta h2 {
  color: white;
}

/* --- Contacto --- */
.contact-form {
  max-width: 600px;
  margin: 2rem auto 0;
  display: grid;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.8rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--secondary);
  box-shadow: 0 0 8px rgba(255, 107, 0, 0.3);
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-form button {
  padding: 0.8rem 1.8rem;
}

.contact-form button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-message {
  border-radius: 4px;
  font-weight: 500;
}

/* --- Footer --- */
footer {
  background: var(--dark);
  color: #ddd;
  text-align: center;
  padding: 2.5rem 0;
  font-size: 0.95rem;
  line-height: 1.8;
}

.company-data {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #aaa;
}

/* --- Responsive --- */
@media (