:root {
  --primary-color: #1e232b;
  --accent-color: #0d47a1;
  --text-light: #ffffff;
  --text-muted: #cccccc;
  --bg-gradient: linear-gradient(to bottom, #0d47a1, #1e232b);
  --highlight: #50a67d;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--primary-color);
  color: var(--text-light);
  line-height: 1.6;
}

header.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background-color: var(--accent-color);
  border-bottom: 1px solid var(--accent-color);
  flex-wrap: wrap;
}

.logo p {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-light);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}

nav a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover,
.btn-contact {
  color: var(--highlight);
}

.btn-contact {
  background-color: var(--accent-color);
  padding: 10px 20px;
  border-radius: 20px;
  color: white;
  font-weight: bold;
}

.hero {
  background: var(--bg-gradient);
  padding: 100px 20px;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: auto;
}

.scroll-down {
  font-size: 2rem;
  margin-top: 40px;
  color: var(--text-light);
}

section {
  width: 100%;
}

.content-section,
.about,
.services,
.contact {
  padding: 80px 20px;
  max-width: 700px;
  text-align: center;
  margin: auto;
}

.about p,
.contact p {
  max-width: 700px;
  margin: auto;
  color: var(--text-muted);
  text-align: center;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  text-align: center;
  color: var(--text-light);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: var(--highlight);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.service-card {
  background-color: #263238;
  padding: 20px;
  border-radius: 12px;
  transition: transform 0.3s;
  border-left: 5px solid var(--highlight);
}

.service-card:hover {
  transform: translateY(-5px);
  background-color: #37474f;
}

.highlighted {
  background-color: var(--accent-color);
  color: white;
}

form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 600px;
  margin: auto;
}

input,
textarea {
  padding: 12px;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  outline: none;
  width: 100%;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

button[type='submit'] {
  background-color: var(--highlight);
  color: white;
  padding: 12px;
  border: none;
  font-weight: bold;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s;
}

button[type='submit']:hover {
  background-color: #3c8d6f;
}

footer {
  background-color: var(--accent-color);
  padding: 20px 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  color: var(--text-light);
  text-align: center;
}

/* Animación inicial oculta */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

/* Cuando está visible */
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hero title animación */
.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  animation: fadeInDown 1s ease-out;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero p {
  animation: fadeInUp 1.2s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  header.navbar {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
  }

  nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
    margin-top: 10px;
  }

  .hero {
    padding: 60px 20px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .service-card {
    padding: 15px;
  }

  .content-section,
  .about,
  .services,
  .contact {
    padding: 60px 20px;
  }

  form {
    padding: 0 10px;
  }
}

@media (max-width: 480px) {
  .logo {
    width: 100%;
    display: flex;
    justify-content: center;
    margin: 10px 0px;
  }

  .nav-item {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  .btn-contact {
    margin: 20px 0px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }

  h2 {
    font-size: 2rem;
  }

  h3 {
    font-size: 1.2rem;
  }

  nav ul {
    gap: 10px;
  }
}