@font-face {
  font-family: 'ClimbingNevis';
  src: url('fonts/ClimbingNevis.ttf') format('truetype');
}

body {
  margin: 0;
  font-family: 'ClimbingNevis', sans-serif;
  background: radial-gradient(circle at top left, #083d6b 0%, #001f3f 100%);
  color: white;
}

header {
  background-color: #0d2b45;
  padding: 40px 20px;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 999;
  border-bottom: 4px solid #1c6ea4;
}

.header-content h1 {
  font-size: 3.5em;
  margin: 0;
  letter-spacing: 2px;
  color: #5be0c2;
}

.header-content p {
  font-size: 1.2em;
  margin-top: 10px;
  color: #8fe4d7;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  margin-top: 20px;
  padding: 0;
  gap: 30px;
}

nav a {
  text-decoration: none;
  color: #ffffff;
  font-size: 1em;
  transition: color 0.3s;
}

nav a:hover {
  color: #5be0c2;
}

main {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: none; /* quitamos el fondo azul */
}

.content-section {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 60px 10%;
  box-sizing: border-box;
  opacity: 0;
  visibility: hidden;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease, visibility 0s linear 0.6s;
  min-height: 100vh; /* ocupa toda la pantalla */
}

.content-section.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition-delay: 0s;
  z-index: 2;
}

.text-box {
  max-width: 600px;
  margin: auto;
  text-align: left;
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
  border-left: 4px solid #5be0c2;
}

/* Galería */
.image-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.image-grid img {
  max-width: 100%;
  max-height: 300px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  object-fit: contain;
}

.image-grid img:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.6);
}

/* Contacto */
#contact {
  background: linear-gradient(to bottom, #002f4b, #005f6b);
  display: flex;
  justify-content: center;
  align-items: center;
}

.contact-container {
  max-width: 600px;
  width: 100%;
  text-align: center;
  color: white;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.contact-form input,
.contact-form textarea {
  padding: 10px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
}

.contact-form textarea {
  height: 100px;
  resize: none;
}

.contact-form button {
  background-color: #00bfa6;
  color: white;
  padding: 12px;
  border: none;
  font-weight: bold;
  cursor: pointer;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

.contact-form button:hover {
  background-color: #009688;
}

/* Lightbox en pantalla completa */
.lightbox {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.95);
  justify-content: center;
  align-items: center;
}

.lightbox-content {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  color: white;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  z-index: 10000;
}

/* Responsive */
@media (max-width: 768px) {
  .image-grid {
    flex-direction: column;
    align-items: center;
  }
}