:root {
  --verde: #3c8c5a;
  --celeste: #7ec8e3;
  --amarillo: #ffd166;
  --fondo: #f5f7f4;
  --texto: #222;
  --gris-claro: #e6e6e6;
  --sombra: rgba(0, 0, 0, 0.15);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", "Arial", sans-serif;
}

html, body {
  height: 100%;
  margin: 0;
  background: var(--fondo);
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}


.main-content {
  flex: 1;
  padding-bottom: 20px;
}


header {
  display: flex;
  align-items: center;
  justify-content: space-between; 
  background: #fff;
  border-bottom: 3px solid var(--verde);
  padding: 10px 20px;
  position: sticky;
  top: 0;
  z-index: 20;
}

header .logo img {
  height: 65px;
  width: auto;
}

.menu-toggle {
  display: none;
  font-size: 32px;
  background: none;
  border: 2px solid transparent;
  color: var(--verde);
  cursor: pointer;
  border-radius: 8px;
  padding: 2px 8px;
}

nav.menu {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

nav.menu a {
  text-decoration: none;
  color: var(--texto);
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 10px;
  border: 2px solid var(--verde);
  background: linear-gradient(135deg, var(--celeste), var(--amarillo));
  transition: all 0.25s ease;
}

nav.menu a:hover,
nav.menu a.activo {
  background: var(--verde);
  color: #fff;
}

.titulo-galeria {
  text-align: center;
  font-size: 42px;
  font-weight: 700;
  color: var(--verde);
  margin: 40px 0 10px;
  letter-spacing: 1px;
  position: relative;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  width: 100%;
  padding: 20px;
}

.image-item {
  width: 100%;
  aspect-ratio: 16/9; 
  overflow: hidden;
  border-radius: 10px;
}

.image-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-item img:hover {
  transform: scale(1.1);
}

.foro-btn {
  display: inline-block;
  background: var(--verde);
  color: #fff;
  padding: 14px 26px;
  border-radius: 10px;
  font-size: 20px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 4px 8px rgba(0,0,0,0.25);
  transition: 0.25s;
}

.foro-btn:hover {
  background: #2f6f46;
  transform: scale(1.05);
}

.cta {
  text-align: center;
  margin: 40px 0 60px;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 200;
}

.overlay img {
  max-width: 90%;
  max-height: 80%;
  border-radius: 10px;
}

.gallery {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}


footer {
  background: var(--celeste);
  padding: 20px;
  font-size: 11px;
  text-align: center;
}

/* --- MENÚ RESPONSIVE --- */

@media (max-width: 800px) {
  nav.menu {
    position: absolute;
    top: 90px;
    right: 0;
    background: #fff;
    flex-direction: column;
    width: 100%;
    display: none; 
    padding: 15px 0;
    border-bottom: 3px solid var(--verde);
    z-index: 100;
  }

  nav.menu a {
    margin: 10px 0;
    display: block;
    text-align: center;
  }

  .menu-toggle {
    display: block; 
  }

  nav.menu.show {
    display: flex;
  }
}


@media (max-width: 900px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .gallery {
    grid-template-columns: 1fr;
  }
}