:root {
  --turquesa: #1196a6;
  --celeste: #9bb7b9;
  --lila-claro: #8d6c8c;
  --lila-oscuro: #5e4b7a;
  --azul-noche: #0a1b2b;
  --blanco: #fff;
  --gris: #f5f7fa;
  --sombra: 0 4px 24px rgba(10,27,43,0.10);
}

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', 'Arial', sans-serif;
  background: linear-gradient(135deg, var(--turquesa) 0%, var(--lila-claro) 100%);
  min-height: 100vh;
  color: var(--azul-noche);
}

.header {
  background: var(--azul-noche);
  padding: 40px 0 20px 0;
  text-align: center;
  box-shadow: var(--sombra);
  position: relative;
  z-index: 2;
  border-bottom-left-radius: 30px;
  border-bottom-right-radius: 30px;
  animation: fadeInDown 1s;
}

.header h1 {
  font-size: 2.5em;
  margin: 0;
  letter-spacing: 2px;
  color: var(--turquesa);
  text-shadow: 0 2px 8px var(--azul-noche);
  animation: popIn 1.2s;
}

.header p {
  color: var(--celeste);
  font-size: 1.1em;
  margin-top: 10px;
  letter-spacing: 1px;
  animation: fadeIn 2s;
}

.nav-menu {
  margin-top: 18px;
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-link, .logout-btn {
  background: var(--lila-oscuro);
  color: var(--blanco);
  border: none;
  padding: 10px 22px;
  border-radius: 20px;
  font-size: 1em;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(10,27,43,0.10);
  text-decoration: none;
  font-weight: 500;
  transition: background 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.nav-link:hover, .logout-btn:hover {
  background: var(--turquesa);
  color: var(--blanco);
  transform: scale(1.06);
}

.categories-bar {
  background: var(--gris);
  padding: 15px 0;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  white-space: nowrap;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  justify-content: center;
}

.category-btn {
  padding: 8px 18px;
  border-radius: 20px;
  text-decoration: none;
  color: var(--azul-noche);
  background: var(--blanco);
  border: 1px solid var(--celeste);
  font-weight: 500;
  transition: all 0.2s;
  margin-bottom: 2px;
}
.category-btn.active, .category-btn:hover {
  background: var(--turquesa);
  color: var(--blanco);
  border-color: var(--turquesa);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  padding: 40px 5vw 40px 5vw;
  animation: fadeInUp 1.2s;
}

.photo-card {
  background: var(--blanco);
  border-radius: 18px;
  box-shadow: var(--sombra);
  overflow: hidden;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  min-height: 260px;
}
.photo-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 12px 32px rgba(17,150,166,0.18);
}

.photo-square {
  width: 100%;
  aspect-ratio: 1/1;
  background: var(--gris);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.photo-square img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.photo-card:hover .photo-square img {
  transform: scale(1.07);
}

.photo-footer {
  padding: 16px 16px 12px 16px;
  background: linear-gradient(120deg, var(--lila-claro) 60%, var(--celeste) 100%);
  color: var(--azul-noche);
  border-bottom-left-radius: 18px;
  border-bottom-right-radius: 18px;
  min-height: 60px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.photo-footer h3 {
  margin: 0;
  font-size: 1.1em;
  color: var(--azul-noche);
  font-weight: bold;
  letter-spacing: 1px;
  text-align: center;
}

.modal {
  display: none;
  position: fixed;
  z-index: 100;
  left: 0; top: 0; width: 100vw; height: 100vh;
  background: rgba(10,27,43,0.85);
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.5s;
}
.modal-content {
  background: var(--blanco);
  padding: 32px 28px;
  border-radius: 18px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 8px 32px rgba(17,150,166,0.18);
  animation: popIn 0.7s;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.modal .close {
  position: absolute;
  top: 18px; right: 28px;
  color: var(--lila-oscuro);
  font-size: 32px;
  font-weight: bold;
  cursor: pointer;
  z-index: 101;
  transition: color 0.2s;
}
.modal .close:hover {
  color: var(--turquesa);
}
.modal.active {
  display: flex;
}

#modal-img {
  width: 100%;
  max-width: 350px;
  max-height: 350px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 4px 24px rgba(10,27,43,0.2);
  margin-bottom: 18px;
}

#modal-id, #modal-lugar {
  font-weight: 600;
  color: var(--lila-oscuro);
}

@media (max-width: 700px) {
  .gallery {
    grid-template-columns: 1fr 1fr;
    padding: 20px 2vw;
    gap: 14px;
  }
  .header {
    padding: 28px 0 12px 0;
  }
  .modal-content {
    padding: 18px 6vw;
  }
  #modal-img {
    max-width: 90vw;
    max-height: 40vw;
  }
}
@media (max-width: 480px) {
  .gallery {
    grid-template-columns: 1fr;
  }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-40px);}
  to { opacity: 1; transform: translateY(0);}
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px);}
  to { opacity: 1; transform: translateY(0);}
}
@keyframes fadeIn {
  from { opacity: 0;}
  to { opacity: 1;}
}
@keyframes popIn {
  0% { transform: scale(0.7);}
  80% { transform: scale(1.1);}
  100% { transform: scale(1);}
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
  padding: 40px 5vw 40px 5vw;
  background: transparent;
}

.photo-card {
  background: var(--blanco);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.2s;
  box-shadow: 0 2px 8px rgba(10,27,43,0.06);
  position: relative;
  aspect-ratio: 1/1;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
}

.photo-card:hover {
  box-shadow: 0 8px 24px rgba(17,150,166,0.13);
  transform: translateY(-4px) scale(1.03);
}

.photo-square {
  width: 100%;
  height: 100%;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gris);
  overflow: hidden;
}

.photo-square img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.photo-card:hover .photo-square img {
  transform: scale(1.07);
}

.photo-footer {
  display: none; /* Oculta el título debajo, como en Facebook */
}

@media (max-width: 900px) {
  .gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 600px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 20px 2vw;
  }
}
@media (max-width: 400px) {
  .gallery {
    grid-template-columns: 1fr;
  }
}