:root{
  --bg: #000;
  --panel: #0b0b0b;
  --text: #eee;
  --muted: #cfcfcf;
  --accent: #222;
  --thumb-size: 210px;
  --thumb-gap: 1rem;
  --max-gallery-width: 1200px;
  --modal-text-width: 420px;
  --radius: 8px;
}

/* Reset */
* { box-sizing: border-box; margin: 0; padding: 0; }
html,body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  line-height: 1.4;
}

/* Header / nav */
header {
  background: #000000;
  padding: 0.5rem 1rem;
  position: sticky;
  top: 0;
  z-index: 2000; /* menú por encima de logo y fotos */
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.nav-menu {
  list-style:none;
  display:flex;
  justify-content:center;
  gap:1.2rem;
  align-items:center;
}
.nav-menu a {
  padding:0.35rem 0.6rem;
  border-radius:6px;
  color:var(--muted);
  font-weight:500;
  text-decoration:none;
  transition: color 0.3s ease;
}
.nav-menu a:hover,
.nav-menu a:focus {
  color:var(--text);
}

/* Logo */
.logo-container {
  text-align:center;
  margin-top: -60px;    /* acerca el logo a las fotos y al menú */
  margin-bottom: 6px;
  position: relative;
  z-index: 1;           /* debajo del header */
  pointer-events: none; /* deja pasar clics al menú */
}
.logo-container img,
.logo-container a {
  pointer-events: auto; /* logo sigue clickeable si tiene enlace */
}

.logo {
  max-width:320px;
  width:80%;
  height:auto;
  display:inline-block;
}

/* Titles */
.titulo-principal {
  text-align:center;
  font-size:2rem;
  color:var(--muted);
  margin-top:1.5rem;
}

/* Gallery container */
.galeria-miniaturas {
  max-width: var(--max-gallery-width);
  margin: -40px auto; /* acerca la galería al logo */
  padding: 0.5rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.galeria-miniaturas h2 {
  color: var(--muted);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

/* Thumbnails layout */
.miniaturas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--thumb-gap);
  justify-content: center;
  align-items: flex-start;
}

/* Cada foto */
.miniaturas .foto {
  flex: 0 0 var(--thumb-size);
  width: var(--thumb-size);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 6px 18px rgba(0,0,0,0.6);
  transition: transform .18s ease, box-shadow .18s ease;
  display: inline-block;
  cursor: pointer;
  position: relative;
}

.miniaturas img {
  display:block;
  width: var(--thumb-size);
  height: auto;
  border-radius: 6px;
  object-fit: cover;
}

/* Imagen dentro de .foto */
.miniaturas .foto img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Orientaciones */
.miniaturas .foto.horizontal { aspect-ratio: 4 / 3; }
.miniaturas .foto.vertical { aspect-ratio: 3 / 4; }

/* Hover */
.miniaturas .foto:hover,
.miniaturas .foto:focus,
.miniaturas .foto:focus-within {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 30px rgba(0,0,0,0.65);
  outline: none;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: rgba(0,0,0,0.92);
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  overflow-y: auto;
}
.modal.show { display:flex; }

/* Modal content */
.modal-content {
  display: flex;
  max-width: 1500px;
  width: 95vw;
  max-height: 90vh;
  align-items: flex-start;
  gap: 2rem;
  padding: 1rem;
  box-sizing: border-box;
}
.modal-contenido {
  max-width: 1050px;
  width: 100%;
  max-height: 90vh;
  height: auto;
  border-radius: 10px;
  object-fit: contain;
  display: block;
}

/* Text panel */
.modal-texto {
  max-width: 400px;
  width: 100%;
  color: #ccc;
  text-align: left;
  overflow-y: auto;
}
.modal-texto h3 { margin: 0 0 .5rem 0; color: var(--text); font-size: 1.4rem; }
.modal-texto p { margin: 0; font-size: 0.95rem; line-height: 1.4; }

/* Botones cerrar y flechas */
.cerrar {
  position: absolute;
  top: 18px;
  right: 28px;
  color: var(--text);
  font-size: 2.4rem;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
  z-index: 1100;
  background: none;
  border: none;
}
.modal-prev, .modal-next {
  background: none;
  border: none;
  color: var(--text);
  font-size: 2.8rem;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  user-select: none;
  padding: 0.25rem 0.6rem;
  z-index: 1100;
}
.modal-prev { left: 8px; }
.modal-next { right: 8px; }

/* Responsive */
@media (max-width: 900px){
  .modal-content {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  .modal-contenido {
    max-width: 100%;
    max-height: 55vh;
  }
  .modal-texto {
    width: 100%;
    max-width: 100%;
    text-align: center;
  }
  .galeria-miniaturas {
    margin: -25px auto;
  }
}

/* Mobile */
@media (max-width: 600px){
  :root { --thumb-size: 150px; }

  .nav-menu { gap: 1rem; flex-wrap: wrap; }
  .logo { max-width: 120px; }

  .logo-container {
    margin-top: -40px;
    margin-bottom: 4px;
  }

  .galeria-miniaturas {
    margin: -18px auto;
  }
}