/* ==================== */
/* Reset y body */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f4f4f4;
  color: #333;
  line-height: 1.6;
  font-size: clamp(0.95rem, 1vw + 0.5rem, 1.1rem);
}

/* ==================== */
/* Consejos */
.consejo {
  background-color: #e0f7fa;
  border-left: 5px solid #00acc1;
  padding: 15px 20px;
  margin-bottom: 20px;
  border-radius: 5px;
  text-align: center;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==================== */
/* Contenedor del conversor */
.convert-container {
  background-color: #fff;
  border: 1px solid #ccc;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  max-width: 100%;
  width: 90%;
  margin: 0 auto 40px auto;
  text-align: center;
}

.convert-container input[type="file"],
.convert-container input[type="text"] {
  margin: 10px 0;
  padding: 10px;
  width: 100%;
  border: 1px solid #ccc;
  border-radius: 5px;
}

/* ==================== */
/* Vista previa */
#preview {
  margin: 20px 0;
  width: 100%;
  max-width: 100%;
  border-radius: 5px;
  height: auto;
}

/* ==================== */
/* Botón de descarga */
#download {
  background-color: #00acc1;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#download:hover {
  background-color: #008b9a;
}

/* ==================== */
/* Formulario galería */
.galeria {
  background-color: #fff;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  max-width: 100%;
  width: 90%;
  margin: 0 auto;
}

.galeria h1 {
  margin-bottom: 20px;
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  text-align: center;
}

.galeria label {
  display: block;
  margin-top: 15px;
  font-weight: bold;
}

.galeria input[type="text"],
.galeria textarea,
.galeria input[type="file"] {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border-radius: 8px;
  border: 1px solid #ccc;
}

/* ==================== */
/* Agrupador de archivos */
.file-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

/* ==================== */
/* Botón agregar imagen */
#agregarImagenBtn {
  background-color: #4caf50;
  color: white;
  border: none;
  font-size: 1.2rem;
  padding: 0 12px;
  border-radius: 8px;
  cursor: pointer;
}

#agregarImagenBtn:hover {
  background-color: #388e3c;
}

/* ==================== */
/* Botón enviar */
.galeria button[type="submit"] {
  margin-top: 20px;
  background-color: #1976d2;
  color: white;
  padding: 12px;
  width: 100%;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
}

.galeria button[type="submit"]:hover {
  background-color: #0d47a1;
}

/* ==================== */
/* Publicaciones */
.publicacion {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  padding: 20px;
  margin: 30px auto;
  max-width: 100%;
  width: 95%;
  transition: transform 0.3s ease;
}

.publicacion:hover {
  transform: scale(1.01);
}

.publicacion h2 {
  color: #00acc1;
  margin-bottom: 10px;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
}

.publicacion p {
  font-size: clamp(0.9rem, 1vw + 0.3rem, 1rem);
  margin: 10px 0;
}

.publicacion small {
  display: block;
  color: #666;
  margin-top: 10px;
}

/* ==================== */
/* Galería de imágenes */
.imagenes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 15px;
}

.imagenes img {
  width: calc(33.333% - 10px);
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  transition: transform 0.2s ease-in-out;
  cursor: pointer;
  height: auto;
}

/* ==================== */
/* Modal imagen ampliada */
#modalImagen {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.8);
  justify-content: center;
  align-items: center;
  cursor: zoom-out;
}

#modalImagen img {
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  border-radius: 8px;
  box-shadow: 0 0 30px #000;
  object-fit: contain;
}

#modalCerrar {
  position: fixed;
  top: 20px;
  right: 30px;
  font-size: 30px;
  color: white;
  cursor: pointer;
  font-weight: bold;
  user-select: none;
  z-index: 10000;
}

/* ==================== */
/* Encabezado */
.encabezado-logo {
  display: flex;
  align-items: center;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.logo {
  width: clamp(80px, 10vw, 120px);
  height: auto;
  border-radius: 8px;
}

h1 {
  text-align: center;
  color: #1a2561;
  margin-bottom: 30px;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

/* ==================== */
/* Responsive */
@media (max-width: 1024px) {
  .imagenes img {
    width: calc(50% - 10px);
  }
}

@media (max-width: 768px) {
  .imagenes img {
    width: 100%;
  }

  .file-group {
    flex-direction: column;
    align-items: stretch;
  }

  .convert-container,
  .galeria,
  .publicacion {
    padding: 20px;
    width: 95%;
  }
}

@media (max-width: 480px) {
  .galeria h1,
  .convert-container h1,
  h1 {
    font-size: 1.2rem;
  }

  .publicacion p {
    font-size: 0.9rem;
  }

  .file-group {
    gap: 5px;
  }
}

@media (max-width: 768px) {
  /* Header */
  .encabezado {
    flex-direction: column;
    align-items: center;
    padding: 20px 10px;
  }
  .encabezado-logo h1 {
    font-size: 20px;
    text-align: center;
    margin: 10px 0 0 0;
  }
  .menu-action ul {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
  .menu-action li a {
    font-size: 16px;
  }

  /* Texto e Imagen */
  .text-section,
  .image-section {
    flex: 1 1 100%;
    height: auto;
  }
  .text-section {
    padding: 30px 20px;
  }
  .heading {
    font-size: 32px;
  }
  .subtitle {
    font-size: 16px;
  }
  .image-section img {
    height: auto;
    object-fit: contain;
  }
}

/* Pantallas medianas - Tablets */
@media (min-width: 769px) and (max-width: 1024px) {
  /* Header */
  .encabezado {
    flex-wrap: wrap;
    padding: 20px 15px;
  }
  .encabezado-logo h1 {
    font-size: 22px;
  }
  .menu-action li a {
    font-size: 17px;
  }

  /* Texto e Imagen */
  .text-section,
  .image-section {
    flex: 1 1 48%;
  }
  .text-section {
    padding: 35px;
  }
  .heading {
    font-size: 36px;
  }
  .subtitle {
    font-size: 18px;
  }
}