/* Variables de colores */
:root {
  --viewer-color: #2196f3;
  --chat-color: #4caf50;
  --results-color: #ff9800;
  --navbar-bg-color: #ffffff;
  --navbar-link-color: #333333;
  --navbar-link-hover-color: #2196f3;
  --footer-bg-color: #f8f9fa;
  --footer-text-color: #333333;
  --footer-border-color: #e1e1e1;
  --main-bg-color: #f5f7fa;
  --card-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  --border-radius: 8px;
  --text-color: #333333;
  --card-bg-color: #ffffff;
  --dropdown-bg-color: #f0f2f5;
  --dropdown-text-color: #333333;
  --dropdown-border-color: #e1e1e1;
  --input-bg-color: #ffffff;
  --input-text-color: #333333;
  --input-border-color: #ced4da;
  --input-focus-border-color: #80bdff;
  --input-focus-shadow-color: rgba(0, 123, 255, 0.25);
}

/* Variables para el modo oscuro */
[data-theme="dark"] {
  --viewer-color: #2196f3;
  --chat-color: #4caf50;
  --results-color: #ff9800;
  --navbar-bg-color: #1a1a1a;
  --navbar-link-color: #e1e1e1;
  --navbar-link-hover-color: #2196f3;
  --footer-bg-color: #1a1a1a;
  --footer-text-color: #e1e1e1;
  --footer-border-color: #333333;
  --main-bg-color: #121212;
  --card-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  --text-color: #e1e1e1;
  --card-bg-color: #2a2a2a;
  --dropdown-bg-color: #2a2a2a;
  --dropdown-text-color: #e1e1e1;
  --dropdown-border-color: #444444;
  --input-bg-color: #333333;
  --input-text-color: #e1e1e1;
  --input-border-color: #555555;
  --input-focus-border-color: #0d6efd;
  --input-focus-shadow-color: rgba(13, 110, 253, 0.25);
}

body {
  background-color: var(--main-bg-color);
  font-family: "Roboto", sans-serif;
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Barra de navegación */
.navbar {
  background-color: var(--navbar-bg-color);
  border-bottom: 2px solid var(--viewer-color);
  box-shadow: var(--card-shadow);
  padding: 12px 0;
  transition: background-color 0.3s ease;
}

.navbar-brand {
  font-weight: 700;
  color: var(--viewer-color) !important;
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
}

.navbar-brand svg {
  margin-right: 12px;
  width: 35px;
  height: 35px;
}

.brand-text {
  background: linear-gradient(135deg, #2196f3, #1976d2, #0d47a1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 4px rgba(33, 150, 243, 0.1);
}

/* Dark mode adjustments for brand text */
[data-theme="dark"] .brand-text {
  background: linear-gradient(135deg, #64b5f6, #42a5f5, #2196f3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-nav .nav-link {
  color: var(--navbar-link-color);
  font-weight: 500;
  padding: 8px 15px;
  transition: color 0.3s, transform 0.2s;
}

.navbar-nav .nav-link:hover {
  color: var(--navbar-link-hover-color);
  transform: translateY(-2px);
}

/* Estilos del contenido principal */
main.container-fluid {
  padding: 30px;
  margin-top: 20px;
}

.section-container {
  padding: 20px;
  background-color: var(--card-bg-color);
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  margin-bottom: 30px;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.section-title {
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  color: var(--text-color);
  font-weight: 600;
  transition: color 0.3s ease;
}

.section-icon {
  margin-right: 10px;
  font-size: 1.5rem;
}

/* Footer */
.footer {
  background-color: var(--footer-bg-color);
  padding: 40px 0;
  text-align: center;
  border-top: 2px solid var(--footer-border-color);
  margin-top: 50px;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  transition: background-color 0.3s ease;
}

.footer_container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.main_logo {
  max-width: 200px;
  margin-bottom: 20px;
  transition: transform 0.3s;
}

.main_logo:hover {
  transform: scale(1.05);
}

.footer_images {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 25px;
  margin-top: 30px;
}

.footer_images img {
  max-width: 100px;
  max-height: 60px;
  object-fit: contain;
  transition: transform 0.3s;
  filter: grayscale(30%);
}

.footer_images img:hover {
  transform: scale(1.1);
  filter: grayscale(0%);
}

/* Botones y elementos interactivos */
.btn {
  border-radius: var(--border-radius);
  padding: 8px 20px;
  font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-primary {
  background-color: var(--viewer-color);
  border-color: var(--viewer-color);
}

.btn-success {
  background-color: var(--chat-color);
  border-color: var(--chat-color);
}

.btn-warning {
  background-color: var(--results-color);
  border-color: var(--results-color);
}

/* Botón de cambio de tema */
.theme-toggle-btn {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 15px;
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
  background-color: transparent;
  color: var(--navbar-link-color);
}

.theme-toggle-btn:hover {
  color: var(--navbar-link-hover-color);
  transform: translateY(-2px);
}

.theme-toggle-btn i {
  font-size: 1.2rem;
  margin-right: 5px;
}

/* Estilos para el desplegable de parámetros */
.dropdown-menu {
  background-color: var(--dropdown-bg-color);
  color: var(--dropdown-text-color);
  border-color: var(--dropdown-border-color);
  box-shadow: var(--card-shadow);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.dropdown-menu .form-label {
  color: var(--dropdown-text-color);
  transition: color 0.3s ease;
}

.dropdown-menu .form-control,
.dropdown-menu .form-select {
  background-color: var(--input-bg-color);
  color: var(--input-text-color);
  border-color: var(--input-border-color);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.dropdown-menu .form-control:focus,
.dropdown-menu .form-select:focus {
  border-color: var(--input-focus-border-color);
  box-shadow: 0 0 0 0.25rem var(--input-focus-shadow-color);
}

.dropdown-menu .invalid-feedback {
  color: #dc3545;
}

/* Responsividad */
@media (max-width: 768px) {
  .footer_images {
    gap: 15px;
  }

  .footer_images img {
    max-width: 80px;
    max-height: 50px;
  }

  main.container-fluid {
    padding: 15px;
  }
}