.dropdown-menu {
  border-radius: 0.25rem;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15); }

body {
  font-family: 'Roboto', 'Noto Sans TC', sans-serif; }

.navbar {
  padding: 0.5rem 1rem; }
  .navbar.justify-content-center {
    padding: 1rem;
    background-color: #f8f9fa; }
    .navbar.justify-content-center .navbar-brand {
      font-size: 1.8rem;
      font-weight: 700; }
      .navbar.justify-content-center .navbar-brand img {
        max-height: 50px; }
  .navbar.border-top {
    border-color: #dee2e6 !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05); }
    .navbar.border-top .nav-link {
      color: #343a40;
      font-weight: 500;
      padding: 0.8rem 1rem;
      transition: color 0.2s ease-in-out; }
      .navbar.border-top .nav-link:hover, .navbar.border-top .nav-link:focus {
        color: #007bff; }
    .navbar.border-top .dropdown-menu {
      border-radius: 0.5rem;
      box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15); }

.avatar-container {
  display: flex;
  align-items: center;
  justify-content: center; }
  .avatar-container img {
    object-fit: cover;
    border: 2px solid #fff;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease-in-out; }
    .avatar-container img:hover {
      transform: scale(1.05);
      border-color: #007bff; }

.user-dropdown-toggle {
  cursor: pointer;
  padding: 0.4rem 0.8rem;
  border-radius: 2rem;
  transition: background-color 0.2s ease; }
  .user-dropdown-toggle:hover, .user-dropdown-toggle:focus {
    background-color: rgba(0, 0, 0, 0.05); }
    .user-dropdown-toggle:hover img, .user-dropdown-toggle:focus img {
      transform: scale(1.05);
      border-color: #007bff; }
    .user-dropdown-toggle:hover .nav-link, .user-dropdown-toggle:hover .dropdown-toggle, .user-dropdown-toggle:focus .nav-link, .user-dropdown-toggle:focus .dropdown-toggle {
      color: #007bff; }
  .user-dropdown-toggle .nav-link {
    padding: 0;
    margin: 0;
    display: inline-block; }
    .user-dropdown-toggle .nav-link.dropdown-toggle::after {
      vertical-align: middle; }

.navbar .dropdown-menu {
  margin-top: 0.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15); }
  .navbar .dropdown-menu .dropdown-item {
    padding: 0.5rem 1rem; }
    .navbar .dropdown-menu .dropdown-item:hover, .navbar .dropdown-menu .dropdown-item:focus {
      background-color: rgba(0, 123, 255, 0.1); }

.navbar .nav-item.dropdown {
  transition: background-color 0.2s ease; }
  .navbar .nav-item.dropdown .nav-link {
    display: inline-block;
    transition: color 0.2s ease; }

/* 首頁樣式 */
.hero {
  background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.hero .display-4 {
  font-weight: 800;
  letter-spacing: -0.5px;
}

.hero .lead {
  font-weight: 300;
  font-size: 1.4rem;
}

.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
}

.card.show {
  opacity: 1;
  transform: translateY(0);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1) !important;
}

.language-switcher .form-select {
  background-color: transparent;
  border-color: rgba(108, 117, 125, 0.3);
  font-size: 0.875rem;
  padding: 0.25rem 2rem 0.25rem 0.5rem;
  border-radius: 3rem;
}

.language-switcher .form-select:focus {
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
  border-color: #0d6efd;
}

/* Embedder Module Styles */
.embedder-section .train-button {
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  font-weight: 500;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  border: none;
}

.embedder-section .train-button:enabled {
  background: linear-gradient(135deg, #ff9900 0%, #ff7300 100%);
  color: white;
}

.embedder-section .train-button:enabled:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  background: linear-gradient(135deg, #ffad33 0%, #ff8c00 100%);
}

.embedder-section .train-button:enabled:active {
  transform: translateY(1px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 脈衝動畫 */
.embedder-section .btn-pulse {
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 153, 0, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(255, 153, 0, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 153, 0, 0);
  }
}

/* 文檔列表樣式 */
.embedder-section .document-row.selected {
  background-color: rgba(255, 248, 230, 0.7);
}

.embedder-section .document-row:hover {
  background-color: rgba(240, 248, 255, 0.5);
}

.embedder-section .selector-cell {
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
}

.embedder-section .document-title {
  cursor: pointer;
  font-weight: 500;
}

.embedder-section .document-title:hover {
  text-decoration: underline;
}