/* Input Card Styles */
.input-card {
    padding: 40px 0;
  }
  .input-card-container {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    padding: 30px;
    max-width: 600px;
    margin: 0 auto;
  }
  .input-card-container .card-title {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
  }
  .input-card-container .input-group {
    display: flex;
    align-items: center;
  }
  .input-card-container .form-control {
    border: 1px solid #ddd;
    border-radius: 5px 0 0 5px;
    padding: 10px;
    flex: 1;
  }
  .input-card-container .btn-primary {
    background-color: var(--primary-color);
    border: none;
    border-radius: 0 5px 5px 0;
    padding: 10px 15px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  .input-card-container .btn-primary:hover {
    background-color: var(--primary-hover-color);
  }
  .reset-btn {
    background-color: var(--primary-color);
    border: none;
    color: #fff;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  .reset-btn:hover {
    background-color: var(--primary-hover-color);
  }
  
  /* Thumbnail Results Styles */
  .thumbnail-results {
    padding: 40px 0;
  }
  .thumbnail-results .section-title {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2rem;
    color: var(--primary-color);
  }
  .thumbnails-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
  }
  .thumbnail-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    text-align: center;
    padding: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .thumbnail-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  }
  .thumbnail-card img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    margin-bottom: 10px;
  }
  .thumbnail-info p {
    font-size: 1rem;
    color: #333;
    margin-bottom: 10px;
  }
  .thumbnail-info button {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  .thumbnail-info button:hover {
    background-color: var(--primary-hover-color);
  }
  /* Introduction Section Styles */
.introduction {
    padding: 60px 0;
    background: linear-gradient(135deg, #f9f9f9, #e9ecef);
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
  }
  .introduction .intro-title {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: left;
  }
  .introduction .intro-text {
    font-size: 1rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 20px;
    text-align: justify;
  }
  .introduction .intro-list {
    list-style-type: none;
    padding-left: 0;
    margin-bottom: 20px;
  }
  .introduction .intro-list li {
    margin-bottom: 10px;
    color: #555;
    display: flex;
    align-items: center;
  }
  .introduction .intro-list li i {
    margin-right: 10px;
    font-size: 1.2rem;
  }
  .introduction .intro-subtitle {
    font-size: 1.6rem;
    color: var(--primary-color);
    margin-top: 30px;
    margin-bottom: 15px;
    text-align: left;
  }
  .intro-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  }
  .introduction a.btn-primary {
    background-color: var(--primary-color);
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
  }
  .introduction a.btn-primary:hover {
    background-color: var(--primary-hover-color);
  }
  @media (max-width: 768px) {
    .introduction .intro-title {
      text-align: center;
    }
    .introduction .intro-subtitle {
      text-align: center;
    }
  }
  /* Message Popup Styles */