.snowflake {
    position: fixed;
    top: -20px;
    /* Đổi thành màu trắng */
    color: #ffffff; 
    /* Thêm viền bóng tối để nhìn thấy tuyết trên nền web trắng */
    text-shadow: 0 0 3px rgba(0, 0, 0, 0.8); 
    z-index: 99998;
    pointer-events: none;
    user-select: none;
    font-family: Arial, sans-serif;
    animation-name: fall;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
  }

  @keyframes fall {
    0% { transform: translateY(0) translateX(0); }
    100% { transform: translateY(105vh) translateX(20px); }
 }
.dropdown-menu .dropdown-item:hover {
      background-color: #0d6efd;
      color: #fff;
    }

    .dropdown-menu .dropdown-item:hover i {
      color: #fff;
    }

    body {
      padding: 2rem;
      background: #fff;
      color: #000;
      position: relative;
      z-index: 1;
    }

    .logo {
      max-height: 60px;
    }
      .search-row {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
      margin-bottom: 20px;
      position: relative;
      z-index: 2;
    }
     canvas {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
      }
      
    #copyToast {
      position: fixed;
      top: 1rem;
      left: 50%;
      transform: translateX(-50%);
      background: rgba(0, 0, 0, 0.75);
      color: #fff;
      padding: 0.5rem 1rem;
      border-radius: 0.25rem;
      font-size: 0.875rem;
      opacity: 0;
      transition: opacity 0.3s ease-in-out;
      z-index: 1055;
    }

    #copyToast.show {
      opacity: 1;
    }

    .header-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 1.5rem;
    }

    #fuelPrices {
      min-width: 0;
      overflow: hidden;
    }

    .table-responsive {
      overflow-x: auto;
    }

    .result-span {
      display: block;
      width: 100%;
      padding: .5rem;
      background: #f8f9fa;
      border: 1px solid #dee2e6;
      border-radius: 4px;
      word-break: break-word;
      white-space: normal;
      line-height: 1.4;
      font-size: .95rem;
    }

    .copy-btn {
      font-size: 1.2rem;
      height: fit-content;
      padding: 0.25rem 0.5rem;
      display: flex;
      align-items: center;
    }

    .copy-btn:hover .bi-clipboard {
      color: #0d6efd;
    }

    .copy-btn .bi-clipboard-check-fill {
      color: #28a745;
    }

    .copy-btn .bi {
      transition: all 0.3s ease;
    }

    .progress {
      background-color: #e9ecef;
      height: 20px;
      margin-bottom: 1rem;
    }

    .progress-bar {
      background-color: #28a745 !important;
    }

    #div-sys-msg {
      background-color: white;
      color: red;
      height: 20px;
      font-size: 16px;
      line-height: 20px;
      text-align: center;
      width: 100%;
    }

    #div-sys-msg-mst {
      background-color: #ffd6d6;
      color: #ff0000;
      height: 20px;
      font-size: 16px;
      line-height: 20px;
      text-align: center;
      width: 100%;
      position: fixed;
    }

    #stationSuggestList {
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background: #fff;
      border: 1px solid #ddd;
      z-index: 10000;
      max-height: 180px;
      overflow-y: auto;
      border-radius: 0 0 6px 6px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }

    #stationSuggestList div {
      padding: 6px 12px;
      cursor: pointer;
    }

    #stationSuggestList div:hover {
      background: #f0f4fa;
    }

    #openQrModal {
      background: linear-gradient(270deg, #e74c3c, #f1c40f, #2ecc71, #3498db, #9b59b6, #e74c3c);
      background-size: 1200% 1200%;
      animation: rainbowMove 3s linear infinite;
      color: #fff;
      border: none;
      transition: box-shadow 0.2s;
    }

    #cornerNotification {
      position: fixed;
      bottom: 190px;
      right: 20px;
      z-index: 3000;
      background: #fff3cd;
      color: #856404;
      border: 1px solid #ffeeba;
      border-radius: 8px;
      padding: 14px 16px 16px 16px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
      max-width: 300px;
      font-size: 14px;
    }

    #cornerNotification button {
      position: absolute;
      top: 6px;
      right: 8px;
      background: transparent;
      border: none;
      font-size: 16px;
      color: #856404;
      cursor: pointer;
    }

    #cornerNotification h6 {
      font-weight: bold;
      margin-bottom: 10px;
      padding-right: 20px;
    }

    #cornerNotificationMinimized {
      display: none;
      position: fixed;
      bottom: 168px;
      right: 3px;
      z-index: 3000;
      cursor: pointer;
    }

    #cornerNotificationMinimized>div {
      width: 48px;
      height: 48px;
      background: #1976d2;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }

    #cornerNotificationMinimized i {
      font-size: 1.4rem;
      color: white;
    }

    @media (max-width: 768px) {
      .header-row {
        flex-direction: column;
        align-items: flex-start;
      }

      #fuelPrices {
        width: 100%;
        margin-top: 1rem;
        order: 1;
      }

      #fuelTable caption {
        font-size: 0.6rem !important;
      }

      #fuelTable th,
      #fuelTable td {
        font-size: 0.5rem !important;
      }
    }

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }

      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @keyframes fadeInOut {
      0% {
        opacity: 0;
        transform: translateY(10px);
      }

      15% {
        opacity: 1;
        transform: translateY(0);
      }

      85% {
        opacity: 1;
        transform: translateY(0);
      }

      100% {
        opacity: 0;
        transform: translateY(10px);
      }
    }

    @keyframes rainbowMove {
      0% {
        background-position: 0% 50%;
      }

      100% {
        background-position: 100% 50%;
      }
    }
@keyframes borderGlow {
      0% {
        border-color: #ff4d4d;
        box-shadow: 0 0 5px #ff4d4d;
      }

      25% {
        border-color: #ffa64d;
        box-shadow: 0 0 10px #ffa64d;
      }

      50% {
        border-color: #4dff4d;
        box-shadow: 0 0 15px #4dff4d;
      }

      75% {
        border-color: #4dd2ff;
        box-shadow: 0 0 10px #4dd2ff;
      }

      100% {
        border-color: #ff4d4d;
        box-shadow: 0 0 5px #ff4d4d;
      }
    }

    #addProvince.form-check-input {
      border-width: 2px;
      animation: borderGlow 3s ease-in-out infinite;
      transition: transform 0.2s ease;
    }

    #addProvince.form-check-input:hover {
      transform: scale(1.2);
    }