body {
          margin: 0;
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #c6e2ff 0%, #ffffff 100%);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh; 
    scroll-behavior: smooth;
    display: flex; 
    flex-direction: column; 
    }

    
    body::before {
      content: "";
      position: fixed;
      top: 0; left: 0; right: 0; bottom: 0;
      pointer-events: none;
      background-image: url('data:image/svg+xml;utf8,<svg fill="%230077cc" fill-opacity="0.05" height="100" width="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40"/></svg>');
      background-repeat: repeat;
      background-position: center;
      background-size: 150px 150px;
      z-index: -1;
      animation: moveBackground 30s linear infinite;
    }
    @keyframes moveBackground {
      0% { background-position: 0 0; }
      100% { background-position: 100% 100%; }
    }

    
    header {
      background: linear-gradient(90deg, #007acc, #3399ff);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 20px;
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      position: relative;
      z-index: 10;
      animation: slideInDown 1s ease forwards;
    }
    @keyframes slideInDown {
      from { transform: translateY(-100%); opacity: 0; }
      to { transform: translateY(0); opacity: 1; }
    }

    
    .logo img {
      height: 100px;
      width: 100px;
      border-radius: 50%;
      border: 2px solid #ccc;
      object-fit: cover;
      box-shadow: 0 4px 8px rgba(0,0,0,0.2);
      transition: transform 0.6s ease-in-out;
      cursor: pointer;
      filter: drop-shadow(0 0 5px #3399ff);
      will-change: transform;
    }
    .logo img:hover {
      transform: rotate(-10deg) scale(1.15);
      filter: drop-shadow(0 6px 8px rgba(0,0,0,0.3));
    }

    
    .title {
      flex-grow: 1;
      text-align: center;
      font-size: 28px;
      font-weight: 900;
      color: #ffffff;
      text-shadow:
        0 0 6px rgba(51, 153, 255, 0.7),
        0 0 12px rgba(0, 122, 204, 0.7),
        0 0 20px rgba(0, 122, 204, 0.5);
    }

    
    .login-button {
      background-color: #005f99;
      color: #fff;
      border: 2px solid #035486;
      padding: 10px 20px;
      font-size: 16px;
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: visible;
      box-shadow:
        0 4px 10px rgba(0, 95, 153, 0.5),
        inset 0 -3px 6px rgba(255,255,255,0.2);
      transition:
        background-color 0.4s ease,
        box-shadow 0.4s ease,
        transform 0.3s ease;
      font-weight: bold;
      display: flex;
      align-items: center;
      gap: 6px;
      user-select: none;
    }
    .login-button:hover {
      background-color: #0d6aa3;
      border-color: #66c2ff;
      box-shadow:
        0 6px 14px rgba(13, 106, 163, 0.8),
        inset 0 3px 8px rgba(255, 255, 255, 0.3);
      transform: translateY(-3px);
    }
    .login-button a {
      color: white;
      text-decoration: none;
      flex-grow: 1;
      user-select: none;
    }
    
    .login-button:hover::after {
      content: '🐾';
      position: absolute;
      top: -10px;
      right: -12px;
      font-size: 24px;
      animation: pawBounce 0.8s ease infinite;
    }
    @keyframes pawBounce {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-8px); }
    }

   
    main {
      flex-grow: 1; 
    padding: 40px 20px;
    max-width: 900px;
    margin: 50px auto 100px;
    background-color: #ffffffdd;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
    animation: fadeInUp 1s ease forwards;
    position: relative;
    z-index: 5;
    }
    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .info-section {
      margin-bottom: 40px;
      padding: 20px;
      border-radius: 12px;
      background: linear-gradient(135deg, #e0f2ff, #ffffff);
      box-shadow: 0 3px 10px rgba(0, 122, 204, 0.15);
      transition: box-shadow 0.3s ease, background-color 0.3s ease;
    }
    .info-section:hover {
      box-shadow: 0 6px 25px rgba(0, 122, 204, 0.3);
      background-color: #d4eaff;
    }
    .info-section h2 {
      color: #0077b6;
      margin-bottom: 15px;
      font-weight: 700;
      border-left: 6px solid #0077b6;
      padding-left: 12px;
      position: relative;
      transition: color 0.4s ease;
      user-select: none;
    }
    .info-section h2::after {
      content: '';
      position: absolute;
      left: 15px;
      bottom: -10px;
      width: 50px;
      height: 6px;
      background: linear-gradient(90deg, #0077b6, #3399ff);
      border-radius: 4px;
      box-shadow: 0 0 12px #3399ff;
      opacity: 0.9;
      transition: width 0.4s ease;
    }
    .info-section h2:hover {
      color: #005f99;
      cursor: default;
    }
    .info-section p {
      font-size: 17px;
      line-height: 1.7;
      color: #2a2a2a;
      padding: 12px;
      border-radius: 8px;
      
      
      transition: background-color 0.3s ease;
      user-select: none;
    }
  

    
    footer {
      position: relative;
      z-index: 10;
      padding: 40px 20px;
      background: linear-gradient(135deg, #004d80, #007acc);
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      color: #fafafa;
      text-align: center;
      border-radius: 15px 15px 0 0;
      animation: slideUp 1s ease forwards;
    }
    @keyframes slideUp {
      from { transform: translateY(100%); opacity: 0; }
      to { transform: translateY(0); opacity: 1; }
    }
    footer h3 {
      margin: 0 0 10px;
      font-size: 26px;
      font-weight: 800;
      user-select: none;
      text-shadow:
        0 0 8px rgba(255,255,255,0.7);
    }
    footer p {
      margin: 10px 0;
      font-size: 20px;
      font-weight: 600;
      letter-spacing: 0.04em;
      user-select: text;
      color: #d6d6d6;
      text-shadow:
        0 0 4px rgba(0,0,0,0.4);
    }

    
    .footer-note {
      margin-top: 20px;
      font-weight: bold;
      font-size: 14px;
      color: #ddd;
      user-select: none;
    }

    
    .floating-dog {
      position: fixed;
      width: 120px;
      opacity: 0.85;
      animation: floatUpDown 8s ease-in-out infinite;
      will-change: transform;
      user-select: none;
      pointer-events: none;
      filter: drop-shadow(0 4px 4px rgba(0,0,0,0.2));
      z-index: 1;
    }
    .floating-dog img {
      width: 100%;
      height: auto;
      border-radius: 20px;
      box-shadow: 0 6px 18px rgba(0,0,0,0.15);
      transition: transform 0.3s ease;
    }
    .floating-dog img:hover {
      transform: scale(1.1) rotate(5deg);
      cursor: default;
      filter: drop-shadow(0 10px 10px rgba(0,0,0,0.3));
    }
    @keyframes floatUpDown {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-30px); }
    }
    
    .floating-dog.dog1 {
      top: 15vh;
      left: 3vw;
      animation-delay: 0s;
    }
    .floating-dog.dog2 {
      top: 60vh;
      right: 4vw;
      animation-delay: 2s;
      width: 90px;
    }
    .floating-dog.dog3 {
      top: 40vh;
      left: 50vw;
      animation-delay: 4s;
      width: 110px;
    }
    .floating-dog.dog4 {
      top: 75vh;
      left: 30vw;
      animation-delay: 6s;
      width: 80px;
    }

    
    @media (max-width: 600px) {
      .login-button {
        width: 100%;
        font-size: 18px;
      }
      .title {
        font-size: 24px;
      }
      main {
        padding: 30px 15px;
        margin: 40px 10px 80px;
      }
      .floating-dog {
        display: none; 
      }
      .ref{
        text-decoration: none;
      }
      .ref:hover{
        text-decoration: underline;
      }
     
    }