* {
       margin: 0;
       padding: 0;
       box-sizing: border-box;
       font-family: 'Arial', sans-serif;
   }
   
   body {
       background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
       height: 100vh;
       display: flex;
       justify-content: center;
       align-items: center;
       overflow: hidden;
   }
   
   .login-container {
       position: relative;
       width: 400px;
       background: rgba(255, 255, 255, 0.1);
       backdrop-filter: blur(10px);
       border-radius: 20px;
       padding: 40px;
       box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
       z-index: 10;
       overflow: hidden;
       animation: fadeIn 0.8s ease-out;
   }
   
   .login-container::before {
       content: '';
       position: absolute;
       top: -50%;
       left: -50%;
       width: 200%;
       height: 200%;
       background: linear-gradient(
           to bottom right,
           rgba(255, 255, 255, 0.1) 0%,
           rgba(255, 255, 255, 0) 50%
       );
       transform: rotate(30deg);
       z-index: -1;
   }
   
   h2 {
       color: #fff;
       text-align: center;
       margin-bottom: 30px;
       font-size: 28px;
       font-weight: 600;
       letter-spacing: 1px;
   }
   
   .input-group {
       position: relative;
       margin-bottom: 30px;
   }
   
   .input-group input {
       width: 100%;
       padding: 15px 20px;
       background: rgba(255, 255, 255, 0.1);
       border: none;
       border-radius: 50px;
       color: #fff;
       font-size: 16px;
       outline: none;
       transition: all 0.3s ease;
   }
   
   .input-group input:focus {
       background: rgba(255, 255, 255, 0.2);
       box-shadow: 0 0 10px rgba(0, 195, 255, 0.5);
   }
   
   .input-group label {
       position: absolute;
       top: 15px;
       left: 20px;
       color: rgba(255, 255, 255, 0.7);
       font-size: 16px;
       pointer-events: none;
       transition: all 0.3s ease;
   }
   
   .input-group input:focus + label,
   .input-group input:valid + label {
       top: -10px;
       left: 15px;
       font-size: 12px;
       background: #2a5298;
       padding: 0 10px;
       color: #fff;
       border-radius: 10px;
   }
   
   button {
       width: 100%;
       padding: 15px;
       background: linear-gradient(to right, #00c6ff, #0072ff);
       border: none;
       border-radius: 50px;
       color: white;
       font-size: 16px;
       font-weight: 600;
       cursor: pointer;
       transition: all 0.3s ease;
       box-shadow: 0 5px 15px rgba(0, 114, 255, 0.4);
   }
   
   button:hover {
       transform: translateY(-3px);
       box-shadow: 0 8px 20px rgba(0, 114, 255, 0.6);
   }
   
   .footer {
       text-align: center;
       margin-top: 20px;
       color: rgba(255, 255, 255, 0.7);
       font-size: 14px;
   }
   
   .footer a {
       color: #00c6ff;
       text-decoration: none;
       transition: all 0.3s ease;
   }
   
   .footer a:hover {
       color: #fff;
       text-decoration: underline;
   }
   
   .bubbles {
       position: absolute;
       width: 100%;
       height: 100%;
       z-index: 1;
       overflow: hidden;
       top: 0;
       left: 0;
   }
   
   .bubble {
       position: absolute;
       bottom: -100px;
       background: rgba(255, 255, 255, 0.1);
       border-radius: 50%;
       animation: rise 10s infinite ease-in;
   }
   
   .bubble:nth-child(1) {
       width: 40px;
       height: 40px;
       left: 10%;
       animation-duration: 8s;
   }
   
   .bubble:nth-child(2) {
       width: 20px;
       height: 20px;
       left: 20%;
       animation-duration: 5s;
       animation-delay: 1s;
   }
   
   .bubble:nth-child(3) {
       width: 50px;
       height: 50px;
       left: 35%;
       animation-duration: 7s;
       animation-delay: 2s;
   }
   
   .bubble:nth-child(4) {
       width: 80px;
       height: 80px;
       left: 50%;
       animation-duration: 11s;
       animation-delay: 0s;
   }
   
   .bubble:nth-child(5) {
       width: 35px;
       height: 35px;
       left: 55%;
       animation-duration: 6s;
       animation-delay: 1s;
   }
   
   .bubble:nth-child(6) {
       width: 45px;
       height: 45px;
       left: 65%;
       animation-duration: 8s;
       animation-delay: 3s;
   }
   
   .bubble:nth-child(7) {
       width: 25px;
       height: 25px;
       left: 75%;
       animation-duration: 7s;
       animation-delay: 2s;
   }
   
   .bubble:nth-child(8) {
       width: 80px;
       height: 80px;
       left: 80%;
       animation-duration: 6s;
       animation-delay: 1s;
   }
   
   @keyframes rise {
       0% {
           bottom: -100px;
           transform: translateX(0);
       }
       50% {
           transform: translateX(100px);
       }
       100% {
           bottom: 1080px;
           transform: translateX(-200px);
       }
   }
   
   @keyframes fadeIn {
       from {
           opacity: 0;
           transform: translateY(20px);
       }
       to {
           opacity: 1;
           transform: translateY(0);
       }
   }