body {
      margin: 0;
      font-family: 'Poppins', sans-serif;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      overflow: hidden;
      background: linear-gradient(270deg, #0f2027, #2c5364, #203a43, #0f2027);
      background-size: 800% 800%;
      animation: gradientMove 18s ease infinite;
    }

    @keyframes gradientMove {
      0% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
      100% { background-position: 0% 50%; }
    }

    .login-container {
      background: rgba(255, 255, 255, 0.95);
      padding: 40px 30px;
      border-radius: 20px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.3);
      width: 380px;
      text-align: center;
      position: relative;
      animation: fadeInUp 0.8s ease-in-out;
      z-index: 2;
    }

    .logo-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 15px;
      margin-bottom: 20px;
    }

    .logo-group img {
      width: 70px;
      height: 70px;
      object-fit: contain;
      opacity: 0;
      transform: scale(0.5);
      animation: logoBounce 1s ease forwards;
    }

    .logo-group img:nth-child(1) { animation-delay: 0.2s; }
    .logo-group img:nth-child(2) { animation-delay: 0.5s; }
    .logo-group img:nth-child(3) { animation-delay: 0.8s; }

    @keyframes logoBounce {
      0% { opacity: 0; transform: scale(0.5) translateY(-30px); }
      50% { opacity: 1; transform: scale(1.1) translateY(10px); }
      100% { opacity: 1; transform: scale(1) translateY(0); }
    }

    .login-container h2 {
      margin-bottom: 20px;
      color: #2c5364;
      font-weight: 600;
      font-size: 22px;
    }

    .input-group {
      display: flex;
      align-items: center;
      background: #f1f3f6;
      border-radius: 10px;
      margin: 10px auto;
      padding: 10px;
      width: 80%;
      transition: 0.3s;
    }

    .input-group i {
      color: #2c5364;
      margin-right: 10px;
      font-size: 16px;
    }

    .input-group input {
      border: none;
      outline: none;
      background: transparent;
      flex: 1;
      font-size: 15px;
      text-align: left;
    }

    .input-group:focus-within {
      background: #e6ebff;
      box-shadow: 0 0 8px #2c5364;
    }

    .login-container button {
      width: 100%;
      padding: 12px;
      background: linear-gradient(135deg, #2c5364, #203a43);
      color: white;
      font-size: 16px;
      font-weight: 600;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      margin-top: 20px;
      transition: transform 0.2s, box-shadow 0.2s;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .login-container button:hover {
      transform: translateY(-2px);
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    }

    /* Floating bubbles */
    .bubbles {
      position: absolute;
      width: 100%;
      height: 100%;
      overflow: hidden;
      z-index: 0;
      top: 0;
      left: 0;
    }
    .bubbles span {
      position: absolute;
      bottom: -100px;
      width: 40px;
      height: 40px;
      background: rgba(255,255,255,0.15);
      border-radius: 50%;
      animation: bubble 15s infinite;
    }
    .bubbles span:nth-child(1) { left: 10%; animation-duration: 12s; width: 25px; height: 25px; }
    .bubbles span:nth-child(2) { left: 30%; animation-duration: 18s; }
    .bubbles span:nth-child(3) { left: 50%; animation-duration: 10s; width: 20px; height: 20px; }
    .bubbles span:nth-child(4) { left: 70%; animation-duration: 22s; }
    .bubbles span:nth-child(5) { left: 90%; animation-duration: 16s; width: 35px; height: 35px; }

    @keyframes bubble {
      0% { transform: translateY(0) scale(1); opacity: 1; }
      100% { transform: translateY(-800px) scale(0.5); opacity: 0; }
    }

    @keyframes fadeInUp {
      from { transform: translateY(30px); opacity: 0; }
      to { transform: translateY(0); opacity: 1; }
    }