body {
      background: linear-gradient(to bottom right, #F2F7FF, #9FB8D9);
      font-family: 'Outfit', sans-serif;
      margin: 0;
      padding: 0;
      min-height: 100vh;
      position: relative;
    }
    
    .signup-container {
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100vh;
      padding: 2rem;
      box-sizing: border-box;
    }
    
    .signup-card {
      background: white;
      padding: 2.5rem;
      border-radius: 12px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
      width: 100%;
      max-width: 400px;
      text-align: center;
      z-index: 2;
      position: relative;
    }
    
    .form-group {
      margin-bottom: 1.5rem;
      text-align: left;
    }
    
    .form-group label {
      display: block;
      margin-bottom: 0.5rem;
      color: #1d2b4f;
      font-weight: 600;
    }
    
    .form-group input {
      width: 100%;
      padding: 0.75rem;
      border: 1px solid #ddd;
      border-radius: 6px;
      font-family: 'Outfit', sans-serif;
      box-sizing: border-box;
    }
    
    .signup-btn {
      width: 100%;
      padding: 0.75rem;
      background-color: #1d2b4f;
      color: white;
      border: none;
      border-radius: 6px;
      font-family: 'Outfit', sans-serif;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.3s;
    }
    
    .signup-btn:hover {
      background-color: #3a4a6e;
    }
    
    .login-link {
      margin-top: 1.5rem;
      font-size: 0.9rem;
      color: #555;
    }

    .password-strength {
      height: 5px;
      background: #eee;
      border-radius: 3px;
      margin-top: 5px;
      overflow: hidden;
    }
    
    .password-strength-bar {
      height: 100%;
      width: 0%;
      background: #ff6b6b;
      transition: width 0.3s, background 0.3s;
    }

    .wave-shape {
      position: fixed;
      width: 100%;
      height: 120px;
      background: #9FB8D9;
      z-index: 1;
      left: 0;
    }

    .top-wave {
      top: 0;
      border-bottom-left-radius: 100% 140px;
      border-bottom-right-radius: 100% 140px;
    }

    .bottom-wave {
      bottom: 0;
      border-top-left-radius: 100% 140px;
      border-top-right-radius: 100% 140px;
    }

    .notification {
      position: fixed;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
      background: white;
      padding: 1rem 2rem;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      z-index: 1000;
      display: flex;
      align-items: center;
      max-width: 90%;
      animation: fadeIn 0.3s, fadeOut 0.3s 2.7s;
    }
    
    .notification.error {
      background: #ffebee;
      border-left: 4px solid #f44336;
    }
    
    .notification.success {
      background: #e8f5e9;
      border-left: 4px solid #4caf50;
    }
    
    .notification .icon {
      margin-right: 12px;
      font-size: 1.5rem;
    }
    
    .notification .close {
      margin-left: 15px;
      cursor: pointer;
    }
    
    @keyframes fadeIn {
      from { opacity: 0; top: 0; }
      to { opacity: 1; top: 20px; }
    }
    
    @keyframes fadeOut {
      from { opacity: 1; }
      to { opacity: 0; }
    }