* {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: Arial;
    background: linear-gradient(135deg, #edf6ff, #f8fafc);
    min-height: 100vh;
    color: #101828;
  }
  
  .login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
  }
  
  .login-card {
    width: 100%;
    max-width: 420px;
    background: white;
    border-radius: 24px;
    padding: 34px;
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
  }
  
  .brand {
    color: #0b6bcb;
    font-weight: 900;
    font-size: 18px;
    margin-bottom: 18px;
  }
  
  .title {
    font-size: 28px;
    font-weight: 900;
  }
  
  .subtitle {
    color: #667085;
    margin-top: 8px;
    margin-bottom: 26px;
  }
  
  .field {
    margin-bottom: 16px;
  }
  
  .field label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
  }
  
  .field input {
    width: 100%;
    border: 1px solid #d0d5dd;
    border-radius: 14px;
    padding: 13px;
    font-size: 15px;
  }
  
  .field input:focus {
    outline: none;
    border-color: #0b6bcb;
    box-shadow: 0 0 0 4px rgba(11, 107, 203, 0.12);
  }
  
  button {
    width: 100%;
    border: 0;
    border-radius: 14px;
    padding: 14px;
    background: #0b6bcb;
    color: white;
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
  }
  
  button:hover {
    background: #084f96;
  }
  
  .error {
    display: none;
    margin-top: 16px;
    padding: 12px;
    background: #fee4e2;
    color: #b42318;
    border-radius: 12px;
    font-size: 14px;
  }
  
  .error.active {
    display: block;
  }