* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #003366 0%, #0055aa 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 450px;
}

.auth-box {
    background-color: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.auth-box h1 {
    color: #003366;
    font-size: 28px;
    text-align: center;
    margin-bottom: 10px;
}

.auth-box h2 {
    color: #666;
    font-size: 16px;
    text-align: center;
    margin-bottom: 30px;
    font-weight: normal;
}

.alert {
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-field label {
    font-weight: bold;
    color: #333;
    font-size: 14px;
}

.form-field input {
    padding: 12px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 14px;
    font-family: Arial, sans-serif;
}

.form-field input:focus {
    outline: none;
    border-color: #003366;
    box-shadow: 0 0 0 2px rgba(0,51,102,0.25);
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
    text-align: center;
}

.btn-primary {
    background-color: #003366;
    color: white;
}

.btn-primary:hover {
    background-color: #002244;
}

.btn-block {
    width: 100%;
    display: block;
}

.auth-footer {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #dee2e6;
    text-align: center;
    color: #666;
    font-size: 14px;
}

.auth-footer a {
    color: #003366;
    text-decoration: none;
    font-weight: bold;
}

.auth-footer a:hover {
    text-decoration: underline;
}

@media screen and (max-width: 480px) {
    .auth-box {
        padding: 30px 20px;
    }
    
    .auth-box h1 {
        font-size: 24px;
    }
}