:root {
    --primary-color: #4a6bff;
    --secondary-color: #f0f2f5;
    --text-color: #333;
    --error-color: #e74c3c;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--secondary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.login-container {
    background-color: #fff;
    width: 90%;
    max-width: 420px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    transition: all 0.3s ease;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

    .login-header h1 {
        color: var(--text-color);
        font-size: 1.8rem;
        margin-bottom: 0.5rem;
    }

    .login-header p {
        color: #666;
        font-size: 0.9rem;
    }

.form-group {
    margin-bottom: 1.5rem;
}

    .form-group label {
        display: block;
        margin-bottom: 0.5rem;
        color: var(--text-color);
        font-weight: 500;
        font-size: 0.9rem;
    }

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

    .form-control:focus {
        border-color: var(--primary-color);
        outline: none;
        box-shadow: 0 0 0 2px rgba(74, 107, 255, 0.2);
    }

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

    .form-check input {
        margin-right: 0.5rem;
    }

    .form-check label {
        font-size: 0.9rem;
        color: #666;
    }

.login-btn {
    width: 100%;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 0.9rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

    .login-btn:hover {
        background-color: #3b5aee;
    }

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
}

    .login-footer a {
        color: var(--primary-color);
        text-decoration: none;
        font-size: 0.9rem;
        transition: color 0.3s;
    }

        .login-footer a:hover {
            color: #3b5aee;
            text-decoration: underline;
        }

.validation-message {
    color: var(--error-color);
    font-size: 0.8rem;
    margin-top: 0.25rem;
    display: none;
}

.form-control.invalid {
    border-color: var(--error-color);
}

    .form-control.invalid + .validation-message {
        display: block;
    }

.company-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}

    .company-logo img {
        max-height: 60px;
        max-width: 200px;
    }

@media (max-width: 576px) {
    .login-container {
        width: 95%;
        padding: 1.5rem;
        margin: 1rem;
    }

    .login-header h1 {
        font-size: 1.5rem;
    }
}