:root {
    --primary-color: #007bff;
    --primary-color-dark: #0056b3;
    --secondary-color: #6c757d;
    --background-color: #f0f2f5;
    --text-color: #333;
    --card-background: #ffffff;
    --input-background: #f8f9fa;
    --input-border: #ced4da;
    --error-color: #e74c3c;
    --white: #fff;
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-image: url('img/fondo.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.login-wrapper {
    display: flex;
    width: 100%;
    max-width: 900px;
    min-height: 550px;
    background-color: var(--card-background);
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.login-welcome {
    flex: 1;
    background: linear-gradient(45deg, var(--primary-color), var(--primary-color-dark));
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px;
    text-align: center;
}

.welcome-logo img {
    max-width: 120px;
    margin-bottom: 20px;
}

.welcome-title {
    font-size: 2rem;
    font-weight: 600;
    margin: 0 0 10px;
}

.welcome-message {
    font-size: 1rem;
    line-height: 1.6;
}

.login-form-container {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-form-container h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 25px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--secondary-color);
    margin-bottom: 8px;
    display: block;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    background-color: var(--input-background);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

.btn-login {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    background-color: var(--primary-color);
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s;
    margin-top: 10px;
}

.btn-login:hover {
    background-color: var(--primary-color-dark);
    transform: translateY(-2px);
}

.error-message {
    background-color: var(--error-color);
    color: var(--white);
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 20px;
    font-weight: 500;
}

.demo-credentials {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    padding: 20px;
    margin-top: 25px;
    border-radius: 8px;
    text-align: left;
    font-size: 0.875rem;
}

.demo-credentials h4 {
    margin: 0 0 15px;
    color: #343a40;
    font-size: 1rem;
    font-weight: 600;
    border-bottom: 1px solid #e9ecef;
    padding-bottom: 10px;
}

.credential-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding: 5px;
}

.credential-item strong {
    color: #495057;
}

.copy-btn {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: background-color 0.2s;
}

.copy-btn:hover {
    background-color: #0056b3;
}

@media (max-width: 768px) {
    .login-wrapper {
        flex-direction: column;
        min-height: auto;
        margin: 20px;
    }

    .login-welcome {
        padding: 30px;
    }

    .login-form-container {
        padding: 30px;
    }
}