/* Variables CSS para colores */
:root {
    --primary-color: #4CAF50;
    --secondary-color: #388E3C;
    --background-color: #e8f5e9;
    --card-background: #ffffff;
    --text-color: #333;
    --error-color: #d32f2f;
}

/* Estilos generales */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    width: 100%;
}

.login-card {
    background-color: var(--card-background);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 350px;
    text-align: center;
}

h2 {
    color: var(--primary-color);
    margin-bottom: 25px;
}

.form-group {
    text-align: left;
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: bold;
}

input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    box-sizing: border-box;
}

.login-button {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    padding: 15px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.login-button:hover {
    background-color: var(--secondary-color);
}

.error-message {
    color: var(--error-color);
    margin-top: 15px;
    font-size: 14px;
    height: 20px; /* Para evitar que el diseño se mueva */
}