:root {
    --primary-color: #36506c;
    --accent-color: #00a4d4;
    --background-color: #f7f9fc;
    --text-color: #333;
    --link-color: #0072bc;
    --white-color: #ffffff;
}

body {
    /* Nuevo fondo de degradado */
    background: linear-gradient(135deg, #f7f9fc 0%, #eef5f8 100%);
    font-family: Arial, sans-serif;
    color: var(--text-color);
}

.login-card {
    width: 100%;
    max-width: 450px;
    background-color: var(--white-color);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.8s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo-header {
    width: 120px;
    height: auto;
}

.card-title {
    color: var(--primary-color);
    font-weight: bold;
}

.form-title {
    color: var(--accent-color);
    font-weight: bold;
}

.form-control {
    border-color: #ddd;
    border-radius: 8px;
    padding-left: 40px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.25rem rgba(0, 164, 212, 0.25);
}

.input-icon {
    position: relative;
}

.input-icon .fa-solid {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--link-color);
    font-size: 1.1em;
}

.form-control::placeholder {
    color: #aaa;
    font-style: italic;
}

.btn-submit {
    background-color: var(--primary-color);
    border: none;
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.nav-link-item {
    color: var(--link-color);
    text-decoration: none;
    font-size: 0.9em;
    font-weight: bold;
    transition: color 0.3s ease;
    cursor: pointer;
}

.nav-link-item:hover {
    color: var(--accent-color);
}

.footer {
    background-color: var(--primary-color);
    color: var(--white-color);
}

.contact-info {
    font-size: 0.8em;
    line-height: 1.5;
}

.footer .link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: bold;
}

.footer .link:hover {
    text-decoration: underline;
}

@media (max-width: 576px) {
    .login-card {
        padding: 30px 20px;
    }
}