html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

/* Tema claro (default) */
body {
    background-color: #ffffff;
    color: #333333;
}

.navbar, .sidebar {
    background-color: #f8f9fa;
    color: #333;
}

.card {
    background-color: #ffffff;
    color: #333;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

/* Tema escuro */
body.dark {
    background-color: #121212;
    color: #e0e0e0;
}

    body.dark .navbar,
    body.dark .sidebar {
        background-color: #1f1f1f;
        color: #e0e0e0;
    }

    body.dark .card {
        background-color: #1e1e1e;
        color: #e0e0e0;
    }

    body.dark .alert-success {
        background-color: #1f3d1f;
        color: #cce5cc;
    }

    body.dark .alert-danger {
        background-color: #3d1f1f;
        color: #f5cccc;
    }

    body.dark a.btn-primary {
        background-color: #0d6efd;
        border-color: #0d6efd;
        color: #fff;
    }

    body.dark a.btn-secondary {
        background-color: #6c757d;
        border-color: #6c757d;
        color: #fff;
    }

    body.dark a.btn-success {
        background-color: #198754;
        border-color: #198754;
        color: #fff;
    }

    body.dark a.btn-dark {
        background-color: #212529;
        border-color: #212529;
        color: #fff;
    }

    body.dark a.btn-warning {
        background-color: #ffc107;
        border-color: #ffc107;
        color: #212529;
    }