.hiddenElem {
	display:none;
}
/* Night mode: dark background, light text, but not pure black/white */
body {
    background-color: #23272f; /* dark blue-gray */
    color: #e0e6ed;           /* soft light gray */
    font-family: 'Segoe UI', 'Arial', sans-serif;
}
a {
    color: #8ab4f8;           /* soft blue for links */
}
input, textarea, select, button {
    background-color: #2c313a;
    color: #e0e6ed;
    border: 1px solid #444a54;
}
input::placeholder, textarea::placeholder {
    color: #b0b8c1;
}
.form-control {
    background-color: #23272f;
    color: #fff;
    border-color: #8ab4f8;
}
.btn {
    background-color: #444a54;
    color: #e0e6ed;
    border: 1px solid #8ab4f8;
}
.btn:hover {
    background-color: #2c313a;
    color: #fff;
    border: 1px solid #8ab4f8;
}
.hiddenElem {
    display: none;
}