.body {
    background-color: #f0f4ff;
}

.hover-link {
    transition: all 0.3s ease;
}

.hover-link:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: #fff !important;
    box-shadow: 0 0 10px rgba(13, 110, 253, 0.5);
    text-shadow: 0 0 6px rgba(255, 255, 255, 0.8);
}

.hover-link i,
.hover-link span {
    color: #fff;
}

.hover-link:hover i,
.hover-link:hover span {
    color: #fff;
}

.content-box {
    background-color: #fff;
    border: 1px solid #dee2e6;
}

/* Styling scrollbar untuk browser berbasis Webkit (Chrome, Safari, Edge Chromium) */
.list-group-scroll::-webkit-scrollbar {
    width: 8px;
}

.list-group-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.list-group-scroll::-webkit-scrollbar-thumb {
    background-color: #0d6efd;
    border-radius: 10px;
    border: 2px solid transparent;
    background-clip: content-box;
}

/* Scrollbar untuk Firefox */
.list-group-scroll {
    scrollbar-width: thin;
    scrollbar-color: #0d6efd transparent;
}

/* HOVER untuk list */
.list-link {
    display: block;
    color: #212529;
    /* default text color */
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition:
        background-color 0.3s ease,
        color 0.3s ease,
        box-shadow 0.3s ease,
        transform 0.2s ease;
    font-weight: 500;
}

.list-link:hover,
.list-link:focus {
    background-color: #0d6efd;
    /* bootstrap primary blue */
    color: #fff;
    box-shadow: 0 8px 20px rgba(13, 110, 253, 0.3);
    transform: scale(1.03);
    outline: none;
    text-decoration: none;
}

/* Animasi untuk card dan gambar gedung */
.card,
.anim {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.card.show,
.anim.show {
    opacity: 1;
    transform: translateY(0);
}

/* footer */
.container.content-box {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.footer {
    background-color: #b0b0b0 !important;
    /* abu-abu lebih terang dari bg-secondary */
    color: white;
    margin-top: auto;
    border-top: 1px solid #9a9a9a;
    /* garis halus biar ada sedikit depth */
}

/* === Warna gradasi biru === */
.bg-blue-1 {
    background-color: #cfe2ff !important;
    color: #052c65 !important;
    transition: background-color 0.4s ease;
}

.bg-blue-2 {
    background-color: #9ec5fe !important;
    color: #052c65 !important;
    transition: background-color 0.4s ease;
}

.bg-blue-3 {
    background-color: #6ea8fe !important;
    color: #fff !important;
    transition: background-color 0.4s ease;
}

.bg-blue-4 {
    background-color: #3d8bfd !important;
    color: #fff !important;
    transition: background-color 0.4s ease;
}

.bg-blue-5 {
    background-color: #0d6efd !important;
    color: #fff !important;
    transition: background-color 0.4s ease;
}

.bg-blue-6 {
    background-color: #0b5ed7 !important;
    color: #fff !important;
    transition: background-color 0.4s ease;
}

.bg-blue-7 {
    background-color: #084298 !important;
    color: #fff !important;
    transition: background-color 0.4s ease;
}

/* === Hover effect: ubah background secara halus === */
.bg-blue-1:hover {
    background-color: #b6d4fe !important;
}

.bg-blue-2:hover {
    background-color: #86b7fe !important;
}

.bg-blue-3:hover {
    background-color: #5a9bfe !important;
}

.bg-blue-4:hover {
    background-color: #357ffb !important;
}

.bg-blue-5:hover {
    background-color: #0b5ed7 !important;
}

.bg-blue-6:hover {
    background-color: #094bb5 !important;
}

.bg-blue-7:hover {
    background-color: #062e77 !important;
}

/* Tambahan: efek pointer dan sedikit bayangan */
.card-header {
    cursor: pointer;
    transition: all 0.3s ease;
}

.card-header:hover {
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
}

/* Atur ikon dan teks sejajar rapi */
.card-header i {
    font-size: 1.2rem;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}