:root {
    --navy-color: #0F2942;
    --gold-color: #C5A017;
    --gold-hover: #a68512;
    --bg-light: #f8f9fa;
}

/* --- SIDEBAR FILTER --- */
.filter-card {
    border: none;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    overflow: hidden;
    margin-bottom: 20px;
    background: white;
}

.filter-header {
    background-color: var(--navy-color);
    color: white;
    padding: 15px 20px;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.95rem;
    letter-spacing: 1px;
    border-bottom: 3px solid var(--gold-color);
}

.list-group-item {
    border: none;
    border-bottom: 1px solid #f1f1f1;
    padding: 12px 20px;
    font-size: 0.95rem;
    color: #555;
    transition: all 0.2s;
}

.list-group-item:hover {
    background-color: #fff9e6; /* Màu nền vàng rất nhạt */
    color: var(--gold-color);
    padding-left: 25px; /* Hiệu ứng đẩy sang phải */
}

.list-group-item.active {
    background-color: var(--gold-color) !important;
    border-color: var(--gold-color) !important;
    color: white !important;
    font-weight: 600;
}

/* --- PRODUCT CARD --- */
.room-card {
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
    background: white;
}

.room-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(15, 41, 66, 0.15);
    border-color: var(--gold-color);
}

.room-img-wrapper {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.room-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.room-card:hover .room-img {
    transform: scale(1.1);
}

.room-price {
    color: var(--gold-color);
    font-weight: 800;
    font-size: 1.1rem;
}

/* --- BUTTONS --- */
.btn-search {
    background-color: var(--navy-color);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 4px;
    transition: 0.3s;
}

.btn-search:hover {
    background-color: #1a3c5e;
    color: white;
}

.btn-detail {
    border: 1px solid var(--navy-color);
    color: var(--navy-color);
    font-weight: 600;
    transition: 0.3s;
}

.btn-detail:hover {
    background-color: var(--navy-color);
    color: white;
}

.btn-book {
    background-color: var(--gold-color);
    color: white;
    border: none;
    font-weight: 600;
    transition: 0.3s;
}

.btn-book:hover {
    background-color: var(--gold-hover);
    color: white;
    transform: translateY(-2px);
}

/* --- PAGINATION --- */
.page-link {
    color: var(--navy-color);
    border: 1px solid #dee2e6;
}

.page-link:hover {
    background-color: #e9ecef;
    color: var(--navy-color);
}

.page-item.active .page-link {
    background-color: var(--navy-color);
    border-color: var(--navy-color);
    color: var(--gold-color);
}