body {
    font-family: 'Montserrat', sans-serif;
    background-color: #1a1a1a;
    color: #fff;
}

/* Thanh menu*/
.navbar {
    background-color: #850000;
}

/* Tiêu đề */
.hero-section {
    display: flex;
    align-items: center;
    text-align: center;
    animation: fadeInUp 1.5s ease-in-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-section h1 {
    font-size: 2.5rem;
    color: #dd9933;
    margin-bottom: 20px;
}

.hero-section p {
    font-size: 1.2rem;
    color: #fff;
    margin-bottom: 30px;
}

/* Thẻ các phòng chơi */
.game-card {
    transition: all 0.3s ease;
    background-color: #242628;
    border: none;
}

.card-body {
    color: white;
}

.game-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(133, 0, 0, 0.5);
}

.game-card img {
    height: 300px;
    object-fit: cover;
}

/* Tiêu đề */
.section-title {
    color: #dd9933;
    text-transform: uppercase;
    font-weight: 700;
}


.footer {
    background-color: #333333;
    padding: 5px 0;
}

/* NÚT TÙY CHỈNH */
.btn-custom {
    background-color: #850000;
    color: #fff;
    border-radius: 25px;
    padding: 10px 30px;
    transition: all 0.4s ease;
    transform: scale(1);
}

.btn-custom:hover {
    background-color: #dd9933;
    color: #fff;
    transform: scale(1.05);
    box-shadow: 0 8px 15px rgba(255, 158, 13, 0.3);
}

/*  PHẦN MÔ TẢ */
.description {
    display: block;
    max-width: 1000px;
}

#section_description {
    padding-top: 30px;
    padding-bottom: 30px;
    max-width: 1120px;   
    margin-left: auto;
    margin-right: auto;
}

#main_img {
    width: 100%;
}

@media (min-width: 550px) {
    #main_img {
        width: 85%;
    }
}

/*Table*/
table {
    border-width: 20px;
}

/* Menu phòng chơi */
.dropdown button {
    border: none;
    background: none;
    color: rgba(255, 255, 255, 0.7);    
}

.dropdown .dropdown-menu {
    margin-top: 0px;
    background: #1a1a1a;
    color: white;
    border: 1px solid #880404;
    box-shadow: 0 5px 15px rgba(136, 4, 4, 0.5);
}

.dropdown .dropdown-item {
    display: block;
    margin-top: 0px;
    background: #1a1a1a;
    color: white;
    transition: all 0.3s ease;
    padding: 10px 15px;
    border-left: 3px solid transparent;
}

.dropdown .dropdown-item:hover {
    background: #8c1414;
    color: white;
    border-left: 3px solid #040404;
    transform: translateX(5px);
}

.dropdown-toggle::after {
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-toggle::after {
    transform: rotate(180deg);
}

.dropdown:hover .dropdown-toggle {
    color: #dd9933;
}

/*Liên hệ*/
#lienhe {
    padding: 50px 0;
}

#lienhe h5 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
}

#lienhe p {
    font-size: 1rem;
    margin-bottom: 15px;
}

/* Nút chat */
.chat-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: #850000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: all 0.3s ease;
}

.chat-button:hover {
    background-color: #dd9933;
    transform: scale(1.1);
}

.chat-button i {
    font-size: 24px;
    color: white;
}

/* Nút popup */
.play-game-button {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: #850000; /* màu đỏ */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: all 0.3s ease;
}

.play-game-button:hover {
    background-color: #dd9933; /* màu vàng */
    transform: scale(1.1);
}

.play-game-button i {
    font-size: 24px;
    color: white;
}
.chat-popup {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 250px;
    background-color: #1a1a1a;
    border: 1px solid #850000;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    display: none;
    z-index: 1000;
}

.chat-header {
    background-color: #850000;
    color: white;
    padding: 10px;
    border-radius: 10px 10px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header span {
    font-size: 14px;
    font-weight: bold;
}

.close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
}

.chat-body {
    padding: 10px;
}

.chat-option {
    display: flex;
    align-items: center;
    padding: 10px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.chat-option:hover {
    background-color: #333333;
    border-radius: 5px;
    color: #dd9933;
}

.chat-option i {
    margin-right: 10px;
    font-size: 20px;
}

/* Phần khuyến mãi */
.promotion-section {
    padding: 50px 0;
    background-color: rgba(0, 0, 0, 0.336);
}

.promotion-card {
    background-color: rgba(133, 0, 0, 0.2);
    border: 1px solid #960b0b;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
    height: 100%;
}

.promotion-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(133, 0, 0, 0.3);
    background-color: rgba(255, 8, 8, 0.3);
}

.promotion-title {
    color: #dd9933;
    font-weight: 700;
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.promotion-price {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 15px;
}

.promotion-price span {
    font-size: 1rem;
    text-decoration: line-through;
    color: #aaa;
    margin-left: 10px;
}

.promotion-badge {
    background-color: #ff9e0d;
    color: #000;
    font-weight: 700;
    padding: 5px 10px;
    border-radius: 5px;
    display: inline-block;
    margin-bottom: 15px;
    font-size: 0.9rem;
}