.combo-block { background: #ffffff; border:1px solid #e5e7eb; padding:1rem; border-radius:12px; position:relative;
    font-size: 20px;
    color: #000000 !important;

    overflow:hidden; display:flex; align-items:center; justify-content:center; gap:.5rem; font-weight:600; transition:transform .25s ease, box-shadow .25s ease, color .25s ease, background .25s ease; box-shadow:0 1px 2px rgba(0,0,0,.04);}
.combo-block:hover { transform:translateY(-4px) scale(1.01); box-shadow:0 10px 24px rgba(0,0,0,.10); color:#111827; }

/* PRODUCT LIST */
.product-card { width: 100%; height:100%; border:1px solid #e9ecef; border-radius:.75rem; overflow:hidden; transition:box-shadow .2s ease, transform .2s ease; position: relative; }
.product-card:hover { box-shadow:0 .5rem 1rem rgba(0,0,0,.08); transform:translateY(-2px); }
.product-img { object-fit:cover; width:100%; height:100%; }
.price { display:flex; align-items:center; gap:.5rem; flex-wrap:wrap; }
.price .now { font-weight:700; }
.price .old { color:#6c757d; text-decoration:line-through; }

/* Hiệu ứng sáng lướt */
.combo-block::before{ content:""; position:absolute; inset:0; background:linear-gradient(120deg,rgba(255,255,255,0) 30%, rgba(255,255,255,.6) 50%, rgba(255,255,255,0) 70%); transform:translateX(-120%); transition:transform .6s ease; }
.combo-block:hover::before{ transform:translateX(120%); }

/* Viền gradient khi hover */
.combo-block.active::after{ content:""; position:absolute; inset:0; padding:1px; border-radius:12px; background:linear-gradient(90deg,#111827, #6b7280, #111827); -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite:xor; mask-composite:exclude; opacity:0; transition:opacity .25s ease; }
.combo-block:hover::after{ opacity:1; }

/* Trạng thái nhấn */
.combo-block:active{ transform:translateY(-1px) scale(.99); box-shadow:0 6px 16px rgba(0,0,0,.12); }

/* Focus A11y */
.combo-block:focus-visible{ outline:3px solid rgba(121, 11, 11, 0.6); outline-offset:3px; }

/* Nháy nhẹ cho combo active */
@keyframes pulseGlow{ 0%,100%{ box-shadow:0 0 0 0 rgb(215, 126, 158);} 50%{ box-shadow:0 0 0 10px rgb(236, 74, 134);} }
.combo-block.active{ animation:pulseGlow 1.8s ease-in-out infinite; }

/* Tôn trọng người dùng giảm chuyển động */
@media (prefers-reduced-motion: reduce){
    .combo-block, .combo-block::before, .combo-block::after{ transition:none !important; animation:none !important; }
}

.product-list{
    min-height: 450px;
}
.btn-add{
    float: right;
    width: 55px;
    background: #db9eb4;
    border: 1px solid #b95484;
}
.product-card.active:before{
    content: "\f170";
    display: inline-block;
    font-family: bootstrap-icons !important;
    font-style: normal;
    font-weight: normal !important;
    font-variant: normal;
    text-transform: none;
    line-height: 1;
    vertical-align: -0.125em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: absolute;
    left: 8px;
    top: 8px;
    color: #2b935a;
    font-size: 32px;
    z-index: 1;
}
.header-cg {
    background: #ebebeb;
    padding: 10px;
}
.size_bag{
    float: right;
    width: 80px;
    margin-top: -7px;
}
.form-size{
    font-size: 26px;
    margin-right: 10px;
    color: #ee5693;
    font-weight: bold;
    margin-top: -5px;
}
.left-dep {
    width: 40%;
    margin: 0;
    padding: 0;
    margin-top: 19.7%;
    margin-right: -2px;
    z-index: 1;
    position: relative;
}
.left-tui:before {
    content: "";
    width: 60px;
    height: 60px;
    background-image: url("https://fptcity.vn/wp-content/uploads/hot-icon.gif");
    position: absolute;
    top: -39px;
    right: -33px;
    z-index: 2;
    background-size: 100%;
    transform: rotate(30deg);
}
.left-tui {
    width: 60%;
    margin: 0;
    padding: 0;
    border-radius: 0;
    position: relative;
}

.left-dep img {
    border: 2px solid #ec4a86;
    border-right: none;
}

.left-tui img {
    border: 2px solid #ec4a86;
}
h3.title-combo {
    font-size: 32px;

    text-align: center;
    width: 100%;
    position: absolute;
    height: 35%;
    top: -32%;
    line-height: 31px;
}
h3.title-combo .old{
    color: #6c757d;
    text-decoration: line-through;
    font-size: 18px;
    float: right;
    margin-right: 15px;
}
h3.title-combo p{
    margin: 0;
}
.combo-preview{
    padding-left: 10px;
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .08);
    transform: translateY(-2px);
    border: 1px solid #e9ecef;
    padding-top: 10px;
}
.combo-preview .alert-success{
    padding: 130px 30px;
    font-size: 36px;
}
.title-product{
    margin-top: 10px;
}
.title-product ul {
    list-style: none;
    padding: 0;
    display: flex;
}
.title-product ul li {
    margin-right: 10px;
}
.policy {
    background: #ffecf2;
    border-color: #efd8df ! IMPORTANT;
}
.policy ul{
    display: flex;
}
.policy ul li {
    margin-left: 30px;
}
.discount-product {
    position: absolute;
    left: -24px;
    top: -8px;
    font-size: 17px;
}
ul.option-product {
    list-style: none;
    padding: 0;
    display: flex;
}

ul.option-product li {
    margin-right: 6px;
}
article.product-card.active {
    background: #dddddd;
}
.product-card.active .btn-add{
    display: none;
}
.form-control.error, .form-check-input.error  {
    border-color: red;
}
.form-check-input.error + label {
    color: red;
}
.price-combo{
    font-size: 41px;
    font-weight: bold;
    color: #e65b94;
}
.clearfix{
    clear: both;
}
a.size_guide {
    font-size: 13px;
    color: red;
    margin-top: -5px;
    display: block;
}
@media (max-width: 1000px) {
    main.container {
        width: 96% !important;
        margin: 0 auto;
        max-width: max-content;
    }

    .policy ul{
        display: grid;
    }
    .form-size{
        font-size: 18px;
    }
}

@media (max-width: 700px) {
    h3.title-combo{
        font-size: 23px;
        text-align: center;
        width: 100%;
        position: absolute;
        height: 35%;
        top: -27%;
        line-height: 18px;
    }

}