/* =========================
   RESET
========================= */
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    background:#fff7fa;
    font-family:'Roboto', sans-serif;
    color:#222;
}

/* =========================
   CONTAINER
========================= */
.container{
    width:96%;
    max-width:1920px;
    margin:auto;
}

/* =========================
   HEADER
========================= */
.header{
    background:white;
    padding:20px 0;
    box-shadow:0 2px 10px rgba(0,0,0,0.05);
    position:relative;
    z-index:100;
}

.nav-menu{
    display:flex;
    justify-content:flex-end;
    align-items:center;
    padding-right:40px;
}

.logo{
    display:none;
}

/* menu desktop */
.menu{
    display:flex;
    list-style:none;
    gap:55px;
    align-items:center;
}

.menu-item a,
.cart-info{
    text-decoration:none;
    color:#111;
    font-size:22px;
    font-weight:300;
    transition:.3s;
    cursor:pointer;
}

.menu-item a:hover,
.cart-info:hover{
    color:#f4a6c1;
}

/* =========================
   HAMBURGER
========================= */
.hamburger{
    display:none;
    flex-direction:column;
    gap:6px;
    cursor:pointer;
}

.hamburger span{
    width:32px;
    height:3px;
    background:#111;
    border-radius:3px;
    transition:.3s;
}

.hamburger.active span:nth-child(1){
    transform:rotate(45deg) translate(7px,6px);
}
.hamburger.active span:nth-child(2){
    opacity:0;
}
.hamburger.active span:nth-child(3){
    transform:rotate(-45deg) translate(7px,-6px);
}

/* =========================
   LAB SECTION
========================= */
.labs{
    padding:70px 0;
}

.box-title h3{
    text-align:center;
    font-size:54px;
    font-family:'Pacifico', cursive;
    color:#f08fb1;
    margin-bottom:60px;
}

/* grid */
.lab-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:30px;
}

/* card */
.lab-grid > div{
    background:white;
    padding:30px;
    border-radius:20px;
    box-shadow:0 8px 20px rgba(240,143,177,0.15);
    border:2px solid #ffd9e5;
    transition:.3s;
    text-align:center;
}

.lab-grid > div:hover{
    transform:translateY(-8px);
    box-shadow:0 12px 30px rgba(240,143,177,0.25);
}

/* tiêu đề lab */
.card-title a{
    text-decoration:none;
    color:#d86b93;
    font-size:26px;
    font-weight:700;
    display:block;
    margin-bottom:20px;
}

/* link bài */
.card-text{
    margin:12px 0;
}

.card-text a{
    text-decoration:none;
    color:#555;
    font-size:20px;
    transition:.3s;
}

.card-text a:hover{
    color:#f08fb1;
}

/* nút */
.btn{
    display:block;
    width:100%;
    text-align:center;
    margin-top:-10px;
    margin-bottom:20px;
    padding:14px;
    background:#f4a6c1;
    color:white;
    text-decoration:none;
    border-radius:12px;
    font-size:20px;
    font-weight:bold;
    transition:.3s;
}

.btn:hover{
    background:#e98aaa;
}

/* =========================
   FOOTER
========================= */
.footer{
    background:#f4a6c1;
    color:white;
    text-align:center;
    padding:40px 0;
    margin-top:50px;
}

.footer h3{
    font-size:32px;
    margin-bottom:10px;
}

.footer p{
    font-size:20px;
}

/* =========================
   RESPONSIVE
========================= */
@media(max-width:1200px){
    .lab-grid{
        grid-template-columns:repeat(2,1fr);
    }
}

@media(max-width:768px){

    .nav-menu{
        justify-content:space-between;
        padding:0 20px;
    }

    .hamburger{
        display:flex;
    }

    .menu{
        display:none;
        flex-direction:column;
        position:absolute;
        top:80px;
        left:20px;
        width:280px;
        background:white;
        padding:30px;
        gap:30px;
        box-shadow:0 5px 20px rgba(0,0,0,.2);
        border-radius:12px;
    }

    .menu.active{
        display:flex;
    }

    .lab-grid{
        grid-template-columns:1fr;
    }

    .box-title h3{
        font-size:38px;
    }

    .card-title a{
        font-size:22px;
    }

    .card-text a{
        font-size:18px;
    }
}