*{
    box-sizing: border-box;
    background: rgb(17, 18, 13);  
    font-family: 'poppins', sans-serif;
    margin: 0;
    padding: 0;
    color: aliceblue;
    user-select: none;
}
:root{
    --red-color : rgb(158, 22, 22);
    --white-color : aliceblue;
}


/* Utility classes */
.text-size-xxl{
    font-size: 1.7rem;
    font-weight: 500;
}
.text-size-xxxl{
    font-size: 2.7rem;
    font-weight: 500;
}
.text-size-xl{
    font-size: 1.2rem;
    font-weight: 400;
}
.container{
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 auto;
}


/* ---- NAVBAR ----- */
.navbar{
    padding: 20px;
    margin-top: 10px;
    font-weight: 600;
}
.navbar h3{
    font-family: 'poppins', sans-serif;
    margin-left: 80px;
}
.navbar .nav-container{
    display: flex ;
    justify-content: space-between;
    align-items: center;
}
.navbar .nav-container ul{
    display: flex;
}
.navbar .nav-container ul li a{
    text-decoration: none;
    padding: 10px 20px;
    transition: 0.5s;
}
.navbar .nav-container ul li a:hover{
    color: var(--red-color);
    transition: 0.5s;
}
.navbar .nav-container ul li{
    list-style: none;
    transition: 0.5s;
}

.navbar .nav-container ul li .abt-line{
    border-bottom: 2px solid var(--red-color);
    padding: 0 0 5px 0;
    margin-right: 20px;
    margin-left: 20px;
    color: var(--red-color);
}

.cv{
    padding: 10px 20px;
    background: var(--red-color);
    border-radius: 10px;
    margin-left: 10px;
    transition: 0.5s;
}
.cv:hover{
    background: var(--white-color);
    color: var(--red-color);
    transition: 0.5s;
}

/* About */
.about .skills h2{
    margin-top: 3rem;
    text-align: center;
}
.pgrm{
    width: 400px;
    height:150px;
    border: 0.5px solid beige;
    border-radius: 10px;
    transition: 0.5s;
}
.pgrm h2{
    margin-left: 20px;
    margin-top: 10px;
    font-weight: 600;
    margin-bottom: 20px;
}
.pgrm p{
    font-size: 14px;
    padding: 3px;
    margin-left: 20px;
    border-radius: 5px;

}
.skills-list{
    margin-top: 6rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    row-gap: 5rem;
    
}
.pgrm:hover {
    transition: 0.5s;
    transform: translateY(-5px) rotate(-3deg) scale(1.05);
    box-shadow: 0px 0px 20px 5px rgba(0, 123, 255, 0.4);
    border-color: #007bff;
    color: #007bff;
}


/* Certificate */

.cer-1, .cer-2,.cer-3,.cer-4,.cer-5{
    padding: 8% 10% 8% 10%;
    width: 390px;
    border: 1px solid #FFFBF4;
    margin-bottom: 8%;
    color: #FFFBF4;
    background-position:center;
    background-size: cover;
    border-radius: 10px;
    background-color: #524f4f;
    background-blend-mode:multiply;
    transition-duration: 0.5s;
}
.cer-1:hover, .cer-2:hover,.cer-3:hover,.cer-4:hover,.cer-5:hover{
    transition-duration: 0.5s;
    background-color: #FFFBF4;
    background-blend-mode: multiply;
    cursor: pointer;
    transition: 0.5s;
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0px 0px 20px 5px rgba(0, 123, 255, 0.4);
    border-color: #007bff;
}
.acer{
    text-decoration: none;
    color: #11120D;
    background-color: #FFFBF4 ;
}

.cerT h2{
     margin-top: 12rem;
    text-align: center;

}
.cerT .alce{
    margin-top: 3%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    row-gap: 10px;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
}
.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--white-color);
}

/* --- Responsive Design (Mobile & Tablets) --- */
@media (max-width: 992px) {
    .skills-list {
        row-gap: 3rem;
    }
    .pgrm {
        width: 45%;
        min-width: 300px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    .navbar .nav-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
    }
    .navbar h3 {
        margin-left: 0;
        text-align: left;
    }
    .navbar .nav-container ul {
        display: none;
        width: 100%;
        flex-direction: column;
        text-align: center;
        gap: 10px;
        padding: 10px 0;
    }
    .navbar .nav-container ul.active {
        display: flex;
    }
    .navbar .nav-container ul li .abt-line {
        margin: 0;
    }
    .pgrm {
        width: 90%;
        margin: 0 auto;
    }
    .cer-1, .cer-2, .cer-3, .cer-4, .cer-5 {
        width: 90%;
        margin: 0 auto 8% auto;
    }
    .cerT h2 {
        margin-top: 5rem;
    }
}