*{
    margin:0;
    padding:0;
}

.navbar{
    background:white;
    height:90px;

    display:flex;
    justify-content:space-between;
    align-items:center;

    padding:0 60px;
}

.logo img{
    height:90px;
}

.nav-links{
    display:flex;
    list-style:none;
    gap:45px;
}

.nav-links a{
    text-decoration:none;
    color:black;
    font-size:18px;
    font-weight:bold;
    font-family:Arial, sans-serif;
}

.nav-links a.active{
    color:black;
}

.nav-links a:hover{
    color:black;
}

.dropdown{
    position: relative;
}

.dropdown-content{
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 280px;
    list-style: none;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    overflow: hidden;
    z-index: 1000;
}

.dropdown-content li a{
    display: block;
    padding: 15px 22px;
    text-decoration: none;
    color: #002053;
    font-size: 17px;
    font-family: "Trebuchet MS", Arial, sans-serif;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.dropdown-content li a:hover{
    background: #002053;
    color: white;
    padding-left: 30px;
}

.dropdown:hover .dropdown-content{
    display: block;
}

.project-header{
    width:90%;
    margin:70px auto;
    text-align:center;
}

.project-header h1{
    font-size:42px;
    color:#002053;
    margin-bottom:25px;
    letter-spacing:1px;
}

.project-header p{
    width:80%;
    margin:auto;
    font-size:18px;
    line-height:1.9;
    color:#555;
    text-align:center;
}

.projects-grid{
    width:90%;
    margin:50px auto;
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:35px;
}

.project-card{
    background:#ffffff;
    border-radius:18px;
    overflow:hidden;
    box-shadow:0 8px 20px rgba(0,0,0,.12);
    transition:0.35s;
    cursor:pointer;
}

.project-card:hover{
    transform:translateY(-8px);
    box-shadow:0 15px 35px rgba(0,0,0,.20);
}

.project-card img{
    width:100%;
    height:260px;
    object-fit:cover;
    display:block;
    transition:.4s;
}

.project-card:hover img{
    transform:scale(1.05);
}

.project-card h3{
    color:#002053;
    font-size:22px;
    text-align:center;
    margin:20px 15px 12px;
}

.project-card p{
    font-size:16px;
    color:#666;
    line-height:1.7;
    text-align:center;
    padding:0 18px 25px;
}

.project-card span{
    display:inline-block;
    background:#002053;
    color:white;
    padding:6px 15px;
    border-radius:20px;
    font-size:13px;
    margin:15px auto 0;
}

.project-card img:hover{
    opacity:.95;
}

@media(max-width:1200px){
.projects-grid{
grid-template-columns:repeat(3,1fr);
}
}

@media(max-width:850px){
.projects-grid{
grid-template-columns:repeat(2,1fr);
}
}

@media(max-width:550px){
.projects-grid{
grid-template-columns:1fr;
}

.project-header h1{
font-size:32px;
}

.project-header p{
width:95%;
font-size:16px;
}
}

.modal{
    display:none;
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background:rgba(0,0,0,0.92);
    justify-content:center;
    align-items:center;
    flex-direction:column;
    z-index:9999;
}

.modal-image{
    max-width:85%;
    max-height:80%;
    border-radius:15px;
    box-shadow:0 10px 30px rgba(255,255,255,.15);
    animation:zoom .35s ease;
}

@keyframes zoom{

    from{
        transform:scale(.8);
        opacity:0;
    }

    to{
        transform:scale(1);
        opacity:1;
    }

}

.close{
    position:absolute;
    top:20px;
    right:35px;
    color:white;
    font-size:50px;
    cursor:pointer;
    transition:.3s;
}

.close:hover{
    color:#ff4d4d;
}

.prev,
.next{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    border:none;
    background:rgba(255,255,255,.15);
    color:white;
    font-size:45px;
    width:60px;
    height:60px;
    border-radius:50%;
    cursor:pointer;
    transition:.3s;
}

.prev{
    left:35px;
}

.next{
    right:35px;
}

.prev:hover,
.next:hover{
    background:#002053;
}

.download-popup{
    margin-top:25px;
    background:#002053;
    color:white;
    text-decoration:none;
    padding:14px 35px;
    border-radius:30px;
    font-weight:bold;
    font-size:17px;
    transition:.3s;
}

.download-popup:hover{
    background:#0044aa;
}

body{
    padding-bottom:40px;
}