*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:Arial, Helvetica, sans-serif;
}

body{
line-height:1.6;
}

/* NAVBAR */

header{

background: linear-gradient(90deg, #0f2027, #203a43, #2c5364);
color:white;
padding:10px 0;

}

.container{
width:90%;
margin:auto;
}

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

.logo{
font-size:24px;
font-weight:bold;
}

nav ul{
list-style:none;
display:flex;
}

nav ul li{
position:relative;
}

nav ul li a{
display:block;
padding:12px 18px;
color:white;
text-decoration:none;
}

nav ul li:hover{
background: linear-gradient(90deg,#0f2027, #2c5364);
}

/* Dropdown */

/* dropdown */

.dropdown{

display:none;
position:absolute;
top:45px;
min-width:180px;

background: linear-gradient(180deg,#0f2027, #2c5364);

box-shadow:0 5px 10px rgba(0,0,0,0.2);

}

.dropdown li{
list-style:none;
}

.dropdown a{
padding:10px;
display:block;
}
.dropdown a:hover{

background: linear-gradient(90deg,#4facfe,#00c6ff);

color:white;

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

/* mobile dropdown */

@media(max-width:768px){

    nav ul{

background: linear-gradient(180deg,#1e3c72,#2a5298);

}
.dropdown{

position:static;

}

.has-dropdown.active .dropdown{

display:block;

}

}

/* SLIDER */


.slider{
position:relative;
width:100%;
height:400px;
overflow:hidden;
}

.slides{
display:flex;
transition:transform 0.9s ease;
width:100%;
}

.slides img{
width:100%;
min-width:100%;
height:400px;
object-fit:cover;
flex-shrink:0;
}

/* arrows */

.prev, .next{

position:absolute;
top:50%;
transform:translateY(-50%);

background:rgba(0,0,0,0.5);
color:white;

border:none;
padding:10px 15px;
cursor:pointer;
font-size:22px;

}

.prev{ left:10px; }
.next{ right:10px; }

/* dots */

.dots{
position:absolute;
bottom:15px;
width:100%;
text-align:center;
}

.dots span{

display:inline-block;
width:10px;
height:10px;

background:white;
margin:5px;
border-radius:50%;
cursor:pointer;

opacity:0.5;

}

.dots span.active{
opacity:1;
background:#ffd700;
}

/* SECTION */

section{
padding:50px 0;
}

.section-title{

text-align:center;
margin-bottom:30px;
font-size:28px;

background: linear-gradient(45deg,#0f2027,#2c5364);
-webkit-background-clip:text;
color:transparent;

}

/* ABOUT */

.about{
text-align:center;
max-width:900px;
margin:auto;
}

/* BOARD */

.board{
display:grid;
grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
gap:20px;
}

.member{

background: linear-gradient(145deg,#ffffff,#e6eef5);
padding:20px;
text-align:center;
border-radius:8px;
box-shadow:0 5px 10px rgba(0,0,0,0.1);

}

.member img{
width:100px;
height:auto;
border-radius:0%;
margin-bottom:10px;
}

/* GALLERY */

.gallery{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
gap:10px;
}

.gallery img{
width:100%;
border-radius:6px;
}

/* CONTACT */

.contact{
max-width:600px;
margin:auto;
}

.contact input,
.contact textarea{
width:100%;
padding:10px;
margin-bottom:10px;
border:1px solid #ccc;
border-radius:5px;
}

.contact button{

background: linear-gradient(45deg, #1e3c72, #2a5298);
color:white;
border:none;
padding:12px 20px;
cursor:pointer;
border-radius:4px;

}
.contact button:hover{

background: linear-gradient(45deg, #2a5298, #1e3c72);

}
.contact-wrapper{

display:flex;
gap:40px;
align-items:flex-start;
flex-wrap:wrap;

}

.contact-info{

flex:1;
min-width:250px;

}

.contact-map{

flex:1;
min-width:300px;

}

.contact-info h3{

margin-top:10px;
color:#0b3d91;

}
/* FOOTER */

footer{

background: linear-gradient(90deg,#203a43,#2c5364);
color:white;
text-align:center;
padding:15px;
margin-top:20px;

}

/* RESPONSIVE */

@media(max-width:768px){

nav ul{
flex-direction:column;
background:#0b3d91;
}

}

#topBtn {

display:none;
position:fixed;
bottom:30px;
right:30px;
z-index:99;

font-size:18px;

background: linear-gradient(45deg,#1e3c72,#2a5298);
color:white;

border:none;
outline:none;

cursor:pointer;

padding:12px 16px;
border-radius:50%;

box-shadow:0 3px 6px rgba(0,0,0,0.3);

}

#topBtn:hover{

background:#1565c0;

}

/* Hamburger button */

.menu-toggle{

display:none;
font-size:26px;
cursor:pointer;
color:white;

}

/* Mobile */

@media(max-width:768px){

.menu-toggle{
display:block;
}

nav{
flex-wrap:wrap;
}

nav ul{

width:100%;
flex-direction:column;
display:none;
background:#0b3d91;

}

nav ul.active{
display:flex;
}

nav ul li{
text-align:left;
border-top:1px solid rgba(255,255,255,0.2);
}

.dropdown{

position:static;

}

}

@media(max-width:768px){

.slider{
height:250px;
}

.slides img{
height:250px;
}

}

@media(max-width:420px){

.slider{
height:150px;
}

.slides img{
height:150px;
}

}

.phone{
color:inherit;
text-decoration:none;
font-weight:normal;
}

.email{
color:inherit;
text-decoration:none;
font-weight:normal;
}

@media (min-width:1240px){

.slider{
height:450px;
}

.slides img{
height:450px;
}

}