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

body{

font-family:Arial,Helvetica,sans-serif;

background:#f3f4f7;

color:#222;

}

a{

text-decoration:none;

color:#0066cc;

}

.topbar{

background:#ffffff;

padding:15px 40px;

display:flex;

justify-content:space-between;

align-items:center;

box-shadow:0 2px 8px rgba(0,0,0,.08);

}

.logo{

font-size:34px;

font-weight:bold;

color:#d60000;

}

.search input{

width:400px;

padding:12px;

border-radius:30px;

border:1px solid #ddd;

}

.account a{

margin-left:15px;

font-weight:bold;

}

nav{

background:#0b2c55;

}

nav ul{

display:flex;

list-style:none;

}

nav ul li{

position:relative;

}

nav ul li a{

display:block;

padding:18px 22px;

color:white;

}

nav ul li:hover{

background:#163f73;

}

.dropdown ul{

display:none;

position:absolute;

background:white;

min-width:230px;

box-shadow:0 5px 15px rgba(0,0,0,.2);

z-index:999;

}

.dropdown:hover ul{

display:block;

}

.dropdown ul li a{

color:#222;

padding:12px;

}

.dropdown ul li:hover{

background:#f2f2f2;

}

.container{

max-width:1400px;

margin:auto;

padding:30px;

display:grid;

grid-template-columns:2fr 1fr;

gap:25px;

}

.card{

background:white;

border-radius:10px;

padding:20px;

box-shadow:0 2px 10px rgba(0,0,0,.08);

margin-bottom:20px;

}

.topic{

padding:15px 0;

border-bottom:1px solid #eee;

}

.topic:last-child{

border:none;

}

.topic h3{

margin-bottom:8px;

}

.hero{

background:white;

padding:40px;

border-radius:10px;

box-shadow:0 2px 10px rgba(0,0,0,.08);

margin-bottom:25px;

}

.hero h1{

font-size:42px;

margin-bottom:20px;

}

.hero p{

font-size:18px;

line-height:1.7;

}

.footer{

margin-top:50px;

background:#222;

color:white;

padding:35px;

display:flex;

justify-content:space-between;

}

.footer a{

color:white;

margin-left:15px;

}

@media(max-width:900px){

.container{

grid-template-columns:1fr;

}

.search input{

width:100%;

}

.topbar{

flex-direction:column;

gap:20px;

}

nav ul{

flex-direction:column;

}

}