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

body{
font-family:Arial,sans-serif;
background:#0d1117;
color:#fff;
line-height:1.6;
}

.container{
max-width:1100px;
margin:auto;
padding:20px;
}

.header{
background:#111827;
}

.logo{
font-size:30px;
font-weight:bold;
}

.logo span{
color:#ff6a00;
}

nav ul{
display:flex;
gap:20px;
list-style:none;
}

nav a{
color:#fff;
text-decoration:none;
}

.hero{
padding:100px 0;
}

h1{
font-size:56px;
margin-bottom:20px;
}

.button,button{
background:#ff6a00;
color:#fff;
padding:14px 24px;
border:none;
border-radius:8px;
text-decoration:none;
cursor:pointer;
}

.section{
padding:80px 0;
}

.dark{
background:#111827;
}

.grid{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:20px;
}

.card{
background:#1f2937;
padding:30px;
border-radius:10px;
}

form{
display:flex;
flex-direction:column;
gap:15px;
}

input,textarea{
padding:14px;
border-radius:8px;
border:1px solid #374151;
background:#111827;
color:#fff;
}

footer{
padding:40px 0;
border-top:1px solid #374151;
}

footer a{
color:#fff;
margin-right:20px;
}

@media(max-width:768px){
.grid{
grid-template-columns:1fr;
}

nav ul{
flex-direction:column;
}

h1{
font-size:38px;
}
}