*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:'Poppins',sans-serif;
scroll-behavior:smooth;
}

body{
background:#fff;
color:#333;
transition:.3s;
}

body.dark{
background:#111;
color:#fff;
}

.container{
width:90%;
max-width:1100px;
margin:auto;
}

header{
position:sticky;
top:0;
background:#111;
padding:15px 0;
z-index:1000;
}

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

header h1{
color:#fff;
}

nav a{
color:#fff;
margin-left:20px;
text-decoration:none;
}

#theme-toggle{
background:none;
border:none;
color:#fff;
font-size:20px;
cursor:pointer;
}

.hero{
background:linear-gradient(to right,#00adb5,#0077ff);
color:#fff;
text-align:center;
padding:120px 20px;
}

.profile{
width:150px;
border-radius:50%;
margin-bottom:20px;
border:4px solid #fff;
}

.btn{
display:inline-block;
margin-top:20px;
padding:10px 25px;
background:#fff;
color:#0077ff;
border-radius:5px;
text-decoration:none;
font-weight:bold;
}

section{
padding:80px 20px;
text-align:center;
}

.cards{
display:flex;
flex-wrap:wrap;
gap:20px;
justify-content:center;
margin-top:30px;
}

.card{
background:#f4f4f4;
padding:20px;
border-radius:10px;
width:300px;
transition:.3s;
}

body.dark .card{
background:#222;
}

.card:hover{
transform:translateY(-10px);
}

.gallery{
display:flex;
gap:20px;
justify-content:center;
flex-wrap:wrap;
margin-top:30px;
}

.project{
width:300px;
text-align:center;
}

.project img{
width:100%;
border-radius:10px;
}

form{
max-width:500px;
margin:auto;
display:flex;
flex-direction:column;
gap:15px;
}

input, textarea{
padding:10px;
border-radius:5px;
border:1px solid #ccc;
}

button{
padding:10px;
background:#00adb5;
color:#fff;
border:none;
border-radius:5px;
cursor:pointer;
}

footer{
background:#111;
color:#fff;
text-align:center;
padding:20px;
margin-top:40px;
}

.whatsapp{
position:fixed;
bottom:20px;
right:20px;
background:#25D366;
color:#fff;
padding:12px 18px;
border-radius:50px;
text-decoration:none;
}

/* Animation */
.fade-in{
opacity:0;
transform:translateY(30px);
transition:1s;
}

.fade-in.show{
opacity:1;
transform:translateY(0);
}

@media(max-width:768px){
.cards, .gallery{
flex-direction:column;
align-items:center;
}
}