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

body{
    background:#f5f5f5;
    color:#333;
    transition:.3s;
}

header{
    background:#333;
    color:white;
    padding:20px;
}

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

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

nav a{
    color:white;
    text-decoration:none;
}

.hero{
    text-align:center;
    padding:80px 20px;
    background:#0a1420;
    color:white;
}

section{
    padding:50px;
}

.project-card{
    background:white;
    padding:20px;
    margin:20px 0;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,.1);
}

form{
    display:flex;
    flex-direction:column;
    gap:15px;
    max-width:400px;
}

input,
textarea{
    padding:10px;
}

button{
    padding:10px;
    border:none;
    background:#0077ff;
    color:white;
    cursor:pointer;
}

button:hover{
    background:#0059c7;
}

footer{
    text-align:center;
    padding:30px;
    background:#333;
    color:white;
}

.back-btn{
    display:inline-block;
    margin-bottom:15px;
    padding:10px 20px;
    background:#0077ff;
    color:white;
    text-decoration:none;
    border-radius:5px;
}

.back-btn:hover{
    background:#0059c7;
}

.dark{
    background:#121212;
    color:white;
}

.dark .project-card{
    background:#1f1f1f;
}

.dark header,
.dark footer{
    background:#000;
}

.profile-pic{
    display: block;
    width: 350px;
    margin: 20px auto;
}