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

body {
    background-color: #0b0c2a;
    color: #fff;
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
}

header {
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    padding: 0 40px;
    background-color: #16173d;
}

nav .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #00d9ff;
}

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

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    text-decoration: none;
    color: white;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #00d9ff;
}

section {
    padding: 60px 80px;
}

.intro {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}

.intro-text {
    flex: 1;
    padding-right: 20px;
}

.intro-text h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.intro-text p {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.intro-img img {
    width: 250px;
    border-radius: 50%;
    border: 3px solid #00d9ff;
}

.about,
.projects,
.skills,
.contact {
    background-color: #141538;
    margin: 20px 0;
    border-radius: 8px;
    padding: 40px;
}

h2 {
    margin-bottom: 20px;
    color: #00d9ff;
    font-size: 2rem;
}

.projects .project {
    margin-bottom: 20px;
}

.skills ul {
    list-style: square inside;
}

.contact form {
    display: flex;
    flex-direction: column;
}

.contact input,
.contact textarea {
    padding: 10px;
    margin: 8px 0;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
}

.contact button {
    padding: 10px;
    background: #00d9ff;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.contact button:hover {
    background: #00aacc;
}

footer {
    text-align: center;
    padding: 15px;
    background-color: #16173d;
    margin-top: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    section {
        padding: 40px 20px;
    }

    .intro {
        flex-direction: column;
        text-align: center;
    }

    .intro-text {
        padding: 0;
    }

    .intro-img {
        margin-top: 20px;
    }
}