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

body {
    font-family: Segoe UI, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    background: #0f172a;
    color: white;
}

nav {
    max-width: 1200px;
    margin: auto;
    padding: 20px;

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

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

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

.hero {
    padding: 100px 20px;
    text-align: center;
}

.hero h2 {
    font-size: 3rem;
}

.hero p {
    margin: 20px auto;
    max-width: 800px;
}

.btn {
    background: #2563eb;
    color: white;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 6px;
}

section {
    max-width: 1200px;
    margin: auto;
    padding: 80px 20px;
}

.cards {
    display: grid;
    gap: 20px;

    grid-template-columns:
        repeat(auto-fit, minmax(250px, 1fr));
}

.card {
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
}

.skills li {
    background: #e0e7ff;
    padding: 10px 15px;
    border-radius: 20px;
}

footer {
    text-align: center;
    padding: 30px;
    background: #0f172a;
    color: white;
}