:root {
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --text-color: #333;
    --bg-light: #f4f7f6;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    color: var(--text-color);
}

.container {
    max-width: 1000px;
    margin: auto;
    padding: 3rem 1rem;
}

header {
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
}

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

nav ul li {
    margin-left: 20px;
}

nav a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
}

#hero {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 5rem 1rem;
}

.profile-img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 5px solid white;
    object-fit: cover;
    margin-bottom: 1rem;
}

.tags span {
    background: var(--accent-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    margin: 0 5px;
}

.bg-light { background: var(--bg-light); }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.card i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

footer {
    text-align: center;
    padding: 4rem 1rem;
    background: #222;
    color: #ccc;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    margin: 0 10px;
}

.copyright { margin-top: 2rem; font-size: 0.8rem; }