/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* Header styles */
.header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    justify-content: flex-end;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #007bff;
}

/* Main layout */
.container-wrapper {
    display: flex;
    max-width: 1200px;
    margin: 80px auto 0;
    padding: 2rem;
    gap: 2rem;
}

/* Sidebar styles */
.sidebar {
    width: 300px;
    position: sticky;
    top: 100px;
    height: fit-content;
}

.profile-section {
    background-color: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

.profile-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 3px solid #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.title {
    color: #666;
    margin-bottom: 1rem;
}

/* Social icons */
.social-icons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-icons a {
    color: #666;
    transition: color 0.3s;
}

.social-icons a:hover {
    color: #007bff;
}

/* Main content area */
.main-content {
    flex: 1;
    background-color: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.content-container h2 {
    color: #2c3e50;
    margin: 2rem 0 1rem;
}

.content-container p {
    margin-bottom: 1rem;
}

.content-container a {
    color: #007bff;
    text-decoration: none;
}

.content-container a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background-color: #fff;
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    box-shadow: 0 -2px 5px rgba(0,0,0,0.1);
}

/* Responsive design */
@media (max-width: 768px) {
    .container-wrapper {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        position: static;
    }

    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: block;
    }
}

/* Navigation toggle button */
.nav-toggle {
    display: none;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px 0;
    transition: 0.4s;
}