/* Global Styles */
body {
    font-family: 'Lato', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 17px;
    line-height: 1.55;
    color: #333;
    background-color: #f9f9f9;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 500;
    color: #2c3e50;
}

a {
    color: #3498db;
    transition: color 0.2s ease;
}

a:hover {
    color: #2980b9;
    text-decoration: none;
}

/* Navigation Bar */
.navbar-default {
    background-color: #fff;
    border-bottom: 1px solid #eee;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.navbar-default .navbar-nav > li > a {
    color: #555;
    font-weight: 500;
    font-size: 18px;
}

.navbar-default .navbar-brand {
    font-size: 26px;
    font-weight: 600;
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus {
    color: #3498db;
    background-color: transparent;
}

/* Profile Section */
.thumbnail {
    border: none;
    background: none;
    padding: 0;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    border-radius: 8px;
    overflow: hidden;
}

.thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

.profile-info h1 {
    margin-top: 0;
    font-weight: 700;
    font-size: 46px;
    line-height: 1.15;
}

.profile-info h4 {
    font-size: 24px;
    margin-top: 8px;
    margin-bottom: 10px;
}

.profile-info p {
    font-size: 18px;
}

.social-icons a {
    margin-right: 10px;
    color: #555;
}

.social-icons i {
    font-size: 2.35em;
}

.social-icons a:hover {
    color: #3498db;
}

/* Section Headers */
h2 {
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
    margin-bottom: 24px;
    display: inline-block;
    font-size: 34px;
}

/* News Section */
.news-item {
    margin-bottom: 15px;
    display: flex;
    align-items: baseline;
    font-size: 17px;
}

.news-date {
    min-width: 80px;
    font-weight: bold;
    color: #3498db;
    margin-right: 15px;
}

.news-content {
    flex: 1;
}

/* Research / Projects Section */
.research-item {
    background: #fff;
    padding: 24px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    transition: transform 0.2s ease;
}

.research-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.research-thumb {
    width: 100%;
    border-radius: 4px;
    margin-bottom: 12px;
}

.research-title {
    font-size: 24px;
    font-weight: bold;
    margin-top: 0;
    margin-bottom: 10px;
}

.research-authors {
    color: #666;
    font-style: italic;
    margin-bottom: 5px;
}

.research-venue {
    color: #2c3e50;
    font-weight: 500;
    font-size: 18px;
}

@media (max-width: 767px) {
    body {
        font-size: 16px;
    }

    .profile-info h1 {
        font-size: 36px;
        margin-top: 10px;
    }

    .profile-info h4 {
        font-size: 21px;
    }

    .profile-info p,
    .news-item,
    .research-venue {
        font-size: 16px;
    }

    .navbar-default .navbar-nav > li > a {
        font-size: 17px;
    }

    h2 {
        font-size: 30px;
    }

    .research-title {
        font-size: 22px;
    }
}

/* Footer */
footer {
    margin-top: 50px;
    padding: 20px 0;
    border-top: 1px solid #eee;
    color: #777;
}