/* Reset & Basic Styles */

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

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f9f9f9;
}

a {
  color: #0077cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Layout & Navbar */

.site-header {
  background: #fff;
  border-bottom: 1px solid #ddd;
  padding: 10px 20px;
}

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

.logo {
  font-size: 1.8em;
  font-weight: bold;
}

.nav-links {
  list-style: none;
  display: flex;
}

.nav-links li {
  margin-left: 20px;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: 4px;
}

.nav-links a.active,
.nav-links a:hover {
  background: #0077cc;
  color: #fff;
}

/* Main Containers */

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px;
}

/* Home Page Styles */

.home-main .intro-container {
  text-align: center;
  margin-top: 60px;
}

.home-main .intro-container img {
  width: 200px;
  height: auto;
  border-radius: 50%;
}

.home-main h1 {
  font-size: 2.5em;
  margin-top: 20px;
}

.home-main h2 {
  font-size: 1.5em;
  color: #666;
  margin: 10px 0;
}

.social-links {
  margin: 20px 0;
}

.social-links a {
  margin: 0 10px;
  font-size: 1em;
}

/* Button */

.btn {
  display: inline-block;
  padding: 10px 25px;
  background-color: #0077cc;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover {
  background-color: #005fa3;
}

/* About Page */

.about-main .about-container {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 20px;
  margin-top: 40px;
}

.about-main img {
  width: 250px;
  height: auto;
  border-radius: 8px;
}

.about-text {
  flex: 1;
}

/* Research & Publications Page */

.research-main h1 {
  margin-bottom: 30px;
}

.research-main section {
  margin-bottom: 40px;
}

.research-main .research-title {
  font-size: 1.8em;
  margin-bottom: 10px;
}

.research-main .publication {
  margin-bottom: 20px;
}

/* Blog Page */

.blog-main .post {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 25px;
  box-shadow: 0px 2px 5px rgba(0,0,0,0.1);
}

.blog-main .post h2 {
  margin-bottom: 10px;
}

.blog-main .post .meta {
  color: #777;
  font-size: 0.9em;
  margin-bottom: 15px;
}

.blog-main .post .excerpt {
  margin-bottom: 10px;
}

.blog-main .read-more {
  color: #0077cc;
  cursor: pointer;
}

/* Contact Page Styles */

.contact-main .container {
  margin-top: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: bold;
  margin-bottom: 5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.error-message {
  color: red;
  font-size: 0.9em;
  visibility: hidden;
}

/* Footer */

.site-footer {
  background: #333;
  color: #fff;
  text-align: center;
  padding: 20px 0;
  margin-top: 60px;
}

/* Responsive Breakpoints */

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .navbar {
    flex-wrap: wrap;
  }
  .logo {
    margin-bottom: 10px;
  }
  /* Could add a mobile menu toggle later */
  
  .about-main .about-container {
    flex-direction: column;
    align-items: center;
  }

  .home-main .intro-container img {
    width: 150px;
  }
}


.menu-toggle {
  display: none;
  font-size: 1.8em;
  background: none;
  border: none;
  cursor: pointer;
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
    color: #333;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background-color: #fff;
    padding: 10px 0;
    position: absolute;
    top: 60px;
    left: 0;
    z-index: 10;
    border-top: 1px solid #ddd;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    margin: 10px 0;
    text-align: center;
  }

  .navbar {
    position: relative;
  }
}

.event {
  background-color: #fff;
  text-align: center;
  padding: 15px;
  border-left: 4px solid #0077cc;
  margin-bottom: 15px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}