/* Body background and font */
body {
  background-color: #e6f2f9;
  font-family: Arial, sans-serif;
  color: #222;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

/* Reset some basics */
h1, h2, h3, h4, h5, h6, p, ul, li, nav, footer {
  margin: 0;
  padding: 0;
}

/* Responsive large logo images */
.header img, .pkp_site_name img, .navbar-branding img {
  display: block;
  margin: 0 auto;
  width: 100%;
  max-width: 1000px;
  height: auto;
}

/* Custom header and logo styles */
header.site-header {
  display: flex;
  align-items: center;
  background-color: #004080; /* deep blue */
  padding: 15px 20px;
}
header.site-header .logo {
  flex-shrink: 0;
}
header.site-header .logo img {
  max-height: 150px;
  width: auto;
  display: block;
}
header.site-header nav.main-menu {
  margin-left: 30px;
  flex-grow: 1;
}
nav.main-menu ul {
  list-style: none;
  display: flex;
  gap: 25px;
}
nav.main-menu ul li {
  display: inline-block;
}
nav.main-menu ul li a {
  text-decoration: none;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  transition: color 0.3s ease;
}
nav.main-menu ul li a:hover,
nav.main-menu ul li a:focus {
  color: #ffcc00; /* bright yellow highlight */
}

/* Footer styling overrides */
.pkp_site_footer {
  background-color: #d0e7f4; /* light blue */
  color: #000;
  text-align: center;
  padding: 20px;
  font-size: 14px;
}
.pkp_site_footer a {
  color: #000;
  margin: 0 10px;
  text-decoration: none;
}
.pkp_site_footer a:hover {
  text-decoration: underline;
}

/* Remove default PKP/OJS logo in footer */
.pkp_site_footer img[src*="pkp_logo.png"] {
  display: none !important;
}

/* Circular images for editorial team or other places */
.circular-img {
  border-radius: 50%;
  width: 120px;
  height: 120px;
  object-fit: cover;
  display: block;
  margin: 0 auto 10px;
}

/* Responsive menu */
@media (max-width: 768px) {
  header.site-header {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  nav.main-menu ul {
    flex-direction: column;
    gap: 10px;
    align-items: center;
  }
}