/* ===============================
   Metamaterials & Nanophotonics
   Modernized CSS
   =============================== */

/* === Fonts === */
body {
  font-family: 'Open Sans', Arial, sans-serif;
  color: #333;
  background-color: #fff;
  line-height: 1.6;
}

h1, h2, h3, h4, .navbar-nav > li > a {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  color: #1E3C72;
}

/* === Navigation bar === */
#headerNavigationContainer {
  background: #fff;
  border-bottom: 2px solid #1E3C72;
}

.navbar-nav > li > a {
  color: #1E3C72 !important;
  font-weight: 500;
  text-transform: uppercase;
  padding: 15px 20px;
  transition: all 0.3s ease;
}

.navbar-nav > li > a:hover,
.navbar-nav > .active > a {
  color: #fff !important;
  background: linear-gradient(90deg, #1E3C72, #2A5298);
  border-radius: 6px;
}

/* === Dropdown menu === */
.dropdown-menu {
  background: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 6px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.dropdown-menu > li > a {
  color: #1E3C72;
  padding: 10px 15px;
}

.dropdown-menu > li > a:hover {
  background: #2A5298;
  color: #fff;
}

/* === Banner === */
.journal-banner {
  background: linear-gradient(rgba(30,60,114,0.6), rgba(42,82,152,0.6)), url('/public/site/banner-mnp.jpg') center/cover no-repeat;
  padding: 100px 20px;
  text-align: center;
  color: white;
  border-radius: 12px;
  margin: 30px 0;
}

.journal-banner h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.journal-banner p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 30px;
}

/* === Buttons === */
.btn, .btn-primary {
  background: linear-gradient(90deg, #1E3C72, #2A5298);
  border: none;
  color: #fff !important;
  border-radius: 25px;
  padding: 10px 25px;
  font-weight: 600;
  text-transform: uppercase;
  transition: all 0.3s ease;
}

.btn:hover, .btn-primary:hover {
  background: linear-gradient(90deg, #2A5298, #1E3C72);
  color: #fff !important;
  text-decoration: none;
}

/* === Homepage sections === */
.homepage_about, .current_issue, .additional_content {
  margin: 40px 0;
  padding: 20px;
  background: #fdfdfd;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.homepage_about h2,
.current_issue h2 {
  font-size: 1.6rem;
  margin-bottom: 15px;
  border-left: 5px solid #1E3C72;
  padding-left: 10px;
}

/* === Issue list styling === */
.current_issue_title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: #2A5298;
}

.read_more {
  display: inline-block;
  margin-top: 20px;
  font-weight: 600;
  color: #1E3C72;
}

.read_more:hover {
  color: #2A5298;
  text-decoration: underline;
}

/* === Footer === */
#footer {
  background: #1E3C72;
  color: #fff;
  padding: 30px 20px;
  margin-top: 40px;
}

#footer a {
  color: #fff;
}

#footer a:hover {
  text-decoration: underline;
}