body {
    margin: 0;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 14px;
    line-height: 1.42857143;
    color: #333;
    background-color: #fff;
}

/* Navigation Bar */
.navbar {
    border: 1px solid #e7e7e7;
    background-color: #f8f8f8;
    min-height: 50px;
    margin-bottom: 20px;
}

.navbar-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    color: #777;
    font-size: 18px;
    padding: 15px;
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar-nav li a {
    color: #777;
    text-decoration: none;
    padding: 15px;
    display: block;
}

.navbar-nav li a:hover {
    color: #333;
    background-color: transparent;
}

.navbar-nav li a {
    position: relative; /* Needed for absolute positioning of the underline */
}

.navbar-nav li a:hover::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #999;
}


.active a {
    color: #555 !important;
    background-color: #e7e7e7 !important;
}

/* Page Layout */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    display: flex;
}

/* Sidebar - made smaller than original */
.sidebar {
    width: 200px; /* Reduced from original */
    padding-right: 30px;
    float: left;
}

.sidebar img {
    max-width: 100%;
    border-radius: 50%;
    margin-bottom: 20px;
}

.sidebar h1 {
    font-size: 22px;
    margin-top: 0;
}

.sidebar p {
    font-size: 14px;
    line-height: 1.5;
}

/* Main content area */
.main-content {
    flex: 1;
    max-width: 900px;
    padding: 0 20px;
    border-left: 1px solid #e7e7e7;
    min-height: 600px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .page-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        padding-right: 0;
        text-align: center;
    }
    .main-content {
        border-left: none;
        border-top: 1px solid #e7e7e7;
        padding-top: 20px;
    }
}


/* Cards Container */
.cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin: 20px 0;
}

/* Individual Card */
.card {
  background-color: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

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

/* Card Header */
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 15px;
}

.card-header h3 {
  margin: 0;
  font-size: 18px;
  flex: 1;
}

.card-year {
  background-color: #f0f0f0;
  color: #555;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: bold;
}

/* Card Content */
.card-content {
  flex: 1;
  margin-bottom: 15px;
}

.card-content p {
  margin: 8px 0;
  font-size: 14px;
}

.card-authors {
  font-style: italic;
  color: #777;
}

/* Card Tags */
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 10px;
}

.tag {
  background-color: #f0f0f0;
  color: #555;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 12px;
}

/* Card Footer */
.card-footer {
  display: flex;
  gap: 10px;
  margin-top: auto;
}

.card-link {
  font-size: 14px;
  color: #777;
  padding: 5px 10px;
  border-radius: 4px;
  background-color: rgba(0, 0, 0, 0.05);
  transition: background-color 0.3s;
}

.card-link:hover {
  background-color: rgba(0, 0, 0, 0.1);
  color: #333;
}

/* Responsive Cards */
@media (max-width: 768px) {
  .cards-container {
    grid-template-columns: 1fr;
  }
}