:root {
  --background-color: #121212;
  --card-background: #1e1e1e;
  --text-color: #e0e0e0;
  --accent-color: #bb86fc;
  --secondary-color: #03dac6;
  --error-color: #cf6679;
  --header-color: #2d2d2d;
  --hover-color: #3d3d3d;
  --link-color: #03a9f4;
  --link-hover-color: #bb86fc; 
  --modal-background: rgba(0, 0, 0, 0.85);
  --modal-content-background: #242424;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: var(--header-color);
  padding: 20px 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  position: sticky;
  top: 0;
  z-index: 100;
  text-align: center;
}

header h1 {
  color: var(--accent-color);
  font-size: 1.8rem;
}

main {
  padding: 30px 0;
  min-height: calc(100vh - 60px);
}

.filter-section {
  margin: 50px 0 30px 0;
}

.filter-section h2 {
  margin-bottom: 15px;
  color: var(--accent-color);
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.filter-btn {
  background-color: var(--card-background);
  color: var(--text-color);
  border: none;
  padding: 8px 15px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover {
  background-color: var(--hover-color);
}

.filter-btn.active {
  background-color: var(--accent-color);
  color: #121212;
}

.news-section {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
  margin-bottom: 60px;
}

.news-card {
  background-color: var(--card-background);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.news-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.news-category {
  display: inline-block;
  background-color: var(--secondary-color);
  color: #121212;
  padding: 5px 10px;
  border-radius: 15px;
  font-size: 0.8rem;
  margin-bottom: 10px;
  align-self: flex-start;
}

.news-title {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--accent-color);
}

.news-text {
  color: var(--text-color);
  font-size: 0.95rem;
  flex-grow: 1;
  margin-bottom: 15px;
}

.news-link {
  color: var(--link-color);
  text-decoration: none;
  font-weight: 500;
  margin-top: auto;
  display: inline-block;
  transition: color 0.2s ease;
}

.news-link:hover {
  color: var(--link-hover-color); 
  border-bottom: none; 
}

.loading {
  grid-column: 1 / -1;
  text-align: center;
  padding: 30px;
  font-style: italic;
  color: var(--text-color);
}

.empty-message {
  grid-column: 1 / -1;
  text-align: center;
  padding: 30px;
  background-color: var(--card-background);
  border-radius: 10px;
}

.more-content {
  background-color: var(--card-background);
  border-radius: 10px;
  padding: 30px;
  margin-bottom: 100px;
}

.more-content h2 {
  color: var(--accent-color);
  margin-bottom: 15px;
}

.more-content p {
  color: var(--text-color);
  line-height: 1.8;
}

/* Providing more space at the bottom to allow for more scrolling */
main::after {
  content: "";
  display: block;
  height: 120px;
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: 200;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: var(--modal-background);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal.show {
  display: block;
  opacity: 1;
}

.modal-content {
  background-color: var(--modal-content-background);
  margin: 5% auto;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  width: 80%;
  max-width: 800px;
  transform: translateY(-20px);
  transition: transform 0.3s ease;
  position: relative;
}

.modal.show .modal-content {
  transform: translateY(0);
}

.modal-header {
  position: relative;
  margin-bottom: 20px;
}

.modal-header h2 {
  color: var(--accent-color);
  font-size: 1.8rem;
  margin-top: 10px;
}

.close-btn {
  position: absolute;
  top: -10px;
  right: -10px;
  color: var(--text-color);
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  background-color: var(--header-color);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.close-btn:hover {
  background-color: var(--hover-color);
  color: var(--accent-color);
}

.modal-body {
  padding: 10px 0;
}

.modal-body p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

#modal-link-container {
  margin-top: 25px;
}

#modal-link-container .news-link {
  padding: 10px 20px;
  background-color: var(--card-background);
  border-radius: 5px;
  font-size: 1.05rem;
}

@media (max-width: 768px) {
  .news-section {
    grid-template-columns: 1fr;
  }
  
  .modal-content {
    width: 95%;
    padding: 20px;
    margin: 10% auto;
  }
  
  .close-btn {
    top: -5px;
    right: -5px;
    width: 35px;
    height: 35px;
  }
}