@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,700;1,400&family=Montserrat:wght@400;700&display=swap');

:root {
  --primary-color: #242424;
  --secondary-color: #757575;
  --accent-color: #007bff;
  --bg-color: #fff;
  --card-bg: #fafbfc;
  --border-color: #e0e0e0;
  --max-width: 1000px;
  --spacing: 2rem;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.03);
}

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

body {
  font-family: 'Lora', serif;
  color: var(--primary-color);
  background: var(--bg-color);
  line-height: 1.7;
}

header {
  border-bottom: 1px solid var(--border-color);
  padding: 2rem 0 1rem 0;
  margin-bottom: var(--spacing);
  text-align: center;
}

header h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  position: relative; /* Required for absolute positioning of the cursor */
}

header h1::after {
  content: " |"; /* The cursor */
  animation: blink-animation 1s steps(5, start) infinite;
}

@keyframes blink-animation {
  to {
    visibility: hidden;
  }
}

header p {
  color: var(--secondary-color);
  font-family: 'Montserrat', sans-serif;
  margin-top: 0.5rem;
  font-size: 1.1rem;
}

#filter-container {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: var(--spacing);
  flex-wrap: wrap;
}

.filter-btn {
  font-family: 'Montserrat', sans-serif;
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background: transparent;
  color: var(--primary-color);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1rem;
}

.filter-btn.active, .filter-btn:hover {
  background: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

#article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing);
  max-width: var(--max-width);
  margin: 0 auto var(--spacing) auto;
  padding: 0 var(--spacing);
}

.article-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  transition: transform 0.15s;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.article-card:hover {
  transform: translateY(-4px) scale(1.01);
}

.article-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  color: var(--primary-color);
  text-decoration: none;
}

.article-subtitle {
  color: var(--secondary-color);
  font-size: 1.05rem;
  margin-top: auto;
}

.article-meta {
  font-size: 0.95rem;
  color: var(--secondary-color);
}

footer {
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  text-align: center;
  color: var(--secondary-color);
  font-size: 0.9rem;
  margin-top: var(--spacing);
}

@media (max-width: 768px) {
  :root {
    --spacing: 1rem;
    --max-width: 600px;
  }

  #article-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}