:root {
  --primary: #0056b3;
  --secondary: #5cb85c;
  --bg: #f4f6fa;
  --card-bg: #fff;
  --text: #333;
}

body {
  font-family: "Inter", system-ui, sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

header {
  text-align: center;
  padding: 2rem 1rem 1rem;
  background: linear-gradient(135deg, var(--primary), #007bff);
  color: white;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

header h1 {
  margin-bottom: 1rem;
}

#filterInput {
  padding: 0.8rem 1rem;
  width: 90%;
  max-width: 400px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
  transition: all 0.2s;
}

#filterInput:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--secondary);
}

main {
  padding: 2rem 1rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
}

.card h2 {
  color: var(--primary);
  margin-top: 0;
}

.card ul {
  list-style: none;
  padding-left: 0;
  margin: 0.5rem 0 0 0;
}

.card ul > li {
  padding: 0.4rem 0;
  font-weight: 500;
}

.card ul ul {
  margin-left: 1rem;
  margin-top: 0.3rem;
}

.card ul ul li {
  font-weight: normal;
  font-size: 0.95rem;
  color: #555;
}

a {
  color: var(--secondary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.no-info {
  margin-top: 3rem;
  background: #ffffff;
  padding: 1rem 1.5rem;
  border-radius: 12px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.no-info h2 {
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.no-info ul {
  list-style: none;
  padding-left: 0;
  columns: 2;
  gap: 1rem;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  color: #666;
  margin-top: 2rem;
}