:root {
  --primary: #2c3e50;
  --accent: #d35400;
  --bg: #f8f9fa;
  --card: #ffffff;
  --text: #333;
}
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
header {
  background: var(--primary);
  color: white;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}
header div {
  font-size: 1.1rem;
}
nav a {
  color: white;
  text-decoration: none;
  margin-left: 1.5rem;
  font-weight: 500;
  transition: color 0.2s;
}
nav a:hover { color: #f1c40f; }
main {
  max-width: 1000px;
  margin: 2rem auto;
  padding: 0 1rem;
}
.card {
  background: var(--card);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  margin-bottom: 1.5rem;
}
h1, h2, h3 { color: var(--primary); }
h1 { font-size: 1.8rem; }
h2 { font-size: 1.4rem; margin-top: 2rem; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 0.7rem 1.2rem;
  border-radius: 4px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}
.btn:hover { background: #b34500; }
.spoiler {
  margin: 1rem 0;
  cursor: pointer;
  font-weight: bold;
  color: var(--accent);
  background: none;
  border: none;
  font-size: 1rem;
}
.spoiler-content {
  display: none;
  padding-top: 0.5rem;
  color: #555;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
ul { line-height: 1.8; }
footer {
  text-align: center;
  padding: 2rem;
  color: #777;
  font-size: 0.9rem;
}
@media (max-width: 600px) {
  header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  nav a { margin-left: 0; display: block; margin-top: 0.5rem; }
  main { padding: 0 0.5rem; }
}