:root {
  color-scheme: light dark;
  --bg: #faf8f5;
  --text: #1a1a1a;
  --muted: #5c5c5c;
  --accent: #2d6a4f;
  --card: #ffffff;
  --border: #e5e2dd;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --text: #f0f0f0;
    --muted: #b0b0b0;
    --accent: #52b788;
    --card: #1e1e1e;
    --border: #333333;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
}

header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

header a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

header nav {
  margin-top: 0.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.95rem;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.lang-switcher label {
  font-weight: 500;
}

.lang-switcher select {
  appearance: none;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.35rem 2rem 0.35rem 0.75rem;
  font: inherit;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235c5c5c' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
}

.lang-switcher select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

h1 {
  font-size: 1.75rem;
  margin-top: 0;
}

h2 {
  font-size: 1.15rem;
  margin-top: 2rem;
  color: var(--accent);
}

p,
li {
  color: var(--text);
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-top: 1.5rem;
}

.card a {
  color: var(--accent);
}

footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-size: 0.85rem;
}