:root {
  --text: #2c2c2c;
  --text-light: #666;
  --bg: #fafaf8;
  --accent: #7c9885;
  --accent-light: #e8f0ea;
  --border: #e5e5e5;
  --radius: 8px;
}

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

html {
  font-size: 18px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  padding: 2rem 1rem;
  max-width: 680px;
  margin: 0 auto;
}

h1 {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

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

a:hover {
  text-decoration: underline;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.4rem;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

blockquote {
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: var(--radius);
}

blockquote p:last-child {
  margin-bottom: 0;
}

.highlight {
  background: var(--accent-light);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 500;
  text-decoration: none;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.9;
  text-decoration: none;
}

.nav {
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

.nav a {
  color: var(--text-light);
}

.footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-light);
}

/* Test page specific */
.question {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.question-title {
  font-weight: 600;
  margin-bottom: 1rem;
}

.options label {
  display: block;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s;
}

.options label:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}

.options input[type="radio"] {
  margin-right: 0.75rem;
}

.options input[type="radio"]:checked + span {
  font-weight: 500;
}

textarea {
  width: 100%;
  min-height: 120px;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  resize: vertical;
}

textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.result-box {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 2rem;
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 0.9rem;
}

@media (max-width: 480px) {
  html {
    font-size: 16px;
  }

  body {
    padding: 1.5rem 1rem;
  }

  h1 {
    font-size: 1.5rem;
  }
}