:root {
  --color-bg: #fbfaf8;
  --color-surface: #ffffff;
  --color-text: #2a2822;
  --color-text-muted: #6b6a63;
  --color-accent: #6c757d;
  --color-accent-dark: #5a6269;
  --color-border: #e8e6e0;
  --max-width: 760px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: #ffffff;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  background: var(--color-surface);
  color: var(--color-text);
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--color-border);
}

.site-header h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.effective-date {
  margin: 0;
  font-size: 0.95rem;
  opacity: 0.85;
}

/* Table of contents */
.toc {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}

.toc-label {
  margin: 0 0 10px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.toc a {
  color: var(--color-accent-dark);
  text-decoration: none;
  font-size: 0.9rem;
  border-bottom: 1px solid transparent;
}

.toc a:hover {
  border-bottom-color: var(--color-accent-dark);
}

/* Content */
.content {
  background: var(--color-surface);
  padding: 40px 24px 64px;
}

.content h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 2.4em 0 0.6em;
  padding-top: 0.4em;
  border-top: 1px solid var(--color-border);
  scroll-margin-top: 24px;
}

.content section:first-of-type h2 {
  margin-top: 1.4em;
}

.content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.6em 0 0.5em;
  color: var(--color-text);
}

.content p {
  margin: 0 0 1em;
  color: var(--color-text);
}

.content ul {
  margin: 0 0 1.2em;
  padding-left: 1.3em;
}

.content li {
  margin-bottom: 0.5em;
}

.content a {
  color: #0066cc;
  text-decoration: underline;
  text-decoration-color: rgba(0, 102, 204, 0.35);
  text-underline-offset: 2px;
}

.content a:hover {
  text-decoration-color: #0066cc;
}

.provider-list li {
  margin-bottom: 0.9em;
}

/* Footer */
.site-footer {
  padding: 28px 0 40px;
  text-align: center;
}

.site-footer p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 600px) {
  .site-header {
    padding: 40px 0 28px;
  }

  .site-header h1 {
    font-size: 1.6rem;
  }

  .content {
    padding: 28px 16px 48px;
  }

  .toc ul {
    gap: 6px 14px;
  }
}