:root {
  color-scheme: light;
  --accent: #1d4ed8;
  --text: #334155;
  --surface: #ffffff;
  --subtle: #f5f5f5;
  --border: #d4d4d4;
}

* {
  box-sizing: border-box;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  overflow-wrap: break-word;
}

.container {
  width: min(68.75rem, calc(100% - 2rem));
  margin-inline: auto;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 0.15em;
}

:focus {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link:focus {
  z-index: 1;
  top: 1rem;
  left: 1rem;
  width: auto;
  height: auto;
  padding: 0.75rem 1rem;
  background: var(--surface);
  clip-path: none;
}

.site-header {
  border-bottom: 1px solid var(--border);
}

.header-inner,
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding-block: 1.5rem;
}

.brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: inline-block;
  padding-block: 0.35rem;
}

main {
  flex: 1;
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--accent);
  line-height: 1.25;
}

h1 {
  margin-bottom: 1.25rem;
  font-size: clamp(2.25rem, 6vw, 3.5rem);
}

h2 {
  margin-bottom: 1rem;
  font-size: 1.6rem;
}

h3 {
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

.intro {
  max-width: 65ch;
  font-size: 1.2rem;
}

.section {
  margin-top: 3.5rem;
}

.reading-width {
  max-width: 72ch;
}

.practice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  gap: 1.5rem;
}

.card {
  min-width: 0;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  background: var(--subtle);
}

.card p {
  margin-bottom: 0;
}

.detail-list {
  margin-block: 0;
  padding-left: 1.5rem;
}

.detail-list li + li {
  margin-top: 0.85rem;
}

.contact-cta {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.button {
  display: inline-block;
  max-width: 100%;
  padding: 0.75rem 1.25rem;
  border: 2px solid var(--accent);
  border-radius: 0.25rem;
  background: var(--surface);
  font-weight: 600;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--subtle);
}

.footer-inner p {
  margin: 0;
}