.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, background-color 0.15s;
}

.btn:hover {
  background: var(--bg-subtle);
  border-color: var(--text);
}

.btn-primary {
  color: var(--on-accent);
  background: var(--accent);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent);
  opacity: 0.85;
}

.btn-lg {
  padding: 12px 24px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  font-size: 0.95rem;
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, background-color 0.15s;
}

.icon-btn:hover {
  background: var(--bg-subtle);
  border-color: var(--text);
}

.theme-icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-icon-sun {
  display: inline;
}

:root[data-theme="dark"] .theme-icon-moon {
  display: none;
}

.lang-toggle {
  display: inline-flex;
  padding: 3px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.lang-toggle button {
  padding: 4px 10px;
  font: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--muted);
  cursor: pointer;
  background: transparent;
  border: 0;
  border-radius: 5px;
}

.lang-toggle button:hover {
  color: var(--text);
}

.lang-toggle button[aria-pressed="true"] {
  color: var(--on-accent);
  background: var(--accent);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  padding: 3px 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.lead {
  font-size: 1.15rem;
  color: var(--text);
}

.hero {
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}

.hero .button-row {
  justify-content: center;
  margin-bottom: 0;
}

.panel {
  padding: 24px 28px;
  margin-bottom: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.panel h2 {
  margin-top: 0;
  margin-bottom: 12px;
}

.panel p:last-of-type {
  margin-bottom: 20px;
}

.panel .button-row {
  margin-bottom: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 0 0 40px;
  padding: 0;
  list-style: none;
}

.feature {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.15s;
}

.feature:hover {
  border-color: var(--text);
}

.feature h3 {
  margin-bottom: 6px;
}

.feature p {
  margin: 0;
  font-size: 0.92rem;
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 14px;
  color: var(--on-accent);
  background: var(--accent);
  border-radius: var(--radius-sm);
}

.admonition {
  padding: 16px 20px;
  margin-bottom: 28px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-left: 3px solid var(--text);
  border-radius: var(--radius-sm);
}

.admonition.tip {
  border-left-style: double;
  border-left-width: 5px;
}

.admonition.warning {
  border-left-color: var(--muted);
  border-style: dashed;
  border-left-style: solid;
}

.admonition p {
  margin-bottom: 0;
}

.admonition-title {
  margin-bottom: 6px !important;
  font-weight: 700;
  color: var(--text);
}

.banner {
  margin: 0 0 32px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.banner a {
  display: block;
}

.banner img {
  display: block;
  width: 100%;
  height: auto;
}

.banner .banner-dark,
:root[data-theme="dark"] .banner .banner-light {
  display: none;
}

:root[data-theme="dark"] .banner .banner-dark {
  display: block;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
  padding: 18px 20px;
  color: var(--text-soft);
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.15s, background-color 0.15s;
}

.link-card:hover {
  background: var(--bg-subtle);
  border-color: var(--text);
}

.link-icon {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 48px;
  height: 48px;
  font-size: 1.3rem;
  color: var(--on-accent);
  background: var(--accent);
  border-radius: var(--radius-sm);
}

.link-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.link-text strong {
  font-weight: 700;
}

.link-text span {
  font-size: 0.88rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.link-text .link-url {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}

.code-block {
  position: relative;
  margin-bottom: 28px;
}

.code-block pre {
  margin: 0;
  padding: 16px 64px 16px 18px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.code-block code {
  padding: 0;
  font-size: inherit;
  background: none;
  border: 0;
}

.copy-btn {
  position: absolute;
  top: 50%;
  right: 12px;
  width: 34px;
  height: 34px;
  transform: translateY(-50%);
}

.copy-btn.copied {
  color: var(--on-accent);
  background: var(--accent);
}

.toolbar .icon-btn,
.toolbar .lang-toggle {
  background: var(--glass-fill);
  border-color: var(--glass-border);
}

.toolbar .icon-btn:hover {
  background: var(--glass-fill-hover);
}