:root {
  --site-bg: #f8fafc;
  --site-surface: #ffffff;
  --site-text: #0f172a;
  --site-muted: #64748b;
  --site-accent: #2563eb;
  --site-accent-hover: #1d4ed8;
  --site-border: #e2e8f0;
  --site-header-h: 3.5rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    sans-serif;
  background: var(--site-bg);
  color: var(--site-text);
  line-height: 1.5;
}

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--site-surface);
  border-bottom: 1px solid var(--site-border);
  box-shadow: 0 1px 2px rgb(15 23 42 / 6%);
}

.site-header__inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: var(--site-header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--site-text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.site-nav__link {
  color: var(--site-muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
}

.site-nav__link:hover {
  color: var(--site-text);
  background: var(--site-bg);
}

.site-nav__link--accent {
  color: #fff;
  background: var(--site-accent);
}

.site-nav__link--accent:hover {
  background: var(--site-accent-hover);
  color: #fff;
}

.site-nav__form {
  margin: 0;
  display: inline;
}

.site-nav__btn {
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  border: 1px solid var(--site-border);
  background: var(--site-surface);
  color: var(--site-muted);
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
}

.site-nav__btn:hover {
  border-color: #cbd5e1;
  color: var(--site-text);
}

.site-nav__hint {
  font-size: 0.8rem;
  color: #94a3b8;
  padding: 0.35rem 0.5rem;
}

.site-user-menu {
  position: relative;
}

.site-user-menu__trigger {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--site-border);
  background: var(--site-surface);
}

.site-user-menu__trigger::-webkit-details-marker {
  display: none;
}

.site-user-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--site-accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.site-user-avatar--lg {
  width: 2.5rem;
  height: 2.5rem;
  font-size: 0.85rem;
}

.site-user-avatar--img {
  object-fit: cover;
  padding: 0;
}

.site-user-menu__name {
  font-size: 0.9rem;
  color: var(--site-text);
  max-width: 8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-user-menu__panel {
  position: absolute;
  right: 0;
  top: calc(100% + 0.35rem);
  min-width: 14rem;
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgb(15 23 42 / 12%);
  padding: 0.35rem 0;
  z-index: 200;
}

.site-user-menu__header {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--site-border);
}

.site-user-menu__header small {
  display: block;
  color: var(--site-muted);
  font-size: 0.8rem;
}

.site-user-menu__item {
  display: block;
  padding: 0.5rem 0.85rem;
  color: var(--site-text);
  text-decoration: none;
  font-size: 0.9rem;
}

.site-user-menu__item:hover {
  background: var(--site-bg);
}

.site-user-menu__logout {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  font: inherit;
  cursor: pointer;
  color: #b91c1c;
}

.site-main {
  flex: 1;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.site-footer {
  border-top: 1px solid var(--site-border);
  background: var(--site-surface);
  padding: 1rem 1.25rem;
}

.site-footer__inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--site-muted);
}

.site-flashes {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem 0;
}

.flash {
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.flash--error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.flash--info {
  background: #eff6ff;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

.flash--success {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.hero {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
}

.hero p {
  margin: 0;
  color: var(--site-muted);
}

.feature-hint {
  background: var(--site-surface);
  border: 1px dashed var(--site-border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  color: var(--site-muted);
}

.feature-hint code {
  background: var(--site-bg);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.85em;
}

/* —— Home: Irwin feature packs (catalog synced by irwin-cli) —— */
.features-section {
  margin-bottom: 1.5rem;
}

.features-section__head {
  margin-bottom: 1rem;
}

.features-section__title {
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
}

.features-section__lead,
.features-section__summary {
  margin: 0;
  color: var(--site-muted);
  font-size: 0.95rem;
}

.features-section__summary {
  margin-top: 0.35rem;
  font-weight: 500;
  color: var(--site-fg);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: 0.85rem;
}

.feature-card {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.feature-card--installed {
  border-color: #bbf7d0;
  background: linear-gradient(180deg, #f0fdf4 0%, var(--site-surface) 100%);
}

.feature-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.feature-card__title {
  margin: 0;
  font-size: 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.home-icon {
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
}

.home-icon--badge {
  width: 0.85rem;
  height: 0.85rem;
}

.home-icon--inline {
  width: 0.95rem;
  height: 0.95rem;
  margin-top: 0.1rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.feature-card__badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: var(--site-bg);
  color: var(--site-muted);
  border: 1px solid var(--site-border);
}

.feature-card__badge--ok {
  background: #dcfce7;
  color: #166534;
  border-color: #bbf7d0;
}

.feature-card__desc {
  margin: 0;
  font-size: 0.88rem;
  color: var(--site-muted);
  line-height: 1.45;
}

.feature-card__requires,
.feature-card__meta,
.feature-card__warn {
  margin: 0;
  font-size: 0.8rem;
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
}

.feature-card__requires > span,
.feature-card__warn > span {
  flex: 1;
  min-width: 0;
}

.feature-card__requires-label {
  color: var(--site-muted);
}

.feature-card__requires code {
  font-size: 0.78em;
}

.feature-card__warn {
  color: #b45309;
}

.feature-card__install {
  margin-top: auto;
  padding-top: 0.25rem;
}

.feature-card__cmd-row {
  display: flex;
  align-items: stretch;
  gap: 0.4rem;
}

.feature-card__cmd {
  flex: 1;
  min-width: 0;
  display: block;
  box-sizing: border-box;
  padding: 0.45rem 0.55rem;
  background: var(--site-bg);
  border: 1px dashed var(--site-border);
  border-radius: 6px;
  font-size: 0.82rem;
  line-height: 1.35;
  overflow-x: auto;
}

.feature-card__copy {
  flex-shrink: 0;
  align-self: stretch;
  width: 2.5rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--site-border);
  border-radius: 6px;
  background: var(--site-surface);
  color: var(--site-muted);
  cursor: pointer;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.feature-card__copy-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.feature-card__copy-icon--done {
  display: none;
}

.feature-card__copy--done {
  color: #166534;
}

.feature-card__copy--done .feature-card__copy-icon--copy {
  display: none;
}

.feature-card__copy--done .feature-card__copy-icon--done {
  display: inline-flex;
}

.feature-card__copy:hover {
  background: var(--site-bg);
  border-color: var(--site-muted);
}

.feature-card__copy:focus-visible {
  outline: 2px solid var(--site-accent, #2563eb);
  outline-offset: 2px;
}

.feature-card__copy--done {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: #166534;
}

.feature-card__copy--error {
  border-color: #fecaca;
  background: #fef2f2;
  color: #b91c1c;
}

@media (max-width: 640px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}