/* ===== Design tokens ===== */
:root {
  --color-arches-navy: #2d4a8a;
  --color-arches-navy-dark: #1e3366;
  --color-arches-red: #b83229;
  --color-arches-red-dark: #8f2420;
  --color-text: #1a1a1a;
  --color-text-muted: #555;
  --color-border: #d4d4d4;
  --color-bg: #ffffff;
  --color-bg-subtle: #f5f6f8;
  --color-bg-footer: #eef0f4;
  --color-stable: #166534;
  --color-stable-bg: #dcfce7;
  --color-beta: #7c3aed;
  --color-beta-bg: #ede9fe;
  --color-experimental: #b45309;
  --color-experimental-bg: #fef3c7;
  --color-maintenance: #4b5563;
  --color-maintenance-bg: #f3f4f6;
  --color-planning: #0369a1;
  --color-planning-bg: #e0f2fe;
  --color-alpha: #6d28d9;
  --color-alpha-bg: #ede9fe;
  --color-application: #1e3a6e;
  --color-application-bg: #dce8fb;
  --color-extension: var(--color-arches-red-dark);
  --color-extension-bg: #f7dede;
  --color-tool: #145c3e;
  --color-tool-bg: #d4f0e8;
  --color-package: #9d174d;
  --color-package-bg: #fce7f3;
  --radius-card: 0.375rem;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, monospace;
}

/* ===== Reset and base ===== */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}
a { color: var(--color-arches-red); }
a:hover { color: var(--color-arches-red-dark); }

/* ===== Skip link ===== */
.skip-link {
  position: absolute;
  top: -3rem;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--color-arches-red);
  color: white;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  transition: top 0.2s;
  z-index: 100;
}
.skip-link:focus { top: 0; }

/* ===== Header ===== */
.site-header {
  background: var(--color-bg);
  border-bottom: 3px solid var(--color-arches-red);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}
.site-nav {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0.8rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.site-logo {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-arches-red);
}
.site-logo:hover { color: var(--color-arches-red-dark); }
.site-logo-img {
  height: 1.35rem;
  width: auto;
  margin-bottom: 0.49rem;
  filter: brightness(0) saturate(100%) invert(20%) sepia(90%) saturate(1200%) hue-rotate(335deg) brightness(95%);
  transition: filter 0.15s;
}
.site-logo:hover .site-logo-img {
  filter: brightness(0) saturate(100%) invert(15%) sepia(90%) saturate(1400%) hue-rotate(335deg) brightness(85%);
}
.site-logo-text {
  font-weight: 400;
  font-size: 1.42rem;
  letter-spacing: -0.01em;
}
.nav-links {
  list-style: none;
  margin: 0 0 0 auto;
  padding: 0;
  display: flex;
  gap: 1.5rem;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text-muted);
}
.nav-links a:hover { color: var(--color-arches-red); }

/* ===== Hero ===== */
.hero {
  background: var(--color-arches-red);
  color: white;
  text-align: center;
  padding: 3.5rem 1.5rem 3rem;
}
.hero-brand {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.hero-logo {
  display: block;
  height: clamp(2.25rem, 7vw, 3.5rem);
  width: auto;
  max-width: min(18rem, 80%);
  margin-bottom: 1.35rem;
}
.hero-page-title {
  font-size: clamp(2rem, 7.5vw, 3.96rem);
  font-weight: 300;
  letter-spacing: 0.01em;
  color: rgb(255, 255, 255);
  margin: 0;
}
.hero h1:not(.hero-page-title) {
  margin: 0 0 0.6rem;
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 800;
  color: white;
  letter-spacing: -0.02em;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 1.75rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}
.hero-subtitle a { color: rgba(255, 255, 255, 0.9); text-decoration: underline; }
.hero-subtitle a:hover { color: white; }

/* Long-form header copy: the intro stays visible and the how-to sections collapse
   behind a trigger that sits inline at the end of the intro, so the control costs no
   extra vertical space and the listing stays above the fold. */
.hero-intro {
  max-width: 48rem;
  margin: 0 auto 1.5rem;
  text-align: left;
}
.hero-intro > p {
  font-size: 1rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}
.hero-more-toggle {
  /* inline with the preceding sentence rather than on its own row */
  display: inline;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  color: white;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.15em;
  cursor: pointer;
  white-space: nowrap;
}
.hero-more-toggle::after {
  content: "\00a0\203A";
  display: inline-block;
  text-decoration: none;
  transition: transform 0.15s;
}
.hero-more-toggle[aria-expanded="true"]::after {
  transform: rotate(90deg);
}
.hero-more-toggle:hover { color: white; text-decoration-thickness: 0.125em; }
.hero-more-toggle:focus-visible {
  outline: 2px solid white;
  outline-offset: 0.15rem;
  border-radius: 0.15rem;
}
.hero-details-body {
  margin-top: 1.25rem;
  text-align: left;
}
.hero-details-body h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: white;
  margin: 1.5rem 0 0.4rem;
}
.hero-details-body h2:first-child { margin-top: 0; }
.hero-details-body p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}
@media (prefers-reduced-motion: reduce) {
  .hero-more-toggle::after { transition: none; }
}
.btn-primary {
  display: inline-block;
  padding: 0.65rem 1.6rem;
  background: white;
  color: var(--color-arches-red);
  text-decoration: none;
  border-radius: var(--radius-card);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.15s, color 0.15s;
}
.btn-primary:hover { background: rgba(255, 255, 255, 0.88); color: var(--color-arches-red-dark); }

/* ===== Catalog controls ===== */
.catalog {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.75rem 1.5rem 3rem;
}
.catalog-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.search-input {
  flex: 1 1 auto;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-size: 0.95rem;
  font-family: inherit;
  outline-offset: 2px;
}
.search-input:focus { outline: 2px solid var(--color-arches-red); }
.filters {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.filters select {
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--color-bg);
  cursor: pointer;
}
.version-input {
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-size: 0.9rem;
  font-family: var(--font-mono);
  width: 14rem;
  outline-offset: 2px;
}
.version-input:focus { outline: 2px solid var(--color-arches-red); }
.version-input--active { border-color: var(--color-arches-navy); }
.package-count {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

/* ===== Package grid ===== */
.package-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: 1.25rem;
}

/* ===== Package card ===== */
.package-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.package-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-arches-red);
}
.archesproject-mark {
  display: inline-flex;
  align-items: center;
  margin-left: 0.3rem;
  position: relative;
  cursor: help;
  vertical-align: middle;
}
.archesproject-mark-logo {
  height: 0.8rem;
  width: auto;
  filter: brightness(0) saturate(100%) invert(20%) sepia(90%) saturate(1200%) hue-rotate(335deg) brightness(95%);
}
.archesproject-mark::after {
  content: "Maintained by the Arches Project core team";
  position: absolute;
  top: calc(100% + 0.4rem);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text);
  color: white;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  white-space: nowrap;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-card);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 10;
}
.archesproject-mark:hover::after {
  opacity: 1;
}
.card-header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.card-title-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  min-width: 0;
}
.card-name {
  font-weight: 700;
  font-size: 1rem;
  font-family: var(--font-mono);
  text-decoration: none;
  color: var(--color-arches-red);
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card-name:hover { text-decoration: underline; }
.card-link-group {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
  white-space: nowrap;
}
.card-link-detail {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
}
.card-badges {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.35rem;
  align-items: center;
}
/* owner sits directly under the header name line */
.card-owner {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin: 0;
}
.card-owner a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.card-owner a:hover {
  color: var(--color-arches-red);
  text-decoration: underline;
}
.card-summary {
  font-size: 0.875rem;
  color: var(--color-text);
  margin: 0.1rem 0 0;
  line-height: 1.5;
  flex: 1;
}
/* Meta row: plain dot-separated text, no pill borders */
.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}
.meta-item {
  background: none;
  padding: 0;
  border: none;
  border-radius: 0;
  white-space: nowrap;
}
/* Each sep+item pair wraps together, never breaks mid-group */
.meta-item-group {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}
.meta-sep {
  margin: 0 0.35rem;
  opacity: 0.4;
  user-select: none;
}
/* 'Updated' sits on its own line below the other meta items */
.meta-item--updated {
  flex-basis: 100%;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}
.tag {
  font-size: 0.72rem;
  padding: 0.1rem 0.5rem;
  background: var(--color-bg-subtle);
  border: none;
  border-radius: 999px;
  color: var(--color-text-muted);
}
.card-links {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  font-size: 0.85rem;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border);
}

/* ===== Badges ===== */
.badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}
.kind-application { background: var(--color-application-bg); color: var(--color-application); }
.kind-extension { background: var(--color-extension-bg); color: var(--color-extension); }
.kind-tool { background: var(--color-tool-bg); color: var(--color-tool); }
.kind-package { background: var(--color-package-bg); color: var(--color-package); }
.status-stable { background: var(--color-stable-bg); color: var(--color-stable); }
.status-beta { background: var(--color-beta-bg); color: var(--color-beta); }
.status-alpha { background: var(--color-alpha-bg); color: var(--color-alpha); }
.status-experimental { background: var(--color-experimental-bg); color: var(--color-experimental); }
.status-maintenance { background: var(--color-maintenance-bg); color: var(--color-maintenance); }
.status-planning { background: var(--color-planning-bg); color: var(--color-planning); }

/* ===== No results ===== */
.no-results {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1rem;
  padding: 3rem;
}

/* ===== Pagination ===== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.375rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.page-btn {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.page-btn:hover:not(:disabled) {
  border-color: var(--color-arches-red);
  color: var(--color-arches-red);
}
.page-btn--active {
  background: var(--color-arches-red);
  border-color: var(--color-arches-red);
  color: white;
  font-weight: 600;
}
.page-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-footer);
  border-top: 1px solid var(--color-border);
  padding: 1.75rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.footer-logo {
  display: block;
  height: 1.25rem;
  width: auto;
  margin: 0 auto 0.6rem;
  filter: brightness(0) saturate(100%) invert(20%) sepia(90%) saturate(1200%) hue-rotate(335deg) brightness(95%);
  opacity: 0.7;
}
.site-footer a { color: var(--color-arches-red); }

/* ===== Responsive ===== */
@media (max-width: 40rem) {
  .site-nav { flex-wrap: wrap; }
  .nav-links { flex-wrap: wrap; gap: 0.75rem; margin-left: 0; }
  .catalog-controls { flex-direction: column; }
}