:root {
  --color-canvas: #f8f9fb;
  --color-surface: #ffffff;
  --color-ink: #17191d;
  --color-muted: #626875;
  --color-line: #cbd0da;
  --color-primary: #214bc8;
  --color-signal: #c3322b;
  --color-focus: #214bc8;
  --color-search-panel: #edf1fb;
  --color-primary-hover: #183a9e;
  --color-primary-soft: #e5eafd;
  --color-signal-soft: #f9e8e6;
  --color-shadow: #dfe3ec;
  --shadow-card: 2px 2px 0 #dfe3ec;
  --radius-card: 6px;
  --content-width: 1180px;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --transition-quick: 140ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  min-width: 320px;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-sans);
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-size: 16px;
  line-height: 1.55;
}

button,
input,
select {
  color: inherit;
  font: inherit;
}

button,
select {
  cursor: pointer;
}

a {
  color: inherit;
}

img,
svg {
  display: block;
}

[hidden] {
  display: none !important;
}

.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: 24px;
}

.site-header {
  min-height: 58px;
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-ink);
}

.site-nav {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-link {
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
}

.source-link {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 4px;
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color var(--transition-quick), border-color var(--transition-quick);
}

.source-link:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.catalog {
  min-height: calc(100vh - 116px);
}

.search-panel {
  position: relative;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 44px max(24px, calc((100% - var(--content-width) + 48px) / 2)) 38px;
  background: var(--color-search-panel);
  border-bottom: 1px solid #b9c4e1;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--color-signal);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.3;
  text-transform: uppercase;
}

.search-panel h1 {
  max-width: 760px;
  margin: 0 0 26px;
  color: var(--color-ink);
  font-size: 38px;
  font-weight: 800;
  line-height: 1.12;
  overflow-wrap: anywhere;
}

.search-field {
  width: 100%;
}

.search-field label,
.filter-field label {
  display: block;
  margin-bottom: 6px;
  color: var(--color-ink);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.25;
}

.search-input-wrap {
  position: relative;
  width: 100%;
  background: var(--color-surface);
  border-radius: 4px;
  box-shadow: 3px 3px 0 var(--color-primary);
  transition: box-shadow var(--transition-quick);
}

.search-input-wrap svg {
  position: absolute;
  top: 50%;
  left: 16px;
  color: var(--color-primary);
  pointer-events: none;
  transform: translateY(-50%);
}

.search-input-wrap:focus-within {
  box-shadow: 4px 4px 0 var(--color-primary);
}

.search-input {
  width: 100%;
  height: 52px;
  padding: 0 16px 0 48px;
  background: transparent;
  border: 2px solid var(--color-ink);
  border-radius: 4px;
  color: var(--color-ink);
  font-size: 16px;
  outline: none;
}

.search-input::placeholder {
  color: var(--color-muted);
  opacity: 1;
}

.catalog-content {
  padding-top: 28px;
  padding-bottom: 56px;
}

.toolbar {
  display: flex;
  align-items: end;
  gap: 12px;
  min-width: 0;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-line);
}

.filter-field {
  width: 176px;
  flex: 0 0 176px;
}

.filter-select {
  width: 100%;
  height: 40px;
  padding: 0 34px 0 11px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 4px;
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 600;
}

.filter-select:hover {
  border-color: var(--color-primary);
}

.quick-filters {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.quick-filter {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 4px;
  color: var(--color-ink);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.15;
  transition: background-color var(--transition-quick), border-color var(--transition-quick), color var(--transition-quick);
}

.quick-filter:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.quick-filter[aria-pressed="true"] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-surface);
}

.quick-filter-name {
  overflow-wrap: anywhere;
}

.quick-filter-count {
  min-width: 22px;
  padding: 2px 4px;
  background: var(--color-canvas);
  border: 1px solid currentColor;
  border-radius: 3px;
  color: var(--color-muted);
  font-size: 11px;
  line-height: 1.1;
  text-align: center;
}

.quick-filter[aria-pressed="true"] .quick-filter-count {
  background: var(--color-surface);
  color: var(--color-primary);
}

.result-summary {
  min-height: 22px;
  margin: 18px 0 14px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 600;
}

.repository-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
  gap: 18px;
}

.repository-card {
  display: flex;
  min-width: 0;
  min-height: 272px;
  flex-direction: column;
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-quick), box-shadow var(--transition-quick), transform var(--transition-quick);
}

.repository-card:hover {
  border-color: var(--color-primary);
  box-shadow: 3px 3px 0 var(--color-shadow);
  transform: translateY(-2px);
}

.repository-card-header {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.repository-identity {
  min-width: 0;
  flex: 1 1 auto;
}

.repository-owner {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 9px;
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.repository-owner:hover {
  color: var(--color-primary);
}

.repository-owner-avatar,
.repository-owner-fallback {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border: 1px solid var(--color-line);
  border-radius: 4px;
}

.repository-owner-avatar {
  object-fit: cover;
}

.repository-owner-fallback {
  display: grid;
  place-items: center;
  background: var(--color-signal);
  border-color: var(--color-signal);
  color: var(--color-surface);
  font-size: 16px;
  font-weight: 800;
}

.repository-owner-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.repository-title {
  min-width: 0;
  margin: 10px 0 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.3;
}

.repository-name {
  color: var(--color-ink);
  overflow-wrap: anywhere;
  text-decoration-color: transparent;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: color var(--transition-quick), text-decoration-color var(--transition-quick);
}

.repository-name:hover {
  color: var(--color-primary);
  text-decoration-color: currentColor;
}

.repository-homepage {
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  place-items: center;
  background: var(--color-canvas);
  border: 1px solid var(--color-line);
  border-radius: 4px;
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color var(--transition-quick), border-color var(--transition-quick), color var(--transition-quick);
}

.repository-homepage:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-surface);
}

.repository-description {
  display: -webkit-box;
  min-height: 69px;
  margin: 18px 0 14px;
  overflow: hidden;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.6;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.repository-topics {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.repository-topic {
  max-width: 100%;
  padding: 4px 7px;
  overflow: hidden;
  background: var(--color-primary-soft);
  border: 1px solid #c8d2f5;
  border-radius: 4px;
  color: var(--color-primary);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.repository-topic:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-surface);
}

.repository-metadata {
  display: flex;
  min-width: 0;
  min-height: 32px;
  align-items: center;
  gap: 8px 12px;
  margin-top: auto;
  padding-top: 13px;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 650;
  line-height: 1.3;
}

.repository-language,
.repository-stars,
.repository-updated {
  min-width: 0;
}

.repository-language {
  color: var(--color-ink);
  font-weight: 800;
}

.repository-stars {
  white-space: nowrap;
}

.repository-updated {
  margin-left: auto;
  overflow: hidden;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.load-more {
  display: flex;
  min-height: 50px;
  justify-content: center;
  margin-top: 28px;
}

.load-more button,
.status-error button,
.status-empty button {
  min-width: 128px;
  height: 42px;
  padding: 0 18px;
  background: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: 4px;
  color: var(--color-surface);
  font-size: 14px;
  font-weight: 800;
  transition: background-color var(--transition-quick), border-color var(--transition-quick), transform var(--transition-quick);
}

.load-more button:hover,
.status-error button:hover,
.status-empty button:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.load-more button:disabled,
.status-error button:disabled,
.status-empty button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

.status-panel {
  width: 100%;
  color: var(--color-muted);
  text-align: center;
}

.status-loading {
  min-height: 0;
  padding: 0;
  text-align: left;
}

.status-loading-text {
  margin: 18px 0 14px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.loading-skeleton-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
  gap: 18px;
}

.repository-card-skeleton {
  min-height: 272px;
  pointer-events: none;
}

.repository-card-skeleton:hover {
  border-color: var(--color-line);
  box-shadow: var(--shadow-card);
  transform: none;
}

.repository-skeleton-header {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 9px;
}

.repository-skeleton-heading {
  display: grid;
  min-width: 0;
  flex: 1 1 auto;
  gap: 9px;
}

.repository-skeleton-description {
  display: grid;
  gap: 9px;
  margin: 27px 0 14px;
}

.repository-skeleton-meta {
  display: flex;
  min-height: 32px;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 13px;
  border-top: 1px solid var(--color-line);
}

.repository-skeleton-avatar,
.repository-skeleton-owner,
.repository-skeleton-title,
.repository-skeleton-line,
.repository-skeleton-meta-item {
  display: block;
  background: var(--color-line);
  border-radius: 3px;
  animation: skeleton-pulse 900ms ease-in-out infinite alternate;
}

.repository-skeleton-avatar {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
}

.repository-skeleton-owner {
  width: 88px;
  height: 9px;
}

.repository-skeleton-title {
  width: min(260px, 75%);
  height: 16px;
}

.repository-skeleton-line {
  width: 100%;
  height: 11px;
}

.repository-skeleton-line:nth-child(2) {
  width: 92%;
}

.repository-skeleton-line:nth-child(3) {
  width: 68%;
}

.repository-skeleton-meta-item {
  width: 72px;
  height: 9px;
}

.repository-skeleton-meta-item:last-child {
  width: 104px;
  margin-left: auto;
}

.status-error,
.status-empty {
  display: grid;
  min-height: 180px;
  place-items: center;
  align-content: center;
  gap: 16px;
  padding: 32px 20px;
}

.status-error p {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.status-empty p {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.status-error {
  color: var(--color-signal);
}

.status-empty {
  color: var(--color-muted);
}

@keyframes skeleton-pulse {
  from {
    opacity: 0.45;
  }
  to {
    opacity: 1;
  }
}

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

.footer-links {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.footer-links a {
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.search-input:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

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

@media (min-width: 761px) {
  .toolbar {
    position: sticky;
    top: 0;
    z-index: 10;
    padding-top: 12px;
    background: var(--color-canvas);
  }
}

@media (max-width: 760px) {
  .container {
    padding-inline: 18px;
  }

  .search-panel {
    padding: 34px 18px 30px;
  }

  .search-panel h1 {
    margin-bottom: 22px;
    font-size: 32px;
  }

  .catalog-content {
    padding-top: 22px;
    padding-bottom: 40px;
  }

  .toolbar {
    position: static;
    top: auto;
    z-index: auto;
    align-items: stretch;
    flex-direction: column;
  }

  .filter-field {
    width: 100%;
    flex-basis: auto;
  }

  .quick-filters {
    width: 100%;
    padding-top: 4px;
  }

  .repository-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .loading-skeleton-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .repository-card {
    min-height: 258px;
    padding: 18px;
  }

  .repository-metadata {
    flex-wrap: wrap;
  }

  .repository-updated {
    width: 100%;
    margin-left: 0;
    text-align: left;
  }
}

@media (max-width: 420px) {
  .site-nav {
    gap: 10px;
  }

  .brand-link {
    max-width: calc(100% - 50px);
    overflow-wrap: anywhere;
  }

  .search-panel h1 {
    font-size: 28px;
  }

  .search-input {
    font-size: 14px;
  }

  .quick-filter {
    flex: 1 1 calc(50% - 6px);
    justify-content: space-between;
  }

  .repository-card-header {
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .repository-card-skeleton * {
    animation: none !important;
  }
}