:root {
  color-scheme: dark;
  --bg: #111e2c;
  --bg-top: #111e2c;
  --surface: #11161d;
  --surface-raised: #161b22;
  --border: #2d333b;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --accent-soft: rgba(88, 166, 255, 0.14);
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  --control-height: 2.2rem;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #e1ebf7;
  --bg-top: #e1ebf7;
  --surface: #ffffff;
  --surface-raised: #f6f8fa;
  --border: #d0d7de;
  --text: #1f2328;
  --muted: #57606a;
  --accent: #0969da;
  --accent-soft: rgba(9, 105, 218, 0.1);
  --shadow: 0 10px 28px rgba(31, 35, 40, 0.08);
  --control-height: 2.2rem;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background-color: var(--bg);
  color: var(--text);
}

body {
  min-height: 100vh;
}

button,
a {
  font: inherit;
}

button {
  -webkit-appearance: none;
  appearance: none;
  border-radius: 0;
  -webkit-tap-highlight-color: transparent;
}

.shell {
  width: min(1060px, calc(100vw - 1.25rem));
  margin: 0 auto;
}

.page-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: max(0.85rem, env(safe-area-inset-top)) 0 0.7rem;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.connection-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--control-height);
  height: var(--control-height);
  color: #d29922;
}

.brand {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 1.45rem;
  height: 1.45rem;
  border-radius: 0.35rem;
  flex: 0 0 auto;
}

.controls-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}

.filter-cluster {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  flex: 1 1 auto;
  min-width: 0;
}

.segmented {
  display: inline-flex;
  gap: 0.3rem;
  flex: 1 1 auto;
  min-width: 0;
  align-self: flex-start;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.search-cluster {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-left: auto;
  flex: 0 1 auto;
  min-width: 0;
}

.filter-button,
.icon-button,
.view-more,
.search-clear {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: 140ms ease;
}

.filter-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--control-height);
  min-height: var(--control-height);
  min-width: 3.1rem;
  padding: 0 0.78rem;
  border-radius: 999px;
  font-size: 0.88rem;
}

.filter-button--icon {
  min-width: var(--control-height);
  width: var(--control-height);
  padding: 0;
}

.filter-button:hover,
.icon-button:hover,
.view-more:hover,
.search-clear:hover,
.item-title a:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent) 36%, var(--border));
}

.filter-button.is-active {
  color: var(--text);
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 44%, var(--border));
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--control-height);
  height: var(--control-height);
  padding: 0;
  border-radius: 999px;
  box-shadow: var(--shadow);
}

.icon-button[disabled] {
  opacity: 0.6;
  cursor: wait;
}

.search-toggle.is-active,
.search-clear {
  color: var(--text);
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 44%, var(--border));
}

.search-form {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex: 0 1 auto;
  max-width: 0;
  min-width: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  transition:
    max-width 180ms ease,
    opacity 180ms ease;
}

.search-form.is-open {
  max-width: min(36rem, calc(100vw - 12rem));
  opacity: 1;
  pointer-events: auto;
}

.search-input {
  height: var(--control-height);
  min-height: var(--control-height);
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
  flex: 1 1 18rem;
  width: 18rem;
  min-width: 0;
  padding: 0 0.86rem;
  font-size: 16px;
}

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

.search-input:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 44%, var(--border));
}

.search-icon-close {
  display: none;
}

.search-toggle.is-active .search-icon-search {
  display: none;
}

.search-toggle.is-active .search-icon-close {
  display: block;
}

.source-icon-image {
  display: inline-block;
  flex: 0 0 auto;
  width: 1.1rem;
  height: 1.1rem;
  object-fit: contain;
  vertical-align: middle;
}

.source-icon-image--filter {
  width: 1rem;
  height: 1rem;
}

.source-icon-image--dialog {
  width: 1.25rem;
  height: 1.25rem;
}

.source-icon-image--host {
  width: 0.95rem;
  height: 0.95rem;
  align-self: center;
}

.source-icon-image--hackernews,
.source-icon-image--alphaxiv {
  border-radius: 5px;
}

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

.theme-icon {
  width: 1rem;
  height: 1rem;
}

.config-dialog {
  width: min(30rem, calc(100vw - 1.5rem));
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 0;
  color: var(--text);
  background: var(--surface-raised);
  box-shadow: var(--shadow);
}

.config-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(2px);
}

.config-dialog-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem;
}

.config-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.config-dialog-header h2 {
  margin: 0;
  font-size: 1rem;
}

.config-dialog-copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.install-dialog-screenshot {
  display: block;
  width: 100%;
  height: auto;
  max-width: 11rem;
  margin: 0 auto;
  border-radius: 0.9rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.install-dialog .config-dialog-form {
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
}

.install-steps {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0;
  padding-left: 1.3rem;
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.45;
}

.install-steps-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: -0.35em;
  color: var(--accent);
}

.install-steps-icon .theme-icon {
  width: 1.05rem;
  height: 1.05rem;
}

.config-section {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.config-section-header {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
}

.config-section-title {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--muted);
}

.config-section-copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.config-options {
  display: grid;
  gap: 0.65rem;
}

.config-options--two-column {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.config-options--choice-grid {
  gap: 0.5rem;
}

.config-option {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-height: var(--control-height);
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 0.95rem;
  background: var(--surface);
}

.config-option input {
  margin: 0;
}

.config-option-body {
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  flex-direction: column;
  gap: 0.16rem;
}

.config-option-title {
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.3;
}

.config-option-copy {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.config-options--two-column .config-option {
  align-items: flex-start;
}

.config-options--two-column .config-option--choice {
  align-items: center;
}

.config-option--choice {
  position: relative;
  align-items: center;
  min-height: var(--control-height);
  padding: 0.75rem 0.85rem;
}

.config-option--choice input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
  accent-color: var(--accent);
}

.config-option-body--choice {
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  text-align: left;
  gap: 0.45rem;
  padding-right: 0;
}

.config-option-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--text);
  background: transparent;
  border-radius: 0;
  flex: 0 0 auto;
}

.choice-icon {
  width: 1rem;
  height: 1rem;
}

.config-option--choice .config-option-title {
  font-size: 0.88rem;
}

.config-option--choice:has(input:checked) {
  border-color: color-mix(in srgb, var(--accent) 44%, var(--border));
  background: color-mix(in srgb, var(--accent-soft) 52%, var(--surface));
}

.config-option--choice:has(input:checked) .config-option-icon {
  color: var(--accent);
}

.is-dialog-open,
body.is-dialog-open {
  overflow: hidden;
  overscroll-behavior: none;
}

.config-dialog-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.config-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.55rem;
}

.config-dialog-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.74rem;
  line-height: 1.35;
  text-align: left;
  flex: 1 1 auto;
}

.dialog-button {
  min-height: var(--control-height);
  padding: 0 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.dialog-button-primary {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 44%, var(--border));
}

.toast {
  position: fixed;
  top: calc(env(safe-area-inset-top) + 0.9rem);
  left: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  transform: translate(-50%, -12px);
  z-index: 50;
  min-width: 13rem;
  max-width: min(32rem, calc(100vw - 1.5rem));
  padding: 0.75rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 92%, var(--accent) 8%);
  box-shadow: var(--shadow);
  color: var(--text);
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast.is-error {
  background: color-mix(in srgb, var(--surface) 88%, #f85149 12%);
  border-color: color-mix(in srgb, #f85149 40%, var(--border));
}

.toast.is-loading {
  background: color-mix(in srgb, var(--surface) 90%, var(--accent) 10%);
  border-color: color-mix(in srgb, var(--accent) 28%, var(--border));
}

.toast.is-offline {
  background: color-mix(in srgb, var(--surface) 88%, #d29922 12%);
  border-color: color-mix(in srgb, #d29922 42%, var(--border));
}

.toast.is-loading::before {
  content: "";
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 999px;
  border: 2px solid color-mix(in srgb, var(--accent) 24%, var(--border));
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}

.is-hidden {
  display: none !important;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

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

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

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

.page-body {
  padding-bottom: calc(0.35rem + env(safe-area-inset-bottom));
}

.error-stack {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.error-banner,
.empty-state {
  padding: 0.8rem 0.9rem;
  border-radius: 0.9rem;
  border: 1px solid color-mix(in srgb, #f85149 30%, var(--border));
  background: color-mix(in srgb, #f85149 7%, var(--surface));
  color: var(--muted);
}

.empty-state {
  border-color: var(--border);
  background: var(--surface);
}

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.55rem;
}

.cards-grid.is-loading {
  opacity: 0.66;
  transition: opacity 140ms ease;
}

.item-card {
  display: flex;
  flex-direction: column;
  gap: 0.46rem;
  padding: 0.72rem 0.78rem;
  border-radius: 0.95rem;
  border: 1px solid var(--border);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--surface-raised) 94%, transparent),
    var(--surface)
  );
  box-shadow: var(--shadow);
  cursor: pointer;
  transition:
    border-color 140ms ease,
    transform 140ms ease,
    box-shadow 140ms ease;
}

.item-card:hover {
  border-color: color-mix(in srgb, var(--accent) 36%, var(--border));
}

.item-card:active {
  transform: scale(0.992);
}

.item-card:focus-within {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 44%, var(--border));
  box-shadow:
    var(--shadow),
    0 0 0 2px var(--accent-soft);
}

.item-card.is-hidden {
  display: none;
}

.item-index,
.item-host {
  margin: 0;
  color: var(--muted);
  line-height: 1.35;
}

.item-index {
  display: inline;
  margin-right: 0.3rem;
  font-size: 0.8rem;
  font-weight: 700;
}

.item-title {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.35;
}

.item-title a {
  color: var(--text);
  text-decoration: none;
  transition: color 140ms ease;
}

.item-title a:visited,
.item-title a.is-visited {
  color: var(--muted);
}

.item-brief {
  margin: 0;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.45;
}

.item-brief-text {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.item-host {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.76rem;
  word-break: break-word;
}

.item-host-text {
  min-width: 0;
}

:root[data-ui-density="compact"] {
  --control-height: 2rem;
}

:root[data-ui-density="compact"] .page-header {
  gap: 0.42rem;
  padding: max(0.75rem, env(safe-area-inset-top)) 0 0.55rem;
}

:root[data-ui-density="compact"] .controls-row,
:root[data-ui-density="compact"] .filter-cluster,
:root[data-ui-density="compact"] .search-cluster {
  gap: 0.35rem;
}

:root[data-ui-density="compact"] .cards-grid {
  gap: 0.42rem;
}

:root[data-ui-density="compact"] .item-card {
  gap: 0.34rem;
  padding: 0.5rem 0.56rem;
  border-radius: 0.82rem;
}

:root[data-ui-density="compact"] .item-index {
  font-size: 0.76rem;
}

:root[data-ui-density="compact"] .item-title {
  font-size: 0.91rem;
  line-height: 1.3;
}

:root[data-ui-density="compact"] .item-brief {
  font-size: 0.82rem;
  line-height: 1.38;
}

:root[data-ui-density="compact"] .item-host {
  font-size: 0.72rem;
}

:root[data-ui-density="compact"] .config-dialog-form {
  gap: 0.82rem;
  padding: 0.82rem;
}

:root[data-ui-density="compact"] .config-dialog-header {
  gap: 0.55rem;
}

:root[data-ui-density="compact"] .config-dialog-header h2 {
  font-size: 0.95rem;
}

:root[data-ui-density="compact"] .config-dialog-copy {
  font-size: 0.84rem;
  line-height: 1.38;
}

:root[data-ui-density="compact"] .config-section {
  gap: 0.5rem;
}

:root[data-ui-density="compact"] .config-section-header {
  gap: 0.2rem;
}

:root[data-ui-density="compact"] .config-options {
  gap: 0.5rem;
}

:root[data-ui-density="compact"] .config-options--two-column {
  gap: 0.45rem;
}

:root[data-ui-density="compact"] .config-option {
  gap: 0.55rem;
  padding: 0.62rem 0.72rem;
  border-radius: 0.82rem;
}

:root[data-ui-density="compact"] .config-option--choice {
  min-height: 42px;
  padding: 0.62rem 0.72rem;
}

:root[data-ui-density="compact"] .config-option-title {
  font-size: 0.86rem;
}

:root[data-ui-density="compact"] .config-option-copy {
  font-size: 0.78rem;
  line-height: 1.32;
}

:root[data-ui-density="compact"] .config-option-icon {
  width: 1.1rem;
  height: 1.1rem;
}

:root[data-ui-density="compact"] .choice-icon {
  width: 0.92rem;
  height: 0.92rem;
}

:root[data-ui-density="compact"] .config-dialog-footer-row {
  gap: 0.55rem;
}

:root[data-ui-density="compact"] .config-dialog-actions {
  gap: 0.45rem;
}

:root[data-ui-density="compact"] .config-dialog-meta {
  font-size: 0.7rem;
}

:root[data-ui-density="compact"] .dialog-button {
  padding: 0 0.82rem;
  font-size: 0.88rem;
}

.footer-actions {
  display: flex;
  justify-content: center;
  padding-top: 0.55rem;
}

.site-footer {
  padding: 0.55rem 0 0;
}

.site-footer p {
  margin: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.4;
  text-align: center;
  width: 100%;
  flex-wrap: wrap;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: inherit;
  text-decoration: none;
}

.footer-sep {
  display: inline-flex;
  align-items: center;
}

.footer-link:hover {
  color: var(--text);
}

.footer-github-mark {
  width: 0.95rem;
  height: 0.95rem;
  display: inline-block;
  align-self: center;
  vertical-align: middle;
  border-radius: 0.2rem;
}

:root[data-theme="dark"] .footer-github-mark,
:root[data-theme="dark"] .source-icon-image--github {
  filter: invert(1) brightness(1.18);
}

.view-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--control-height);
  min-height: var(--control-height);
  padding: 0 1rem;
  border-radius: 999px;
  font-size: 0.9rem;
}

.refresh-button.is-loading .theme-icon {
  animation: spin 0.8s linear infinite;
}

.view-more[hidden] {
  display: none;
}

@media (max-width: 560px) {
  :root {
    --control-height: 2rem;
  }

  .shell {
    width: min(100vw - 0.8rem, 100%);
  }

  .controls-row {
    gap: 0.45rem;
  }

  .filter-cluster {
    min-width: 0;
  }

  .segmented {
    justify-content: flex-start;
    gap: 0.22rem;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .segmented::-webkit-scrollbar {
    display: none;
  }

  .filter-button {
    flex: 0 0 auto;
    min-width: 0;
    padding: 0 0.62rem;
    font-size: 0.8rem;
  }

  .search-cluster {
    flex: 0 0 auto;
  }

  .controls-row.is-search-active .filter-cluster {
    display: none;
  }

  .controls-row.is-search-active .search-cluster {
    flex: 1 1 auto;
    width: 100%;
  }

  .controls-row.is-search-active .search-form.is-open {
    flex: 1 1 auto;
    max-width: none;
  }

  .controls-row.is-search-active .search-input {
    width: 100%;
    flex: 1 1 auto;
  }

  .config-dialog {
    width: min(100vw - 1rem, 100%);
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }
}