/* --- Reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.no-animate,
.no-animate * {
  transition: none !important;
  transition-property: none !important;
  transition-duration: 0s !important;
}

.is-hidden {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

/* --- Theme Variables --- */
:root,
[data-theme="light"] {
  --bg: #fbfbfa;
  --surface: #ffffff;
  --text-primary: #2f3437;
  --text-secondary: #787774;
  --text-tertiary: #b0b0a8;
  --border: #eaeaea;
  --border-light: #f0f0ee;
  --accent: #111111;
  --accent-hover: #333333;
  --accent-text: #ffffff;
  --tag-bg: #edf3ec;
  --tag-text: #346538;
  --tag-stale-bg: #fbf3db;
  --tag-stale-text: #956400;
  --tag-proxy-bg: #e1f3fe;
  --tag-proxy-text: #1f6c9f;
  --tag-duplicate-bg: #f3eef8;
  --tag-duplicate-text: #7c5295;
  --shadow-color: rgba(0, 0, 0, 0.04);
  --shadow-hover: rgba(0, 0, 0, 0.08);
  --scrollbar: #d0d0c8;
  --overlay: rgba(0, 0, 0, 0.02);
  --focus-ring: rgba(17, 17, 17, 0.15);
  --selection: rgba(17, 17, 17, 0.08);
  --toggle-thumb: #ffffff;
}

[data-theme="dark"] {
  --bg: #1a1a1a;
  --surface: #242424;
  --text-primary: #e8e8e8;
  --text-secondary: #a0a09a;
  --text-tertiary: #707070;
  --border: #333333;
  --border-light: #2a2a2a;
  --accent: #ffffff;
  --accent-hover: #cccccc;
  --accent-text: #1a1a1a;
  --tag-bg: #1e2e1e;
  --tag-text: #7bc87b;
  --tag-stale-bg: #2e2a1e;
  --tag-stale-text: #c8a040;
  --tag-proxy-bg: #1e2830;
  --tag-proxy-text: #60a8d0;
  --tag-duplicate-bg: #2a2030;
  --tag-duplicate-text: #a87cc8;
  --shadow-color: rgba(0, 0, 0, 0.2);
  --toggle-thumb: #1a1a1a;

  --shadow-hover: rgba(0, 0, 0, 0.35);
  --scrollbar: #444444;
  --overlay: rgba(255, 255, 255, 0.02);
  --focus-ring: rgba(255, 255, 255, 0.15);
  --selection: rgba(255, 255, 255, 0.08);
}

[data-theme="sepia"] {
  --bg: #ebe0c6;
  --surface: #f4ecd8;
  --text-primary: #4a3728;
  --text-secondary: #7a6b58;
  --text-tertiary: #a89880;
  --border: #d4c5a9;
  --border-light: #e0d4bc;
  --accent: #4a3728;
  --accent-hover: #6b5540;
  --accent-text: #f4ecd8;
  --tag-bg: #dcd0b8;
  --tag-text: #5c4a32;
  --tag-stale-bg: #d8ccb0;
  --tag-stale-text: #8a7040;
  --tag-proxy-bg: #d0c8b8;
  --tag-proxy-text: #5c5a48;
  --tag-duplicate-bg: #d8d0c8;
  --tag-duplicate-text: #6a5878;
  --shadow-color: rgba(74, 55, 40, 0.06);
  --shadow-hover: rgba(74, 55, 40, 0.12);
  --scrollbar: #c0b498;
  --overlay: rgba(74, 55, 40, 0.03);
  --focus-ring: rgba(74, 55, 40, 0.15);
  --selection: rgba(74, 55, 40, 0.08);
}

/* --- Base --- */
html {
  font-size: 15px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family:
    "SF Pro Display",
    "Geist Sans",
    "Helvetica Neue",
    "Switzer",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  color: var(--text-primary);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition:
    background 300ms ease,
    color 300ms ease;
  min-height: 100vh;
}

::selection {
  background: var(--selection);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* --- App Container --- */
.app {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Header --- */
.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.app-title {
  font-family: "Geist Sans", "SF Pro Display", "Helvetica Neue", sans-serif;
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--accent);
  line-height: 1.2;
}

.app-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.github-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  color: var(--accent);
  opacity: 0.6;
  transition:
    opacity 150ms ease,
    background 150ms ease;
}

.github-link:hover {
  opacity: 1;
  background: var(--surface);
}

.github-link:active {
  opacity: 1;
  transform: scale(0.96);
}

.app-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* --- Header Controls --- */
.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* --- Theme Switcher --- */
.theme-switcher {
  display: flex;
  gap: 4px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 9px;
  flex-shrink: 0;
}

.theme-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition-property: color, background;
  transition-duration: 200ms;
  transition-timing-function: ease;
}

.theme-btn:hover {
  background: var(--selection);
}

[data-theme="light"] .theme-btn:hover {
  background: rgba(17, 17, 17, 0.12);
}

[data-theme="dark"] .theme-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

[data-theme="sepia"] .theme-btn:hover {
  background: rgba(74, 55, 40, 0.2);
}

.theme-btn:active {
  transform: scale(0.96);
}

.theme-btn.active {
  color: var(--accent);
  background: var(--surface);
  box-shadow: 0 1px 3px var(--shadow-color);
}

/* --- Sound Toggle --- */
.sound-toggle {
  position: relative;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: color 150ms ease, background 150ms ease;
}
.sound-toggle:hover {
  color: var(--text-primary);
  background: var(--overlay);
}
.sound-toggle.muted {
  color: var(--text-tertiary);
}
.sound-toggle svg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 200ms cubic-bezier(0.2, 0, 0, 1),
              transform 200ms cubic-bezier(0.2, 0, 0, 1),
              filter 200ms cubic-bezier(0.2, 0, 0, 1);
}
.sound-toggle .sound-on {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  filter: blur(0px);
}
.sound-toggle .sound-off {
  transform: translate(-50%, -50%) scale(0.25);
  opacity: 0;
  filter: blur(4px);
}
.sound-toggle.muted .sound-on {
  transform: translate(-50%, -50%) scale(0.25);
  opacity: 0;
  filter: blur(4px);
}
.sound-toggle.muted .sound-off {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  filter: blur(0px);
}

/* --- Toolbar --- */
.toolbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg);
  margin-bottom: 32px;
}

.toolbar-row {
  display: flex;
  gap: 12px;
  align-items: center;
  /* flex-wrap: wrap; */
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
}

.toolbar-row:last-of-type {
  border-bottom: none;
  padding-bottom: 16px;
}

.toolbar-row-narrow {
  display: flex;
  gap: 12px;
  flex-wrap: nowrap;
  align-items: center;
  padding: 8px 0;
}

.filter-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  flex: 1;
}

/* --- Select --- */
.filter-select {
  font-family: inherit;
  font-size: 0.85rem;
  padding: 6px 28px 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text-primary);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23787774' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  transition: border-color 200ms ease;
  min-width: 180px;
  flex: 0 1 auto;
}

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

.filter-select:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--focus-ring);
}

/* --- Lang Select --- */
.lang-select {
  font-family: inherit;
  font-size: 0.82rem;
  padding: 4px 24px 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23787774' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
  transition: border-color 200ms ease;
  flex-shrink: 0;
}

.lang-select:hover {
  border-color: var(--text-tertiary);
}

.lang-select:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--focus-ring);
}

/* --- Search --- */
.search-wrapper {
  position: relative;
  flex: 1;
  min-width: 180px;
}

.search-icon {
  position: absolute;
  inset-inline-start: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  color: var(--text-tertiary);
  pointer-events: none;
}

.search-input {
  font-family: inherit;
  font-size: 0.85rem;
  width: 100%;
  padding-block: 6px;
  padding-inline-start: 30px;
  padding-inline-end: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text-primary);
  transition: border-color 200ms ease;
}

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

.search-input:hover {
  border-color: var(--text-tertiary);
}

.search-input:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--focus-ring);
}

/* --- Toggle Switch --- */
.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

.toggle-input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

.toggle-track {
  position: relative;
  width: 30px;
  height: 18px;
  border-radius: 9px;
  background: var(--text-tertiary);
  transition: background 200ms ease;
  flex-shrink: 0;
}

.toggle-track::after {
  content: "";
  position: absolute;
  top: 2px;
  inset-inline-start: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--toggle-thumb);
  transition:
    transform 200ms cubic-bezier(0.16, 1, 0.3, 1),
    background 200ms ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.toggle-input:checked ~ .toggle-track {
  background: var(--accent);
}

.toggle-input:checked ~ .toggle-track::after {
  transform: translateX(12px);
}

.toggle-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--text-tertiary);
  transition: color 200ms ease;
}

.toggle-input:checked ~ .toggle-icon {
  color: var(--accent);
}

.toggle-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* --- Format Segmented Control --- */
.format-group {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.format-option {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--text-secondary);
  cursor: pointer;
  transition-property: color, background;
  transition-duration: 150ms;
  transition-timing-function: ease;
  user-select: none;
  -webkit-user-select: none;
}

.format-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: inherit;
  pointer-events: none;
}

.format-option:not(:last-child) {
  border-inline-end: 1px solid var(--border);
}

.format-option {
  border: none;
  background: var(--surface);
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

.format-option.active {
  background: var(--accent);
  color: var(--accent-text);
}

/* --- Action Row --- */
.action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.counter-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.selection-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.selection-btn {
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 4px 12px;
  cursor: pointer;
  transition-property: color, background, border-color;
  transition-duration: 150ms;
  transition-timing-function: ease;
}

.selection-btn:hover {
  color: var(--text-primary);
  background: var(--surface);
  border-color: var(--text-tertiary);
}

.selection-btn:active {
  transform: scale(0.96);
}

.selection-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.counter {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.deselect-hidden-btn {
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 450;
  color: var(--tag-stale-text);
  background: none;
  border: 1px solid var(--tag-stale-bg);
  border-radius: 5px;
  padding: 2px 10px;
  cursor: pointer;
  transition-property: color, background;
  transition-duration: 150ms;
  transition-timing-function: ease;
}

.deselect-hidden-btn:hover {
  background: var(--tag-stale-bg);
}

.deselect-hidden-btn:active {
  transform: scale(0.96);
}

.deselect-hidden-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.deselect-hidden-btn.is-hidden {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

/* --- Download Button --- */
.download-group {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.download-btn {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 20px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
  transition-property: background, transform;
  transition-duration: 200ms;
  transition-timing-function: ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.01em;
  min-width: 340px;
}

.download-btn:hover:not(:disabled) {
  background: var(--accent-hover);
}

.download-btn:active:not(:disabled) {
  transform: scale(0.96);
}

.download-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.download-btn-alt {
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 450;
  padding: 4px 10px;
  border: 1px solid var(--accent);
  background: var(--surface);
  color: var(--accent);
  cursor: pointer;
  transition-property: color, background, transform;
  transition-duration: 200ms;
  transition-timing-function: ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 5px;
}

.download-btn-alt:hover:not(:disabled) {
  color: var(--accent-hover);
}

.download-btn-alt:active:not(:disabled) {
  transform: scale(0.96);
}

.download-btn-alt:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.download-btn-alt[hidden] {
  display: none;
}

.download-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--accent-text);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1;
}

.download-group .format-option {
  padding: 3px 10px;
  font-size: 0.72rem;
  gap: 4px;
}

.download-group .format-icon {
  width: 12px;
  height: 12px;
}

/* --- Feed List --- */
.feed-list {
  min-height: 100vh;
}

/* --- Site Group --- */
.site-group {
  margin: 0 0 8px 0;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 6px 8px;
  background: var(--surface);
  content-visibility: auto;
  contain-intrinsic-size: 48px;
  overflow: hidden;
}

.site-group:last-child {
  margin-bottom: 0;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 2px 0 6px;
  margin-bottom: 8px;
}

.site-header-title {
  font-family: "Geist Sans", "SF Pro Display", "Helvetica Neue", sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.site-actions {
  display: flex;
  gap: 8px;
}

.site-action {
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 1px 4px;
  border-radius: 4px;
  transition-property: color, border-color;
  transition-duration: 150ms;
  transition-timing-function: ease;
  text-decoration: underline 1px dotted transparent;
  text-underline-offset: 3px;
}

.site-action:hover {
  color: var(--text-primary);
  border-color: var(--border-light);
  text-decoration-color: var(--border);
}

.site-action:active {
  transform: scale(0.96);
}

.cross-category-note {
  font-size: 0.73rem;
  color: var(--text-tertiary);
  padding-block: 6px 4px;
  padding-inline-start: 32px;
  padding-inline-end: 8px;
  margin-inline-start: 4px;
  border-inline-start: 1.5px solid var(--border-light);
  font-style: italic;
}

/* --- Category Group --- */
.category-group {
  margin-bottom: 28px;
}

.category-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 8px 0;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.category-title {
  font-family: "Geist Sans", "SF Pro Display", "Helvetica Neue", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

.category-title::before {
  content: "\25BE";
  display: inline-block;
  margin-right: 6px;
  transition: transform 0.2s;
  font-size: 0.8em;
  color: var(--text-secondary);
}

.category-counter {
  font-size: 0.78rem;
  font-weight: 450;
  color: var(--text-tertiary);
  margin-inline-start: 8px;
  flex-shrink: 0;
}

.category-group.collapsed .category-title::before {
  transform: rotate(-90deg);
}

.category-group.collapsed .category-feeds {
  display: none;
}

.category-actions {
  display: flex;
  gap: 12px;
}

.category-action {
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  transition-property: color, border-color;
  transition-duration: 150ms;
  transition-timing-function: ease;
  text-decoration: underline 1px dotted transparent;
  text-underline-offset: 3px;
}

.category-action:hover {
  color: var(--text-primary);
  border-color: var(--border-light);
  text-decoration-color: var(--border);
}

.category-action:active {
  transform: scale(0.96);
}

/* --- Category Feeds --- */
.category-feeds {
  display: flex;
  flex-direction: column;
}

/* --- Feed Item --- */
.feed-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 6px;
  content-visibility: auto;
  contain-intrinsic-size: 48px;
}

.feed-item:hover {
  background: var(--overlay);
}

.feed-item--sub {
  padding-inline-start: 32px;
  margin-inline-start: 4px;
  border-inline-start: 1.5px solid var(--border);
  border-radius: 0 6px 6px 0;
}

/* --- Custom Checkbox --- */
.feed-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 3px;
  position: relative;
  transition-property: background, border-color;
  transition-duration: 200ms;
  transition-timing-function: ease;
  background: var(--surface);
}

.feed-checkbox:hover {
  border-color: var(--text-tertiary);
}

.feed-checkbox:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.feed-checkbox:checked::after {
  content: "";
  position: absolute;
  inset-inline-start: 5px;
  top: 2px;
  width: 5px;
  height: 9px;
  border: solid var(--accent-text);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.feed-checkbox:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

/* --- Feed Label --- */
.feed-label {
  flex: 1;
  min-width: 0;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.feed-info {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.feed-text {
  flex: 1;
  min-width: 0;
}

.feed-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  margin-inline-start: auto;
}

.feed-name {
  display: block;
  font-size: 0.88rem;
  font-weight: 450;
  color: var(--text-primary);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.feed-meta {
  display: block;
  font-family:
    "Geist Mono", "SF Mono", "JetBrains Mono", "Cascadia Code", monospace;
  font-size: 0.72rem;
  color: var(--text-tertiary);
  margin-top: 1px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-link,
.feed-link,
.report-link {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition-property: color, background, opacity;
  transition-duration: 150ms;
  transition-timing-function: ease;
  opacity: 0.5;
  text-decoration: none;
}

.feed-item:hover .copy-link,
.feed-item:hover .feed-link,
.feed-item:hover .report-link {
  opacity: 1;
}

.copy-link:hover,
.feed-link:hover,
.report-link:hover {
  color: var(--accent);
  background: var(--selection);
  opacity: 1;
}

.copy-link:active,
.feed-link:active,
.report-link:active {
  transform: scale(0.96);
}

.copy-link {
  position: relative;
}
.copy-link svg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 200ms cubic-bezier(0.2, 0, 0, 1),
              transform 200ms cubic-bezier(0.2, 0, 0, 1),
              filter 200ms cubic-bezier(0.2, 0, 0, 1);
}
.copy-link .copy-icon {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  filter: blur(0px);
}
.copy-link .check-icon {
  transform: translate(-50%, -50%) scale(0.25);
  opacity: 0;
  filter: blur(4px);
}
.copy-link.copied {
  color: var(--accent);
  opacity: 1;
}
.copy-link.copied .copy-icon {
  transform: translate(-50%, -50%) scale(0.25);
  opacity: 0;
  filter: blur(4px);
}
.copy-link.copied .check-icon {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  filter: blur(0px);
}

/* --- Tags --- */
.tag {
  font-family: inherit;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
}

.tag-active {
  background: var(--tag-bg);
  color: var(--tag-text);
}

.tag-stale {
  background: var(--tag-stale-bg);
  color: var(--tag-stale-text);
}

.tag-proxy {
  background: var(--tag-proxy-bg);
  color: var(--tag-proxy-text);
}

.tag-duplicate {
  background: var(--tag-duplicate-bg);
  color: var(--tag-duplicate-text);
  cursor: pointer;
}

.popover {
  position: fixed;
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  white-space: normal;
  word-wrap: break-word;
  max-width: 260px;
  min-width: 120px;
  box-shadow: 0 4px 12px var(--shadow-hover);
  z-index: 100;
  pointer-events: none;
}

.popover[hidden] {
  display: none;
}

/* --- UI States --- */
.loading-state,
.error-state,
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.loading-state::before {
  content: "";
  display: block;
  width: 24px;
  height: 24px;
  margin: 0 auto 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes spin {
    to {
      transform: rotate(360deg);
    }
  }
}

.error-state {
  color: var(--tag-stale-text);
}

/* --- Footer --- */
.app-footer {
  text-align: center;
  padding: 40px 0 48px;
  border-top: 1px solid var(--border-light);
  margin-top: 8px;
}

.app-footer p {
  font-size: 0.78rem;
  color: var(--text-tertiary);
}

.app-footer a {
  color: var(--text-secondary);
  text-decoration: underline 1px dotted var(--border);
  text-underline-offset: 2px;
  transition: color 150ms ease;
}

.app-footer a:hover {
  color: var(--text-primary);
}

/* --- Responsive --- */
@media (max-width: 700px) {
  .app {
    padding: 0 16px;
  }

  .app-header {
    flex-direction: column;
    padding: 24px 0 16px;
  }

  .app-title {
    font-size: 1.15rem;
  }

  .app-subtitle {
    font-size: 0.78rem;
  }

  .toolbar {
    margin: 0 -16px;
    padding: 0 16px;
    border-bottom: 1px solid var(--border-light);
  }

  .toolbar-row {
    flex-direction: column;
    align-items: flex-start;
    padding: 6px 0;
  }

  .filter-group {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
  }

  .filter-select {
    flex: 1;
    min-width: calc(50% - 2px);
    font-size: 0.8rem;
    padding: 5px 24px 5px 8px;
  }

  .search-wrapper {
    min-width: 100%;
  }

  .search-input {
    padding: 5px 8px 5px 26px;
    font-size: 0.8rem;
  }

  .toolbar-row:last-of-type,
  .action-row {
    padding-bottom: 6px;
  }

  .action-row {
    gap: 6px;
  }

  .counter {
    font-size: 0.75rem;
  }

  .selection-btn {
    font-size: 0.72rem;
    padding: 3px 8px;
  }

  .download-group {
    position: fixed;
    bottom: max(12px, env(safe-area-inset-bottom, 12px));
    left: 50%;
    transform: translateX(-50%);
    z-index: 30;
    width: calc(100% - 32px);
    max-width: 320px;
    align-items: stretch;
    box-shadow: 0 4px 24px var(--shadow-hover);
  }

  .download-btn {
    justify-content: center;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 0.82rem;
  }

  .download-btn-alt {
    justify-content: center;
    padding: 5px 10px;
    font-size: 0.72rem;
    /* background: color-mix(in srgb, var(--accent) 10%, transparent); */
    border-radius: 8px;
  }

  .toolbar-row-narrow {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
    padding: 4px 0;
  }

  .toolbar-row-narrow .toggle {
    gap: 4px;
  }

  .toolbar-row-narrow .toggle-text {
    display: none;
  }

  .feed-list {
    padding-bottom: 80px;
  }

  .category-header {
    flex-direction: column;
    gap: 4px;
  }

  .feed-name {
    white-space: normal;
    word-break: break-word;
  }

  .feed-meta {
    white-space: normal;
    word-break: break-all;
  }
}

@media (max-width: 450px) {
  .app {
    padding: 0 12px;
  }

  .app-header {
    padding: 16px 0 12px;
  }

  .header-controls {
    gap: 4px;
  }

  .theme-switcher {
    align-self: flex-end;
  }

  .toolbar {
    margin-left: -12px;
    margin-right: -12px;
    padding-left: 12px;
    padding-right: 12px;
  }

  .toolbar-row {
    padding: 4px 0;
  }

  .format-group {
    width: 100%;
  }

  .format-option {
    flex: 1;
    text-align: center;
  }
}

@media (orientation: landscape) and (max-height: 520px) {
  .toolbar {
    position: static;
  }

  .app-header {
    padding: 10px 0 8px;
  }

  .app-title {
    font-size: 1rem;
  }

  .app-subtitle {
    display: none;
  }

  .app-title-row .github-link {
    display: none;
  }

  .toolbar-row {
    padding: 3px 0;
  }

  .toolbar-row-narrow {
    padding: 2px 0;
    gap: 3px;
  }

  .toolbar-row-narrow .toggle-text {
    display: none;
  }

  .download-group .format-option {
    padding: 2px 8px;
    font-size: 0.68rem;
  }

  .feed-list {
    padding-bottom: 70px;
  }
}