/* ==========================================================================
   THE DISPATCH — DESIGN SYSTEM STYLESHEET
   Implements shadcn design library with strict invariants:
   1. Preserves rounded corners and fully rounded geometry across all components.
   2. Preserves head (Cheltenham) and body (Libre Franklin) typography across all flows.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Libre+Franklin:ital,wght@0,200;0,300;0,400;0,500;0,600;1,300;1,400&family=Playfair+Display:ital,wght@0,400;0,500;0,600;1,400&family=Newsreader:ital,opsz,wght@0,6..72,200;0,6..72,300;0,6..72,400;0,6..72,500;1,6..72,300;1,6..72,400&display=swap');

@font-face {
  font-family: 'NYTCheltenham';
  src: local('NYTCheltenham'), local('nyt-cheltenham'), local('cheltenham'), local('Georgia');
  font-weight: 200 700;
  font-display: swap;
}

@font-face {
  font-family: 'cheltenham';
  src: local('cheltenham'), local('NYTCheltenham'), local('Georgia');
  font-weight: 200 700;
  font-display: swap;
}

/* ==========================================================================
   SHADCN SEMANTIC DESIGN TOKENS (LIGHT & DARK THEMES)
   ========================================================================== */
:root {
  /* HSL Color Tokens */
  --background: 0 0% 99%;         /* #fdfdfd */
  --foreground: 0 0% 21%;         /* #363636 */
  --card: 0 0% 100%;              /* #ffffff */
  --card-foreground: 0 0% 17%;    /* #2b2b2b */
  --popover: 0 0% 100%;           /* #ffffff */
  --popover-foreground: 0 0% 17%; /* #2b2b2b */
  --primary: 0 0% 21%;            /* #363636 */
  --primary-foreground: 0 0% 100%;/* #ffffff */
  --secondary: 0 0% 96%;          /* #f5f5f5 */
  --secondary-foreground: 0 0% 25%;/* #404040 */
  --muted: 0 0% 96%;              /* #f5f5f5 */
  --muted-foreground: 0 0% 45%;   /* #717171 */
  --accent: 0 0% 95%;             /* #f2f2f2 */
  --accent-foreground: 0 0% 10%;  /* #1a1a1a */
  --destructive: 0 84% 60%;       /* #ef4444 */
  --destructive-foreground: 0 0% 100%;
  --border: 0 0% 91%;             /* #e8e8e8 */
  --input: 0 0% 88%;              /* #e0e0e0 */
  --ring: 0 0% 21%;               /* #363636 */

  /* Invariant #1: Strictly Rounded & Fully Rounded Radii */
  --radius-sm: 0.75rem;           /* 12px */
  --radius-md: 1rem;              /* 16px */
  --radius-lg: 1.25rem;           /* 20px - News cards */
  --radius-xl: 1.5rem;            /* 24px - Bottom sheets */
  --radius-full: 9999px;          /* Fully rounded pills, buttons, badges, inputs */
  --radius: var(--radius-lg);

  /* Invariant #2: Preserved Typography Hierarchy */
  --font-cheltenham: 'nyt-cheltenham', 'NYTCheltenham', 'cheltenham', 'Newsreader', Georgia, serif;
  --font-body: 'Libre Franklin', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-reading: 'Newsreader', 'Playfair Display', Georgia, serif;

  /* Backward Compatibility Aliases */
  --color-headline: hsl(var(--foreground));
  --color-body: hsl(var(--card-foreground));
  --color-border: hsl(var(--border));
  --color-border-subtle: hsl(var(--border) / 0.6);
  --color-bg: hsl(var(--background));
  --color-card-bg: hsl(var(--card));
  --color-tag-bg: hsl(var(--secondary));
  --color-tag-text: hsl(var(--secondary-foreground));
  --color-text-muted: hsl(var(--muted-foreground));
  --color-active: hsl(var(--primary));
  --safe-bottom: max(10px, env(safe-area-inset-bottom, 10px));
}

/* ==========================================================================
   GLOBAL RESET & BASE STYLING
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  min-height: 100%;
  background-color: hsl(var(--background));
  color: hsl(var(--card-foreground));
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  transition: background-color 0.2s ease, color 0.2s ease;
  overscroll-behavior-y: contain;
}

::selection {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

/* ==========================================================================
   TYPOGRAPHY SYSTEM (PRESERVED & EXPANDED FOR ALL FLOWS)
   ========================================================================== */

/* Main Editorial Cheltenham Headline Specification */
.editorial-headline-spec {
  font-family: var(--font-cheltenham);
  font-size: 56px;
  font-weight: 250;
  line-height: 56px;
  color: hsl(var(--foreground));
  letter-spacing: -0.025em;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

@media (max-width: 640px) {
  .editorial-headline-spec {
    font-size: 2.125rem; /* 34px on mobile */
    line-height: 1.2;
  }
}

@media (max-width: 400px) {
  .editorial-headline-spec {
    font-size: 1.875rem; /* 30px on small mobile */
    line-height: 1.22;
  }
}

.font-cheltenham {
  font-family: var(--font-cheltenham);
}

.font-body {
  font-family: var(--font-body);
}

.font-reading {
  font-family: var(--font-reading);
}

/* Scrollbars */
.no-scrollbar::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}
.no-scrollbar {
  -ms-overflow-style: none !important;
  scrollbar-width: none !important;
}

::-webkit-scrollbar {
  width: 5px;
  height: 0px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: hsl(var(--border));
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--muted-foreground) / 0.5);
}

/* ==========================================================================
   PULL-TO-REFRESH COMPONENT
   ========================================================================== */
.ptr-container {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 40;
  display: flex;
  justify-content: center;
  pointer-events: none;
  transform: translateY(-45px);
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.ptr-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background-color: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  opacity: 0;
  transform: scale(0.75);
  transition: opacity 0.2s, transform 0.2s;
  color: hsl(var(--foreground));
}

.ptr-pill.visible {
  opacity: 1;
  transform: scale(1);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinning {
  animation: spin 0.8s linear infinite;
}

/* ==========================================================================
   MAIN FEED LAYOUT & CARDS (SHADCN CARD RECIPE)
   ========================================================================== */
.feed-layout {
  width: 100%;
  max-width: 56rem; /* 896px = max-w-4xl */
  margin-left: auto;
  margin-right: auto;
  padding: 1.25rem 1rem 7.5rem 1rem;
}

@media (min-width: 640px) {
  .feed-layout {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    padding-top: 1.75rem;
  }
}

/* ==========================================================================
   FEED TOOLBAR & CONTROLS (READ FILTER BUTTON AT TOP RIGHT OF NEWS CARDS)
   ========================================================================== */
.feed-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding: 0.25rem 0.25rem 0.5rem 0.25rem;
}

.feed-toolbar-title-wrap {
  min-width: 0;
  flex: 1 1 auto;
  overflow: hidden;
}

.feed-current-heading {
  font-family: var(--font-cheltenham);
  font-size: 1.375rem; /* 22px */
  font-weight: 250;
  letter-spacing: -0.025em;
  color: hsl(var(--foreground));
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 640px) {
  .feed-current-heading {
    font-size: 1.75rem; /* 28px */
  }
}

.feed-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* Search Entry Field with Search Icon (Pill Geometry) */
.feed-search-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 2.625rem; /* 42px - exactly matches .btn-refresh-feed & .btn-read-toggle */
  width: 2.625rem;  /* 42px - collapsed round circle */
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-full); /* Invariant #1: Preserved fully rounded pill */
  transition: width 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.15s cubic-bezier(0.16, 1, 0.3, 1),
              background-color 0.15s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
  flex-shrink: 0;
  cursor: pointer;
  overflow: hidden;
}

.feed-search-wrap:hover {
  border-color: hsl(var(--input));
}

.feed-search-wrap:hover:not(:focus-within):not(.has-value) {
  background-color: hsl(var(--secondary));
  border-color: hsl(var(--border));
}

.feed-search-wrap:hover:not(:focus-within):not(.has-value) .feed-search-icon {
  color: hsl(var(--foreground));
}

.feed-search-wrap:active:not(:focus-within):not(.has-value) {
  transform: scale(0.94);
}

.feed-search-wrap:focus-within,
.feed-search-wrap.has-value {
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 1px hsl(var(--ring));
  width: 165px;
  cursor: auto;
}

@media (min-width: 640px) {
  .feed-search-wrap:focus-within,
  .feed-search-wrap.has-value {
    width: 230px;
  }
}

.feed-search-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem; /* 40px inside 42px circle (minus 2px borders) */
  height: 100%;
  padding-left: 0;
  color: hsl(var(--muted-foreground));
  pointer-events: none;
  flex-shrink: 0;
  transition: width 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              padding-left 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              color 0.15s ease;
}

.feed-search-icon svg {
  width: 0.9375rem; /* 15px */
  height: 0.9375rem;
}

.feed-search-wrap:focus-within .feed-search-icon,
.feed-search-wrap.has-value .feed-search-icon {
  width: auto;
  padding-left: 0.875rem;
}

.feed-search-input {
  flex: 0;
  width: 0;
  min-width: 0;
  height: 100%;
  border: none;
  outline: none;
  background: transparent;
  padding: 0;
  font-family: var(--font-body);
  font-size: 0.875rem; /* 14px */
  color: hsl(var(--foreground));
  box-sizing: border-box;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.feed-search-wrap:focus-within .feed-search-input,
.feed-search-wrap.has-value .feed-search-input {
  flex: 1;
  width: 100%;
  min-width: 0;
  padding: 0 0.5rem 0 0.5rem;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.2s ease 0.05s;
}

.feed-search-input::placeholder {
  color: hsl(var(--muted-foreground));
  opacity: 0.85;
}

/* Cross Button to Clear Search Text Entry */
.feed-search-clear-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.375rem; /* 22px */
  height: 1.375rem;
  margin-right: 0.5rem;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  border: none;
  background-color: hsl(var(--muted));
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 0;
}

.feed-search-clear-btn:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--foreground));
}

.feed-search-clear-btn:active {
  transform: scale(0.92);
}

.feed-search-clear-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.feed-search-clear-btn svg {
  width: 0.75rem; /* 12px */
  height: 0.75rem;
}

/* Subtle Search Result Highlight (Broadsheet Editorial Wash) */
.search-highlight {
  background-color: hsla(45, 96%, 54%, 0.28);
  color: inherit;
  padding: 0.05em 0.22em;
  border-radius: 4px;
  font-weight: 500;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.dark .search-highlight {
  background-color: hsla(45, 92%, 52%, 0.35);
  color: hsl(var(--foreground));
}

/* Feed Refresh Button next to Search Bar (Strictly Fully Rounded Circular Pill) */
/* Avoid refresh button for mobile resolution (< 640px). Keep for any larger resolution (>= 640px). */
.btn-refresh-feed {
  display: none;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 2.625rem;  /* 42px - exactly matches .feed-search-wrap & .btn-read-toggle */
  height: 2.625rem; /* 42px */
  border-radius: var(--radius-full); /* Invariant #1: Preserved fully rounded pill */
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  box-sizing: border-box;
  padding: 0;
}

@media (min-width: 640px) {
  .btn-refresh-feed {
    display: inline-flex;
  }
}

/* Allow design system preview showcase to display component across all docs viewports */
.ds-preview .btn-refresh-feed {
  display: inline-flex;
}

.btn-refresh-feed svg,
.btn-refresh-feed .refresh-icon {
  width: 1.0625rem;  /* 17px */
  height: 1.0625rem; /* 17px */
  flex-shrink: 0;
  color: hsl(var(--foreground));
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-refresh-feed:hover {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
  border-color: hsl(var(--border));
}

.btn-refresh-feed:active {
  transform: scale(0.94);
}

.btn-refresh-feed:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.btn-refresh-feed:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-refresh-feed.is-refreshing svg,
.btn-refresh-feed.is-refreshing .refresh-icon {
  animation: spin 0.8s linear infinite;
}

@media (max-width: 440px) {
  .feed-search-wrap:focus-within,
  .feed-search-wrap.has-value {
    width: 160px;
  }
}

@media (max-width: 380px) {
  .feed-search-wrap:focus-within,
  .feed-search-wrap.has-value {
    width: 135px;
  }
  .btn-read-toggle {
    padding: 0 0.75rem;
  }
}

/* "Read" Toggle Button at Top Right of News Cards */
.btn-read-toggle {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 2.625rem; /* 42px - same size and property as buttons in detail view */
  padding: 0 1.125rem;
  border-radius: var(--radius-full); /* Preserved fully rounded pill */
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
  border: 1px solid hsl(var(--border));
  font-family: var(--font-body);
  font-size: 0.875rem; /* 14px */
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  box-sizing: border-box;
}

.btn-read-toggle svg {
  width: 1.125rem;  /* 18px */
  height: 1.125rem; /* 18px */
  flex-shrink: 0;
}

.btn-read-toggle:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  border-color: hsl(var(--border));
}

.btn-read-toggle:active {
  transform: scale(0.95);
}

.btn-read-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

/* Selected state: Eye with cross */
.btn-read-toggle.active {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
  border-color: hsl(var(--primary));
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.read-toggle-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.read-toggle-svg {
  flex-shrink: 0;
}

.cards-stream {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 1.25rem;
}

#feed-skeletons[hidden],
#feed-skeletons.hidden {
  display: none !important;
}

/* News Card Primitive */
.news-card,
.card {
  width: 100%;
  display: block;
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  border-radius: var(--radius-lg); /* Preserved rounded-2xl (20px) */
  border: 1px solid hsl(var(--border));
  padding: 1.25rem;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
  transition: border-color 0.2s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.2s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.15s ease-out;
  outline: none;
  box-sizing: border-box;
}

@media (min-width: 640px) {
  .news-card,
  .card {
    padding: 1.625rem;
  }
}

.news-card:hover,
.card:hover {
  border-color: hsl(var(--border) / 0.8);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.news-card:focus-visible,
.card:focus-visible {
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.news-card:active {
  transform: scale(0.995);
}

/* Card Read State & Hiding Animation */
.news-card.is-read {
  opacity: 0.76;
}

.news-card.is-read:hover {
  opacity: 1;
}

.news-card.card-hiding {
  opacity: 0;
  transform: scale(0.97) translateY(-8px);
  transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

/* Card Header Row with Cheltenham Headline and Eye Icon Button */
.card-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.875rem;
  margin-bottom: 0.5rem;
}

.card-header-row .card-title {
  flex: 1;
  margin-bottom: 0;
}

/* Card Mark-as-read Button (Eye / Crossed Eye Icon) - Same size & property as detail view buttons */
.card-read-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.625rem;  /* 42px matching detail view button */
  height: 2.625rem; /* 42px */
  border-radius: var(--radius-full); /* Preserved fully rounded */
  border: 1px solid var(--color-border-subtle);
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
}

.card-read-btn svg {
  width: 1.125rem;  /* 18px */
  height: 1.125rem; /* 18px */
  flex-shrink: 0;
}

.card-read-btn:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  border-color: hsl(var(--border));
}

.card-read-btn:active {
  transform: scale(0.95);
}

.card-read-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.card-read-btn.is-read {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
  border-color: var(--color-border-subtle);
}

/* Preserved Cheltenham Heading in Cards */
.card-title {
  font-family: var(--font-cheltenham);
  font-size: 1.5rem; /* 24px */
  line-height: 1.35;
  font-weight: 250;
  color: hsl(var(--foreground));
  letter-spacing: -0.025em;
  margin-bottom: 0.5rem;
  transition: color 0.15s ease;
}

@media (min-width: 640px) {
  .card-title {
    font-size: 1.875rem; /* 30px */
  }
}

.news-card:hover .card-title {
  color: hsl(var(--primary));
}

/* Metadata Row (Libre Franklin) */
.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  column-gap: 0.35rem;
  row-gap: 0.25rem;
  font-size: 0.75rem;
  font-family: var(--font-body);
  color: hsl(var(--muted-foreground));
  margin-bottom: 0.75rem;
}

.meta-source {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: hsl(var(--muted-foreground));
}

.meta-divider {
  color: hsl(var(--border));
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 11px;
  color: hsl(var(--muted-foreground));
}

.meta-item svg {
  color: hsl(var(--muted-foreground));
}

.meta-item.meta-read-time,
.meta-read-time {
  font-weight: 600;
  color: hsl(var(--foreground));
}

.meta-item.meta-read-time svg,
.meta-read-time svg {
  color: hsl(var(--foreground));
}

/* Card Body Prose (Libre Franklin) */
.card-description {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.625;
  color: hsl(var(--muted-foreground));
  font-weight: 300;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (min-width: 640px) {
  .card-description {
    font-size: 1rem;
  }
}

.card-tags {
  margin-top: 1rem;
  padding-top: 0.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
}

/* Fully Rounded Badge / Tag Pill */
.tag-pill-badge,
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full); /* Preserved fully rounded pill */
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
  border: 1px solid hsl(var(--border) / 0.6);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.25;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  cursor: default; /* Non-tappable by default */
}

/* Tappable Recommended Tag Pill with + Button */
button.tag-pill-badge.tag-pill-add,
.tag-pill-badge.tag-pill-add {
  gap: 0.35rem;
  padding: 0.2rem 0.2rem 0.2rem 0.75rem;
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
  border: 1px solid hsl(var(--border) / 0.8);
  cursor: pointer;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.tag-pill-badge.tag-pill-add .tag-pill-text {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.25;
}

.tag-pill-plus-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.125rem;
  height: 1.125rem;
  color: hsl(var(--muted-foreground));
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
}

.tag-pill-badge.tag-pill-add:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  border-color: hsl(var(--border));
}

.tag-pill-badge.tag-pill-add:hover .tag-pill-plus-icon {
  color: hsl(var(--accent-foreground));
}

.tag-pill-badge.tag-pill-add:active {
  transform: scale(0.96);
}

.tag-pill-badge.tag-pill-add:focus-visible {
  outline: 2px solid hsl(var(--ring));
  outline-offset: 2px;
}

.tag-pill-badge.clickable {
  cursor: pointer;
}

.tag-pill-badge.clickable:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  border-color: hsl(var(--border));
}

.badge-secondary {
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
}

.badge-outline {
  background-color: transparent;
  border: 1px solid hsl(var(--border));
  color: hsl(var(--foreground));
}

.badge-destructive {
  background-color: hsl(var(--destructive));
  color: hsl(var(--destructive-foreground));
}

/* ==========================================================================
   SKELETON LOADING STATE (SHADCN SKELETON SPEC)
   ========================================================================== */
.skeleton-card {
  background-color: hsl(var(--card));
  border-radius: var(--radius-lg);
  border: 1px solid hsl(var(--border));
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

@media (min-width: 640px) {
  .skeleton-card {
    padding: 1.75rem;
  }
}

.skeleton-box,
.skeleton {
  background-color: hsl(var(--muted));
  border-radius: var(--radius-sm);
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.42; }
}

/* ==========================================================================
   EMPTY STATE VIEW (SHADCN EMPTY RECIPE)
   ========================================================================== */
.empty-state {
  max-width: 28rem;
  margin: 5rem auto;
  text-align: center;
  padding: 0 1rem;
}

.empty-icon-wrap {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-full);
  background-color: hsl(var(--secondary));
  border: 1px solid hsl(var(--border));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
  color: hsl(var(--muted-foreground));
}

/* Preserved Cheltenham in Empty State Heading */
.empty-title {
  font-family: var(--font-cheltenham);
  font-size: 1.75rem;
  font-weight: 250;
  letter-spacing: -0.02em;
  color: hsl(var(--foreground));
  margin-bottom: 1.25rem;
}

.empty-title:has(+ .empty-desc:not(:empty)) {
  margin-bottom: 0.5rem;
}

.empty-desc:empty {
  display: none;
}

.empty-desc {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: hsl(var(--muted-foreground));
  font-weight: 300;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

/* ==========================================================================
   BUTTON RECIPES (SHADCN BUTTON VARIANTS WITH FULLY ROUNDED GEOMETRY)
   ========================================================================== */
.btn,
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius-full); /* Preserved fully rounded */
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid hsl(var(--primary));
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  box-sizing: border-box;
}

.btn:hover,
.btn-primary:hover {
  opacity: 0.92;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn:active,
.btn-primary:active {
  transform: scale(0.97);
}

.btn:focus-visible,
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.btn-secondary {
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
  border: 1px solid hsl(var(--border));
}

.btn-secondary:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

.btn-outline {
  background-color: transparent;
  border: 1px solid hsl(var(--border));
  color: hsl(var(--foreground));
}

.btn-outline:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  border-color: hsl(var(--border));
}

.btn-ghost {
  background-color: transparent;
  border: 1px solid transparent;
  color: hsl(var(--foreground));
}

.btn-ghost:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

/* ==========================================================================
   FIXED BOTTOM CATEGORIES BAR
   ========================================================================== */
.bottom-topics-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 30;
  background-color: hsl(var(--card) / 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid hsl(var(--border));
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.04);
  /* 0.75rem nav padding + 0.25rem scroll-row padding = 1rem (16px) total edge padding,
     matching the 1rem (16px) left spacing from screen edge to # button segment */
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  transition: all 0.2s ease;
}

@media (max-width: 639px) {
  .bottom-topics-nav {
    /* Mobile: 0.75rem nav padding + 0.25rem scroll-row padding = 1rem (16px) total padding,
       matching the space from left edge to the # button (1rem / 16px). */
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  /* Keep the reader action bar aligned with this mobile topics-bar benchmark. */
  .modal-bottom-bar {
    min-height: 4.625rem;
    display: flex;
    align-items: center;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

.bottom-topics-inner {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 0;
}

@media (min-width: 640px) {
  .bottom-topics-inner {
    max-width: 56rem;
    margin: 0 auto;
    padding: 0;
  }
}

.topics-scroll-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  overflow-y: hidden;
  /* 0.25rem (4px) top and bottom padding provides clearance for focus rings and active scale */
  padding-top: 0.25rem;
  padding-bottom: 0.25rem;
  /* Mobile: 1rem left padding aligns # button start with news card start edge (feed-layout has 1rem padding) */
  padding-left: 1rem;
  padding-right: 1rem;
  width: 100%;
  box-sizing: border-box;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;

  /* Edge-to-edge scroll mask: extends to the very edge of screen (0 to 100%) without cut-off before the edge */
  --scroll-mask-size: 1rem;
  --scroll-mask-left: black;
  --scroll-mask-right: transparent;
  -webkit-mask-image: linear-gradient(
    to right,
    var(--scroll-mask-left, black) 0,
    black var(--scroll-mask-size, 1rem),
    black calc(100% - var(--scroll-mask-size, 1rem)),
    var(--scroll-mask-right, transparent) 100%
  );
  mask-image: linear-gradient(
    to right,
    var(--scroll-mask-left, black) 0,
    black var(--scroll-mask-size, 1rem),
    black calc(100% - var(--scroll-mask-size, 1rem)),
    var(--scroll-mask-right, transparent) 100%
  );
}

@media (min-width: 640px) {
  .topics-scroll-row {
    /* Larger resolution (>= 640px): 1.5rem padding aligns # button with news cards (feed-layout has 1.5rem padding) */
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    --scroll-mask-size: 1.5rem;
  }
}

/* Hash Icon (#) Sheet Toggle Button */
.btn-grid-toggle {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.625rem;  /* 42px matching sheet footer circular button */
  height: 2.625rem; /* 42px */
  border-radius: var(--radius-full); /* Preserved fully rounded */
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-grid-toggle svg {
  width: 1.125rem;  /* 18px clear icon size */
  height: 1.125rem; /* 18px */
}

.btn-grid-toggle:hover {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
  border-color: hsl(var(--border));
}

.btn-grid-toggle:active {
  transform: scale(0.95);
}

.btn-grid-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

/* Topic Filter Pill */
.topic-filter-pill {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  height: 2.625rem; /* 42px matching sheet footer input height */
  padding-left: 1rem;
  padding-right: calc((2.625rem - 1.4375rem) / 2); /* 0.59375rem (~9.5px) — matching top-to-number-tag padding */
  padding-top: 0;
  padding-bottom: 0;
  gap: 0.5rem; /* 8px relaxed gap between label and count badge */
  border-radius: var(--radius-full); /* Preserved fully rounded */
  font-family: var(--font-body);
  font-size: 0.875rem; /* 14px matching sheet footer input text size */
  font-weight: 500;
  line-height: 1;
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
}

.topic-filter-pill span:first-child {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.topic-filter-pill:hover {
  border-color: hsl(var(--border) / 0.8);
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
}

.topic-filter-pill:active {
  transform: scale(0.96);
}

.topic-filter-pill.active {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border-color: hsl(var(--primary));
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

/* Number with Backdrop inside Tag Pill */
.topic-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.4375rem; /* 23px balanced circular backdrop for single digits */
  height: 1.4375rem;    /* 23px vertically centered backdrop */
  padding: 0 0.375rem; /* 6px inner padding for multi-digits */
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.75rem; /* 12px scaled with 14px pill text */
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  text-align: center;
  background-color: hsl(var(--secondary));
  color: hsl(var(--muted-foreground));
  transition: background-color 0.15s ease, color 0.15s ease;
}

.topic-filter-pill.active .topic-count-badge {
  background-color: hsl(var(--primary-foreground) / 0.2);
  color: hsl(var(--primary-foreground));
}

/* ==========================================================================
   BOTTOM SHEET MODAL (TOPIC & CATEGORY MANAGEMENT)
   ========================================================================== */
.sheet-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background-color: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease-out;
}

.sheet-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.sheet-card {
  position: relative;
  width: 100%;
  max-width: calc(56rem - 3rem); /* 53rem (848px) - matches news card width in feed-layout */
  margin: 0 auto;
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  border-top-left-radius: var(--radius-xl); /* Preserved rounded-t-3xl (24px) */
  border-top-right-radius: var(--radius-xl);
  border-top: 1px solid hsl(var(--border));
  border-left: 1px solid hsl(var(--border));
  border-right: 1px solid hsl(var(--border));
  border-bottom: none;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  max-height: 85vh;
  overflow: hidden;
  transform: translateY(100%);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (max-width: 639px) {
  .sheet-card {
    border-left: none;
    border-right: none;
  }
}

@media (min-width: 640px) {
  .sheet-card {
    width: calc(100% - 3rem);
  }

  .sheet-body {
    padding-left: 1.625rem;
    padding-right: 1.625rem;
  }

  .sheet-footer {
    padding-left: 1.625rem;
    padding-right: 1.625rem;
  }

  .btn-sheet-edit {
    right: 1.625rem;
  }
}

.sheet-backdrop.open .sheet-card {
  transform: translateY(0);
}

/* Floating sheet chrome: the drag handle and edit action sit on the top edge
   so the first category heading can align with the edit button. */
.sheet-handle-wrap {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 3;
  min-height: 0;
  padding: 0;
  display: block;
  pointer-events: none;
}

/* Edit toggle in the sheet's top-right corner, mirroring the footer dismiss
   control: 2.625rem outlined circle inset 1.25rem from the edge. */
.btn-sheet-edit {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  transform: none;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2.625rem;
  height: 2.625rem;
  padding: 0;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-full); /* Preserved fully rounded */
  background-color: hsl(var(--card));
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  pointer-events: auto;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.btn-sheet-edit svg {
  pointer-events: none;
  flex-shrink: 0;
}

.btn-sheet-edit:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--foreground));
}

.btn-sheet-edit[aria-pressed="true"] {
  background-color: hsl(var(--accent));
  border-color: hsl(var(--ring) / 0.35);
  color: hsl(var(--accent-foreground));
}

.btn-sheet-edit[aria-pressed="true"]:hover {
  background-color: hsl(var(--accent));
  border-color: hsl(var(--ring) / 0.5);
  color: hsl(var(--accent-foreground));
}

.btn-sheet-edit:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.btn-sheet-edit:disabled {
  pointer-events: none;
  opacity: 0.5;
}

.sheet-handle {
  position: absolute;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 2.5rem;
  height: 0.25rem;
  background-color: hsl(var(--muted-foreground) / 0.3);
  border-radius: var(--radius-full);
}

.sheet-body {
  flex: 1;
  overflow-y: auto;
  /* Top padding centers the first category heading on the edit button's line
     now that the handle sits on the sheet's top edge. */
  padding: 1.125rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.sheet-categories-container {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  padding: 0.25rem 0.25rem 0.5rem;
}

.sheet-category-section {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  border-radius: var(--radius-lg);
}

/* Drag feedback is scoped to the pill landing zone only — the category
   heading stays untouched and no box is drawn around the whole section. */

.sheet-category-header {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

/* Category Headings in Sheet (Expanded Cheltenham Headline Specification) */
.sheet-category-heading {
  font-family: var(--font-cheltenham);
  font-size: 1.25rem; /* 20px */
  font-weight: 350;
  color: hsl(var(--foreground));
  letter-spacing: -0.015em;
  margin: 0;
  user-select: none;
}

.sheet-category-remove-btn {
  display: none;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 1.375rem;
  height: 1.375rem;
  padding: 0;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-full);
  background-color: hsl(var(--card));
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

/* Only revealed while the sheet is in edit mode */
.sheet-categories-container.editing .sheet-category-remove-btn {
  display: inline-flex;
}

.sheet-category-remove-btn:hover {
  background-color: hsl(var(--destructive) / 0.12);
  border-color: hsl(var(--destructive) / 0.4);
  color: hsl(var(--destructive));
}

.sheet-category-remove-btn:active {
  transform: scale(0.92);
}

.sheet-category-remove-btn:focus-visible,
.add-mode-option:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.sheet-category-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  border-radius: var(--radius-full);
  transition: background-color 0.15s ease, outline-color 0.15s ease;
  outline: 1px dashed transparent;
  outline-offset: 4px;
}

.sheet-category-pills-wrap:empty {
  display: none;
}

.sheet-category-section.drag-over .sheet-category-pills-wrap.has-tags {
  background-color: hsl(var(--accent) / 0.5);
  outline-color: hsl(var(--muted-foreground) / 0.5);
}

/* Tag Pill inside Sheet with inline remove cross */
.sheet-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  height: 2.25rem; /* 36px relaxed tappable size */
  padding: 0 0.875rem;
  border-radius: var(--radius-full); /* Preserved fully rounded */
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  line-height: 1;
}

/* Tighten right padding when remove button is visible in edit mode */
.sheet-categories-container.editing .sheet-tag-pill {
  padding-right: 0.5rem;
}

.sheet-tag-pill:hover {
  border-color: hsl(var(--border) / 0.8);
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
}

.sheet-tag-pill:active {
  transform: scale(0.97);
}

.sheet-tag-pill.dragging {
  opacity: 0.52;
  transform: scale(0.97);
}

.sheet-category-empty {
  height: 2.25rem; /* same tappable height as a tag pill */
  border: 1px dashed hsl(var(--border));
  border-radius: var(--radius-full);
  background-color: transparent;
  transition: border-color 0.15s ease, background-color 0.15s ease;
  pointer-events: none;
}

.sheet-category-section.drag-over .sheet-category-empty {
  border-color: hsl(var(--muted-foreground) / 0.5);
  background-color: hsl(var(--accent) / 0.5);
}

.sheet-tag-remove-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  padding: 0;
  margin-left: 0.125rem;
  transition: all 0.15s ease;
}

/* Only revealed while the sheet is in edit mode */
.sheet-categories-container.editing .sheet-tag-remove-btn {
  display: inline-flex;
}

.sheet-tag-remove-btn:hover {
  color: hsl(var(--destructive));
  background-color: hsl(var(--destructive) / 0.12);
}

.category-prediction-badge {
  position: absolute;
  right: 0.75rem;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background-color: hsl(var(--secondary));
  color: hsl(var(--primary));
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  border: 1px solid hsl(var(--border));
  pointer-events: none;
}

.sheet-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
}

.add-topic-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.add-mode-toggle {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.125rem;
  padding: 0.1875rem;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-full);
  background-color: hsl(var(--secondary));
}

.add-mode-option {
  min-height: 2rem;
  padding: 0 0.625rem;
  border: 0;
  border-radius: var(--radius-full);
  background-color: transparent;
  color: hsl(var(--muted-foreground));
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.add-mode-option:active {
  transform: scale(0.94);
}

.add-mode-option.active {
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
  box-shadow: 0 1px 2px hsl(var(--foreground) / 0.08);
}

.btn-dismiss-sheet {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.625rem;
  height: 2.625rem;
  border-radius: var(--radius-full); /* Preserved fully rounded */
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, transform 0.15s, color 0.15s;
  box-sizing: border-box;
}

.btn-dismiss-sheet:hover {
  background-color: hsl(var(--accent));
  border-color: hsl(var(--border));
  color: hsl(var(--foreground));
}

.btn-dismiss-sheet:active {
  transform: scale(0.95);
}

.btn-dismiss-sheet:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

/* Fully Rounded Input Field */
.topic-input,
.input {
  flex: 1;
  height: 2.625rem;
  padding: 0 1.125rem;
  border-radius: var(--radius-full); /* Preserved fully rounded */
  border: 1px solid hsl(var(--input));
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: hsl(var(--foreground));
  background-color: hsl(var(--card));
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  box-sizing: border-box;
}

.topic-input::placeholder,
.input::placeholder {
  color: hsl(var(--muted-foreground));
}

.topic-input:focus,
.input:focus {
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 1px hsl(var(--ring));
}

.btn-add-topic {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.625rem;
  height: 2.625rem;
  border-radius: var(--radius-full); /* Preserved fully rounded */
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border: 1px solid hsl(var(--primary));
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, transform 0.15s, opacity 0.15s;
  padding: 0;
  box-sizing: border-box;
}

.btn-add-topic:hover {
  opacity: 0.92;
}

.btn-add-topic:active {
  transform: scale(0.95);
}

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

.btn-add-topic:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.category-delete-dialog {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background-color: hsl(var(--foreground) / 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.category-delete-dialog[hidden] {
  display: none;
}

.category-delete-card {
  width: min(100%, 24rem);
  padding: 1.5rem;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-lg);
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  box-shadow: 0 1.25rem 3rem hsl(var(--foreground) / 0.18);
}

.category-delete-card h2 {
  font-family: var(--font-cheltenham);
  font-size: 1.5rem;
  font-weight: 250;
  letter-spacing: -0.025em;
  color: hsl(var(--foreground));
}

.category-delete-card p {
  margin-top: 0.5rem;
  color: hsl(var(--muted-foreground));
  font-family: var(--font-body);
  font-size: 0.875rem;
}

.category-delete-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.btn-category-dialog-secondary,
.btn-category-dialog-destructive {
  min-height: 2.5rem;
  padding: 0 1rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-category-dialog-secondary {
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
}

.btn-category-dialog-destructive {
  border: 1px solid hsl(var(--destructive));
  background-color: hsl(var(--destructive));
  color: hsl(var(--destructive-foreground));
}

.btn-category-dialog-secondary:focus-visible,
.btn-category-dialog-destructive:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

@media (max-width: 520px) {
  .add-topic-form {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 0.5rem;
  }

  /* Tag/Category toggle: top row, hug content width */
  .add-mode-toggle {
    grid-column: 1 / -1;
    grid-row: 1;
    width: fit-content;
  }

  /* Down-arrow dismiss: bottom row start */
  .btn-dismiss-sheet {
    grid-row: 2;
    grid-column: 1;
  }

  /* Input container: bottom row, fills remaining space */
  .add-topic-form > div[style] {
    grid-row: 2;
    grid-column: 2;
    display: flex !important;
    align-items: center !important;
    min-width: 0;
  }

  /* Submit (+) button: bottom row end */
  .btn-add-topic {
    grid-row: 2;
    grid-column: 3;
  }
}

/* ==========================================================================
   EXPAND MODAL (READER & ORIGINAL MODE)
   ========================================================================== */
.modal-expand {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  flex-direction: column;
  background-color: hsl(var(--background));
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease-out;
}

.modal-expand.open {
  opacity: 1;
  pointer-events: auto;
}

.reading-progress-line {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: hsl(var(--muted));
  z-index: 70;
}

.reading-progress-fill {
  height: 100%;
  background-color: hsl(var(--primary));
  width: 0%;
  transition: width 0.1s linear;
}

.modal-content-area {
  flex: 1;
  position: relative;
  overflow: hidden;
  background-color: hsl(var(--background));
}

/* Original Mode Layout */
.original-view-wrap {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.original-header-bar {
  width: 100%;
  background-color: hsl(var(--secondary));
  border-bottom: 1px solid hsl(var(--border));
  padding: 0.5rem 1rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.original-url-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  max-width: 28rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.original-iframe-container {
  position: relative;
  flex: 1;
  width: 100%;
  height: 100%;
  background-color: hsl(var(--background));
}

.original-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.iframe-fallback-overlay {
  position: absolute;
  bottom: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  max-width: 32rem;
  width: 92%;
  background-color: hsl(var(--card) / 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid hsl(var(--border));
  padding: 0.75rem;
  border-radius: var(--radius-lg); /* Preserved rounded-2xl */
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
}

/* ==========================================================================
   READ MODE & LONGFORM PROSE FLOW
   ========================================================================== */
.read-mode-scroll {
  width: 100%;
  height: 100%;
  overflow-y: auto;
  padding: 2rem 1rem 5.5rem 1rem;
  background-color: hsl(var(--background));
  scroll-behavior: smooth;
}

@media (min-width: 640px) {
  .read-mode-scroll {
    padding: 3rem 1.5rem 5.5rem 1.5rem;
  }
}

.read-mode-inner {
  width: 100%;
  max-width: calc(56rem - 3rem); /* 53rem (848px) - matches news card & content width of home page */
  margin: 0 auto;
}

.reader-byline-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid hsl(var(--border));
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
}

.reader-byline-left {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.reader-source-badge {
  font-family: var(--font-body);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: hsl(var(--muted-foreground));
}

.reader-byline-right {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: hsl(var(--muted-foreground));
}

.reader-metadata,
.reader-published-date {
  display: inline-flex;
  align-items: center;
}

.reader-metadata {
  gap: 0.35rem;
}

.reader-published-date {
  gap: 0.25rem;
}

.reader-read-time-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  color: hsl(var(--foreground));
}

.reader-read-time-item svg {
  color: hsl(var(--foreground));
}

@media (max-width: 639px) {
  .read-mode-scroll {
    padding-top: 1rem;
  }

  .reader-byline-bar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    column-gap: 0.75rem;
    row-gap: 0.375rem;
  }

  .reader-byline-left {
    grid-column: 1;
    grid-row: 1;
  }

  .reader-byline-right {
    display: contents;
  }

  .reader-metadata {
    grid-column: 1;
    grid-row: 2;
  }

  #btn-modal-external {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
  }
}

.reader-deck {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 300;
  color: hsl(var(--muted-foreground));
  line-height: 1.6;
  margin-bottom: 1.5rem;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

@media (min-width: 640px) {
  .reader-deck {
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  .reader-deck {
    font-size: 1rem;
    line-height: 1.55;
    margin-bottom: 1.25rem;
  }
}

.reader-hero-figure {
  margin: 2rem 0;
}

.reader-hero-img-box {
  width: 100%;
  border-radius: var(--radius-lg); /* Preserved rounded-2xl (20px) */
  overflow: hidden;
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--secondary));
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}

.reader-hero-img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: cover;
  display: block;
}

@media (max-width: 640px) {
  .reader-hero-figure {
    margin: 1.25rem 0 1.5rem;
  }

  .reader-hero-img {
    max-height: 280px;
  }
}

.reader-hero-caption {
  margin-top: 0.5rem;
  text-align: center;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  font-style: italic;
}

/* Editorial Reader Prose Hierarchy */
.reader-prose {
  font-family: var(--font-body);
  color: hsl(var(--card-foreground));
  font-size: 1.125rem;
  line-height: 1.8;
  letter-spacing: -0.005em;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

@media (max-width: 640px) {
  .reader-prose {
    font-size: 1.0625rem;
    line-height: 1.7;
  }
}

.reader-prose p {
  margin-top: 1.35em;
  margin-bottom: 1.35em;
}

/* Preserved Cheltenham Subheadings in Prose */
.reader-prose h2 {
  font-family: var(--font-cheltenham);
  font-size: 1.85rem;
  line-height: 1.3;
  font-weight: 250;
  color: hsl(var(--foreground));
  margin-top: 2em;
  margin-bottom: 0.8em;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
}

@media (max-width: 640px) {
  .reader-prose h2 {
    font-size: 1.45rem;
    line-height: 1.32;
    margin-top: 1.5em;
    margin-bottom: 0.6em;
  }
}

.reader-prose h3 {
  font-family: var(--font-cheltenham);
  font-size: 1.45rem;
  line-height: 1.35;
  font-weight: 350;
  color: hsl(var(--foreground));
  margin-top: 1.7em;
  margin-bottom: 0.6em;
  overflow-wrap: break-word;
}

@media (max-width: 640px) {
  .reader-prose h3 {
    font-size: 1.25rem;
    line-height: 1.35;
  }
}

/* Preserved Cheltenham Blockquote */
.reader-prose blockquote {
  border-left: 2px solid hsl(var(--primary));
  padding-left: 1.25rem;
  font-style: italic;
  font-family: var(--font-cheltenham);
  font-size: 1.25rem;
  line-height: 1.6;
  color: hsl(var(--foreground));
  margin: 1.8em 0;
  overflow-wrap: break-word;
}

@media (max-width: 640px) {
  .reader-prose blockquote {
    padding-left: 0.875rem;
    font-size: 1.125rem;
    line-height: 1.55;
    margin: 1.3em 0;
  }
}

.reader-prose img {
  border-radius: var(--radius-lg);
  margin: 1.8em auto;
  max-width: 100%;
  height: auto;
  display: block;
  border: 1px solid hsl(var(--border));
}

.reader-prose a {
  color: hsl(var(--primary));
  text-decoration: underline;
  text-underline-offset: 3px;
}

.reader-prose ul, .reader-prose ol {
  padding-left: 1.5rem;
  margin: 1.25em 0;
}

.reader-prose li {
  margin-bottom: 0.5em;
}

/* ==========================================================================
   MODAL BOTTOM NAVIGATION BAR (SHADCN BAR PRIMITIVES)
   ========================================================================== */
.modal-bottom-bar {
  width: 100%;
  background-color: hsl(var(--card) / 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid hsl(var(--border));
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.04);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  padding-left: 1rem;
  padding-right: 1rem;
  flex-shrink: 0;
  z-index: 40;
  transition: all 0.2s ease;
}

@media (min-width: 640px) {
  .modal-bottom-bar {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

.modal-bar-inner {
  width: 100%;
  max-width: calc(56rem - 3rem); /* 53rem (848px) - matches home feed card width & read-mode-inner */
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.btn-circle-nav {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.625rem;  /* 42px matching home footer circular button */
  height: 2.625rem; /* 42px */
  border-radius: var(--radius-full); /* Preserved fully rounded */
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  box-sizing: border-box;
}

.btn-circle-nav svg {
  width: 1.125rem;  /* 18px matching home footer icon size */
  height: 1.125rem; /* 18px */
}

.btn-circle-nav:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  border-color: hsl(var(--border));
}

.btn-circle-nav:active {
  transform: scale(0.95);
}

.btn-circle-nav:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.btn-circle-nav.active {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
  border-color: hsl(var(--border));
}

/* Modal Read Eye Button - matching card eye button lightest grey stroke */
#btn-modal-read {
  border-color: var(--color-border-subtle);
}

#btn-modal-read:hover {
  border-color: hsl(var(--border));
}

#btn-modal-read.active {
  border-color: var(--color-border-subtle);
}

/* Segmented Toggle / ToggleGroup */
.segmented-toggle,
.toggle-group {
  display: inline-flex;
  align-items: center;
  height: 2.625rem; /* 42px matching home footer pills */
  background-color: hsl(var(--secondary));
  padding: 0.25rem;
  border-radius: var(--radius-full); /* Preserved fully rounded */
  border: 1px solid hsl(var(--border));
  box-sizing: border-box;
}

.toggle-opt,
.toggle-group-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 0.5rem;
  padding: 0 1rem;
  border-radius: var(--radius-full); /* Preserved fully rounded */
  font-family: var(--font-body);
  font-size: 0.875rem; /* 14px matching home footer pills */
  font-weight: 500;
  line-height: 1;
  border: none;
  background: transparent;
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  white-space: nowrap;
}

.toggle-opt svg,
.toggle-group-item svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.toggle-opt:hover:not(.active),
.toggle-group-item:hover:not(.active) {
  color: hsl(var(--foreground));
}

.toggle-opt:active,
.toggle-group-item:active {
  transform: scale(0.96);
}

.toggle-opt.active,
.toggle-group-item.active {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12); /* matching home footer active pill */
}

/* Mobile Resolution: Keep icons and avoid text in Segmented Toggle */
@media (max-width: 640px) {
  .toggle-opt span,
  .toggle-group-item span {
    display: none;
  }

  .toggle-opt,
  .toggle-group-item {
    width: 2.125rem;
    min-width: 2.125rem;
    padding: 0;
    gap: 0;
  }

  .toggle-opt svg,
  .toggle-group-item svg {
    width: 1.125rem;
    height: 1.125rem;
  }
}

@media (max-width: 440px) {
  .modal-bar-inner {
    gap: 0.375rem;
  }
  .segmented-toggle,
  .toggle-group {
    height: 2.25rem;
    padding: 0.1875rem;
  }
  .toggle-opt,
  .toggle-group-item {
    width: 1.875rem;
    min-width: 1.875rem;
    padding: 0;
    gap: 0;
  }
  .toggle-opt svg,
  .toggle-group-item svg {
    width: 1rem;
    height: 1rem;
  }
  .btn-circle-nav {
    width: 2.25rem;
    height: 2.25rem;
  }
  .btn-circle-nav svg {
    width: 1rem;
    height: 1rem;
  }
}

/* ==========================================================================
   TOAST NOTIFICATION (SHADCN TOAST PRIMITIVE)
   ========================================================================== */
.toast-notice {
  position: fixed;
  bottom: 5rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full); /* Preserved fully rounded pill */
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 100;
}

.toast-notice.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   SHADCN GENERAL SEPARATOR & UTILITIES
   ========================================================================== */
.separator {
  height: 1px;
  width: 100%;
  background-color: hsl(var(--border));
  margin: 1rem 0;
}

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