@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* =========================================================================
     DARK THEME (Default) - Pure Craft & Architectural Contrast
     ========================================================================= */
  /* Layer 0: Canvas Background */
  --bg-canvas: #0b0d13;
  --bg-canvas-subtle: #0f121b;

  /* Layer 1: Structural Surfaces (Header & Sidebar) */
  --bg-surface: #131722;
  --bg-surface-elevated: #181d2b;
  --bg-surface-hover: #1e2436;
  --bg-surface-active: #252d43;

  /* Layer 2: Content Cards (Solid & Crisp Contrast with Canvas!) */
  --bg-card: #161b28;
  --bg-card-hover: #1c2233;
  --bg-card-selected: #18233c;

  /* Inset Inputs & Codeblocks */
  --bg-inset: #0e111a;

  /* Borders: Visible, High-Precision Separation */
  --border-subtle: #202638;
  --border-medium: #2c344d;
  --border-strong: #3d4869;
  --border-focus: #3b82f6;

  /* Typography Contrast (WCAG AA/AAA compliant) */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dim: #475569;
  --text-inverse: #0b0d13;

  /* Primary Brand: Solid, Confident Electric Blue (No AI Rainbow Gradient) */
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-subtle: rgba(59, 130, 246, 0.12);
  --primary-border: rgba(59, 130, 246, 0.35);

  /* Functional Accents */
  --color-amber: #f59e0b;
  --color-amber-bg: rgba(245, 158, 11, 0.12);
  --color-amber-border: rgba(245, 158, 11, 0.28);

  --color-emerald: #10b981;
  --color-emerald-bg: rgba(16, 185, 129, 0.12);
  --color-emerald-border: rgba(16, 185, 129, 0.28);

  --color-rose: #ef4444;
  --color-rose-bg: rgba(239, 68, 68, 0.12);
  --color-rose-border: rgba(239, 68, 68, 0.28);

  --color-sky: #0284c7;
  --color-sky-bg: rgba(2, 132, 199, 0.12);
  --color-sky-border: rgba(2, 132, 199, 0.28);

  /* Shadows: Clean & Deep without fuzzy color bleeding */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 10px 28px -4px rgba(0, 0, 0, 0.55);
  --shadow-float: 0 20px 48px -6px rgba(0, 0, 0, 0.75);

  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-2xl: 22px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 140ms ease-out;
  --transition-normal: 220ms ease-out;

  --header-height: 68px;
  --sidebar-width: 285px;
}

[data-theme="light"] {
  /* =========================================================================
     LIGHT THEME - Studio Editorial & Crisp Paper Surface Contrast
     ========================================================================= */
  /* Layer 0: Cool Neutral Slate Canvas (distinct from pure white cards) */
  --bg-canvas: #edf0f5;
  --bg-canvas-subtle: #e4e8f0;

  /* Layer 1: Structural Surfaces (Header & Sidebar) */
  --bg-surface: #f8fafc;
  --bg-surface-elevated: #ffffff;
  --bg-surface-hover: #eef2f7;
  --bg-surface-active: #e2e8f0;

  /* Layer 2: Content Cards (Pure Solid White popping on #edf0f5 canvas!) */
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --bg-card-selected: #eff6ff;

  /* Inset Inputs & Codeblocks */
  --bg-inset: #f1f4f9;

  /* Borders: Visible, Crisp Gray Separation */
  --border-subtle: #d8dee8;
  --border-medium: #cbd5e1;
  --border-strong: #94a3b8;
  --border-focus: #2563eb;

  /* Typography Contrast */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --text-inverse: #ffffff;

  /* Primary Brand: Deep Confident Blue */
  --primary-500: #2563eb;
  --primary-600: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-subtle: #eff6ff;
  --primary-border: #bfdbfe;

  /* Functional Accents */
  --color-amber: #d97706;
  --color-amber-bg: #fffbeb;
  --color-amber-border: #fde68a;

  --color-emerald: #059669;
  --color-emerald-bg: #ecfdf5;
  --color-emerald-border: #a7f3d0;

  --color-rose: #dc2626;
  --color-rose-bg: #fef2f2;
  --color-rose-border: #fecaca;

  --color-sky: #0284c7;
  --color-sky-bg: #f0f9ff;
  --color-sky-border: #bae6fd;

  /* Shadows: Natural realistic shadows */
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 24px -4px rgba(15, 23, 42, 0.12);
  --shadow-float: 0 20px 40px -6px rgba(15, 23, 42, 0.16);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
/* Anti-FOUC: Disable transitions during initial document load */
.preload,
.preload *,
.preload *::before,
.preload *::after {
  -webkit-transition: none !important;
  -moz-transition: none !important;
  -ms-transition: none !important;
  -o-transition: none !important;
  transition: none !important;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  height: 100%;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Clean up: No AI slop glowing background blobs */

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
  background: none;
}

button {
  cursor: pointer;
  user-select: none;
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast);
}

button:active {
  transform: scale(0.98);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

/* ==========================================================================
   Header Navbar
   ========================================================================== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  gap: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-shrink: 0;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.brand-icon svg {
  width: 20px;
  height: 20px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.brand-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  background: var(--primary-subtle);
  color: var(--primary-500);
  border: 1px solid var(--primary-border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Global Search Bar */
.search-container {
  flex: 1;
  max-width: 520px;
  position: relative;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-inset);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 0.5rem 0.75rem 0.5rem 2.4rem;
  transition: all var(--transition-fast);
}

.search-input-wrapper:focus-within {
  border-color: var(--border-focus);
  background: var(--bg-surface-elevated);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.search-icon-left {
  position: absolute;
  left: 0.85rem;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.search-input {
  flex: 1;
  min-width: 0;
  width: 100%;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 500;
  background: transparent;
  border: none;
  outline: none;
}

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

.search-shortcut-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-surface);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  user-select: none;
  letter-spacing: 0.04em;
  line-height: 1;
}

.search-clear-btn {
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  padding: 0.2rem;
  border-radius: var(--radius-full);
}

.search-clear-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

/* Header Action Buttons */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-size: 0.86rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

/* Primary Button: Solid, Crisp, High-Contrast */
.btn-primary {
  background: var(--primary-600);
  color: #ffffff;
  border-color: var(--primary-600);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.btn-secondary:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-strong);
}

.btn-danger {
  background: var(--color-rose);
  color: #ffffff;
  border-color: var(--color-rose);
  box-shadow: 0 1px 3px rgba(220, 38, 38, 0.25);
}

.btn-danger:hover {
  background: #b91c1c;
  border-color: #b91c1c;
}

.btn-warning {
  background: var(--color-amber);
  color: #ffffff;
  border-color: var(--color-amber);
}

.btn-warning:hover {
  background: #b45309;
  border-color: #b45309;
}

.btn-ghost {
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

.btn-icon-only {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon-only:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
  border-color: var(--border-strong);
}

.mobile-nav-toggle {
  display: none;
}

/* ==========================================================================
   Main App Layout: Sidebar + Content
   ========================================================================== */
.app-container {
  display: flex;
  min-height: calc(100vh - var(--header-height));
  position: relative;
}

/* ==========================================================================
   Sidebar Navigation
   ========================================================================== */
.app-sidebar {
  width: var(--sidebar-width);
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
  overflow-y: auto;
  padding: 1.15rem 0.85rem;
  gap: 1.4rem;
  box-shadow: 1px 0 3px rgba(0, 0, 0, 0.02);
}

.sidebar-section {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.sidebar-heading {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0.25rem 0.65rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.86rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
}

.sidebar-nav-item:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

.sidebar-nav-item.active {
  color: var(--primary-500);
  background: var(--primary-subtle);
  border-color: var(--primary-border);
  font-weight: 700;
}

.nav-item-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.nav-item-left svg {
  width: 17px;
  height: 17px;
}

.nav-badge {
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.sidebar-nav-item.active .nav-badge {
  background: var(--primary-500);
  color: #ffffff;
  border-color: var(--primary-500);
}

/* Sidebar Developer Footprint */
.sidebar-footprint {
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.76rem;
}

.footprint-info {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-muted);
  font-weight: 500;
}

.footprint-author {
  color: var(--primary-500);
  font-weight: 700;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footprint-author:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.footprint-github-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.footprint-github-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

/* Modal Stats Footprint Note */
.stats-footprint-note {
  margin-top: 1.25rem;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.stats-footprint-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--primary-500);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-decoration: none;
  padding: 0.2rem 0.5rem;
  background: var(--primary-subtle);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.stats-footprint-link:hover {
  background: var(--primary-500);
  color: #ffffff;
  border-color: var(--primary-500);
}

/* Folder Tree in Sidebar */
.folder-tree-container {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  max-height: 360px;
  overflow-y: auto;
  padding-right: 0.2rem;
}

.tree-node {
  display: flex;
  flex-direction: column;
}

.tree-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.38rem 0.55rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  user-select: none;
}

.tree-row:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

.tree-row.active {
  color: var(--primary-500);
  background: var(--primary-subtle);
  border-color: var(--primary-border);
  font-weight: 700;
}

.tree-row-left {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-toggle-icon {
  width: 14px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.tree-toggle-icon.expanded {
  transform: rotate(90deg);
}

.tree-folder-icon {
  width: 16px;
  height: 16px;
  color: var(--color-amber);
}

.tree-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-count {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--bg-inset);
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  margin-left: 0.4rem;
}

.tree-children {
  padding-left: 0.95rem;
  border-left: 1px solid var(--border-subtle);
  margin-left: 0.75rem;
  display: none;
}

.tree-children.expanded {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

/* Domain Chips */
.domain-chips-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.2rem 0;
}

.domain-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.domain-chip:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: var(--bg-surface-hover);
}

.domain-chip.active {
  background: var(--primary-500);
  color: #ffffff;
  border-color: var(--primary-500);
}

.chip-count {
  font-size: 0.68rem;
  opacity: 0.85;
  font-family: var(--font-mono);
}

/* Popular Tag Pills */
.tag-pills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.tag-pill {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  padding: 0.18rem 0.5rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag-pill:hover {
  color: var(--primary-500);
  border-color: var(--primary-border);
}

.tag-pill.active {
  background: var(--primary-subtle);
  color: var(--primary-500);
  border-color: var(--primary-border);
  font-weight: 600;
}

/* ==========================================================================
   Main Viewport Area
   ========================================================================== */
.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 1.5rem 2rem 5rem 2rem;
  gap: 1.25rem;
}

/* Breadcrumb & Filter Bar */
.viewport-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-subtle);
}

.breadcrumb-area {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.breadcrumb-trail {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.breadcrumb-item {
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.breadcrumb-item:hover {
  color: var(--text-primary);
}

.breadcrumb-separator {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.breadcrumb-item.active {
  color: var(--text-primary);
  font-weight: 700;
  cursor: default;
}

.active-filter-indicators {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  font-size: 0.84rem;
  font-weight: 600;
}

.filter-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.74rem;
  background: var(--primary-subtle);
  border: 1px solid var(--primary-border);
  color: var(--primary-500);
  padding: 0.18rem 0.5rem;
  border-radius: var(--radius-full);
}

.filter-badge-pill button {
  color: var(--primary-500);
  display: flex;
  align-items: center;
}

.filter-badge-pill button:hover {
  color: var(--color-rose);
}

.btn-reset-filters {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--color-rose);
  background: var(--color-rose-bg);
  border: 1px solid var(--color-rose-border);
  padding: 0.18rem 0.6rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-reset-filters:hover {
  background: var(--color-rose);
  color: #ffffff;
  border-color: var(--color-rose);
  box-shadow: 0 1px 4px rgba(239, 68, 68, 0.25);
}

/* Controls Toolbar */
.controls-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.85rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 0.6rem 0.95rem;
  box-shadow: var(--shadow-sm);
}

.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.select-all-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.custom-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 17px;
  height: 17px;
  border-radius: 4px;
  border: 1.5px solid var(--border-medium);
  background: var(--bg-inset);
  cursor: pointer;
  display: inline-grid;
  place-content: center;
  transition: all var(--transition-fast);
}

.custom-checkbox::before {
  content: "";
  width: 9px;
  height: 9px;
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
  transform: scale(0);
  transform-origin: center;
  transition: transform var(--transition-fast);
  background-color: white;
}

.custom-checkbox:checked {
  background-color: var(--primary-500);
  border-color: var(--primary-500);
}

.custom-checkbox:checked::before {
  transform: scale(1);
}

.custom-checkbox:indeterminate {
  background-color: var(--primary-500);
  border-color: var(--primary-500);
}

.custom-checkbox:indeterminate::before {
  clip-path: polygon(0 40%, 100% 40%, 100% 60%, 0 60%);
  transform: scale(1);
}

.sort-select-wrapper {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.sort-dropdown {
  background: var(--bg-inset);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-size: 0.82rem;
  padding: 0.32rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
}

.sort-dropdown:focus {
  border-color: var(--border-focus);
}

/* View Switcher Segmented Control */
.view-mode-toggle {
  display: flex;
  align-items: center;
  background: var(--bg-inset);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.15rem;
  gap: 0.15rem;
}

.view-mode-btn {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.view-mode-btn:hover {
  color: var(--text-primary);
}

.view-mode-btn.active {
  background: var(--bg-surface-elevated);
  color: var(--primary-500);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.item-count-indicator {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ==========================================================================
   Bookmarks Grid & List Layouts
   ========================================================================== */
.bookmarks-container {
  display: grid;
  gap: 1rem;
  width: 100%;
}

/* Grid View (Default) */
.bookmarks-container.view-grid {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

/* List View */
.bookmarks-container.view-list {
  grid-template-columns: 1fr;
  gap: 0.6rem;
}

/* Compact Table View */
.bookmarks-container.view-compact {
  grid-template-columns: 1fr;
  gap: 0.3rem;
}

/* ==========================================================================
   Bookmark Card Element: HIGH SURFACE CONTRAST
   ========================================================================== */
.bookmark-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.bookmark-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-md);
}

.bookmark-card.selected {
  border-color: var(--primary-500);
  background: var(--bg-card-selected);
  box-shadow: 0 0 0 1.5px var(--primary-500), var(--shadow-md);
}

/* ==========================================================================
   Card Thumbnail Preview & Graceful Placeholder
   ========================================================================== */
.card-thumb-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-inset);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.card-thumb-img.loaded {
  opacity: 1;
}

.bookmark-card:hover .card-thumb-img {
  transform: scale(1.03);
}

/* Card Thumbnail Placeholder */
.card-thumb-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--bg-inset) 0%, var(--bg-surface-elevated) 100%);
  color: var(--text-muted);
  gap: 0.5rem;
  padding: 0.85rem;
  text-align: center;
  user-select: none;
}

.placeholder-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-500);
  box-shadow: var(--shadow-sm);
}

.placeholder-icon-wrap svg {
  width: 22px;
  height: 22px;
}

.placeholder-domain {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-xs);
  max-width: 90%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Floating Elements on Thumbnail */
.card-thumb-overlay-top {
  position: absolute;
  top: 0.55rem;
  left: 0.55rem;
  right: 0.55rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 2;
  pointer-events: none;
}

.card-thumb-overlay-top .custom-checkbox,
.card-thumb-overlay-top .btn-star-fav {
  pointer-events: auto;
}

.card-thumb-overlay-top .custom-checkbox {
  background: var(--bg-surface);
  border-color: var(--border-strong);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.card-thumb-overlay-top .custom-checkbox:hover {
  border-color: var(--primary-500);
  background: var(--bg-surface-elevated);
}

.card-thumb-overlay-top .custom-checkbox:checked,
.bookmark-card.selected .card-thumb-overlay-top .custom-checkbox {
  background-color: var(--primary-500) !important;
  border-color: var(--primary-500) !important;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.35);
  opacity: 1 !important;
}

.card-thumb-overlay-top .custom-checkbox:checked::before,
.bookmark-card.selected .card-thumb-overlay-top .custom-checkbox::before {
  transform: scale(1) !important;
  background-color: #ffffff !important;
}

.card-thumb-overlay-top .btn-star-fav {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

.card-thumb-overlay-bottom {
  position: absolute;
  bottom: 0.55rem;
  left: 0.55rem;
  right: 0.55rem;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.4rem;
  z-index: 2;
  pointer-events: none;
}

.thumb-domain-pill {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  padding: 0.18rem 0.55rem;
  border-radius: var(--radius-full);
  max-width: 170px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.thumb-domain-favicon {
  width: 14px;
  height: 14px;
  object-fit: contain;
  flex-shrink: 0;
}

.thumb-platform-badge {
  font-size: 0.65rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
  background: var(--bg-surface);
  color: var(--primary-500);
  border: 1px solid var(--border-medium);
  letter-spacing: 0.04em;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.card-list-select-col {
  display: none;
}

/* Top bar inside card */
.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
}

.card-header-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
}

.card-checkbox {
  opacity: 0.45;
  transition: opacity var(--transition-fast);
}

.bookmark-card:hover .card-checkbox,
.card-checkbox:checked,
.bookmark-card.selected .card-checkbox {
  opacity: 1;
}

.card-favicon-wrapper {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border-medium);
  overflow: hidden;
}

.card-favicon {
  width: 16px;
  height: 16px;
  object-fit: contain;
}

.card-favicon-fallback {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: #ffffff;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-transform: uppercase;
}

.card-domain-badge {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-inset);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 140px;
}

.card-header-right {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.btn-star-fav {
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-star-fav:hover {
  color: var(--color-amber);
  background: var(--color-amber-bg);
}

.btn-star-fav.active {
  color: var(--color-amber);
}

.btn-star-fav.active svg {
  fill: var(--color-amber);
}

/* Card Body */
.card-body {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.card-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.42;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

.card-title a {
  display: inline;
}

.card-title a:hover {
  color: var(--primary-500);
}

.card-notes {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Card Metadata & Tags */
.card-meta-row {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: auto;
}

.card-folder-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  color: var(--text-secondary);
  background: var(--bg-inset);
  padding: 0.18rem 0.5rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.card-folder-badge:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.card-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.card-tag {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--primary-500);
  background: var(--primary-subtle);
  border: 1px solid var(--primary-border);
  padding: 0.12rem 0.4rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.card-tag:hover {
  background: var(--primary-500);
  color: #ffffff;
}

/* Card Actions Footer */
.card-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.6rem;
  border-top: 1px solid var(--border-subtle);
  margin-top: 0.2rem;
}

.card-action-btn-group {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.card-action-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  background: transparent;
  transition: all var(--transition-fast);
  position: relative;
}

.card-action-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

.card-action-btn.delete-btn:hover {
  color: var(--color-rose);
  background: var(--color-rose-bg);
}

.card-open-link {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--primary-500);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--primary-subtle);
  border: 1px solid var(--primary-border);
  transition: all var(--transition-fast);
}

.card-open-link:hover {
  background: var(--primary-500);
  color: #ffffff;
  border-color: var(--primary-500);
}

/* List View Variant (Showcase-inspired modern & proportional design) */
.bookmarks-container.view-list .bookmark-card {
  flex-direction: row;
  align-items: center;
  padding: 0.6rem 0.85rem;
  gap: 0.85rem;
}

.bookmarks-container.view-list .card-list-select-col {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  order: 1;
}

.bookmarks-container.view-list .card-thumb-container {
  width: 130px;
  height: 78px;
  aspect-ratio: auto;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  order: 2;
}

.bookmarks-container.view-list .card-thumb-placeholder {
  padding: 0.35rem;
}

.bookmarks-container.view-list .placeholder-icon-wrap {
  width: 32px;
  height: 32px;
}

.bookmarks-container.view-list .placeholder-icon-wrap svg {
  width: 16px;
  height: 16px;
}

.bookmarks-container.view-list .placeholder-domain {
  font-size: 0.68rem;
  display: block;
}

.bookmarks-container.view-list .card-thumb-overlay-top {
  display: none;
}

.bookmarks-container.view-list .card-thumb-overlay-bottom {
  display: flex;
}

.bookmarks-container.view-list .card-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  order: 3;
}

.bookmarks-container.view-list .card-title {
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.35;
  -webkit-line-clamp: 1;
  line-clamp: 1;
}

.bookmarks-container.view-list .card-notes {
  font-size: 0.76rem;
  -webkit-line-clamp: 1;
  line-clamp: 1;
}

.bookmarks-container.view-list .card-meta-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0;
}

.bookmarks-container.view-list .card-actions-row {
  padding-top: 0;
  border-top: none;
  margin-top: 0;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  order: 4;
}

/* Compact Table View Variant */
.bookmarks-container.view-compact .bookmark-card {
  flex-direction: row;
  align-items: center;
  padding: 0.45rem 0.85rem;
  gap: 0.75rem;
  border-radius: var(--radius-sm);
}

.bookmarks-container.view-compact .card-list-select-col {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.bookmarks-container.view-compact .card-thumb-container {
  display: none;
}

.bookmarks-container.view-compact .card-body {
  flex: 1;
  min-width: 0;
}

.bookmarks-container.view-compact .card-title {
  font-size: 0.84rem;
  -webkit-line-clamp: 1;
  line-clamp: 1;
}

.bookmarks-container.view-compact .card-meta-row {
  display: none;
}

.bookmarks-container.view-compact .card-actions-row {
  border-top: none;
  padding: 0;
  margin: 0;
}

/* ==========================================================================
   Floating Bulk Action Bar (Dock)
   ========================================================================== */
.bulk-dock {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 0.6rem 1.15rem;
  display: flex;
  align-items: center;
  gap: 1.15rem;
  box-shadow: var(--shadow-float);
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-normal);
}

.bulk-dock.active {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.bulk-dock-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-primary);
}

.bulk-count-badge {
  background: var(--primary-500);
  color: #ffffff;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-family: var(--font-mono);
}

.bulk-actions-group {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

/* ==========================================================================
   Empty State
   ========================================================================== */
.empty-state-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  gap: 1.15rem;
  background: var(--bg-surface);
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-xl);
  max-width: 640px;
  margin: 2rem auto;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--primary-subtle);
  border: 1px solid var(--primary-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-500);
}

.empty-state-icon svg {
  width: 32px;
  height: 32px;
}

.empty-state-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.empty-state-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  max-width: 440px;
  line-height: 1.5;
}

.empty-state-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.4rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ==========================================================================
   Modals & Drawers
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 6, 12, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 580px;
  box-shadow: var(--shadow-float);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.96);
  transition: transform var(--transition-fast);
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-header {
  padding: 1.15rem 1.4rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.modal-title-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--primary-subtle);
  border: 1px solid var(--primary-border);
  color: var(--primary-500);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

.modal-body {
  padding: 1.4rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.modal-footer {
  padding: 1rem 1.4rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-canvas-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem;
}

/* Tabs inside Modal */
.modal-tabs {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 0.4rem;
}

.modal-tab-btn {
  padding: 0.5rem 0.85rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-tab-btn:hover {
  color: var(--text-primary);
}

.modal-tab-btn.active {
  color: var(--primary-500);
  border-bottom-color: var(--primary-500);
}

/* Drag and Drop Zone */
.dropzone-container {
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 2.2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.8rem;
  background: var(--bg-inset);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dropzone-container.dragover {
  border-color: var(--primary-500);
  background: var(--primary-subtle);
}

.dropzone-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--primary-subtle);
  border: 1px solid var(--primary-border);
  color: var(--primary-500);
  display: flex;
  align-items: center;
  justify-content: center;
}

.dropzone-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.dropzone-hint {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.format-badges-list {
  display: flex;
  gap: 0.35rem;
  margin-top: 0.2rem;
}

.format-badge {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
}

/* Live File Analysis Card */
.parse-preview-card {
  background: var(--bg-inset);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.preview-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.preview-stat-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.6rem;
  text-align: center;
}

.preview-stat-value {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary-500);
  font-family: var(--font-mono);
}

.preview-stat-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

/* Form Groups in Modal */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.form-input, .form-textarea, .form-select, .form-control {
  box-sizing: border-box;
  width: 100%;
  background: var(--bg-inset);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 0.62rem 0.85rem;
  color: var(--text-primary);
  font-size: 0.86rem;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-input, .form-select, input.form-control, select.form-control {
  height: 42px;
}

.form-input:hover, .form-textarea:hover, .form-select:hover, .form-control:hover {
  border-color: var(--border-strong);
}

.form-input:focus, .form-textarea:focus, .form-select:focus, .form-control:focus {
  border-color: var(--primary-500);
  background: var(--bg-surface);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.form-input::placeholder, .form-textarea::placeholder, .form-control::placeholder {
  color: var(--text-muted);
  opacity: 0.8;
  font-size: 0.83rem;
}

.form-select, select.form-control {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 2.2rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%2394a3b8' viewBox='0 0 24 24'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}

.form-select option, select.form-control option {
  background: var(--bg-surface);
  color: var(--text-primary);
  padding: 0.5rem;
}

.form-textarea {
  min-height: 80px;
  resize: vertical;
}

.share-form-grid {
  display: grid;
  grid-template-columns: 1.65fr 1fr;
  gap: 0.75rem;
}

@media (max-width: 580px) {
  .share-form-grid {
    grid-template-columns: 1fr;
  }
}

/* Radio Choice Card */
.radio-cards-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.radio-card-label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.8rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background: var(--bg-inset);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.radio-card-label:hover {
  border-color: var(--border-strong);
}

.radio-card-label:has(input:checked) {
  border-color: var(--primary-500);
  background: var(--primary-subtle);
}

.radio-card-label.disabled {
  opacity: 0.42;
  cursor: not-allowed;
  pointer-events: none;
  background: var(--bg-surface);
  border-color: var(--border-subtle);
}

.radio-card-featured {
  grid-column: 1 / -1;
  border-color: rgba(59, 130, 246, 0.3);
  background: rgba(59, 130, 246, 0.04);
}

.radio-card-featured:hover {
  border-color: var(--primary-500);
}

.radio-card-featured:has(input:checked) {
  border-color: var(--primary-500);
  background: var(--primary-subtle);
  box-shadow: 0 0 0 1px var(--primary-500);
}

.radio-card-text {
  display: flex;
  flex-direction: column;
}

.radio-card-title {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-primary);
}

.radio-card-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Analytics Stats Grid */
.stats-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

.metric-card {
  background: var(--bg-inset);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.metric-card-title {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.metric-card-value {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.metric-progress-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.4rem;
}

.metric-bar-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.metric-bar-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.metric-bar-track {
  width: 100%;
  height: 6px;
  background: var(--bg-inset);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.metric-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--primary-500);
}

/* ==========================================================================
   Custom Confirmation Dialog Modal
   ========================================================================== */
.modal-confirm-overlay {
  z-index: 250; /* Above all other modals and headers */
}

.modal-confirm-card {
  max-width: 440px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-float);
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
}

.modal-confirm-body {
  padding: 1.5rem 1.5rem 1.25rem;
  display: flex;
  gap: 1.15rem;
  align-items: flex-start;
}

.modal-confirm-icon-wrap {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.modal-confirm-icon-wrap.type-danger {
  background: var(--color-rose-bg);
  border: 1px solid var(--color-rose-border);
  color: var(--color-rose);
}

.modal-confirm-icon-wrap.type-warning {
  background: var(--color-amber-bg);
  border: 1px solid var(--color-amber-border);
  color: var(--color-amber);
}

.modal-confirm-icon-wrap.type-primary,
.modal-confirm-icon-wrap.type-info {
  background: var(--primary-subtle);
  border: 1px solid var(--primary-border);
  color: var(--primary-500);
}

.modal-confirm-icon-wrap svg {
  width: 24px;
  height: 24px;
}

.modal-confirm-content {
  flex: 1;
  min-width: 0;
}

.modal-confirm-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  line-height: 1.35;
}

.modal-confirm-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 0.5rem;
}

.modal-confirm-preview-box {
  background: var(--bg-inset);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  margin-top: 0.65rem;
}

.modal-confirm-preview-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.modal-confirm-preview-url {
  font-size: 0.74rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 0.15rem;
}

.modal-confirm-footer {
  padding: 0.9rem 1.4rem;
  background: var(--bg-canvas-subtle);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem;
}

/* ==========================================================================
   Toast Notification System
/* ==========================================================================
   Toast Notifications Viewport & Item (Proportional & Modern Floating Toast)
   ========================================================================== */
.toast-viewport {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
  max-width: min(420px, calc(100vw - 2.5rem));
}

.toast {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: color-mix(in srgb, var(--bg-surface-elevated, var(--bg-surface)) 92%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  padding: 0.55rem 0.95rem;
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.4), 0 2px 6px -1px rgba(0, 0, 0, 0.25);
  font-size: 0.835rem;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.01em;
  animation: toastSlideIn 240ms cubic-bezier(0.16, 1, 0.3, 1);
  width: fit-content;
  max-width: 100%;
}

[data-theme="light"] .toast {
  background: color-mix(in srgb, #ffffff 94%, transparent);
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 8px 24px -4px rgba(15, 23, 42, 0.12), 0 2px 6px -1px rgba(15, 23, 42, 0.06);
}

.toast-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  flex-shrink: 0;
}

.toast-icon-success,
.toast.toast-success .toast-icon {
  color: var(--color-emerald, #10b981);
  background: rgba(16, 185, 129, 0.12);
}

.toast-icon-error,
.toast.toast-error .toast-icon {
  color: var(--color-rose, #ef4444);
  background: rgba(239, 68, 68, 0.12);
}

.toast-icon-info,
.toast.toast-info .toast-icon {
  color: var(--primary-500, #3b82f6);
  background: rgba(59, 130, 246, 0.12);
}

.toast-text {
  flex: 1;
}

@keyframes toastSlideIn {
  from {
    transform: translateY(10px) scale(0.96);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

@media (max-width: 640px) {
  .toast-viewport {
    right: 50%;
    transform: translateX(50%);
    bottom: 1.25rem;
    align-items: center;
  }
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 255px;
  }
  .app-main {
    padding: 1.25rem 1.25rem 5rem 1.25rem;
  }
  .stats-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .app-header {
    padding: 0 1rem;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .app-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    z-index: 45;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-float);
    background: var(--bg-surface);
  }

  .app-sidebar.mobile-open {
    transform: translateX(0);
  }

  .search-container {
    max-width: none;
  }

  .brand-subtitle {
    display: none;
  }

  .bookmarks-container.view-grid {
    grid-template-columns: 1fr;
  }

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