/* Modern Tailwind-compatible Responsive Mobile-First Stylesheet for OpenTax */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #059669;
  --accent-light: #d1fae5;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  --border-color: #e2e8f0;
  --border-subtle: #cbd5e1;
  --ring-color: rgba(37, 99, 235, 0.2);
}

html.dark,
[data-theme="dark"] {
  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: rgba(59, 130, 246, 0.2);
  --accent: #10b981;
  --accent-light: rgba(16, 185, 129, 0.2);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --bg-page: #090d16;
  --bg-card: #111827;
  --bg-subtle: #1e293b;
  --border-color: #1f2937;
  --border-subtle: #374151;
  --ring-color: rgba(59, 130, 246, 0.35);
}

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

[x-cloak] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

main {
  flex: 1;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--primary-hover);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (max-width: 640px) {
  .container {
    padding: 0 1rem;
  }
}

/* Header & Navbar */
.navbar {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

@media (max-width: 768px) {
  .nav-container {
    height: 4rem;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: #1e293b;
  text-decoration: none;
  letter-spacing: -0.025em;
}

.brand-icon {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: white;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.6rem;
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .brand {
    font-size: 1.2rem;
  }
  .brand-icon {
    width: 2rem;
    height: 2rem;
    font-size: 1rem;
  }
}

/* Desktop Navigation */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none !important;
  }
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: #475569;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  transition: all 0.15s ease;
}

.nav-link:hover {
  color: var(--primary);
  background-color: #f1f5f9;
}

/* Mobile Actions & Hamburger Button */
.mobile-actions {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

@media (max-width: 768px) {
  .mobile-actions {
    display: flex;
  }
}

.mobile-toggle-btn {
  background: #f1f5f9;
  border: 1px solid var(--border-color);
  color: #334155;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background-color 0.15s;
}

.mobile-toggle-btn:hover {
  background: #e2e8f0;
}

.mobile-drawer {
  background: white;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  padding: 0.75rem 0 1.25rem;
}

.mobile-drawer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.mobile-nav-link {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: #334155;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  transition: background-color 0.15s;
}

.mobile-nav-link:hover, .mobile-nav-link:active {
  background-color: #eff6ff;
  color: var(--primary);
}

/* Language Selector */
.lang-picker {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: #f1f5f9;
  border: 1px solid var(--border-color);
  padding: 0.45rem 0.85rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #334155;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.lang-btn:hover {
  background: #e2e8f0;
}

.mobile-lang-btn {
  padding: 0.45rem 0.65rem;
}

.mobile-lang-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: #1e293b;
}

.lang-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.16), 0 4px 10px rgba(0, 0, 0, 0.08);
  width: 330px;
  max-height: 420px;
  overflow-y: auto;
  padding: 0.5rem;
  z-index: 1000;
  overscroll-behavior: contain;
}

.mobile-lang-dropdown {
  width: 290px;
  right: -0.5rem;
}

.lang-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.3rem;
}

@media (max-width: 360px) {
  .lang-grid {
    grid-template-columns: 1fr;
  }
}

.lang-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.55rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  color: #334155;
  transition: all 0.15s ease;
  text-decoration: none;
  border: 1px solid transparent;
}

.lang-item:hover {
  background-color: #f1f5f9;
  border-color: rgba(0, 0, 0, 0.05);
  color: var(--primary);
}

.lang-item.active {
  background-color: var(--primary-light);
  border-color: rgba(37, 99, 235, 0.2);
  color: var(--primary);
  font-weight: 600;
}

.lang-flag {
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
}

.lang-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.2;
}

.lang-native {
  font-weight: 600;
  font-size: 0.78rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lang-eng {
  font-size: 0.6875rem;
  color: #64748b;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Theme Switcher */
.theme-picker {
  position: relative;
}

.theme-btn {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 0.45rem 0.85rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

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

.theme-icon-display {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.mobile-theme-btn {
  padding: 0.45rem 0.65rem;
  width: 2.5rem;
  height: 2.5rem;
  justify-content: center;
}

.theme-search-style-dropdown {
  min-width: 320px;
  max-width: 380px;
  right: 0;
  left: auto;
  padding: 0;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.85rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  z-index: 100;
}

@media (max-width: 640px) {
  .theme-search-style-dropdown {
    min-width: 290px;
    max-width: calc(100vw - 2rem);
    right: -1rem;
  }
}

.theme-dropdown-row {
  width: 100%;
  border-left: none;
  border-right: none;
  border-top: none;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.15rem;
  transition: background-color 0.15s ease;
  gap: 0.75rem;
}

.theme-dropdown-row:last-child {
  border-bottom: none;
}

.theme-dropdown-row:hover,
.theme-dropdown-row:active {
  background-color: var(--bg-subtle);
}

.theme-dropdown-row.active {
  background-color: var(--primary-light);
}

.res-badge-light {
  background: #fef3c7;
  color: #b45309;
  border: 1px solid #fde68a;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.res-badge-dark {
  background: #1e1b4b;
  color: #a5b4fc;
  border: 1px solid #3730a3;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.res-badge-system {
  background: #eff6ff;
  color: #2563eb;
  border: 1px solid #bfdbfe;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.theme-active-badge {
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.25rem 0.6rem;
  border-radius: 0.4rem;
  background: #ecfdf5;
  color: #059669;
  border: 1px solid #a7f3d0;
  white-space: nowrap;
}

.theme-inactive-pill {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.55rem;
  border-radius: 0.35rem;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.theme-dropdown-row:hover .theme-inactive-pill {
  background: var(--border-color);
  color: var(--text-main);
}

/* Mobile Drawer Theme Segmented Bar */
.mobile-theme-bar {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-color);
}

.mobile-theme-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  padding-left: 0.25rem;
}

.theme-segmented-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 0.6rem;
  padding: 0.25rem;
  gap: 0.25rem;
}

.theme-segment-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 0.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-radius: 0.45rem;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.theme-segment-btn.active {
  background: var(--bg-card);
  color: var(--primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  font-weight: 700;
}

/* Hero Section */
.hero {
  padding: 3.75rem 0 2.75rem;
  text-align: center;
  background: radial-gradient(circle at 50% 0%, #eff6ff 0%, #f8fafc 75%);
  border-bottom: 1px solid var(--border-color);
}

@media (max-width: 640px) {
  .hero {
    padding: 2.25rem 0 1.75rem;
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1d4ed8;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(1.65rem, 5.5vw, 2.75rem);
  font-weight: 900;
  color: #0f172a;
  letter-spacing: -0.03em;
  line-height: 1.2;
  max-width: 800px;
  margin: 0 auto 1rem;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 2.8vw, 1.15rem);
  color: #64748b;
  max-width: 650px;
  margin: 0 auto 2.25rem;
  line-height: 1.5;
}

@media (max-width: 640px) {
  .hero-subtitle {
    margin-bottom: 1.5rem;
  }
}

/* Search Bar & Autocomplete */
.search-wrapper {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  width: 100%;
}

.search-box {
  display: flex;
  align-items: center;
  background: white;
  border: 2px solid #cbd5e1;
  border-radius: 0.85rem;
  padding: 0.35rem 0.5rem 0.35rem 1.25rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
  transition: all 0.2s ease;
  width: 100%;
}

@media (max-width: 640px) {
  .search-box {
    padding: 0.25rem 0.35rem 0.25rem 0.75rem;
  }
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--ring-color), 0 10px 25px -5px rgba(0, 0, 0, 0.08);
}

.search-icon {
  color: #94a3b8;
  margin-right: 0.65rem;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .search-icon {
    margin-right: 0.4rem;
    width: 18px;
    height: 18px;
  }
}

.search-input {
  width: 100%;
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  font-size: 1.05rem;
  color: #1e293b;
  background: transparent;
  padding: 0.35rem 0;
}

@media (max-width: 640px) {
  .search-input {
    font-size: 0.925rem;
  }
}

.search-input::placeholder {
  color: #94a3b8;
  font-size: 0.95rem;
}

@media (max-width: 640px) {
  .search-input::placeholder {
    font-size: 0.825rem;
  }
}

.geo-btn {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  color: #475569;
  padding: 0.55rem 0.85rem;
  border-radius: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.geo-btn:hover {
  background: #e2e8f0;
  color: #1e293b;
}

@media (max-width: 640px) {
  .geo-btn {
    padding: 0.5rem 0.65rem;
  }
  .geo-btn-label {
    display: none;
  }
}

.search-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  max-height: 380px;
  overflow-y: auto;
  z-index: 80;
  text-align: left;
}

.search-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid #f1f5f9;
  text-decoration: none;
  transition: background-color 0.15s ease;
  gap: 0.75rem;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover, .search-result-item:active {
  background-color: #f8fafc;
}

.res-badge {
  display: inline-block;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.15rem 0.45rem;
  border-radius: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  white-space: nowrap;
}

.res-badge-zip {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
  font-family: monospace;
}

.res-badge-city {
  background: #f0fdf4;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.res-badge-state {
  background: #faf5ff;
  color: #7e22ce;
  border: 1px solid #e9d5ff;
}

.res-badge-neutral {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #e2e8f0;
}

.res-badge-multiple {
  background: #fffbeb;
  color: #b45309;
  border: 1px solid #fde68a;
}

.calc-range-box {
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
  padding: 0.75rem 0.85rem;
  border-radius: 0.5rem;
  margin: 0.5rem 0;
}

.calc-rep-tax-row {
  background: rgba(37, 99, 235, 0.05);
  padding: 0.65rem 0.5rem;
  border-radius: 0.35rem;
  margin-top: 0.5rem;
  border: none;
}

.calc-clear-btn {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  cursor: pointer;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.calc-clear-btn:hover {
  background-color: #fee2e2;
  color: #ef4444;
  border-color: #fca5a5;
}

.res-zip {
  display: inline-block;
  background: #eff6ff;
  color: #1d4ed8;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.2rem 0.55rem;
  border-radius: 0.35rem;
  margin-right: 0.5rem;
  font-family: monospace;
}

.res-title {
  font-weight: 600;
  color: #1e293b;
  font-size: 0.95rem;
}

.res-sub {
  font-size: 0.8rem;
  color: #64748b;
  margin-top: 0.15rem;
}

.res-rate {
  font-weight: 800;
  font-size: 1.05rem;
  color: #059669;
  background: #ecfdf5;
  padding: 0.3rem 0.65rem;
  border-radius: 0.5rem;
  border: 1px solid #a7f3d0;
  white-space: nowrap;
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .res-rate {
    font-size: 0.9rem;
    padding: 0.2rem 0.45rem;
  }
}

/* States A-Z Directory & Filter Toolbar */
.states-filter-toolbar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.25rem;
  margin-bottom: 2rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.04);
}

.states-search-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.state-filter-search {
  flex: 1;
  min-width: 260px;
  position: relative;
  display: flex;
  align-items: center;
}

.state-filter-input {
  width: 100%;
  padding: 0.65rem 2.5rem 0.65rem 2.5rem;
  background: var(--bg-page);
  border: 1.5px solid var(--border-color);
  border-radius: 0.6rem;
  font-size: 0.95rem;
  color: var(--text-main);
  outline: none;
  transition: all 0.15s ease;
}

.state-filter-input:focus {
  border-color: var(--primary);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px var(--ring-color);
}

.state-search-icon {
  position: absolute;
  left: 0.75rem;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.state-search-clear {
  position: absolute;
  right: 0.75rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.15s ease;
}

.state-search-clear:hover {
  background: #fee2e2;
  color: #ef4444;
  border-color: #fca5a5;
}

.az-filter-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.az-filter-wrapper::-webkit-scrollbar {
  display: none;
}

.az-filter-bar {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: nowrap;
  width: 100%;
}

.az-letter-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 34px;
  padding: 0 0.5rem;
  border-radius: 0.45rem;
  border: 1px solid var(--border-color);
  background: var(--bg-page);
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  white-space: nowrap;
  flex: 1;
  text-align: center;
}

.az-letter-btn:hover:not(.disabled) {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.az-letter-btn.active {
  background: var(--primary) !important;
  color: #ffffff !important;
  border-color: var(--primary) !important;
  box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.3);
}

.az-letter-btn.disabled {
  opacity: 0.35;
  cursor: not-allowed;
  background: var(--bg-subtle);
  border-color: transparent;
  color: var(--text-muted);
}

.states-count-badge {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.state-empty-card {
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: 1rem;
  margin: 1.5rem 0;
}

/* Cards & Layout */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
}

@media (max-width: 640px) {
  .card {
    padding: 1.15rem;
    border-radius: 0.75rem;
  }
}

/* Grids */
.grid-cols-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.grid-cols-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.grid-cols-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

@media (max-width: 960px) {
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-cols-3 {
    grid-template-columns: 1fr;
  }
  .grid-cols-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  /* Stat overview cards 2x2 grid on mobile */
  .stat-grid-4 {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.75rem !important;
  }
  .stat-card {
    padding: 0.85rem !important;
  }
}

/* Page Header Layout */
.page-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 640px) {
  .page-header-flex {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    margin-bottom: 1.5rem;
  }
}

.page-title {
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  font-weight: 900;
  color: #0f172a;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.showcase-badge {
  background: white;
  border: 2px solid #bfdbfe;
  border-radius: 1rem;
  padding: 1.25rem 1.75rem;
  text-align: center;
  box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.1);
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .showcase-badge {
    width: 100%;
    padding: 1rem 1.25rem;
  }
}

/* Calculator Component */
.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 1rem;
  padding: 1.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

@media (max-width: 640px) {
  .calc-card {
    padding: 1.15rem;
    border-radius: 0.75rem;
  }
}

.calc-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
}

.calc-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.calc-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 1rem;
  color: var(--text-main);
  background: var(--bg-card);
  outline: none;
  transition: all 0.15s ease;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring-color);
}

.form-input-total {
  color: var(--accent) !important;
  border-color: var(--accent) !important;
  background: var(--bg-subtle) !important;
  font-weight: 700;
}

.quick-amounts {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.amount-chip {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.825rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  min-height: 34px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.35rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.amount-chip:hover, .amount-chip:active {
  background: var(--border-color);
  color: var(--text-main);
}

.calc-breakdown {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 0.75rem;
  padding: 1.15rem;
  margin-top: 1.25rem;
}

@media (max-width: 640px) {
  .calc-breakdown {
    padding: 0.85rem;
  }
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 0;
  border-bottom: 1px dashed var(--border-color);
  font-size: 0.925rem;
  gap: 0.5rem;
  color: var(--text-muted);
}

.breakdown-row strong {
  color: var(--text-main);
}

.breakdown-row:last-child {
  border-bottom: none;
}

.breakdown-total {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 2px solid var(--border-color);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-main);
}

.breakdown-highlight {
  background: var(--primary-light);
  padding: 0.65rem 0.5rem;
  border-radius: 0.35rem;
  margin-top: 0.5rem;
  border: none;
}

.breakdown-highlight span,
.breakdown-highlight strong {
  color: var(--primary);
}

.calc-range-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 0.75rem 0.85rem;
  border-radius: 0.5rem;
  margin: 0.5rem 0;
}

.calc-info-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 0.6rem;
  padding: 0.75rem 1rem;
  font-size: 0.825rem;
  color: var(--text-muted);
}

/* Rate Cards & Badges */
.badge-rate {
  display: inline-flex;
  align-items: baseline;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  color: #1e40af;
  border: 1px solid #bfdbfe;
  padding: 0.5rem 1rem;
  border-radius: 0.75rem;
}

.rate-number {
  font-size: 2.25rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
}

@media (max-width: 640px) {
  .rate-number {
    font-size: 1.85rem;
  }
}

.rate-symbol {
  font-size: 1.25rem;
  font-weight: 700;
  margin-left: 0.15rem;
}

/* Responsive Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 0.5rem;
  border-radius: 0.5rem;
}

.tax-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
  background: white;
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.tax-table th {
  background: #f8fafc;
  color: #475569;
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.tax-table td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid #f1f5f9;
  color: #1e293b;
  font-size: 0.9rem;
}

.tax-table tr:last-child td {
  border-bottom: none;
}

.tax-table tr:hover td {
  background-color: var(--bg-subtle);
}

/* Table Controls Toolbar */
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  width: 100%;
}

.table-toolbar-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
  min-width: 280px;
}

.table-toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.table-search-box {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 150px;
  width: 100%;
}

.table-search-box .state-filter-input {
  width: 100%;
}

.table-select {
  background: var(--bg-page);
  border: 1.5px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 0.55rem 2rem 0.55rem 0.85rem;
  color: var(--text-main);
  font-size: 0.875rem;
  font-weight: 600;
  outline: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%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 0.6rem center;
  background-size: 1rem;
  box-sizing: border-box;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  flex-shrink: 0;
}

.table-select-county {
  width: 175px;
  min-width: 175px;
  max-width: 175px;
  flex-shrink: 0;
}

.table-select-sort {
  width: 185px;
  min-width: 185px;
  max-width: 185px;
  flex-shrink: 0;
}

.table-select-pagesize {
  width: 76px;
  min-width: 76px;
  max-width: 76px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .table-toolbar-left,
  .table-toolbar-right {
    width: 100%;
    gap: 0.5rem;
  }
  .table-search-box {
    width: 100%;
    min-width: 100%;
  }
  .table-select-county,
  .table-select-sort {
    flex: 1;
    min-width: 130px;
    max-width: none;
    width: auto;
  }
}

.table-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring-color);
}

/* Custom Searchable Combobox */
.combobox-wrapper {
  position: relative;
  width: 175px;
  min-width: 175px;
  max-width: 175px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .combobox-wrapper {
    flex: 1;
    min-width: 130px;
    max-width: none;
    width: auto;
  }
}

.combobox-btn {
  width: 100%;
  background: var(--bg-page);
  border: 1.5px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 0.55rem 0.75rem;
  color: var(--text-main);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  box-sizing: border-box;
  text-align: left;
}

.combobox-btn:hover {
  border-color: var(--text-muted);
}

.combobox-btn:focus,
.combobox-btn.open {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring-color);
}

.combobox-btn-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.combobox-btn-chevron {
  color: var(--text-muted);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  transition: transform 0.2s ease;
}

.combobox-btn.open .combobox-btn-chevron {
  transform: rotate(180deg);
}

.combobox-dropdown {
  position: absolute;
  top: calc(100% + 5px);
  left: 0;
  width: 250px;
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: 0.65rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  z-index: 100;
  overflow: hidden;
  animation: dropdownFadeIn 0.15s ease-out;
}

@keyframes dropdownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.combobox-search-box {
  padding: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-subtle);
  position: relative;
  display: flex;
  align-items: center;
}

.combobox-search-input {
  width: 100%;
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: 0.4rem;
  padding: 0.4rem 0.5rem 0.4rem 1.75rem;
  font-size: 0.825rem;
  color: var(--text-main);
  outline: none;
  box-sizing: border-box;
}

.combobox-search-input:focus {
  border-color: var(--primary);
}

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

.combobox-list {
  max-height: 220px;
  overflow-y: auto;
  padding: 0.35rem;
  scrollbar-width: thin;
}

.combobox-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.45rem 0.65rem;
  border-radius: 0.4rem;
  border: none;
  background: transparent;
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.12s ease, color 0.12s ease;
  box-sizing: border-box;
}

.combobox-item:hover,
.combobox-item:focus {
  background: var(--primary-light);
  color: var(--primary);
  outline: none;
}

.combobox-item.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
}

.combobox-empty {
  padding: 1rem 0.5rem;
  text-align: center;
  font-size: 0.825rem;
  color: var(--text-muted);
}

.th-sortable {
  cursor: pointer;
  user-select: none;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.th-sortable:hover {
  color: var(--primary) !important;
  background-color: var(--bg-subtle) !important;
}

.th-sort-icon {
  display: inline-flex;
  align-items: center;
  margin-left: 0.35rem;
  font-size: 0.75rem;
  opacity: 0.5;
  transition: opacity 0.15s ease;
}

.th-sortable:hover .th-sort-icon,
.th-sortable.active .th-sort-icon {
  opacity: 1;
  color: var(--primary);
}

/* Pagination Bar */
.pagination-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0 0.5rem;
  margin-top: 0.5rem;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 1rem;
}

.pagination-info {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: 0.45rem;
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.pagination-btn:hover:not(:disabled) {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

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

.pagination-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 0.35rem;
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: 0.45rem;
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.pagination-number:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.pagination-number.active {
  background: var(--primary) !important;
  color: #ffffff !important;
  border-color: var(--primary) !important;
  box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.25);
}

.pagination-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 34px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: #64748b;
  margin-bottom: 1.25rem;
}

.breadcrumb-sep {
  color: #cbd5e1;
}

/* API Showcase Banner */
.api-banner {
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: white;
  border-radius: 1.25rem;
  padding: 2.25rem;
  margin: 3rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

@media (max-width: 768px) {
  .api-banner {
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem 1.25rem;
    margin: 2rem 0;
  }
}

.api-code-snippet {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem 1.25rem;
  border-radius: 0.6rem;
  font-family: monospace;
  font-size: 0.85rem;
  color: #38bdf8;
  max-width: 480px;
  overflow-x: auto;
  word-break: break-all;
}

@media (max-width: 768px) {
  .api-code-snippet {
    max-width: 100%;
    font-size: 0.78rem;
    padding: 0.75rem;
  }
}

/* Footer */
.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 3.5rem 0 2rem;
  border-top: 1px solid #1e293b;
  margin-top: 4rem;
}

@media (max-width: 640px) {
  .footer {
    padding: 2.5rem 0 1.5rem;
    margin-top: 2.5rem;
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

.footer-title {
  color: white;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.825rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
@media (max-width: 640px) {
  .py-8 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
  .py-12 { padding-top: 1.75rem; padding-bottom: 1.75rem; }
}
.hidden { display: none !important; }

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   Dark Mode Component Styles
   ========================================================================== */
html.dark body {
  background-color: var(--bg-page);
  color: var(--text-main);
}

html.dark .navbar {
  background: rgba(9, 13, 22, 0.92);
  border-bottom-color: var(--border-color);
}

html.dark .brand {
  color: #f8fafc;
}

html.dark .nav-link {
  color: #94a3b8;
}

html.dark .nav-link:hover {
  color: #60a5fa;
  background-color: #1e293b;
}

html.dark .mobile-toggle-btn {
  background: #1e293b;
  border-color: #374151;
  color: #cbd5e1;
}

html.dark .mobile-toggle-btn:hover {
  background: #334155;
}

html.dark .mobile-drawer {
  background: #0f172a;
  border-bottom-color: var(--border-color);
}

html.dark .mobile-nav-link {
  color: #cbd5e1;
}

html.dark .mobile-nav-link:hover,
html.dark .mobile-nav-link:active {
  background-color: rgba(59, 130, 246, 0.18);
  color: #60a5fa;
}

html.dark .lang-btn,
html.dark .theme-btn {
  background: #1e293b;
  border-color: #374151;
  color: #e2e8f0;
}

html.dark .lang-btn:hover,
html.dark .theme-btn:hover {
  background: #334155;
}

html.dark .mobile-lang-label {
  color: #f8fafc;
}

html.dark .lang-dropdown,
html.dark .theme-dropdown {
  background: #111827;
  border-color: #374151;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
}

html.dark .lang-item,
html.dark .theme-item {
  color: #e2e8f0;
}

html.dark .lang-item:hover,
html.dark .lang-item.active,
html.dark .theme-item:hover,
html.dark .theme-item.active {
  background-color: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

html.dark .hero {
  background: radial-gradient(circle at 50% 0%, #172554 0%, #090d16 80%);
  border-bottom-color: var(--border-color);
}

html.dark .hero-title {
  color: #f8fafc;
}

html.dark .hero-subtitle {
  color: #94a3b8;
}

html.dark .hero-badge {
  background: rgba(30, 58, 138, 0.4);
  border-color: #1e40af;
  color: #93c5fd;
}

html.dark .search-box {
  background: #111827;
  border-color: #374151;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
}

html.dark .search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--ring-color), 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

html.dark .search-input {
  color: #f8fafc;
}

html.dark .search-input::placeholder {
  color: #64748b;
}

html.dark .geo-btn {
  background: #1e293b;
  border-color: #374151;
  color: #cbd5e1;
}

html.dark .geo-btn:hover {
  background: #334155;
  color: #ffffff;
}

html.dark .search-dropdown-menu {
  background: #111827;
  border-color: #374151;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

html.dark .search-result-item {
  border-bottom-color: #1f2937;
}

html.dark .search-result-item:hover,
html.dark .search-result-item:active {
  background-color: #1e293b;
}

html.dark .res-title {
  color: #f8fafc;
}

html.dark .res-sub {
  color: #94a3b8;
}

html.dark .res-rate {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.35);
  color: #34d399;
}

html.dark .res-badge-zip {
  background: rgba(59, 130, 246, 0.18);
  border-color: rgba(59, 130, 246, 0.35);
  color: #93c5fd;
}

html.dark .res-badge-city {
  background: rgba(16, 185, 129, 0.18);
  border-color: rgba(16, 185, 129, 0.35);
  color: #6ee7b7;
}

html.dark .res-badge-state {
  background: rgba(168, 85, 247, 0.18);
  border-color: rgba(168, 85, 247, 0.35);
  color: #d8b4fe;
}

html.dark .res-badge-neutral {
  background: rgba(148, 163, 184, 0.15);
  color: #cbd5e1;
  border-color: rgba(148, 163, 184, 0.3);
}

html.dark .res-badge-multiple {
  background: rgba(245, 158, 11, 0.18);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.35);
}

html.dark .card {
  background: var(--bg-card);
  border-color: var(--border-color);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

html.dark a.card:hover {
  border-color: #3b82f6;
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.5);
}

html.dark .states-filter-toolbar {
  background: #111827;
  border-color: #1f2937;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

html.dark .state-filter-input {
  background: #090d16;
  border-color: #374151;
  color: #f8fafc;
}

html.dark .state-filter-input:focus {
  border-color: var(--primary);
  background: #111827;
}

html.dark .az-letter-btn {
  background: #090d16;
  border-color: #1f2937;
  color: #f8fafc;
}

html.dark .az-letter-btn:hover:not(.disabled) {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  border-color: #3b82f6;
}

html.dark .az-letter-btn.disabled {
  background: #1e293b;
  border-color: transparent;
  color: #64748b;
  opacity: 0.35;
}

html.dark .state-empty-card {
  background: #111827;
  border-color: #374151;
}

html.dark .calc-card {
  background: #111827;
  border-color: #1f2937;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

html.dark .form-label {
  color: #cbd5e1;
}

html.dark .form-input {
  background: #090d16;
  border-color: #374151;
  color: #f8fafc;
}

html.dark .form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring-color);
}

html.dark .amount-chip {
  background: #1e293b;
  border-color: #374151;
  color: #cbd5e1;
}

html.dark .amount-chip:hover,
html.dark .amount-chip:active {
  background: #334155;
  color: #ffffff;
}

html.dark .calc-breakdown {
  background: #090d16;
  border-color: #1f2937;
}

html.dark .breakdown-row {
  border-bottom-color: #1f2937;
  color: #cbd5e1;
}

html.dark .breakdown-row strong {
  color: #f8fafc;
}

html.dark .calc-rep-tax-row {
  background: rgba(59, 130, 246, 0.15);
}

html.dark .calc-range-box {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.3);
  color: #fbbf24;
}

html.dark .calc-range-box strong {
  color: #fde68a !important;
}

html.dark .calc-clear-btn {
  background: #1e293b;
  border-color: #374151;
  color: #94a3b8;
}

html.dark .calc-clear-btn:hover {
  background-color: rgba(239, 68, 68, 0.25);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.4);
}

html.dark .breakdown-total {
  border-top-color: #374151;
  color: #f8fafc;
}

html.dark .badge-rate {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.5), rgba(30, 64, 175, 0.3));
  border-color: #1e40af;
  color: #93c5fd;
}

html.dark .showcase-badge {
  background: #111827;
  border-color: #1e40af;
  color: #f8fafc;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

html.dark h1, html.dark h2, html.dark h3, html.dark h4, html.dark h5, html.dark h6 {
  color: #f8fafc;
}

html.dark .page-title {
  color: #f8fafc;
}

html.dark .tax-table {
  background: #111827;
  border-color: var(--border-color);
}

html.dark .tax-table th {
  background: #1e293b;
  color: #cbd5e1;
  border-bottom-color: var(--border-color);
}

html.dark .tax-table td {
  border-bottom-color: #1f2937;
  color: #e2e8f0;
}

html.dark .tax-table tr:hover td {
  background: #172236;
}

html.dark .table-select {
  background: #090d16;
  border-color: #374151;
  color: #f8fafc;
}

html.dark .table-select:focus {
  border-color: var(--primary);
  background: #111827;
}

html.dark .th-sortable:hover {
  background: #273549 !important;
  color: #60a5fa !important;
}

html.dark .pagination-btn,
html.dark .pagination-number {
  background: #090d16;
  border-color: #1f2937;
  color: #f8fafc;
}

html.dark .pagination-btn:hover:not(:disabled),
html.dark .pagination-number:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: #3b82f6;
  color: #60a5fa;
}

html.dark .pagination-btn:disabled {
  background: #1e293b;
  border-color: transparent;
  color: #64748b;
  opacity: 0.35;
}

html.dark .pagination-number.active {
  background: var(--primary) !important;
  color: #ffffff !important;
  border-color: var(--primary) !important;
}

html.dark .combobox-btn {
  background: #090d16;
  border-color: #374151;
  color: #f8fafc;
}

html.dark .combobox-btn:hover {
  border-color: #64748b;
}

html.dark .combobox-btn:focus,
html.dark .combobox-btn.open {
  border-color: var(--primary);
  background: #111827;
}

html.dark .combobox-dropdown {
  background: #0f172a;
  border-color: #334155;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

html.dark .combobox-search-box {
  background: #1e293b;
  border-bottom-color: #334155;
}

html.dark .combobox-search-input {
  background: #090d16;
  border-color: #334155;
  color: #f8fafc;
}

html.dark .combobox-search-input:focus {
  border-color: var(--primary);
}

html.dark .combobox-item {
  color: #f8fafc;
}

html.dark .combobox-item:hover,
html.dark .combobox-item:focus,
html.dark .combobox-item.active {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

html.dark .combobox-empty {
  color: #94a3b8;
}

html.dark .breadcrumbs {
  color: #94a3b8;
}

html.dark .breadcrumb-sep {
  color: #475569;
}

html.dark .footer {
  background: #050811;
  border-top-color: #111827;
}

/* ==========================================================================
   View Transitions Circular Ripple Animations (From Button Click Position)
   ========================================================================== */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}

::view-transition-old(root) {
  z-index: 1;
}

::view-transition-new(root) {
  z-index: 999999;
}

.dark::view-transition-old(root) {
  z-index: 1;
}

.dark::view-transition-new(root) {
  z-index: 999999;
}

/* Fallback Ripple Circle for browsers without native View Transitions */
.theme-ripple-circle {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 999999;
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.22s ease;
  will-change: transform, opacity;
}

/* ==========================================================================
   Interactive US SVG Map Styles & Modal Popwindow
   ========================================================================== */
.us-map-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  margin-bottom: 3.5rem;
  width: 100%;
}

.us-map-header {
  margin-bottom: 1.5rem;
}

.us-map-container {
  position: relative;
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  background: var(--bg-subtle, #f8fafc);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.25rem 1rem;
  overflow: hidden;
}

.us-map-svg {
  width: 100%;
  height: auto;
  display: block;
}

.us-map-state {
  fill: #cbd5e1;
  stroke: #ffffff;
  stroke-width: 0.8;
  cursor: pointer;
  transition: fill 0.15s ease, filter 0.15s ease, stroke 0.15s ease, stroke-width 0.15s ease;
  vector-effect: non-scaling-stroke;
}

html.dark .us-map-state,
[data-theme="dark"] .us-map-state {
  fill: #334155;
  stroke: #1e293b;
}

.us-map-state.is-zero-tax {
  fill: #86efac;
}
html.dark .us-map-state.is-zero-tax,
[data-theme="dark"] .us-map-state.is-zero-tax {
  fill: #166534;
}

.us-map-state.is-sst {
  fill: #93c5fd;
}
html.dark .us-map-state.is-sst,
[data-theme="dark"] .us-map-state.is-sst {
  fill: #1e40af;
}

.us-map-state.state-hover,
.us-map-state:hover {
  fill: #38bdf8 !important;
  stroke: #0284c7;
  stroke-width: 2.2;
  filter: drop-shadow(0 2px 8px rgba(56, 189, 248, 0.5));
}

.us-map-state.state-active {
  fill: #2563eb !important;
  stroke: #1d4ed8;
  stroke-width: 2.5;
  filter: drop-shadow(0 3px 8px rgba(37, 99, 235, 0.4));
}

html.dark .us-map-state.state-active,
[data-theme="dark"] .us-map-state.state-active {
  fill: #3b82f6 !important;
  stroke: #93c5fd;
  stroke-width: 2.5;
  filter: drop-shadow(0 3px 8px rgba(59, 130, 246, 0.4));
}

.us-map-label {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 10px;
  font-weight: 800;
  fill: #334155;
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none !important;
  user-select: none;
}
html.dark .us-map-label,
[data-theme="dark"] .us-map-label {
  fill: #f8fafc;
}

.us-map-borders {
  pointer-events: none !important;
}

.us-map-borders path {
  fill: none !important;
  stroke: #ffffff;
  stroke-width: 0.8;
  pointer-events: none !important;
}

html.dark .us-map-borders path,
[data-theme="dark"] .us-map-borders path {
  fill: none !important;
  stroke: #1e293b;
}

.us-map-separator {
  fill: none !important;
  stroke: #94a3b8;
  stroke-width: 1.5;
  stroke-dasharray: 4,3;
  pointer-events: none !important;
}

.us-map-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 0.45rem 0.75rem;
  border-radius: 0.5rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.25);
  font-size: 0.825rem;
  z-index: 50;
  transform: translate(-50%, -125%);
  white-space: nowrap;
  transition: opacity 0.1s ease;
}

/* Modal Popwindow */
.us-map-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.us-map-modal-content {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 1rem;
  padding: 1.75rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

html.dark .us-map-modal-content,
[data-theme="dark"] .us-map-modal-content {
  background: #0f172a;
  border-color: #334155;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.us-map-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.35rem;
  border-radius: 0.375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, background-color 0.15s;
}

.us-map-modal-close:hover {
  color: var(--text-main);
  background-color: var(--bg-subtle);
}

/* ==========================================================================
   OpenAI/Stripe-Style API Reference Documentation Layout & Components
   ========================================================================== */
.api-docs-wrapper {
  background: var(--bg-page);
  min-height: calc(100vh - 4.5rem);
  border-top: 1px solid var(--border-color);
  width: 100%;
}

/* Mobile Quick-Nav Sticky Bar (< 900px) */
.api-mobile-nav-bar {
  display: none;
  position: sticky;
  top: 4rem;
  z-index: 35;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 0.5rem 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.api-mobile-nav-scroll {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding: 0 1rem;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.api-mobile-nav-scroll::-webkit-scrollbar {
  display: none;
}

.api-mobile-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.65rem;
  border-radius: 9999px;
  background: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  text-decoration: none;
  transition: all 0.15s ease;
}

.api-mobile-pill.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* Layout Grid Container */
.api-docs-container {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  max-width: 1400px;
  margin: 0 auto;
  min-height: calc(100vh - 4.5rem);
}

/* Left Sidebar */
.api-docs-sidebar {
  position: sticky;
  top: 4.5rem;
  height: calc(100vh - 4.5rem);
  overflow-y: auto;
  background: var(--bg-card);
  border-right: 1px solid var(--border-color);
  padding: 1.25rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.api-docs-sidebar::-webkit-scrollbar {
  width: 4px;
}
.api-docs-sidebar::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.api-sidebar-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.85rem;
}

.api-tag-version {
  font-size: 0.68rem;
  font-weight: 800;
  padding: 0.12rem 0.4rem;
  background: rgba(37, 99, 235, 0.12);
  color: var(--primary);
  border-radius: 0.35rem;
  border: 1px solid rgba(37, 99, 235, 0.25);
  font-family: ui-monospace, SFMono-Regular, monospace;
}

.api-sidebar-search {
  position: relative;
  display: flex;
  align-items: center;
}

.api-sidebar-search svg {
  position: absolute;
  left: 0.65rem;
  color: var(--text-muted);
  pointer-events: none;
}

.api-sidebar-search-input {
  width: 100%;
  padding: 0.42rem 1.8rem 0.42rem 1.9rem;
  font-size: 0.8rem;
  border-radius: 0.45rem;
  border: 1px solid var(--border-color);
  background: var(--bg-subtle);
  color: var(--text-main);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.api-sidebar-search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.api-search-clear {
  position: absolute;
  right: 0.5rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0.2rem;
}

.api-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.api-nav-group-title {
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  padding: 0.2rem 0.45rem;
}

.api-nav-link {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.6rem;
  border-radius: 0.4rem;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s, background-color 0.15s, border-color 0.15s;
  border-left: 2px solid transparent;
}

.api-nav-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.api-nav-link:hover {
  color: var(--text-main);
  background: var(--bg-subtle);
}

.api-nav-link.active {
  color: var(--primary);
  font-weight: 700;
  background: var(--primary-light);
  border-left-color: var(--primary);
}

/* Method Badges */
.method-badge {
  font-size: 0.65rem;
  font-weight: 800;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
  letter-spacing: 0.04em;
  line-height: 1;
  flex-shrink: 0;
}

.method-badge.get {
  background: rgba(16, 185, 129, 0.15);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

html.dark .method-badge.get,
[data-theme="dark"] .method-badge.get {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.35);
}

/* Main Content Area */
.api-docs-content {
  padding: 2rem 2.5rem 4rem;
  max-width: 1140px;
  min-width: 0;
}

.api-section {
  margin-bottom: 3.5rem;
  scroll-margin-top: 5.5rem;
}

.api-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.breadcrumb-sep {
  color: var(--border-color);
}

.api-section-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.025em;
  margin: 0 0 0.6rem 0;
  line-height: 1.25;
}

.api-section-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 820px;
  margin: 0 0 1.25rem 0;
}

.api-subheading {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 1.25rem 0 0.6rem 0;
}

/* Stats Pill Bar */
.api-stats-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.api-stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
}

.stat-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}
.stat-dot.green { background: #10b981; }
.stat-dot.blue { background: #3b82f6; }
.stat-dot.purple { background: #8b5cf6; }
.stat-dot.amber { background: #f59e0b; }

/* Base URL Box */
.api-base-url-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  max-width: 650px;
  margin-top: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.api-card-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.api-url-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.api-proto-badge {
  font-size: 0.65rem;
  font-weight: 800;
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 0.25rem;
  padding: 0.1rem 0.35rem;
  font-family: ui-monospace, SFMono-Regular, monospace;
}

.api-url-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--primary);
  word-break: break-all;
}

.api-copy-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.75rem;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.api-copy-btn:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.api-code-snippet-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 650px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  font-size: 0.85rem;
  color: var(--text-main);
}

.api-snippet-copy-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 0.3rem;
  cursor: pointer;
  transition: all 0.15s;
}

.api-snippet-copy-btn:hover {
  color: var(--text-main);
  border-color: var(--primary);
}

.api-section-divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 3.5rem 0;
}

/* Endpoint Cards (OpenAI 2-Column Split Layout) */
.api-endpoint-card {
  margin-bottom: 3.5rem;
  scroll-margin-top: 5.5rem;
}

.api-endpoint-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.api-spec-col {
  min-width: 0;
}

.api-endpoint-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.endpoint-path {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
  background: var(--bg-subtle);
  padding: 0.2rem 0.5rem;
  border-radius: 0.35rem;
  border: 1px solid var(--border-color);
  word-break: break-all;
}

.endpoint-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 0.25rem 0 0.5rem 0;
  line-height: 1.3;
}

.endpoint-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.15rem;
}

/* Tables */
.api-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  margin: 0.65rem 0 1.15rem 0;
  background: var(--bg-card);
  scrollbar-width: thin;
}

.api-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.825rem;
}

.api-table th {
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.api-table td {
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: top;
  line-height: 1.5;
}

.api-table tr:last-child td {
  border-bottom: none;
}

.type-badge {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.7rem;
  color: #8b5cf6;
  background: rgba(139, 92, 246, 0.1);
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
  font-weight: 600;
  display: inline-block;
}

.req-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
  display: inline-block;
}
.req-badge.req {
  color: #e11d48;
  background: rgba(225, 29, 72, 0.1);
}
.req-badge.opt {
  color: var(--text-muted);
  background: var(--bg-subtle);
}

.status-badge {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 0.3rem;
  display: inline-block;
  white-space: nowrap;
}
.status-badge.s200 { background: rgba(16, 185, 129, 0.15); color: #059669; }
.status-badge.s400 { background: rgba(234, 179, 8, 0.15); color: #d97706; }
.status-badge.s404 { background: rgba(249, 115, 22, 0.15); color: #ea580c; }
.status-badge.s500 { background: rgba(239, 68, 68, 0.15); color: #dc2626; }

/* Right Code Column (OpenAI Dark IDE Aesthetic) */
.api-code-col {
  min-width: 0;
  position: sticky;
  top: 5.5rem;
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

.api-tabs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #090d16;
  border-bottom: 1px solid #1e293b;
  padding: 0.4rem 0.75rem;
  gap: 0.5rem;
}

.api-tabs-group {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.api-tab-btn {
  background: none;
  border: none;
  color: #94a3b8;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.6rem;
  border-radius: 0.35rem;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.api-tab-btn:hover {
  color: #f8fafc;
  background: rgba(255, 255, 255, 0.05);
}

.api-tab-btn.active {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  font-weight: 700;
}

.api-code-copy-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #cbd5e1;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.25rem 0.55rem;
  border-radius: 0.3rem;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.api-code-copy-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.api-code-body {
  padding: 0.9rem 1.1rem;
  background: #0f172a;
  color: #f8fafc;
  overflow-x: auto;
  min-height: 100px;
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}

.api-code-body pre,
.api-response-body {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.6;
}

/* Syntax Highlighting Colors */
.c-kw { color: #f43f5e; font-weight: 600; }
.c-str { color: #38bdf8; }
.c-num { color: #f59e0b; }
.c-prop { color: #a78bfa; }
.c-bool { color: #ec4899; }
.c-func { color: #34d399; }

/* Response Box */
.api-response-card {
  border-top: 1px solid #1e293b;
  background: #0b1120;
}

.api-response-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 1rem;
  background: #060913;
  border-bottom: 1px solid #1e293b;
  gap: 0.5rem;
}

.api-latency-pill {
  font-size: 0.65rem;
  font-weight: 700;
  background: rgba(59, 130, 246, 0.15);
  color: #38bdf8;
  border-radius: 0.25rem;
  padding: 0.05rem 0.35rem;
  font-family: ui-monospace, monospace;
}

.api-test-link {
  font-size: 0.725rem;
  color: #38bdf8;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s;
  white-space: nowrap;
}
.api-test-link:hover {
  color: #7dd3fc;
  text-decoration: underline;
}

.api-response-body {
  padding: 0.9rem 1.1rem;
  color: #e2e8f0;
  max-height: 260px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}

/* SDK Cards */
.api-sdk-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.api-sdk-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-subtle);
}

.api-sdk-icon {
  font-size: 1.1rem;
}

.api-standalone-code {
  background: #0f172a;
  color: #f8fafc;
  padding: 1.1rem 1.25rem;
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.825rem;
  line-height: 1.6;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}

/* Responsive Breakpoints */
@media (max-width: 1120px) {
  .api-endpoint-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .api-code-col {
    position: static;
  }
}

@media (max-width: 900px) {
  .api-mobile-nav-bar {
    display: block;
  }
  .api-docs-container {
    grid-template-columns: 1fr;
  }
  .api-docs-sidebar {
    display: none;
  }
  .api-docs-content {
    padding: 1.5rem 1rem 3rem;
  }
  .api-section-title {
    font-size: 1.5rem;
  }
}

/* ==========================================================================
   Privacy Policy & Terms of Service Layout Styles
   ========================================================================== */
.legal-page-wrapper {
  background: var(--bg-page);
  min-height: calc(100vh - 120px);
  padding: 3rem 0 5rem;
}

.legal-container {
  max-width: 1060px;
  margin: 0 auto;
}

.legal-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.legal-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.025em;
  margin: 0.25rem 0 0.5rem 0;
}

.legal-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

.legal-grid {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 2.5rem;
  align-items: start;
}

.legal-content-body {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.875rem;
  padding: 2.25rem 2.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.legal-section {
  margin-bottom: 2.25rem;
}

.legal-section:last-child {
  margin-bottom: 0;
}

.legal-section h2 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 0 0 0.85rem 0;
  letter-spacing: -0.015em;
}

.legal-section p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-muted);
  margin: 0 0 1rem 0;
}

.legal-list {
  list-style-type: disc;
  padding-left: 1.4rem;
  margin: 0.75rem 0 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  color: var(--text-muted);
  font-size: 0.925rem;
  line-height: 1.65;
}

.legal-list strong {
  color: var(--text-main);
}

.legal-alert-box {
  background: rgba(234, 179, 8, 0.08);
  border: 1px solid rgba(234, 179, 8, 0.25);
  border-left: 4px solid #eab308;
  border-radius: 0.5rem;
  padding: 1.15rem 1.25rem;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-main);
  margin: 1rem 0;
}

.legal-sidebar {
  position: sticky;
  top: 90px;
}

.legal-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.legal-nav-list a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.15s;
}

.legal-nav-list a:hover {
  color: var(--text-main);
  background: var(--bg-subtle);
}

.legal-nav-list a.active {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.1);
  font-weight: 700;
}

@media (max-width: 860px) {
  .legal-grid {
    grid-template-columns: 1fr;
  }
  .legal-sidebar {
    display: none;
  }
  .legal-content-body {
    padding: 1.5rem;
  }
  .legal-title {
    font-size: 1.75rem;
  }
}

/* ==========================================================================
   Privacy & LocalStorage Consent Banner Styles
   ========================================================================== */
.consent-banner-wrapper {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  max-width: 440px;
  width: calc(100vw - 3rem);
  pointer-events: none;
}

.consent-banner-card {
  pointer-events: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.15rem 1.25rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.consent-banner-content {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.consent-icon-wrapper {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 0.5rem;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.1rem;
}

.consent-text-box {
  flex: 1;
}

.consent-desc {
  font-size: 0.835rem;
  line-height: 1.55;
  color: var(--text-muted);
  margin: 0 0 0.85rem 0;
}

.consent-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.consent-accept-btn {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.4rem 0.95rem;
  border-radius: 0.5rem;
  cursor: pointer;
}

.consent-link {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s;
}

.consent-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

@media (max-width: 640px) {
  .consent-banner-wrapper {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
    width: auto;
  }
  .consent-banner-card {
    padding: 1rem;
  }
}

/* ==========================================================================
   Cookie Preferences Modal & Toggle Controls
   ========================================================================== */
.cookie-toggle-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.65rem;
  padding: 0.9rem 1.15rem;
  transition: border-color 0.15s;
}

.cookie-toggle-item:hover {
  border-color: var(--primary);
}

.cookie-toggle-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* iOS-Style Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
  cursor: pointer;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-switch .slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #cbd5e1;
  transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 24px;
}

.dark .toggle-switch .slider {
  background-color: #475569;
}

.toggle-switch .slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .slider {
  background-color: var(--primary);
}

.toggle-switch input:checked + .slider:before {
  transform: translateX(20px);
}

/* Cookie Preferences Modal Overlay */
.cookie-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.cookie-modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  max-width: 840px;
  width: 95%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.cookie-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-card);
}

.cookie-modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.4rem;
  border-radius: 0.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.cookie-modal-close:hover {
  background: var(--bg-subtle);
  color: var(--text-main);
}

.cookie-modal-body {
  padding: 1.75rem 2rem;
  overflow-y: auto;
  scrollbar-width: thin;
}

.cookie-categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.cookie-modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-subtle);
  flex-wrap: nowrap;
}

.cookie-modal-footer-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: nowrap;
}

@media (max-width: 768px) {
  .cookie-categories-grid {
    grid-template-columns: 1fr;
  }
  .cookie-modal-header,
  .cookie-modal-body,
  .cookie-modal-footer {
    padding: 1.25rem 1.25rem;
  }
  .cookie-modal-footer {
    flex-direction: column;
    align-items: stretch;
    gap: 0.85rem;
  }
  .cookie-modal-footer-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  .cookie-modal-footer-actions .btn-cookie-action {
    width: 100%;
  }
}

/* ==========================================================================
   Elevated Cookie Action Buttons & Visual Hierarchy
   ========================================================================== */
.btn-cookie-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.2;
  padding: 0.55rem 1.15rem;
  border-radius: 0.55rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn-cookie-action:active {
  transform: scale(0.97);
}

/* 1. Primary CTA: Accept All / 全部接受 */
.btn-cookie-accept-all {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff !important;
  border: 1px solid #1d4ed8;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-cookie-accept-all:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

/* 2. Success Action: Save Preferences / 保存偏好设置 */
.btn-cookie-save-prefs {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: #ffffff !important;
  border: 1px solid #047857;
  box-shadow: 0 2px 4px rgba(5, 150, 105, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-cookie-save-prefs:hover {
  background: linear-gradient(135deg, #047857 0%, #065f46 100%);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

/* 3. Secondary/Outline: Manage Preferences / 偏好设置 */
.btn-cookie-manage {
  background: var(--bg-card);
  color: var(--text-main) !important;
  border: 1px solid var(--border-color);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-cookie-manage:hover {
  background: var(--bg-subtle);
  border-color: var(--primary);
  color: var(--primary) !important;
  transform: translateY(-1px);
}

/* 4. Neutral/Subtle: Necessary Only / 仅必要项 */
.btn-cookie-necessary-only {
  background: var(--bg-subtle);
  color: var(--text-muted) !important;
  border: 1px solid var(--border-color);
}

.btn-cookie-necessary-only:hover {
  background: var(--bg-card);
  color: var(--text-main) !important;
  border-color: var(--border-color);
  transform: translateY(-1px);
}

.btn-cookie-action svg {
  flex-shrink: 0;
}