.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--theme-border, #e2e8f0);
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s;
}
.theme-toggle:hover {
  background: var(--theme-bg-secondary, #f8fafc);
  border-color: var(--theme-primary, #3b82f6);
}
.theme-toggle:focus-visible {
  outline: 3px solid var(--theme-primary, #3b82f6);
  outline-offset: 2px;
}
.theme-toggle .theme-toggle-sun {
  display: none;
}
.theme-toggle .theme-toggle-moon {
  display: block;
}
[data-theme=dark] .theme-toggle .theme-toggle-sun {
  display: block;
}
[data-theme=dark] .theme-toggle .theme-toggle-moon {
  display: none;
}

.theme-transition {
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.text-primary {
  color: var(--theme-primary);
}

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

.text-muted {
  color: var(--theme-text-muted);
}

.text-success {
  color: var(--theme-success);
}

.text-warning {
  color: var(--theme-warning);
}

.text-danger {
  color: var(--theme-danger);
}

.text-info {
  color: var(--theme-info);
}

.bg-primary {
  background-color: var(--theme-primary);
}

.bg-secondary {
  background-color: var(--theme-bg-secondary);
}

.bg-success {
  background-color: var(--theme-success);
}

.bg-warning {
  background-color: var(--theme-warning);
}

.bg-danger {
  background-color: var(--theme-danger);
}

@media print {
  * {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
  }
  .theme-toggle {
    display: none !important;
  }
}
:root {
  --ct-primary: #F97316;
  --ct-primary-hover: #EA580C;
  --ct-primary-light: #FFF7ED;
  --ct-secondary: #3B82F6;
  --ct-secondary-hover: #2563EB;
  --ct-secondary-light: #EFF6FF;
  --ct-accent: #1E3A5F;
  --ct-success: #16A34A;
  --ct-success-light: #DCFCE7;
  --ct-warning: #CA8A04;
  --ct-warning-light: #FEF9C3;
  --ct-danger: #DC2626;
  --ct-danger-light: #FEE2E2;
  --ct-info: #0284C7;
  --ct-info-light: #E0F2FE;
  --ct-bg: #FFFFFF;
  --ct-bg-secondary: #F8FAFC;
  --ct-bg-tertiary: #F1F5F9;
  --ct-text: #1E293B;
  --ct-text-secondary: #475569;
  --ct-text-muted: #94A3B8;
  --ct-border: #E2E8F0;
  --ct-border-focus: #F97316;
  --ct-space-xs: 0.25rem;
  --ct-space-sm: 0.5rem;
  --ct-space-md: 1rem;
  --ct-space-lg: 1.5rem;
  --ct-space-xl: 2rem;
  --ct-space-2xl: 3rem;
  --ct-font-sans: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --ct-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --ct-radius-sm: 4px;
  --ct-radius-md: 6px;
  --ct-radius-lg: 8px;
  --ct-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --ct-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --ct-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --ct-max-width: 1200px;
  --ct-header-height: 60px;
  --theme-primary: var(--ct-primary);
  --theme-bg-secondary: var(--ct-bg-secondary);
  --theme-border: var(--ct-border);
  --theme-text-secondary: var(--ct-text-secondary);
  --theme-text-muted: var(--ct-text-muted);
  --theme-success: var(--ct-success);
  --theme-warning: var(--ct-warning);
  --theme-danger: var(--ct-danger);
  --theme-info: var(--ct-info);
  --platform-surface: var(--ct-bg);
  --platform-border: var(--ct-border);
}

[data-theme=dark] {
  --ct-primary: #FB923C;
  --ct-primary-hover: #FDBA74;
  --ct-primary-light: #431407;
  --ct-secondary: #60A5FA;
  --ct-secondary-hover: #93C5FD;
  --ct-secondary-light: #1E3A5F;
  --ct-accent: #93C5FD;
  --ct-success: #4ADE80;
  --ct-success-light: #14532D;
  --ct-warning: #FACC15;
  --ct-warning-light: #422006;
  --ct-danger: #F87171;
  --ct-danger-light: #450A0A;
  --ct-info: #38BDF8;
  --ct-info-light: #0C4A6E;
  --ct-bg: #0F172A;
  --ct-bg-secondary: #1E293B;
  --ct-bg-tertiary: #334155;
  --ct-text: #F1F5F9;
  --ct-text-secondary: #CBD5E1;
  --ct-text-muted: #64748B;
  --ct-border: #334155;
  --ct-border-focus: #FB923C;
  --ct-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --ct-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4);
  --ct-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5);
  --platform-surface: var(--ct-bg-secondary);
  --platform-border: var(--ct-border);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme=light]) {
    --ct-primary: #FB923C;
    --ct-primary-hover: #FDBA74;
    --ct-primary-light: #431407;
    --ct-secondary: #60A5FA;
    --ct-secondary-hover: #93C5FD;
    --ct-secondary-light: #1E3A5F;
    --ct-accent: #93C5FD;
    --ct-success: #4ADE80;
    --ct-success-light: #14532D;
    --ct-warning: #FACC15;
    --ct-warning-light: #422006;
    --ct-danger: #F87171;
    --ct-danger-light: #450A0A;
    --ct-info: #38BDF8;
    --ct-info-light: #0C4A6E;
    --ct-bg: #0F172A;
    --ct-bg-secondary: #1E293B;
    --ct-bg-tertiary: #334155;
    --ct-text: #F1F5F9;
    --ct-text-secondary: #CBD5E1;
    --ct-text-muted: #64748B;
    --ct-border: #334155;
    --ct-border-focus: #FB923C;
    --ct-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --ct-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4);
    --ct-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5);
  }
}
*,
*::before,
*::after {
  box-sizing: border-box;
}

body.curious-tools {
  margin: 0;
  padding: 0;
  font-family: var(--ct-font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ct-text);
  background: var(--ct-bg);
  -webkit-font-smoothing: antialiased;
}

.ct-container {
  width: 100%;
  max-width: var(--ct-max-width);
  margin: 0 auto;
  padding: 0 var(--ct-space-md);
}

.ct-main {
  min-height: calc(100vh - var(--ct-header-height) - 200px);
  padding: var(--ct-space-xl) 0;
}

.ct-header {
  height: var(--ct-header-height);
  background: var(--ct-bg);
  border-bottom: 1px solid var(--ct-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.ct-header .ct-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ct-logo {
  display: flex;
  align-items: center;
  gap: var(--ct-space-sm);
  text-decoration: none;
  color: var(--ct-text);
  font-weight: 600;
  font-size: 1.25rem;
}
.ct-logo:hover {
  color: var(--ct-primary);
}

.ct-nav {
  display: flex;
  align-items: center;
  gap: var(--ct-space-lg);
}
.ct-nav a {
  color: var(--ct-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s;
}
.ct-nav a:hover {
  color: var(--ct-primary);
}

.ct-footer {
  background: var(--ct-bg-secondary);
  border-top: 1px solid var(--ct-border);
  padding: var(--ct-space-xl) 0;
  margin-top: var(--ct-space-2xl);
}
.ct-footer .ct-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--ct-space-md);
}

.ct-footer-brand a {
  display: block;
}

.ct-footer-logo {
  opacity: 0.8;
  transition: opacity 0.15s;
}
.ct-footer-logo:hover {
  opacity: 1;
}

.ct-footer-links {
  display: flex;
  gap: var(--ct-space-lg);
}
.ct-footer-links a {
  color: var(--ct-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
}
.ct-footer-links a:hover {
  color: var(--ct-primary);
}

.ct-footer-copy {
  color: var(--ct-text-muted);
  font-size: 0.875rem;
}

.ct-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--ct-space-md);
}

.ct-tool-card {
  display: block;
  padding: var(--ct-space-lg);
  background: var(--ct-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-lg);
  text-decoration: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.ct-tool-card:hover {
  border-color: var(--ct-primary);
  box-shadow: var(--ct-shadow-md);
}
.ct-tool-card h3 {
  margin: 0 0 var(--ct-space-xs);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ct-text);
}
.ct-tool-card p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--ct-text-secondary);
}

.ct-tool-page {
  max-width: 900px;
  margin: 0 auto;
}

.ct-tool-header {
  margin-bottom: var(--ct-space-xl);
}
.ct-tool-header h1 {
  margin: 0 0 var(--ct-space-sm);
  font-size: 1.75rem;
  font-weight: 700;
}
.ct-tool-header p {
  margin: 0;
  color: var(--ct-text-secondary);
  font-size: 1rem;
}

.ct-tool {
  display: flex;
  flex-direction: column;
  gap: var(--ct-space-lg);
}

.ct-tool-section label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--ct-space-sm);
  color: var(--ct-text);
}

.ct-textarea {
  width: 100%;
  min-height: 200px;
  padding: var(--ct-space-md);
  font-family: var(--ct-font-mono);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--ct-text);
  background: var(--ct-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-md);
  resize: vertical;
}
.ct-textarea:focus {
  outline: none;
  border-color: var(--ct-border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.ct-textarea::placeholder {
  color: var(--ct-text-muted);
}
.ct-textarea.ct-readonly {
  background: var(--ct-bg-secondary);
}

.ct-input {
  width: 100%;
  padding: var(--ct-space-sm) var(--ct-space-md);
  font-size: 0.9rem;
  color: var(--ct-text);
  background: var(--ct-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-md);
}
.ct-input:focus {
  outline: none;
  border-color: var(--ct-border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.ct-select {
  padding: var(--ct-space-sm) var(--ct-space-md);
  font-size: 0.9rem;
  color: var(--ct-text);
  background: var(--ct-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-md);
  cursor: pointer;
}
.ct-select:focus {
  outline: none;
  border-color: var(--ct-border-focus);
}

.ct-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ct-space-sm);
  padding: var(--ct-space-sm) var(--ct-space-lg);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--ct-radius-md);
  cursor: pointer;
  transition: all 0.15s;
  border: none;
}
.ct-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ct-btn-primary {
  background: var(--ct-primary);
  color: white;
}
.ct-btn-primary:hover:not(:disabled) {
  background: var(--ct-primary-hover);
}

.ct-btn-secondary {
  background: var(--ct-bg-tertiary);
  color: var(--ct-text);
}
.ct-btn-secondary:hover:not(:disabled) {
  background: var(--ct-border);
}

.ct-btn-group {
  display: flex;
  gap: var(--ct-space-sm);
  flex-wrap: wrap;
}

.ct-output {
  position: relative;
}
.ct-output .ct-copy-btn {
  position: absolute;
  top: var(--ct-space-sm);
  right: var(--ct-space-sm);
  padding: var(--ct-space-xs) var(--ct-space-sm);
  font-size: 0.75rem;
  background: var(--ct-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-sm);
  cursor: pointer;
}
.ct-output .ct-copy-btn:hover {
  background: var(--ct-bg-tertiary);
}
.ct-output .ct-copy-btn.copied {
  background: var(--ct-success);
  color: white;
  border-color: var(--ct-success);
}

.ct-status {
  padding: var(--ct-space-sm) var(--ct-space-md);
  border-radius: var(--ct-radius-md);
  font-size: 0.875rem;
}
.ct-status.ct-status-success {
  background: rgba(34, 197, 94, 0.1);
  color: #166534;
  border: 1px solid rgba(34, 197, 94, 0.2);
}
.ct-status.ct-status-error {
  background: rgba(239, 68, 68, 0.1);
  color: #991b1b;
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.ct-status.ct-status-warning {
  background: rgba(245, 158, 11, 0.1);
  color: #92400e;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.ct-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--ct-space-lg);
}

.ct-category-card {
  padding: var(--ct-space-lg);
  background: var(--ct-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-lg);
}
.ct-category-card h2 {
  margin: 0 0 var(--ct-space-md);
  font-size: 1.125rem;
  font-weight: 600;
}
.ct-category-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.ct-category-card ul li {
  margin-bottom: var(--ct-space-xs);
}
.ct-category-card ul a {
  color: var(--ct-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
}
.ct-category-card ul a:hover {
  color: var(--ct-primary);
}

.ct-hero {
  text-align: center;
  padding: var(--ct-space-2xl) 0;
}
.ct-hero h1 {
  margin: 0 0 var(--ct-space-md);
  font-size: 2.5rem;
  font-weight: 700;
}
.ct-hero p {
  margin: 0 auto var(--ct-space-xl);
  max-width: 600px;
  color: var(--ct-text-secondary);
  font-size: 1.125rem;
}

.ct-popular-tools {
  margin-top: var(--ct-space-2xl);
}
.ct-popular-tools h2 {
  margin: 0 0 var(--ct-space-lg);
  font-size: 1.25rem;
  font-weight: 600;
}

.ct-seo-content {
  margin-top: var(--ct-space-2xl);
  padding-top: var(--ct-space-xl);
  border-top: 1px solid var(--ct-border);
}
.ct-seo-content section {
  margin-bottom: var(--ct-space-xl);
}
.ct-seo-content section:last-child {
  margin-bottom: 0;
}
.ct-seo-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 var(--ct-space-md);
  color: var(--ct-text);
}
.ct-seo-content p {
  color: var(--ct-text-secondary);
  line-height: 1.7;
  margin: 0;
}

.ct-how-to ol {
  margin: 0;
  padding-left: 1.5rem;
}
.ct-how-to ol li {
  margin-bottom: var(--ct-space-sm);
  color: var(--ct-text-secondary);
  line-height: 1.6;
}
.ct-how-to ol li::marker {
  color: var(--ct-primary);
  font-weight: 600;
}

.ct-about-tool p {
  max-width: 75ch;
}

.ct-faq .ct-faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--ct-space-md);
}
.ct-faq .ct-faq-item {
  padding: var(--ct-space-md);
  background: var(--ct-bg-secondary);
  border-radius: var(--ct-radius-md);
  border-left: 3px solid var(--ct-primary);
}
.ct-faq .ct-faq-item h3 {
  margin: 0 0 var(--ct-space-sm);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ct-text);
}
.ct-faq .ct-faq-item p {
  margin: 0;
  font-size: 0.9375rem;
}

.ct-related-tools {
  margin-top: var(--ct-space-2xl);
  padding-top: var(--ct-space-xl);
  border-top: 1px solid var(--ct-border);
}
.ct-related-tools h2 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--ct-space-md);
  color: var(--ct-text);
}

.ct-ad {
  padding: var(--ct-space-md);
  background: var(--ct-bg-secondary);
  border: 1px dashed var(--ct-border);
  border-radius: var(--ct-radius-md);
  text-align: center;
  color: var(--ct-text-muted);
  font-size: 0.75rem;
}
.premium-user .ct-ad {
  display: none;
}

.ct-ad-sidebar {
  margin-top: var(--ct-space-lg);
}

.ct-ad-footer {
  margin-top: var(--ct-space-xl);
}

.ct-cookie-consent {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ct-bg);
  border-top: 1px solid var(--ct-border);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
  padding: var(--ct-space-md);
  z-index: 1000;
}
.ct-cookie-consent .ct-cookie-content {
  max-width: var(--ct-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ct-space-md);
  flex-wrap: wrap;
}
.ct-cookie-consent .ct-cookie-content p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--ct-text-secondary);
}
.ct-cookie-consent .ct-cookie-content p a {
  color: var(--ct-primary);
  text-decoration: none;
}
.ct-cookie-consent .ct-cookie-content p a:hover {
  text-decoration: underline;
}
.ct-cookie-consent .ct-cookie-actions {
  display: flex;
  gap: var(--ct-space-sm);
  flex-shrink: 0;
}

.ct-error-page {
  text-align: center;
  padding: var(--ct-space-2xl) 0;
}

.ct-error-content {
  margin-bottom: var(--ct-space-2xl);
}
.ct-error-content h1 {
  font-size: 6rem;
  font-weight: 700;
  color: var(--ct-primary);
  margin: 0;
  line-height: 1;
}
.ct-error-content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: var(--ct-space-sm) 0 var(--ct-space-md);
  color: var(--ct-text);
}
.ct-error-content p {
  color: var(--ct-text-secondary);
  margin-bottom: var(--ct-space-lg);
}

.ct-error-actions {
  display: flex;
  gap: var(--ct-space-md);
  justify-content: center;
}

.ct-error-suggestions {
  margin-top: var(--ct-space-2xl);
  padding-top: var(--ct-space-xl);
  border-top: 1px solid var(--ct-border);
  text-align: left;
}
.ct-error-suggestions h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--ct-space-md);
  text-align: center;
}

.ct-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  margin-left: var(--ct-space-sm);
  background: transparent;
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius);
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.15s, border-color 0.15s;
}
.ct-theme-toggle:hover {
  background: var(--ct-bg-secondary);
  border-color: var(--ct-primary);
}
.ct-theme-toggle:focus {
  outline: 2px solid var(--ct-primary);
  outline-offset: 2px;
}

.ct-theme-toggle-light {
  display: block;
}

.ct-theme-toggle-dark {
  display: none;
}

[data-theme=dark] .ct-theme-toggle-light {
  display: none;
}
[data-theme=dark] .ct-theme-toggle-dark {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme=light]) .ct-theme-toggle-light {
    display: none;
  }
  :root:not([data-theme=light]) .ct-theme-toggle-dark {
    display: block;
  }
}
.ct-logo-icon {
  vertical-align: middle;
  margin-right: 6px;
}

@media (max-width: 768px) {
  .ct-header .ct-nav {
    display: none;
  }
  .ct-hero h1 {
    font-size: 1.75rem;
  }
  .ct-footer .ct-container {
    flex-direction: column;
    text-align: center;
  }
  .ct-cookie-consent .ct-cookie-content {
    flex-direction: column;
    text-align: center;
  }
  .ct-error-content h1 {
    font-size: 4rem;
  }
}