/* ============================================
   OneDevKit - CSS Framework
   Production-ready, SEO-optimized, accessible
   ============================================ */

/* CSS Custom Properties (Variables) */
:root {
  /* Colors - Light Mode */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-secondary: #64748b;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-elevated: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;

  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-toast: 400;

  /* Container */
  --container-max: 1200px;
  --container-padding: var(--space-4);
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f172a;
    --color-bg-alt: #1e293b;
    --color-bg-elevated: #1e293b;
    --color-text: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    --color-border: #334155;
    --color-border-hover: #475569;
    --color-primary-light: #1e3a5f;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
  }
}

/* Manual dark mode toggle support */
[data-theme="dark"] {
  --color-bg: #0f172a;
  --color-bg-alt: #1e293b;
  --color-bg-elevated: #1e293b;
  --color-text: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-border: #334155;
  --color-border-hover: #475569;
  --color-primary-light: #1e3a5f;
}

[data-theme="light"] {
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-elevated: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  --color-primary-light: #dbeafe;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Skip to content link - Accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  z-index: var(--z-modal);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-6);
}

h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

h3 {
  font-size: var(--text-xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Focus styles - Accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

code, pre {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

code {
  background: var(--color-bg-alt);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

pre {
  background: var(--color-bg-alt);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
}

ul, ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

li {
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

/* ============================================
   Layout Components
   ============================================ */

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

.container-narrow {
  max-width: 900px;
}

.main-content {
  flex: 1;
  padding: var(--space-8) 0;
}

/* Header */
.header {
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logo:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav-link[aria-current="page"] {
  color: var(--color-primary);
}

/* Dropdown Menu */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--color-text-secondary);
  font-weight: 500;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-size: inherit;
  font-family: inherit;
  transition: color var(--transition-fast);
}

.nav-dropdown-toggle:hover {
  color: var(--color-primary);
}

.nav-dropdown-toggle svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-toggle svg,
.nav-dropdown:focus-within .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
  z-index: var(--z-dropdown);
  margin-top: var(--space-2);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown-menu a {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-dropdown-menu a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
  text-decoration: none;
}

.nav-dropdown-menu a small {
  display: block;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  margin-top: 2px;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-text);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  display: block;
}

/* Footer */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--space-10) 0;
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
}

.footer-section h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

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

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copyright {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================
   Tool Card Grid (Homepage)
   ============================================ */

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.tool-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
  display: block;
}

.tool-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}

.tool-card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

.tool-card-icon svg {
  width: 24px;
  height: 24px;
}

.tool-card h3 {
  font-size: var(--text-lg);
  margin: 0 0 var(--space-2) 0;
  color: var(--color-text);
}

.tool-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.tool-card-title {
  font-size: var(--text-lg);
  margin: 0 0 var(--space-2) 0;
  color: var(--color-text);
}

.tool-card-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

/* Tools Grid - for Related Tools sections */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.tools-grid-small {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

/* Features Grid - for feature cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.feature-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.feature-card .feature-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}

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

.feature-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  margin: 0 0 var(--space-2) 0;
  color: var(--color-text);
}

.feature-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: var(--line-height-relaxed);
}

/* ============================================
   Tool Page Layout
   ============================================ */

.tool-page {
  max-width: 900px;
}

.tool-section {
  padding: var(--space-8) 0;
}

.tool-section > .container {
  max-width: 900px;
}

.tool-header {
  margin-bottom: var(--space-8);
}

.tool-header h1 {
  margin-bottom: var(--space-3);
}

.tool-description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 65ch;
}

/* Tool Container */
.tool-container {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-bottom: var(--space-8);
}

.tool-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.tool-input-group {
  flex: 1;
  min-width: 200px;
}

.tool-input-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

/* Tool Output Area */
.tool-output {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  min-height: 120px;
  position: relative;
}

.tool-output-text {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  word-break: break-all;
  white-space: pre-wrap;
}

.tool-output-placeholder {
  color: var(--color-text-muted);
  font-style: italic;
}

/* Tool Textarea */
.tool-textarea {
  width: 100%;
  min-height: 200px;
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.6;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  resize: vertical;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tool-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.tool-textarea::placeholder {
  color: var(--color-text-muted);
}

/* Tool Options */
.tool-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.option-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.option-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.tool-select {
  min-width: 150px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.tool-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* Tool Actions */
.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
  margin-bottom: var(--space-5);
}

/* Tool Output Group */
.tool-output-group {
  margin-top: var(--space-4);
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.output-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.input-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-2);
}

.input-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.input-hint {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* ============================================
   Form Elements
   ============================================ */

input[type="text"],
input[type="email"],
input[type="number"],
input[type="url"],
textarea,
select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:hover,
textarea:hover,
select:hover {
  border-color: var(--color-border-hover);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  outline: none;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* Range input */
input[type="range"] {
  width: 100%;
  height: 6px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  background: var(--color-primary);
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

/* Checkbox & Radio */
.checkbox-group,
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.checkbox-label,
.radio-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

input[type="checkbox"],
input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 500;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px; /* Touch target size */
  min-width: 44px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn svg {
  width: 18px;
  height: 18px;
}

/* Primary button */
.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  text-decoration: none;
}

/* Secondary button */
.btn-secondary {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-border);
  text-decoration: none;
}

/* Ghost button */
.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg-alt);
  color: var(--color-text);
  text-decoration: none;
}

/* Icon only button */
.btn-icon {
  padding: var(--space-3);
}

/* Button sizes */
.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  min-height: 36px;
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-base);
}

/* ============================================
   Alerts & Messages
   ============================================ */

.alert {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.alert svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.alert-success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.alert-warning {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.alert-info {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

/* Toast notification */
.toast {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-toast);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transform: translateY(100px);
  opacity: 0;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

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

.toast-error {
  background: var(--color-error);
}

/* ============================================
   Cookie Consent Banner
   ============================================ */

/* Cookie Banner - Prominent but non-blocking */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  top: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.cookie-banner.show {
  opacity: 1;
  visibility: visible;
}

.cookie-banner-inner {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  max-width: 500px;
  width: 100%;
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  text-align: center;
  transform: translateY(20px);
  transition: transform var(--transition-slow);
}

.cookie-banner.show .cookie-banner-inner {
  transform: translateY(0);
}

.cookie-banner-title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.cookie-banner-icon {
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}

.cookie-banner-icon svg {
  width: 48px;
  height: 48px;
}

.cookie-banner-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-5);
}

.cookie-banner-text a {
  color: var(--color-primary);
  text-decoration: underline;
}

.cookie-banner-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}

.cookie-banner-actions .btn {
  min-width: 100px;
}

/* ============================================
   Content Sections
   ============================================ */

.content-section {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.content-section:first-of-type {
  margin-top: var(--space-8);
  padding-top: 0;
  border-top: none;
}

/* Steps Component */
.steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.step {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  font-weight: 600;
  font-size: var(--text-lg);
  border-radius: 50%;
}

.step-content h3 {
  margin: 0 0 var(--space-2) 0;
  font-size: var(--text-lg);
  font-weight: 600;
}

.step-content p {
  margin: 0;
  color: var(--color-text-secondary);
}

/* FAQ Section */
.faq-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

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

.faq-question {
  width: 100%;
  padding: var(--space-4) 0;
  background: none;
  border: none;
  text-align: left;
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-question svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 0 var(--space-4) 0;
  color: var(--color-text-secondary);
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* Features list */
.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
  list-style: none;
  padding: 0;
  margin: var(--space-6) 0;
}

.feature-item {
  display: flex;
  gap: var(--space-3);
}

.feature-icon {
  width: 24px;
  height: 24px;
  color: var(--color-success);
  flex-shrink: 0;
}

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

/* Related tools */
.related-tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.related-tool-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.related-tool-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  text-decoration: none;
}

/* ============================================
   Breadcrumbs
   ============================================ */

.breadcrumb,
.breadcrumbs {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  padding: var(--space-4) 0;
}

.breadcrumb ol,
.breadcrumbs ol {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb li,
.breadcrumbs li {
  display: flex;
  align-items: center;
}

.breadcrumb li:not(:last-child)::after,
.breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: var(--space-2);
  color: var(--color-text-muted);
}

.breadcrumb a,
.breadcrumbs a {
  color: var(--color-primary);
  text-decoration: none;
}

.breadcrumb a:hover,
.breadcrumbs a:hover {
  text-decoration: underline;
}

.breadcrumb span,
.breadcrumbs span {
  color: var(--color-text-secondary);
}

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

/* ============================================
   Loading States
   ============================================ */

.loading {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ============================================
   Utilities
   ============================================ */

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

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mb-0 {
  margin-bottom: 0;
}

.mt-0 {
  margin-top: 0;
}

.hidden {
  display: none !important;
}

/* ============================================
   Mobile Responsive
   ============================================ */

@media (max-width: 768px) {
  :root {
    --text-4xl: 1.875rem;
    --text-3xl: 1.5rem;
    --text-2xl: 1.25rem;
    --container-padding: var(--space-4);
  }

  .header-inner {
    height: 56px;
  }

  .nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--space-4);
    gap: var(--space-4);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: block;
  }

  .tool-grid {
    grid-template-columns: 1fr;
  }

  .tool-controls {
    flex-direction: column;
  }

  .tool-actions {
    flex-direction: column;
  }

  .tool-actions .btn {
    width: 100%;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .cookie-banner-inner {
    flex-direction: column;
    text-align: center;
  }

  .cookie-banner-actions {
    width: 100%;
    justify-content: center;
  }

  .toast {
    left: var(--space-4);
    right: var(--space-4);
    bottom: var(--space-4);
  }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  .header,
  .footer,
  .cookie-banner,
  .toast,
  .nav-toggle,
  .theme-toggle,
  .btn,
  .tool-actions {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .main-content {
    padding: 0;
  }

  a {
    color: black;
    text-decoration: underline;
  }

  .tool-container {
    border: 1px solid #ccc;
  }
}

/* ============================================
   Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}