:root {
  /* Enhanced Primitive Color Tokens - WCAG AA Compliant */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  
  /* Modern neutral palette with better contrast */
  --color-neutral-50: rgba(250, 250, 250, 1);
  --color-neutral-100: rgba(244, 244, 245, 1);
  --color-neutral-200: rgba(228, 228, 231, 1);
  --color-neutral-300: rgba(212, 212, 216, 1);
  --color-neutral-400: rgba(161, 161, 170, 1);
  --color-neutral-500: rgba(113, 113, 122, 1);
  --color-neutral-600: rgba(82, 82, 91, 1);
  --color-neutral-700: rgba(63, 63, 70, 1);
  --color-neutral-800: rgba(39, 39, 42, 1);
  --color-neutral-900: rgba(24, 24, 27, 1);
  
  /* Enhanced primary palette - Modern blue with excellent contrast */
  --color-blue-50: rgba(239, 246, 255, 1);
  --color-blue-100: rgba(219, 234, 254, 1);
  --color-blue-200: rgba(191, 219, 254, 1);
  --color-blue-300: rgba(147, 197, 253, 1);
  --color-blue-400: rgba(96, 165, 250, 1);
  --color-blue-500: rgba(59, 130, 246, 1);
  --color-blue-600: rgba(37, 99, 235, 1);
  --color-blue-700: rgba(29, 78, 216, 1);
  --color-blue-800: rgba(30, 64, 175, 1);
  --color-blue-900: rgba(30, 58, 138, 1);
  
  /* Enhanced accent colors with better accessibility */
  --color-emerald-500: rgba(16, 185, 129, 1);
  --color-emerald-600: rgba(5, 150, 105, 1);
  --color-emerald-700: rgba(4, 120, 87, 1);
  --color-red-500: rgba(239, 68, 68, 1);
  --color-red-600: rgba(220, 38, 38, 1);
  --color-amber-500: rgba(245, 158, 11, 1);
  --color-amber-600: rgba(217, 119, 6, 1);

  /* RGB versions for opacity control */
  --color-neutral-600-rgb: 82, 82, 91;
  --color-neutral-700-rgb: 63, 63, 70;
  --color-neutral-900-rgb: 24, 24, 27;
  --color-blue-500-rgb: 59, 130, 246;
  --color-blue-600-rgb: 37, 99, 235;
  --color-blue-700-rgb: 29, 78, 216;
  --color-emerald-500-rgb: 16, 185, 129;
  --color-emerald-600-rgb: 5, 150, 105;
  --color-red-500-rgb: 239, 68, 68;
  --color-red-600-rgb: 220, 38, 38;
  --color-amber-500-rgb: 245, 158, 11;
  --color-amber-600-rgb: 217, 119, 6;

  /* Enhanced background color tokens (Light Mode) */
  --color-bg-1: rgba(59, 130, 246, 0.06); /* Subtle blue */
  --color-bg-2: rgba(245, 158, 11, 0.06); /* Subtle amber */
  --color-bg-3: rgba(16, 185, 129, 0.06); /* Subtle emerald */
  --color-bg-4: rgba(239, 68, 68, 0.06); /* Subtle red */
  --color-bg-5: rgba(147, 51, 234, 0.06); /* Subtle purple */
  --color-bg-6: rgba(249, 115, 22, 0.06); /* Subtle orange */
  --color-bg-7: rgba(236, 72, 153, 0.06); /* Subtle pink */
  --color-bg-8: rgba(6, 182, 212, 0.06); /* Subtle cyan */

  /* Enhanced Semantic Color Tokens (Light Mode) - WCAG AA Compliant */
  --color-background: var(--color-neutral-50);
  --color-surface: var(--color-white);
  --color-text: var(--color-neutral-900);
  --color-text-secondary: var(--color-neutral-600);
  --color-primary: rgba(0, 0, 114, 1);
  --color-primary-hover: rgba(0, 0, 138, 1);
  --color-primary-active: rgba(0, 0, 96, 1);
  --color-secondary: rgba(var(--color-neutral-600-rgb), 0.08);
  --color-secondary-hover: rgba(var(--color-neutral-600-rgb), 0.12);
  --color-secondary-active: rgba(var(--color-neutral-600-rgb), 0.16);
  --color-border: var(--color-neutral-200);
  --color-btn-primary-text: var(--color-white);
  --color-card-border: var(--color-neutral-200);
  --color-card-border-inner: var(--color-neutral-100);
  --color-error: var(--color-red-600);
  --color-success: var(--color-emerald-600);
  --color-warning: var(--color-amber-600);
  --color-info: var(--color-neutral-600);
  --color-focus-ring: rgba(0, 0, 114, 0.3);
  --color-select-caret: rgba(var(--color-neutral-900-rgb), 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: var(--color-emerald-600-rgb);
  --color-error-rgb: var(--color-red-600-rgb);
  --color-warning-rgb: var(--color-amber-600-rgb);
  --color-info-rgb: var(--color-neutral-600-rgb);

  /* Typography */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    /* Enhanced RGB versions for opacity control (Dark Mode) */
    --color-neutral-300-rgb: 212, 212, 216;
    --color-neutral-400-rgb: 161, 161, 170;
    --color-blue-400-rgb: 96, 165, 250;
    --color-blue-500-rgb: 59, 130, 246;

    /* Enhanced background color tokens (Dark Mode) */
    --color-bg-1: rgba(59, 130, 246, 0.12); /* Enhanced blue */
    --color-bg-2: rgba(245, 158, 11, 0.12); /* Enhanced amber */
    --color-bg-3: rgba(16, 185, 129, 0.12); /* Enhanced emerald */
    --color-bg-4: rgba(239, 68, 68, 0.12); /* Enhanced red */
    --color-bg-5: rgba(147, 51, 234, 0.12); /* Enhanced purple */
    --color-bg-6: rgba(249, 115, 22, 0.12); /* Enhanced orange */
    --color-bg-7: rgba(236, 72, 153, 0.12); /* Enhanced pink */
    --color-bg-8: rgba(6, 182, 212, 0.12); /* Enhanced cyan */

    /* Enhanced Semantic Color Tokens (Dark Mode) - WCAG AA Compliant */
    --color-background: var(--color-neutral-900);
    --color-surface: var(--color-neutral-800);
    --color-text: var(--color-neutral-100);
    --color-text-secondary: var(--color-neutral-400);
  --color-primary: rgba(0, 0, 114, 1);
  --color-primary-hover: rgba(0, 0, 138, 1);
  --color-primary-active: rgba(0, 0, 96, 1);
    --color-secondary: rgba(var(--color-neutral-400-rgb), 0.12);
    --color-secondary-hover: rgba(var(--color-neutral-400-rgb), 0.18);
    --color-secondary-active: rgba(var(--color-neutral-400-rgb), 0.24);
    --color-border: var(--color-neutral-700);
    --color-error: var(--color-red-500);
    --color-success: var(--color-emerald-500);
    --color-warning: var(--color-amber-500);
    --color-info: var(--color-neutral-400);
  --color-focus-ring: rgba(0, 0, 114, 0.3);
    --color-btn-primary-text: var(--color-neutral-900);
    --color-card-border: var(--color-neutral-700);
    --color-card-border-inner: var(--color-neutral-800);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
      inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --button-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

    /* Common style patterns - updated for dark mode */
    --focus-ring: 0 0 0 3px var(--color-focus-ring);
    --focus-outline: 2px solid var(--color-primary);
    --status-bg-opacity: 0.15;
    --status-border-opacity: 0.25;
    --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

    /* RGB versions for dark mode */
    --color-success-rgb: var(--color-emerald-500-rgb);
    --color-error-rgb: var(--color-red-500-rgb);
    --color-warning-rgb: var(--color-amber-500-rgb);
    --color-info-rgb: var(--color-neutral-400-rgb);
  }
}

/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  /* Enhanced RGB versions for opacity control (dark mode) */
  --color-neutral-300-rgb: 212, 212, 216;
  --color-neutral-400-rgb: 161, 161, 170;
  --color-blue-400-rgb: 96, 165, 250;
  --color-blue-500-rgb: 59, 130, 246;

  /* Enhanced background palette - Dark Mode */
  --color-bg-1: rgba(59, 130, 246, 0.12); /* Enhanced blue */
  --color-bg-2: rgba(245, 158, 11, 0.12); /* Enhanced amber */
  --color-bg-3: rgba(16, 185, 129, 0.12); /* Enhanced emerald */
  --color-bg-4: rgba(239, 68, 68, 0.12); /* Enhanced red */
  --color-bg-5: rgba(147, 51, 234, 0.12); /* Enhanced purple */
  --color-bg-6: rgba(249, 115, 22, 0.12); /* Enhanced orange */
  --color-bg-7: rgba(236, 72, 153, 0.12); /* Enhanced pink */
  --color-bg-8: rgba(6, 182, 212, 0.12); /* Enhanced cyan */

  /* Enhanced Semantic Color Tokens (Dark Mode) - WCAG AA Compliant */
  --color-background: var(--color-neutral-900);
  --color-surface: var(--color-neutral-800);
  --color-text: var(--color-neutral-100);
  --color-text-secondary: var(--color-neutral-400);
  --color-primary: rgba(0, 0, 114, 1);
  --color-primary-hover: rgba(0, 0, 138, 1);
  --color-primary-active: rgba(0, 0, 96, 1);
  --color-secondary: rgba(var(--color-neutral-400-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-neutral-400-rgb), 0.18);
  --color-secondary-active: rgba(var(--color-neutral-400-rgb), 0.24);
  --color-border: var(--color-neutral-700);
  --color-error: var(--color-red-500);
  --color-success: var(--color-emerald-500);
  --color-warning: var(--color-amber-500);
  --color-info: var(--color-neutral-400);
  --color-focus-ring: rgba(0, 0, 114, 0.3);
  --color-btn-primary-text: var(--color-neutral-900);
  --color-card-border: var(--color-neutral-700);
  --color-card-border-inner: var(--color-neutral-800);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  --color-border-secondary: var(--color-neutral-600);
  --color-select-caret: rgba(var(--color-neutral-300-rgb), 0.8);

  /* Common style patterns - updated for dark mode */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* Enhanced RGB versions for dark mode */
  --color-success-rgb: var(--color-emerald-500-rgb);
  --color-error-rgb: var(--color-red-500-rgb);
  --color-warning-rgb: var(--color-amber-500-rgb);
  --color-info-rgb: var(--color-neutral-400-rgb);
}

[data-color-scheme="light"] {
  /* Enhanced RGB versions for opacity control (light mode) */
  --color-neutral-600-rgb: 82, 82, 91;
  --color-blue-600-rgb: 37, 99, 235;
  --color-neutral-900-rgb: 24, 24, 27;

  /* Enhanced Semantic Color Tokens (Light Mode) - WCAG AA Compliant */
  --color-background: var(--color-neutral-50);
  --color-surface: var(--color-neutral-100);
  --color-text: var(--color-neutral-900);
  --color-text-secondary: var(--color-neutral-600);
  --color-primary: rgba(0, 0, 114, 1);
  --color-primary-hover: rgba(0, 0, 138, 1);
  --color-primary-active: rgba(0, 0, 96, 1);
  --color-secondary: rgba(var(--color-neutral-600-rgb), 0.08);
  --color-secondary-hover: rgba(var(--color-neutral-600-rgb), 0.12);
  --color-secondary-active: rgba(var(--color-neutral-600-rgb), 0.16);
  --color-border: var(--color-neutral-300);
  --color-btn-primary-text: var(--color-neutral-50);
  --color-card-border: var(--color-neutral-200);
  --color-card-border-inner: var(--color-neutral-200);
  --color-error: var(--color-red-600);
  --color-success: var(--color-emerald-600);
  --color-warning: var(--color-amber-600);
  --color-info: var(--color-neutral-600);
  --color-focus-ring: rgba(0, 0, 114, 0.3);

  /* Enhanced RGB versions for light mode */
  --color-success-rgb: var(--color-emerald-600-rgb);
  --color-error-rgb: var(--color-red-600-rgb);
  --color-warning-rgb: var(--color-amber-600-rgb);
  --color-info-rgb: var(--color-neutral-600-rgb);
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-md);
}

p {
  margin: 0 0 var(--space-16) 0;
}

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

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

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

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

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

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

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

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

.btn--secondary:active {
  background: var(--color-secondary-active);
}

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

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

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

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* Status indicators - simplified with CSS variables */
.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(
    var(--color-success-rgb, 33, 128, 141),
    var(--status-bg-opacity)
  );
  color: var(--color-success);
  border: 1px solid
    rgba(var(--color-success-rgb, 33, 128, 141), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(
    var(--color-error-rgb, 192, 21, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-error);
  border: 1px solid
    rgba(var(--color-error-rgb, 192, 21, 47), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(
    var(--color-warning-rgb, 168, 75, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-warning);
  border: 1px solid
    rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(
    var(--color-info-rgb, 98, 108, 113),
    var(--status-bg-opacity)
  );
  color: var(--color-info);
  border: 1px solid
    rgba(var(--color-info-rgb, 98, 108, 113), var(--status-border-opacity));
}

/* Container layout */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Utility classes */
.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-4 {
  gap: var(--space-4);
}
.gap-8 {
  gap: var(--space-8);
}
.gap-16 {
  gap: var(--space-16);
}

.m-0 {
  margin: 0;
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.mx-8 {
  margin-left: var(--space-8);
  margin-right: var(--space-8);
}
.my-8 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.p-0 {
  padding: 0;
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}
.px-8 {
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}
.py-16 {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}
.px-16 {
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

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

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2')
    format('woff2');
}

/* END PERPLEXITY DESIGN SYSTEM */
:root {
  /* Primitive Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-200: rgba(245, 245, 245, 1);
  --color-gray-300: rgba(167, 169, 169, 1);
  --color-gray-400: rgba(119, 124, 124, 1);
  --color-slate-500: rgba(98, 108, 113, 1);
  --color-brown-600: rgba(94, 82, 64, 1);
  --color-charcoal-700: rgba(31, 33, 33, 1);
  --color-charcoal-800: rgba(38, 40, 40, 1);
  --color-slate-900: rgba(19, 52, 59, 1);
  --color-teal-300: rgba(50, 184, 198, 1);
  --color-teal-400: rgba(45, 166, 178, 1);
  --color-teal-500: rgba(33, 128, 141, 1);
  --color-teal-600: rgba(29, 116, 128, 1);
  --color-teal-700: rgba(26, 104, 115, 1);
  --color-teal-800: rgba(41, 150, 161, 1);
  --color-red-400: rgba(255, 84, 89, 1);
  --color-red-500: rgba(192, 21, 47, 1);
  --color-orange-400: rgba(230, 129, 97, 1);
  --color-orange-500: rgba(168, 75, 47, 1);

  /* RGB versions for opacity control */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  --color-slate-500-rgb: 98, 108, 113;
  --color-red-500-rgb: 192, 21, 47;
  --color-red-400-rgb: 255, 84, 89;
  --color-orange-500-rgb: 168, 75, 47;
  --color-orange-400-rgb: 230, 129, 97;

  /* Background color tokens */
  --color-bg-1: rgba(59, 130, 246, 0.08);
  --color-bg-2: rgba(245, 158, 11, 0.08);
  --color-bg-3: rgba(34, 197, 94, 0.08);
  --color-bg-4: rgba(239, 68, 68, 0.08);

  /* Semantic Color Tokens (updated to darker blue palette) */
  --color-background: var(--color-neutral-50);
  --color-surface: var(--color-neutral-100);
  --color-text: var(--color-neutral-900);
  --color-text-secondary: var(--color-neutral-600);
  --color-primary: rgba(0, 0, 114, 1);
  --color-primary-hover: rgba(0, 0, 138, 1);
  --color-primary-active: rgba(0, 0, 96, 1);
  --color-secondary: rgba(var(--color-neutral-600-rgb), 0.08);
  --color-secondary-hover: rgba(var(--color-neutral-600-rgb), 0.12);
  --color-secondary-active: rgba(var(--color-neutral-600-rgb), 0.16);
  --color-border: var(--color-neutral-300);
  --color-btn-primary-text: var(--color-white);
  --color-card-border: var(--color-neutral-200);
  --color-card-border-inner: var(--color-neutral-200);
  --color-error: var(--color-red-600);
  --color-success: var(--color-emerald-600);
  --color-warning: var(--color-amber-600);
  --color-info: var(--color-neutral-600);
  --color-focus-ring: rgba(0, 0, 114, 0.3);

  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-48: 48px;
  --space-64: 64px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --sidebar-width: 280px;
  --header-height: 64px;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Enhanced Semantic Color Tokens (Dark Mode) */
    --color-background: var(--color-neutral-900);
    --color-surface: var(--color-neutral-800);
    --color-text: var(--color-neutral-100);
    --color-text-secondary: var(--color-neutral-400);
    --color-primary: var(--color-blue-400);
    --color-primary-hover: var(--color-blue-300);
    --color-primary-active: var(--color-blue-500);
    --color-secondary: rgba(var(--color-neutral-400-rgb), 0.12);
    --color-secondary-hover: rgba(var(--color-neutral-400-rgb), 0.18);
    --color-secondary-active: rgba(var(--color-neutral-400-rgb), 0.24);
    --color-border: var(--color-neutral-700);
    --color-error: var(--color-red-500);
    --color-success: var(--color-emerald-500);
    --color-warning: var(--color-amber-500);
    --color-info: var(--color-neutral-400);
    --color-focus-ring: rgba(var(--color-blue-400-rgb), 0.3);
    --color-btn-primary-text: var(--color-neutral-900);
    --color-card-border: var(--color-neutral-700);
    --color-card-border-inner: var(--color-neutral-800);
  }
}

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

html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
}

body {
  background-color: var(--color-background);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-16);
  z-index: 10000;
  padding: var(--space-12) var(--space-20);
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  text-decoration: none;
  border-radius: var(--radius-base);
  font-weight: var(--font-weight-medium);
}

.skip-link:focus {
  top: var(--space-16);
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 2px;
}

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

/* App Container */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background-color: var(--color-surface);
  border-right: 1px solid var(--color-border);
  /* Use flex layout to anchor footer to bottom */
  display: flex;
  flex-direction: column;
  /* Let the nav scroll, not the entire sidebar */
  overflow-y: hidden;
  z-index: 1000;
  transform: translateX(-100%);
  transition: transform var(--duration-normal) var(--ease-standard);
}

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

/* Remove forced open state on desktop; sidebar opens via .open class */

.sidebar-nav {
  padding: var(--space-24) 0;
  /* Fill available height and enable internal scrolling */
  flex: 1;
  overflow-y: auto;
}

/* Sidebar Footer */
.sidebar-footer {
  position: sticky;
  bottom: 0;
  flex-shrink: 0;
  padding: var(--space-16) var(--space-24);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.user-row {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-8);
}

.user-display {
  flex: 0 0 auto;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-menu {
  list-style: none;
}

.nav-link {
  display: flex;
  align-items: center;
  width: 100%;
  padding: var(--space-12) var(--space-24);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  transition: background-color var(--duration-fast) var(--ease-standard);
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.nav-link:hover,
.nav-link:focus {
  background-color: var(--color-secondary);
  outline: none;
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.nav-link.active {
  background-color: var(--color-bg-1);
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.nav-icon {
  margin-right: var(--space-12);
  width: 24px;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

.nav-text {
  flex: 1;
}

.expand-icon {
  margin-left: var(--space-8);
  transition: transform var(--duration-fast) var(--ease-standard);
  display: inline-flex;
  align-items: center;
}

.expand-icon svg {
  width: 16px;
  height: 16px;
}

.expand-icon svg line {
  transition: opacity var(--duration-fast) var(--ease-standard);
}

.nav-expandable[aria-expanded="true"] .expand-icon svg line:first-child {
  opacity: 0;
}

.submenu {
  list-style: none;
  background-color: var(--color-bg-2);
}

.submenu-link {
  padding-left: var(--space-64);
  font-size: var(--font-size-sm);
}

/* Main Wrapper */
.main-wrapper {
  flex: 1;
  margin-left: 0;
  transition: margin-left var(--duration-normal) var(--ease-standard);
}

@media (min-width: 768px) {
  /* Only shift content when sidebar is open */
  .sidebar.open + .main-wrapper {
    margin-left: var(--sidebar-width);
  }
}

/* App Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  height: var(--header-height);
  padding: 0 var(--space-24);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-16);
}

.sidebar-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-base);
  cursor: pointer;
  padding: var(--space-8);
  transition: border-color var(--duration-fast) var(--ease-standard);
}

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

.sidebar-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-color: var(--color-primary);
}

@media (min-width: 768px) {
  /* Keep toggle visible on desktop to allow collapsing */
  .sidebar-toggle {
    display: flex;
  }
}

.hamburger-icon {
  width: 24px;
  height: 24px;
}

.app-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

@media (max-width: 767px) {
  .app-title {
    font-size: var(--font-size-lg);
  }
}

/* Main Content */
.main-content {
  padding: var(--space-32) var(--space-24);
  max-width: 1400px;
  margin: 0 auto;
}

.main-content:focus {
  outline: none;
}

/* Page Content */
.page-content {
  display: none;
}

.page-content.active {
  display: block;
}

.page-header {
  margin-bottom: var(--space-32);
}

.page-header h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-8);
  color: var(--color-text);
}

.page-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

/* Placeholder Content */
.placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  text-align: center;
  padding: var(--space-48);
}

.placeholder-content h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.coming-soon {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-24);
}

.placeholder-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
}

/* Controls Section */
.controls-section {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  margin-bottom: var(--space-24);
}

.search-wrapper {
  margin-bottom: var(--space-24);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.form-control {
  width: 100%;
  padding: var(--space-12);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.form-control:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 0;
  border-color: var(--color-primary);
}

.search-input {
  font-size: var(--font-size-lg);
  padding: var(--space-16);
}

.filters-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-16);
  margin-bottom: var(--space-16);
}

@media (max-width: 767px) {
  .filters-wrapper {
    grid-template-columns: 1fr;
  }
}

.filter-group {
  display: flex;
  flex-direction: column;
}

.controls-actions {
  display: flex;
  gap: var(--space-12);
  justify-content: flex-end;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-20);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  min-height: 44px;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

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

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

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

/* Results Summary */
.results-summary {
  margin-bottom: var(--space-16);
  padding: var(--space-12) 0;
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.results-summary strong {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

/* Issues Section */
.issues-section {
  margin-top: var(--space-24);
}

.issues-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.issue-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

.issue-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.issue-card:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.issue-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-16);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

.issue-id {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  font-family: monospace;
}

.issue-badges {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border: 1px solid;
}

.badge-level-a {
  background-color: var(--color-bg-3);
  color: var(--color-success);
  border-color: var(--color-success);
}

.badge-level-aa {
  background-color: var(--color-bg-1);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.badge-level-aaa {
  background-color: var(--color-bg-4);
  color: var(--color-warning);
  border-color: var(--color-warning);
}

.badge-severity-critical {
  background-color: rgba(var(--color-red-500-rgb), 0.1);
  color: var(--color-error);
  border-color: var(--color-error);
}

.badge-severity-high {
  background-color: rgba(var(--color-orange-500-rgb), 0.1);
  color: var(--color-warning);
  border-color: var(--color-warning);
}

.badge-severity-medium {
  background-color: var(--color-bg-2);
  color: var(--color-info);
  border-color: var(--color-info);
}

.badge-severity-low {
  background-color: var(--color-bg-3);
  color: var(--color-success);
  border-color: var(--color-success);
}

.badge-status-open {
  background-color: var(--color-bg-1);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.badge-status-in-progress {
  background-color: var(--color-bg-2);
  color: var(--color-warning);
  border-color: var(--color-warning);
}

.badge-status-closed {
  background-color: var(--color-bg-3);
  color: var(--color-success);
  border-color: var(--color-success);
}

.badge-status-needs-review {
  background-color: var(--color-bg-4);
  color: var(--color-error);
  border-color: var(--color-error);
}

.issue-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.issue-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.issue-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.no-results {
  text-align: center;
  padding: var(--space-48);
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

/* HTML Support Page */
.sr-results-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
}

@media (min-width: 768px) {
  .sr-results-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.sr-result-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.sr-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

.sr-result-body {
  padding: var(--space-16);
}

/* Accordion - WCAG Success Criteria */
.accordion-group {
  background-color: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.accordion-group + .accordion-group {
  margin-top: var(--space-16);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--space-12);
  padding: var(--space-16) var(--space-20);
  background: linear-gradient(
    180deg,
    rgba(var(--color-neutral-300-rgb, 82, 82, 91), 0.08) 0%,
    rgba(var(--color-neutral-300-rgb, 82, 82, 91), 0.02) 100%
  );
  color: var(--color-text);
  border: none;
  cursor: pointer;
  min-height: 44px;
  text-align: left;
  transition: background var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

.accordion-header:hover {
  background: rgba(var(--color-neutral-400-rgb), 0.12);
}

.accordion-header:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.accordion-header::after {
  content: '';
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") center / contain no-repeat;
  background-color: var(--color-text);
  transition: transform var(--duration-fast) var(--ease-standard);
}

.accordion-header[aria-expanded='true']::after {
  transform: rotate(180deg);
}

.accordion-header[aria-expanded='true'] {
  background: rgba(var(--color-primary-rgb, 0, 0, 114), 0.08);
  box-shadow: inset 0 -1px 0 var(--color-card-border-inner);
}

.accordion-header .sc-id {
  display: inline-flex;
  align-items: center;
  padding: var(--space-4) var(--space-10);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  background-color: var(--color-bg-1);
  border: 1px solid var(--color-primary);
  font-family: monospace;
}

.accordion-header .sc-name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.accordion-header .count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  padding: 0 var(--space-8);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  background-color: rgba(var(--color-info-rgb), 0.15);
  border: 1px solid rgba(var(--color-info-rgb), 0.35);
}

.accordion-panel {
  padding: var(--space-16) var(--space-20);
  background-color: var(--color-surface);
}

.accordion-panel[hidden] {
  display: none;
}

.accordion-panel .issues-list,
.accordion-panel [role='list'] {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.accordion-panel .issue-card {
  margin: 0;
}

@media (min-width: 768px) {
  .accordion-header .sc-name {
    font-size: var(--font-size-lg);
  }
}

.sr-statement {
  color: var(--color-text);
  font-size: var(--font-size-md);
}

.support-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border: 1px solid;
}

.support-indicator::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  background-color: currentColor;
}

.support-indicator[data-support="good"] {
  color: var(--color-success);
  background-color: rgba(var(--color-success-rgb), var(--status-bg-opacity));
  border-color: rgba(var(--color-success-rgb), var(--status-border-opacity));
}
.support-indicator[data-support="good"]::after {
  content: 'Good support';
}

.support-indicator[data-support="partial"] {
  color: var(--color-warning);
  background-color: rgba(var(--color-warning-rgb), var(--status-bg-opacity));
  border-color: rgba(var(--color-warning-rgb), var(--status-border-opacity));
}
.support-indicator[data-support="partial"]::after {
  content: 'Partial support';
}

.support-indicator[data-support="poor"] {
  color: var(--color-error);
  background-color: rgba(var(--color-error-rgb), var(--status-bg-opacity));
  border-color: rgba(var(--color-error-rgb), var(--status-border-opacity));
}
.support-indicator[data-support="poor"]::after {
  content: 'Poor support';
}

/* HTML Support Table */
.table-container {
  background-color: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.html-support-table {
  width: 100%;
  border-collapse: collapse;
}

.html-support-table thead th {
  text-align: left;
  padding: var(--space-12) var(--space-16);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-card-border-inner);
}

.html-support-table tbody td {
  padding: var(--space-12) var(--space-16);
  border-top: 1px solid var(--color-card-border-inner);
  vertical-align: top;
  color: var(--color-text);
}

.html-support-table tbody tr:nth-child(odd) {
  background-color: rgba(var(--color-neutral-600-rgb), 0.03);
}

.support-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border: 1px solid;
}

.support-badge--good {
  color: var(--color-success);
  background-color: rgba(var(--color-success-rgb), var(--status-bg-opacity));
  border-color: rgba(var(--color-success-rgb), var(--status-border-opacity));
}

.support-badge--partial {
  color: var(--color-warning);
  background-color: rgba(var(--color-warning-rgb), var(--status-bg-opacity));
  border-color: rgba(var(--color-warning-rgb), var(--status-border-opacity));
}

.support-badge--poor {
  color: var(--color-error);
  background-color: rgba(var(--color-error-rgb), var(--status-bg-opacity));
  border-color: rgba(var(--color-error-rgb), var(--status-border-opacity));
}

.support-indicator[data-support="poor"] {
  color: var(--color-error);
  background-color: rgba(var(--color-error-rgb), var(--status-bg-opacity));
  border-color: rgba(var(--color-error-rgb), var(--status-border-opacity));
}
.support-indicator[data-support="poor"]::after {
  content: 'Poor support';
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
}

/* Ensure hidden modal is not displayed, overriding base .modal layout */
.modal[hidden] {
  display: none !important;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-container {
  position: relative;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-24);
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.modal-close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  font-size: var(--font-size-3xl);
  color: var(--color-text);
  cursor: pointer;
  border-radius: var(--radius-base);
  transition: background-color var(--duration-fast) var(--ease-standard);
}

.modal-close:hover {
  background-color: var(--color-secondary);
}

.modal-close:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.modal-content {
  padding: var(--space-24);
  overflow-y: auto;
  flex: 1;
}

.detail-section {
  margin-bottom: var(--space-24);
}

.detail-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.detail-value {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: var(--line-height-normal);
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.tag {
  padding: var(--space-6) var(--space-12);
  background-color: var(--color-secondary);
  color: var(--color-text);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
}

/* Focus Management */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* CPACC Page Styles */
.cpacc-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-24);
}

.cpacc-overview h3 {
  color: var(--color-primary);
  margin-top: var(--space-32);
  margin-bottom: var(--space-16);
}

.cpacc-overview ul {
  margin-left: var(--space-20);
  margin-bottom: var(--space-24);
}

.cpacc-overview li {
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.pdf-link-container {
  margin-top: var(--space-24);
  text-align: center;
}

.pdf-link-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-16) var(--space-24);
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  border: none;
  border-radius: var(--radius-base);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  text-decoration: none;
  min-height: 48px;
}

.pdf-link-button:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.pdf-link-button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.pdf-link-button svg {
  flex-shrink: 0;
}

/* PDF Viewer Styles */
.pdf-viewer-container {
  margin-top: var(--space-32);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  overflow: hidden;
}

.pdf-viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-16) var(--space-24);
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
}

.pdf-viewer-header h3 {
  margin: 0;
  color: var(--color-text);
  font-size: var(--font-size-lg);
}

.close-pdf-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  border-radius: var(--radius-base);
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-standard);
}

.close-pdf-button:hover {
  background: var(--color-secondary);
  color: var(--color-text);
}

.close-pdf-button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.pdf-viewer-content {
  padding: var(--space-16);
}

.pdf-viewer-content iframe {
  width: 100%;
  height: 600px;
  border: none;
  border-radius: var(--radius-base);
}

/* Responsive adjustments for PDF viewer */
@media (max-width: 767px) {
  .cpacc-content {
    padding: var(--space-16);
  }
  
  .pdf-viewer-content iframe {
    height: 500px;
  }
  
  .pdf-link-button {
    font-size: var(--font-size-base);
    padding: var(--space-12) var(--space-20);
  }
}

/* Print Styles */
@media print {
  .sidebar,
  .sidebar-toggle,
  .controls-section,
  .modal {
    display: none;
  }

  .main-wrapper {
    margin-left: 0;
  }
}

/* Login Page (WCAG 2.2 AA Compliant) */
body.login-page {
  background: linear-gradient(
    115deg,
    rgba(var(--color-blue-600-rgb), 0.08) 0%,
    rgba(var(--color-emerald-600-rgb), 0.08) 100%
  );
  color: var(--color-text);
}

.login-layout {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space-16);
}

.login-card {
  width: 100%;
  max-width: 520px;
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(var(--color-neutral-900-rgb), 0.08);
  overflow: hidden;
}

.login-header {
  padding: var(--space-20);
  border-bottom: 1px solid var(--color-border);
}

.login-title {
  margin: 0;
  font-size: var(--font-size-2xl);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text);
}

.section-title {
  font-size: var(--font-size-lg);
  margin: 0 0 var(--space-8) 0;
  color: var(--color-text);
}

.login-helper {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-top: var(--space-8);
}

.login-content {
  padding: var(--space-20);
  display: grid;
  gap: var(--space-16);
}

.login-field {
  display: grid;
  gap: var(--space-6);
}

.login-checkbox-row {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.login-checkbox:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

.actions {
  display: grid;
  gap: var(--space-12);
}

.login-status {
  min-height: 20px;
  font-size: var(--font-size-sm);
}

.login-status.error {
  color: var(--color-error);
}

.login-status.success {
  color: var(--color-success);
}

.login-divider {
  border: none;
  height: 1px;
  background-color: var(--color-border);
  margin: var(--space-8) 0;
}

@media (max-width: 480px) {
  .login-card {
    border-radius: 0;
  }
}

/* Inline field errors and invalid state */
.field-error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
}

.form-control[aria-invalid="true"] {
  border-color: var(--color-error);
  outline: 2px solid var(--color-error);
}
/* Copy button visibility and positioning within modal detail sections */
.detail-section {
  position: relative;
}
.detail-section .detail-value,
.detail-section .detail-tags {
  padding-right: 2rem; /* prevent overlap with copy button */
}
.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--text-secondary, #555);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease, color 0.2s ease;
}
.detail-section:hover .copy-btn,
.detail-section:focus-within .copy-btn {
  opacity: 1;
}
.copy-btn:focus {
  outline: 2px solid var(--focus-outline, #1a73e8);
  outline-offset: 2px;
}
.copy-btn svg {
  pointer-events: none;
}
.copy-btn.copied {
  color: var(--accent, #1a73e8);
}

/* Toast notifications */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(16px);
  background: rgba(20, 20, 20, 0.9);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
  font-size: 14px;
  line-height: 1.4;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
  z-index: 1000;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Inline toast near copy icons */
.inline-toast {
  position: absolute;
  top: 0;
  left: 0;
  transform: translateY(-6px);
  background: rgba(20, 20, 20, 0.92);
  color: #fff;
  padding: 6px 10px;
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
  font-size: 12px;
  line-height: 1.3;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
  z-index: 2;
}
.inline-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Back to Top button */
.back-to-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 999px;
  background: #000000;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(0,0,0,0.25);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms;
  z-index: 2000;
}
.back-to-top svg { pointer-events: none; }
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:focus { outline: 3px solid #fff; outline-offset: 2px; }