: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 (Light Mode) */
    --color-bg-1: rgba(59, 130, 246, 0.08); /* Light blue */
    --color-bg-2: rgba(245, 158, 11, 0.08); /* Light yellow */
    --color-bg-3: rgba(34, 197, 94, 0.08); /* Light green */
    --color-bg-4: rgba(239, 68, 68, 0.08); /* Light red */
    --color-bg-5: rgba(147, 51, 234, 0.08); /* Light purple */
    --color-bg-6: rgba(249, 115, 22, 0.08); /* Light orange */
    --color-bg-7: rgba(236, 72, 153, 0.08); /* Light pink */
    --color-bg-8: rgba(6, 182, 212, 0.08); /* Light cyan */
  
    /* Semantic Color Tokens (Light Mode) */
    --color-background: var(--color-cream-50);
    --color-surface: var(--color-cream-100);
    --color-text: var(--color-slate-900);
    --color-text-secondary: var(--color-slate-500);
    --color-primary: var(--color-teal-500);
    --color-primary-hover: var(--color-teal-600);
    --color-primary-active: var(--color-teal-700);
    --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
    --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
    --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
    --color-border: rgba(var(--color-brown-600-rgb), 0.2);
    --color-btn-primary-text: var(--color-cream-50);
    --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
    --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
    --color-error: var(--color-red-500);
    --color-success: var(--color-teal-500);
    --color-warning: var(--color-orange-500);
    --color-info: var(--color-slate-500);
    --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);
    --color-select-caret: rgba(var(--color-slate-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: 33, 128, 141;
    --color-error-rgb: 192, 21, 47;
    --color-warning-rgb: 168, 75, 47;
    --color-info-rgb: 98, 108, 113;
  
    /* 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 {
      /* RGB versions for opacity control (Dark Mode) */
      --color-gray-400-rgb: 119, 124, 124;
      --color-teal-300-rgb: 50, 184, 198;
      --color-gray-300-rgb: 167, 169, 169;
      --color-gray-200-rgb: 245, 245, 245;
  
      /* Background color tokens (Dark Mode) */
      --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
      --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
      --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
      --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
      --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
      --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
      --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
      --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */
  
      /* Semantic Color Tokens (Dark Mode) */
      --color-background: var(--color-charcoal-700);
      --color-surface: var(--color-charcoal-800);
      --color-text: var(--color-gray-200);
      --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
      --color-primary: var(--color-teal-300);
      --color-primary-hover: var(--color-teal-400);
      --color-primary-active: var(--color-teal-800);
      --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
      --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
      --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
      --color-border: rgba(var(--color-gray-400-rgb), 0.3);
      --color-error: var(--color-red-400);
      --color-success: var(--color-teal-300);
      --color-warning: var(--color-orange-400);
      --color-info: var(--color-gray-300);
      --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
      --color-btn-primary-text: var(--color-slate-900);
      --color-card-border: rgba(var(--color-gray-400-rgb), 0.2);
      --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
      --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-teal-300-rgb);
      --color-error-rgb: var(--color-red-400-rgb);
      --color-warning-rgb: var(--color-orange-400-rgb);
      --color-info-rgb: var(--color-gray-300-rgb);
    }
  }
  
  /* Data attribute for manual theme switching */
  [data-color-scheme="dark"] {
    /* RGB versions for opacity control (dark mode) */
    --color-gray-400-rgb: 119, 124, 124;
    --color-teal-300-rgb: 50, 184, 198;
    --color-gray-300-rgb: 167, 169, 169;
    --color-gray-200-rgb: 245, 245, 245;
  
    /* Colorful background palette - Dark Mode */
    --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
    --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
    --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
    --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
    --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
    --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
    --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
    --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */
  
    /* Semantic Color Tokens (Dark Mode) */
    --color-background: var(--color-charcoal-700);
    --color-surface: var(--color-charcoal-800);
    --color-text: var(--color-gray-200);
    --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
    --color-primary: var(--color-teal-300);
    --color-primary-hover: var(--color-teal-400);
    --color-primary-active: var(--color-teal-800);
    --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
    --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
    --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
    --color-border: rgba(var(--color-gray-400-rgb), 0.3);
    --color-error: var(--color-red-400);
    --color-success: var(--color-teal-300);
    --color-warning: var(--color-orange-400);
    --color-info: var(--color-gray-300);
    --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
    --color-btn-primary-text: var(--color-slate-900);
    --color-card-border: rgba(var(--color-gray-400-rgb), 0.15);
    --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
    --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: 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-teal-300-rgb);
    --color-error-rgb: var(--color-red-400-rgb);
    --color-warning-rgb: var(--color-orange-400-rgb);
    --color-info-rgb: var(--color-gray-300-rgb);
  }
  
  [data-color-scheme="light"] {
    /* RGB versions for opacity control (light mode) */
    --color-brown-600-rgb: 94, 82, 64;
    --color-teal-500-rgb: 33, 128, 141;
    --color-slate-900-rgb: 19, 52, 59;
  
    /* Semantic Color Tokens (Light Mode) */
    --color-background: var(--color-cream-50);
    --color-surface: var(--color-cream-100);
    --color-text: var(--color-slate-900);
    --color-text-secondary: var(--color-slate-500);
    --color-primary: var(--color-teal-500);
    --color-primary-hover: var(--color-teal-600);
    --color-primary-active: var(--color-teal-700);
    --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
    --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
    --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
    --color-border: rgba(var(--color-brown-600-rgb), 0.2);
    --color-btn-primary-text: var(--color-cream-50);
    --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
    --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
    --color-error: var(--color-red-500);
    --color-success: var(--color-teal-500);
    --color-warning: var(--color-orange-500);
    --color-info: var(--color-slate-500);
    --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);
  
    /* RGB versions for light mode */
    --color-success-rgb: var(--color-teal-500-rgb);
    --color-error-rgb: var(--color-red-500-rgb);
    --color-warning-rgb: var(--color-orange-500-rgb);
    --color-info-rgb: var(--color-slate-500-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 */
  /* Custom dark orange gaming theme */
  :root {
    /* Override design system colors for gaming theme */
    --gaming-bg-primary: #121212;
    --gaming-bg-secondary: #1E1E1E;
    --gaming-bg-tertiary: #2A2A2A;
    --gaming-orange-primary: #FF5722;
    --gaming-orange-secondary: #FF9800;
    --gaming-orange-tertiary: #FFB74D;
    --gaming-text-primary: #E0E0E0;
    --gaming-text-secondary: #BDBDBD;
    --gaming-text-muted: #757575;
    --gaming-border: #424242;
    --gaming-shadow: rgba(0, 0, 0, 0.3);
    --gaming-success: #4CAF50;
    --gaming-error: #F44336;
    --gaming-warning: #FF9800;
  }
  
  /* Base overrides */
  html {
    background-color: var(--gaming-bg-primary);
    color: var(--gaming-text-primary);
  }
  
  body {
    background-color: var(--gaming-bg-primary);
    font-family: var(--font-family-base);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
  }
  
  /* Authentication styles */
  .auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gaming-bg-primary) 0%, var(--gaming-bg-secondary) 100%);
    padding: var(--space-20);
  }
  
  .auth-card {
    background: var(--gaming-bg-secondary);
    border: 1px solid var(--gaming-border);
    border-radius: var(--radius-lg);
    padding: var(--space-32);
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 30px var(--gaming-shadow);
  }
  
  .auth-header {
    text-align: center;
    margin-bottom: var(--space-32);
  }
  
  .auth-header h1 {
    color: var(--gaming-orange-primary);
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-8);
  }
  
  .auth-header p {
    color: var(--gaming-text-secondary);
    font-size: var(--font-size-base);
  }
  
  .auth-footer {
    text-align: center;
    margin-top: var(--space-24);
  }
  
  .auth-footer a {
    color: var(--gaming-orange-secondary);
    text-decoration: none;
    transition: color var(--duration-fast);
  }
  
  .auth-footer a:hover {
    color: var(--gaming-orange-tertiary);
  }

  /* Landing (public) site */
  .site-header {
    position: sticky;
    top: 0;
    background: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(6px);
    border-radius: var(--radius-base);
  }
  
  .form-control:focus {
    border-color: var(--gaming-orange-primary);
    box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.3);
    outline: none;
  }
  
  .form-control::placeholder {
    color: var(--gaming-text-muted);
  }
  
  .form-label {
    color: var(--gaming-text-primary);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-8);
  }
  
  /* Button overrides */
  .btn--primary {
    background: linear-gradient(135deg, var(--gaming-orange-primary) 0%, var(--gaming-orange-secondary) 100%);
    color: white;
    border: none;
    font-weight: var(--font-weight-semibold);
    transition: all var(--duration-normal);
  }
  
  .btn--primary:hover {
    background: linear-gradient(135deg, #E64A19 0%, #F57C00 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 87, 34, 0.4);
  }
  
  .btn--secondary {
    background: var(--gaming-bg-tertiary);
    color: var(--gaming-text-primary);
    border: 1px solid var(--gaming-border);
  }
  
  .btn--secondary:hover {
    background: var(--gaming-border);
    border-color: var(--gaming-orange-primary);
  }
  
  .btn--outline {
    background: transparent;
    border: 1px solid var(--gaming-border);
    color: var(--gaming-text-primary);
  }
  
  .btn--outline:hover {
    border-color: var(--gaming-orange-primary);
    background: rgba(255, 87, 34, 0.1);
  }
  
  /* App layout */
  .app-container {
    display: flex;
    min-height: 100vh;
    background-color: var(--gaming-bg-primary);
  }
  
  /* Sidebar */
  .sidebar {
    width: 280px;
    background: var(--gaming-bg-secondary);
    border-right: 1px solid var(--gaming-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
  }
  
  .sidebar-header {
    padding: var(--space-24);
    border-bottom: 1px solid var(--gaming-border);
  }
  
  .sidebar-header h2 {
    color: var(--gaming-orange-primary);
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-16);
  }
  
  .user-info {
    display: flex;
    align-items: center;
    gap: var(--space-12);
  }
  
  .user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--gaming-orange-primary), var(--gaming-orange-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    color: white;
  }
  
  .user-details {
    display: flex;
    flex-direction: column;
  }
  
  .username {
    color: var(--gaming-text-primary);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
  }
  
  .user-role {
    color: var(--gaming-text-secondary);
    font-size: var(--font-size-sm);
  }
  
  .sidebar-nav {
    padding: var(--space-16);
    flex: 1;
  }
  
  .nav-item {
    display: flex;
    align-items: center;
    padding: var(--space-12) var(--space-16);
    color: var(--gaming-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-base);
    margin-bottom: var(--space-4);
    transition: all var(--duration-fast);
    cursor: pointer;
  }
  
  .nav-item:hover {
    background: var(--gaming-bg-tertiary);
    color: var(--gaming-text-primary);
  }
  
  .nav-item.active {
    background: rgba(255, 87, 34, 0.15);
    color: var(--gaming-orange-secondary);
    border-left: 3px solid var(--gaming-orange-primary);
  }
  
  /* Main content */
  .main-content {
    flex: 1;
    margin-left: 280px;
    padding: var(--space-24);
    background-color: var(--gaming-bg-primary);
  }
  
  .section-header {
    margin-bottom: var(--space-32);
  }
  
  .section-header h1 {
    color: var(--gaming-text-primary);
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-8);
  }
  
  .section-header p {
    color: var(--gaming-text-secondary);
    font-size: var(--font-size-lg);
    margin: 0;
  }
  
  /* Content sections */
  .content-section {
    display: none;
  }
  
  .content-section.active {
    display: block;
  }
  
  /* Dashboard grid */
  .dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-24);
  }
  
  .dashboard-card {
    background: var(--gaming-bg-secondary);
    border: 1px solid var(--gaming-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--duration-normal), box-shadow var(--duration-normal);
  }
  
  .dashboard-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--gaming-shadow);
  }
  .dashboard-card .card__body {
    padding: var(--space-24);
  }
  
  .dashboard-card h3 {
    color: var(--gaming-orange-primary);
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-16);
  }

  /* Dashboard helpers */
  .subscription-status {
    display: flex;
    align-items: center;
    gap: var(--space-12);
  }
  
  .status--success {
    background: rgba(76, 175, 80, 0.15);
    color: var(--gaming-success);
    border: 1px solid rgba(76, 175, 80, 0.3);
  }
  
  .status--error {
    background: rgba(244, 67, 54, 0.15);
    color: var(--gaming-error);
    border: 1px solid rgba(244, 67, 54, 0.3);
  }
  
  .status-details {
    margin-top: var(--space-8);
  }
  
  .status-details p {
    color: var(--gaming-text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
  }
  
  /* Profile info */
  .profile-info {
    display: grid;
    gap: var(--space-16);
  }
  
  .profile-field {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-12) 0;
    border-bottom: 1px solid var(--gaming-border);
  }
  
  .profile-field:last-child {
    border-bottom: none;
  }
  
  .profile-field label {
    color: var(--gaming-text-secondary);
    font-weight: var(--font-weight-medium);
  }
  
  .profile-field span {
    color: var(--gaming-text-primary);
    font-weight: var(--font-weight-semibold);
  }
  
  /* Stats */
  .stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    margin-top: var(--space-16);
  }
  
  .stat-item {
    text-align: center;
    padding: var(--space-16);
    background: var(--gaming-bg-tertiary);
    border-radius: var(--radius-base);
  }
  
  .stat-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--gaming-orange-primary);
  }
  
  .stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--gaming-text-secondary);
    margin-top: var(--space-4);
  }
  
  /* Admin tabs */
  .admin-tabs {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-24);
    border-bottom: 1px solid var(--gaming-border);
  }
  
  .admin-tab {
    background: none;
    border: none;
    color: var(--gaming-text-secondary);
    padding: var(--space-12) var(--space-20);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--duration-fast);
    font-size: var(--font-size-base);
  }
  
  .admin-tab:hover {
    color: var(--gaming-text-primary);
  }
  
  .admin-tab.active {
    color: var(--gaming-orange-primary);
    border-bottom-color: var(--gaming-orange-primary);
  }
  
  .admin-tab-content {
    display: none;
  }
  
  .admin-tab-content.active {
    display: block;
  }
  
  /* Admin controls */
  .admin-controls {
    display: flex;
    gap: var(--space-16);
    margin-bottom: var(--space-24);
  }
  
  .search-input {
    flex: 1;
  }
  
  /* Users table */
  .users-table-container {
    background: var(--gaming-bg-secondary);
    border: 1px solid var(--gaming-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
  }
  
  .users-table {
    width: 100%;
    border-collapse: collapse;
  }
  
  .users-table th {
    background: var(--gaming-bg-tertiary);
    color: var(--gaming-text-primary);
    font-weight: var(--font-weight-semibold);
    padding: var(--space-16);
    text-align: left;
    border-bottom: 1px solid var(--gaming-border);
  }
  
  .users-table td {
    padding: var(--space-16);
    color: var(--gaming-text-primary);
    border-bottom: 1px solid rgba(66, 66, 66, 0.3);
  }
  
  .users-table tbody tr:hover {
    background: var(--gaming-bg-tertiary);
  }
  
  .user-actions {
    display: flex;
    gap: var(--space-8);
  }
  
  .btn--sm {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
  }
  
  .btn--danger {
    background: var(--gaming-error);
    color: white;
    border: none;
  }
  
  .btn--danger:hover {
    background: #D32F2F;
  }
  
  /* Logs */
  .logs-tabs {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-16);
  }
  
  .logs-tab {
    background: var(--gaming-bg-tertiary);
    border: 1px solid var(--gaming-border);
    color: var(--gaming-text-secondary);
    padding: var(--space-8) var(--space-16);
    cursor: pointer;
    border-radius: var(--radius-base);
    transition: all var(--duration-fast);
  }
  
  .logs-tab:hover {
    color: var(--gaming-text-primary);
  }
  
  .logs-tab.active {
    background: var(--gaming-orange-primary);
    color: white;
    border-color: var(--gaming-orange-primary);
  }
  
  .logs-content {
    display: none;
  }
  
  .logs-content.active {
    display: block;
  }
  
  .logs-container {
    background: var(--gaming-bg-secondary);
    border: 1px solid var(--gaming-border);
    border-radius: var(--radius-lg);
    max-height: 500px;
    overflow-y: auto;
    padding: var(--space-16);
  }
  
  .log-entry {
    padding: var(--space-12);
    border-bottom: 1px solid rgba(66, 66, 66, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
  }
  
  .log-entry:last-child {
    border-bottom: none;
  }
  
  .log-message {
    flex: 1;
    margin-right: var(--space-16);
  }
  
  .log-timestamp {
    color: var(--gaming-text-muted);
    font-size: var(--font-size-sm);
    white-space: nowrap;
  }
  
  .log-level {
    display: inline-block;
    padding: var(--space-2) var(--space-8);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    margin-right: var(--space-8);
  }
  
  .log-level--info {
    background: rgba(76, 175, 80, 0.15);
    color: var(--gaming-success);
  }
  
  .log-level--warning {
    background: rgba(255, 152, 0, 0.15);
    color: var(--gaming-warning);
  }
  
  .log-level--error {
    background: rgba(244, 67, 54, 0.15);
    color: var(--gaming-error);
  }
  
  /* Modals */
  .modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
  }
  
  .modal.hidden {
    display: none;
  }
  
  .modal-content {
    background: var(--gaming-bg-secondary);
    border: 1px solid var(--gaming-border);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  }
  
  .modal-header {
    padding: var(--space-20);
    border-bottom: 1px solid var(--gaming-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .modal-header h3 {
    color: var(--gaming-orange-primary);
    margin: 0;
  }
  
  .modal-close {
    background: none;
    border: none;
    color: var(--gaming-text-secondary);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .modal-close:hover {
    color: var(--gaming-text-primary);
  }
  
  .modal-body {
    padding: var(--space-20);
    color: var(--gaming-text-primary);
  }
  
  .modal-footer {
    padding: var(--space-20);
    border-top: 1px solid var(--gaming-border);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-12);
  }
  
  /* Notifications */
  .notifications-container {
    position: fixed;
    top: var(--space-20);
    right: var(--space-20);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
  }
  
  .notification {
    background: var(--gaming-bg-secondary);
    border: 1px solid var(--gaming-border);
    border-radius: var(--radius-base);
    padding: var(--space-16);
    min-width: 300px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transform: translateX(100%);
    animation: slideIn 0.3s ease forwards;
  }
  
  .notification.success {
    border-left: 4px solid var(--gaming-success);
  }
  
  .notification.error {
    border-left: 4px solid var(--gaming-error);
  }
  
  .notification.warning {
    border-left: 4px solid var(--gaming-warning);
  }
  
  .notification-title {
    color: var(--gaming-text-primary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
  }
  
  .notification-message {
    font-size: var(--font-size-sm);
    margin: 0;
  }
  
  @keyframes slideIn {
    to {
      transform: translateX(0);
    }
  }
  
  /* Landing header/nav */
  .site-header { position: sticky; top: 0; background: rgba(18,18,18,.8); backdrop-filter: blur(6px); border-bottom: 1px solid var(--gaming-border); z-index: 50; }
  .header-inner { display:flex; align-items:center; justify-content:space-between; padding: 12px 0; }
  .brand { font-weight: var(--font-weight-bold); font-size: var(--font-size-2xl); color:#fff; letter-spacing:.02em; }
  .brand span { color: var(--gaming-orange-primary); }
  .site-nav { display:flex; gap:12px; align-items:center; }
  .site-nav .nav-link { color: var(--gaming-text-secondary); padding: 8px 12px; }
  .site-nav .nav-link:hover { color: var(--gaming-text-primary); }

  /* Landing hero/sections */
  .hero { background: radial-gradient(1200px 600px at 10% -20%, rgba(255,87,34,.15), transparent), linear-gradient(135deg, var(--gaming-bg-primary), var(--gaming-bg-secondary)); border-bottom: 1px solid var(--gaming-border); }
  .hero-inner { display:grid; grid-template-columns:1.3fr .7fr; gap:24px; padding:64px 0; }
  .hero-title { color:#fff; font-size:42px; margin-bottom:12px; }
  .hero-subtitle { color: var(--gaming-text-secondary); font-size: var(--font-size-xl); }
  .hero-actions { margin-top: 24px; display:flex; gap:12px; }
  .hero-card { align-self:center; }
  .section { padding:64px 0; }
  .features-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap:24px; }
  .feature-card h3 { color: var(--gaming-orange-primary); margin-bottom: 8px; }
  .site-footer { border-top: 1px solid var(--gaming-border); background: var(--gaming-bg-secondary); }
  .footer-inner { display:flex; align-items:center; justify-content:space-between; padding:16px 0; color: var(--gaming-text-secondary); }
  .footer-links a { color: var(--gaming-text-secondary); margin-left:12px; }
  .footer-links a:hover { color: var(--gaming-text-primary); }
  @media (max-width: 900px) { .hero-inner { grid-template-columns:1fr; } .hero-card { order:-1; } }

  /* Product cards (shared by landing and in-app catalog) */
  .product-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-24); }
  .product-card { background: var(--gaming-bg-secondary); border:1px solid var(--gaming-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: var(--space-16); display:flex; flex-direction:column; gap: var(--space-12); }
  .product-thumb { height:140px; border-radius: var(--radius-md); background: linear-gradient(135deg, var(--gaming-orange-primary), var(--gaming-orange-secondary)); display:flex; align-items:center; justify-content:center; color:#fff; font-weight: var(--font-weight-bold); font-size: 40px; overflow:hidden; }
  .product-thumb img { width:100%; height:100%; object-fit:cover; display:block; }
  .product-title { margin:0; color:#fff; }
  .product-meta { display:flex; gap:8px; align-items:center; }
  .badge { display:inline-block; padding:4px 10px; border-radius:999px; font-size: var(--font-size-xs); color: var(--gaming-text-primary); background: var(--gaming-bg-tertiary); border: 1px solid var(--gaming-border); }
  .badge--success { color: var(--gaming-success); border-color: rgba(76,175,80,.35); background: rgba(76,175,80,.12); }
  .badge--warning { color: var(--gaming-warning); border-color: rgba(255,152,0,.35); background: rgba(255,152,0,.12); }
  .product-footer { margin-top:auto; }

  /* In-app catalog */
  .catalog-tabs { display:flex; gap: var(--space-8); margin-bottom: var(--space-16); }
  .catalog-content { display:none; }
  .catalog-content.active { display:block; }
  .balance-box { display:flex; align-items:center; justify-content:space-between; }
  .balance-label { color: var(--gaming-text-secondary); font-size: var(--font-size-sm); }
  .balance-value { font-size: var(--font-size-3xl); font-weight: var(--font-weight-bold); color: var(--gaming-orange-secondary); }
  .product-form .form-row { display:grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: var(--space-12); margin-bottom: var(--space-12); }
  .catalog-card-actions { display:grid; grid-template-columns: 1fr auto; gap: var(--space-8); margin-top: var(--space-8); }
  .qty-input { max-width: 120px; }
  .prod-actions { display:flex; align-items:center; gap: var(--space-8); flex-wrap: wrap; }
  .prod-actions .mini { width: 90px; }

  /* Responsive design */
  @media (max-width: 768px) {
    .sidebar {
      transform: translateX(-100%);
      transition: transform var(--duration-normal);
      z-index: 999;
    }
    
    .sidebar.mobile-open {
      transform: translateX(0);
    }
    
    .main-content {
      margin-left: 0;
      padding: var(--space-16);
    }
    
    .dashboard-grid {
      grid-template-columns: 1fr;
    }
    
    .admin-controls {
      flex-direction: column;
    }
    
    .users-table-container {
      overflow-x: auto;
    }
    
    .modal-content {
      width: 95%;
      margin: var(--space-16);
    }
  }
  
  @media (max-width: 480px) {
    .auth-card {
      padding: var(--space-20);
      margin: var(--space-16);
    }
    
    .main-content {
      padding: var(--space-12);
    }
    
    .stats {
      grid-template-columns: 1fr;
    }
  }