: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;

  /* Color Scheme */
  --color-primary: #3b82f6;
  --color-primary-rgb: 59, 130, 246;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #93c5fd;
  
  --color-success: #22c55e;
  --color-success-rgb: 34, 197, 94;
  --color-success-dark: #15803d;
  --color-success-light: #86efac;
  
  --color-warning: #f59e0b;
  --color-warning-rgb: 245, 158, 11;
  --color-warning-dark: #d97706;
  --color-warning-light: #fcd34d;
  
  --color-error: #dc2626;
  --color-error-rgb: 220, 38, 38;
  --color-error-dark: #b91c1c;
  --color-error-light: #fca5a5;
  
  --color-info: #06b6d4;
  --color-info-rgb: 6, 182, 212;
  --color-info-dark: #0891b2;
  --color-info-light: #67e8f9;
  
  /* Surface Colors */
  --color-surface: #ffffff;
  --color-surface-rgb: 255, 255, 255;
  --color-surface-secondary: #f8fafc;
  --color-surface-tertiary: #f1f5f9;
  
  /* Text Colors */
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  
  /* Border Colors */
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  
  /* Shadow Colors */
  --color-shadow: rgba(0, 0, 0, 0.1);
  --color-shadow-light: rgba(0, 0, 0, 0.05);
  --color-shadow-dark: rgba(0, 0, 0, 0.2);
  
  /* Spacing */
  --space-4: 0.25rem;
  --space-8: 0.5rem;
  --space-12: 0.75rem;
  --space-16: 1rem;
  --space-20: 1.25rem;
  --space-24: 1.5rem;
  --space-32: 2rem;
  --space-40: 2.5rem;
  --space-48: 3rem;
  --space-56: 3.5rem;
  --space-64: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Consolas', monospace;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  
  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* 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 styles for Yek Salai website */

/* Theme Toggle */
.theme-toggle {
  position: fixed;
  top: var(--space-20);
  right: var(--space-20);
  z-index: 1001;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--duration-normal) var(--ease-standard);
}

.theme-toggle:hover {
  box-shadow: var(--shadow-lg);
  transform: scale(1.05);
}

/* Header */
.header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
}

.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-16) 0;
}

.logo h1 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin: 0;
}

.logo__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.nav__list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-32);
}

.nav__link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: color var(--duration-fast) var(--ease-standard);
  position: relative;
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-primary);
}

.nav__link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
}

/* Main Content */
.main {
  min-height: 100vh;
}

.section {
  display: none;
  padding: var(--space-32) 0;
}

.section.active {
  display: block;
}

.section--home {
  padding: 0;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-32);
}

.section__title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.section__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Hero Section */
.hero {
  background: var(--color-bg-1);
  padding: var(--space-32) 0;
  text-align: center;
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.hero__description {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-32) auto;
  line-height: var(--line-height-normal);
}

.hero__actions {
  display: flex;
  gap: var(--space-16);
  justify-content: center;
  flex-wrap: wrap;
}

/* Features Section */
.features {
  padding: var(--space-32) 0;
  background: var(--color-surface);
}

.features__title {
  text-align: center;
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-32);
  color: var(--color-text);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-24);
}

.feature-card {
  background: var(--color-background);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  text-align: center;
  transition: transform var(--duration-normal) var(--ease-standard);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card__icon {
  width: 64px;
  height: 64px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-16) auto;
}

.feature-card__icon .material-icons {
  color: var(--color-btn-primary-text);
  font-size: 32px;
}

.feature-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-12);
  color: var(--color-text);
}

.feature-card__description {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

/* Stats Section */
.stats {
  padding: var(--space-32) 0;
  background: var(--color-bg-2);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-24);
}

.stat-card {
  text-align: center;
  padding: var(--space-24);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
}

.stat-card__number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-8);
}

.stat-card__label {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

/* Search Components */
.search-container {
  margin-bottom: var(--space-32);
}

.search-box {
  position: relative;
  max-width: 500px;
  margin: 0 auto var(--space-24) auto;
}

.search-input {
  padding-right: 50px;
}

.search-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-sm);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-btn-primary-text);
}

.search-results {
  max-width: 500px;
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  max-height: 300px;
  overflow-y: auto;
  display: none;
}

.search-results.active {
  display: block;
}

.search-result-item {
  padding: var(--space-12) var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-standard);
}

.search-result-item:hover {
  background: var(--color-secondary);
}

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

.result-surname {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.result-clan {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
}

/* Clan Browser */
.clan-browser {
  background: var(--color-surface);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
}

.clan-browser h3 {
  margin-bottom: var(--space-24);
  color: var(--color-text);
}

.clan-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  margin-bottom: var(--space-24);
  border-bottom: 1px solid var(--color-border);
}

.clan-tab {
  padding: var(--space-12) var(--space-16);
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-weight: var(--font-weight-medium);
  transition: all var(--duration-fast) var(--ease-standard);
}

.clan-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.clan-tab:hover {
  color: var(--color-primary);
}

.clan-content {
  min-height: 200px;
}

.clan-surnames {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-12);
}

.surname-item {
  padding: var(--space-8) var(--space-12);
  background: var(--color-background);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-card-border);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

/* Marriage Checker */
.marriage-checker {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(59, 130, 246, 0.02) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-32);
  border: 1px solid rgba(59, 130, 246, 0.1);
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.1);
}

.marriage-checker h3 {
  text-align: center;
  margin-bottom: var(--space-24);
  color: var(--color-primary-dark);
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  position: relative;
}

.marriage-checker h3::after {
  content: '💕';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--text-xl);
  opacity: 0.7;
}

.marriage-form {
  display: grid;
  gap: var(--space-20);
  max-width: 600px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: end;
}

.form-row .form-group {
  margin: 0;
}

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

.form-control {
  width: 100%;
  padding: var(--space-12) var(--space-16);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  transition: all var(--transition-normal);
  background: var(--color-surface);
  color: var(--color-text);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.form-control:hover {
  border-color: var(--color-primary-light);
}

.check-compatibility-btn {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  border: none;
  padding: var(--space-16) var(--space-24);
  border-radius: var(--radius-lg);
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
  position: relative;
  overflow: hidden;
}

.check-compatibility-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.check-compatibility-btn:hover::before {
  left: 100%;
}

.check-compatibility-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.check-compatibility-btn:active {
  transform: translateY(0);
}

.check-compatibility-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Enhanced compatibility result container */
.compatibility-result-container {
  margin-top: var(--space-32);
  position: relative;
}

/* Status indicator badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-16);
}

.status-badge.compatible {
  background: rgba(34, 197, 94, 0.1);
  color: var(--color-success-dark);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.status-badge.incompatible,
.status-badge.critical {
  background: rgba(220, 38, 38, 0.1);
  color: var(--color-error-dark);
  border: 1px solid rgba(220, 38, 38, 0.3);
}

.status-badge.restricted,
.status-badge.warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-warning-dark);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Enhanced form animations */
.form-group {
  animation: fadeInUp 0.6s ease-out;
  animation-fill-mode: both;
}

.form-group:nth-child(1) { animation-delay: 0.1s; }
.form-group:nth-child(2) { animation-delay: 0.2s; }
.form-group:nth-child(3) { animation-delay: 0.3s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive design for mobile */
@media (max-width: 768px) {
  .marriage-checker {
    padding: var(--space-20);
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }
  
  .check-compatibility-btn {
    padding: var(--space-14) var(--space-20);
    font-size: var(--text-base);
  }
  
  .compatibility-result {
    padding: var(--space-16);
  }
  
  .result-icon .material-icons {
    font-size: 36px;
    padding: var(--space-12);
  }
}

/* Compatibility Result */
.compatibility-result {
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  text-align: center;
  display: none;
  margin-top: var(--space-16);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.compatibility-result.active {
  display: block;
  animation: slideInUp 0.4s ease-out;
}

.compatibility-result.compatible {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(34, 197, 94, 0.05) 100%);
  border: 2px solid #22c55e;
  color: #15803d;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.2);
}

.compatibility-result.incompatible {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
  border: 2px solid #dc2626;
  color: #b91c1c;
  box-shadow: 0 4px 20px rgba(239, 68, 68, 0.2);
}

.compatibility-result.restricted {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(245, 158, 11, 0.05) 100%);
  border: 2px solid #f59e0b;
  color: #d97706;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.2);
}

.compatibility-result.error {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
  border: 2px solid #dc2626;
  color: #b91c1c;
  box-shadow: 0 4px 20px rgba(239, 68, 68, 0.2);
}

.compatibility-result.critical {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(239, 68, 68, 0.08) 100%);
  border: 2px solid #dc2626;
  color: #b91c1c;
  box-shadow: 0 4px 20px rgba(239, 68, 68, 0.25);
}

.compatibility-result.warning {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(245, 158, 11, 0.08) 100%);
  border: 2px solid #f59e0b;
  color: #d97706;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.25);
}

.compatibility-result.none {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.15) 0%, rgba(34, 197, 94, 0.08) 100%);
  border: 2px solid #22c55e;
  color: #15803d;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.25);
}

/* Enhanced result icon styling */
.result-icon {
  margin-bottom: var(--space-16);
  display: flex;
  justify-content: center;
  align-items: center;
}

.result-icon .material-icons {
  font-size: 48px;
  padding: var(--space-16);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.compatibility-result.compatible .result-icon .material-icons {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
}

.compatibility-result.incompatible .result-icon .material-icons,
.compatibility-result.error .result-icon .material-icons,
.compatibility-result.critical .result-icon .material-icons {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

.compatibility-result.restricted .result-icon .material-icons,
.compatibility-result.warning .result-icon .material-icons {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
}

.compatibility-result.none .result-icon .material-icons {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
}

/* Enhanced result title styling */
.result-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-12);
  line-height: 1.4;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Enhanced result description styling */
.result-description {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: var(--space-16);
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Enhanced result diagram styling */
.result-diagram {
  margin-top: var(--space-20);
  padding: var(--space-16);
  background: rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-md);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Add subtle pattern overlay for visual interest */
.compatibility-result::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.compatibility-result > * {
  position: relative;
  z-index: 1;
}

/* Animation for slide in effect */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Enhanced violations section styling */
.violations-section {
  margin-top: var(--space-20);
  text-align: left;
  background: rgba(255, 255, 255, 0.8);
  padding: var(--space-16);
  border-radius: var(--radius-md);
  border-left: 4px solid;
}

.compatibility-result.compatible .violations-section {
  border-left-color: #22c55e;
}

.compatibility-result.incompatible .violations-section,
.compatibility-result.error .violations-section,
.compatibility-result.critical .violations-section {
  border-left-color: #dc2626;
}

.compatibility-result.restricted .violations-section,
.compatibility-result.warning .violations-section {
  border-left-color: #f59e0b;
}

.violations-section h4 {
  margin-bottom: var(--space-12);
  color: var(--color-text);
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.violations-section h4::before {
  content: '⚠️';
  font-size: 18px;
}

.violation-item {
  padding: var(--space-12);
  margin-bottom: var(--space-8);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
}

.violation-item:hover {
  transform: translateX(4px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.violation-item.critical {
  background: rgba(239, 68, 68, 0.05);
  border-left-color: #dc2626;
}

.violation-item.warning {
  background: rgba(245, 158, 11, 0.05);
  border-left-color: #f59e0b;
}

.violation-details {
  margin-top: var(--space-8);
  opacity: 0.8;
  font-size: 0.9rem;
  padding-left: var(--space-8);
  border-left: 2px solid rgba(0, 0, 0, 0.1);
}

/* Enhanced lineage section styling */
.lineage-section {
  margin-top: var(--space-20);
  text-align: center;
  background: rgba(255, 255, 255, 0.8);
  padding: var(--space-16);
  border-radius: var(--radius-md);
}

.lineage-section h4 {
  margin-bottom: var(--space-12);
  color: var(--color-text);
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
}

.lineage-section h4::before {
  content: '🔗';
  font-size: 18px;
}

.diagram-container {
  display: flex;
  justify-content: center;
  padding: var(--space-16);
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-md);
  margin-top: var(--space-8);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.lineage-diagram {
  max-width: 100%;
  height: auto;
  font-family: var(--font-family-base);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.lineage-diagram text {
  font-size: 10px;
  fill: var(--color-text);
  font-weight: 500;
}

/* Marriage Rules Education */
.compatibility-result.education {
  border-color: var(--color-info);
  background: rgba(var(--color-info-rgb), 0.05);
}

.marriage-rules-education {
  padding: var(--space-16);
}

.marriage-rules-education h3 {
  text-align: center;
  margin-bottom: var(--space-24);
  color: var(--color-text);
  font-size: var(--font-size-xl);
}

.rule-section {
  background: var(--color-surface);
  padding: var(--space-20);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  margin-bottom: var(--space-20);
}

.rule-section h4 {
  color: var(--color-primary);
  margin-bottom: var(--space-12);
  font-size: var(--font-size-lg);
}

.rule-section p {
  margin-bottom: var(--space-8);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

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

.severity-critical {
  color: var(--color-error);
  font-weight: var(--font-weight-bold);
}

.severity-warning {
  color: var(--color-warning);
  font-weight: var(--font-weight-bold);
}

.severity-medium {
  color: var(--color-info);
  font-weight: var(--font-weight-bold);
}

/* Enhanced Family Tree Styles */
.family-tree-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-20);
  padding: var(--space-16);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.tree-view-toggle {
  display: flex;
  gap: var(--space-8);
}

.tree-view-toggle .btn.active {
  background: var(--color-primary);
  color: white;
}

.tree-export-buttons {
  display: flex;
  gap: var(--space-8);
}

.tree-view-container {
  position: relative;
}

.tree-view {
  display: none;
}

.tree-view.active {
  display: block;
}

.tree-svg-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-20);
  overflow: auto;
  max-height: 600px;
  box-shadow: var(--shadow-sm);
}

.tree-svg-container svg {
  max-width: 100%;
  height: auto;
}

/* Enhanced SVG styling */
.tree-svg-container svg line {
  transition: stroke-width 0.2s ease;
}

.tree-svg-container svg line:hover {
  stroke-width: 4;
}

.tree-svg-container svg marker {
  transition: all 0.2s ease;
}

.person-node {
  cursor: pointer;
  transition: all 0.2s ease;
}

.person-node:hover rect {
  fill: #bbdefb !important;
  stroke: #1565c0 !important;
  stroke-width: 3 !important;
  filter: drop-shadow(0 2px 4px rgba(25, 118, 210, 0.3));
}

.person-node.selected rect {
  fill: #90caf9 !important;
  stroke: #0d47a1 !important;
  stroke-width: 3 !important;
  filter: drop-shadow(0 4px 8px rgba(25, 118, 210, 0.4));
}

/* Parent relationship styling */
.parent-relationship {
  stroke: var(--color-primary);
  stroke-width: 3;
  opacity: 0.8;
}

.parent-relationship:hover {
  stroke-width: 4;
  opacity: 1;
}

.generation-summary {
  margin-top: var(--space-16);
  padding: var(--space-16);
  background: rgba(var(--color-primary-rgb), 0.1);
  border-radius: var(--radius-md);
  text-align: center;
}

.generation-summary h4 {
  margin: 0 0 var(--space-8) 0;
  color: var(--color-primary);
}

.generation-summary p {
  margin: 0;
  color: var(--color-text-secondary);
}

.family-member {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-16);
  margin-bottom: var(--space-12);
  transition: all 0.2s ease;
}

.family-member:hover {
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.1);
}

.member-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.member-details {
  margin-bottom: var(--space-12);
  color: var(--color-text-secondary);
}

.member-details > div {
  margin-bottom: var(--space-4);
}

.parent-info {
  font-style: italic;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.member-actions {
  display: flex;
  gap: var(--space-8);
}

.btn--danger {
  background: var(--color-error);
  color: white;
  border-color: var(--color-error);
}

.btn--danger:hover {
  background: #c62828;
  border-color: #c62828;
}

/* Family tree legend */
.family-tree-legend {
  margin-top: var(--space-16);
  padding: var(--space-16);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  gap: var(--space-24);
  justify-content: center;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.legend-arrow {
  width: 30px;
  height: 2px;
  background: #666;
  position: relative;
}

.legend-arrow::after {
  content: '';
  position: absolute;
  right: 0;
  top: -3px;
  width: 0;
  height: 0;
  border-left: 6px solid #666;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

.legend-double-arrow {
  width: 30px;
  height: 3px;
  background: var(--color-primary);
  position: relative;
}

.legend-double-arrow::before {
  content: '';
  position: absolute;
  left: 0;
  top: -3px;
  width: 0;
  height: 0;
  border-right: 6px solid var(--color-primary);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

.legend-double-arrow::after {
  content: '';
  position: absolute;
  right: 0;
  top: -3px;
  width: 0;
  height: 0;
  border-left: 6px solid var(--color-primary);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

.legend-equals {
  font-weight: bold;
  color: var(--color-primary);
  font-size: 16px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .family-tree-controls {
    flex-direction: column;
    gap: var(--space-12);
  }
  
  .tree-view-toggle,
  .tree-export-buttons {
    width: 100%;
    justify-content: center;
  }
  
  .tree-svg-container {
    overflow-x: auto;
    overflow-y: hidden;
  }
  
  .member-actions {
    justify-content: flex-end;
  }
  
  .family-tree-legend {
    flex-direction: column;
    align-items: center;
    gap: var(--space-16);
  }
}

.result-icon {
  font-size: 48px;
  margin-bottom: var(--space-16);
}

.result-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-12);
}

.result-description {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-normal);
}

/* Marriage Rules */
.marriage-rules {
  margin-top: var(--space-32);
}

.marriage-rules h3 {
  text-align: center;
  margin-bottom: var(--space-24);
  color: var(--color-text);
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
}

.rule-card {
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  border: 2px solid;
}

.rule-card--prohibited {
  background: rgba(var(--color-error-rgb), 0.05);
  border-color: rgba(var(--color-error-rgb), 0.2);
}

.rule-card--allowed {
  background: rgba(var(--color-success-rgb), 0.05);
  border-color: rgba(var(--color-success-rgb), 0.2);
}

.rule-card h4 {
  margin-bottom: var(--space-12);
  color: var(--color-text);
}

.rule-card p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
}

.marriage-rules-actions {
  text-align: center;
  margin-top: var(--space-24);
}

.marriage-rules-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
}

.marriage-rules-actions .material-icons {
  font-size: 18px;
}

/* Learning Modules */
.learning-modules {
  display: flex;
  flex-direction: column;
  gap: var(--space-32);
}

.module-card {
  background: var(--color-surface);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
}

.module-card h3 {
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.clan-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-16);
  margin-top: var(--space-16);
}

.clan-info-card {
  padding: var(--space-16);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-card-border);
  background: var(--color-background);
}

.clan-color {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-8);
}

.clan-name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.clan-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

/* Timeline */
.timeline {
  position: relative;
  margin-top: var(--space-24);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: var(--space-24);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 8px;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: 3px solid var(--color-surface);
}

.timeline-date {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-8);
}

.timeline-content h4 {
  margin-bottom: var(--space-8);
  color: var(--color-text);
}

.timeline-content p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
}

/* Quiz */
.quiz-container {
  text-align: center;
}

.quiz-question {
  margin-bottom: var(--space-24);
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  margin-bottom: var(--space-24);
}

.quiz-option {
  padding: var(--space-12) var(--space-16);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  background: var(--color-background);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

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

.quiz-option.selected {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  border-color: var(--color-primary);
}

/* Family Tree */
.family-tree-tools {
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
}

.tree-actions {
  display: flex;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.family-tree-container {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  min-height: 400px;
  padding: var(--space-24);
  position: relative;
}

.tree-placeholder {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--color-text-secondary);
}

.tree-placeholder .material-icons {
  font-size: 64px;
  margin-bottom: var(--space-16);
}

.family-member {
  background: var(--color-background);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-base);
  padding: var(--space-12);
  margin: var(--space-8);
  display: inline-block;
  min-width: 150px;
  text-align: center;
}

.member-name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.member-details {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden {
  display: none;
}

.modal__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal__content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  z-index: 1;
}

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

.modal__header h3 {
  margin: 0;
  color: var(--color-text);
}

.modal__close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: var(--space-4);
}

.modal__body {
  padding: var(--space-24);
}

.modal__footer {
  padding: var(--space-24);
  border-top: 1px solid var(--color-card-border-inner);
  display: flex;
  gap: var(--space-12);
  justify-content: flex-end;
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

.about-card {
  background: var(--color-surface);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
}

.about-card h3 {
  color: var(--color-text);
  margin-bottom: var(--space-16);
}

.about-card p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
}

.contact-info {
  background: var(--color-bg-3);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  text-align: center;
}

.contact-info h3 {
  color: var(--color-text);
  margin-bottom: var(--space-16);
}

.contact-info p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
}

/* Footer */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-32) 0 var(--space-16) 0;
  margin-top: var(--space-32);
}

.footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-32);
  margin-bottom: var(--space-32);
}

.footer__section h4 {
  color: var(--color-text);
  margin-bottom: var(--space-16);
}

.footer__section p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
}

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

.footer__links li {
  margin-bottom: var(--space-8);
}

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

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

.footer__bottom {
  text-align: center;
  padding-top: var(--space-24);
  border-top: 1px solid var(--color-card-border-inner);
}

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

/* Loading Indicator */
.loading-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(var(--color-slate-900-rgb), 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  color: var(--color-white);
}

.loading-indicator.hidden {
  display: none;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-16);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Clan Colors */
.clan-color--red { background: #dc2626; } /* Red for Mangang */
.clan-color--white { background: #ffffff; border: 1px solid var(--color-border); } /* White for Luwang */
.clan-color--dark { background: #000000; } /* Black for Khuman */
.clan-color--pink { background: #eab308; } /* Yellow for Angom */
.clan-color--golden { background: linear-gradient(45deg, #dc2626 50%, #000000 50%); } /* Red mixed with black for Moirang */
.clan-color--black { background: #7c3aed; } /* Purple for Khaba-Nganba */
.clan-color--blue { background: #0ea5e9; } /* Sky blue for Salai-Leishangthem */

/* Community Features Styling */
#community {
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

#community.show {
  opacity: 1;
}

.community-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
  margin-top: var(--space-32);
}

.community-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.community-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.community-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  margin-bottom: var(--space-16);
}

.community-card__header .material-icons {
  font-size: var(--font-size-3xl);
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.1);
  padding: var(--space-12);
  border-radius: var(--radius-full);
}

.community-card__header h3 {
  margin: 0;
  color: var(--color-text);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

.community-card p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-20);
}

.community-card .btn {
  width: 100%;
  justify-content: center;
  gap: var(--space-8);
}

/* Contribution Stats */
.contribution-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-16);
  margin: var(--space-20) 0;
  padding: var(--space-16);
  background: rgba(var(--color-primary-rgb), 0.05);
  border-radius: var(--radius-md);
}

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

.stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: var(--line-height-tight);
}

.stat-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav__list {
    display: none;
  }
  
  .nav__toggle {
    display: block;
  }
  
  .hero__title {
    font-size: var(--font-size-3xl);
  }
  
  .hero__actions {
    flex-direction: column;
    align-items: center;
  }
  
  .features__grid {
    grid-template-columns: 1fr;
  }
  
  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .clan-tabs {
    flex-direction: column;
  }
  
  .rules-grid {
    grid-template-columns: 1fr;
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .footer__content {
    grid-template-columns: 1fr;
  }
  
  .theme-toggle {
    top: var(--space-12);
    right: var(--space-12);
  }
  
  .tree-actions {
    flex-direction: column;
  }
  
  .clan-surnames {
    grid-template-columns: 1fr;
  }
  
  .community-content {
    grid-template-columns: 1fr;
    gap: var(--space-20);
  }
  
  .contribution-stats {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  
  .community-card {
    padding: var(--space-20);
  }
}

/* Notification System */
.notification {
  position: fixed;
  top: var(--space-20);
  right: var(--space-20);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-16);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: var(--space-12);
  max-width: 400px;
  animation: slideInRight 0.3s ease;
}

.notification--success {
  border-color: var(--color-success);
  background: rgba(var(--color-success-rgb), 0.1);
}

.notification--error {
  border-color: var(--color-error);
  background: rgba(var(--color-error-rgb), 0.1);
}

.notification--warning {
  border-color: var(--color-warning);
  background: rgba(var(--color-warning-rgb), 0.1);
}

.notification--info {
  border-color: var(--color-info);
  background: rgba(var(--color-info-rgb), 0.1);
}

.notification .material-icons {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
}

.notification--success .material-icons {
  color: var(--color-success);
}

.notification--error .material-icons {
  color: var(--color-error);
}

.notification--warning .material-icons {
  color: var(--color-warning);
}

.notification--info .material-icons {
  color: var(--color-info);
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    width: 100%;
  }
  
  .hero__actions .btn {
    width: 100%;
  }
  
  .stats__grid {
    grid-template-columns: 1fr;
  }
  
  .modal__content {
    width: 95%;
  }
}