: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 */
/* Override design system colors with new blue theme */
:root {
  --color-primary: #00397c;
  --color-primary-hover: #002a5c;
  --color-primary-active: #001f45;
  --color-btn-primary-text: var(--color-white);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #4a90e2;
    --color-primary-hover: #357abd;
    --color-primary-active: #2563eb;
    --color-btn-primary-text: var(--color-white);
  }
}

[data-color-scheme="dark"] {
  --color-primary: #4a90e2;
  --color-primary-hover: #357abd;
  --color-primary-active: #2563eb;
  --color-btn-primary-text: var(--color-white);
}

[data-color-scheme="light"] {
  --color-primary: #00397c;
  --color-primary-hover: #002a5c;
  --color-primary-active: #001f45;
  --color-btn-primary-text: var(--color-white);
}

/* Application-specific styles */
.progress-container {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-16) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.progress-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: 0 var(--space-16);
  position: relative;
}

.progress-bar::before {
  content: '';
  position: absolute;
  top: 50%;
  left: var(--space-16);
  right: var(--space-16);
  height: 2px;
  background: var(--color-border);
  transform: translateY(-50%);
  z-index: 1;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  position: relative;
  z-index: 2;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: all var(--duration-normal) var(--ease-standard);
}

.step-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.progress-step.active .step-number {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.progress-step.completed .step-number {
  background: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-btn-primary-text);
}

.progress-step.active .step-label,
.progress-step.completed .step-label {
  color: var(--color-text);
}

/* Page Management */
.page {
  display: none;
  padding: var(--space-24) 0;
  min-height: calc(100vh - 120px);
}

.page.active {
  display: block;
}

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

.logo-container {
  margin-bottom: var(--space-16);
}

.foundation-logo {
  max-height: 120px;
  width: auto;
  display: block;
  margin: 0 auto;
}

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

.logo-placeholder {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  padding: var(--space-24);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  background: var(--color-bg-1);
  display: inline-block;
  margin: 0 auto;
}

.tagline {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin: 0;
  font-weight: var(--font-weight-medium);
}

.page-actions {
  display: flex;
  gap: var(--space-16);
  margin-top: var(--space-32);
  justify-content: center;
  flex-wrap: wrap;
}

/* About Page Styles */
.about-content {
  display: grid;
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

.intro-text {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  margin: 0;
}

.mission-vision-container {
  display: grid;
  gap: var(--space-24);
}

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

.recognition-list li {
  padding: var(--space-8) 0;
  color: var(--color-success);
}

.corporate-details {
  background: var(--color-bg-1);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

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

.detail-item {
  font-size: var(--font-size-sm);
}

/* Section Spacing for Details Page */
.section-spacing {
  margin-bottom: var(--space-32);
}

.section-spacing:last-of-type {
  margin-bottom: var(--space-16);
}

/* Campaign Cards */
.campaigns-grid {
  display: grid;
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

.campaign-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  padding: var(--space-24);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-standard);
  cursor: pointer;
}

.campaign-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.campaign-card.selected {
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

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

.campaign-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.campaign-card h4 {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-16);
}

.campaign-card p {
  margin-bottom: var(--space-20);
  color: var(--color-text-secondary);
}

.campaign-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-16);
  margin-bottom: var(--space-24);
  padding-top: var(--space-20);
  border-top: 1px solid var(--color-border);
}

.stat {
  text-align: center;
}

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

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

/* Form Styles */
.form-row {
  display: grid;
  gap: var(--space-16);
}

.amount-options {
  display: grid;
  gap: var(--space-12);
  margin-bottom: var(--space-20);
}

.amount-option {
  display: flex;
  align-items: center;
  padding: var(--space-12);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  background: var(--color-surface);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

.amount-option:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-1);
}

.amount-option.selected {
  border-color: var(--color-primary);
  background: var(--color-bg-1);
  box-shadow: var(--focus-ring);
}

.amount-option input[type="radio"] {
  margin-right: var(--space-12);
}

.amount-details {
  flex: 1;
}

.amount-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.amount-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.amount-input {
  position: relative;
  display: flex;
  align-items: center;
}

.currency {
  position: absolute;
  left: var(--space-12);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  z-index: 1;
}

.amount-input .form-control {
  padding-left: var(--space-32);
}

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

.payment-option {
  display: flex;
  align-items: center;
  padding: var(--space-16);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  background: var(--color-surface);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

.payment-option:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-1);
}

.payment-option input[type="radio"]:checked + .payment-option-content {
  color: var(--color-primary);
}

.payment-option input[type="radio"] {
  margin-right: var(--space-12);
}

.payment-option-content {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.payment-icon {
  font-size: var(--font-size-xl);
}

.payment-title {
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
}

.payment-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.checkbox-label input[type="checkbox"] {
  margin: 0;
}

/* Payment Page */
.payment-container {
  max-width: 500px;
  margin: 0 auto;
}

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

.payment-summary {
  background: var(--color-bg-2);
  padding: var(--space-16);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
  margin-top: var(--space-16);
}

.payment-summary p {
  margin: var(--space-4) 0;
  font-weight: var(--font-weight-medium);
}

.payment-simulator {
  position: relative;
}

.razorpay-mockup,
.upi-mockup {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.mockup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-16);
  background: var(--color-bg-3);
  border-bottom: 1px solid var(--color-border);
}

.mockup-logo {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.mockup-close {
  font-size: var(--font-size-xl);
  cursor: pointer;
  color: var(--color-text-secondary);
}

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

.payment-details {
  text-align: center;
  margin-bottom: var(--space-24);
}

.payment-details h3 {
  margin-bottom: var(--space-8);
}

.payment-details .amount {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin: 0;
}

.payment-options-mockup {
  display: flex;
  margin-bottom: var(--space-20);
  border-bottom: 1px solid var(--color-border);
}

.payment-tab {
  padding: var(--space-8) var(--space-16);
  cursor: pointer;
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
}

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

.card-form {
  display: grid;
  gap: var(--space-12);
  margin-bottom: var(--space-24);
}

.card-form .form-row {
  grid-template-columns: 1fr 1fr;
}

.qr-container {
  text-align: center;
  padding: var(--space-24);
}

.qr-code {
  width: 256px;
  height: 256px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: var(--space-24) auto;
  background: var(--color-white);
  padding: var(--space-16);
}

.qr-code canvas {
  max-width: 100%;
  max-height: 100%;
}

.qr-fallback {
  background: var(--color-bg-1);
  padding: var(--space-16);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
  text-align: center;
  font-size: var(--font-size-sm);
}

.qr-fallback p {
  margin: var(--space-4) 0;
}

.upi-amount {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin: var(--space-16) 0;
}

.upi-instructions {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-24);
}

.payment-loading {
  text-align: center;
  padding: var(--space-32);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
  margin: 0 auto var(--space-16);
}

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

/* Thank You Page */
.thankyou-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.success-icon {
  font-size: 64px;
  margin-bottom: var(--space-24);
}

.success-message {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-32);
}

.donation-summary {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  margin-bottom: var(--space-32);
  text-align: left;
}

.donation-summary h3 {
  text-align: center;
  margin-bottom: var(--space-20);
  color: var(--color-primary);
}

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

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
}

.summary-row:last-child {
  border-bottom: none;
}

.summary-row span:first-child {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.summary-row span:last-child {
  font-weight: var(--font-weight-semibold);
}

/* Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
}

.modal.hidden {
  display: none;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 500px;
  position: relative;
  z-index: 1;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-20);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  margin: 0;
  color: var(--color-primary);
}

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

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

.modal-body {
  padding: var(--space-20);
}

.modal-footer {
  display: flex;
  gap: var(--space-12);
  justify-content: flex-end;
  padding: var(--space-20);
  border-top: 1px solid var(--color-border);
}

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

/* Utility Classes */
.hidden {
  display: none !important;
}

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

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

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

.text-error {
  color: var(--color-error);
}

/* Responsive Design */
@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .form-row.three-col {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .campaigns-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .amount-options {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .details-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .mission-vision-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .progress-step {
    flex-direction: row;
    gap: var(--space-12);
  }
  
  .step-label {
    font-size: var(--font-size-sm);
  }
  
  .page-actions {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .page-actions .btn {
    min-width: 200px;
  }
}

@media (min-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .campaigns-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .amount-options {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ADDITIONAL STYLES FOR NAVIGATION FIX */

/* Additional styles for amount selection and navigation fixes */

/* Amount Option Selection Styles - CRITICAL FOR FUNCTIONALITY */
.amount-option.selected {
    border-color: var(--color-primary) !important;
    background: var(--color-bg-1) !important;
    box-shadow: 0 0 0 3px rgba(var(--color-primary), 0.1) !important;
}

.amount-option.selected .amount-value {
    color: var(--color-primary) !important;
    font-weight: var(--font-weight-bold) !important;
}

.amount-option.selected input[type="radio"] {
    accent-color: var(--color-primary) !important;
}

/* Custom Amount Input Enhancement */
.amount-input {
    position: relative !important;
}

.amount-input .currency {
    position: absolute !important;
    left: var(--space-12) !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    font-weight: var(--font-weight-semibold) !important;
    color: var(--color-text-secondary) !important;
    pointer-events: none !important;
    z-index: 2 !important;
}

.amount-input .form-control {
    padding-left: var(--space-32) !important;
}

/* Disabled Button State */
.btn:disabled,
.btn.disabled {
    opacity: 0.5 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
}

/* Page Transition Animations */
.page {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.page.active {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Mobile responsiveness for campaign grid */
@media (max-width: 768px) {
    .campaigns-grid {
        grid-template-columns: 1fr !important;
        gap: var(--space-16) !important;
    }

    .amount-options {
        grid-template-columns: 1fr !important;
    }

    .form-row {
        grid-template-columns: 1fr !important;
    }

    .page-actions {
        flex-direction: column !important;
        gap: var(--space-12) !important;
    }

    .page-actions .btn {
        width: 100% !important;
    }
}

/* Progress indicator mobile fix */
@media (max-width: 640px) {
    .progress-bar::before {
        left: 10% !important;
        right: 10% !important;
    }

    .step-label {
        font-size: var(--font-size-xs) !important;
    }
}

@media (max-width: 480px) {
    .step-label {
        display: none !important;
    }

    .step-number {
        width: 32px !important;
        height: 32px !important;
        font-size: var(--font-size-xs) !important;
    }
}

/* Enhanced focus states for accessibility */
.amount-option:focus-within,
.payment-option:focus-within {
    outline: 2px solid var(--color-primary) !important;
    outline-offset: 2px !important;
}

/* Loading state enhancements */
.loading-spinner {
    border: 4px solid var(--color-border) !important;
    border-top: 4px solid var(--color-primary) !important;
    border-radius: 50% !important;
    width: 40px !important;
    height: 40px !important;
    animation: spin 1s linear infinite !important;
    margin: 0 auto var(--space-16) auto !important;
}

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

/* QR Code container improvements */
.qr-code {
    background: var(--color-white) !important;
    padding: var(--space-16) !important;
    border-radius: var(--radius-base) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.qr-fallback {
    background: var(--color-bg-2) !important;
    padding: var(--space-20) !important;
    border-radius: var(--radius-base) !important;
    border: 1px solid var(--color-border) !important;
    text-align: center !important;
}

.qr-fallback p {
    margin: var(--space-8) 0 !important;
    font-size: var(--font-size-sm) !important;
}

/* Modal backdrop blur enhancement */
.modal-backdrop {
    backdrop-filter: blur(4px) !important;
    background: rgba(0, 0, 0, 0.6) !important;
}

/* Success icon animation */
.success-icon {
    animation: successPulse 0.6s ease-out !important;
}

@keyframes successPulse {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Campaign card hover enhancements */
.campaign-card {
    transition: all 0.3s var(--ease-standard) !important;
}

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

/* Form validation error states */
.form-control.error {
    border-color: var(--color-error) !important;
    box-shadow: 0 0 0 3px rgba(var(--color-error-rgb), 0.1) !important;
}

.form-control.success {
    border-color: var(--color-success) !important;
}

/* Payment method selection enhancement */
.payment-option input[type="radio"]:checked + .payment-option-content {
    color: var(--color-primary) !important;
}

.payment-option:has(input[type="radio"]:checked) {
    border-color: var(--color-primary) !important;
    background: var(--color-bg-1) !important;
}

/* Checkbox and radio button custom styling */
input[type="checkbox"],
input[type="radio"] {
    accent-color: var(--color-primary) !important;
}

/* Text selection styling */
::selection {
    background-color: rgba(var(--color-primary), 0.2) !important;
    color: var(--color-text) !important;
}

/* Print styles */
@media print {
    .progress-container,
    .page-actions,
    .btn {
        display: none !important;
    }

    .page {
        display: block !important;
        page-break-after: always !important;
    }

    .donation-summary {
        border: 2px solid var(--color-border) !important;
    }
}