: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 !important; ;
}

/* 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 */
/* Additional styles beyond the design system */

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-background);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease-out;
}

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

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-secondary);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: all 0.3s ease;
    transform: translateY(-100%);
}

.header.visible {
    transform: translateY(0);
}

.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.header__logo h1 {
    font-size: var(--font-size-xl);
    margin: 0;
    color: var(--color-primary);
}

.header__nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.header__actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-text);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-bg-1) 0%, var(--color-bg-8) 100%);
    overflow: hidden;
}

.hero__particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 50%;
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero__content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero__badge {
    margin-bottom: 1.5rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.badge--success {
    background: rgba(var(--color-success-rgb), 0.1);
    color: var(--color-success);
    border: 1px solid rgba(var(--color-success-rgb), 0.2);
}

.hero__title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-teal-400) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero__stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 2rem;
}

.stat {
    text-align: center;
}

.stat__number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    display: block;
}

.stat__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.hero__trust {
    margin-top: 2rem;
}

.trust-signals {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.trust-signals span {
    color: var(--color-success);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.hero__visual {
    text-align: center;
    position: relative;
}

.hero__car {
    font-size: 8rem;
    margin-bottom: 2rem;
    display: block;
}

.hero__elements {
    position: relative;
}

.floating-element {
    position: absolute;
    font-size: 2rem;
    animation: floatElement 4s ease-in-out infinite;
    animation-delay: var(--delay);
}

.floating-element:nth-child(1) {
    top: -2rem;
    left: -2rem;
}

.floating-element:nth-child(2) {
    top: -1rem;
    right: -2rem;
}

.floating-element:nth-child(3) {
    bottom: -2rem;
    left: 50%;
    transform: translateX(-50%);
}

@keyframes floatElement {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-15px) scale(1.1); }
}

.hero__scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-text-secondary);
}

.scroll-arrow {
    font-size: 1.5rem;
    margin-top: 0.5rem;
    animation: bounce 2s infinite;
}

/* Animation Classes */
.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-slide-up {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s ease-out forwards;
}

.animate-slide-up.delay-1 { animation-delay: 0.2s; }
.animate-slide-up.delay-2 { animation-delay: 0.4s; }
.animate-slide-up.delay-3 { animation-delay: 0.6s; }

.animate-fade-in.delay-4 { animation-delay: 0.8s; }

.animate-float {
    animation: floatHero 6s ease-in-out infinite;
}

.animate-bounce {
    animation: bounce 2s infinite;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes floatHero {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Live Notifications */
.live-notifications {
    position: fixed;
    top: 100px;
    right: 2rem;
    z-index: 1001;
    width: 320px;
}

.notification {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    animation: slideInNotification 0.5s ease-out forwards;
}

.notification__content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.notification__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg-3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.notification__text {
    flex: 1;
}

.notification__text strong {
    color: var(--color-text);
    font-weight: 600;
}

.notification__text small {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
}

@keyframes slideInNotification {
    to { transform: translateX(0); }
}

/* Section Padding */
.section-padding {
    padding: 5rem 0;
}

.section-header {
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

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

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

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    position: relative;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-card__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--color-text);
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.feature-card__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(var(--color-teal-500-rgb), 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover .feature-card__overlay {
    opacity: 1;
}

/* Courses Section */
.course-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    border-color: var(--color-primary);
}

.courses__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.course-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.course-card--popular {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(var(--color-teal-500-rgb), 0.1);
}

.course-card__ribbon {
    position: absolute;
    top: 1rem;
    right: -2rem;
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    padding: 0.5rem 3rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    transform: rotate(45deg);
    z-index: 1;
}

.course-card__header {
    padding: 2rem 2rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.course-card__icon {
    font-size: 2.5rem;
}

.course-card__badge {
    background: var(--color-bg-2);
    color: var(--color-warning);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.course-card__content {
    padding: 1rem 2rem;
}

.course-card__content h3 {
    margin-bottom: 1rem;
    font-size: var(--font-size-2xl);
}

.course-card__price {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.price-current {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.price-original {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    text-decoration: line-through;
}

.price-discount {
    background: var(--color-bg-4);
    color: var(--color-error);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.course-card__details {
    display: flex;
    gap: 2rem;
    margin-bottom: 1rem;
}

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

.course-card__description {
    margin-bottom: 1.5rem;
    color: var(--color-text-secondary);
}

.course-card__features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
}

.course-card__features li {
    padding: 0.5rem 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.course-card__footer {
    padding: 0 2rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

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

/* Instructors Section */
.instructors {
    background: var(--color-surface);
}

.instructors__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.instructor-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.instructor-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.instructor-card__avatar {
    position: relative;
    margin-bottom: 1.5rem;
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--color-bg-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 1rem;
}

.instructor-card__rating {
    position: absolute;
    top: -10px;
    right: 50%;
    transform: translateX(50%);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-xs);
}

.rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.stars {
    color: #FFD700;
}

.rating-value {
    font-weight: 600;
    color: var(--color-text);
}

.instructor-card__content h3 {
    margin-bottom: 0.5rem;
}

.instructor-card__specialty {
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.instructor-card__stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--color-bg-1);
    border-radius: var(--radius-base);
}

.instructor-card__stats .stat {
    text-align: center;
}

.instructor-card__stats .stat strong {
    display: block;
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.instructor-card__stats .stat span {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.instructor-card__languages {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.language-tag {
    background: var(--color-bg-5);
    color: var(--color-text);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* Testimonials Section */
.testimonials__container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonials__slider {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.testimonial-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s ease;
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
}

.testimonial-card.active {
    opacity: 1;
    transform: translateX(0);
    position: relative;
}

.testimonial-card__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.testimonial-card__avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-bg-3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.testimonial-card__info h4 {
    margin-bottom: 0.25rem;
}

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

.testimonial-card__course {
    background: var(--color-bg-1);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-left: auto;
}

.testimonial-card__content {
    margin-bottom: 1.5rem;
}

.testimonial-card__content p {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    color: var(--color-text);
    font-style: italic;
}

.testimonial-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.testimonial-date {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.testimonials__controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.testimonial-nav {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.testimonial-nav:hover {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    border-color: var(--color-primary);
}

.testimonial-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: var(--color-border);
    cursor: pointer;
    transition: background 0.3s ease;
}

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

/* FAQ Section */
.faq {
    background: var(--color-surface);
}

.faq-search {
    max-width: 500px;
    margin: 0 auto 2rem;
}

.search-box {
    position: relative;
}

.search-box input {
    padding-right: 3rem;
}

.search-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-secondary);
    font-size: 1.25rem;
}

.faq-categories {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.category-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    background: var(--color-background);
    color: var(--color-text);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: var(--font-size-sm);
}

.category-btn:hover,
.category-btn.active {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    border-color: var(--color-primary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: var(--color-bg-1);
}

.faq-question h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-primary);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    margin: 0;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Contact Section */
.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item__icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--color-bg-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-item__content h4 {
    margin-bottom: 0.25rem;
    color: var(--color-text);
}

.contact-item__content p {
    margin: 0;
    color: var(--color-primary);
    font-weight: 600;
}

.contact-item__content small {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
}

.contact-form {
    padding: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

/* Footer */
.footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 3rem 0 1rem;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer__section h3 {
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.footer__section h4 {
    margin-bottom: 1rem;
    color: var(--color-text);
}

.footer__section p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

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

.footer__section ul li {
    margin-bottom: 0.5rem;
}

.footer__section ul li a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer__section ul li a:hover {
    color: var(--color-primary);
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.footer__social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all 0.3s ease;
}

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

.footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    flex-wrap: wrap;
    gap: 1rem;
}

.footer__trust-badges {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.trust-badge {
    background: var(--color-bg-3);
    color: var(--color-success);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal__content {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal:not(.hidden) .modal__content {
    transform: scale(1);
}

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2rem 2rem 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
}

.modal__header h2 {
    margin: 0;
}

.modal__close {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--color-secondary);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--color-text);
    transition: all 0.3s ease;
}

.modal__close:hover {
    background: var(--color-error);
    color: var(--color-white);
}

.modal__body {
    padding: 0 2rem;
}

.modal__footer {
    padding: 2rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Live Chat Widget */
.live-chat-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 10000;
}

.chat-toggle {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    border-radius: var(--radius-full);
    padding: 1rem 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    position: relative;
}

.chat-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(var(--color-teal-500-rgb), 0.3);
}

.notification-dot {
    position: absolute;
    top: 0;
    right: 0;
    width: 12px;
    height: 12px;
    background: var(--color-error);
    border-radius: 50%;
    border: 2px solid var(--color-surface);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
    100% { transform: scale(1); opacity: 1; }
}

.chat-window {
    position: absolute;
    bottom: 100%;
    right: 0;
    width: 350px;
    height: 500px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.chat-window:not(.hidden) {
    opacity: 1;
    transform: translateY(0);
}

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

.chat-agent {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.agent-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg-3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.agent-info h4 {
    margin: 0;
    font-size: var(--font-size-md);
}

.status {
    font-size: var(--font-size-xs);
    color: var(--color-success);
}

.status.online::before {
    content: '●';
    margin-right: 0.25rem;
}

.chat-close {
    width: 30px;
    height: 30px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--color-text-secondary);
}

.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
}

.message {
    margin-bottom: 1rem;
}

.message-content {
    background: var(--color-bg-1);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    max-width: 80%;
}

.bot-message {
    text-align: left;
}

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

.user-message .message-content {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    margin-left: auto;
}

.message-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
}

.quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.quick-replies button {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: all 0.3s ease;
}

.quick-replies button:hover {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    border-color: var(--color-primary);
}

.chat-input {
    padding: 1rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: 0.5rem;
}

.chat-input input {
    flex: 1;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    padding: 0.5rem;
    font-size: var(--font-size-sm);
}

.chat-input button {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    border: none;
    border-radius: var(--radius-base);
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: var(--font-size-sm);
}

/* Calculator Modal */
.calculator {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 800px;
}

.calculator-input,
.calculator-result {
    min-height: 400px;
}

.result-card {
    background: var(--color-bg-1);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    position: sticky;
    top: 2rem;
}

.result-course {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.result-price {
    margin-bottom: 1.5rem;
}

.result-features {
    text-align: left;
    margin-bottom: 2rem;
}

.result-features div {
    padding: 0.25rem 0;
    font-size: var(--font-size-sm);
}

/* Exit Intent Popup */
.exit-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.exit-popup:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.exit-popup__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.exit-popup__content {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    padding: 3rem 2rem;
    text-align: center;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.exit-popup:not(.hidden) .exit-popup__content {
    transform: scale(1);
}

.exit-popup__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 30px;
    height: 30px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--color-text-secondary);
}

.exit-popup__header h2 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.exit-offer {
    margin: 2rem 0;
}

.offer-badge {
    background: var(--color-error);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1rem;
}

.exit-offer h3 {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.countdown-timer {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.time-unit {
    background: var(--color-bg-4);
    border-radius: var(--radius-base);
    padding: 1rem;
    min-width: 80px;
}

.time-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-error);
}

.time-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    text-transform: uppercase;
}

.exit-popup__actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--color-primary);
    z-index: 10000;
    transition: width 0.3s ease;
    width: 0%;
}

/* Sticky CTA */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.sticky-cta:not(.hidden) {
    transform: translateY(0);
}

.sticky-cta__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.sticky-cta__text strong {
    color: var(--color-text);
    display: block;
}

.sticky-cta__text span {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* Animation on Scroll */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header__nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero__content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero__stats {
        justify-content: center;
    }
    
    .hero__actions {
        justify-content: center;
    }
    
    .courses__grid {
        grid-template-columns: 1fr;
    }
    
    .instructors__grid {
        grid-template-columns: 1fr;
    }
    
    .contact__content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .calculator {
        grid-template-columns: 1fr;
    }
    
    .chat-window {
        width: 90vw;
        height: 80vh;
        right: 5vw;
    }
    
    .sticky-cta__content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .live-notifications {
        right: 1rem;
        width: calc(100vw - 2rem);
    }
}

@media (max-width: 480px) {
    .section-padding {
        padding: 3rem 0;
    }
    
    .hero__stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .hero__actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn--lg {
        width: 100%;
    }
    
    .course-filter {
        flex-direction: column;
        align-items: center;
    }
    
    .faq-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .testimonials__controls {
        flex-wrap: wrap;
    }
    
    .modal__content {
        margin: 1rem;
        max-width: calc(100vw - 2rem);
    }
    
    .exit-popup__content {
        margin: 1rem;
        padding: 2rem 1rem;
    }
    
    .countdown-timer {
        flex-direction: column;
        align-items: center;
    }
}

/* Dark mode specific adjustments */
@media (prefers-color-scheme: dark) {
    .hero {
        background: linear-gradient(135deg, var(--color-bg-1) 0%, var(--color-bg-8) 100%);
    }
}

/* Print styles */
@media print {
    .header,
    .live-chat-widget,
    .sticky-cta,
    .progress-bar,
    .live-notifications {
        display: none !important;
    }
}

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

.hidden {
    display: none !important;
}

.modal {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10001;
}
.modal.hidden {
  display: none;
}
.modal__overlay {
  position: absolute;
  width: 100vw; height: 100vh;
  top: 0; left: 0;
  background: rgba(0,0,0,0.4);
}
.modal__content {
  position: relative;
  background: #fff;
  padding: 2rem;
  border-radius: 12px;
  min-width: 300px;
  max-width: 90vw;
  z-index: 1;
  box-shadow: 0 10px 32px rgba(0,0,0,0.2);
}
.modal__close {
  position: absolute;
  top: 1rem; right: 1rem;
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
}