: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 */
/* Y2K Retro Design System Variables */
:root {
  /* Y2K Color Palette */
  --color-y2k-chrome: linear-gradient(135deg, #c7d2fe 0%, #a5b4fc 25%, #8b5cf6 50%, #7c3aed 75%, #6d28d9 100%);
  --color-y2k-gold: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
  --color-y2k-blue: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 50%, #1e3a8a 100%);
  --color-y2k-green: linear-gradient(135deg, #22c55e 0%, #15803d 50%, #14532d 100%);
  --color-y2k-cyber: linear-gradient(135deg, #06b6d4 0%, #0891b2 50%, #0e7490 100%);
  --color-y2k-neon-orange: #ff6b35;
  --color-y2k-neon-blue: #00d4ff;
  --color-y2k-neon-purple: #b36bff;
  --color-y2k-neon-green: #39ff39;
  --color-y2k-dark: #1a0b2e;
  --color-y2k-darker: #16213e;
  --color-y2k-metal: #e2e8f0;
  
  /* Y2K Effects */
  --shadow-y2k: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-y2k-inset: inset 2px 2px 4px rgba(255, 255, 255, 0.3), inset -2px -2px 4px rgba(0, 0, 0, 0.3);
  --border-y2k: 2px solid;
  --border-radius-y2k: 12px;
  --glow-y2k: 0 0 20px;
  
  /* Y2K Typography */
  --font-y2k-title: 'Impact', 'Arial Black', sans-serif;
  --font-y2k-body: 'Arial', 'MS Sans Serif', sans-serif;
}

/* Global Y2K Styles */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-y2k-body);
  background: var(--color-y2k-dark);
  color: var(--color-white);
  overflow-x: hidden;
}

/* Retro Loading Screen */
.retro-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(45deg, #1a0b2e 0%, #16213e 50%, #0f172a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: loaderFadeOut 3s ease-in-out forwards;
}

.loader-content {
  text-align: center;
  color: var(--color-white);
}

.loader-logo {
  font-family: var(--font-y2k-title);
  font-size: 3rem;
  font-weight: bold;
  background: var(--color-y2k-chrome);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  text-shadow: 0 0 20px rgba(139, 92, 246, 0.5);
}

.loader-text {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: var(--color-y2k-neon-blue);
}

.loading-bar {
  width: 300px;
  height: 20px;
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid var(--color-y2k-neon-blue);
  border-radius: 10px;
  overflow: hidden;
  margin: 0 auto 1rem;
  box-shadow: var(--shadow-y2k-inset);
}

.loading-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--color-y2k-neon-blue) 0%, var(--color-y2k-neon-purple) 100%);
  width: 0%;
  animation: loadingProgress 2.5s ease-in-out forwards;
  box-shadow: 0 0 10px var(--color-y2k-neon-blue);
}

.loader-subtext {
  font-size: 0.9rem;
  color: var(--color-gray-300);
  margin-top: 1rem;
}

@keyframes loaderFadeOut {
  0%, 85% { opacity: 1; }
  100% { opacity: 0; pointer-events: none; }
}

@keyframes loadingProgress {
  0% { width: 0%; }
  100% { width: 100%; }
}

/* Header Y2K */
.header-y2k {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, var(--color-y2k-darker) 0%, rgba(22, 33, 62, 0.95) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 3px solid var(--color-y2k-neon-blue);
  z-index: 1000;
  box-shadow: var(--shadow-y2k);
}

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

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

.logo-y2k {
  display: flex;
  flex-direction: column;
}

.logo-text {
  font-family: var(--font-y2k-title);
  font-size: 1.8rem;
  font-weight: bold;
  background: var(--color-y2k-chrome);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 10px rgba(139, 92, 246, 0.3);
}

.logo-subtitle {
  font-size: 0.8rem;
  color: var(--color-y2k-neon-orange);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.version-badge {
  background: var(--color-y2k-gold);
  color: var(--color-white);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: bold;
  text-transform: uppercase;
  box-shadow: var(--shadow-y2k-inset);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.nav-menu-retro {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2rem;
  align-items: center;
}

.nav-link-retro {
  color: var(--color-white);
  text-decoration: none;
  font-weight: bold;
  text-transform: uppercase;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link-retro:hover {
  color: var(--color-y2k-neon-blue);
  text-shadow: 0 0 10px var(--color-y2k-neon-blue);
  background: rgba(0, 212, 255, 0.1);
}

.btn-nav-cta {
  background: var(--color-y2k-blue) !important;
  color: var(--color-white) !important;
  border: 2px solid var(--color-y2k-neon-blue);
  box-shadow: var(--shadow-y2k-inset);
  animation: pulseGlow 2s infinite;
}

.nav-toggle-retro {
  display: none;
  background: var(--color-y2k-blue);
  color: var(--color-white);
  border: 2px solid var(--color-y2k-neon-blue);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
}

/* Hero Section Y2K */
.hero-y2k {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--color-y2k-dark) 0%, var(--color-y2k-darker) 50%, #0f172a 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 5rem;
}

.stars-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 20%, rgba(0, 212, 255, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(179, 107, 255, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(255, 107, 53, 0.2) 0%, transparent 50%);
  animation: starsFloat 20s linear infinite;
}

@keyframes starsFloat {
  0% { transform: translateY(0px) rotate(0deg); }
  100% { transform: translateY(-10px) rotate(360deg); }
}

.hero-content-y2k {
  text-align: center;
  position: relative;
  z-index: 1;
  animation: heroSlideIn 1s ease-out;
}

@keyframes heroSlideIn {
  0% { opacity: 0; transform: translateY(50px); }
  100% { opacity: 1; transform: translateY(0); }
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.badge-new, .badge-ai, .badge-free {
  padding: 0.5rem 1rem;
  border-radius: 25px;
  font-weight: bold;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 2px solid;
  animation: badgePulse 3s infinite;
}

.badge-new {
  background: var(--color-y2k-gold);
  color: var(--color-white);
  border-color: var(--color-y2k-neon-orange);
  box-shadow: 0 0 20px rgba(255, 107, 53, 0.5);
}

.badge-ai {
  background: var(--color-y2k-chrome);
  color: var(--color-white);
  border-color: var(--color-y2k-neon-purple);
  box-shadow: 0 0 20px rgba(179, 107, 255, 0.5);
}

.badge-free {
  background: var(--color-y2k-green);
  color: var(--color-white);
  border-color: var(--color-y2k-neon-green);
  box-shadow: 0 0 20px rgba(57, 255, 57, 0.5);
}

@keyframes badgePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.hero-title-y2k {
  font-family: var(--font-y2k-title);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  margin: 2rem 0;
  text-transform: uppercase;
  letter-spacing: 3px;
}

.title-line-1 {
  display: block;
  background: var(--color-y2k-chrome);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 8px 32px rgba(139, 92, 246, 0.6);
  animation: titleGlow 2s ease-in-out infinite alternate;
}

.title-line-2 {
  display: block;
  background: var(--color-y2k-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 8px 32px rgba(245, 158, 11, 0.6);
}

@keyframes titleGlow {
  0% { filter: brightness(1); }
  100% { filter: brightness(1.2); }
}

/* Robot Mascot */
.hero-robot {
  margin: 2rem 0;
  display: flex;
  justify-content: center;
}

.robot-container {
  position: relative;
  animation: robotFloat 3s ease-in-out infinite;
}

.robot-head {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-y2k-metal) 0%, #cbd5e1 100%);
  border-radius: 15px;
  position: relative;
  border: 3px solid var(--color-y2k-neon-blue);
  box-shadow: var(--shadow-y2k-inset);
  margin: 0 auto 1rem;
}

.robot-eyes {
  display: flex;
  justify-content: space-between;
  padding: 15px 20px 0;
}

.robot-eye {
  width: 12px;
  height: 12px;
  background: var(--color-y2k-neon-blue);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-y2k-neon-blue);
  animation: robotBlink 4s infinite;
}

.robot-mouth {
  width: 30px;
  height: 15px;
  background: var(--color-y2k-neon-orange);
  border-radius: 0 0 15px 15px;
  margin: 10px auto 0;
  box-shadow: 0 0 10px var(--color-y2k-neon-orange);
}

.robot-body {
  width: 60px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-y2k-metal) 0%, #cbd5e1 100%);
  border-radius: 10px;
  margin: 0 auto;
  border: 3px solid var(--color-y2k-neon-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.robot-screen {
  background: var(--color-y2k-dark);
  color: var(--color-y2k-neon-green);
  padding: 5px 8px;
  border-radius: 5px;
  font-weight: bold;
  font-size: 0.8rem;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
}

.robot-arms {
  display: flex;
  justify-content: space-between;
  width: 100px;
  margin-top: -25px;
}

.robot-arm {
  width: 15px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-y2k-metal) 0%, #cbd5e1 100%);
  border-radius: 7px;
  border: 2px solid var(--color-y2k-neon-blue);
}

.robot-arm-left {
  transform: rotate(-15deg);
  animation: robotWaveLeft 2s ease-in-out infinite;
}

.robot-arm-right {
  transform: rotate(15deg);
  animation: robotWaveRight 2s ease-in-out infinite 0.5s;
}

@keyframes robotFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes robotBlink {
  0%, 90%, 100% { opacity: 1; }
  95% { opacity: 0; }
}

@keyframes robotWaveLeft {
  0%, 100% { transform: rotate(-15deg); }
  50% { transform: rotate(-45deg); }
}

@keyframes robotWaveRight {
  0%, 100% { transform: rotate(15deg); }
  50% { transform: rotate(45deg); }
}

/* Hero Slogan */
.hero-slogan {
  margin: 3rem 0;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.slogan-main {
  font-family: var(--font-y2k-title);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: bold;
  color: var(--color-y2k-neon-orange);
  margin-bottom: 1rem;
  text-shadow: 0 0 20px rgba(255, 107, 53, 0.6);
  animation: sloganPulse 4s ease-in-out infinite;
}

.slogan-sub {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--color-gray-300);
  line-height: 1.6;
}

@keyframes sloganPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

/* Hero Stats */
.hero-stats-retro {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.stat-retro {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(179, 107, 255, 0.1) 100%);
  border: 2px solid var(--color-y2k-neon-blue);
  border-radius: var(--border-radius-y2k);
  padding: 1.5rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-y2k-inset);
  backdrop-filter: blur(10px);
  animation: statFloat 4s ease-in-out infinite;
}

.stat-retro:nth-child(even) {
  animation-delay: 0.5s;
}

.stat-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.5));
}

.stat-value {
  font-family: var(--font-y2k-title);
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--color-white);
  margin-bottom: 0.5rem;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-y2k-neon-blue);
  text-transform: uppercase;
  letter-spacing: 1px;
}

@keyframes statFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-5px); }
}

/* Hero CTA */
.hero-cta-retro {
  margin: 3rem 0;
}

.btn-y2k {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem 3rem;
  background: var(--color-y2k-blue);
  color: var(--color-white);
  border: 3px solid var(--color-y2k-neon-blue);
  border-radius: var(--border-radius-y2k);
  font-family: var(--font-y2k-title);
  font-weight: bold;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-y2k), var(--shadow-y2k-inset);
  position: relative;
  overflow: hidden;
}

.btn-primary-y2k {
  background: var(--color-y2k-gold);
  border-color: var(--color-y2k-neon-orange);
  animation: btnGlow 3s ease-in-out infinite;
}

.btn-y2k:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.8), var(--shadow-y2k-inset);
}

.btn-y2k:active {
  transform: translateY(-1px) scale(1.02);
}

.btn-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.btn-text-main {
  font-size: 1.2rem;
  letter-spacing: 2px;
  margin-bottom: 0.3rem;
}

.btn-text-sub {
  font-size: 0.8rem;
  font-weight: normal;
  opacity: 0.9;
  text-transform: none;
}

@keyframes btnGlow {
  0%, 100% { box-shadow: var(--shadow-y2k), 0 0 20px rgba(255, 107, 53, 0.3); }
  50% { box-shadow: var(--shadow-y2k), 0 0 30px rgba(255, 107, 53, 0.6); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 10px rgba(0, 212, 255, 0.3); }
  50% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.6); }
}

.hero-specs {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: var(--color-gray-400);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Sections Y2K */
.features-y2k, .benefits-y2k, .faq-y2k, .download-y2k {
  padding: 5rem 0;
  position: relative;
}

.features-y2k {
  background: linear-gradient(135deg, var(--color-y2k-darker) 0%, var(--color-y2k-dark) 100%);
}

.benefits-y2k {
  background: linear-gradient(135deg, var(--color-y2k-dark) 0%, #0f172a 100%);
}

.faq-y2k {
  background: linear-gradient(135deg, var(--color-y2k-darker) 0%, var(--color-y2k-dark) 100%);
}

.download-y2k {
  background: linear-gradient(135deg, var(--color-y2k-dark) 0%, var(--color-y2k-darker) 100%);
}

.section-header-y2k {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title-y2k {
  font-family: var(--font-y2k-title);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: var(--color-y2k-chrome);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  text-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.section-subtitle-y2k {
  font-size: 1.2rem;
  color: var(--color-gray-300);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Grid Y2K */
.features-grid-y2k {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-box-y2k {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(179, 107, 255, 0.1) 100%);
  border: 2px solid var(--color-y2k-neon-blue);
  border-radius: var(--border-radius-y2k);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-y2k);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-box-featured {
  border-color: var(--color-y2k-neon-orange);
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.15) 0%, rgba(179, 107, 255, 0.1) 100%);
  transform: scale(1.05);
}

.feature-ribbon {
  position: absolute;
  top: 15px;
  right: -35px;
  background: var(--color-y2k-neon-orange);
  color: var(--color-white);
  padding: 5px 40px;
  font-size: 0.8rem;
  font-weight: bold;
  text-transform: uppercase;
  transform: rotate(45deg);
  box-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
}

.feature-box-y2k:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
}

.feature-icon-y2k {
  font-size: 3rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 15px rgba(0, 212, 255, 0.6));
}

.feature-title-y2k {
  font-family: var(--font-y2k-title);
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-white);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.feature-desc-y2k {
  color: var(--color-gray-300);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.feature-retro-note {
  background: rgba(57, 255, 57, 0.1);
  color: var(--color-y2k-neon-green);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: bold;
  border: 1px solid var(--color-y2k-neon-green);
}

/* Benefits Grid Y2K */
.benefits-grid-y2k {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.benefit-card-y2k {
  background: linear-gradient(135deg, rgba(179, 107, 255, 0.1) 0%, rgba(0, 212, 255, 0.1) 100%);
  border: 2px solid var(--color-y2k-neon-purple);
  border-radius: var(--border-radius-y2k);
  padding: 2rem;
  box-shadow: var(--shadow-y2k);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.benefit-card-y2k:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6);
}

.benefit-icon-y2k {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 10px rgba(179, 107, 255, 0.6));
}

.benefit-title-y2k {
  font-family: var(--font-y2k-title);
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--color-white);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.benefit-desc-y2k {
  color: var(--color-gray-300);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.comparison-bar {
  display: flex;
  justify-content: space-between;
  margin-top: 1rem;
}

.comparison-old, .comparison-new {
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: bold;
}

.comparison-old {
  background: rgba(255, 84, 89, 0.2);
  color: var(--color-red-400);
  border: 1px solid var(--color-red-400);
}

.comparison-new {
  background: rgba(57, 255, 57, 0.2);
  color: var(--color-y2k-neon-green);
  border: 1px solid var(--color-y2k-neon-green);
}

/* FAQ Y2K */
.faq-container-y2k {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item-y2k {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(179, 107, 255, 0.05) 100%);
  border: 2px solid var(--color-y2k-neon-blue);
  border-radius: var(--border-radius-y2k);
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-y2k);
  backdrop-filter: blur(10px);
}

.faq-question-y2k {
  width: 100%;
  background: none;
  border: none;
  color: var(--color-white);
  padding: 1.5rem;
  text-align: left;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.faq-question-y2k:hover {
  background: rgba(0, 212, 255, 0.1);
  color: var(--color-y2k-neon-blue);
}

.faq-arrow {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--color-y2k-neon-blue);
}

.faq-item-y2k.active .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer-y2k {
  padding: 0 1.5rem 1.5rem;
  color: var(--color-gray-300);
  line-height: 1.6;
  display: none;
  animation: fadeInDown 0.3s ease;
}

.faq-item-y2k.active .faq-answer-y2k {
  display: block;
}

@keyframes fadeInDown {
  0% { opacity: 0; transform: translateY(-10px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* Download Section Y2K */
.download-box-y2k {
  max-width: 800px;
  margin: 0 auto;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(179, 107, 255, 0.1) 100%);
  border: 3px solid var(--color-y2k-neon-blue);
  border-radius: 20px;
  padding: 3rem;
  box-shadow: var(--shadow-y2k);
  backdrop-filter: blur(10px);
  text-align: center;
}

.download-header-y2k {
  margin-bottom: 2rem;
}

.software-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.6));
}

.download-title-y2k {
  font-family: var(--font-y2k-title);
  font-size: 3rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 3px;
  background: var(--color-y2k-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  animation: downloadPulse 2s ease-in-out infinite;
}

.download-subtitle-y2k {
  font-size: 1.3rem;
  color: var(--color-y2k-neon-orange);
  margin-bottom: 2rem;
}

@keyframes downloadPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

.download-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 3rem;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--border-radius-y2k);
  border: 1px solid var(--color-y2k-neon-blue);
}

.spec-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.spec-label {
  font-weight: bold;
  color: var(--color-y2k-neon-blue);
}

.spec-value {
  color: var(--color-white);
}

.newsletter-form-y2k {
  background: rgba(0, 0, 0, 0.2);
  border: 2px solid var(--color-y2k-neon-orange);
  border-radius: var(--border-radius-y2k);
  padding: 2rem;
  margin-bottom: 2rem;
}

.form-header-y2k {
  margin-bottom: 1.5rem;
}

.form-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.form-header-y2k h3 {
  font-family: var(--font-y2k-title);
  font-size: 1.5rem;
  color: var(--color-white);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.form-input-y2k {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.input-y2k {
  flex: 1;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid var(--color-y2k-neon-blue);
  border-radius: 8px;
  color: var(--color-white);
  font-size: 1rem;
}

.input-y2k::placeholder {
  color: var(--color-gray-400);
}

.input-y2k:focus {
  outline: none;
  border-color: var(--color-y2k-neon-orange);
  box-shadow: 0 0 15px rgba(255, 107, 53, 0.3);
}

.btn-download-y2k {
  background: var(--color-y2k-gold) !important;
  border-color: var(--color-y2k-neon-orange) !important;
  animation: downloadBtnPulse 3s ease-in-out infinite;
}

@keyframes downloadBtnPulse {
  0%, 100% { box-shadow: 0 0 15px rgba(255, 107, 53, 0.3); }
  50% { box-shadow: 0 0 25px rgba(255, 107, 53, 0.6); }
}

.form-note-y2k {
  font-size: 0.9rem;
  color: var(--color-gray-300);
  line-height: 1.5;
}

.download-status-y2k {
  display: flex;
  justify-content: center;
}

.status-item-y2k {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 25px;
  font-weight: bold;
}

.status-dev {
  background: rgba(57, 255, 57, 0.1);
  color: var(--color-y2k-neon-green);
  border: 2px solid var(--color-y2k-neon-green);
  animation: statusBlink 2s ease-in-out infinite;
}

@keyframes statusBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Footer Y2K */
.footer-y2k {
  background: linear-gradient(135deg, var(--color-y2k-dark) 0%, #0f172a 100%);
  border-top: 3px solid var(--color-y2k-neon-blue);
  padding: 3rem 0 1rem;
}

.footer-content-y2k {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand-y2k h3 {
  font-family: var(--font-y2k-title);
  font-size: 1.5rem;
  color: var(--color-white);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.footer-badges {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.footer-badge {
  background: var(--color-y2k-chrome);
  color: var(--color-white);
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  font-size: 0.7rem;
  font-weight: bold;
  text-transform: uppercase;
  border: 1px solid var(--color-y2k-neon-blue);
}

.footer-links-y2k {
  display: flex;
  gap: 3rem;
}

.footer-column-y2k h4 {
  color: var(--color-y2k-neon-blue);
  margin-bottom: 1rem;
  font-weight: bold;
  text-transform: uppercase;
}

.footer-column-y2k ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-column-y2k li {
  margin-bottom: 0.5rem;
}

.footer-column-y2k a {
  color: var(--color-gray-300);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-column-y2k a:hover {
  color: var(--color-y2k-neon-blue);
  text-shadow: 0 0 5px var(--color-y2k-neon-blue);
}

.footer-bottom-y2k {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(0, 212, 255, 0.2);
}

.footer-copyright {
  color: var(--color-gray-400);
  font-size: 0.9rem;
}

.footer-retro-elements {
  display: flex;
  gap: 1rem;
}

.retro-element {
  font-size: 1.5rem;
  animation: elementFloat 3s ease-in-out infinite;
}

.retro-element:nth-child(2) {
  animation-delay: 0.5s;
}

.retro-element:nth-child(3) {
  animation-delay: 1s;
}

@keyframes elementFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-5px); }
}

/* Modal Y2K */
.modal-y2k {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-y2k.hidden {
  display: none !important;
}

.modal-backdrop-y2k {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
}

.modal-content-y2k {
  background: linear-gradient(135deg, var(--color-y2k-darker) 0%, var(--color-y2k-dark) 100%);
  border: 3px solid var(--color-y2k-neon-blue);
  border-radius: 20px;
  max-width: 500px;
  width: 100%;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-y2k);
  animation: modalSlideIn 0.3s ease-out;
}

.modal-header-y2k {
  padding: 2rem 2rem 1rem;
  text-align: center;
  position: relative;
}

.modal-icon-y2k {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.modal-header-y2k h3 {
  font-family: var(--font-y2k-title);
  font-size: 1.8rem;
  color: var(--color-white);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.modal-close-y2k {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--color-gray-400);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

.modal-close-y2k:hover {
  color: var(--color-white);
}

.modal-body-y2k {
  padding: 0 2rem 1rem;
  color: var(--color-gray-300);
  line-height: 1.6;
}

.modal-features {
  margin: 1rem 0;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  border: 1px solid var(--color-y2k-neon-green);
}

.modal-feature {
  color: var(--color-y2k-neon-green);
  margin: 0.5rem 0;
  font-weight: bold;
}

.modal-footer-y2k {
  padding: 1rem 2rem 2rem;
  text-align: center;
}

.btn-modal-y2k {
  background: var(--color-y2k-green) !important;
  border-color: var(--color-y2k-neon-green) !important;
  padding: 1rem 2rem !important;
}

@keyframes modalSlideIn {
  0% { opacity: 0; transform: scale(0.8) translateY(-50px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu-retro {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-y2k-darker);
    border-top: 3px solid var(--color-y2k-neon-blue);
    flex-direction: column;
    padding: 2rem;
    gap: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-y2k);
  }
  
  .nav-menu-retro.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-toggle-retro {
    display: block;
  }
  
  .hero-stats-retro {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid-y2k,
  .benefits-grid-y2k {
    grid-template-columns: 1fr;
  }
  
  .form-input-y2k {
    flex-direction: column;
  }
  
  .footer-content-y2k {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-links-y2k {
    justify-content: center;
    gap: 2rem;
  }
  
  .footer-bottom-y2k {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .download-specs {
    grid-template-columns: 1fr;
  }
  
  .spec-item {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }
}

/* Small mobile devices */
@media (max-width: 480px) {
  .hero-badges {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats-retro {
    grid-template-columns: 1fr;
  }
  
  .btn-y2k {
    padding: 1rem 2rem;
  }
  
  .btn-text-main {
    font-size: 1rem;
  }
}