: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 */
/* Apple-Inspired Premium Design System */
:root {
  /* Enhanced Color System */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;

  --accent-50: #ecfeff;
  --accent-100: #cffafe;
  --accent-200: #a5f3fc;
  --accent-300: #67e8f9;
  --accent-400: #22d3ee;
  --accent-500: #06b6d4;
  --accent-600: #0891b2;
  --accent-700: #0e7490;
  --accent-800: #155e75;
  --accent-900: #164e63;

  /* Glassmorphism Variables */
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
  --glass-backdrop: blur(20px);
  
  /* Apple-inspired Spacing Scale */
  --space-px: 1px;
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 1.75rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Typography Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Advanced Animations */
  --duration-75: 75ms;
  --duration-100: 100ms;
  --duration-150: 150ms;
  --duration-200: 200ms;
  --duration-300: 300ms;
  --duration-500: 500ms;
  --duration-700: 700ms;
  --duration-1000: 1000ms;

  --ease-linear: linear;
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Apple-style Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.15);

  /* Border Radius Scale */
  --radius-xs: 0.125rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --glass-bg: rgba(0, 0, 0, 0.12);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Base Styles with Apple Typography */
* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  font-size: 16px;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-background);
  overflow-x: hidden;
  transition: all var(--duration-300) var(--ease-out);
}

/* Enhanced 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: 0;
}

/* Focus Styles */
*:focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Theme Toggle */
.theme-toggle {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: var(--space-2);
  cursor: pointer;
  transition: all var(--duration-200) var(--ease-out);
  width: 3.5rem;
  height: 2rem;
}

.theme-toggle:hover {
  transform: scale(1.05);
  background: var(--glass-bg);
}

.theme-toggle-track {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(45deg, var(--primary-400), var(--accent-400));
}

.theme-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1.25rem;
  height: 1.25rem;
  background: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-300) var(--ease-spring);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .theme-toggle-thumb {
  transform: translateX(1.5rem);
}

.theme-icon {
  width: 0.75rem;
  height: 0.75rem;
  position: absolute;
  transition: opacity var(--duration-200) var(--ease-out);
}

.light-icon {
  opacity: 1;
  color: #f59e0b;
}

.dark-icon {
  opacity: 0;
  color: #6366f1;
}

[data-theme="dark"] .light-icon {
  opacity: 0;
}

[data-theme="dark"] .dark-icon {
  opacity: 1;
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 1001;
  background: transparent;
}

.scroll-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
  width: 0%;
  transition: width var(--duration-75) var(--ease-out);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Glass Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  transition: all var(--duration-300) var(--ease-out);
}

.glass-nav {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  transition: transform var(--duration-200) var(--ease-out);
}

.nav-brand:hover {
  transform: scale(1.02);
}

.brand-logo {
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-icon {
  font-size: 1.5rem;
  z-index: 1;
  position: relative;
}

.brand-glow {
  position: absolute;
  inset: -4px;
  background: linear-gradient(45deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-full);
  opacity: 0;
  transition: opacity var(--duration-300) var(--ease-out);
  filter: blur(8px);
}

.nav-brand:hover .brand-glow {
  opacity: 0.3;
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-text {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

.brand-tagline {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  position: relative;
  padding: var(--space-2) var(--space-4);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-lg);
  transition: all var(--duration-200) var(--ease-out);
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--glass-bg);
  opacity: 0;
  transition: opacity var(--duration-200) var(--ease-out);
  border-radius: var(--radius-lg);
}

.nav-link:hover::before,
.nav-link.active::before {
  opacity: 1;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-600);
  transform: translateY(-1px);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.language-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

/* Mobile Navigation */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--duration-200) var(--ease-out);
}

.hamburger-line {
  width: 1.5rem;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: all var(--duration-300) var(--ease-out);
  transform-origin: center;
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border-left: 1px solid var(--glass-border);
  transition: right var(--duration-500) var(--ease-spring);
  z-index: 101;
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--glass-border);
}

.mobile-nav-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--duration-200) var(--ease-out);
}

.mobile-nav-close:hover {
  background: var(--glass-bg);
}

.mobile-nav-links {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav-link {
  padding: var(--space-4);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-lg);
  transition: all var(--duration-200) var(--ease-out);
}

.mobile-nav-link:hover {
  background: var(--glass-bg);
  transform: translateX(var(--space-2));
}

/* Language Menu */
.language-menu {
  position: absolute;
  top: 100%;
  right: 0;
  width: 200px;
  margin-top: var(--space-2);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--duration-300) var(--ease-spring);
  z-index: 102;
}

.language-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.language-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  transition: background var(--duration-200) var(--ease-out);
  font-size: var(--text-sm);
}

.language-option:first-child {
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.language-option:last-child {
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.language-option:hover {
  background: var(--glass-bg);
}

.language-option.active {
  background: var(--primary-50);
  color: var(--primary-600);
}

.flag {
  font-size: 1.25rem;
}

/* Glass Cards */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--glass-shadow);
  transition: all var(--duration-300) var(--ease-out);
}

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

/* Enhanced Buttons */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--duration-200) var(--ease-out);
  overflow: hidden;
  user-select: none;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--duration-200) var(--ease-out);
}

.btn:hover::before {
  opacity: 1;
}

.btn--primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn--primary::before {
  background: linear-gradient(135deg, var(--primary-700), var(--primary-600));
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn--secondary {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  color: var(--color-text);
}

.btn--secondary::before {
  background: var(--glass-bg);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline::before {
  background: var(--glass-bg);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn--ghost::before {
  background: var(--glass-bg);
}

.btn--glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  color: var(--color-text);
}

.btn--hero {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  font-weight: 700;
  border-radius: var(--radius-2xl);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn--full-width {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn-glow {
  position: absolute;
  inset: -2px;
  background: linear-gradient(45deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-2xl);
  opacity: 0;
  filter: blur(8px);
  transition: opacity var(--duration-300) var(--ease-out);
  z-index: -1;
}

.btn--primary:hover .btn-glow {
  opacity: 0.5;
}

.btn-ripple {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: inherit;
  pointer-events: none;
}

/* Enhanced Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 8rem 0 4rem;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--primary-50) 0%,
    var(--accent-50) 25%,
    var(--primary-100) 50%,
    var(--accent-100) 75%,
    var(--primary-50) 100%
  );
  background-size: 400% 400%;
  animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(59, 130, 246, 0.15) 1px, transparent 0);
  background-size: 20px 20px;
  animation: patternMove 30s linear infinite;
}

@keyframes patternMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(20px, 20px); }
}

.floating-elements {
  position: absolute;
  inset: 0;
}

.floating-element {
  position: absolute;
  opacity: 0.1;
  animation: float var(--duration, 8s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

.floating-element:nth-child(1) {
  top: 20%;
  right: 10%;
  width: 300px;
  height: 200px;
}

.floating-element:nth-child(2) {
  bottom: 20%;
  left: 10%;
  width: 250px;
  height: 180px;
}

.floating-element img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-3xl);
  filter: blur(1px);
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-10px) rotate(1deg); }
  66% { transform: translateY(5px) rotate(-1deg); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Enhanced Animations */
.animate-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp var(--duration-700) var(--ease-spring) forwards;
  animation-delay: var(--delay, 0ms);
}

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

.glass-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary-600);
  margin-bottom: var(--space-6);
  box-shadow: var(--glass-shadow);
}

.badge-glow {
  position: absolute;
  inset: -2px;
  background: linear-gradient(45deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-full);
  opacity: 0;
  filter: blur(8px);
  animation: glowPulse 3s ease-in-out infinite;
  z-index: -1;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.3; }
}

.hero-title {
  margin-bottom: var(--space-6);
}

.title-line {
  display: block;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.accent-text {
  background: linear-gradient(135deg, var(--accent-600), var(--accent-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-8);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.stat-card {
  padding: var(--space-4) var(--space-6);
  text-align: center;
  min-width: 140px;
  transition: transform var(--duration-200) var(--ease-out);
}

.stat-card:hover {
  transform: translateY(-2px);
}

.stat-number {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--primary-600);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

.hero-preview {
  max-width: 600px;
  margin: 0 auto;
}

.preview-container {
  padding: var(--space-6);
  margin-bottom: var(--space-8);
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.preview-controls {
  display: flex;
  gap: var(--space-2);
}

.control-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
}

.control-dot.red { background: #ef4444; }
.control-dot.yellow { background: #f59e0b; }
.control-dot.green { background: #10b981; }

.preview-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
}

.preview-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  background: var(--glass-bg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--glass-border);
}

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

.gesture-visual {
  font-size: 2rem;
  margin-bottom: var(--space-2);
  animation: wave 2s ease-in-out infinite;
}

@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-10deg); }
  75% { transform: rotate(10deg); }
}

.gesture-text {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary-600);
}

.gesture-wave {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  border: 2px solid var(--primary-300);
  opacity: 0.7;
  animation: ripple 2s ease-out infinite;
}

@keyframes ripple {
  0% {
    transform: scale(0.8);
    opacity: 0.7;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

.translation-arrow {
  color: var(--primary-500);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

.sound-waves {
  display: flex;
  gap: 2px;
  justify-content: center;
  margin-bottom: var(--space-2);
}

.wave {
  width: 3px;
  height: 20px;
  background: var(--accent-500);
  border-radius: var(--radius-full);
  animation: soundWave 1.5s ease-in-out infinite;
}

.wave:nth-child(2) { animation-delay: 0.1s; }
.wave:nth-child(3) { animation-delay: 0.2s; }
.wave:nth-child(4) { animation-delay: 0.3s; }

@keyframes soundWave {
  0%, 100% { height: 8px; }
  50% { height: 24px; }
}

.speech-text {
  font-size: var(--text-sm);
  color: var(--accent-600);
  font-style: italic;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--duration-200) var(--ease-out);
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40%, 43% { transform: translateX(-50%) translateY(-10px); }
  70% { transform: translateX(-50%) translateY(-5px); }
  90% { transform: translateX(-50%) translateY(-2px); }
}

.hero-scroll-indicator:hover {
  color: var(--primary-600);
}

.scroll-mouse {
  width: 24px;
  height: 40px;
  border: 2px solid currentColor;
  border-radius: var(--radius-full);
  position: relative;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-wheel {
  width: 3px;
  height: 8px;
  background: currentColor;
  border-radius: var(--radius-full);
  animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
  0% {
    transform: translateY(0);
    opacity: 0;
  }
  40% {
    opacity: 1;
  }
  80% {
    transform: translateY(16px);
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

/* Section Styling */
.section-padding {
  padding: var(--space-24) 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section-header {
  margin-bottom: var(--space-16);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary-600);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto;
}

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

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-6);
}

.feature-card {
  padding: var(--space-8);
  position: relative;
  transition: all var(--duration-300) var(--ease-out);
  cursor: pointer;
}

.feature-card:hover {
  transform: translateY(-4px) scale(1.02);
}

.feature-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.feature-icon {
  position: relative;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-100), var(--accent-100));
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-600);
  transition: all var(--duration-300) var(--ease-out);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  color: white;
  transform: scale(1.1);
}

.icon-glow {
  position: absolute;
  inset: -4px;
  background: linear-gradient(45deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-2xl);
  opacity: 0;
  filter: blur(8px);
  transition: opacity var(--duration-300) var(--ease-out);
  z-index: -1;
}

.feature-card:hover .icon-glow {
  opacity: 0.4;
}

.feature-badge {
  background: var(--primary-100);
  color: var(--primary-700);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
}

.feature-card h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.feature-card p {
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

.feature-demo-btn {
  display: flex;
  justify-content: flex-start;
}

/* Technology Section */
.tech-timeline {
  margin-bottom: var(--space-16);
}

.timeline-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-bottom: var(--space-16);
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 200px;
}

.step-icon {
  width: 80px;
  height: 80px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-600);
  margin-bottom: var(--space-4);
  transition: all var(--duration-300) var(--ease-out);
}

.flow-step.active .step-icon,
.flow-step:hover .step-icon {
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  color: white;
  transform: scale(1.05);
}

.step-content h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

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

.flow-arrow {
  display: flex;
  align-items: center;
  color: var(--primary-500);
}

.arrow-line {
  width: 40px;
  height: 2px;
  background: currentColor;
  position: relative;
}

.arrow-head {
  width: 0;
  height: 0;
  border-left: 8px solid currentColor;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

.tech-stacks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-8);
}

.tech-category h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-6);
  color: var(--color-text);
}

.tech-grid {
  display: grid;
  gap: var(--space-4);
}

.tech-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  transition: all var(--duration-200) var(--ease-out);
}

.tech-item:hover {
  transform: translateX(var(--space-2));
}

.tech-icon {
  font-size: var(--text-2xl);
  flex-shrink: 0;
}

.tech-info h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--color-text);
}

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

/* Demo Section */
.demo-interface {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-8);
}

.demo-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.camera-section {
  grid-column: 1 / -1;
}

.camera-container {
  position: relative;
  aspect-ratio: 4/3;
  background: #000;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.camera-feed {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.camera-overlay {
  position: absolute;
  inset: 0;
  display: none;
}

.camera-status {
  text-align: center;
  color: var(--color-text-secondary);
}

.status-icon {
  width: 80px;
  height: 80px;
  background: var(--glass-bg);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4) auto;
  color: var(--primary-600);
}

.camera-status h4 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.camera-frame-glow {
  position: absolute;
  inset: -2px;
  background: linear-gradient(45deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-2xl);
  opacity: 0;
  filter: blur(8px);
  transition: opacity var(--duration-300) var(--ease-out);
  z-index: -1;
}

.camera-container.active .camera-frame-glow {
  opacity: 0.3;
}

.camera-controls {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
}

.recognition-panel,
.speech-panel {
  padding: var(--space-6);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.panel-header h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.recognition-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-text-secondary);
  transition: background var(--duration-200) var(--ease-out);
}

.status-dot.active {
  background: var(--primary-500);
  box-shadow: 0 0 10px var(--primary-300);
}

.current-gesture {
  min-height: 120px;
  background: var(--glass-bg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  transition: all var(--duration-300) var(--ease-out);
}

.gesture-placeholder {
  text-align: center;
  color: var(--color-text-secondary);
}

.gesture-placeholder i {
  font-size: 2rem;
  margin-bottom: var(--space-2);
  opacity: 0.5;
}

.confidence-section {
  margin-bottom: var(--space-6);
}

.confidence-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.confidence-bar {
  position: relative;
  height: 8px;
  background: var(--glass-bg);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

.confidence-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
  width: 0%;
  transition: width var(--duration-300) var(--ease-out);
  border-radius: var(--radius-full);
}

.confidence-value {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary-600);
  text-align: center;
}

.volume-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.volume-slider {
  width: 80px;
}

.speech-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.demo-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.chat-interface {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--glass-border);
}

.chat-header h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.chat-messages {
  flex: 1;
  padding: var(--space-4);
  max-height: 300px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.chat-messages::-webkit-scrollbar {
  width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
  background: var(--glass-bg);
  border-radius: var(--radius-full);
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--primary-300);
  border-radius: var(--radius-full);
}

.system-message {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--primary-50);
  border-radius: var(--radius-lg);
  color: var(--primary-700);
  font-size: var(--text-sm);
}

.chat-stats {
  display: flex;
  justify-content: space-around;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--glass-border);
}

.stat {
  text-align: center;
}

.stat-value {
  display: block;
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--primary-600);
  line-height: 1;
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.gesture-guide h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  padding: 0 var(--space-6);
  color: var(--color-text);
}

.gesture-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: 0 var(--space-6) var(--space-6);
}

.gesture-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--glass-bg);
  border-radius: var(--radius-lg);
  transition: all var(--duration-200) var(--ease-out);
  cursor: pointer;
}

.gesture-item:hover {
  background: var(--primary-50);
  transform: translateX(var(--space-2));
}

.gesture-emoji {
  font-size: var(--text-2xl);
  flex-shrink: 0;
}

.gesture-info h4 {
  font-size: var(--text-base);
  font-weight: 600;
  margin: 0 0 var(--space-1) 0;
  color: var(--color-text);
}

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

/* Analytics Section */
.analytics-dashboard {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.stats-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
}

.stat-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-6);
  transition: all var(--duration-300) var(--ease-out);
}

.stat-card:hover {
  transform: translateY(-2px) scale(1.02);
}

.stat-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-100), var(--accent-100));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-600);
  flex-shrink: 0;
}

.stat-content {
  flex: 1;
}

.stat-number {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.stat-change {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
}

.stat-change.positive {
  color: var(--accent-600);
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-8);
}

.chart-card {
  padding: var(--space-6);
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.chart-header h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.chart-controls {
  display: flex;
  gap: var(--space-2);
}

.chart-btn {
  padding: var(--space-1) var(--space-3);
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--duration-200) var(--ease-out);
}

.chart-btn.active,
.chart-btn:hover {
  background: var(--primary-500);
  border-color: var(--primary-500);
  color: white;
}

.chart-legend {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-sm);
}

.usage-map {
  padding: var(--space-6);
  position: relative;
}

.map-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.map-header h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.map-stats {
  display: flex;
  gap: var(--space-4);
}

.map-stat {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.map-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-text-secondary);
}

.map-dot.active {
  background: var(--primary-500);
  box-shadow: 0 0 10px var(--primary-300);
}

.world-map {
  position: relative;
  width: 100%;
  height: 300px;
  background: var(--glass-bg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--glass-border);
}

.usage-indicator {
  position: absolute;
  cursor: pointer;
}

.indicator-dot {
  width: 12px;
  height: 12px;
  background: var(--primary-500);
  border-radius: var(--radius-full);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.2);
}

.indicator-pulse {
  position: absolute;
  inset: -8px;
  border: 2px solid var(--primary-300);
  border-radius: var(--radius-full);
  animation: mapPulse 2s ease-out infinite;
}

@keyframes mapPulse {
  0% {
    transform: scale(0.5);
    opacity: 1;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

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

.testimonials-track {
  display: flex;
  transition: transform var(--duration-500) var(--ease-out);
}

.testimonial-card {
  flex: 0 0 100%;
  padding: var(--space-8);
  margin: 0 var(--space-4);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.user-avatar {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--glass-bg);
}

.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-info h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 0 0 var(--space-1) 0;
  color: var(--color-text);
}

.user-info p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-2) 0;
}

.rating {
  display: flex;
  gap: var(--space-1);
}

.star {
  width: 16px;
  height: 16px;
  color: var(--color-text-secondary);
}

.star.filled {
  color: #f59e0b;
}

blockquote {
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-text);
  margin: 0 0 var(--space-6) 0;
  font-style: italic;
}

.testimonial-stats {
  display: flex;
  gap: var(--space-6);
}

.testimonial-stats .stat {
  text-align: left;
}

.testimonials-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.testimonial-btn {
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-200) var(--ease-out);
}

.testimonial-btn:hover {
  background: var(--primary-500);
  border-color: var(--primary-500);
  color: white;
}

.testimonials-dots {
  display: flex;
  gap: var(--space-2);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--duration-200) var(--ease-out);
}

.dot.active {
  background: var(--primary-500);
}

/* Pricing Section */
.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.toggle-label {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-secondary);
}

.toggle-switch {
  position: relative;
  width: 60px;
  height: 32px;
  background: var(--glass-bg);
  border-radius: var(--radius-full);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: background var(--duration-300) var(--ease-out);
}

.toggle-slider {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 28px;
  height: 28px;
  background: white;
  border-radius: var(--radius-full);
  transition: transform var(--duration-300) var(--ease-spring);
  box-shadow: var(--shadow-sm);
}

.toggle-switch.active {
  background: var(--primary-500);
}

.toggle-switch.active .toggle-slider {
  transform: translateX(28px);
}

.discount-badge {
  background: var(--accent-500);
  color: white;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-left: var(--space-2);
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-16);
}

.pricing-card {
  padding: var(--space-8);
  position: relative;
  transition: all var(--duration-300) var(--ease-out);
}

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-card.popular {
  transform: scale(1.05);
  border-color: var(--primary-500);
}

.pricing-card.popular:hover {
  transform: scale(1.05) translateY(-4px);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.pricing-header h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}

.currency {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--primary-600);
}

.amount {
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--primary-600);
  line-height: 1;
}

.period {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.plan-description {
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0;
}

.pricing-features {
  margin-bottom: var(--space-8);
}

.feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  color: var(--color-text-secondary);
}

.feature i {
  width: 16px;
  height: 16px;
  color: var(--primary-500);
  flex-shrink: 0;
}

.pricing-btn {
  width: 100%;
}

.pricing-faq {
  padding: var(--space-8);
  max-width: 800px;
  margin: 0 auto;
}

.pricing-faq h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-8);
  color: var(--color-text);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.faq-item h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.faq-item p {
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
}

.contact-info {
  display: grid;
  gap: var(--space-6);
}

.contact-card {
  padding: var(--space-6);
  text-align: center;
  transition: all var(--duration-300) var(--ease-out);
}

.contact-card:hover {
  transform: translateY(-2px);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-100), var(--accent-100));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-600);
  margin: 0 auto var(--space-4) auto;
}

.contact-card h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.contact-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.contact-link {
  color: var(--primary-600);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--duration-200) var(--ease-out);
}

.contact-link:hover {
  color: var(--primary-700);
}

.btn-link {
  background: none;
  border: none;
  cursor: pointer;
}

.contact-form-container {
  position: relative;
}

.contact-form {
  padding: var(--space-8);
}

.form-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.form-header h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: all var(--duration-200) var(--ease-out);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 20px;
  height: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--duration-200) var(--ease-out);
}

.checkmark::after {
  content: '✓';
  color: white;
  font-weight: bold;
  opacity: 0;
  transition: opacity var(--duration-200) var(--ease-out);
}

.checkbox-label input:checked + .checkmark {
  background: var(--primary-500);
  border-color: var(--primary-500);
}

.checkbox-label input:checked + .checkmark::after {
  opacity: 1;
}

.form-submit-btn {
  position: relative;
  overflow: hidden;
}

.btn-text,
.btn-loader {
  transition: all var(--duration-200) var(--ease-out);
}

.btn-loader {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.spinner {
  animation: spin 1s linear infinite;
}

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

.form-success {
  padding: var(--space-8);
  text-align: center;
}

.success-icon {
  width: 80px;
  height: 80px;
  background: var(--accent-500);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin: 0 auto var(--space-6) auto;
  animation: successBounce 0.6s var(--ease-bounce);
}

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

.form-success h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--accent-600);
  margin-bottom: var(--space-4);
}

.form-success p {
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

/* Footer */
.footer {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.footer-background {
  position: absolute;
  inset: 0;
}

.footer-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-900), var(--accent-900));
  opacity: 0.9;
}

.footer-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.05) 1px, transparent 0);
  background-size: 30px 30px;
}

.footer-content {
  position: relative;
  z-index: 1;
  padding: var(--space-16) 0 var(--space-8);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: var(--space-8);
}

.footer-main {
  padding-right: var(--space-8);
}

.footer-brand {
  margin-bottom: var(--space-6);
}

.footer-description {
  font-size: var(--text-base);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-8);
}

.footer-stats {
  display: flex;
  gap: var(--space-8);
}

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

.footer-stat .stat-number {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: white;
  line-height: 1;
  margin-bottom: var(--space-1);
}

.footer-stat .stat-label {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

.footer-column h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: white;
}

.footer-column a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  transition: color var(--duration-200) var(--ease-out);
}

.footer-column a:hover {
  color: white;
}

.footer-developer {
  position: relative;
  z-index: 1;
  padding: var(--space-8) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.developer-card {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.05);
  max-width: 600px;
  margin: 0 auto;
}

.developer-avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--glass-bg);
}

.developer-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.developer-info h4 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-1);
}

.developer-info > p {
  color: rgba(255, 255, 255, 0.8);
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.developer-bio p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.developer-achievements {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.achievement {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
}

.achievement i {
  color: var(--accent-400);
}

.developer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.developer-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--duration-200) var(--ease-out);
}

.developer-link:hover {
  color: white;
}

.footer-bottom {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-8) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.footer-legal p {
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.legal-links {
  display: flex;
  gap: var(--space-4);
}

.legal-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--duration-200) var(--ease-out);
}

.legal-links a:hover {
  color: white;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: all var(--duration-200) var(--ease-out);
}

.social-link:hover {
  background: var(--primary-500);
  transform: translateY(-2px);
}

/* Accessibility Menu */
.accessibility-menu {
  position: fixed;
  bottom: var(--space-4);
  left: var(--space-4);
  z-index: 1000;
}

.accessibility-toggle {
  width: 56px;
  height: 56px;
  background: var(--primary-500);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all var(--duration-200) var(--ease-out);
}

.accessibility-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

.accessibility-panel {
  position: absolute;
  bottom: 70px;
  left: 0;
  width: 280px;
  padding: var(--space-6);
  transition: all var(--duration-300) var(--ease-spring);
}

.accessibility-panel.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.accessibility-panel h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.accessibility-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.control-group {
  display: flex;
  align-items: center;
}

.control-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text);
}

/* Chat Widget */
.chat-widget {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  z-index: 1000;
}

.chat-toggle {
  position: relative;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all var(--duration-200) var(--ease-out);
}

.chat-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

.chat-notification {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 20px;
  height: 20px;
  background: var(--accent-500);
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 600;
  animation: notificationPulse 2s ease-in-out infinite;
}

@keyframes notificationPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

.chat-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 350px;
  height: 450px;
  display: flex;
  flex-direction: column;
  transition: all var(--duration-300) var(--ease-spring);
}

.chat-window.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.chat-window .chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.chat-window .chat-header h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.chat-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--duration-200) var(--ease-out);
}

.chat-close:hover {
  background: var(--glass-bg);
  color: var(--color-text);
}

.chat-window .chat-messages {
  flex: 1;
  padding: var(--space-4);
  overflow-y: auto;
}

.chat-message {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.chat-message.bot {
  align-self: flex-start;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--primary-500);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  flex-shrink: 0;
}

.message-content {
  flex: 1;
  background: var(--glass-bg);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) var(--radius-sm);
}

.message-content p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.chat-input {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-4);
  border-top: 1px solid var(--glass-border);
  border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
}

.chat-input input {
  flex: 1;
  padding: var(--space-3);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.chat-input input:focus {
  outline: none;
  border-color: var(--primary-500);
}

.chat-input button {
  width: 40px;
  height: 40px;
  background: var(--primary-500);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-200) var(--ease-out);
}

.chat-input button:hover {
  background: var(--primary-600);
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  inset: 0;
  background: var(--color-background);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--duration-500) var(--ease-out);
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

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

.loading-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.loading-logo .brand-icon {
  font-size: 3rem;
}

.loading-logo .brand-text {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-text);
}

.loading-spinner {
  position: relative;
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-6) auto;
}

.spinner-ring {
  position: absolute;
  inset: 0;
  border: 3px solid transparent;
  border-radius: var(--radius-full);
}

.spinner-ring:nth-child(1) {
  border-top-color: var(--primary-500);
  animation: spinRing 1.5s linear infinite;
}

.spinner-ring:nth-child(2) {
  border-right-color: var(--accent-500);
  animation: spinRing 1.5s linear infinite reverse;
  animation-delay: -0.5s;
}

.spinner-ring:nth-child(3) {
  border-bottom-color: var(--primary-300);
  animation: spinRing 1.5s linear infinite;
  animation-delay: -1s;
}

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

.loading-text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.loading-progress {
  width: 200px;
  height: 4px;
  background: var(--glass-bg);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 0 auto;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
  width: 0%;
  transition: width var(--duration-300) var(--ease-out);
  border-radius: var(--radius-full);
}

/* Notification Container */
.notification-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.notification {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 400px;
  pointer-events: auto;
  transform: translateX(100%);
  transition: transform var(--duration-300) var(--ease-spring);
}

.notification.show {
  transform: translateX(0);
}

.notification-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.notification.success .notification-icon {
  color: var(--accent-500);
}

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

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

.notification.info .notification-icon {
  color: var(--primary-500);
}

.notification-content {
  flex: 1;
}

.notification-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.notification-message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.notification-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-200) var(--ease-out);
}

.notification-close:hover {
  background: var(--glass-bg);
  color: var(--color-text);
}

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

.animate-counter {
  transition: all var(--duration-1000) var(--ease-out);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--space-4);
  }
  
  .nav-content {
    padding: 0 var(--space-4);
  }
  
  .desktop-nav {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .tech-stacks {
    grid-template-columns: 1fr;
  }
  
  .demo-interface {
    grid-template-columns: 1fr;
  }
  
  .demo-main {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    text-align: center;
  }
  
  .footer-main {
    padding-right: 0;
  }
  
  .developer-card {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

@media (max-width: 768px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .timeline-flow {
    flex-direction: column;
  }
  
  .flow-arrow {
    transform: rotate(90deg);
  }
  
  .stats-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .charts-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-cards {
    grid-template-columns: 1fr;
  }
  
  .contact-info {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .chat-window {
    width: 320px;
  }
  
  .accessibility-panel {
    width: 250px;
  }
}

@media (max-width: 640px) {
  .stats-cards {
    grid-template-columns: 1fr;
  }
  
  .contact-info {
    grid-template-columns: 1fr;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-stats {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .legal-links {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .chat-window {
    width: 300px;
    height: 400px;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .theme-toggle,
  .scroll-progress,
  .accessibility-menu,
  .chat-widget,
  .loading-screen,
  .notification-container {
    display: none !important;
  }
  
  .hero-section {
    min-height: auto;
    padding: var(--space-8) 0;
  }
  
  .glass-card {
    background: white;
    border: 1px solid #e5e7eb;
    box-shadow: none;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  ::before,
  ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .hero-gradient {
    animation: none;
  }
  
  .hero-pattern {
    animation: none;
  }
  
  .floating-element {
    animation: none;
  }
  
  .notification-pulse {
    animation: none;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .glass-card {
    border-width: 2px;
  }
  
  .btn {
    border-width: 2px;
  }
  
  .form-control {
    border-width: 2px;
  }
}

/* Dark Mode Overrides */
[data-theme="dark"] {
  --color-background: #0f172a;
  --color-surface: #1e293b;
  --color-text: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-border: #334155;
  --color-card-border: #334155;
}

[data-theme="dark"] .hero-gradient {
  background: linear-gradient(
    135deg,
    #1e293b 0%,
    #0f172a 25%,
    #1e293b 50%,
    #0f172a 75%,
    #1e293b 100%
  );
}

[data-theme="dark"] .hero-pattern {
  background-image: radial-gradient(circle at 1px 1px, rgba(59, 130, 246, 0.1) 1px, transparent 0);
}