: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 */
: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);
  --color-bg-2: rgba(245, 158, 11, 0.08);
  --color-bg-3: rgba(34, 197, 94, 0.08);
  --color-bg-4: rgba(239, 68, 68, 0.08);
  --color-bg-5: rgba(147, 51, 234, 0.08);
  --color-bg-6: rgba(249, 115, 22, 0.08);
  --color-bg-7: rgba(236, 72, 153, 0.08);
  --color-bg-8: rgba(6, 182, 212, 0.08);

  /* 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", "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);

  /* Enhanced shadows for glassmorphism */
  --shadow-glass: 0 8px 32px rgba(31, 38, 135, 0.37);
  --shadow-glow: 0 0 20px rgba(var(--color-teal-500-rgb), 0.3);
  --shadow-intense: 0 20px 40px rgba(0, 0, 0, 0.1);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    --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;

    --color-bg-1: rgba(29, 78, 216, 0.15);
    --color-bg-2: rgba(180, 83, 9, 0.15);
    --color-bg-3: rgba(21, 128, 61, 0.15);
    --color-bg-4: rgba(185, 28, 28, 0.15);
    --color-bg-5: rgba(107, 33, 168, 0.15);
    --color-bg-6: rgba(194, 65, 12, 0.15);
    --color-bg-7: rgba(190, 24, 93, 0.15);
    --color-bg-8: rgba(8, 145, 178, 0.15);
    
    --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);
    --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

    --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);
  }
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2') format('woff2');
}

/* 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;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  padding: 0;
  position: relative;
}

*, *::before, *::after {
  box-sizing: inherit;
}

/* Particle Background */
#particles-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.6;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
    opacity: 0.1;
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
    opacity: 0.6;
  }
}

/* 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);
}

/* Enhanced Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  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;
  overflow: hidden;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-700));
  color: var(--color-btn-primary-text);
  box-shadow: var(--shadow-md);
}

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

.btn--glow {
  position: relative;
  box-shadow: 0 0 20px rgba(var(--color-teal-500-rgb), 0.4);
}

.btn--glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left var(--duration-slow) var(--ease-standard);
}

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

.btn--glass {
  background: rgba(var(--color-teal-500-rgb), 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(var(--color-teal-500-rgb), 0.2);
  color: var(--color-primary);
}

.btn--glass:hover {
  background: rgba(var(--color-teal-500-rgb), 0.2);
  transform: translateY(-2px);
}

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

.btn--outline:hover {
  background: var(--color-secondary);
  transform: translateY(-1px);
}

.btn--sm {
  padding: var(--space-6) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-12) var(--space-24);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

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

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-12) var(--space-16);
  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: all var(--duration-fast) var(--ease-standard);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
  box-shadow: var(--shadow-glow);
}

.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);
}

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

/* Container layout */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-16);
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-background), var(--color-surface));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity var(--duration-normal) var(--ease-standard);
}

.loading-screen.fade-out {
  opacity: 0;
  pointer-events: none;
}

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

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

.loading-screen p {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

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

/* Enhanced Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(var(--color-cream-50), 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(var(--color-border), 0.3);
  z-index: 1000;
  transition: all var(--duration-normal) var(--ease-standard);
}

@media (prefers-color-scheme: dark) {
  .navbar {
    background: rgba(var(--color-charcoal-700), 0.8);
  }
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-brand h2 {
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: var(--font-size-xl);
  margin: 0;
}

.version-badge {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
}

.nav-links {
  display: flex;
  gap: var(--space-32);
}

.nav-link {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  transition: all var(--duration-fast) var(--ease-standard);
  cursor: pointer;
  position: relative;
  padding: var(--space-8) 0;
}

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

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

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

.nav-auth {
  display: flex;
  gap: var(--space-8);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: var(--space-4);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-8);
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--duration-fast) var(--ease-standard);
  border-radius: 2px;
}

/* Page management */
.page {
  display: none;
  padding-top: 70px;
  min-height: 100vh;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--duration-normal) var(--ease-standard);
}

.page.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

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

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-8), var(--color-bg-5));
  z-index: -1;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.3;
  animation: float-orb 8s ease-in-out infinite;
}

.orb-1 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--color-teal-400), var(--color-teal-600));
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.orb-2 {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, rgba(147, 51, 234, 0.4), rgba(59, 130, 246, 0.4));
  top: 60%;
  right: 20%;
  animation-delay: 2s;
}

.orb-3 {
  width: 150px;
  height: 150px;
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.4), rgba(245, 158, 11, 0.4));
  bottom: 20%;
  left: 30%;
  animation-delay: 4s;
}

@keyframes float-orb {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-32);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  background: rgba(var(--color-primary), 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(var(--color-primary), 0.2);
  border-radius: var(--radius-full);
  padding: var(--space-8) var(--space-16);
  margin-bottom: var(--space-24);
  animation: slide-up 0.8s var(--ease-standard) 0.2s both;
}

.hero-title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 800;
  margin-bottom: var(--space-24);
  line-height: 1.1;
}

.title-line {
  display: block;
  animation: slide-up 0.8s var(--ease-standard) 0.4s both;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-700), rgba(147, 51, 234, 0.8));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: slide-up 0.8s var(--ease-standard) 0.6s both;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-32);
  line-height: 1.6;
  animation: slide-up 0.8s var(--ease-standard) 0.8s both;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

.stat-item {
  text-align: center;
  animation: slide-up 0.8s var(--ease-standard) 1s both;
}

.stat-number {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.hero-actions {
  display: flex;
  gap: var(--space-16);
  flex-wrap: wrap;
  animation: slide-up 0.8s var(--ease-standard) 1.2s both;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: slide-up 0.8s var(--ease-standard) 1.4s both;
}

.floating-card {
  background: rgba(var(--color-surface), 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  box-shadow: var(--shadow-glass);
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
}

.main-card {
  z-index: 3;
  max-width: 300px;
}

.main-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--shadow-intense);
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-base);
}

.small-card {
  position: absolute;
  padding: var(--space-8);
  animation: float 6s ease-in-out infinite;
  cursor: pointer;
}

.card-1 {
  top: 10%;
  left: -10%;
  animation-delay: 0s;
  z-index: 2;
}

.card-2 {
  top: 20%;
  right: -15%;
  animation-delay: 2s;
  z-index: 2;
}

.card-3 {
  bottom: 10%;
  left: 5%;
  animation-delay: 4s;
  z-index: 2;
}

.mini-image {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-base);
  object-fit: cover;
}

.card-label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
  text-align: center;
}

.small-card:hover {
  transform: translateY(-5px) scale(1.1);
  box-shadow: var(--shadow-glow);
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Enhanced Features Showcase */
.features-showcase {
  padding: var(--space-32) 0;
  position: relative;
}

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

.section-badge {
  display: inline-block;
  background: rgba(var(--color-primary), 0.1);
  color: var(--color-primary);
  padding: var(--space-6) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-16);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-16);
  background: linear-gradient(135deg, var(--color-text), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-32);
}

.glass-card {
  background: rgba(var(--color-surface), 0.7);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  position: relative;
  transition: all var(--duration-normal) var(--ease-standard);
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(var(--color-primary), 0.1), transparent);
  transition: left var(--duration-slow) var(--ease-standard);
}

.glass-card:hover::before {
  left: 100%;
}

.glass-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-intense);
  border-color: rgba(var(--color-primary), 0.3);
}

.feature-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-20);
  position: relative;
  overflow: hidden;
}

.feature-icon img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-base);
}

.smart-home {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(147, 51, 234, 0.2));
}

.voice-ai {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(6, 182, 212, 0.2));
}

.location-aware {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(249, 115, 22, 0.2));
}

.location-icon {
  font-size: 32px;
}

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

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

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

.feature-list li {
  padding: var(--space-8) 0;
  color: var(--color-text-secondary);
  position: relative;
  padding-left: var(--space-20);
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: bold;
}

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

.demo-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-32);
  align-items: center;
}

.demo-text h2 {
  margin-bottom: var(--space-16);
  color: var(--color-primary);
}

.demo-stats {
  display: flex;
  gap: var(--space-24);
  margin-top: var(--space-24);
}

.demo-stat {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12) var(--space-16);
  background: rgba(var(--color-surface), 0.8);
  border-radius: var(--radius-base);
  border: 1px solid rgba(var(--color-border), 0.3);
}

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

.demo-stat strong {
  display: block;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
}

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

.demo-visual {
  display: flex;
  justify-content: center;
}

.demo-screen {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: all var(--duration-normal) var(--ease-standard);
}

.demo-screen:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-intense);
}

.demo-screen img {
  width: 100%;
  height: auto;
  display: block;
}

.demo-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-standard);
}

.demo-screen:hover .demo-overlay {
  opacity: 1;
}

.play-button {
  background: rgba(var(--color-primary), 0.9);
  border: none;
  border-radius: 50%;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  margin-bottom: var(--space-16);
}

.play-button:hover {
  transform: scale(1.1);
  background: var(--color-primary);
}

.demo-overlay span {
  color: white;
  font-weight: var(--font-weight-medium);
}

/* Accessibility Section */
.accessibility-section {
  padding: var(--space-32) 0;
}

.accessibility-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-32);
  align-items: center;
}

.accessibility-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.accessibility-text h2 {
  margin-bottom: var(--space-16);
}

.accessibility-features {
  margin: var(--space-24) 0;
}

.accessibility-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-16);
  margin-bottom: var(--space-20);
}

.accessibility-feature .feature-icon {
  font-size: var(--font-size-xl);
  width: auto;
  height: auto;
  background: none;
  margin: 0;
}

.accessibility-feature strong {
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  display: block;
}

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

/* News Preview */
.news-preview {
  padding: var(--space-32) 0;
  background: var(--color-bg-3);
}

.news-preview .section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  text-align: left;
}

.view-all-link {
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  text-decoration: none;
  transition: transform var(--duration-fast) var(--ease-standard);
}

.view-all-link:hover {
  transform: translateX(4px);
}

.news-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-24);
}

.news-card {
  background: rgba(var(--color-surface), 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-standard);
}

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

.featured-news {
  display: flex;
  flex-direction: column;
}

.news-image {
  height: 200px;
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-8));
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.news-category {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  position: absolute;
  top: var(--space-16);
  left: var(--space-16);
}

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

.news-content .news-category {
  position: static;
  display: inline-block;
  margin-bottom: var(--space-12);
}

.news-card h3 {
  margin-bottom: var(--space-12);
  color: var(--color-primary);
}

.news-meta {
  display: flex;
  gap: var(--space-16);
  margin-top: var(--space-16);
}

.news-date,
.news-read-time {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Enhanced Features Page */
.page-hero {
  text-align: center;
  padding: var(--space-32) 0;
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-8));
}

.page-hero h1 {
  font-size: clamp(var(--font-size-3xl), 4vw, 48px);
  margin-bottom: var(--space-16);
  background: linear-gradient(135deg, var(--color-text), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 800px;
  margin: 0 auto;
}

.detailed-features {
  padding: var(--space-32) 0;
}

.features-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-32);
  flex-wrap: wrap;
}

.tab-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: var(--space-12) var(--space-24);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  font-weight: var(--font-weight-medium);
}

.tab-btn:hover {
  background: var(--color-secondary);
  transform: translateY(-2px);
}

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

.tab-content {
  display: none;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--duration-normal) var(--ease-standard);
}

.tab-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.feature-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-32);
  align-items: center;
}

.feature-content h2 {
  margin-bottom: var(--space-16);
  color: var(--color-primary);
}

.feature-highlights {
  margin-top: var(--space-24);
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-16);
  margin-bottom: var(--space-20);
  padding: var(--space-16);
  background: rgba(var(--color-surface), 0.5);
  border-radius: var(--radius-base);
  border: 1px solid rgba(var(--color-border), 0.3);
}

.highlight-icon {
  font-size: var(--font-size-xl);
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.highlight-item strong {
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  display: block;
}

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

.feature-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.feature-visual img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.location-demo {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  border: 1px solid var(--color-border);
}

.location-map {
  position: relative;
  width: 300px;
  height: 200px;
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-3));
  border-radius: var(--radius-base);
  margin: 0 auto;
}

.location-pin {
  position: absolute;
  width: 40px;
  height: 40px;
  background: var(--color-surface);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--duration-normal) var(--ease-standard);
  cursor: pointer;
}

.location-pin:nth-child(1) { top: 20%; left: 20%; }
.location-pin:nth-child(2) { top: 40%; right: 30%; }
.location-pin:nth-child(3) { bottom: 20%; left: 40%; }

.location-pin.active {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  animation: pulse 2s infinite;
}

.location-pin:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-glow);
}

.visual-alerts-demo {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  padding: var(--space-24);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.alert-pattern {
  padding: var(--space-12) var(--space-16);
  border-radius: var(--radius-base);
  font-weight: var(--font-weight-medium);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-standard);
  cursor: pointer;
}

.alert-pattern.emergency {
  background: rgba(var(--color-error-rgb), 0.1);
  border: 2px solid rgba(var(--color-error-rgb), 0.3);
  color: var(--color-error);
  animation: flash 1.5s infinite;
}

.alert-pattern.doorbell {
  background: rgba(var(--color-success-rgb), 0.1);
  border: 2px solid rgba(var(--color-success-rgb), 0.3);
  color: var(--color-success);
}

.alert-pattern.phone {
  background: rgba(var(--color-info-rgb), 0.1);
  border: 2px solid rgba(var(--color-info-rgb), 0.3);
  color: var(--color-info);
}

@keyframes flash {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Voice Accessibility Page */
.voice-features {
  padding: var(--space-32) 0;
}

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

.voice-card {
  background: rgba(var(--color-surface), 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-standard);
}

.voice-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(var(--color-primary), 0.3);
}

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

.voice-card h3 {
  margin-bottom: var(--space-12);
  color: var(--color-primary);
}

.voice-commands,
.compatibility-list,
.braille-devices,
.tutorial-topics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  justify-content: center;
  margin-top: var(--space-16);
}

.command,
.compat-item,
.device,
.topic {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.voice-demo {
  text-align: center;
  background: var(--color-bg-1);
  padding: var(--space-32);
  border-radius: var(--radius-lg);
}

.voice-demo h2 {
  margin-bottom: var(--space-16);
}

.voice-demo-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  border: 1px solid var(--color-border);
  max-width: 400px;
  margin: 0 auto;
}

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

.mic-button {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-700));
  border: none;
  color: var(--color-btn-primary-text);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  margin-bottom: var(--space-16);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-16);
}

.mic-button:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-glow);
}

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

/* News Page */
.news-content {
  padding: var(--space-32) 0;
}

.news-categories {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-32);
  flex-wrap: wrap;
}

.category-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.category-btn:hover {
  background: var(--color-secondary);
}

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

.news-articles {
  display: grid;
  gap: var(--space-24);
}

.news-article {
  background: rgba(var(--color-surface), 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-standard);
}

.news-article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(var(--color-primary), 0.3);
}

.news-article.featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.article-image {
  height: 250px;
  overflow: hidden;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

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

.article-category {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.article-date,
.article-read-time {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.news-article h2,
.news-article h3 {
  margin-bottom: var(--space-12);
  color: var(--color-primary);
}

.read-more-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  margin-top: var(--space-16);
  transition: transform var(--duration-fast) var(--ease-standard);
}

.read-more-btn:hover {
  transform: translateX(4px);
}

/* Developer Page */
.developer-content {
  padding: var(--space-32) 0;
}

.developer-profile {
  max-width: 800px;
  margin: 0 auto;
}

.profile-card {
  background: rgba(var(--color-surface), 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  box-shadow: var(--shadow-glass);
}

.profile-header {
  display: flex;
  gap: var(--space-24);
  margin-bottom: var(--space-32);
  align-items: center;
}

.profile-avatar {
  position: relative;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-700));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-btn-primary-text);
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  box-shadow: var(--shadow-lg);
}

.avatar-status {
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  background: var(--color-success);
  border-radius: 50%;
  border: 3px solid var(--color-surface);
}

.profile-info h2 {
  margin-bottom: var(--space-8);
}

.profile-title {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
  font-size: var(--font-size-lg);
}

.profile-badges {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.badge {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.profile-bio,
.profile-focus,
.profile-skills,
.profile-achievements,
.profile-projects,
.profile-contact {
  margin-bottom: var(--space-32);
}

.profile-bio h3,
.profile-focus h3,
.profile-skills h3,
.profile-achievements h3,
.profile-projects h3,
.profile-contact h3 {
  margin-bottom: var(--space-16);
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--space-8);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-16);
}

.skill-item {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12);
  background: var(--color-bg-1);
  border-radius: var(--radius-base);
  border: 1px solid rgba(var(--color-border), 0.3);
}

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

.achievements-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.achievement-item {
  display: flex;
  gap: var(--space-16);
  padding: var(--space-16);
  background: var(--color-bg-3);
  border-radius: var(--radius-base);
  border: 1px solid rgba(var(--color-border), 0.3);
}

.achievement-icon {
  font-size: var(--font-size-xl);
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.achievement-item strong {
  display: block;
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

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

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-16);
}

.project-card {
  background: var(--color-bg-2);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-base);
  padding: var(--space-16);
  transition: all var(--duration-normal) var(--ease-standard);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--color-primary), 0.3);
}

.project-icon {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-12);
  display: block;
}

.project-card h4 {
  margin-bottom: var(--space-8);
  color: var(--color-primary);
}

.project-card p {
  margin-bottom: var(--space-12);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.project-tech {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.tech-tag {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
}

.contact-links {
  display: flex;
  gap: var(--space-16);
  flex-wrap: wrap;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-16);
  background: var(--color-bg-1);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-base);
  text-decoration: none;
  color: var(--color-text);
  transition: all var(--duration-normal) var(--ease-standard);
}

.contact-link:hover {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.contact-icon {
  font-size: var(--font-size-lg);
}

/* Contact Page */
.contact-content {
  padding: var(--space-32) 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-32);
}

.contact-form {
  background: rgba(var(--color-surface), 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  box-shadow: var(--shadow-glass);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
}

.contact-card {
  background: rgba(var(--color-surface), 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
}

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

.contact-item {
  display: flex;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.contact-icon {
  font-size: var(--font-size-xl);
  width: 24px;
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

.contact-item p {
  margin: 0 0 var(--space-8) 0;
  color: var(--color-text-secondary);
}

.faq-quick {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.faq-quick-item {
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-base);
  overflow: hidden;
}

.faq-quick-item summary {
  padding: var(--space-12);
  background: var(--color-bg-1);
  cursor: pointer;
  font-weight: var(--font-weight-medium);
  transition: background-color var(--duration-fast) var(--ease-standard);
}

.faq-quick-item summary:hover {
  background: var(--color-bg-2);
}

.faq-quick-item p {
  padding: var(--space-12);
  margin: 0;
  color: var(--color-text-secondary);
  background: var(--color-surface);
}

/* Auth pages */
.auth-section {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  padding: var(--space-32) 0;
  background: linear-gradient(135deg, var(--color-bg-1), var(--color-bg-8));
}

.auth-container {
  background: rgba(var(--color-surface), 0.9);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  max-width: 400px;
  width: 100%;
  margin: 0 auto;
  box-shadow: var(--shadow-glass);
}

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

.auth-form {
  margin-bottom: var(--space-24);
}

.auth-divider {
  text-align: center;
  margin: var(--space-24) 0;
  position: relative;
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border);
}

.auth-divider span {
  background: var(--color-surface);
  padding: 0 var(--space-16);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.oauth-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.oauth-btn {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.auth-footer {
  text-align: center;
  margin-top: var(--space-24);
  color: var(--color-text-secondary);
}

/* Footer */
.footer {
  background: rgba(var(--color-surface), 0.9);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(var(--color-border), 0.3);
  padding: var(--space-32) 0 var(--space-16);
  margin-top: var(--space-32);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-32);
  margin-bottom: var(--space-24);
}

.footer-brand h3 {
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-8);
}

.footer-brand p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
}

.social-links {
  display: flex;
  gap: var(--space-12);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-bg-1);
  border-radius: var(--radius-base);
  text-decoration: none;
  font-size: var(--font-size-lg);
  transition: all var(--duration-normal) var(--ease-standard);
}

.social-links a:hover {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-24);
}

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

.footer-section a {
  display: block;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-standard);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--space-16);
  border-top: 1px solid rgba(var(--color-border), 0.3);
  color: var(--color-text-secondary);
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 1;
  transition: opacity var(--duration-normal) var(--ease-standard);
}

.modal.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-content {
  background: rgba(var(--color-surface), 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(var(--color-border), 0.3);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  margin: var(--space-16);
  box-shadow: var(--shadow-intense);
  animation: modal-appear 0.3s var(--ease-standard);
}

@keyframes modal-appear {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-20);
  border-bottom: 1px solid rgba(var(--color-border), 0.3);
}

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

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

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

.modal-footer {
  padding: var(--space-20);
  border-top: 1px solid rgba(var(--color-border), 0.3);
  text-align: right;
}

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

.fade-in {
  animation: fadeIn var(--duration-normal) var(--ease-standard);
}

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

/* Responsive design */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--space-24);
    text-align: center;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .demo-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .accessibility-content {
    grid-template-columns: 1fr;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-detail {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .profile-header {
    flex-direction: column;
    text-align: center;
  }
  
  .news-article.featured {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .features-tabs {
    gap: var(--space-4);
  }
  
  .tab-btn {
    padding: var(--space-8) var(--space-12);
    font-size: var(--font-size-sm);
  }
  
  .voice-grid {
    grid-template-columns: 1fr;
  }
  
  .news-categories {
    gap: var(--space-4);
  }
  
  .category-btn {
    padding: var(--space-6) var(--space-12);
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }
  
  .auth-container {
    margin: var(--space-16);
    padding: var(--space-24);
  }
  
  .demo-stats {
    flex-direction: column;
    align-items: center;
  }
  
  .contact-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--space-24) 0;
    min-height: 90vh;
  }
  
  .hero-title {
    font-size: clamp(28px, 8vw, 36px);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
  }
  
  .page-hero {
    padding: var(--space-24) 0;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .container {
    padding: 0 var(--space-12);
  }
  
  .floating-card.small-card {
    display: none;
  }
  
  .news-preview .section-header {
    flex-direction: column;
    gap: var(--space-16);
    align-items: center;
    text-align: center;
  }
}