: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;

  /* Touch target sizes for mobile */
  --touch-target-min: 44px;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Loading States */
  --loading-bg: rgba(var(--color-slate-500-rgb), 0.1);
  --loading-shimmer: rgba(var(--color-teal-500-rgb), 0.3);

  /* 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;
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  transform: translateY(-1px);
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.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-cream-50);
  border: 1px solid rgba(var(--color-teal-500-rgb), 0.3);
}

.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 */
/* VW-Inspired Professional Design */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, var(--color-slate-900) 0%, var(--color-charcoal-700) 100%);
    color: var(--color-text);
    font-family: var(--font-family-base);
    line-height: var(--line-height-normal);
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(19, 52, 59, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    padding: var(--space-16) 0;
}

.nav-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--space-24);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    letter-spacing: var(--letter-spacing-tight);
}

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

.nav-link {
    color: var(--color-white);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--duration-normal) var(--ease-standard);
    position: relative;
}

.nav-link:hover {
    color: var(--color-teal-300);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--duration-normal) var(--ease-standard);
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--color-slate-900) 0%, var(--color-charcoal-800) 50%, var(--color-slate-900) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03' fill-rule='evenodd'%3E%3Cpath d='M20 20c0-11.046-8.954-20-20-20s-20 8.954-20 20 8.954 20 20 20 20-8.954 20-20z'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 8vw, 4rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-16);
    color: var(--color-primary);
    letter-spacing: var(--letter-spacing-tight);
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-24);
    color: var(--color-text-secondary);
    line-height: var(--line-height-tight);
}

.hero-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-32);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--space-16);
    justify-content: center;
    flex-wrap: wrap;
}

/* Sections */
.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--space-32);
    color: var(--color-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

/* Projects Section */
.projects-section {
    padding: 100px 0;
    background: var(--color-charcoal-800);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-24);
    max-width: 1200px;
    margin: 0 auto;
}

.category-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-24);
    border: 1px solid var(--color-card-border);
    transition: all var(--duration-normal) var(--ease-standard);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    min-height: var(--touch-target-min);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--duration-normal) var(--ease-standard);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.category-card:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    transform: translateY(-2px);
}

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

.category-card:hover::before {
    transform: scaleX(1);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: var(--space-16);
    display: block;
}

.category-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-8);
    color: var(--color-text);
}

.category-count {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-12);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-16);
    line-height: 1.6;
}

.automotive-indicator {
    margin-top: var(--space-16);
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
    background: var(--loading-bg);
    border-radius: var(--radius-base);
}

.loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent,
        var(--loading-shimmer),
        transparent
    );
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Loading skeleton for category cards */
.category-card.loading {
    min-height: 200px;
}

.category-card.loading .category-title,
.category-card.loading .category-description,
.category-card.loading .category-count {
    background: var(--loading-bg);
    color: transparent;
    border-radius: var(--radius-sm);
}

/* Scroll-triggered animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.animate {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-left.animate {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-right.animate {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scale-in.animate {
    opacity: 1;
    transform: scale(1);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-20);
}

.modal.hidden {
    display: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    max-width: 900px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    z-index: 2001;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: var(--space-24);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--color-bg-1);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--space-8);
    border-radius: var(--radius-base);
    transition: background var(--duration-fast) var(--ease-standard);
}

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

.modal-body {
    padding: var(--space-24);
}

/* Project Details */
.project-detail {
    margin-bottom: var(--space-32);
    padding-bottom: var(--space-24);
    border-bottom: 1px solid var(--color-border);
}

.project-detail:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-16);
    flex-wrap: wrap;
    gap: var(--space-12);
}

.project-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-4);
}

.project-meta {
    display: flex;
    gap: var(--space-16);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    flex-wrap: wrap;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-8);
    margin: var(--space-16) 0;
}

.tech-badge {
    background: var(--color-bg-2);
    color: var(--color-text);
    padding: var(--space-4) var(--space-12);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border: 1px solid var(--color-border);
}

.key-results {
    margin: var(--space-16) 0;
}

.key-results h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-12);
    color: var(--color-text);
}

.results-list {
    list-style: none;
    padding: 0;
}

.results-list li {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-8);
    padding: var(--space-8);
    background: var(--color-bg-3);
    border-radius: var(--radius-base);
    border-left: 3px solid var(--color-success);
}

.results-list li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: bold;
    margin-right: var(--space-12);
    font-size: var(--font-size-lg);
}

.automotive-relevance {
    background: var(--color-bg-1);
    padding: var(--space-16);
    border-radius: var(--radius-base);
    border-left: 4px solid var(--color-primary);
    margin-top: var(--space-16);
}

.automotive-relevance h4 {
    color: var(--color-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-8);
}

/* Summary Section */
.summary-section {
    padding: 100px 0;
    background: var(--color-slate-900);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-24);
    margin-bottom: var(--space-32);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.stat-card {
    text-align: center;
    background: var(--color-surface);
    padding: var(--space-24);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
    transition: transform var(--duration-normal) var(--ease-standard);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    display: block;
    line-height: 1;
    margin-bottom: var(--space-8);
}

.stat-number::after {
    content: '+';
    font-size: 1.5rem;
    opacity: 0.7;
}

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

/* Differentiators */
.differentiators {
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: var(--space-32);
}

.differentiators h3 {
    font-size: var(--font-size-2xl);
    text-align: center;
    margin-bottom: var(--space-32);
    color: var(--color-text);
}

.differentiators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-20);
}

.differentiator-card {
    background: var(--color-surface);
    padding: var(--space-20);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
    transition: all var(--duration-normal) var(--ease-standard);
    position: relative;
    overflow: hidden;
}

.differentiator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--duration-normal) var(--ease-standard);
}

.differentiator-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.differentiator-card:hover::before {
    transform: scaleX(1);
}

.differentiator-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-12);
    display: block;
}

.differentiator-card h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-8);
    color: var(--color-text);
}

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

/* Infotainment Skills Section */
.infotainment-skills {
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: var(--space-32);
    padding: 40px;
    background: var(--color-white);
    border-radius: 16px;
    border: 2px solid var(--color-card-border);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.infotainment-skills h3 {
    font-size: var(--font-size-2xl);
    text-align: center;
    margin-bottom: var(--space-32);
    color: var(--color-text);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-24);
}

.skill-category {
    background: var(--color-surface);
    padding: var(--space-24);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
    transition: all var(--duration-normal) var(--ease-standard);
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--duration-normal) var(--ease-standard);
}

.skill-category:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.skill-category:hover::before {
    transform: scaleX(1);
}

.skill-category h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-16);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

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

.skill-category li {
    display: flex;
    align-items: center;
    padding: var(--space-8) 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    border-bottom: 1px solid rgba(var(--color-brown-600-rgb), 0.08);
}

.skill-category li:last-child {
    border-bottom: none;
}

.skill-category li::before {
    content: '▸';
    color: var(--color-primary);
    margin-right: var(--space-12);
    font-weight: bold;
    font-size: var(--font-size-lg);
}

/* Technologies Section */
.technologies-section {
  padding: 80px 20px;
  background: linear-gradient(135deg, var(--color-cream-50) 0%, var(--color-white) 100%);
  position: relative;
}

.tech-categories {
  display: grid;
  gap: 30px;
  margin: 40px 0 60px;
}

.tech-category {
  background: var(--color-white);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 20px rgba(var(--color-slate-900-rgb), 0.08);
  transition: all 0.3s ease;
}

.tech-category:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(var(--color-slate-900-rgb), 0.12);
}

.tech-category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.tech-category-icon {
  font-size: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-teal-300), var(--color-teal-500));
  border-radius: 12px;
}

.tech-category h3 {
  flex: 1;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.tech-count {
  padding: 4px 12px;
  background: var(--color-teal-300);
  color: var(--color-white);
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
}

.tech-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tech-badge {
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(var(--color-teal-500-rgb), 0.08), rgba(var(--color-teal-300-rgb), 0.08));
  border: 1px solid rgba(var(--color-teal-500-rgb), 0.2);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-teal-700);
  transition: all 0.3s ease;
  cursor: default;
}

.tech-badge:hover {
  background: var(--color-teal-300);
  color: var(--color-white);
  transform: scale(1.05);
}

.tech-highlights {
  margin-top: 60px;
  padding: 40px;
  background: linear-gradient(135deg, var(--color-teal-500), var(--color-teal-700));
  border-radius: 20px;
  color: var(--color-white);
}

.tech-highlights h3 {
  font-size: 1.5rem;
  margin-bottom: 30px;
  text-align: center;
  color: var(--color-white);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.highlight-item:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(4px);
}

.highlight-icon {
  font-size: 20px;
}

.highlight-text {
  font-size: 0.95rem;
  font-weight: 500;
}

/* Responsive Design for Technologies Section */
@media (min-width: 768px) {
  .tech-categories {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .tech-categories {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Timeline Section */
.timeline-section {
  padding: 80px 20px;
  background: var(--color-cream-50);
}

.timeline {
  position: relative;
  padding: 40px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, var(--color-teal-300), var(--color-teal-500));
}

.timeline-item {
  position: relative;
  margin-bottom: 60px;
  width: 45%;
}

.timeline-item:nth-child(odd) {
  margin-left: 0;
}

.timeline-item:nth-child(even) {
  margin-left: 55%;
}

.timeline-marker {
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--color-teal-300);
  border: 3px solid var(--color-white);
  border-radius: 50%;
  top: 0;
  box-shadow: 0 0 0 4px rgba(var(--color-teal-300-rgb), 0.2);
}

.timeline-item:nth-child(odd) .timeline-marker {
  right: -62px;
}

.timeline-item:nth-child(even) .timeline-marker {
  left: -62px;
}

.timeline-marker.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 4px rgba(var(--color-teal-300-rgb), 0.2); }
  50% { box-shadow: 0 0 0 12px rgba(var(--color-teal-300-rgb), 0); }
  100% { box-shadow: 0 0 0 4px rgba(var(--color-teal-300-rgb), 0.2); }
}

.timeline-content {
  background: var(--color-white);
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(var(--color-slate-900-rgb), 0.08);
  transition: all 0.3s ease;
}

.timeline-content:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(var(--color-slate-900-rgb), 0.12);
}

.timeline-content h3 {
  font-size: 1.2rem;
  color: var(--color-text);
  margin-bottom: 8px;
}

.timeline-date {
  color: var(--color-teal-500);
  font-weight: 500;
  font-size: 0.875rem;
}

.timeline-content p {
  margin: 12px 0;
  color: var(--color-text-secondary);
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.timeline-tag {
  padding: 4px 10px;
  background: rgba(var(--color-teal-500-rgb), 0.1);
  color: var(--color-teal-700);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
}

.timeline-item.future .timeline-content {
  border: 2px dashed var(--color-teal-300);
  background: rgba(var(--color-teal-300-rgb), 0.05);
}

/* Tech Search and Filter */
.tech-controls {
  margin: 30px 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tech-search input {
  width: 100%;
  padding: 12px 20px;
  border: 2px solid rgba(var(--color-teal-500-rgb), 0.2);
  border-radius: 10px;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.tech-search input:focus {
  outline: none;
  border-color: var(--color-teal-500);
  box-shadow: 0 0 0 4px rgba(var(--color-teal-500-rgb), 0.1);
}

.tech-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-btn {
  padding: 8px 16px;
  background: var(--color-white);
  border: 2px solid rgba(var(--color-teal-500-rgb), 0.2);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

.filter-btn.active {
  background: var(--color-teal-500);
  color: var(--color-white);
  border-color: var(--color-teal-500);
}

.filter-btn:hover:not(.active) {
  border-color: var(--color-teal-300);
  background: rgba(var(--color-teal-300-rgb), 0.1);
}

/* Skills with Progress Bars */
.skills-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
  border-bottom: 3px solid rgba(var(--color-teal-500-rgb), 0.2);
  background: var(--color-cream-50);
  padding: 8px;
  border-radius: 8px 8px 0 0;
}

.skill-tab {
  padding: 12px 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  transition: all 0.3s ease;
  border-radius: 6px;
}

.skill-tab.active {
  color: var(--color-white);
  background: var(--color-teal-500);
}

.skill-tab:hover:not(.active) {
  background: rgba(var(--color-teal-500-rgb), 0.1);
  color: var(--color-teal-700);
}

.skills-content {
  position: relative;
  background: var(--color-white);
  padding: 24px;
  border-radius: 0 0 8px 8px;
  border: 1px solid rgba(var(--color-teal-500-rgb), 0.2);
  border-top: none;
}

.skill-panel {
  display: none;
}

.skill-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.skill-item {
  margin-bottom: 25px;
  padding: 16px;
  background: var(--color-cream-50);
  border-radius: 8px;
  border-left: 4px solid var(--color-teal-500);
}

.skill-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.skill-name {
  font-weight: 600;
  color: var(--color-text);
  font-size: 1.05rem;
}

.skill-level {
  font-size: 0.875rem;
  color: var(--color-teal-600);
  font-weight: 600;
}

.skill-bar {
  height: 10px;
  background: rgba(var(--color-teal-500-rgb), 0.1);
  border-radius: 5px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--color-teal-500), var(--color-teal-300));
  border-radius: 5px;
  width: 0;
  transition: width 1.5s ease-out;
}

.skill-progress.animate {
  width: var(--progress);
}


/* Responsive Timeline */
@media (max-width: 768px) {
  .timeline::before {
    left: 40px;
  }
  
  .timeline-item {
    width: 100%;
    padding-left: 80px;
    margin-left: 0 !important;
  }
  
  .timeline-marker {
    left: 30px !important;
  }
  
  .timeline-item:nth-child(odd) .timeline-marker,
  .timeline-item:nth-child(even) .timeline-marker {
    left: 30px !important;
  }
}

/* Loading Animation */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-white);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease;
}

.page-loader.fade-out {
  opacity: 0;
  pointer-events: none;
}

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

.spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(var(--color-teal-500-rgb), 0.1);
  border-top-color: var(--color-teal-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 20px;
}

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

.loader-content p {
  color: var(--color-text);
  font-weight: 500;
}

/* Tooltip Styles */
.tooltip {
  animation: tooltipFadeIn 0.2s ease;
}

@keyframes tooltipFadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Contact CTA */
.contact-cta {
    text-align: center;
    background: var(--color-bg-1);
    padding: var(--space-32);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    max-width: 700px;
    margin: 60px auto 0;
}

.contact-cta h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-16);
    color: var(--color-primary);
}

.contact-cta p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hero {
        padding: 80px 0;
        min-height: 80vh;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
        gap: var(--space-12);
    }

    .btn {
        min-width: 200px;
        padding: var(--space-12) var(--space-20);
    }

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

    .category-card {
        padding: var(--space-20);
        text-align: center;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-16);
    }

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

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

    .project-header {
        flex-direction: column;
        text-align: center;
    }

    .modal-content {
        margin: var(--space-8);
        max-height: 95vh;
        border-radius: var(--radius-md);
    }

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

    .modal-body {
        padding: 0 var(--space-20) var(--space-20);
    }

    .projects-section {
        padding: 60px 0;
    }

    .summary-section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--space-12);
    }

    .hero-subtitle {
        font-size: var(--font-size-xl);
        margin-bottom: var(--space-16);
    }

    .hero-description {
        font-size: var(--font-size-base);
        margin-bottom: var(--space-24);
    }

    .btn {
        min-width: 100%;
        font-size: var(--font-size-base);
    }

    .section-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--space-24);
    }

    .category-card {
        padding: var(--space-16);
    }

    .category-icon {
        font-size: 2.5rem;
        margin-bottom: var(--space-12);
    }

    .modal-content {
        margin: var(--space-4);
        max-height: 98vh;
    }

    .modal-header {
        padding: var(--space-16);
    }

    .modal-body {
        padding: 0 var(--space-16) var(--space-16);
    }
}

/* Touch improvements for mobile */
@media (hover: none) and (pointer: coarse) {
    .category-card:hover {
        transform: none;
        box-shadow: none;
    }

    .category-card:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }

    .btn:hover {
        transform: none;
        box-shadow: none;
    }

    .btn:active {
        transform: scale(0.98);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Animation Classes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Counter Animation */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-number.counting {
    animation: countUp 0.5s ease-out;
}

/* Skill Badges (replacing progress bars) */
.skill-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.skill-badge.productive {
  background: rgba(34, 197, 94, 0.15);
  color: #16a34a;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.skill-badge.experience {
  background: rgba(59, 130, 246, 0.15);
  color: #2563eb;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.skill-badge.transfer {
  background: rgba(245, 158, 11, 0.15);
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.skill-badge.learning {
  background: rgba(107, 114, 128, 0.15);
  color: #6b7280;
  border: 1px solid rgba(107, 114, 128, 0.3);
}


/* Skill Evidence Text */
.skill-evidence {
  margin-top: 8px;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
  padding-left: 8px;
  border-left: 2px solid var(--color-primary);
}

/* Infotainment Fit Section */
.infotainment-fit {
  margin-top: 60px;
  padding: 40px;
  background: linear-gradient(135deg, rgba(var(--color-teal-500-rgb), 0.15), rgba(var(--color-teal-500-rgb), 0.25));
  border-radius: 16px;
  border: 2px solid rgba(var(--color-teal-500-rgb), 0.4);
}

.infotainment-fit h3 {
  font-size: 1.875rem;
  margin-bottom: 16px;
  color: var(--color-primary);
  text-align: center;
  font-weight: var(--font-weight-bold);
}

.fit-intro {
  text-align: center;
  font-size: 1.125rem;
  margin-bottom: 32px;
  color: var(--color-text-secondary);
}

.fit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.fit-item {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 2px solid var(--color-card-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.fit-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  border-color: var(--color-primary);
}

.fit-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  text-align: center;
}

.fit-item h4 {
  font-size: 1.125rem;
  margin-bottom: 12px;
  color: var(--color-text);
}

.fit-item p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.fit-mapping {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  background: rgba(var(--color-teal-500-rgb), 0.05);
  border-radius: 8px;
  border-left: 3px solid var(--color-primary);
  font-size: 0.8125rem;
  font-weight: 500;
}

.fit-arrow {
  color: var(--color-text-secondary);
}

.fit-target {
  color: var(--color-primary);
  font-weight: 600;
}

.fit-conclusion {
  background: var(--color-white);
  padding: 24px;
  border-radius: 12px;
  border: 3px solid var(--color-primary);
  box-shadow: 0 4px 16px rgba(var(--color-teal-500-rgb), 0.2);
  text-align: center;
}

.fit-conclusion h4 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--color-text);
}

.fit-conclusion p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.fit-conclusion strong {
  color: var(--color-text);
  display: block;
  margin-bottom: 8px;
}

.highlight-text {
  display: inline-block;
  margin-top: 8px;
  padding: 8px 16px;
  background: linear-gradient(90deg, var(--color-teal-500), var(--color-teal-300));
  color: white;
  border-radius: 8px;
  font-weight: 600;
}


/* Responsive adjustments */
@media (max-width: 768px) {
  .infotainment-fit {
    padding: 24px;
  }

  .fit-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .fit-item {
    padding: 16px;
  }

  .fit-conclusion {
    padding: 16px;
  }

  .highlight-text {
    font-size: 0.875rem;
    padding: 6px 12px;
  }
}

/* Image Carousel - Auto-scroll */
.image-carousel {
  margin-top: 60px;
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 0 0 20px;
}

/* Carousel Navigation Buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(var(--color-slate-900-rgb), 0.8);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--color-primary);
}

.carousel-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-50%) scale(1.1);
}

.carousel-btn:active {
  transform: translateY(-50%) scale(0.95);
}

.carousel-btn-prev {
  left: 10px;
}

.carousel-btn-next {
  right: 10px;
}

.carousel-btn-play-pause {
  bottom: 20px;
  top: auto;
  left: 50%;
  transform: translateX(-50%);
}

.carousel-btn-play-pause:hover {
  transform: translateX(-50%) scale(1.1);
}

.carousel-btn-play-pause:active {
  transform: translateX(-50%) scale(0.95);
}

.hidden {
  display: none;
}

.carousel-container {
  width: 100%;
  overflow: hidden;
  padding: 20px 0;
}

.carousel-track {
  display: flex;
  gap: 20px;
  animation: scroll 18s linear infinite;
  will-change: transform;
}

.carousel-track img {
  height: 200px;
  width: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.carousel-track img:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 24px rgba(var(--color-teal-500-rgb), 0.4);
}

@keyframes scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Pause on hover */
.carousel-track:hover {
  animation-play-state: paused;
}

/* Responsive - Mobile optimization */
@media (max-width: 768px) {
  .image-carousel {
    margin-top: 40px;
  }

  .carousel-track img {
    height: 150px;
  }

  .carousel-track {
    gap: 15px;
    animation: scroll 18s linear infinite;
  }
}

@media (max-width: 480px) {
  .carousel-track img {
    height: 120px;
  }

  .carousel-track {
    gap: 10px;
    animation: scroll 18s linear infinite;
  }
}