: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 */
/* Reset and Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

/* Scroll Progress Indicator */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-teal-400));
  z-index: 9999;
  transition: width 0.1s ease;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all var(--duration-normal) var(--ease-standard);
}

@media (prefers-color-scheme: dark) {
  .navbar {
    background: rgba(38, 40, 40, 0.95);
    border-bottom: 1px solid var(--color-border);
  }
}

.nav-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-24);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo .logo-text {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary), var(--color-teal-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-32);
  align-items: center;
}

.nav-menu a {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
}

.nav-menu a::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--duration-normal) var(--ease-standard);
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
  width: 20px;
}

.nav-menu a:hover {
  color: var(--color-primary);
  background: var(--color-secondary);
}

/* Glowing menu items with different colors */
.nav-menu li:nth-child(1) a:hover {
  color: #ff6b6b;
  text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
  box-shadow: 0 0 20px rgba(255, 107, 107, 0.3);
}

.nav-menu li:nth-child(2) a:hover {
  color: #4ecdc4;
  text-shadow: 0 0 10px rgba(78, 205, 196, 0.5);
  box-shadow: 0 0 20px rgba(78, 205, 196, 0.3);
}

.nav-menu li:nth-child(3) a:hover {
  color: #45b7d1;
  text-shadow: 0 0 10px rgba(69, 183, 209, 0.5);
  box-shadow: 0 0 20px rgba(69, 183, 209, 0.3);
}

.nav-menu li:nth-child(4) a:hover {
  color: #96ceb4;
  text-shadow: 0 0 10px rgba(150, 206, 180, 0.5);
  box-shadow: 0 0 20px rgba(150, 206, 180, 0.3);
}

.nav-menu li:nth-child(5) a:hover {
  color: #feca57;
  text-shadow: 0 0 10px rgba(254, 202, 87, 0.5);
  box-shadow: 0 0 20px rgba(254, 202, 87, 0.3);
}

.nav-menu li:nth-child(6) a:hover {
  color: #ff9ff3;
  text-shadow: 0 0 10px rgba(255, 159, 243, 0.5);
  box-shadow: 0 0 20px rgba(255, 159, 243, 0.3);
}

.nav-menu li:nth-child(7) a:hover {
  color: #54a0ff;
  text-shadow: 0 0 10px rgba(84, 160, 255, 0.5);
  box-shadow: 0 0 20px rgba(84, 160, 255, 0.3);
}

.nav-menu li:nth-child(8) a:hover {
  color: #5f27cd;
  text-shadow: 0 0 10px rgba(95, 39, 205, 0.5);
  box-shadow: 0 0 20px rgba(95, 39, 205, 0.3);
}

/* Active states with glow */
.nav-menu li:nth-child(1) a.active {
  color: #ff6b6b;
  text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
}

.nav-menu li:nth-child(2) a.active {
  color: #4ecdc4;
  text-shadow: 0 0 10px rgba(78, 205, 196, 0.5);
}

.nav-menu li:nth-child(3) a.active {
  color: #45b7d1;
  text-shadow: 0 0 10px rgba(69, 183, 209, 0.5);
}

.nav-menu li:nth-child(4) a.active {
  color: #96ceb4;
  text-shadow: 0 0 10px rgba(150, 206, 180, 0.5);
}

.nav-menu li:nth-child(5) a.active {
  color: #feca57;
  text-shadow: 0 0 10px rgba(254, 202, 87, 0.5);
}

.nav-menu li:nth-child(6) a.active {
  color: #ff9ff3;
  text-shadow: 0 0 10px rgba(255, 159, 243, 0.5);
}

.nav-menu li:nth-child(7) a.active {
  color: #54a0ff;
  text-shadow: 0 0 10px rgba(84, 160, 255, 0.5);
}

.nav-menu li:nth-child(8) a.active {
  color: #5f27cd;
  text-shadow: 0 0 10px rgba(95, 39, 205, 0.5);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-8);
  gap: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--duration-normal) var(--ease-standard);
  border-radius: 1px;
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-surface) 100%);
  padding-top: 72px;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.1;
  pointer-events: none;
}

.neural-network {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#neuralCanvas {
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 0 var(--space-24);
}

/* Profile Image Styles */
.profile-image {
  margin-bottom: var(--space-24);
  display: flex;
  justify-content: center;
}

.profile-image img {
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  filter: drop-shadow(0 8px 16px rgba(33, 128, 141, 0.3));
  transition: all var(--duration-normal) var(--ease-standard);
  animation: profileFloat 6s ease-in-out infinite;
  object-fit: cover;
  box-shadow: 0 0 0 1px rgba(33, 128, 141, 0.3);
}

.profile-image img:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 12px 24px rgba(33, 128, 141, 0.4));
  box-shadow: 0 0 0 2px rgba(33, 128, 141, 0.5);
}

@keyframes profileFloat {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* Responsive profile image */
@media (max-width: 768px) {
  .profile-image img {
    width: 100px;
    height: 100px;
  }
}

@media (max-width: 480px) {
  .profile-image img {
    width: 80px;
    height: 80px;
  }
}

/* Animated Text Styles */
.animated-text {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-8);
  opacity: 0;
  animation: fadeInUp 0.8s ease 2s both;
}

.text-segment {
  position: relative;
  display: inline-block;
  animation: textGlow 3s ease-in-out infinite;
  animation-delay: calc(var(--segment-index, 0) * 0.5s);
}

.text-segment:nth-child(1) { --segment-index: 0; }
.text-segment:nth-child(3) { --segment-index: 1; }
.text-segment:nth-child(5) { --segment-index: 2; }

.text-separator {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  animation: separatorPulse 2s ease-in-out infinite;
  animation-delay: calc(var(--segment-index, 0) * 0.5s + 0.25s);
}

@keyframes textGlow {
  0%, 100% {
    color: var(--color-text-secondary);
    text-shadow: 0 0 5px rgba(33, 128, 141, 0.3);
    transform: translateY(0);
  }
  50% {
    color: var(--color-primary);
    text-shadow: 0 0 15px rgba(33, 128, 141, 0.6), 0 0 25px rgba(33, 128, 141, 0.4);
    transform: translateY(-2px);
  }
}

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

/* Enhanced text animation for mobile */
@media (max-width: 768px) {
  .animated-text {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .text-separator {
    display: none;
  }
  
  .text-segment {
    animation: mobileTextGlow 2s ease-in-out infinite;
  }
}

@keyframes mobileTextGlow {
  0%, 100% {
    color: var(--color-text-secondary);
    text-shadow: 0 0 3px rgba(33, 128, 141, 0.3);
  }
  50% {
    color: var(--color-primary);
    text-shadow: 0 0 10px rgba(33, 128, 141, 0.5);
  }
}

.hero-title {
  font-size: clamp(var(--font-size-4xl), 8vw, 80px);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-24);
  letter-spacing: var(--letter-spacing-tight);
}

.typewriter {
  display: inline-block;
  border-right: 3px solid var(--color-primary);
  animation: typewriter 3s steps(13) 1s both, blink 1s infinite 4s;
  overflow: hidden;
  white-space: nowrap;
}

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

@keyframes blink {
  50% { border-color: transparent; }
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
  opacity: 0;
  animation: fadeInUp 0.8s ease 2s both;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-32);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  animation: fadeInUp 0.8s ease 2.5s both;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-24);
  margin-bottom: var(--space-32);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  animation: fadeInUp 0.8s ease 3s both;
}

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

.stat-value {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.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);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.8s ease 3.5s both;
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-32);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  animation: bounce 2s infinite;
}

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

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(45deg);
}

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

/* Container */
.container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-24);
}

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

.section-title {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
  font-weight: var(--font-weight-bold);
  text-align: center;
  margin-bottom: var(--space-32);
  letter-spacing: var(--letter-spacing-tight);
  background: linear-gradient(135deg, var(--color-text), var(--color-text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* About Section */
.about-section {
  background: var(--color-surface);
}

.about-content {
  max-width: 1000px;
  margin: 0 auto;
  margin-bottom: var(--space-32);
}

.about-text {
  margin-bottom: var(--space-32);
}

.about-summary {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  text-align: center;
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-24);
  max-width: 800px;
  margin: 0 auto;
}

.stat-item {
  background: var(--color-background);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-border);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-8);
  font-feature-settings: 'tnum';
}

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

/* AI Showcase Section */
.ai-showcase-section {
  background: var(--color-background);
}

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

.ai-block {
  background: var(--color-surface);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-border);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.ai-block:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

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

.ai-block h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-12);
}

.ai-block p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin-bottom: var(--space-16);
}

.ai-block-animation {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-standard);
}

.ai-block:hover .ai-block-animation {
  opacity: 1;
  animation: ai-pulse 2s infinite;
}

.tensorflow-animation {
  background: linear-gradient(90deg, #ff6b35, #f7931e);
}

.keras-animation {
  background: linear-gradient(90deg, #d00000, #ff6b6b);
}

.scikit-animation {
  background: linear-gradient(90deg, #1fb8cd, #32d74b);
}

.cloud-animation {
  background: linear-gradient(90deg, #4285f4, #34a853);
}

.data-animation {
  background: linear-gradient(90deg, #ff9500, #ffcc02);
}

.generative-animation {
  background: linear-gradient(90deg, #af52de, #5856d6);
}

@keyframes ai-pulse {
  0%, 100% {
    transform: scaleX(0.8);
    opacity: 0.6;
  }
  50% {
    transform: scaleX(1);
    opacity: 1;
  }
}

/* Experience Section */
.experience-section {
  background: var(--color-surface);
}

.timeline {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 40px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-teal-400));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-32);
  padding-left: 100px;
}

.timeline-dot {
  position: absolute;
  left: 31px;
  top: var(--space-16);
  width: 18px;
  height: 18px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 4px solid var(--color-background);
  box-shadow: var(--shadow-md);
  z-index: 2;
}

.timeline-content {
  background: var(--color-background);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-standard);
}

.timeline-content:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

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

.timeline-header h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-8);
}

.company-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.company {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  font-size: var(--font-size-base);
}

.duration {
  background: var(--color-secondary);
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.achievement-list {
  list-style: none;
}

.achievement-list li {
  margin-bottom: var(--space-12);
  padding-left: var(--space-20);
  position: relative;
  line-height: var(--line-height-normal);
}

.achievement-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
  font-size: var(--font-size-lg);
}

/* Skills Section */
.skills-section {
  background: var(--color-background);
}

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

.skill-category {
  background: var(--color-surface);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-standard);
}

.skill-category:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.skill-category h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-16);
  color: var(--color-text);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--space-8);
}

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

.skill-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-8) var(--space-12);
  background: var(--color-secondary);
  border-radius: var(--radius-base);
  font-weight: var(--font-weight-medium);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-standard);
}

.skill-item:hover {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  transform: translateX(4px);
}

.skill-item::after {
  content: attr(data-level) '%';
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
}

.skill-item:hover::after {
  color: var(--color-btn-primary-text);
}

/* Projects Section */
.projects-section {
  background: var(--color-surface);
}

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

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

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

.filter-btn {
  background: var(--color-secondary);
  color: var(--color-text);
  border: none;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
}

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

.projects-loading {
  text-align: center;
  padding: var(--space-32);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-secondary);
  border-top: 3px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--space-16) auto;
}

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

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-24);
}

.project-card {
  background: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-standard);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease forwards;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.project-card:nth-child(even) {
  animation-delay: 0.1s;
}

.project-card:nth-child(3n) {
  animation-delay: 0.2s;
}

.project-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--color-bg-1);
}

.project-content {
  padding: var(--space-20);
}

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

.project-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin: 0;
  color: var(--color-text);
}

.project-language {
  padding: var(--space-2) var(--space-8);
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.project-description {
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin-bottom: var(--space-16);
  font-size: var(--font-size-sm);
}

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

.project-stat {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.project-actions {
  display: flex;
  gap: var(--space-8);
}

.project-btn {
  background: var(--color-secondary);
  color: var(--color-text);
  border: none;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-base);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
}

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

.projects-error {
  text-align: center;
  padding: var(--space-32);
  color: var(--color-text-secondary);
}

/* Certifications Section */
.certifications-section {
  background: var(--color-background);
}

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-32);
  max-width: 1200px;
  margin: 0 auto;
}

.cert-category {
  background: var(--color-surface);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.cert-category h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-20);
  color: var(--color-text);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--space-8);
}

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

.cert-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-16);
  padding: var(--space-16);
  background: var(--color-background);
  border-radius: var(--radius-base);
  transition: all var(--duration-normal) var(--ease-standard);
}

.cert-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.cert-item.featured {
  border: 2px solid var(--color-primary);
  background: var(--color-bg-1);
}

.cert-icon {
  font-size: 24px;
  min-width: 32px;
}

.cert-details h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
}

.cert-issuer {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

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

.cert-note {
  color: var(--color-success);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  margin-top: var(--space-2);
}

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

.language-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-12) var(--space-16);
  background: var(--color-background);
  border-radius: var(--radius-base);
}

.language-name {
  font-weight: var(--font-weight-medium);
}

.language-level {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  padding: var(--space-2) var(--space-8);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

/* Contact Section */
.contact-section {
  background: var(--color-surface);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-32);
  max-width: 1200px;
  margin: 0 auto;
}

.contact-text h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-16);
}

.contact-text p {
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-24);
}

.contact-details {
  margin-bottom: var(--space-32);
}

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

.contact-icon {
  font-size: var(--font-size-xl);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-background);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-xs);
}

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

.contact-item a {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
}

.contact-item a:hover {
  text-decoration: underline;
}

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

.social-btn {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-16);
  background: var(--color-background);
  border-radius: var(--radius-base);
  text-decoration: none;
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  box-shadow: var(--shadow-xs);
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-standard);
  font-size: var(--font-size-sm);
}

.social-btn svg {
  width: 20px;
  height: 20px;
  transition: all var(--duration-normal) var(--ease-standard);
}

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

.social-btn.linkedin:hover {
  background: #0077b5;
  color: white;
}

.social-btn.github:hover {
  background: var(--color-black);
  color: white;
}

.contact-form {
  background: var(--color-background);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--space-20);
}

/* Footer */
.footer {
  background: var(--color-text);
  color: var(--color-background);
  text-align: center;
  padding: var(--space-24) 0;
}

.footer p {
  margin: 0;
  font-size: var(--font-size-sm);
  opacity: 0.8;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-24);
}

.modal.hidden {
  display: none;
}

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

.modal-content {
  position: relative;
  background: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2xl);
  max-width: 800px;
  max-height: 80vh;
  width: 100%;
  overflow: hidden;
}

.modal-header {
  padding: var(--space-20) var(--space-24);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  cursor: pointer;
  color: var(--color-text-secondary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-base);
  transition: all var(--duration-fast) var(--ease-standard);
}

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

.modal-body {
  padding: var(--space-24);
  max-height: 60vh;
  overflow-y: auto;
}

.readme-content {
  line-height: var(--line-height-normal);
}

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

.readme-content h3 {
  margin: var(--space-20) 0 var(--space-12) 0;
  color: var(--color-text);
}

.readme-content ul {
  margin-bottom: var(--space-16);
  padding-left: var(--space-20);
}

.readme-content li {
  margin-bottom: var(--space-8);
  color: var(--color-text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .nav-container {
    padding: 0 var(--space-16);
  }
  
  .container {
    padding: 0 var(--space-16);
  }
  
  .ai-blocks-container {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-16);
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    padding-left: 60px;
  }
  
  .timeline-dot {
    left: 11px;
  }
  
  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-background);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-24);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--duration-normal) var(--ease-standard);
    border-top: 1px solid var(--color-border);
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-16);
  }
  
  .stats-container {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-16);
  }
  
  .ai-blocks-container {
    grid-template-columns: 1fr;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-24);
  }
  
  .social-links {
    justify-content: center;
  }
  
  .company-info {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-8);
  }
  
  .certifications-grid {
    grid-template-columns: 1fr;
    gap: var(--space-20);
  }
  
  /* Enhanced mobile navigation glow effects */
  .nav-menu li a:hover {
    transform: scale(1.05);
  }
  
  .nav-menu li:nth-child(1) a:hover {
    color: #ff6b6b;
    text-shadow: 0 0 15px rgba(255, 107, 107, 0.7);
    box-shadow: 0 0 25px rgba(255, 107, 107, 0.4);
  }
  
  .nav-menu li:nth-child(2) a:hover {
    color: #4ecdc4;
    text-shadow: 0 0 15px rgba(78, 205, 196, 0.7);
    box-shadow: 0 0 25px rgba(78, 205, 196, 0.4);
  }
  
  .nav-menu li:nth-child(3) a:hover {
    color: #45b7d1;
    text-shadow: 0 0 15px rgba(69, 183, 209, 0.7);
    box-shadow: 0 0 25px rgba(69, 183, 209, 0.4);
  }
  
  .nav-menu li:nth-child(4) a:hover {
    color: #96ceb4;
    text-shadow: 0 0 15px rgba(150, 206, 180, 0.7);
    box-shadow: 0 0 25px rgba(150, 206, 180, 0.4);
  }
  
  .nav-menu li:nth-child(5) a:hover {
    color: #feca57;
    text-shadow: 0 0 15px rgba(254, 202, 87, 0.7);
    box-shadow: 0 0 25px rgba(254, 202, 87, 0.4);
  }
  
  .nav-menu li:nth-child(6) a:hover {
    color: #ff9ff3;
    text-shadow: 0 0 15px rgba(255, 159, 243, 0.7);
    box-shadow: 0 0 25px rgba(255, 159, 243, 0.4);
  }
  
  .nav-menu li:nth-child(7) a:hover {
    color: #54a0ff;
    text-shadow: 0 0 15px rgba(84, 160, 255, 0.7);
    box-shadow: 0 0 25px rgba(84, 160, 255, 0.4);
  }
  
  .nav-menu li:nth-child(8) a:hover {
    color: #5f27cd;
    text-shadow: 0 0 15px rgba(95, 39, 205, 0.7);
    box-shadow: 0 0 25px rgba(95, 39, 205, 0.4);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-12);
  }
  
  .nav-container {
    padding: 0 var(--space-12);
  }
  
  .hero-content {
    padding: 0 var(--space-12);
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
  }
  
  .stats-container {
    grid-template-columns: 1fr;
  }
  
  .social-btn span {
    display: none;
  }
  
  .social-btn {
    padding: var(--space-12);
  }
  
  .modal-content {
    margin: var(--space-12);
    max-height: 90vh;
  }
  
  section {
    padding: var(--space-24) 0;
  }
  
  .hero-title {
    font-size: clamp(2rem, 6vw, 3rem);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
  }
  
  .hero-description {
    font-size: var(--font-size-base);
  }
  
  .section-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }
  
  .project-actions {
    flex-direction: column;
    gap: var(--space-8);
  }
  
  .project-btn {
    width: 100%;
    justify-content: center;
  }
  
  .contact-form {
    padding: var(--space-16);
  }
  
  .cert-item {
    flex-direction: column;
    text-align: center;
    gap: var(--space-8);
  }
  
  .cert-icon {
    align-self: center;
  }
}

/* Extra small devices */
@media (max-width: 360px) {
  .hero-title {
    font-size: 1.8rem;
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
  }
  
  .hero-description {
    font-size: var(--font-size-sm);
  }
  
  .nav-menu {
    padding: var(--space-16);
  }
  
  .nav-menu a {
    padding: var(--space-12) var(--space-16);
    font-size: var(--font-size-base);
  }
  
  .project-content {
    padding: var(--space-16);
  }
  
  .ai-block {
    padding: var(--space-16);
  }
  
  .skill-category {
    padding: var(--space-16);
  }
}

/* Landscape orientation on mobile */
@media (max-height: 500px) and (orientation: landscape) {
  .hero-section {
    min-height: 100vh;
    padding-top: 60px;
  }
  
  .hero-content {
    padding: var(--space-16);
  }
  
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-12);
  }
  
  .scroll-indicator {
    bottom: var(--space-16);
  }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .nav-menu a {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .nav-menu a:hover {
    transform: none;
  }
  
  .ai-block:hover {
    transform: none;
  }
  
  .skill-item:hover {
    transform: none;
  }
  
  .project-card:hover {
    transform: none;
  }
  
  .social-btn:hover {
    transform: none;
  }
  
  /* Add touch feedback */
  .nav-menu a:active,
  .ai-block:active,
  .skill-item:active,
  .project-card:active,
  .social-btn:active {
    transform: scale(0.98);
  }
}

/* Animation utilities */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* Focus styles */
.btn:focus,
.project-btn:focus,
.social-btn:focus {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Loading states */
.projects-loading,
.readme-content:has(.loading-spinner) {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-16);
  padding: var(--space-32);
}

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

/* GitHub Font for README content */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* README Modal Styles */
.modal-body {
  padding: var(--space-24);
  max-height: 60vh;
  overflow-y: auto;
}

.readme-content {
  line-height: var(--line-height-normal);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
  font-size: var(--font-size-base);
  color: var(--color-text);
}

.readme-content h2 {
  margin-bottom: var(--space-16);
  color: var(--color-text);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-8);
}

.readme-content h3 {
  margin: var(--space-20) 0 var(--space-12) 0;
  color: var(--color-text);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.readme-content h4 {
  margin: var(--space-16) 0 var(--space-8) 0;
  color: var(--color-text);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
}

.readme-content ul {
  margin-bottom: var(--space-16);
  padding-left: var(--space-20);
}

.readme-content li {
  margin-bottom: var(--space-8);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.readme-content p {
  margin-bottom: var(--space-12);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.readme-content code {
  background: var(--color-secondary);
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-sm);
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.9em;
  color: var(--color-text);
}

.readme-content pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: var(--space-16);
  overflow-x: auto;
  margin: var(--space-16) 0;
}

.readme-content pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  color: var(--color-text);
}

.readme-content a {
  color: var(--color-primary);
  text-decoration: none;
}

.readme-content a:hover {
  text-decoration: underline;
}

/* Emoji support */
.readme-content {
  font-feature-settings: "liga" 1, "kern" 1;
  text-rendering: optimizeLegibility;
}

/* Dark mode adjustments for README */
@media (prefers-color-scheme: dark) {
  .readme-content {
    color: var(--color-text);
  }
  
  .readme-content code {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
  }
  
  .readme-content pre {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-border);
  }
}