: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);
  /* New button outline hover tokens (Light Mode) for consistent contrast */
  --color-btn-outline-hover-bg: var(--color-secondary);
  --color-btn-outline-hover-text: var(--color-text);
  --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);
  /* Force high-contrast primary button text in dark mode */
  --color-btn-primary-text: var(--color-cream-50);
  /* Outline button hover tokens (Dark Mode) */
  --color-btn-outline-hover-bg: var(--color-secondary);
  --color-btn-outline-hover-text: var(--color-gray-200);
    --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);
  /* Force high-contrast primary button text in dark mode */
  --color-btn-primary-text: var(--color-cream-50);
  --color-btn-outline-hover-bg: var(--color-secondary);
  --color-btn-outline-hover-text: var(--color-gray-200);
  --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);
  position: relative;
}

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

a:not(.btn):hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

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 */
/* ===========================
   RISH PRAVEEN - PORTFOLIO
   Professional Minimalist Design System
   =========================== */

/* ===== BASE STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  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;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
  transition: background-color var(--duration-normal) var(--ease-standard),
              color var(--duration-normal) var(--ease-standard);
}

*,
*::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);
  margin-bottom: var(--space-16);
}

h1 {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
}

h2 {
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-3xl));
}

h3 {
  font-size: clamp(var(--font-size-xl), 3vw, 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;
  font-family: var(--font-family-base);
  color: var(--color-text-secondary);
}

strong {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
  font-weight: var(--font-weight-medium);
}

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;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-background);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast) var(--ease-standard);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-hover);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-background);
}

/* ===== SELECTION ===== */
::selection {
  background: var(--color-primary);
  color: var(--color-background);
}

::-moz-selection {
  background: var(--color-primary);
  color: var(--color-background);
}

/* ===== UTILITY CLASSES ===== */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-24);
  padding-left: var(--space-24);
}

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

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

.text-primary {
  color: var(--color-primary);
}

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

.mb-2 { margin-bottom: var(--space-8); }
.mb-3 { margin-bottom: var(--space-12); }
.mb-4 { margin-bottom: var(--space-16); }
.mb-5 { margin-bottom: var(--space-24); }
.mb-6 { margin-bottom: var(--space-32); }

.mt-2 { margin-top: var(--space-8); }
.mt-3 { margin-top: var(--space-12); }
.mt-4 { margin-top: var(--space-16); }
.mt-5 { margin-top: var(--space-24); }
.mt-6 { margin-top: var(--space-32); }

.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);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(var(--color-primary), 0.3);
  }
  50% {
    box-shadow: 0 0 30px rgba(var(--color-primary), 0.5);
  }
}

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

@keyframes headingSlide {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes underlineExpand {
  from {
    width: 0;
  }
  to {
    width: 60px;
  }
}

.fade-in {
  animation: fadeIn 0.8s var(--ease-standard) forwards;
}

.slide-in {
  animation: slideIn 0.6s var(--ease-standard) forwards;
}

.scale-in {
  animation: scaleIn 0.5s var(--ease-standard) forwards;
}

/* Section heading animations - simplified without view() */
section h2 {
  position: relative;
  padding-bottom: 12px;
  margin-bottom: 2rem;
  animation: headingSlide 0.8s var(--ease-standard) forwards;
}

/* Underline is driven by a CSS variable set from JS (scroll/typing progress) */
section h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 60px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-teal-400));
  border-radius: 2px;
  transform-origin: left;
  transform: scaleX(var(--underline-progress, 0));
  will-change: transform;
}

/* Scroll-based entrance animations for sections - removed unsupported view() */
section {
  opacity: 1;
  transform: translateY(0);
  /* Ensure headings aren't hidden under the sticky navbar when scrolled into view */
  scroll-margin-top: calc(var(--nav-h, 80px) + 12px);
}

/* Typing effect styles for section headings */
.typing-wrapper {
  display: inline-flex;
  align-items: baseline;
}

.typing-target {
  display: inline-block;
  white-space: nowrap;
}

.typing-caret {
  display: inline-block;
  width: 2px;
  height: 1em;
  background-color: var(--color-primary);
  margin-left: 2px;
  animation: caretBlink 1s steps(1, end) infinite;
}

@keyframes caretBlink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* Respect user preference to reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .typing-caret { display: none !important; }
}

/* Skip link accessibility styles */
.skip-link {
  position: absolute;
  top: -40px;
  left: 8px;
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  box-shadow: var(--shadow-md);
  transition: top var(--duration-fast) var(--ease-standard);
  z-index: 2000;
}
.skip-link:focus {
  top: 8px;
  outline: var(--focus-outline);
}

/* Icon hover effects */
img[src*="lucide-static"] {
  transition: transform var(--duration-fast) var(--ease-standard), opacity var(--duration-fast) var(--ease-standard);
}

a:hover img[src*="lucide-static"],
button:hover img[src*="lucide-static"] {
  transform: scale(1.1);
}

/* ===== 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: all var(--duration-normal) var(--ease-standard);
  padding: var(--space-24);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-teal-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(var(--color-teal-500-rgb), 0.3);
}

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

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

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* ===== BADGE COMPONENT ===== */
.badge {
  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);
  background-color: var(--color-secondary);
  color: var(--color-primary);
  border: 1px solid rgba(var(--color-teal-500-rgb), 0.2);
  transition: all var(--duration-fast) var(--ease-standard);
  font-family: var(--font-family-mono);
}

.badge:hover {
  background: rgba(var(--color-teal-500-rgb), 0.1);
  border-color: var(--color-primary);
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(var(--color-teal-500-rgb), 0.15);
}

/* ===== BUTTON COMPONENT ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  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);
  transition: all var(--duration-normal) var(--ease-standard);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: var(--color-btn-primary-text) !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(var(--color-teal-500-rgb), 0.3);
}

.btn-primary:active {
  background: var(--color-primary-active);
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: all var(--duration-normal) var(--ease-standard);
}

.btn-outline:hover {
  /* Make outline hover consistent and readable: filled primary with white text */
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-btn-primary-text) !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(var(--color-teal-500-rgb), 0.25);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== STATUS INDICATORS ===== */
.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));
}

/* ===== 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);
}

.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);
}

/* ===== RESPONSIVE BREAKPOINTS ===== */
@media (max-width: 1024px) {
  .container {
    padding-right: var(--space-16);
    padding-left: var(--space-16);
  }
}

@media (max-width: 768px) {
  .container {
    padding-right: var(--space-12);
    padding-left: var(--space-12);
  }

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

  .section {
    padding: var(--space-24) 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding-right: var(--space-8);
    padding-left: var(--space-8);
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

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

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

  h1 {
    font-size: var(--font-size-2xl);
  }

  h2 {
    font-size: var(--font-size-xl);
  }

  h3 {
    font-size: var(--font-size-lg);
  }
}

/* ===== 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 !important;
  }
}

/* Focus visible for keyboard navigation */
:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* Screen reader only */
.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;
}

/* ===== PRINT STYLES ===== */
@media print {
  body {
    background: white;
    color: black;
  }
  
  .no-print {
    display: none !important;
  }
  
  a[href]:after {
    content: " (" attr(href) ")";
  }
}

/* ===== END OF PROFESSIONAL CSS FRAMEWORK ===== */

/* ===== RESPONSIVE NAVIGATION & HAMBURGER MENU ===== */
.nav-bar {
  max-width: 100%;
  margin: 0 auto;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.nav-bar .nav-links {
  transition: all var(--duration-normal) var(--ease-standard);
}

.nav-bar .nav-links button {
  position: relative;
  padding: 0.375rem 0.6rem;
  border-radius: var(--radius-md);
  transition:
    color var(--duration-fast) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard);
}

.nav-bar .nav-links button:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0.6rem;
  right: 0.6rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-teal-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-standard);
}

.nav-bar .nav-links button:not(.btn):hover::after {
  transform: scaleX(1);
}

.nav-bar .nav-links button:not(.btn):hover {
  color: var(--color-primary);
  background-color: var(--color-secondary);
}

/* Active/current page state via aria-current */
.nav-bar .nav-links button[aria-current="page"] {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  background-color: var(--color-secondary);
}

.nav-bar .nav-links button[aria-current="page"]::after {
  transform: scaleX(1);
}

.hamburger {
  z-index: 1001;
}

@media (max-width: 768px) {
  .hamburger {
    display: flex !important;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 280px;
    background-color: var(--color-background);
    border-left: 1px solid var(--color-border);
    flex-direction: column !important;
    align-items: flex-start !important;
    padding: 5rem 2rem 2rem 2rem;
    gap: 1.5rem !important;
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-standard);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.2);
    z-index: 1000;
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-links button {
    width: 100%;
    text-align: left;
    padding: 0.75rem 0;
    font-size: 1.1rem !important;
  }
}

/* PC Standard Container - max width 1280px centered */
.container,
section {
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 1400px) {
  .container,
  section {
    max-width: 1400px;
  }
}

/* ===== END RESPONSIVE NAVIGATION ===== */

/* ===== ICON & IMAGE DARK MODE FIXES ===== */
/* Ensure Lucide icons adapt to dark mode properly */
@media (prefers-color-scheme: dark) {
  img[src*="lucide-static"] {
    filter: brightness(0) saturate(100%) invert(92%) sepia(6%) saturate(284%) hue-rotate(356deg) brightness(101%) contrast(92%);
  }
}

[data-color-scheme="dark"] img[src*="lucide-static"] {
  filter: brightness(0) saturate(100%) invert(92%) sepia(6%) saturate(284%) hue-rotate(356deg) brightness(101%) contrast(92%);
}

[data-color-scheme="light"] img[src*="lucide-static"] {
  filter: none;
}

/* Ensure images in links/buttons that should use primary color do so */
a img[src*="lucide-static"],
button img[src*="lucide-static"] {
  transition: filter var(--duration-fast) var(--ease-standard);
}

/* When parent has specific color styling, icons should inherit that intent */
[style*="color: var(--color-primary)"] img[src*="lucide-static"],
.text-primary img[src*="lucide-static"] {
  filter: brightness(0) saturate(100%) invert(68%) sepia(61%) saturate(427%) hue-rotate(130deg) brightness(93%) contrast(87%) !important;
}

/* Dark mode adjustments for primary colored elements */
@media (prefers-color-scheme: dark) {
  [style*="color: var(--color-primary)"] img[src*="lucide-static"],
  .text-primary img[src*="lucide-static"] {
    filter: brightness(0) saturate(100%) invert(73%) sepia(35%) saturate(635%) hue-rotate(130deg) brightness(96%) contrast(89%) !important;
  }
}

[data-color-scheme="dark"] [style*="color: var(--color-primary)"] img[src*="lucide-static"],
[data-color-scheme="dark"] .text-primary img[src*="lucide-static"] {
  filter: brightness(0) saturate(100%) invert(73%) sepia(35%) saturate(635%) hue-rotate(130deg) brightness(96%) contrast(89%) !important;
}

/* Smooth hover transitions for icon filters */
a:hover img[src*="lucide-static"],
button:hover img[src*="lucide-static"] {
  opacity: 0.85;
}

/* ===== END ICON DARK MODE FIXES ===== */

/* ===== DESKTOP-SPECIFIC OPTIMIZATIONS ===== */
/* Make better use of horizontal space on desktop */
@media (min-width: 1024px) {
  /* Hero section - keep centered and narrow for focus */
  #home {
    padding: 3rem 2rem 2rem 2rem !important;
    min-height: 70vh !important;
  }
  
  #home > div {
    max-width: 900px !important;
  }
  
  #home h1 {
    font-size: 3rem !important;
    margin-bottom: 0.5rem !important;
  }
  
  #home p:nth-of-type(1) {
    font-size: 1.25rem !important;
    margin-bottom: 0.75rem !important;
  }
  
  #home p:nth-of-type(2) {
    margin-bottom: 1.5rem !important;
  }
  
  /* All other sections - expand to use horizontal space */
  #about > div,
  #projects > div,
  #skills > div,
  #certifications > div {
    max-width: 1400px !important;
  }
  
  /* About section - 3 column grid on desktop */
  #about {
    padding: 2.5rem 2rem !important;
  }
  
  #about > div {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 2rem !important;
  }
  
  /* Projects section - side by side on desktop */
  #projects {
    padding: 2.5rem 2rem !important;
  }
  
  #projects > div:last-child {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 2rem !important;
  }
  
  /* Skills section - compact grid */
  #skills {
    padding: 2.5rem 2rem !important;
  }
  
  #skills > div {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 1.5rem !important;
  }
  
  /* Certifications - 3 column on desktop */
  #certifications {
    padding: 2.5rem 2rem !important;
  }
  
  #certifications > div:last-child {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 1.5rem !important;
  }
  
  /* Reduce section spacing on desktop */
  section {
    margin-bottom: 2rem;
  }
  
  section h2 {
    font-size: 2rem !important;
    margin-bottom: 2rem !important;
    padding-bottom: 12px !important;
  }
}

/* Extra large screens - even more compact and wider */
@media (min-width: 1440px) {
  #home {
    padding: 2.5rem 2rem 2rem 2rem !important;
    min-height: 60vh !important;
  }
  
  /* Expand sections even more on extra large screens */
  #about > div,
  #projects > div,
  #skills > div,
  #certifications > div {
    max-width: 1600px !important;
  }
  
  #about,
  #projects,
  #skills,
  #certifications {
    padding: 2rem !important;
  }
}

/* Mobile optimizations - keep current good mobile layout */
@media (max-width: 768px) {
  #home {
    padding: 4rem 1.5rem 3rem 1.5rem !important;
    min-height: 85vh !important;
  }
  
  #about > div,
  #projects > div:last-child,
  #skills > div,
  #certifications > div:last-child {
    grid-template-columns: 1fr !important;
  }
}

/* ===== END DESKTOP OPTIMIZATIONS ===== */

/* ===== ENHANCED TOOLTIP STYLES ===== */
/* Custom tooltip styling for better UX with 3 second delay */
[title] {
  position: relative;
  cursor: help;
}

/* Enhance native tooltips with custom styling via CSS */
.badge-link,
.cert-card,
.project-link,
.btn[title],
a[title] {
  position: relative;
}

/* Custom tooltip box for badges and links with 3s delay */
.badge-link::after,
.cert-card::before,
.project-link::after,
.btn[title]::after {
  content: attr(title);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-5px);
  opacity: 0;
  visibility: hidden;
  background: var(--color-surface);
  color: var(--color-text);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--color-border);
  z-index: 1000;
  transition: all var(--duration-fast) var(--ease-standard);
  transition-delay: 3s;
  max-width: 300px;
  white-space: normal;
  text-align: center;
  line-height: 1.4;
}

/* Arrow for tooltip */
.badge-link::before,
.cert-card::after,
.project-link::before,
.btn[title]::before {
  content: '';
  position: absolute;
  bottom: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  visibility: hidden;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid var(--color-surface);
  pointer-events: none;
  z-index: 1001;
  transition: all var(--duration-fast) var(--ease-standard);
  transition-delay: 3s;
}

/* Show tooltip on hover and focus with 3s delay */
.badge-link:hover::after,
.badge-link:focus::after,
.cert-card:hover::before,
.cert-card:focus::before,
.project-link:hover::after,
.project-link:focus::after,
.btn[title]:hover::after,
.btn[title]:focus::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.badge-link:hover::before,
.badge-link:focus::before,
.cert-card:hover::after,
.cert-card:focus::after,
.project-link:hover::before,
.project-link:focus::before,
.btn[title]:hover::before,
.btn[title]:focus::before {
  opacity: 1;
  visibility: visible;
}

/* Adjust cert-card tooltip position */
.cert-card::before {
  bottom: auto;
  top: calc(100% + 8px);
  transform: translateX(-50%) translateY(5px);
}

.cert-card::after {
  bottom: auto;
  top: calc(100% + 2px);
  border-top: none;
  border-bottom: 6px solid var(--color-surface);
}

.cert-card:hover::before {
  transform: translateX(-50%) translateY(0);
}

/* Badge link specific styling */
.badge-link {
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

.badge-link:hover {
  transform: translateY(-2px);
}

/* ===== END ENHANCED TOOLTIPS ===== */

/* ===== LIGHT MODE FILM GRAIN TEXTURE ===== */
/* Mild, subtle grain on light-mode section backgrounds that use surface */
[data-color-scheme="light"] #about,
[data-color-scheme="light"] #skills,
[data-color-scheme="light"] #contact {
  /* Increase separation from page background in light mode */
  background-color: var(--color-surface);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
}

[data-color-scheme="light"] #about,
[data-color-scheme="light"] #skills,
[data-color-scheme="light"] #contact {
  position: relative;
  overflow: hidden; /* ensure pseudo-element stays clipped */
}

[data-color-scheme="light"] #about::before,
[data-color-scheme="light"] #skills::before,
[data-color-scheme="light"] #contact::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  /* Layered noise: subtle SVG fractal noise + fine radial dots */
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100%' height='100%'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.035'/></svg>"),
    radial-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    radial-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px);
  background-size: cover, 4px 4px, 7px 7px;
  background-position: center, 0 0, 1px 1px;
  mix-blend-mode: multiply;
}

/* Improve section header legibility over grain in light mode */
[data-color-scheme="light"] #about h2,
[data-color-scheme="light"] #skills h2,
[data-color-scheme="light"] #contact h2 {
  /* Subtle depth around text for readability without looking heavy */
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.05),
    0 2px 8px rgba(0, 0, 0, 0.06);
}

/* ===== TYPING EFFECT STYLES ===== */
.typing-wrapper {
  display: inline-flex;
  align-items: center;
}

.typing-target {
  display: inline-block;
}

.typing-caret {
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 4px;
  background: currentColor;
  animation: caretBlink 1s steps(1, end) infinite;
}

@keyframes caretBlink {
  50% { opacity: 0; }
}