:root {
  /* Material Design 2021 Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);

  /* Light Mode Colors */
  --color-primary: #2966eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-active: #1e40af;
  --color-accent: #fb923c;
  --color-accent-hover: #f97316;
  --color-accent-active: #ea580c;
  --color-error: #ef4444;
  --color-background: #fff;
  --color-surface: #f8fafc;
  --color-surface-variant: #f1f5f9;
  --color-outline: #e5e7eb;
  --color-text-primary: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-on-primary: #fff;
  --color-text-on-accent: #fff;

  /* RGB versions for opacity control */
  --color-primary-rgb: 37, 99, 235;
  --color-accent-rgb: 251, 146, 60;
  --color-error-rgb: 239, 68, 68;
  --color-background-rgb: 255, 255, 255;
  --color-surface-rgb: 248, 250, 252;
  --color-outline-rgb: 229, 231, 235;
  --color-text-primary-rgb: 30, 41, 59;
  --color-text-secondary-rgb: 100, 116, 139;

  /* Background color tokens (Light Mode) - Very subtle neutral backgrounds */
  --color-bg-1: rgba(var(--color-primary-rgb), 0.04); /* Primary - very subtle */
  --color-bg-2: rgba(var(--color-accent-rgb), 0.04); /* Accent - very subtle */
  --color-bg-3: #f8fafc; /* Neutral background */
  --color-bg-4: rgba(var(--color-error-rgb), 0.04); /* Error - very subtle */
  --color-bg-5: rgba(var(--color-primary-rgb), 0.08); /* Primary emphasis */
  --color-bg-6: rgba(var(--color-accent-rgb), 0.08); /* Accent emphasis */
  --color-bg-7: #f1f5f9; /* Neutral emphasis */
  --color-bg-8: rgba(var(--color-error-rgb), 0.08); /* Error emphasis */

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-background);
  --color-surface: var(--color-surface);
  --color-text: var(--color-text-primary);
  --color-text-secondary: var(--color-text-secondary);
  --color-primary: var(--color-primary);
  --color-primary-hover: var(--color-primary-hover);
  --color-primary-active: var(--color-primary-active);
  --color-border: rgba(var(--color-outline-rgb), 0.18);
  --color-btn-primary-text: var(--color-text-on-primary);
  --color-btn-secondary-text: var(--color-accent);
  --color-card-border: rgba(var(--color-outline-rgb), 0.18);
  --color-card-border-inner: rgba(var(--color-outline-rgb), 0.10);
  --color-error: var(--color-error);
  --color-success: #22c55e;
  --color-warning: var(--color-accent);
  --color-info: var(--color-accent);
  --color-focus-ring: rgba(var(--color-primary-rgb), 0.18);
  --color-select-caret: rgba(var(--color-text-primary-rgb), 0.7);

  /* 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='%23475569' 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='%23e2e8f0' 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: 34, 197, 94;
  --color-error-rgb: 239, 68, 68;
  --color-warning-rgb: 249, 115, 22;
  --color-info-rgb: 139, 92, 246;

  /* Typography */
  --font-family-base: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Fira Code", 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: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  /* Shadows - Material Design Elevation - Enhanced */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
  --shadow-inset-sm: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* 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 {
    /* Dark Mode Colors - Enhanced for Frontend Architect Profile */
    --color-primary: rgba(96, 165, 250, 1); /* #60a5fa - Blue 400 */
    --color-primary-hover: rgba(59, 130, 246, 1); /* #3b82f6 - Blue 500 */
    --color-primary-active: rgba(37, 99, 235, 1); /* #2563eb - Blue 600 */
    --color-secondary: rgba(167, 139, 250, 1); /* #a78bfa - Purple 400 */
    --color-secondary-hover: rgba(139, 92, 246, 1); /* #8b5cf6 - Purple 500 */
    --color-secondary-active: rgba(124, 58, 237, 1); /* #7c3aed - Purple 600 */
    --color-tertiary: rgba(129, 140, 248, 1); /* #818cf8 - Indigo 400 */
    --color-error: rgba(248, 113, 113, 1); /* #f87171 - Red 400 */
    --color-background: rgba(15, 23, 42, 1); /* #0f172a - Slate 900 */
    --color-surface: rgba(30, 41, 59, 1); /* #1e293b - Slate 800 */
    --color-surface-variant: rgba(51, 65, 85, 1); /* #334155 - Slate 700 */
    --color-outline: rgba(148, 163, 184, 1); /* #94a3b8 - Slate 400 */
    --color-text-primary: rgba(241, 245, 249, 1); /* #f1f5f9 - Slate 100 */
    --color-text-secondary: rgba(203, 213, 225, 1); /* #cbd5e1 - Slate 300 */
    --color-text-on-primary: rgba(15, 23, 42, 1); /* #0f172a - Dark text on bright primary */
    --color-text-on-secondary: rgba(241, 245, 249, 1); /* #f1f5f9 - Light text on dark secondary */

  /* RGB versions for dark mode */
  --color-primary-rgb: 96, 165, 250;
  --color-secondary-rgb: 167, 139, 250;
  --color-tertiary-rgb: 129, 140, 248;
  --color-error-rgb: 248, 113, 113;
  --color-background-rgb: 15, 23, 42;
  --color-surface-rgb: 30, 41, 59;
  --color-outline-rgb: 148, 163, 184;
  --color-text-primary-rgb: 241, 245, 249;
  --color-text-secondary-rgb: 203, 213, 225;

  /* Background color tokens (Dark Mode) */
  --color-bg-1: rgba(var(--color-primary-rgb), 0.10); /* Primary variant */
  --color-bg-2: rgba(var(--color-secondary-rgb), 0.10); /* Secondary variant */
  --color-bg-3: rgba(var(--color-tertiary-rgb), 0.10); /* Tertiary variant */
  --color-bg-4: rgba(var(--color-error-rgb), 0.10); /* Error variant */
  --color-bg-5: rgba(var(--color-primary-rgb), 0.15); /* Primary emphasis */
  --color-bg-6: rgba(var(--color-secondary-rgb), 0.15); /* Secondary emphasis */
  --color-bg-7: rgba(var(--color-tertiary-rgb), 0.15); /* Tertiary emphasis */
  --color-bg-8: rgba(var(--color-error-rgb), 0.15); /* Error emphasis */

    /* 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='%23475569' 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='%23e2e8f0' 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: 34, 197, 94;
    --color-error-rgb: 248, 113, 113;
    --color-warning-rgb: 251, 146, 60;
    --color-info-rgb: 167, 139, 250;
  }
}

/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  /* Dark Mode Colors - Enhanced for Frontend Architect Profile */
  --color-primary: rgba(96, 165, 250, 1); /* #60a5fa - Blue 400 */
  --color-primary-hover: rgba(59, 130, 246, 1); /* #3b82f6 - Blue 500 */
  --color-primary-active: rgba(37, 99, 235, 1); /* #2563eb - Blue 600 */
  --color-secondary: rgba(167, 139, 250, 1); /* #a78bfa - Purple 400 */
  --color-secondary-hover: rgba(139, 92, 246, 1); /* #8b5cf6 - Purple 500 */
  --color-secondary-active: rgba(124, 58, 237, 1); /* #7c3aed - Purple 600 */
  --color-tertiary: rgba(129, 140, 248, 1); /* #818cf8 - Indigo 400 */
  --color-error: rgba(248, 113, 113, 1); /* #f87171 - Red 400 */
  --color-background: rgba(15, 23, 42, 1); /* #0f172a - Slate 900 */
  --color-surface: rgba(30, 41, 59, 1); /* #1e293b - Slate 800 */
  --color-surface-variant: rgba(51, 65, 85, 1); /* #334155 - Slate 700 */
  --color-outline: rgba(148, 163, 184, 1); /* #94a3b8 - Slate 400 */
  --color-text-primary: rgba(241, 245, 249, 1); /* #f1f5f9 - Slate 100 */
  --color-text-secondary: rgba(203, 213, 225, 1); /* #cbd5e1 - Slate 300 */
  --color-text-on-primary: rgba(15, 23, 42, 1); /* #0f172a - Dark text on bright primary */
  --color-text-on-secondary: rgba(15, 23, 42, 1); /* #0f172a - Dark text on bright secondary */

  /* RGB versions for dark mode */
  --color-primary-rgb: 96, 165, 250;
  --color-secondary-rgb: 167, 139, 250;
  --color-tertiary-rgb: 129, 140, 248;
  --color-error-rgb: 248, 113, 113;
  --color-background-rgb: 15, 23, 42;
  --color-surface-rgb: 30, 41, 59;
  --color-outline-rgb: 148, 163, 184;
  --color-text-primary-rgb: 241, 245, 249;
  --color-text-secondary-rgb: 203, 213, 225;

  /* Semantic Color Tokens (Dark Mode) */
  --color-background: var(--color-background);
  --color-surface: var(--color-surface);
  --color-text: var(--color-text-primary);
  --color-text-secondary: var(--color-text-secondary);
  --color-primary: var(--color-primary);
  --color-primary-hover: var(--color-primary-hover);
  --color-primary-active: var(--color-primary-active);
  --color-secondary: var(--color-secondary);
  --color-secondary-hover: var(--color-secondary-hover);
  --color-secondary-active: var(--color-secondary-active);
  --color-border: rgba(var(--color-outline-rgb), 0.25);
  --color-error: var(--color-error);
  --color-success: rgba(74, 222, 128, 1); /* #4ade80 - Green 400 */
  --color-warning: rgba(251, 146, 60, 1); /* #fb923c - Orange 400 */
  --color-info: var(--color-secondary);
  --color-focus-ring: rgba(var(--color-primary-rgb), 0.4);
  --color-btn-primary-text: var(--color-text-on-primary);
  --color-btn-secondary-text: var(--color-primary);
  --color-card-border: rgba(var(--color-outline-rgb), 0.20);
  --color-card-border-inner: rgba(var(--color-outline-rgb), 0.15);
  --shadow-inset-sm: inset 0 2px 4px rgba(0, 0, 0, 0.2);
  --color-border-secondary: rgba(var(--color-outline-rgb), 0.2);
  --color-select-caret: rgba(var(--color-text-primary-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='%23475569' 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='%23e2e8f0' 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: 74, 222, 128;
  --color-error-rgb: 248, 113, 113;
  --color-warning-rgb: 251, 146, 60;
  --color-info-rgb: 167, 139, 250;
}

[data-color-scheme="light"] {
  /* RGB versions for opacity control (light mode) */
  --color-primary-rgb: 59, 130, 246;
  --color-secondary-rgb: 139, 92, 246;
  --color-tertiary-rgb: 99, 102, 241;
  --color-error-rgb: 239, 68, 68;
  --color-background-rgb: 255, 255, 255;
  --color-surface-rgb: 255, 255, 255;
  --color-outline-rgb: 148, 163, 184;
  --color-text-primary-rgb: 15, 23, 42;
  --color-text-secondary-rgb: 71, 85, 105;
  --color-text-primary: #1e293b;

  /* Semantic Color Tokens (Light Mode) */
  --color-background: rgba(255, 255, 255, 1);
  --color-surface: rgba(255, 255, 255, 1);
  --color-text: rgba(15, 23, 42, 1);
  --color-text-secondary: rgba(71, 85, 105, 1);
  --color-primary: rgba(59, 130, 246, 1);
  --color-primary-hover: rgba(37, 99, 235, 1);
  --color-primary-active: rgba(29, 78, 216, 1);
  --color-secondary: rgba(139, 92, 246, 1);
  --color-secondary-hover: rgba(124, 58, 237, 1);
  --color-secondary-active: rgba(109, 40, 217, 1);
  --color-border: rgba(148, 163, 184, 0.2);
  --color-btn-primary-text: rgba(255, 255, 255, 1);
  --color-btn-secondary-text: rgba(59, 130, 246, 1);
  --color-card-border: rgba(148, 163, 184, 0.15);
  --color-card-border-inner: rgba(148, 163, 184, 0.10);
  --color-error: rgba(239, 68, 68, 1);
  --color-success: rgba(34, 197, 94, 1);
  --color-warning: rgba(249, 115, 22, 1);
  --color-info: rgba(139, 92, 246, 1);
  --color-focus-ring: rgba(59, 130, 246, 0.3);
  --color-text-on-primary: rgba(255, 255, 255, 1);
  --color-text-on-secondary: rgba(15, 23, 42, 1);
  --color-select-caret: rgba(15, 23, 42, 0.8);

  /* RGB versions for light mode */
  --color-success-rgb: 34, 197, 94;
  --color-error-rgb: 239, 68, 68;
  --color-warning-rgb: 249, 115, 22;
  --color-info-rgb: 139, 92, 246;
}

/* 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: 12px 16px;
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: all var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  min-height: 120px;
  resize: vertical;
}

select.form-control {
  padding: 12px 16px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
  padding-right: 48px;
}

/* 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: none;
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.form-control:hover:not(:focus) {
  border-color: rgba(var(--color-primary-rgb), 0.3);
}

.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: all var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(var(--color-primary-rgb), 0.3);
  transform: translateY(-2px);
}

.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 */
/* Professional Frontend Developer Portfolio - Enhanced Edition */
:root {
  /* Using Design System Colors */
  --brand: var(--color-primary);
  --brand-light: var(--color-primary-hover);
  --brand-dark: var(--color-primary-active);
  --accent: var(--color-primary);
  --bg-primary: var(--color-background);
  --bg-secondary: var(--color-surface);
  --bg-tertiary: var(--color-surface);
  --text-primary: var(--color-text);
  --text-secondary: var(--color-text-secondary);
  --text-muted: var(--color-text-secondary);
  --border: var(--color-border);
  --shadow-sm: var(--shadow-xs);
  --shadow: var(--shadow-sm);
  --shadow-lg: var(--shadow-md);
  --shadow-xl: var(--shadow-lg);
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-active) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  --gradient-mesh: radial-gradient(at 0% 0%, rgba(var(--color-primary-rgb), 0.03) 0px, transparent 50%),
                   radial-gradient(at 100% 0%, rgba(var(--color-primary-rgb), 0.05) 0px, transparent 50%),
                   radial-gradient(at 100% 100%, rgba(var(--color-primary-rgb), 0.03) 0px, transparent 50%),
                   radial-gradient(at 0% 100%, rgba(var(--color-primary-rgb), 0.05) 0px, transparent 50%);
  --radius-sm: var(--radius-sm);
  --radius: var(--radius-base);
  --radius-lg: var(--radius-lg);
  --radius-xl: var(--radius-lg);
  --transition-fast: var(--duration-fast) var(--ease-standard);
  --transition: var(--duration-normal) var(--ease-standard);
  --transition-slow: 0.5s var(--ease-standard);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
}

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

.container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-32);
}

/* Theme Toggle - Enhanced */
.theme-toggle {
  position: fixed;
  top: var(--space-24);
  right: var(--space-24);
  z-index: 1000;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  border: 2px solid rgba(var(--color-primary-rgb), 0.2);
  background: var(--color-surface);
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--duration-normal) var(--ease-standard);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.theme-toggle:hover {
  transform: scale(1.1) rotate(10deg);
  box-shadow: var(--shadow-xl);
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  border-color: var(--color-primary);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
  transition: var(--duration-normal) var(--ease-standard);
  position: absolute;
}

.theme-toggle .sun-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.theme-toggle .moon-icon {
  opacity: 0;
  transform: rotate(180deg) scale(0.5);
}

[data-color-scheme="dark"] .theme-toggle .sun-icon {
  opacity: 0;
  transform: rotate(-180deg) scale(0.5);
}

[data-color-scheme="dark"] .theme-toggle .moon-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

@media (prefers-color-scheme: dark) {
  .theme-toggle .sun-icon {
    opacity: 0;
    transform: rotate(-180deg) scale(0.5);
  }
  
  .theme-toggle .moon-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }
}

/* Ripple Effect */
.ripple {
  position: absolute;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.6);
  width: 100%;
  height: 100%;
  animation: ripple-animation 0.6s ease-out;
  pointer-events: none;
}

@keyframes ripple-animation {
  from {
    transform: scale(0);
    opacity: 1;
  }
  to {
    transform: scale(2);
    opacity: 0;
  }
}

/* Navigation - Enhanced */
.navbar {
  position: sticky;
  top: 0;
  background: rgba(var(--color-background-rgb), 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  z-index: 100;
  padding: 16px 0;
  transition: all var(--duration-normal) var(--ease-standard);
  border-bottom: 1px solid var(--color-card-border);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand .brand-logo {
  height: 40px;
  width: auto;
  transition: var(--duration-normal) var(--ease-standard);
  cursor: pointer;
}

.nav-brand .brand-logo:hover {
  transform: scale(1.05);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: var(--duration-normal) var(--ease-standard);
}

.nav-toggle:hover {
  background: rgba(var(--color-primary-rgb), 0.1);
}

.nav-toggle span {
  width: 28px;
  height: 2.5px;
  background: var(--color-text);
  border-radius: var(--radius-sm);
  transition: var(--duration-normal) var(--ease-standard);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

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

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  position: relative;
  transition: var(--duration-normal) var(--ease-standard);
  padding: var(--space-8) 0;
}

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

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

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

/* Hero Section - Enhanced */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--gradient-primary);
  color: var(--color-btn-primary-text);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  pointer-events: none;
  animation: mesh-animation 20s ease-in-out infinite;
}

@keyframes mesh-animation {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-32);
  align-items: center;
  position: relative;
  z-index: 1;
  padding: var(--space-32) 0;
}

.hero-greeting {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-12);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-20);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.4s forwards;
  letter-spacing: var(--letter-spacing-tight);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  animation: gradient-shift 3s ease infinite;
}

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

.hero-subtitle {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-24);
  display: flex;
  align-items: center;
  gap: var(--space-8);
  min-height: 2.5rem;
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

.cursor {
  animation: blink 1s infinite;
  font-weight: var(--font-weight-normal);
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-description {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  margin-bottom: var(--space-32);
  opacity: 0.95;
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.8s forwards;
}

.hero-buttons {
  display: flex;
  gap: var(--space-20);
  margin-bottom: var(--space-32);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 1s forwards;
}

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

.btn {
  padding: var(--space-16) var(--space-24);
  border-radius: var(--radius-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  transition: var(--duration-normal) var(--ease-standard);
  cursor: pointer;
  border: none;
  font-size: var(--font-size-base);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.3);
  transition: width 0.6s, height 0.6s;
  transform: translate(-50%, -50%);
  z-index: 0;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn > * {
  position: relative;
  z-index: 1;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--color-btn-primary-text);
  border: 2px solid var(--color-btn-primary-text);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  transform: translateY(-3px);
}

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

.btn.success {
  background: var(--color-success);
  color: var(--color-white);
}

.hero-social {
  display: flex;
  gap: var(--space-16);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 1.2s forwards;
}

.hero-social a {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(var(--color-primary-rgb), 0.15);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-btn-primary-text);
  transition: var(--duration-normal) var(--ease-standard);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(var(--color-primary-rgb), 0.3);
}

.hero-social a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-primary);
  transform: scale(0);
  transition: var(--duration-normal) var(--ease-standard);
  border-radius: var(--radius-full);
}

.hero-social a:hover {
  transform: translateY(-5px) scale(1.1);
  border-color: var(--color-primary);
}

.hero-social a:hover::before {
  transform: scale(1);
}

.hero-social a svg {
  position: relative;
  z-index: 1;
  transition: var(--duration-normal) var(--ease-standard);
}

.hero-social a:hover svg {
  color: var(--color-white);
}

/* Floating Cards Animation */
.image-wrapper {
  position: relative;
  width: 100%;
  height: 450px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  animation: fadeIn 1s ease-out 1s forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.floating-card {
  position: absolute;
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-4xl);
  animation: float 4s ease-in-out infinite;
  box-shadow: var(--shadow-lg);
  transition: var(--duration-normal) var(--ease-standard);
}

.floating-card:hover {
  transform: scale(1.15) !important;
  background: rgba(255, 255, 255, 0.25);
}

.card-1 {
  top: 10%;
  left: 5%;
  animation-delay: 0s;
}

.card-2 {
  top: 40%;
  right: 5%;
  animation-delay: 1.3s;
}

.card-3 {
  bottom: 15%;
  left: 25%;
  animation-delay: 2.6s;
}

.hero-profile-image {
  width: 204px;
  height: 235px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 3px solid rgba(255, 255, 255, 0.2);
  transition: var(--duration-normal) var(--ease-standard);
  z-index: 1;
}

.hero-profile-image:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-2xl);
  border-color: var(--color-primary);
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-25px) rotate(5deg);
  }
  75% {
    transform: translateY(-15px) rotate(-5deg);
  }
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-32);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-12);
  color: var(--color-btn-primary-text);
  opacity: 0;
  animation: fadeIn 1s ease-out 1.5s forwards;
}

.scroll-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid var(--color-btn-primary-text);
  border-bottom: 2px solid var(--color-btn-primary-text);
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: rotate(45deg) translateY(0);
  }
  40% {
    transform: rotate(45deg) translateY(15px);
  }
  60% {
    transform: rotate(45deg) translateY(8px);
  }
}

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

.section-header {
  text-align: center;
  margin-bottom: 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-label {
  display: inline-block;
  padding: 10px 24px;
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
  transition: var(--duration-normal) var(--ease-standard);
  border: 1px solid rgba(var(--color-primary-rgb), 0.2);
  width: fit-content;
}

.section-label:hover {
  background: rgba(var(--color-primary-rgb), 0.15);
  border-color: rgba(var(--color-primary-rgb), 0.3);
  transform: scale(1.05);
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  margin-bottom: var(--space-20);
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
  color: var(--color-text-primary);
  text-shadow: 0 1px 2px rgba(30,41,59,0.04);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
}

.section-description {
  font-size: 18px;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
  font-weight: 400;
}

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

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-mesh);
  opacity: 0.5;
  pointer-events: none;
}

.about-text {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.lead-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-32);
  line-height: 1.7;
  color: var(--color-text);
}

.about-text p {
  margin-bottom: var(--space-24);
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  line-height: 1.8;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-32);
  margin-top: var(--space-32);
}

.stat-card {
  text-align: center;
  padding: var(--space-32) var(--space-24);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-card-border);
  position: relative;
  overflow: hidden;
}

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

.stat-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
  border-color: rgba(var(--color-primary-rgb), 0.3);
}

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

.stat-number {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-12);
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Skills Section - Enhanced */
.skills {
  position: relative;
}

.skills::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-mesh);
  opacity: 0.3;
  pointer-events: none;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-32);
  position: relative;
  z-index: 1;
}

.skill-card {
  padding: var(--space-32) var(--space-24);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-card-border);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}

.skill-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.skill-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  opacity: 0;
  transition: var(--duration-normal) var(--ease-standard);
  z-index: -1;
}

.skill-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.skill-card:hover::before {
  opacity: 1;
}

.skill-icon {
  color: var(--color-primary);
  margin-bottom: var(--space-24);
  transition: var(--duration-normal) var(--ease-standard);
}

.skill-card:hover .skill-icon {
  transform: scale(1.1) rotate(5deg);
  color: #f1f5f9;
}

.skill-card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.skill-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-24);
  line-height: 1.7;
}

.skill-level {
  height: 10px;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.skill-bar {
  height: 100%;
  background: var(--gradient-primary);
  width: 0;
  border-radius: var(--radius-full);
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.skill-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}

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

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

.experience::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-mesh);
  opacity: 0.3;
  pointer-events: none;
}

.timeline {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
}

.timeline-item {
  position: relative;
  padding-left: 80px;
  margin-bottom: var(--space-32);
  opacity: 0;
  transform: translateX(-30px);
  transition: var(--transition-slow);
}

.timeline-item.animate-in {
  opacity: 1;
  transform: translateX(0);
}

.timeline-dot {
  position: absolute;
  left: 20px;
  top: 0;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  box-shadow: 0 0 0 6px var(--color-surface), 0 0 0 12px rgba(var(--color-teal-500-rgb), 0.2);
  z-index: 2;
  transition: var(--duration-normal) var(--ease-standard);
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 8px var(--color-surface), 0 0 0 16px rgba(var(--color-teal-500-rgb), 0.3);
}

.timeline-content {
  padding: var(--space-32);
  background: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--duration-normal) var(--ease-standard);
  position: relative;
}

.timeline-content::before {
  content: '';
  position: absolute;
  left: -15px;
  top: 10px;
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-right: 15px solid var(--color-background);
}

.timeline-item:hover .timeline-content {
  transform: translateX(10px);
  box-shadow: var(--shadow-lg);
}

.timeline-date {
  display: inline-block;
  padding: var(--space-8) var(--space-16);
  background: rgba(255, 255, 255, 0.25);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-16);
  border: 1px solid var(--color-border);
}

.timeline-content h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-8);
  color: var(--color-text);
}

.timeline-content h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-20);
}

.timeline-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-20);
  line-height: 1.7;
}

.timeline-highlights {
  list-style: none;
  padding-left: 0;
}

.timeline-highlights li {
  position: relative;
  padding-left: var(--space-32);
  margin-bottom: var(--space-12);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

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

/* Projects Section - Enhanced */
.projects {
  position: relative;
}

.projects::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-mesh);
  opacity: 0.3;
  pointer-events: none;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-32);
  position: relative;
  z-index: 1;
}

.project-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-card-border);
  cursor: pointer;
  opacity: 0;
  transform: translateY(30px);
}

.project-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.project-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: var(--shadow-xl);
  border-color: rgba(var(--color-primary-rgb), 0.3);
}

.project-image {
  height: 220px;
  background: var(--gradient-primary);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.project-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(0,0,0,0.2) 100%);
  transition: var(--duration-normal) var(--ease-standard);
}

.project-card:hover .project-image::before {
  background: linear-gradient(135deg, transparent 0%, rgba(0,0,0,0.4) 100%);
}

.project-overlay {
  position: absolute;
  top: var(--space-20);
  left: var(--space-20);
  z-index: 2;
}

.project-tag {
  display: inline-block;
  padding: var(--space-10) var(--space-20);
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  color: var(--color-btn-primary-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.project-content {
  padding: var(--space-32);
}

.project-content h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-16);
  color: var(--color-text);
  transition: var(--duration-normal) var(--ease-standard);
}

.project-card:hover .project-content h3 {
  color: var(--color-primary);
}

.project-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-24);
  line-height: 1.7;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-12);
}

.tech-tag {
  padding: var(--space-8) var(--space-16);
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border: 1px solid var(--color-primary);
  transition: var(--duration-normal) var(--ease-standard);
}

.tech-tag:hover {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  transform: translateY(-2px);
}

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

.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-mesh);
  opacity: 0.3;
  pointer-events: none;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-32);
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.contact-form {
  background: var(--color-background);
  padding: var(--space-32);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--space-32);
}

.form-group label {
  display: block;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-12);
  color: var(--color-text);
  font-size: var(--font-size-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-16) var(--space-20);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-base);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  transition: var(--duration-normal) var(--ease-standard);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-background);
  box-shadow: var(--focus-ring);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

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

.contact-item {
  display: flex;
  gap: var(--space-20);
  padding: var(--space-32);
  background: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--duration-normal) var(--ease-standard);
}

.contact-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.contact-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-secondary);
  color: var(--color-text-on-secondary);
  border-radius: var(--radius-base);
  transition: var(--duration-normal) var(--ease-standard);
}

.contact-item:hover .contact-icon {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  transform: rotate(5deg) scale(1.1);
}

.qr-code {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.contact-details h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-8);
  color: var(--color-text);
}

.contact-details p,
.contact-details a {
  color: var(--color-text-secondary);
  text-decoration: none;
  line-height: 1.6;
  transition: var(--duration-normal) var(--ease-standard);
}

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

/* Footer - Enhanced */
.footer {
  background: var(--gradient-primary);
  color: var(--color-btn-primary-text);
  padding: var(--space-32) 0;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-mesh);
  opacity: 0.3;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-32);
  position: relative;
  z-index: 1;
}

.footer-content p {
  font-weight: var(--font-weight-medium);
  opacity: 0.95;
  margin-bottom: 0;
}

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

.footer-links a {
  color: var(--color-btn-primary-text);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  transition: var(--duration-normal) var(--ease-standard);
  position: relative;
}

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

.footer-links a:hover::after {
  width: 100%;
}

.footer-links a:hover {
  transform: translateY(-2px);
}

/* Loading Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-full);
  border-top-color: var(--color-btn-primary-text);
  animation: spin 0.6s linear infinite;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-social {
    justify-content: center;
  }
  
  .image-wrapper {
    height: 350px;
  }
  
  .hero-profile-image {
    width: 180px;
    height: 207px;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-background);
    flex-direction: column;
    padding: var(--space-32);
    box-shadow: var(--shadow-md);
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: var(--duration-normal) var(--ease-standard);
    gap: var(--space-24);
  }
  
  .nav-menu.nav-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .hero-title {
    font-size: var(--font-size-2xl);
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  section {
    padding: var(--space-32) 0;
  }
  
  .container {
    padding: 0 var(--space-20);
  }
  
  .hero-profile-image {
    width: 150px;
    height: 173px;
  }
}

@media (max-width: 640px) {
  .stats-grid,
  .skills-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline::before {
    left: 15px;
  }
  
  .timeline-item {
    padding-left: 50px;
  }
  
  .timeline-dot {
    left: 7px;
    width: 18px;
    height: 18px;
  }
  
  .floating-card {
    width: 70px;
    height: 70px;
    font-size: var(--font-size-2xl);
  }
  
  .hero-profile-image {
    width: 120px;
    height: 138px;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

/* Mobile portrait responsive breakpoint */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-16);
  }
  
  .theme-toggle {
    width: 48px;
    height: 48px;
    top: var(--space-16);
    right: var(--space-16);
  }
  
  .hero {
    min-height: 90vh;
  }
  
  .hero-profile-image {
    width: 100px;
    height: 115px;
  }
  
  .hero-title {
    font-size: var(--font-size-xl);
    line-height: var(--line-height-tight);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
  }
  
  .hero-description {
    font-size: var(--font-size-base);
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--space-12);
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .section-description {
    font-size: var(--font-size-base);
  }
  
  .skill-card,
  .project-card,
  .contact-form,
  .contact-item {
    padding: var(--space-20);
  }
  
  .stats-grid {
    gap: var(--space-16);
  }
  
  .stat-card {
    padding: var(--space-20);
  }
  
  .stat-number {
    font-size: var(--font-size-3xl);
  }
  
  .timeline-content {
    padding: var(--space-20);
  }
  
  .floating-card {
    width: 60px;
    height: 60px;
    font-size: var(--font-size-xl);
  }
  
  .image-wrapper {
    height: 250px;
  }
  
  .project-image {
    height: 180px;
  }
  
  .hero-social a {
    width: 40px;
    height: 40px;
  }
  
  .contact-icon {
    width: 48px;
    height: 48px;
  }
  
  .qr-code {
    width: 24px;
    height: 24px;
  }
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

.back-to-top:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top svg {
  transition: transform 0.3s ease;
}

.back-to-top:hover svg {
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
  }
}
a[title="Free Web Hosting with PHP8"]{
  display: none !important;
}