/**
 * Modern Design System for Signal Swap
 * Unified, sleek, and user-convenient styling across all pages
 * Version: 2.0.0
 */

/* ==========================================================================
   CSS Custom Properties - Modern Design Tokens
   ========================================================================== */

:root {
  /* ========================
     Color System - Professional & Modern
     ======================== */
  
  /* Neutral Colors - Enhanced Contrast */
  --color-neutral-0: #ffffff;
  --color-neutral-50: #fafafa;
  --color-neutral-100: #f5f5f5;
  --color-neutral-200: #e5e5e5;
  --color-neutral-300: #d4d4d4;
  --color-neutral-400: #a3a3a3;
  --color-neutral-500: #737373;
  --color-neutral-600: #525252;
  --color-neutral-700: #404040;
  --color-neutral-800: #262626;
  --color-neutral-900: #171717;
  --color-neutral-950: #0a0a0a;

  /* Dark Theme Colors (Default) */
  --color-background: #0a0a0a;
  --color-surface: #171717;
  --color-surface-elevated: #262626;
  --color-surface-hover: #404040;
  --color-border: #404040;
  --color-border-hover: #525252;
  --color-text-primary: #fafafa;
  --color-text-secondary: #a3a3a3;
  --color-text-muted: #737373;
  --color-text-inverse: #0a0a0a;

  /* Brand Colors - Trading-focused */
  --color-primary-50: #ecfdf5;
  --color-primary-100: #d1fae5;
  --color-primary-200: #a7f3d0;
  --color-primary-300: #6ee7b7;
  --color-primary-400: #34d399;
  --color-primary-500: #10b981; /* Main brand color */
  --color-primary-600: #059669;
  --color-primary-700: #047857;
  --color-primary-800: #065f46;
  --color-primary-900: #064e3b;
  --color-primary-950: #022c22;

  /* Semantic Colors */
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.1);
  --color-error: #ef4444;
  --color-error-bg: rgba(239, 68, 68, 0.1);
  --color-info: #3b82f6;
  --color-info-bg: rgba(59, 130, 246, 0.1);

  /* Trading Colors */
  --color-profit: #10b981;
  --color-loss: #ef4444;
  --color-neutral-change: #6b7280;

  /* ========================
     Typography System
     ======================== */
  
  /* Font Families */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', Monaco, 'Cascadia Code', monospace;
  --font-family-display: 'Inter', system-ui, sans-serif;

  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-black: 900;

  /* Font Sizes - Fluid Typography */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.3vw, 1rem);
  --font-size-base: clamp(1rem, 0.9rem + 0.4vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 1.3rem + 0.8vw, 1.875rem);
  --font-size-3xl: clamp(1.875rem, 1.6rem + 1vw, 2.25rem);
  --font-size-4xl: clamp(2.25rem, 1.9rem + 1.4vw, 3rem);
  --font-size-5xl: clamp(3rem, 2.5rem + 2vw, 4rem);

  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;

  /* ========================
     Spacing System
     ======================== */
  
  --space-px: 1px;
  --space-0: 0;
  --space-0-5: 0.125rem;
  --space-1: 0.25rem;
  --space-1-5: 0.375rem;
  --space-2: 0.5rem;
  --space-2-5: 0.625rem;
  --space-3: 0.75rem;
  --space-3-5: 0.875rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 1.75rem;
  --space-8: 2rem;
  --space-9: 2.25rem;
  --space-10: 2.5rem;
  --space-11: 2.75rem;
  --space-12: 3rem;
  --space-14: 3.5rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-28: 7rem;
  --space-32: 8rem;
  --space-36: 9rem;
  --space-40: 10rem;
  --space-44: 11rem;
  --space-48: 12rem;
  --space-52: 13rem;
  --space-56: 14rem;
  --space-60: 15rem;
  --space-64: 16rem;
  --space-72: 18rem;
  --space-80: 20rem;
  --space-96: 24rem;

  /* ========================
     Border Radius System
     ======================== */
  
  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius-base: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* ========================
     Shadow System
     ======================== */
  
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-2xl: 0 50px 100px -20px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);

  /* ========================
     Animation System
     ======================== */
  
  --duration-75: 75ms;
  --duration-100: 100ms;
  --duration-150: 150ms;
  --duration-200: 200ms;
  --duration-300: 300ms;
  --duration-500: 500ms;
  --duration-700: 700ms;
  --duration-1000: 1000ms;

  --easing-linear: linear;
  --easing-in: cubic-bezier(0.4, 0, 1, 1);
  --easing-out: cubic-bezier(0, 0, 0.2, 1);
  --easing-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --easing-spring: cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* ========================
     Z-Index System
     ======================== */
  
  --z-index-hide: -1;
  --z-index-auto: auto;
  --z-index-base: 0;
  --z-index-docked: 10;
  --z-index-dropdown: 1000;
  --z-index-sticky: 1100;
  --z-index-banner: 1200;
  --z-index-overlay: 1300;
  --z-index-modal: 1400;
  --z-index-popover: 1500;
  --z-index-skipLink: 1600;
  --z-index-toast: 1700;
  --z-index-tooltip: 1800;

  /* ========================
     Layout System
     ======================== */
  
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;

  /* ========================
     Component Specific
     ======================== */
  
  /* Forms */
  --form-input-height: 2.75rem;
  --form-input-padding-x: var(--space-3);
  --form-input-padding-y: var(--space-2-5);
  --form-input-border-width: 1px;
  --form-input-focus-ring-width: 2px;

  /* Buttons */
  --button-height-sm: 2rem;
  --button-height-md: 2.5rem;
  --button-height-lg: 3rem;
  --button-padding-x-sm: var(--space-3);
  --button-padding-x-md: var(--space-4);
  --button-padding-x-lg: var(--space-6);

  /* Cards */
  --card-padding: var(--space-6);
  --card-gap: var(--space-4);
}

/* Light Theme Override */
[data-theme="light"] {
  --color-background: #ffffff;
  --color-surface: #fafafa;
  --color-surface-elevated: #ffffff;
  --color-surface-hover: #f5f5f5;
  --color-border: #e5e5e5;
  --color-border-hover: #d4d4d4;
  --color-text-primary: #171717;
  --color-text-secondary: #525252;
  --color-text-muted: #737373;
  --color-text-inverse: #ffffff;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

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

html {
  line-height: var(--line-height-normal);
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-display);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  letter-spacing: -0.025em;
}

h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-black);
  letter-spacing: -0.05em;
}

h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
}

h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
}

h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

h5 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}

h6 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

a {
  color: var(--color-primary-500);
  text-decoration: none;
  transition: color var(--duration-200) var(--easing-out);
}

a:hover {
  color: var(--color-primary-400);
  text-decoration: underline;
}

a:focus {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

code {
  font-family: var(--font-family-mono);
  font-size: 0.875em;
  background-color: var(--color-surface-elevated);
  padding: var(--space-1) var(--space-1-5);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

pre {
  font-family: var(--font-family-mono);
  background-color: var(--color-surface-elevated);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow-x: auto;
  line-height: var(--line-height-relaxed);
}

/* ==========================================================================
   Layout Utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }
.container-2xl { max-width: var(--container-2xl); }

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-initial { flex: 0 1 auto; }
.flex-none { flex: none; }

/* Gap Utilities */
.gap-0 { gap: var(--space-0); }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }

/* ==========================================================================
   Component Styles
   ========================================================================== */

/* Cards */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--card-padding);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-200) var(--easing-out);
}

.card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-md);
}

.card-header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-6);
}

.card-header h1,
.card-header h2,
.card-header h3 {
  margin-bottom: var(--space-1);
}

.card-footer {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
  margin-top: var(--space-6);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-200) var(--easing-out);
  user-select: none;
  height: var(--button-height-md);
  padding: 0 var(--button-padding-x-md);
}

.btn:focus {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button Variants */
.btn-primary {
  background-color: var(--color-primary-500);
  color: white;
  border-color: var(--color-primary-500);
}

.btn-primary:hover {
  background-color: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.btn-secondary {
  background-color: var(--color-surface-elevated);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--color-primary-500);
  border-color: var(--color-primary-500);
}

.btn-outline:hover {
  background-color: var(--color-primary-500);
  color: white;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}

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

/* Button Sizes */
.btn-sm {
  height: var(--button-height-sm);
  padding: 0 var(--button-padding-x-sm);
  font-size: var(--font-size-xs);
}

.btn-lg {
  height: var(--button-height-lg);
  padding: 0 var(--button-padding-x-lg);
  font-size: var(--font-size-base);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  height: var(--form-input-height);
  padding: var(--form-input-padding-y) var(--form-input-padding-x);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: var(--form-input-border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--duration-200) var(--easing-out);
}

.form-textarea {
  height: auto;
  min-height: calc(var(--form-input-height) * 2.5);
  resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 var(--form-input-focus-ring-width) rgba(16, 185, 129, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-help {
  margin-top: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.form-error {
  margin-top: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-error);
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  margin: var(--space-4) 0;
}

.table th,
.table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  background-color: var(--color-surface-elevated);
  position: sticky;
  top: 0;
  z-index: var(--z-index-docked);
}

.table tbody tr:hover {
  background-color: var(--color-surface-hover);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-primary {
  background-color: var(--color-primary-500);
  color: white;
}

.badge-secondary {
  background-color: var(--color-surface-elevated);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

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

.badge-warning {
  background-color: var(--color-warning);
  color: white;
}

.badge-error {
  background-color: var(--color-error);
  color: white;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

/* Spacing */
.m-0 { margin: var(--space-0); }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-5 { margin: var(--space-5); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }
.m-10 { margin: var(--space-10); }
.m-12 { margin: var(--space-12); }

.p-0 { padding: var(--space-0); }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.p-10 { padding: var(--space-10); }
.p-12 { padding: var(--space-12); }

/* Text */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }

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

.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

/* Display */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Border Radius */
.rounded-none { border-radius: var(--radius-none); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-base); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadow */
.shadow-none { box-shadow: none; }
.shadow-xs { box-shadow: var(--shadow-xs); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-base); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* ==========================================================================
   Animation & Transitions
   ========================================================================== */

.transition {
  transition: all var(--duration-200) var(--easing-out);
}

.animate-fade-in {
  animation: fadeIn var(--duration-300) var(--easing-out);
}

.animate-slide-up {
  animation: slideUp var(--duration-300) var(--easing-out);
}

.animate-scale-in {
  animation: scaleIn var(--duration-200) var(--easing-spring);
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(var(--space-4));
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (min-width: 640px) {
  .sm\:grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sm\:text-left { text-align: left; }
  .sm\:text-center { text-align: center; }
}

@media (min-width: 768px) {
  .md\:grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md\:flex-row { flex-direction: row; }
  .md\:justify-between { justify-content: space-between; }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

@media (min-width: 1280px) {
  .xl\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .xl\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .xl\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

/* ==========================================================================
   Performance Optimizations
   ========================================================================== */

/* Improve font rendering */
.optimize-text {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Promote layers for better performance */
.will-change-transform { will-change: transform; }
.will-change-opacity { will-change: opacity; }
.will-change-scroll { will-change: scroll-position; }

/* Hardware acceleration for smooth animations */
.gpu-accelerate {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

/* 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: 0;
}

/* Focus styles */
.focus-ring:focus {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

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