/* 
 * Design System v3
 * Warm, professional design system based on customer insights
 * Modular, maintainable, and scalable
 */

/* ============================================
   1. CSS VARIABLES & DESIGN TOKENS
   ============================================ */

:root {
  /* Brand Colors - Warm Palette */
  --color-cream: #FFEDD6;
  --color-cream-light: #FFF7EC;
  --color-sand: #FFE5C5;
  --color-sand-light: #FFF0DD;
  
  --color-primary: #FF6738;      /* Main orange */
  --color-primary-light: #FEA85E; /* Light orange */
  --color-primary-dark: #E85A2F;  /* Dark orange */
  
  --color-accent: #B24934;        /* Brown/burgundy */
  --color-accent-dark: #8B3A28;
  --color-accent-light: #C85943;
  
  /* Semantic Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  
  /* Text Colors */
  --color-text-primary: #B24934;
  --color-text-secondary: rgba(178, 73, 52, 0.8);
  --color-text-muted: rgba(178, 73, 52, 0.6);
  --color-text-inverse: #FFFFFF;
  
  /* Background Colors */
  --color-bg-primary: var(--color-cream);
  --color-bg-secondary: var(--color-sand);
  --color-bg-tertiary: var(--color-cream-light);
  --color-bg-card: rgba(255, 255, 255, 0.7);
  --color-bg-overlay: rgba(255, 255, 255, 0.9);
  
  /* Typography - Font Families */
  --font-sans: 'Sohne', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-serif: 'Charter', Georgia, 'Times New Roman', serif;
  --font-display: 'Sohne', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  
  /* Typography - Font Sizes (Fluid) */
  --text-xs: clamp(0.75rem, 0.7vw + 0.5rem, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8vw + 0.6rem, 1rem);
  --text-base: clamp(1rem, 1vw + 0.75rem, 1.125rem);
  --text-lg: clamp(1.125rem, 1.2vw + 0.875rem, 1.25rem);
  --text-xl: clamp(1.25rem, 1.5vw + 1rem, 1.5rem);
  --text-2xl: clamp(1.5rem, 2vw + 1.125rem, 2rem);
  --text-3xl: clamp(2rem, 3vw + 1.5rem, 3rem);
  --text-4xl: clamp(2.5rem, 4vw + 1.75rem, 4rem);
  --text-5xl: clamp(3rem, 5vw + 2rem, 5rem);
  --text-hero: clamp(3rem, 7vw + 1rem, 5.25rem);
  
  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  /* Line Heights */
  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.7;
  --leading-loose: 2;
  
  /* Letter Spacing */
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;
  
  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
  --container-max: 1200px;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-pill: 9999px;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(178, 73, 52, 0.05);
  --shadow-sm: 0 2px 4px rgba(178, 73, 52, 0.05);
  --shadow-md: 0 8px 16px rgba(178, 73, 52, 0.08);
  --shadow-lg: 0 20px 40px rgba(178, 73, 52, 0.1);
  --shadow-xl: 0 30px 60px rgba(178, 73, 52, 0.15);
  --shadow-card: 0 10px 30px rgba(255, 103, 56, 0.15);
  --shadow-hover: 0 15px 40px rgba(255, 103, 56, 0.25);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  --animation-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Z-Index Scale */
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Override base styles for v3 */
body.v3,
body.v3.docsie-background-img {
  background-color: var(--color-bg-primary) !important;
  background-image: none !important;
  background: var(--color-bg-primary) !important;
  color: var(--color-text-primary) !important;
  min-height: 100vh !important;
  overflow-x: hidden !important;
  overflow-y: auto !important;
}

/* Remove ALL background images and gradients */
body.v3::before,
body.v3::after,
body.v3 > *::before,
body.v3 > *::after {
  background-image: none !important;
  background: transparent !important;
  display: none !important;
}

/* Override header/footer for v3 */
.v3 header,
.v3 header.bg-white,
.v3 header.shadow-sm {
  background-color: var(--color-bg-primary) !important;
  background: var(--color-bg-primary) !important;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05) !important;
  border: none !important;
  border-bottom: 1px solid rgba(178, 73, 52, 0.1) !important;
  position: relative !important;
  z-index: 100 !important;
}

.v3 header nav,
.v3 header nav.container {
  background: var(--color-bg-primary) !important;
  background-color: var(--color-bg-primary) !important;
  padding: 25px 60px !important;
  box-shadow: none !important;
}

.v3 header .container {
  max-width: 1400px !important;
  background: transparent !important;
}

/* Remove any wrapper backgrounds but keep dropdowns solid */
.v3 header > *:not(.dropdown-menu),
.v3 header div:not(.dropdown-menu) {
  background-color: transparent !important;
}

/* Dropdown menus should have solid background */
.v3 header .dropdown-menu,
.v3 header [class*="dropdown"] {
  background-color: var(--color-bg-primary) !important;
  background: var(--color-bg-primary) !important;
  border: 1px solid rgba(178, 73, 52, 0.15) !important;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1) !important;
  border-radius: 12px !important;
  padding: 8px 0 !important;
  margin-top: 8px !important;
}

/* Style header navigation links */
.v3 header a:not([href*="app.docsie.io"]):not(.border-2):not([href="/"]) {
  color: var(--color-text-primary) !important;
  font-weight: 500 !important;
  font-size: 18px !important;
  text-decoration: none !important;
  transition: color 0.3s ease !important;
}

.v3 header a:not([href*="app.docsie.io"]):not(.border-2):not([href="/"]):hover {
  color: var(--color-primary) !important;
}

/* Logo specific styling - stronger brown */
.v3 header a[href="/"],
.v3 header .logo {
  color: var(--color-accent) !important;
  font-weight: 700 !important;
}

/* Header CTA buttons should be prominent */
.v3 header a[href*="app.docsie.io"],
.v3 header .bg-docsie-primary,
.v3 header .bg-green-600 {
  background-color: var(--color-primary) !important;
  color: white !important;
  border-radius: 30px !important;
  padding: 12px 30px !important;
  font-weight: 500 !important;
  font-size: 18px !important;
  box-shadow: 0 5px 15px rgba(255, 103, 56, 0.3) !important;
  transition: all 0.3s ease !important;
  border: 2px solid var(--color-primary) !important;
}

.v3 header a[href*="app.docsie.io"]:hover,
.v3 header .bg-docsie-primary:hover,
.v3 header .bg-green-600:hover {
  background-color: var(--color-primary-light) !important;
  border-color: var(--color-primary-light) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 10px 25px rgba(254, 168, 94, 0.4) !important;
}

/* Header outline button */
.v3 header .border-2,
.v3 header a.border-2 {
  background-color: transparent !important;
  border: 2px solid var(--color-primary) !important;
  color: var(--color-text-primary) !important;
  border-radius: 30px !important;
  padding: 12px 30px !important;
  font-weight: 500 !important;
  font-size: 18px !important;
  transition: all 0.3s ease !important;
}

.v3 header .border-2:hover,
.v3 header a.border-2:hover {
  background-color: var(--color-primary) !important;
  color: white !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 10px 20px rgba(255, 103, 56, 0.3) !important;
}

/* Header logo - stronger accent */
.v3 header .text-docsie-primary,
.v3 header svg path,
.v3 header svg {
  color: var(--color-accent) !important;
  fill: var(--color-accent) !important;
}

/* Make logo text stronger */
.v3 header a[href="/"] svg {
  filter: none !important;
}

/* Footer styling for v3 */
.v3 footer,
.v3 .footer-v2 {
  background-color: var(--color-accent) !important;
  background-image: none !important;
  background: var(--color-accent) !important;
  color: white !important;
  margin-top: 0 !important;
  padding: 60px 0 40px !important;
  display: block !important;
  visibility: visible !important;
  position: relative !important;
  z-index: 10 !important;
  width: 100% !important;
  clear: both !important;
}

.v3 footer *,
.v3 .footer-v2 * {
  color: white !important;
}

.v3 footer a,
.v3 .footer-v2 a {
  color: white !important;
  opacity: 0.9;
  transition: opacity 0.3s ease;
}

.v3 footer a:hover,
.v3 .footer-v2 a:hover {
  opacity: 1;
  color: var(--color-cream) !important;
}

/* Override gradient background on footer */
.v3 .bg-gradient-to-br {
  background-image: none !important;
}

.v3 main {
  background-color: transparent !important;
  background: transparent !important;
  min-height: auto !important;
  height: auto !important;
}

/* Ensure sections use proper backgrounds */
.v3 .section {
  background-color: transparent;
}

.v3 .section.bg-secondary {
  background-color: var(--color-bg-secondary) !important;
}

.v3 .section.bg-primary {
  background-color: var(--color-primary) !important;
}

/* Override ALL green buttons to use warm orange */
.v3 .bg-green-600,
.v3 .bg-docsie-primary,
.v3 [class*="bg-green"] {
  background-color: var(--color-primary) !important;
}

.v3 .hover\:bg-green-700:hover,
.v3 .hover\:bg-docsie-primary-dark:hover {
  background-color: var(--color-primary-dark) !important;
}

.v3 .text-green-600,
.v3 .text-docsie-primary {
  color: var(--color-primary) !important;
}

.v3 .border-green-600,
.v3 .border-docsie-primary {
  border-color: var(--color-primary) !important;
}

/* Override buttons to warm aesthetic - MORE PROMINENT */
.v3 a[href*="app.docsie.io"],
.v3 button.bg-green-600,
.v3 .bg-green-600,
.v3 a.bg-docsie-primary,
.v3 .btn-primary {
  background-color: var(--color-primary) !important;
  color: white !important;
  border-radius: 40px !important;
  padding: 18px 50px !important;
  font-weight: 500 !important;
  font-size: 24px !important;
  box-shadow: 0 10px 30px rgba(255, 103, 56, 0.3) !important;
  transition: all 0.3s ease !important;
  border: 2px solid var(--color-primary) !important;
  display: inline-block !important;
}

.v3 a[href*="app.docsie.io"]:hover,
.v3 button.bg-green-600:hover,
.v3 .bg-green-600:hover,
.v3 a.bg-docsie-primary:hover,
.v3 .btn-primary:hover {
  background-color: var(--color-primary-light) !important;
  border-color: var(--color-primary-light) !important;
  transform: translateY(-3px) !important;
  box-shadow: 0 15px 40px rgba(254, 168, 94, 0.4) !important;
}

/* Override outline buttons - MORE PROMINENT */
.v3 .border-green-600,
.v3 .border-2.border-docsie-primary,
.v3 a.border-2,
.v3 .btn-outline {
  background-color: transparent !important;
  border: 2px solid var(--color-primary) !important;
  color: var(--color-text-primary) !important;
  border-radius: 40px !important;
  padding: 16px 48px !important;
  font-weight: 600 !important;
  font-size: 20px !important;
  transition: all 0.3s ease !important;
  display: inline-block !important;
}

.v3 .border-green-600:hover,
.v3 .border-2.border-docsie-primary:hover,
.v3 a.border-2:hover,
.v3 .btn-outline:hover {
  background-color: var(--color-primary) !important;
  color: white !important;
  transform: translateY(-3px) !important;
  box-shadow: 0 10px 20px rgba(255, 103, 56, 0.3) !important;
}

/* Special section for primary color */
.v3 .bg-primary {
  background-color: var(--color-primary) !important;
}

.v3 .text-white {
  color: var(--color-text-inverse) !important;
}

/* Button overrides for v3 */
.v3 .btn-white {
  background-color: white;
  color: var(--color-primary);
  border-color: white;
}

.v3 .btn-white:hover {
  background-color: var(--color-cream-light);
  transform: translateY(-2px);
}

.v3 .btn-outline-white {
  background-color: transparent;
  color: white;
  border-color: white;
}

.v3 .btn-outline-white:hover {
  background-color: white;
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* Override badges/trust signals */
.v3 [class*="bg-green"][class*="bg-opacity"] {
  background-color: rgba(255, 103, 56, 0.1) !important;
}

/* Override check marks and icons */
.v3 .text-green-500,
.v3 .text-green-600 {
  color: var(--color-primary) !important;
}

/* Body text styling */
.v3 p, 
.v3 .body-text {
  font-family: var(--font-serif);
  line-height: 1.7 !important;
  color: var(--color-text-primary) !important;
  font-size: 1.25rem !important;
}

.v3 .text-xl {
  font-size: 1.5rem !important;
  line-height: 1.6 !important;
}

.v3 .text-lg {
  font-size: 1.25rem !important;
}

.v3 .text-secondary {
  color: var(--color-text-primary) !important;
  opacity: 0.85;
}

/* Ensure v3 uses the proper fonts */
.v3 body,
.v3 * {
  font-family: var(--font-sans);
}

.v3 h1, 
.v3 h2, 
.v3 h3, 
.v3 h4, 
.v3 h5, 
.v3 h6 {
  font-family: var(--font-display);
  color: var(--color-text-primary);
  font-weight: var(--font-bold);
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
}

h1 { font-size: var(--text-hero); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }
.text-5xl { font-size: var(--text-5xl); }
.text-hero { font-size: var(--text-hero); }

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

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

/* ============================================
   4. LAYOUT COMPONENTS
   ============================================ */

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

.section {
  padding: var(--space-3xl) 0;
}

.section-compact {
  padding: var(--space-2xl) 0;
}

.section-large {
  padding: var(--space-4xl) 0;
}

/* Background variants */
.bg-primary { background-color: var(--color-bg-primary); }
.bg-secondary { background-color: var(--color-bg-secondary); }
.bg-tertiary { background-color: var(--color-bg-tertiary); }

/* ============================================
   5. BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

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

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-large {
  padding: calc(var(--space-md) * 0.75) var(--space-2xl);
  font-size: var(--text-lg);
}

.btn-small {
  padding: calc(var(--space-xs) * 1.5) var(--space-md);
  font-size: var(--text-sm);
}

/* ============================================
   6. CARDS
   ============================================ */

.card {
  background-color: var(--color-bg-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

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

.card-pillar {
  color: var(--color-text-inverse);
  padding: var(--space-xl);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-base);
  position: relative;
}

.card-pillar-orange {
  background-color: var(--color-primary-light);
  transform: rotate(-2deg);
}

.card-pillar-red {
  background-color: var(--color-primary);
  transform: rotate(1deg);
}

.card-pillar-brown {
  background-color: var(--color-accent);
  transform: rotate(-1deg);
}

.card-pillar:hover {
  transform: rotate(0deg) scale(1.05);
  z-index: 10;
}

/* ============================================
   7. BADGES & PILLS
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: calc(var(--space-xs) * 0.75) var(--space-md);
  background-color: var(--color-bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(178, 73, 52, 0.2);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
}

.badge-group {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(178, 73, 52, 0.2);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-xs);
}

.badge-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding-right: var(--space-md);
  border-right: 1px solid rgba(178, 73, 52, 0.2);
}

.badge-item:last-child {
  border-right: none;
  padding-right: 0;
}

/* ============================================
   8. NAVIGATION
   ============================================ */

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) var(--space-3xl);
  background-color: transparent;
}

.nav-logo {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-primary);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  transition: all var(--transition-base);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}

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

.nav-buttons {
  display: flex;
  gap: var(--space-md);
}

/* ============================================
   9. FORMS & INPUTS
   ============================================ */

.input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-card);
  border: 2px solid rgba(178, 73, 52, 0.2);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(255, 103, 56, 0.1);
}

/* ============================================
   10. UTILITIES
   ============================================ */

/* Layout helpers */
.mx-auto { margin-left: auto; margin-right: auto; }
.max-w-900 { max-width: 900px; }
.max-w-800 { max-width: 800px; }
.max-w-1000 { max-width: 1000px; }

/* Animation delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Icon colors */
.icon-primary { color: var(--color-primary); }
.icon-success { color: var(--color-success); }

/* Spacing */
.mt-0 { margin-top: 0; }
.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }

.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

/* Text alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

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

/* Flexbox */
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.flex-wrap { flex-wrap: wrap; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* Grid */
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Animations */
.animate-fade-in {
  animation: fadeIn var(--transition-slow) ease-out;
}

.animate-slide-up {
  animation: slideUp var(--transition-slow) ease-out;
}

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

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

/* ============================================
   11. RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
  :root {
    --space-3xl: 4rem;
    --space-4xl: 6rem;
  }
  
  .nav {
    padding: var(--space-md);
  }
  
  .nav-links {
    display: none;
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
  
  .grid-cols-3 {
    grid-template-columns: 1fr;
  }
  
  .hide-mobile {
    display: none;
  }
}

@media (min-width: 769px) {
  .hide-desktop {
    display: none;
  }
}

/* ============================================
   12. PRINT STYLES
   ============================================ */

@media print {
  body {
    background: white;
    color: black;
  }
  
  .no-print {
    display: none;
  }
}