/* 
   VotreMachine.com - Modern Styles
   Version: 2.0
   Last Updated: 2025
   Description: Modern, responsive, and accessible CSS for VotreMachine.com
*/

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
  /* Colors */
  --primary-50: #f5f9e9;
  --primary-100: #e8f1d0;
  --primary-200: #d1e3a1;
  --primary-500: #8fbf31;
  --primary-600: #7ba629;
  --primary-700: #6b8d24;
  --primary-900: #4a5f19;
  
  --secondary-50: #fef3f0;
  --secondary-100: #fde5dd;
  --secondary-200: #fbcabb;
  --secondary-500: #f06400;
  --secondary-600: #e55a00;
  --secondary-700: #cc5100;
  --secondary-900: #993c00;
  
  --neutral-50: #f8fafc;
  --neutral-100: #f1f5f9;
  --neutral-200: #e2e8f0;
  --neutral-300: #cbd5e1;
  --neutral-400: #94a3b8;
  --neutral-500: #64748b;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1e293b;
  --neutral-900: #0f172a;
  
  /* Semantic colors */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Typography */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-family-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Borders & Radius */
  --border-width: 1px;
  --border-width-2: 2px;
  --border-width-4: 4px;
  
  --border-radius-sm: 0.375rem;
  --border-radius: 0.5rem;
  --border-radius-md: 0.75rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  --border-radius-2xl: 2rem;
  --border-radius-full: 9999px;
  
  /* Shadows */
  --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-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --max-width-sm: 640px;
  --max-width-md: 768px;
  --max-width-lg: 1024px;
  --max-width-xl: 1280px;
  --max-width-2xl: 1536px;
  --max-width-full: 100%;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ===== RESET & BASE STYLES ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

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(--neutral-800);
  background-color: var(--neutral-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--neutral-900);
  margin-bottom: var(--spacing-md);
}

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-base); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--neutral-700);
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus {
  color: var(--primary-700);
  text-decoration: underline;
}

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

strong, b {
  font-weight: var(--font-weight-semibold);
}

em, i {
  font-style: italic;
}

small {
  font-size: var(--font-size-sm);
  color: var(--neutral-600);
}

/* ===== LAYOUT COMPONENTS ===== */
.container {
  width: 100%;
  max-width: var(--max-width-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

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

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

.section-lg {
  padding: var(--spacing-4xl) 0;
}

/* ===== GRID SYSTEM ===== */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.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-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.grid-auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-auto-fill {
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

/* ===== FLEXBOX UTILITIES ===== */
.flex { display: flex; }
.inline-flex { display: inline-flex; }

.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-row-reverse { flex-direction: row-reverse; }
.flex-col-reverse { flex-direction: column-reverse; }

.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

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

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

.gap-0 { gap: 0; }
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-4 { gap: var(--spacing-md); }
.gap-6 { gap: var(--spacing-lg); }
.gap-8 { gap: var(--spacing-xl); }

/* ===== BUTTON COMPONENTS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  text-align: center;
  text-decoration: none;
  border: var(--border-width) solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

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

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button sizes */
.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-xl {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-xl);
}

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

.btn-primary:hover {
  background-color: var(--primary-600);
  border-color: var(--primary-600);
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--secondary-500);
  border-color: var(--secondary-500);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--secondary-600);
  border-color: var(--secondary-600);
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background-color: var(--primary-500);
  border-color: var(--primary-500);
  color: white;
  text-decoration: none;
}

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

.btn-ghost:hover {
  background-color: var(--primary-50);
  color: var(--primary-600);
  text-decoration: none;
}

/* ===== FORM COMPONENTS ===== */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: inline-block;
  margin-bottom: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
  color: var(--neutral-700);
}

.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--neutral-800);
  background-color: white;
  border: var(--border-width) solid var(--neutral-300);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(143, 191, 49, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--neutral-400);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Form validation states */
.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
  border-color: var(--error);
}

.form-input.is-valid,
.form-select.is-valid,
.form-textarea.is-valid {
  border-color: var(--success);
}

.form-error {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--error);
}

.form-help {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--neutral-600);
}

/* ===== CARD COMPONENTS ===== */
.card {
  background-color: white;
  border: var(--border-width) solid var(--neutral-200);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-md);
  border-bottom: var(--border-width) solid var(--neutral-200);
  background-color: var(--neutral-50);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
  border-top: var(--border-width) solid var(--neutral-200);
  background-color: var(--neutral-50);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--neutral-600);
  margin-bottom: var(--spacing-md);
}

.card-text {
  color: var(--neutral-700);
  line-height: var(--line-height-relaxed);
}

/* ===== TABLE COMPONENTS ===== */
.table {
  width: 100%;
  border-collapse: collapse;
  background-color: white;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: var(--border-width) solid var(--neutral-200);
}

.table th {
  background-color: var(--neutral-50);
  font-weight: var(--font-weight-semibold);
  color: var(--neutral-700);
}

.table tbody tr:hover {
  background-color: var(--neutral-50);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* ===== ALERT COMPONENTS ===== */
.alert {
  padding: var(--spacing-md);
  border: var(--border-width) solid;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
}

.alert-success {
  background-color: #f0fdf4;
  border-color: #bbf7d0;
  color: #15803d;
}

.alert-warning {
  background-color: #fffbeb;
  border-color: #fed7aa;
  color: #d97706;
}

.alert-error {
  background-color: #fef2f2;
  border-color: #fecaca;
  color: #dc2626;
}

.alert-info {
  background-color: #eff6ff;
  border-color: #bfdbfe;
  color: #1d4ed8;
}

/* ===== BADGE COMPONENTS ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  border-radius: var(--border-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

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

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

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

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

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

/* ===== MODAL COMPONENTS ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background-color: white;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-2xl);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
  border-bottom: var(--border-width) solid var(--neutral-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--neutral-100);
}

.modal-body {
  padding: var(--spacing-xl);
  overflow-y: auto;
}

.modal-footer {
  padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl);
  border-top: var(--border-width) solid var(--neutral-200);
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}

/* ===== DROPDOWN COMPONENTS ===== */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: var(--z-dropdown);
  min-width: 200px;
  background-color: white;
  border: var(--border-width) solid var(--neutral-200);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  overflow: hidden;
}

.dropdown.active .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  color: var(--neutral-700);
  transition: background-color var(--transition-fast);
  border: none;
  background: none;
  text-align: left;
  cursor: pointer;
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: var(--neutral-50);
  color: var(--neutral-900);
  text-decoration: none;
}

.dropdown-divider {
  height: var(--border-width);
  background-color: var(--neutral-200);
  margin: var(--spacing-sm) 0;
}

/* ===== LOADING & SKELETON COMPONENTS ===== */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--neutral-200);
  border-top: 2px solid var(--primary-500);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.skeleton {
  background: linear-gradient(90deg, var(--neutral-200) 25%, var(--neutral-100) 50%, var(--neutral-200) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--border-radius);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--spacing-sm);
}

.skeleton-text:last-child {
  width: 60%;
  margin-bottom: 0;
}

/* ===== UTILITY CLASSES ===== */

/* Spacing */
.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-xs); }
.m-2 { margin: var(--spacing-sm); }
.m-4 { margin: var(--spacing-md); }
.m-6 { margin: var(--spacing-lg); }
.m-8 { margin: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-4 { margin-top: var(--spacing-md); }
.mt-6 { margin-top: var(--spacing-lg); }
.mt-8 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-4 { margin-bottom: var(--spacing-md); }
.mb-6 { margin-bottom: var(--spacing-lg); }
.mb-8 { margin-bottom: var(--spacing-xl); }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: var(--spacing-xs); }
.ml-2 { margin-left: var(--spacing-sm); }
.ml-4 { margin-left: var(--spacing-md); }
.ml-6 { margin-left: var(--spacing-lg); }
.ml-8 { margin-left: var(--spacing-xl); }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: var(--spacing-xs); }
.mr-2 { margin-right: var(--spacing-sm); }
.mr-4 { margin-right: var(--spacing-md); }
.mr-6 { margin-right: var(--spacing-lg); }
.mr-8 { margin-right: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-4 { padding: var(--spacing-md); }
.p-6 { padding: var(--spacing-lg); }
.p-8 { padding: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-4 { padding-top: var(--spacing-md); }
.pt-6 { padding-top: var(--spacing-lg); }
.pt-8 { padding-top: var(--spacing-xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-4 { padding-bottom: var(--spacing-md); }
.pb-6 { padding-bottom: var(--spacing-lg); }
.pb-8 { padding-bottom: var(--spacing-xl); }

.pl-0 { padding-left: 0; }
.pl-1 { padding-left: var(--spacing-xs); }
.pl-2 { padding-left: var(--spacing-sm); }
.pl-4 { padding-left: var(--spacing-md); }
.pl-6 { padding-left: var(--spacing-lg); }
.pl-8 { padding-left: var(--spacing-xl); }

.pr-0 { padding-right: 0; }
.pr-1 { padding-right: var(--spacing-xs); }
.pr-2 { padding-right: var(--spacing-sm); }
.pr-4 { padding-right: var(--spacing-md); }
.pr-6 { padding-right: var(--spacing-lg); }
.pr-8 { padding-right: var(--spacing-xl); }

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

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

/* Font weights */
.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); }

/* Text colors */
.text-primary { color: var(--primary-500); }
.text-secondary { color: var(--secondary-500); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }
.text-neutral-400 { color: var(--neutral-400); }
.text-neutral-600 { color: var(--neutral-600); }
.text-neutral-700 { color: var(--neutral-700); }
.text-neutral-900 { color: var(--neutral-900); }

/* Background colors */
.bg-white { background-color: white; }
.bg-primary { background-color: var(--primary-500); }
.bg-secondary { background-color: var(--secondary-500); }
.bg-neutral-50 { background-color: var(--neutral-50); }
.bg-neutral-100 { background-color: var(--neutral-100); }

/* Border radius */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--border-radius-sm); }
.rounded { border-radius: var(--border-radius); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-xl { border-radius: var(--border-radius-xl); }
.rounded-full { border-radius: var(--border-radius-full); }

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

/* Width & Height */
.w-full { width: 100%; }
.w-auto { width: auto; }
.h-full { height: 100%; }
.h-auto { height: auto; }

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

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 640px) {
  /* Mobile-first adjustments */
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
  
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
  
  .btn-xl {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
  }
  
  .modal {
    max-width: 95vw;
    margin: var(--spacing-md);
  }
  
  .dropdown-menu {
    left: 0;
    right: 0;
    min-width: auto;
  }
  
  /* Mobile-specific utilities */
  .sm\:hidden { display: none; }
  .sm\:block { display: block; }
  .sm\:text-center { text-align: center; }
  .sm\:text-left { text-align: left; }
}

@media (min-width: 641px) and (max-width: 768px) {
  /* Tablet adjustments */
  .grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  
  .md\:hidden { display: none; }
  .md\:block { display: block; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 769px) {
  /* Desktop adjustments */
  .lg\:hidden { display: none; }
  .lg\:block { display: block; }
  .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\:text-left { text-align: left; }
  .lg\:text-center { text-align: center; }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

@keyframes slideIn {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Animation utilities */
.animate-fadeIn { animation: fadeIn 0.5s ease-out; }
.animate-fadeInUp { animation: fadeInUp 0.6s ease-out; }
.animate-fadeInDown { animation: fadeInDown 0.6s ease-out; }
.animate-slideIn { animation: slideIn 0.5s ease-out; }
.animate-bounce { animation: bounce 2s infinite; }
.animate-pulse { animation: pulse 2s infinite; }

/* ===== 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: 0;
}

.visually-hidden-focusable:focus {
  position: static;
  width: auto;
  height: auto;
  padding: var(--spacing-sm);
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background-color: var(--primary-500);
  color: white;
  border-radius: var(--border-radius);
}

/* Focus management */
.focus\:outline-none:focus { outline: none; }
.focus\:ring:focus { 
  outline: none;
  box-shadow: 0 0 0 3px rgba(143, 191, 49, 0.3);
}

/* High contrast mode */
@media (prefers-contrast: high) {
  :root {
    --neutral-100: #ffffff;
    --neutral-900: #000000;
    --primary-500: #006600;
    --secondary-500: #cc3300;
  }
  
  .btn {
    border-width: var(--border-width-2);
  }
  
  .card {
    border-width: var(--border-width-2);
  }
}

/* Reduced motion */
@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;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --neutral-50: #0f172a;
    --neutral-100: #1e293b;
    --neutral-200: #334155;
    --neutral-300: #475569;
    --neutral-400: #64748b;
    --neutral-500: #94a3b8;
    --neutral-600: #cbd5e1;
    --neutral-700: #e2e8f0;
    --neutral-800: #f1f5f9;
    --neutral-900: #f8fafc;
  }
  
  body {
    background-color: var(--neutral-100);
    color: var(--neutral-800);
  }
  
  .card {
    background-color: var(--neutral-100);
    border-color: var(--neutral-300);
  }
  
  .form-input,
  .form-select,
  .form-textarea {
    background-color: var(--neutral-100);
    border-color: var(--neutral-300);
    color: var(--neutral-800);
  }
  
  .table {
    background-color: var(--neutral-100);
  }
  
  .table th {
    background-color: var(--neutral-200);
  }
}

/* Print styles */
@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: black !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
  }
  
  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }
  
  .btn,
  .modal,
  .dropdown,
  .loading-spinner {
    display: none !important;
  }
  
  .card {
    border: 1pt solid black;
    box-shadow: none;
  }
  
  a[href^="http"]:after {
    content: " (" attr(href) ")";
  }
}