/**
 * Material Design 3 - Thème CEM Parapente
 * Basé sur les principes Material Design 3 de Google
 */

/* ===== Import Google Fonts ===== */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&family=Roboto+Flex:wght@400;500;600;700&display=swap');

/* ===== Variables de thème Material 3 ===== */
:root {
  /* Palette primaire - Bleu Rid'Air (texte logo) */
  --md-sys-color-primary: #2c5282;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #d0e6f7;
  --md-sys-color-on-primary-container: #0d2137;
  
  /* Palette secondaire - Bleu turquoise Rid'Air (vague logo) */
  --md-sys-color-secondary: #4eb8c2;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #d4f3f6;
  --md-sys-color-on-secondary-container: #0d3d40;
  
  /* Palette tertiaire - Vert succès */
  --md-sys-color-tertiary: #38a169;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #c6f6d5;
  --md-sys-color-on-tertiary-container: #1c4532;
  
  /* Couleurs d'erreur */
  --md-sys-color-error: #c53030;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #fed7d7;
  --md-sys-color-on-error-container: #63171b;
  
  /* Surface & Background */
  --md-sys-color-surface: #FFFFFF;
  --md-sys-color-on-surface: #1a202c;
  --md-sys-color-surface-variant: #e8f4f8;
  --md-sys-color-on-surface-variant: #4a5568;
  --md-sys-color-outline: #718096;
  --md-sys-color-outline-variant: #cbd5e0;
  
  --md-sys-color-background: #f7fafc;
  --md-sys-color-on-background: #1a202c;
  
  /* Surface containers */
  --md-sys-color-surface-container-lowest: #FFFFFF;
  --md-sys-color-surface-container-low: #f7fafc;
  --md-sys-color-surface-container: #edf2f7;
  --md-sys-color-surface-container-high: #e2e8f0;
  --md-sys-color-surface-container-highest: #cbd5e0;
  
  /* Shadow & Elevation */
  --md-sys-elevation-level0: none;
  --md-sys-elevation-level1: 0px 1px 2px 0px rgba(0, 0, 0, 0.3), 0px 1px 3px 1px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-level2: 0px 1px 2px 0px rgba(0, 0, 0, 0.3), 0px 2px 6px 2px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-level3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px 0px rgba(0, 0, 0, 0.3);
  --md-sys-elevation-level4: 0px 6px 10px 4px rgba(0, 0, 0, 0.15), 0px 2px 3px 0px rgba(0, 0, 0, 0.3);
  --md-sys-elevation-level5: 0px 8px 12px 6px rgba(0, 0, 0, 0.15), 0px 4px 4px 0px rgba(0, 0, 0, 0.3);
  
  /* Typography */
  --md-sys-typescale-display-large-font: 'Roboto Flex', sans-serif;
  --md-sys-typescale-display-large-size: 57px;
  --md-sys-typescale-display-large-weight: 400;
  --md-sys-typescale-display-large-line-height: 64px;
  
  --md-sys-typescale-headline-large-font: 'Roboto Flex', sans-serif;
  --md-sys-typescale-headline-large-size: 32px;
  --md-sys-typescale-headline-large-weight: 400;
  --md-sys-typescale-headline-large-line-height: 40px;
  
  --md-sys-typescale-title-large-font: 'Roboto', sans-serif;
  --md-sys-typescale-title-large-size: 22px;
  --md-sys-typescale-title-large-weight: 400;
  --md-sys-typescale-title-large-line-height: 28px;
  
  --md-sys-typescale-body-large-font: 'Roboto', sans-serif;
  --md-sys-typescale-body-large-size: 16px;
  --md-sys-typescale-body-large-weight: 400;
  --md-sys-typescale-body-large-line-height: 24px;
  
  --md-sys-typescale-label-large-font: 'Roboto', sans-serif;
  --md-sys-typescale-label-large-size: 14px;
  --md-sys-typescale-label-large-weight: 500;
  --md-sys-typescale-label-large-line-height: 20px;
  
  /* Shape & Radius */
  --md-sys-shape-corner-none: 0px;
  --md-sys-shape-corner-extra-small: 4px;
  --md-sys-shape-corner-small: 8px;
  --md-sys-shape-corner-medium: 12px;
  --md-sys-shape-corner-large: 16px;
  --md-sys-shape-corner-extra-large: 28px;
  --md-sys-shape-corner-full: 9999px;
  
  /* Spacing */
  --md-sys-spacing-xs: 4px;
  --md-sys-spacing-sm: 8px;
  --md-sys-spacing-md: 16px;
  --md-sys-spacing-lg: 24px;
  --md-sys-spacing-xl: 32px;
  
  /* Motion */
  --md-sys-motion-duration-short1: 50ms;
  --md-sys-motion-duration-short2: 100ms;
  --md-sys-motion-duration-medium1: 250ms;
  --md-sys-motion-duration-medium2: 300ms;
  --md-sys-motion-duration-long1: 400ms;
  --md-sys-motion-duration-long2: 500ms;
  
  --md-sys-motion-easing-standard: cubic-bezier(0.2, 0.0, 0, 1.0);
  --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0.0, 0, 1.0);
  --md-sys-motion-easing-decelerate: cubic-bezier(0.0, 0.0, 0, 1.0);
  --md-sys-motion-easing-accelerate: cubic-bezier(0.3, 0.0, 1, 1);
}

/* ===== Mode sombre (optionnel) ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --md-sys-color-primary: #7eb8e5;
    --md-sys-color-on-primary: #0d2137;
    --md-sys-color-primary-container: #1e4a6d;
    --md-sys-color-on-primary-container: #d0e6f7;
    
    --md-sys-color-surface: #1a202c;
    --md-sys-color-on-surface: #e2e8f0;
    --md-sys-color-background: #1a202c;
    --md-sys-color-on-background: #e2e8f0;
  }
}

/* ===== Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--md-sys-typescale-body-large-font);
  font-size: var(--md-sys-typescale-body-large-size);
  font-weight: var(--md-sys-typescale-body-large-weight);
  line-height: var(--md-sys-typescale-body-large-line-height);
  color: var(--md-sys-color-on-background);
  background-color: var(--md-sys-color-background);
}

/* ===== Typography Classes ===== */
.display-large {
  font-family: var(--md-sys-typescale-display-large-font);
  font-size: var(--md-sys-typescale-display-large-size);
  font-weight: var(--md-sys-typescale-display-large-weight);
  line-height: var(--md-sys-typescale-display-large-line-height);
}

.headline-large {
  font-family: var(--md-sys-typescale-headline-large-font);
  font-size: var(--md-sys-typescale-headline-large-size);
  font-weight: var(--md-sys-typescale-headline-large-weight);
  line-height: var(--md-sys-typescale-headline-large-line-height);
}

.title-large {
  font-family: var(--md-sys-typescale-title-large-font);
  font-size: var(--md-sys-typescale-title-large-size);
  font-weight: var(--md-sys-typescale-title-large-weight);
  line-height: var(--md-sys-typescale-title-large-line-height);
}

.body-large {
  font-family: var(--md-sys-typescale-body-large-font);
  font-size: var(--md-sys-typescale-body-large-size);
  font-weight: var(--md-sys-typescale-body-large-weight);
  line-height: var(--md-sys-typescale-body-large-line-height);
}

.label-large {
  font-family: var(--md-sys-typescale-label-large-font);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: var(--md-sys-typescale-label-large-weight);
  line-height: var(--md-sys-typescale-label-large-line-height);
  letter-spacing: 0.1px;
}

/* ===== Material Components ===== */

/* Filled Button */
.md-filled-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-sys-spacing-sm);
  padding: 10px 24px;
  height: 40px;
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  border: none;
  border-radius: var(--md-sys-shape-corner-full);
  font-family: var(--md-sys-typescale-label-large-font);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: var(--md-sys-typescale-label-large-weight);
  cursor: pointer;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
  box-shadow: var(--md-sys-elevation-level0);
  position: relative;
  overflow: hidden;
}

.md-filled-button:hover {
  box-shadow: var(--md-sys-elevation-level1);
}

.md-filled-button:active {
  box-shadow: var(--md-sys-elevation-level0);
}

.md-filled-button::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--md-sys-color-on-primary);
  opacity: 0;
  transition: opacity var(--md-sys-motion-duration-short2);
}

.md-filled-button:hover::before {
  opacity: 0.08;
}

.md-filled-button:active::before {
  opacity: 0.12;
}

.md-filled-button:disabled {
  background-color: rgba(0, 0, 0, 0.12);
  color: rgba(0, 0, 0, 0.38);
  cursor: not-allowed;
  box-shadow: none;
}

/* Outlined Button */
.md-outlined-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-sys-spacing-sm);
  padding: 10px 24px;
  height: 40px;
  background-color: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-full);
  font-family: var(--md-sys-typescale-label-large-font);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: var(--md-sys-typescale-label-large-weight);
  cursor: pointer;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
  position: relative;
  overflow: hidden;
}

.md-outlined-button::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--md-sys-color-primary);
  opacity: 0;
  transition: opacity var(--md-sys-motion-duration-short2);
}

.md-outlined-button:hover::before {
  opacity: 0.08;
}

.md-outlined-button:active::before {
  opacity: 0.12;
}

/* Text Button */
.md-text-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-sys-spacing-sm);
  padding: 10px 12px;
  height: 40px;
  background-color: transparent;
  color: var(--md-sys-color-primary);
  border: none;
  border-radius: var(--md-sys-shape-corner-full);
  font-family: var(--md-sys-typescale-label-large-font);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: var(--md-sys-typescale-label-large-weight);
  cursor: pointer;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
  position: relative;
  overflow: hidden;
}

.md-text-button::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--md-sys-color-primary);
  opacity: 0;
  transition: opacity var(--md-sys-motion-duration-short2);
}

.md-text-button:hover::before {
  opacity: 0.08;
}

.md-text-button:active::before {
  opacity: 0.12;
}

/* FAB - Floating Action Button */
.md-fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border: none;
  border-radius: var(--md-sys-shape-corner-large);
  font-size: 24px;
  cursor: pointer;
  box-shadow: var(--md-sys-elevation-level3);
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
  position: relative;
  overflow: hidden;
}

.md-fab:hover {
  box-shadow: var(--md-sys-elevation-level4);
}

.md-fab:active {
  box-shadow: var(--md-sys-elevation-level3);
}

.md-fab-extended {
  width: auto;
  gap: var(--md-sys-spacing-md);
  padding: 0 var(--md-sys-spacing-md);
  font-family: var(--md-sys-typescale-label-large-font);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: var(--md-sys-typescale-label-large-weight);
}

/* Card - Filled */
.md-card {
  background-color: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface);
  border-radius: var(--md-sys-shape-corner-medium);
  box-shadow: var(--md-sys-elevation-level1);
  overflow: hidden;
  transition: all var(--md-sys-motion-duration-medium1) var(--md-sys-motion-easing-standard);
}

.md-card:hover {
  box-shadow: var(--md-sys-elevation-level2);
}

/* Card - Elevated */
.md-card-elevated {
  background-color: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface);
  border-radius: var(--md-sys-shape-corner-medium);
  box-shadow: var(--md-sys-elevation-level1);
  overflow: hidden;
  transition: all var(--md-sys-motion-duration-medium1) var(--md-sys-motion-easing-standard);
}

.md-card-elevated:hover {
  box-shadow: var(--md-sys-elevation-level3);
}

/* Card - Outlined */
.md-card-outlined {
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  overflow: hidden;
}

/* TextField - Filled */
.md-text-field {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  width: 100%;
}

.md-text-field input,
.md-text-field textarea,
.md-text-field select {
  width: 100%;
  padding: 20px 16px 6px 16px;
  background-color: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
  border: none;
  border-bottom: 1px solid var(--md-sys-color-on-surface-variant);
  border-radius: var(--md-sys-shape-corner-extra-small) var(--md-sys-shape-corner-extra-small) 0 0;
  font-family: var(--md-sys-typescale-body-large-font);
  font-size: var(--md-sys-typescale-body-large-size);
  outline: none;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.md-text-field label {
  position: absolute;
  left: 16px;
  top: 16px;
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--md-sys-typescale-body-large-size);
  pointer-events: none;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.md-text-field input:focus,
.md-text-field textarea:focus,
.md-text-field select:focus {
  border-bottom: 2px solid var(--md-sys-color-primary);
}

.md-text-field input:focus + label,
.md-text-field textarea:focus + label,
.md-text-field select:focus + label,
.md-text-field input:not(:placeholder-shown) + label,
.md-text-field textarea:not(:placeholder-shown) + label,
.md-text-field select:not([value=""]) + label {
  top: 4px;
  font-size: 12px;
  color: var(--md-sys-color-primary);
}

/* TextField - Outlined */
.md-text-field-outlined {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  width: 100%;
}

.md-text-field-outlined input,
.md-text-field-outlined textarea,
.md-text-field-outlined select {
  width: 100%;
  padding: 16px;
  background-color: transparent;
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-extra-small);
  font-family: var(--md-sys-typescale-body-large-font);
  font-size: var(--md-sys-typescale-body-large-size);
  outline: none;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.md-text-field-outlined label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--md-sys-color-surface);
  padding: 0 4px;
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--md-sys-typescale-body-large-size);
  pointer-events: none;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.md-text-field-outlined input:focus,
.md-text-field-outlined textarea:focus,
.md-text-field-outlined select:focus {
  border: 2px solid var(--md-sys-color-primary);
}

.md-text-field-outlined input:focus + label,
.md-text-field-outlined textarea:focus + label,
.md-text-field-outlined select:focus + label,
.md-text-field-outlined input:not(:placeholder-shown) + label,
.md-text-field-outlined textarea:not(:placeholder-shown) + label,
.md-text-field-outlined select:not([value=""]) + label {
  top: 0;
  font-size: 12px;
  color: var(--md-sys-color-primary);
}

/* Chip */
.md-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--md-sys-spacing-sm);
  padding: 6px 16px;
  height: 32px;
  background-color: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-small);
  font-family: var(--md-sys-typescale-label-large-font);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: var(--md-sys-typescale-label-large-weight);
  cursor: pointer;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.md-chip:hover {
  background-color: var(--md-sys-color-surface-container);
}

.md-chip-filled {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border: none;
}

/* Snackbar/Toast */
.md-snackbar {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  padding: 16px;
  background-color: var(--md-sys-color-on-surface);
  color: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-corner-extra-small);
  box-shadow: var(--md-sys-elevation-level3);
  z-index: 9999;
  animation: slideUp var(--md-sys-motion-duration-medium1) var(--md-sys-motion-easing-emphasized);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translate(-50%, 100%);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* Dialog/Modal */
.md-dialog-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn var(--md-sys-motion-duration-medium1) var(--md-sys-motion-easing-standard);
}

.md-dialog {
  background-color: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface);
  border-radius: var(--md-sys-shape-corner-extra-large);
  box-shadow: var(--md-sys-elevation-level3);
  min-width: 280px;
  max-width: 560px;
  max-height: 90vh;
  overflow: auto;
  animation: scaleIn var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.md-dialog-header {
  padding: var(--md-sys-spacing-lg);
}

.md-dialog-content {
  padding: 0 var(--md-sys-spacing-lg);
}

.md-dialog-actions {
  padding: var(--md-sys-spacing-lg);
  display: flex;
  gap: var(--md-sys-spacing-sm);
  justify-content: flex-end;
}

/* Navigation Rail */
.md-navigation-rail {
  width: 80px;
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--md-sys-spacing-md) 0;
  gap: var(--md-sys-spacing-sm);
  box-shadow: var(--md-sys-elevation-level0);
  border-right: 1px solid var(--md-sys-color-outline-variant);
}

.md-navigation-rail-item {
  width: 56px;
  height: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border-radius: var(--md-sys-shape-corner-full);
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  font-size: 12px;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
  position: relative;
}

.md-navigation-rail-item:hover {
  background-color: var(--md-sys-color-surface-container-highest);
}

.md-navigation-rail-item.active {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

/* Navigation Drawer */
.md-navigation-drawer {
  width: 360px;
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  display: flex;
  flex-direction: column;
  padding: var(--md-sys-spacing-md);
  box-shadow: var(--md-sys-elevation-level0);
  border-right: 1px solid var(--md-sys-color-outline-variant);
}

.md-navigation-drawer-item {
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-md);
  padding: 16px var(--md-sys-spacing-md);
  border-radius: var(--md-sys-shape-corner-full);
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.md-navigation-drawer-item:hover {
  background-color: var(--md-sys-color-surface-container-highest);
}

.md-navigation-drawer-item.active {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

/* List Item */
.md-list-item {
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-md);
  padding: var(--md-sys-spacing-md);
  border-radius: var(--md-sys-shape-corner-small);
  transition: background-color var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.md-list-item:hover {
  background-color: var(--md-sys-color-surface-container-highest);
  cursor: pointer;
}

/* Badge */
.md-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  background-color: var(--md-sys-color-error);
  color: var(--md-sys-color-on-error);
  border-radius: var(--md-sys-shape-corner-full);
  font-size: 11px;
  font-weight: 500;
}

/* Progress Indicator - Linear */
.md-linear-progress {
  width: 100%;
  height: 4px;
  background-color: var(--md-sys-color-surface-container-highest);
  border-radius: var(--md-sys-shape-corner-full);
  overflow: hidden;
}

.md-linear-progress-bar {
  height: 100%;
  background-color: var(--md-sys-color-primary);
  border-radius: var(--md-sys-shape-corner-full);
  transition: width var(--md-sys-motion-duration-long1) var(--md-sys-motion-easing-standard);
}

/* Divider */
.md-divider {
  height: 1px;
  background-color: var(--md-sys-color-outline-variant);
  border: none;
  margin: var(--md-sys-spacing-md) 0;
}

/* Utility Classes */
.elevation-0 { box-shadow: var(--md-sys-elevation-level0); }
.elevation-1 { box-shadow: var(--md-sys-elevation-level1); }
.elevation-2 { box-shadow: var(--md-sys-elevation-level2); }
.elevation-3 { box-shadow: var(--md-sys-elevation-level3); }
.elevation-4 { box-shadow: var(--md-sys-elevation-level4); }
.elevation-5 { box-shadow: var(--md-sys-elevation-level5); }

.surface { background-color: var(--md-sys-color-surface); }
.surface-variant { background-color: var(--md-sys-color-surface-variant); }
.primary { color: var(--md-sys-color-primary); }
.secondary { color: var(--md-sys-color-secondary); }
.error { color: var(--md-sys-color-error); }

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

.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-sm { gap: var(--md-sys-spacing-sm); }
.gap-md { gap: var(--md-sys-spacing-md); }
.gap-lg { gap: var(--md-sys-spacing-lg); }

.p-sm { padding: var(--md-sys-spacing-sm); }
.p-md { padding: var(--md-sys-spacing-md); }
.p-lg { padding: var(--md-sys-spacing-lg); }
.p-xl { padding: var(--md-sys-spacing-xl); }

.m-sm { margin: var(--md-sys-spacing-sm); }
.m-md { margin: var(--md-sys-spacing-md); }
.m-lg { margin: var(--md-sys-spacing-lg); }
.m-xl { margin: var(--md-sys-spacing-xl); }

/* ===== Safari Compatibility Fixes ===== */
/* Fix for text field positioning in Safari */
@supports (-webkit-touch-callout: none) {
  .md-text-field,
  .md-text-field-outlined {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
  }
  
  .md-text-field input,
  .md-text-field textarea,
  .md-text-field select,
  .md-text-field-outlined input,
  .md-text-field-outlined textarea,
  .md-text-field-outlined select {
    -webkit-appearance: none;
    appearance: none;
    box-sizing: border-box;
  }
  
  .md-text-field label,
  .md-text-field-outlined label {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
  }
}

/* General Safari/Webkit fixes */
input, textarea, select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  box-sizing: border-box;
}

/* Ensure proper stacking context */
.md-text-field,
.md-text-field-outlined {
  isolation: isolate;
}

.md-text-field label,
.md-text-field-outlined label {
  z-index: 1;
}

.md-text-field input,
.md-text-field textarea,
.md-text-field select,
.md-text-field-outlined input,
.md-text-field-outlined textarea,
.md-text-field-outlined select {
  z-index: 0;
}