/* ============================================
   MATERIAL DESIGN 3.0 SYSTEM
   Elevated Surfaces, Rich Shadows, Beautiful Typography
   ============================================ */

/* Fonts loaded from /static/css/fonts.css */

/* CSS Custom Properties */
:root {
  /* Material You Color System - Light */
  --md-primary: #1a73e8;
  --md-primary-container: #d3e3fd;
  --md-on-primary: #ffffff;
  --md-on-primary-container: #041e49;
  
  --md-secondary: #5f6368;
  --md-secondary-container: #e8eaed;
  --md-on-secondary: #ffffff;
  --md-on-secondary-container: #1f1f1f;
  
  --md-tertiary: #1e8e3e;
  --md-tertiary-container: #ceead6;
  --md-on-tertiary: #ffffff;
  --md-on-tertiary-container: #0d652d;
  
  --md-error: #d93025;
  --md-error-container: #fce8e6;
  --md-on-error: #ffffff;
  --md-on-error-container: #5f2120;
  
  --md-warning: #f9ab00;
  --md-warning-container: #fef7e0;
  
  --md-surface: #ffffff;
  --md-surface-dim: #ddd9d9;
  --md-surface-bright: #fdf8f8;
  --md-surface-container-lowest: #ffffff;
  --md-surface-container-low: #f7f2f2;
  --md-surface-container: #f1ecec;
  --md-surface-container-high: #ebe6e6;
  --md-surface-container-highest: #e5e1e1;
  
  --md-on-surface: #1f1f1f;
  --md-on-surface-variant: #444746;
  --md-outline: #747775;
  --md-outline-variant: #c4c7c5;
  
  /* Background */
  --md-background: #fefbff;
  --md-on-background: #1c1b1f;
  
  /* Material Elevation Shadows */
  --md-elevation-0: none;
  --md-elevation-1: 
    0 1px 2px rgba(0, 0, 0, 0.3),
    0 1px 3px 1px rgba(0, 0, 0, 0.15);
  --md-elevation-2: 
    0 1px 2px rgba(0, 0, 0, 0.3),
    0 2px 6px 2px rgba(0, 0, 0, 0.15);
  --md-elevation-3: 
    0 1px 3px rgba(0, 0, 0, 0.3),
    0 4px 8px 3px rgba(0, 0, 0, 0.15);
  --md-elevation-4: 
    0 2px 3px rgba(0, 0, 0, 0.3),
    0 6px 10px 4px rgba(0, 0, 0, 0.15);
  --md-elevation-5: 
    0 4px 4px rgba(0, 0, 0, 0.3),
    0 8px 12px 6px rgba(0, 0, 0, 0.15);
  
  /* Tonal Elevation Overlays */
  --md-surface-tint: var(--md-primary);
  --md-elevation-tint-1: rgba(26, 115, 232, 0.05);
  --md-elevation-tint-2: rgba(26, 115, 232, 0.08);
  --md-elevation-tint-3: rgba(26, 115, 232, 0.11);
  --md-elevation-tint-4: rgba(26, 115, 232, 0.12);
  --md-elevation-tint-5: rgba(26, 115, 232, 0.14);
  
  /* Typography Scale */
  --md-font-brand: 'Google Sans', 'Product Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --md-font-plain: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
  --md-font-mono: 'Roboto Mono', 'SF Mono', monospace;
  
  /* Display */
  --md-display-large: 700 3.5625rem/4rem var(--md-font-brand);
  --md-display-medium: 700 2.8125rem/3.25rem var(--md-font-brand);
  --md-display-small: 700 2.25rem/2.75rem var(--md-font-brand);
  
  /* Headline */
  --md-headline-large: 500 2rem/2.5rem var(--md-font-brand);
  --md-headline-medium: 500 1.75rem/2.25rem var(--md-font-brand);
  --md-headline-small: 500 1.5rem/2rem var(--md-font-brand);
  
  /* Title */
  --md-title-large: 500 1.375rem/1.75rem var(--md-font-brand);
  --md-title-medium: 500 1rem/1.5rem var(--md-font-plain);
  --md-title-small: 500 0.875rem/1.25rem var(--md-font-plain);
  
  /* Body */
  --md-body-large: 400 1rem/1.5rem var(--md-font-plain);
  --md-body-medium: 400 0.875rem/1.25rem var(--md-font-plain);
  --md-body-small: 400 0.75rem/1rem var(--md-font-plain);
  
  /* Label */
  --md-label-large: 500 0.875rem/1.25rem var(--md-font-plain);
  --md-label-medium: 500 0.75rem/1rem var(--md-font-plain);
  --md-label-small: 500 0.6875rem/1rem var(--md-font-plain);
  
  /* Shape Scale */
  --md-shape-none: 0;
  --md-shape-extra-small: 4px;
  --md-shape-small: 8px;
  --md-shape-medium: 12px;
  --md-shape-large: 16px;
  --md-shape-extra-large: 28px;
  --md-shape-full: 9999px;
  
  /* Motion */
  --md-motion-duration-short1: 50ms;
  --md-motion-duration-short2: 100ms;
  --md-motion-duration-short3: 150ms;
  --md-motion-duration-short4: 200ms;
  --md-motion-duration-medium1: 250ms;
  --md-motion-duration-medium2: 300ms;
  --md-motion-duration-medium3: 350ms;
  --md-motion-duration-medium4: 400ms;
  --md-motion-duration-long1: 450ms;
  --md-motion-duration-long2: 500ms;
  
  --md-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-motion-easing-standard-decelerate: cubic-bezier(0, 0, 0, 1);
  --md-motion-easing-standard-accelerate: cubic-bezier(0.3, 0, 1, 1);
  --md-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-motion-easing-emphasized-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1);
  --md-motion-easing-emphasized-accelerate: cubic-bezier(0.3, 0, 0.8, 0.15);
  
  /* State Layer Opacity */
  --md-state-hover: 0.08;
  --md-state-focus: 0.12;
  --md-state-pressed: 0.12;
  --md-state-dragged: 0.16;
  
  /* Spacing */
  --md-spacing-1: 4px;
  --md-spacing-2: 8px;
  --md-spacing-3: 12px;
  --md-spacing-4: 16px;
  --md-spacing-5: 20px;
  --md-spacing-6: 24px;
  --md-spacing-8: 32px;
  --md-spacing-10: 40px;
  --md-spacing-12: 48px;
  --md-spacing-16: 64px;
  
  /* Layout */
  --md-nav-height: 64px;
  --md-sidebar-width: 280px;
  --md-container-max: 1400px;
}

/* Dark Theme */
@media (prefers-color-scheme: dark) {
  :root {
    --md-primary: #a8c7fa;
    --md-primary-container: #004a77;
    --md-on-primary: #003258;
    --md-on-primary-container: #d3e3fd;
    
    --md-secondary: #c4c7c5;
    --md-secondary-container: #3c4043;
    --md-on-secondary: #2c2f31;
    --md-on-secondary-container: #e0e3e0;
    
    --md-tertiary: #81c995;
    --md-tertiary-container: #0d652d;
    --md-on-tertiary: #003918;
    --md-on-tertiary-container: #ceead6;
    
    --md-error: #f28b82;
    --md-error-container: #8c1d18;
    --md-on-error: #601410;
    --md-on-error-container: #fce8e6;
    
    --md-surface: #1f1f1f;
    --md-surface-dim: #141414;
    --md-surface-bright: #3b3b3b;
    --md-surface-container-lowest: #0e0e0e;
    --md-surface-container-low: #1c1c1c;
    --md-surface-container: #242424;
    --md-surface-container-high: #2d2d2d;
    --md-surface-container-highest: #383838;
    
    --md-on-surface: #e3e3e3;
    --md-on-surface-variant: #c4c7c5;
    --md-outline: #8e918f;
    --md-outline-variant: #444746;
    
    --md-background: #1c1b1f;
    --md-on-background: #e6e1e5;
    
    --md-elevation-1: 
      0 1px 3px 1px rgba(0, 0, 0, 0.5),
      0 1px 2px rgba(0, 0, 0, 0.7);
    --md-elevation-2: 
      0 2px 6px 2px rgba(0, 0, 0, 0.5),
      0 1px 2px rgba(0, 0, 0, 0.7);
    --md-elevation-3: 
      0 4px 8px 3px rgba(0, 0, 0, 0.5),
      0 1px 3px rgba(0, 0, 0, 0.7);
    --md-elevation-4: 
      0 6px 10px 4px rgba(0, 0, 0, 0.5),
      0 2px 3px rgba(0, 0, 0, 0.7);
    --md-elevation-5: 
      0 8px 12px 6px rgba(0, 0, 0, 0.5),
      0 4px 4px rgba(0, 0, 0, 0.7);
    
    --md-elevation-tint-1: rgba(168, 199, 250, 0.05);
    --md-elevation-tint-2: rgba(168, 199, 250, 0.08);
    --md-elevation-tint-3: rgba(168, 199, 250, 0.11);
    --md-elevation-tint-4: rgba(168, 199, 250, 0.12);
    --md-elevation-tint-5: rgba(168, 199, 250, 0.14);
  }
}

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

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

body {
  font: var(--md-body-large);
  color: var(--md-on-surface);
  background: var(--md-background);
  min-height: 100vh;
  overflow-x: hidden;
  letter-spacing: 0.01em;
}

/* Smooth animated background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse 100% 80% at 10% -20%, rgba(26, 115, 232, 0.06), transparent 50%),
    radial-gradient(ellipse 80% 60% at 90% 100%, rgba(30, 142, 62, 0.04), transparent 50%);
  pointer-events: none;
  z-index: -1;
}

a {
  color: var(--md-primary);
  text-decoration: none;
  transition: color var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

::selection {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(32px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-32px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.4;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes expandWidth {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* Animation Classes */
.animate-fade-in { 
  animation: fadeIn var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized-decelerate) forwards;
}
.animate-fade-in-up { 
  animation: fadeInUp var(--md-motion-duration-medium3) var(--md-motion-easing-emphasized-decelerate) forwards;
}
.animate-fade-in-down { 
  animation: fadeInDown var(--md-motion-duration-medium3) var(--md-motion-easing-emphasized-decelerate) forwards;
}
.animate-scale-in { 
  animation: scaleIn var(--md-motion-duration-medium3) var(--md-motion-easing-emphasized-decelerate) forwards;
}
.animate-slide-right { 
  animation: slideInRight var(--md-motion-duration-medium3) var(--md-motion-easing-emphasized-decelerate) forwards;
}
.animate-slide-left { 
  animation: slideInLeft var(--md-motion-duration-medium3) var(--md-motion-easing-emphasized-decelerate) forwards;
}
.animate-float { 
  animation: float 3s var(--md-motion-easing-standard) infinite;
}
.animate-pulse { 
  animation: pulse 2s var(--md-motion-easing-standard) infinite;
}
.animate-spin { 
  animation: spin 1s linear infinite;
}

/* Stagger Delays */
.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }
.stagger-6 { animation-delay: 300ms; }

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

/* ============================================
   LAYOUT
   ============================================ */
.container {
  width: 100%;
  max-width: var(--md-container-max);
  margin: 0 auto;
  padding: 0 var(--md-spacing-6);
}

.main-content {
  flex: 1;
  padding: var(--md-spacing-8) 0 var(--md-spacing-12);
}

/* ============================================
   NAVIGATION - Material App Bar
   ============================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--md-nav-height);
  background: var(--md-surface);
  box-shadow: var(--md-elevation-2);
  transition: 
    box-shadow var(--md-motion-duration-medium1) var(--md-motion-easing-standard),
    background var(--md-motion-duration-medium1) var(--md-motion-easing-standard);
}

.navbar.elevated {
  box-shadow: var(--md-elevation-3);
  background: linear-gradient(var(--md-elevation-tint-2), var(--md-elevation-tint-2)), var(--md-surface);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--md-spacing-4);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-3);
  font: var(--md-title-large);
  color: var(--md-on-surface);
  text-decoration: none;
  transition: transform var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

.navbar-brand:hover {
  text-decoration: none;
  transform: scale(1.02);
}

.navbar-brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--theme-primary-light, #1e40af), var(--theme-accent, #3b82f6));
  border-radius: var(--md-shape-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-on-primary);
  font: var(--md-title-medium);
  box-shadow: var(--md-elevation-1);
  transition: box-shadow var(--md-motion-duration-short3) var(--md-motion-easing-standard);
  overflow: hidden;
}

.navbar-brand-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.navbar-brand:hover .navbar-brand-icon {
  box-shadow: var(--md-elevation-2);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-1);
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
  padding: var(--md-spacing-2) var(--md-spacing-4);
  border-radius: var(--md-shape-full);
  font: var(--md-label-large);
  color: var(--md-on-surface-variant);
  text-decoration: none;
  transition: all var(--md-motion-duration-short3) var(--md-motion-easing-standard);
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--md-motion-duration-short3) var(--md-motion-easing-standard);
  border-radius: inherit;
}

.nav-link:hover {
  color: var(--md-on-surface);
  text-decoration: none;
}

.nav-link:hover::before {
  opacity: var(--md-state-hover);
}

.nav-link.active {
  color: var(--md-on-primary-container);
  background: var(--md-primary-container);
}

.nav-link.active::before {
  display: none;
}

.nav-link-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* User Avatar */
.navbar-user {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-3);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--md-shape-full);
  background: linear-gradient(135deg, var(--theme-primary-light, var(--md-primary)), var(--theme-accent, #3b82f6));
  color: var(--md-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font: var(--md-title-small);
  font-weight: 600;
  cursor: pointer;
  border: none;
  outline: none;
  position: relative;
  z-index: 10;
  border: none;
  box-shadow: var(--md-elevation-1);
  transition: 
    box-shadow var(--md-motion-duration-short3) var(--md-motion-easing-standard),
    transform var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

.user-avatar:hover {
  box-shadow: var(--md-elevation-2);
  transform: scale(1.05);
}

.user-avatar:focus {
  outline: 2px solid var(--theme-accent-light, #60a5fa);
  outline-offset: 2px;
}

.user-avatar:active {
  transform: scale(0.98);
}

.user-avatar:active {
  transform: scale(0.98);
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  padding: var(--md-spacing-2);
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--md-shape-full);
  transition: background var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

.mobile-menu-btn:hover {
  background: var(--md-surface-container-high);
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--md-on-surface);
  margin: 6px 0;
  border-radius: 2px;
  transition: all var(--md-motion-duration-medium1) var(--md-motion-easing-standard);
}

@media (max-width: 900px) {
  .mobile-menu-btn {
    display: block;
  }
  
  .navbar-nav {
    position: fixed;
    top: var(--md-nav-height);
    left: 0;
    right: 0;
    background: var(--md-surface);
    flex-direction: column;
    padding: var(--md-spacing-4);
    gap: var(--md-spacing-2);
    box-shadow: var(--md-elevation-3);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized);
  }
  
  .navbar-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-link {
    width: 100%;
    padding: var(--md-spacing-4);
    border-radius: var(--md-shape-large);
    justify-content: flex-start;
  }
}

/* ============================================
   BUTTONS - Material Filled/Outlined/Text
   ============================================ */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-spacing-2);
  height: 40px;
  padding: 0 var(--md-spacing-6);
  font: var(--md-label-large);
  letter-spacing: 0.02em;
  text-decoration: none;
  border: none;
  border-radius: var(--md-shape-full);
  cursor: pointer;
  overflow: hidden;
  transition: all var(--md-motion-duration-short3) var(--md-motion-easing-standard);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Ripple Effect */
.btn::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  background-image: radial-gradient(circle, currentColor 10%, transparent 10%);
  background-repeat: no-repeat;
  background-position: 50%;
  transform: scale(10);
  opacity: 0;
  transition: transform 0.5s, opacity 0.5s;
}

.btn:active::after {
  transform: scale(0);
  opacity: var(--md-state-pressed);
  transition: 0s;
}

/* Filled Button */
.btn-primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--md-elevation-1);
}

.btn-primary:hover {
  box-shadow: var(--md-elevation-2);
  background: linear-gradient(rgba(255,255,255,0.08), rgba(255,255,255,0.08)), var(--md-primary);
  text-decoration: none;
  color: var(--md-on-primary);
}

.btn-primary:active {
  box-shadow: var(--md-elevation-1);
}

/* Filled Tonal Button */
.btn-secondary {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.btn-secondary:hover {
  box-shadow: var(--md-elevation-1);
  text-decoration: none;
  color: var(--md-on-secondary-container);
}

/* Outlined Button */
.btn-outline {
  background: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline);
}

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

/* Text Button */
.btn-ghost {
  background: transparent;
  color: var(--md-primary);
  padding: 0 var(--md-spacing-3);
}

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

/* Danger Button */
.btn-danger {
  background: var(--md-error);
  color: var(--md-on-error);
}

.btn-danger:hover {
  box-shadow: var(--md-elevation-2);
  text-decoration: none;
  color: var(--md-on-error);
}

/* Success Button */
.btn-success {
  background: var(--md-tertiary);
  color: var(--md-on-tertiary);
}

.btn-success:hover {
  box-shadow: var(--md-elevation-2);
  text-decoration: none;
  color: var(--md-on-tertiary);
}

/* Button Sizes */
.btn-sm {
  height: 32px;
  padding: 0 var(--md-spacing-4);
  font: var(--md-label-medium);
}

.btn-lg {
  height: 48px;
  padding: 0 var(--md-spacing-8);
  font: var(--md-label-large);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--md-shape-full);
}

.btn-icon.btn-sm {
  width: 32px;
  height: 32px;
}

/* FAB - Floating Action Button */
.fab {
  position: fixed;
  bottom: var(--md-spacing-6);
  right: var(--md-spacing-6);
  width: 56px;
  height: 56px;
  border-radius: var(--md-shape-large);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  box-shadow: var(--md-elevation-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  cursor: pointer;
  border: none;
  transition: all var(--md-motion-duration-medium1) var(--md-motion-easing-emphasized);
  z-index: 50;
}

.fab:hover {
  box-shadow: var(--md-elevation-4);
}

/* ============================================
   CARDS - Material Elevated/Filled/Outlined
   ============================================ */
.card {
  background: var(--md-surface);
  border-radius: var(--md-shape-large);
  overflow: hidden;
  transition: 
    box-shadow var(--md-motion-duration-medium1) var(--md-motion-easing-standard),
    transform var(--md-motion-duration-medium1) var(--md-motion-easing-standard);
}

/* Elevated Card */
.card-elevated {
  box-shadow: var(--md-elevation-1);
  background: linear-gradient(var(--md-elevation-tint-1), var(--md-elevation-tint-1)), var(--md-surface);
}

.card-elevated:hover {
  box-shadow: var(--md-elevation-2);
  background: linear-gradient(var(--md-elevation-tint-2), var(--md-elevation-tint-2)), var(--md-surface);
}

/* Filled Card */
.card-filled {
  background: var(--md-surface-container-highest);
}

/* Outlined Card */
.card-outlined {
  border: 1px solid var(--md-outline-variant);
}

/* Interactive Card */
.card-interactive {
  cursor: pointer;
  box-shadow: var(--md-elevation-1);
  background: linear-gradient(var(--md-elevation-tint-1), var(--md-elevation-tint-1)), var(--md-surface);
}

.card-interactive:hover {
  box-shadow: var(--md-elevation-3);
  transform: translateY(-2px);
  background: linear-gradient(var(--md-elevation-tint-2), var(--md-elevation-tint-2)), var(--md-surface);
}

.card-interactive:active {
  transform: translateY(0);
  box-shadow: var(--md-elevation-1);
}

.card-header {
  padding: var(--md-spacing-5) var(--md-spacing-6);
  border-bottom: 1px solid var(--md-outline-variant);
}

.card-body {
  padding: var(--md-spacing-6);
}

.card-footer {
  padding: var(--md-spacing-4) var(--md-spacing-6);
  border-top: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container);
}

.card-title {
  font: var(--md-title-large);
  color: var(--md-on-surface);
  margin-bottom: var(--md-spacing-1);
}

.card-subtitle {
  font: var(--md-body-medium);
  color: var(--md-on-surface-variant);
}

/* Feature Card with Icon */
.feature-card {
  padding: var(--md-spacing-6);
  text-align: center;
}

.feature-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--md-spacing-4);
  border-radius: var(--md-shape-large);
  background: var(--md-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--md-on-primary-container);
  box-shadow: var(--md-elevation-1);
  transition: 
    transform var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized),
    box-shadow var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized);
}

.card-interactive:hover .feature-card-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--md-elevation-2);
}

/* Stat Card */
.stat-card {
  padding: var(--md-spacing-5);
  box-shadow: var(--md-elevation-1);
  background: linear-gradient(var(--md-elevation-tint-1), var(--md-elevation-tint-1)), var(--md-surface);
}

.stat-value {
  font: var(--md-display-small);
  color: var(--md-primary);
  line-height: 1.1;
}

.stat-label {
  font: var(--md-body-medium);
  color: var(--md-on-surface-variant);
  margin-top: var(--md-spacing-1);
}

/* ============================================
   FORMS - Material Text Fields
   ============================================ */
.form-group {
  margin-bottom: var(--md-spacing-5);
}

.form-label {
  display: block;
  font: var(--md-label-large);
  color: var(--md-on-surface-variant);
  margin-bottom: var(--md-spacing-2);
}

.form-label.required::after {
  content: ' *';
  color: var(--md-error);
}

.form-control {
  width: 100%;
  height: 56px;
  padding: var(--md-spacing-4) var(--md-spacing-4);
  font: var(--md-body-large);
  color: var(--md-on-surface);
  background: var(--md-surface-container-highest);
  border: none;
  border-radius: var(--md-shape-extra-small) var(--md-shape-extra-small) 0 0;
  border-bottom: 1px solid var(--md-on-surface-variant);
  transition: all var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

.form-control:hover {
  background: var(--md-surface-container-high);
}

.form-control:focus {
  outline: none;
  border-bottom: 2px solid var(--md-primary);
  background: var(--md-surface-container-highest);
}

.form-control::placeholder {
  color: var(--md-on-surface-variant);
}

/* Outlined Text Field Variant */
.form-control-outlined {
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-extra-small);
  background: transparent;
}

.form-control-outlined:hover {
  border-color: var(--md-on-surface);
  background: transparent;
}

.form-control-outlined:focus {
  border: 2px solid var(--md-primary);
  padding: calc(var(--md-spacing-4) - 1px);
  background: transparent;
}

textarea.form-control {
  height: auto;
  min-height: 120px;
  resize: vertical;
  border-radius: var(--md-shape-extra-small);
}

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235f6368' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--md-spacing-4) center;
  padding-right: var(--md-spacing-10);
}

.form-hint {
  font: var(--md-body-small);
  color: var(--md-on-surface-variant);
  margin-top: var(--md-spacing-1);
  padding-left: var(--md-spacing-4);
}

.form-error {
  font: var(--md-body-small);
  color: var(--md-error);
  margin-top: var(--md-spacing-1);
  padding-left: var(--md-spacing-4);
}

/* Input Group */
.input-group {
  display: flex;
  gap: 0;
}

.input-group .form-control {
  border-radius: var(--md-shape-extra-small) 0 0 var(--md-shape-extra-small);
}

.input-group .btn {
  border-radius: 0 var(--md-shape-full) var(--md-shape-full) 0;
  height: 56px;
}

/* File Upload */
.file-upload {
  position: relative;
  border: 2px dashed var(--md-outline-variant);
  border-radius: var(--md-shape-large);
  padding: var(--md-spacing-10) var(--md-spacing-6);
  text-align: center;
  cursor: pointer;
  transition: all var(--md-motion-duration-medium1) var(--md-motion-easing-standard);
  background: var(--md-surface-container);
}

.file-upload:hover,
.file-upload.dragover {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
}

.file-upload input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.file-upload-icon {
  font-size: 48px;
  color: var(--md-on-surface-variant);
  margin-bottom: var(--md-spacing-4);
  transition: 
    transform var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized),
    color var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.file-upload:hover .file-upload-icon {
  transform: translateY(-8px);
  color: var(--md-primary);
}

.file-upload-text {
  font: var(--md-body-large);
  color: var(--md-on-surface);
  margin-bottom: var(--md-spacing-1);
}

.file-upload-hint {
  font: var(--md-body-small);
  color: var(--md-on-surface-variant);
}

/* ============================================
   ALERTS - Material Snackbar/Banner Style
   ============================================ */
.alert {
  padding: var(--md-spacing-4) var(--md-spacing-5);
  border-radius: var(--md-shape-medium);
  margin-bottom: var(--md-spacing-4);
  display: flex;
  align-items: flex-start;
  gap: var(--md-spacing-3);
  animation: fadeInDown var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized-decelerate);
  box-shadow: var(--md-elevation-1);
}

.alert-icon {
  font-size: 20px;
  line-height: 1;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font: var(--md-title-small);
  margin-bottom: var(--md-spacing-1);
}

.alert-message {
  font: var(--md-body-medium);
}

.alert-success {
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
}

.alert-error {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
}

.alert-warning {
  background: var(--md-warning-container);
  color: var(--md-on-surface);
}

.alert-info {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* Toast - Fixed position notifications */
.toast-container {
  position: fixed;
  top: 80px;
  right: var(--md-spacing-6);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--md-spacing-3);
  max-width: 400px;
  pointer-events: none;
}

.toast {
  background: var(--md-surface);
  color: var(--md-on-surface);
  border-radius: var(--md-shape-medium);
  box-shadow: var(--md-elevation-4);
  padding: var(--md-spacing-4) var(--md-spacing-5);
  min-width: 320px;
  display: flex;
  align-items: center;
  gap: var(--md-spacing-3);
  animation: toastSlideIn 0.4s var(--md-motion-easing-emphasized-decelerate);
  pointer-events: auto;
  border-left: 4px solid var(--md-outline);
}

.toast-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toast-message {
  flex: 1;
  font: var(--md-body-medium);
}

.toast-close {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  color: var(--md-on-surface-variant);
  transition: background 0.2s;
}

.toast-close:hover {
  background: var(--md-surface-container-high);
}

.toast-success {
  border-left-color: var(--md-tertiary);
  background: linear-gradient(135deg, var(--md-surface) 0%, var(--md-tertiary-container) 100%);
}

.toast-success .toast-icon {
  color: var(--md-tertiary);
}

.toast-error {
  border-left-color: var(--md-error);
  background: linear-gradient(135deg, var(--md-surface) 0%, var(--md-error-container) 100%);
}

.toast-error .toast-icon {
  color: var(--md-error);
}

.toast-warning {
  border-left-color: var(--md-warning);
  background: linear-gradient(135deg, var(--md-surface) 0%, var(--md-warning-container) 100%);
}

.toast-warning .toast-icon {
  color: #b36b00;
}

.toast-info {
  border-left-color: var(--md-primary);
  background: linear-gradient(135deg, var(--md-surface) 0%, var(--md-primary-container) 100%);
}

.toast-info .toast-icon {
  color: var(--md-primary);
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast.toast-exit {
  animation: toastSlideOut 0.3s var(--md-motion-easing-emphasized-accelerate) forwards;
}

@keyframes toastSlideOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* ============================================
   TABLES
   ============================================ */
.table-container {
  overflow-x: auto;
  border-radius: var(--md-shape-medium);
  box-shadow: var(--md-elevation-1);
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--md-surface);
}

.table th,
.table td {
  padding: var(--md-spacing-4);
  text-align: left;
  border-bottom: 1px solid var(--md-outline-variant);
}

.table th {
  font: var(--md-title-small);
  color: var(--md-on-surface-variant);
  background: var(--md-surface-container);
}

.table tbody tr {
  transition: background var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

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

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

/* ============================================
   BADGES & CHIPS
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 var(--md-spacing-2);
  font: var(--md-label-small);
  border-radius: var(--md-shape-extra-small);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
}

.badge-primary {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.badge-success {
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
}

.badge-danger {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
}

.badge-warning {
  background: var(--md-warning-container);
  color: var(--md-on-surface);
}

/* Chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--md-spacing-2);
  height: 32px;
  padding: 0 var(--md-spacing-4);
  font: var(--md-label-large);
  border-radius: var(--md-shape-small);
  border: 1px solid var(--md-outline);
  background: transparent;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  transition: all var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

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

.chip.selected {
  background: var(--md-secondary-container);
  border-color: transparent;
  color: var(--md-on-secondary-container);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  padding: var(--md-spacing-16) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -25%;
  width: 150%;
  height: 200%;
  background: radial-gradient(ellipse at center, var(--md-primary-container), transparent 60%);
  opacity: 0.3;
  animation: float 10s var(--md-motion-easing-standard) infinite;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--md-spacing-2);
  padding: var(--md-spacing-2) var(--md-spacing-4);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-radius: var(--md-shape-full);
  font: var(--md-label-large);
  margin-bottom: var(--md-spacing-6);
  animation: fadeInDown var(--md-motion-duration-medium3) var(--md-motion-easing-emphasized-decelerate);
  box-shadow: var(--md-elevation-1);
}

.hero-title {
  font: var(--md-display-medium);
  color: var(--md-on-surface);
  margin-bottom: var(--md-spacing-6);
  animation: fadeInUp var(--md-motion-duration-medium3) var(--md-motion-easing-emphasized-decelerate);
  animation-delay: 100ms;
  animation-fill-mode: both;
}

.hero-title span {
  color: var(--md-primary);
}

.hero-description {
  font: var(--md-body-large);
  color: var(--md-on-surface-variant);
  max-width: 600px;
  margin: 0 auto var(--md-spacing-8);
  animation: fadeInUp var(--md-motion-duration-medium3) var(--md-motion-easing-emphasized-decelerate);
  animation-delay: 200ms;
  animation-fill-mode: both;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--md-spacing-4);
  flex-wrap: wrap;
  animation: fadeInUp var(--md-motion-duration-medium3) var(--md-motion-easing-emphasized-decelerate);
  animation-delay: 300ms;
  animation-fill-mode: both;
}

/* ============================================
   EMAIL LAYOUT - Gmail Style
   ============================================ */
.email-layout {
  display: grid;
  grid-template-columns: var(--md-sidebar-width) 1fr;
  gap: 0;
  min-height: calc(100vh - var(--md-nav-height) - 100px);
  background: var(--md-surface);
  border-radius: var(--md-shape-large);
  box-shadow: var(--md-elevation-2);
  overflow: hidden;
}

.email-sidebar {
  background: var(--md-surface-container);
  padding: var(--md-spacing-4);
  display: flex;
  flex-direction: column;
  gap: var(--md-spacing-2);
  overflow-y: auto;
}

.email-compose-btn {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-3);
  height: 56px;
  padding: 0 var(--md-spacing-6);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border: none;
  border-radius: var(--md-shape-large);
  font: var(--md-label-large);
  cursor: pointer;
  box-shadow: var(--md-elevation-2);
  transition: all var(--md-motion-duration-medium1) var(--md-motion-easing-emphasized);
  margin-bottom: var(--md-spacing-4);
  text-decoration: none;
}

.email-compose-btn:hover {
  box-shadow: var(--md-elevation-3);
  text-decoration: none;
  color: var(--md-on-primary-container);
}

.email-folder {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-3);
  padding: var(--md-spacing-3) var(--md-spacing-4);
  border-radius: var(--md-shape-full);
  font: var(--md-label-large);
  color: var(--md-on-surface-variant);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

.email-folder:hover {
  background: var(--md-surface-container-high);
  text-decoration: none;
}

.email-folder.active {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.email-folder-icon {
  width: 20px;
  height: 20px;
}

.email-folder-count {
  margin-left: auto;
  font: var(--md-label-small);
}

.email-main {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-left: 1px solid var(--md-outline-variant);
}

.email-toolbar {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-2);
  padding: var(--md-spacing-3) var(--md-spacing-4);
  border-bottom: 1px solid var(--md-outline-variant);
  background: var(--md-surface);
}

.email-toolbar-btn {
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  border-radius: var(--md-shape-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-on-surface-variant);
  transition: all var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

.email-toolbar-btn:hover {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
}

.email-search {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--md-surface-container-high);
  border-radius: var(--md-shape-full);
  padding: var(--md-spacing-2) var(--md-spacing-4);
  max-width: 600px;
  margin: 0 auto;
  height: 48px;
  box-shadow: var(--md-elevation-1);
}

.email-search input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font: var(--md-body-medium);
  color: var(--md-on-surface);
}

.email-list {
  flex: 1;
  overflow-y: auto;
}

.email-item {
  display: grid;
  grid-template-columns: auto 200px 1fr auto;
  align-items: center;
  gap: var(--md-spacing-4);
  padding: var(--md-spacing-3) var(--md-spacing-4);
  border-bottom: 1px solid var(--md-outline-variant);
  cursor: pointer;
  transition: all var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

.email-item:hover {
  background: var(--md-surface-container);
}

.email-item.unread {
  background: var(--md-primary-container);
}

.email-item.unread:hover {
  background: linear-gradient(var(--md-elevation-tint-2), var(--md-elevation-tint-2)), var(--md-primary-container);
}

.email-item.unread .email-sender,
.email-item.unread .email-subject {
  font-weight: 700;
}

.email-star {
  width: 24px;
  height: 24px;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  transition: color var(--md-motion-duration-short3);
}

.email-star:hover,
.email-star.starred {
  color: #f4b400;
}

.email-sender {
  font: var(--md-body-medium);
  color: var(--md-on-surface);
}

.email-subject {
  font: var(--md-body-medium);
  color: var(--md-on-surface);
}

.email-preview {
  font: var(--md-body-medium);
  color: var(--md-on-surface-variant);
}

.email-meta {
  font: var(--md-body-small);
  color: var(--md-on-surface-variant);
}

.email-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--md-spacing-8);
  text-align: center;
}

.email-empty-icon {
  font-size: 80px;
  color: var(--md-outline);
  margin-bottom: var(--md-spacing-4);
}

.email-empty-title {
  font: var(--md-headline-small);
  color: var(--md-on-surface);
  margin-bottom: var(--md-spacing-2);
}

.email-empty-text {
  font: var(--md-body-medium);
  color: var(--md-on-surface-variant);
}

@media (max-width: 900px) {
  .email-layout {
    grid-template-columns: 1fr;
  }
  
  .email-sidebar {
    display: none;
  }
  
  .email-item {
    grid-template-columns: auto 1fr auto;
  }
  
  .email-sender {
    display: none;
  }
}

/* ============================================
   GRID SYSTEM
   ============================================ */
.grid {
  display: grid;
  gap: var(--md-spacing-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ============================================
   SPLIT LAYOUT
   ============================================ */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--md-spacing-6);
  align-items: start;
}

@media (max-width: 1000px) {
  .split-layout {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   TABS
   ============================================ */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--md-outline-variant);
}

.tab {
  position: relative;
  padding: var(--md-spacing-4) var(--md-spacing-6);
  font: var(--md-title-small);
  color: var(--md-on-surface-variant);
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--md-motion-duration-short3) var(--md-motion-easing-standard);
}

.tab:hover {
  color: var(--md-primary);
  background: var(--md-surface-container);
}

.tab.active {
  color: var(--md-primary);
}

.tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--md-primary);
  border-radius: 3px 3px 0 0;
  animation: expandWidth var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized-decelerate);
  transform-origin: center;
}

.tab-panel {
  display: none;
  animation: fadeIn var(--md-motion-duration-medium1) var(--md-motion-easing-standard);
}

.tab-panel.active {
  display: block;
}

/* ============================================
   DROPDOWN
   ============================================ */
.dropdown {
  position: relative;
  z-index: 100;
}

.dropdown-menu {
  position: fixed;
  min-width: 220px;
  background: var(--md-surface-container-lowest, var(--md-surface));
  border-radius: var(--md-shape-medium);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15), 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: var(--md-spacing-2);
  z-index: 999999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.95);
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  border: 1px solid var(--md-outline-variant, rgba(0,0,0,0.1));
  pointer-events: auto;
}

/* Dropdown open state handled by JavaScript */

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-3);
  padding: var(--md-spacing-3) var(--md-spacing-4);
  font: var(--md-body-medium);
  color: var(--md-on-surface);
  border-radius: var(--md-shape-extra-small);
  cursor: pointer;
  transition: background var(--md-motion-duration-short3) var(--md-motion-easing-standard);
  text-decoration: none;
}

.dropdown-item:hover {
  background: var(--md-surface-container-high);
  text-decoration: none;
}

.dropdown-divider {
  height: 1px;
  background: var(--md-outline-variant);
  margin: var(--md-spacing-2) 0;
}

/* ============================================
   PROGRESS
   ============================================ */
.progress {
  height: 4px;
  background: var(--md-surface-container-highest);
  border-radius: var(--md-shape-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--md-primary);
  border-radius: var(--md-shape-full);
  transition: width var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

/* ============================================
   AVATAR
   ============================================ */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--md-shape-full);
  object-fit: cover;
  background: var(--md-surface-container-high);
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-lg { width: 56px; height: 56px; }

.avatar-initials {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-primary);
  color: var(--md-on-primary);
  font: var(--md-label-large);
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
  padding: var(--md-spacing-16) var(--md-spacing-8);
  text-align: center;
}

.empty-state-icon {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--md-spacing-6);
  background: var(--md-surface-container);
  border-radius: var(--md-shape-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--md-outline);
}

.empty-state-title {
  font: var(--md-headline-small);
  color: var(--md-on-surface);
  margin-bottom: var(--md-spacing-2);
}

.empty-state-description {
  font: var(--md-body-large);
  color: var(--md-on-surface-variant);
  max-width: 400px;
  margin: 0 auto var(--md-spacing-6);
}

/* ============================================
   SPINNER
   ============================================ */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--md-outline-variant);
  border-top-color: var(--md-primary);
  border-radius: var(--md-shape-full);
  animation: spin 0.8s linear infinite;
}

.spinner-sm { width: 16px; height: 16px; border-width: 2px; }
.spinner-lg { width: 40px; height: 40px; border-width: 4px; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: var(--md-spacing-6) 0;
  border-top: 1px solid var(--md-outline-variant);
  background: var(--md-surface);
  margin-top: auto;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--md-spacing-4);
}

.footer-text {
  font: var(--md-body-small);
  color: var(--md-on-surface-variant);
}

.footer-links {
  display: flex;
  gap: var(--md-spacing-6);
}

.footer-link {
  font: var(--md-body-small);
  color: var(--md-on-surface-variant);
}

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

/* ============================================
   CREDENTIAL BOXES (Admin Panel)
   ============================================ */
.credential-box {
  padding: 10px 14px;
  border-radius: 10px;
  position: relative;
  border: 1px solid transparent;
}

.credential-box.credential-success {
  background: linear-gradient(135deg, rgba(30, 142, 62, 0.08), rgba(30, 142, 62, 0.15));
  border-color: rgba(30, 142, 62, 0.3);
}

.credential-box.credential-fallback {
  background: linear-gradient(135deg, rgba(217, 48, 37, 0.08), rgba(217, 48, 37, 0.15));
  border-color: rgba(217, 48, 37, 0.3);
}

.credential-box.credential-neutral {
  background: var(--md-surface-container-low);
  border-color: var(--md-outline-variant);
}

.credential-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.credential-row:last-of-type {
  margin-bottom: 0;
}

.credential-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  min-width: 55px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.credential-value {
  font-size: 13px;
  color: var(--md-on-surface);
  word-break: break-all;
}

.credential-code {
  font-family: var(--md-font-mono);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.06);
  word-break: break-all;
  display: inline-block;
  max-width: 200px;
}

.credential-code-success {
  background: rgba(30, 142, 62, 0.15);
  color: #0d652d;
}

.credential-code-danger {
  background: rgba(217, 48, 37, 0.15);
  color: #5f2120;
}

.credential-badge {
  position: absolute;
  top: -8px;
  right: 10px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--md-surface);
  color: var(--md-on-surface-variant);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

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

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

/* ============================================
   UTILITIES
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Typography */
.display-large { font: var(--md-display-large); }
.display-medium { font: var(--md-display-medium); }
.display-small { font: var(--md-display-small); }
.headline-large { font: var(--md-headline-large); }
.headline-medium { font: var(--md-headline-medium); }
.headline-small { font: var(--md-headline-small); }
.title-large { font: var(--md-title-large); }
.title-medium { font: var(--md-title-medium); }
.title-small { font: var(--md-title-small); }
.body-large { font: var(--md-body-large); }
.body-medium { font: var(--md-body-medium); }
.body-small { font: var(--md-body-small); }
.label-large { font: var(--md-label-large); }
.label-medium { font: var(--md-label-medium); }
.label-small { font: var(--md-label-small); }

/* Colors */
.text-primary { color: var(--md-primary); }
.text-secondary { color: var(--md-on-surface-variant); }
.text-tertiary { color: var(--md-outline); }
.text-error { color: var(--md-error); }
.text-success { color: var(--md-tertiary); }

/* Layout */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.gap-1 { gap: var(--md-spacing-1); }
.gap-2 { gap: var(--md-spacing-2); }
.gap-3 { gap: var(--md-spacing-3); }
.gap-4 { gap: var(--md-spacing-4); }
.gap-6 { gap: var(--md-spacing-6); }
.gap-8 { gap: var(--md-spacing-8); }

.p-4 { padding: var(--md-spacing-4); }
.p-6 { padding: var(--md-spacing-6); }
.p-8 { padding: var(--md-spacing-8); }

.mt-2 { margin-top: var(--md-spacing-2); }
.mt-4 { margin-top: var(--md-spacing-4); }
.mt-6 { margin-top: var(--md-spacing-6); }
.mt-8 { margin-top: var(--md-spacing-8); }
.mb-2 { margin-bottom: var(--md-spacing-2); }
.mb-4 { margin-bottom: var(--md-spacing-4); }
.mb-6 { margin-bottom: var(--md-spacing-6); }
.mb-8 { margin-bottom: var(--md-spacing-8); }

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

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

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rounded-md { border-radius: var(--md-shape-medium); }
.rounded-lg { border-radius: var(--md-shape-large); }
.rounded-full { border-radius: var(--md-shape-full); }

.shadow-1 { box-shadow: var(--md-elevation-1); }
.shadow-2 { box-shadow: var(--md-elevation-2); }
.shadow-3 { box-shadow: var(--md-elevation-3); }
.shadow-4 { box-shadow: var(--md-elevation-4); }
.shadow-5 { box-shadow: var(--md-elevation-5); }

.cursor-pointer { cursor: pointer; }
.select-none { user-select: none; }
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Transitions */
.transition {
  transition: all var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}