/**
 * Material 3 Design System CSS
 * Implements Google's Material Design 3 tokens and components
 */

:root {
  /* Material 3 Color Tokens */
  --md-sys-color-primary: #1976d2;
  --md-sys-color-on-primary: #ffffff;
  --md-sys-color-primary-container: #d3e3fd;
  --md-sys-color-on-primary-container: #001c38;
  
  --md-sys-color-secondary: #565e71;
  --md-sys-color-on-secondary: #ffffff;
  --md-sys-color-secondary-container: #dae2f9;
  --md-sys-color-on-secondary-container: #131c2b;
  
  --md-sys-color-tertiary: #705575;
  --md-sys-color-on-tertiary: #ffffff;
  --md-sys-color-tertiary-container: #fad8fd;
  --md-sys-color-on-tertiary-container: #28132e;
  
  --md-sys-color-error: #ba1a1a;
  --md-sys-color-on-error: #ffffff;
  --md-sys-color-error-container: #ffdad6;
  --md-sys-color-on-error-container: #410002;
  
  --md-sys-color-surface: #fefbff;
  --md-sys-color-on-surface: #1b1b1f;
  --md-sys-color-surface-variant: #e1e2ec;
  --md-sys-color-on-surface-variant: #44474f;
  --md-sys-color-surface-container: #f3f3f7;
  --md-sys-color-surface-container-high: #ededf1;
  --md-sys-color-surface-container-highest: #e8e8ec;
  
  --md-sys-color-outline: #74777f;
  --md-sys-color-outline-variant: #c4c7cf;
  
  /* Elevation Tokens */
  --md-elevation-level0: none;
  --md-elevation-level1: 0px 1px 2px 0px rgba(0, 0, 0, 0.3), 0px 1px 3px 1px rgba(0, 0, 0, 0.15);
  --md-elevation-level2: 0px 1px 2px 0px rgba(0, 0, 0, 0.3), 0px 2px 6px 2px rgba(0, 0, 0, 0.15);
  --md-elevation-level3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px 0px rgba(0, 0, 0, 0.3);
  --md-elevation-level4: 0px 6px 10px 4px rgba(0, 0, 0, 0.15), 0px 2px 3px 0px rgba(0, 0, 0, 0.3);
  --md-elevation-level5: 0px 8px 12px 6px rgba(0, 0, 0, 0.15), 0px 4px 4px 0px rgba(0, 0, 0, 0.3);
  
  /* Typography Tokens */
  --md-sys-typescale-display-large-font: 'Google Sans', 'Roboto', 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: 'Google Sans', 'Roboto', 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: 'Google Sans', '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;
}

/* Dark Theme */
[data-theme="dark"] {
  --md-sys-color-primary: #a6c8ff;
  --md-sys-color-on-primary: #003258;
  --md-sys-color-primary-container: #004881;
  --md-sys-color-on-primary-container: #d3e3fd;
  
  --md-sys-color-secondary: #bec6dc;
  --md-sys-color-on-secondary: #283141;
  --md-sys-color-secondary-container: #3e4759;
  --md-sys-color-on-secondary-container: #dae2f9;
  
  --md-sys-color-tertiary: #debcdf;
  --md-sys-color-on-tertiary: #3e2844;
  --md-sys-color-tertiary-container: #563e5c;
  --md-sys-color-on-tertiary-container: #fad8fd;
  
  --md-sys-color-error: #ffb4ab;
  --md-sys-color-on-error: #690005;
  --md-sys-color-error-container: #93000a;
  --md-sys-color-on-error-container: #ffdad6;
  
  --md-sys-color-surface: #10131a;
  --md-sys-color-on-surface: #e3e2e6;
  --md-sys-color-surface-variant: #44474f;
  --md-sys-color-on-surface-variant: #c4c7cf;
  --md-sys-color-surface-container: #1e2129;
  --md-sys-color-surface-container-high: #282a31;
  --md-sys-color-surface-container-highest: #33353c;
  
  --md-sys-color-outline: #8e9099;
  --md-sys-color-outline-variant: #44474f;
}

/* Base Styles */
* {
  box-sizing: border-box;
}

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-surface);
  background-color: var(--md-sys-color-surface);
  margin: 0;
  padding: 0;
}

/* Typography */
h1 {
  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);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 16px 0;
}

h2 {
  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);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 12px 0;
}

h3 {
  font-size: 20px;
  font-weight: 500;
  line-height: 24px;
  color: var(--md-sys-color-on-surface);
  margin: 0 0 8px 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 20px;
  border: none;
  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);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  min-height: 40px;
}

.btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: var(--md-elevation-level1);
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 92%, var(--md-sys-color-on-primary));
}

.btn-outlined {
  background-color: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline);
}

.btn-outlined:hover:not(:disabled) {
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
}

.btn-text {
  background-color: transparent;
  color: var(--md-sys-color-primary);
  padding: 10px 12px;
}

.btn-text:hover:not(:disabled) {
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 20px;
  border: none;
  background-color: transparent;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  transition: all 0.2s ease;
}

.icon-btn:hover:not(:disabled) {
  background-color: color-mix(in srgb, var(--md-sys-color-on-surface) 8%, transparent);
}

/* Form Elements */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: var(--md-sys-typescale-label-large-weight);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 16px;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: 4px;
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font-size: 16px;
  font-family: inherit;
  transition: all 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--md-sys-color-primary);
  border-width: 2px;
  padding: 15px;
}

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

/* Cards */
.card {
  background-color: var(--md-sys-color-surface-container);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--md-elevation-level1);
}

/* Modals - Enhanced Material 3 Design */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.2s var(--md-sys-motion-easing-standard);
  padding: 16px;
}

.modal-overlay.modal-open {
  opacity: 1;
}

.modal {
  background-color: var(--md-sys-color-surface-container-high);
  border-radius: var(--md-sys-shape-corner-extra-large);
  max-width: 560px;
  width: 100%;
  max-height: calc(100vh - 32px);
  overflow: hidden;
  box-shadow: var(--md-elevation-level3);
  transform: scale(0.9) translateY(20px);
  transition: transform 0.2s var(--md-sys-motion-easing-emphasized);
  display: flex;
  flex-direction: column;
}

.modal-overlay.modal-open .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 24px 16px 24px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  flex-shrink: 0;
}

.modal-header h3 {
  margin: 0;
  font-family: var(--md-sys-typescale-headline-small-font);
  font-size: var(--md-sys-typescale-headline-small-size);
  font-weight: var(--md-sys-typescale-headline-small-weight);
  line-height: var(--md-sys-typescale-headline-small-line-height);
  color: var(--md-sys-color-on-surface);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px 24px 24px;
  border-top: 1px solid var(--md-sys-color-outline-variant);
  flex-shrink: 0;
}

/* Modal Size Variants */
.modal-small {
  max-width: 400px;
}

.modal-medium {
  max-width: 600px;
}

.modal-large {
  max-width: 800px;
}

.modal-fullscreen {
  max-width: 95vw;
  max-height: 95vh;
  width: 95vw;
  height: 95vh;
}

/* Modal Close Button */
.modal-close {
  color: var(--md-sys-color-on-surface-variant);
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--md-sys-shape-corner-full);
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
}

/* Enhanced Notification System */
.notification-container {
  position: fixed;
  top: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 2000;
  max-width: 420px;
  pointer-events: none;
}

/* Notification badge */
.notification-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--md-sys-color-error);
    color: var(--md-sys-color-on-error);
    border-radius: 10px;
    padding: 2px 6px;
    font-size: 12px;
    font-weight: 500;
    min-width: 16px;
    text-align: center;
    line-height: 1.2;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.btn {
    position: relative;
}

.notification {
  background: var(--md-sys-color-surface-container-high);
  border-radius: var(--md-sys-shape-corner-large);
  box-shadow: var(--md-elevation-level3);
  padding: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  transform: translateX(100%);
  opacity: 0;
  transition: all 0.3s var(--md-sys-motion-easing-emphasized);
  border-left: 4px solid var(--md-sys-color-primary);
  pointer-events: auto;
  min-width: 320px;
  position: relative;
}

.notification.notification-show {
  transform: translateX(0);
  opacity: 1;
}

.notification.notification-hide {
  transform: translateX(100%);
  opacity: 0;
}

/* Notification Type Variants */
.notification-success {
  border-left-color: var(--md-sys-color-tertiary);
  background: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
}

.notification-error {
  border-left-color: var(--md-sys-color-error);
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
}

.notification-warning {
  border-left-color: var(--md-sys-color-secondary);
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.notification-info {
  border-left-color: var(--md-sys-color-primary);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.notification-content {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.notification-icon {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.notification-text {
  flex: 1;
  min-width: 0;
}

.notification-message {
  font-family: var(--md-sys-typescale-body-medium-font);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line-height);
  font-weight: 400;
  word-wrap: break-word;
  margin: 0;
}

.notification-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.notification-action {
  font-size: 12px;
  padding: 6px 12px;
  height: auto;
  min-height: 32px;
}

.notification-close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 32px;
  height: 32px;
  padding: 0;
  color: inherit;
  opacity: 0.7;
  transition: opacity 0.2s ease;
  border-radius: var(--md-sys-shape-corner-full);
}

.notification-close:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.1);
}

/* Enhanced Component System */

/* Utilities */
.text-primary {
  color: var(--md-sys-color-primary);
}

.text-error {
  color: var(--md-sys-color-error);
}

.text-on-surface {
  color: var(--md-sys-color-on-surface);
}

.text-on-surface-variant {
  color: var(--md-sys-color-on-surface-variant);
}

.bg-surface {
  background-color: var(--md-sys-color-surface);
}

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

.elevation-1 {
  box-shadow: var(--md-elevation-level1);
}

.elevation-2 {
  box-shadow: var(--md-elevation-level2);
}

.elevation-3 {
  box-shadow: var(--md-elevation-level3);
}

/* Enhanced Card System */
.card {
  background-color: var(--md-sys-color-surface-container);
  border-radius: var(--md-sys-shape-corner-large);
  padding: 20px;
  box-shadow: var(--md-elevation-level1);
  border: 1px solid var(--md-sys-color-outline-variant);
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

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

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

.card-outlined {
  border: 2px solid var(--md-sys-color-outline);
  box-shadow: none;
}

.card-filled {
  background-color: var(--md-sys-color-surface-container-high);
}

/* Enhanced Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--md-sys-shape-corner-full);
  border: none;
  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);
  cursor: pointer;
  transition: all 0.2s var(--md-sys-motion-easing-standard);
  text-decoration: none;
  min-height: 40px;
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: var(--md-elevation-level1);
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 92%, var(--md-sys-color-on-primary));
}

.btn-secondary {
  background-color: var(--md-sys-color-secondary);
  color: var(--md-sys-color-on-secondary);
}

.btn-secondary:hover:not(:disabled) {
  box-shadow: var(--md-elevation-level1);
  background-color: color-mix(in srgb, var(--md-sys-color-secondary) 92%, var(--md-sys-color-on-secondary));
}

.btn-outlined {
  background-color: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline);
}

.btn-outlined:hover:not(:disabled) {
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
  border-color: var(--md-sys-color-primary);
}

.btn-text {
  background-color: transparent;
  color: var(--md-sys-color-primary);
  padding: 10px 12px;
}

.btn-text:hover:not(:disabled) {
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
}

.btn-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  padding: 0;
  border-radius: var(--md-sys-shape-corner-full);
  background-color: transparent;
  color: var(--md-sys-color-on-surface-variant);
}

.btn-icon:hover:not(:disabled) {
  background-color: color-mix(in srgb, var(--md-sys-color-on-surface) 8%, transparent);
}

/* Button Size Variants */
.btn-small {
  padding: 6px 16px;
  min-height: 32px;
  font-size: 12px;
}

.btn-large {
  padding: 14px 32px;
  min-height: 48px;
  font-size: 16px;
}

/* Enhanced Form System */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: var(--md-sys-typescale-body-small-size);
  font-weight: var(--md-sys-typescale-body-small-weight);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 16px;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-medium);
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font-size: 16px;
  font-family: inherit;
  transition: all 0.2s var(--md-sys-motion-easing-standard);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--md-sys-color-primary);
  border-width: 2px;
  padding: 15px; /* Adjust for thicker border */
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--md-sys-color-on-surface-variant);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

/* Form Field Variants */
.form-field-outlined {
  position: relative;
}

.form-field-outlined .form-input {
  padding-top: 24px;
  padding-bottom: 8px;
}

.form-field-outlined .form-label {
  position: absolute;
  top: 16px;
  left: 16px;
  transition: all 0.2s ease;
  pointer-events: none;
  background: var(--md-sys-color-surface);
  padding: 0 4px;
}

.form-field-outlined .form-input:focus + .form-label,
.form-field-outlined .form-input:not(:placeholder-shown) + .form-label {
  top: -8px;
  font-size: 12px;
  color: var(--md-sys-color-primary);
}

/* Enhanced Navigation */
.sidebar {
  background: var(--md-sys-color-surface-container);
  border-right: 1px solid var(--md-sys-color-outline-variant);
  padding: 24px 0;
  width: 280px;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  overflow-y: auto;
  z-index: 100;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 24px;
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
  transition: all 0.2s var(--md-sys-motion-easing-standard);
  border-radius: 0 28px 28px 0;
  margin: 4px 12px 4px 0;
  position: relative;
}

.nav-item:hover {
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
  color: var(--md-sys-color-primary);
}

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

.nav-item .material-icons-round {
  font-size: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  margin-bottom: 16px;
  font-size: 20px;
  font-weight: 500;
  color: var(--md-sys-color-primary);
}

.brand .material-icons-round {
  font-size: 32px;
}

/* Main Content Area */
.main {
  /* Removed margin-left: 280px; to prevent conflicts with CSS Grid layout */
  /* The CSS Grid layout in style.css and layout-fixes.css handles positioning */
  padding: 24px;
}
  min-height: 100vh;
  background: var(--md-sys-color-surface);
}

/* Layout Components */
.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.page-title-section {
  flex: 1;
}

.page-title {
  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);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 8px 0;
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-title .material-icons-round {
  font-size: 36px;
  color: var(--md-sys-color-primary);
}

.page-subtitle {
  font-size: 14px;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 500;
}

.page-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

/* Grid Systems */
.grid {
  display: grid;
  gap: 24px;
}

.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(300px, 1fr));
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--md-sys-color-surface-container);
  border-radius: var(--md-sys-shape-corner-large);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--md-sys-color-outline-variant);
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.stat-card:hover {
  border-color: var(--md-sys-color-primary);
  box-shadow: var(--md-elevation-level1);
}

.stat-icon {
  color: var(--md-sys-color-primary);
  font-size: 24px;
}

.stat-content {
  flex: 1;
}

.stat-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  margin: 0 0 4px 0;
}

.stat-label {
  font-size: 14px;
  color: var(--md-sys-color-on-surface-variant);
  margin: 0;
}

/* Section Components */
.section {
  margin-bottom: 32px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-title {
  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);
  color: var(--md-sys-color-on-surface);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-actions {
  display: flex;
  gap: 8px;
}

/* Filter Components */
.filter-section {
  margin-bottom: 24px;
}

.filter-card {
  background: var(--md-sys-color-surface-container);
  border-radius: var(--md-sys-shape-corner-large);
  padding: 24px;
  border: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: var(--md-elevation-level1);
}

.filter-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.filter-row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.filter-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--md-sys-color-on-surface-variant);
}

.empty-state-icon {
  margin-bottom: 24px;
}

.empty-state-icon .material-icons-round {
  font-size: 80px;
  opacity: 0.3;
  color: var(--md-sys-color-on-surface-variant);
}

.empty-state-title {
  font-size: 24px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin: 0 0 12px 0;
}

.empty-state-description {
  font-size: 16px;
  line-height: 1.5;
  margin: 0 0 32px 0;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* Loading States */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  color: var(--md-sys-color-on-surface-variant);
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--md-sys-color-outline-variant);
  border-top: 3px solid var(--md-sys-color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 16px;
}

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

/* Table Components */
.table-container {
  background: var(--md-sys-color-surface-container);
  border-radius: var(--md-sys-shape-corner-large);
  overflow: hidden;
  border: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: var(--md-elevation-level1);
}

.table-responsive {
  overflow-x: auto;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 32px 0;
}

.page-numbers {
  display: flex;
  gap: 4px;
  align-items: center;
}

.pagination-ellipsis {
  padding: 8px 12px;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .modal {
    width: 95vw;
    margin: 16px;
  }
  
  .modal-header {
    padding: 16px 16px 12px 16px;
  }
  
  .modal-body {
    padding: 16px;
  }
  
  .modal-footer {
    padding: 12px 16px 16px 16px;
    flex-direction: column;
  }
  
  .modal-footer .btn {
    width: 100%;
  }

  /* Responsive navigation */
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .main {
    margin-left: 0;
  }

  /* Mobile-first layout adjustments */
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .page-actions {
    width: 100%;
    justify-content: stretch;
  }

  .page-actions .btn {
    flex: 1;
  }

  /* Card responsive behavior */
  .card {
    margin-bottom: 16px;
    padding: 16px;
  }

  /* Form responsive behavior */
  .form-row {
    flex-direction: column;
  }

  .form-group {
    margin-bottom: 16px;
  }

  /* Stats grid responsive */
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* Table responsive */
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 480px) {
  .modal {
    width: 100vw;
    height: 100vh;
    margin: 0;
    border-radius: 0;
  }

  .btn {
    min-height: 44px;
    padding: 12px 16px;
  }

  .form-input {
    min-height: 44px;
    padding: 12px;
  }
}

/* Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal {
  animation: fadeIn 0.2s ease-out;
}

/* Focus Management */
.btn:focus-visible,
.form-input:focus-visible,
.icon-btn:focus-visible {
  outline: 2px solid var(--md-sys-color-primary);
  outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .btn-outlined {
    border-width: 2px;
  }
  
  .form-input {
    border-width: 2px;
  }
}

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