@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');

:root {
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-on-primary-container: #21005D;
  --md-sys-color-secondary: #625B71;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #E8DEF8;
  --md-sys-color-on-secondary-container: #1D192B;
  --md-sys-color-surface: #FFFBFE;
  --md-sys-color-on-surface: #1C1B1F;
  --md-sys-color-surface-variant: #E7E0EC;
  --md-sys-color-on-surface-variant: #49454F;
  --md-sys-color-error: #B3261E;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #F9DEDC;
  --md-sys-color-on-error-container: #410E0B;
  --md-sys-color-outline: #79747E;
  --md-sys-color-background: #FFFBFE;
  --md-sys-color-on-background: #1C1B1F;
  --md-sys-elevation-level0: none;
  --md-sys-elevation-level1: 0px 1px 3px 1px rgba(0,0,0,0.15), 0px 1px 2px 0px rgba(0,0,0,0.3);
  --md-sys-elevation-level2: 0px 2px 6px 2px rgba(0,0,0,0.15), 0px 1px 2px 0px rgba(0,0,0,0.3);
  --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-shape-small: 4px;
  --md-sys-shape-medium: 8px;
  --md-sys-shape-large: 16px;
  --md-sys-shape-extra-large: 28px;
  --md-sys-font-family: 'Roboto', sans-serif;
}

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

body {
  font-family: var(--md-sys-font-family);
  background-color: var(--md-sys-color-background);
  color: var(--md-sys-color-on-background);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* App Bar */
.md-app-bar {
  display: flex;
  align-items: center;
  height: 64px;
  padding: 0 16px;
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  box-shadow: var(--md-sys-elevation-level1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.md-app-bar__title {
  font-size: 22px;
  font-weight: 500;
  flex: 1;
  margin-left: 16px;
}

.md-app-bar__actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* Bottom Navigation */
.md-bottom-nav {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background-color: var(--md-sys-color-surface);
  box-shadow: 0px -1px 3px rgba(0,0,0,0.15);
  z-index: 100;
  justify-content: space-around;
  align-items: center;
  padding-bottom: 8px;
}

.md-bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px 16px;
  border: none;
  background: none;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  font-size: 12px;
  font-family: var(--md-sys-font-family);
  text-decoration: none;
  min-width: 64px;
  transition: color 0.2s;
}

.md-bottom-nav__item--active {
  color: var(--md-sys-color-primary);
}

.md-bottom-nav__item .material-icons {
  font-size: 24px;
}

/* Cards */
.md-card {
  background-color: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-medium);
  padding: 16px;
  transition: box-shadow 0.3s ease;
}

.md-card--elevated {
  box-shadow: var(--md-sys-elevation-level1);
}

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

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

/* Buttons */
.md-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 24px;
  border: none;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--md-sys-font-family);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.1px;
}

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

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

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

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

.md-btn--outlined:hover {
  background-color: var(--md-sys-color-primary-container);
}

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

.md-btn--small {
  height: 32px;
  padding: 0 16px;
  font-size: 12px;
}

/* FAB */
.md-fab {
  position: fixed;
  bottom: 96px;
  right: 16px;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border: none;
  box-shadow: var(--md-sys-elevation-level3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 90;
}

.md-fab:hover {
  box-shadow: var(--md-sys-elevation-level3);
  transform: scale(1.05);
}

.md-fab .material-icons {
  font-size: 28px;
}

/* Text Field */
.md-text-field {
  position: relative;
  margin-bottom: 16px;
}

.md-text-field input,
.md-text-field textarea,
.md-text-field select {
  width: 100%;
  height: 56px;
  padding: 16px 16px 8px;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-small);
  font-size: 16px;
  font-family: var(--md-sys-font-family);
  background-color: transparent;
  outline: none;
  transition: border-color 0.2s;
  color: var(--md-sys-color-on-surface);
}

.md-text-field textarea {
  height: auto;
  min-height: 56px;
  padding-top: 24px;
  resize: vertical;
}

.md-text-field label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  color: var(--md-sys-color-on-surface-variant);
  transition: all 0.2s ease;
  pointer-events: none;
  background-color: var(--md-sys-color-surface);
  padding: 0 4px;
}

.md-text-field textarea ~ label {
  top: 16px;
  transform: none;
}

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

.md-text-field input:focus ~ label,
.md-text-field input:not(:placeholder-shown) ~ label,
.md-text-field textarea:focus ~ label,
.md-text-field textarea:not(:placeholder-shown) ~ label {
  top: 0;
  font-size: 12px;
  color: var(--md-sys-color-primary);
}

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

.md-text-field__error {
  color: var(--md-sys-color-error);
  font-size: 12px;
  margin-top: 4px;
  display: none;
}

.md-text-field--error .md-text-field__error {
  display: block;
}

/* Dropdown / Select */
.md-dropdown {
  position: relative;
  margin-bottom: 16px;
}

.md-dropdown select {
  width: 100%;
  height: 56px;
  padding: 16px 16px 8px;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-small);
  font-size: 16px;
  font-family: var(--md-sys-font-family);
  background-color: var(--md-sys-color-surface);
  outline: none;
  appearance: none;
  cursor: pointer;
  color: var(--md-sys-color-on-surface);
}

.md-dropdown::after {
  content: 'arrow_drop_down';
  font-family: 'Material Icons';
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--md-sys-color-on-surface-variant);
  pointer-events: none;
}

.md-dropdown label {
  position: absolute;
  left: 16px;
  top: 0;
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant);
  background-color: var(--md-sys-color-surface);
  padding: 0 4px;
  pointer-events: none;
}

/* Chips */
.md-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 16px;
  border-radius: 16px;
  font-size: 13px;
  font-weight: 500;
  background-color: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface);
  border: none;
  cursor: default;
}

.md-chip--success {
  background-color: #E8F5E9;
  color: #2E7D32;
}

.md-chip--error {
  background-color: #FFEBEE;
  color: #C62828;
}

.md-chip--warning {
  background-color: #FFF3E0;
  color: #E65100;
}

.md-chip--info {
  background-color: #E3F2FD;
  color: #1565C0;
}

/* Switch */
.md-switch {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  cursor: pointer;
}

.md-switch input {
  display: none;
}

.md-switch__track {
  width: 52px;
  height: 32px;
  background-color: var(--md-sys-color-surface-variant);
  border-radius: 16px;
  position: relative;
  transition: background-color 0.2s;
  border: 2px solid var(--md-sys-color-outline);
}

.md-switch__thumb {
  width: 24px;
  height: 24px;
  background-color: var(--md-sys-color-on-surface-variant);
  border-radius: 50%;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: all 0.2s ease;
}

.md-switch input:checked + .md-switch__track {
  background-color: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
}

.md-switch input:checked + .md-switch__track .md-switch__thumb {
  left: 22px;
  background-color: var(--md-sys-color-on-primary);
}

/* Dialog */
.md-dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0,0,0,0.32);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  animation: fadeIn 0.2s ease;
}

.md-dialog-overlay--open {
  display: flex;
}

.md-dialog {
  background-color: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-large);
  padding: 24px;
  min-width: 312px;
  max-width: 560px;
  box-shadow: var(--md-sys-elevation-level3);
  animation: scaleIn 0.2s ease;
}

.md-dialog__title {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 16px;
}

.md-dialog__content {
  font-size: 16px;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 24px;
}

.md-dialog__actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Snackbar */
.md-snackbar {
  position: fixed;
  bottom: 96px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: var(--md-sys-color-on-surface);
  color: var(--md-sys-color-surface);
  padding: 14px 24px;
  border-radius: var(--md-sys-shape-small);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--md-sys-elevation-level3);
  z-index: 300;
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  transition: all 0.3s ease;
  min-width: 288px;
  max-width: 568px;
}

.md-snackbar--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.md-snackbar--success {
  background-color: #2E7D32;
  color: white;
}

.md-snackbar--error {
  background-color: var(--md-sys-color-error);
  color: white;
}

/* List Tile */
.md-list-tile {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  cursor: pointer;
  transition: background-color 0.2s;
  text-decoration: none;
  color: inherit;
}

.md-list-tile:hover {
  background-color: var(--md-sys-color-surface-variant);
}

.md-list-tile__title {
  font-size: 16px;
  font-weight: 500;
}

.md-list-tile__subtitle {
  font-size: 14px;
  color: var(--md-sys-color-on-surface-variant);
}

/* Divider */
.md-divider {
  height: 1px;
  background-color: var(--md-sys-color-outline);
  margin: 8px 0;
}

/* Progress */
.md-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  z-index: 999;
  display: none;
}

.md-progress--visible {
  display: block;
}

.md-progress__bar {
  height: 100%;
  background-color: var(--md-sys-color-primary);
  animation: mdProgress 1.5s infinite ease-in-out;
  width: 30%;
}

@keyframes mdProgress {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}

/* Table */
.md-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-medium);
  overflow: hidden;
}

.md-table th {
  text-align: left;
  padding: 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  border-bottom: 1px solid var(--md-sys-color-outline);
  background-color: var(--md-sys-color-surface);
}

.md-table td {
  padding: 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--md-sys-color-surface-variant);
}

.md-table tr:hover {
  background-color: var(--md-sys-color-surface-variant);
}

/* Badge */
.md-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 6px;
  border-radius: 9px;
  background-color: var(--md-sys-color-error);
  color: var(--md-sys-color-on-error);
  font-size: 11px;
  font-weight: 500;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background-color: var(--md-sys-color-surface);
  box-shadow: var(--md-sys-elevation-level1);
  z-index: 90;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar__header {
  padding: 24px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar__logo {
  width: 40px;
  height: 40px;
  background-color: var(--md-sys-color-primary);
  border-radius: var(--md-sys-shape-small);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-on-primary);
  font-size: 24px;
}

.sidebar__title {
  font-size: 18px;
  font-weight: 500;
}

.sidebar__nav {
  flex: 1;
  padding: 8px;
}

.sidebar__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--md-sys-shape-large);
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  transition: background-color 0.2s;
}

.sidebar__item:hover {
  background-color: var(--md-sys-color-surface-variant);
}

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

.sidebar__item .material-icons {
  font-size: 24px;
}

/* Main content area */
.main-content {
  margin-left: 280px;
  min-height: 100vh;
  padding: 24px;
}

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

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

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

.page-enter {
  animation: slideUp 0.2s ease;
}

/* Avatar */
.md-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 500;
  color: white;
  flex-shrink: 0;
}

/* Pagination */
.md-pagination {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 24px;
}

.md-pagination__item {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 14px;
  color: var(--md-sys-color-on-surface);
  transition: background-color 0.2s;
}

.md-pagination__item:hover {
  background-color: var(--md-sys-color-surface-variant);
}

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

/* Ripple */
.md-ripple {
  position: absolute;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.3);
  transform: scale(0);
  animation: rippleAnim 0.6s ease-out;
  pointer-events: none;
}

@keyframes rippleAnim {
  to { transform: scale(4); opacity: 0; }
}

/* Summary card */
.md-summary-card {
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-radius: var(--md-sys-shape-medium);
  padding: 20px 24px;
  margin-bottom: 24px;
}

.md-summary-card__value {
  font-size: 32px;
  font-weight: 700;
}

.md-summary-card__label {
  font-size: 14px;
  opacity: 0.8;
}

/* Empty state */
.md-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  color: var(--md-sys-color-on-surface-variant);
}

.md-empty-state .material-icons {
  font-size: 64px;
  margin-bottom: 16px;
  opacity: 0.4;
}

.md-empty-state__text {
  font-size: 16px;
  margin-bottom: 16px;
}

/* Tooltip */
.md-tooltip {
  position: relative;
}

.md-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 8px;
  background-color: var(--md-sys-color-on-surface);
  color: var(--md-sys-color-surface);
  font-size: 12px;
  border-radius: var(--md-sys-shape-small);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.md-tooltip:hover::after {
  opacity: 1;
}