@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700;900&display=swap");
:root,
.flat {
  --flat-bg: #FFFFFF;
  --flat-bg-alt: #F5F5F5;
  --flat-surface: #FFFFFF;
  --flat-surface-alt: #FAFAFA;
  --flat-primary: #2196F3;
  --flat-primary-hover: #1976D2;
  --flat-primary-active: #1565C0;
  --flat-secondary: #009688;
  --flat-secondary-hover: #00796B;
  --flat-accent: #E91E63;
  --flat-accent-hover: #C2185B;
  --flat-amber: #FF9800;
  --flat-amber-hover: #F57C00;
  --flat-purple: #673AB7;
  --flat-purple-hover: #512DA8;
  --flat-green: #4CAF50;
  --flat-green-hover: #388E3C;
  --flat-red: #F44336;
  --flat-red-hover: #D32F2F;
  --flat-text: #212121;
  --flat-text-secondary: #616161;
  --flat-text-tertiary: #9E9E9E;
  --flat-text-on-color: #FFFFFF;
  --flat-text-on-amber: #212121;
  --flat-border: #E0E0E0;
  --flat-border-strong: #BDBDBD;
  --flat-success: var(--flat-green);
  --flat-warning: var(--flat-amber);
  --flat-error: var(--flat-red);
  --flat-info: var(--flat-primary);
  --flat-radius-sm: 2px;
  --flat-radius-md: 3px;
  --flat-radius-lg: 4px;
  --flat-radius-full: 9999px;
  --flat-font: 'Roboto', system-ui, -apple-system, sans-serif;
  --flat-text-xs: 400 0.75rem/1.4 var(--flat-font);
  --flat-text-sm: 400 0.875rem/1.5 var(--flat-font);
  --flat-text-base: 400 1rem/1.5 var(--flat-font);
  --flat-text-md: 500 1rem/1.5 var(--flat-font);
  --flat-text-lg: 500 1.125rem/1.4 var(--flat-font);
  --flat-text-xl: 700 1.25rem/1.3 var(--flat-font);
  --flat-text-2xl: 700 1.5rem/1.2 var(--flat-font);
  --flat-text-3xl: 700 2rem/1.1 var(--flat-font);
  --flat-text-4xl: 900 2.5rem/1.05 var(--flat-font);
  --flat-label: 500 0.8125rem/1.2 var(--flat-font);
  --flat-caption: 400 0.75rem/1.4 var(--flat-font);
  --flat-duration-fast: 100ms;
  --flat-duration-normal: 150ms;
  --flat-easing: linear;
  --flat-easing-out: ease-out;
  --flat-space-1: 4px;
  --flat-space-2: 8px;
  --flat-space-3: 12px;
  --flat-space-4: 16px;
  --flat-space-5: 20px;
  --flat-space-6: 24px;
  --flat-space-8: 32px;
  --flat-space-10: 40px;
  --flat-space-12: 48px;
  --flat-focus-ring: 2px solid var(--flat-primary);
  --flat-focus-offset: 2px;
}

.flat.dark,
.flat[data-theme=dark],
[data-theme=dark] .flat {
  --flat-bg: #121212;
  --flat-bg-alt: #1E1E1E;
  --flat-surface: #1E1E1E;
  --flat-surface-alt: #2A2A2A;
  --flat-text: #E0E0E0;
  --flat-text-secondary: #AAAAAA;
  --flat-text-tertiary: #757575;
  --flat-border: #333333;
  --flat-border-strong: #444444;
  --flat-primary: #2196F3;
  --flat-primary-hover: #42A5F5;
  --flat-primary-active: #64B5F6;
  --flat-secondary: #009688;
  --flat-secondary-hover: #26A69A;
  --flat-accent: #E91E63;
  --flat-accent-hover: #F06292;
  --flat-amber: #FF9800;
  --flat-amber-hover: #FFB74D;
  --flat-purple: #7E57C2;
  --flat-purple-hover: #9575CD;
  --flat-green: #4CAF50;
  --flat-green-hover: #66BB6A;
  --flat-red: #F44336;
  --flat-red-hover: #EF5350;
}

.flat-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  font: var(--flat-label);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: var(--flat-radius-sm);
  height: 40px;
  padding: 0 20px;
  box-shadow: none;
  transition: background var(--flat-duration-fast) var(--flat-easing-out);
  -webkit-tap-highlight-color: transparent;
}
.flat-btn:hover {
  box-shadow: none;
}
.flat-btn:active {
  transform: scale(0.98);
}
.flat-btn:focus-visible {
  outline: var(--flat-focus-ring);
  outline-offset: var(--flat-focus-offset);
}
.flat-btn .flat-btn__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.flat-btn:disabled, .flat-btn[disabled] {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

.flat-btn--primary,
.flat-btn {
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
}
.flat-btn--primary:hover,
.flat-btn:hover {
  background: var(--flat-primary-hover);
}
.flat-btn--primary:active,
.flat-btn:active {
  background: var(--flat-primary-active);
}

.flat-btn--secondary {
  background: var(--flat-secondary);
  color: var(--flat-text-on-color);
}
.flat-btn--secondary:hover {
  background: var(--flat-secondary-hover);
}

.flat-btn--accent {
  background: var(--flat-accent);
  color: var(--flat-text-on-color);
}
.flat-btn--accent:hover {
  background: var(--flat-accent-hover);
}

.flat-btn--amber {
  background: var(--flat-amber);
  color: var(--flat-text-on-amber);
}
.flat-btn--amber:hover {
  background: var(--flat-amber-hover);
}

.flat-btn--purple {
  background: var(--flat-purple);
  color: var(--flat-text-on-color);
}
.flat-btn--purple:hover {
  background: var(--flat-purple-hover);
}

.flat-btn--outline {
  background: transparent;
  color: var(--flat-primary);
  border: 2px solid var(--flat-primary);
}
.flat-btn--outline:hover {
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
}

.flat-btn--ghost {
  background: transparent;
  color: var(--flat-primary);
  border: none;
}
.flat-btn--ghost:hover {
  background: var(--flat-bg-alt);
}
.flat-btn--ghost:active {
  background: var(--flat-border);
  transform: scale(0.98);
}

.flat-btn--danger {
  background: var(--flat-red);
  color: var(--flat-text-on-color);
}
.flat-btn--danger:hover {
  background: var(--flat-red-hover);
}

.flat-btn--sm {
  height: 32px;
  padding: 0 14px;
  font-size: 0.6875rem;
}
.flat-btn--sm .flat-btn__icon {
  width: 14px;
  height: 14px;
}

.flat-btn--lg {
  height: 48px;
  padding: 0 28px;
  font-size: 0.9375rem;
}
.flat-btn--lg .flat-btn__icon {
  width: 20px;
  height: 20px;
}

.flat-btn--icon {
  width: 40px;
  height: 40px;
  padding: 0;
}
.flat-btn--icon.flat-btn--sm {
  width: 32px;
  height: 32px;
}
.flat-btn--icon.flat-btn--lg {
  width: 48px;
  height: 48px;
}

.flat-btn--full {
  width: 100%;
}

.flat-btn--loading {
  pointer-events: none;
  position: relative;
}
.flat-btn--loading .flat-btn__label {
  visibility: hidden;
}
.flat-btn--loading::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: flat-spin 0.6s linear infinite;
}

@keyframes flat-spin {
  to {
    transform: rotate(360deg);
  }
}
.flat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--flat-surface);
  border: 1px solid var(--flat-border);
  border-radius: var(--flat-radius-sm);
  box-shadow: none;
  overflow: hidden;
}

.flat-card--interactive {
  cursor: pointer;
  transition: border-color var(--flat-duration-fast) var(--flat-easing-out);
}
.flat-card--interactive:hover {
  border-color: var(--flat-border-strong);
}
.flat-card--interactive:active {
  border-color: var(--flat-primary);
}
.flat-card--interactive:focus-visible {
  outline: var(--flat-focus-ring);
  outline-offset: var(--flat-focus-offset);
}

.flat-card--borderless {
  border: none;
  background: var(--flat-bg-alt);
}

.flat-card--color-top-blue {
  border-top: 4px solid var(--flat-primary);
}

.flat-card--color-top-teal {
  border-top: 4px solid var(--flat-secondary);
}

.flat-card--color-top-pink {
  border-top: 4px solid var(--flat-accent);
}

.flat-card--color-top-amber {
  border-top: 4px solid var(--flat-amber);
}

.flat-card--color-top-purple {
  border-top: 4px solid var(--flat-purple);
}

.flat-card--color-top-green {
  border-top: 4px solid var(--flat-green);
}

.flat-card--color-top-red {
  border-top: 4px solid var(--flat-red);
}

.flat-card__media {
  overflow: hidden;
  border-bottom: 1px solid var(--flat-border);
}
.flat-card__media img,
.flat-card__media video {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.flat-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px 0;
}

.flat-card__header-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.flat-card__title {
  font: var(--flat-text-lg);
  color: var(--flat-text);
  margin: 0;
}

.flat-card__subtitle {
  font: var(--flat-text-sm);
  color: var(--flat-text-secondary);
  margin: 0;
}

.flat-card__body {
  padding: 12px 16px 16px;
  font: var(--flat-text-base);
  color: var(--flat-text);
}

.flat-card__header + .flat-card__body {
  padding-top: 8px;
}

.flat-card__footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--flat-border);
  margin-top: auto;
}

.flat-card__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px 16px;
}

.flat-card--horizontal {
  flex-direction: row;
}
.flat-card--horizontal .flat-card__media {
  flex-shrink: 0;
  width: 140px;
  border-bottom: none;
  border-right: 1px solid var(--flat-border);
}
.flat-card--horizontal .flat-card__media img {
  height: 100%;
}
.flat-card--horizontal .flat-card__content {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.flat-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}

.flat-field__label {
  font: var(--flat-label);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.6875rem;
  color: var(--flat-text-secondary);
}

.flat-input {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 40px;
  padding: 0 12px;
  font: var(--flat-text-base);
  color: var(--flat-text);
  background: var(--flat-surface);
  border: 1px solid var(--flat-border);
  border-radius: 0;
  box-shadow: none;
  transition: border-color var(--flat-duration-fast) var(--flat-easing-out);
}
.flat-input input,
.flat-input textarea {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font: inherit;
  color: inherit;
  padding: 0;
  width: 100%;
}
.flat-input input::placeholder,
.flat-input textarea::placeholder {
  color: var(--flat-text-tertiary);
}
.flat-input textarea {
  padding: 10px 0;
  min-height: 80px;
  resize: vertical;
}
.flat-input:focus-within {
  border-color: var(--flat-primary);
}

.flat-input--textarea {
  height: auto;
  align-items: flex-start;
}

.flat-input--underline {
  border: none;
  border-bottom: 2px solid var(--flat-border);
  border-radius: 0;
  padding: 0 0 8px;
}
.flat-input--underline:focus-within {
  border-bottom-color: var(--flat-primary);
}

.flat-input__leading,
.flat-input__trailing {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--flat-text-tertiary);
}

.flat-input__trailing {
  cursor: pointer;
}
.flat-input__trailing:hover {
  color: var(--flat-text);
}

.flat-field__hint {
  font: var(--flat-caption);
  color: var(--flat-text-tertiary);
}

.flat-field--error .flat-input {
  border-color: var(--flat-red);
}
.flat-field--error .flat-field__label {
  color: var(--flat-red);
}
.flat-field--error .flat-field__hint {
  color: var(--flat-red);
}

.flat-field--disabled {
  opacity: 0.38;
  pointer-events: none;
}

.flat-input--sm {
  height: 32px;
  padding: 0 10px;
  font: var(--flat-text-sm);
}

.flat-input--lg {
  height: 48px;
  padding: 0 16px;
  font: var(--flat-text-lg);
}

.flat-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font: var(--flat-caption);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  user-select: none;
  border: none;
  border-radius: var(--flat-radius-sm);
  padding: 2px 8px;
  min-height: 22px;
  vertical-align: middle;
  box-shadow: none;
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
}

.flat-badge--teal {
  background: var(--flat-secondary);
  color: var(--flat-text-on-color);
}

.flat-badge--pink {
  background: var(--flat-accent);
  color: var(--flat-text-on-color);
}

.flat-badge--amber {
  background: var(--flat-amber);
  color: var(--flat-text-on-amber);
}

.flat-badge--purple {
  background: var(--flat-purple);
  color: var(--flat-text-on-color);
}

.flat-badge--green {
  background: var(--flat-green);
  color: var(--flat-text-on-color);
}

.flat-badge--red {
  background: var(--flat-red);
  color: var(--flat-text-on-color);
}

.flat-badge--dark {
  background: var(--flat-text);
  color: var(--flat-bg);
}

.flat-badge--outline {
  background: transparent;
  color: var(--flat-primary);
  border: 1px solid var(--flat-primary);
}

.flat-badge--sm {
  font-size: 0.5625rem;
  padding: 1px 6px;
  min-height: 18px;
}

.flat-badge--lg {
  font-size: 0.8125rem;
  padding: 4px 12px;
  min-height: 28px;
}

.flat-avatar {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  user-select: none;
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
  font: var(--flat-label);
  border: none;
  border-radius: var(--flat-radius-full);
  box-shadow: none;
  width: 40px;
  height: 40px;
}

.flat-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.flat-avatar__initials {
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.flat-avatar__icon {
  width: 22px;
  height: 22px;
}

.flat-avatar--xs {
  width: 28px;
  height: 28px;
  font-size: 0.625rem;
}
.flat-avatar--xs .flat-avatar__icon {
  width: 14px;
  height: 14px;
}

.flat-avatar--sm {
  width: 32px;
  height: 32px;
  font-size: 0.6875rem;
}
.flat-avatar--sm .flat-avatar__icon {
  width: 16px;
  height: 16px;
}

.flat-avatar--lg {
  width: 56px;
  height: 56px;
  font: var(--flat-text-xl);
}
.flat-avatar--lg .flat-avatar__icon {
  width: 28px;
  height: 28px;
}

.flat-avatar--xl {
  width: 72px;
  height: 72px;
  font: var(--flat-text-2xl);
}
.flat-avatar--xl .flat-avatar__icon {
  width: 32px;
  height: 32px;
}

.flat-avatar--teal {
  background: var(--flat-secondary);
}

.flat-avatar--pink {
  background: var(--flat-accent);
}

.flat-avatar--amber {
  background: var(--flat-amber);
  color: var(--flat-text-on-amber);
}

.flat-avatar--purple {
  background: var(--flat-purple);
}

.flat-avatar--green {
  background: var(--flat-green);
}

.flat-avatar--red {
  background: var(--flat-red);
}

.flat-avatar--surface {
  background: var(--flat-bg-alt);
  color: var(--flat-text);
}

.flat-avatar--square {
  border-radius: var(--flat-radius-sm);
}

.flat-avatar__status {
  position: absolute;
  bottom: -1px;
  right: -1px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--flat-bg);
  box-shadow: none;
}
.flat-avatar__status--online {
  background: var(--flat-green);
}
.flat-avatar__status--offline {
  background: var(--flat-border);
}
.flat-avatar__status--busy {
  background: var(--flat-red);
}
.flat-avatar__status--away {
  background: var(--flat-amber);
}

.flat-avatar-group {
  display: flex;
  align-items: center;
}
.flat-avatar-group .flat-avatar {
  margin-left: -8px;
  border: 2px solid var(--flat-bg);
}
.flat-avatar-group .flat-avatar:first-child {
  margin-left: 0;
}

.flat-avatar-group__overflow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--flat-radius-full);
  background: var(--flat-bg-alt);
  color: var(--flat-text-secondary);
  font: var(--flat-label);
  border: 2px solid var(--flat-bg);
  margin-left: -8px;
}

.flat-alert {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  border: none;
  border-radius: var(--flat-radius-sm);
  box-shadow: none;
  font: var(--flat-text-base);
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
}

.flat-alert__icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 1px;
}

.flat-alert__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.flat-alert__title {
  font: var(--flat-label);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0;
}

.flat-alert__body {
  font: var(--flat-text-sm);
  margin: 0;
  opacity: 0.9;
}

.flat-alert__dismiss {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  border-radius: var(--flat-radius-sm);
  padding: 0;
  font-weight: 700;
  opacity: 0.7;
  transition: opacity var(--flat-duration-fast) var(--flat-easing-out);
}
.flat-alert__dismiss:hover {
  opacity: 1;
}

.flat-alert--info {
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
}

.flat-alert--success {
  background: var(--flat-green);
  color: var(--flat-text-on-color);
}

.flat-alert--warning {
  background: var(--flat-amber);
  color: var(--flat-text-on-amber);
}

.flat-alert--error {
  background: var(--flat-red);
  color: var(--flat-text-on-color);
}

.flat-appbar {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 56px;
  padding: 0 16px;
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
  border: none;
  box-shadow: none;
  z-index: 10;
}

.flat-appbar__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  border-radius: var(--flat-radius-sm);
  padding: 0;
  transition: background var(--flat-duration-fast) var(--flat-easing-out);
}
.flat-appbar__nav:hover {
  background: rgba(255, 255, 255, 0.15);
}
.flat-appbar__nav svg {
  width: 20px;
  height: 20px;
}

.flat-appbar__title {
  font: var(--flat-text-lg);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: inherit;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.flat-appbar__spacer {
  flex: 1;
}

.flat-appbar__actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.flat-appbar__action {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  border-radius: var(--flat-radius-sm);
  padding: 0;
  transition: background var(--flat-duration-fast) var(--flat-easing-out);
}
.flat-appbar__action:hover {
  background: rgba(255, 255, 255, 0.15);
}
.flat-appbar__action svg {
  width: 18px;
  height: 18px;
}

.flat-appbar--teal {
  background: var(--flat-secondary);
}

.flat-appbar--pink {
  background: var(--flat-accent);
}

.flat-appbar--amber {
  background: var(--flat-amber);
  color: var(--flat-text-on-amber);
}
.flat-appbar--amber .flat-appbar__nav:hover,
.flat-appbar--amber .flat-appbar__action:hover {
  background: rgba(0, 0, 0, 0.1);
}

.flat-appbar--purple {
  background: var(--flat-purple);
}

.flat-appbar--surface {
  background: var(--flat-surface);
  color: var(--flat-text);
  border-bottom: 1px solid var(--flat-border);
}
.flat-appbar--surface .flat-appbar__nav:hover,
.flat-appbar--surface .flat-appbar__action:hover {
  background: var(--flat-bg-alt);
}

.flat-sidebar {
  display: flex;
  flex-direction: column;
  width: 240px;
  min-height: 100%;
  padding: 16px 8px;
  background: var(--flat-surface);
  border-right: 1px solid var(--flat-border);
  box-shadow: none;
  flex-shrink: 0;
  overflow-y: auto;
}

.flat-sidebar__header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px 16px;
  border-bottom: 1px solid var(--flat-border);
  margin-bottom: 12px;
}

.flat-sidebar__logo {
  font: var(--flat-text-xl);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--flat-text);
  text-decoration: none;
}

.flat-sidebar__section {
  margin-bottom: 8px;
}

.flat-sidebar__section-title {
  font: var(--flat-caption);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--flat-text-tertiary);
  padding: 8px 8px 4px;
}

.flat-sidebar__item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  height: 40px;
  padding: 0 8px;
  border: none;
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  color: var(--flat-text);
  font: var(--flat-text-sm);
  font-weight: 500;
  border-radius: var(--flat-radius-sm);
  transition: background var(--flat-duration-fast) var(--flat-easing-out);
  box-shadow: none;
}
.flat-sidebar__item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.flat-sidebar__item:hover {
  background: var(--flat-bg-alt);
}

.flat-sidebar__item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.flat-sidebar__item-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.flat-sidebar__item--active {
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
}
.flat-sidebar__item--active:hover {
  background: var(--flat-primary-hover);
}

.flat-sidebar__badge {
  margin-left: auto;
  font: var(--flat-caption);
  font-size: 0.625rem;
  font-weight: 500;
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
  padding: 1px 6px;
  border-radius: var(--flat-radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.flat-sidebar__item--active .flat-sidebar__badge {
  background: rgba(255, 255, 255, 0.25);
  color: var(--flat-text-on-color);
}

.flat-sidebar__divider {
  height: 1px;
  background: var(--flat-border);
  margin: 8px 8px;
  border: none;
}

.flat-sidebar__footer {
  margin-top: auto;
  padding: 12px 0 0;
  border-top: 1px solid var(--flat-border);
}

.flat-tabs {
  display: flex;
  border-bottom: 1px solid var(--flat-border);
  gap: 0;
}

.flat-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 20px;
  height: 44px;
  border: none;
  border-bottom: 3px solid transparent;
  background: transparent;
  cursor: pointer;
  color: var(--flat-text-secondary);
  font: var(--flat-label);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: none;
  transition: color var(--flat-duration-fast) var(--flat-easing-out), border-color var(--flat-duration-fast) var(--flat-easing-out);
}
.flat-tab:hover {
  color: var(--flat-text);
}
.flat-tab svg {
  width: 18px;
  height: 18px;
}

.flat-tab--active {
  color: var(--flat-primary);
  border-bottom-color: var(--flat-primary);
}
.flat-tab--active:hover {
  color: var(--flat-primary);
}

.flat-tab__badge {
  font: var(--flat-caption);
  font-size: 0.5625rem;
  font-weight: 500;
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
  padding: 0 5px;
  min-width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--flat-radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.flat-tabs--teal .flat-tab--active {
  color: var(--flat-secondary);
  border-bottom-color: var(--flat-secondary);
}

.flat-tabs--pink .flat-tab--active {
  color: var(--flat-accent);
  border-bottom-color: var(--flat-accent);
}

.flat-tabs--amber .flat-tab--active {
  color: var(--flat-amber);
  border-bottom-color: var(--flat-amber);
}

.flat-tabs--purple .flat-tab--active {
  color: var(--flat-purple);
  border-bottom-color: var(--flat-purple);
}

.flat-tabs--block {
  border-bottom: none;
  background: var(--flat-bg-alt);
}
.flat-tabs--block .flat-tab {
  border-bottom: none;
  color: var(--flat-text-secondary);
}
.flat-tabs--block .flat-tab--active {
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
}

.flat-tabs--block.flat-tabs--teal .flat-tab--active {
  background: var(--flat-secondary);
}

.flat-tabs--block.flat-tabs--pink .flat-tab--active {
  background: var(--flat-accent);
}

.flat-tabs--block.flat-tabs--amber .flat-tab--active {
  background: var(--flat-amber);
  color: var(--flat-text-on-amber);
}

.flat-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--flat-border-strong);
  border-radius: var(--flat-radius-sm);
  background: transparent;
  color: var(--flat-text);
  font: var(--flat-caption);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: none;
  transition: all var(--flat-duration-fast) var(--flat-easing-out);
}
.flat-chip svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}
.flat-chip:hover {
  border-color: var(--flat-primary);
  color: var(--flat-primary);
}
.flat-chip:active {
  transform: scale(0.98);
}
.flat-chip:focus-visible {
  outline: var(--flat-focus-ring);
  outline-offset: var(--flat-focus-offset);
}

.flat-chip--selected {
  background: var(--flat-primary);
  color: var(--flat-text-on-color);
  border-color: var(--flat-primary);
}
.flat-chip--selected:hover {
  background: var(--flat-primary-hover);
  border-color: var(--flat-primary-hover);
  color: var(--flat-text-on-color);
}

.flat-chip--teal {
  background: var(--flat-secondary);
  color: var(--flat-text-on-color);
  border-color: var(--flat-secondary);
}

.flat-chip--pink {
  background: var(--flat-accent);
  color: var(--flat-text-on-color);
  border-color: var(--flat-accent);
}

.flat-chip--amber {
  background: var(--flat-amber);
  color: var(--flat-text-on-amber);
  border-color: var(--flat-amber);
}

.flat-chip--purple {
  background: var(--flat-purple);
  color: var(--flat-text-on-color);
  border-color: var(--flat-purple);
}

.flat-chip--green {
  background: var(--flat-green);
  color: var(--flat-text-on-color);
  border-color: var(--flat-green);
}

.flat-chip__remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  margin-right: -4px;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  padding: 0;
  font-weight: 700;
  font-size: 0.875rem;
  line-height: 1;
  opacity: 0.7;
}
.flat-chip__remove:hover {
  opacity: 1;
}

.flat-chip:disabled,
.flat-chip[disabled] {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

.flat-chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.flat-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--flat-duration-normal) var(--flat-easing-out), visibility var(--flat-duration-normal);
}
.flat-modal-backdrop.flat-modal-backdrop--open {
  opacity: 1;
  visibility: visible;
}

.flat-modal {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(500px, 100vw - 32px);
  max-height: calc(100vh - 48px);
  background: var(--flat-surface);
  color: var(--flat-text);
  border: 1px solid var(--flat-border);
  border-radius: var(--flat-radius-sm);
  box-shadow: none;
  overflow: hidden;
  transform: translateY(16px);
  opacity: 0;
  transition: transform var(--flat-duration-normal) var(--flat-easing-out), opacity var(--flat-duration-normal) var(--flat-easing-out);
}
.flat-modal-backdrop--open .flat-modal {
  transform: translateY(0);
  opacity: 1;
}

.flat-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  gap: 12px;
  border-bottom: 1px solid var(--flat-border);
}

.flat-modal__title {
  font: var(--flat-text-lg);
  color: var(--flat-text);
  margin: 0;
}

.flat-modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--flat-text-secondary);
  cursor: pointer;
  border-radius: var(--flat-radius-sm);
  padding: 0;
  font-weight: 700;
  flex-shrink: 0;
  transition: color var(--flat-duration-fast) var(--flat-easing-out);
}
.flat-modal__close:hover {
  color: var(--flat-text);
}
.flat-modal__close svg {
  width: 18px;
  height: 18px;
}

.flat-modal__body {
  padding: 20px;
  font: var(--flat-text-base);
  overflow-y: auto;
  flex: 1;
}

.flat-modal__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 20px;
  border-top: 1px solid var(--flat-border);
}

.flat-modal--blue .flat-modal__header {
  background: var(--flat-primary);
  border-bottom: none;
}
.flat-modal--blue .flat-modal__header .flat-modal__title {
  color: var(--flat-text-on-color);
}
.flat-modal--blue .flat-modal__header .flat-modal__close {
  color: rgba(255, 255, 255, 0.7);
}
.flat-modal--blue .flat-modal__header .flat-modal__close:hover {
  color: #FFFFFF;
}

.flat-modal--teal .flat-modal__header {
  background: var(--flat-secondary);
  border-bottom: none;
}
.flat-modal--teal .flat-modal__header .flat-modal__title {
  color: var(--flat-text-on-color);
}
.flat-modal--teal .flat-modal__header .flat-modal__close {
  color: rgba(255, 255, 255, 0.7);
}
.flat-modal--teal .flat-modal__header .flat-modal__close:hover {
  color: #FFFFFF;
}

.flat-modal--pink .flat-modal__header {
  background: var(--flat-accent);
  border-bottom: none;
}
.flat-modal--pink .flat-modal__header .flat-modal__title {
  color: var(--flat-text-on-color);
}
.flat-modal--pink .flat-modal__header .flat-modal__close {
  color: rgba(255, 255, 255, 0.7);
}
.flat-modal--pink .flat-modal__header .flat-modal__close:hover {
  color: #FFFFFF;
}

.flat-modal--purple .flat-modal__header {
  background: var(--flat-purple);
  border-bottom: none;
}
.flat-modal--purple .flat-modal__header .flat-modal__title {
  color: var(--flat-text-on-color);
}
.flat-modal--purple .flat-modal__header .flat-modal__close {
  color: rgba(255, 255, 255, 0.7);
}
.flat-modal--purple .flat-modal__header .flat-modal__close:hover {
  color: #FFFFFF;
}

.flat-modal--sm {
  width: min(380px, 100vw - 32px);
}

.flat-modal--lg {
  width: min(640px, 100vw - 32px);
}