.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: fit-content;
  min-height: var(--control-height-md);
  padding: 0.68rem 1rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  transition:
    transform var(--transition-fast),
    color var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}
.button:hover {
  text-decoration: none;
}
.button:active:not(:disabled):not([aria-disabled='true']) {
  transform: translateY(1px);
}
.button:disabled,
.button[aria-disabled='true'] {
  opacity: 0.5;
}
.button--small {
  min-height: var(--control-height-sm);
  padding: 0.5rem 0.75rem;
  font-size: var(--font-size-sm);
}
.button--large {
  min-height: var(--control-height-lg);
  padding: 0.85rem 1.2rem;
}
.button--primary {
  color: #fff;
  background: var(--color-primary);
  box-shadow: 0 0.6rem 1.4rem rgb(79 70 229 / 18%);
}
.button--primary:hover {
  background: var(--color-primary-hover);
}
.button--secondary {
  color: var(--color-text);
  background: var(--color-surface-soft);
  border-color: var(--color-border);
}
.button--secondary:hover,
.button--secondary.is-selected,
.button--secondary[aria-pressed='true'] {
  color: var(--color-primary-strong);
  background: var(--color-primary-soft);
  border-color: color-mix(in srgb, var(--color-primary) 34%, var(--color-border));
}
.button--ghost {
  color: var(--color-muted-strong);
  background: transparent;
}
.button--ghost:hover {
  color: var(--color-text);
  background: var(--color-surface-muted);
}
.button--danger {
  color: #fff;
  background: var(--color-danger);
}
.button--danger:hover {
  background: var(--color-danger-hover);
}
.icon-button {
  display: inline-grid;
  width: var(--control-height-md);
  height: var(--control-height-md);
  place-items: center;
  flex: 0 0 auto;
  color: var(--color-muted-strong);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}
.icon-button:hover {
  color: var(--color-text);
  background: var(--color-surface-soft);
  border-color: var(--color-border-strong);
}
.icon-button:active:not(:disabled) {
  transform: translateY(1px);
}
.icon-button--small {
  width: 2.15rem;
  height: 2.15rem;
}
.icon-button--large {
  width: var(--control-height-lg);
  height: var(--control-height-lg);
}
.icon-button--ghost {
  background: transparent;
  border-color: transparent;
}
.icon-button--danger {
  color: var(--color-danger);
  background: var(--color-danger-soft);
}
.search-field {
  width: 100%;
}
.search-field__control {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: var(--control-height-lg);
  padding: 0 var(--space-3) 0 var(--space-4);
  color: var(--color-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}
.search-field__control:focus-within {
  color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 17%, transparent);
}
.search-field__control input {
  min-width: 0;
  flex: 1;
  color: var(--color-text);
  background: transparent;
  border: 0;
  outline: 0;
}
.search-field__control input::placeholder {
  color: var(--color-muted);
}
.search-field__control input::-webkit-search-cancel-button {
  display: none;
}
.search-field__clear {
  margin-left: auto;
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 2.35rem;
  padding: 0.5rem 0.8rem;
  color: var(--color-muted-strong);
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 700;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast);
}
.filter-chip:hover,
.filter-chip[aria-pressed='true'] {
  color: var(--color-primary-strong);
  background: var(--color-primary-soft);
  border-color: color-mix(in srgb, var(--color-primary) 35%, var(--color-border));
}
.filter-chip__count {
  min-width: 1.35rem;
  padding: 0.1rem 0.38rem;
  text-align: center;
  background: color-mix(in srgb, currentcolor 9%, transparent);
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 1.85rem;
  padding: 0.32rem 0.65rem;
  color: var(--color-muted-strong);
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 750;
  line-height: 1;
  white-space: nowrap;
}
.badge--primary {
  color: var(--color-primary-strong);
  background: var(--color-primary-soft);
}
.badge--info {
  color: var(--color-info);
  background: var(--color-info-soft);
}
.badge--success {
  color: var(--color-success);
  background: var(--color-success-soft);
}
.badge--warning {
  color: var(--color-warning);
  background: var(--color-warning-soft);
}
.badge--danger {
  color: var(--color-danger);
  background: var(--color-danger-soft);
}
.badge--not-started {
  color: var(--color-state-not-started);
  background: var(--color-state-not-started-soft);
}
.badge--studying {
  color: var(--color-state-studying);
  background: var(--color-state-studying-soft);
}
.badge--studied {
  color: var(--color-state-studied);
  background: var(--color-state-studied-soft);
}
.badge--reinforcement {
  color: var(--color-state-reinforcement);
  background: var(--color-state-reinforcement-soft);
}
.badge--consolidated {
  color: var(--color-state-consolidated);
  background: var(--color-state-consolidated-soft);
}
.progress {
  display: grid;
  gap: var(--space-2);
  width: 100%;
}
.progress__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-muted-strong);
  font-size: var(--font-size-sm);
  font-weight: 700;
}
.progress__value {
  color: var(--color-primary-strong);
}
.progress__track {
  width: 100%;
  height: 0.65rem;
  overflow: hidden;
  background: var(--color-surface-muted);
  border-radius: var(--radius-pill);
}
.progress--small .progress__track {
  height: 0.4rem;
}
.progress--large .progress__track {
  height: 0.85rem;
}
.progress__fill {
  display: block;
  width: var(--progress-value);
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-strong));
  border-radius: inherit;
  transition: width var(--transition-medium);
}
.action-menu {
  position: relative;
  display: inline-flex;
}
.action-menu__menu {
  position: absolute;
  z-index: 15;
  top: calc(100% + 0.45rem);
  min-width: 13rem;
  max-height: calc(100vh - 2rem);
  padding: var(--space-2);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-soft);
}
.action-menu__menu--end {
  right: 0;
}
.action-menu__menu--start {
  left: 0;
}
.action-menu__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  min-height: 2.5rem;
  padding: 0.6rem 0.75rem;
  color: var(--color-text-soft);
  text-align: left;
  background: transparent;
  border-radius: var(--radius-xs);
}
.action-menu__item:hover,
.action-menu__item:focus-visible {
  background: var(--color-surface-muted);
}
.action-menu__item--danger {
  color: var(--color-danger);
}

/* M10 — alvos de toque, estados nativos e menus por teclado */
.button,
.icon-button,
.search-field__control,
.filter-chip {
  min-height: var(--touch-target-min);
}

.button:focus-visible,
.icon-button:focus-visible,
.filter-chip:focus-visible,
.action-menu__item:focus-visible {
  position: relative;
  z-index: 1;
}

.icon-button:disabled,
.action-menu__item:disabled {
  opacity: 0.5;
}

.badge {
  border-color: color-mix(in srgb, currentcolor 22%, var(--color-border));
}

.progress__track,
.dashboard-state-row__track {
  border: 1px solid var(--color-border);
}

.action-menu__menu {
  overscroll-behavior: contain;
  background-clip: padding-box;
}

.action-menu__item {
  min-height: var(--touch-target-min);
}

.action-menu__item:disabled {
  cursor: not-allowed;
}

@media (pointer: coarse) {
  .icon-button--small {
    width: var(--touch-target-min);
    height: var(--touch-target-min);
  }

  .filter-chip,
  .action-menu__item,
  .appearance-option,
  .color-picker__option {
    min-height: var(--touch-target-min);
  }
}