:where(.btn, .btn-login, .btn-register, .navbar__cta, .hero__actions a) {
  min-height: 2.75rem;
  border-radius: var(--radius-sm);
  transition:
    color var(--duration-fast) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard),
    opacity var(--duration-fast) var(--ease-standard);
}

.btn {
  min-height: 2.75rem;
  padding: 0.625rem 1rem;
  gap: var(--space-2);
  overflow: visible;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 650;
  line-height: 1;
  letter-spacing: 0.01em;
  text-transform: none;
  white-space: nowrap;
}

.btn::after {
  display: none;
}

.btn:hover {
  transform: none;
}

.btn:active {
  transform: none;
  filter: brightness(0.94);
}

.btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-xs);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-text-inverse);
}

.btn-secondary {
  background: var(--color-surface-raised);
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover,
.btn-outline:hover,
.btn-icon:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.btn-outline,
.btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.btn-ghost {
  border-color: transparent;
}

.btn-danger {
  background: var(--color-danger);
  border-color: var(--color-danger);
  color: #160605;
}

.btn-success {
  background: var(--color-success);
  border-color: var(--color-success);
  color: #05150c;
}

.btn-sm {
  min-height: 2.25rem;
  padding: 0.45rem 0.75rem;
  font-size: var(--font-size-xs);
}

.btn-icon {
  width: 2.75rem;
  min-width: 2.75rem;
  height: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.btn-icon svg,
.btn svg {
  width: var(--icon-sm);
  height: var(--icon-sm);
}

:where(.btn, .btn-login, .btn-register)[disabled],
:where(.btn, .btn-login, .btn-register)[aria-disabled='true'] {
  cursor: not-allowed;
  opacity: 0.48;
  filter: saturate(0.55);
}

:where(.btn, .btn-login, .btn-register).is-loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}

:where(.btn, .btn-login, .btn-register).is-loading::before {
  content: '';
  position: absolute;
  inset: 50% auto auto 50%;
  width: 1rem;
  height: 1rem;
  margin: -0.5rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  color: var(--color-text-inverse);
  animation: ui-spin 650ms linear infinite;
}

@keyframes ui-spin {
  to {
    transform: rotate(1turn);
  }
}

:where(
  .form-input,
  .search-input,
  .date-input,
  input[type='text'],
  input[type='email'],
  input[type='password'],
  input[type='tel'],
  input[type='date'],
  input[type='time'],
  input[type='number'],
  select,
  textarea
) {
  width: 100%;
  min-height: 2.875rem;
  padding: 0.65rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-raised);
  color: var(--color-text);
  line-height: 1.35;
  transition:
    border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard);
}

:where(.form-input, input, select, textarea):hover:not(:disabled) {
  border-color: var(--color-border-strong);
}

:where(.form-input, input, select, textarea):focus {
  border-color: var(--color-focus);
  outline: none;
  box-shadow: var(--shadow-focus);
}

textarea {
  min-height: 7rem;
  resize: vertical;
}

.form-group {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-label,
label:not(.checkbox-label) {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
}

.input-wrapper {
  position: relative;
}

.input-icon {
  position: absolute;
  z-index: var(--z-raised);
  top: 50%;
  left: var(--space-4);
  display: inline-flex;
  width: var(--icon-md);
  height: var(--icon-md);
  align-items: center;
  justify-content: center;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.input-icon svg {
  width: var(--icon-sm);
  height: var(--icon-sm);
}

.input-wrapper .form-input {
  padding-left: 2.8rem;
}

.input-wrapper--password .form-input {
  padding-right: 5rem;
}

.password-toggle {
  position: absolute;
  z-index: var(--z-raised);
  top: 50%;
  right: var(--space-2);
  min-width: 3.75rem;
  min-height: 2.25rem;
  padding: 0 var(--space-2);
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  transform: translateY(-50%);
  cursor: pointer;
}

.password-toggle:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.card,
.section-block,
.analytics-chart-card,
.analytics-kpi-card,
.reward-card,
.client-detail-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-xs);
}

.card:hover {
  transform: none;
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.table-container {
  width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

table {
  min-width: 44rem;
  border-collapse: separate;
  border-spacing: 0;
}

th {
  position: sticky;
  top: 0;
  z-index: var(--z-raised);
  padding: 0.75rem 1rem;
  background: var(--color-surface-raised);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: left;
  text-transform: uppercase;
}

td {
  height: 3.5rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  vertical-align: middle;
}

tbody tr {
  transition: background-color var(--duration-fast) var(--ease-standard);
}

tbody tr:hover {
  background: var(--color-accent-soft);
}

:where(.badge, .status-badge, .vip-badge-shiny) {
  display: inline-flex;
  min-height: 1.625rem;
  align-items: center;
  gap: var(--space-1);
  padding: 0.2rem 0.55rem;
  border: 1px solid currentColor;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 650;
  line-height: 1;
  white-space: nowrap;
}

.modal-overlay {
  z-index: var(--z-overlay);
  padding: var(--space-4);
  background: var(--color-overlay);
  backdrop-filter: blur(5px);
}

.modal,
.modal-card {
  width: min(100%, 40rem);
  max-height: min(90vh, 50rem);
  max-height: min(90dvh, 50rem);
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
}

.modal-lg {
  width: min(100%, 58rem);
}

.modal-header,
.modal-body,
.modal-footer {
  padding: var(--space-5) var(--space-6);
}

.modal-header {
  position: sticky;
  top: 0;
  z-index: var(--z-raised);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.modal-footer {
  position: sticky;
  bottom: 0;
  z-index: var(--z-raised);
  margin-top: 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.modal-close {
  display: inline-flex;
  width: 2.5rem;
  height: 2.5rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.modal-close:hover {
  transform: none;
  border-color: var(--color-border);
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.empty-state {
  min-height: 14rem;
  padding: var(--space-10) var(--space-6);
  display: grid;
  place-items: center;
  align-content: center;
  gap: var(--space-3);
  text-align: center;
}

.empty-state h4 {
  font-family: var(--font-sans);
  font-size: var(--font-size-lg);
  font-weight: 700;
  letter-spacing: var(--letter-spacing-tight);
}

.empty-icon {
  display: inline-flex;
  width: 3.25rem;
  height: 3.25rem;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 1.5rem;
}

.loading-state {
  min-height: 10rem;
  display: grid;
  place-items: center;
  color: var(--color-text-muted);
}

.ui-toast-region {
  position: fixed;
  z-index: var(--z-toast);
  right: var(--space-5);
  bottom: var(--space-5);
  display: grid;
  width: min(24rem, calc(100vw - 2rem));
  gap: var(--space-2);
  pointer-events: none;
}

.ui-toast {
  padding: 0.8rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-raised);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  animation: ui-toast-in var(--duration-normal) var(--ease-enter);
  pointer-events: auto;
}

.star-interactive {
  display: inline-flex;
  width: 2.25rem;
  height: 2.25rem;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  font-size: 1.35rem;
  cursor: pointer;
}

.star-interactive:hover,
.star-interactive:focus-visible {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.toast-close {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: inherit;
}

.search-results-dropdown {
  z-index: var(--z-dropdown);
  max-height: 20rem;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-raised);
  box-shadow: var(--shadow-md);
}

.alert {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-info);
  border-radius: var(--radius-sm);
  background: var(--color-info-soft);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.alert-error {
  border-color: var(--color-danger);
  background: var(--color-danger-soft);
}

.login-page,
.error-page {
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  padding: var(--space-6);
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 20% 15%, var(--color-accent-soft), transparent 28rem),
    var(--color-background);
}

.login-page .login-card,
.error-card {
  width: min(100%, 30rem);
  padding: var(--space-8);
  display: grid;
  gap: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.login-page form {
  display: grid;
  gap: var(--space-3);
}

.login-page form .btn {
  margin-top: var(--space-2);
}

.error-card {
  justify-items: start;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.error-card code {
  padding: 0.15rem 0.35rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-surface-sunken);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.error-code {
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: clamp(4rem, 14vw, 7rem);
  line-height: 0.85;
}

.error-card h1,
.login-page h1 {
  font-size: var(--font-size-2xl);
}

@keyframes ui-toast-in {
  from {
    opacity: 0;
    transform: translateY(0.5rem);
  }
}

/* Product hierarchy */
.eyebrow,
.page-kicker {
  color: var(--tenant-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

.page-header,
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-5);
}

.page-header__copy,
.section-header__copy {
  display: grid;
  gap: var(--space-1);
}

.page-header__title,
.section-header__title,
.section-block-title,
.booking-step h2,
.modal-header h2,
.modal-header h3,
.empty-state h4,
.login-title {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-tight);
  text-transform: none;
}

.page-header__description,
.section-header__description {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.hero__title,
.hero__title-accent,
.product-hero__title {
  font-family: var(--font-display);
  font-weight: var(--font-weight-display);
  letter-spacing: -0.045em;
  line-height: 0.98;
  text-transform: none;
}

/* Semantic badges */
.badge-success {
  border-color: color-mix(in srgb, var(--color-success) 55%, transparent);
  background: var(--color-success-soft);
  color: var(--color-success);
}

.badge-warning {
  border-color: color-mix(in srgb, var(--color-warning) 55%, transparent);
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.badge-danger {
  border-color: color-mix(in srgb, var(--color-danger) 55%, transparent);
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.badge-info {
  border-color: color-mix(in srgb, var(--color-info) 55%, transparent);
  background: var(--color-info-soft);
  color: var(--color-info);
}

.badge-primary,
.badge-accent {
  border-color: color-mix(in srgb, var(--tenant-primary) 55%, transparent);
  background: var(--tenant-primary-soft);
  color: var(--tenant-primary);
}

/* Field feedback */
.field-help,
.field-error,
.field-success {
  margin: 0;
  font-size: var(--font-size-xs);
  line-height: 1.4;
}

.field-help {
  color: var(--color-text-muted);
}

.field-error {
  color: var(--color-danger);
}

.field-success {
  color: var(--color-success);
}

:where(input, select, textarea)[aria-invalid='true'],
.is-invalid {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px var(--color-danger-soft);
}

/* Shared loading and error states */
.skeleton {
  overflow: hidden;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(100deg, transparent 20%, rgb(255 255 255 / 7%) 42%, transparent 64%),
    var(--color-surface-raised);
  background-size: 220% 100%;
  animation: ui-skeleton 1.4s var(--ease-standard) infinite;
}

.skeleton-text {
  width: min(100%, 18rem);
  height: 0.875rem;
}

.skeleton-title {
  width: min(70%, 14rem);
  height: 1.5rem;
}

.skeleton-card {
  min-height: 8rem;
}

.error-state {
  min-height: 14rem;
  padding: var(--space-10) var(--space-6);
  display: grid;
  place-items: center;
  align-content: center;
  gap: var(--space-3);
  text-align: center;
}

.error-state__icon {
  width: 3.25rem;
  height: 3.25rem;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.error-state p,
.empty-state p {
  max-width: 34rem;
  margin: 0;
  color: var(--color-text-secondary);
}

.sticky-actions {
  position: sticky;
  z-index: var(--z-sticky);
  bottom: 0;
  padding: var(--space-4);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  border-top: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-surface) 94%, transparent);
  backdrop-filter: blur(10px);
}

@keyframes ui-skeleton {
  to {
    background-position: -220% 0;
  }
}