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

html {
  min-width: 320px;
  background: var(--background-base);
  scroll-behavior: smooth;
}

body.premium-ui {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--text-primary);
  background: var(--background-base);
  font-family: var(--font-sans);
  font-size: var(--font-body);
  font-weight: 400;
  line-height: var(--line-body);
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Retire decorative gradients from the legacy compatibility layers. */
.premium-ui * {
  background-image: none !important;
}

.premium-ui :where(h1, h2, h3, h4, h5, h6, p, dl, dd, figure) {
  letter-spacing: 0;
}

.premium-ui :where(h1, h2, h3, h4) {
  color: var(--text-primary);
  line-height: var(--line-tight);
}

.premium-ui :where(p, dd, li, small, span, strong, a, button, label) {
  overflow-wrap: anywhere;
}

.premium-ui img,
.premium-ui video,
.premium-ui canvas,
.premium-ui svg {
  max-width: 100%;
}

.premium-ui a {
  color: var(--action);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.premium-ui :where(a, button, summary, select, input[type="checkbox"], input[type="radio"]) {
  cursor: pointer;
}

.premium-ui :where(button, input, select, textarea) {
  min-width: 0;
  color: var(--text-primary);
  font: inherit;
  letter-spacing: 0;
}

.premium-ui :where(input:not([type="checkbox"]):not([type="radio"]), select, textarea) {
  width: 100%;
  min-height: 40px;
  padding: 8px 11px;
  background: var(--surface-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-subtle);
  transition: border-color var(--motion-fast) var(--easing-standard), box-shadow var(--motion-fast) var(--easing-standard);
}

.premium-ui textarea {
  min-height: 96px;
  resize: vertical;
}

.premium-ui :where(input, select, textarea):focus-visible {
  border-color: var(--focus-ring);
  outline: 3px solid color-mix(in srgb, var(--focus-ring) 22%, transparent);
  outline-offset: 1px;
}

.premium-ui :where(a, button, summary, [tabindex]):focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus-ring) 30%, transparent);
  outline-offset: 2px;
}

.premium-ui :where(button, input, select, textarea):disabled,
.premium-ui [aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
}

.premium-ui ::selection {
  color: #ffffff;
  background: var(--brand-primary);
}

.premium-ui code,
.premium-ui pre,
.premium-ui .technical-value {
  font-family: var(--font-mono);
}

.premium-ui .muted {
  color: var(--text-tertiary);
}

.premium-ui .empty-state,
.premium-ui .operator-clear-state,
.premium-ui .compact-empty {
  display: grid;
  min-height: 128px;
  place-content: center;
  gap: var(--space-8);
  padding: var(--space-32);
  color: var(--text-secondary);
  background: var(--surface-secondary);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  text-align: center;
}

.premium-ui .empty-state :where(h1, h2, h3, p),
.premium-ui .operator-clear-state :where(strong, p) {
  margin: 0;
}

.premium-ui .alert,
.premium-ui .notice-panel,
.premium-ui .lifecycle-notice,
.premium-ui .operator-result {
  padding: var(--space-12) var(--space-16);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--info);
  border-radius: var(--radius-sm);
  background: var(--info-soft);
}

.premium-ui .alert-error,
.premium-ui .is-error {
  border-left-color: var(--danger);
  background: var(--danger-soft);
}

.premium-ui details > summary {
  color: var(--text-secondary);
  font-weight: 600;
}

.premium-ui .premium-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.premium-ui .skip-link:focus {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  width: auto;
  height: auto;
  padding: 8px 12px;
  overflow: visible;
  clip: auto;
  color: #ffffff;
  background: var(--text-primary);
  border-radius: var(--radius-sm);
  white-space: normal;
}

.premium-ui :where(.job-progress-bar > span, .publish-progress-bar > span, .hd-replace-progress-bar > span) {
  background: var(--action) !important;
}

.premium-ui .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}