:where(.ds-scope),
:where(.ds-scope *, .ds-scope *::before, .ds-scope *::after) {
  box-sizing: border-box;
}

:where(.ds-scope) {
  min-block-size: 100vh;
  margin: 0;
  color: var(--color-text);
  background: var(--color-canvas);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
}

:where(.ds-scope img, .ds-scope svg, .ds-scope video) {
  display: block;
  max-inline-size: 100%;
  block-size: auto;
}

:where(.ds-scope h1, .ds-scope h2, .ds-scope h3, .ds-scope p) {
  margin-block: 0;
}

:where(.ds-scope h1, .ds-scope h2, .ds-scope h3) {
  line-height: var(--leading-tight);
  text-wrap: balance;
}

:where(.ds-scope h1) { font-size: var(--text-2xl); }
:where(.ds-scope h2) { font-size: var(--text-xl); }
:where(.ds-scope h3) { font-size: var(--text-lg); }

:where(.ds-scope a) {
  color: var(--color-primary);
  font-weight: 650;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

:where(.ds-scope a:hover) { color: var(--color-primary-hover); }

:where(.ds-scope button, .ds-scope input, .ds-scope select, .ds-scope textarea) {
  max-inline-size: 100%;
  color: inherit;
  font: inherit;
}

:where(.ds-scope button, .ds-scope [type="button"], .ds-scope [type="reset"], .ds-scope [type="submit"]) {
  cursor: pointer;
}

:where(.ds-scope :focus-visible) {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

:where(.ds-scope [disabled], .ds-scope [aria-disabled="true"]) {
  cursor: not-allowed;
  opacity: 0.62;
}

.app-container {
  inline-size: min(100% - clamp(1rem, 4vw, 3rem), var(--content-wide));
  margin-inline: auto;
  padding-block: clamp(var(--space-4), 4vw, var(--space-12));
}

.app-container--reading { max-inline-size: var(--content-reading); }

.page-header {
  display: grid;
  gap: var(--space-3);
  margin-block-end: clamp(var(--space-6), 4vw, var(--space-12));
}

.page-header__eyebrow {
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-header__description {
  max-inline-size: 65ch;
  color: var(--color-text-muted);
  font-size: var(--text-lg);
}

.theme-control {
  max-inline-size: 18rem;
  display: grid;
  gap: var(--space-2);
}

.theme-control__label {
  font-size: var(--text-sm);
  font-weight: 750;
}

.stack { display: grid; gap: var(--stack-space, var(--space-4)); }
.stack--tight { --stack-space: var(--space-2); }
.stack--loose { --stack-space: var(--space-8); }

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--cluster-space, var(--space-3));
}

.responsive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: var(--space-4);
}

.button {
  min-block-size: var(--control-min);
  padding: 0.65rem 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--color-on-primary);
  background: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-pill);
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
}

.button:hover {
  color: var(--color-on-primary);
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.button--secondary {
  color: var(--color-primary-hover);
  background: var(--color-surface);
  border-color: var(--color-primary);
}

.button--secondary:hover {
  color: var(--color-on-primary);
  background: var(--color-primary-hover);
}

.button--quiet {
  color: var(--color-primary-hover);
  background: var(--color-surface-muted);
  border-color: transparent;
}

.button--quiet:hover {
  color: var(--color-primary-hover);
  background: var(--color-border);
  border-color: transparent;
}

.button--danger {
  color: var(--color-on-primary);
  background: var(--color-danger);
  border-color: var(--color-danger);
}

.button--danger:hover {
  color: var(--color-on-primary);
  background: var(--color-danger-hover);
  border-color: var(--color-danger-hover);
}

.field { display: grid; gap: var(--space-2); }

.field__label,
.fieldset__legend {
  font-weight: 750;
}

.field__hint {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.field__control {
  inline-size: 100%;
  min-block-size: var(--control-min);
  padding: 0.65rem 0.75rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

textarea.field__control {
  min-block-size: 8rem;
  resize: vertical;
}

.field__control:hover { border-color: var(--color-text-muted); }

.field__control[aria-invalid="true"] {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 1px var(--color-danger);
}

.field__error {
  color: var(--color-danger);
  font-size: var(--text-sm);
  font-weight: 700;
}

.fieldset {
  min-inline-size: 0;
  margin: 0;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.choice {
  min-block-size: var(--control-min);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.choice input {
  inline-size: 1.25rem;
  block-size: 1.25rem;
  flex: 0 0 auto;
}

.card {
  padding: clamp(var(--space-4), 3vw, var(--space-6));
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.card__title { font-size: var(--text-lg); }
.card__description { color: var(--color-text-muted); }

.table-scroll {
  max-inline-size: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.data-table {
  inline-size: 100%;
  min-inline-size: 36rem;
  border-collapse: collapse;
  background: var(--color-surface);
}

.data-table th,
.data-table td {
  padding: var(--space-3) var(--space-4);
  text-align: start;
  border-block-end: 1px solid var(--color-border);
}

.data-table th {
  color: var(--color-text);
  background: var(--color-surface-muted);
  font-size: var(--text-sm);
  font-weight: 750;
}

.data-table tr:last-child td { border-block-end: 0; }

.alert {
  padding: var(--space-4);
  display: grid;
  gap: var(--space-1);
  color: var(--color-text);
  background: var(--color-info-surface);
  border: 1px solid var(--color-info);
  border-inline-start-width: 0.35rem;
  border-radius: var(--radius-sm);
}

.alert--success {
  background: var(--color-success-surface);
  border-color: var(--color-success);
}

.alert--warning {
  background: var(--color-warning-surface);
  border-color: var(--color-warning);
}

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

.alert__title { font-weight: 800; }

.toast {
  position: fixed;
  z-index: 1100;
  inset-block-start: auto;
  inset-block-end: var(--space-4);
  inset-inline-start: auto;
  inset-inline-end: var(--space-4);
  inline-size: min(calc(100% - (2 * var(--space-4))), 28rem);
  max-block-size: calc(100dvh - (2 * var(--space-4)));
  margin: 0;
  overflow-y: auto;
  box-shadow: var(--shadow-card);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast--dismissing {
  opacity: 0;
  transform: translateY(var(--space-2));
}

.toast[hidden] { display: none; }

.app-nav {
  padding: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.app-nav a {
  min-block-size: var(--control-min);
  padding: var(--space-2) var(--space-3);
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.app-nav a:hover,
.app-nav a[aria-current="page"] {
  color: var(--color-on-primary);
  background: var(--color-primary);
}

.empty-state {
  padding: clamp(var(--space-6), 6vw, var(--space-12));
  display: grid;
  justify-items: start;
  gap: var(--space-3);
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
}

.text-muted { color: var(--color-text-muted); }
.measure { max-inline-size: 65ch; }

.visually-hidden {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 40rem) {
  .app-container { inline-size: min(100% - 1rem, var(--content-wide)); }
  .button { inline-size: 100%; }
  .cluster--actions { align-items: stretch; flex-direction: column; }
  .app-nav { align-items: stretch; flex-direction: column; }
  .app-nav a { justify-content: center; }
  .toast { inset-inline: var(--space-2); inline-size: auto; }
}

@media (prefers-reduced-motion: reduce) {
  :where(.ds-scope *, .ds-scope *::before, .ds-scope *::after) {
    scroll-behavior: auto;
    transition-duration: 0.01ms;
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
  }
}

@media print {
  .screen-only { display: none; }
}