:root {
  --color-bg: #fafaf8;
  --color-bg-alt: #ffffff;
  --color-text: #1f1f1f;
  --color-text-dim: #5a5a5a;
  --color-accent: #3a7a78;
  --color-accent-dim: #6ea9a7;
  --color-border: #d8d6d0;
  --color-warn: #c77f2a;
  --color-incomplete: #e8d4a6;
  --radius: 8px;
  --gap: 16px;
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  --font-size-body: 17px;
  --font-size-small: 15px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --tap-target: 44px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #141414;
    --color-bg-alt: #1e1e1e;
    --color-text: #e8e8e8;
    --color-text-dim: #a0a0a0;
    --color-border: #333333;
  }
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-stack);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-normal);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-weight: var(--font-weight-medium);
  line-height: 1.3;
  margin: 0 0 12px;
}

h1 { font-size: 1.4em; }
h2 { font-size: 1.2em; }
h3 { font-size: 1.05em; }

p { margin: 0 0 12px; }

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover { color: var(--color-accent-dim); }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.app {
  max-width: 600px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  padding: 12px 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.app-header h1 { margin: 0; }

.lang-toggle {
  min-height: var(--tap-target);
  min-width: var(--tap-target);
  padding: 6px 14px;
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
}

.lang-toggle:hover,
.lang-toggle:focus-visible {
  border-color: var(--color-accent);
}

.intro {
  color: var(--color-text-dim);
}

.progress-bar {
  position: relative;
  width: 100%;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar > span {
  display: block;
  height: 100%;
  background: var(--color-accent);
  transition: width 200ms ease;
}

@media (prefers-reduced-motion: reduce) {
  .progress-bar > span { transition: none; }
}

.progress-label {
  font-size: var(--font-size-small);
  color: var(--color-text-dim);
  margin-bottom: 8px;
}

.instrument-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card {
  display: block;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  color: var(--color-text);
  text-decoration: none;
  min-height: var(--tap-target);
}

.card:hover,
.card:focus-visible {
  border-color: var(--color-accent);
}

.card h2 {
  color: var(--color-accent);
  margin-bottom: 6px;
}

.card p {
  margin: 4px 0;
  color: var(--color-text-dim);
  font-size: var(--font-size-small);
}

.draft-status {
  color: var(--color-warn);
  font-size: var(--font-size-small);
}

.draft-status a {
  margin-left: 8px;
  color: var(--color-text-dim);
  font-size: var(--font-size-small);
}

.badge-warn {
  display: inline-block;
  color: var(--color-warn);
  margin-left: 4px;
  font-size: 0.9em;
}

.verify-note {
  color: var(--color-warn);
  font-size: var(--font-size-small);
}

.item-card {
  max-width: 540px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.item-stem {
  font-size: 1.1em;
  line-height: 1.25em;
  margin: 0;
}

.show-original {
  align-self: flex-start;
  background: none;
  border: none;
  padding: 4px 0;
  color: var(--color-accent);
  text-decoration: underline;
  font-size: var(--font-size-small);
  min-height: auto;
}

.original {
  font-style: italic;
  color: var(--color-text-dim);
  font-size: var(--font-size-small);
  padding-top: 8px;
  margin: 0;
}

.response-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.response-button {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  text-align: left;
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
}

.response-button:hover,
.response-button:focus-visible {
  border-width: 2px;
  padding: 11px 15px;
}

.response-button.selected {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

@media (min-width: 640px) {
  .response-list.grid-2x2 {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .response-list.grid-2x2 > li {
    flex: 1 1 calc(50% - 4px);
    min-width: 200px;
  }
  .response-list.scale-7 {
    flex-direction: row;
    flex-wrap: nowrap;
  }
  .response-list.scale-7 > li {
    flex: 1;
  }
  .response-list.scale-7 .response-button {
    text-align: center;
    padding: 12px 6px;
  }
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding-top: var(--gap);
  border-top: 1px solid var(--color-border);
}

.review-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.review-list li {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  font-size: var(--font-size-small);
}

.review-list li.unanswered {
  background: var(--color-incomplete);
  color: #1f1f1f;
}

.results {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.results-total {
  font-size: 3em;
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  line-height: 1.1;
  margin: 0;
}

.tier-label {
  font-size: 1.25em;
  font-weight: var(--font-weight-medium);
  margin: 0 0 4px;
}

.tier-copy {
  max-width: 60ch;
  color: var(--color-text);
  margin: 0;
}

.subscale-row {
  display: grid;
  grid-template-columns: 1fr 2fr auto;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
  font-size: var(--font-size-small);
}

.subscale-row > .bar {
  height: 8px;
  background: var(--color-accent-dim);
  border-radius: 4px;
  min-width: 4px;
}

.disclaimer {
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 16px;
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  background: var(--color-bg-alt);
}

.translation-caveat {
  border: 1px solid var(--color-text-dim);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: var(--font-size-small);
  color: var(--color-text-dim);
  background: var(--color-bg-alt);
}

.priming-note {
  border: 1px solid var(--color-warn);
  border-radius: var(--radius);
  padding: 12px;
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.results-pre {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: var(--font-size-small);
  line-height: 1.4;
  white-space: pre;
}

.action-row {
  display: flex;
  flex-direction: row;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 479px) {
  .action-row {
    flex-direction: column;
  }
}

.action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap-target);
  padding: 12px 16px;
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  text-decoration: none;
  font-size: var(--font-size-body);
}

.action-button:hover,
.action-button:focus-visible {
  border-width: 2px;
  padding: 11px 15px;
}

.action-button.primary {
  background: var(--color-accent);
  color: #ffffff;
}

.banner-warn {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 12px 16px;
  background: var(--color-incomplete);
  color: #1f1f1f;
  border-bottom: 1px solid var(--color-warn);
  text-align: center;
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
  opacity: 0;
  animation: banner-in 180ms ease-out forwards;
}

@keyframes banner-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.utilities {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.footer-privacy {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-dim);
  font-size: var(--font-size-small);
}

.footer-privacy p { margin: 4px 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* Runtime addendum: classes introduced by runner/picker/results markup.
   All styles reuse existing tokens — no new colors, no new motion. */

.picker {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.picker-card {
  display: block;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  color: var(--color-text);
  text-decoration: none;
  min-height: var(--tap-target);
}

.picker-card:hover,
.picker-card:focus-visible {
  border-color: var(--color-accent);
}

.picker-title {
  color: var(--color-accent);
  font-size: 1.2em;
  font-weight: var(--font-weight-medium);
  margin: 0 0 6px;
}

.picker-name {
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
}

.picker-meta {
  color: var(--color-text-dim);
  font-size: var(--font-size-small);
  margin: 4px 0;
}

.picker-disclaimer {
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 16px;
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  background: var(--color-bg-alt);
  margin-top: var(--gap);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap-target);
  padding: 12px 16px;
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  text-decoration: none;
  font-size: var(--font-size-body);
  font-family: inherit;
  cursor: pointer;
}

.btn:hover,
.btn:focus-visible {
  border-width: 2px;
  padding: 11px 15px;
}

.btn[disabled],
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-resume {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

.btn-start {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-color: var(--color-accent);
}

.btn-nav {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-color: var(--color-accent);
  min-width: 96px;
}

.btn-submit {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
  width: 100%;
}

@media (min-width: 480px) {
  .btn-submit { width: auto; min-width: 160px; }
}

.btn-secondary {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-color: var(--color-text-dim);
}

.resume {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-dim);
  font-size: var(--font-size-small);
}

.progress {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--gap);
}

.progress-text {
  font-size: var(--font-size-small);
  color: var(--color-text-dim);
}

.progress-bar-fill {
  display: block;
  height: 100%;
  background: var(--color-accent);
  transition: width 200ms ease;
}

@media (prefers-reduced-motion: reduce) {
  .progress-bar-fill { transition: none; }
}

.item-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.item-stem-original {
  font-style: italic;
  color: var(--color-text-dim);
  font-size: var(--font-size-small);
  padding-top: 8px;
  margin: 0;
}

.response-num {
  display: inline-block;
  min-width: 1.5em;
  margin-right: 8px;
  color: var(--color-text-dim);
  font-variant-numeric: tabular-nums;
  font-weight: var(--font-weight-medium);
}

.response-button.selected .response-num { color: #ffffff; }

.response-label { display: inline; }

.review-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: baseline;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  font-size: var(--font-size-small);
}

.review-row-missing {
  background: var(--color-incomplete);
  color: #1f1f1f;
  border-color: var(--color-warn);
}

.review-num {
  color: var(--color-text-dim);
  font-variant-numeric: tabular-nums;
  font-weight: var(--font-weight-medium);
}

.review-stem {
  color: var(--color-text);
  line-height: 1.35;
}

.review-choice {
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
}

.review-hint {
  grid-column: 1 / -1;
  color: var(--color-text-dim);
  font-size: var(--font-size-small);
  margin-top: 4px;
}

.results-title {
  font-size: 1.2em;
  font-weight: var(--font-weight-medium);
  margin: 0 0 4px;
}

.results-total-num {
  font-size: 3em;
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  line-height: 1;
}

.results-total-sep {
  color: var(--color-text-dim);
  margin: 0 4px;
}

.results-total-max {
  color: var(--color-text-dim);
  font-size: 1.25em;
}

.results-tier {
  font-size: 1.25em;
  font-weight: var(--font-weight-medium);
  margin: 0 0 4px;
}

.results-tier-para {
  max-width: 60ch;
  color: var(--color-text);
  margin: 0;
}

.subscales {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.subscale-label {
  color: var(--color-text);
  font-size: var(--font-size-small);
}

.subscale-value {
  color: var(--color-text-dim);
  font-size: var(--font-size-small);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.subscale-bar-cell {
  display: flex;
  align-items: center;
}

.subscale-bar {
  width: 100%;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}

.subscale-bar-fill {
  display: block;
  height: 100%;
  background: var(--color-accent-dim);
  border-radius: 4px;
}

.disclaimer-main {
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 16px;
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  background: var(--color-bg-alt);
}

.disclaimer-priming {
  border: 1px solid var(--color-warn);
  border-radius: var(--radius);
  padding: 12px;
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.disclaimer-translation {
  border: 1px solid var(--color-text-dim);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: var(--font-size-small);
  color: var(--color-text-dim);
  background: var(--color-bg-alt);
}

.results-nav {
  display: flex;
  flex-direction: row;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 479px) {
  .results-nav { flex-direction: column; }
}