/* MSL QA — base styles.
 *
 * Conventions:
 *   - BEM-style class naming (block__element--modifier)
 *   - One component per section; alphabetised
 *   - System fonts; no web fonts in Phase 1
 */

:root {
  --color-bg: #fafaf7;
  --color-surface: #ffffff;
  --color-border: #e1e4e0;
  --color-text: #1c1f1c;
  --color-muted: #5d6360;
  --color-primary: #1f6f43;
  --color-primary-hover: #185635;
  --color-pass: #1f6f43;
  --color-warn: #b97a00;
  --color-fail: #b3261e;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 40px;
  --radius: 6px;
  --font-system:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-system);
  font-size: 16px;
  line-height: 1.45;
  color: var(--color-text);
  background: var(--color-bg);
}

/* topbar */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.topbar__brand {
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* layout */
.content {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-4);
}

/* footer */
.footer {
  position: fixed;
  bottom: 0;
  right: 0;
  padding: var(--space-1) var(--space-3);
  font-size: 12px;
  color: var(--color-muted);
}
.stage--dev .footer::before,
.stage--local .footer::before {
  content: "● ";
  color: var(--color-warn);
}

/* version banner */
.version-banner {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-warn);
  color: #fff;
  padding: var(--space-2) var(--space-3);
  border-radius: 0 0 var(--radius) var(--radius);
  z-index: 100;
}
.version-banner button {
  margin-left: var(--space-2);
  background: #fff;
  color: var(--color-warn);
  border: none;
  padding: 2px 8px;
  border-radius: var(--radius);
  cursor: pointer;
}

/* buttons */
.button {
  font: inherit;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
}
.button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.button--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.button--primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

/* job lookup */
.job-lookup__title {
  margin: 0 0 var(--space-3);
}
.job-lookup__hint {
  color: var(--color-muted);
  margin: 0 0 var(--space-4);
}
.job-lookup__form {
  display: flex;
  gap: var(--space-2);
  max-width: 480px;
}
.job-lookup__input {
  flex: 1;
  font: inherit;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}
.job-lookup__result {
  margin-top: var(--space-4);
  max-width: 480px;
}

/* job card */
.job-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4);
}
.job-card__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}
.job-card__name {
  font-weight: 600;
  font-size: 1.1rem;
}
.job-card__account {
  color: var(--color-muted);
}
.job-card__title {
  margin-bottom: var(--space-3);
}
.job-card__warn {
  font-size: 0.875rem;
  color: var(--color-warn);
  margin: 0 0 var(--space-3);
}
.job-card__actions {
  margin-top: var(--space-3);
}
.job-card__error {
  color: var(--color-fail);
  margin: 0;
}

/* actor modal */
.actor-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.actor-modal__box {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: var(--space-5);
  max-width: 360px;
  width: 90%;
}
.actor-modal__title {
  margin: 0 0 var(--space-2);
}
.actor-modal__hint {
  color: var(--color-muted);
  margin: 0 0 var(--space-4);
}
.actor-modal__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.actor-modal__option {
  font: inherit;
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  cursor: pointer;
  text-align: left;
  font-size: 1rem;
}
.actor-modal__option:hover {
  background: var(--color-bg);
  border-color: var(--color-primary);
}

/* footer link */
.footer__link {
  color: var(--color-muted);
}

/* htmx loading indicator */
.htmx-indicator {
  display: none;
}
.htmx-request .htmx-indicator {
  display: inline;
}

/* screen-reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* badges */
.badge {
  display: inline-block;
  padding: 2px var(--space-2);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge--preprint {
  background: #e8f0fe;
  color: #1a56c4;
}
.badge--pending {
  background: #fff7e0;
  color: var(--color-warn);
}
.badge--approved {
  background: #e6f4ea;
  color: var(--color-pass);
}
.badge--rejected {
  background: #fce8e8;
  color: var(--color-fail);
}

/* alerts */
.alert {
  padding: var(--space-3);
  border-radius: var(--radius);
  margin-bottom: var(--space-4);
  font-size: 0.9rem;
}
.alert--warn {
  background: #fff7e0;
  color: #7a5100;
  border: 1px solid #f5d68a;
}

/* buttons — add danger variant */
.button--danger {
  background: var(--color-fail);
  color: #fff;
  border-color: var(--color-fail);
}
.button--danger:hover:not(:disabled) {
  background: #8f1e17;
}

/* preprint screen */
.preprint__panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
@media (max-width: 700px) {
  .preprint__panels {
    grid-template-columns: 1fr;
  }
}
.preprint__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.preprint__panel-label {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.preprint__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.preprint__back {
  display: inline-block;
  font-size: 0.875rem;
  color: var(--color-muted);
  text-decoration: none;
  margin-bottom: var(--space-2);
}
.preprint__back:hover {
  color: var(--color-text);
}
.preprint__title {
  margin: 0 0 var(--space-1);
  font-size: 1.4rem;
}
.preprint__account {
  color: var(--color-muted);
  font-size: 0.9rem;
}
.preprint__desc {
  margin: var(--space-1) 0 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}
.preprint__actions {
  margin-top: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.preprint__hint {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin: 0;
}

/* paste zone */
.paste-zone {
  position: relative;
  min-height: 300px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.15s, background 0.15s;
}
.paste-zone:hover,
.paste-zone:focus {
  border-color: var(--color-primary);
  outline: none;
}
.paste-zone--dragover {
  border-color: var(--color-primary);
  background: #f0f9f4;
}
.paste-zone--has-image {
  border-style: solid;
  border-color: var(--color-primary);
  min-height: unset;
}
.paste-zone__prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-5);
  min-height: 300px;
  color: var(--color-muted);
}
.paste-zone__icon {
  opacity: 0.4;
}
.paste-zone__text {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
}
.paste-zone__hint {
  margin: 0;
  font-size: 0.8rem;
}
.paste-zone__preview {
  display: block;
  width: 100%;
  max-height: 70vh;
  object-fit: contain;
}

/* results screen */
.results__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.results__back {
  display: inline-block;
  font-size: 0.875rem;
  color: var(--color-muted);
  text-decoration: none;
  margin-bottom: var(--space-2);
}
.results__back:hover {
  color: var(--color-text);
}
.results__title {
  margin: 0 0 var(--space-1);
  font-size: 1.4rem;
}
.results__account {
  color: var(--color-muted);
  font-size: 0.9rem;
}
.results__meta {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}
.results__images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
@media (max-width: 700px) {
  .results__images {
    grid-template-columns: 1fr;
  }
}
.results__panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.results__panel-label {
  margin: 0;
  padding: var(--space-2) var(--space-3);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.results__image {
  display: block;
  width: 100%;
  max-height: 60vh;
  object-fit: contain;
}
.results__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--color-muted);
  font-size: 0.875rem;
  padding: var(--space-4);
  text-align: center;
}
.results__checks {
  margin-bottom: var(--space-4);
}
.results__pending-note {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin: 0;
}
.results__actions {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  margin-bottom: var(--space-5);
}
.results__reject-form {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}
.results__reject-note {
  font: inherit;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  width: 260px;
}
.results__outcome {
  margin-bottom: var(--space-5);
}
.results__outcome-text {
  margin: 0 0 var(--space-3);
  font-size: 1rem;
}
.results__outcome-text--approved {
  color: var(--color-pass);
  font-weight: 600;
}
.results__outcome-text--rejected {
  color: var(--color-fail);
  font-weight: 600;
}
.results__footer {
  font-size: 0.8rem;
  color: var(--color-muted);
  display: flex;
  gap: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}
.results__diff-panel {
  margin-bottom: var(--space-4);
}

/* reference source tabs */
.ref-source {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.ref-source__tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}
.ref-source__tab {
  font: inherit;
  font-size: 0.875rem;
  padding: var(--space-2) var(--space-3);
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.ref-source__tab:hover {
  color: var(--color-text);
}
.ref-source__tab--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}
.ref-source__panel {
  background: var(--color-surface);
}
.ref-source__panel .paste-zone {
  border: none;
  border-radius: 0;
}

/* reference upload zone */
.ref-upload {
  min-height: 240px;
  background: var(--color-surface);
  cursor: pointer;
  overflow: hidden;
  transition: background 0.15s;
  display: flex;
  flex-direction: column;
}
.ref-upload:hover {
  background: var(--color-bg);
}
.ref-upload__prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4);
  min-height: 240px;
  color: var(--color-muted);
}
.ref-upload__btn {
  margin-top: var(--space-2);
  font-size: 0.875rem;
}
.ref-upload__crop-note {
  font-size: 0.8rem;
  color: var(--color-muted);
  text-align: center;
  padding: var(--space-2) var(--space-3);
  margin: 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

/* Box stub */
.ref-box-stub {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  padding: var(--space-4);
  color: var(--color-muted);
  text-align: center;
}
.ref-box-stub__text {
  margin: 0 0 var(--space-2);
  font-size: 0.9rem;
}
.ref-box-stub__hint {
  margin: 0;
  font-size: 0.8rem;
}

/* check rows in results */
.check-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius);
  margin-bottom: var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}
.check-row--pass {
  border-left: 3px solid var(--color-pass);
}
.check-row--fail {
  border-left: 3px solid var(--color-fail);
}
.check-row__icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  width: 1.2em;
  text-align: center;
}
.check-row--pass .check-row__icon {
  color: var(--color-pass);
}
.check-row--fail .check-row__icon {
  color: var(--color-fail);
}
.check-row__label {
  font-weight: 600;
  min-width: 140px;
}
.check-row__detail {
  flex: 1;
  color: var(--color-muted);
  font-size: 0.875rem;
}

/* image wrapper with canvas highlight overlay */
.image-wrapper {
  position: relative;
  display: block;
  line-height: 0;
}
.image-canvas {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

/* OCR change rows */
.ocr-changes {
  margin-top: var(--space-3);
}
.ocr-changes__heading {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin: 0 0 var(--space-2);
}
.ocr-change {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  margin-bottom: var(--space-1);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: 0.875rem;
}
.ocr-change--locatable {
  cursor: pointer;
}
.ocr-change--locatable:hover {
  border-color: var(--color-primary);
  background: #f0f9f4;
}
.ocr-change--selected {
  border-color: #ff3b30;
  background: #fff5f5;
}
.ocr-change--capture {
  border-left: 3px solid var(--color-primary);
}
.ocr-change--reference {
  border-left: 3px solid var(--color-warn);
}
.ocr-change--selected.ocr-change--capture,
.ocr-change--selected.ocr-change--reference {
  border-left-color: #ff3b30;
}
.ocr-change__src {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  min-width: 70px;
}
.ocr-change__text {
  flex: 1;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9rem;
}
.ocr-change--capture .ocr-change__text {
  color: var(--color-primary);
}
.ocr-change--reference .ocr-change__text {
  color: var(--color-warn);
}
.ocr-change__hint {
  font-size: 0.75rem;
  color: var(--color-muted);
  white-space: nowrap;
}
.ocr-change--locatable:hover .ocr-change__hint {
  color: var(--color-primary);
}

/* OCR diff block */
.ocr-diff {
  margin-top: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.ocr-diff__summary {
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-muted);
  background: var(--color-bg);
  user-select: none;
}
.ocr-diff__summary:hover {
  color: var(--color-text);
}
.ocr-diff__body {
  margin: 0;
  padding: var(--space-3);
  font-size: 0.8rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  max-height: 300px;
  overflow-y: auto;
}