/* ===================================================================
   Components — shared UI primitives
   Atomic Object 2026 Design System
   =================================================================== */

/* ── Badges ───────────────────────────────────────────────────────── */
/* AO: sharp corners, uppercase, tight tracking. Accessible dark-accent
   text on light tint backgrounds. */

.badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 0;
  vertical-align: middle;
  margin-left: 6px;
}

.badge-team {
  background: var(--ao-light-red);
  color: var(--ao-darkest-red);
}

.badge-solo {
  background: var(--ao-light-blue);
  color: var(--ao-darkest-blue);
}

.badge-pair {
  background: var(--ao-light-purple);
  color: var(--ao-darkest-purple);
}

.badge-agents {
  background: var(--ao-light-teal);
  color: var(--ao-dark-teal);
}

/* ── Callouts ─────────────────────────────────────────────────────── */

.callout {
  border: 1px solid var(--border);
  background: var(--card);
  padding: 22px 26px;
  border-radius: 0;
  margin: 20px 0 24px;
  font-family: var(--ao-type-body-font-family);
  font-size: var(--ao-type-body-font-size);
  line-height: var(--ao-type-body-sm-line-height);
  font-weight: 400;
  color: var(--ao-body-black);
  box-shadow:
    inset 3px 0 0 var(--primary),
    var(--card-shadow);
}

.callout p {
  margin-bottom: var(--ao-type-body-sm-paragraph-spacing);
}

.callout p:last-child {
  margin-bottom: 0;
}

.callout-purple {
  box-shadow:
    inset 3px 0 0 var(--ao-brand-purple),
    var(--card-shadow);
}

.callout-teal {
  box-shadow:
    inset 3px 0 0 var(--ao-brand-teal),
    var(--card-shadow);
}

.callout-blue {
  box-shadow:
    inset 3px 0 0 var(--ao-brand-blue),
    var(--card-shadow);
}

.callout-amber {
  box-shadow:
    inset 3px 0 0 var(--ao-brand-gold),
    var(--card-shadow);
}

/* ── Compact worked-example cards (running example across phases + Finding Success) ─ */
/* Kicker header matches Related Press section title (press-card-section__header). */

.callout .feature-example-output,
.callout .pd-output {
  margin-top: var(--spacing-large);
  padding: var(--spacing-small);
  background: var(--ao-light-grey);
}

.artifact-name {
  font-style: italic;
}

.feature-example-kicker .artifact-name {
  text-transform: none;
  letter-spacing: 0;
}

.artifact-heading {
  text-transform: none;
  letter-spacing: 0;
}

.artifact-type {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: inherit;
  margin-bottom: 2px;
}

.artifact-heading .artifact-name {
  display: block;
  font-size: 0.9rem;
  line-height: 1.25;
}

.feature-example-output {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.feature-example-output__title,
.pd-output__title {
  margin: 0 0 var(--ao-type-h5-paragraph-spacing);
}

.callout .feature-example-output p,
.callout .pd-output p {
  margin: 0;
}

/* ── Diagrams ─────────────────────────────────────────────────────── */

.diagram-container {
  /* margin: 40px 0 44px; */
  overflow-x: auto;
}

.diagram-container svg {
  display: block;
  width: 100%;
  height: auto;
  font-family: var(--font-heading);
}

.diagram-caption {
  text-align: center;
  font-size: 0.82rem;
  color: var(--foreground);
  font-family: var(--font-serif);
  font-style: italic;
  margin-top: 10px;
}

/* ── Buttons ──────────────────────────────────────────────────────── */
/* Outline CTA from the 2026 design system (raised primary border). */

.ao-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 20px;
  border: 2px solid var(--primary);
  background: transparent;
  color: var(--ao-heading-black);
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color var(--duration-slow) var(--ease-out);
}

.ao-button::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--duration-slow) var(--ease-out);
}

.ao-button:hover,
.ao-button:focus-visible {
  color: var(--ao-white);
  text-decoration: none;
}

.ao-button:hover::before,
.ao-button:focus-visible::before {
  transform: scaleX(1);
}

.ao-button:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
}

@media (max-width: 767px) {
  .ao-button {
    gap: 4px;
    padding: 6px 10px;
  }
}

/* ── Press card grid (Related Press pattern) ───────────────────────── */

.press-card-section + .press-card-section {
  margin-top: var(--spacing-xlarge);
}

.press-card-section__header,
.feature-example-kicker {
  border-bottom: 1px solid var(--border);
}

.press-card-section__header {
  margin-bottom: var(--spacing-large);
}

.feature-example-kicker {
  margin-bottom: var(--spacing-small);
}

.press-card-section__title,
.feature-example-kicker__title,
.pd-label {
  display: inline-block;
  margin: 0 0 -1px;
  padding-bottom: var(--spacing-xsmall);
  border-bottom: 4px solid var(--primary);
}

.press-card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-small);
  margin: 0;
  padding: 0;
  list-style: none;
}

.press-card-grid > li {
  display: flex;
  min-width: 0;
}

.press-card {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--spacing-xsmall);
  min-width: 0;
  min-height: 200px;
  padding: var(--spacing-small);
  background: var(--card);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  color: var(--ao-heading-black);
  text-decoration: none;
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

.press-card:hover,
.press-card:focus-visible {
  color: var(--ao-heading-black);
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.press-card:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
}

.press-card__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xsmall);
}

.press-card__title {
  margin: 0;
}

.press-card__summary {
  margin: 0;
  color: var(--foreground);
}

.press-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  position: relative;
  align-self: flex-start;
  padding-right: 28px;
  font-size: 16px;
  line-height: 18px;
  color: var(--ao-heading-black);
}

.press-card__cta-arrow {
  position: absolute;
  right: 0;
  transition: transform var(--duration-normal) var(--ease-out);
}

.press-card:hover .press-card__cta-arrow,
.press-card:focus-visible .press-card__cta-arrow {
  transform: translateX(3px);
}

@media (min-width: 768px) {
  .press-card-section__header {
    margin-bottom: var(--spacing-medium);
  }

  .press-card-section__title,
  .feature-example-kicker__title,
  .pd-label {
    padding-bottom: var(--spacing-xsmall);
  }

  .press-card-grid {
    grid-template-columns: repeat(2, minmax(240px, 1fr));
    gap: var(--spacing-small);
  }

  .press-card {
    min-height: 240px;
    padding: var(--spacing-small);
  }
}

@media (min-width: 992px) {
  .press-card-section + .press-card-section {
    margin-top: var(--spacing-huge);
  }

  .press-card-section__header {
    margin-bottom: var(--spacing-large);
  }

  .press-card-grid {
    grid-template-columns: repeat(3, minmax(240px, 1fr));
    gap: var(--spacing-medium);
  }

  .press-card {
    min-height: 280px;
  }
}

/* ── Confidential stamp ───────────────────────────────────────────── */

.doc-confidential {
  position: absolute;
  top: 48px;
  right: -42px;
  z-index: 9999;
  transform: rotate(30deg);
  pointer-events: none;
}

.doc-confidential__stamp {
  border: 5px solid var(--destructive);
  color: var(--destructive);
  padding: 8px 48px;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-family: var(--font-serif);
  opacity: 0.85;
  text-align: center;
  white-space: nowrap;
  box-shadow: inset 0 0 0 3px var(--destructive);
  background: rgba(255, 255, 255, 0.08);
}

/* ── Next page link (Next Case Study pattern) ───────────────────────── */

.next-page-link {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--spacing-medium) var(--spacing-small);
  width: 100%;
  margin: 0;
  padding: var(--spacing-huge) max(40px, calc((100% - 1180px) / 2));
  border-top: 1px solid var(--border);
  background: var(--background);
}

.next-page-link__label {
  flex: 1 1 340px;
  min-width: min(100%, 340px);
  margin: 0;
}

.next-page-link__target {
  display: flex;
  flex: 1 1 340px;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-small);
  min-width: min(100%, 340px);
  max-width: 1000px;
  margin-left: auto;
  color: var(--ao-body-black);
  text-decoration: none;
  transition: color var(--duration-normal) var(--ease-out);
}

.next-page-link__target:hover,
.next-page-link__target:focus-visible {
  color: var(--ao-body-black);
  text-decoration: none;
}

.next-page-link__target:hover .next-page-link__title,
.next-page-link__target:focus-visible .next-page-link__title {
  color: var(--ao-dark-red);
}

.next-page-link__target:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 4px;
}

.next-page-link__title {
  flex: 0 0 auto;
  margin: 0;
  font-style: normal;
  text-align: right;
}

.next-page-link__arrow {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  color: var(--primary);
}

.next-page-link__arrow svg {
  display: block;
  width: 34px;
  height: 34px;
}

@media (max-width: 767px) {
  .next-page-link {
    gap: var(--spacing-xsmall);
    padding-top: var(--spacing-xlarge);
  }

  .next-page-link__label,
  .next-page-link__target {
    flex-basis: 100%;
    min-width: 0;
  }

  .next-page-link__target {
    margin-left: 0;
  }
}

/* ── Document footer ──────────────────────────────────────────────── */

.doc-footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--foreground);
}

/* ── Friction / Signal Browser ────────────────────────────────────── */

.friction-browser {
  display: grid;
  grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
}

.friction-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.friction-tab {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 0;
  background: var(--card);
  color: var(--foreground);
  font-family: var(--font-body);
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1.4;
  text-align: left;
  padding: 12px 14px;
  cursor: pointer;
  transition:
    border-color var(--duration-normal) var(--ease-out),
    background var(--duration-normal) var(--ease-out),
    color var(--duration-normal) var(--ease-out);
  display: flex;
  align-items: center;
  gap: 10px;
}

.friction-tab-number {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 0;
  background: var(--ao-light-grey);
  color: var(--ao-heading-black);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.friction-tab.is-active .friction-tab-number {
  background: var(--ao-heading-black);
  color: #ffffff;
}

.friction-tab-label {
  flex: 1 1 auto;
  min-width: 0;
}

.friction-panel-number {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 0;
  background: var(--ao-heading-black);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
}

.friction-tab:hover {
  border-color: var(--ao-grey);
  background: var(--ao-light-grey);
}

.friction-tab:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.friction-tab.is-active {
  border-color: var(--border);
  background: var(--ao-light-grey);
  color: var(--ao-heading-black);
  box-shadow: inset 3px 0 0 var(--primary);
}

.friction-panel-wrap {
  min-height: 100%;
  height: 100%;
  display: flex;
}

.friction-empty,
.friction-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 28px;
  background: var(--card);
  box-shadow: var(--card-shadow);
  flex: 1 1 auto;
}

.friction-empty {
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--foreground);
  background: var(--muted);
}

.friction-empty[hidden] {
  display: none;
}

.friction-panel[hidden] {
  display: none;
}

.friction-panel h3 {
  margin: 0 0 6px;
  color: var(--ao-heading-black);
}

.friction-panel p {
  margin-bottom: 0;
  color: var(--foreground);
}

.friction-panel .friction-panel-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

/* Accordion list spacing — shared by phase-2 planning and failure-mode signals */
.planning-detail {
  margin: 0;
  padding: 0;
  margin-top: 1em;
}

.planning-detail h3 {
  margin-top: 0.25em;
}

.pd-lead {
  margin: 0 0 16px;
}

.friction-impact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.friction-impact-card {
  border-radius: var(--radius);
  background: var(--ao-light-grey);
  padding: 18px 20px;
}

.friction-impact-card.wide {
  grid-column: 1 / -1;
}

.friction-impact-card h4 {
  margin-top: 0;
}

.friction-impact-card > :last-child {
  margin-bottom: 0;
}

@media (max-width: 760px) {
  .friction-browser {
    grid-template-columns: 1fr;
  }

  .friction-empty {
    min-height: 140px;
  }

  .friction-impact-grid {
    grid-template-columns: 1fr;
  }

  .friction-impact-card.wide {
    grid-column: auto;
  }
}

/* ── Appendix (collapsible wrapper) ───────────────────────────────── */

.appendix {
  margin-top: 64px;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  overflow: hidden;
  transition: background var(--duration-slow) var(--ease-out);
}

.appendix[open] {
  background: var(--ao-light-grey);
}

.appendix summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  border-radius: var(--radius);
  background: var(--ao-light-grey);
}

.appendix summary::-webkit-details-marker {
  display: none;
}

.appendix summary::before {
  content: "";
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 8px solid var(--ao-mid-grey);
  flex-shrink: 0;
  transition:
    transform var(--duration-slow) var(--ease-out),
    border-left-color var(--duration-slow) var(--ease-out);
}

.appendix summary:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.appendix[open] summary::before {
  transform: rotate(90deg);
  border-left-color: var(--primary);
}

.appendix-heading {
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.appendix-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--foreground);
  margin-bottom: 0;
}

.appendix-title {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1.02rem;
  font-weight: 500;
  color: var(--ao-heading-black);
  letter-spacing: -0.005em;
}

.appendix-body {
  background: transparent;
  padding: 18px 22px 22px;
}

.appendix-intro {
  margin: 0 0 14px;
  color: var(--foreground);
}