/*
 * Dynamic Solutions — interface styles.
 *
 * SRS UX-001 WCAG 2.2 AA, UX-005 never colour alone, UX-006 RTL,
 * SRS 10.4 responsive down to 320px.
 *
 * Two constraints shape this sheet. Everything directional uses CSS logical
 * properties (inline-start rather than left), so switching `dir` on the root
 * mirrors the whole layout without a second stylesheet. And every status cue
 * is carried by a text label and a glyph as well as a colour, so the sheet can
 * be rendered in monochrome and lose nothing.
 */

:root {
  --ink: #16191f;
  --ink-muted: #5a6270;
  --ink-inverse: #ffffff;

  --surface: #ffffff;
  --surface-sunken: #f4f6f9;
  --surface-raised: #ffffff;

  --line: #d7dce4;
  --line-strong: #aeb6c2;

  --accent: #1d4ed8;
  --accent-dark: #1739a8;
  --accent-wash: #eef2ff;

  --positive: #146c43;
  --positive-wash: #e8f5ee;
  --caution: #8a5300;
  --caution-wash: #fdf3e3;
  --critical: #b3261e;
  --critical-wash: #fdecea;
  --info: #1d4ed8;
  --info-wash: #eef2ff;

  --radius: 8px;
  --radius-lg: 14px;
  --gap: 1rem;
  --measure: 68ch;

  --shadow: 0 1px 2px rgb(22 25 31 / 8%), 0 8px 24px rgb(22 25 31 / 6%);

  color-scheme: light;
}

/* A dark palette is a token swap, not a second design. */
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8ebf0;
    --ink-muted: #a2abb9;
    --surface: #14171c;
    --surface-sunken: #0f1216;
    --surface-raised: #1b1f26;
    --line: #2c323c;
    --line-strong: #434b58;
    --accent: #7ea2ff;
    --accent-dark: #a5bcff;
    --accent-wash: #1a2340;
    --positive: #7bd6a6;
    --positive-wash: #12281d;
    --caution: #f0bd6a;
    --caution-wash: #2d2210;
    --critical: #ff9d95;
    --critical-wash: #331714;
    --info: #7ea2ff;
    --info-wash: #1a2340;
    --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 8px 24px rgb(0 0 0 / 30%);
    color-scheme: dark;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--surface-sunken);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
    'Noto Sans Arabic', 'Noto Nastaliq Urdu', sans-serif;
}

/* WCAG 2.4.11: a focus ring that is always visible against both surfaces. */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

/* WCAG 2.3.3: respect a stated preference for less motion. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ------------------------------------------------------------------ *
 * Shell
 * ------------------------------------------------------------------ */

.shell {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.skip-link {
  position: absolute;
  inset-block-start: -100%;
  inset-inline-start: 0.5rem;
  z-index: 100;
  padding: 0.65rem 1rem;
  background: var(--accent);
  color: var(--ink-inverse);
  border-radius: 0 0 var(--radius) var(--radius);
  text-decoration: none;
}

.skip-link:focus {
  inset-block-start: 0;
}

.banner {
  background: var(--surface);
  border-block-end: 1px solid var(--line);
}

.banner__inner,
.footer__inner,
.main {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1rem;
  width: 100%;
}

.banner__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  padding-block: 0.75rem;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav {
  flex: 1 1 auto;
  min-width: 0;
}

.nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__link {
  display: inline-block;
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius);
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 0.92rem;
  white-space: nowrap;
}

.nav__link:hover {
  background: var(--surface-sunken);
  color: var(--ink);
}

/* UX-005: the current page is marked by weight and an underline, not colour. */
.nav__link--active {
  color: var(--ink);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--accent);
}

.account__inner {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.account__signed-in {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.account__tenant {
  color: var(--ink-muted);
}

.account__tenant-meta {
  font-variant-numeric: tabular-nums;
}

.account__name {
  font-weight: 600;
}

.account select {
  padding: 0.3rem 0.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}

.main {
  flex: 1 1 auto;
  padding-block: 1.5rem 3rem;
}

.outlet:focus {
  outline: none;
}

.footer {
  background: var(--surface);
  border-block-start: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.85rem;
}

.footer__inner {
  padding-block: 1.25rem;
}

.footer p {
  margin: 0.2rem 0;
}

/* ------------------------------------------------------------------ *
 * Page furniture
 * ------------------------------------------------------------------ */

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin-block: 0 0.5rem;
}

h1 {
  font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2rem);
}

h2 {
  font-size: 1.2rem;
}

h3 {
  font-size: 1.02rem;
}

h1:focus {
  outline: none;
}

p {
  margin-block: 0 0.75rem;
}

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

.page__lead {
  max-width: var(--measure);
  color: var(--ink-muted);
}

.page__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.breadcrumb {
  font-size: 0.9rem;
}

.breadcrumb a {
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.muted {
  color: var(--ink-muted);
}

.prose {
  max-width: var(--measure);
}

.quote {
  margin: 0 0 1rem;
  padding-inline-start: 1rem;
  border-inline-start: 3px solid var(--line-strong);
  color: var(--ink);
}

.section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.15rem;
  margin-block-end: 1.25rem;
}

.section__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-block-end: 0.5rem;
}

.section__header h2 {
  margin-block-end: 0;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  gap: 1.25rem;
  align-items: start;
}

.details summary {
  cursor: pointer;
  padding-block: 0.35rem;
  font-weight: 600;
}

/* code, references and amounts stay LTR even in an RTL page (UX-006) */
.code {
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--surface-sunken);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.05em 0.35em;
  unicode-bidi: isolate;
}

/* ------------------------------------------------------------------ *
 * Buttons
 * ------------------------------------------------------------------ */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  /* WCAG 2.5.8: at least 24px, and comfortably larger for touch. */
  min-height: 2.65rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 550;
  text-decoration: none;
  cursor: pointer;
}

.button:hover:not([disabled]) {
  border-color: var(--ink-muted);
}

.button[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

.button--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.button--primary:hover:not([disabled]) {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.button--danger {
  background: var(--critical);
  border-color: var(--critical);
  color: #fff;
}

.button--ghost {
  background: transparent;
}

.button--small {
  min-height: 2.1rem;
  padding: 0.25rem 0.6rem;
  font-size: 0.86rem;
}

.action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 0.75rem 1rem;
}

.action-bar__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ------------------------------------------------------------------ *
 * Forms
 * ------------------------------------------------------------------ */

.form {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  max-width: 42rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field__label {
  font-weight: 600;
  font-size: 0.94rem;
}

.field__required {
  color: var(--critical);
}

.field__hint {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.86rem;
}

.field__error {
  margin: 0;
  color: var(--critical);
  font-size: 0.88rem;
  font-weight: 550;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 2.65rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}

.field textarea {
  min-height: 5rem;
  resize: vertical;
}

/* UX-005: an invalid field is marked by a thicker border and the message
   below it, so the state survives without colour perception. */
.field--invalid input,
.field--invalid select,
.field--invalid textarea {
  border-width: 2px;
  border-color: var(--critical);
}

.form--reply {
  max-width: none;
  margin-block-start: 1rem;
  padding-block-start: 1rem;
  border-block-start: 1px solid var(--line);
}

.search-bar {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-block-end: 1rem;
}

.search-bar .field {
  flex: 1 1 18rem;
}

.facets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-block-end: 1rem;
}

.chip {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-size: 0.88rem;
  text-decoration: none;
}

.chip--active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--surface);
  font-weight: 600;
}

/* ------------------------------------------------------------------ *
 * States
 * ------------------------------------------------------------------ */

.state {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.state__title {
  margin-block-start: 0;
}

.state__description {
  color: var(--ink-muted);
  max-width: var(--measure);
}

.state__meta {
  font-size: 0.86rem;
  color: var(--ink-muted);
}

.state__actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.state--loading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.state--error,
.state--conflict {
  /* An inline-start rule carries the severity in addition to the label. */
  border-inline-start: 4px solid var(--critical);
}

.state--conflict {
  border-inline-start-color: var(--caution);
}

.state--denied {
  border-inline-start: 4px solid var(--line-strong);
}

.spinner {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--line-strong);
  border-block-start-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex: none;
}

.spinner--inline {
  width: 0.9rem;
  height: 0.9rem;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.skeleton__row {
  height: 1.1rem;
  margin-block-end: 0.6rem;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--surface-sunken), var(--line), var(--surface-sunken));
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
}

@keyframes shimmer {
  to {
    background-position: -200% 0;
  }
}

.banner--success,
.banner--pending {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.8rem 1rem;
  border-radius: var(--radius);
  margin-block-end: 1rem;
  background: var(--positive-wash);
  border: 1px solid var(--positive);
  color: var(--ink);
}

.banner--pending {
  background: var(--caution-wash);
  border-color: var(--caution);
}

.banner p {
  margin: 0;
}

.banner__meta {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.error-summary {
  padding: 1rem;
  border: 2px solid var(--critical);
  border-radius: var(--radius);
  background: var(--critical-wash);
  margin-block-end: 1rem;
}

.error-summary__title {
  margin-block-start: 0;
}

.error-summary__list {
  margin: 0;
  padding-inline-start: 1.2rem;
}

.callout {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-inline-start: 4px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  margin-block-end: 1.25rem;
}

.callout h2,
.callout h3 {
  margin-block-start: 0;
}

.callout--warning {
  border-inline-start-color: var(--caution);
  background: var(--caution-wash);
}

.callout--critical {
  border-inline-start-color: var(--critical);
  background: var(--critical-wash);
}

.callout--positive {
  border-inline-start-color: var(--positive);
  background: var(--positive-wash);
}

.callout--info {
  border-inline-start-color: var(--info);
  background: var(--info-wash);
}

/* ------------------------------------------------------------------ *
 * Badges and stats
 * ------------------------------------------------------------------ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.1rem 0.5rem;
  margin-inline-end: 0.25rem;
  border: 1px solid currentcolor;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  vertical-align: baseline;
}

.badge__mark {
  font-size: 0.7em;
}

.badge--neutral {
  color: var(--ink-muted);
}

.badge--positive {
  color: var(--positive);
  background: var(--positive-wash);
}

.badge--caution {
  color: var(--caution);
  background: var(--caution-wash);
}

.badge--critical {
  color: var(--critical);
  background: var(--critical-wash);
}

.badge--info {
  color: var(--info);
  background: var(--info-wash);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr));
  gap: 0.75rem;
  margin-block-end: 0.75rem;
}

.stat {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-sunken);
}

.stat__label {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.stat__value {
  margin: 0.1rem 0 0;
  font-size: 1.45rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.stat__value--positive {
  color: var(--positive);
}

.stat__value--caution {
  color: var(--caution);
}

.stat__value--critical {
  color: var(--critical);
}

.stat__hint {
  margin: 0.15rem 0 0;
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.freshness {
  font-size: 0.82rem;
  color: var(--ink-muted);
  margin-block-end: 0;
}

.freshness--degraded {
  font-weight: 550;
}

/* ------------------------------------------------------------------ *
 * Tables
 * ------------------------------------------------------------------ */

/* SRS 10.4: a wide table scrolls inside its own labelled region rather than
   pushing the page sideways. */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.table__caption {
  text-align: start;
  padding: 0.7rem 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
  border-block-end: 1px solid var(--line);
}

.table th,
.table td {
  text-align: start;
  padding: 0.6rem 0.85rem;
  border-block-end: 1px solid var(--line);
  vertical-align: top;
}

.table th {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  white-space: nowrap;
}

.table tbody tr:last-child td {
  border-block-end: none;
}

.table .is-numeric {
  text-align: end;
  font-variant-numeric: tabular-nums;
}

.table__row--interactive {
  cursor: pointer;
}

.table__row--interactive:hover {
  background: var(--surface-sunken);
}

.table--compact th,
.table--compact td {
  padding: 0.4rem 0.55rem;
}

.facts {
  display: grid;
  grid-template-columns: minmax(8rem, auto) 1fr;
  gap: 0.3rem 1rem;
  margin: 0;
}

.facts dt {
  color: var(--ink-muted);
  font-size: 0.88rem;
}

.facts dd {
  margin: 0;
}

/* ------------------------------------------------------------------ *
 * Lists: timeline, people, messages, results
 * ------------------------------------------------------------------ */

.timeline,
.people,
.messages,
.results,
.links,
.gates,
.dupe-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline__entry {
  padding-inline-start: 1rem;
  border-inline-start: 2px solid var(--line);
  padding-block: 0.35rem;
}

.timeline__title {
  margin: 0;
  font-weight: 600;
  font-size: 0.94rem;
}

.timeline__meta {
  margin: 0;
  font-size: 0.84rem;
  color: var(--ink-muted);
}

.people__entry {
  padding-block: 0.3rem;
}

.people__name {
  font-weight: 600;
}

.message {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-block-end: 0.65rem;
  background: var(--surface);
}

/* POR-006: an internal note is visibly different at a glance, and says so in
   words as well. */
.message--internal {
  background: var(--caution-wash);
  border-inline-start: 4px solid var(--caution);
}

.message__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.84rem;
  color: var(--ink-muted);
  margin-block-end: 0.4rem;
}

.message__author {
  font-weight: 600;
  color: var(--ink);
}

.message__body p:last-child {
  margin-block-end: 0;
}

.result {
  padding-block: 0.7rem;
  border-block-end: 1px solid var(--line);
}

.result__title {
  margin: 0 0 0.2rem;
}

.result__excerpt {
  margin: 0 0 0.25rem;
  color: var(--ink-muted);
  max-width: var(--measure);
}

.result__meta {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.links li {
  padding-block: 0.25rem;
}

/* ------------------------------------------------------------------ *
 * Board (GUI-08)
 * ------------------------------------------------------------------ */

.board {
  /* A kanban reads as one row of columns. Wrapping it into a second row, as a
     grid would, puts "Done" underneath "Backlog" and destroys the left-to-right
     progression the board exists to show — so it scrolls sideways instead, in
     its own region, and stacks only when the screen is genuinely narrow. */
  display: flex;
  gap: 0.75rem;
  align-items: start;
  overflow-x: auto;
  padding-block-end: 0.5rem;
}

.board > .board__column {
  flex: 0 0 15rem;
}

.board__column {
  background: var(--surface-sunken);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.65rem;
}

.board__heading {
  margin: 0 0 0.5rem;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

.board__count {
  font-variant-numeric: tabular-nums;
}

.board__items {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.board__empty {
  font-size: 0.86rem;
  margin: 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card--blocked {
  border-inline-start: 4px solid var(--critical);
}

.card__button {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  width: 100%;
  padding: 0.65rem 0.7rem;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: start;
  cursor: pointer;
}

.card__button:hover {
  background: var(--surface-sunken);
}

.card__reference {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.76rem;
  color: var(--ink-muted);
  unicode-bidi: isolate;
}

.card__title {
  font-weight: 600;
  font-size: 0.92rem;
}

.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
}

.card__assignee {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.drawer {
  margin-block-start: 1.25rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.drawer__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.drawer__title {
  margin: 0;
  font-size: 1.05rem;
}

.drawer__section {
  margin-block-start: 1rem;
}

.drawer__section h3 {
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

/* ------------------------------------------------------------------ *
 * Gates, duplicates, priority (GUI-05, GUI-09)
 * ------------------------------------------------------------------ */

.gate {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-block-end: 0.6rem;
}

.gate--failed {
  border-inline-start: 4px solid var(--critical);
}

.gate--passed {
  border-inline-start: 4px solid var(--positive);
}

.gate__title {
  margin: 0 0 0.25rem;
  font-weight: 600;
}

.gate__detail {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.gate__exception {
  margin-block-start: 0.6rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius);
  background: var(--caution-wash);
}

.dupe {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-block-end: 1px solid var(--line);
}

.dupe--separate {
  align-items: center;
}

.dupe__title {
  margin: 0 0 0.2rem;
  font-weight: 600;
}

.dupe__reasons {
  margin: 0;
  padding-inline-start: 1.1rem;
  font-size: 0.86rem;
  color: var(--ink-muted);
}

.dupe__actions {
  display: flex;
  gap: 0.4rem;
  align-items: flex-start;
}

.priority-headline {
  font-size: 1.05rem;
  font-weight: 600;
}

.priority-override {
  color: var(--ink-muted);
  font-size: 0.9rem;
}

/* ------------------------------------------------------------------ *
 * Dialogs
 * ------------------------------------------------------------------ */

.dialog {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgb(10 12 16 / 55%);
  overflow-y: auto;
}

.dialog__panel {
  width: min(38rem, 100%);
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.dialog__title {
  margin-block-start: 0;
}

.dialog__description {
  color: var(--ink-muted);
  white-space: pre-line;
}

.dialog__facts {
  display: grid;
  grid-template-columns: minmax(7rem, auto) 1fr;
  gap: 0.3rem 1rem;
  margin: 0 0 1rem;
}

.dialog__facts dt {
  color: var(--ink-muted);
  font-size: 0.88rem;
}

.dialog__facts dd {
  margin: 0;
}

.dialog__notice {
  padding: 0.8rem 0.9rem;
  border-radius: var(--radius);
  background: var(--caution-wash);
  border: 1px solid var(--caution);
  margin-block-end: 1rem;
}

.dialog__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ------------------------------------------------------------------ *
 * AI answers (GUI-02, AIA-004)
 * ------------------------------------------------------------------ */

.ai-answer {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-inline-start: 4px solid var(--info);
  border-radius: var(--radius);
  background: var(--surface);
  margin-block-end: 1rem;
}

.ai-answer__label {
  margin-block-end: 0.5rem;
}

.ai-answer__body {
  max-width: var(--measure);
}

.ai-answer__note {
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.ai-answer__citations {
  margin-block-start: 0.75rem;
  padding-block-start: 0.75rem;
  border-block-start: 1px solid var(--line);
}

.ai-answer__citations h4 {
  margin: 0 0 0.35rem;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

.ai-answer__citations ol {
  margin: 0;
  padding-inline-start: 1.2rem;
  font-size: 0.9rem;
}

.ai-answer__citation-meta {
  color: var(--ink-muted);
  font-size: 0.85em;
}

/* ------------------------------------------------------------------ *
 * Auth and marketing pages
 * ------------------------------------------------------------------ */

.page--auth {
  display: flex;
  justify-content: center;
  padding-block: 2rem;
}

.auth-card {
  width: min(28rem, 100%);
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.auth-card__footnote {
  margin-block-start: 1rem;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.hero {
  padding: 2rem 0 1rem;
}

.hero h1 {
  max-width: 20ch;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: 0.9rem;
}

.tile {
  display: block;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
}

.tile:hover {
  border-color: var(--line-strong);
}

/* ------------------------------------------------------------------ *
 * Narrow screens (SRS 10.4, down to 320px)
 * ------------------------------------------------------------------ */

@media (max-width: 40rem) {
  .board {
    display: block;
    overflow-x: visible;
  }

  .board > .board__column {
    margin-block-end: 0.75rem;
  }

  .banner__inner {
    align-items: flex-start;
  }

  .nav {
    order: 3;
    flex-basis: 100%;
    overflow-x: auto;
  }

  .nav__list {
    flex-wrap: nowrap;
  }

  .section {
    padding: 0.9rem;
  }

  .facts,
  .dialog__facts {
    grid-template-columns: 1fr;
  }

  .facts dt {
    font-weight: 600;
  }
}

@media print {
  .banner,
  .footer,
  .action-bar,
  .facets {
    display: none;
  }

  .section,
  .table-scroll {
    border: none;
  }
}

/* ------------------------------------------------------------------ *
 * Phase 2 screens (GUI-12..GUI-17)
 *
 * Everything below is layout for patterns Phase 1 did not need: a filter bar,
 * a definition list, a two-pane comparison, an indicator card that carries its
 * own caveats, and the mobile home. The Phase 1 primitives — badges, tables,
 * states, buttons — are reused unchanged, which is why this section is short.
 * ------------------------------------------------------------------ */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
  padding: 0.85rem;
  margin-block-end: 1rem;
  background: var(--surface-sunken);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.filters .field {
  flex: 1 1 12rem;
  margin: 0;
}

.record-header {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-block-end: 1rem;
}

.record-header h1 {
  margin: 0;
}

.record-header__eyebrow,
.record-header__meta {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 0.75rem;
}

.button-row--tight {
  margin-block: 0;
  gap: 0.35rem;
}

.definition-list {
  display: grid;
  grid-template-columns: minmax(8rem, max-content) 1fr;
  gap: 0.3rem 1rem;
  margin: 0.5rem 0 0;
}

.definition-list dt {
  font-weight: 600;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.definition-list dd {
  margin: 0;
}

.split__pane {
  min-width: 0;
}

.checklist {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.checklist__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem;
  padding-block: 0.3rem;
  border-block-end: 1px solid var(--line);
}

.checklist__item:last-child {
  border-block-end: 0;
}

.checklist__label {
  font-weight: 500;
}

.evidence-list {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.evidence-list__item {
  padding-inline-start: 0.8rem;
  border-inline-start: 3px solid var(--line);
}

.evidence-list__label {
  margin: 0;
  font-weight: 600;
  font-size: 0.92rem;
}

.evidence-list__value {
  margin: 0.15rem 0 0;
}

.evidence-list__source {
  margin: 0.35rem 0 0;
  padding-inline-start: 0.7rem;
  border-inline-start: 2px solid var(--line);
  color: var(--ink-muted);
  font-style: italic;
}

/* A disclosure that holds the arithmetic behind a figure. */
.working {
  margin-block: 0.75rem;
  padding: 0.6rem 0.75rem;
  background: var(--surface-sunken);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.working > summary {
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.working__value {
  font-variant-numeric: tabular-nums;
  color: var(--ink-muted);
}

.numeric,
td.numeric {
  text-align: end;
  font-variant-numeric: tabular-nums;
  unicode-bidi: isolate;
}

.table__total th,
.table__total td {
  border-block-start: 2px solid var(--line);
  font-weight: 700;
}

.warning-text {
  color: var(--caution-ink, var(--ink));
}

/* PRF-006: the number, and what it cannot tell you, in the same card. */
.indicator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: 0.85rem;
}

.indicator {
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.indicator__label {
  margin: 0;
  font-size: 0.92rem;
}

.indicator__value {
  margin: 0.2rem 0 0;
  font-size: 1.8rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.indicator__fraction,
.indicator__definition,
.indicator__source {
  margin: 0.15rem 0 0;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.indicator__limits {
  margin-block-start: 0.5rem;
  font-size: 0.85rem;
}

.assessment {
  padding: 0.75rem 0.85rem;
  margin-block-end: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.assessment__heading {
  margin: 0 0 0.4rem;
  font-size: 0.98rem;
}

.outcome__rating {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
}

/* ------------------------------------------------------------------ *
 * GUI-14 — the mobile home
 *
 * Designed at 320px first. Targets are 44px because MOB-006 says so and
 * because a thumb on a moving train is the actual use case.
 * ------------------------------------------------------------------ */

.page--mobile {
  max-width: 34rem;
}

.mobile-header {
  margin-block-end: 0.75rem;
}

.mobile-header h1 {
  margin: 0;
}

.mobile-header__eyebrow {
  margin: 0;
  font-size: 0.85rem;
  color: var(--ink-muted);
  unicode-bidi: isolate;
}

.page--mobile .card {
  padding: 0.85rem 0.9rem;
  margin-block-end: 0.85rem;
}

.page--mobile .card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.card--primary {
  border-inline-start: 4px solid var(--accent, #1d4ed8);
}

.card__lead {
  margin: 0 0 0.5rem;
  color: var(--ink-muted);
}

.touch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.touch-row .button,
.page--mobile .button {
  min-height: 44px;
  min-width: 44px;
  padding-inline: 1rem;
}

/* MOB-004 / SRS 10.3 "unavailable": always visible, never a silent failure. */
.connectivity:empty {
  display: none;
}

.connectivity__offline {
  padding: 0.75rem 0.85rem;
  margin-block-end: 0.85rem;
  border: 1px solid var(--caution, #b45309);
  border-inline-start-width: 4px;
  border-radius: var(--radius);
  background: var(--surface-sunken);
}

.connectivity__title {
  margin: 0 0 0.25rem;
  font-weight: 700;
}

.connectivity__offline p {
  margin: 0.15rem 0 0;
  font-size: 0.9rem;
}

@media (max-width: 30rem) {
  .filters .field {
    flex-basis: 100%;
  }

  .definition-list {
    grid-template-columns: 1fr;
    gap: 0.1rem 0;
  }

  .definition-list dd {
    margin-block-end: 0.4rem;
  }

  .touch-row .button {
    flex: 1 1 100%;
  }
}