/* Healthcare Clinical Workspace — mobile first, no external resources. */

:root {
  --bg: #f5f7f8;
  --surface: #ffffff;
  --text: #1a2226;
  --muted: #5b6a71;
  --border: #d5dde0;
  --accent: #0b5f6b;
  --accent-contrast: #ffffff;
  --danger: #a3262a;
  --warning-bg: #fff4d6;
  --warning-border: #b7791f;
  --info-bg: #e7f1f7;
  --success-bg: #e3f4e8;
  --focus: #1d4ed8;
  --radius: 10px;
  --gap: 1rem;
  --touch: 44px;
  color-scheme: light dark;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 100%;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11181b;
    --surface: #1a2327;
    --text: #e6edef;
    --muted: #9fb0b6;
    --border: #33434a;
    --accent: #5cc3cf;
    --accent-contrast: #0b1b1e;
    --danger: #ff8a8e;
    --warning-bg: #3a2f12;
    --warning-border: #d9a441;
    --info-bg: #13303c;
    --success-bg: #173a24;
    --focus: #8ab4ff;
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
h1 { font-size: 1.5rem; line-height: 1.25; margin: 0.5rem 0 1rem; overflow-wrap: anywhere; }
h2 { font-size: 1.15rem; margin: 0 0 0.75rem; }
h3 { font-size: 1rem; margin: 1rem 0 0.5rem; }
p { margin: 0.25rem 0 0.75rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; overflow-wrap: anywhere; }
a { color: var(--accent); }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
main:focus { outline: none; }

.skip-link { position: absolute; left: -9999px; top: 0; }
.skip-link:focus { left: 0.5rem; top: 0.5rem; z-index: 10; }

.app { min-height: 100vh; display: flex; flex-direction: column; }
.app-header {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem;
  padding: max(0.5rem, env(safe-area-inset-top)) 1rem 0.5rem;
  background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; }
.brand-mark {
  display: inline-grid; place-items: center; width: 2rem; height: 2rem; border-radius: 8px;
  background: var(--accent); color: var(--accent-contrast); font-weight: 700;
}
.app-nav { display: flex; gap: 0.25rem; order: 3; width: 100%; }
.app-nav a {
  display: inline-flex; align-items: center; min-height: var(--touch); padding: 0 0.75rem;
  border-radius: var(--radius); text-decoration: none;
}
.app-nav a[aria-current="page"] { background: var(--info-bg); font-weight: 600; }
.header-status { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-left: auto; font-size: 0.875rem; }
.connectivity.is-offline { color: var(--danger); font-weight: 600; }
.principal { color: var(--muted); overflow-wrap: anywhere; }

.env-banner { margin: 0; padding: 0.5rem 1rem; background: var(--warning-bg); border-bottom: 1px solid var(--warning-border); font-size: 0.875rem; }
.notice-region { padding: 0 1rem; }
.notice { margin: 0.5rem 0; padding: 0.5rem 0.75rem; border-radius: var(--radius); background: var(--info-bg); }
.notice-warning { background: var(--warning-bg); }
.notice-error { background: var(--warning-bg); border-left: 4px solid var(--danger); }

main { flex: 1; width: 100%; max-width: 72rem; margin: 0 auto; padding: 1rem; padding-bottom: max(1rem, env(safe-area-inset-bottom)); }
.app-footer { padding: 0.75rem 1rem; color: var(--muted); font-size: 0.8rem; border-top: 1px solid var(--border); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; margin-bottom: var(--gap); }
.card.narrow { max-width: 32rem; margin: 2rem auto; }
.stack > .card:last-child { margin-bottom: 0; }
.layout-split { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--gap); align-items: start; }

.banner { padding: 0.75rem; border-radius: var(--radius); margin: 0.5rem 0; }
.banner h2 { font-size: 1rem; }
.banner-warning { background: var(--warning-bg); border: 1px solid var(--warning-border); }
.banner-info { background: var(--info-bg); }
.banner-success { background: var(--success-bg); }
section.banner { margin: 0.5rem 1rem; }

.meta, .hint, .muted { color: var(--muted); font-size: 0.875rem; }
.failure { border-left: 4px solid var(--danger); padding: 0.5rem 0.75rem; background: var(--warning-bg); border-radius: var(--radius); }
.form-errors { color: var(--danger); padding-left: 1.25rem; }
.loading { color: var(--muted); }

button, .button {
  display: inline-flex; align-items: center; justify-content: center; min-height: var(--touch); min-width: var(--touch);
  padding: 0 1rem; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font: inherit; cursor: pointer; text-decoration: none;
  touch-action: manipulation;
}
button.primary, .button.primary { background: var(--accent); color: var(--accent-contrast); border-color: var(--accent); }
button.danger { color: var(--danger); border-color: var(--danger); }
button.secondary { background: transparent; }
button.link { min-height: auto; min-width: auto; padding: 0; border: 0; background: none; color: var(--accent); text-decoration: underline; }
button:disabled { opacity: 0.55; cursor: not-allowed; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.75rem 0; }

.field { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 0.75rem; }
.field label { font-weight: 600; }
.required { color: var(--danger); }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px; padding: 0.5rem 0.625rem; min-height: var(--touch); width: 100%;
}
textarea { resize: vertical; }
input[type="checkbox"], input[type="radio"] { width: 1.25rem; height: 1.25rem; min-height: auto; }
.field-checkbox { flex-direction: row; align-items: center; gap: 0.5rem; }

.segmented { border: 0; padding: 0; margin: 0 0 1rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.segmented legend { font-weight: 600; margin-bottom: 0.5rem; }
.segment {
  display: inline-flex; align-items: center; gap: 0.375rem; min-height: var(--touch); padding: 0 0.75rem;
  border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer;
}
.segment.is-selected { border-color: var(--accent); background: var(--info-bg); }
.segment-status { font-size: 0.75rem; color: var(--muted); }

.badge { display: inline-block; padding: 0.05rem 0.5rem; border-radius: 999px; font-size: 0.8rem; border: 1px solid var(--border); white-space: nowrap; }
.badge-available, .badge-wf-approved { background: var(--success-bg); }
.badge-partial, .badge-wf-in_review { background: var(--info-bg); }
.badge-not_exposed, .badge-wf-draft { background: var(--bg); }
.badge-gated, .badge-wf-rejected, .badge-wf-halted { background: var(--warning-bg); border-color: var(--warning-border); }
.badge-excluded { background: var(--warning-bg); border-color: var(--warning-border); font-weight: 600; white-space: normal; }

.state-banner { border-radius: var(--radius); padding: 0.75rem 1rem; margin-bottom: var(--gap); border: 2px solid var(--border); }
.state-banner.state-draft { border-style: dashed; }
.state-banner.state-approved { border-color: var(--accent); background: var(--success-bg); }
.state-banner.state-halted, .state-banner.state-rejected { border-color: var(--warning-border); background: var(--warning-bg); }
.state-line { font-weight: 600; }

.context-banner { border-left: 4px solid var(--accent); background: var(--surface); padding: 0.5rem 0.75rem; margin-bottom: var(--gap); border-radius: var(--radius); }
.context-gated, .context-not_exposed { border-left-color: var(--warning-border); }

.tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 0.5rem; }
.tabs ul { display: flex; gap: 0.25rem; list-style: none; margin: 0; padding: 0; }
.tabs a { display: inline-flex; align-items: center; min-height: var(--touch); padding: 0 0.75rem; border-radius: var(--radius); white-space: nowrap; text-decoration: none; }
.tabs a[aria-current="page"] { background: var(--accent); color: var(--accent-contrast); }

.case-list, .workflow-list, .buc-list, .fact-list, .gap-list, .incident-list, .version-list, .codes, .text-list { padding-left: 0; list-style: none; margin: 0; }
.case-list li a, .buc-list li a { display: flex; flex-direction: column; min-height: var(--touch); padding: 0.5rem 0; text-decoration: none; }
.case-list li, .buc-list li, .workflow-list li, .fact-list li, .gap-list li, .incident-list li { border-bottom: 1px solid var(--border); padding: 0.375rem 0; }
.buc-list li { display: flex; flex-direction: column; }
.buc-id { font-weight: 600; font-family: ui-monospace, monospace; }
.codes { display: flex; flex-wrap: wrap; gap: 0.375rem; }
.codes li code { padding: 0.1rem 0.4rem; border-radius: 6px; background: var(--bg); border: 1px solid var(--border); }
.text-list li { padding: 0.125rem 0; }
.text-list li::before { content: "– "; color: var(--muted); }
.chip { display: inline-block; margin-right: 0.375rem; }

.stages { display: flex; flex-wrap: wrap; gap: 0.375rem; list-style: none; padding: 0; margin: 0.5rem 0; }
.stage { padding: 0.125rem 0.5rem; border-radius: 6px; border: 1px solid var(--border); font-size: 0.85rem; }
.stage-human { border-color: var(--accent); font-weight: 600; }
.stage-external { border-style: dashed; }
.stage-kind { margin-left: 0.25rem; color: var(--muted); font-size: 0.75rem; }

.facts { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0.25rem 1rem; }
.facts dt { font-weight: 600; margin-top: 0.5rem; }
.facts dd { margin: 0; overflow-wrap: anywhere; }
.state-legend dt { margin-top: 0.5rem; }
.state-legend dd { margin: 0 0 0.25rem; color: var(--muted); }
.filters { display: flex; flex-wrap: wrap; gap: 0.25rem; margin: 0.75rem 0; }
.filters a { display: inline-flex; align-items: center; min-height: var(--touch); padding: 0 0.75rem; border-radius: var(--radius); }
.filters a[aria-current="page"] { background: var(--info-bg); font-weight: 600; }

.tree { margin: 0.125rem 0 0.125rem 0.75rem; padding: 0; font-size: 0.875rem; }
dl.tree dt { font-weight: 600; }
dl.tree dd { margin: 0 0 0.25rem 0.75rem; overflow-wrap: anywhere; }

.doc-section { border-top: 1px solid var(--border); padding-top: 0.5rem; }
.doc-unit { padding: 0.5rem 0.75rem; margin: 0.375rem 0; border-radius: 8px; border-left: 4px solid var(--border); }
.doc-unit.is-uncertain { border-left-color: var(--warning-border); background: var(--warning-bg); }
.uncertainty { font-weight: 600; }
.reference-time { font-weight: 600; }
.severity-halted { border-left: 4px solid var(--danger); padding-left: 0.5rem; }
.severity-degraded { border-left: 4px solid var(--warning-border); padding-left: 0.5rem; }
.boot { padding: 2rem 1rem; text-align: center; color: #5b6a71; }

@media (min-width: 40rem) {
  h1 { font-size: 1.75rem; }
  .app-nav { order: 0; width: auto; }
  .facts { grid-template-columns: minmax(10rem, 14rem) minmax(0, 1fr); }
  .facts dt { margin-top: 0; }
  .buc-list li { flex-direction: row; justify-content: space-between; align-items: center; gap: 1rem; }
  .buc-list li a { flex-direction: row; gap: 0.75rem; align-items: center; }
}

@media (min-width: 64rem) {
  .layout-split { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

@media (forced-colors: active) {
  .badge, .stage, .doc-unit, .state-banner { border: 1px solid CanvasText; }
  button:disabled { color: GrayText; }
}

/* Step-up confirmation dialog: modal over an inert page. */
.dialog-backdrop {
  position: fixed; inset: 0; z-index: 20; display: flex; align-items: center; justify-content: center;
  padding: 1rem; background: rgba(0, 0, 0, 0.55); overflow-y: auto;
}
.dialog {
  width: 100%; max-width: 34rem; max-height: 100%; overflow-y: auto;
  background: var(--surface); color: var(--text); border: 2px solid var(--accent);
  border-radius: var(--radius); padding: 1rem 1.25rem;
}
.confirmation { padding: 0.5rem 0; border-bottom: 1px solid var(--border); }

@media print {
  .app-header, .app-nav, .tabs, .actions, .skip-link, .notice-region { display: none; }
  .card { border: 0; }
}