/* Patient app. Calm, high-contrast theme in the homepage's system: IBM Plex, near-black on off-white,
   hairline rules, one red accent. Fonts are declared in /shared/site-nav.css. Light and dark tokens below. */
:root {
  color-scheme: light;
  --bg: #f6f5f1;
  --soft: #ecebe5;
  --ink: #191918;
  --muted: #62625b;
  --line: #d5d4cd;
  --line-strong: #84837b;
  --accent: #ae0808;
  --ok: #2e6b46;
  --danger: #ae0808;
  --on-ink: #f6f5f1;
  --backdrop: rgba(25, 25, 24, 0.55);
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --tap: 52px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #171918;
    --soft: #202321;
    --ink: #eeeee7;
    --muted: #adaea5;
    --line: #3c403a;
    --line-strong: #74786f;
    --accent: #d87067;
    --ok: #8cc7a0;
    --danger: #d87067;
    --on-ink: #171918;
    --backdrop: rgba(0, 0, 0, 0.6);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #171918;
  --soft: #202321;
  --ink: #eeeee7;
  --muted: #adaea5;
  --line: #3c403a;
  --line-strong: #74786f;
  --accent: #d87067;
  --ok: #8cc7a0;
  --danger: #d87067;
  --on-ink: #171918;
  --backdrop: rgba(0, 0, 0, 0.6);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.125rem;
  line-height: 1.55;
}

h1, h2, h3 {
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.25;
  color: var(--ink);
}
h1 { font-size: clamp(1.75rem, 5.5vw, 2.3rem); margin: 0.7em 0 0.4em; }
h2 { font-size: clamp(1.3rem, 4vw, 1.6rem); margin: 1.4em 0 0.5em; }
h3 { font-size: 1.15rem; font-weight: 600; margin: 1em 0 0.4em; }
h1:focus, h2:focus, [tabindex="-1"]:focus-visible { outline: none; box-shadow: none; }

a { color: var(--ink); text-underline-offset: 3px; }
a:hover { color: var(--accent); }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.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;
}

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 10;
  background: var(--ink); color: var(--on-ink); padding: 12px 16px; font: inherit; font-weight: 600; border: 0; cursor: pointer;
}
.skip-link:focus { top: 12px; }

.wrap { width: min(100% - 2 * var(--unm-gutter, 16px), var(--unm-wrap, 1120px)); margin: 0 auto; padding: 0; }
.screen:not([data-screen="home"]):not([data-screen="check"]) { width: min(760px, 100%); margin-right: auto; margin-left: auto; }
.screen[data-screen="check"] { width: min(760px, 100%); margin-inline: auto; }
.screen[data-screen="check"] .step { width: 100%; }

.patient-intro { margin: 20px 0; }
.patient-intro h1 { margin: 0; font-size: clamp(1.7rem, 4vw, 2.3rem); font-weight: 600; letter-spacing: -0.02em; }
.patient-intro p { margin: 6px 0 0; color: var(--muted); font-size: 1.05rem; line-height: 1.45; }
.patient-intro .patient-lede { max-width: 46rem; margin: 0 0 12px; color: var(--ink); line-height: 1.5; }
.patient-intro .patient-try-link { color: var(--accent); font-weight: 700; text-underline-offset: 3px; }
.patient-intro .patient-try-link:hover { color: var(--accent); }

/* In-app nav: a quiet secondary bar under the shared site bar (/shared/site-nav.css). */
.appbar {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; flex-wrap: wrap; gap: 0 20px; list-style: none; margin: 0; padding: 0; }
.nav a {
  display: inline-flex; align-items: center; min-height: 48px;
  color: var(--ink); text-decoration: none; font-size: 0.95rem;
  border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--accent); }
.nav a[aria-current="page"] { border-bottom-color: var(--ink); font-weight: 600; }
@media (max-width: 480px) {
  .nav { gap: 0 14px; }
  .nav a { min-height: 44px; font-size: 0.92rem; }
}

.offline-banner { background: var(--soft); color: var(--ink); border-bottom: 1px solid var(--line); padding: 10px 16px; text-align: center; font-weight: 600; }

main { padding-bottom: 32px; }

body.patient-standalone .patient-intro,
body.patient-standalone .demo-card,
body.patient-standalone .footer { display: none !important; }
body.patient-standalone main.wrap { width: min(760px, calc(100% - 2 * var(--unm-gutter, 16px))); padding-top: 20px; }
body.patient-standalone .unm-sitebar-links a { display: none; }
body.patient-standalone .questionnaire-controls { top: 64px; }
.standalone-only { display: none; }
body.patient-standalone .standalone-only { display: inline; }
.standalone-delete { display: none; margin: 28px 0 0; padding: 18px 0; border-top: 1px solid var(--line); }
.standalone-delete p { color: var(--muted); }
body.patient-standalone .standalone-delete { display: block; }

.lead { font-size: 1.2rem; }
.note { color: var(--muted); font-size: 1rem; }
.attribution { color: var(--muted); font-size: 0.92rem; margin-top: 12px; border-top: 1px solid var(--line); padding-top: 8px; }
.meta { color: var(--muted); font-size: 0.95rem; }

/* Cards and tiles: hairline boxes, no shadows */
.card {
  background: var(--bg); border: 1px solid var(--line);
  padding: 18px; margin: 16px 0;
}
.card > :first-child { margin-top: 0; }
.card h2, .card h3 { margin-top: 0; }
.card-flag { border-left: 3px solid var(--ink); }
/* The 988 Lifeline box (PHQ-9 question 9): the one red accent, with large tap targets for the links */
.card-crisis { border: 1px solid var(--accent); border-left-width: 4px; }
.card-crisis h2 { font-size: 1.25rem; }
.card-crisis > :last-child { margin-bottom: 0; }
.card-crisis a { font-weight: 600; padding: 10px 0; }
.crisis-slot .card-crisis { margin: 12px 0 4px; }
.tiles { display: grid; gap: 12px; margin: 20px 0; }
@media (min-width: 620px) { .tiles { grid-template-columns: 1fr 1fr; } }
.tile {
  display: block; padding: 18px; border: 1px solid var(--line-strong);
  background: var(--bg); color: var(--ink); text-decoration: none; min-height: 96px;
}
.tile-primary { background: var(--ink); border-color: var(--ink); color: var(--on-ink); }
.tile-title { display: block; font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
.tile-sub { display: block; margin-top: 4px; font-size: 1rem; }
.tile:hover { color: inherit; border-color: var(--ink); }
.tile-primary:hover { color: var(--on-ink); }
.tile:hover .tile-title { text-decoration: underline; text-underline-offset: 3px; }

/* Buttons: square, near-black fill or hairline outline */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: var(--tap); padding: 10px 22px; border: 1px solid var(--ink);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; text-align: center;
}
.btn:hover { text-decoration: underline; text-underline-offset: 3px; }
.btn-primary { background: var(--ink); color: var(--on-ink); }
.btn-primary:hover { color: var(--on-ink); }
.btn-secondary { background: var(--bg); color: var(--ink); }
.btn-secondary:hover { background: var(--soft); color: var(--ink); }
.btn-danger { background: var(--bg); color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--soft); color: var(--danger); }
.btn-small { min-height: 44px; padding: 6px 14px; font-size: 1rem; }
.btn[disabled] { cursor: not-allowed; background: var(--soft); color: var(--muted); border-color: var(--line); text-decoration: none; }
.btn-link { background: none; border: 0; padding: 0 4px; min-height: 44px; color: var(--ink); text-decoration: underline; text-underline-offset: 3px; font: inherit; cursor: pointer; }
.btn-link:hover { color: var(--accent); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 20px 0; }
.actions .btn { flex: 1 1 220px; }

/* Symptom check steps */
.questionnaire-controls {
  position: sticky; top: 0; z-index: 5; display: grid; grid-template-columns: minmax(0, 1fr) auto;
  align-items: end; gap: 12px 20px; margin: 0 0 20px; padding: 12px 0;
  border-bottom: 1px solid var(--line); background: var(--bg);
}
.progress-row { margin: 0; }
.progress-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 4px; }
.progress-row label { display: block; font-weight: 600; }
.progress-head a { flex: 0 0 auto; color: var(--muted); font-size: 0.9rem; font-weight: 600; text-align: right; text-underline-offset: 3px; white-space: nowrap; }
progress { width: 100%; height: 8px; accent-color: var(--accent); }
.step-actions { display: flex; gap: 8px; margin: 0; }
.step-actions .btn { flex: 1; }
.questionnaire-controls .btn { min-height: 44px; padding: 7px 18px; }
.questionnaire-controls #step-next[disabled] { border-color: var(--ink); background: var(--ink); color: var(--on-ink); cursor: default; }
@media (max-width: 620px) {
  .questionnaire-controls { grid-template-columns: 1fr; gap: 8px; }
  .step-actions .btn { min-height: 40px; }
}
@media (min-width: 960px) {
  .questionnaire-controls { top: 64px; }
}
.verbatim { font-size: 1.3rem; line-height: 1.4; color: var(--ink); }
.instruction { background: var(--soft); border-left: 3px solid var(--line-strong); padding: 10px 14px; font-size: 1rem; }
.symptom-prompt { background: var(--soft); border-left: 3px solid var(--line-strong); padding: 14px; font-size: 1.2rem; line-height: 1.45; }

fieldset { border: 0; margin: 18px 0; padding: 0; min-width: 0; }
legend { font-weight: 600; font-size: 1.1rem; padding: 0; margin-bottom: 8px; }
.legend-help { display: block; font-weight: 400; color: var(--muted); font-size: 1rem; }

.choices { display: grid; gap: 8px; }
.choices-row { grid-template-columns: 1fr 1fr; }
@media (min-width: 620px) { .choices-4 { grid-template-columns: repeat(4, 1fr); } }
.choice { position: relative; }
.choice input {
  position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0;
}
.choice label {
  display: flex; flex-direction: column; justify-content: center; gap: 2px;
  min-height: var(--tap); padding: 10px 14px; border: 1px solid var(--line-strong);
  background: var(--bg); cursor: pointer;
}
.choice label:hover { border-color: var(--ink); }
.choice-main { font-weight: 400; }
.choice-sub { color: var(--muted); font-size: 0.95rem; }
.choice-num { font-family: var(--mono); font-weight: 400; margin-right: 6px; }
.choice input:checked + label { border-color: var(--ink); background: var(--soft); box-shadow: inset 0 0 0 1px var(--ink); }
.choice input:checked + label .choice-main { font-weight: 600; }
.choice input:checked + label .choice-main::before { content: "\2713\00a0"; }
.choice input:focus-visible + label { outline: 3px solid var(--accent); outline-offset: 3px; }

.yn { border-top: 1px solid var(--line); padding-top: 12px; }

.field { margin: 16px 0; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; }
input[type="text"], input[type="date"], select, textarea {
  width: 100%; min-height: var(--tap); padding: 10px 12px; font: inherit; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line-strong); border-radius: 0;
}
textarea { min-height: 110px; resize: vertical; }

/* Results */
.result-headline { font-size: 1.45rem; line-height: 1.3; margin: 4px 0 8px; color: var(--ink); }
.tag { display: inline-block; font-family: var(--mono); font-size: 0.85rem; color: var(--muted); }
.plain-list { padding-left: 1.2em; }
.plain-list li { margin: 4px 0; }
.change-list { list-style: none; padding: 0; margin: 0; }
.change-list li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.change-list li:last-child { border-bottom: 0; }
.change-answer { display: block; font-weight: 600; }

/* Demo person picker, hand-off, start over */
.demo-card { margin: 0 0 20px; }
.demo-card h2 { margin-bottom: 0.3em; }
body.patient-standalone .demo-frame { border: 0; background: transparent; }
body.patient-standalone .demo-frame-bar { display: none; }
body.patient-standalone .demo-frame-content { min-height: 0; }
body.patient-standalone .demo-frame-body { padding: 0; }
.demo-picker { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; min-width: 0; }
.demo-btn { display: flex; width: 100%; min-width: 0; min-height: 40px; align-items: baseline; gap: 6px; padding: 8px 12px; border: 1px solid var(--line-strong); background: var(--bg); color: var(--ink); font: inherit; font-size: 0.9rem; text-align: left; cursor: pointer; }
.demo-btn strong { flex: 0 0 auto; font-weight: 600; }
.demo-btn span { min-width: 0; overflow: hidden; color: var(--muted); font-size: 0.8rem; text-overflow: ellipsis; white-space: nowrap; }
.demo-btn:hover, .demo-btn:focus-visible { border-color: var(--ink); }
.demo-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.demo-btn[aria-pressed="true"] { border-color: var(--ink); background: var(--ink); color: var(--on-ink); }
.demo-btn[aria-pressed="true"] span { color: var(--on-ink); }
.demo-btn[disabled] { cursor: wait; }
@media (max-width: 760px) { .demo-picker { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .demo-btn span { display: none; } }
.demo-inline { background: var(--soft); border-left: 3px solid var(--line-strong); padding: 12px 14px; margin: 16px 0 4px; }
.demo-inline > p:first-child { margin: 0; font-size: 1rem; }
.demo-inline .note:empty, .demo-card .note:empty { display: none; }
.next-card { border: 1px solid var(--ink); }
.next-card .actions { margin: 12px 0; }
.note:empty { display: none; }
.start-over-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; margin: 4px 0 8px; }
.start-over-row .note { margin: 0; }
.questionnaire-summary { max-width: 680px; }
.questionnaire-summary h1 { margin-top: 0; }
.summary-signals-heading { margin: 16px 0 8px; font-size: 1.15rem; font-weight: 600; }
.summary-signals { display: grid; gap: 8px; list-style: none; margin: 0; padding: 0; }
.summary-signal { --signal-color: var(--muted); border: 1px solid var(--line); border-left: 4px solid var(--signal-color); padding: 9px 12px; }
.summary-signal-low { --signal-color: #26643a; }
.summary-signal-watch { --signal-color: #87500b; }
.summary-signal-review { --signal-color: #a32222; }
.summary-signal-top { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; line-height: 1.35; }
.summary-signal-condition { margin-right: auto; font-weight: 700; }
.summary-signal-detail { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 10px; margin-top: 3px; line-height: 1.35; }
.summary-signal-label { color: var(--muted); font-size: 0.9rem; }
.summary-signal-status { border: 1px solid currentColor; color: var(--signal-color); padding: 1px 6px; font-size: 0.8rem; font-weight: 700; white-space: nowrap; }
.summary-signal-value { color: var(--signal-color); font-weight: 700; }
.summary-signal-zero { color: #26643a; }
.summary-signal-advice { margin: 4px 0 0; font-size: 0.95rem; line-height: 1.4; }
.summary-actions { margin: 16px 0 4px; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .summary-signal-low { --signal-color: #9dddaf; }
  :root:not([data-theme="light"]) .summary-signal-watch { --signal-color: #f3c476; }
  :root:not([data-theme="light"]) .summary-signal-review { --signal-color: #ff9f9f; }
  :root:not([data-theme="light"]) .summary-signal-zero { color: #9dddaf; }
}
:root[data-theme="dark"] .summary-signal-low { --signal-color: #9dddaf; }
:root[data-theme="dark"] .summary-signal-watch { --signal-color: #f3c476; }
:root[data-theme="dark"] .summary-signal-review { --signal-color: #ff9f9f; }
:root[data-theme="dark"] .summary-signal-zero { color: #9dddaf; }

/* Record */
.persona-list { display: grid; gap: 10px; }
@media (min-width: 620px) { .persona-list { grid-template-columns: 1fr 1fr; } }
.persona-btn { flex-direction: column; align-items: flex-start; text-align: left; font-weight: 400; min-height: 96px; }
.persona-btn strong { font-size: 1.2rem; font-weight: 600; }
.persona-story { font-family: var(--mono); font-size: 0.85rem; font-weight: 400; color: var(--muted); }
.persona-btn[aria-pressed="true"] { background: var(--soft); box-shadow: inset 0 0 0 1px var(--ink); }
.demo-banner { background: var(--soft); border-left: 3px solid var(--line-strong); padding: 10px 14px; font-weight: 600; margin-top: 16px; }
.finding { padding: 10px 0; border-bottom: 1px solid var(--line); }
.finding:last-child { border-bottom: 0; }
.finding-label { font-weight: 600; }
.finding ul { margin: 4px 0 0; padding-left: 1.2em; }
details summary { min-height: 44px; display: flex; align-items: center; cursor: pointer; font-weight: 600; color: var(--ink); }

/* Summary editor */
.toggle-row { display: flex; align-items: center; gap: 12px; min-height: var(--tap); }
.toggle-row input[type="checkbox"] { width: 26px; height: 26px; accent-color: var(--ink); flex: none; }
.toggle-row label { font-weight: 600; }
.edit-section { border-top: 1px solid var(--line); padding-top: 8px; margin-top: 8px; }
.question-row { display: flex; gap: 8px; align-items: flex-start; margin: 8px 0; }
.question-row textarea { min-height: 64px; }
.question-row .btn { flex: none; }
.removed { color: var(--muted); text-decoration: line-through; }
.findings-edit { border-top: 1px solid var(--line); }
.findings-edit:first-child { border-top: 0; }
.findings-edit[open] > summary { margin-bottom: 4px; }
#next-title, #print-btn { scroll-margin-top: 104px; }

/* Printable sheet preview: a page of paper, light in both modes */
.sheet {
  --bg: #fdfcfa; --soft: #ecebe5; --ink: #191918; --muted: #62625b; --line: #d5d4cd; --line-strong: #84837b;
  --accent: #ae0808; --ok: #2e6b46; --danger: #ae0808; --on-ink: #f6f5f1;
  background: var(--bg); color: var(--ink); border: 1px solid var(--line-strong);
  padding: 24px; font-size: 1rem;
}
.sheet h1 { font-size: 1.7rem; margin-top: 0; }
.sheet h2 { font-size: 1.2rem; font-weight: 600; margin: 1.1em 0 0.3em; border-bottom: 1px solid var(--line); padding-bottom: 4px; }
.sheet .pre { white-space: pre-wrap; }
.sheet dl { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0; }
.sheet dl.pairs { grid-template-columns: minmax(0, 1fr) max-content; }
.sheet h3 { font-size: 1.05rem; margin: 0.8em 0 0.2em; }
.sheet p { margin: 0.3em 0; }
.sheet ul, .sheet ol { margin: 0.3em 0; padding-left: 1.3em; }
.sheet dt { font-weight: 600; }
.sheet dd { margin: 0; }

/* Trials */
.trial-list { list-style: none; padding: 0; border-top: 1px solid var(--line); }
.trial-list li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.trial-title { font-size: 1.15rem; font-weight: 600; line-height: 1.35; margin: 0 0 6px; }

/* Footer and dialog */
.footer { border-top: 1px solid var(--line); background: var(--bg); padding: 16px 0 max(16px, env(safe-area-inset-bottom)); font-size: 1rem; }
.footer-inner p { margin: 6px 0; }
.footer-inner .save-status { margin-top: 16px; }
.save-status { color: var(--ok); font-weight: 600; min-height: 1.5em; }
.dialog { border: 1px solid var(--line-strong); padding: 22px; max-width: min(520px, calc(100% - 32px)); color: var(--ink); background: var(--bg); }
.dialog::backdrop { background: var(--backdrop); }
.dialog h2 { margin-top: 0; }

@media (prefers-reduced-motion: no-preference) {
  .btn, .tile, .choice label { transition: background-color 120ms ease, border-color 120ms ease; }
}

/* Print: only the visit summary sheet */
@media print {
  @page { margin: 12mm; }
  body { background: #fff; font-size: 10pt; line-height: 1.35; color: #000; }
  .no-print, .skip-link, .footer, .appbar, .offline-banner, .standalone-delete, .patient-intro, .demo-card, dialog { display: none !important; }
  .screen { display: none !important; }
  .screen[data-screen="summary"] { display: block !important; }
  .wrap { width: 100%; padding: 0; }
  .demo-frame { border: 0; }
  .demo-frame-bar, .demo-frame-loader { display: none !important; }
  .demo-frame-content { min-height: 0; }
  .demo-frame-body { padding: 0; }
  .sheet { border: 0; box-shadow: none; padding: 0; font-size: 10pt; background: #fff; color: #000; }
  .sheet h1 { font-size: 16pt; margin-bottom: 4pt; }
  .sheet h2 { font-size: 12pt; margin: 8pt 0 2pt; break-after: avoid; }
  .sheet h3 { font-size: 10.5pt; margin: 5pt 0 1pt; break-after: avoid; }
  .sheet p, .sheet li { margin: 1pt 0; }
  .sheet .meta { font-size: 8.5pt; color: #333; }
  .sheet li, .sheet dt, .sheet dd { break-inside: avoid; }
  a { color: #000; text-decoration: none; }
}

/* Part E self-checks */
.choices-areas { grid-template-columns: 1fr 1fr; }
@media (min-width: 620px) { .choices-3 { grid-template-columns: repeat(3, 1fr); } .choices-areas { grid-template-columns: repeat(3, 1fr); } }