/* ============================================================================
   THRESHOLD — public.css
   The public, unauthenticated surface: homepage, contact, emergency contacts,
   terms, privacy, data deletion.

   Load order: base.css -> tiers.css -> public.css

   WHY A SEPARATE STYLESHEET
   The app surfaces are a *tool* — dense, tier-driven, built for someone who may
   be impaired. These pages are *documents*, read by someone calm: a family
   member deciding whether to trust this, or an evaluator reading the policies.
   Different job, different rhythm. They share the tokens so they never feel
   like a different product, but they do not share the app's chrome.

   Everything here authors against the tokens in base.css. No new colours, no
   new type scale, no hardcoded hex values.
   ========================================================================= */

/* ------------------------------------------------------------- page frame - */

/* Public pages sit at tier 0 permanently: the accent stays teal and steady.
   A marketing page must never borrow the visual language of an emergency. */
.public {
  --density: 1;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

.public-main {
  flex: 1;
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
  padding: var(--sp-6) var(--sp-5) var(--sp-8);
}

/* Long-form legal and policy text. 68ch keeps line length in the comfortable
   reading band — legal copy that nobody can read is functionally undisclosed. */
.doc { max-width: 68ch; }
.doc h2 {
  font-size: var(--step-3);
  font-weight: 550;
  letter-spacing: var(--track-tight);
  margin-top: var(--sp-7);
  margin-bottom: var(--sp-3);
  color: var(--ink);
}
.doc h3 {
  font-size: var(--step-1);
  font-weight: 600;
  margin-top: var(--sp-5);
  margin-bottom: var(--sp-2);
  color: var(--ink);
}
.doc p, .doc li {
  color: var(--ink-2);
  margin-bottom: var(--sp-3);
  text-wrap: pretty;
}
.doc ul { margin-bottom: var(--sp-4); }
.doc li {
  padding-left: var(--sp-4);
  position: relative;
}
/* A hairline rather than a bullet glyph: quieter, and it aligns to the grid. */
.doc li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: var(--sp-3);
  height: 1px;
  background: var(--line-strong);
}
.doc strong { color: var(--ink); font-weight: 600; }

/* --------------------------------------------------------------- masthead - */

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklab, var(--canvas-deep) 70%, transparent);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.masthead nav {
  display: flex;
  gap: var(--sp-5);
  align-items: center;
  flex-wrap: wrap;
}

.masthead nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: var(--step-00);
  transition: color var(--dur-1) var(--ease);
}
.masthead nav a:hover { color: var(--ink); }
/* aria-current marks the active page for screen readers; this is the visual
   counterpart of that same information. */
.masthead nav a[aria-current="page"] { color: var(--accent); }

/* ------------------------------------------------------------------ hero - */

.hero {
  padding: var(--sp-8) 0 var(--sp-7);
  border-bottom: 1px solid var(--line);
}

.hero h1 {
  font-size: var(--step-6);
  font-weight: 550;
  letter-spacing: var(--track-tight);
  line-height: 1.02;
  max-width: 16ch;
  margin-bottom: var(--sp-5);
}

.hero .lede { max-width: 46ch; margin-bottom: var(--sp-6); }

.hero-actions { display: flex; gap: var(--sp-3); flex-wrap: wrap; }

/* --------------------------------------------------------------- buttons - */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  color: var(--ink);
  text-decoration: none;
  font-size: var(--step-0);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--dur-1) var(--ease),
              border-color var(--dur-1) var(--ease),
              transform var(--dur-1) var(--ease);
}
.btn:hover { background: var(--surface-3); border-color: var(--accent-line); }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
  font-weight: 600;
}
.btn-primary:hover {
  background: color-mix(in oklab, var(--accent) 88%, white);
  border-color: transparent;
}

/* The emergency button is the one place we break the restrained palette.
   It is always red regardless of tier, always the largest target on the page,
   and never competes with a neighbouring control for attention. */
.btn-emergency {
  background: var(--danger);
  color: #fff;
  border-color: transparent;
  font-weight: 650;
  font-size: var(--step-1);
  padding: var(--sp-4) var(--sp-6);
}
.btn-emergency:hover { background: color-mix(in oklab, var(--danger) 88%, white); }

/* ----------------------------------------------------------------- cards - */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}

.card {
  padding: var(--sp-5);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.card h3 {
  font-size: var(--step-1);
  font-weight: 600;
  margin-bottom: var(--sp-2);
  color: var(--ink);
}
.card p { color: var(--ink-2); font-size: var(--step-0); }

/* ------------------------------------------------------ emergency contacts */

/* This block is deliberately the loudest thing on any page it appears on.
   Someone may land here mid-crisis having never seen this site before, and
   the number they need must be reachable without reading a sentence first. */
.emergency-band {
  border: 1px solid color-mix(in oklab, var(--danger) 40%, transparent);
  border-radius: var(--radius-lg);
  background: color-mix(in oklab, var(--danger) 9%, var(--surface));
  padding: var(--sp-5);
  margin-bottom: var(--sp-6);
}

.emergency-band .label { color: color-mix(in oklab, var(--danger) 70%, var(--ink)); }

/* A dialable number. tel: links matter here — on a phone this is one tap, and
   a tap is all we can assume someone has. */
.tel {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
  flex-wrap: wrap;
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
}
.tel:last-child { border-bottom: 0; }

.tel-number {
  font-family: var(--font-data);
  font-size: var(--step-4);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: var(--track-tight);
  font-variant-numeric: tabular-nums;
}
a.tel:hover .tel-number { color: var(--accent); }

.tel-name { font-size: var(--step-1); font-weight: 550; color: var(--ink); }
.tel-note { font-size: var(--step-00); color: var(--ink-3); flex-basis: 100%; }

/* An unverified number must look different from a verified one. Honesty about
   data quality is a product feature here, not an admission of unfinished work. */
.unverified {
  display: inline-block;
  font-size: var(--step-000);
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--accent-2);
  border: 1px solid color-mix(in oklab, var(--accent-2) 35%, transparent);
  border-radius: var(--radius-pill);
  padding: 2px var(--sp-2);
  vertical-align: middle;
}

/* ------------------------------------------------------------------ forms - */

.field { margin-bottom: var(--sp-4); }
.field label {
  display: block;
  font-size: var(--step-00);
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: var(--sp-2);
}
.field input, .field textarea, .field select {
  width: 100%;
  padding: var(--sp-3);
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--canvas-deep);
  color: var(--ink);
  font-size: var(--step-0);
}
.field textarea { min-height: 8rem; resize: vertical; }
.field-hint { font-size: var(--step-00); color: var(--ink-3); margin-top: var(--sp-2); }

/* ---------------------------------------------------------------- footer - */

.public-footer {
  border-top: 1px solid var(--line);
  padding: var(--sp-6) var(--sp-5);
  background: var(--canvas-deep);
}
.footer-inner {
  max-width: 72rem;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: var(--sp-6);
  flex-wrap: wrap;
}
.public-footer nav { display: flex; flex-direction: column; gap: var(--sp-2); }
.public-footer a {
  color: var(--ink-3);
  text-decoration: none;
  font-size: var(--step-00);
}
.public-footer a:hover { color: var(--ink); }
.public-footer .label { margin-bottom: var(--sp-1); }

/* A standing crisis line in the footer of every page. Someone who scrolls to
   the bottom looking for help should find it there. */
.footer-crisis {
  margin-top: var(--sp-5);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--line);
  max-width: 72rem;
  margin-inline: auto;
  font-size: var(--step-00);
  color: var(--ink-3);
}
.footer-crisis a { color: var(--accent); text-decoration: none; }

/* --------------------------------------------------------------- callouts - */

.note {
  border-left: 2px solid var(--accent-line);
  padding: var(--sp-3) 0 var(--sp-3) var(--sp-4);
  margin: var(--sp-5) 0;
  color: var(--ink-2);
  background: linear-gradient(90deg, var(--accent-soft), transparent 70%);
}

.updated {
  font-family: var(--font-data);
  font-size: var(--step-00);
  color: var(--ink-3);
  margin-bottom: var(--sp-6);
}

/* --------------------------------------------------------------- responsive */

@media (max-width: 46rem) {
  .masthead { flex-direction: column; align-items: flex-start; gap: var(--sp-3); }
  .masthead nav { gap: var(--sp-4); }
  .public-main { padding: var(--sp-5) var(--sp-4) var(--sp-7); }
  .hero { padding: var(--sp-6) 0 var(--sp-5); }
  .tel-number { font-size: var(--step-3); }
}

/* Respect the user's motion preference. Someone with vestibular sensitivity
   should not be made unwell by a page about their own health. */
@media (prefers-reduced-motion: reduce) {
  .btn, .masthead nav a, .tel { transition: none; }
}

/* ==========================================================================
   ARCHIVE-ALIGNED HOMEPAGE
   Mirrors the supplied Threshold Website direction: warm paper, editorial
   serif display type, a black crisis utility strip, teal identity mark, and
   an instrument-like product preview. The interface remains real HTML/CSS.
   ========================================================================== */

.public--archive {
  background: var(--canvas);
}

.archive-wrap {
  width: min(76rem, calc(100% - 3rem));
  margin-inline: auto;
}

.crisis-strip {
  min-height: 2.4rem;
  padding: 0.5rem max(1.5rem, calc((100vw - 76rem) / 2));
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.25rem;
  background: #0d1112;
  color: #f7f8fa;
  font: 600 var(--step-000) / 1.2 var(--font-data);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.crisis-strip p { margin-right: auto; color: #cbd3d8; }
.crisis-strip a { color: #f7f8fa; text-decoration: none; }
.crisis-strip a:hover { text-decoration: underline; }
.crisis-strip__call {
  padding: 0.28rem 0.65rem;
  border-radius: var(--radius-pill);
  background: var(--danger);
}

.masthead--archive {
  top: 0;
  min-height: 4.75rem;
  padding-inline: max(1.5rem, calc((100vw - 76rem) / 2));
  background: color-mix(in oklab, var(--canvas) 92%, transparent);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font: 500 var(--step-2) / 1 var(--font-voice);
  text-decoration: none;
}
.brand__mark {
  width: 1.05rem;
  height: 1.05rem;
  display: block;
  background: var(--accent);
  box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--ink) 12%, transparent);
}
.masthead__account { display: flex; align-items: center; gap: 0.8rem; }
.account-link {
  color: var(--ink);
  font-size: var(--step-00);
  font-weight: 650;
  text-decoration: none;
}
.account-link:hover { color: var(--accent); }

.btn-pill { border-radius: var(--radius-pill); }
.btn-large { min-height: 3.2rem; padding: 0.85rem 1.35rem; }

.archive-hero {
  padding: clamp(4.5rem, 9vw, 8rem) 0 clamp(4rem, 8vw, 7rem);
  overflow: hidden;
}
.archive-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(24rem, 0.95fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
}
.archive-kicker {
  margin-bottom: 1.25rem;
  color: var(--accent);
  font: 650 var(--step-000) / 1.25 var(--font-data);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.archive-kicker--plain { color: var(--ink-3); }
.archive-hero h1,
.archive-heading h2,
.archive-pillars h2,
.archive-not-built h2,
.archive-cta h2 {
  font-family: var(--font-voice);
  font-weight: 400;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
.archive-hero h1 {
  max-width: 11ch;
  font-size: clamp(3.4rem, 6.8vw, 6.7rem);
  line-height: 0.92;
}
.archive-hero__lede {
  max-width: 41rem;
  margin-top: 2rem;
  color: var(--ink-2);
  font-size: var(--step-1);
  line-height: 1.65;
}
.archive-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}
.text-action {
  padding: 0.6rem;
  color: var(--ink-2);
  font-weight: 600;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}
.archive-proofline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.35rem;
  margin-top: 2.25rem;
  color: var(--ink-3);
  font: 500 var(--step-000) / 1.4 var(--font-data);
}
.archive-proofline li::before { content: "✓"; margin-right: 0.45rem; color: var(--accent); }

.product-window {
  border: 1px solid var(--line-strong);
  border-radius: 1.25rem;
  background: var(--surface);
  box-shadow: var(--shadow-2);
  overflow: hidden;
  transform: rotate(1.2deg);
}
.product-window__top {
  min-height: 3.15rem;
  padding: 0.9rem 1.1rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  color: var(--ink-3);
  font: 600 var(--step-000) / 1 var(--font-data);
}
.product-window__status { color: var(--accent); }
.product-window__body { padding: clamp(1.5rem, 4vw, 2.5rem); }
.product-window__eyebrow {
  color: var(--ink-3);
  font: 600 var(--step-000) / 1.3 var(--font-data);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.product-window__message {
  max-width: 18ch;
  margin-top: 1.1rem;
  font: 400 var(--step-3) / 1.18 var(--font-voice);
}
.product-window__rungs {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.45rem;
  margin-top: 2rem;
}
.product-window__rungs span {
  min-height: 2rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  color: var(--ink-3);
  font-family: var(--font-data);
}
.product-window__rungs .is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}
.product-window__voice {
  min-height: 7rem;
  margin: 1.5rem 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 0.65rem;
  border: 1px solid var(--accent-line);
  border-radius: 0.9rem;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 650;
}
.product-window__mic {
  width: 1.4rem;
  height: 2rem;
  border: 2px solid currentColor;
  border-radius: var(--radius-pill);
}
.product-window__facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}
.product-window__facts div { padding: 0.75rem; background: var(--surface); }
.product-window__facts dt { color: var(--ink-3); font-size: var(--step-000); }
.product-window__facts dd { margin-top: 0.25rem; font: 600 var(--step-000) / 1.35 var(--font-data); }

.archive-stats {
  border-block: 1px solid var(--line);
  background: var(--canvas-deep);
}
.archive-stats__grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.archive-stats__grid > div {
  padding: 2.2rem;
  display: flex;
  align-items: baseline;
  gap: 1rem;
  border-right: 1px solid var(--line);
}
.archive-stats__grid > div:last-child { border-right: 0; }
.archive-stats strong { font: 400 var(--step-4) / 1 var(--font-voice); color: var(--accent); }
.archive-stats span { color: var(--ink-2); font-size: var(--step-00); }

.archive-section { padding: clamp(5rem, 10vw, 9rem) 0; }
.archive-section--soft { background: var(--canvas-deep); }
.archive-heading { max-width: 51rem; }
.archive-heading h2,
.archive-pillars h2,
.archive-not-built h2,
.archive-cta h2 { font-size: clamp(2.4rem, 5vw, 4.7rem); line-height: 1.02; }
.archive-heading > p:last-child,
.archive-pillars article > div > p:last-child {
  max-width: 44rem;
  margin-top: 1.5rem;
  color: var(--ink-2);
  font-size: var(--step-1);
}

.ladder-demo {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface);
  overflow: hidden;
}
.ladder-demo__rungs { padding: clamp(1.5rem, 4vw, 3rem); }
.ladder-demo__rungs li:not(.ladder-demo__line) {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.ladder-demo__rungs b { font-family: var(--font-data); color: var(--accent); }
.ladder-demo__rungs small { color: var(--ink-3); }
.ladder-demo__line {
  margin: 0.45rem 0;
  padding: 0.45rem;
  border: 1px dashed var(--danger);
  color: var(--danger);
  font: 600 var(--step-000) / 1.2 var(--font-data);
  text-align: center;
  text-transform: uppercase;
}
.emergency-preview { padding: clamp(1.5rem, 4vw, 3rem); background: #111517; color: #f7f8fa; }
.emergency-preview > p { color: #ff766d; font: 600 var(--step-000) / 1 var(--font-data); text-transform: uppercase; }
.emergency-preview > a {
  margin-top: 2rem;
  min-height: 9rem;
  padding: 1.5rem;
  display: grid;
  place-items: center;
  align-content: center;
  border-radius: 0.8rem;
  background: #d92d20;
  color: white;
  font-size: var(--step-3);
  font-weight: 750;
  text-decoration: none;
}
.emergency-preview small { display: block; color: #cbd3d8; font-size: var(--step-000); font-weight: 400; }
.emergency-preview > div { margin-top: 1rem; padding: 1rem; border: 1px solid #384147; }
.emergency-preview > div span { display: block; margin-top: 0.35rem; color: #dce2e6; }
.emergency-preview > small { margin-top: 1rem; }

.archive-pillars { display: grid; gap: clamp(5rem, 10vw, 9rem); }
.archive-pillars article { display: grid; grid-template-columns: 1fr minmax(20rem, 0.8fr); gap: clamp(2rem, 8vw, 8rem); align-items: center; }
.archive-pillars article:nth-child(even) > div:first-child { order: 2; }
.archive-visual {
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--line-strong);
  border-radius: 1rem;
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.archive-visual > span { color: var(--ink-3); font: 600 var(--step-000) / 1 var(--font-data); text-transform: uppercase; }
.archive-visual > strong { display: block; margin-top: 3rem; font: 400 var(--step-3) / 1.16 var(--font-voice); color: var(--danger); }
.archive-visual li { padding: 1rem 0; display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); }
.archive-visual li:first-child { margin-top: 1.5rem; }
.archive-visual li:last-child { border: 0; }
.archive-visual li b { color: var(--accent); font-family: var(--font-data); }

.archive-not-built { padding: clamp(5rem, 10vw, 9rem) 0; background: #101416; color: #f4f6f7; }
.archive-not-built h2 { max-width: 13ch; }
.archive-not-built__grid { margin-top: 4rem; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid #343c40; }
.archive-not-built article { min-height: 14rem; padding: 1.5rem; border-right: 1px solid #343c40; }
.archive-not-built article:last-child { border: 0; }
.archive-not-built h3 { font: 400 var(--step-2) / 1.1 var(--font-voice); }
.archive-not-built article p { margin-top: 3rem; color: #aeb9be; }

.archive-cta { padding: clamp(4rem, 8vw, 7rem) 0; background: var(--accent); color: var(--accent-ink); }
.archive-cta__inner { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 3rem; align-items: end; }
.archive-cta p { margin-top: 1rem; max-width: 40rem; opacity: 0.82; }
.archive-cta .archive-actions { justify-content: flex-end; }
.archive-cta__primary { background: var(--accent-ink); color: var(--accent); border-color: transparent; }
.archive-cta__secondary { background: transparent; color: var(--accent-ink); border-color: color-mix(in oklab, var(--accent-ink) 48%, transparent); }

@media (max-width: 62rem) {
  .masthead--archive nav { display: none; }
  .archive-hero__grid,
  .ladder-demo,
  .archive-pillars article,
  .archive-cta__inner { grid-template-columns: 1fr; }
  .archive-pillars article:nth-child(even) > div:first-child { order: 0; }
  .archive-not-built__grid { grid-template-columns: repeat(2, 1fr); }
  .archive-not-built article:nth-child(2) { border-right: 0; }
  .archive-not-built article:nth-child(-n + 2) { border-bottom: 1px solid #343c40; }
  .archive-cta .archive-actions { justify-content: flex-start; }
}

@media (max-width: 46rem) {
  .archive-wrap { width: min(100% - 2rem, 76rem); }
  .crisis-strip { justify-content: space-between; gap: 0.65rem; padding-inline: 1rem; }
  .crisis-strip p, .crisis-strip a:nth-of-type(2) { display: none; }
  .masthead--archive { flex-direction: row; padding-inline: 1rem; }
  .masthead__account [data-theme-toggle], .account-link { display: none; }
  .archive-hero { padding-top: 4rem; }
  .archive-hero__grid { gap: 3rem; }
  .archive-hero h1 { font-size: clamp(3.25rem, 15vw, 5rem); }
  .product-window { transform: none; }
  .product-window__facts { grid-template-columns: 1fr; }
  .archive-stats__grid { grid-template-columns: 1fr; }
  .archive-stats__grid > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .ladder-demo__rungs li:not(.ladder-demo__line) { grid-template-columns: 2rem 1fr; }
  .ladder-demo__rungs small { grid-column: 2; }
  .archive-not-built__grid { grid-template-columns: 1fr; }
  .archive-not-built article { min-height: 11rem; border-right: 0; border-bottom: 1px solid #343c40; }
}