/* ============================================================
   CARE-PAC — Prototype site styles
   ------------------------------------------------------------
   Loaded after tokens.css. Components reference SEMANTIC tokens.
   ============================================================ */

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, ul, ol, dl, dd { margin: 0; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
img, picture, svg, video { max-width: 100%; display: block; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: var(--color-text-link); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--color-text-link-hover); }

/* ── Document defaults ──────────────────────────────────────── */
html {
  font-family: var(--font-family-sans);
  color-scheme: light dark;
  scroll-behavior: smooth;
}
body {
  background: var(--color-surface);
  color: var(--color-text-primary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  font-feature-settings: "kern", "liga", "ss01";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background var(--duration-normal) var(--easing-standard),
              color var(--duration-normal) var(--easing-standard);
}

/* ── Skip link ──────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  left: var(--space-2);
  top: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-text-primary);
  color: var(--color-surface);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-medium);
  transform: translateY(-200%);
  transition: transform var(--duration-normal) var(--easing-standard);
  z-index: var(--z-toast);
}
.skip-link:focus {
  transform: translateY(0);
  color: var(--color-surface);
}

/* ── Layout primitives ─────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

main { flex: 1 0 auto; }

.section {
  padding-block: var(--space-16);
}
.section--tight { padding-block: var(--space-12); }
.section--loose { padding-block: var(--space-24); }
.section--raised { background: var(--color-surface-raised); }
.section--inverse {
  background: var(--color-surface-inverse);
  color: var(--color-text-on-dark);
}
.section--inverse h1, .section--inverse h2, .section--inverse h3 { color: #FFFFFF; }
.section--inverse a { color: var(--color-sky-300); }

.section__divider {
  height: 1px;
  background: linear-gradient(to right,
    transparent,
    var(--color-border-subtle) 20%,
    var(--color-border-subtle) 80%,
    transparent);
  margin-block: var(--space-12);
  border: 0;
}

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  text-wrap: balance;
}
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); margin-block-end: var(--space-4); }
h3 { font-size: var(--text-xl); margin-block-end: var(--space-3); }
h4 { font-size: var(--text-lg); margin-block-end: var(--space-2); }

.display {
  font-size: var(--text-display);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  line-height: 1.05;
}

p { max-width: 70ch; }
p + p { margin-block-start: var(--space-4); }

.lede {
  font-size: var(--text-body-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  max-width: 60ch;
}

.prose {
  font-size: var(--text-body-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-primary);
  max-width: 65ch;
}
.prose p { max-width: none; }
.prose h2 { margin-block: var(--space-12) var(--space-3); }
.prose h3 { margin-block: var(--space-8) var(--space-2); }
.prose ul, .prose ol { margin-block: var(--space-4); padding-inline-start: var(--space-6); }
.prose li + li { margin-block-start: var(--space-2); }
.prose strong { color: var(--color-text-primary); font-weight: var(--font-weight-semibold); }
.prose a { font-weight: var(--font-weight-medium); }

.overline {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.audience-tag {
  --audience-color: var(--color-text-link);
  --audience-dot:   var(--color-text-link);
  --audience-bg:    var(--color-brand-surface-subtle);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--audience-bg);
  color: var(--audience-color);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--tracking-wide);
}
.audience-tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--audience-dot);
}

/* Per-audience tag accents — used on the three sibling pages.
   The dot carries identity in both light and dark modes. */
.audience-tag--patients   { --audience-color: var(--color-warning-700); --audience-dot: var(--color-warning-500); --audience-bg: var(--color-warning-100); }
.audience-tag--clinicians { --audience-color: var(--color-blue-700);    --audience-dot: var(--color-blue-600);    --audience-bg: var(--color-blue-50); }
.audience-tag--researchers{ --audience-color: var(--color-success-700); --audience-dot: var(--color-success-500); --audience-bg: var(--color-success-100); }
.dark .audience-tag--patients,
.dark .audience-tag--clinicians,
.dark .audience-tag--researchers {
  --audience-color: var(--color-text-primary);
  --audience-bg: rgba(255,255,255,0.08);
}
.dark .audience-tag--patients   { --audience-dot: var(--color-warning-text); }
.dark .audience-tag--researchers{ --audience-dot: var(--color-success-text); }
@media (prefers-color-scheme: dark) {
  :root:not(.light) .audience-tag--patients,
  :root:not(.light) .audience-tag--clinicians,
  :root:not(.light) .audience-tag--researchers {
    --audience-color: var(--color-text-primary);
    --audience-bg: rgba(255,255,255,0.08);
  }
  :root:not(.light) .audience-tag--patients   { --audience-dot: var(--color-warning-text); }
  :root:not(.light) .audience-tag--researchers{ --audience-dot: var(--color-success-text); }
}
/* ── Audience strip (sibling navigation across the three pages) ─ */
.audience-strip {
  background: var(--color-surface);
  border-block-end: 1px solid var(--color-border-subtle);
  position: sticky;
  top: 72px;            /* sit just below the sticky header */
  z-index: var(--z-docked);
  backdrop-filter: saturate(180%) blur(8px);
}
.audience-strip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  padding-block: var(--space-3);
}
.audience-strip__label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-tertiary);
  margin-inline-end: var(--space-2);
}
.audience-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 40px;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-default);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: background var(--duration-normal) var(--easing-standard),
              color var(--duration-normal) var(--easing-standard),
              border-color var(--duration-normal) var(--easing-standard);
}
.audience-pill::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--audience-pill-dot, var(--color-text-tertiary));
  flex-shrink: 0;
}
.audience-pill--patients   { --audience-pill-dot: var(--color-warning-500); }
.audience-pill--clinicians { --audience-pill-dot: var(--color-blue-600); }
.audience-pill--researchers{ --audience-pill-dot: var(--color-success-500); }
.audience-pill:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
  background: var(--color-surface-raised);
}
.audience-pill[aria-current="page"] {
  color: var(--color-text-primary);
  border-color: var(--audience-pill-dot);
  background: var(--color-surface-raised);
  box-shadow: inset 0 0 0 1px var(--audience-pill-dot);
  font-weight: var(--font-weight-semibold);
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-target-min);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-medium);
  font-size: var(--text-base);
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    background var(--duration-normal) var(--easing-standard),
    border-color var(--duration-normal) var(--easing-standard),
    color var(--duration-normal) var(--easing-standard),
    transform var(--duration-fast) var(--easing-standard);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--color-brand-surface);
  color: var(--color-text-on-brand);
}
.btn--primary:hover { background: var(--color-brand-surface-hover); color: var(--color-text-on-brand); }
.btn--primary:active { background: var(--color-brand-surface-active); }

.btn--secondary {
  background: transparent;
  color: var(--color-text-link);
  border-color: var(--color-text-link);
}
.btn--secondary:hover {
  background: var(--color-brand-surface-subtle);
  color: var(--color-text-link);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-primary);
  border-color: transparent;
}
.btn--ghost:hover {
  background: var(--color-surface-raised);
  color: var(--color-text-primary);
}

/* ── Header / nav ──────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: color-mix(in srgb, var(--color-surface) 92%, transparent);
  backdrop-filter: saturate(180%) blur(8px);
  border-block-end: 1px solid var(--color-border-subtle);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-3);
  min-height: 72px;
}
.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-tight);
}
.site-header__brand:hover { color: var(--color-text-primary); }
.site-header__brand svg {
  height: 36px;
  width: auto;
}
.site-nav {
  display: none;
}
@media (min-width: 1024px) {
  .site-nav { display: flex; align-items: center; gap: var(--space-1); }
}
.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target-min);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--text-sm);
  transition: background var(--duration-normal) var(--easing-standard),
              color var(--duration-normal) var(--easing-standard);
}
.site-nav a:hover { background: var(--color-surface-raised); color: var(--color-text-primary); }
.site-nav a[aria-current="page"] {
  color: var(--color-text-link);
  background: var(--color-brand-surface-subtle);
}

/* Audience-focused nav items grouped together (Patients & carers / Healthcare professionals / Researchers).
   Each link carries its own tint so the three read as a related set. Component-scoped custom properties
   carry per-mode values so the same rules drive light + dark. Scale and state-surface tokens are used
   as a deliberate decorative exception — promote to semantic --color-audience-* tokens if accents are kept. */
.site-nav__group {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

/* Light-mode defaults — scoped so they cascade into both nav variants */
.site-nav__group,
.mobile-nav__list {
  --audience-patients-bg:                 var(--color-warning-100);
  --audience-patients-bg-strong:          var(--color-warning-500);
  --audience-patients-text-strong:        var(--color-text-on-dark);

  --audience-professionals-bg:            var(--color-sky-200);
  --audience-professionals-bg-strong:     var(--color-sky-300);
  --audience-professionals-text-strong:   var(--color-text-link);

  --audience-researchers-bg:              var(--color-success-100);
  --audience-researchers-bg-strong:       var(--color-success-500);
  --audience-researchers-text-strong:     var(--color-text-on-dark);
}

/* Dark-mode overrides — translucent state-surface tints sit comfortably on navy.
   Active state keeps strong saturated colour with appropriately contrasted text. */
@media (prefers-color-scheme: dark) {
  :root:not(.light) .site-nav__group,
  :root:not(.light) .mobile-nav__list {
    --audience-patients-bg:               var(--color-warning-surface);
    --audience-patients-bg-strong:        var(--color-warning-500);
    --audience-patients-text-strong:      #FFFFFF;

    --audience-professionals-bg:          var(--color-info-surface);
    --audience-professionals-bg-strong:   var(--color-sky-400);
    --audience-professionals-text-strong: var(--color-navy-800);

    --audience-researchers-bg:            var(--color-success-surface);
    --audience-researchers-bg-strong:     var(--color-success-500);
    --audience-researchers-text-strong:   #FFFFFF;
  }
}
.dark .site-nav__group,
.dark .mobile-nav__list {
  --audience-patients-bg:                 var(--color-warning-surface);
  --audience-patients-bg-strong:          var(--color-warning-500);
  --audience-patients-text-strong:        #FFFFFF;

  --audience-professionals-bg:            var(--color-info-surface);
  --audience-professionals-bg-strong:     var(--color-sky-400);
  --audience-professionals-text-strong:   var(--color-navy-800);

  --audience-researchers-bg:              var(--color-success-surface);
  --audience-researchers-bg-strong:       var(--color-success-500);
  --audience-researchers-text-strong:     #FFFFFF;
}

/* Patients & carers — warm peach (light) / translucent amber (dark) */
.site-nav__group a[href="/patients-carers/"],
.mobile-nav__list-item--audience a[href="/patients-carers/"] {
  background: var(--audience-patients-bg);
}
.site-nav__group a[href="/patients-carers/"]:hover,
.site-nav__group a[href="/patients-carers/"][aria-current="page"],
.mobile-nav__list-item--audience a[href="/patients-carers/"]:hover,
.mobile-nav__list-item--audience a[href="/patients-carers/"][aria-current="page"] {
  background: var(--audience-patients-bg-strong);
  color: var(--audience-patients-text-strong);
}

/* Healthcare professionals — bright sky (light) / translucent blue (dark) */
.site-nav__group a[href="/healthcare-professionals/"],
.mobile-nav__list-item--audience a[href="/healthcare-professionals/"] {
  background: var(--audience-professionals-bg);
}
.site-nav__group a[href="/healthcare-professionals/"]:hover,
.site-nav__group a[href="/healthcare-professionals/"][aria-current="page"],
.mobile-nav__list-item--audience a[href="/healthcare-professionals/"]:hover,
.mobile-nav__list-item--audience a[href="/healthcare-professionals/"][aria-current="page"] {
  background: var(--audience-professionals-bg-strong);
  color: var(--audience-professionals-text-strong);
}

/* Researchers — fresh mint (light) / translucent green (dark) */
.site-nav__group a[href="/researchers/"],
.mobile-nav__list-item--audience a[href="/researchers/"] {
  background: var(--audience-researchers-bg);
}
.site-nav__group a[href="/researchers/"]:hover,
.site-nav__group a[href="/researchers/"][aria-current="page"],
.mobile-nav__list-item--audience a[href="/researchers/"]:hover,
.mobile-nav__list-item--audience a[href="/researchers/"][aria-current="page"] {
  background: var(--audience-researchers-bg-strong);
  color: var(--audience-researchers-text-strong);
}

.site-header__actions { display: flex; align-items: center; gap: var(--space-2); }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target-min);
  height: var(--touch-target-min);
  border-radius: var(--radius-full);
  background: transparent;
  border: 1px solid var(--color-border-default);
  color: var(--color-text-primary);
  transition: background var(--duration-normal) var(--easing-standard),
              border-color var(--duration-normal) var(--easing-standard);
}
.theme-toggle:hover { background: var(--color-surface-raised); }
.theme-toggle svg { width: 20px; height: 20px; }
.theme-toggle .icon-moon { display: none; }
.dark .theme-toggle .icon-sun { display: none; }
.dark .theme-toggle .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not(.light) .theme-toggle .icon-sun { display: none; }
  :root:not(.light) .theme-toggle .icon-moon { display: block; }
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target-min);
  height: var(--touch-target-min);
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid var(--color-border-default);
  color: var(--color-text-primary);
}
@media (min-width: 1024px) { .menu-toggle { display: none; } }

/* Mobile drawer */
.mobile-nav {
  display: none;
  border-block-start: 1px solid var(--color-border-subtle);
  background: var(--color-surface);
}
.mobile-nav[data-open="true"] { display: block; }
@media (min-width: 1024px) { .mobile-nav { display: none !important; } }
.mobile-nav__list {
  list-style: none;
  margin: 0;
  padding: var(--space-3) 0;
  display: flex;
  flex-direction: column;
}
.mobile-nav__list a {
  display: flex;
  align-items: center;
  min-height: var(--touch-target-min);
  padding: var(--space-3) var(--space-6);
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
}
.mobile-nav__list a[aria-current="page"] {
  color: var(--color-text-link);
  background: var(--color-brand-surface-subtle);
}

/* ── Hero — homepage cut-out (slide 1 / slide 4) ───────────── */
.hero {
  position: relative;
  isolation: isolate;
  background: var(--color-surface-raised);
  overflow: hidden;
}
.hero--inverse {
  background: var(--color-surface-inverse);
  color: var(--color-text-on-dark);
}
.hero__inner {
  position: relative;
  z-index: 2;
  padding-block: var(--space-20);
  display: grid;
  gap: var(--space-12);
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    padding-block: var(--space-24);
  }
}
.hero__title {
  font-size: var(--text-display);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.025em;
  line-height: 1.05;
  text-wrap: balance;
}
.hero--inverse .hero__title { color: #FFFFFF; }
.hero__lede {
  margin-block-start: var(--space-6);
  font-size: var(--text-body-lg);
  line-height: var(--leading-relaxed);
  max-width: 56ch;
  color: var(--color-text-secondary);
}
.hero--inverse .hero__lede { color: var(--color-navy-200); }
.hero__actions {
  margin-block-start: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.hero--inverse .btn--secondary {
  color: #FFFFFF;
  border-color: var(--color-sky-300);
}
.hero--inverse .btn--secondary:hover {
  background: rgba(255,255,255,0.08);
  color: #FFFFFF;
}

/* The big heart-mark cut-out — bleeds off the right edge */
.hero__mark {
  position: absolute;
  inset: 0 -10% 0 auto;
  width: min(70%, 720px);
  z-index: 1;
  pointer-events: none;
  opacity: 0.95;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.hero__mark svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 60px rgba(6, 43, 61, 0.12));
}
@media (max-width: 1023px) {
  .hero__mark {
    inset: auto -25% -25% auto;
    width: min(90%, 560px);
    opacity: 0.35;
  }
}

/* Inner page hero — slim coloured banner with faint motif */
.page-hero {
  --page-hero-bg: var(--color-surface-raised);
  --page-hero-accent: var(--color-text-link);
  position: relative;
  background: var(--page-hero-bg);
  padding-block: var(--space-16) var(--space-12);
  border-block-end: 1px solid var(--color-border-subtle);
  overflow: hidden;
  isolation: isolate;
}

/* Per-audience hero tints — match the audience nav buttons.
   Patients = warm peach (warning scale), Clinicians = clinical blue, Researchers = mint (success scale).
   Dark mode uses translucent state-surface tokens so the tint reads on navy. */
.page-hero--patients   { --page-hero-bg: var(--color-warning-50); --page-hero-accent: var(--color-warning-700); }
.page-hero--clinicians { --page-hero-bg: var(--color-blue-50);    --page-hero-accent: var(--color-blue-700); }
.page-hero--researchers{ --page-hero-bg: var(--color-success-50); --page-hero-accent: var(--color-success-700); }
.dark .page-hero--patients   { --page-hero-bg: var(--color-warning-surface); --page-hero-accent: var(--color-warning-text); }
.dark .page-hero--clinicians { --page-hero-bg: var(--color-info-surface);    --page-hero-accent: var(--color-info-text); }
.dark .page-hero--researchers{ --page-hero-bg: var(--color-success-surface); --page-hero-accent: var(--color-success-text); }
@media (prefers-color-scheme: dark) {
  :root:not(.light) .page-hero--patients   { --page-hero-bg: var(--color-warning-surface); --page-hero-accent: var(--color-warning-text); }
  :root:not(.light) .page-hero--clinicians { --page-hero-bg: var(--color-info-surface);    --page-hero-accent: var(--color-info-text); }
  :root:not(.light) .page-hero--researchers{ --page-hero-bg: var(--color-success-surface); --page-hero-accent: var(--color-success-text); }
}
.page-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--space-4);
}
.page-hero__title { font-size: var(--text-3xl); }
.page-hero__lede { font-size: var(--text-body-lg); color: var(--color-text-secondary); max-width: 56ch; }
.page-hero__motif {
  position: absolute;
  inset: -20% -10% auto auto;
  width: 320px;
  z-index: 1;
  opacity: 0.07;
  pointer-events: none;
}
.dark .page-hero__motif { opacity: 0.10; }
@media (prefers-color-scheme: dark) {
  :root:not(.light) .page-hero__motif { opacity: 0.10; }
}

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color var(--duration-normal) var(--easing-standard),
              box-shadow var(--duration-normal) var(--easing-standard),
              transform var(--duration-normal) var(--easing-standard);
}
.card--linked { text-decoration: none; color: inherit; }
.card--linked:hover {
  border-color: var(--color-border-default);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: inherit;
}
.card--raised { background: var(--color-surface-raised); }
.card__title { font-size: var(--text-lg); margin: 0; }
.card__meta {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  display: flex;
  gap: var(--space-3);
  align-items: center;
}
.card__cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-link);
}

.grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
}
.grid--3 {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) { .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }

.grid--2 {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) { .grid--2 { grid-template-columns: repeat(2, 1fr); } }

/* ── Plain-English summary block ──────────────────────────── */
.plain-english {
  background: var(--color-info-surface);
  border-left: 4px solid var(--color-text-link);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: grid;
  gap: var(--space-3);
}
.plain-english .overline { color: var(--color-info-text); }
.plain-english p {
  font-size: var(--text-body-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-primary);
  max-width: 60ch;
  margin: 0;
}

/* ── Callouts (medical-advice notice etc.) ─────────────────── */
.callout {
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--text-base);
}
.callout svg {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  margin-top: 2px;
}
.callout--warning { background: var(--color-warning-surface); color: var(--color-warning-text); }
.callout--info    { background: var(--color-info-surface);    color: var(--color-info-text); }
.callout--danger  { background: var(--color-danger-surface);  color: var(--color-danger-text); }
.callout strong { font-weight: var(--font-weight-semibold); }

/* ── Trial governance card ─────────────────────────────────── */
.governance {
  background: var(--color-surface-raised);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid var(--color-border-subtle);
}
.governance dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 768px) {
  .governance dl {
    grid-template-columns: minmax(140px, 200px) 1fr;
    gap: var(--space-3) var(--space-6);
  }
}
.governance dt {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.governance dd { margin: 0; color: var(--color-text-primary); }
.governance dd .tbc {
  display: inline-block;
  padding: 2px var(--space-2);
  background: var(--color-warning-surface);
  color: var(--color-warning-text);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
}

/* ── Form ──────────────────────────────────────────────────── */
.form-field {
  display: grid;
  gap: var(--space-2);
  margin-block-end: var(--space-5);
}
.form-field label {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}
.form-field .hint {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}
.form-field input,
.form-field textarea,
.form-field select {
  font: inherit;
  color: var(--color-text-primary);
  background: var(--color-surface);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  min-height: var(--touch-target-min);
  transition: border-color var(--duration-normal) var(--easing-standard),
              box-shadow var(--duration-normal) var(--easing-standard);
}
.form-field input:hover,
.form-field textarea:hover,
.form-field select:hover { border-color: var(--color-text-link); }
.form-field textarea { min-height: 140px; resize: vertical; }

/* ── Footer ────────────────────────────────────────────────── */
/* Footer is brand chrome — pinned to deep navy in both themes,
   independent of the surface tokens that flip on theme change. */
.site-footer {
  --footer-bg: #04212F;        /* navy-850, between navy-800 and navy-900 */
  --footer-text: #FFFFFF;
  --footer-text-muted: var(--color-navy-200);
  --footer-text-faint: var(--color-navy-300);
  --footer-link: var(--color-sky-200);
  --footer-rule: var(--color-navy-700);
  margin-top: var(--space-20);
  background: var(--footer-bg);
  color: var(--footer-text);
  padding-block: var(--space-16) var(--space-8);
}
.site-footer h2 {
  color: var(--footer-text);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-block-end: var(--space-4);
}
.site-footer a {
  color: var(--footer-link);
  text-decoration: none;
}
.site-footer a:hover { color: var(--footer-text); text-decoration: underline; }
.site-footer__columns {
  display: grid;
  gap: var(--space-10);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .site-footer__columns { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.site-footer__lede {
  color: var(--footer-text-muted);
  max-width: 38ch;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}
.site-footer ul[role="list"] {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.site-footer ul a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-size: var(--text-sm);
}
.site-footer__partners {
  margin-block-start: var(--space-12);
  padding-block-start: var(--space-8);
  border-block-start: 1px solid var(--footer-rule);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  align-items: center;
  color: var(--footer-text-muted);
  font-size: var(--text-sm);
}
.site-footer__partner-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
}
.site-footer__partner-strip span {
  padding: var(--space-2) var(--space-4);
  border: 1px dashed var(--color-navy-600);
  border-radius: var(--radius-md);
  color: var(--footer-text-muted);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
}
.site-footer__bottom {
  margin-block-start: var(--space-12);
  padding-block-start: var(--space-6);
  border-block-start: 1px solid var(--footer-rule);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--footer-text-faint);
}
/* Footer logo wordmark — inherits currentColor from the footer */
.site-footer .site-header__brand,
.site-footer svg { color: var(--footer-text); }

/* ── Cookie banner ─────────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  bottom: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  max-width: 640px;
  margin-inline: auto;
  background: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-overlay);
  display: none;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: wrap;
}
.cookie-banner[data-show="true"] { display: flex; }
.cookie-banner p {
  flex: 1 1 280px;
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}
.cookie-banner__actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }

/* ── Audience cards (homepage) ─────────────────────────────── */
.audience-card {
  --audience-card-accent: var(--color-text-link);
  position: relative;
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-top: 4px solid var(--audience-card-accent);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  isolation: isolate;
  transition: border-color var(--duration-normal) var(--easing-standard),
              box-shadow var(--duration-normal) var(--easing-standard),
              transform var(--duration-normal) var(--easing-standard);
}
.audience-card:hover {
  border-color: var(--audience-card-accent);
  border-top-color: var(--audience-card-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: inherit;
}
.audience-card--patients   { --audience-card-accent: var(--color-warning-500); }
.audience-card--clinicians { --audience-card-accent: var(--color-blue-600); }
.audience-card--researchers{ --audience-card-accent: var(--color-success-500); }
.audience-card__motif {
  position: absolute;
  inset: auto -20% -20% auto;
  width: 200px;
  opacity: 0.08;
  pointer-events: none;
  z-index: -1;
}
.audience-card h3 { font-size: var(--text-xl); }
.audience-card p { color: var(--color-text-secondary); }
.audience-card__cta {
  margin-top: auto;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-link);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* ── Timeline (project phases) ─────────────────────────────── */
.timeline {
  display: grid;
  gap: var(--space-6);
}
.timeline__item {
  display: grid;
  grid-template-columns: 8px 1fr;
  gap: var(--space-5);
  padding-block-end: var(--space-6);
  position: relative;
}
.timeline__item::before {
  content: "";
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  background: var(--color-brand-surface);
  margin-top: 6px;
  margin-left: -3px;
  box-shadow: 0 0 0 4px var(--color-brand-surface-subtle);
}
.timeline__item--past::before { background: var(--color-success-600); box-shadow: 0 0 0 4px var(--color-success-50); }
.timeline__item--current::before { background: var(--color-brand-surface); box-shadow: 0 0 0 4px var(--color-brand-surface-subtle); animation: pulse 2.4s var(--easing-standard) infinite; }
.timeline__item--future::before { background: var(--color-neutral-300); box-shadow: 0 0 0 4px var(--color-neutral-100); }
.timeline__date {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.timeline__title { font-size: var(--text-lg); margin-block-start: var(--space-1); margin-block-end: var(--space-2); }

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px var(--color-brand-surface-subtle); }
  50% { box-shadow: 0 0 0 8px var(--color-brand-surface-subtle); }
}

/* ── FAQ / disclosure ──────────────────────────────────────── */
.faq { display: grid; gap: var(--space-3); }
.faq details {
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  overflow: hidden;
}
.faq details[open] { border-color: var(--color-border-default); box-shadow: var(--shadow-xs); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: var(--space-4) var(--space-5);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-body-lg);
  color: var(--color-text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  min-height: var(--touch-target-min);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-regular);
  transition: transform var(--duration-normal) var(--easing-standard);
}
.faq details[open] summary::after { content: "\2013"; }
.faq__body {
  padding: 0 var(--space-5) var(--space-5);
  color: var(--color-text-secondary);
  font-size: var(--text-body-lg);
  line-height: var(--leading-relaxed);
}

/* ── Empty state ───────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  border: 1px dashed var(--color-border-default);
  border-radius: var(--radius-xl);
  display: grid;
  gap: var(--space-3);
  justify-items: center;
}
.empty-state svg { width: 80px; height: 80px; opacity: 0.5; }
.empty-state h3 { margin: 0; }
.empty-state p { color: var(--color-text-secondary); max-width: 50ch; }

/* ── Status pill ───────────────────────────────────────────── */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.pill--info     { background: var(--color-info-surface);    color: var(--color-info-text); }
.pill--success  { background: var(--color-success-surface); color: var(--color-success-text); }
.pill--warning  { background: var(--color-warning-surface); color: var(--color-warning-text); }
.pill--neutral  { background: var(--color-surface-raised);  color: var(--color-text-secondary); }