:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f4f6fa;
  --surface-2: #e8ecf3;
  --text: #0b1024;
  --muted: #4a5168;
  --dim: #888fa6;
  --border: #d4d9e5;
  --accent: #1d4ed8;
  --warn: #dc2626;
  --caution: #ca8a04;
  --cool-bar: #c5cad8;
  --code-bg: #e8ecf3;
  --asphalt: #0f1428;
  --lane-marker: #f4f6fa;
  --sage: #ca8a04; /* deprecated alias for --caution */
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0e1f;
    --surface: #111630;
    --surface-2: #1a2040;
    --text: #f8f9fc;
    --muted: #9da4be;
    --dim: #5d6585;
    --border: #262d47;
    --accent: #60a5fa;
    --warn: #f87171;
    --caution: #facc15;
    --cool-bar: #2a3050;
    --code-bg: #111630;
    --asphalt: #050815;
    --lane-marker: #4a5168;
    --sage: #facc15;
  }
}

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

html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.hero {
  width: 100%;
  background: var(--bg);
}
.hero picture, .hero img {
  display: block;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  height: auto;
}

/* Journey hero — full-width animated patient-journey illustration */
.journey-hero {
  background: linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%);
  padding: 56px 24px 48px;
  border-bottom: 1px solid var(--border);
}
.journey-inner {
  max-width: 980px;
  margin: 0 auto;
}
.journey-kicker {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--dim);
  margin: 0 0 24px;
  text-align: center;
}
.journey-svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 1000px;
  margin: 0 auto;
}
.journey-cap {
  font-size: 14px;
  color: var(--muted);
  margin: 18px auto 0;
  max-width: 720px;
  text-align: center;
  line-height: 1.5;
}

/* The roads */
.journey-svg .road {
  fill: none;
  stroke: var(--asphalt);
  stroke-width: 26;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.journey-svg .road-dash {
  fill: none;
  stroke: var(--lane-marker);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 14 14;
  opacity: 0.85;
  animation: lane-move 4s linear infinite;
}
.journey-ed .road-dash { animation-duration: 6s; opacity: 0.7; }
@keyframes lane-move {
  to { stroke-dashoffset: -56; }
}

/* Pulse circle traveling along each road via SMIL animateMotion */
.journey-svg .journey-pulse {
  filter: drop-shadow(0 0 4px currentColor);
}
.journey-svg .pulse-clinic { fill: var(--accent); color: var(--accent); }
.journey-svg .pulse-ed     { fill: var(--warn);   color: var(--warn);   }

/* Endpoint medallions */
.journey-svg .endpoint-bg-origin {
  fill: var(--surface-2);
  stroke: var(--border);
  stroke-width: 2;
}
.journey-svg .endpoint-bg-clinic {
  fill: var(--surface-2);
  stroke: var(--accent);
  stroke-width: 2.5;
}
.journey-svg .endpoint-bg-ed {
  fill: var(--surface-2);
  stroke: var(--warn);
  stroke-width: 2.5;
  animation: endpoint-pulse 2.4s ease-in-out infinite;
}
@keyframes endpoint-pulse {
  0%, 100% { stroke-opacity: 1; }
  50%      { stroke-opacity: 0.45; }
}
.journey-svg .endpoint-icon {
  overflow: visible;
  fill: none;
  stroke: var(--text);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.journey-endpoint-clinic .endpoint-icon { stroke: var(--accent); }
.journey-endpoint-ed .endpoint-icon { stroke: var(--warn); }
.journey-svg .endpoint-label {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  fill: var(--dim);
  text-anchor: middle;
}

/* Route + stat labels along the path */
.journey-svg .journey-route-label {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  fill: var(--dim);
}
.journey-clinic .journey-route-label { fill: var(--accent); }
.journey-ed .journey-route-label { fill: var(--warn); }
.journey-svg .journey-stat-label {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  font-size: 22px;
  font-weight: 700;
  fill: var(--text);
  font-variant-numeric: tabular-nums;
}
.journey-svg .journey-stat-unit {
  font-size: 12px;
  font-weight: 600;
  fill: var(--muted);
  letter-spacing: 0.04em;
}

/* Barrier medallion mid-route — matches endpoint-medallion language */
.journey-barrier .barrier-bg {
  fill: var(--warn);
  stroke: var(--bg);
  stroke-width: 3;
}
.journey-barrier .barrier-icon-svg {
  overflow: visible;
  fill: none;
  stroke: var(--bg);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (prefers-reduced-motion: reduce) {
  .journey-svg .road-dash,
  .journey-svg .endpoint-bg-ed { animation: none; }
  .journey-svg .journey-pulse { display: none; }
}

main {
  max-width: 820px;
  margin: 64px auto 48px;
  padding: 0 24px;
}

section { margin: 72px 0; }
section:first-child { margin-top: 0; }

h2 { font-size: 28px; margin: 0 0 24px; font-weight: 700; letter-spacing: -0.012em; line-height: 1.25; }
h3 { font-size: 18px; margin: 0 0 10px; font-weight: 700; letter-spacing: -0.005em; line-height: 1.3; color: var(--text); }

.kicker {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--dim);
  margin: 0 0 16px;
}
.caution-kicker {
  color: var(--caution);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.caution-kicker .icon {
  font-size: 14px;
  stroke-width: 2;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-thickness 0.15s;
}
a:hover { text-decoration-thickness: 2px; }

code {
  font-family: "SF Mono", "Menlo", "Monaco", "Consolas", monospace;
  font-size: 0.9em;
  background: var(--surface-2);
  padding: 1px 6px;
  border-radius: 4px;
}

/* The question */
.question .ask {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.012em;
  color: var(--text);
  margin: 0 0 24px;
}
.question .answer {
  font-size: 20px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
}
.question .answer strong { color: var(--warn); }

/* Reusable icon */
.icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* Stat cards */
.stats {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.stats li {
  margin: 0;
  padding: 22px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.stats li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 4px;
  background: var(--warn);
  border-radius: 0 0 3px 0;
}
.stat-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--warn) 12%, transparent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--warn);
}
.stat-icon-wrap .icon {
  font-size: 24px;
  stroke-width: 1.8;
}
.stat-num {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--warn);
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 14px;
  line-height: 1.35;
  color: var(--text);
  font-weight: 600;
  margin-top: 14px;
}
.stat-foot {
  font-size: 12px;
  color: var(--dim);
  margin-top: 10px;
}

/* Bar comparison rendered as road lanes */
.bars {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 24px 18px;
}
.bar-row {
  display: grid;
  grid-template-columns: 200px 1fr 60px;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}
.bar-row:last-of-type { margin-bottom: 0; }
.bar-label {
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.bar-label .icon { font-size: 16px; color: var(--dim); }
.bar-row:nth-child(2) .bar-label { color: var(--warn); }
.bar-row:nth-child(2) .bar-label .icon { color: var(--warn); }
.bar-track {
  height: 38px;
  background: var(--asphalt);
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  /* center dashed lane marking */
  background-image: linear-gradient(
    to right,
    var(--lane-marker) 0,
    var(--lane-marker) 14px,
    transparent 14px,
    transparent 26px
  );
  background-repeat: repeat-x;
  background-size: 26px 2px;
  background-position: left center;
}
.bar {
  height: 100%;
  position: relative;
  z-index: 1;
}
.bar-cool {
  background: linear-gradient(90deg, color-mix(in srgb, var(--cool-bar) 70%, transparent), var(--cool-bar));
}
.bar-warm {
  background: linear-gradient(90deg, color-mix(in srgb, var(--warn) 70%, transparent), var(--warn));
}
/* roadblock cap at end of barrier lane */
.bar-warm::after {
  content: "";
  position: absolute;
  top: -3px;
  right: -2px;
  bottom: -3px;
  width: 6px;
  background:
    repeating-linear-gradient(
      135deg,
      var(--text) 0 4px,
      var(--lane-marker) 4px 8px
    );
  border-radius: 1px;
}
.bar-value {
  font-size: 22px;
  font-weight: 700;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.cap {
  font-size: 14px;
  color: var(--muted);
  margin: 18px 4px 0;
  line-height: 1.5;
}

/* Robustness checks */
.check-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}
.check {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  position: relative;
  overflow: hidden;
}
.check::after {
  content: "";
  position: absolute;
  bottom: -28px;
  right: -28px;
  width: 140px;
  height: 140px;
  background-color: var(--accent);
  -webkit-mask-repeat: no-repeat;
          mask-repeat: no-repeat;
  -webkit-mask-position: center;
          mask-position: center;
  -webkit-mask-size: contain;
          mask-size: contain;
  opacity: 0.12;
  pointer-events: none;
}
.check:nth-child(1)::after {
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><path d='M12 3l8 3v6c0 5-3.4 8-8 9-4.6-1-8-4-8-9V6z'/><path d='M9 12l2 2 4-4.5'/></svg>");
          mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><path d='M12 3l8 3v6c0 5-3.4 8-8 9-4.6-1-8-4-8-9V6z'/><path d='M9 12l2 2 4-4.5'/></svg>");
}
.check:nth-child(2)::after {
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><rect x='8' y='8' width='12' height='12' rx='2'/><path d='M16 4H6a2 2 0 0 0-2 2v10'/></svg>");
          mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><rect x='8' y='8' width='12' height='12' rx='2'/><path d='M16 4H6a2 2 0 0 0-2 2v10'/></svg>");
}
.check:nth-child(3)::after {
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><path d='M3 20h18M6 20V11M11 20V7M16 20v-7M21 20v-4'/></svg>");
          mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><path d='M3 20h18M6 20V11M11 20V7M16 20v-7M21 20v-4'/></svg>");
}
.check > * { position: relative; z-index: 1; }
.check h3 {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.check h3 .icon {
  font-size: 20px;
  color: var(--accent);
  margin-top: 1px;
}
.check p { font-size: 15px; line-height: 1.55; color: var(--muted); margin: 0 0 10px; }
.check p:last-child { margin-bottom: 0; }
.check p strong { color: var(--text); }
.check em { color: var(--text); font-style: italic; }
.check-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  font-size: 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 16px;
}
.check-list li { color: var(--muted); font-variant-numeric: tabular-nums; }
.check-list li strong { color: var(--warn); font-weight: 700; }

/* ECG pulse divider — full-width thematic separator with draw-in animation */
.divider {
  margin: 72px auto;
  max-width: 100%;
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--dim);
}
.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 30%, var(--border) 70%, transparent);
}
.divider svg {
  width: 220px;
  height: 40px;
  fill: none;
  stroke: var(--warn);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.divider svg path {
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: draw-pulse 2.2s ease-out 0.3s forwards;
}
.divider:nth-of-type(2) svg path { animation-delay: 0.5s; }
@keyframes draw-pulse {
  to { stroke-dashoffset: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .divider svg path {
    stroke-dasharray: none;
    stroke-dashoffset: 0;
    animation: none;
  }
}

/* Implication: full-bleed tinted band, breaks out of the 820px column */
.implication {
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  padding: 64px max(24px, calc(50vw - 410px));
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  position: relative;
  overflow: hidden;
}
.implication::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 280px;
  height: 280px;
  background-color: var(--accent);
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1' stroke-linecap='round' stroke-linejoin='round'><path d='M7 11c0-3 2-5 4-5M7 11v3a3 3 0 0 0 3 3v0a3 3 0 0 0 0-6H7zM15 11c0-3 2-5 4-5M15 11v3a3 3 0 0 0 3 3v0a3 3 0 0 0 0-6h-3z'/></svg>");
          mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1' stroke-linecap='round' stroke-linejoin='round'><path d='M7 11c0-3 2-5 4-5M7 11v3a3 3 0 0 0 3 3v0a3 3 0 0 0 0-6H7zM15 11c0-3 2-5 4-5M15 11v3a3 3 0 0 0 3 3v0a3 3 0 0 0 0-6h-3z'/></svg>");
  -webkit-mask-repeat: no-repeat;
          mask-repeat: no-repeat;
  -webkit-mask-size: contain;
          mask-size: contain;
  opacity: 0.18;
  pointer-events: none;
}
.implication .kicker { text-align: center; }
.implication blockquote {
  margin: 0;
  padding: 0;
  border-left: none;
  background: transparent;
  border-radius: 0;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.implication blockquote p {
  font-size: 24px;
  line-height: 1.45;
  color: var(--text);
  margin: 0 0 22px;
  font-weight: 500;
  letter-spacing: -0.005em;
}
.implication blockquote p:last-child {
  margin-bottom: 0;
  font-size: 17px;
  color: var(--muted);
  font-weight: 400;
  line-height: 1.55;
}
.implication blockquote em { font-style: italic; color: var(--accent); font-weight: 600; }

/* Caveat */
.caveat p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}
.caveat strong { color: var(--text); font-variant-numeric: tabular-nums; }

/* Deliverable cards */
.deliverables {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.deliverables li { margin: 0; }
.deliverables a {
  display: block;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s, transform 0.15s;
  height: 100%;
}
.deliverables a:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}
.deliverables .label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  font-weight: 700;
}
.deliverables .title {
  display: block;
  font-weight: 700;
  font-size: 17px;
  margin: 6px 0 6px;
}
.deliverables .desc {
  display: block;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.45;
}

footer {
  max-width: 820px;
  margin: 80px auto 40px;
  padding: 32px 24px 0;
  border-top: 1px solid var(--border);
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.6;
}
footer p { margin: 0 0 6px; color: var(--muted); }
footer a { color: var(--muted); }
footer a:hover { color: var(--accent); }

@media (max-width: 760px) {
  body { font-size: 16px; }
  main { margin: 40px auto; padding: 0 18px; }
  section { margin: 56px 0; }
  .question .ask { font-size: 22px; }
  .question .answer { font-size: 17px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 38px; }
  .stat-icon-wrap { width: 40px; height: 40px; }
  .stat-icon-wrap .icon { font-size: 20px; }
  .check-grid { grid-template-columns: 1fr; }
  .check-list { grid-template-columns: 1fr 1fr; }
  .deliverables { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 1fr; gap: 8px; }
  .bar-value { text-align: left; }
  .bar-track { height: 28px; }
  .bars { padding: 20px; }
  .divider { margin: 48px auto; gap: 12px; }
  .divider svg { width: 140px; height: 28px; }
  .implication { padding: 44px 24px; }
  .implication::before { width: 180px; height: 180px; top: -20px; right: -20px; }
  .implication blockquote p { font-size: 18px; }
  .implication blockquote p:last-child { font-size: 15px; }
  .journey-hero { padding: 36px 16px 32px; }
  .journey-kicker { font-size: 10px; margin-bottom: 16px; }
  .journey-svg .journey-route-label,
  .journey-svg .endpoint-label { font-size: 9px; letter-spacing: 0.1em; }
  .journey-svg .journey-stat-label { font-size: 18px; }
  .journey-svg .journey-stat-unit { font-size: 10px; }
}

@media (max-width: 460px) {
  .stats { grid-template-columns: 1fr; }
  .check-list { grid-template-columns: 1fr; }
}