:root {
  --ink: #142033;
  --muted: #5f6f80;
  --line: #dbe5ed;
  --paper: #f6f8f8;
  --white: #fff;
  --navy: #102940;
  --teal: #157978;
  --red: #ca4e48;
  --gold: #b9852a;
  --blue: #2b63bd;
  --shadow: 0 22px 54px rgba(16, 41, 64, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.58;
}
a { color: inherit; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 68px;
  padding: 10px clamp(16px, 4vw, 48px);
  background: rgba(255,255,255,0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 250px;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--navy), var(--teal));
  color: var(--white);
  font-weight: 900;
}
.brand strong,
.brand small { display: block; letter-spacing: 0; }
.brand strong { line-height: 1.1; }
.brand small { color: var(--red); font-size: .68rem; font-weight: 900; text-transform: uppercase; }
nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 14px;
  color: var(--muted);
  font-weight: 800;
  font-size: .9rem;
}
nav a { text-decoration: none; }
nav a.active,
nav a:hover { color: var(--teal); }
.hero {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(320px, 1.05fr);
  min-height: calc(100vh - 68px);
  background: var(--navy);
  color: var(--white);
}
.hero-media {
  position: relative;
  min-height: 360px;
  overflow: hidden;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(16,41,64,.18), rgba(16,41,64,.82));
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-copy {
  align-self: center;
  max-width: 900px;
  padding: clamp(34px, 6vw, 76px);
}
.eyebrow {
  margin: 0 0 10px;
  color: var(--red);
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero .eyebrow { color: #ffbbb4; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  color: var(--navy);
  line-height: 1.08;
  letter-spacing: 0;
}
.hero h1 {
  color: var(--white);
  font-size: clamp(2.25rem, 5.6vw, 5.25rem);
  margin-bottom: 18px;
}
.lede {
  color: rgba(255,255,255,.88);
  font-size: clamp(1.02rem, 1.6vw, 1.24rem);
  max-width: 760px;
}
.hero-actions,
.directory-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--navy);
  font-weight: 900;
  text-decoration: none;
}
.button.primary {
  border-color: var(--red);
  background: var(--red);
  color: var(--white);
}
.safety-band {
  padding: 16px clamp(16px, 5vw, 72px);
  background: #fff3dc;
  border-top: 1px solid #f0d6a3;
  border-bottom: 1px solid #f0d6a3;
  color: #4a3515;
}
.section {
  padding: clamp(38px, 6vw, 86px) clamp(16px, 5vw, 72px);
}
.section-head {
  max-width: 850px;
  margin-bottom: 22px;
}
.section-head h2,
.question-section h2,
.directory-section h2,
.refs-section h2 {
  font-size: clamp(1.85rem, 3.6vw, 3.6rem);
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.card {
  min-height: 220px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(16,41,64,.06);
}
.card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}
.card p,
.feature-block p,
.directory-section p,
footer p {
  color: var(--muted);
}
.split-section {
  display: grid;
  gap: 18px;
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.feature-block {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 18px;
  max-width: 1100px;
}
.feature-block span {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 8px;
  background: #e8f4f2;
  color: var(--teal);
  font-weight: 900;
}
.feature-block h2 {
  font-size: clamp(1.5rem, 3vw, 2.7rem);
}
.question-section {
  display: grid;
  grid-template-columns: minmax(260px, .45fr) minmax(0, 1fr);
  gap: clamp(22px, 5vw, 60px);
}
.question-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.question-list li {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  font-weight: 760;
}
.calculator-section {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.guideline-section {
  background: #fbfbf7;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.guideline-section .section-head p {
  color: var(--muted);
  max-width: 980px;
}
.guideline-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.guideline-grid article {
  min-height: 210px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}
.guideline-grid h3 {
  margin-bottom: 9px;
  font-size: 1.05rem;
}
.guideline-grid p {
  color: var(--muted);
}
.calculator-section .section-head p {
  color: var(--muted);
  max-width: 980px;
}
.calculator-grid-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 16px;
  align-items: start;
}
.calculator-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbfd;
}
.calculator-head h3 {
  margin: 0 0 4px;
  font-size: 1.1rem;
}
.calculator-head p {
  margin: 0;
  color: var(--muted);
  font-size: .92rem;
}
.calculator-card fieldset {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  border: 0;
}
.calculator-card legend,
.calculator-card label,
.cvd-grid label {
  color: var(--navy);
  font-size: .9rem;
  font-weight: 820;
}
.calculator-card label {
  display: flex;
  gap: 9px;
  align-items: flex-start;
}
.calculator-card input[type="checkbox"] {
  margin-top: 4px;
}
.calculator-card select,
.calculator-card input[type="number"] {
  width: 100%;
  min-height: 42px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
}
.calculator-card .field {
  display: grid;
  gap: 6px;
}
.cvd-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.cvd-grid label {
  display: grid;
  gap: 6px;
}
.score-output {
  display: grid;
  gap: 5px;
  min-height: 74px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--navy);
}
.score-output strong {
  font-size: 1.25rem;
}
.score-output span,
.calculator-note {
  color: var(--muted);
}
.calculator-note {
  max-width: 1000px;
  margin: 14px 0 0;
  font-size: .94rem;
}
.directory-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .42fr);
  gap: 24px;
  align-items: center;
  background: #eef5f5;
}
.refs-section {
  display: grid;
  grid-template-columns: minmax(260px, .38fr) minmax(0, 1fr);
  gap: 24px;
}
.ref-grid,
.network-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.ref-grid a,
.network-strip a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--blue);
  font-weight: 850;
  text-decoration: none;
}
.network-strip {
  padding: 18px clamp(16px, 5vw, 72px);
  border-top: 1px solid var(--line);
}
footer {
  padding: 26px clamp(16px, 5vw, 72px);
  background: var(--navy);
}
footer p {
  max-width: 900px;
  margin: 0;
  color: rgba(255,255,255,.78);
}
.theme-ablation .brand-mark,
.theme-ablation .button.primary { background: #ca4e48; border-color: #ca4e48; }
.theme-causes .brand-mark,
.theme-causes .button.primary { background: #157978; border-color: #157978; }
.theme-drugs .brand-mark,
.theme-drugs .button.primary { background: #593d66; border-color: #593d66; }
.theme-stroke .brand-mark,
.theme-stroke .button.primary { background: #2b63bd; border-color: #2b63bd; }

@media (max-width: 980px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  nav { justify-content: flex-start; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-media { min-height: 260px; }
  .hero-media::after { background: linear-gradient(0deg, rgba(16,41,64,.72), rgba(16,41,64,.12)); }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .question-section,
  .directory-section,
  .refs-section,
  .calculator-grid-layout,
  .guideline-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .brand { min-width: 0; }
  nav { gap: 7px 10px; font-size: .84rem; }
  .hero-copy { padding: 28px 16px 40px; }
  .card-grid { grid-template-columns: 1fr; }
  .cvd-grid { grid-template-columns: 1fr; }
  .feature-block { grid-template-columns: 1fr; }
  .feature-block span { width: 44px; height: 44px; }
}