/* ── Reset + Variables ──────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ns-ink:         #14211c;
  --ns-green:       #2f6b4f;
  --ns-green-dark:  #1e4d36;
  --ns-green-light: #4a8c6a;
  --ns-sage:        #dce8df;
  --ns-sage-light:  #eef4f0;
  --ns-cream:       #f7f4ea;
  --ns-bg:          #f9f8f4;
  --ns-white:       #ffffff;
  --ns-text:        #2c3a32;
  --ns-muted:       #63756b;
  --ns-border:      #cfd9cc;
  --ns-gold:        #b89552;

  /* Evidence grade colors */
  --grade-a-bg:      #d4edda;
  --grade-a-text:    #1a5e2d;
  --grade-a-border:  #2f6b4f;
  --grade-b-bg:      #e8f5e9;
  --grade-b-text:    #2e7d32;
  --grade-b-border:  #4caf50;
  --grade-bplus-bg:  #f0f7e6;
  --grade-bplus-text:#4a7520;
  --grade-bplus-border:#7cb342;
  --grade-aminus-bg: #e8f4f0;
  --grade-aminus-text:#1b5e4a;
  --grade-aminus-border:#26a069;
  --grade-c-bg:      #fff8e1;
  --grade-c-text:    #795548;
  --grade-c-border:  #ffb300;

  --nav-top-h:     56px;
  --nav-bottom-h:  44px;
  --header-height: 100px;
  --container-max: 1160px;
  --radius:        12px;
  --radius-sm:     8px;
  --shadow:        0 2px 12px rgba(0,0,0,0.07);
  --shadow-md:     0 4px 24px rgba(0,0,0,0.10);
}

/* ── Base ───────────────────────────────────────────────────────────────────── */

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: var(--ns-bg);
  color: var(--ns-text);
  line-height: 1.65;
  font-size: 1rem;
  padding-top: calc(var(--nav-top-h) + var(--nav-bottom-h));
}
@media (max-width: 900px) {
  body { padding-top: var(--nav-top-h); }
}

body.menu-open { overflow: hidden; }

a { color: var(--ns-green); text-decoration: none; }
a:hover { color: var(--ns-green-dark); }

h1,h2,h3,h4,h5 {
  font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--ns-ink);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); margin: 2rem 0 .75rem; }
h3 { font-size: 1.125rem; font-weight: 400; margin: 1.25rem 0 .5rem; }
h4 { font-size: 0.875rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--ns-muted); }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

ul, ol { padding-left: 1.5rem; }
li { margin-bottom: .375rem; }

img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 64px 0; }

/* ── Buttons ─────────────────────────────────────────────────────────────────── */

.btn {
  display: inline-block;
  padding: 11px 24px;
  border-radius: 6px;
  font-size: .9375rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
  line-height: 1.4;
}

.btn-primary {
  background: var(--ns-green);
  color: var(--ns-white);
  border-color: var(--ns-green);
}
.btn-primary:hover { background: var(--ns-green-dark); border-color: var(--ns-green-dark); color: var(--ns-white); }

.btn-outline {
  background: transparent;
  color: var(--ns-green);
  border-color: var(--ns-green);
}
.btn-outline:hover { background: var(--ns-green); color: var(--ns-white); }

.btn-full { display: block; text-align: center; }
.btn-sm { padding: 7px 16px; font-size: .875rem; }

/* ── Navigation ─────────────────────────────────────────────────────────────── */

.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: var(--ns-white);
  z-index: 1000;
  box-shadow: 0 1px 0 var(--ns-border);
}

/* ── Top bar: logo + tagline + actions ── */
.nav-top {
  height: var(--nav-top-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--ns-border);
}

.nav-top-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-icon svg { display: block; }

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-name {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ns-ink);
  line-height: 1.15;
}
.nav-logo-science { display: block; }

.nav-logo-tagline {
  display: block;
  font-size: .75rem;
  color: var(--ns-muted);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  margin-top: 3px;
  white-space: nowrap;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-search-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .8125rem;
  color: var(--ns-muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
  transition: color .15s, background .15s;
}
.nav-search-link:hover { color: var(--ns-green); background: var(--ns-sage-light); }
.nav-search-link span { display: none; }
@media (min-width: 640px) { .nav-search-link span { display: inline; } }

.nav-practitioner {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: .8125rem;
  color: var(--ns-muted);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--ns-border);
  white-space: nowrap;
  transition: color .15s, border-color .15s;
}
.nav-practitioner:hover { color: var(--ns-green); border-color: var(--ns-green); }
@media (min-width: 900px) { .nav-practitioner { display: flex; } }

/* Hamburger */
.nav-hamburger {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--ns-ink);
}
.nav-hamburger span:not(.hamburger-label) {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
.hamburger-label {
  font-size: .5rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--ns-muted);
}

/* ── Bottom bar: nav links ── */
.nav-bottom {
  height: var(--nav-bottom-h);
  display: flex;
  align-items: center;
  background: var(--ns-white);
}

.nav-bottom-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.nav-links {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 0;
  align-items: center;
}

.nav-item { position: relative; }

.nav-item > a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 14px;
  height: var(--nav-bottom-h);
  font-size: .875rem;
  color: var(--ns-text);
  white-space: nowrap;
  text-decoration: none;
  transition: color .15s;
  line-height: 1;
}
.nav-item > a:hover,
.nav-item.active > a,
.nav-item > a[aria-current="page"] { color: var(--ns-green); }

.nav-arrow { flex-shrink: 0; transition: transform .2s; }
.nav-item.open .nav-arrow { transform: rotate(180deg); }

/* Dropdown */
.dropdown {
  display: none;
  position: absolute;
  top: calc(var(--nav-bottom-h) - 1px);
  left: 0;
  background: var(--ns-white);
  border: 1px solid var(--ns-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  min-width: 200px;
  padding: 8px 0;
  list-style: none;
  z-index: 100;
}
.nav-item.open .dropdown { display: block; }

.dropdown li a {
  display: block;
  padding: 9px 18px;
  font-size: .875rem;
  color: var(--ns-text);
  white-space: nowrap;
  transition: color .1s, background .1s;
}
.dropdown li a:hover { color: var(--ns-green); background: var(--ns-sage-light); }

/* Hide nav-bottom on mobile, hamburger stays in nav-top */
@media (max-width: 900px) { .nav-bottom { display: none; } }
@media (min-width: 901px) { .nav-hamburger { display: none; } }

/* ── Mobile Menu ────────────────────────────────────────────────────────────── */

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-top-h);
  left: 0; right: 0; bottom: 0;
  background: var(--ns-white);
  overflow-y: auto;
  z-index: 999;
  padding: 16px 0 40px;
  border-top: 1px solid var(--ns-border);
}

.mobile-menu.open { display: block; }

.mobile-menu > ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mob-item { border-bottom: 1px solid var(--ns-sage); }

.mob-link {
  display: block;
  padding: 16px 24px;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--ns-ink);
  text-decoration: none;
}
.mob-link:hover { color: var(--ns-green); }

.mob-sub {
  list-style: none;
  padding: 0 0 8px 0;
  background: var(--ns-sage-light);
}
.mob-sub li a {
  display: block;
  padding: 10px 24px 10px 36px;
  font-size: 1rem;
  color: var(--ns-text);
  text-decoration: none;
}
.mob-sub li a:hover { color: var(--ns-green); }

/* ── Hero ───────────────────────────────────────────────────────────────────── */

.hero {
  background: var(--ns-white);
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--ns-sage);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}

.hero-heading {
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 200;
  color: var(--ns-ink);
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--ns-muted);
  max-width: 48ch;
  margin-bottom: 28px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .875rem;
  color: var(--ns-muted);
  margin: 0;
}
.hero-trust svg { flex-shrink: 0; color: var(--ns-green); }

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image-placeholder {
  width: 100%;
  max-width: 440px;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--ns-sage-light) 0%, var(--ns-sage) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ns-border);
}

.hero-image-inner {
  opacity: .5;
}

/* ── Trust Bar ──────────────────────────────────────────────────────────────── */

.trust-bar {
  background: var(--ns-sage-light);
  border-bottom: 1px solid var(--ns-border);
  padding: 24px 0;
}

.trust-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}

.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: .875rem;
}
.trust-item svg { flex-shrink: 0; margin-top: 2px; }
.trust-item strong { display: block; color: var(--ns-ink); font-weight: 600; font-size: .875rem; margin-bottom: 2px; }
.trust-item span { color: var(--ns-muted); line-height: 1.4; }

/* ── Section Header ─────────────────────────────────────────────────────────── */

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}
.section-header h2 { margin: 0; }
.view-all { font-size: .875rem; color: var(--ns-green); white-space: nowrap; }
.view-all:hover { color: var(--ns-green-dark); }

/* ── Topic Grid ─────────────────────────────────────────────────────────────── */

.topics-section { background: var(--ns-white); }

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 20px;
}

.topic-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  padding: 20px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--ns-border);
  background: var(--ns-white);
  transition: box-shadow .15s, border-color .15s, transform .15s;
  color: var(--ns-text);
}
.topic-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--ns-green);
  transform: translateY(-2px);
  color: var(--ns-ink);
}

.topic-card-img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  background: var(--ns-sage-light);
}

.topic-card h3 { font-size: .9375rem; font-weight: 600; margin: 0 0 4px; }
.topic-card p { font-size: .8125rem; color: var(--ns-muted); margin: 0; line-height: 1.4; }

/* ── Research Section ───────────────────────────────────────────────────────── */

.research-section { background: var(--ns-bg); }

.research-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
  align-items: start;
}
@media (max-width: 960px) {
  .research-layout { grid-template-columns: 1fr; }
  .trust-sidebar { order: -1; }
}

/* Research List */
.research-list { display: flex; flex-direction: column; gap: 0; }

.research-row {
  display: grid;
  grid-template-columns: 72px 1fr 72px;
  gap: 16px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--ns-border);
  text-decoration: none;
  color: var(--ns-text);
  transition: color .15s;
}
.research-row:first-child { border-top: 1px solid var(--ns-border); }
.research-row:hover { color: var(--ns-ink); }
.research-row:hover h3 { color: var(--ns-green); }

.research-row-img { width: 72px; height: 72px; border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0; }
.research-img-placeholder {
  width: 100%;
  height: 100%;
  background: var(--ns-sage);
  border-radius: var(--radius-sm);
}

.research-row-content { flex: 1; min-width: 0; }
.research-category { font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ns-muted); display: block; margin-bottom: 4px; }
.research-row-content h3 { font-size: .9375rem; font-weight: 500; margin: 0 0 4px; color: var(--ns-ink); transition: color .15s; }
.research-summary { font-size: .8125rem; color: var(--ns-muted); margin: 0; line-height: 1.4; }

.view-all-link {
  display: block;
  padding: 16px 0;
  font-size: .875rem;
  color: var(--ns-green);
  text-align: center;
}

/* Trust Sidebar */
.trust-sidebar-inner {
  background: var(--ns-white);
  border: 1px solid var(--ns-border);
  border-radius: var(--radius);
  padding: 28px;
}

.trust-sidebar-inner h3 {
  font-size: 1.125rem;
  font-weight: 400;
  margin: 0 0 20px;
}

.trust-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.trust-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 0;
}
.trust-icon { flex-shrink: 0; margin-top: 2px; }
.trust-list strong { display: block; font-size: .9375rem; font-weight: 600; color: var(--ns-ink); margin-bottom: 2px; }
.trust-list p { font-size: .8125rem; color: var(--ns-muted); margin: 0; line-height: 1.4; }

/* ── Evidence Cards (Grid) ──────────────────────────────────────────────────── */

.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.evidence-card {
  display: flex;
  flex-direction: column;
  background: var(--ns-white);
  border: 1px solid var(--ns-border);
  border-radius: var(--radius);
  padding: 24px;
  text-decoration: none;
  color: var(--ns-text);
  transition: box-shadow .15s, border-color .15s, transform .15s;
}
.evidence-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--ns-green);
  transform: translateY(-2px);
  color: var(--ns-ink);
}

.ec-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 8px;
}

.ec-type {
  font-size: .6875rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ns-muted);
  font-weight: 600;
}

.evidence-card h3 {
  font-size: 1.0625rem;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--ns-ink);
  line-height: 1.3;
}

.evidence-card p {
  font-size: .875rem;
  color: var(--ns-muted);
  line-height: 1.5;
  flex: 1;
  margin: 0 0 16px;
}

.ec-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .75rem;
  color: var(--ns-muted);
  border-top: 1px solid var(--ns-sage);
  padding-top: 12px;
  margin-top: auto;
}

.ec-rating {
  font-weight: 600;
  color: var(--ns-green);
}

/* ── Evidence Badges ─────────────────────────────────────────────────────────── */

.evidence-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  text-align: center;
  flex-shrink: 0;
}
.evidence-label { font-size: .5625rem; text-transform: uppercase; letter-spacing: .04em; line-height: 1.2; }
.evidence-grade { font-size: 1.125rem; font-weight: 700; line-height: 1; }

.evidence-badge-sm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid;
  font-size: .75rem;
  font-weight: 700;
}

.evidence-badge-large {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 20px;
  border-radius: var(--radius);
  border: 2px solid;
  text-align: center;
  min-width: 100px;
}
.evidence-badge-large .evidence-grade { font-size: 2rem; font-weight: 700; }
.evidence-badge-large .evidence-label { font-size: .6875rem; text-transform: uppercase; letter-spacing: .04em; }
.evidence-badge-large .evidence-rating-label { font-size: .75rem; font-weight: 600; margin-top: 2px; }

/* Grade colors */
.grade-a     { background: var(--grade-a-bg);     color: var(--grade-a-text);     border-color: var(--grade-a-border); }
.grade-a-minus { background: var(--grade-aminus-bg); color: var(--grade-aminus-text); border-color: var(--grade-aminus-border); }
.grade-b-plus  { background: var(--grade-bplus-bg);  color: var(--grade-bplus-text);  border-color: var(--grade-bplus-border); }
.grade-b     { background: var(--grade-b-bg);     color: var(--grade-b-text);     border-color: var(--grade-b-border); }
.grade-c     { background: var(--grade-c-bg);     color: var(--grade-c-text);     border-color: var(--grade-c-border); }

/* ── Page Hero ──────────────────────────────────────────────────────────────── */

.page-hero {
  background: var(--ns-white);
  border-bottom: 1px solid var(--ns-sage);
  padding: 40px 0 36px;
}

.page-hero-research {
  background: linear-gradient(135deg, var(--ns-sage-light) 0%, var(--ns-white) 60%);
}

.page-hero-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-top: 16px;
}
@media (max-width: 600px) {
  .page-hero-inner { flex-direction: column; }
}

.page-hero h1 { margin: 12px 0 8px; }
.page-hero-sub { font-size: 1.0625rem; color: var(--ns-muted); max-width: 60ch; margin: 0; }

/* ── Breadcrumb ─────────────────────────────────────────────────────────────── */

.breadcrumb {
  font-size: .8125rem;
  color: var(--ns-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--ns-green); }
.breadcrumb a:hover { color: var(--ns-green-dark); }
.breadcrumb span[aria-hidden] { color: var(--ns-border); }

/* ── Article Layout ─────────────────────────────────────────────────────────── */

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
  padding: 40px 0;
}
@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { order: -1; }
}

.article-body > section {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--ns-sage);
  margin-bottom: 28px;
}
.article-body > section:last-child { border-bottom: none; }

/* ── Summary Box ─────────────────────────────────────────────────────────────── */

.summary-box {
  background: var(--ns-sage-light);
  border-left: 4px solid var(--ns-green);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  margin-bottom: 28px;
}
.summary-box h2 { margin-top: 0; font-size: 1rem; font-weight: 600; color: var(--ns-green); text-transform: uppercase; letter-spacing: .04em; }
.summary-box p { font-size: 1rem; color: var(--ns-ink); margin: 0; }

.summary-box-warning {
  border-color: var(--ns-gold);
  background: #fffbf0;
}

/* ── Info Boxes ─────────────────────────────────────────────────────────────── */

.info-box {
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin-bottom: 28px;
}
.info-box h2 { margin-top: 0; }

.info-box-safety {
  background: #fff8f8;
  border: 1px solid #f5c2c2;
}
.info-box-safety h2 { color: #8b2020; }

.info-box-dosage {
  background: var(--ns-sage-light);
  border: 1px solid var(--ns-sage);
}
.info-box-dosage h2 { color: var(--ns-green); }

.info-box-interactions {
  background: #fff8e8;
  border: 1px solid #e8d0a0;
}
.info-box-interactions h2 { color: #7a5500; }

/* ── Evidence Lists ─────────────────────────────────────────────────────────── */

.evidence-list { list-style: disc; }

.evidence-list-checked { list-style: none; padding-left: 0; }
.evidence-list-checked li {
  padding-left: 1.5rem;
  position: relative;
}
.evidence-list-checked li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--ns-green);
  font-weight: 700;
}

.evidence-list-gap li { color: var(--ns-muted); }

/* ── Entity Header ──────────────────────────────────────────────────────────── */

.entity-kicker {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ns-green);
  font-weight: 700;
  margin-bottom: 6px;
}

.latin-name { color: var(--ns-muted); margin-top: 4px; }

/* ── Approach Grid ──────────────────────────────────────────────────────────── */

.approach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.approach-card {
  background: var(--ns-white);
  border: 1px solid var(--ns-border);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.approach-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}
.approach-header strong { font-size: .9375rem; color: var(--ns-ink); }
.approach-level { font-size: .75rem; color: var(--ns-green); font-weight: 600; margin-bottom: 6px; }
.approach-card p { font-size: .875rem; color: var(--ns-muted); margin: 0; }
.approach-evidence-tag { font-size: .75rem; color: var(--ns-muted); white-space: nowrap; }

/* ── Citations ──────────────────────────────────────────────────────────────── */

.citations-section { background: var(--ns-sage-light); border-radius: var(--radius-sm); padding: 20px; }
.citations-list { font-size: .8125rem; color: var(--ns-muted); }
.citations-list li { margin-bottom: .5rem; }

/* ── Article Disclaimer ─────────────────────────────────────────────────────── */

.article-disclaimer {
  background: var(--ns-cream);
  border: 1px solid var(--ns-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: .8125rem;
  color: var(--ns-muted);
}
.last-updated { margin-top: 6px; }

/* ── Sidebar ─────────────────────────────────────────────────────────────────── */

.article-sidebar,
.prose-sidebar,
.faq-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.sidebar-widget {
  background: var(--ns-white);
  border: 1px solid var(--ns-border);
  border-radius: var(--radius);
  padding: 20px;
}

.sidebar-widget h4 { margin-bottom: 14px; }

.sidebar-tags {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sidebar-tags li { margin: 0; }

.sidebar-links {
  list-style: none;
  padding: 0;
}
.sidebar-links li { margin-bottom: 8px; }
.sidebar-links a { font-size: .875rem; color: var(--ns-green); }
.sidebar-links a:hover { color: var(--ns-green-dark); }

.sidebar-link {
  font-size: .875rem;
  color: var(--ns-green);
  display: inline-block;
  margin-top: 8px;
}

.sidebar-cta {
  background: var(--ns-sage-light);
  border-color: var(--ns-sage);
}
.sidebar-cta p { font-size: .875rem; color: var(--ns-muted); }

/* ── Tags ───────────────────────────────────────────────────────────────────── */

.tag {
  display: inline-block;
  background: var(--ns-sage-light);
  color: var(--ns-green);
  border: 1px solid var(--ns-sage);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: .75rem;
  font-weight: 500;
}

/* ── Prose Layout ───────────────────────────────────────────────────────────── */

.prose-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
  padding: 40px 0;
}
@media (max-width: 860px) {
  .prose-layout { grid-template-columns: 1fr; }
  .prose-sidebar { position: static; }
}

.prose-body h2 { margin-top: 2rem; }
.prose-body p, .prose-body li { font-size: 1rem; }
.prose-body ul, .prose-body ol { margin-bottom: 1.25rem; }
.prose-body blockquote {
  border-left: 4px solid var(--ns-green);
  padding: 12px 20px;
  margin: 20px 0;
  background: var(--ns-sage-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--ns-ink);
}

/* CTA Box in prose */
.cta-box {
  background: var(--ns-sage-light);
  border: 1px solid var(--ns-sage);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 32px;
  text-align: center;
}
.cta-box h3 { margin: 0 0 8px; font-size: 1.125rem; }
.cta-box p { color: var(--ns-muted); margin-bottom: 16px; }

/* ── Evidence Grade Guide ───────────────────────────────────────────────────── */

.evidence-grade-guide { display: flex; flex-direction: column; gap: 20px; margin: 24px 0; }
.grade-block { display: flex; gap: 20px; align-items: flex-start; }
.grade-block .evidence-badge-large { flex-shrink: 0; }
.grade-block-content h3 { margin: 0 0 6px; font-size: 1rem; font-weight: 600; }
.grade-block-content p { font-size: .9375rem; color: var(--ns-muted); margin: 0; }

/* ── Filter Tabs ─────────────────────────────────────────────────────────────── */

.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--ns-border);
}

.filter-tab {
  padding: 7px 16px;
  border-radius: 100px;
  font-size: .875rem;
  border: 1px solid var(--ns-border);
  background: var(--ns-white);
  color: var(--ns-text);
  text-decoration: none;
  transition: background .15s, color .15s, border-color .15s;
}
.filter-tab:hover { border-color: var(--ns-green); color: var(--ns-green); }
.filter-tab.active { background: var(--ns-green); color: var(--ns-white); border-color: var(--ns-green); }

/* ── Pagination ─────────────────────────────────────────────────────────────── */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-btn {
  padding: 8px 18px;
  border: 1px solid var(--ns-border);
  border-radius: 6px;
  font-size: .875rem;
  color: var(--ns-green);
  background: var(--ns-white);
}
.page-btn:hover { background: var(--ns-sage-light); }
.page-info { font-size: .875rem; color: var(--ns-muted); }

/* ── Glossary ───────────────────────────────────────────────────────────────── */

.alpha-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 32px;
}
.alpha-btn {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1px solid var(--ns-border);
  background: var(--ns-white);
  color: var(--ns-text);
  font-size: .875rem;
  font-weight: 600;
  text-decoration: none;
  transition: background .15s, border-color .15s, color .15s;
}
.alpha-btn:hover { border-color: var(--ns-green); color: var(--ns-green); }
.alpha-btn.active { background: var(--ns-green); color: var(--ns-white); border-color: var(--ns-green); }
.alpha-clear { width: auto; padding: 0 10px; font-size: .75rem; font-weight: 400; }

.glossary-list { display: flex; flex-direction: column; gap: 0; }

.glossary-entry {
  padding: 24px 0;
  border-bottom: 1px solid var(--ns-border);
}
.glossary-entry:first-child { border-top: 1px solid var(--ns-border); }

.glossary-term {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--ns-ink);
  margin: 0 0 8px;
}
.glossary-definition { color: var(--ns-text); margin-bottom: 10px; }
.glossary-related { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: .8125rem; color: var(--ns-muted); }

/* ── Directory ──────────────────────────────────────────────────────────────── */

.directory-group { margin-bottom: 48px; }
.directory-group h2 { border-bottom: 2px solid var(--ns-sage); padding-bottom: 10px; margin-bottom: 20px; }

.directory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.directory-card {
  background: var(--ns-white);
  border: 1px solid var(--ns-border);
  border-radius: var(--radius);
  padding: 20px;
}

.directory-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.directory-card h3 { font-size: 1rem; font-weight: 600; margin: 0; color: var(--ns-ink); }
.directory-abbr {
  font-size: .75rem;
  background: var(--ns-sage-light);
  color: var(--ns-green);
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
  font-weight: 600;
}
.directory-card p { font-size: .875rem; color: var(--ns-muted); margin-bottom: 12px; }
.directory-link { font-size: .875rem; color: var(--ns-green); font-weight: 500; }
.directory-link:hover { color: var(--ns-green-dark); }

/* ── FAQ ────────────────────────────────────────────────────────────────────── */

.faq-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
  padding: 40px 0;
}
@media (max-width: 860px) {
  .faq-layout { grid-template-columns: 1fr; }
  .faq-sidebar { position: static; order: -1; }
}

.faq-list { display: flex; flex-direction: column; gap: 0; }

.faq-item { border-bottom: 1px solid var(--ns-border); }
.faq-item:first-child { border-top: 1px solid var(--ns-border); }

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 20px 0;
  cursor: pointer;
  color: var(--ns-ink);
  font-size: 1rem;
  font-weight: 500;
  font-family: inherit;
  line-height: 1.4;
}
.faq-question:hover { color: var(--ns-green); }
.faq-question.open { color: var(--ns-green); }

.faq-icon { flex-shrink: 0; transition: transform .2s; }
.faq-question.open .faq-icon { transform: rotate(180deg); }

.faq-answer { padding: 0 0 20px; }
.faq-answer p { font-size: .9375rem; color: var(--ns-muted); line-height: 1.65; margin: 0; }

/* ── Newsletter ─────────────────────────────────────────────────────────────── */

.newsletter-strip {
  background: var(--ns-green-dark);
  color: var(--ns-white);
  padding: 48px 0;
}

.newsletter-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.newsletter-copy {
  display: flex;
  align-items: center;
  gap: 16px;
}
@media (max-width: 600px) { .newsletter-copy { flex-direction: column; text-align: center; } }

.newsletter-icon { opacity: .7; flex-shrink: 0; }
.newsletter-headline { font-size: 1.25rem; font-weight: 300; color: var(--ns-white); margin: 0 0 4px; }
.newsletter-sub { font-size: .9375rem; opacity: .75; margin: 0; }

.newsletter-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  max-width: 480px;
}
.newsletter-form input {
  flex: 1;
  min-width: 200px;
  padding: 11px 16px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,.3);
  background: rgba(255,255,255,.1);
  color: var(--ns-white);
  font-size: .9375rem;
  font-family: inherit;
}
.newsletter-form input::placeholder { color: rgba(255,255,255,.5); }
.newsletter-form input:focus { outline: 2px solid rgba(255,255,255,.5); border-color: transparent; }
.newsletter-form button {
  padding: 11px 20px;
  border-radius: 6px;
  background: var(--ns-white);
  color: var(--ns-green-dark);
  border: none;
  font-size: .9375rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.newsletter-form button:hover { background: var(--ns-sage); }

.newsletter-fine {
  font-size: .8125rem;
  opacity: .65;
  display: flex;
  gap: 16px;
}

/* ── Footer ─────────────────────────────────────────────────────────────────── */

.site-footer {
  background: var(--ns-white);
  border-top: 1px solid var(--ns-border);
  padding: 56px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .footer-inner { grid-template-columns: 1fr; }
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: 12px;
  color: var(--ns-ink);
}
.footer-logo span { font-size: .6875rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; line-height: 1.2; }
.footer-logo strong { font-weight: 800; }

.footer-tagline { font-size: .875rem; color: var(--ns-muted); margin-bottom: 8px; }
.footer-desc { font-size: .8125rem; color: var(--ns-muted); line-height: 1.5; }

.footer-col h4 { margin-bottom: 12px; font-size: .75rem; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { font-size: .875rem; color: var(--ns-muted); text-decoration: none; transition: color .15s; }
.footer-col a:hover { color: var(--ns-green); }

.footer-email-form { margin-top: 8px; }
.footer-email-row {
  display: flex;
  gap: 0;
  border: 1px solid var(--ns-border);
  border-radius: 6px;
  overflow: hidden;
}
.footer-email-row input {
  flex: 1;
  padding: 9px 12px;
  border: none;
  font-size: .875rem;
  font-family: inherit;
  background: var(--ns-white);
  color: var(--ns-text);
  outline: none;
}
.footer-email-row button {
  padding: 9px 14px;
  background: var(--ns-green);
  border: none;
  color: var(--ns-white);
  cursor: pointer;
  flex-shrink: 0;
  transition: background .15s;
}
.footer-email-row button:hover { background: var(--ns-green-dark); }

.footer-bottom {
  border-top: 1px solid var(--ns-border);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: .8125rem;
  color: var(--ns-muted);
  flex-wrap: wrap;
}

.footer-bottom-links {
  display: flex;
  gap: 16px;
}
.footer-bottom-links a { color: var(--ns-muted); }
.footer-bottom-links a:hover { color: var(--ns-green); }

/* Mobile footer: single column 2x size */
@media (max-width: 600px) {
  .site-footer { font-size: 1.125rem; }
  .footer-col a { font-size: 1.0625rem; }
  .footer-col li { margin-bottom: 12px; }
  .footer-bottom { flex-direction: column; text-align: center; font-size: .9375rem; }
  .footer-bottom-links { justify-content: center; flex-wrap: wrap; font-size: .9375rem; }
  .footer-tagline, .footer-desc { font-size: 1rem; }
}

/* ── Result Count / Empty State ─────────────────────────────────────────────── */

.result-count { font-size: .875rem; color: var(--ns-muted); margin-bottom: 20px; }
.empty-state { text-align: center; padding: 48px; color: var(--ns-muted); }

/* ── 404 Page ───────────────────────────────────────────────────────────────── */

.error-page { padding: 80px 0; }
.error-inner {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}
.error-icon { margin-bottom: 24px; display: flex; justify-content: center; }
.error-inner h1 { margin-bottom: 12px; }
.error-inner p { color: var(--ns-muted); margin-bottom: 28px; }
.error-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 32px; }
.error-suggestions { font-size: .9375rem; }
.error-suggestions p { color: var(--ns-muted); margin-bottom: 8px; }
.error-suggestions ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.error-suggestions li a {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--ns-border);
  border-radius: 4px;
  font-size: .875rem;
  color: var(--ns-green);
}
.error-suggestions li a:hover { background: var(--ns-sage-light); }

/* ── Utility ─────────────────────────────────────────────────────────────────── */

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}