/* ============================================================
   Medicinal Glow — Organic Biophilic Design System
   Palette: jewel-green botanical on cool-white #F4FAF6 ground
   ============================================================ */

:root {
  /* Palette */
  --primary:          #0E5A3C;
  --primary-50:       #E8F4ED;
  --primary-100:      #C8E6D5;
  --primary-300:      #6FB892;
  --primary-500:      #0E5A3C;
  --primary-700:      #0B3D2E;
  --primary-900:      #06241B;

  --secondary:        #1E7A6B;
  --secondary-300:    #62B3A6;
  --secondary-700:    #114C42;

  --accent:           #B5713A;
  --accent-50:        #F6EBDF;
  --accent-300:       #D6A579;
  --accent-700:       #8A5328;
  --accent-900:       #4E2E13;

  --botanical-fern:   #3E8E3E;
  --botanical-moss:   #5B8C2A;
  --botanical-jade:   #1FA37A;
  --botanical-amber:  #C98A2B;
  --botanical-rose:   #9C4A52;

  --canopy-start:     #0B3D2E;
  --canopy-mid:       #0E5A3C;
  --canopy-late:      #114C42;

  --neutral-0:        #FFFFFF;
  --neutral-50:       #F4FAF6;
  --neutral-100:      #E8F1EB;
  --neutral-200:      #D4E5DA;
  --neutral-300:      #B6CFBE;
  --neutral-500:      #6A8576;
  --neutral-700:      #384A40;
  --neutral-800:      #22302A;
  --neutral-900:      #10201A;

  --bg:               #F4FAF6;
  --bg-alt:           #E8F1EB;
  --bg-canopy:        #0B3D2E;
  --surface:          #FFFFFF;
  --surface-alt:      #F4FAF6;
  --surface-canopy:   #0E5A3C;

  --text:             #1B2C24;
  --text-strong:      #06241B;
  --text-muted:       #4E6359;
  --text-inverse:     #F4FAF6;
  --text-on-canopy:   #E8F4ED;

  --rule:             #D4E5DA;
  --rule-strong:      #0E5A3C;
  --rule-accent:      #B5713A;

  --evidence-human:   #1FA37A;
  --evidence-preclin: #C98A2B;
  --evidence-none:    #9C4A52;

  /* Layout */
  --max-width:        74rem;
  --article-max:      44rem;
  --container-px:     clamp(1.25rem, 3.5vw, 2.5rem);

  /* Typography */
  --font-heading:     'Fraunces', 'Hoefler Text', Georgia, 'Times New Roman', serif;
  --font-body:        'Mulish', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono:        'Spline Sans Mono', 'IBM Plex Mono', 'SF Mono', Menlo, monospace;

  /* Radius */
  --radius-btn:       22px;
  --radius-card:      22px;
  --radius-callout:   18px;
  --radius-chip:      9999px;
  --radius-code:      4px;

  /* Motion */
  --ease-sway:        cubic-bezier(0.22, 0.61, 0.36, 1);
  --t-fast:           240ms;
  --t-card:           280ms;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.68;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--accent); }
a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 2px;
  box-shadow: 0 0 0 4px rgba(14, 90, 60, 0.18);
}
ul, ol { padding-left: 1.5rem; }
li { margin-bottom: 0.35rem; }

/* ============================================================
   TYPOGRAPHY SCALE
   ============================================================ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--text-strong);
  line-height: 1.18;
  letter-spacing: -0.008em;
}

h1 {
  font-size: clamp(2rem, 4.25vw, 3.375rem);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 500;
  letter-spacing: -0.008em;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.375rem;
  font-weight: 400;
  letter-spacing: -0.004em;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: 0;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p { margin-bottom: 1.25rem; }
p:last-child { margin-bottom: 0; }

.lede {
  font-size: 1.1875rem;
  line-height: 1.5;
  letter-spacing: -0.002em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.875rem;
  display: block;
}

small, .small {
  font-size: 0.875rem;
  line-height: 1.5;
}

strong { font-weight: 700; }
em { font-style: italic; }

/* Inline code / identifier chips */
code {
  font-family: var(--font-mono);
  font-size: 0.9375em;
  font-weight: 500;
  background: var(--neutral-50);
  border: 1px solid var(--botanical-fern);
  border-radius: var(--radius-code);
  padding: 0.125rem 0.375rem;
  color: var(--text);
  line-height: 1.4;
}

/* Citation superscript markers */
sup.cite-marker a {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  vertical-align: super;
  line-height: 0;
}
sup.cite-marker a:hover { color: var(--accent-700); }

/* ============================================================
   LAYOUT — CONTAINER
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

.article-body {
  max-width: var(--article-max);
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  position: relative;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 68px;
}

.site-brand {
  font-family: var(--font-heading);
  font-size: 1.1875rem;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.site-brand:hover { color: var(--primary-700); }

.brand-sprig {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 2px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 4px 0;
  border-radius: 1px;
  transition: transform var(--t-fast) var(--ease-sway),
              opacity var(--t-fast) var(--ease-sway);
}

/* Primary Nav */
.site-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 1.75rem);
}

.site-nav li { margin: 0; }

.site-nav a {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--text);
  text-decoration: none;
  position: relative;
  transition: color var(--t-fast) var(--ease-sway);
  padding-bottom: 2px;
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--t-fast) var(--ease-sway);
}

.site-nav a:hover { color: var(--accent); }
.site-nav a:hover::after { width: 100%; background: var(--accent); }
.site-nav a[aria-current="page"] { color: var(--primary); }
.site-nav a[aria-current="page"]::after { width: 100%; }

/* ============================================================
   HERO — TWO ZONE BIOPHILIC
   ============================================================ */
.hero {
  background: var(--bg);
  padding: 4rem 0 0;
}

.hero-upper {
  padding-bottom: 3rem;
}

.hero-upper .container {
  max-width: var(--max-width);
}

.hero-headline-wrap {
  max-width: var(--article-max);
}

.hero-headline-wrap .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.copper-leaf-bud {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--accent);
}

.hero-headline-wrap h1 {
  margin-bottom: 1.25rem;
  color: var(--text-strong);
}

.hero-organic-rule {
  width: 100%;
  max-width: 28rem;
  height: 12px;
  margin-bottom: 1.25rem;
  overflow: visible;
}

.hero-organic-rule path {
  stroke: var(--primary-300);
  stroke-width: 1.5;
  fill: none;
}

.hero-leaf-washes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.06;
}

.hero-upper {
  position: relative;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 2rem;
}

/* LOWER ZONE — canopy */
.hero-canopy {
  background: var(--canopy-start);
  padding: 3rem 0 3.5rem;
  position: relative;
  clip-path: polygon(0 2rem, 100% 0, 100% 100%, 0 100%);
  margin-top: -1px;
}

.hero-canopy .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.hero-image-wrap {
  width: 100%;
  max-width: 54rem;
  border-radius: 18px;
  overflow: hidden;
}

.hero-image-wrap img {
  width: 100%;
  height: auto;
}

.stat-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  width: 100%;
}

.stat-tile {
  background: var(--surface);
  border-radius: 40% 60% 55% 45% / 50% 45% 55% 50%;
  padding: 1.25rem 1.5rem;
  text-align: center;
  min-width: 140px;
  box-shadow: 0 10px 30px -14px rgba(11, 61, 46, 0.35);
  position: relative;
}

.stat-tile-num {
  display: block;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: clamp(1.625rem, 3.25vw, 2.5rem);
  color: var(--primary);
  line-height: 1.1;
}

.stat-tile-cap {
  display: block;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Inner page hero */
.hero-inner {
  background: var(--bg-canopy);
  padding: 2.5rem 0 2rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 2rem), 0 100%);
  margin-bottom: -1px;
}

.hero-inner .container { max-width: var(--max-width); }

.hero-inner .eyebrow { color: var(--botanical-jade); }

.hero-inner h1 {
  color: var(--text-on-canopy);
  max-width: var(--article-max);
  margin-bottom: 0.75rem;
}

.hero-inner .lede {
  color: rgba(232, 244, 237, 0.75);
  max-width: var(--article-max);
}

.breadcrumb {
  font-size: 0.8125rem;
  color: rgba(232, 244, 237, 0.6);
  margin-bottom: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.breadcrumb a {
  color: rgba(232, 244, 237, 0.7);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--text-on-canopy); }
.breadcrumb-sep { opacity: 0.5; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0;
  text-decoration: none;
  padding: 0.8125rem 1.75rem;
  border-radius: var(--radius-btn) 4px var(--radius-btn) var(--radius-btn);
  cursor: pointer;
  transition: background-color var(--t-fast) var(--ease-sway),
              box-shadow var(--t-fast) var(--ease-sway),
              border-color var(--t-fast) var(--ease-sway);
  border: 1.5px solid transparent;
  line-height: 1.2;
}

.btn-primary {
  background: var(--primary);
  color: var(--text-inverse);
  border-color: var(--primary);
  box-shadow: 0 6px 18px -8px rgba(11, 61, 46, 0.35);
}

.btn-primary:hover {
  background: var(--primary-700);
  border-color: var(--primary-700);
  color: var(--text-inverse);
  box-shadow: 0 10px 24px -10px rgba(11, 61, 46, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-secondary:hover {
  background: var(--primary-50);
  color: var(--primary-700);
  border-color: var(--primary-700);
}

.btn-secondary-inverse {
  background: transparent;
  color: var(--text-on-canopy);
  border-color: rgba(232, 244, 237, 0.5);
}

.btn-secondary-inverse:hover {
  background: rgba(232, 244, 237, 0.1);
  border-color: var(--text-on-canopy);
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--surface);
  border-radius: var(--radius-card) 4px var(--radius-card) var(--radius-card);
  border: 1px solid var(--rule);
  box-shadow: 0 10px 30px -14px rgba(11, 61, 46, 0.22);
  padding: 1.625rem;
  transition: box-shadow var(--t-card) var(--ease-sway),
              transform var(--t-card) var(--ease-sway);
}

.card:hover {
  box-shadow: 0 18px 40px -16px rgba(11, 61, 46, 0.32);
  transform: translateY(-2px);
}

@media (prefers-reduced-motion: reduce) {
  .card:hover { transform: none; }
}

.card-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-strong);
  margin-bottom: 0.625rem;
  line-height: 1.3;
}

.card-body {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Component top arc — via border-top */
.card-arc-jade  { border-top: 4px solid var(--botanical-jade); }
.card-arc-fern  { border-top: 4px solid var(--botanical-fern); }
.card-arc-moss  { border-top: 4px solid var(--botanical-moss); }
.card-arc-copper { border-top: 4px solid var(--accent); }
.card-arc-primary { border-top: 4px solid var(--primary); }

/* Component cards grid */
.component-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin: 2.5rem 0;
}

@media (min-width: 640px) {
  .component-cards { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   CALLOUTS
   ============================================================ */
.callout {
  border-radius: var(--radius-callout);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  border-left: 4px solid var(--primary);
  position: relative;
}

.callout-context {
  background: var(--primary-50);
  border-left-color: var(--primary);
}

.callout-evidence {
  background: var(--accent-50);
  border-left-color: var(--accent);
}

.callout-caution {
  background: rgba(156, 74, 82, 0.06);
  border-left-color: var(--botanical-rose);
}

.callout-gap {
  background: rgba(201, 138, 43, 0.08);
  border-left-color: var(--botanical-amber);
}

.callout-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.callout-context   .callout-eyebrow { color: var(--primary); }
.callout-evidence  .callout-eyebrow { color: var(--accent-700); }
.callout-caution   .callout-eyebrow { color: var(--botanical-rose); }
.callout-gap       .callout-eyebrow { color: var(--botanical-amber); }

.callout p { font-size: 0.9375rem; margin-bottom: 0; }

/* ============================================================
   EVIDENCE CHIPS
   ============================================================ */
.evidence-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-chip);
  border: 1px solid;
  background: var(--surface);
  line-height: 1.4;
}

.chip-human   { border-color: var(--evidence-human);   color: var(--evidence-human); }
.chip-preclin { border-color: var(--evidence-preclin); color: var(--evidence-preclin); }
.chip-none    { border-color: var(--evidence-none);    color: var(--evidence-none); }

/* Component leaf tags */
.leaf-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.leaf-tag-jade { color: var(--botanical-jade); }
.leaf-tag-fern { color: var(--botanical-fern); }
.leaf-tag-moss { color: var(--botanical-moss); }

.leaf-icon {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.page-section {
  padding: 2.5rem 0;
}

.section-heading-wrap {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  margin-bottom: 1rem;
}

.section-rule {
  width: 4px;
  min-height: 100%;
  border-radius: 2px;
  flex-shrink: 0;
  align-self: stretch;
  margin-top: 0.25rem;
}

.rule-jade   { background: var(--botanical-jade); }
.rule-fern   { background: var(--botanical-fern); }
.rule-moss   { background: var(--botanical-moss); }
.rule-copper { background: var(--accent); }
.rule-primary{ background: var(--primary); }

/* Section divider */
.section-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 2.5rem 0;
  color: var(--neutral-300);
}

.section-divider-line {
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.section-divider-leaf {
  width: 16px;
  height: 16px;
  color: var(--botanical-jade);
  flex-shrink: 0;
}

/* ============================================================
   FIGURES
   ============================================================ */
.fig-wrap {
  margin: 2rem 0;
  background: var(--surface);
  border-radius: var(--radius-card) 4px var(--radius-card) var(--radius-card);
  border: 1px solid var(--rule);
  border-top: 4px solid var(--botanical-jade);
  box-shadow: 0 10px 30px -14px rgba(11, 61, 46, 0.18);
  overflow: hidden;
}

.fig-wrap img {
  width: 100%;
  height: auto;
}

figcaption {
  padding: 0.875rem 1.25rem 1rem;
  border-top: 1px solid var(--rule);
}

figcaption .eyebrow {
  font-size: 0.6875rem;
  margin-bottom: 0.25rem;
  color: var(--primary);
}

figcaption p {
  font-size: 0.875rem;
  font-style: italic;
  color: var(--text-muted);
  margin: 0;
}

/* ============================================================
   PULL QUOTE
   ============================================================ */
.pull-quote {
  border-left: 4px solid var(--accent);
  padding-left: 1.5rem;
  margin: 2rem 0;
}

.pull-quote blockquote {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: clamp(1.25rem, 2vw, 1.625rem);
  font-weight: 400;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 0.625rem;
}

.pull-quote cite {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-style: normal;
}

/* ============================================================
   TABLES
   ============================================================ */
.table-wrap {
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: var(--radius-callout);
  border: 1px solid var(--rule);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

thead tr {
  border-bottom: 2px solid var(--rule);
}

thead th {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  text-align: left;
  padding: 0.7rem 1rem;
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid var(--neutral-200);
  transition: background-color var(--t-fast) var(--ease-sway);
}

tbody tr:hover { background: var(--primary-50); }
tbody tr:last-child { border-bottom: none; }

tbody td {
  padding: 0.7rem 1rem;
  color: var(--text);
  vertical-align: top;
}

td.num, th.num { text-align: right; font-family: var(--font-mono); }
td.id-cell { font-family: var(--font-mono); font-size: 0.875rem; }

/* DataTables overrides */
.dataTables_wrapper .dataTables_filter input {
  border: 1px solid var(--rule);
  border-radius: var(--radius-code);
  padding: 0.3rem 0.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text);
  background: var(--surface);
  outline: none;
}

.dataTables_wrapper .dataTables_filter input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 90, 60, 0.15);
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
  border-radius: var(--radius-chip) !important;
  font-size: 0.8125rem !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
  background: var(--primary) !important;
  color: var(--text-inverse) !important;
  border-color: var(--primary) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
  background: var(--primary-50) !important;
  color: var(--primary) !important;
  border-color: var(--primary-300) !important;
}

.dataTables_length select {
  border: 1px solid var(--rule);
  border-radius: var(--radius-code);
  padding: 0.25rem 0.375rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
}

.dataTables_wrapper .dataTables_info {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ============================================================
   REFERENCES LIST
   ============================================================ */
.references-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.references-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.9375rem;
  line-height: 1.6;
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
  margin-bottom: 0;
}

.references-list li:last-child { border-bottom: none; }

.ref-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  flex-shrink: 0;
  min-width: 1.75rem;
  padding-top: 0.125rem;
}

.ref-body { flex: 1; }

.ref-links {
  margin-top: 0.375rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}

.ref-link {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  color: var(--primary);
  text-decoration: none;
  padding: 0.125rem 0.5rem;
  border: 1px solid var(--primary-100);
  border-radius: var(--radius-code);
  background: var(--primary-50);
  transition: background-color var(--t-fast) var(--ease-sway);
}

.ref-link:hover {
  background: var(--primary-100);
  color: var(--primary-700);
}

/* Component badges on reference rows */
.ref-component {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.125rem 0.4rem;
  border-radius: var(--radius-chip);
  border: 1px solid;
  margin-left: 0.375rem;
  vertical-align: middle;
}

.ref-comp-bpc  { border-color: var(--botanical-fern); color: var(--botanical-fern); }
.ref-comp-tb   { border-color: var(--botanical-moss); color: var(--botanical-moss); }
.ref-comp-ghk  { border-color: var(--botanical-jade); color: var(--botanical-jade); }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.faq-item {
  border-bottom: 1px solid var(--rule);
  margin-bottom: 0;
}

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

.faq-question {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-strong);
  padding: 1.125rem 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  list-style: none;
  user-select: none;
}

.faq-question::-webkit-details-marker { display: none; }

.faq-chevron {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--primary);
  transition: transform var(--t-fast) var(--ease-sway);
}

details[open] .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  padding-bottom: 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text);
}

.faq-answer p:last-child { margin-bottom: 0; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--canopy-start);
  color: var(--text-on-canopy);
  margin-top: 4rem;
  clip-path: polygon(0 2rem, 100% 0, 100% 100%, 0 100%);
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.footer-disclaimer-band {
  text-align: center;
  padding: 1.5rem var(--container-px);
  border-bottom: 1px solid rgba(232, 244, 237, 0.1);
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
}

.footer-disclaimer {
  font-size: 0.9375rem;
  font-style: italic;
  color: var(--text-on-canopy);
  margin: 0;
}

.footer-disclaimer-leaf {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

.footer-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 0 var(--container-px);
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 2.5rem;
}

@media (min-width: 640px) {
  .footer-columns { grid-template-columns: repeat(3, 1fr); }
}

.footer-col-heading {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--botanical-jade);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(232, 244, 237, 0.15);
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col li { margin-bottom: 0.5rem; }

.footer-col a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-on-canopy);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  transition: color var(--t-fast) var(--ease-sway);
}

.footer-col a::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  transition: background-color var(--t-fast) var(--ease-sway);
}

.footer-col a:hover { color: var(--neutral-0); }
.footer-col a:hover::before { background: var(--botanical-jade); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem var(--container-px) 0;
  border-top: 1px solid rgba(232, 244, 237, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copyright {
  font-size: 0.8125rem;
  color: rgba(232, 244, 237, 0.5);
  margin: 0;
}

.footer-sprig {
  width: 24px;
  height: 24px;
  color: var(--botanical-jade);
  opacity: 0.7;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-form {
  max-width: 40rem;
  margin: 2rem 0;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 0.375rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  background: var(--surface);
  border: 1.5px solid var(--rule);
  border-radius: var(--radius-callout);
  padding: 0.75rem 1rem;
  transition: border-color var(--t-fast) var(--ease-sway),
              box-shadow var(--t-fast) var(--ease-sway);
  outline: none;
  -webkit-appearance: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 90, 60, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.6;
}

/* ============================================================
   404 PAGE
   ============================================================ */
.page-404 {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem var(--container-px);
}

.page-404-num {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 12vw, 9rem);
  font-weight: 500;
  color: var(--primary-100);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.page-404-msg {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 767px) {
  .nav-toggle { display: flex; flex-direction: column; justify-content: center; }

  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--rule);
    padding: 1rem var(--container-px);
    z-index: 99;
    box-shadow: 0 8px 24px -8px rgba(11, 61, 46, 0.15);
  }

  .site-nav.is-open { display: block; }

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .site-nav a {
    padding: 0.75rem 0;
    display: block;
    font-size: 1rem;
  }

  .site-header { position: relative; }

  .stat-cluster { justify-content: flex-start; }

  .footer-columns { grid-template-columns: 1fr; gap: 1.5rem; }
}

@media (min-width: 768px) {
  .page-section { padding: 3rem 0; }
}

@media (min-width: 1024px) {
  .content-with-rail {
    display: grid;
    grid-template-columns: 1fr 16rem;
    gap: 3rem;
    align-items: start;
  }

  .specimen-rail {
    position: sticky;
    top: 2rem;
  }
}

/* Specimen rail */
.specimen-rail {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-callout);
  padding: 1.25rem;
  display: none;
}

@media (min-width: 1024px) {
  .specimen-rail { display: block; }
}

.specimen-rail-heading {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.875rem;
  padding-bottom: 0.625rem;
  border-bottom: 1px solid var(--rule);
}

.specimen-toc {
  list-style: none;
  padding: 0;
  margin-bottom: 1.25rem;
}

.specimen-toc li { margin-bottom: 0.375rem; }

.specimen-toc a {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  transition: color var(--t-fast) var(--ease-sway);
}

.specimen-toc a:hover { color: var(--primary); }

.evidence-legend {
  border-top: 1px solid var(--rule);
  padding-top: 0.875rem;
}

.evidence-legend-title {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.evidence-legend-items {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

/* Horizontal chip strip for mobile */
.chip-strip {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 0.625rem;
  padding: 0.75rem 0;
  margin-bottom: 1rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.chip-strip::-webkit-scrollbar { display: none; }

@media (min-width: 1024px) {
  .chip-strip { display: none; }
}

/* ============================================================
   LAYOUT UTILITIES (replaces all inline style="" attrs)
   ============================================================ */
.pt-page { padding-top: 3rem; padding-bottom: 3rem; }
.mt-figure { margin-top: 2rem; }
.mt-section { margin-top: 2rem; }
.cta-row-center { justify-content: center; }
.cta-row-centered {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 2rem;
}
.cta-row-mt {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}
.chip-display {
  margin-bottom: 1rem;
  display: inline-flex;
}
.card-link-sm {
  margin-top: 1rem;
  font-size: 0.875rem;
  padding: 0.5rem 1.1rem;
}
.color-fern  { color: var(--botanical-fern); }
.color-moss  { color: var(--botanical-moss); }
.color-jade  { color: var(--botanical-jade); }
.cta-solo {
  margin-top: 2rem;
}
.contact-section { padding-top: 3rem; padding-bottom: 3rem; }
.faq-section { padding-top: 3rem; padding-bottom: 3rem; }
.about-section { padding-top: 3rem; padding-bottom: 3rem; }
.stacks-section { padding-top: 3rem; padding-bottom: 3rem; }
.dosage-section { padding-top: 3rem; padding-bottom: 3rem; }
.refs-section { padding-top: 3rem; padding-bottom: 3rem; }
.research-section { padding-top: 3rem; padding-bottom: 3rem; }

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

.text-muted { color: var(--text-muted); }
.text-on-canopy { color: var(--text-on-canopy); }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }

/* Motion: slow hero drift (reduced motion: suppressed) */
@media (prefers-reduced-motion: no-preference) {
  .hero-watercolor-wash {
    animation: wash-drift 50s ease-in-out infinite alternate;
  }
}

@keyframes wash-drift {
  from { background-position: 0% 0%; }
  to   { background-position: 100% 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}