/* ==========================================================================
   Exactamino - Spectrum compatibility layer for the ported encyclopedia
   --------------------------------------------------------------------------
   Everything below the divider is Eon Peptides' encyclopedia stylesheet,
   copied VERBATIM (see tools/port-encyclopedia.js). It is written against
   Eon's token names; this block re-points those names at Spectrum values so
   the typesetting is preserved and the colour system becomes Exactamino's.

   Do not hand-edit past the divider - it is regenerated by the port script.
   ========================================================================== */
body.enc {
  /* neutrals + surfaces */
  --hairline: var(--line);
  --hairline-strong: var(--line-strong);
  --paper-sunk: var(--surface-sunk);

  /* radii + elevation */
  --radius-xs: var(--r-xs); --radius-sm: var(--r-sm);
  --radius-md: var(--r-md); --radius-lg: var(--r-lg);
  --radius-pill: var(--r-pill);
  --shadow-1: var(--sh-1); --shadow-2: var(--sh-2); --shadow-3: var(--sh-3);
  --lift-card: 0 10px 28px rgba(13,20,36,.08);

  /* type scale */
  --fs-xs: var(--step--2); --fs-sm: var(--step--1);
  --fs-display: var(--step-5); --fs-eyebrow: 11px;
  --lh-tight: 1.15; --lh-body: 1.7;
  --tracking-display: -.025em; --tracking-eyebrow: .16em;

  /* spacing + motion */
  --space-4: 1rem; --space-5: 1.5rem;
  --dur-base: var(--dur); --dur-slow: var(--dur-mod);
  --ease-out: var(--ease-std); --stagger-step: 55ms;

  /* per-compound signature hues, restated on the Spectrum ramp. The source
     palette was warm; these are the cool equivalents so a monograph never
     fights the storefront it links into. */
  --c-emerald:#0f7a52; --c-emerald-ink:#0b5c3d; --c-emerald-tint:#e6f5ee;
  --c-azure:#1d4ed8;   --c-azure-ink:#1e40af;   --c-azure-tint:#eef4ff;
  --c-violet:#4c3fd8;  --c-violet-ink:#3a2fa8;  --c-violet-tint:#efeeff;
  --c-amber:#8a6a12;   --c-amber-ink:#6b520c;   --c-amber-tint:#fbf3e2;
  --c-rose:#c0392f;    --c-rose-ink:#94271f;    --c-rose-tint:#fdeeed;
  --c-teal:#0f766e;    --c-teal-ink:#0b5a54;    --c-teal-tint:#e6f4f2;
}

/* Structural classes the source markup expects but Spectrum does not define.
   .section and .eyebrow already exist in styles.css and are compatible. */
body.enc .container { width:100%; max-width:1200px; margin-inline:auto; padding-inline:24px; }
body.enc .section-head { margin-bottom: clamp(2rem, 1rem + 3vw, 3.5rem); }
body.enc .section-head h2 { margin-top:.6rem; }
body.enc .section-head__lead { color:var(--ink-2); line-height:1.75; max-width:74ch; margin-top:.75rem; }
body.enc .figure { font-family:var(--font-mono); font-variant-numeric:tabular-nums; }

/* The port drops Eon's own header/footer and lets app.js inject Spectrum
   chrome instead, so the first section must clear the fixed header. */
body.enc .enc-hero { margin-top: 0; }

/* ==========================================================================
   VERBATIM FROM EON BELOW THIS LINE
   ========================================================================== */

/* ============================================================================
   EXACTAMINO — Research Encyclopedia  ·  v4 "Clinical Editorial" (2026-07-26)
   ----------------------------------------------------------------------------
   ONE stylesheet drives the hub (/research/peptide-encyclopedia/) and all 36
   compound monographs. Pure CSS against the existing markup — no page edits.

   Design intent: a beautifully typeset scientific reference. Hairline-first,
   light-only, IBM Plex, generous vertical rhythm, numbered sections, monospace
   data. Motion is restrained: reveal + hover only. No canvas, no aurora.

   Class vocabulary (do not rename — 37 pages depend on it):
     .enc-hero __bg __inner __crumb __eyebrow __sub __lead __stats __stat
               __ruo __cta
     .enc-dir  __group __n __name __sub
     .enc-lab  __body
     .enc-toc  __label                      (injected by encyclopedia.js)
     .enc-ident __item                      (injected by encyclopedia.js)
     .enc-mono __meta __price __coa __ruo
     .enc-block · .enc-cards · .enc-card · .enc-tag · .enc-cite
     .enc-table (wrapped in .enc-tablewrap by JS)
     .enc-faq · .enc-qa __a
     .enc-lit  __title __meta
     .enc-xlink
   ========================================================================== */

/* ==========================================================================
   0 · Per-compound signature hue
   encyclopedia.js sets body[data-enc-cat]; the hub stays brand slate.
   ========================================================================== */
body.enc {
  --enc-accent: var(--accent);
  --enc-ink:    var(--accent-press);
  --enc-tint:   var(--accent-tint);
  --enc-tint-2: var(--accent-tint-2);
  --enc-rgb:    58, 93, 122;
}
body.enc[data-enc-cat="emerald"] {
  --enc-accent: var(--c-emerald); --enc-ink: var(--c-emerald-ink);
  --enc-tint: var(--c-emerald-tint); --enc-tint-2: #F2FBF7; --enc-rgb: 14, 158, 110;
}
body.enc[data-enc-cat="azure"] {
  --enc-accent: var(--c-azure); --enc-ink: var(--c-azure-ink);
  --enc-tint: var(--c-azure-tint); --enc-tint-2: #F3F6FE; --enc-rgb: 37, 99, 235;
}
body.enc[data-enc-cat="violet"] {
  --enc-accent: var(--c-violet); --enc-ink: var(--c-violet-ink);
  --enc-tint: var(--c-violet-tint); --enc-tint-2: #F7F3FE; --enc-rgb: 124, 58, 237;
}
body.enc[data-enc-cat="amber"] {
  --enc-accent: var(--c-amber); --enc-ink: var(--c-amber-ink);
  --enc-tint: var(--c-amber-tint); --enc-tint-2: #FDF7EE; --enc-rgb: 224, 131, 31;
}
body.enc[data-enc-cat="rose"] {
  --enc-accent: var(--c-rose); --enc-ink: var(--c-rose-ink);
  --enc-tint: var(--c-rose-tint); --enc-tint-2: #FDF4F4; --enc-rgb: 229, 72, 77;
}
body.enc[data-enc-cat="teal"] {
  --enc-accent: var(--c-teal); --enc-ink: var(--c-teal-ink);
  --enc-tint: var(--c-teal-tint); --enc-tint-2: #F1FAFB; --enc-rgb: 14, 154, 166;
}
body.enc[data-enc-cat="slate"] {
  --enc-accent: var(--accent); --enc-ink: var(--accent-press);
  --enc-tint: var(--accent-tint); --enc-tint-2: var(--accent-tint-2);
  --enc-rgb: 58, 93, 122;
}

/* Smooth anchor jumps. */
body.enc { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { body.enc { scroll-behavior: auto; } }

/* ==========================================================================
   1 · Hero — engraved grid + twin accent blooms
   ========================================================================== */
.enc-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3.2rem, 1.8rem + 6vw, 5.75rem) clamp(2.4rem, 1.5rem + 3.5vw, 3.75rem);
  border-bottom: 1px solid var(--hairline);
  background: var(--surface);
}

/* Two soft blooms in the compound's hue, faded out toward the fold. */
.enc-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(58% 92% at 12% -6%, rgba(var(--enc-rgb), 0.11), transparent 68%),
    radial-gradient(46% 78% at 96% 4%,  rgba(var(--enc-rgb), 0.07), transparent 70%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 52%, transparent 100%);
          mask-image: linear-gradient(180deg, #000 0%, #000 52%, transparent 100%);
}

/* Fine engraved graph-paper rule — reads as lab notebook, not decoration. */
.enc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right,  rgba(var(--enc-rgb), 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(var(--enc-rgb), 0.055) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(120% 96% at 8% 0%, #000 0%, transparent 72%);
          mask-image: radial-gradient(120% 96% at 8% 0%, #000 0%, transparent 72%);
}

.enc-hero__inner { position: relative; z-index: 1; max-width: 68rem; }

/* --- breadcrumb --- */
.enc-hero__crumb {
  position: relative;
  z-index: 1;
  margin-bottom: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--ink-3);
  letter-spacing: 0.01em;
}
.enc-hero__crumb a {
  color: var(--enc-ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.enc-hero__crumb a:hover { border-bottom-color: currentColor; }

/* --- eyebrow: leading accent tick + mono caps --- */
.enc-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--enc-ink);
}
.enc-hero__eyebrow::before {
  content: "";
  flex: none;
  width: 1.75rem;
  height: 2px;
  border-radius: 2px;
  background: var(--enc-accent);
}

/* --- headline --- */
.enc-hero h1 {
  margin-top: var(--space-4);
  color: var(--ink);
  font-size: var(--fs-display);
  font-weight: 600;
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-display);
  max-width: 20ch;
  text-wrap: balance;
}

.enc-hero__sub {
  margin-top: var(--space-4);
  font-size: clamp(1.0625rem, 0.95rem + 0.4vw, 1.25rem);
  font-weight: 600;
  line-height: 1.4;
  color: var(--enc-ink);
  max-width: 44ch;
  text-wrap: balance;
}

.enc-hero__lead {
  margin-top: var(--space-5);
  font-size: 1.0625rem;
  max-width: 64ch;
  line-height: var(--lh-body);
  color: var(--ink-2);
}

/* --- hub stat rail: hairline-divided, not floating boxes --- */
.enc-hero__stats {
  margin-top: clamp(1.9rem, 1rem + 2.6vw, 2.75rem);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 46rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.enc-hero__stat {
  padding: clamp(0.95rem, 0.7rem + 0.8vw, 1.35rem) clamp(0.9rem, 0.6rem + 0.9vw, 1.4rem);
  border-left: 1px solid var(--hairline);
  background: linear-gradient(180deg, var(--enc-tint-2), transparent 62%);
}
.enc-hero__stat:first-child { border-left: 0; }
.enc-hero__stat .figure {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 1rem + 1.4vw, 1.95rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--enc-ink);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.enc-hero__stat span:last-child {
  display: block;
  margin-top: 0.4rem;
  font-size: var(--fs-xs);
  line-height: 1.4;
  color: var(--ink-3);
}

/* --- RUO badge --- */
.enc-hero__ruo {
  margin-top: clamp(1.6rem, 1rem + 2vw, 2.15rem);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1rem 0.5rem 0.85rem;
  border-radius: var(--radius-pill);
  background: var(--enc-tint);
  border: 1px solid rgba(var(--enc-rgb), 0.26);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-2);
  line-height: 1.35;
}
.enc-hero__ruo::before {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--enc-accent);
  box-shadow: 0 0 0 3px rgba(var(--enc-rgb), 0.16);
}

.enc-hero__cta {
  margin-top: clamp(1.5rem, 1rem + 1.6vw, 2.1rem);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (max-width: 640px) {
  .enc-hero__stats { grid-template-columns: 1fr; }
  .enc-hero__stat { border-left: 0; border-top: 1px solid var(--hairline); }
  .enc-hero__stat:first-child { border-top: 0; }
  .enc-hero h1 { max-width: none; }
}

/* ==========================================================================
   2 · Molecular identity strip (monographs)
   Injected by encyclopedia.js from the "Molecular data" table, so the key
   figures sit above the fold instead of only inside a table further down.
   ========================================================================== */
.enc-ident {
  margin-top: clamp(1.8rem, 1rem + 2.4vw, 2.5rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  max-width: 52rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.enc-ident__item {
  padding: 0.9rem 1.1rem;
  border-left: 1px solid var(--hairline);
  min-width: 0;
}
.enc-ident__item:first-child { border-left: 0; }
.enc-ident__item dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.enc-ident__item dd {
  margin: 0.4rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}
@media (max-width: 560px) {
  .enc-ident { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .enc-ident__item:nth-child(odd) { border-left: 0; }
  .enc-ident__item:nth-child(n + 3) { border-top: 1px solid var(--hairline); }
}

/* ==========================================================================
   3 · Hub — compound directory
   ========================================================================== */
.enc-dir { display: grid; gap: clamp(2.2rem, 1.2rem + 3vw, 3.4rem); }
.enc-dir__group { min-width: 0; }

/* Each group carries its own hue so the index reads as a classified library. */
.enc-dir__group:nth-of-type(1) { --grp: var(--accent);   --grp-ink: var(--accent-press); --grp-tint: var(--accent-tint); }
.enc-dir__group:nth-of-type(2) { --grp: var(--c-violet); --grp-ink: var(--c-violet-ink); --grp-tint: var(--c-violet-tint); }
.enc-dir__group:nth-of-type(3) { --grp: var(--c-amber);  --grp-ink: var(--c-amber-ink);  --grp-tint: var(--c-amber-tint); }
.enc-dir__group:nth-of-type(4) { --grp: var(--c-teal);   --grp-ink: var(--c-teal-ink);   --grp-tint: var(--c-teal-tint); }

.enc-dir__group h3 {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.1rem;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.012em;
  color: var(--ink);
}
.enc-dir__group h3::before {
  content: "";
  flex: none;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 2px;
  background: var(--grp);
  transform: rotate(45deg);
}
.enc-dir__group h3::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--hairline), transparent);
}
.enc-dir__n {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--grp-ink);
  background: var(--grp-tint);
  border-radius: var(--radius-pill);
  padding: 0.18rem 0.62rem;
  font-variant-numeric: tabular-nums;
}

.enc-dir__group ul {
  display: grid;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(auto-fill, minmax(16.5rem, 1fr));
}
.enc-dir__group li { list-style: none; min-width: 0; }
.enc-dir__group li::marker { content: ""; }

.enc-dir__group li a {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  height: 100%;
  padding: 1.05rem 2.5rem 1.15rem 1.15rem;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  text-decoration: none;
  overflow: hidden;
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow   var(--dur-base) var(--ease-out),
    transform    var(--dur-base) var(--ease-out);
}
/* Left edge in the group hue — grows on hover. */
.enc-dir__group li a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--grp);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform var(--dur-base) var(--ease-out);
}
.enc-dir__group li a::after {
  content: "\2192";
  position: absolute;
  top: 1rem;
  right: 1.05rem;
  font-family: var(--font-mono);
  color: var(--grp-ink);
  opacity: 0;
  transform: translateX(-5px);
  transition:
    opacity   var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out);
}
.enc-dir__group li a:hover,
.enc-dir__group li a:focus-visible {
  border-color: var(--hairline-strong);
  transform: translateY(var(--lift-card));
  box-shadow: var(--shadow-3);
}
.enc-dir__group li a:hover::before,
.enc-dir__group li a:focus-visible::before { transform: scaleY(1); }
.enc-dir__group li a:hover::after,
.enc-dir__group li a:focus-visible::after { opacity: 1; transform: translateX(0); }

.enc-dir__name {
  display: block;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  letter-spacing: -0.012em;
}
.enc-dir__sub {
  display: block;
  font-size: var(--fs-sm);
  color: var(--ink-3);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

/* ==========================================================================
   4 · Hub — lab results callout
   ========================================================================== */
.enc-lab {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem 2.5rem;
  padding: clamp(1.6rem, 1rem + 2vw, 2.4rem);
  border: 1px solid rgba(var(--enc-rgb), 0.28);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(90% 140% at 0% 0%, rgba(var(--enc-rgb), 0.10), transparent 62%),
    var(--surface);
  box-shadow: var(--shadow-2);
}
.enc-lab__body { max-width: 54ch; min-width: 0; }
.enc-lab__body .eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--enc-ink);
}
.enc-lab__body h3 {
  margin-top: 0.5rem;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.014em;
  color: var(--ink);
}
.enc-lab__body p {
  margin-top: 0.55rem;
  font-size: var(--fs-sm);
  color: var(--ink-2);
  line-height: var(--lh-body);
}

/* ==========================================================================
   5 · Monograph shell + sticky table of contents
   ========================================================================== */
.enc-mono { min-width: 0; counter-reset: encsec; }

@media (min-width: 1080px) {
  .enc-mono.has-toc {
    display: grid;
    grid-template-columns: 15.5rem minmax(0, 1fr);
    gap: clamp(2.5rem, 1rem + 4vw, 4.5rem);
    align-items: start;
  }
  /* Everything that is not the ToC sits in the content column. */
  .enc-mono.has-toc > *:not(.enc-toc) { grid-column: 2; }
  .enc-mono.has-toc > .enc-toc { grid-column: 1; grid-row: 1 / -1; }
}

.enc-toc {
  display: none;
  position: sticky;
  top: 6.5rem;
  align-self: start;
  min-width: 0;
}
@media (min-width: 1080px) { .enc-toc { display: block; } }

.enc-toc__label {
  display: block;
  margin-bottom: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.enc-toc a {
  display: block;
  padding: 0.5rem 0 0.5rem 0.9rem;
  border-left: 2px solid var(--hairline);
  font-size: var(--fs-sm);
  line-height: 1.4;
  color: var(--ink-3);
  text-decoration: none;
  transition:
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
}
.enc-toc a:hover { color: var(--ink); border-left-color: var(--hairline-strong); }
.enc-toc a.is-active {
  color: var(--enc-ink);
  font-weight: 600;
  border-left-color: var(--enc-accent);
  background: linear-gradient(to right, rgba(var(--enc-rgb), 0.07), transparent 82%);
}

/* --- meta bar: price + COA --- */
.enc-mono__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem 1.75rem;
  padding: 1rem 1.25rem;
  margin-bottom: clamp(2.2rem, 1.2rem + 2.6vw, 3.2rem);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--enc-accent);
  border-radius: var(--radius-md);
  background: linear-gradient(to right, var(--enc-tint-2), var(--surface) 55%);
}
.enc-mono__price { font-size: var(--fs-sm); color: var(--ink-2); line-height: 1.5; }
.enc-mono__price a {
  font-weight: 600;
  color: var(--enc-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(var(--enc-rgb), 0.35);
  transition: border-color var(--dur-fast) var(--ease-out);
}
.enc-mono__price a:hover { border-bottom-color: currentColor; }

.enc-mono__coa {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex: none;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--ink-2);
  text-decoration: none;
  transition:
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
/* Document glyph, drawn in CSS so there is no extra asset request. */
.enc-mono__coa::before {
  content: "";
  flex: none;
  width: 0.7rem;
  height: 0.85rem;
  border: 1.5px solid currentColor;
  border-radius: 1px;
  opacity: 0.6;
  clip-path: polygon(0 0, 68% 0, 100% 26%, 100% 100%, 0 100%);
}
.enc-mono__coa:hover {
  color: var(--enc-ink);
  border-color: var(--enc-accent);
  box-shadow: 0 0 0 3px rgba(var(--enc-rgb), 0.10);
}

/* ==========================================================================
   6 · Content blocks — numbered sections
   ========================================================================== */
.enc-block {
  margin-bottom: clamp(2.6rem, 1.4rem + 3.2vw, 4.25rem);
  scroll-margin-top: 6rem;
}
.enc-block:last-of-type { margin-bottom: clamp(2rem, 1rem + 2.4vw, 3rem); }

.enc-block > h3 {
  counter-increment: encsec;
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin-bottom: clamp(1.1rem, 0.8rem + 0.9vw, 1.6rem);
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--hairline);
  font-size: clamp(1.2rem, 1.05rem + 0.55vw, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.018em;
  color: var(--ink);
}
/* Zero-padded section index — the strongest single formatting cue on the page. */
.enc-block > h3::before {
  content: counter(encsec, decimal-leading-zero);
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--enc-ink);
  background: var(--enc-tint);
  border-radius: var(--radius-xs);
  padding: 0.18rem 0.45rem;
  position: relative;
  top: -0.1em;
}

/* ==========================================================================
   7 · Data tables
   ========================================================================== */
.enc-tablewrap {
  overflow-x: auto;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--surface);
  -webkit-overflow-scrolling: touch;
}
.enc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
  background: var(--surface);
}
/* Standalone fallback border when JS has not wrapped the table. */
.enc-block > .enc-table {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.enc-table tr + tr { border-top: 1px solid var(--hairline); }
.enc-table tbody tr:nth-child(even) { background: rgba(240, 240, 242, 0.5); }
.enc-table tbody tr:hover { background: rgba(var(--enc-rgb), 0.045); }

.enc-table th[scope="row"] {
  width: 38%;
  min-width: 11rem;
  padding: 0.8rem 1rem;
  text-align: left;
  vertical-align: top;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.045em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-right: 1px solid var(--hairline);
}
.enc-table td {
  padding: 0.8rem 1rem;
  vertical-align: top;
  color: var(--ink);
  line-height: 1.55;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
@media (max-width: 560px) {
  .enc-table th[scope="row"] { width: 42%; min-width: 8.5rem; font-size: 0.7rem; }
  .enc-table th[scope="row"], .enc-table td { padding: 0.7rem 0.75rem; }
}

/* ==========================================================================
   8 · Mechanism / evidence cards
   ========================================================================== */
.enc-cards {
  display: grid;
  gap: clamp(0.85rem, 0.5rem + 1vw, 1.15rem);
  grid-template-columns: repeat(auto-fit, minmax(17.5rem, 1fr));
}

.enc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: clamp(1.15rem, 0.9rem + 0.7vw, 1.5rem);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-width: 0;
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow   var(--dur-base) var(--ease-out),
    transform    var(--dur-base) var(--ease-out);
}
/* Hairline top bar in the card's hue — sweeps full width on hover. */
.enc-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  height: 2px;
  width: 2.75rem;
  background: var(--card-hue, var(--enc-accent));
  transition: width var(--dur-slow) var(--ease-out);
}
.enc-card:hover {
  transform: translateY(var(--lift-card));
  border-color: var(--hairline-strong);
  box-shadow: var(--shadow-3);
}
.enc-card:hover::before { width: 100%; }

/* Rotate the categorical accents across the grid for colour rhythm. */
.enc-card:nth-child(6n + 1) { --card-hue: var(--c-emerald); --card-ink: var(--c-emerald-ink); --card-tint: var(--c-emerald-tint); }
.enc-card:nth-child(6n + 2) { --card-hue: var(--c-azure);   --card-ink: var(--c-azure-ink);   --card-tint: var(--c-azure-tint); }
.enc-card:nth-child(6n + 3) { --card-hue: var(--c-violet);  --card-ink: var(--c-violet-ink);  --card-tint: var(--c-violet-tint); }
.enc-card:nth-child(6n + 4) { --card-hue: var(--c-amber);   --card-ink: var(--c-amber-ink);   --card-tint: var(--c-amber-tint); }
.enc-card:nth-child(6n + 5) { --card-hue: var(--c-teal);    --card-ink: var(--c-teal-ink);    --card-tint: var(--c-teal-tint); }
.enc-card:nth-child(6n + 6) { --card-hue: var(--accent);    --card-ink: var(--accent-press);  --card-tint: var(--accent-tint); }

.enc-tag {
  align-self: flex-start;
  display: inline-block;
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-pill);
  background: var(--card-tint, var(--enc-tint));
  color: var(--card-ink, var(--enc-ink));
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.075em;
  text-transform: uppercase;
  line-height: 1.5;
}

.enc-card h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.012em;
  color: var(--ink);
  text-wrap: balance;
}
.enc-card p {
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
  color: var(--ink-2);
}

.enc-card ul {
  display: grid;
  gap: 0.45rem;
  margin: 0.15rem 0 0;
  padding: 0.8rem 0 0;
  list-style: none;
  border-top: 1px solid var(--hairline);
}
.enc-card ul li {
  position: relative;
  padding-left: 1.25rem;
  font-size: var(--fs-sm);
  line-height: 1.5;
  color: var(--ink-2);
  list-style: none;
}
.enc-card ul li::marker { content: ""; }
/* Small accent tick instead of a bullet. */
.enc-card ul li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.48em;
  width: 0.42rem;
  height: 0.24rem;
  border-left: 1.5px solid var(--card-hue, var(--enc-accent));
  border-bottom: 1.5px solid var(--card-hue, var(--enc-accent));
  transform: rotate(-45deg);
}

/* Citation line pinned to the card foot. */
.enc-card .enc-cite {
  margin-top: auto;
  padding-top: 0.8rem;
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--ink-3);
  letter-spacing: 0.01em;
}
.enc-card .enc-cite::before { content: "\25B8  "; color: var(--card-hue, var(--enc-accent)); }

/* ==========================================================================
   9 · FAQ accordion
   ========================================================================== */
.enc-faq {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}
.enc-qa { border-top: 1px solid var(--hairline); }
.enc-qa:first-child { border-top: 0; }

.enc-qa > summary {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.9875rem;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.008em;
  color: var(--ink);
  transition:
    background-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}
.enc-qa > summary::-webkit-details-marker { display: none; }
.enc-qa > summary::marker { content: ""; }
.enc-qa > summary:hover { background: var(--enc-tint-2); color: var(--enc-ink); }

/* Chevron, drawn in CSS; rotates on open. */
.enc-qa > summary::after {
  content: "";
  flex: none;
  margin-left: auto;
  margin-top: 0.3em;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 1.75px solid var(--enc-accent);
  border-bottom: 1.75px solid var(--enc-accent);
  transform: rotate(45deg);
  transform-origin: 60% 60%;
  transition: transform var(--dur-base) var(--ease-out);
}
.enc-qa[open] > summary { color: var(--enc-ink); background: var(--enc-tint-2); }
.enc-qa[open] > summary::after { transform: rotate(-135deg); }

.enc-qa__a {
  margin-left: 1.15rem;
  padding: 0 1.15rem 1.15rem;
  border-left: 2px solid var(--enc-accent);
}
.enc-qa__a p {
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
  color: var(--ink-2);
  max-width: 72ch;
}
.enc-qa__a p + p { margin-top: 0.7rem; }

/* ==========================================================================
   10 · Literature — numbered reference list
   ========================================================================== */
.enc-lit {
  counter-reset: enclit;
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}
.enc-lit li {
  counter-increment: enclit;
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 0.35rem 0.85rem;
  padding: 0.95rem 1.15rem 0.95rem 3.4rem;
  border-top: 1px solid var(--hairline);
  list-style: none;
  transition: background-color var(--dur-fast) var(--ease-out);
}
.enc-lit li:first-child { border-top: 0; }
.enc-lit li:hover { background: var(--enc-tint-2); }
.enc-lit li::marker { content: ""; }
.enc-lit li::before {
  content: counter(enclit, decimal-leading-zero);
  position: absolute;
  left: 1.15rem;
  top: 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--enc-ink);
  font-variant-numeric: tabular-nums;
}
.enc-lit .enc-tag {
  grid-column: 1;
  --card-tint: var(--enc-tint);
  --card-ink: var(--enc-ink);
}
.enc-lit__title {
  grid-column: 2;
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink);
  letter-spacing: -0.006em;
}
.enc-lit__meta {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--ink-3);
  letter-spacing: 0.01em;
}
@media (max-width: 560px) {
  .enc-lit li {
    grid-template-columns: minmax(0, 1fr);
    padding-left: 1.15rem;
    padding-top: 2.1rem;
  }
  .enc-lit li::before { top: 0.8rem; }
  .enc-lit .enc-tag,
  .enc-lit__title,
  .enc-lit__meta { grid-column: 1; }
}

/* ==========================================================================
   11 · Monograph footer — RUO note + cross-links
   ========================================================================== */
.enc-mono__ruo {
  margin-top: clamp(2rem, 1.2rem + 2vw, 2.75rem);
  padding: 0.9rem 0 0.9rem 1.1rem;
  border-left: 2px solid var(--hairline-strong);
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--ink-3);
  max-width: 78ch;
}

.enc-xlink {
  margin-top: clamp(1.6rem, 1rem + 1.8vw, 2.25rem);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}
.enc-xlink a {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.95rem 1.35rem;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--ink-2);
  text-decoration: none;
  transition:
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
.enc-xlink a:hover {
  color: var(--enc-ink);
  border-color: var(--enc-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}
/* Background is --enc-ink, NOT --enc-accent: white on the lighter categorical
   hues (emerald 2.9:1, teal, amber) fails AA. The -ink variants all clear
   5:1 against white. */
.enc-xlink a.is-primary {
  background: var(--enc-ink);
  border-color: var(--enc-ink);
  color: #fff;
}
.enc-xlink a.is-primary:hover {
  color: #fff;
  filter: brightness(0.94);
  box-shadow: 0 12px 28px -14px rgba(var(--enc-rgb), 0.6);
}

/* ==========================================================================
   12 · Motion — reveal on scroll (armed only when JS is present)
   ========================================================================== */
.enc-anim body.enc [data-enc-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity   var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  transition-delay: calc(var(--enc-i, 0) * var(--stagger-step));
}
.enc-anim body.enc [data-enc-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .enc-anim body.enc [data-enc-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ==========================================================================
   13 · Print — the reference should print like a reference
   ========================================================================== */
@media print {
  body.enc .enc-hero__bg,
  body.enc .enc-hero::before,
  body.enc .enc-toc,
  body.enc .enc-xlink,
  body.enc #site-nav,
  body.enc .footer,
  body.enc [data-eon-drawer] { display: none !important; }

  body.enc .enc-mono.has-toc { display: block; }
  body.enc [data-enc-reveal] { opacity: 1 !important; transform: none !important; }
  body.enc .enc-block { break-inside: avoid; }
  body.enc .enc-card,
  body.enc .enc-table,
  body.enc .enc-lit li { break-inside: avoid; }
  body.enc .enc-hero { border-bottom: 1px solid #999; }
}