/* BPC-157 Safe — Luxury Elegant Aesthetic
   Palette: deep noble navy #192A56 | champagne gold #F7D794 | warm off-white #FCFBFB | cipria-pink #E8B4B0
   Typography: Cormorant Garamond (display) + Jost (body) + JetBrains Mono (inline)
   Layout: asymmetric editorial 14-col grid, ~42rem reading column, ornament rail at cols 11-13
*/

/* ============================================================
   CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Palette */
  --primary:            #192A56;
  --primary-50:         #E4E8F1;
  --primary-100:        #C5CCE0;
  --primary-700:        #0F1B3B;
  --primary-900:        #0A1228;
  --secondary:          #0F1B3B;
  --accent:             #F7D794;
  --accent-50:          #FBF1DB;
  --accent-dark:        #C9A75A;
  --accent-deepgold:    #A6862F;
  --rose:               #E8B4B0;
  --rose-50:            #F8E6E4;
  --neutral-50:         #FCFBFB;
  --neutral-100:        #F5F2EC;
  --neutral-200:        #E8E2D5;
  --neutral-300:        #D6CFC0;
  --neutral-500:        #7A7468;
  --neutral-700:        #3A3530;
  --neutral-900:        #1A1813;
  --bg:                 #FCFBFB;
  --surface:            #FFFFFF;
  --surface-alt:        #F5F2EC;
  --surface-dark:       #192A56;
  --surface-dark-alt:   #0F1B3B;
  --text:               #1A1813;
  --text-muted:         #5C564C;
  --text-on-dark:       #FCFBFB;
  --text-on-dark-muted: #C5CCE0;
  --text-accent:        #A6862F;
  --rule:               #E8E2D5;
  --rule-strong:        #192A56;
  --rule-gold:          #F7D794;
  --rule-gold-dark:     #C9A75A;
  --success:            #3F6B5A;
  --warning:            #C9A75A;
  --danger:             #8E4540;

  /* Typography */
  --font-heading: 'Cormorant Garamond', 'EB Garamond', Garamond, 'Times New Roman', Georgia, serif;
  --font-body:    'Jost', 'Futura', 'Avenir Next', 'Century Gothic', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'IBM Plex Mono', 'Courier New', monospace;

  /* Scale */
  --h1:      clamp(3rem, 6.5vw, 5.75rem);
  --h2:      clamp(2rem, 3.75vw, 3rem);
  --h3:      1.5rem;
  --h4:      1.1875rem;
  --body:    1.0625rem;
  --lede:    1.3125rem;
  --small:   0.875rem;
  --eyebrow: 0.75rem;
  --micro:   0.6875rem;

  /* Layout */
  --max-width:        78rem;
  --article-width:    42rem;
  --container-px:     clamp(1.25rem, 4.5vw, 3rem);
  --outer-margin:     clamp(1.5rem, 6vw, 4.5rem);

  /* Radii */
  --radius-button: 9999px;
  --radius-card:   0.5rem;
  --radius-callout: 0.375rem;

  /* Motion */
  --transition: 280ms ease-out;
}

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

html { font-size: 16px; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0ms !important; animation-duration: 0ms !important; }
}

body {
  font-family: var(--font-body);
  font-size: var(--body);
  font-weight: 400;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
a:focus-visible {
  outline: 2.5px solid var(--accent-dark);
  outline-offset: 2px;
  border-radius: 2px;
}
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.08;
  color: var(--primary);
}

h1 {
  font-size: var(--h1);
  font-weight: 500;
  letter-spacing: -0.012em;
}

h2 {
  font-size: var(--h2);
  font-weight: 600;
  letter-spacing: -0.008em;
  position: relative;
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

h2::after {
  content: '';
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60%;
  height: 1px;
  background: var(--rule-gold-dark);
}

h3 {
  font-size: var(--h3);
  font-weight: 600;
  letter-spacing: -0.004em;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: var(--h4);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

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

/* Eyebrow label */
.eyebrow {
  font-family: var(--font-body);
  font-size: var(--eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.26em;
  color: var(--accent-deepgold);
  margin-bottom: 1rem;
  display: block;
}

/* Lede / intro paragraph */
.lede {
  font-size: var(--lede);
  font-weight: 300;
  font-style: italic;
  line-height: 1.55;
  letter-spacing: 0.005em;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

/* Drop cap */
.drop-cap::first-letter {
  font-family: var(--font-heading);
  font-size: 5.5rem;
  font-weight: 500;
  line-height: 0.8;
  float: left;
  color: var(--accent);
  margin-right: 0.75rem;
  margin-top: 0.05em;
  margin-bottom: -0.05em;
  -webkit-text-stroke: 1px var(--accent-deepgold);
}

/* Inline code */
code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  font-weight: 500;
  background: var(--neutral-100);
  border-radius: 0.25rem;
  border-left: 2px solid var(--rule-gold-dark);
  padding: 0.1em 0.5em;
  color: var(--primary);
}

/* Strong / Bold */
strong { font-weight: 600; }
em { font-style: italic; }

/* Section charter numeral */
.section-numeral {
  font-family: var(--font-mono);
  font-size: var(--micro);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-deepgold);
  display: block;
  margin-bottom: 1rem;
}

/* Maison seal: 6px gold square marker */
.maison-seal {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  flex-shrink: 0;
}

/* ============================================================
   LAYOUT CONTAINERS
   ============================================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

/* Editorial layout: reading column + ornament rail */
.editorial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

@media (min-width: 1024px) {
  .editorial-grid {
    grid-template-columns: 1fr var(--article-width) 1fr 14rem;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--outer-margin);
  }

  .editorial-grid .article-col {
    grid-column: 2;
    padding: 0 2rem;
  }

  .editorial-grid .ornament-rail {
    grid-column: 4;
    padding-left: 2rem;
  }
}

.article-col {
  max-width: var(--article-width);
  margin: 0 auto;
  padding: 0 var(--container-px);
  width: 100%;
}

@media (min-width: 1024px) {
  .article-col {
    margin: 0;
    padding: 0;
  }
}

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  background: var(--primary);
  border-bottom: 1px solid var(--rule-gold);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
  gap: 2rem;
}

/* Maison wordmark */
.site-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-crown {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  margin-bottom: 4px;
}

.brand-seal {
  width: 6px;
  height: 6px;
  background: var(--accent);
  display: block;
  margin-bottom: 3px;
}

.brand-rule-line {
  display: block;
  width: 28px;
  height: 1px;
  background: var(--accent);
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 500;
  font-variant: small-caps;
  letter-spacing: 0.18em;
  color: var(--accent);
  line-height: 1;
  margin-top: 2px;
}

/* Navigation */
.site-nav ul {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.site-nav a {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--text-on-dark);
  text-decoration: none;
  letter-spacing: 0.01em;
  padding-bottom: 2px;
  position: relative;
  transition: color var(--transition);
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  right: 50%;
  height: 1.5px;
  background: var(--accent);
  transition: left var(--transition), right var(--transition);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  left: 0;
  right: 0;
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-on-dark);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--accent);
  transition: transform var(--transition), opacity var(--transition);
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .site-nav {
    display: none;
    position: absolute;
    top: 88px;
    left: 0;
    right: 0;
    background: var(--primary-700);
    border-bottom: 1px solid var(--rule-gold);
    padding: 1.5rem var(--container-px);
  }

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

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .site-nav a::after { display: none; }
}

/* ============================================================
   HERO — INDEX PAGE
   ============================================================ */
.hero-crown {
  background: var(--primary);
  position: relative;
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(3rem, 8vw, 5rem);
}

.hero-crown::after {
  content: '';
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
}

.hero-crown .container {
  position: relative;
}

.hero-eyebrow {
  font-family: var(--font-body);
  font-size: var(--eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.26em;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: block;
}

.hero-crown h1 {
  color: var(--text-on-dark);
  margin-bottom: 0.25rem;
}

.hero-headline-italic {
  font-family: var(--font-heading);
  font-size: var(--h1);
  font-weight: 400;
  font-style: italic;
  letter-spacing: -0.012em;
  color: var(--accent);
  display: block;
  line-height: 1.05;
  margin-bottom: 1rem;
}

.hero-rule {
  display: block;
  height: 1px;
  background: var(--rule-gold);
  margin: 1.5rem 0;
  width: 100%;
  max-width: 52rem;
}

.hero-subheadline {
  font-family: var(--font-body);
  font-size: var(--lede);
  font-weight: 300;
  font-style: italic;
  line-height: 1.55;
  color: var(--text-on-dark-muted);
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

/* Maison signature plate in hero */
.hero-maison-plate {
  display: none;
}

@media (min-width: 1024px) {
  .hero-maison-plate {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    position: absolute;
    right: var(--container-px);
    bottom: clamp(3rem, 8vw, 5rem);
  }

  .hero-maison-plate .est-text {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-style: italic;
    color: var(--text-on-dark-muted);
  }

  .hero-maison-plate .maison-label {
    font-family: var(--font-mono);
    font-size: var(--micro);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--accent-dark);
  }
}

/* CTA row */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

/* ============================================================
   INNER PAGE HERO (non-index)
   ============================================================ */
.page-hero {
  background: var(--primary);
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  position: relative;
}

.page-hero::after {
  content: '';
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
}

.page-hero .eyebrow { color: var(--accent); margin-bottom: 1rem; }

.page-hero h1 {
  color: var(--text-on-dark);
  font-size: clamp(2.25rem, 5vw, 4rem);
  margin-bottom: 1rem;
}

.page-hero p {
  font-family: var(--font-body);
  font-size: var(--lede);
  font-weight: 300;
  font-style: italic;
  color: var(--text-on-dark-muted);
  max-width: 38rem;
  line-height: 1.55;
  margin-bottom: 2rem;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--small);
  color: var(--text-muted);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.breadcrumb a { color: var(--accent-deepgold); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--neutral-300); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: var(--radius-button);
  padding: 0.9375rem 1.875rem;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
  cursor: pointer;
}

.btn:focus-visible {
  outline: 2.5px solid var(--accent-dark);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary);
  border: 1.5px solid var(--accent);
}

.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-deepgold);
  color: var(--primary-900);
}

.btn-primary:focus-visible {
  outline-color: var(--primary);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn-secondary:hover {
  background: rgba(247, 215, 148, 0.10);
  border-color: #FBE6BC;
}

.btn-ghost {
  background: transparent;
  color: var(--accent-deepgold);
  border: none;
  padding: 0.5rem 0;
  position: relative;
}

.btn-ghost::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  right: 50%;
  height: 1px;
  background: var(--accent);
  transition: left var(--transition), right var(--transition);
}

.btn-ghost:hover::after {
  left: 0;
  right: 0;
}

/* ============================================================
   MAIN CONTENT AREA
   ============================================================ */
.site-main {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

/* Article sections */
.content-section {
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.content-section:last-child { margin-bottom: 0; }

/* Pull quote */
.pull-quote {
  position: relative;
  padding: 1.5rem 1.5rem 1.5rem 2.5rem;
  margin: 2.5rem 0;
  border-left: 2px solid var(--accent);
}

.pull-quote::before {
  content: '\201C';
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 500;
  font-style: italic;
  color: var(--accent-dark);
  line-height: 1;
  position: absolute;
  top: 0.5rem;
  left: -1rem;
}

.pull-quote blockquote {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.75vw, 2rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1.35;
  color: var(--primary);
}

.pull-quote cite {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-body);
  font-size: var(--eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.26em;
  color: var(--accent-deepgold);
  font-style: normal;
}

.pull-quote cite::before { content: '\2014\00a0'; }

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-card);
  padding: 2rem;
  position: relative;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--accent-dark);
}

/* Maison 6px seal on card top-right */
.card::after {
  content: '';
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 6px;
  height: 6px;
  background: var(--accent);
}

.card-charter-numeral {
  font-family: var(--font-mono);
  font-size: var(--micro);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-deepgold);
  display: block;
  margin-bottom: 0.5rem;
}

.card-eyebrow {
  font-family: var(--font-body);
  font-size: var(--eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.26em;
  color: var(--accent-deepgold);
  display: block;
  margin-bottom: 0.75rem;
}

.card h3 {
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule-gold-dark);
}

/* Charter card variant */
.card-charter {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--text-on-dark);
}

.card-charter::after { background: var(--text-on-dark); }

.card-charter h3 {
  color: var(--accent);
  border-bottom-color: rgba(247, 215, 148, 0.3);
}

.card-charter .card-charter-numeral,
.card-charter .card-eyebrow {
  color: var(--accent);
}

.card-charter p { color: var(--text-on-dark-muted); }

.card-charter::before {
  content: '';
  display: block;
  height: 2px;
  background: var(--accent);
  margin-bottom: 1.5rem;
  margin-top: -2rem;
  margin-left: -2rem;
  margin-right: -2rem;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

/* Caveat card variant */
.card-caveat {
  background: var(--surface);
  border-top: 2px solid var(--rose);
}

.card-caveat .card-eyebrow {
  color: var(--primary);
  letter-spacing: 0.26em;
}

/* Corroborated callout */
.callout-corroborated {
  background: var(--accent-50);
  border-top: 2px solid var(--accent-dark);
  border-radius: var(--radius-callout);
  padding: 1.5rem 2rem;
  position: relative;
}

.callout-corroborated::after {
  content: '';
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 6px;
  height: 6px;
  background: var(--accent);
}

.callout-corroborated .callout-label {
  font-family: var(--font-body);
  font-size: var(--eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.26em;
  color: var(--accent-deepgold);
  display: block;
  margin-bottom: 0.75rem;
}

/* ============================================================
   EVIDENCE CHIPS
   ============================================================ */
.chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: var(--micro);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  padding: 0.375rem 0.625rem;
  border-radius: 0.25rem;
  vertical-align: middle;
}

.chip-preclinical {
  background: var(--accent-50);
  color: var(--accent-deepgold);
}

.chip-human {
  background: var(--primary);
  color: var(--text-on-dark);
}

.chip-gap {
  background: var(--rose-50);
  color: var(--primary);
}

/* ============================================================
   INLINE CITATIONS
   ============================================================ */
sup.cite a {
  font-family: var(--font-body);
  font-size: 0.75em;
  font-weight: 500;
  color: var(--accent-deepgold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
  vertical-align: super;
  line-height: 0;
}

sup.cite a:hover { border-bottom-color: var(--accent); }

/* ============================================================
   FIGURE PLATES
   ============================================================ */
.figure-plate {
  position: relative;
  margin: 2.5rem 0;
}

.figure-plate-inner {
  border: 1px solid var(--rule-gold-dark);
  background: var(--neutral-100);
  padding: 0.625rem;
  position: relative;
}

.figure-plate-inner::after {
  content: '';
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 6px;
  height: 6px;
  background: var(--accent);
}

.figure-plate-inner img {
  width: 100%;
  height: auto;
  display: block;
}

.figure-caption {
  margin-top: 0.75rem;
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
}

.plate-number {
  font-family: var(--font-mono);
  font-size: var(--micro);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-deepgold);
  white-space: nowrap;
}

.plate-caption-text {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-style: italic;
  color: var(--text-muted);
}

/* ============================================================
   TABLES
   ============================================================ */
.maison-table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
  position: relative;
}

.maison-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 2px solid var(--accent);
  border-bottom: 1px solid var(--primary);
}

.maison-table thead th {
  font-family: var(--font-body);
  font-size: var(--eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-deepgold);
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--rule-gold-dark);
  white-space: nowrap;
}

.maison-table td {
  font-size: var(--small);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.maison-table tr:last-child td { border-bottom: none; }

.maison-table .num { text-align: right; font-variant-numeric: tabular-nums; }

/* ============================================================
   REFERENCES LIST
   ============================================================ */
.references-list {
  list-style: none;
  counter-reset: ref-counter;
}

.references-list li {
  counter-increment: ref-counter;
  display: flex;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: var(--small);
  line-height: 1.6;
}

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

.ref-number {
  font-family: var(--font-mono);
  font-size: var(--micro);
  font-weight: 500;
  color: var(--accent-deepgold);
  letter-spacing: 0.08em;
  white-space: nowrap;
  padding-top: 0.15em;
  min-width: 2.5rem;
}

.ref-body { flex: 1; }

.ref-doi {
  font-family: var(--font-mono);
  font-size: 0.75em;
  color: var(--text-muted);
  display: block;
  margin-top: 0.25rem;
}

.ref-link {
  color: var(--accent-deepgold);
  text-decoration: underline;
  text-underline-offset: 2px;
  margin-left: 0.5rem;
  font-size: 0.875em;
}

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

/* ============================================================
   FAQ ACCORDION
   ============================================================ */
.faq-section {
  margin-bottom: 3rem;
}

.faq-list {
  list-style: none;
  border-top: 2px solid var(--accent);
}

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

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.25rem 0;
  font-family: var(--font-heading);
  font-size: 1.1875rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  line-height: 1.3;
}

.faq-question:focus-visible {
  outline: 2.5px solid var(--accent-dark);
  outline-offset: 2px;
}

.faq-icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
  border: 1px solid var(--accent-dark);
  border-radius: 50%;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--accent-deepgold);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-icon::before { width: 10px; height: 1.5px; }

.faq-icon::after {
  width: 1.5px;
  height: 10px;
  transition: transform var(--transition), opacity var(--transition);
}

.faq-item.is-open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 400ms ease-out, padding var(--transition);
  padding: 0;
}

.faq-answer-inner {
  padding: 0 0 1.5rem;
  font-size: var(--body);
  line-height: 1.7;
  color: var(--text-muted);
}

.faq-item.is-open .faq-answer {
  max-height: 800px;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 36rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-family: var(--font-body);
  font-size: var(--eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-deepgold);
}

.form-input,
.form-select,
.form-textarea {
  font-family: var(--font-body);
  font-size: var(--body);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 0.375rem;
  padding: 0.75rem 1rem;
  width: 100%;
  transition: border-color var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-dark);
  box-shadow: 0 0 0 2px rgba(201, 167, 90, 0.15);
}

.form-textarea {
  min-height: 9rem;
  resize: vertical;
}

/* ============================================================
   ORNAMENT RAIL (desktop only)
   ============================================================ */
.ornament-rail {
  display: none;
}

@media (min-width: 1024px) {
  .ornament-rail {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding-top: 3rem;
    border-left: 1px solid var(--rule);
    padding-left: 2rem;
  }

  .rail-wordmark {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .rail-seal {
    width: 6px;
    height: 6px;
    background: var(--primary);
  }

  .rail-rule {
    display: block;
    width: 28px;
    height: 1px;
    background: var(--rule-gold-dark);
  }

  .rail-name {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 500;
    font-variant: small-caps;
    letter-spacing: 0.18em;
    color: var(--primary);
  }

  .rail-section-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    list-style: none;
  }

  .rail-section-numeral {
    font-family: var(--font-mono);
    font-size: var(--micro);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--neutral-300);
    transition: color var(--transition);
  }

  .rail-section-numeral.active {
    color: var(--accent-deepgold);
  }

  .rail-provenance {
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--rule);
  }

  .rail-provenance-label {
    font-family: var(--font-body);
    font-size: var(--micro);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
  }

  .rail-provenance-date {
    font-family: var(--font-heading);
    font-size: var(--small);
    font-style: italic;
    color: var(--text-muted);
  }

  .rail-provenance-count {
    font-family: var(--font-mono);
    font-size: var(--micro);
    color: var(--accent-deepgold);
    letter-spacing: 0.08em;
  }
}

/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-footer {
  background: var(--primary);
  margin-top: 6rem;
  position: relative;
}

.site-footer::after {
  content: '';
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
}

/* Upper footer band */
.footer-upper {
  padding: clamp(3rem, 6vw, 4rem) 0;
  border-bottom: 1px solid var(--rule-gold-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: repeat(4, 1fr); }
}

.footer-col-heading {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  font-variant: small-caps;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1rem;
  display: block;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--text-on-dark-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--accent); }

/* Lower footer band */
.footer-lower {
  background: var(--primary-900);
  padding: clamp(1.5rem, 3vw, 2rem) 0;
  display: flex;
  align-items: center;
}

.footer-lower .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-disclaimer {
  font-size: var(--small);
  color: var(--text-on-dark-muted);
  line-height: 1.55;
  max-width: 36rem;
}

.footer-crown-mark {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  flex-shrink: 0;
}

.footer-crown-mark .crown-seal {
  width: 6px;
  height: 6px;
  background: var(--accent);
  align-self: flex-end;
}

.footer-crown-mark .crown-rule {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--rule-gold);
}

.footer-crown-mark .crown-name {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 500;
  font-variant: small-caps;
  letter-spacing: 0.18em;
  color: var(--accent);
}

/* ============================================================
   404 PAGE
   ============================================================ */
.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  text-align: center;
}

.error-code {
  font-family: var(--font-heading);
  font-size: clamp(6rem, 15vw, 12rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--primary-50);
  line-height: 1;
  display: block;
}

.error-page h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}

.error-page p {
  color: var(--text-muted);
  max-width: 30rem;
  margin: 0 auto 2rem;
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.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-center { text-align: center; }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 0.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

@media (min-width: 640px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .card-grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* Fillet divider */
.fillet-divider {
  display: block;
  height: 1px;
  background: var(--rule-gold-dark);
  margin: 2.5rem 0;
}

.fillet-divider-heavy {
  height: 2px;
  background: var(--accent);
}

/* Tippy theme override — matches maison register */
.tippy-box[data-theme~='maison'] {
  background: var(--bg);
  border: 1px solid var(--rule-gold-dark);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--small);
  box-shadow: 0 4px 16px rgba(25, 42, 86, 0.12);
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  position: relative;
}

.tippy-box[data-theme~='maison'] .tippy-arrow { color: var(--rule-gold-dark); }

.tippy-box[data-theme~='maison']::after {
  content: '';
  position: absolute;
  top: 0.625rem;
  right: 0.625rem;
  width: 6px;
  height: 6px;
  background: var(--accent);
}