/* ═══════════════════════════════════════════════════════
   OSIREION — Main Stylesheet
   Palette: Deep Stone Black · Sand · Gold
═══════════════════════════════════════════════════════ */

:root {
  --c-bg:        #0c0a07;
  --c-bg-2:      #141009;
  --c-bg-3:      #1c1610;
  --c-surface:   #231d14;
  --c-border:    #3a3020;

  --c-sand:      #d4b888;
  --c-sand-light:#ecddc0;
  --c-gold:      #d4a040;
  --c-gold-light:#ecc060;
  --c-text:      #f5ece0;
  --c-text-dim:  #b8a888;

  --font-serif:  'Cormorant Garamond', 'Georgia', serif;
  --font-sans:   'Inter', system-ui, -apple-system, sans-serif;

  --radius:      4px;
  --transition:  0.3s ease;
  --max-w:       1180px;
}

/* ── RESET ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, model-viewer { display: block; }
a { color: inherit; text-decoration: none; }


/* ═══════════════════════════════════════════════════════
   LAYOUT UTILITIES
═══════════════════════════════════════════════════════ */

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1rem, 5vw, 2.5rem);
}

.section {
  padding: clamp(4rem, 10vw, 8rem) 0;
}

.section-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 0.75rem;
}

h1, h2, h3 { line-height: 1.15; }

h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  color: var(--c-sand-light);
  margin-bottom: 1.25rem;
}

h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--c-sand-light);
  margin-bottom: 0.5rem;
}

p { color: var(--c-text-dim); max-width: 65ch; }


/* ═══════════════════════════════════════════════════════
   HEADER / NAVIGATION
═══════════════════════════════════════════════════════ */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.1rem 0;
  transition: background var(--transition), border-bottom var(--transition);
}

.site-header.scrolled {
  background: rgba(12, 10, 7, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}

/* On non-home pages: always show solid header */
body:not(.tpl-home) .site-header {
  background: rgba(12, 10, 7, 0.97);
  border-bottom: 1px solid var(--c-border);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1rem, 5vw, 2.5rem);
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--c-sand-light);
  white-space: nowrap;
}

.logo-hieroglyph {
  font-size: 1.9rem;
  line-height: 1;
  color: var(--c-gold);
  -webkit-text-stroke: 0.6px var(--c-gold);
  text-shadow: 0 0 8px rgba(212,160,64,0.35);
}
.logo-text       { font-size: 1.2rem; }
.logo-text em    { font-style: italic; color: var(--c-text-dim); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}

.nav-item { position: relative; }

.nav-item > a {
  display: block;
  padding: 0.4rem 0.75rem;
  font-size: 0.83rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--c-text-dim);
  transition: color var(--transition);
  border-radius: var(--radius);
}

.nav-item > a:hover,
.nav-item.is-active > a { color: var(--c-sand-light); }

.nav-item.has-dropdown > a::after {
  content: ' ▾';
  font-size: 0.6em;
  opacity: 0.6;
}

/* Dropdown */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 0.25rem);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: rgba(20, 16, 9, 0.98);
  backdrop-filter: blur(16px);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 0.5rem 0;
  min-width: 210px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease 0.35s, transform 0.2s ease 0.35s; /* delay only on hide */
  z-index: 200;
}

.nav-item.has-dropdown:hover .nav-dropdown,
.nav-item.has-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
  transition-delay: 0s; /* show immediately */
}

.nav-dropdown a {
  display: block;
  padding: 0.45rem 1.25rem;
  font-size: 0.82rem;
  color: var(--c-text-dim);
  transition: color var(--transition), background var(--transition);
}

.nav-dropdown a:hover,
.nav-dropdown a.is-current {
  color: var(--c-sand-light);
  background: rgba(200, 151, 58, 0.08);
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--c-sand);
  transition: var(--transition);
}

.nav-toggle.is-open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }


/* ═══════════════════════════════════════════════════════
   HERO — HOME (model-viewer)
═══════════════════════════════════════════════════════ */

.hero {
  position: relative;
  width: 100%;
  height: 100dvh;
  min-height: 600px;
  overflow: hidden;
}

#hero-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Loading indicator */
#model-loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: var(--c-bg);
  transition: opacity 0.8s ease;
  pointer-events: none;
}

#model-loader p {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  max-width: none;
}

.loader-track {
  width: 160px;
  height: 1px;
  background: var(--c-border);
}

.loader-bar {
  height: 100%;
  width: 0%;
  background: var(--c-gold);
  transition: width 0.2s ease;
}

.model-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: clamp(2rem, 6vw, 5rem);
  background: linear-gradient(
    to top,
    rgba(12, 10, 7, 0.9) 0%,
    rgba(12, 10, 7, 0.3) 40%,
    transparent 65%
  );
  pointer-events: none;
}

.model-overlay-inner { pointer-events: all; max-width: 620px; }

.hero-pretitle {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 0.6rem;
  max-width: none;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 500;
  line-height: 1;
  color: var(--c-sand-light);
  margin-bottom: 0.8rem;
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-style: italic;
  color: var(--c-text-dim);
  margin-bottom: 2rem;
  max-width: none;
  line-height: 1.5;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.6rem;
  background: var(--c-gold);
  color: var(--c-bg);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}

.hero-cta:hover { background: var(--c-gold-light); transform: translateY(-1px); }

.hero-cta--ghost {
  background: transparent;
  color: var(--c-sand-light);
  border: 1px solid rgba(196, 168, 122, 0.4);
}

.hero-cta--ghost:hover {
  background: rgba(196, 168, 122, 0.1);
  border-color: var(--c-sand);
  transform: translateY(-1px);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  right: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: none;
  border: none;
  cursor: pointer;
  gap: 0.4rem;
  color: var(--c-text-dim);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: scroll-bounce 2s ease-in-out infinite;
}

.hero-scroll-hint svg { width: 16px; height: 16px; stroke: var(--c-gold); }

@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50%       { transform: translateY(5px); opacity: 1; }
}


/* ═══════════════════════════════════════════════════════
   INTRO SECTION (home)
═══════════════════════════════════════════════════════ */

.section--intro {
  background: var(--c-bg-2);
  border-top: 1px solid var(--c-border);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.intro-text h2 { margin-bottom: 1.5rem; }
.intro-text p  { margin-bottom: 1rem; }

.text-link {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--c-gold);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: color var(--transition);
}

.text-link:hover { color: var(--c-gold-light); }

.intro-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.fact-card {
  background: var(--c-surface);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.fact-number {
  font-family: var(--font-serif);
  font-size: 1.9rem;
  font-weight: 500;
  color: var(--c-gold);
  line-height: 1;
}

.fact-label { font-size: 0.78rem; color: var(--c-text-dim); line-height: 1.4; }


/* ═══════════════════════════════════════════════════════
   VISUAL BAND (quote + photo bg)
═══════════════════════════════════════════════════════ */

.visual-band {
  position: relative;
  background:
    linear-gradient(rgba(12, 10, 7, 0.72), rgba(12, 10, 7, 0.72)),
    var(--band-photo, none) center 40% / cover no-repeat;
  background-color: var(--c-bg-3);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.visual-band-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1rem, 5vw, 2.5rem);
}

blockquote {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-style: italic;
  color: var(--c-sand-light);
  line-height: 1.5;
  max-width: 780px;
  padding-left: 2rem;
  border-left: 2px solid var(--c-gold);
}

cite {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-style: normal;
  letter-spacing: 0.1em;
  color: var(--c-text-dim);
}


/* ═══════════════════════════════════════════════════════
   RECONSTRUCTION SECTION (home)
═══════════════════════════════════════════════════════ */

.section--rekon { background: var(--c-bg); }

.rekon-header { max-width: 640px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }

.rekon-header .section-intro {
  color: var(--c-text-dim);
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 60ch;
}

.rekon-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.rekon-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: border-color var(--transition), transform var(--transition);
}

.rekon-card:hover { border-color: var(--c-gold); transform: translateY(-2px); }
.rekon-card-icon  { width: 36px; height: 36px; margin-bottom: 1.25rem; color: var(--c-gold); }
.rekon-card-icon svg { width: 100%; height: 100%; }
.rekon-card p     { font-size: 0.9rem; line-height: 1.65; max-width: none; }

.rekon-cta-band {
  background: var(--c-bg-3);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.rekon-cta-band p { font-size: 0.95rem; max-width: 50ch; }

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--outline {
  border: 1px solid var(--c-gold);
  color: var(--c-gold);
  background: transparent;
}

.btn--outline:hover { background: var(--c-gold); color: var(--c-bg); }


/* ═══════════════════════════════════════════════════════
   RESEARCH SECTION (home)
═══════════════════════════════════════════════════════ */

.section--research {
  background: var(--c-bg-2);
  border-top: 1px solid var(--c-border);
}

.section--research h2 { margin-bottom: 1rem; }

.section-intro-wide {
  max-width: 72ch;
  margin-bottom: 3rem;
  font-size: 1rem;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.research-col h3 {
  font-size: 0.72rem;
  font-family: var(--font-sans);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--c-border);
}

.resource-list { list-style: none; display: flex; flex-direction: column; }

.resource-list li { border-bottom: 1px solid var(--c-border); }

.resource-list a {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.75rem 0;
  transition: color var(--transition);
}

.resource-list a:hover { color: var(--c-sand-light); }

.resource-list strong {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--c-sand);
  transition: color var(--transition);
}

.resource-list a:hover strong { color: var(--c-gold-light); }
.resource-list span           { font-size: 0.78rem; color: var(--c-text-dim); }


/* ═══════════════════════════════════════════════════════
   PAGE HERO (inner pages)
═══════════════════════════════════════════════════════ */

.page-hero {
  padding: clamp(5rem, 12vw, 9rem) 0 clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--c-border);
}

.page-hero--simple {
  background: var(--c-bg-2);
}

/* Tighter top padding on content directly after a page-hero */
.page-hero + .section,
.page-hero--simple + .section {
  padding-top: clamp(2rem, 4vw, 3.5rem);
}

.page-section-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 0.5rem;
  max-width: none;
}

.page-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 500;
  color: var(--c-sand-light);
  margin-bottom: 1rem;
  line-height: 1.1;
}

.page-summary {
  font-size: 1.1rem;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--c-text-dim);
  max-width: 60ch;
  line-height: 1.6;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--c-text-dim);
  margin-bottom: 1.25rem;
}

.breadcrumb a { color: var(--c-gold); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--c-gold-light); }
.breadcrumb-sep { opacity: 0.4; }


/* ═══════════════════════════════════════════════════════
   PROSE (rich text content)
═══════════════════════════════════════════════════════ */

.prose {
  max-width: 72ch;
  margin-bottom: 3rem;
}

.prose p { color: var(--c-text-dim); margin-bottom: 1rem; max-width: none; }

.prose h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.prose h3 { margin-top: 2rem; margin-bottom: 0.5rem; }

.prose a { color: var(--c-gold); border-bottom: 1px solid rgba(200, 151, 58, 0.3); }
.prose a:hover { color: var(--c-gold-light); }

.prose ul, .prose ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  color: var(--c-text-dim);
}

.prose li { margin-bottom: 0.4rem; }

.prose blockquote {
  margin: 2rem 0;
  font-size: 1.1rem;
}


/* ═══════════════════════════════════════════════════════
   CHILD PAGES GRID (basic-page)
═══════════════════════════════════════════════════════ */

.child-pages { margin-top: 3rem; }
.child-pages h2 { margin-bottom: 1.5rem; }

.child-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.child-card {
  position: relative;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: border-color var(--transition), transform var(--transition);
}

.child-card:hover { border-color: var(--c-gold); transform: translateY(-2px); }
.child-card h3    { font-size: 1.1rem; margin-bottom: 0; }
.child-card p     { font-size: 0.88rem; line-height: 1.55; max-width: none; }

.child-card-arrow {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  color: var(--c-gold);
  font-size: 1rem;
  transition: transform var(--transition);
}

.child-card:hover .child-card-arrow { transform: translate(2px, -2px); }


/* ═══════════════════════════════════════════════════════
   RESOURCE / LINK LIST (resource-page)
═══════════════════════════════════════════════════════ */

.resource-layout { max-width: 860px; }

.link-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 3rem;
}

.link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--c-border);
  transition: color var(--transition);
}

.link-card:first-child { border-top: 1px solid var(--c-border); }

.link-card:hover { color: var(--c-sand-light); }

.link-card-body { display: flex; flex-direction: column; gap: 0.15rem; }

.link-card-body strong {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--c-sand);
  transition: color var(--transition);
}

.link-card:hover .link-card-body strong { color: var(--c-gold-light); }

.link-card-body span { font-size: 0.82rem; color: var(--c-text-dim); }

.link-card-arrow {
  color: var(--c-gold);
  font-size: 1rem;
  flex-shrink: 0;
  transition: transform var(--transition);
}

.link-card:hover .link-card-arrow { transform: translate(2px, -2px); }

/* Sibling nav */
.sibling-nav {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--c-border);
}

.sibling-nav-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  margin-bottom: 0.75rem;
}

.sibling-nav-links { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.sibling-nav-links a {
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  border: 1px solid var(--c-border);
  border-radius: 100px;
  color: var(--c-text-dim);
  transition: all var(--transition);
}

.sibling-nav-links a:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
}

.sibling-nav-links__current {
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  border: 1px solid var(--c-gold);
  border-radius: 100px;
  color: var(--c-gold);
  cursor: default;
}


/* ═══════════════════════════════════════════════════════
   BIMX & SMART PLAYER
═══════════════════════════════════════════════════════ */

/* BIMx open-in-new-tab button */
.btn-bimx {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  background: var(--c-gold);
  color: #0c0a07;
  font-family: var(--font-sans);
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-decoration: none;
  border-radius: var(--radius);
  transition: background .2s, color .2s;
  margin: 1rem 0;
}
.btn-bimx:hover {
  background: var(--c-sand-light);
  color: #0c0a07;
}

.bimx-open-hint {
  color: var(--c-sand);
  font-size: .9rem;
  margin-bottom: .5rem;
}

/* Animation video */
.animation-video-wrap {
  margin: 2rem 0 3rem;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--c-border);
}
.animation-video {
  width: 100%;
  display: block;
  max-height: 75vh;
}

/* TechSmith Smart Player */
.smart-player-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1832 / 967;
  background: #000;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.smart-player-iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}


/* ═══════════════════════════════════════════════════════
   EDIT LINK (admin hint)
═══════════════════════════════════════════════════════ */

.edit-link {
  margin-top: 3rem;
  font-size: 0.78rem;
  max-width: none;
}

.edit-link a { color: var(--c-text-dim); }
.edit-link a:hover { color: var(--c-gold); }


/* ═══════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════ */

.site-footer {
  background: var(--c-bg);
  border-top: 1px solid var(--c-border);
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--c-sand);
}

.footer-copy { font-size: 0.8rem; color: var(--c-text-dim); max-width: 50ch; text-align: center; }
.footer-copy a { color: var(--c-gold); transition: color var(--transition); }
.footer-copy a:hover { color: var(--c-gold-light); }

.footer-legal {
  font-size: 0.8rem;
  color: var(--c-text-dim);
  text-align: center;
}
.footer-legal summary {
  cursor: pointer;
  color: var(--c-text-dim);
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition);
}
.footer-legal summary::-webkit-details-marker { display: none; }
.footer-legal summary::after {
  content: '▾';
  font-size: 0.65em;
  transition: transform 0.2s ease;
}
.footer-legal[open] summary::after { transform: rotate(-180deg); }
.footer-legal summary:hover { color: var(--c-sand-light); }
.footer-legal-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 0.6rem;
}
.footer-legal-links a {
  color: var(--c-gold);
  font-size: 0.8rem;
  transition: color var(--transition);
}
.footer-legal-links a:hover { color: var(--c-gold-light); }


/* ═══════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════ */

@media (max-width: 900px) {
  .intro-grid          { grid-template-columns: 1fr; }
  .rekon-grid          { grid-template-columns: 1fr 1fr; }
  .research-grid       { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 640px) {
  .site-nav {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(12, 10, 7, 0.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    font-size: 1.3rem;
    z-index: 150;
  }

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

  .nav-item.has-dropdown > a::after { display: none; }
  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: all;
    background: none;
    border: none;
    padding: 0.25rem 0 0;
    display: none;
  }

  .nav-toggle { display: flex; z-index: 200; }

  .intro-facts  { grid-template-columns: 1fr 1fr; }
  .rekon-grid   { grid-template-columns: 1fr; }
  .research-grid { grid-template-columns: 1fr; }
  .rekon-cta-band { flex-direction: column; text-align: center; }
  .model-overlay  { padding: 1.5rem; }
  .hero-actions   { flex-direction: column; }
}