/* ============================================================
   Pharos - shared chrome and design tokens
   Source of truth for navigation, footer, palette, easing.
   Imported by every page. Page-specific styles stay inline.

   Path from each page:
     pharos/index.html                                   -> _admin/pharos.css
     pharos/<module>/index.html                          -> ../_admin/pharos.css
     pharos/<module>/<sub-page>/index.html               -> ../../_admin/pharos.css

   Convention: anything universal (palette, chrome, footer)
   lives here. Anything scene-specific or module-specific
   stays in the page's own <style> block.
============================================================ */

/* ---- design tokens ---- */
:root {
  /* Backgrounds - warm cream hierarchy */
  --bg:              #faf7f2;
  --bg-2:            #f3ece2;
  --bg-3:            #ede4d6;
  --surface:         #ffffff;
  --surface-2:       #fdf9f4;

  /* Borders */
  --border:          #e6d9c8;
  --border-2:        #d0c3b0;

  /* Text */
  --text:            #231a14;
  --text-dim:        #5a4a40;
  --text-muted:      #9a8878;

  /* Sunset accents */
  --coral:           #c84820;
  --coral-soft:      #e07848;
  --amber:           #a86010;
  --amber-soft:      #d09040;
  --lavender:        #6848a8;
  --lavender-soft:   #9878c8;
  --teal:            #2e7878;
  --teal-soft:       #5ea0a0;
  --rose:            #a84860;

  /* Layer accent palette (scene 7 / authoring layers) */
  --layer-1:         #a86010;
  --layer-2:         #2e7878;
  --layer-3:         #c84820;
  --layer-4:         #6848a8;
  --layer-5:         #a84860;

  /* Premium easing for entrance + hover transitions */
  --ease-premium:    cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---- reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---- progress bar (top edge of viewport) ---- */
#progress-bar {
  position: fixed; top: 0; left: 0;
  width: 0%; height: 2px;
  background: linear-gradient(90deg, var(--coral), var(--amber));
  z-index: 200;
}

/* ============================================================
   BODY SCENE TYPOGRAPHY - shared across module pages.
   Page-specific overrides are allowed inline (notice page does this
   for slightly larger section copy).
============================================================ */
.eyebrow {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 16px;
}
.scene-divider {
  width: 48px;
  height: 1px;
  background: var(--border-2);
  margin-bottom: 24px;
}
.section-title {
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-body {
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 460px;
}
.inline-chip {
  display: inline-block;
  padding: 1px 7px;
  background: rgba(46,120,120,0.1);
  border: 1px solid var(--teal-soft);
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--teal);
}

/* ============================================================
   TOP NAV - sticky, condenses on scroll
============================================================ */
.pharos-nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s var(--ease-premium),
              backdrop-filter 0.3s var(--ease-premium),
              padding 0.3s var(--ease-premium),
              border-bottom-color 0.3s var(--ease-premium);
  border-bottom: 1px solid transparent;
}
.pharos-nav.condensed {
  background: rgba(250, 247, 242, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 12px 40px;
  border-bottom-color: var(--border);
}
.pharos-nav-brand {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 32px;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
  transition: color 0.25s;
  line-height: 1;
}
.pharos-nav-brand:hover { color: var(--coral); }
.pharos-nav-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* nav links + Modules dropdown */
.pharos-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.pharos-nav-link {
  font-family: 'Inter', sans-serif;
  font-size: 26px;
  font-weight: 600;
  color: var(--text-dim);
  text-decoration: none;
  padding: 6px 4px;
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: color 0.25s var(--ease-premium);
  line-height: 1;
}
.pharos-nav-link:hover { color: var(--coral); }
.pharos-nav-link.active { color: var(--coral); }
.pharos-nav-dropdown { position: relative; }
.pharos-nav-caret {
  font-size: 14px;
  transition: transform 0.25s var(--ease-premium);
}
.pharos-nav-dropdown.open .pharos-nav-caret { transform: rotate(180deg); }
.pharos-nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  transform: translateY(-6px);
  min-width: 300px;
  max-width: calc(100vw - 32px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 12px 38px rgba(60,30,15,0.12), 0 2px 8px rgba(60,30,15,0.06);
  padding: 14px 6px 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--ease-premium), transform 0.25s var(--ease-premium);
  z-index: 110;
}
.pharos-nav-dropdown.open .pharos-nav-dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.pharos-nav-dropdown-section + .pharos-nav-dropdown-section {
  margin-top: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.pharos-nav-dropdown-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 4px 14px 6px;
}
.pharos-nav-dropdown-menu a,
.pharos-nav-dropdown-menu .pharos-nav-dropdown-disabled {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}
.pharos-nav-dropdown-menu a:hover {
  background: var(--bg-2);
  color: var(--coral);
}
.pharos-nav-dropdown-menu a.active {
  color: var(--coral);
  font-weight: 500;
}
.pharos-nav-dropdown-sublink {
  padding-left: 28px !important;
  font-size: 12px !important;
  color: var(--text-muted) !important;
}
.pharos-nav-dropdown-sublink::before {
  content: '\2192';
  margin-right: 8px;
  color: var(--lavender);
}
.pharos-nav-dropdown-sublink.active {
  color: var(--coral) !important;
}
.pharos-nav-dropdown-sublink.active::before { color: var(--coral); }
.pharos-nav-dropdown-disabled {
  color: var(--text-muted);
  cursor: default;
}
.tag-soon {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-2);
  padding: 2px 7px;
  border-radius: 3px;
}
@media (max-width: 720px) {
  .pharos-nav-meta { display: none; }
  .pharos-nav-links { gap: 12px; }
}

/* ============================================================
   SIDE TOC - sticky right-side scene index, sub-pages only
============================================================ */
.side-toc {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  right: 24px;
  z-index: 90;
  width: 180px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 0;
  opacity: 0;
  animation: toc-fade-in 0.6s var(--ease-premium) 0.4s forwards;
}
@keyframes toc-fade-in { to { opacity: 1; } }
@media (max-width: 1240px) { .side-toc { display: none; } }

.side-toc-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0 14px 8px 20px;
  border-bottom: 1px solid var(--border);
  margin: 0 8px 8px 0;
}
.side-toc-item {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  padding: 6px 14px 6px 20px;
  border-left: 2px solid transparent;
  transition: color 0.25s var(--ease-premium),
              border-left-color 0.25s var(--ease-premium),
              padding-left 0.25s var(--ease-premium);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 10px;
}
.side-toc-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-muted);
  opacity: 0.6;
  transition: color 0.25s, opacity 0.25s;
}
.side-toc-item:hover {
  color: var(--text-dim);
  padding-left: 22px;
}
.side-toc-item.active {
  color: var(--coral);
  border-left-color: var(--coral);
  font-weight: 500;
}
.side-toc-item.active .side-toc-num {
  color: var(--coral);
  opacity: 1;
}

/* ============================================================
   BACK-TO-TOP - circular button, sub-pages only
============================================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border-2);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.32s var(--ease-premium),
              transform 0.32s var(--ease-premium),
              background 0.25s, color 0.25s, border-color 0.25s;
  z-index: 90;
  box-shadow: 0 4px 16px rgba(60,30,15,0.08);
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--coral);
  color: var(--surface);
  border-color: var(--coral);
}
.back-to-top svg { width: 16px; height: 16px; }

/* ============================================================
   SOURCES LIST - cited references in module Sources scenes
============================================================ */
.sources-intro {
  font-size: 1rem;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 8px;
}
.sources-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 28px;
  list-style: none;
  padding: 0;
}
.source-item {
  display: flex;
  gap: 18px;
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.25s var(--ease-premium),
              box-shadow 0.25s var(--ease-premium);
}
.source-item:hover {
  border-color: var(--lavender-soft);
  box-shadow: 0 4px 18px rgba(104,72,168,0.08);
}
.source-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  min-width: 24px;
  letter-spacing: 0.04em;
  padding-top: 2px;
}
.source-info { flex: 1; min-width: 0; }
.source-publisher {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lavender);
  background: rgba(104,72,168,0.08);
  border: 1px solid rgba(104,72,168,0.2);
  padding: 2px 7px;
  border-radius: 3px;
  margin-bottom: 8px;
}
.source-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  display: block;
  margin-bottom: 4px;
  transition: color 0.2s;
  line-height: 1.4;
}
.source-title:hover { color: var(--coral); }
.source-context {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.55;
  margin-bottom: 6px;
}
.source-url {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-muted);
  word-break: break-all;
  display: block;
  letter-spacing: 0.01em;
}

/* ============================================================
   PHAROS FOOTER - shared across every page
============================================================ */
.pharos-footer {
  border-top: 1px solid var(--border);
  padding: 28px 40px;
  background: var(--bg-2);
}
.pharos-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: var(--text-muted);
}
.pharos-footer-brand {
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}
.pharos-footer-brand a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted var(--border-2);
  padding-bottom: 1px;
}
.pharos-footer-brand a:hover { color: var(--amber); border-bottom-color: var(--amber); }
.pharos-footer-meta { color: var(--text-muted); }
.pharos-footer-meta strong { color: var(--text-dim); font-weight: 500; }

/* ============================================================
   REDUCED MOTION - chrome animations off
============================================================ */
@media (prefers-reduced-motion: reduce) {
  .side-toc { opacity: 1; animation: none; }
  .pharos-nav,
  .pharos-nav.condensed,
  .pharos-nav-caret,
  .pharos-nav-dropdown-menu,
  .back-to-top {
    transition-duration: 0.01s !important;
  }
}