/* =====================================================
   Elimentary Master Reference — main editorial styles
   ===================================================== */

:root {
  --bg: #FCFCFC;
  --bg-elev: #F4F5F7;
  --bg-tint: #ECFDF5;
  --ink: #0F172A;
  --ink-soft: #334155;
  --ink-mute: #64748B;
  --rule: #E5E7EB;
  --rule-soft: #EEF0F3;
  --primary: #10B981;
  --primary-soft: #D1FAE5;
  --warn: #D97706;
  --critical: #DC2626;
  --maxw: 920px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.page { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

/* Cover */
.cover {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 60px 32px 48px;
  border-bottom: 1px solid var(--rule);
  position: relative;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-elev) 100%);
}
.cover-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
.stamp {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-mute);
  border: 1px solid var(--rule);
  padding: 6px 10px;
  border-radius: 4px;
  background: white;
}
.brand {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.brand .dot { color: var(--primary); }
.cover-title {
  font-family: 'Fraunces', serif;
  font-weight: 300;
  font-size: clamp(54px, 9vw, 112px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 60px 0 28px;
}
.cover-title em { font-style: italic; font-weight: 400; color: var(--primary); }
.cover-sub {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-style: italic;
  font-size: 22px;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 0 48px;
  line-height: 1.4;
}
.cover-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
}
.meta-item .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-mute);
  margin-bottom: 6px;
}
.meta-item .val { font-size: 14px; color: var(--ink); }

/* Hover hint badge */
.hover-hint {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 6px 10px;
  border-radius: 4px;
  margin-top: 20px;
}
.hover-hint::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* TOC */
.toc {
  padding: 80px 32px;
  border-bottom: 1px solid var(--rule);
  max-width: var(--maxw);
  margin: 0 auto;
}
.toc h2 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-style: italic;
  font-size: 32px;
  margin: 0 0 32px;
  color: var(--ink-soft);
}
.toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; }
.toc li {
  counter-increment: toc;
  border-top: 1px solid var(--rule-soft);
  padding: 16px 0;
  display: flex;
  align-items: baseline;
  gap: 20px;
}
.toc li:last-child { border-bottom: 1px solid var(--rule-soft); }
.toc li::before {
  content: counter(toc, decimal-leading-zero);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-mute);
  flex-shrink: 0;
  width: 32px;
}
.toc a {
  color: var(--ink);
  text-decoration: none;
  font-family: 'Fraunces', serif;
  font-size: 22px;
  font-weight: 400;
  flex: 1;
  transition: color 0.2s;
}
.toc a:hover { color: var(--primary); }

/* Chapters */
section.chapter { padding: 100px 0 60px; border-bottom: 1px solid var(--rule); }
.chapter-head { margin-bottom: 60px; }
.chapter-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--primary);
  margin-bottom: 16px;
}
.chapter h1 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 0 16px;
}
.chapter h1 em { font-style: italic; color: var(--primary); }
.chapter-lede {
  font-family: 'Fraunces', serif;
  font-weight: 300;
  font-style: italic;
  font-size: 22px;
  line-height: 1.45;
  color: var(--ink-soft);
  max-width: 660px;
  margin: 0;
}

h2 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: 30px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 56px 0 20px;
}
h3 { font-family: 'Fraunces', serif; font-weight: 500; font-size: 22px; line-height: 1.3; margin: 36px 0 12px; }
h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin: 28px 0 10px;
}
p { margin: 0 0 16px; max-width: 70ch; }
p.lead { font-size: 19px; line-height: 1.55; color: var(--ink-soft); }
strong { font-weight: 600; color: var(--ink); }
em { font-style: italic; }
a { color: var(--primary); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }

ul, ol { padding-left: 22px; margin: 0 0 20px; max-width: 70ch; }
li { margin-bottom: 8px; line-height: 1.6; }
ul li::marker { color: var(--primary); }

table { width: 100%; border-collapse: collapse; margin: 24px 0 28px; font-size: 14px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
  font-weight: 500;
  border-bottom: 1px solid var(--rule);
  background: var(--bg-elev);
}
tr:hover td { background: rgba(16,185,129,0.025); }

.callout {
  background: var(--bg-tint);
  border-left: 3px solid var(--primary);
  padding: 20px 24px;
  margin: 24px 0;
  border-radius: 4px;
}
.callout .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--primary);
  margin-bottom: 10px;
  font-weight: 500;
}
.callout p:last-child { margin-bottom: 0; }
.callout.warn { background: #FEF3C7; border-left-color: var(--warn); }
.callout.warn .label { color: var(--warn); }
.callout.crit { background: #FEE2E2; border-left-color: var(--critical); }
.callout.crit .label { color: var(--critical); }
.callout.neutral { background: var(--bg-elev); border-left-color: var(--ink-mute); }
.callout.neutral .label { color: var(--ink-mute); }

.source-block {
  background: white;
  padding: 24px 28px;
  margin: 20px 0;
  border-radius: 6px;
  border: 1px solid var(--rule);
}
.source-block h3 { margin-top: 0; }
.source-tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--primary);
  border: 1px solid var(--primary);
  padding: 3px 8px;
  border-radius: 3px;
  margin-bottom: 14px;
  background: var(--primary-soft);
}

/* Module card with hover affordance */
.module-card {
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 24px;
  margin: 16px 0;
  background: white;
  position: relative;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.module-card[data-wf] { cursor: help; }
.module-card[data-wf]:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(16,185,129,0.08);
}
.module-card .module-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 8px;
}
.module-card h3 { margin-top: 0; }

.submod {
  padding: 12px 0;
  border-bottom: 1px solid var(--rule-soft);
  border-radius: 3px;
  margin: 0 -8px;
  padding-left: 8px;
  padding-right: 8px;
  transition: background-color 0.15s ease;
}
.submod:last-child { border-bottom: none; }
.submod[data-wf] { cursor: help; }
.submod[data-wf]:hover { background-color: var(--bg-tint); }
.submod[data-wf]:hover .submod-name { color: var(--primary); }
.submod-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
}
.submod-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-mute);
  min-width: 32px;
}
.submod-name { font-weight: 600; font-size: 14px; transition: color 0.15s ease; }
.submod p { margin: 0; font-size: 13.5px; color: var(--ink-soft); }

/* Status pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 4px;
}
.pill.built { background: #D1FAE5; color: #047857; }
.pill.scaffold { background: #FEF3C7; color: #B45309; }
.pill.missing { background: #FEE2E2; color: #B91C1C; }
.pill.partial { background: #DBEAFE; color: #1D4ED8; }
.pill.archived { background: var(--bg-elev); color: var(--ink-mute); }

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.86em;
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--primary);
}

.q {
  border-left: 2px solid var(--rule);
  padding: 12px 0 12px 18px;
  margin: 14px 0;
}
.q.blocker { border-left-color: var(--critical); }
.q.important { border-left-color: var(--warn); }
.q.nice { border-left-color: var(--primary); }
.q .q-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 2px 6px;
  border-radius: 3px;
  margin-right: 8px;
  font-weight: 600;
}
.q.blocker .q-tag { background: #FEE2E2; color: #B91C1C; }
.q.important .q-tag { background: #FEF3C7; color: #B45309; }
.q.nice .q-tag { background: var(--primary-soft); color: #047857; }

footer {
  text-align: center;
  padding: 60px 32px;
  color: var(--ink-mute);
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
}

/* =====================================================
   Sticky left-side mini TOC
   ===================================================== */
.sticky-toc {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  left: 28px;
  width: 220px;
  max-height: 70vh;
  overflow-y: auto;
  z-index: 50;
  background: rgba(252,252,252,0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 14px 12px;
  font-family: 'Inter', sans-serif;
  box-shadow: 0 4px 16px rgba(15,23,42,0.04);
  transition: opacity 0.3s ease, transform 0.3s ease;
  /* Hidden until user scrolls past the cover */
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateX(-12px);
}
.sticky-toc.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(-50%) translateX(0);
}
.sticky-toc-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-mute);
  margin-bottom: 10px;
  padding-left: 8px;
}
.sticky-toc ol {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: stoc;
}
.sticky-toc li {
  counter-increment: stoc;
  margin: 0;
  padding: 0;
}
.sticky-toc a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 8px;
  font-size: 12px;
  color: var(--ink-mute);
  text-decoration: none;
  border-radius: 4px;
  border-left: 2px solid transparent;
  margin-left: -2px;
  line-height: 1.35;
  transition: all 0.15s ease;
}
.sticky-toc a::before {
  content: counter(stoc, decimal-leading-zero);
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-mute);
  opacity: 0.5;
  flex-shrink: 0;
}
.sticky-toc a:hover {
  color: var(--ink);
  background: var(--bg-elev);
}
.sticky-toc a.active {
  color: var(--primary);
  border-left-color: var(--primary);
  background: var(--primary-soft);
  font-weight: 500;
}
.sticky-toc a.active::before { color: var(--primary); opacity: 1; }

/* Hide sticky TOC on narrow screens */
@media (max-width: 1240px) {
  .sticky-toc { display: none; }
}

/* Reference cards */
.ref-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin: 16px 0 24px;
}
.ref-card {
  background: white;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 14px 16px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.ref-card:hover { border-color: var(--primary); box-shadow: 0 4px 12px rgba(16,185,129,0.06); }
.ref-card .ref-name {
  font-weight: 600;
  font-size: 14px;
  color: var(--ink);
  margin: 0 0 4px;
}
.ref-card .ref-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 6px;
}
.ref-card .ref-note {
  font-size: 12px;
  color: var(--ink-mute);
  line-height: 1.5;
  margin: 0;
}
.ref-card .ref-link {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  margin-top: 8px;
  word-break: break-all;
}

/* Visual reference card — with logo */
.ref-card.visual {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}
.ref-card.visual .ref-thumb {
  height: 88px;
  background: var(--bg-elev);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--rule-soft);
  position: relative;
}
.ref-card.visual .ref-thumb img {
  max-width: 56px;
  max-height: 56px;
  object-fit: contain;
}
.ref-card.visual .ref-body {
  padding: 12px 14px;
}

/* Person grid — wider columns than .ref-grid since cards have photo + text side-by-side */
.person-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 16px;
  margin: 16px 0 24px;
}

/* Person card — circle photo */
.person-card {
  background: white;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 16px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.person-card:hover { border-color: var(--primary); box-shadow: 0 4px 12px rgba(16,185,129,0.06); }
.person-card .person-photo {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  flex-shrink: 0;
  border: 2px solid var(--bg-elev);
}
.person-card .person-info { flex: 1; min-width: 0; }
.person-card .person-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 4px;
}
.person-card .person-name {
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
  margin: 0 0 4px;
}
.person-card .person-note {
  font-size: 12.5px;
  color: var(--ink-mute);
  line-height: 1.5;
  margin: 0;
}

/* Media preview tile (for prototype screenshots + videos) */
.media-tile {
  background: white;
  border: 1px solid var(--rule);
  border-radius: 8px;
  overflow: hidden;
  cursor: zoom-in;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  position: relative;
  display: block;
}
.media-tile:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(15,23,42,0.08); }
.media-tile img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
  object-position: top center;
}
.media-tile .media-meta {
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.media-tile .media-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}
.media-tile .media-type {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 3px 7px;
  border-radius: 3px;
}
.media-tile.video::after {
  content: '▶';
  position: absolute;
  top: 75px;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: rgba(15,23,42,0.85);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  padding-left: 4px;
  pointer-events: none;
  transition: transform 0.18s ease;
}
.media-tile.video:hover::after { transform: translate(-50%, -50%) scale(1.08); }
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 16px 0 24px;
}

/* ===== Lightbox ===== */
.lb-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.92);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
  padding: 32px;
}
.lb-overlay.show { opacity: 1; pointer-events: auto; }
.lb-content {
  max-width: 92vw;
  max-height: 88vh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.lb-content img,
.lb-content video {
  max-width: 92vw;
  max-height: 80vh;
  border-radius: 6px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  background: black;
}
.lb-toolbar {
  position: absolute;
  top: -44px;
  right: 0;
  display: flex;
  gap: 8px;
}
.lb-btn {
  background: rgba(255,255,255,0.1);
  color: white;
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 12px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.lb-btn:hover { background: rgba(255,255,255,0.18); border-color: rgba(255,255,255,0.35); }
.lb-caption {
  color: rgba(255,255,255,0.7);
  font-size: 12px;
  margin-top: 12px;
  text-align: center;
  font-family: 'Inter', sans-serif;
}