/* Spatial Index · Blog Layout
   Shared across all /blog/[scene].html pages */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,300;1,400&family=Geist+Mono:wght@300;400;500&display=swap');

:root {
  --bg:           #0d1a04;
  --lime:         #8aba1a;
  --lime-dim:     rgba(138,186,26,0.15);
  --lime-glow:    rgba(138,186,26,0.4);
  --text:         #8aba1a;
  --text-dim:     #4a7a1a;
  --border:       rgba(138,186,26,0.18);
  --border-faint: rgba(138,186,26,0.08);
  --font-serif:   "Cormorant Garamond", serif;
  --font-mono:    "Geist Mono", monospace;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-serif);
  overflow-x: hidden;
  cursor: crosshair;
}

/* scanline overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 1;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.06) 2px, rgba(0,0,0,0.06) 4px
  );
  pointer-events: none;
}

/* ── CURSOR ── */
.cursor {
  position: fixed;
  width: 4px; height: 4px;
  background: var(--lime);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  box-shadow: 0 0 8px var(--lime-glow);
}
.cursor-ring {
  position: fixed;
  width: 24px; height: 24px;
  border: 1px solid rgba(138,186,26,0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
}

/* ── TOPBAR ── */
.si-topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(to bottom, rgba(13,26,4,0.98), rgba(13,26,4,0.85));
  backdrop-filter: blur(12px);
}

.si-back {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.si-back:hover { color: var(--lime); }

.si-topbar-center {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.si-topbar-right {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--lime);
}

/* ── PROJECT HEADER ── */
.si-project-header {
  padding: 100px 56px 52px;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 200px;
  align-items: end;
  gap: 48px;
  position: relative;
  z-index: 10;
}

.project-eyebrow {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.project-title {
  font-family: var(--font-serif);
  font-size: clamp(42px, 6vw, 64px);
  font-weight: 300;
  font-style: italic;
  line-height: 1.0;
  color: var(--lime);
  letter-spacing: -0.02em;
  text-shadow: 0 0 80px var(--lime-glow);
  margin-bottom: 14px;
}

.project-subtitle {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.project-lede {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 300;
  font-style: italic;
  line-height: 1.65;
  color: rgba(138,186,26,0.72);
  max-width: 580px;
}

.project-header-meta {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  line-height: 2.4;
}

.tag-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.ptag {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 3px 9px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 1px;
}

/* ── BODY LAYOUT ── */
.si-body {
  display: grid;
  grid-template-columns: 220px 1fr;
  position: relative;
  z-index: 10;
}

/* ── LEFT TOC ── */
.si-toc {
  border-right: 1px solid var(--border);
  padding: 48px 0 80px;
  position: sticky;
  top: 53px;
  height: calc(100vh - 53px);
  overflow-y: auto;
  scrollbar-width: none;
}
.si-toc::-webkit-scrollbar { display: none; }

.toc-label {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(138,186,26,0.28);
  padding: 0 28px;
  margin-bottom: 20px;
}

.toc-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 28px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  border-left: 2px solid transparent;
  text-decoration: none;
}
.toc-item:hover {
  background: rgba(138,186,26,0.04);
  border-left-color: rgba(138,186,26,0.3);
}
.toc-item.active {
  border-left-color: var(--lime);
  background: rgba(138,186,26,0.05);
}

.toc-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  border: 1px solid var(--text-dim);
  flex-shrink: 0;
  transition: background 0.15s, border-color 0.15s;
}
.toc-item.active .toc-dot { background: var(--lime); border-color: var(--lime); }

.toc-text {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.15s;
}
.toc-item.active .toc-text,
.toc-item:hover .toc-text { color: var(--lime); }

.toc-divider {
  height: 1px;
  background: var(--border-faint);
  margin: 20px 28px;
}

.toc-demo-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--lime);
  text-decoration: none;
  border-left: 2px solid rgba(138,186,26,0.35);
  transition: border-color 0.2s, background 0.2s;
}
.toc-demo-link:hover {
  border-left-color: var(--lime);
  background: rgba(138,186,26,0.05);
}

/* ── CONTENT AREA ── */
.si-content {
  padding: 56px 64px 96px;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.content-section {
  margin-bottom: 80px;
  scroll-margin-top: 80px;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(138,186,26,0.32);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-faint);
}

.section-heading {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 300;
  font-style: italic;
  color: var(--lime);
  margin-bottom: 20px;
  line-height: 1.1;
}

.body-p {
  font-family: var(--font-serif);
  font-size: 16.5px;
  line-height: 1.82;
  color: rgba(138,186,26,0.62);
  margin-bottom: 18px;
}
.body-p:last-child { margin-bottom: 0; }

.callout {
  border-left: 1px solid rgba(138,186,26,0.4);
  padding: 14px 22px;
  margin: 28px 0;
  background: rgba(138,186,26,0.025);
}
.callout-text {
  font-family: var(--font-serif);
  font-size: 19px;
  font-style: italic;
  line-height: 1.6;
  color: rgba(138,186,26,0.82);
}

/* ── MEDIA BLOCKS ── */
.media-grid {
  display: grid;
  gap: 10px;
  margin: 28px 0;
}
.media-grid.cols-1 { grid-template-columns: 1fr; }
.media-grid.cols-2 { grid-template-columns: 1fr 1fr; }
.media-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

.media-item {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #040a01;
}
.media-item img,
.media-item video {
  width: 100%;
  display: block;
  transition: transform 0.5s ease;
  filter: saturate(0.9);
}
.media-item:hover img,
.media-item:hover video {
  transform: scale(1.02);
  filter: saturate(1);
}
.media-caption {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(138,186,26,0.3);
  padding: 7px 10px;
  border-top: 1px solid var(--border-faint);
}

/* ── STACK GRID ── */
.stack-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(138,186,26,0.1);
  margin: 20px 0;
}
.stack-cell { background: var(--bg); padding: 20px; }
.stack-cell-label {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(138,186,26,0.38);
  margin-bottom: 7px;
}
.stack-cell-val {
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.6;
  color: rgba(138,186,26,0.62);
}

/* ── BUILD LOG ── */
.build-log { margin-top: 8px; }

.log-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 28px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-faint);
  align-items: start;
}
.log-item:last-child { border-bottom: none; }

.log-date {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: rgba(138,186,26,0.32);
  padding-top: 2px;
}
.log-title {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 6px;
}
.log-text {
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(138,186,26,0.52);
}

/* ── PAGE FOOTER ── */
.si-page-footer {
  position: relative;
  z-index: 10;
  border-top: 1px solid var(--border);
  padding: 28px 56px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  background: rgba(138,186,26,0.015);
}

.footer-coords {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  color: rgba(138,186,26,0.28);
}

.footer-scene-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.footer-nav-link {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-nav-link:hover { color: var(--lime); }
.footer-nav-link.disabled { opacity: 0.25; pointer-events: none; }

.footer-sep {
  font-family: var(--font-mono);
  font-size: 8px;
  color: var(--border);
}

.footer-index-link {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  color: rgba(138,186,26,0.28);
  text-decoration: none;
  text-align: right;
  transition: color 0.2s;
}
.footer-index-link:hover { color: var(--lime); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .si-body { grid-template-columns: 1fr; }
  .si-toc { display: none; }
  .si-content { padding: 36px 28px 64px; }
  .si-project-header { grid-template-columns: 1fr; padding: 88px 28px 36px; }
  .project-header-meta { text-align: left; }
  .stack-grid { grid-template-columns: 1fr; }
  .media-grid.cols-2,
  .media-grid.cols-3 { grid-template-columns: 1fr; }
  .log-item { grid-template-columns: 80px 1fr; gap: 16px; }
  .si-page-footer { grid-template-columns: 1fr; gap: 16px; text-align: center; padding: 28px 24px; }
  .footer-index-link { text-align: center; }
  .cursor, .cursor-ring { display: none; }
}