/* =========================================================================
   harness.css — research-notes subpage (reuses tokens from style.css)
   ========================================================================= */

.back-link {
  font-family: var(--mono); font-size: 0.74rem; color: var(--muted);
  display: inline-flex; align-items: center; gap: 0.4rem; transition: color 0.2s;
}
.back-link:hover { color: var(--accent-deep); }

/* hero */
.sub-hero { padding: clamp(5rem, 14vh, 8rem) 0 2rem; }
.sub-hero .eyebrow { margin-bottom: 1.4rem; }
.sub-hero h1 {
  font-family: var(--display); font-weight: 600; letter-spacing: -0.03em;
  font-size: clamp(2.4rem, 7vw, 4.6rem); line-height: 0.98; color: var(--ink); margin-bottom: 1.3rem;
}
.sub-hero h1 .ln2 { color: var(--ink-2); }
.sub-hero .lede { max-width: 60ch; }
.status-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.6rem; }
.status-row span {
  font-family: var(--mono); font-size: 0.72rem; color: var(--ink-2);
  border: 1px solid var(--hair); border-radius: 999px; padding: 0.35rem 0.8rem; background: var(--paper-2);
}
.status-row span.live-tag { color: var(--accent-deep); border-color: var(--accent-line); display: inline-flex; align-items: center; gap: 0.4rem; }
.status-row .pulse-d { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 2.2s ease-out infinite; }

/* prose */
.prose { max-width: 70ch; }
.prose p { color: var(--ink-2); font-size: 1.06rem; margin-bottom: 1.1rem; }
.prose p:last-child { margin-bottom: 0; }

/* symptom list */
.symptoms { display: grid; gap: 0.7rem; margin: 1.6rem 0; }
.symptoms li {
  list-style: none; display: flex; gap: 0.8rem; align-items: baseline;
  font-size: 1.02rem; color: var(--ink-2);
}
.symptoms li::before { content: "✕"; color: var(--muted); font-family: var(--mono); font-size: 0.85rem; flex-shrink: 0; }

/* callout — the 80-word story */
.callout {
  border: 1px solid var(--hair); border-radius: 14px; background: var(--paper-2);
  padding: clamp(1.4rem, 4vw, 2.2rem); margin: 2.4rem 0;
}
.callout . co-tag { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-ink); display: block; margin-bottom: 1rem; }
.callout-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin: 1.2rem 0; }
@media (max-width: 720px) { .callout-grid { grid-template-columns: 1fr; } }
.co-panel { border: 1px solid var(--hair); border-radius: 10px; padding: 1.1rem; background: var(--paper); }
.co-panel.bad { border-left: 2px solid var(--muted); }
.co-panel.good { border-left: 2px solid var(--accent); }
.co-panel h4 { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.03em; margin-bottom: 0.7rem; color: var(--ink-2); }
.co-panel .mono-block {
  font-family: var(--mono); font-size: 0.8rem; line-height: 1.55; color: var(--ink);
  white-space: pre-wrap; word-break: break-word;
}
.co-panel.good .mono-block { color: var(--accent-deep); }
.co-out { font-size: 0.9rem; color: var(--muted); margin-top: 0.8rem; font-family: var(--mono); line-height: 1.5; }
.callout blockquote {
  border: none; margin: 1.2rem 0 0; padding: 0;
  font-family: var(--display); font-weight: 500; font-size: clamp(1.1rem, 2.6vw, 1.4rem);
  color: var(--ink); line-height: 1.3; letter-spacing: -0.01em;
}
.callout blockquote .q { color: var(--accent-deep); }

/* three-layer stack */
.layer-stack { display: grid; gap: 0; margin: 2rem 0; border: 1px solid var(--hair); border-radius: 12px; overflow: hidden; }
.layer-row { display: grid; grid-template-columns: auto 1fr; gap: 1rem; padding: 1.3rem 1.5rem; background: var(--paper-2); border-bottom: 1px solid var(--hair); align-items: start; }
.layer-row:last-child { border-bottom: none; }
.layer-row.harness { background: var(--accent-soft); }
.layer-row .lr-n { font-family: var(--mono); font-size: 0.72rem; color: var(--accent-ink); padding-top: 0.25rem; }
.layer-row h4 { font-family: var(--display); font-weight: 600; font-size: 1.2rem; margin-bottom: 0.2rem; color: var(--ink); }
.layer-row .lr-do { color: var(--ink-2); font-size: 0.98rem; }
.layer-row .lr-solve { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); margin-top: 0.35rem; }
.layer-row.harness .lr-solve { color: var(--accent-deep); }

/* 6 component grid */
.comp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 2rem 0; }
@media (max-width: 820px) { .comp-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .comp-grid { grid-template-columns: 1fr; } }
.comp-card {
  border: 1px solid var(--hair); border-radius: 12px; padding: 1.3rem; background: var(--paper-2);
  position: relative; overflow: hidden; transition: transform 0.26s var(--ease), border-color 0.26s, box-shadow 0.26s;
}
.comp-card::after { content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 100%; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease); }
.comp-card:hover { transform: translateY(-3px); border-color: var(--accent-line); box-shadow: 0 12px 32px oklch(0.5 0.05 200 / 0.10); }
.comp-card:hover::after { transform: scaleX(1); }
.comp-card .cc-n { font-family: var(--mono); font-size: 0.72rem; color: var(--accent-ink); }
.comp-card h4 { font-family: var(--display); font-weight: 600; font-size: 1.12rem; margin: 0.4rem 0 0.5rem; color: var(--ink); }
.comp-card p { color: var(--muted); font-size: 0.92rem; line-height: 1.5; }

/* self-healing loop diagram */
.heal {
  border: 1px solid var(--hair); border-radius: 12px; background: var(--paper-2); margin: 2rem 0; overflow: hidden;
}
.heal .heal-hud { padding: 0.7rem 1rem; border-bottom: 1px solid var(--hair); font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.05em; color: var(--accent-ink); }
.heal-body {
  background: linear-gradient(var(--grid-fine) 1px, transparent 1px), linear-gradient(90deg, var(--grid-fine) 1px, transparent 1px), var(--paper-2);
  background-size: 24px 24px, 24px 24px, 100% 100%;
}
.heal-body svg { width: 100%; height: auto; display: block; }
.heal-body text { font-family: var(--mono); fill: var(--ink-2); }
.heal-node rect { fill: var(--paper); stroke: var(--ink-2); stroke-width: 1.3; }
.heal-node.gate rect { stroke: var(--accent); fill: var(--accent-soft); }
.heal-node .hn-t { font-family: var(--display); fill: var(--ink); }
.heal-flow { fill: none; stroke: var(--hair); stroke-width: 1.6; color: var(--muted); }
.heal-flow.block { stroke: var(--accent); color: var(--accent); stroke-dasharray: 5 6; animation: dashMove 0.9s linear infinite; }
.heal-pass { fill: var(--accent-deep); font-weight: 600; }

/* principle blocks */
.principle { border-left: 2px solid var(--accent); padding: 0.3rem 0 0.3rem 1.3rem; margin: 1.6rem 0; }
.principle h4 { font-family: var(--display); font-weight: 600; font-size: 1.15rem; color: var(--ink); margin-bottom: 0.4rem; }
.principle p { color: var(--ink-2); font-size: 1.0rem; }

/* adoption path */
.path { display: grid; gap: 1rem; margin: 2rem 0; }
.path-week { border: 1px solid var(--hair); border-radius: 12px; padding: 1.3rem 1.5rem; background: var(--paper-2); }
.path-week .pw-n { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--accent-ink); }
.path-week h4 { font-family: var(--display); font-weight: 600; font-size: 1.15rem; margin: 0.3rem 0 0.6rem; color: var(--ink); }
.path-week ul { margin: 0; padding-left: 1.1rem; }
.path-week li { color: var(--ink-2); font-size: 0.98rem; margin-bottom: 0.3rem; }

/* closing */
.closing-quote {
  font-family: var(--display); font-weight: 600; letter-spacing: -0.02em;
  font-size: clamp(1.6rem, 4.5vw, 2.6rem); line-height: 1.15; color: var(--ink); max-width: 22ch;
}
.closing-quote .q { color: var(--accent-deep); }
.closing-sub { max-width: 60ch; margin-top: 1.4rem; }

.ref-note { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); margin-top: 1rem; }
.ref-note a { color: var(--accent-deep); }