/*
 * NEXONOMY · CATEGORY PILLAR PAGE
 * Long-form, reading-optimized layout for "What is a decision system of record?"
 * Owns the category definition. Reuses tokens and the shared system.
 * Import after product.css.
 */


/* ─── PILLAR HERO (question-led) ─────────────────────────────────────────── */

.pillar-hero {
  max-width: 880px;
  margin-inline: auto;
  padding: 160px var(--section-px) 56px;
}
.pillar-hero__q {
  font-family: var(--font-display);
  font-size: 60px;
  line-height: 1.04;
  letter-spacing: -2.5px;
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
}
.pillar-hero__q em { font-style: italic; color: var(--color-accent); }
.pillar-hero__answer {
  margin-top: 24px;
  font-size: 19px;
  line-height: 30px;
  letter-spacing: -0.3px;
  color: var(--color-text-secondary);
  max-width: 720px;
}
.pillar-hero__answer b { color: var(--color-text-primary); font-weight: var(--weight-medium); }


/* ─── ON THIS PAGE (static anchor list) ──────────────────────────────────── */

.onpage {
  max-width: 880px;
  margin: 0 auto 40px;
  padding: 18px var(--section-px);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}
.onpage a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}
.onpage a:hover { color: var(--color-accent); }


/* ─── LONG-FORM READING COLUMN ───────────────────────────────────────────── */

.prose {
  max-width: 760px;
  margin-inline: auto;
  padding-inline: var(--section-px);
}
.prose-section { padding-block: 40px; }
.prose-section + .prose-section { border-top: 1px solid var(--color-border); }

.prose-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  color: var(--color-accent);
}
.prose h2 {
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -1px;
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
  margin: 8px 0 18px;
}
.prose h2 em { font-style: italic; color: var(--color-accent); }
.prose h3 {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: -0.4px;
  color: var(--color-text-primary);
  font-weight: var(--weight-medium);
  margin: 26px 0 10px;
}
.prose p {
  font-size: 16px;
  line-height: 27px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}
.prose p b { color: var(--color-text-primary); font-weight: var(--weight-medium); }
.prose strong { color: var(--color-text-primary); font-weight: var(--weight-medium); }

/* Display pull-quote */
.keyline {
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.32;
  letter-spacing: -0.5px;
  color: var(--color-text-primary);
  margin: 28px 0;
  padding-left: 22px;
  border-left: 2px solid var(--color-accent);
}
.keyline em { font-style: italic; color: var(--color-accent); }


/* ─── DEFINITION BLOCK ───────────────────────────────────────────────────── */

.definition {
  background: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-left: 2px solid var(--color-accent);
  border-radius: 10px;
  padding: 28px 30px;
  margin: 8px 0 4px;
}
.definition__term {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.5px;
  color: var(--color-text-primary);
  font-weight: var(--weight-medium);
}
.definition__pos {
  font-family: var(--font-mono);
  font-size: 11px;
  font-style: italic;
  color: var(--color-text-muted);
  margin-left: 10px;
}
.definition__body {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 30px;
  letter-spacing: -0.2px;
  color: var(--color-text-secondary);
  margin: 14px 0 16px;
}
.definition__body b { color: var(--color-text-primary); font-weight: var(--weight-medium); }
.definition__not {
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
}
.definition__not b { color: var(--color-accent); font-weight: var(--weight-normal); }


/* ─── VS ADJACENT CATEGORIES (the differentiation grid) ──────────────────── */

.vs-section {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: 8px var(--section-px) 0;
}
.vs {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-surface-0);
}
.vs__row {
  display: grid;
  grid-template-columns: 0.9fr 1.3fr 1.3fr;
  border-bottom: 1px solid var(--color-border);
}
.vs__row:last-child { border-bottom: none; }
.vs__row--head {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
}
.vs__cell { padding: 16px 20px; }
.vs__cell + .vs__cell { border-left: 1px solid var(--color-border); }
.vs__row--head .vs__cell {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.vs__cat { font-size: 14px; font-weight: var(--weight-medium); color: var(--color-text-primary); }
.vs__does { font-size: 13.5px; line-height: 20px; color: var(--color-text-secondary); }
.vs__stops { font-size: 13.5px; line-height: 20px; color: var(--color-text-secondary); }
.vs__stops b { color: var(--color-signal); font-weight: var(--weight-medium); }

.vs__row--ours {
  background: rgba(140,101,247,0.06);
  border-top: 1px solid rgba(140,101,247,0.30);
}
.vs__row--ours .vs__cat { color: var(--color-accent); }
.vs__row--ours .vs__stops b { color: var(--color-affirm); }


/* ─── ADJACENT-VISUAL WIDE BREAKOUT (Record / Graph reuse) ───────────────── */

.pillar-figure {
  max-width: var(--container-max);
  margin: 24px auto 0;
  padding-inline: var(--section-px);
}
.pillar-figure__cap {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.pillar-figure__cap .icon { color: var(--color-accent); }


/* ─── USE-CASE LINKS (breadth = system of record) ────────────────────────── */

.uc-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 8px; }
.uc-link {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-surface-0);
  text-decoration: none;
  transition: border-color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}
.uc-link:hover { border-color: rgba(140,101,247,0.4); transform: translateY(-1px); }
.uc-link__name {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 15px; font-weight: var(--weight-medium); color: var(--color-text-primary);
}
.uc-link__name .icon { color: var(--color-accent); width: 16px; height: 16px; }
.uc-link__desc { font-size: 13px; line-height: 19px; color: var(--color-text-secondary); margin-top: 6px; }


/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .pillar-hero { padding-top: 120px; }
  .pillar-hero__q { font-size: 40px; letter-spacing: -1.5px; }
  .prose h2 { font-size: 27px; }
  .vs__row, .vs__row--head { grid-template-columns: 1fr; }
  .vs__cell + .vs__cell { border-left: none; border-top: 1px solid var(--color-border); }
  .vs__row--head { display: none; }
  .uc-links { grid-template-columns: 1fr; }
}