/* ═══════════════════════════════════════════════════════════════════════
   Flow Engine Methodology — page-local styles
   Accents: gold (B89C5A), cyan (7EE7FF — ride), red (C97064 — fade)
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  --fe-bone: #F5F5F2;
  --fe-gold: #B89C5A;
  --fe-gray: #8B919A;
  --fe-red:  #C97064;
  --fe-cyan: #7EE7FF;
}

/* Hero brief block */
.fe-brief {
  margin-top: 32px;
  padding: 32px 36px;
  border: 1px solid var(--hairline-strong);
  background: rgba(236, 230, 217, 0.02);
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: start;
}
.fe-brief-tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--bone-faint);
  line-height: 1.7;
}
.fe-brief-body {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(18px, 1.8vw, 24px);
  line-height: 1.4;
  color: var(--bone);
}
.fe-brief-body em { font-style: italic; }
@media (max-width: 720px) {
  .fe-brief { grid-template-columns: 1fr; padding: 24px; gap: 16px; }
}

/* Figure container */
.fe-fig {
  margin: 56px 0 12px;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 36px 0 24px;
  background: rgba(0, 0, 0, 0.2);
}
.fe-fig svg {
  display: block;
  width: 100%;
  height: auto;
}
.fe-fig-cap {
  margin-top: 16px;
  padding: 0 36px;
  display: flex; justify-content: space-between; gap: 16px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--bone-faint);
}
@media (max-width: 720px) {
  .fe-fig-cap { padding: 0 16px; flex-direction: column; }
}

/* Regime cards (§ C) */
.fe-regimes {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline-strong);
  border-bottom: 1px solid var(--hairline-strong);
}
.fe-regime {
  padding: 24px 18px;
  display: flex; flex-direction: column; gap: 10px;
  border-left: 1px solid var(--hairline);
  position: relative;
}
.fe-regime:first-child { border-left: none; }
.fe-regime-num {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.32em;
  color: var(--bone-faint);
}
.fe-regime-name {
  font-family: var(--serif);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(18px, 1.7vw, 22px);
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--bone);
}
.fe-regime-meta {
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.55;
  color: var(--bone-muted);
}
.fe-regime[data-state="diversity"] .fe-regime-num   { color: var(--fe-gray); }
.fe-regime[data-state="compression"] .fe-regime-num { color: var(--fe-bone); }
.fe-regime[data-state="crowding"] .fe-regime-num    { color: var(--fe-gold); }
.fe-regime[data-state="fragility"] .fe-regime-num   { color: var(--fe-red); }
.fe-regime[data-state="release"] .fe-regime-num     { color: var(--fe-cyan); }
.fe-regime[data-state="fragility"] { background: linear-gradient(180deg, rgba(201,112,100,0.06), transparent 70%); }
@media (max-width: 880px) {
  .fe-regimes { grid-template-columns: 1fr 1fr; }
  .fe-regime { border-left: none; border-top: 1px solid var(--hairline); }
  .fe-regime:nth-child(-n+2) { border-top: none; }
}
@media (max-width: 540px) {
  .fe-regimes { grid-template-columns: 1fr; }
  .fe-regime:nth-child(-n+2) { border-top: 1px solid var(--hairline); }
  .fe-regime:first-child { border-top: none; }
}

/* Modes A / B */
.fe-modes {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--hairline-strong);
}
.fe-mode {
  padding: 40px;
  display: flex; flex-direction: column; gap: 16px;
  position: relative;
}
.fe-mode + .fe-mode { border-left: 1px solid var(--hairline-strong); }
.fe-mode-tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.32em;
  color: var(--bone-faint);
}
.fe-mode-name {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(24px, 2.4vw, 32px);
  letter-spacing: -0.018em;
  line-height: 1.1;
  color: var(--bone);
}
.fe-mode--ride .fe-mode-name em { color: var(--fe-cyan); font-style: normal; }
.fe-mode--fade .fe-mode-name em { color: var(--fe-red);  font-style: normal; }
.fe-mode-body {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.65;
  color: var(--bone-muted);
  max-width: 44ch;
}
.fe-mode-list {
  margin: 4px 0 0;
  padding-left: 18px;
  list-style: none;
}
.fe-mode-list li {
  position: relative;
  padding: 4px 0;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--bone-muted);
  line-height: 1.55;
}
.fe-mode-list li::before {
  content: "·";
  position: absolute;
  left: -14px;
  color: var(--bone-faint);
}
.fe-mode-rule {
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--hairline);
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--bone-muted);
  line-height: 1.5;
  max-width: 42ch;
}
.fe-mode-rule em { color: var(--bone); }
@media (max-width: 720px) {
  .fe-modes { grid-template-columns: 1fr; }
  .fe-mode + .fe-mode { border-left: none; border-top: 1px solid var(--hairline-strong); }
  .fe-mode { padding: 28px; }
}

/* Global architecture pipeline (§ J) */
.fe-pipeline {
  margin-top: 32px;
  padding: 40px 0;
  border-top: 1px solid var(--hairline-strong);
  border-bottom: 1px solid var(--hairline-strong);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.fe-pipeline-step {
  font-family: var(--mono);
  font-size: clamp(12.5px, 1.3vw, 15px);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bone);
  text-align: center;
}
.fe-pipeline-arrow {
  color: var(--bone-faint);
  font-family: var(--mono);
  font-size: 14px;
}
.fe-pipeline-out {
  margin-top: 8px;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(22px, 2.4vw, 32px);
  letter-spacing: -0.018em;
  color: var(--fe-gold);
}

/* Bullet list with index numbers (§ L) */
.fe-list {
  margin-top: 24px;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
}
.fe-list li {
  padding: 14px 18px 14px 32px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--bone-muted);
  border-bottom: 1px solid var(--hairline);
  line-height: 1.5;
  position: relative;
}
.fe-list li::before {
  content: attr(data-i);
  position: absolute;
  left: 0; top: 14px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--bone-faint);
}
@media (max-width: 720px) { .fe-list { grid-template-columns: 1fr; } }

/* Layer card (§ E–§ H) */
.fe-layer-card {
  margin-top: 40px;
  border: 1px solid var(--hairline-strong);
  padding: 36px 40px;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 36px;
  position: relative;
  background: rgba(236, 230, 217, 0.02);
}
.fe-layer-rail {
  display: flex; flex-direction: column; gap: 8px;
  border-right: 1px solid var(--hairline);
  padding-right: 24px;
}
.fe-layer-rail .num-big {
  font-family: var(--serif);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(48px, 5vw, 72px);
  line-height: 0.9;
  color: var(--bone);
}
.fe-layer-rail .num-small {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--bone-faint);
}
.fe-layer-rail .tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.28em;
  color: var(--fe-gold);
  margin-top: 12px;
}
.fe-layer-main h3 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(26px, 2.6vw, 36px);
  letter-spacing: -0.018em;
  line-height: 1.15;
  color: var(--bone);
  margin: 0 0 12px;
}
.fe-layer-main h3 em { font-style: italic; }
.fe-layer-body {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  color: var(--bone-muted);
}
.fe-layer-body p { margin: 0 0 12px; }
.fe-layer-body em { font-style: italic; color: var(--bone); }
.fe-layer-question {
  margin-top: 18px;
  padding: 14px 16px;
  border-left: 2px solid var(--fe-gold);
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--bone);
  line-height: 1.4;
}
.fe-layer-question em { color: var(--fe-gold); font-style: italic; }
.fe-metrics {
  margin-top: 18px;
  display: flex; flex-wrap: wrap; gap: 6px;
}
.fe-metric {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bone);
  padding: 6px 10px;
  border: 1px solid var(--hairline-strong);
  background: rgba(236, 230, 217, 0.03);
}
@media (max-width: 720px) {
  .fe-layer-card { grid-template-columns: 1fr; padding: 28px; gap: 20px; }
  .fe-layer-rail { flex-direction: row; align-items: baseline; border-right: none; border-bottom: 1px solid var(--hairline); padding: 0 0 16px; gap: 16px; }
  .fe-layer-rail .tag { margin-top: 0; margin-left: auto; }
  .fe-layer-rail .num-big { font-size: 48px; }
}

/* "What it is / is not" two-column comparison */
.fe-isnot {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--hairline-strong);
}
.fe-isnot-col {
  padding: 32px 36px;
}
.fe-isnot-col + .fe-isnot-col { border-left: 1px solid var(--hairline-strong); }
.fe-isnot-col h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--bone-faint);
  margin: 0 0 18px;
}
.fe-isnot-col[data-kind="not"] h4 { color: var(--fe-red); }
.fe-isnot-col[data-kind="is"] h4 { color: var(--fe-cyan); }
.fe-isnot-col ul {
  margin: 0; padding: 0; list-style: none;
  display: flex; flex-direction: column; gap: 10px;
}
.fe-isnot-col li {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.35;
  color: var(--bone);
}
.fe-isnot-col[data-kind="not"] li {
  color: var(--bone-muted);
  text-decoration: line-through;
  text-decoration-color: rgba(201,112,100,0.5);
  text-decoration-thickness: 1px;
}
.fe-isnot-col[data-kind="is"] li em { font-style: italic; color: var(--fe-cyan); }
@media (max-width: 720px) {
  .fe-isnot { grid-template-columns: 1fr; }
  .fe-isnot-col + .fe-isnot-col { border-left: none; border-top: 1px solid var(--hairline-strong); }
}