/* ═══════════════════════════════════════════════════
   DENSETSU — ILX ARTICLE STYLESHEET
   Extends main.css. Do not use standalone.
═══════════════════════════════════════════════════ */

/* ── ARTICLE HERO ─────────────────────────────── */
.art-hero {
  display: grid;
  grid-template-columns: var(--col-label) 1fr;
  border-bottom: 2px solid var(--ink);
  background: var(--ink);
}
.art-hero-label {
  border-right: 2px solid rgba(255,255,255,0.08);
  padding: 40px 32px;
  display: flex; flex-direction: column; justify-content: space-between;
}
.art-kicker {
  font-size: 9px; letter-spacing: 0.22em;
  color: rgba(255,255,255,0.25); text-transform: uppercase;
}
.art-back {
  font-size: 10px; font-family: var(--mono);
  color: rgba(255,255,255,0.3); letter-spacing: 0.06em;
  transition: color 0.15s;
}
.art-back:hover { color: #f7f4ee; }
.art-hero-content { padding: 56px 48px; }
.art-meta {
  display: flex; align-items: center; gap: 8px; margin-bottom: 28px;
}
.art-meta-item {
  font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--red); font-family: var(--mono);
}
.art-meta-item.dim { color: rgba(255,255,255,0.22); }
.art-meta-sep { color: rgba(255,255,255,0.12); font-size: 12px; }
.art-title {
  font-size: clamp(28px, 3.5vw, 52px);
  font-weight: 400; line-height: 1.08; letter-spacing: -0.03em;
  color: #f7f4ee; margin-bottom: 24px; max-width: 720px;
}
.art-lede {
  font-size: 15px; color: rgba(255,255,255,0.45);
  line-height: 1.65; max-width: 580px;
}

/* ── ARTICLE SECTIONS ─────────────────────────── */
.art-section {
  display: grid;
  grid-template-columns: var(--col-label) 1fr;
  border-bottom: 0.5px solid var(--ink-12);
}
.art-section:last-of-type { border-bottom: 2px solid var(--ink); }
.art-section-label {
  border-right: 2px solid var(--ink);
  padding: 44px 32px;
  display: flex; align-items: flex-start;
}
.art-section-label span {
  font-size: 9px; letter-spacing: 0.22em;
  color: var(--ink-22); text-transform: uppercase;
}
.art-section-body {
  padding: 44px 48px; max-width: 820px;
}

/* ── PROSE ────────────────────────────────────── */
.prose h2 {
  font-size: 21px; font-weight: 500; letter-spacing: -0.02em;
  line-height: 1.2; margin-bottom: 18px;
}
.prose p {
  font-size: 14px; color: var(--ink-45);
  line-height: 1.8; margin-bottom: 16px;
}
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--ink); font-weight: 600; }

/* ── CODE BLOCK ───────────────────────────────── */
.code-block {
  background: var(--ink);
  padding: 24px 28px; margin: 24px 0;
  font-family: var(--mono); font-size: 12px;
  line-height: 1.75;
  border-left: 2px solid var(--red);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
  display: block;
}
.code-comment { color: rgba(255,255,255,0.18); }
.code-key     { color: #f7f4ee; }
.code-val     { color: #f0a898; }   /* soft red */
.code-str     { color: #86efac; }   /* soft green */

/* ── SPEECH ACTS / OPERATIONS LIST ───────────── */
.acts-list {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2px; background: var(--ink-08); margin: 24px 0;
}
.act-row {
  background: var(--bg); padding: 14px 16px;
  display: flex; gap: 14px; align-items: flex-start;
  transition: background 0.15s;
}
.act-row:hover { background: var(--soft); }
.act-kw {
  font-family: var(--mono); font-size: 11px;
  color: var(--red); font-weight: 500;
  min-width: 76px; flex-shrink: 0; margin-top: 1px;
}
.act-def {
  font-size: 12px; color: var(--ink-42); line-height: 1.6;
}

/* ── LIFECYCLE FLOW ───────────────────────────── */
.lifecycle {
  display: flex; margin: 24px 0;
  background: var(--soft); border: 0.5px solid var(--ink-12);
}
.lifecycle-step {
  flex: 1; padding: 18px 14px; text-align: center;
  border-right: 0.5px solid var(--ink-12);
}
.lifecycle-step:last-child { border-right: none; }
.lifecycle-step-name {
  display: block; font-family: var(--mono);
  font-size: 11px; color: var(--red); font-weight: 500;
  margin-bottom: 6px;
}
.lifecycle-step-desc {
  font-size: 10px; color: var(--ink-28); line-height: 1.55;
}

/* ── RATING & DECAY SECTION ───────────────────── */
.decay-section {
  display: grid;
  grid-template-columns: var(--col-label) 1fr;
  border-bottom: 0.5px solid var(--ink-12);
  background: var(--soft);
}
.decay-label {
  border-right: 2px solid var(--ink);
  padding: 44px 32px;
  display: flex; flex-direction: column;
  align-items: flex-start; gap: 10px;
}
.decay-label-tag {
  font-size: 9px; letter-spacing: 0.22em;
  color: var(--ink-22); text-transform: uppercase;
}
.decay-label-badge {
  font-size: 8px; font-family: var(--mono);
  color: var(--red); border: 0.5px solid var(--red);
  padding: 3px 7px; letter-spacing: 0.08em;
}
.decay-body {
  padding: 44px 48px; max-width: 820px;
}
.decay-body.prose h2 { margin-bottom: 18px; }

/* Pheromone visualisation */
.pheromone-viz {
  background: var(--ink);
  padding: 24px 28px; margin: 28px 0;
  font-family: var(--mono); font-size: 11px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}
.phero-label {
  font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.2); margin-bottom: 18px;
  display: flex; align-items: center; gap: 10px;
}
.phero-label::after {
  content: ''; flex: 1; height: 0.5px; background: rgba(255,255,255,0.07);
}
.phero-row {
  display: flex; align-items: center; gap: 12px; margin-bottom: 12px;
}
.phero-row:last-child { margin-bottom: 0; }
.phero-route {
  color: rgba(255,255,255,0.28); min-width: 260px; flex-shrink: 0;
}
.phero-bar {
  flex: 1; height: 3px; background: rgba(255,255,255,0.07);
  border-radius: 2px; overflow: hidden;
}
.phero-fill { height: 100%; border-radius: 2px; }
.phero-score { font-size: 10px; min-width: 30px; }
.phero-status {
  font-size: 9px; color: rgba(255,255,255,0.2); min-width: 130px; text-align: right;
}

/* ── KEY CONCEPTS GRID ────────────────────────── */
.concepts-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2px; background: var(--ink-08); margin-top: 0;
}
.concept-cell {
  background: var(--bg); padding: 24px;
  transition: background 0.15s;
}
.concept-cell:hover { background: var(--soft); }
.concept-name {
  font-size: 12px; font-weight: 600;
  margin-bottom: 8px; letter-spacing: 0.01em;
}
.concept-def {
  font-size: 12px; color: var(--ink-42); line-height: 1.75;
}

/* ── USE CASES ────────────────────────────────── */
.use-cases {
  display: flex; flex-direction: column;
  gap: 2px; background: var(--ink-08);
}
.use-case {
  background: var(--bg); padding: 24px 28px;
  display: grid; grid-template-columns: 180px 1fr; gap: 32px;
}
.use-case-label {
  font-size: 12px; font-weight: 500; line-height: 1.4;
  padding-right: 16px; border-right: 0.5px solid var(--ink-08);
  color: var(--ink);
}
.use-case-text {
  font-size: 13px; color: var(--ink-45); line-height: 1.75;
}

/* ── BOTTLENECK SECTION (dark pivot) ─────────── */
.bottleneck-section {
  display: grid;
  grid-template-columns: var(--col-label) 1fr;
  border-bottom: 0.5px solid rgba(255,255,255,0.06);
  background: var(--ink);
}
.bottleneck-label {
  border-right: 2px solid rgba(255,255,255,0.08);
  padding: 44px 32px;
  display: flex; flex-direction: column;
  align-items: flex-start; gap: 10px;
}
.bottleneck-label-tag {
  font-size: 9px; letter-spacing: 0.22em;
  color: rgba(255,255,255,0.22); text-transform: uppercase;
}
.bottleneck-label-stat {
  font-family: var(--mono); font-size: 32px; font-weight: 400;
  color: var(--red); line-height: 1;
}
.bottleneck-label-stat-desc {
  font-size: 9px; color: rgba(255,255,255,0.2);
  font-family: var(--mono); line-height: 1.5;
}
.bottleneck-body {
  padding: 44px 48px; max-width: 820px;
}
.bottleneck-body .prose h2 { color: #f7f4ee; }
.bottleneck-body.prose h2 { color: #f7f4ee; }
.bottleneck-body .prose p,
.bottleneck-body.prose p { color: rgba(255,255,255,0.42); }
.bottleneck-body .prose strong,
.bottleneck-body.prose strong { color: rgba(255,255,255,0.75); }
.breakdown-list {
  margin: 20px 0;
  display: flex; flex-direction: column; gap: 1px;
  background: rgba(255,255,255,0.05);
}
.breakdown-item {
  background: rgba(255,255,255,0.02);
  padding: 12px 16px;
  display: flex; gap: 14px; align-items: baseline;
  font-size: 13px; color: rgba(255,255,255,0.38); line-height: 1.5;
}
.breakdown-item::before {
  content: attr(data-n);
  font-family: var(--mono); font-size: 9px;
  color: var(--red); flex-shrink: 0; min-width: 16px;
  opacity: 0.7; margin-top: 2px;
}

/* ── SCORING FORMULA ─────────────────────────── */
.formula-block {
  background: rgba(255,255,255,0.04);
  border: 0.5px solid rgba(255,255,255,0.1);
  border-left: 2px solid var(--red);
  padding: 20px 24px; margin: 24px 0;
  font-family: var(--mono); font-size: 13px;
  color: rgba(255,255,255,0.7); line-height: 1.6;
}
.formula-label {
  font-size: 8px; letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.2); margin-bottom: 10px;
}

/* ── FAST / DELIBERATE PATH SPLIT ────────────── */
.path-split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2px; background: var(--ink-08); margin: 24px 0;
}
.path-cell {
  padding: 20px 22px; background: var(--bg);
}
.path-cell-tag {
  font-size: 8px; letter-spacing: 0.18em; text-transform: uppercase;
  margin-bottom: 8px; font-family: var(--mono);
}
.path-cell-tag.fast { color: #16a34a; }
.path-cell-tag.deliberate { color: #b45309; }
.path-cell-title {
  font-size: 13px; font-weight: 500;
  margin-bottom: 8px; color: var(--ink);
}
.path-cell-desc {
  font-size: 12px; color: var(--ink-42); line-height: 1.65;
}

/* ── LEAN WORKERS ────────────────────────────── */
.lean-section {
  display: grid;
  grid-template-columns: var(--col-label) 1fr;
  border-bottom: 0.5px solid rgba(255,255,255,0.06);
  background: #161614;
}
.lean-label {
  border-right: 2px solid rgba(255,255,255,0.08);
  padding: 44px 32px;
  display: flex; flex-direction: column; gap: 10px;
}
.lean-label-tag {
  font-size: 9px; letter-spacing: 0.22em;
  color: rgba(255,255,255,0.22); text-transform: uppercase;
}
.lean-label-badge {
  font-size: 8px; font-family: var(--mono);
  color: rgba(255,255,255,0.2); border: 0.5px solid rgba(255,255,255,0.1);
  padding: 3px 7px; letter-spacing: 0.08em; width: fit-content;
}
.lean-body {
  padding: 44px 48px; max-width: 820px;
}
.lean-body.prose h2 { color: #f7f4ee; }
.lean-body.prose p  { color: rgba(255,255,255,0.42); }
.lean-body.prose strong { color: rgba(255,255,255,0.75); }

/* ── PERSONAL CONTEXT (4-cell) ───────────────── */
.context-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2px; background: var(--ink-08);
}
.context-cell {
  background: var(--bg); padding: 26px;
  transition: background 0.15s;
}
.context-cell:hover { background: var(--soft); }
.context-cell-name {
  font-size: 12px; font-weight: 600;
  margin-bottom: 2px;
}
.context-cell-sub {
  font-size: 9px; font-family: var(--mono);
  color: var(--red); letter-spacing: 0.06em; margin-bottom: 10px;
}
.context-cell-def {
  font-size: 12px; color: var(--ink-42); line-height: 1.75;
}

/* ── TIMELINE (end to end) ───────────────────── */
.timeline {
  display: flex; flex-direction: column;
  background: var(--ink-08); gap: 2px;
}
.timeline-step {
  background: var(--bg);
  display: grid; grid-template-columns: 56px 1fr;
}
.timeline-n {
  background: var(--soft);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 24px;
  font-family: var(--mono); font-size: 18px;
  color: var(--ink-22); font-weight: 400; flex-shrink: 0;
}
.timeline-content { padding: 22px 24px 22px 20px; }
.timeline-title {
  font-size: 13px; font-weight: 600;
  margin-bottom: 7px; line-height: 1.3;
}
.timeline-desc {
  font-size: 12px; color: var(--ink-42); line-height: 1.75;
}
.timeline-desc code {
  font-family: var(--mono); font-size: 11px;
  color: var(--red); background: rgba(192,57,43,0.07);
  padding: 1px 5px;
}

/* ── BOTTOM CTA ───────────────────────────────── */
.art-cta {
  background: var(--ink);
  padding: 64px 48px;
  display: grid; grid-template-columns: var(--col-label) 1fr;
  border-bottom: 2px solid var(--red);
}
.art-cta-spacer { border-right: 2px solid rgba(255,255,255,0.06); }
.art-cta-content { padding-left: 48px; }
.art-cta-pre {
  font-size: 9px; letter-spacing: 0.22em;
  color: rgba(255,255,255,0.22); text-transform: uppercase;
  margin-bottom: 16px; display: flex; align-items: center; gap: 10px;
}
.art-cta-pre::before {
  content: ''; display: inline-block;
  width: 24px; height: 2px; background: var(--red);
}
.art-cta-title {
  font-size: clamp(24px, 2.8vw, 38px);
  font-weight: 400; color: #f7f4ee;
  letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 28px;
}
.art-cta-links { display: flex; gap: 12px; }
.art-cta-link {
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase;
  padding: 12px 22px; transition: 0.15s; display: inline-block;
}
.art-cta-link.primary {
  background: var(--red); color: #f7f4ee;
}
.art-cta-link.primary:hover { background: #a93224; }
.art-cta-link.secondary {
  color: rgba(255,255,255,0.38);
  border: 0.5px solid rgba(255,255,255,0.15);
}
.art-cta-link.secondary:hover {
  color: #f7f4ee; border-color: rgba(255,255,255,0.35);
}

/* ── RESPONSIVE ───────────────────────────────── */
@media (max-width: 1024px) {
  .art-hero-content   { padding: 44px 32px; }
  .art-section-body   { padding: 40px 32px; }
  .decay-body         { padding: 40px 32px; }
  .art-cta            { padding: 52px 32px; }
  .art-cta-content    { padding-left: 32px; }
  .phero-route        { min-width: 200px; }
}

@media (max-width: 768px) {
  .art-hero,
  .art-section,
  .decay-section,
  .bottleneck-section,
  .lean-section,
  .art-cta             { grid-template-columns: 1fr; }
  .art-hero-label      { display: none; }
  .art-hero-content    { padding: 36px 24px; }
  .art-section-label,
  .decay-label,
  .bottleneck-label,
  .lean-label,
  .art-cta-spacer      { display: none; }
  .art-section-body    { padding: 32px 24px; max-width: 100%; }
  .decay-body,
  .bottleneck-body,
  .lean-body           { padding: 32px 24px; }
  .acts-list           { grid-template-columns: 1fr; }
  .concepts-grid,
  .context-grid        { grid-template-columns: 1fr; }
  .path-split          { grid-template-columns: 1fr; }
  .use-case            { grid-template-columns: 1fr; gap: 12px; }
  .use-case-label      {
    border-right: none; padding-right: 0;
    border-bottom: 0.5px solid var(--ink-08); padding-bottom: 10px;
  }
  .art-cta-content     { padding: 36px 24px; }
  .phero-route         { min-width: 0; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .phero-status        { display: none; }
  .timeline-step       { grid-template-columns: 44px 1fr; }
}

@media (max-width: 480px) {
  .art-hero-content    { padding: 28px 20px; }
  .art-section-body,
  .decay-body,
  .bottleneck-body,
  .lean-body           { padding: 28px 20px; }
  .art-cta-content     { padding: 28px 20px; }
  .lifecycle           { flex-direction: column; }
  .lifecycle-step      {
    border-right: none;
    border-bottom: 0.5px solid var(--ink-12);
  }
  .lifecycle-step:last-child { border-bottom: none; }
  .art-cta-links       { flex-direction: column; }
  .pheromone-viz       { padding: 18px 16px; }
  .phero-bar           { display: none; }
  .timeline-step       { grid-template-columns: 36px 1fr; }
  .timeline-n          { font-size: 14px; padding-top: 20px; }
  .prose p             { font-size: 15px; line-height: 1.75; }
  .prose h2            { font-size: 19px; }
  .formula-block       { white-space: pre-wrap; word-break: break-word; font-size: 12px; }
  .code-block          { padding: 18px 16px; font-size: 11px; }
  .art-lede            { font-size: 14px; }
}