/* ===== Migration Project Pages (banma-migrator & fero-migration) ===== */

/* ── Local shimmer (for migration pages loaded without project-detail.css context) ── */
@keyframes shimmerMig {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

/* ── SVG Flow Diagram ── */
.svg-flow-wrapper {
  position: relative;
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid rgba(226,232,240,0.8);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 16px;
  box-sizing: border-box;
  cursor: zoom-in;
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.9);
}

.svg-flow-wrapper:hover {
  box-shadow: 0 8px 28px rgba(249,115,22,0.12), 0 2px 8px rgba(0,0,0,0.06);
  border-color: rgba(249,115,22,0.4);
  transform: translateY(-2px);
}

.svg-flow-img {
  display: block;
  width: 100%;
  height: auto;
  min-width: 600px;
  pointer-events: none;
  user-select: none;
}

/* zoom hint badge */
.svg-zoom-hint {
  position: absolute;
  bottom: 12px;
  right: 14px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: rgba(249, 115, 22, 0.88);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 500;
  border-radius: 20px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.svg-flow-wrapper:hover .svg-zoom-hint {
  opacity: 1;
  transform: translateY(0);
}

/* ── Lightbox ── */
.svg-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.svg-lightbox.is-open {
  display: flex;
}

.svg-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  animation: lbFadeIn 0.2s ease;
}

.svg-lightbox-content {
  position: relative;
  z-index: 1;
  max-width: 95vw;
  max-height: 92vh;
  background: #fff;
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  overflow: auto;
  animation: lbSlideIn 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.svg-lightbox-img {
  display: block;
  width: auto;
  height: auto;
  max-width: 90vw;
  max-height: 80vh;
  min-width: 800px;
}

.svg-lightbox-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.08);
  color: #374151;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, transform 0.15s ease;
  z-index: 2;
}

.svg-lightbox-close:hover {
  background: rgba(249, 115, 22, 0.15);
  color: #f97316;
  transform: scale(1.1);
}

@keyframes lbFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes lbSlideIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

/* ── Hero ── */
.migration-hero {
  background: linear-gradient(135deg, #7c2d12 0%, #c2410c 40%, #f97316 80%, #fbbf24 100%);
}

.fero-hero {
  background: linear-gradient(135deg, #064e3b 0%, #065f46 40%, #059669 80%, #34d399 100%);
}

.migration-badge {
  background: rgba(251, 191, 36, 0.25);
  border-color: rgba(251, 191, 36, 0.4);
}

.fero-badge {
  background: rgba(52, 211, 153, 0.25);
  border-color: rgba(52, 211, 153, 0.4);
}

.migration-icon {
  background: linear-gradient(135deg, #f97316, #fbbf24);
}

.fero-icon {
  background: linear-gradient(135deg, #059669, #34d399);
}

/* ── Directory Tree ── */
.dir-tree-wrapper {
  background: #0f172a;
  border-radius: var(--radius);
  padding: 24px 28px;
  overflow-x: auto;
}

.dir-tree {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
  font-size: 0.82rem;
  line-height: 1.6;
}

.dir-line {
  display: flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
}

.dir-root { color: #f8fafc; font-weight: 700; font-size: 0.9rem; margin-bottom: 4px; }
.dir-l1   { padding-left: 20px; color: #94a3b8; }
.dir-l2   { padding-left: 44px; color: #64748b; }

.dir-root i { color: #fbbf24; }
.dir-l1 i   { color: #60a5fa; }
.dir-l2 i   { color: #4ade80; }

.dir-name    { color: #e2e8f0; font-weight: 500; }
.dir-root .dir-name { color: #fbbf24; }
.dir-comment { color: #475569; font-size: 0.76rem; margin-left: 4px; }

/* ── Pipeline Steps ── */
.pipeline-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}

.ps-item {
  display: flex;
  gap: 18px;
  padding: 16px 20px;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: var(--radius);
  border: 1px solid rgba(226,232,240,0.8);
  border-left: 3px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), inset 0 1px 0 rgba(255,255,255,0.9);
}

.ps-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 25%, rgba(255,255,255,0.55) 50%, transparent 75%);
  background-size: 200% 100%;
  background-position: -200% center;
  opacity: 0;
  pointer-events: none;
}

.ps-item:hover {
  box-shadow: 0 4px 16px rgba(249,115,22,0.1), inset 0 1px 0 rgba(255,255,255,0.95);
  border-color: rgba(249, 115, 22, 0.2);
  border-left-color: #f97316;
  background: white;
}

.ps-item:hover::after {
  opacity: 1;
  animation: shimmerMig 0.65s ease forwards;
}

.ps-num {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
  flex-shrink: 0;
  width: 52px;
  font-family: 'Inter', sans-serif;
}

.migration-num-bg { color: rgba(249, 115, 22, 0.2); }
.fero-num-bg      { color: rgba(5, 150, 105, 0.2); }

.ps-content h4 {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 5px;
}

.ps-content p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.ps-content code {
  background: rgba(249, 115, 22, 0.1);
  color: #c2410c;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-family: 'Fira Code', 'Consolas', monospace;
}

/* ── Code Block ── */
.code-block {
  background: #0f172a;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(51,65,85,0.8);
  box-shadow: 0 2px 8px rgba(0,0,0,0.18), inset 0 1px 0 rgba(255,255,255,0.04);
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.code-block:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.25), 0 0 0 1px rgba(249,115,22,0.2);
  border-color: rgba(249,115,22,0.3);
}

.code-header {
  padding: 8px 16px;
  background: #1e293b;
  border-bottom: 1px solid #334155;
}

.code-lang {
  font-size: 0.75rem;
  color: #64748b;
  font-family: 'Fira Code', monospace;
}

.code-block pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
}

.code-block code {
  font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
  font-size: 0.78rem;
  line-height: 1.7;
  color: #e2e8f0;
  white-space: pre;
}

/* ── page-logic.json layout ── */
.logic-json-layout {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.logic-json-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.logic-json-desc code {
  background: rgba(249, 115, 22, 0.1);
  color: #c2410c;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-family: 'Fira Code', monospace;
}

.logic-fields {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lf-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(226,232,240,0.8);
  transition: var(--transition);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.lf-item:hover {
  background: white;
  border-color: rgba(249,115,22,0.25);
  box-shadow: 0 2px 8px rgba(249,115,22,0.08);
  transform: translateX(2px);
}

.lf-key {
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  font-weight: 600;
  color: #c2410c;
  background: rgba(249, 115, 22, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 90px;
  text-align: center;
}

.lf-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── FSD Layers ── */
.fsd-layers {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.fsd-layer {
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid rgba(226,232,240,0.8);
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05), inset 0 1px 0 rgba(255,255,255,0.9);
}

.fsd-layer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 25%, rgba(255,255,255,0.5) 50%, transparent 75%);
  background-size: 200% 100%;
  background-position: -200% center;
  opacity: 0;
  pointer-events: none;
}

.fsd-layer:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.95);
  transform: translateY(-2px);
  background: white;
}

.fsd-layer:hover::after {
  opacity: 1;
  animation: shimmerMig 0.65s ease forwards;
}

.fsd-ui    { border-left: 3px solid #8b5cf6; }
.fsd-model { border-left: 3px solid #f59e0b; }
.fsd-api   { border-left: 3px solid #10b981; }

.fsd-ui:hover    { box-shadow: 0 6px 20px rgba(139,92,246,0.12), inset 0 1px 0 rgba(255,255,255,0.95); }
.fsd-model:hover { box-shadow: 0 6px 20px rgba(245,158,11,0.12), inset 0 1px 0 rgba(255,255,255,0.95); }
.fsd-api:hover   { box-shadow: 0 6px 20px rgba(16,185,129,0.12), inset 0 1px 0 rgba(255,255,255,0.95); }

.fsd-layer-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.fsd-ui    .fsd-layer-header i { color: #8b5cf6; }
.fsd-model .fsd-layer-header i { color: #f59e0b; }
.fsd-api   .fsd-layer-header i { color: #10b981; }

.fsd-layer-header h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.fsd-layer p {
  font-size: 0.81rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Agent Grid ── */
.agent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.agent-card {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: var(--radius);
  border: 1px solid rgba(226,232,240,0.8);
  border-left: 3px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05), inset 0 1px 0 rgba(255,255,255,0.9);
}

/* Shimmer sweep */
.agent-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 25%,
    rgba(255,255,255,0.6) 50%,
    transparent 75%
  );
  background-size: 200% 100%;
  background-position: -200% center;
  opacity: 0;
  pointer-events: none;
}

.agent-card:hover {
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.95);
  border-color: rgba(249, 115, 22, 0.2);
  border-left-color: #f97316;
  transform: translateX(2px);
  background: white;
}

.agent-card:hover::after {
  opacity: 1;
  animation: shimmerMig 0.65s ease forwards;
}

.agent-num {
  font-size: 1.4rem;
  font-weight: 800;
  color: rgba(249, 115, 22, 0.2);
  font-family: 'Inter', sans-serif;
  line-height: 1;
  flex-shrink: 0;
  width: 44px;
}

.agent-info h4 {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 5px;
}

.agent-info p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.agent-isolation-note {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(249, 115, 22, 0.05);
  border-radius: var(--radius);
  border: 1px solid rgba(249, 115, 22, 0.15);
}

.agent-isolation-note i {
  color: #f97316;
  flex-shrink: 0;
  margin-top: 2px;
}

.agent-isolation-note p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Fero Problem Grid ── */
.fero-problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.fero-problem-card {
  border-radius: var(--radius-md);
  border: 1px solid rgba(226,232,240,0.8);
  overflow: hidden;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05), inset 0 1px 0 rgba(255,255,255,0.9);
  transition: var(--transition);
}

.fero-problem-card:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.95);
  transform: translateY(-2px);
  border-color: rgba(16,185,129,0.25);
}

.fp-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
}

.fero-problem-before .fp-header {
  background: rgba(239, 68, 68, 0.05);
}

.fero-problem-after .fp-header {
  background: rgba(16, 185, 129, 0.05);
}

.fero-problem-before .fp-header i { color: #ef4444; }
.fero-problem-after  .fp-header i { color: #10b981; }

.fp-header h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.fp-arch {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  border-bottom: 1px solid var(--border-color);
}

.fp-layer {
  width: 100%;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  text-align: center;
}

.fp-layer-runtime { background: rgba(239, 68, 68, 0.1);  color: #b91c1c; border: 1px solid rgba(239,68,68,0.2); }
.fp-layer-dsl     { background: rgba(245, 158, 11, 0.1); color: #92400e; border: 1px solid rgba(245,158,11,0.2); }
.fp-layer-render  { background: rgba(107, 114, 128, 0.1);color: #374151; border: 1px solid rgba(107,114,128,0.2); }
.fp-layer-react   { background: rgba(139, 92, 246, 0.1); color: #5b21b6; border: 1px solid rgba(139,92,246,0.2); }
.fp-layer-shared  { background: rgba(59, 130, 246, 0.1); color: #1d4ed8; border: 1px solid rgba(59,130,246,0.2); }
.fp-layer-build   { background: rgba(16, 185, 129, 0.1); color: #065f46; border: 1px solid rgba(16,185,129,0.2); }

.fp-arrow-down {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.fp-issues {
  list-style: none;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.fp-issues li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.fp-issues li i { flex-shrink: 0; margin-top: 2px; }
.fero-problem-before .fp-issues li i { color: #ef4444; }
.fp-benefits li i { color: #10b981; }

/* ── Transform Stages ── */
.transform-stages {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.ts-stage {
  flex: 1;
  min-width: 240px;
}

.ts-stage-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  margin-bottom: 0;
}

.fero-stage-header { background: rgba(249, 115, 22, 0.08); border: 1px solid rgba(249,115,22,0.2); border-bottom: none; }
.ir-stage-header   { background: rgba(245, 158, 11, 0.08); border: 1px solid rgba(245,158,11,0.2); border-bottom: none; }
.tsx-stage-header  { background: rgba(139, 92, 246, 0.08); border: 1px solid rgba(139,92,246,0.2); border-bottom: none; }

.ts-stage-num {
  font-size: 0.75rem;
  font-weight: 700;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
  background: #f97316;
}

.ir-stage-header  .ts-stage-num { background: #f59e0b; }
.tsx-stage-header .ts-stage-num { background: #8b5cf6; }

.ts-stage-header h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.ts-stage-badge {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: 'Fira Code', monospace;
  white-space: nowrap;
}

.ts-stage .code-block {
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.ts-arrow {
  color: var(--text-muted);
  font-size: 1.2rem;
  padding-top: 48px;
  flex-shrink: 0;
}

/* ── Rule vs Claude ── */
.rule-vs-claude {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.rvc-card {
  border-radius: var(--radius-md);
  border: 1px solid rgba(226,232,240,0.8);
  padding: 20px 22px;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05), inset 0 1px 0 rgba(255,255,255,0.9);
}

.rvc-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 25%, rgba(255,255,255,0.55) 50%, transparent 75%);
  background-size: 200% 100%;
  background-position: -200% center;
  opacity: 0;
  pointer-events: none;
}

.rvc-card:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.95);
  background: white;
  transform: translateY(-2px);
}

.rvc-card:hover::after {
  opacity: 1;
  animation: shimmerMig 0.65s ease forwards;
}

.rvc-rule  { border-top: 3px solid #10b981; }
.rvc-claude { border-top: 3px solid #8b5cf6; }

.rvc-rule:hover  { box-shadow: 0 6px 20px rgba(16,185,129,0.12), inset 0 1px 0 rgba(255,255,255,0.95); }
.rvc-claude:hover { box-shadow: 0 6px 20px rgba(139,92,246,0.12), inset 0 1px 0 rgba(255,255,255,0.95); }

.rvc-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.rvc-rule   .rvc-header i { color: #10b981; }
.rvc-claude .rvc-header i { color: #8b5cf6; }

.rvc-header h4 {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
}

.rvc-card > p {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.rvc-card > p code {
  background: rgba(16, 185, 129, 0.1);
  color: #065f46;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-family: 'Fira Code', monospace;
}

.rvc-claude > p code {
  background: rgba(139, 92, 246, 0.1);
  color: #5b21b6;
}

.rvc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rvc-list li {
  font-size: 0.81rem;
  color: var(--text-secondary);
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}

.rvc-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: #10b981;
}

.rvc-claude .rvc-list li::before { color: #8b5cf6; }

/* ── Monorepo Note ── */
.monorepo-note {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(5, 150, 105, 0.05);
  border-radius: var(--radius);
  border: 1px solid rgba(5, 150, 105, 0.15);
}

.monorepo-note i {
  color: #059669;
  flex-shrink: 0;
  margin-top: 2px;
}

.monorepo-note p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.monorepo-note code {
  background: rgba(5, 150, 105, 0.1);
  color: #065f46;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-family: 'Fira Code', monospace;
}

/* ── Footer Buttons ── */
.migration-next {
  background: linear-gradient(135deg, #f97316, #ea580c);
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
}

.migration-next:hover {
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.4);
}

.fero-next {
  background: linear-gradient(135deg, #059669, #065f46);
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.3);
}

.fero-next:hover {
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.4);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .dir-tree-wrapper {
    padding: 16px;
  }

  .dir-l1 { padding-left: 14px; }
  .dir-l2 { padding-left: 28px; }

  .transform-stages {
    flex-direction: column;
  }

  .ts-arrow {
    padding-top: 0;
    transform: rotate(90deg);
    align-self: center;
  }

  .fsd-layers,
  .agent-grid,
  .fero-problem-grid,
  .rule-vs-claude {
    grid-template-columns: 1fr;
  }

  .ps-item {
    flex-direction: column;
    gap: 8px;
  }

  .ps-num {
    font-size: 1.2rem;
    width: auto;
  }
}