/* ── Dev Portal Layout ── */
.dev-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  padding-top: 80px;
}

.dev-sidebar {
  position: sticky;
  top: 80px;
  height: calc(100vh - 80px);
  overflow-y: auto;
  padding: 28px 20px;
  border-right: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 10;
}

.dev-sidebar-header {
  margin-bottom: 24px;
}

.dev-sidebar-header .eyebrow {
  font-size: 0.68rem;
}

.dev-sidebar .site-search {
  margin-bottom: 16px;
}

.dev-sidebar .search-input {
  padding: 9px 12px 9px 36px;
  font-size: 0.82rem;
  border-radius: 10px;
}

.dev-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dev-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-soft);
  transition: background var(--transition), color var(--transition);
}

.dev-nav-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.dev-nav-item.active {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-2);
  font-weight: 600;
}

.dev-nav-item svg {
  flex-shrink: 0;
  opacity: 0.6;
}

.dev-nav-item.active svg {
  opacity: 1;
  color: var(--accent);
}

.dev-sidebar-toggle {
  display: none;
  position: fixed;
  top: 96px;
  left: 12px;
  z-index: 11;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-strong);
  color: var(--text-soft);
  cursor: pointer;
  transition: background var(--transition), left var(--transition);
}

.dev-sidebar-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

/* ── Main Content ── */
.dev-main {
  padding: 48px 56px 80px;
  max-width: 880px;
}

.dev-content h1 {
  margin: 14px 0 12px;
  font-size: clamp(2rem, 3.2vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.dev-lead {
  color: var(--text-soft);
  font-size: 1.04rem;
  margin-bottom: 36px;
}

/* ── Welcome Cards ── */
.dev-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 8px;
}

.dev-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 28px;
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition), transform 180ms ease;
}

.dev-card:hover {
  border-color: rgba(6, 182, 212, 0.24);
  box-shadow: var(--shadow), 0 0 0 1px rgba(6, 182, 212, 0.08) inset, 0 0 40px rgba(6, 182, 212, 0.06);
  transform: translateY(-2px);
}

.dev-card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(6, 182, 212, 0.08);
  color: var(--accent);
  border: 1px solid rgba(6, 182, 212, 0.14);
}

.dev-card h3 {
  margin: 4px 0 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.dev-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-soft);
  line-height: 1.55;
  flex: 1;
}

.dev-card-arrow {
  font-size: 1.1rem;
  color: var(--accent);
  transition: transform var(--transition);
}

.dev-card:hover .dev-card-arrow {
  transform: translateX(4px);
}

/* ── Table of Contents ── */
.dev-toc {
  margin: 0 0 40px;
  padding: 20px 24px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
}

.dev-toc h4 {
  margin: 0 0 12px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.dev-toc ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 6px;
}

.dev-toc a {
  font-size: 0.92rem;
  color: var(--text-soft);
  transition: color var(--transition);
}

.dev-toc a:hover {
  color: var(--accent-2);
}

/* ── Doc Sections ── */
.dev-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.dev-section h2 {
  margin: 0 0 16px;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.dev-section h3 {
  margin: 28px 0 10px;
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--accent-2);
}

.dev-section p {
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.65;
  margin: 0 0 14px;
}

.dev-section code {
  padding: 2px 7px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.84em;
  background: rgba(6, 182, 212, 0.1);
  color: #0e7490;
  border: 1px solid rgba(6, 182, 212, 0.18);
}

/* ── Business Hierarchy ── */
.dev-hierarchy {
  display: grid;
  gap: 8px;
  margin: 20px 0 28px;
}

.dev-hierarchy-item {
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
}

.dev-hierarchy-item strong {
  font-size: 0.96rem;
  color: var(--text);
}

.dev-hierarchy-item p {
  margin: 6px 0 0;
  font-size: 0.88rem;
}

.dev-callout {
  margin: 0 0 24px;
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.18);
  border-left: 3px solid var(--warm);
  font-size: 0.92rem;
  color: var(--text-soft);
  line-height: 1.6;
}

.dev-callout strong {
  color: var(--warm);
}

.dev-badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--warm);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  vertical-align: middle;
  margin-left: 6px;
}

/* ── Flow Diagram ── */
.dev-flow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0 28px;
  flex-wrap: wrap;
}

.dev-flow-step {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.18);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--accent-2);
  font-weight: 600;
}

.dev-flow-arrow {
  color: var(--text-muted);
  font-size: 1.2rem;
}

/* ── Figures ── */
.dev-figure {
  margin: 24px 0 32px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  max-width: 70%;
}

.dev-figure img {
  width: 100%;
  display: block;
}

.dev-figure figcaption {
  padding: 12px 18px;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--line);
  font-style: italic;
}

/* ── Page Navigation ── */
.dev-page-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  gap: 16px;
}

.dev-page-nav a {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
  transition: border-color var(--transition), color var(--transition);
}

.dev-page-nav a:hover {
  border-color: rgba(6, 182, 212, 0.24);
  color: var(--accent-2);
}

/* ── Placeholder ── */
.dev-placeholder {
  padding: 32px;
  border-radius: var(--radius);
  margin-top: 8px;
}

.dev-placeholder > p:first-child {
  margin: 0 0 16px;
  font-size: 0.96rem;
  color: var(--text-soft);
}

/* ── Tables ── */
.dev-table-wrap {
  overflow-x: auto;
  margin: 16px 0 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
}

.dev-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.dev-table th {
  text-align: left;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--line);
}

.dev-table td {
  padding: 10px 16px;
  color: var(--text-soft);
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.dev-table tr:last-child td {
  border-bottom: none;
}

.dev-table code {
  padding: 1px 6px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: rgba(6, 182, 212, 0.1);
  color: #0e7490;
  border: 1px solid rgba(6, 182, 212, 0.18);
}

/* ── Code Blocks ── */
.dev-code-block {
  margin: 12px 0 20px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--line);
}

.dev-code-label {
  padding: 8px 16px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--line);
}

.dev-code-block pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  background: #0c1524;
}

.dev-code-block code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #5eead4;
  line-height: 1.6;
  background: none;
  border: none;
  padding: 0;
}

/* ── CTA Block ── */
.dev-cta-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
  border-radius: var(--radius);
  margin-bottom: 32px;
}

.dev-cta-block h3 {
  margin: 0 0 6px;
  font-size: 1.1rem;
  color: var(--text);
}

.dev-cta-block p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-soft);
}

.dev-cta-block .btn {
  flex-shrink: 0;
  white-space: nowrap;
}

.dev-cta-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}

/* ── Flow Diagram ── */
.dev-flow-diagram {
  margin: 20px 0 28px;
  padding: 24px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
}

.dev-flow-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.dev-flow-col-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
}

.dev-flow-steps {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
}

.dev-flow-steps li {
  font-size: 0.88rem;
  color: var(--text-soft);
  line-height: 1.55;
}

.dev-flow-steps code {
  padding: 1px 6px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.8em;
  background: rgba(6, 182, 212, 0.1);
  color: #0e7490;
  border: 1px solid rgba(6, 182, 212, 0.18);
}

.dev-flow-from,
.dev-flow-to {
  font-weight: 600;
  color: var(--accent-2);
}

/* ── Mobile ── */
@media (max-width: 900px) {
  .dev-layout {
    grid-template-columns: 1fr;
  }

  .dev-sidebar {
    position: fixed;
    top: 80px;
    left: 0;
    width: 280px;
    transform: translateX(-100%);
    transition: transform var(--transition);
    box-shadow: 4px 0 40px rgba(0, 0, 0, 0.4);
  }

  .dev-sidebar.open {
    transform: translateX(0);
  }

  .dev-sidebar-toggle {
    display: flex;
  }

  .dev-sidebar-toggle.shifted {
    left: 292px;
  }

  .dev-main {
    padding: 36px 20px 80px;
  }

  .dev-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .dev-content h1 {
    font-size: 1.6rem;
  }

  .dev-main {
    padding: 28px 16px 60px;
  }

  .dev-flow {
    flex-direction: column;
    align-items: flex-start;
  }

  .dev-flow-arrow {
    transform: rotate(90deg);
  }
}