/* ============================================================
   Tech Review Pages - Shared Styles
   Dark-mode · Matches 1Month "Momentum" design system
   ============================================================ */

/* ── Hero ──────────────────────────────────────────────────── */
.tr-hero {
  padding: 140px var(--space-lg) var(--space-3xl);
  position: relative;
  z-index: 1;
  text-align: center;
}

.tr-hero-inner {
  max-width: 860px;
  margin: 0 auto;
}

.tr-breadcrumb {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.6s var(--ease-out) both;
}

.tr-breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--transition);
}

.tr-breadcrumb a:hover {
  color: var(--primary-light);
}

.tr-breadcrumb-sep {
  margin: 0 6px;
  opacity: 0.5;
}

.tr-breadcrumb-current {
  color: var(--text-primary);
  font-weight: 500;
}

.tr-hero-badge {
  display: inline-block;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.6s var(--ease-out) 0.05s both;
}

.tr-badge--teal {
  background: rgba(13, 148, 136, 0.12);
  color: #0F766E;
  border: 1px solid rgba(13, 148, 136, 0.30);
}

.tr-badge--coral {
  background: rgba(224, 122, 95, 0.14);
  color: #9A3412;
  border: 1px solid rgba(224, 122, 95, 0.35);
}

.tr-hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
  animation: fadeInUp 0.6s var(--ease-out) 0.1s both;
}

.tr-hero-subtitle-inline {
  display: block;
  font-size: clamp(1.2rem, 2.5vw, 1.75rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

.tr-hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
  animation: fadeInUp 0.6s var(--ease-out) 0.15s both;
}

.tr-hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
  animation: fadeInUp 0.6s var(--ease-out) 0.25s both;
}

.tr-stat {
  text-align: center;
}

.tr-stat-number {
  display: block;
  font-family: 'Playfair Display', serif;
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.tr-stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

/* ── Main Layout ───────────────────────────────────────────── */
.tr-main {
  display: flex;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  gap: var(--space-2xl);
  position: relative;
  z-index: 1;
}

/* ── Sidebar TOC ───────────────────────────────────────────── */
.tr-sidebar {
  width: 220px;
  flex-shrink: 0;
  position: sticky;
  top: 100px;
  align-self: flex-start;
  height: fit-content;
}

.tr-toc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.tr-toc-title {
  font-family: 'Playfair Display', serif;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.tr-toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tr-toc-link {
  display: block;
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition);
  border-left: 2px solid transparent;
}

.tr-toc-link:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.03);
}

.tr-toc-link.active {
  color: var(--primary-light);
  background: var(--primary-surface);
  border-left-color: var(--primary);
}

/* ── Content ───────────────────────────────────────────────── */
.tr-content {
  flex: 1;
  min-width: 0;
  padding-bottom: var(--space-4xl);
}

.tr-section {
  margin-bottom: var(--space-3xl);
  scroll-margin-top: 100px;
}

.tr-section-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.tr-section-icon {
  font-size: 1.5rem;
}

.tr-section-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ── Cards ─────────────────────────────────────────────────── */
.tr-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  transition: border-color var(--transition);
}

.tr-card:hover {
  border-color: var(--border-glow);
}

.tr-card-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.tr-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.tr-text--muted {
  opacity: 0.85;
}

/* ── Blockquote ────────────────────────────────────────────── */
.tr-quote {
  border-left: 3px solid var(--primary);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  background: var(--primary-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text-accent);
  font-size: 1rem;
  line-height: 1.6;
}

/* ── Feature Grid ──────────────────────────────────────────── */
.tr-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.tr-feature {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.tr-feature:hover {
  border-color: var(--border-glow);
  background: rgba(0, 0, 0, 0.04);
  transform: translateY(-2px);
}

.tr-feature-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.tr-feature strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 2px;
  color: var(--text-primary);
}

.tr-feature p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

/* ── Tables ────────────────────────────────────────────────── */
.tr-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tr-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.tr-table th {
  text-align: left;
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border);
}

.tr-table td {
  padding: 10px var(--space-md);
  border-bottom: 1px solid rgba(0, 0, 0, 0.03);
  color: var(--text-secondary);
  vertical-align: top;
}

.tr-table tbody tr:hover {
  background: rgba(0, 0, 0, 0.02);
}

.tr-table code, .tr-feature code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  background: rgba(124, 58, 237, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--primary-light);
}

.tr-table--compact td {
  padding: 8px var(--space-md);
}

/* ── Layer Badges ──────────────────────────────────────────── */
.tr-layer-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}

.tr-layer--mobile {
  background: rgba(59, 130, 246, 0.10);
  color: #1D4ED8;
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.tr-layer--web {
  background: rgba(168, 85, 247, 0.10);
  color: #6D28D9;
  border: 1px solid rgba(168, 85, 247, 0.25);
}

.tr-layer--backend {
  background: rgba(16, 185, 129, 0.10);
  color: #047857;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.tr-layer--data {
  background: rgba(245, 158, 11, 0.12);
  color: #B45309;
  border: 1px solid rgba(245, 158, 11, 0.30);
}

.tr-layer--ai {
  background: rgba(236, 72, 153, 0.10);
  color: #BE185D;
  border: 1px solid rgba(236, 72, 153, 0.25);
}

.tr-layer--ops {
  background: rgba(239, 68, 68, 0.10);
  color: #B91C1C;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

/* ── Code Blocks ───────────────────────────────────────────── */
.tr-code {
  background: #EAEAEE;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tr-code code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Architecture Diagram ──────────────────────────────────── */
.tr-arch-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg) 0;
}

.tr-arch-row {
  width: 100%;
}

.tr-arch-group {
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
}

.tr-arch-group-label {
  font-family: 'Playfair Display', serif;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  text-align: center;
}

.tr-arch-nodes {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

.tr-arch-node {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  text-align: center;
  border: 1px solid;
  transition: all var(--transition);
}

.tr-arch-node:hover {
  transform: translateY(-2px);
}

.tr-arch-node small {
  display: block;
  font-size: 0.7rem;
  opacity: 0.7;
  margin-top: 2px;
}

.tr-arch-node--client {
  background: rgba(59, 130, 246, 0.10);
  border-color: rgba(59, 130, 246, 0.25);
  color: #1D4ED8;
}

.tr-arch-node--infra {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.30);
  color: #B45309;
}

.tr-arch-node--service {
  background: rgba(16, 185, 129, 0.10);
  border-color: rgba(16, 185, 129, 0.25);
  color: #047857;
}

.tr-arch-node--data {
  background: rgba(168, 85, 247, 0.10);
  border-color: rgba(168, 85, 247, 0.25);
  color: #6D28D9;
}

.tr-arch-arrow {
  font-size: 1.2rem;
  color: var(--text-secondary);
  opacity: 0.5;
  text-align: center;
  line-height: 1;
}

/* ── Callout ───────────────────────────────────────────────── */
.tr-callout {
  margin-top: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
  background: rgba(124, 58, 237, 0.06);
  border-left: 3px solid var(--primary);
}

.tr-callout strong {
  color: var(--text-primary);
}

.tr-callout code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  background: rgba(124, 58, 237, 0.1);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--primary-light);
}

.tr-callout--info {
  background: rgba(59, 130, 246, 0.06);
  border-left-color: var(--info);
}

.tr-callout--warning {
  background: rgba(245, 158, 11, 0.06);
  border-left-color: var(--secondary);
}

/* ── Entity Cards ──────────────────────────────────────────── */
.tr-entity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
}

.tr-entity {
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: all var(--transition);
}

.tr-entity:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.tr-entity-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border);
}

.tr-entity-icon {
  font-size: 1.2rem;
}

.tr-entity-fields {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.tr-entity-fields li {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  line-height: 1.5;
}

.tr-entity-fields code {
  color: var(--text-primary);
  font-size: inherit;
}

.tr-field-badge {
  display: inline-block;
  padding: 0 5px;
  border-radius: 3px;
  font-size: 0.65rem;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  background: rgba(124, 58, 237, 0.15);
  color: var(--primary-light);
}

.tr-field-badge--unique {
  background: rgba(245, 158, 11, 0.18);
  color: #B45309;
}

.tr-field-badge--fk {
  background: rgba(59, 130, 246, 0.18);
  color: #1D4ED8;
}

/* ── Infrastructure Map ──────────────────────────────────────── */
.tr-infra-map {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) 0;
}

.tr-infra-tier {
  width: 100%;
}

.tr-infra-tier-label {
  font-family: 'Playfair Display', serif;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--space-sm);
}

.tr-infra-nodes {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
}

.tr-infra-nodes--wrap {
  flex-wrap: wrap;
}

.tr-infra-node {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 0.82rem;
  border: 1px solid;
  transition: all var(--transition);
  min-width: 140px;
}

.tr-infra-node:hover {
  transform: translateY(-2px);
}

.tr-infra-node--cdn {
  background: rgba(245, 158, 11, 0.10);
  border-color: rgba(245, 158, 11, 0.30);
  color: #B45309;
  flex: 1;
  max-width: 500px;
}

.tr-infra-node--compute {
  background: rgba(16, 185, 129, 0.10);
  border-color: rgba(16, 185, 129, 0.30);
  color: #047857;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  min-width: auto;
}

.tr-infra-node--data {
  background: rgba(168, 85, 247, 0.10);
  border-color: rgba(168, 85, 247, 0.25);
  color: #6D28D9;
}

.tr-infra-node small {
  display: block;
  font-size: 0.7rem;
  opacity: 0.7;
  margin-top: 2px;
}

.tr-infra-node-icon {
  display: block;
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.tr-infra-node-details {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: center;
  margin-top: var(--space-sm);
}

.tr-infra-detail {
  padding: 1px 8px;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-secondary);
}

.tr-infra-connector {
  text-align: center;
  color: var(--text-secondary);
  opacity: 0.3;
  font-size: 1.2rem;
  line-height: 1;
}

/* ── Pipeline ──────────────────────────────────────────────── */
.tr-pipeline {
  display: flex;
  gap: var(--space-md);
  align-items: stretch;
}

.tr-pipeline-stage {
  flex: 1;
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition);
}

.tr-pipeline-stage:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.tr-pipeline-stage-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.tr-pipeline-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-surface);
  border: 1px solid var(--border-glow);
  color: var(--primary-light);
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

.tr-pipeline-number--danger {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.30);
  color: #B91C1C;
}

.tr-pipeline-number--warning {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.30);
  color: #B45309;
}

.tr-pipeline-number--info {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.30);
  color: #1D4ED8;
}

.tr-pipeline-number--success {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.30);
  color: #047857;
}

.tr-pipeline-list {
  list-style: none;
  margin-bottom: var(--space-md);
}

.tr-pipeline-list li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 3px 0;
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}

.tr-pipeline-list li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--primary-light);
  font-weight: 700;
}

.tr-pipeline-list code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  background: rgba(124, 58, 237, 0.08);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--primary-light);
}

.tr-pipeline-trigger {
  font-size: 0.72rem;
  color: var(--text-secondary);
  opacity: 0.6;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border);
}

.tr-pipeline-arrow {
  display: flex;
  align-items: center;
  font-size: 1.2rem;
  color: var(--text-secondary);
  opacity: 0.4;
  flex-shrink: 0;
}

/* Vertical pipeline variant */
.tr-pipeline--vertical {
  flex-direction: column;
  gap: 0;
  align-items: stretch;
  max-width: 600px;
}

.tr-pipeline-stage--v {
  flex: none;
}

.tr-pipeline-arrow-v {
  text-align: center;
  font-size: 1.5rem;
  color: var(--text-secondary);
  opacity: 0.3;
  line-height: 1;
  padding: 2px 0;
}

.tr-pipeline-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.tr-pipeline-desc code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  background: rgba(124, 58, 237, 0.08);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--primary-light);
}

/* ── Decisions Grid ────────────────────────────────────────── */
.tr-decisions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}

.tr-decision {
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition);
}

.tr-decision:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.tr-decision-title {
  font-family: 'Playfair Display', serif;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.tr-decision p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.tr-decision code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  background: rgba(124, 58, 237, 0.08);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--primary-light);
}

/* ── Active nav link ───────────────────────────────────────── */
.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  width: 100%;
}

/* ══════════════════════════════════════════════════════════════
   ARCHITECTURE DIAGRAMS - Premium Visual Components
   ══════════════════════════════════════════════════════════════ */

/* ── Grid: two panels side-by-side ───────────────────────── */
.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 8px;
}

/* ── Panel: dark container with subtle teal glow ─────────── */
.arch-panel {
  background: linear-gradient(165deg, #0C1424 0%, #080E1A 100%);
  border: 1px solid rgba(94, 234, 212, 0.08);
  border-radius: 16px;
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
}

.arch-panel::before {
  content: '';
  position: absolute;
  top: 0;  left: 0;  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(94, 234, 212, 0.18), transparent);
}

/* ── Panel label: "SOFTWARE ARCHITECTURE" ────────────────── */
.arch-label {
  font-family: 'Playfair Display', serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: #5EEAD4;
  margin-bottom: 20px;
}

/* ── Inner frame: bordered content area ──────────────────── */
.arch-frame {
  border: 1px solid rgba(94, 234, 212, 0.06);
  border-radius: 12px;
  padding: 24px 20px 20px;
  background: rgba(0, 0, 0, 0.2);
}

/* ── App title block ─────────────────────────────────────── */
.arch-title-block {
  text-align: center;
  margin-bottom: 22px;
}

.arch-title-block h4 {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  font-weight: 700;
  color: #F1F0F5;
  margin-bottom: 4px;
}

.arch-title-block p {
  font-size: 12px;
  color: rgba(241, 240, 245, 0.42);
  margin: 0;
}

/* ── Client cards row ────────────────────────────────────── */
.arch-clients {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.arch-client {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 95px;
}

.arch-client-ico {
  width: 46px;
  height: 46px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.08);
  transition: border-color 0.3s, transform 0.3s;
}

.arch-client:hover .arch-client-ico {
  border-color: rgba(94, 234, 212, 0.2);
  transform: translateY(-2px);
}

.arch-client-name {
  font-size: 12px;
  font-weight: 600;
  color: #F1F0F5;
  text-align: center;
  line-height: 1.25;
}

.arch-client-tech {
  font-size: 10px;
  color: rgba(241, 240, 245, 0.38);
}

/* ── Vertical connector line with arrow ──────────────────── */
.arch-vline {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 0;
}

.arch-vline-bar {
  width: 2px;
  height: 20px;
  background: linear-gradient(180deg, rgba(94, 234, 212, 0.25), rgba(94, 234, 212, 0.1));
}

.arch-vline-tip {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid rgba(94, 234, 212, 0.22);
}

/* ── Branching connector (center → horizontal → down to N nodes) ── */
.arch-branch {
  position: relative;
  height: 28px;
  margin: 0 auto;
  width: 70%;
}

/* Vertical stem from center top */
.arch-branch::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 2px;
  height: 14px;
  background: rgba(94, 234, 212, 0.2);
  transform: translateX(-50%);
}

/* Horizontal crossbar */
.arch-branch::after {
  content: '';
  position: absolute;
  top: 14px;
  left: 0;
  right: 0;
  height: 2px;
  background: rgba(94, 234, 212, 0.15);
}

/* Individual branch drops (placed inside with spans) */
.arch-branch-drop {
  position: absolute;
  top: 16px;
  width: 2px;
  height: 12px;
  background: rgba(94, 234, 212, 0.15);
}

.arch-branch-drop--1 { left: 0; }
.arch-branch-drop--2 { left: 50%; transform: translateX(-50%); }
.arch-branch-drop--3 { right: 0; }
.arch-branch-drop--4 { left: 25%; }
.arch-branch-drop--5 { left: 75%; }

/* ── Gateway box (dashed border) ─────────────────────────── */
.arch-gateway {
  border: 2px dashed rgba(94, 234, 212, 0.22);
  border-radius: 8px;
  padding: 10px 16px;
  text-align: center;
  margin: 0 auto;
  max-width: 360px;
}

.arch-gateway span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: #5EEAD4;
}

/* ── Service cards row ───────────────────────────────────── */
.arch-services {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.arch-svc {
  flex: 1;
  min-width: 120px;
  max-width: 155px;
  border-radius: 10px;
  padding: 14px 12px;
  transition: transform 0.25s;
}

.arch-svc:hover { transform: translateY(-2px); }

.arch-svc--green {
  background: linear-gradient(150deg, rgba(16, 185, 129, 0.22) 0%, rgba(16, 185, 129, 0.06) 100%);
  border: 1px solid rgba(16, 185, 129, 0.32);
}
.arch-svc--purple {
  background: linear-gradient(150deg, rgba(124, 58, 237, 0.22) 0%, rgba(124, 58, 237, 0.06) 100%);
  border: 1px solid rgba(124, 58, 237, 0.32);
}
.arch-svc--blue {
  background: linear-gradient(150deg, rgba(59, 130, 246, 0.22) 0%, rgba(59, 130, 246, 0.06) 100%);
  border: 1px solid rgba(59, 130, 246, 0.32);
}
.arch-svc--amber {
  background: linear-gradient(150deg, rgba(245, 158, 11, 0.22) 0%, rgba(245, 158, 11, 0.06) 100%);
  border: 1px solid rgba(245, 158, 11, 0.32);
}

.arch-svc-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 700;
  color: #F1F0F5;
  text-align: center;
  margin-bottom: 2px;
}

.arch-svc-runtime {
  font-size: 10px;
  color: rgba(241, 240, 245, 0.42);
  text-align: center;
  margin-bottom: 8px;
}

.arch-svc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.arch-svc-list li {
  font-size: 11px;
  color: rgba(241, 240, 245, 0.55);
  padding: 1.5px 0;
}

.arch-svc-list li::before {
  content: '• ';
  color: rgba(241, 240, 245, 0.22);
}

/* ── Data layer bar ──────────────────────────────────────── */
.arch-data {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 16px;
  background: linear-gradient(150deg, rgba(16, 185, 129, 0.06), rgba(59, 130, 246, 0.04));
  border: 1px solid rgba(94, 234, 212, 0.08);
  border-radius: 10px;
}

.arch-data-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  min-width: 72px;
  text-align: center;
}

.arch-data-ico {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
}

.arch-data-ico--green  { background: rgba(16, 185, 129, 0.14); border: 1px solid rgba(16, 185, 129, 0.22); }
.arch-data-ico--red    { background: rgba(239, 68, 68, 0.14);  border: 1px solid rgba(239, 68, 68, 0.22);  }
.arch-data-ico--blue   { background: rgba(59, 130, 246, 0.14); border: 1px solid rgba(59, 130, 246, 0.22); }
.arch-data-ico--amber  { background: rgba(245, 158, 11, 0.14); border: 1px solid rgba(245, 158, 11, 0.22); }
.arch-data-ico--purple { background: rgba(168, 85, 247, 0.14); border: 1px solid rgba(168, 85, 247, 0.22); }

.arch-data-name {
  font-size: 11px;
  font-weight: 600;
  color: #F1F0F5;
  line-height: 1.25;
}

.arch-data-sub {
  font-size: 9px;
  color: rgba(241, 240, 245, 0.35);
  line-height: 1.2;
}

/* ── Caption ─────────────────────────────────────────────── */
.arch-caption {
  text-align: center;
  font-size: 11px;
  color: rgba(241, 240, 245, 0.28);
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
}

/* ── Diagram image ───────────────────────────────────────── */
.arch-img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
}

/* ══════════════════════════════════════════════════════════════
   DEPLOYMENT ARCHITECTURE
   ══════════════════════════════════════════════════════════════ */

.deploy-flow {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

/* Tier row */
.deploy-row {
  width: 100%;
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Group box */
.deploy-group {
  border: 1px solid rgba(94, 234, 212, 0.08);
  border-radius: 10px;
  padding: 12px 14px;
  width: 100%;
  background: rgba(0, 0, 0, 0.15);
}

.deploy-group--dashed {
  border: 1.5px dashed rgba(94, 234, 212, 0.14);
  background: rgba(94, 234, 212, 0.02);
}

.deploy-group-label {
  font-family: 'Playfair Display', serif;
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(241, 240, 245, 0.4);
  margin-bottom: 8px;
  text-align: center;
}

.deploy-group-nodes {
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Individual node badge */
.deploy-node {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 500;
  border: 1px solid;
  white-space: nowrap;
  transition: transform 0.2s;
}

.deploy-node:hover { transform: translateY(-1px); }

.deploy-node--user    { background: rgba(168, 85, 247, 0.10); border-color: rgba(168, 85, 247, 0.30); color: #6D28D9; }
.deploy-node--cdn     { background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.30); color: #B45309; }
.deploy-node--compute { background: rgba(16, 185, 129, 0.10); border-color: rgba(16, 185, 129, 0.30); color: #047857; font-family: 'JetBrains Mono', monospace; font-size: 10px; }
.deploy-node--data    { background: rgba(59, 130, 246, 0.10); border-color: rgba(59, 130, 246, 0.30); color: #1D4ED8; }
.deploy-node--ci      { background: rgba(236, 72, 153, 0.10); border-color: rgba(236, 72, 153, 0.30); color: #BE185D; font-size: 10px; }
.deploy-node--secret  { background: rgba(239, 68, 68, 0.10);  border-color: rgba(239, 68, 68, 0.30);  color: #B91C1C; }

/* Arrow connector */
.deploy-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3px 0;
}

.deploy-arrow-line {
  width: 2px;
  height: 14px;
  background: rgba(94, 234, 212, 0.18);
}

.deploy-arrow-tip {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid rgba(94, 234, 212, 0.2);
}

.deploy-arrow-label {
  font-size: 9px;
  font-family: 'JetBrains Mono', monospace;
  color: rgba(241, 240, 245, 0.28);
  margin-top: 2px;
}

/* Two-column split */
.deploy-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: 100%;
}

.deploy-split .deploy-group-nodes {
  flex-direction: column;
}

/* ── Responsive overrides ────────────────────────────────── */
@media (max-width: 1100px) {
  .arch-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .arch-panel { padding: 20px 16px; }
  .arch-frame { padding: 16px 12px; }
  .arch-services { flex-direction: column; align-items: center; }
  .arch-svc { max-width: 100%; }
  .deploy-split { grid-template-columns: 1fr; }
}
/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 960px) {
  .tr-sidebar {
    display: none;
  }

  .tr-main {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .tr-hero {
    padding: 120px var(--space-md) var(--space-2xl);
  }

  .tr-hero-stats {
    gap: var(--space-xl);
    flex-wrap: wrap;
  }

  .tr-stat-number {
    font-size: 1.75rem;
  }

  .tr-pipeline {
    flex-direction: column;
  }

  .tr-pipeline-arrow {
    transform: rotate(90deg);
    justify-content: center;
  }

  .tr-feature-grid {
    grid-template-columns: 1fr;
  }

  .tr-entity-grid {
    grid-template-columns: 1fr;
  }

  .tr-decisions-grid {
    grid-template-columns: 1fr;
  }

  .tr-arch-nodes {
    flex-direction: column;
    align-items: center;
  }

  .tr-infra-nodes {
    flex-direction: column;
    align-items: center;
  }

  .tr-infra-node {
    min-width: 200px;
  }

  .tr-card {
    padding: var(--space-md);
  }
}

@media (max-width: 480px) {
  .tr-hero-title {
    font-size: 2rem;
  }

  .tr-hero-stats {
    gap: var(--space-lg);
  }

  .tr-section-title {
    font-size: 1.4rem;
  }
}