/* Architecture diagram page styles. Uses brand color variables from branded.css. */

* { box-sizing: border-box; }

:root {
  --ink: #0B2A44;
  --ink-soft: #506578;
  --line: #D6DEE6;
  --surface: #FFFFFF;
  --surface-soft: #F7FAFC;
  --inbound: #E25B5B;
  --inbound-soft: #FBE4E4;
  --outbound: var(--brand-classic-green);
  --outbound-soft: #DCFCEE;
  --bus: var(--brand-dark-green);
  --shadow-sm: 0 1px 2px rgba(11, 42, 68, 0.06);
  --shadow-md: 0 6px 18px rgba(11, 42, 68, 0.08);
  --shadow-lg: 0 16px 40px rgba(11, 42, 68, 0.10);
}

body {
  margin: 0;
  background:
    radial-gradient(1100px 600px at 90% -10%, rgba(0, 200, 149, 0.08), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(9, 59, 95, 0.07), transparent 60%),
    #F1F4F7;
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 1360px;
  margin: 0 auto;
  padding: 36px 32px 72px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 0 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}
.topbar img.logo { height: 34px; }
.topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
}
.demo-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brand-classic-green);
  color: #ffffff;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.02em;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.demo-cta:hover {
  background: var(--brand-dark-green);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.demo-cta-arrow { font-size: 15px; line-height: 1; }
.topbar .badge {
  background: var(--gradient-bright-classic);
  color: var(--brand-dark-blue);
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  box-shadow: var(--shadow-sm);
}

h1 {
  font-family: 'NewSpirit', Georgia, serif;
  color: var(--brand-dark-blue);
  font-size: 38px;
  letter-spacing: -0.01em;
  margin: 4px 0 10px;
}
h2 {
  font-family: 'NewSpirit', Georgia, serif;
  color: var(--brand-deep-blue);
  font-size: 22px;
  margin: 40px 0 14px;
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.section-head h2 { margin-bottom: 4px; }
.detail-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-dark-green);
  text-decoration: none;
  letter-spacing: 0.02em;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--brand-classic-green);
  background: #ECFFF7;
  transition: background 0.15s ease, color 0.15s ease;
}
.detail-link:hover {
  background: var(--brand-classic-green);
  color: #ffffff;
}
p.lead {
  font-size: 16px;
  color: #324A60;
  margin: 0 0 18px;
  max-width: 900px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
}
.card h3 {
  margin: 0 0 6px;
  font-size: 12px;
  color: var(--brand-dark-green);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}
.card p { margin: 0; font-size: 14px; color: #324A60; }

/* Diagram canvas */
.diagram {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 28px 22px;
  box-shadow: var(--shadow-md);
  position: relative;
}
.diagram svg.canvas {
  width: 100%;
  height: auto;
  display: block;
}

/* SVG-side typography */
.t-title  { font-family: 'NewSpirit', Georgia, serif; font-size: 17px; font-weight: 600; fill: var(--brand-dark-blue); }
.t-title.on-dark { fill: var(--brand-bright-green); }
.t-name   { font-family: 'NewSpirit', Georgia, serif; font-size: 14px; fill: var(--brand-dark-blue); }
.t-sub    { font-size: 11px; fill: var(--ink-soft); }
.t-sub.on-dark { fill: var(--brand-sky-blue); }
.t-eyebrow{
  font-size: 10px; fill: var(--brand-dark-green); letter-spacing: 0.18em;
  font-weight: 700; text-transform: uppercase;
}
.t-eyebrow.on-dark { fill: var(--brand-bright-green); }
.t-mono   { font-family: 'JetBrains Mono', 'SF Mono', 'Courier New', monospace; font-size: 11px; fill: var(--brand-dark-blue); }
.t-edge   { font-size: 10.5px; fill: var(--ink-soft); letter-spacing: 0.04em; }
.t-edge.inbound { fill: var(--inbound); }
.t-edge.outbound { fill: var(--brand-dark-green); }

/* Node surfaces */
.surface { fill: var(--surface); stroke: var(--line); stroke-width: 1; filter: url(#cardShadow); }
.surface.accent  { stroke: var(--brand-classic-green); stroke-width: 1.5; }
.surface.feature { stroke: var(--brand-classic-green); stroke-width: 1.5; fill: #F4FFFB; }
.surface.broker  { fill: var(--brand-dark-blue); stroke: var(--brand-deep-blue); }
.surface.dashed  { fill: var(--surface-soft); stroke: var(--brand-dark-green); stroke-dasharray: 6 5; stroke-width: 1.25; filter: none; }

.icon-tile { fill: var(--surface-soft); stroke: var(--line); }
.icon-tile.on-dark { fill: rgba(255,255,255,0.08); stroke: rgba(255,255,255,0.18); }
.icon-tile.accent  { fill: #ECFFF7; stroke: var(--brand-classic-green); }

/* Topic pills */
.pill {
  fill: var(--surface);
  stroke: var(--brand-classic-green);
  stroke-width: 1.25;
}
.pill.inbound { stroke: var(--inbound); }

/* Edges */
.edge {
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.edge.inbound  { stroke: var(--inbound); }
.edge.outbound { stroke: var(--outbound); }
.edge.bus      { stroke: var(--bus); stroke-dasharray: 5 4; }

/* Legend */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  color: #324A60;
}
.legend code {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 11.5px;
}
.legend .swatch {
  display: inline-block;
  width: 28px;
  height: 3px;
  vertical-align: middle;
  margin-right: 8px;
  border-radius: 2px;
}
.legend .swatch.inbound  { background: var(--inbound); }
.legend .swatch.outbound { background: var(--outbound); }
.legend .swatch.bus {
  background: repeating-linear-gradient(to right, var(--bus) 0 6px, transparent 6px 10px);
}

/* Flow steps */
.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-top: 16px;
}
.flow .step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 16px 14px;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.flow .step .n {
  position: absolute;
  top: -12px;
  left: -12px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-bright-classic);
  color: var(--brand-dark-blue);
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.flow .step h4 { margin: 4px 0 6px; font-size: 13px; color: var(--brand-deep-blue); }
.flow .step p { margin: 0; font-size: 12px; color: #324A60; }

footer {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
footer code {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 4px;
}

/* Runbook page */
.back-link {
  display: inline-block;
  margin: 4px 0 12px;
  font-size: 13px;
  color: var(--brand-dark-green);
  text-decoration: none;
  font-weight: 600;
}
.back-link:hover { color: var(--brand-dark-blue); }

.runbook {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 8px 32px 28px;
  box-shadow: var(--shadow-md);
  margin-top: 8px;
}
.runbook h2 {
  margin-top: 32px;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 8px;
}
.runbook-list {
  padding-left: 22px;
  margin: 8px 0 18px;
  color: #324A60;
}
.runbook-list > li {
  margin: 10px 0;
  font-size: 14px;
  line-height: 1.6;
}
.runbook-list p { margin: 6px 0; }
.runbook-list strong { color: var(--brand-dark-blue); }
.runbook code {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--brand-dark-blue);
}
.runbook pre {
  background: var(--brand-dark-blue);
  color: #E6F4FF;
  padding: 12px 14px;
  border-radius: 10px;
  overflow-x: auto;
  font-size: 12.5px;
  line-height: 1.5;
  margin: 8px 0;
}
.runbook pre code {
  background: transparent;
  border: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}

@media (max-width: 1000px) {
  .cards, .flow { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .cards, .flow { grid-template-columns: 1fr; }
}