/* ═══════════════════════════════════════════════════════════════
   QUANTOS — Architecture diagram
   Replaces: .cycle (rail+panel) and .pat (claim grid) with one
   canonical SVG architecture + a unified detail/log panel.
   ═══════════════════════════════════════════════════════════════ */

/* ── Section shell ──────────────────────────────────────────── */
.arch {
  padding: 80px 0 80px;
  background:
    radial-gradient(800px 400px at 10% 0%, rgba(34,197,94,0.035), transparent 60%),
    #050506;
  position: relative;
}
.arch::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent 90%);
}
.arch__head {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: end;
  margin-bottom: 48px;
}
@media (max-width: 1100px) { .arch__head { grid-template-columns: 1fr; gap: 28px; } }

.arch__h {
  font-size: clamp(32px, 3.6vw, 64px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.04;
  color: var(--ink-1);
  margin: 16px 0 0;
  text-wrap: balance;
}
.arch__h em { font-style: normal; color: var(--em); }
.arch__sub {
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 52ch;
}
.arch__sub b { color: var(--ink-1); font-weight: 600; }
.arch__sub em { color: var(--em); font-style: normal; }

/* ── Diagram frame ──────────────────────────────────────────── */
.arch__frame {
  position: relative;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: linear-gradient(180deg, #0a0a0b, #07070a);
  padding: 24px 24px 20px;
  box-shadow: 0 40px 120px -50px rgba(0,0,0,0.9);
  overflow: hidden;
}
.arch__frame::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(400px 280px at 60% 50%, rgba(34,197,94,0.04), transparent 70%);
  pointer-events: none;
}

/* Chrome strip at top of frame — like a schematic legend bar */
.arch__chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 4px 4px 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.arch__chrome-left {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--ink-4);
}
.arch__chrome-title {
  color: var(--ink-1);
  font-weight: 600;
}
.arch__chrome-title::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--em);
  box-shadow: 0 0 0 3px rgba(34,197,94,0.18), 0 0 10px rgba(34,197,94,0.8);
  margin-right: 8px;
  vertical-align: middle;
  animation: archLive 2.2s ease-in-out infinite;
}
@keyframes archLive {
  0%,100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.arch__chrome-cycle {
  color: var(--em);
}
.arch__chrome-right {
  display: flex; align-items: center; gap: 20px;
  color: var(--ink-4);
}
.arch__chrome-clock {
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}
.arch__chrome-clock b { color: var(--em); font-weight: 600; }

/* Legend row */
.arch__legend {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding: 0 4px;
  margin-top: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.arch__legend-item { display: inline-flex; align-items: center; gap: 8px; }
.arch__legend-swatch {
  display: inline-block;
  width: 22px; height: 2px;
}
.arch__legend-swatch--fwd  { background: #22c55e; }
.arch__legend-swatch--fb   { background: #22c55e; background-image: linear-gradient(90deg, #22c55e 50%, transparent 50%); background-size: 6px 2px; }
.arch__legend-swatch--audit{ background: rgba(255,255,255,0.3); }
.arch__legend-swatch--gate { background: #f97316; height: 6px; width: 6px; transform: rotate(45deg); margin-top: 0; }
.arch__legend-swatch--store{
  width: 10px; height: 14px;
  border-radius: 6px / 3px;
  border: 1.4px solid rgba(255,255,255,0.35);
  background: #0a0a0b;
}

/* ── SVG stage ──────────────────────────────────────────────── */
.arch__svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 700px;
  font-family: 'JetBrains Mono', monospace;
  user-select: none;
}

/* Block common */
.arch__block rect,
.arch__cylinder path,
.arch__cylinder ellipse {
  transition: fill 200ms ease, stroke 200ms ease, filter 200ms ease;
}
.arch__block { cursor: pointer; }
.arch__block-title {
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  fill: var(--ink-1);
  pointer-events: none;
}
.arch__block-sub {
  font-size: 8.5px; font-weight: 500;
  letter-spacing: 0.06em;
  fill: var(--ink-4);
  pointer-events: none;
}
.arch__block rect {
  fill: #0e0e10;
  stroke: #2a2a2e;
  stroke-width: 1;
}
.arch__block:hover rect {
  stroke: rgba(34,197,94,0.6);
  fill: #121316;
}
.arch__block.is-active rect {
  stroke: var(--em);
  stroke-width: 1.4;
  fill: #0f1812;
  filter: drop-shadow(0 0 14px rgba(34,197,94,0.35));
}
.arch__block.is-pulsing rect {
  animation: archPulse 1.2s ease-in-out infinite;
}
@keyframes archPulse {
  0%, 100% { filter: drop-shadow(0 0 10px rgba(34,197,94,0.25)); }
  50%      { filter: drop-shadow(0 0 22px rgba(34,197,94,0.7)); }
}

/* Cylinder (data store) */
.arch__cylinder { cursor: pointer; }
.arch__cylinder path,
.arch__cylinder ellipse {
  fill: #0a0a0b;
  stroke: rgba(255,255,255,0.35);
  stroke-width: 1;
}
.arch__cylinder:hover path,
.arch__cylinder:hover ellipse {
  stroke: rgba(34,197,94,0.55);
}
.arch__cylinder.is-active path,
.arch__cylinder.is-active ellipse {
  stroke: var(--em);
  stroke-width: 1.4;
}
.arch__cylinder text { fill: var(--ink-2); font-size: 9.5px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; pointer-events: none; }
.arch__cylinder.is-active text { fill: var(--ink-1); }

/* Source & sink chips */
.arch__chip { cursor: default; }
.arch__chip rect {
  fill: transparent;
  stroke: rgba(255,255,255,0.18);
  stroke-dasharray: 3 2;
  stroke-width: 0.8;
}
.arch__chip text {
  fill: var(--ink-4);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  pointer-events: none;
}

/* Gate (contamination) */
.arch__gate { cursor: pointer; }
.arch__gate polygon {
  fill: #0a0a0b;
  stroke: #f97316;
  stroke-width: 1.2;
  transition: all 200ms ease;
}
.arch__gate:hover polygon { fill: rgba(249,115,22,0.12); }
.arch__gate.is-active polygon {
  fill: rgba(249,115,22,0.14);
  filter: drop-shadow(0 0 12px rgba(249,115,22,0.5));
}
.arch__gate text { fill: #f97316; font-size: 8px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; pointer-events: none; }

/* Arrows */
.arch__arrow {
  fill: none;
  stroke: #22c55e;
  stroke-width: 1.2;
  opacity: 0.55;
  transition: opacity 200ms ease, stroke-width 200ms ease;
}
.arch__arrow--fb {
  stroke-dasharray: 5 4;
}
.arch__arrow--audit {
  stroke: rgba(255,255,255,0.28);
  stroke-width: 0.9;
  stroke-dasharray: 2 3;
}
.arch__arrow--loopback {
  stroke: var(--em);
  stroke-width: 1.2;
  opacity: 0.5;
  stroke-dasharray: 6 5;
}
.arch__arrow-label {
  font-size: 8.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  fill: var(--ink-4);
  pointer-events: none;
}
.arch__arrow-label--em { fill: var(--em); }

/* Control envelope (dashed frame around Forecast/Risk/Action) */
.arch__envelope {
  fill: rgba(34,197,94,0.025);
  stroke: var(--em);
  stroke-width: 0.9;
  stroke-dasharray: 4 3;
  opacity: 0.6;
}
.arch__envelope-label {
  fill: var(--em);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  pointer-events: none;
}
.arch__envelope-sub {
  fill: var(--ink-4);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  pointer-events: none;
}

/* Pipeline band labels (FORWARD / FEEDBACK) */
.arch__band {
  fill: var(--ink-5);
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  pointer-events: none;
}

/* Animated packet dot */
.arch__packet {
  fill: var(--em);
  filter: drop-shadow(0 0 6px rgba(34,197,94,0.9));
}

/* ── Detail + log panel ─────────────────────────────────────── */
.arch__detail {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: linear-gradient(180deg, #0a0a0b, #070709);
  overflow: hidden;
}
@media (max-width: 1000px) { .arch__detail { grid-template-columns: 1fr; } }

.arch__detail-left {
  padding: 32px 36px;
  border-right: 1px solid var(--line);
}
@media (max-width: 1000px) {
  .arch__detail-left { border-right: none; border-bottom: 1px solid var(--line); }
}
.arch__detail-kind {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--em);
  margin-bottom: 10px;
}
.arch__detail-title {
  font-size: clamp(22px, 2vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink-1);
  margin: 0 0 14px;
  line-height: 1.2;
  text-wrap: balance;
}
.arch__detail-plain {
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--ink-2);
  margin: 0 0 18px;
}
.arch__detail-plain b { color: var(--ink-1); font-weight: 600; }
.arch__detail-plain em { color: var(--em); font-style: normal; }
.arch__detail-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 20px;
}
.arch__detail-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-3);
  background: rgba(255,255,255,0.02);
}
.arch__detail-claim {
  margin-top: 18px;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #050506;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--ink-2);
}
.arch__detail-claim-label {
  display: block;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--em);
  margin-bottom: 8px;
}
.arch__detail-claim b { color: var(--ink-1); font-weight: 600; }
.arch__detail-claim em { color: var(--em); font-style: normal; }

/* Right half — terminal log */
.arch__log {
  padding: 20px 24px 28px;
  background: #050506;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  line-height: 1.65;
  color: var(--ink-2);
  display: flex; flex-direction: column;
  gap: 10px;
  min-height: 360px;
}
.arch__log-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.arch__log-head-title {
  color: var(--em);
  font-weight: 700;
}
.arch__log-list { display: flex; flex-direction: column; gap: 4px; }
.arch__log-line {
  display: grid;
  grid-template-columns: 50px 80px 1fr;
  gap: 14px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 300ms ease, transform 300ms ease;
}
.arch__log-line.in { opacity: 1; transform: translateY(0); }
.arch__log-line b { color: var(--ink-1); font-weight: 600; }
.arch__log-line em { color: var(--em); font-style: normal; }
.arch__log-t { color: var(--ink-5); }
.arch__log-tag {
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 10px;
}
.arch__log-tag--em    { color: var(--em); }
.arch__log-tag--risk  { color: #ef4444; }
.arch__log-tag--amber { color: #f59e0b; }
.arch__log-tag--mute  { color: var(--ink-5); }
.arch__log-msg { color: var(--ink-2); }

/* ── Controls strip ─────────────────────────────────────────── */
.arch__controls {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 14px 22px;
  border: 1px solid var(--line-2);
  border-top: none;
  border-radius: 0 0 14px 14px;
  background: #050506;
  margin-top: -1px;
}
.arch__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 16px;
  border-radius: 8px;
  border: 1px solid var(--em);
  background: var(--em);
  color: #050506;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 160ms ease;
}
.arch__btn:hover { filter: brightness(1.08); }
.arch__btn.ghost {
  background: transparent;
  border-color: var(--line-2);
  color: var(--ink-2);
}
.arch__btn.ghost:hover { border-color: var(--em); color: var(--em); }
.arch__meta {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.arch__meta b { color: var(--ink-2); font-weight: 600; }
.arch__speed { display: inline-flex; border: 1px solid var(--line-2); border-radius: 8px; overflow: hidden; }
.arch__speed button {
  height: 32px; padding: 0 12px;
  border: none;
  background: transparent;
  color: var(--ink-4);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}
.arch__speed button.active { background: rgba(34,197,94,0.12); color: var(--em); }