/* ==========================================================================
   SMART-TA Architecture Diagram — Blueprint aesthetic
   Light + dark themes. Designed for 1920×1080 hero artboards.
   ========================================================================== */

:root {
  --bp-bg: #0a0f1d;
  --bp-bg-2: #0d1827;
  --bp-grid: rgba(120, 180, 220, 0.022);
  --bp-grid-major: rgba(120, 180, 220, 0.06);
  --bp-text: #eaf4f8;
  --bp-text-2: #c4d4e4;
  --bp-muted: #7a9ab8;
  --bp-line: rgba(180, 210, 235, 0.16);
  --bp-line-strong: rgba(180, 210, 235, 0.28);
  --bp-card: rgba(255, 255, 255, 0.025);
  --bp-card-hover: rgba(255, 255, 255, 0.05);

  --bp-green: #4aba78;
  --bp-green-soft: rgba(74, 186, 120, 0.16);
  --bp-blue: #5cb8ff;
  --bp-blue-soft: rgba(92, 184, 255, 0.16);
  --bp-indigo: #98a3d7;
  --bp-indigo-soft: rgba(152, 163, 215, 0.18);
  --bp-teal: #5cd0cb;
  --bp-teal-soft: rgba(92, 208, 203, 0.16);
  --bp-amber: #e3ad60;
  --bp-amber-soft: rgba(227, 173, 96, 0.18);
  --bp-amber-strong: rgba(227, 173, 96, 0.4);

  --font-display: 'DM Sans', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'DM Mono', 'JetBrains Mono', monospace;
}

[data-theme="light"] {
  --bp-bg: #f4f7fb;
  --bp-bg-2: #eaf0f6;
  --bp-grid: rgba(15, 34, 64, 0.025);
  --bp-grid-major: rgba(15, 34, 64, 0.06);
  --bp-text: #0f2240;
  --bp-text-2: #1b3a6b;
  --bp-muted: #5a7290;
  --bp-line: rgba(15, 34, 64, 0.16);
  --bp-line-strong: rgba(15, 34, 64, 0.32);
  --bp-card: rgba(255, 255, 255, 0.7);
  --bp-card-hover: rgba(255, 255, 255, 0.95);

  --bp-green: #1f8a5b;
  --bp-green-soft: rgba(31, 138, 91, 0.1);
  --bp-blue: #1e7ec8;
  --bp-blue-soft: rgba(30, 126, 200, 0.1);
  --bp-indigo: #4357ad;
  --bp-indigo-soft: rgba(67, 87, 173, 0.1);
  --bp-teal: #2d6e7e;
  --bp-teal-soft: rgba(45, 110, 126, 0.1);
  --bp-amber: #b97817;
  --bp-amber-soft: rgba(185, 120, 23, 0.1);
  --bp-amber-strong: rgba(185, 120, 23, 0.25);
}

/* ==========================================================================
   Canvas + page chrome
   ========================================================================== */

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bp-bg);
  color: var(--bp-text);
  transition: background 0.3s, color 0.3s;
}

.page-chrome {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px;
  background: rgba(10, 15, 29, 0.7);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--bp-line);
}
[data-theme="light"] .page-chrome { background: rgba(244, 247, 251, 0.85); }

.chrome-brand { display: flex; align-items: center; gap: 14px; }
.chrome-mark {
  width: 36px; height: 36px; border-radius: 8px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #4aba78, #007f39);
  color: #fff; font-family: var(--font-display); font-weight: 700;
  box-shadow: 0 6px 16px rgba(74, 186, 120, 0.3);
}
.chrome-title { font-family: var(--font-display); font-weight: 600; font-size: 0.98rem; letter-spacing: 0.02em; }
.chrome-sub { font-family: var(--font-mono); font-size: 0.78rem; color: var(--bp-muted); letter-spacing: 0.1em; text-transform: uppercase; margin-left: 14px; padding-left: 14px; border-left: 1px solid var(--bp-line); }

.chrome-tools { display: flex; align-items: center; gap: 10px; }
.theme-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px;
  border: 1px solid var(--bp-line);
  background: var(--bp-card);
  color: var(--bp-text-2);
  font-family: var(--font-mono); font-size: 0.76rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.theme-pill:hover { background: var(--bp-card-hover); border-color: var(--bp-line-strong); }
.theme-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--bp-green); box-shadow: 0 0 8px var(--bp-green); }

/* ==========================================================================
   Blueprint canvas (shared by all variations)
   ========================================================================== */

.bp {
  position: relative;
  width: 100%; height: 100%;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(120,180,220,0.04), transparent 70%),
    var(--bp-bg);
  background-image:
    radial-gradient(circle, var(--bp-grid-major) 1px, transparent 1.2px);
  background-size: 80px 80px;
  background-position: 40px 40px;
  overflow: hidden;
  color: var(--bp-text);
  font-family: var(--font-body);
}
[data-theme="light"] .bp {
  background:
    radial-gradient(ellipse at 50% 30%, rgba(15,34,64,0.04), transparent 70%),
    var(--bp-bg);
  background-image:
    radial-gradient(circle, var(--bp-grid-major) 1px, transparent 1.2px);
  background-size: 80px 80px;
  background-position: 40px 40px;
}

/* Corner ticks — applied to .bp itself */
.bp::before, .bp::after,
.bp > .tick-tr, .bp > .tick-bl {
  content: ""; position: absolute; width: 28px; height: 28px;
  pointer-events: none;
}
.bp::before { top: 14px; left: 14px; border-top: 2px solid var(--bp-line-strong); border-left: 2px solid var(--bp-line-strong); }
.bp::after { bottom: 14px; right: 14px; border-bottom: 2px solid var(--bp-line-strong); border-right: 2px solid var(--bp-line-strong); }
.bp .tick-tr { top: 14px; right: 14px; border-top: 2px solid var(--bp-line-strong); border-right: 2px solid var(--bp-line-strong); }
.bp .tick-bl { bottom: 14px; left: 14px; border-bottom: 2px solid var(--bp-line-strong); border-left: 2px solid var(--bp-line-strong); }

/* Frame metadata strip — top of every variation */
.bp-frame {
  position: absolute; top: 26px; left: 56px; right: 56px;
  display: flex; align-items: baseline; justify-content: space-between;
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--bp-muted); letter-spacing: 0.14em; text-transform: uppercase;
  padding-bottom: 10px;
}
.bp-frame-meta { display: flex; gap: 28px; }
.bp-frame-meta span strong { color: var(--bp-text-2); font-weight: 600; margin-right: 6px; }
.bp-frame-id { font-weight: 600; color: var(--bp-text-2); }

/* Title block */
.bp-titleblock {
  position: absolute; top: 70px; left: 56px; right: 56px;
}
.bp-titleblock .eyebrow {
  display: inline-block; padding: 4px 12px;
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--bp-green); background: var(--bp-green-soft);
  border-radius: 4px;
}
.bp-titleblock h1 {
  margin: 12px 0 4px;
  font-family: var(--font-display); font-weight: 600;
  font-size: 2.2rem; line-height: 1.05; letter-spacing: -0.015em;
  color: var(--bp-text);
}
.bp-titleblock h1 em { font-style: normal; color: var(--bp-green); }
.bp-titleblock p { margin: 0; color: var(--bp-muted); font-size: 1rem; max-width: 720px; }

/* ==========================================================================
   Layer band — base styling (V1, V2 share)
   ========================================================================== */

.lyr {
  position: relative;
  border: 1px solid var(--bp-line);
  background: var(--bp-card);
  border-radius: 8px;
  padding: 10px 20px;
  transition: border-color 0.15s, background 0.15s;
}
.lyr:hover { border-color: var(--bp-line-strong); }

.lyr-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 10px;
}
.lyr-num {
  font-family: var(--font-mono); font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.12em; color: var(--bp-muted);
  padding: 3px 9px; border-radius: 4px;
  background: var(--bp-card);
  border: 1px solid var(--bp-line);
}
.lyr-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.15rem; color: var(--bp-text); letter-spacing: -0.005em;
}
.lyr-sub {
  margin-left: auto;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--bp-muted);
}
.lyr-accent { width: 4px; height: 22px; border-radius: 2px; margin-right: -4px; }
.acc-green { background: var(--bp-green); box-shadow: 0 0 8px var(--bp-green-soft); }
.acc-blue { background: var(--bp-blue); box-shadow: 0 0 8px var(--bp-blue-soft); }
.acc-indigo { background: var(--bp-indigo); box-shadow: 0 0 8px var(--bp-indigo-soft); }
.acc-teal { background: var(--bp-teal); box-shadow: 0 0 8px var(--bp-teal-soft); }
.acc-amber { background: var(--bp-amber); box-shadow: 0 0 10px var(--bp-amber-strong); }
.acc-gray { background: var(--bp-muted); }

/* Pills (capabilities inside layers) */
.cap-row { display: flex; flex-wrap: wrap; gap: 8px; }
.cap {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--bp-line);
  border-radius: 6px;
  background: var(--bp-card);
  font-size: 0.86rem; font-weight: 500;
  color: var(--bp-text-2);
}
.cap-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.dot-green { background: var(--bp-green); }
.dot-blue { background: var(--bp-blue); }
.dot-indigo { background: var(--bp-indigo); }
.dot-teal { background: var(--bp-teal); }
.dot-amber { background: var(--bp-amber); }
.dot-gray { background: var(--bp-muted); }

/* Connector ticks between layers */
.connector {
  display: flex; justify-content: center;
  padding: 0;
}
.connector::before {
  content: ""; width: 2px; height: 7px;
  background: linear-gradient(180deg, var(--bp-line-strong), var(--bp-line));
}

/* ==========================================================================
   DLT highlight ribbon
   ========================================================================== */

.dlt-band {
  border-color: var(--bp-amber-strong);
  background: linear-gradient(180deg, var(--bp-amber-soft), transparent 70%), var(--bp-card);
  box-shadow: 0 0 0 1px var(--bp-amber-soft) inset, 0 14px 40px rgba(227, 173, 96, 0.08);
}
.dlt-flag {
  position: absolute; top: 22px; right: 24px;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 12px; border-radius: 4px;
  background: var(--bp-amber); color: #0a0f1d;
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.15em; text-transform: uppercase;
  box-shadow: 0 4px 14px rgba(227, 173, 96, 0.3);
}
.dlt-flag::before { content: "◆"; font-size: 0.6rem; }

/* Operational vs Immutable split (used inside DLT layer) */
.dual-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px; align-items: stretch;
}
.dual-side {
  padding: 11px 14px;
  border: 1px solid var(--bp-line);
  border-radius: 6px;
  background: var(--bp-card);
}
.dual-label {
  font-family: var(--font-mono); font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bp-muted); margin-bottom: 8px;
}
.dual-tech {
  font-family: var(--font-display); font-size: 0.98rem; font-weight: 600;
  color: var(--bp-text); margin-bottom: 4px;
}
.dual-tech.t-blue { color: var(--bp-blue); }
.dual-tech.t-indigo { color: var(--bp-indigo); }
.dual-tech.t-amber { color: var(--bp-amber); }
.dual-desc {
  font-size: 0.84rem; color: var(--bp-muted); line-height: 1.45;
  margin-bottom: 7px;
}
.dual-desc:last-child { margin-bottom: 0; }

.dual-bridge {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-width: 120px; gap: 8px;
}
.dual-bridge-line {
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--bp-blue), var(--bp-amber));
  opacity: 0.6;
}
.dual-bridge-gate {
  display: grid; place-items: center;
  width: 58px; height: 58px; border-radius: 12px;
  background: linear-gradient(135deg, #4aba78, #007f39);
  color: #fff; font-family: var(--font-display); font-weight: 700;
  font-size: 0.58rem; letter-spacing: 0.08em; text-align: center; line-height: 1.2;
  box-shadow: 0 10px 26px rgba(74, 186, 120, 0.35), 0 0 0 4px rgba(74, 186, 120, 0.08);
}
.dual-bridge-label {
  font-family: var(--font-mono); font-size: 0.66rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--bp-muted); text-align: center;
}

/* ==========================================================================
   Annotations — right-side margin notes
   ========================================================================== */

.anno {
  border-left: 2px solid var(--bp-green);
  padding: 4px 0 4px 14px;
  margin-bottom: 16px;
}
.anno-label {
  font-family: var(--font-mono); font-size: 0.66rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bp-green); margin-bottom: 4px;
}
.anno-text {
  font-size: 0.82rem; color: var(--bp-text-2); line-height: 1.5;
}

/* ==========================================================================
   Footer / legend
   ========================================================================== */

.bp-footer {
  position: absolute; bottom: 26px; left: 56px; right: 56px;
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--bp-line);
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--bp-muted); letter-spacing: 0.12em; text-transform: uppercase;
}
.bp-legend { display: flex; gap: 20px; }
.bp-legend-item { display: inline-flex; align-items: center; gap: 7px; }

/* Page wrapper — pads the canvas inside the host page */
.page-canvas {
  padding: 24px;
  min-height: calc(100vh - 72px);
}

/* ==========================================================================
   V1 — Stacked blueprint specific
   ========================================================================== */

.v1-grid {
  position: absolute;
  top: 198px; left: 56px; right: 56px; bottom: 60px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 32px;
  align-items: stretch;
}

.v1-stack { display: grid; gap: 0; align-content: start; }

/* Layer 03 inner three-column grid */
.v1-l3 {
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.8fr;
  gap: 14px;
}
.v1-l3-col {
  padding: 10px 14px;
  border-left: 2px solid var(--bp-line);
  background: var(--bp-card);
  border-radius: 4px;
}
.v1-l3-col:nth-child(1) { border-left-color: var(--bp-blue); }
.v1-l3-col:nth-child(2) { border-left-color: var(--bp-indigo); }
.v1-l3-col:nth-child(3) { border-left-color: var(--bp-teal); }
.v1-l3-title {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--bp-text-2); margin-bottom: 10px;
}

/* Right column */
.v1-side {
  display: flex; flex-direction: column; gap: 22px;
  align-self: stretch;
}
.v1-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-bottom: 6px;
}
.v1-stat {
  padding: 14px 12px;
  border: 1px solid var(--bp-line);
  border-radius: 6px;
  background: var(--bp-card);
}
.v1-stat strong {
  display: block;
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.9rem; line-height: 1; color: var(--bp-green);
  margin-bottom: 6px;
}
.v1-stat span {
  font-size: 0.76rem; color: var(--bp-muted); line-height: 1.45;
}
.v1-annos { display: flex; flex-direction: column; gap: 0; }

.v1-deploy {
  margin-top: 4px;
  display: flex; align-items: center; gap: 18px;
  padding: 10px 18px;
  border: 1px dashed var(--bp-line-strong);
  border-radius: 6px;
  background: transparent;
}
.v1-deploy-label { display: flex; align-items: center; gap: 10px; flex-shrink: 0; padding-right: 16px; border-right: 1px solid var(--bp-line); }
.v1-deploy .cap-row { margin-left: auto; }

/* ==========================================================================
   V2 — Cross-section with platform spine
   ========================================================================== */

.v2-grid {
  position: absolute;
  top: 210px; left: 56px; right: 56px; bottom: 72px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 28px;
  align-items: stretch;
}

.v2-pipeline { display: flex; flex-direction: column; gap: 0; }
.v2-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.v2-pair .lyr { padding: 14px 18px; }
.v2-pair .cap-col { display: flex; flex-direction: column; gap: 6px; }

.v2-l3 {
  display: grid;
  grid-template-columns: 1.5fr 1fr 0.85fr;
  gap: 12px;
}
.v2-l3-col {
  padding: 10px 14px;
  border-left: 2px solid var(--bp-line);
  background: var(--bp-card);
  border-radius: 4px;
}
.v2-l3-col:nth-child(1) { border-left-color: var(--bp-blue); }
.v2-l3-col:nth-child(2) { border-left-color: var(--bp-indigo); }
.v2-l3-col:nth-child(3) { border-left-color: var(--bp-teal); }

.v2-deploy {
  margin-top: 10px;
  display: flex; align-items: center; gap: 18px;
  padding: 12px 18px;
  border: 1px dashed var(--bp-line-strong);
  border-radius: 6px;
  background: transparent;
}
.v2-deploy-head { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.v2-deploy .cap-row { margin-left: auto; }

/* Spine (right column) */
.v2-spine {
  position: relative;
  display: flex; flex-direction: column;
  padding: 18px 20px;
  border: 1px solid var(--bp-teal-soft);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--bp-teal-soft) 0%, transparent 35%), var(--bp-card);
}
.v2-spine-head {
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--bp-line);
  margin-bottom: 14px;
}
.v2-spine-head .lyr-num {
  font-size: 0.74rem;
}
.v2-spine-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.15rem; color: var(--bp-teal);
}

.v2-spine-rail { display: flex; flex-direction: column; gap: 12px; flex: 1; }
.v2-spine-item {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 10px 12px;
  border: 1px solid var(--bp-line);
  border-radius: 6px;
  background: var(--bp-card);
}
.v2-spine-icon {
  width: 34px; height: 34px; border-radius: 6px;
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700;
  font-size: 0.78rem;
  border: 1px solid var(--bp-teal-soft);
  flex-shrink: 0;
}
.v2-spine-name { font-family: var(--font-display); font-weight: 600; font-size: 0.95rem; color: var(--bp-text); }
.v2-spine-desc { font-size: 0.78rem; color: var(--bp-muted); margin-top: 2px; line-height: 1.45; }

.v2-spine-ai {
  margin-top: 6px;
  padding: 12px 14px;
  border: 1px solid var(--bp-green-soft);
  border-radius: 6px;
  background: var(--bp-green-soft);
}
.v2-spine-ai-head {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600;
  color: var(--bp-green); font-size: 0.95rem;
  margin-bottom: 6px;
}
.v2-spine-ai-dot {
  display: grid; place-items: center;
  width: 26px; height: 26px; border-radius: 5px;
  background: var(--bp-green); color: #0a0f1d;
  font-size: 0.66rem; font-weight: 700; letter-spacing: 0.05em;
}
.v2-spine-ai-desc { font-size: 0.78rem; color: var(--bp-text-2); line-height: 1.5; }
.v2-spine-ai-desc strong { color: var(--bp-green); font-weight: 600; }

/* Tie marks between spine and pipeline columns */
.v2-spine-ties {
  position: absolute;
  left: -18px;
  top: 84px;
  bottom: 30px;
  width: 18px;
  display: flex; flex-direction: column; justify-content: space-around;
  pointer-events: none;
}
.v2-spine-ties span {
  width: 18px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--bp-teal-soft) 30%, var(--bp-teal));
}
/* ==========================================================================
   V3 — DLT Centerpiece (app stack → flowing events → dual-layer hero)
   ========================================================================== */

/* Platform overhead banner */
.v3-overhead {
  position: absolute;
  top: 210px; left: 56px; right: 56px;
  display: flex; align-items: center; gap: 18px;
  padding: 12px 18px;
  border: 1px solid var(--bp-teal-soft);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--bp-teal-soft), transparent 60%), var(--bp-card);
}
.v3-overhead-label {
  display: flex; align-items: center; gap: 10px;
  flex-shrink: 0; padding-right: 16px;
  border-right: 1px solid var(--bp-line);
}
.v3-overhead-title {
  font-family: var(--font-display); font-weight: 600;
  color: var(--bp-teal); font-size: 1.05rem;
}
.v3-overhead-items { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
.v3-oh-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--bp-line); border-radius: 6px;
  background: var(--bp-card);
  font-size: 0.86rem; font-weight: 500; color: var(--bp-text-2);
}
.v3-oh-ai {
  border-color: var(--bp-green-soft);
  background: var(--bp-green-soft);
  color: var(--bp-text);
}
.v3-oh-ai-glyph {
  display: grid; place-items: center;
  width: 18px; height: 18px; border-radius: 4px;
  background: var(--bp-green); color: #0a0f1d;
  font-size: 0.6rem; font-weight: 700; letter-spacing: 0.05em;
}

/* Main 3-column hero grid */
.v3-grid {
  position: absolute;
  top: 288px; left: 56px; right: 56px; bottom: 148px;
  display: grid;
  grid-template-columns: 460px 70px minmax(0, 1fr);
  gap: 0;
  align-items: stretch;
}

/* LEFT — feeder stack */
.v3-feed { display: flex; flex-direction: column; gap: 0; }
.v3-feed-label {
  font-family: var(--font-mono); font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bp-muted); margin-bottom: 10px;
}
.v3-feed-card { padding: 12px 16px; }
.v3-feed-card .lyr-head { margin-bottom: 8px; }
.v3-arrow {
  height: 12px;
  display: flex; justify-content: center; align-items: center;
}
.v3-arrow::after {
  content: ""; width: 2px; height: 12px;
  background: linear-gradient(180deg, var(--bp-line-strong), var(--bp-blue));
}
.v3-feed-sub { display: flex; flex-direction: column; gap: 5px; margin-top: 2px; }
.v3-feed-subrow { padding: 3px 0; }
.v3-feed-subtitle {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 0.66rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--bp-text-2); margin-bottom: 5px;
}
.v3-feed-subrow .cap { font-size: 0.78rem; padding: 4px 8px; }
.v3-feed-subtitle-note {
  font-family: var(--font-mono); font-size: 0.58rem; font-weight: 500;
  letter-spacing: 0.08em; text-transform: none;
  color: var(--bp-muted); margin-left: 2px;
}
.v3-feed-subrow-connect .cap { font-size: 0.72rem; padding: 3px 7px; }
.v3-feed-subrow-connect .cap-row { gap: 5px; }

/* CENTRE — flowing event lines */
.v3-flow {
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 30px 0;
}
.v3-flow svg { width: 100%; height: 100%; }
.v3-flow-arrow {
  position: absolute;
  top: 50%; right: -1px;
  transform: translateY(-50%);
  width: 0; height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 11px solid var(--bp-amber);
  filter: drop-shadow(0 1px 3px rgba(227, 173, 96, 0.4));
}
.v3-flow-label, .v3-flow-sublabel {
  position: absolute;
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.18em; color: var(--bp-amber);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}
.v3-flow-label { top: 24px; }
.v3-flow-sublabel { bottom: 32px; color: var(--bp-muted); font-weight: 500; }

/* RIGHT — Hero panel */
.v3-hero {
  position: relative;
  display: flex; flex-direction: column;
  padding: 20px 24px;
  border: 1px solid var(--bp-amber-strong);
  border-radius: 12px;
  background:
    radial-gradient(ellipse at 50% 30%, var(--bp-amber-soft), transparent 60%),
    linear-gradient(180deg, var(--bp-amber-soft) 0%, transparent 40%),
    var(--bp-card);
  box-shadow: 0 0 0 1px var(--bp-amber-soft) inset, 0 18px 50px rgba(227, 173, 96, 0.1);
}
.v3-hero-head {
  display: flex; flex-direction: column; gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--bp-amber-strong);
  margin-bottom: 16px;
}
.v3-hero-head > div:first-child { display: flex; align-items: center; gap: 12px; }
.v3-hero-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.4rem; color: var(--bp-text); letter-spacing: -0.005em;
}

.v3-hero-pillars {
  display: grid;
  grid-template-columns: 1fr 170px 1fr;
  gap: 0;
  flex: 1;
  margin-bottom: 14px;
  min-height: 0;
}

/* Pillars */
.v3-pillar {
  padding: 16px 18px;
  border: 1px solid var(--bp-line);
  border-radius: 10px;
  background: var(--bp-card);
  display: flex; flex-direction: column;
  min-width: 0;
}
.v3-pillar-op { border-color: var(--bp-blue-soft); background: linear-gradient(180deg, var(--bp-blue-soft) 0%, transparent 50%), var(--bp-card); }
.v3-pillar-dlt { border-color: var(--bp-amber-strong); background: linear-gradient(180deg, var(--bp-amber-soft) 0%, transparent 50%), var(--bp-card); }

.v3-pillar-tag {
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--font-mono); font-size: 0.64rem; font-weight: 700;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--bp-blue); background: var(--bp-blue-soft);
  border-radius: 4px;
  align-self: flex-start;
  margin-bottom: 12px;
}
.v3-pillar-tag-amber { color: var(--bp-amber); background: var(--bp-amber-soft); }

.v3-pillar-name {
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.05rem; line-height: 1.15;
}
.v3-pillar-role {
  font-size: 0.78rem; color: var(--bp-muted); margin-top: 3px; line-height: 1.45;
}
.v3-pillar-divider {
  height: 1px; background: var(--bp-line);
  margin: 12px 0;
}
.v3-pillar-foot {
  margin-top: auto;
  display: flex; align-items: center; gap: 8px;
  padding-top: 12px;
  border-top: 1px dashed var(--bp-line);
  font-family: var(--font-mono); font-size: 0.66rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--bp-blue);
}
.v3-pillar-foot-amber { color: var(--bp-amber); }

/* Mini visualization (data examples / canonical record) */
.v3-mini {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--bp-line);
  border-radius: 6px;
  background: var(--bp-card-hover);
}
.v3-mini-amber {
  border-color: var(--bp-amber-strong);
  background: linear-gradient(180deg, var(--bp-amber-soft) 0%, transparent 70%), var(--bp-card-hover);
}
.v3-mini-tag {
  font-family: var(--font-mono); font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bp-muted); margin-bottom: 6px;
}
.v3-mini-amber .v3-mini-tag { color: var(--bp-amber); }

.v3-mini-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 3px;
  font-size: 0.78rem; color: var(--bp-text-2); line-height: 1.45;
}

.v3-mini-fields {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 5px;
}
.v3-mini-fields li {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 10px;
  align-items: baseline;
  font-size: 0.78rem;
}
.v3-mini-key {
  font-family: var(--font-display); font-weight: 700;
  font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--bp-amber);
}
.v3-mini-val {
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--bp-text-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.v3-mini-proof {
  padding-top: 5px;
  border-top: 1px dashed var(--bp-amber-strong);
  margin-top: 2px;
}
.v3-mini-proof .v3-mini-val { color: var(--bp-amber); font-weight: 600; }

/* The attestation gate (centre column inside hero) */
.v3-gate {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center;
  padding: 0 10px;
  position: relative;
}
.v3-gate-line {
  width: 2px; flex: 1;
  background: linear-gradient(180deg, var(--bp-blue), var(--bp-amber));
  opacity: 0.5;
}
.v3-gate-line-top { background: linear-gradient(180deg, transparent, var(--bp-blue)); }
.v3-gate-line-bot { background: linear-gradient(180deg, var(--bp-amber), transparent); }
.v3-gate-orb {
  width: 116px; height: 116px;
  border-radius: 50%;
  display: grid; place-items: center;
  background:
    radial-gradient(circle at 35% 30%, rgba(120,210,150,0.92), rgba(0,127,57,0.95) 60%, #003a17 100%);
  box-shadow:
    0 0 0 5px rgba(74, 186, 120, 0.08),
    0 0 0 12px rgba(74, 186, 120, 0.04),
    0 16px 36px rgba(74, 186, 120, 0.28);
  margin: 10px 0;
  position: relative;
  flex-shrink: 0;
}
.v3-gate-orb::before {
  content: ""; position: absolute; inset: -2px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.18);
  pointer-events: none;
}
.v3-gate-inner { text-align: center; color: #fff; }
.v3-gate-glyph {
  font-size: 1.2rem; line-height: 1;
  color: rgba(255,255,255,0.92);
  text-shadow: 0 0 12px rgba(255,255,255,0.4);
}
.v3-gate-name {
  font-family: var(--font-display); font-weight: 700;
  font-size: 0.66rem; letter-spacing: 0.12em;
  line-height: 1.2; margin-top: 6px;
}
.v3-gate-caption {
  font-family: var(--font-mono); font-size: 0.64rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--bp-muted); text-align: center; line-height: 1.5;
  margin: 4px 0;
}

/* Outcomes strip */
.v3-outcomes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--bp-line);
}
.v3-outcome {
  padding: 6px 12px;
  border-left: 2px solid var(--bp-amber);
}
.v3-outcome-label {
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bp-amber); margin-bottom: 3px;
}
.v3-outcome-text {
  font-size: 0.8rem; color: var(--bp-text-2); line-height: 1.4;
}

/* Deployment foundation strip */
.v3-foundation {
  position: absolute;
  bottom: 78px; left: 56px; right: 56px;
  display: flex; align-items: center; gap: 18px;
  padding: 10px 18px;
  border: 1px dashed var(--bp-line-strong);
  border-radius: 8px;
  background: transparent;
}
.v3-foundation-label {
  display: flex; align-items: center; gap: 10px;
  flex-shrink: 0; padding-right: 16px;
  border-right: 1px solid var(--bp-line);
}
.v3-foundation-items { display: flex; flex-wrap: wrap; gap: 8px; }

/* ==========================================================================
   Dual-DLT immutable state — two chains + bridge (V1 / V2 dual-side)
   ========================================================================== */

.dlt-chains { display: flex; flex-direction: column; gap: 5px; }

.dlt-chain {
  padding: 7px 11px;
  border: 1px solid var(--bp-line);
  border-radius: 6px;
  background: var(--bp-card);
}
.dlt-chain-cefi {
  border-color: var(--bp-amber-strong);
  background: linear-gradient(180deg, var(--bp-amber-soft), transparent 75%), var(--bp-card);
}
.dlt-chain-defi {
  border: 1px dashed var(--bp-indigo);
  background: linear-gradient(180deg, var(--bp-indigo-soft), transparent 75%), var(--bp-card);
}
.dlt-chain-head {
  display: flex; align-items: center; gap: 8px; margin-bottom: 5px;
}
.dlt-badge {
  font-family: var(--font-mono); font-size: 0.58rem; font-weight: 700;
  letter-spacing: 0.1em; padding: 2px 7px; border-radius: 3px; flex-shrink: 0;
}
.badge-cefi { background: var(--bp-amber); color: #0a0f1d; }
.badge-defi { background: var(--bp-indigo); color: #0a0f1d; }
.dlt-chain-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 0.92rem; color: var(--bp-text); letter-spacing: -0.005em;
}
.dlt-chain-tag {
  margin-left: auto;
  font-family: var(--font-mono); font-size: 0.58rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--bp-muted);
}
.dlt-chain-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 2px;
  font-size: 0.76rem; color: var(--bp-text-2); line-height: 1.35;
}
.dlt-chain-list li { display: flex; align-items: center; gap: 8px; }
.dlt-chain-list li::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%; flex-shrink: 0;
}
.dlt-chain-cefi .dlt-chain-list li::before { background: var(--bp-amber); }
.dlt-chain-defi .dlt-chain-list li::before { background: var(--bp-indigo); }

/* Bridge service connector between the two chains */
.dlt-bridge-svc {
  display: flex; align-items: center; gap: 10px;
  padding: 2px 2px;
}
.dlt-bridge-svc-rule { flex: 1; height: 1px; background: linear-gradient(90deg, var(--bp-amber-soft), var(--bp-indigo-soft)); }
.dlt-bridge-svc-name {
  font-family: var(--font-mono); font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--bp-muted);
  white-space: nowrap;
}

/* ==========================================================================
   Dual-DLT immutable pillar — two chains stacked (V3 hero)
   ========================================================================== */

.v3-dlt-chain {
  padding: 10px 12px;
  border-radius: 8px;
}
.v3-dlt-chain-cefi {
  border: 1px solid var(--bp-amber-strong);
  background: linear-gradient(180deg, var(--bp-amber-soft), transparent 70%), var(--bp-card-hover);
}
.v3-dlt-chain-defi {
  border: 1px dashed var(--bp-indigo);
  background: linear-gradient(180deg, var(--bp-indigo-soft), transparent 70%), var(--bp-card);
  margin-top: 10px;
}
.v3-dlt-chain-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.v3-dlt-chain-name { font-family: var(--font-display); font-weight: 600; font-size: 1rem; }
.v3-dlt-chain-cefi .v3-dlt-chain-name { color: var(--bp-amber); }
.v3-dlt-chain-defi .v3-dlt-chain-name { color: var(--bp-indigo); }
.v3-dlt-chain-tag {
  margin-left: auto;
  font-family: var(--font-mono); font-size: 0.6rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--bp-muted);
}
.v3-bridge-svc {
  display: flex; align-items: center; gap: 10px; margin: 9px 0;
}
.v3-bridge-svc-rule { flex: 1; height: 1px; background: linear-gradient(90deg, var(--bp-amber), var(--bp-indigo)); opacity: 0.5; }
.v3-bridge-svc-name {
  font-family: var(--font-mono); font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--bp-muted); white-space: nowrap;
}