/* ═══════════════════════════════════════════════════════════════════
   TXID PATHING — Bitcoin transaction chain visualiser.
   Originally a strict blueprint (#001F3F + #FFFFFF) PWA; now themed
   to match the Situation Room parchment + dark palettes. All colour
   literals routed through CSS variables so the parent app's theme
   flows through (data-theme attr bridged from the embedding iframe).
   ═══════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;700&display=swap');

/* ─── Theme palettes ─────────────────────────────────────────────────
   Two rgb triplets carry most of the weight: --c-fg-rgb (primary ink)
   and --c-bg-rgb (background). All tiered ghost layers are rgba()s
   expressed as `rgba(var(--c-fg-rgb), α)` so a single triplet swap
   re-colours every 0.22/0.28/0.42 variant in sync. */
:root {
  --c-bg:          #f8f1e3;
  --c-bg-rgb:      248,241,227;
  --c-fg:          #1a1a1a;
  --c-fg-rgb:      26,26,26;

  /* Structural rule colour — matches UTXO Cosmography's --c-rule and the
     rest of the Situation Room chrome. Used for all layout borders
     (sidebar edge, header underline, button/input frames, tooltip frame)
     so the TXID tool reads as "drafting paper" rather than clinical CAD
     black-on-cream. */
  --c-rule:        #c4b89e;

  /* Textured background layers (crosshatch + 40px grid) */
  --c-crosshatch:  rgba(26,26,26,0.035);
  --c-grid-line:   rgba(26,26,26,0.06);

  /* Vignette (paper-edge darkening) */
  --c-vignette:    rgba(90,60,20,0.14);
}
[data-theme="dark"] {
  --c-bg:          #0a0f14;
  --c-bg-rgb:      10,15,20;
  --c-fg:          #c8e6e3;
  --c-fg-rgb:      200,230,227;

  --c-rule:        #1a3a3a;

  --c-crosshatch:  rgba(200,230,227,0.03);
  --c-grid-line:   rgba(200,230,227,0.055);

  --c-vignette:    rgba(0,0,0,0.55);
}

/* ─── Reset ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ─── Base body: 40px grid + diagonal crosshatch (theme-aware) ──── */
body {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  color: var(--c-fg);
  height: 100vh;
  overflow: hidden;
  display: flex;
  background-color: var(--c-bg);
  background-image:
    repeating-linear-gradient( 45deg, var(--c-crosshatch) 0, var(--c-crosshatch) 1px, transparent 1px, transparent 80px),
    repeating-linear-gradient(-45deg, var(--c-crosshatch) 0, var(--c-crosshatch) 1px, transparent 1px, transparent 80px),
    repeating-linear-gradient(  0deg, transparent, transparent 39px, var(--c-grid-line) 40px),
    repeating-linear-gradient( 90deg, transparent, transparent 39px, var(--c-grid-line) 40px);
  background-size: 80px 80px, 80px 80px, 40px 40px, 40px 40px;
}

/* Vignette: paper-edge darkening (dark mode) / warm halo (parchment) */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 48%, var(--c-vignette) 100%);
  pointer-events: none;
  z-index: 200;
}

/* Outer frame: single ruled border */
body::before {
  content: '';
  position: fixed;
  inset: 5px;
  border: 1px solid rgba(var(--c-fg-rgb), 0.14);
  pointer-events: none;
  z-index: 199;
}

/* ─── SIDEBAR — Specifications Panel ────────────────────────────── */
#sidebar {
  position: fixed;
  left: 0; top: 0;
  width: 300px;
  height: 100vh;
  background-color: var(--c-bg);
  background-image:
    repeating-linear-gradient( 45deg, var(--c-crosshatch) 0, var(--c-crosshatch) 1px, transparent 1px, transparent 80px),
    repeating-linear-gradient(-45deg, var(--c-crosshatch) 0, var(--c-crosshatch) 1px, transparent 1px, transparent 80px),
    repeating-linear-gradient(  0deg, transparent, transparent 39px, var(--c-grid-line) 40px),
    repeating-linear-gradient( 90deg, transparent, transparent 39px, var(--c-grid-line) 40px);
  background-size: 80px 80px, 80px 80px, 40px 40px, 40px 40px;
  border-right: 2px solid var(--c-rule);
  overflow-y: auto;
  z-index: 20;
}

/* Panel header bar */
#sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55em 0.85em;
  border-bottom: 2px solid var(--c-rule);
}

.sidebar-title {
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--c-fg);
  text-transform: uppercase;
}


/* Section headers */
#sidebar h3 {
  display: flex;
  align-items: center;
  gap: 0.55em;
  font-size: 0.7em;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-fg);
  padding: 0.5em 0.85em;
  border-bottom: 1px solid rgba(var(--c-fg-rgb), 0.22);
}

/* Inverted badge — swap of fg/bg */
.section-num {
  background: var(--c-fg);
  color: var(--c-bg);
  font-size: 0.85em;
  font-weight: 700;
  padding: 1px 5px;
  letter-spacing: 0.05em;
}

#tx-info, #network-info, #oracle-info { border-bottom: 1px solid rgba(var(--c-fg-rgb), 0.18); }

#sidebar ul { list-style: none; }

#sidebar ul li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.4em;
  padding: 0.28em 0.85em;
  font-size: 0.72em;
  color: var(--c-fg);
  border-bottom: 1px solid rgba(var(--c-fg-rgb), 0.07);
}

#sidebar ul li .label {
  color: rgba(var(--c-fg-rgb), 0.5);
  flex-shrink: 0;
  letter-spacing: 0.05em;
}

#sidebar ul li.full-row { flex-direction: column; gap: 0.2em; padding-bottom: 0.5em; }
#sidebar ul li.full-row .mono {
  font-family: inherit;
  font-size: 0.88em;
  word-break: break-all;
  color: var(--c-fg);
}

.placeholder {
  font-size: 0.7em;
  color: rgba(var(--c-fg-rgb), 0.28);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.6em 0.85em;
}

#refresh-btn {
  display: block;
  width: calc(100% - 1.7em);
  margin: 0.8em 0.85em;
  background: transparent;
  color: var(--c-fg);
  border: 1px solid var(--c-rule);
  padding: 0.4em 0.9em;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: background 0.15s, color 0.15s;
}
#refresh-btn:hover { background: var(--c-fg); color: var(--c-bg); }

/* ─── Oracle / procedural field notes ───────────────────────────── */
#oracle-info { padding-bottom: 1em; }

.oracle-note {
  margin: 0.75em 0.85em 0;
  padding: 0.55em 0.7em;
  border-left: 2px solid rgba(var(--c-fg-rgb), 0.25);
  position: relative;
}
.oracle-note + .oracle-note { margin-top: 0.6em; }

.oracle-label {
  display: block;
  font-size: 0.6em;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: rgba(var(--c-fg-rgb), 0.38);
  margin-bottom: 0.3em;
}

.oracle-note p {
  margin: 0;
  font-size: 0.68em;
  line-height: 1.6;
  color: rgba(var(--c-fg-rgb), 0.62);
  font-style: italic;
}

.oracle-note p em {
  font-style: normal;
  color: rgba(var(--c-fg-rgb), 0.9);
  font-weight: 600;
}

/* ─── MAIN area ──────────────────────────────────────────────────── */
#main {
  margin-left: 300px;
  width: calc(100vw - 300px);
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── HEADER — title block ──────────────────────────────────────── */
#header {
  flex-shrink: 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: stretch;
  background-color: var(--c-bg);
  background-image:
    repeating-linear-gradient( 45deg, var(--c-crosshatch) 0, var(--c-crosshatch) 1px, transparent 1px, transparent 80px),
    repeating-linear-gradient(-45deg, var(--c-crosshatch) 0, var(--c-crosshatch) 1px, transparent 1px, transparent 80px),
    repeating-linear-gradient(  0deg, transparent, transparent 39px, var(--c-grid-line) 40px),
    repeating-linear-gradient( 90deg, transparent, transparent 39px, var(--c-grid-line) 40px);
  background-size: 80px 80px, 80px 80px, 40px 40px, 40px 40px;
  border-bottom: 2px solid var(--c-rule);
  min-height: 64px;
}

/* LEFT: project identity */
#title-block {
  display: flex;
  align-items: center;
  gap: 0.7em;
  padding: 0.6em 1.2em;
  border-right: 2px solid var(--c-rule);
}

#title-logo {
  font-size: 2em;
  color: var(--c-fg);
  line-height: 1;
  flex-shrink: 0;
}

#title-text { display: flex; flex-direction: column; gap: 0.08em; }

#title-main {
  font-size: 0.88em;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--c-fg);
  white-space: nowrap;
}

#title-sub {
  font-size: 0.6em;
  letter-spacing: 0.14em;
  color: rgba(var(--c-fg-rgb), 0.42);
  white-space: nowrap;
}

/* CENTER: TXID input */
#header-center {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.2em;
  padding: 0.5em 1.2em;
}

.field-label {
  font-size: 0.6em;
  letter-spacing: 0.16em;
  color: rgba(var(--c-fg-rgb), 0.42);
  text-transform: uppercase;
}

#input-row { display: flex; gap: 0.5em; align-items: center; }

#txid-input {
  flex: 1;
  background: transparent;
  color: var(--c-fg);
  border: 1px solid var(--c-rule);
  padding: 0.42em 0.7em;
  font-family: inherit;
  font-size: 0.78em;
  letter-spacing: 0.04em;
  outline: none;
  caret-color: var(--c-fg);
  border-radius: 0;
  transition: box-shadow 0.15s;
}
#txid-input:focus {
  box-shadow: 0 0 0 1px rgba(var(--c-fg-rgb), 0.5), inset 0 0 0 1px rgba(var(--c-fg-rgb), 0.1);
}
#txid-input::placeholder {
  color: rgba(var(--c-fg-rgb), 0.2);
  letter-spacing: 0.08em;
}

#visualize-btn {
  background: transparent;
  color: var(--c-fg);
  border: 1px solid var(--c-rule);
  padding: 0.42em 1.2em;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.78em;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  white-space: nowrap;
  border-radius: 0;
  transition: background 0.15s, color 0.15s;
}
#visualize-btn:hover:not(:disabled) { background: var(--c-fg); color: var(--c-bg); }
#visualize-btn:disabled { opacity: 0.35; cursor: not-allowed; }

#status-msg {
  font-size: 0.65em;
  letter-spacing: 0.1em;
  color: rgba(var(--c-fg-rgb), 0.48);
  text-transform: uppercase;
  min-height: 1em;
}
#status-msg.error { color: var(--c-fg); opacity: 1; }

/* RIGHT: drawing metadata */
#drawing-meta {
  display: flex;
  flex-direction: column;
  border-left: 2px solid var(--c-rule);
}

.meta-cell {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0.2em 0.85em;
  border-bottom: 1px solid rgba(var(--c-fg-rgb), 0.22);
  min-width: 100px;
}
.meta-cell:last-child { border-bottom: none; }
.meta-cell .field-label { font-size: 0.58em; }
.meta-cell > span:last-child {
  font-size: 0.72em;
  font-weight: 700;
  color: var(--c-fg);
  letter-spacing: 0.06em;
}

#drawing-no {
  color: var(--c-fg) !important;
  font-size: 0.68em !important;
  word-break: break-all;
}

/* ─── Visualisation canvas ───────────────────────────────────────── */
#viz {
  flex: 1;
  overflow: hidden;
  cursor: grab;
  position: relative;
  /* SVG inherits `color` so markers + copy-flash text using
     fill="currentColor" follow the active theme live. */
  color: var(--c-fg);
}
#viz:active { cursor: grabbing; }

/* ─── D3 LINKS — chunky ribbons ────────────────────────── */

/* Primary chain — thick ribbon with glow pulse. Stroke uses 0.78 alpha so
   10px ribbons read as strong ink, not clinical black-on-cream. */
.link {
  fill: none;
  stroke: rgba(var(--c-fg-rgb), 0.78);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-linejoin: round;
  animation: ribbon-pulse 3.2s ease-in-out infinite;
}

/* Secondary inputs — medium semi-transparent ribbon */
.link.ghost {
  stroke: rgba(var(--c-fg-rgb), 0.22);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
  animation: ribbon-pulse-dim 4.8s ease-in-out infinite;
}

/* Output satellite — slim ribbon */
.link.output {
  stroke: rgba(var(--c-fg-rgb), 0.35);
  stroke-width: 2.5;
  stroke-linecap: round;
  animation: ribbon-pulse-dim 3.8s ease-in-out infinite;
}

/* Primary ribbon: glow expands and contracts subtly */
@keyframes ribbon-pulse {
  0%, 100% {
    stroke-opacity: 0.78;
    filter: drop-shadow(0 0 2px rgba(var(--c-fg-rgb), 0.30));
  }
  50% {
    stroke-opacity: 1.0;
    filter: drop-shadow(0 0 9px rgba(var(--c-fg-rgb), 0.72));
  }
}

@keyframes ribbon-pulse-dim {
  0%, 100% { stroke-opacity: 0.55; }
  50%       { stroke-opacity: 0.90; }
}

/* ─── D3 NODES ───────────────────────────────────────────────────── */
.node { cursor: pointer; }

.node-inner {
  transform-origin: 0 0;
  transform-box: fill-box;
  transition: transform 0.12s ease;
}
.node:hover .node-inner { transform: scale(1.05); }

/* Background fill rect */
.node-bg { fill: var(--c-bg); stroke: none; }
.node.ghost .node-bg { fill: none; }

/* Border frame rect — 0.72 alpha so 4.5/5.5-px strokes read as strong
   ink rather than pure black on parchment. */
.node-border { fill: none; stroke: rgba(var(--c-fg-rgb), 0.72); stroke-width: 4.5; }
.node.coinbase .node-border { stroke-width: 5.5; }
.node.depth-limit .node-border { stroke-width: 2; stroke-dasharray: 5 2; }
.node.ghost .node-border {
  stroke: rgba(var(--c-fg-rgb), 0.25);
  stroke-width: 1.2;
  stroke-dasharray: 4 3;
}

/* Output satellite — solid, lighter border */
.node.output .node-border {
  stroke: rgba(var(--c-fg-rgb), 0.45);
  stroke-width: 1.5;
}

.copy-flash { pointer-events: none; }

/* Inner double-rule frame (drafting detail) */
.node-inner-border {
  fill: none;
  stroke: rgba(var(--c-fg-rgb), 0.25);
  stroke-width: 0.8;
}

/* Horizontal divider inside nodes */
.node-divider {
  stroke: rgba(var(--c-fg-rgb), 0.22);
  stroke-width: 0.8;
}

/* Hover glow */
.node.hovered .node-border { filter: url(#glow-fg); }

/* ─── Node text ──────────────────────────────────────────────────── */
.node text {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  pointer-events: none;
  user-select: none;
  fill: var(--c-fg);
}

/* TXID label — bold, inked look via backing stroke */
.node-txid {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  fill: var(--c-fg);
  paint-order: stroke fill;
  stroke: rgba(var(--c-bg-rgb), 0.65);
  stroke-width: 2px;
}

.node-amount {
  font-size: 9.5px;
  font-weight: 500;
  fill: rgba(var(--c-fg-rgb), 0.76);
  letter-spacing: 0.02em;
}

.node-height {
  font-size: 8px;
  fill: rgba(var(--c-fg-rgb), 0.38);
  letter-spacing: 0.03em;
}

/* Ghost + depth-limit text */
.node.ghost text       { fill: rgba(var(--c-fg-rgb), 0.3); font-size: 9px; }
.node.depth-limit text { fill: rgba(var(--c-fg-rgb), 0.7); font-size: 10px; }
.node-depth-hint       { fill: rgba(var(--c-fg-rgb), 0.42) !important; font-size: 8px !important; font-style: italic; letter-spacing: 0.04em; }
.node.depth-limit:hover .node-border { stroke: rgba(var(--c-fg-rgb), 0.9); filter: url(#glow-fg); }
.node.depth-limit:hover .node-depth-hint { fill: rgba(var(--c-fg-rgb), 0.85) !important; }

/* ─── Tooltip — annotation callout ──────────────────────────────── */
.tooltip {
  position: fixed;
  display: none;
  background: var(--c-bg);
  border: 2px solid var(--c-rule);
  box-shadow: inset 0 0 0 4px var(--c-bg), inset 0 0 0 5px rgba(var(--c-fg-rgb), 0.28);
  padding: 0.6em 0.8em;
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.72em;
  color: var(--c-fg);
  pointer-events: none;
  max-width: 300px;
  z-index: 100;
  line-height: 1.65;
}

.tooltip .tip-txid {
  font-size: 0.87em;
  word-break: break-all;
  color: var(--c-fg);
  font-weight: 700;
  margin-bottom: 6px;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(var(--c-fg-rgb), 0.28);
  letter-spacing: 0.02em;
}

.tooltip table { border-collapse: collapse; width: 100%; }
.tooltip td { padding: 1px 5px 1px 0; vertical-align: top; }
.tooltip td:first-child {
  color: rgba(var(--c-fg-rgb), 0.48);
  white-space: nowrap;
  letter-spacing: 0.06em;
  padding-right: 0.9em;
}

/* ─── Mobile panel close button (hidden on desktop) ─────────────── */
#panel-close { display: none; }

/* ─── Mobile FAB ────────────────────────────────────────────────── */
#panel-fab {
  display: none;
  position: fixed;
  bottom: calc(1.2rem + env(safe-area-inset-bottom));
  right: 1.2rem;
  z-index: 50;
  background: var(--c-bg);
  color: var(--c-fg);
  border: 2px solid var(--c-rule);
  font-family: inherit;
  font-size: 0.68em;
  font-weight: 700;
  letter-spacing: 0.18em;
  padding: 0.55em 1em;
  cursor: pointer;
  box-shadow: 0 0 18px rgba(var(--c-fg-rgb), 0.18);
  transition: background 0.15s, color 0.15s;
}
#panel-fab:hover,
#panel-fab:active { background: var(--c-fg); color: var(--c-bg); }

/* ─── Panel backdrop (mobile only) ──────────────────────────────── */
#panel-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(var(--c-bg-rgb), 0.6);
  z-index: 18;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

/* ─── Mobile layout ──────────────────────────────────────────────── */
@media (max-width: 700px) {

  #sidebar {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 68vh;
    max-height: calc(100vh - 56px);
    border-right: none;
    border-top: 2px solid var(--c-rule);
    transform: translateY(110%);
    transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 19;
    padding-bottom: env(safe-area-inset-bottom);
  }

  #sidebar::before {
    content: '';
    display: block;
    width: 36px;
    height: 3px;
    background: rgba(var(--c-fg-rgb), 0.3);
    border-radius: 2px;
    margin: 10px auto 4px;
  }

  #sidebar.panel-open { transform: translateY(0); }

  #panel-close {
    display: block;
    background: none;
    border: 1px solid rgba(var(--c-fg-rgb), 0.4);
    color: var(--c-fg);
    font-size: 0.75em;
    cursor: pointer;
    padding: 2px 7px;
    line-height: 1.4;
    font-family: inherit;
    transition: background 0.15s, color 0.15s;
  }
  #panel-close:hover { background: var(--c-fg); color: var(--c-bg); }

  #panel-fab      { display: block; }
  #panel-backdrop { display: block; opacity: 0; pointer-events: none;
                    transition: opacity 0.32s ease; }
  #panel-backdrop.visible { opacity: 1; pointer-events: all; }

  #main {
    margin-left: 0;
    width: 100vw;
  }

  #header {
    grid-template-columns: 1fr;
    min-height: 56px;
  }
  #title-block, #drawing-meta { display: none; }

  #header-center {
    padding: 0.45em 0.75em;
    border-left: none;
    border-right: none;
  }

  .field-label { display: none; }

  #input-row {
    gap: 0.4em;
  }

  #txid-input {
    font-size: 0.68em;
    padding: 0.55em 0.6em;
    min-width: 0;
  }

  #visualize-btn {
    font-size: 0.68em;
    padding: 0.55em 0.8em;
    flex-shrink: 0;
  }

  #status-msg { font-size: 0.65em; }

  #viz { flex: 1; min-height: 0; }

  .tooltip { display: none !important; }

  #sidebar-content { padding-bottom: 1em; }
}

/* ─── Very small screens (≤ 380px) ──────────────────────────────── */
@media (max-width: 380px) {
  #txid-input { font-size: 0.6em; }
  #visualize-btn { font-size: 0.62em; letter-spacing: 0.1em; }
  #sidebar { height: 75vh; }
}

/* ─── Scrollbars (theme-aware) ──────────────────────────────────────
   The system default scrollbar bleeds chrome (gray on parchment, blue
   on dark) into the visualiser. Route both Webkit and Firefox tracks
   through the same --c-fg / --c-rule tokens that drive the rest of
   the chrome so the bar swaps with the parent's data-theme. */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(var(--c-fg-rgb), 0.28) transparent;
}
*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-track {
  background: transparent;
  border-left: 1px solid var(--c-rule);
}
*::-webkit-scrollbar-thumb {
  background: rgba(var(--c-fg-rgb), 0.22);
  border: 2px solid transparent;
  background-clip: padding-box;
  border-radius: 6px;
}
*::-webkit-scrollbar-thumb:hover {
  background: rgba(var(--c-fg-rgb), 0.42);
  background-clip: padding-box;
}
*::-webkit-scrollbar-corner {
  background: transparent;
}

/* ─── Embedded mode (inside the Situation Room iframe wrapper) ────
   Drop the PWA's own crosshatch + grid background and the vignette
   so the parent app's chrome (which already paints its own grid)
   reads through cleanly. Standalone PWA visits are untouched. */
html.embedded body {
  background-image: none;
}
html.embedded body::after {
  display: none;
}