/* ============================================================
   THE BLUEPRINT OF INTELLIGENCE — PHASE 01
   Cyber-wireframe design system
   ============================================================ */

:root {
  --ink:      #0A0A0C;
  --inkraise: #0E0F12;
  --term:     #00FF66;
  --tactical: #2a774a;   /* raised from #1A5F36 for legible structural/label text */
  --fog:      #7DBA9A;
  --ash:      #648175;  /* raised from #3A4A41 for readable faint/secondary text */
  --glow:     0 0 8px rgba(0, 255, 102, 0.35);
}

/* ---- Base -------------------------------------------------- */
html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

/* ============================================================
   LOADING SCREEN — AI chatbot prompt page
   ============================================================ */
.loader {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--ink);
  background-image:
    linear-gradient(to right,  rgba(0,255,102,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,255,102,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: -1px -1px;
  cursor: pointer;
  transition:
    opacity 0.6s ease,
    transform 0.7s cubic-bezier(0.7, 0, 0.3, 1),
    visibility 0s linear 0.7s;
}
.loader.is-leaving {
  opacity: 0;
  transform: translateY(-42vh);
  visibility: hidden;
}
.loader-inner {
  width: min(680px, 90vw);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}
.loader-eyebrow {
  font-size: 10px;
  letter-spacing: 0.35em;
  color: var(--ash);
  font-family: 'Share Tech Mono', monospace;
}
.loader-title {
  margin: 0;
  font-family: 'Share Tech Mono', 'JetBrains Mono', monospace;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 600;
  color: var(--term);
  text-shadow: 0 0 18px rgba(0,255,102,0.35);
  letter-spacing: 0.02em;
}
.loader-chatbox {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--tactical);
  background: rgba(0,255,102,0.02);
  border-radius: 2px;
  box-shadow:
    inset 0 0 0 1px rgba(0,255,102,0.04),
    0 0 24px rgba(0,0,0,0.6);
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px;
  min-height: 54px;
}
/* schematic corner brackets */
.loader-chatbox::before,
.loader-chatbox::after {
  content: "";
  position: absolute;
  width: 10px; height: 10px;
  border: 1px solid var(--term);
  box-shadow: var(--glow);
  pointer-events: none;
}
.loader-chatbox::before { top: -1px; left: -1px;  border-right: 0; border-bottom: 0; }
.loader-chatbox::after  { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.loader-prompt { color: var(--term); }
.loader-text { color: var(--fog); white-space: pre; }
.loader-cursor {
  display: inline-block;
  width: 9px; height: 1.05em;
  background: var(--term);
  vertical-align: -2px;
  margin-left: 1px;
  box-shadow: 0 0 8px rgba(0,255,102,0.7);
  animation: loader-blink 1s steps(1) infinite;
}
.loader-cursor.idle { animation: none; opacity: 0.45; }
@keyframes loader-blink { 50% { opacity: 0; } }

.loader-placeholder {
  position: absolute;
  left: 2.35rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ash);
  opacity: 0.6;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.loader-placeholder.is-hidden { opacity: 0; }

.loader-hint {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ash);
  font-family: 'Share Tech Mono', monospace;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.loader-hint.is-shown { opacity: 1; }
.loader-hint .key {
  display: inline-block;
  border: 1px solid var(--tactical);
  padding: 1px 6px;
  color: var(--term);
  margin: 0 0.2rem;
}

/* ---- Background grid (glowing dark-green) ------------------ */
.blueprint-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-color: var(--ink);
  background-image:
    /* fine grid */
    linear-gradient(to right,  rgba(0,255,102,0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,255,102,0.045) 1px, transparent 1px),
    /* coarse grid (major) */
    linear-gradient(to right,  rgba(0,255,102,0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,255,102,0.09) 1px, transparent 1px);
  background-size:
    40px 40px, 40px 40px,
    200px 200px, 200px 200px;
  background-position: -1px -1px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 55%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 55%, transparent 100%);
}

/* ---- Faint neural network (background canvas) -------------- */
/* Sits above the blueprint grid but below the atmosphere + all
   content. Kept very dim so it reads as ambient texture, never
   competing with the schematic foreground. */
.neural-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.45;
  mix-blend-mode: screen;
}

/* subtle scanline + vignette atmosphere */
.atmosphere {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(0,0,0,0) 0px,
      rgba(0,0,0,0) 2px,
      rgba(0,0,0,0.18) 3px,
      rgba(0,0,0,0) 4px
    ),
    radial-gradient(ellipse 100% 100% at 50% 50%, transparent 60%, rgba(0,0,0,0.6) 100%);
  mix-blend-mode: multiply;
  opacity: 0.5;
}

/* ---- Corner crosshairs (fixed to viewport) ----------------- */
.crosshair {
  position: fixed;
  z-index: 30;
  width: 22px;
  height: 22px;
  pointer-events: none;
}
.crosshair::before,
.crosshair::after {
  content: "";
  position: absolute;
  background: var(--term);
  box-shadow: var(--glow);
}
.crosshair::before { width: 100%; height: 1px; top: 50%; left: 0; }      /* horizontal */
.crosshair::after  { width: 1px; height: 100%; left: 50%; top: 0; }       /* vertical   */
.crosshair-tl { top: 10px;    left: 10px;    }
.crosshair-tr { top: 10px;    right: 10px;   }
.crosshair-bl { bottom: 10px; left: 10px;    }
.crosshair-br { bottom: 10px; right: 10px;   }

/* ---- Coordinate tick bars (top + bottom) ------------------- */
.coord-bar {
  position: fixed;
  z-index: 20;
  left: 0; right: 0;
  height: 14px;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 36px;
  font-size: 9px;
  letter-spacing: 0.25em;
  color: var(--ash);
  font-family: 'Share Tech Mono', monospace;
}
.coord-top    { top: 56px; }
.coord-bottom { bottom: 0; }
.coord-bar .tick {
  position: relative;
  padding-left: 12px;
}
.coord-bar .tick::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 6px; height: 1px;
  background: var(--tactical);
  transform: translateY(-50%);
}

/* ============================================================
   SCHEMATIC BLOCK — the base container for all content panels
   ============================================================ */
.schematic-block {
  position: relative;
  background:
    linear-gradient(180deg, rgba(14,15,18,0.92), rgba(10,10,12,0.92));
  border: 1px solid var(--tactical);
  border-radius: 2px;
  box-shadow:
    inset 0 0 0 1px rgba(0,255,102,0.04),
    0 0 24px rgba(0,0,0,0.6);
}
/* schematic corner brackets */
.schematic-block::before,
.schematic-block::after {
  content: "";
  position: absolute;
  width: 10px; height: 10px;
  border: 1px solid var(--term);
  box-shadow: var(--glow);
  pointer-events: none;
}
.schematic-block::before { top: -1px; left: -1px;  border-right: 0; border-bottom: 0; }
.schematic-block::after  { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

/* ============================================================
   CENTRAL TIMELINE AXIS
   ============================================================ */
.timeline-axis {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 0;
  transform: translateX(-50%);
  z-index: 1;
  pointer-events: none;
}
.timeline-axis-core {
  position: absolute;
  inset: 0 0 0 0;
  width: 1px;
  margin: 0 auto;
  background: repeating-linear-gradient(
    to bottom,
    var(--term) 0,
    var(--term) 6px,
    transparent 6px,
    transparent 12px
  );
  box-shadow: 0 0 6px rgba(0, 255, 102, 0.6);
}
/* flowing energy pulse along the axis */
.timeline-axis-flow {
  position: absolute;
  inset: 0;
  width: 2px;
  margin: 0 auto;
  background: linear-gradient(to bottom, transparent, var(--term), transparent);
  background-size: 100% 30vh;
  opacity: 0.7;
  filter: blur(1px);
  animation: axis-flow 6s linear infinite;
}
@keyframes axis-flow {
  0%   { background-position: 0 -30vh; }
  100% { background-position: 0 100vh; }
}

/* ============================================================
   ERA SHEET — alternating left/right around the central axis
   ============================================================ */
.era-sheet {
  position: relative;
  z-index: 2;
  margin-bottom: 5rem;
  display: flex;
  align-items: stretch;
}
.era-card { width: 100%; }

/* On large screens, split sheets to alternate sides of the axis */
@media (min-width: 1024px) {
  .era-sheet { padding-left: 0; padding-right: 0; }
  .era-left  { justify-content: flex-start; }
  .era-right { justify-content: flex-end; }

  .era-left  .era-card { width: calc(50% - 3rem); margin-right: auto; }
  .era-right .era-card { width: calc(50% - 3rem); margin-left: auto; }

  /* axis node sits at the 50% line */
  .era-node { left: 50%; transform: translateX(-50%); }
}

/* axis node (connector dot on the timeline) */
.era-node {
  position: absolute;
  top: 2.25rem;
  left: 50%;
  transform: translateX(-50%);
  width: 18px; height: 18px;
  display: grid; place-items: center;
  z-index: 3;
}
.era-node-core {
  width: 10px; height: 10px;
  border: 1px solid var(--term);
  background: var(--ink);
  box-shadow: var(--glow);
  transform: rotate(45deg);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
/* on small screens hide the floating node (no central axis space) */
@media (max-width: 1023px) {
  .era-node { display: none; }
}

/* ============================================================
   ERA CARD INTERNAL STRUCTURE
   ============================================================ */
.era-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px dashed var(--tactical);
  background: linear-gradient(90deg, rgba(0,255,102,0.04), transparent);
}
.era-header-r { text-align: right; }

.era-tag {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ash);
  border: 1px solid var(--tactical);
  padding: 2px 8px;
  border-radius: 2px;
}
.era-title {
  margin-top: 0.5rem;
  font-size: 1.25rem;
  line-height: 1.2;
  font-weight: 600;
  color: var(--term);
  text-shadow: 0 0 12px rgba(0,255,102,0.25);
}
.era-subtitle {
  margin-top: 0.25rem;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fog);
  opacity: 0.95;
}
.coord-tick {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--ash);
  font-family: 'Share Tech Mono', monospace;
}
.coord-tick:first-child { color: var(--tactical); }

.era-body { padding: 1.25rem; }

.era-prose p { margin: 0; }
.era-meta {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  font-size: 10px;
  letter-spacing: 0.15em;
}
.era-meta > div {
  border: 1px solid var(--tactical);
  padding: 0.4rem 0.5rem;
  background: rgba(0,255,102,0.02);
}
.era-meta dt { color: var(--ash); text-transform: uppercase; }
.era-meta dd { margin: 0.15rem 0 0; color: var(--fog); font-weight: 500; }

.era-footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.25rem;
  border-top: 1px dashed var(--tactical);
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--ash);
}
.era-path-dash {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(to right, var(--tactical) 0 6px, transparent 6px 12px);
}
.era-path-label { color: var(--tactical); }

/* ============================================================
   WIDGET SLOTS — placeholders for Phase 02 interactive widgets
   ============================================================ */
.widget-slot {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 220px;
  border: 1px dashed var(--tactical);
  background:
    repeating-linear-gradient(
      45deg,
      rgba(0,255,102,0.015) 0 8px,
      transparent 8px 16px
    );
}
.widget-slot-label {
  position: absolute;
  top: -1px; left: 1rem;
  transform: translateY(-50%);
  background: var(--ink);
  padding: 0 6px;
  font-size: 9px;
  letter-spacing: 0.3em;
  color: var(--tactical);
}
.widget-placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
  padding: 1.5rem;
}
.widget-placeholder-id {
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--ash);
  border: 1px solid var(--ash);
  padding: 0.4rem 0.8rem;
}
.widget-placeholder-note {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ash);
  opacity: 0.95;
}

/* ---- Widget expand-on-click -------------------------------- */
/* Clicking a widget slot expands it for better visibility; the
   era body restacks so the widget leads and the prose drops below.
   The slot collapses again once it scrolls out of view. */
.widget-slot {
  cursor: zoom-in;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, min-height 0.3s ease;
}
/* expand / collapse affordance, top-right of the slot frame */
.widget-slot::after {
  content: "⊕ EXPAND";
  position: absolute;
  top: -1px; right: 0.75rem;
  transform: translateY(-50%);
  background: var(--ink);
  padding: 0 6px;
  font-size: 9px;
  letter-spacing: 0.3em;
  color: var(--tactical);
  pointer-events: none;
  transition: color 0.3s ease;
}

.era-body { transition: gap 0.3s ease; }

/* Expanded: card body becomes a single column, widget leads */
.era-body.is-widget-expanded {
  grid-template-columns: 1fr !important;
}
.era-body.is-widget-expanded .widget-slot {
  order: 1;
  min-height: 420px;
  border-style: solid;
  border-color: var(--term);
  cursor: zoom-out;
  box-shadow:
    inset 0 0 0 1px rgba(0,255,102,0.10),
    0 0 28px rgba(0,255,102,0.10);
}
.era-body.is-widget-expanded .widget-slot::after {
  content: "⊖ COLLAPSE";
  color: var(--term);
}
.era-body.is-widget-expanded .widget-slot .widget-slot-label {
  color: var(--term);
}
.era-body.is-widget-expanded .era-prose {
  order: 2;
}
/* give the expanded schematic a little breathing room so it reads larger */
.era-body.is-widget-expanded .widget-slot > :first-child {
  margin-top: 0.5rem;
}

/* reveal-on-scroll: sheets start hidden, animate in */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease, box-shadow 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal.is-visible .era-node-core {
  background: var(--term);
  box-shadow: 0 0 14px rgba(0,255,102,0.6);
}

/* when an era is the active focus, brighten its schematic block */
.era-card.is-active {
  border-color: var(--term);
  box-shadow:
    inset 0 0 0 1px rgba(0,255,102,0.1),
    0 0 32px rgba(0,255,102,0.08);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes pulse-slow {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}
.animate-pulse-slow { animation: pulse-slow 2.4s ease-in-out infinite; }

/* ---- Scrollbar (webkit) — keep the wireframe feel ---------- */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ink); border-left: 1px solid var(--tactical); }
::-webkit-scrollbar-thumb {
  background: var(--tactical);
  border: 2px solid var(--ink);
}
::-webkit-scrollbar-thumb:hover { background: var(--term); }

/* ---- Reduced motion --------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   WIDGET 01-A · THE WIREFRAME PERCEPTRON
   ============================================================ */
.widget-slot-active {
  min-height: 0 !important;
  border-style: solid;
  border-color: var(--tactical);
}

/* The perceptron is an SVG schematic + an HTML control deck */
.perc {
  display: flex;
  flex-direction: column;
  width: 100%;
}
.perc-svg {
  width: 100%;
  height: auto;
  display: block;
  padding: 0.5rem 0.75rem 0.25rem;
}

/* SVG node + line styling (defaults; JS toggles state classes) */
.perc line.sig {
  stroke: var(--tactical);
  stroke-width: 1.5;
  transition: stroke 0.25s ease, stroke-width 0.25s ease, filter 0.25s ease;
}
.perc line.sig.active {
  stroke: var(--term);
  stroke-width: 2;
  filter: drop-shadow(0 0 4px rgba(0,255,102,0.7));
}
.perc line.sig.inactive {
  stroke: var(--ash);
  opacity: 0.55;
}
.perc .node-fill {
  fill: var(--inkraise);
  transition: fill 0.25s ease, stroke 0.25s ease, filter 0.3s ease;
}
.perc .node-stroke { stroke: var(--tactical); stroke-width: 1.5; }
.perc text {
  font-family: 'Share Tech Mono', 'JetBrains Mono', monospace;
  fill: var(--fog);
}
.perc text.label { fill: var(--ash); font-size: 10px; letter-spacing: 0.15em; }
.perc text.value { fill: var(--term); font-size: 13px; font-weight: 600; }

/* summation node */
.perc #sum-node .node-stroke { stroke: var(--term); }
.perc #sum-node text.value { fill: var(--term); }

/* output node states */
.perc #output-node .node-fill { fill: var(--inkraise); }
.perc #output-node .node-stroke { stroke: var(--tactical); transition: stroke 0.3s, filter 0.3s; }
.perc #output-node text.value { fill: var(--fog); transition: fill 0.3s; }
.perc #output-node.firing .node-fill {
  fill: rgba(0,255,102,0.18);
}
.perc #output-node.firing .node-stroke {
  stroke: var(--term);
  filter: drop-shadow(0 0 10px rgba(0,255,102,0.85));
}
.perc #output-node.firing text.value { fill: var(--term); }

/* neon ripple — expanding ring emitted while firing */
.perc .ripple {
  fill: none;
  stroke: var(--term);
  stroke-width: 1.5;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  animation: perc-ripple 1.1s ease-out infinite;
}
.perc #output-node:not(.firing) .ripple { animation: none; opacity: 0; }
@keyframes perc-ripple {
  0%   { r: 14px; opacity: 0.8; stroke-width: 2; }
  100% { r: 40px; opacity: 0;   stroke-width: 0.5; }
}

/* threshold gate line */
.perc line.threshold {
  stroke: var(--ash);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}
.perc .threshold-label { fill: var(--ash); font-size: 9px; letter-spacing: 0.15em; }

/* ---- Control deck ----------------------------------------- */
.perc-controls {
  display: grid;
  gap: 0.6rem;
  padding: 0.75rem 1rem 1rem;
  border-top: 1px dashed var(--tactical);
  background: rgba(0,255,102,0.02);
}
.perc-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem;
}
.perc-row-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ash);
  white-space: nowrap;
}
.perc-readout {
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  color: var(--term);
  min-width: 3.5rem;
  text-align: right;
}

/* toggle switch (binary input) */
.perc-toggle {
  position: relative;
  width: 46px;
  height: 22px;
  border: 1px solid var(--tactical);
  border-radius: 2px;
  background: var(--ink);
  cursor: pointer;
  padding: 0;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.perc-toggle::before {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 16px;
  background: var(--ash);
  transition: transform 0.2s ease, background 0.2s, box-shadow 0.2s;
}
.perc-toggle[aria-checked="true"] {
  border-color: var(--term);
  box-shadow: 0 0 8px rgba(0,255,102,0.35);
}
.perc-toggle[aria-checked="true"]::before {
  transform: translateX(26px);
  background: var(--term);
  box-shadow: 0 0 8px rgba(0,255,102,0.7);
}
.perc-toggle-val {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  font-size: 9px;
  font-family: 'Share Tech Mono', monospace;
  color: var(--ash);
  pointer-events: none;
}
.perc-toggle-val.off { left: 8px; }
.perc-toggle-val.on  { right: 8px; color: var(--term); display: none; }
.perc-toggle[aria-checked="true"] .perc-toggle-val.off { display: none; }
.perc-toggle[aria-checked="true"] .perc-toggle-val.on  { display: block; }

/* range slider — wireframe styled */
.perc-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, var(--tactical) 0%, var(--tactical) 100%);
  border: none;
  outline: none;
  cursor: pointer;
}
.perc-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px; height: 16px;
  background: var(--term);
  border: 1px solid var(--ink);
  box-shadow: 0 0 8px rgba(0,255,102,0.7);
  cursor: grab;
}
.perc-range::-moz-range-thumb {
  width: 12px; height: 16px;
  background: var(--term);
  border: 1px solid var(--ink);
  box-shadow: 0 0 8px rgba(0,255,102,0.7);
  cursor: grab;
}
.perc-range:active::-webkit-slider-thumb { cursor: grabbing; }

/* numeric sum/threshold badges */
.perc-badge {
  display: inline-block;
  border: 1px solid var(--tactical);
  padding: 0.15rem 0.4rem;
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--fog);
  font-family: 'Share Tech Mono', monospace;
}
.perc-badge.eq { color: var(--term); border-color: var(--term); }

/* ============================================================
   WIDGET 02-A · THE VANISHING GRADIENT LOOP
   ============================================================ */
.vg {
  display: flex;
  flex-direction: column;
  width: 100%;
}
.vg-svg {
  width: 100%;
  height: auto;
  display: block;
  padding: 0.5rem 0.75rem 0.25rem;
}

/* node blocks */
.vg .node-rect {
  fill: var(--inkraise);
  stroke: var(--tactical);
  stroke-width: 1.5;
  transition: stroke 0.3s ease, fill 0.3s ease, filter 0.3s ease;
}
.vg .node-label { fill: var(--ash); font-size: 9px; letter-spacing: 0.15em; font-family: 'Share Tech Mono', monospace; }
.vg .node-h     { fill: var(--fog); font-size: 12px; font-weight: 600; font-family: 'Share Tech Mono', monospace; transition: fill 0.3s; }
.vg .node-word  { fill: var(--ash); font-size: 10px; font-family: 'JetBrains Mono', monospace; opacity: 0; transition: opacity 0.3s, fill 0.3s; }
.vg .node-word.shown { opacity: 1; }

.vg .conn {
  stroke: var(--tactical);
  stroke-width: 1.5;
  transition: stroke 0.3s ease, filter 0.3s ease;
}
.vg .recur { stroke: var(--ash); stroke-width: 1; stroke-dasharray: 2 3; fill: none; opacity: 0.5; }
.vg .loopback { stroke: var(--tactical); stroke-width: 1; stroke-dasharray: 4 4; fill: none; opacity: 0.6; }
.vg .axis-note { fill: var(--ash); font-size: 8px; letter-spacing: 0.2em; font-family: 'Share Tech Mono', monospace; }

/* traveling data pulse dot */
.vg .pulse-dot { will-change: transform; }
.vg .pulse-dot circle {
  fill: var(--term);
  transition: fill 0.3s ease, r 0.3s ease;
  filter: drop-shadow(0 0 5px rgba(0,255,102,0.8));
}

/* control deck */
.vg-controls {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 0.75rem 1rem 1rem;
  border-top: 1px dashed var(--tactical);
  background: rgba(0,255,102,0.02);
}
.vg-readout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.vg-readout-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ash);
}
.vg-readout-val {
  font-family: 'Share Tech Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--term);
  transition: color 0.3s;
}
.vg-cells {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.35rem;
}
.vg-cell {
  border: 1px solid var(--tactical);
  padding: 0.3rem 0.2rem;
  text-align: center;
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  color: var(--ash);
  background: rgba(0,255,102,0.02);
  transition: color 0.3s, border-color 0.3s, box-shadow 0.3s, background 0.3s;
}
.vg-cell.passed {
  color: var(--term);
  border-color: var(--term);
  box-shadow: 0 0 6px rgba(0,255,102,0.25);
}
/* dim cells (deeper nodes) use a progressively dimmer green */
.vg-cell.dim { color: var(--fog); border-color: var(--tactical); }
.vg-actions { display: flex; gap: 0.5rem; align-items: center; }
.vg-btn {
  flex: 1;
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--term);
  background: rgba(0,255,102,0.04);
  border: 1px solid var(--term);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, color 0.2s;
}
.vg-btn:hover { background: rgba(0,255,102,0.12); box-shadow: 0 0 10px rgba(0,255,102,0.3); }
.vg-btn:disabled { color: var(--ash); border-color: var(--tactical); cursor: not-allowed; box-shadow: none; background: transparent; }
.vg-btn.ghost { color: var(--fog); border-color: var(--tactical); background: transparent; flex: 0 0 auto; }
.vg-btn.ghost:hover { color: var(--term); border-color: var(--term); background: rgba(0,255,102,0.06); }
.vg-caption {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ash);
  font-family: 'Share Tech Mono', monospace;
  min-height: 1.2em;
}
.vg-caption.warn { color: var(--term); }

/* reduced-motion: snap transitions off so the stream plays quickly */
.vg-svg.reduced * { transition: none !important; }

/* ============================================================
   WIDGET 03-A · VECTOR MATH SPACE
   ============================================================ */
.vm {
  display: flex;
  flex-direction: column;
  width: 100%;
}
.vm-svg {
  width: 100%;
  height: auto;
  display: block;
  padding: 0.5rem 0.75rem 0.25rem;
}

/* grid + axes */
.vm .grid-line { stroke: rgba(0,255,102,0.06); stroke-width: 1; }
.vm .grid-major { stroke: rgba(0,255,102,0.12); stroke-width: 1; }
.vm .axis { stroke: var(--tactical); stroke-width: 1; }
.vm .tick-text { fill: var(--ash); font-size: 8px; font-family: 'Share Tech Mono', monospace; letter-spacing: 0.1em; }
.vm .axis-label { fill: var(--fog); font-size: 9px; font-family: 'Share Tech Mono', monospace; letter-spacing: 0.2em; }
.vm .frame-note { fill: var(--ash); font-size: 8px; letter-spacing: 0.2em; font-family: 'Share Tech Mono', monospace; }

/* origin crosshair */
.vm .origin-cross { stroke: var(--term); stroke-width: 1; }

/* reference vectors (Man / Woman from origin) — faint dotted */
.vm .ref-vec {
  stroke: var(--ash);
  stroke-width: 1;
  stroke-dasharray: 1.5 3;
  opacity: 0.55;
}
.vm .ref-label { fill: var(--ash); font-size: 9px; font-family: 'Share Tech Mono', monospace; }

/* construction vectors */
.vm .vec {
  stroke-width: 2;
  fill: none;
}
.vm .vec-king {
  stroke: var(--term);
  filter: drop-shadow(0 0 4px rgba(0,255,102,0.7));
}
.vm .vec-sub {
  stroke: var(--fog);
  stroke-width: 1.5;
  stroke-dasharray: 4 4;
}
.vm .vec-add {
  stroke: var(--term);
  filter: drop-shadow(0 0 5px rgba(0,255,102,0.8));
}

/* point markers + labels */
.vm .pt-label {
  fill: var(--fog);
  font-size: 10px;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  opacity: 0;
  transition: opacity 0.3s;
}
.vm .pt-label.shown { opacity: 1; }
.vm .pt-label.king { fill: var(--term); }
.vm .pt-label.queen { fill: var(--term); }
.vm .pt-label.mid { fill: var(--fog); font-size: 9px; font-weight: 400; }

.vm .pt-dot {
  fill: var(--term);
  opacity: 0;
  transition: opacity 0.3s;
}
.vm .pt-dot.shown { opacity: 1; }

/* Queen target + radar ping */
.vm #queen-target {
  fill: none;
  stroke: var(--ash);
  stroke-width: 1;
  stroke-dasharray: 2 2;
  opacity: 0.5;
  transition: stroke 0.4s, opacity 0.4s;
}
.vm #queen.found #queen-target {
  stroke: var(--term);
  opacity: 1;
}
.vm .ping {
  fill: none;
  stroke: var(--term);
  stroke-width: 1.5;
  opacity: 0;
}
.vm #queen.found .ping {
  animation: vm-ping 1.8s ease-out infinite;
}
.vm #queen.found .ping.p2 { animation-delay: 0.6s; }
.vm #queen.found .ping.p3 { animation-delay: 1.2s; }
@keyframes vm-ping {
  0%   { r: 6px;  opacity: 0.85; stroke-width: 2; }
  100% { r: 38px; opacity: 0;    stroke-width: 0.5; }
}

/* control deck */
.vm-controls {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 0.75rem 1rem 1rem;
  border-top: 1px dashed var(--tactical);
  background: rgba(0,255,102,0.02);
}
.vm-equation {
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ash);
  text-align: center;
  min-height: 1.4em;
}
.vm-equation .op { color: var(--fog); }
.vm-equation .res { color: var(--term); font-weight: 600; }
.vm-equation .match {
  color: var(--term);
  font-size: 10px;
  border: 1px solid var(--term);
  padding: 0 0.3rem;
  margin-left: 0.3rem;
  box-shadow: 0 0 6px rgba(0,255,102,0.3);
}
.vm-actions { display: flex; gap: 0.5rem; }
.vm-btn {
  flex: 1;
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--term);
  background: rgba(0,255,102,0.04);
  border: 1px solid var(--term);
  padding: 0.55rem 0.6rem;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, color 0.2s;
}
.vm-btn:hover { background: rgba(0,255,102,0.12); box-shadow: 0 0 10px rgba(0,255,102,0.3); }
.vm-btn:disabled { color: var(--ash); border-color: var(--tactical); cursor: not-allowed; box-shadow: none; background: transparent; }
.vm-btn.ghost { color: var(--fog); border-color: var(--tactical); background: transparent; flex: 0 0 auto; }
.vm-btn.ghost:hover { color: var(--term); border-color: var(--term); background: rgba(0,255,102,0.06); }
.vm-legend {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--ash);
  font-family: 'Share Tech Mono', monospace;
}
.vm-legend span { display: inline-flex; align-items: center; gap: 0.3rem; }
.vm-legend i { display: inline-block; width: 16px; height: 0; }
.vm-legend .lg-solid { border-top: 2px solid var(--term); box-shadow: 0 0 4px rgba(0,255,102,0.6); }
.vm-legend .lg-dash  { border-top: 1.5px dashed var(--fog); }
.vm-legend .lg-ref   { border-top: 1px dotted var(--ash); }

/* ============================================================
   WIDGET 04-A · THE SELF-ATTENTION MATRIX
   ============================================================ */
.attn { display: flex; flex-direction: column; width: 100%; }
.attn-canvas {
  position: relative;
  padding-top: 58px;            /* arch space above the sentence */
  padding-bottom: 6px;
  margin: 0 0.25rem;
}
.attn-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}
.attn-sentence {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.4rem;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  line-height: 1.5;
  color: var(--fog);
  position: relative;
  z-index: 1;
}
.attn-token {
  padding: 0.1rem 0.35rem;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: color 0.2s, border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.attn-token.src {
  color: var(--term);
  border-color: var(--term);
  box-shadow: 0 0 8px rgba(0,255,102,0.35);
  cursor: crosshair;
  font-weight: 600;
}
.attn-token.tgt { color: var(--fog); border-color: var(--tactical); }
.attn-token.lit.animal { color: var(--term); border-color: var(--term); box-shadow: 0 0 10px rgba(0,255,102,0.6); }
.attn-token.lit.street { color: var(--ash); border-color: var(--ash); }

.attn-line { fill: none; stroke-linecap: round; }
.attn-line.thick {
  stroke: var(--term);
  stroke-width: 2.5;
  filter: drop-shadow(0 0 5px rgba(0,255,102,0.85));
  animation: attn-pulse 1.6s ease-in-out infinite;
}
.attn-line.thin {
  stroke: var(--ash);
  stroke-width: 1;
  stroke-dasharray: 3 3;
  opacity: 0.7;
}
@keyframes attn-pulse {
  0%, 100% { opacity: 0.85; }
  50%      { opacity: 1; }
}
.attn-dot { fill: var(--term); }
.attn-dot.bright { filter: drop-shadow(0 0 6px rgba(0,255,102,0.9)); animation: attn-pulse 1.6s ease-in-out infinite; }
.attn-dot.dim { fill: var(--ash); opacity: 0.7; }

.attn-controls {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0.75rem 1rem 1rem;
  border-top: 1px dashed var(--tactical);
  background: rgba(0,255,102,0.02);
}
.attn-readout {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--ash);
  font-family: 'Share Tech Mono', monospace;
}
.attn-readout b { color: var(--term); }
.attn-weights { display: flex; flex-direction: column; gap: 0.35rem; }
.attn-wrow {
  display: grid;
  grid-template-columns: 7rem 1fr 2.5rem;
  align-items: center;
  gap: 0.5rem;
  font-size: 10px;
  font-family: 'Share Tech Mono', monospace;
  color: var(--fog);
}
.attn-wbar {
  height: 8px;
  border: 1px solid var(--tactical);
  background: rgba(0,255,102,0.03);
  overflow: hidden;
}
.attn-wbar i {
  display: block;
  height: 100%;
  background: var(--term);
  box-shadow: 0 0 6px rgba(0,255,102,0.5);
  transition: width 0.3s ease;
}
.attn-wrow.dim .attn-wbar i { background: var(--ash); box-shadow: none; }
.attn-wrow .pct { text-align: right; color: var(--term); }
.attn-wrow.dim .pct { color: var(--ash); }

/* ============================================================
   WIDGET 05-A · THE TOKEN PREDICTOR & REWARD LOOP
   ============================================================ */
.llm { display: grid; grid-template-columns: 1fr; gap: 0.6rem; width: 100%; }
@media (min-width: 640px) { .llm { grid-template-columns: 1.8fr 1fr; } }

.llm-main { display: flex; flex-direction: column; gap: 0.5rem; min-width: 0; }

.llm-prompt {
  display: flex;
  gap: 0.4rem;
  align-items: stretch;
}
.llm-input {
  flex: 1;
  min-width: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--term);
  background: var(--ink);
  border: 1px solid var(--tactical);
  padding: 0.45rem 0.6rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.llm-input:focus { border-color: var(--term); box-shadow: 0 0 8px rgba(0,255,102,0.3); }
.llm-input::placeholder { color: var(--ash); }

.llm-btn {
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--term);
  background: rgba(0,255,102,0.04);
  border: 1px solid var(--term);
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s, box-shadow 0.2s, color 0.2s;
}
.llm-btn:hover { background: rgba(0,255,102,0.12); box-shadow: 0 0 10px rgba(0,255,102,0.3); }
.llm-btn:disabled { color: var(--ash); border-color: var(--tactical); cursor: not-allowed; box-shadow: none; background: transparent; }

.llm-terminal {
  border: 1px solid var(--tactical);
  background: var(--ink);
  padding: 0.6rem 0.75rem;
  min-height: 130px;
  max-height: 180px;
  overflow-y: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.6;
  position: relative;
}
.llm-terminal::before {
  content: "LLM // STREAM";
  position: absolute;
  top: -1px; left: 0.6rem;
  transform: translateY(-50%);
  background: var(--ink);
  padding: 0 0.4rem;
  font-size: 8px;
  letter-spacing: 0.25em;
  color: var(--tactical);
}
.llm-prompt-line { color: var(--ash); }
.llm-prompt-line .ps1 { color: var(--term); }
.llm-output { color: var(--term); text-shadow: 0 0 6px rgba(0,255,102,0.25); word-break: break-word; }
.llm-output .tk { white-space: pre-wrap; }
.llm-cursor {
  display: inline-block;
  width: 7px; height: 14px;
  background: var(--term);
  vertical-align: -2px;
  margin-left: 1px;
  animation: llm-blink 1s steps(1) infinite;
}
.llm-cursor.idle { animation: none; opacity: 0.5; }
@keyframes llm-blink { 50% { opacity: 0; } }

.llm-reward {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.6rem;
  border: 1px dashed var(--tactical);
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--ash);
}
.llm-reward .lbl { color: var(--fog); }
.llm-thumb {
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--fog);
  background: transparent;
  border: 1px solid var(--tactical);
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.llm-thumb:hover { color: var(--term); border-color: var(--term); box-shadow: 0 0 8px rgba(0,255,102,0.3); }
.llm-thumb.good.active { color: var(--term); border-color: var(--term); box-shadow: 0 0 8px rgba(0,255,102,0.4); }
.llm-thumb.bad.active  { color: var(--ash); border-color: var(--ash); }
.llm-reward-val { margin-left: auto; color: var(--term); }

/* sidebar */
.llm-sidebar {
  border: 1px solid var(--tactical);
  background: rgba(0,255,102,0.02);
  padding: 0.6rem 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 0;
}
.llm-side-label {
  font-family: 'Share Tech Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.25em;
  color: var(--tactical);
  display: flex;
  justify-content: space-between;
}
.llm-side-label .step { color: var(--ash); }
.llm-bars { display: flex; flex-direction: column; gap: 0.45rem; }
.llm-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
}
.llm-bar .row {
  display: flex;
  justify-content: space-between;
  color: var(--fog);
}
.llm-bar .tok { color: var(--term); }
.llm-bar.alt .tok { color: var(--ash); }
.llm-bar.alt .pct { color: var(--ash); }
.llm-bar .pct { color: var(--term); }
.llm-bar .track {
  height: 8px;
  border: 1px solid var(--tactical);
  background: rgba(0,255,102,0.03);
  overflow: hidden;
}
.llm-bar .fill {
  display: block;
  height: 100%;
  background: var(--term);
  box-shadow: 0 0 6px rgba(0,255,102,0.5);
  width: 0;
  transition: width 0.25s ease;
}
.llm-bar.alt .fill { background: var(--ash); box-shadow: none; }