frontend/src/components/BrainProcess.css

/* ═══════════════════════════════════════════════
   BrainProcess — Cognitive Architecture Panel
   ═══════════════════════════════════════════════ */

.bp {
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 22px 20px 28px;
}

.bp::-webkit-scrollbar { width: 3px; }
.bp::-webkit-scrollbar-thumb { background: var(--border-1); border-radius: 2px; }

/* ── Section ── */
.bp-section { flex-shrink: 0; }

/* Italic serif section heading — the key typographic choice */
.bp-sh {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--text-1);
  letter-spacing: 0.01em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-0);
}

/* ══════════════════════════════════════
   Pipeline — 3D depth stack
   ══════════════════════════════════════ */
.bp-pipeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  perspective: 900px;
  perspective-origin: 50% 0%;
}

.bp-stage-wrap { display: flex; flex-direction: column; }

.bp-stage {
  position: relative;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-left: 3px solid var(--clr, var(--border-1));
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: transform 0.35s cubic-bezier(0.23, 1, 0.320, 1), box-shadow 0.35s ease,
              border-color 0.35s ease, background 0.35s ease;
  overflow: hidden;
  transform: translateZ(0);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 4px 16px rgba(0,0,0,0.06);
}

[data-theme="dark"] .bp-stage {
  background: rgba(20, 20, 40, 0.2);
  border-color: rgba(255, 255, 255, 0.08);
}

/* Active: lift toward viewer */
.bp-stage.active {
  background: rgba(255, 255, 255, 0.28);
  border-color: var(--clr);
  transform: perspective(600px) translateZ(12px) scale(1.01);
  box-shadow: var(--glow-pulse),
              0 0 0 1px rgba(255, 255, 255, 0.15) inset,
              0 8px 24px rgba(0,0,0,0.1);
  z-index: 2;
}

[data-theme="dark"] .bp-stage.active {
  background: rgba(20, 20, 40, 0.35);
  border-color: var(--clr);
}

.bp-stage.dim { opacity: 0.42; }

.bp-stage.done {
  opacity: 0.7;
  border-left-color: var(--calm);
}

/* Pulsing aura ring */
.bp-stage-aura {
  position: absolute;
  inset: -2px;
  border-radius: 11px;
  border: 1.5px solid var(--clr);
  animation: aura-pulse 1.8s infinite;
  pointer-events: none;
}

@keyframes aura-pulse {
  0%   { transform: scale(1);    opacity: 0.7; }
  100% { transform: scale(1.04); opacity: 0; }
}

/* Stage number badge */
.bp-stage-badge {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 700;
  color: var(--bg-0);
  flex-shrink: 0;
  letter-spacing: 0.04em;
  transition: filter 0.3s ease;
}

.bp-stage.active .bp-stage-badge {
  filter: drop-shadow(0 0 6px var(--clr));
}

.bp-stage-body { flex: 1; min-width: 0; }

.bp-stage-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-0);
  letter-spacing: 0.01em;
  margin-bottom: 2px;
  transition: color 0.3s;
}

.bp-stage.active .bp-stage-name { color: var(--clr); }

.bp-stage-region {
  font-size: 0.48rem;
  color: var(--text-2);
  letter-spacing: 0.18em;
  margin-bottom: 6px;
}

.bp-stage-desc {
  font-size: 0.7rem;
  color: var(--text-2);
  line-height: 1.55;
  transition: color 0.3s;
}

.bp-stage.active .bp-stage-desc { color: var(--text-1); }

.bp-stage-done {
  font-size: 0.75rem;
  color: var(--calm);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 4px;
}

/* Arrow connector */
.bp-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3px 0 3px 14px; /* align with badge center */
  gap: 0;
  pointer-events: none;
}

.bp-arrow-line {
  width: 1px;
  height: 14px;
  background: var(--border-0);
  transition: background 0.5s ease;
}

.bp-arrow.pulse .bp-arrow-line {
  animation: line-drip 1.2s ease infinite;
}

@keyframes line-drip {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 0.9; }
}

.bp-arrow-head {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid var(--border-1);
}

/* ══════════════════════════════════════
   Memory Cards — 3D tilt
   ══════════════════════════════════════ */
.bp-mem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.bp-mem-card {
  position: relative;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  padding: 14px 14px 18px;
  overflow: hidden;
  cursor: default;
  /* 3D tilt */
  transform: perspective(600px) rotateX(var(--tx, 0deg)) rotateY(var(--ty, 0deg));
  transform-style: preserve-3d;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.3s ease;
  will-change: transform;
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 4px 16px rgba(0,0,0,0.06);
}

[data-theme="dark"] .bp-mem-card {
  background: rgba(20, 20, 40, 0.2);
  border-color: rgba(255, 255, 255, 0.08);
}

.bp-mem-card:hover {
  box-shadow: var(--glow-pulse), 0 0 0 1px rgba(255, 255, 255, 0.2) inset, 0 10px 28px rgba(0,0,0,0.1);
  border-color: var(--clr);
  z-index: 1;
  background: rgba(255, 255, 255, 0.28);
}

[data-theme="dark"] .bp-mem-card:hover {
  background: rgba(20, 20, 40, 0.35);
}

/* Specular sheen that moves with tilt */
.bp-mem-shine {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at calc(50% + var(--ty, 0deg) * 3) calc(50% - var(--tx, 0deg) * 3),
    rgba(255,255,255,0.07) 0%,
    transparent 60%
  );
  pointer-events: none;
  border-radius: inherit;
}

[data-theme="light"] .bp-mem-shine {
  background: radial-gradient(
    circle at 50% 30%,
    rgba(255,255,255,0.4) 0%,
    transparent 60%
  );
}

/* Per-layer left accent */
.bp-mem-card[data-layer="sensory"]  { border-left: 3px solid #4ecdc4; }
.bp-mem-card[data-layer="semantic"] { border-left: 3px solid #a87ecf; }
.bp-mem-card[data-layer="episodic"] { border-left: 3px solid #d4a853; }
.bp-mem-card[data-layer="working"]  { border-left: 3px solid #e07a38; }

.bp-mem-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 5px;
}

.bp-mem-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-0);
  letter-spacing: 0.01em;
}

.bp-mem-count {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  filter: drop-shadow(0 0 6px currentColor);
}

.bp-mem-tech {
  font-size: 0.46rem;
  letter-spacing: 0.2em;
  color: var(--clr);
  margin-bottom: 3px;
}

.bp-mem-detail {
  font-size: 0.65rem;
  color: var(--text-2);
  line-height: 1;
}

.bp-mem-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  opacity: 0.22;
  border-radius: 0 0 12px 12px;
}

/* ══════════════════════════════════════
   Reflection
   ══════════════════════════════════════ */
.bp-reflection {
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  padding: 16px 18px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  animation: soma-rise 0.4s ease both;
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 4px 16px rgba(0,0,0,0.06);
}

[data-theme="dark"] .bp-reflection {
  background: rgba(20, 20, 40, 0.2);
  border-color: rgba(255, 255, 255, 0.08);
}

.bp-ref-mark {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--pulse);
  opacity: 0.5;
  line-height: 0.7;
  flex-shrink: 0;
  margin-top: 6px;
  font-style: italic;
}

.bp-reflection p {
  font-size: 0.8rem;
  color: var(--text-0);
  line-height: 1.7;
  font-style: italic;
}

/* ══════════════════════════════════════
   Traces
   ══════════════════════════════════════ */
.bp-traces {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.bp-trace {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 7px 10px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  animation: soma-rise 0.25s ease both;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-theme="dark"] .bp-trace {
  background: rgba(20, 20, 40, 0.15);
  border-color: rgba(255, 255, 255, 0.06);
}

.bp-trace-ph {
  font-size: 0.44rem;
  letter-spacing: 0.12em;
  padding: 2px 6px;
  border-radius: 3px;
  flex-shrink: 0;
  margin-top: 2px;
  font-weight: 700;
}

.bp-trace.perception  .bp-trace-ph { background: rgba(212,168,83,0.15);  color: #d4a853; }
.bp-trace.recall      .bp-trace-ph { background: rgba(78,205,196,0.15);  color: #4ecdc4; }
.bp-trace.association .bp-trace-ph { background: rgba(168,126,207,0.15); color: #a87ecf; }
.bp-trace.synthesis   .bp-trace-ph,
.bp-trace.reasoning   .bp-trace-ph { background: rgba(224,122,56,0.15);  color: #e07a38; }

.bp-trace-msg {
  font-size: 0.65rem;
  color: var(--text-1);
  line-height: 1.55;
  font-family: var(--font-mono);
}

/* ══════════════════════════════════════
   Sparks
   ══════════════════════════════════════ */
.bp-spark-sub {
  font-size: 0.46rem;
  letter-spacing: 0.15em;
  color: var(--text-2);
  margin-bottom: 10px;
  margin-top: -8px;
}

.bp-sparks { display: flex; flex-direction: column; gap: 8px; }

.bp-spark {
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 12px;
  padding: 12px 14px;
  animation: soma-flip-in 0.4s ease both;
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  transition: all 0.3s ease;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 4px 16px rgba(0,0,0,0.06);
}

[data-theme="dark"] .bp-spark {
  background: rgba(20, 20, 40, 0.2);
  border-color: rgba(255, 255, 255, 0.08);
}

.bp-spark:hover {
  background: rgba(255, 255, 255, 0.28);
}

[data-theme="dark"] .bp-spark:hover {
  background: rgba(20, 20, 40, 0.35);
}

.bp-spark-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 7px;
}

.bp-spark-tag {
  font-size: 0.44rem;
  letter-spacing: 0.1em;
  color: var(--pulse);
  background: var(--border-0);
  border: 1px solid var(--border-1);
  padding: 2px 7px;
  border-radius: 3px;
}

.bp-spark p {
  font-size: 0.72rem;
  color: var(--text-1);
  line-height: 1.55;
}

/* ══════════════════════════════════════
   Idle
   ══════════════════════════════════════ */
.bp-idle {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 20px 10px;
  text-align: center;
}

/* Nested 3D rings as idle indicator */
.bp-idle-fig {
  width: 72px;
  height: 72px;
  position: relative;
  transform-style: preserve-3d;
  animation: idle-fig-spin 14s linear infinite;
}

@keyframes idle-fig-spin {
  from { transform: perspective(80px) rotateY(0deg)   rotateX(20deg); }
  to   { transform: perspective(80px) rotateY(360deg) rotateX(20deg); }
}

.bp-idle-r1, .bp-idle-r2, .bp-idle-r3 {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--pulse);
  opacity: 0.35;
}
.bp-idle-r1 { inset: 6px; transform: rotateX(0deg); }
.bp-idle-r2 { inset: 6px; transform: rotateX(60deg); }
.bp-idle-r3 { inset: 6px; transform: rotateX(-60deg); }

.bp-idle-dot {
  position: absolute;
  inset: 26px;
  background: var(--pulse);
  border-radius: 50%;
  opacity: 0.55;
  animation: soma-pulse 4s infinite ease-in-out;
  filter: blur(1px);
  box-shadow: 0 0 12px var(--pulse);
}

.bp-idle-text {
  font-size: 0.72rem;
  color: var(--text-2);
  line-height: 1.8;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
}

.bp-idle-key {
  align-self: stretch;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 4px 16px rgba(0,0,0,0.06);
}

[data-theme="dark"] .bp-idle-key {
  background: rgba(20, 20, 40, 0.2);
  border-color: rgba(255, 255, 255, 0.08);
}

.bp-idle-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bp-idle-pip {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  filter: drop-shadow(0 0 4px currentColor);
}

.bp-idle-lbl {
  font-size: 0.52rem;
  color: var(--text-1);
  letter-spacing: 0.12em;
}