/* ============================================================
   blinds-control.css · v2 — PREMIUM EDITION
   Unique teal/cyan engineering aesthetic
   Blind-slat motifs · ambient glows · bento grid · glassmorphism
   ============================================================ */

/* ── PAGE-LEVEL CUSTOM PROPERTIES ── */
:root {
  --bc-accent: #0ea5e9;
  --bc-accent-2: #06b6d4;
  --bc-accent-soft: rgba(14, 165, 233, 0.10);
  --bc-accent-glow: rgba(14, 165, 233, 0.25);
  --bc-accent-mid: rgba(14, 165, 233, 0.45);
  --bc-warm: #f59e0b;
  --bc-warm-soft: rgba(245, 158, 11, 0.10);
  --bc-green: #10b981;
  --bc-green-soft: rgba(16, 185, 129, 0.08);
  --bc-violet: #8b5cf6;
  --bc-violet-soft: rgba(139, 92, 246, 0.08);
  --bc-red: #ef4444;
  --bc-red-soft: rgba(239, 68, 68, 0.08);
  --bc-grad: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 50%, #0891b2 100%);
  --bc-grad-warm: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --bc-glass: rgba(255, 255, 255, 0.55);
  --bc-glass-border: rgba(255, 255, 255, 0.18);
  --bc-glass-dark: rgba(0, 0, 0, 0.35);
  --bc-glass-border-dark: rgba(255, 255, 255, 0.08);
}
html[data-theme="dark"] {
  --bc-glass: rgba(30, 30, 40, 0.65);
  --bc-glass-border: rgba(255, 255, 255, 0.06);
  --bc-accent-soft: rgba(14, 165, 233, 0.12);
  --bc-accent-glow: rgba(14, 165, 233, 0.20);
}

/* Premium scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bc-accent); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--bc-accent-2); }

/* ============================================================
   GLOBAL BLOCK PATTERN
   ============================================================ */
.page > .block { padding: 100px 0 32px; position: relative; }
.page > .block + .block { padding-top: 64px; }
.page > .bc-hero + .block { padding-top: 100px; }

.block-head { margin-bottom: 40px; position: relative; }
.block-head .bh-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule);
  position: relative;
  margin-bottom: 22px;
}
.block-head .bh-row::after {
  content: "";
  position: absolute;
  bottom: -1px; left: 0;
  height: 2px; width: 0;
  background: var(--bc-grad);
  transition: width 1s cubic-bezier(0.22,1,0.36,1) 0.15s;
}
.block-head .in .bh-row::after,
[data-reveal].in .block-head .bh-row::after { width: 100%; }

.bh-marker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bc-accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.bh-marker::before {
  content: "";
  width: 28px; height: 2px;
  background: var(--bc-grad);
  display: inline-block;
  border-radius: 2px;
}
.bh-meta {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.bh-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.6vw, 50px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0;
  max-width: 26ch;
  color: var(--ink);
  text-wrap: pretty;
}
.bh-lede {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 64ch;
  margin: 16px 0 0;
}
.bh-lede b, .bh-lede strong { color: var(--ink); font-weight: 500; }

.two-col-prose { columns: 2; column-gap: 56px; max-width: 1024px; }
.two-col-prose p {
  break-inside: avoid;
  margin: 0 0 16px;
  font-size: 15px; line-height: 1.75;
  color: var(--ink-2); max-width: none;
}
.two-col-prose p:last-child { margin-bottom: 0; }
.two-col-prose em { font-style: normal; color: var(--bc-accent); font-weight: 500; }

/* ============================================================
   HERO — Full-width dramatic gradient
   ============================================================ */
.bc-hero {
  position: relative;
  padding: 48px 0 72px;
  border-bottom: none;
  overflow: hidden;
}
/* Ambient glow blob behind hero */
.bc-hero::before {
  content: "";
  position: absolute;
  top: -120px; right: -80px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--bc-accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  animation: heroGlowFloat 8s ease-in-out infinite alternate;
}
.bc-hero::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--bc-accent) 30%, var(--bc-accent) 70%, transparent 100%);
  opacity: 0.3;
}
@keyframes heroGlowFloat {
  0% { transform: translate(0, 0) scale(1); opacity: 0.6; }
  50% { transform: translate(-25px, 18px) scale(1.08); opacity: 0.5; }
  100% { transform: translate(-40px, 30px) scale(1.15); opacity: 0.35; }
}
/* Secondary ambient glow for depth */
.bc-hero .bc-hero-grid::before {
  content: "";
  position: absolute;
  bottom: -80px; left: -60px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  animation: heroGlowFloat2 10s ease-in-out infinite alternate;
}
@keyframes heroGlowFloat2 {
  0% { transform: translate(0, 0) scale(1); opacity: 0.4; }
  100% { transform: translate(30px, -20px) scale(1.2); opacity: 0.2; }
}

.bc-hero .crumbs { margin-bottom: 44px; position: relative; z-index: 1; }
.bc-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.block-marker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bc-accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.block-marker::before {
  content: "";
  width: 28px; height: 2px;
  background: var(--bc-grad);
  border-radius: 2px;
}
.bc-title {
  font-size: clamp(38px, 4.8vw, 76px);
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin: 16px 0 20px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--ink) 0%, var(--ink) 35%, var(--bc-accent) 50%, var(--ink) 65%, var(--ink) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  word-wrap: break-word;
  overflow-wrap: break-word;
  animation: titleShimmer 5s ease-in-out infinite;
}
@keyframes titleShimmer {
  0%, 100% { background-position: 200% 0; }
  50% { background-position: -200% 0; }
}
html[data-theme="dark"] .bc-title {
  background: linear-gradient(135deg, #fff 0%, #e0e0e0 60%, var(--bc-accent) 100%);
  -webkit-background-clip: text; background-clip: text;
}
.bc-title .bc-dot { -webkit-text-fill-color: var(--bc-accent); }
.bc-tagline {
  font-family: var(--font-display);
  font-size: clamp(18px, 1.6vw, 23px);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.4;
  color: var(--ink);
  max-width: 36ch;
  margin: 0 0 16px;
}
.bc-sub {
  font-size: 15.5px; line-height: 1.65;
  color: var(--ink-2); max-width: 56ch;
}
.bc-sub strong { color: var(--bc-accent); font-weight: 600; }
.bc-hero-meta {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border-radius: 8px;
  overflow: hidden;
}
.bc-hero-meta .m-cell {
  padding: 18px 16px;
  font-family: var(--font-mono);
  transition: background 0.3s, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  background: var(--paper);
  position: relative;
}
.bc-hero-meta .m-cell:hover {
  background: var(--bc-accent-soft);
  transform: scale(1.02);
  z-index: 1;
}
.bc-hero-meta .m-cell .k {
  display: block;
  font-size: 10px; letter-spacing: 0.12em;
  color: var(--ink-3); text-transform: uppercase;
  margin-bottom: 6px; font-weight: 500;
}
.bc-hero-meta .m-cell .v {
  font-family: var(--font-display);
  font-size: 17px; letter-spacing: -0.015em;
  color: var(--ink); font-weight: 600;
}
.bc-hero-meta .m-cell .v.live {
  color: var(--bc-green);
  display: inline-flex; align-items: center; gap: 8px;
}
.bc-hero-meta .m-cell .v.live::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--bc-green);
  animation: pulseDot 1.6s ease-in-out infinite;
  box-shadow: 0 0 6px var(--bc-green);
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.7); }
}

/* Hero photo */
.bc-hero-photo {
  margin: 0;
  position: relative;
  padding: 24px;
  background: var(--bc-glass);
  backdrop-filter: blur(20px) saturate(130%);
  -webkit-backdrop-filter: blur(20px) saturate(130%);
  border: 1px solid var(--bc-glass-border);
  border-radius: 16px;
  overflow: hidden;
  isolation: isolate;
  box-shadow: 0 20px 60px rgba(0,0,0,0.08), 0 0 40px var(--bc-accent-soft);
}
.bc-hero-photo::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, var(--bc-accent-glow), transparent 50%, var(--bc-accent-glow));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 3;
}
.bc-hero-photo img {
  display: block;
  width: 100%; height: auto;
  max-height: 520px;
  object-fit: contain;
  position: relative; z-index: 2;
  border-radius: 8px;
  filter: drop-shadow(0 16px 24px rgba(0,0,0,0.12));
  transition: transform 0.7s cubic-bezier(0.22,1,0.36,1), filter 0.5s;
  animation: heroFloat 6s ease-in-out infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  25% { transform: translateY(-6px) rotate(0.3deg); }
  75% { transform: translateY(4px) rotate(-0.2deg); }
}
.bc-hero-photo:hover img {
  transform: scale(1.04) rotate(-0.5deg) translateY(-4px);
  filter: drop-shadow(0 24px 32px rgba(0,0,0,0.18)) brightness(1.02);
}
html[data-theme="dark"] .bc-hero-photo img {
  filter: drop-shadow(0 16px 24px rgba(0,0,0,0.5)) brightness(0.95);
}
.bc-hero-photo figcaption {
  position: relative; z-index: 2;
  margin-top: 16px; padding-top: 12px;
  border-top: 1px solid color-mix(in srgb, var(--rule) 60%, transparent);
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: 0.06em;
  color: var(--ink-3);
  display: flex; flex-direction: column; gap: 4px;
}
.bc-hero-photo figcaption b { color: var(--bc-accent); font-weight: 600; }
.bc-hero-photo figcaption .dim { color: var(--ink-3); opacity: 0.85; }

/* ============================================================
   ARCHITECTURE DIAGRAM (glowing)
   ============================================================ */
.arch-diagram {
  border: 1px solid var(--rule);
  background: radial-gradient(ellipse at 50% 50%, var(--paper) 0%, var(--paper-2) 100%);
  padding: 32px 28px 24px;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
}
.arch-diagram::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--bc-grad);
  border-radius: 12px 12px 0 0;
}
.arch-diagram svg { width: 100%; height: auto; display: block; color: var(--ink-3); }
.arch-node rect {
  fill: var(--paper);
  stroke: var(--rule);
  stroke-width: 1.2;
  rx: 6;
  transition: fill 0.3s, stroke 0.3s, filter 0.3s;
}
.arch-node.sensor   rect { stroke: var(--ink-3); }
.arch-node.actuator rect { stroke: var(--bc-accent); }
.arch-node.cloud    rect { stroke: var(--ink-3); stroke-dasharray: 4 3; }
.arch-node.mcu      rect { fill: var(--bc-accent); stroke: var(--bc-accent); filter: drop-shadow(0 0 12px var(--bc-accent-glow)); }
.arch-node.mcu .n-title,
.arch-node.mcu .n-sub,
.arch-node.mcu .n-pin { fill: #fff; }
.arch-node:hover rect { fill: var(--bc-accent-soft); stroke: var(--bc-accent); }
.arch-node.mcu:hover rect { fill: var(--bc-accent-2); filter: drop-shadow(0 0 20px var(--bc-accent-glow)); }

.arch-node .n-title { font-family: var(--font-display); font-size: 15px; font-weight: 700; letter-spacing: -0.010em; fill: var(--ink); }
.arch-node .n-sub   { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; fill: var(--ink-2); font-weight: 500; }
.arch-node .n-pin   { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; fill: var(--ink-3); text-transform: uppercase; font-weight: 600; }
.arch-line { fill: none; stroke: var(--ink-2); stroke-width: 1.8px; }
.arch-line.signal { stroke: var(--bc-accent); filter: drop-shadow(0 0 3px var(--bc-accent-glow)); }
.arch-line.dashed { stroke: var(--ink-2); stroke-dasharray: 4 4; opacity: 0.7; }
.arch-edge { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.06em; fill: var(--ink-2); text-transform: uppercase; font-weight: 600; }
.arch-edge.sig { fill: var(--bc-accent); }
.arch-edge.dim { fill: var(--ink-3); opacity: 0.85; }
.arch-edge-label { cursor: default; pointer-events: none; }
.arch-edge-label .e-label-bg { fill: var(--paper); stroke: var(--rule); stroke-width: 1px; rx: 6; }
.arch-node { transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1); transform-box: fill-box; transform-origin: center; }
.arch-node:hover { transform: translateY(-4px) scale(1.03); }

.arch-legend {
  display: flex; flex-wrap: wrap; gap: 18px;
  margin-top: 20px; padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.08em; color: var(--ink-3); text-transform: uppercase;
}
.arch-legend .lg { display: inline-flex; align-items: center; gap: 8px; }
.arch-legend .sw { width: 16px; height: 12px; border: 1px solid var(--rule); display: inline-block; border-radius: 3px; }
.arch-legend .sw.box-sensor   { border-color: var(--ink-3); background: var(--paper); }
.arch-legend .sw.box-actuator { border-color: var(--bc-accent); background: var(--paper); }
.arch-legend .sw.box-cloud    { border-color: var(--ink-3); background: var(--paper); border-style: dashed; }
.arch-legend .sw.box-mcu      { background: var(--bc-accent); border-color: var(--bc-accent); }
.arch-legend .sw.line         { width: 22px; height: 0; border: 0; border-top: 1.4px solid var(--ink-3); }
.arch-legend .sw.line.dashed  { border-top: 1.4px dashed var(--ink-3); }

/* ============================================================
   BENTO FEATURE GRID — unique to blinds page
   ============================================================ */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}
.bento-cell {
  padding: 28px 26px 26px;
  position: relative;
  overflow: hidden;
  background: var(--bc-glass);
  backdrop-filter: blur(16px) saturate(120%);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  border: 1px solid var(--bc-glass-border);
  border-radius: 14px;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, box-shadow;
}
/* Colored top accent bar */
.bento-cell::before {
  content: "";
  position: absolute;
  top: 0; left: 20px; right: 20px;
  height: 2px;
  background: var(--bc-grad);
  border-radius: 0 0 2px 2px;
  opacity: 0;
  transition: opacity 0.4s, left 0.5s cubic-bezier(0.22, 1, 0.36, 1), right 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
/* Ambient inner glow on hover */
.bento-cell::after {
  content: "";
  position: absolute;
  bottom: -40%; left: 50%; right: auto;
  width: 120%; height: 60%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(ellipse, var(--bc-accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s;
  z-index: 0;
}
.bento-cell:hover::before { opacity: 1; left: 0; right: 0; }
.bento-cell:hover::after { opacity: 0.5; }
.bento-cell:hover {
  border-color: var(--bc-accent);
  transform: perspective(1000px) translateY(-10px) rotateX(-1.5deg) rotateY(1.5deg) scale(1.015);
  box-shadow: 0 28px 56px rgba(0, 0, 0, 0.12), 0 0 40px var(--bc-accent-soft), inset 0 1px 0 rgba(255,255,255,0.12);
}
.bento-cell .fg-num {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.14em; color: var(--ink-3);
  position: absolute; top: 18px; right: 22px; font-weight: 500;
  transition: color 0.3s ease;
}
.bento-cell .fg-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  font-size: 20px;
  margin-bottom: 18px;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s;
  position: relative;
  z-index: 1;
}
.bento-cell:hover .fg-icon { transform: scale(1.15) rotate(-3deg); box-shadow: 0 6px 20px var(--bc-accent-glow); }

/* Unique icon backgrounds per card */
.bento-cell:nth-child(1) .fg-icon { background: var(--bc-accent-soft); color: var(--bc-accent); box-shadow: 0 0 0 1px var(--bc-accent-glow); }
.bento-cell:nth-child(2) .fg-icon { background: var(--bc-violet-soft); color: var(--bc-violet); box-shadow: 0 0 0 1px rgba(139, 92, 246, 0.15); }
.bento-cell:nth-child(3) .fg-icon { background: var(--bc-warm-soft); color: var(--bc-warm); box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.15); }
.bento-cell:nth-child(4) .fg-icon { background: var(--bc-red-soft); color: var(--bc-red); box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.15); }
.bento-cell:nth-child(5) .fg-icon { background: var(--bc-green-soft); color: var(--bc-green); box-shadow: 0 0 0 1px rgba(16, 185, 129, 0.15); }
.bento-cell:nth-child(6) .fg-icon { background: var(--bc-accent-soft); color: var(--bc-accent-2); box-shadow: 0 0 0 1px var(--bc-accent-glow); }

.bento-cell h4 {
  font-family: var(--font-display);
  font-size: 17px; letter-spacing: -0.018em;
  font-weight: 600; margin: 0 0 8px;
  color: var(--ink); max-width: 22ch;
}
.bento-cell p {
  font-size: 12.5px; color: var(--ink-2);
  line-height: 1.7; max-width: none; margin: 0;
}
.bento-cell code {
  font-family: var(--font-mono); font-size: 0.9em;
  background: var(--paper-2); padding: 1px 5px;
  border-radius: 3px; color: var(--bc-accent);
}

/* ============================================================
   LAYOUT FIGURE
   ============================================================ */
.layout-figure {
  position: relative;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 28px 28px 18px;
  overflow: hidden; margin: 0;
  border-radius: 12px;
}
.layout-figure img {
  display: block; width: 100%; height: auto;
  max-height: 520px; object-fit: contain;
  border-radius: 6px;
}
.layout-figure figcaption {
  margin-top: 14px; padding-top: 12px;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.06em; color: var(--ink-3);
}
.layout-figure figcaption b { color: var(--bc-accent); font-weight: 600; }

/* Frame ticks */
.frame-tick {
  position: absolute;
  width: 14px; height: 14px;
  border-color: var(--bc-accent);
  border-style: solid;
  z-index: 3; pointer-events: none;
  opacity: 0.5;
}
.frame-tick.tl { top: 8px; left: 8px; border-width: 2px 0 0 2px; border-radius: 3px 0 0 0; }
.frame-tick.tr { top: 8px; right: 8px; border-width: 2px 2px 0 0; border-radius: 0 3px 0 0; }
.frame-tick.bl { bottom: 8px; left: 8px; border-width: 0 0 2px 2px; border-radius: 0 0 0 3px; }
.frame-tick.br { bottom: 8px; right: 8px; border-width: 0 2px 2px 0; border-radius: 0 0 3px 0; }

/* ============================================================
   STEPPER MOTOR VIZ + INFO
   ============================================================ */
.stepper-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 24px; align-items: start;
}
.stepper-viz {
  border: 1px solid var(--rule);
  background: radial-gradient(ellipse at 50% 60%, var(--paper-2), var(--paper) 70%);
  padding: 32px 28px 0;
  position: relative; border-radius: 12px; overflow: hidden;
}
.stepper-viz::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--bc-grad); border-radius: 12px 12px 0 0;
}
.stepper-viz svg { width: 100%; height: auto; display: block; }

.motor-gear {
  transform-origin: 100px 160px;
  animation: motorSpin var(--motor-speed, 4s) linear infinite;
  animation-play-state: var(--motor-play-state, running);
  animation-direction: var(--motor-direction, normal);
}
@keyframes motorSpin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

.chain-left {
  animation: leftChainMove var(--chain-speed, 0.5s) linear infinite;
  animation-play-state: var(--motor-play-state, running);
  animation-direction: var(--motor-direction, normal);
  will-change: transform;
  transform: translateZ(0);
}
.chain-right {
  animation: rightChainMove var(--chain-speed, 0.5s) linear infinite;
  animation-play-state: var(--motor-play-state, running);
  animation-direction: var(--motor-direction, normal);
  will-change: transform;
  transform: translateZ(0);
}
@keyframes leftChainMove { 0% { transform: translateY(0px); } 100% { transform: translateY(-20px); } }
@keyframes rightChainMove { 0% { transform: translateY(0px); } 100% { transform: translateY(20px); } }

.stepper-readouts {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule);
  margin: 16px -28px 0; background: var(--paper);
  overflow: hidden;
}

.stepper-controls {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  margin: 0 -28px 0;
  border-top: 1px solid var(--rule);
  border-radius: 0 0 12px 12px;
  overflow: hidden;
}

.ctrl-btn {
  background: var(--paper);
  border: none;
  padding: 14px 12px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  font-weight: 500;
  text-align: center;
}
.ctrl-btn:hover {
  background: var(--bc-accent-soft);
  color: var(--bc-accent);
}
.ctrl-btn:active {
  transform: scale(0.97);
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.12);
}
.ctrl-btn.active {
  background: var(--bc-accent-soft);
  color: var(--bc-accent);
  font-weight: 600;
  box-shadow: inset 0 0 10px rgba(14, 165, 233, 0.12);
}
.ctrl-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--paper-2);
  color: var(--ink-3);
}
.stepper-readouts .sr {
  padding: 16px 14px; border-right: 1px solid var(--rule);
  font-family: var(--font-mono);
  display: flex; flex-direction: column; gap: 4px;
  transition: background 0.2s;
}
.stepper-readouts .sr:last-child { border-right: 0; }
.stepper-readouts .sr:hover { background: var(--bc-accent-soft); }
.stepper-readouts .sk { font-size: 9.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); font-weight: 500; }
.stepper-readouts .sv {
  font-family: var(--font-display); font-size: 22px;
  color: var(--bc-accent); font-weight: 700;
  letter-spacing: -0.02em; line-height: 1;
}
.stepper-readouts .sv i { font-family: var(--font-mono); font-style: normal; font-size: 10px; color: var(--ink-3); font-weight: 500; margin-left: 2px; }

/* Accordion */
.info-accordion { display: flex; flex-direction: column; gap: 8px; }
.acc-row {
  display: grid;
  grid-template-columns: 48px 1fr 28px;
  align-items: center; gap: 10px;
  padding: 16px 18px;
  background: var(--bc-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--bc-glass-border);
  border-radius: 10px;
  text-align: left; cursor: pointer;
  font-family: var(--font-display); font-size: 15px;
  letter-spacing: -0.012em; color: var(--ink); font-weight: 500;
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  overflow: hidden;
}
.acc-row::after {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--bc-grad);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  border-radius: 0 2px 2px 0;
}
.acc-row:hover { background: var(--bc-accent-soft); border-color: var(--bc-accent); transform: translateX(4px); }
.acc-row.open { background: var(--bc-accent-soft); border-color: var(--bc-accent); color: var(--bc-accent); }
.acc-row.open::after { transform: scaleY(1); }
.acc-row .acc-num { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--ink-3); font-weight: 600; transition: color 0.3s, transform 0.3s; }
.acc-row.open .acc-num { color: var(--bc-accent); transform: scale(1.1); }
.acc-row .acc-arrow {
  font-family: var(--font-mono); font-size: 18px; color: var(--ink-3);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.18s;
  text-align: right;
}
.acc-row.open .acc-arrow { transform: rotate(45deg) scale(1.15); color: var(--bc-accent); }
.acc-body {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows 0.45s cubic-bezier(0.22,1,0.36,1);
}
.acc-body > p {
  overflow: hidden;
  padding: 0 18px;
  font-family: var(--font-mono); font-size: 12px;
  line-height: 1.75; color: var(--ink-2); margin: 0;
  transition: padding 0.4s ease, opacity 0.4s;
  opacity: 0;
}
.acc-body > p code { color: var(--bc-accent); font-weight: 500; }
.acc-body.open { grid-template-rows: 1fr; }
.acc-body.open > p { padding: 12px 18px 16px; opacity: 1; }

/* ============================================================
   TOUCH FSM TABS — unique pill-tab design
   ============================================================ */
.touch-tabs {
  display: grid;
  grid-template-columns: 260px 1fr;
  border: 1px solid var(--rule);
  background: var(--paper);
  overflow: hidden;
  min-height: 380px;
  border-radius: 14px;
}
.touch-rail {
  border-right: 1px solid var(--rule);
  background: var(--paper-2);
  display: flex; flex-direction: column;
  position: relative;
  padding: 8px;
  gap: 4px;
}
.touch-rail-indicator {
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 0;
  background: var(--bc-accent);
  transition: transform 0.52s cubic-bezier(0.34, 1.56, 0.64, 1),
              height 0.52s cubic-bezier(0.34, 1.56, 0.64, 1),
              width 0.52s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none; z-index: 2;
  box-shadow: 0 0 12px var(--bc-accent-glow);
  border-radius: 0 4px 4px 0;
  display: none;
}
.touch-tab {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 16px 18px;
  text-align: left;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 0 10px;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  font-family: var(--font-display);
}
.touch-tab:hover {
  background: var(--bc-accent-soft);
  border-color: color-mix(in srgb, var(--bc-accent) 20%, transparent);
  transform: translateX(3px);
}
.touch-tab.active {
  background: var(--bc-accent-soft);
  border-color: var(--bc-accent);
  box-shadow: 0 0 20px var(--bc-accent-soft), inset 0 0 12px color-mix(in srgb, var(--bc-accent) 4%, transparent);
}
.touch-tab .tt-num { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; color: var(--bc-accent); font-weight: 600; grid-row: 1; transition: transform 0.3s; }
.touch-tab.active .tt-num { transform: scale(1.08); }
.touch-tab .tt-name { font-size: 17px; font-weight: 600; letter-spacing: -0.02em; color: var(--ink); grid-row: 1; transition: color 0.3s; }
.touch-tab.active .tt-name { color: var(--bc-accent); }
.touch-tab .tt-tag {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.04em;
  color: var(--ink-3); grid-column: 1 / -1; grid-row: 2;
  margin-top: 3px; text-transform: uppercase;
  transition: color 0.3s;
}
.touch-tab.active .tt-tag { color: var(--bc-accent); opacity: 0.7; }

.touch-panel { padding: 38px 44px; position: relative; }
.touch-pane { display: none; animation: paneIn 0.6s cubic-bezier(0.22,1,0.36,1) both; will-change: transform, opacity, filter; }
.touch-pane.active { display: block; }
@keyframes paneIn {
  from { opacity: 0; transform: translateY(12px) scale(0.96); filter: blur(6px); }
  to { opacity: 1; transform: none; filter: blur(0); }
}
.tp-head { margin-bottom: 16px; }
.tp-tag {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.14em; color: var(--bc-accent);
  text-transform: uppercase; display: block;
  margin-bottom: 6px; font-weight: 600;
}
.touch-pane h4 {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 32px);
  letter-spacing: -0.025em; margin: 0;
  font-weight: 600; color: var(--ink); line-height: 1.1;
}
.touch-pane > p {
  font-size: 14.5px; line-height: 1.75;
  color: var(--ink-2); max-width: 60ch; margin: 0 0 22px;
}
.touch-pane > p code, .touch-pane > p b { color: var(--ink); font-weight: 500; }
.touch-pane code { font-family: var(--font-mono); font-size: 0.92em; background: var(--paper-2); padding: 1px 6px; border-radius: 3px; }
.tp-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.tp-stats > div {
  padding: 14px 16px;
  display: flex; flex-direction: column; gap: 4px;
  background: var(--bc-glass);
  border: 1px solid var(--bc-glass-border);
  border-radius: 10px;
  transition: all 0.2s;
}
.tp-stats > div:hover { border-color: var(--bc-accent); background: var(--bc-accent-soft); }
.tp-stats .k { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); font-weight: 500; }
.tp-stats .v { font-family: var(--font-display); font-size: 14px; letter-spacing: -0.012em; color: var(--ink); font-weight: 600; }
.tp-stats .n { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-3); line-height: 1.5; }

/* ============================================================
   STATE DIAGRAM (glowing)
   ============================================================ */
.state-diagram {
  border: 1px solid var(--rule);
  background: radial-gradient(ellipse at 50% 50%, var(--paper) 0%, var(--paper-2) 100%);
  padding: 36px 32px 24px;
  position: relative; border-radius: 12px; overflow: hidden;
}
.state-diagram::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--bc-grad); border-radius: 12px 12px 0 0;
}
.state-diagram svg { width: 100%; height: auto; display: block; }
.sd-node rect { fill: var(--paper); stroke: var(--ink-2); stroke-width: 1.6; rx: 8; transition: all 0.3s; }
.sd-node.hub rect { fill: var(--bc-accent); stroke: var(--bc-accent); filter: drop-shadow(0 0 10px var(--bc-accent-glow)); }
.sd-node.hub .n-title, .sd-node.hub .n-num, .sd-node.hub .n-pin { fill: #fff; }
.sd-node.safe rect { stroke: var(--bc-warm); stroke-dasharray: 5 3; }
.sd-node.start circle { fill: var(--bc-accent); stroke: var(--bc-accent); filter: drop-shadow(0 0 8px var(--bc-accent-glow)); }
.sd-node.start .n-pin { fill: #fff; font-size: 14px; }
.sd-node:hover rect { fill: var(--bc-accent-soft); stroke: var(--bc-accent); }
.sd-node.hub:hover rect { filter: drop-shadow(0 0 18px var(--bc-accent-glow)); }

/* Dynamic FSM highlights */
.sd-node.active rect {
  fill: var(--bc-accent-soft);
  stroke: var(--bc-accent);
  filter: drop-shadow(0 0 12px var(--bc-accent-glow));
}
.sd-node.active.safe rect {
  fill: var(--bc-warm-soft);
  stroke: var(--bc-warm);
  filter: drop-shadow(0 0 12px var(--bc-warm-soft));
}
.sd-node.active text {
  fill: var(--bc-accent) !important;
  font-weight: 600;
}
.sd-node.active.safe text {
  fill: var(--bc-warm) !important;
}
.sd-node.active .n-pin {
  fill: var(--ink-3) !important;
}
.sd-node .n-num   { font-family: var(--font-mono); font-size: 14px; letter-spacing: 0.14em; fill: var(--bc-accent); font-weight: 700; }
.sd-node .n-title  { font-family: var(--font-display); font-size: 18px; font-weight: 700; letter-spacing: -0.015em; fill: var(--ink); }
.sd-node .n-pin    { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; fill: var(--ink-3); font-weight: 500; }
.sd-node .n-tag    { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em; fill: var(--ink-3); font-weight: 600; }
.sd-edge path { fill: none; stroke: var(--ink-2); stroke-width: 2px; transition: all 0.3s; }
.sd-edge.sig path { stroke: var(--bc-accent); color: var(--bc-accent); filter: drop-shadow(0 0 3px var(--bc-accent-glow)); }
.sd-edge.dashed path { stroke-dasharray: 6 4; opacity: 0.7; }
.sd-edge-label .e-label-bg { fill: var(--paper); stroke: var(--rule); stroke-width: 1px; rx: 6; }
.sd-edge-label .e-label { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; fill: var(--ink-2); text-transform: uppercase; font-weight: 600; }
.sd-edge-label .e-label.sig { fill: var(--bc-accent); }
.sd-edge-label .e-label.dim { fill: var(--ink-3); }
.sd-node { transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1); transform-box: fill-box; transform-origin: center; cursor: pointer; }
.sd-node:hover { transform: translateY(-4px) scale(1.03); }
.state-legend {
  display: flex; flex-wrap: wrap; gap: 18px;
  margin-top: 16px; padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.08em; color: var(--ink-3); text-transform: uppercase;
}
.state-legend .lg { display: inline-flex; align-items: center; gap: 8px; }
.state-legend .sw { width: 22px; height: 12px; display: inline-block; border-radius: 3px; }
.state-legend .sw.sig-line { height: 0; border-top: 1.6px solid var(--bc-accent); }
.state-legend .sw.dashed-line { height: 0; border-top: 1.6px dashed var(--ink-3); }
.state-legend .sw.box-hub { background: var(--bc-accent); border: 1px solid var(--bc-accent); }
.state-legend .sw.box-safe { background: var(--paper); border: 1px dashed var(--bc-warm); }

/* ============================================================
   AUTOMATION CARDS (glass)
   ============================================================ */
.rules-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.rule-card {
  padding: 26px 26px 22px;
  position: relative; overflow: hidden;
  background: var(--bc-glass);
  backdrop-filter: blur(16px) saturate(120%);
  border: 1px solid var(--bc-glass-border);
  border-radius: 14px;
  transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}
.rule-card::before {
  content: ""; position: absolute;
  top: 0; left: 20px; right: 20px;
  height: 2px; background: var(--bc-grad);
  border-radius: 0 0 2px 2px;
  opacity: 0; transition: opacity 0.4s, left 0.5s cubic-bezier(0.22, 1, 0.36, 1), right 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.rule-card:hover::before { opacity: 1; left: 0; right: 0; }
.rule-card:hover {
  border-color: var(--bc-accent);
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.10), 0 0 32px var(--bc-accent-soft), inset 0 1px 0 rgba(255,255,255,0.06);
}
.rule-card.span-full { grid-column: 1 / -1; }
.rule-card header {
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 12px; padding-bottom: 12px;
  border-bottom: 1px dashed color-mix(in srgb, var(--rule) 60%, transparent);
}
.rule-card .r-num { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; color: var(--bc-accent); font-weight: 600; }
.rule-card h4 { font-family: var(--font-display); font-size: 20px; letter-spacing: -0.022em; font-weight: 600; margin: 0; color: var(--ink); }
.rule-card p { font-size: 13px; line-height: 1.7; color: var(--ink-2); margin: 0 0 14px; max-width: none; }
.rule-card p code { font-family: var(--font-mono); font-size: 0.92em; background: var(--paper-2); padding: 1px 5px; border-radius: 3px; color: var(--bc-accent); }
.r-spec { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid color-mix(in srgb, var(--rule) 60%, transparent); margin-top: auto; }
.r-spec > span { display: flex; flex-direction: column; gap: 2px; padding: 10px 0 0; font-family: var(--font-mono); }
.r-spec > span + span { padding-left: 16px; border-left: 1px solid color-mix(in srgb, var(--rule) 60%, transparent); }
.r-spec b { font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); font-weight: 500; }
.r-spec i { font-style: normal; font-size: 12px; color: var(--ink); font-weight: 500; }

/* ============================================================
   PROTOCOL / SEQUENCE DIAGRAM
   ============================================================ */
.protocol-viz {
  border: 1px solid var(--rule);
  background: radial-gradient(ellipse at 50% 50%, var(--paper) 0%, var(--paper-2) 100%);
  padding: 28px 24px 16px;
  position: relative; border-radius: 12px; overflow: hidden;
}
.protocol-viz::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--bc-grad); border-radius: 12px 12px 0 0;
}
.protocol-viz svg { width: 100%; height: auto; display: block; }

/* ============================================================
   TABLES (rounded, glowing headers)
   ============================================================ */
.wiring-table, .auto-table {
  border: 1px solid var(--rule); border-radius: 10px;
  font-family: var(--font-mono); font-size: 12.5px;
  width: 100%; border-collapse: separate;
  border-spacing: 0; overflow: hidden;
}
.wiring-table tr, .auto-table tr { transition: background 0.15s ease; }
.wiring-table tbody tr:hover td, .auto-table tbody tr:hover td { background: var(--bc-accent-soft); }
.wiring-table thead tr, .auto-table thead tr { background: var(--paper-2); }
.wiring-table th, .auto-table th {
  padding: 14px 16px; text-align: left;
  font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--bc-accent); font-weight: 600;
  border-bottom: 2px solid var(--bc-accent);
  border-right: 1px solid var(--rule-2);
}
.wiring-table td, .auto-table td {
  padding: 12px 16px; vertical-align: middle;
  border-right: 1px solid var(--rule-2);
  border-bottom: 1px solid var(--rule-2);
  color: var(--ink-2);
}
.wiring-table td:last-child, .wiring-table th:last-child,
.auto-table td:last-child, .auto-table th:last-child { border-right: 0; }
.wiring-table tr:last-child td, .auto-table tr:last-child td { border-bottom: 0; }
.wiring-table td strong, .auto-table td strong { color: var(--ink); font-weight: 500; }
.pin {
  font-family: var(--font-mono); font-size: 11px;
  background: var(--bc-accent-soft); color: var(--bc-accent);
  padding: 2px 8px; display: inline-block;
  border: 1px solid color-mix(in srgb, var(--bc-accent) 25%, transparent);
  font-weight: 600; border-radius: 4px;
}
.caption-note { margin-top: 16px; font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.02em; line-height: 1.7; }

/* ============================================================
   CONNECTIVITY (glass cards)
   ============================================================ */
.conn-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.conn-card {
  padding: 26px 26px 24px;
  position: relative;
  background: var(--bc-glass);
  backdrop-filter: blur(16px) saturate(120%);
  border: 1px solid var(--bc-glass-border);
  border-radius: 14px;
  transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden; will-change: transform;
}
.conn-card::before {
  content: ""; position: absolute;
  top: 0; left: 20px; right: 20px;
  height: 2px; background: var(--bc-grad);
  border-radius: 0 0 2px 2px;
  opacity: 0; transition: opacity 0.4s, left 0.5s cubic-bezier(0.22, 1, 0.36, 1), right 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.conn-card:hover::before { opacity: 1; left: 0; right: 0; }
.conn-card:hover {
  border-color: var(--bc-accent);
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.10), 0 0 32px var(--bc-accent-soft), inset 0 1px 0 rgba(255,255,255,0.06);
}
.conn-pill {
  display: inline-block; font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--bc-accent);
  border: 1px solid color-mix(in srgb, var(--bc-accent) 30%, transparent);
  padding: 4px 10px; margin-bottom: 14px;
  font-weight: 600; background: var(--bc-accent-soft);
  border-radius: 6px;
}
.conn-card h4 { font-family: var(--font-display); font-size: 19px; letter-spacing: -0.02em; color: var(--ink); font-weight: 600; margin: 0 0 10px; }
.conn-card p { font-size: 13px; line-height: 1.7; color: var(--ink-2); margin: 0; max-width: 64ch; }
.conn-card p code { font-family: var(--font-mono); font-size: 0.92em; background: var(--paper-2); padding: 1px 5px; border-radius: 3px; color: var(--bc-accent); }

/* ============================================================
   BUILD THE PROJECT (downloads)
   ============================================================ */
.build-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 10px;
}
.build-card {
  padding: 30px 26px 26px;
  position: relative;
  background: var(--bc-glass);
  backdrop-filter: blur(16px) saturate(120%);
  border: 1px solid var(--bc-glass-border);
  border-radius: 14px;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  will-change: transform;
}
.build-card::before {
  content: ""; position: absolute;
  top: 0; left: 30px; right: 30px;
  height: 2px; background: var(--bc-grad);
  border-radius: 0 0 2px 2px;
  opacity: 0; transition: opacity 0.4s, left 0.5s cubic-bezier(0.22, 1, 0.36, 1), right 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.build-card:hover::before { opacity: 1; left: 0; right: 0; }
.build-card:hover {
  border-color: var(--bc-accent);
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.15), 0 0 40px var(--bc-accent-soft), inset 0 1px 0 rgba(255,255,255,0.06);
}

.build-card-top {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.build-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bc-accent-soft);
  color: var(--bc-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid color-mix(in srgb, var(--bc-accent) 20%, transparent);
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  align-self: flex-start;
}
.build-card:hover .build-card-icon {
  transform: scale(1.1) rotate(6deg);
}
.build-card h4 {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-weight: 600;
  margin: 4px 0 0 0;
}
.build-card p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
  margin: 0 0 20px 0;
  max-width: 64ch;
}
.build-card p strong {
  color: var(--ink);
  font-weight: 500;
}
.build-card p .bc-param {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bc-accent-soft);
  color: var(--bc-accent);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid color-mix(in srgb, var(--bc-accent) 20%, transparent);
}

.build-download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--bc-accent-soft);
  color: var(--bc-accent);
  border: 1px solid color-mix(in srgb, var(--bc-accent) 30%, transparent);
  border-radius: 8px;
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  margin-top: auto;
}
.build-download-btn::before {
  content: ""; position: absolute;
  top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  transition: left 0.6s ease;
}
.build-card:hover .build-download-btn {
  background: var(--bc-accent);
  color: var(--paper);
  border-color: var(--bc-accent);
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.25);
}
.build-card:hover .build-download-btn::before {
  left: 100%;
}
.build-download-btn svg {
  transition: transform 0.3s;
}
.build-card:hover .build-download-btn svg {
  transform: translateY(2px);
}
.build-download-btn .bc-param {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.12);
  color: inherit;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 1px 6px;
  border-radius: 4px;
  transition: all 0.3s;
}
.build-card:hover .build-download-btn .bc-param {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

/* ============================================================
   TWT POWER VIZ
   ============================================================ */
.twt-viz {
  border: 1px solid var(--rule);
  background: radial-gradient(ellipse at 50% 50%, var(--paper) 0%, var(--paper-2) 100%);
  padding: 28px 24px 16px;
  position: relative; border-radius: 12px; overflow: hidden;
}
.twt-viz::after { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--bc-grad); border-radius: 12px 12px 0 0; }
.twt-viz svg { width: 100%; height: auto; display: block; }

.twt-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 20px; }
.twt-stat {
  display: flex; flex-direction: column; gap: 2px;
  padding: 24px; border-radius: 12px;
  background: var(--bc-glass);
  border: 1px solid var(--bc-glass-border);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}
.twt-stat:hover {
  border-color: var(--bc-accent);
  background: var(--bc-accent-soft);
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08), 0 0 24px var(--bc-accent-soft);
}
.twt-stat-v { font-family: var(--font-display); font-size: 40px; font-weight: 700; color: var(--bc-accent); letter-spacing: -0.04em; line-height: 1; transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); }
.twt-stat:hover .twt-stat-v { transform: scale(1.06); }
.twt-stat-v i { font-family: var(--font-mono); font-style: normal; font-size: 18px; color: var(--ink-3); font-weight: 500; margin-left: 2px; }
.twt-stat-k { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); font-weight: 600; margin-top: 10px; }
.twt-stat-n { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-3); line-height: 1.5; }
.twt-prose { margin-top: 28px; columns: 2; column-gap: 56px; max-width: 1024px; }
.twt-prose p { break-inside: avoid; font-size: 15px; line-height: 1.75; color: var(--ink-2); max-width: none; margin: 0 0 16px; }
.twt-prose p:last-child { margin-bottom: 0; }

/* ============================================================
   SAFETY (glass cards)
   ============================================================ */
.safety-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.safe-cell {
  padding: 26px 22px 22px;
  position: relative; border-radius: 14px;
  background: var(--bc-glass);
  border: 1px solid var(--bc-glass-border);
  transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
  overflow: hidden;
}
.safe-cell::after {
  content: "";
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at 30% 30%, var(--bc-accent-glow) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
  z-index: 0;
}
.safe-cell:hover {
  border-color: var(--bc-accent);
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.10), 0 0 32px var(--bc-accent-soft), inset 0 1px 0 rgba(255,255,255,0.06);
}
.safe-cell:hover::after { opacity: 0.35; }
.safe-cell .s-num {
  display: block; font-family: var(--font-display);
  font-size: 40px; font-weight: 700;
  color: var(--bc-accent); letter-spacing: -0.045em;
  line-height: 1; margin-bottom: 16px;
  position: relative; z-index: 1;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.safe-cell:hover .s-num { transform: scale(1.08); }
.safe-cell .s-num i { font-family: var(--font-mono); font-style: normal; font-size: 18px; color: var(--ink-3); font-weight: 500; margin-left: 2px; }
.safe-cell h4 { font-family: var(--font-display); font-size: 14.5px; font-weight: 600; letter-spacing: -0.015em; color: var(--ink); margin: 0 0 6px; position: relative; z-index: 1; }
.safe-cell p { font-size: 11.5px; color: var(--ink-2); line-height: 1.65; margin: 0; position: relative; z-index: 1; }

/* EEPROM SIMULATOR */
.eeprom-figure {
  margin-top: 24px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 22px 26px;
  border-radius: 12px;
}
.ef-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  border-bottom: 1px dashed var(--rule);
  padding-bottom: 10px;
}
.ef-header .ef-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bc-accent);
  font-weight: 600;
  margin: 0;
}
.ef-led-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  font-weight: 600;
}
.ef-led {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bc-green);
  box-shadow: 0 0 8px var(--bc-green);
  transition: all 0.3s ease;
}

/* LED Simulated States */
.ef-led.ready {
  background: var(--bc-green);
  box-shadow: 0 0 8px var(--bc-green);
  animation: pulseLedReady 2s infinite alternate;
}
.ef-led.writing {
  background: var(--bc-accent);
  box-shadow: 0 0 8px var(--bc-accent);
  animation: pulseLedWriting 0.5s infinite alternate;
}
.ef-led.corrupt {
  background: var(--bc-red);
  box-shadow: 0 0 12px var(--bc-red);
  animation: pulseLedCorrupt 0.3s infinite alternate;
}
.ef-led.recovering {
  background: var(--bc-warm);
  box-shadow: 0 0 10px var(--bc-warm);
  animation: pulseLedRecovering 0.6s infinite alternate;
}

@keyframes pulseLedReady {
  0% { opacity: 0.6; } 100% { opacity: 1; box-shadow: 0 0 10px var(--bc-green); }
}
@keyframes pulseLedWriting {
  0% { opacity: 0.4; } 100% { opacity: 1; box-shadow: 0 0 12px var(--bc-accent); }
}
@keyframes pulseLedCorrupt {
  0% { opacity: 0.3; } 100% { opacity: 1; box-shadow: 0 0 16px var(--bc-red); }
}
@keyframes pulseLedRecovering {
  0% { opacity: 0.5; } 100% { opacity: 1; box-shadow: 0 0 14px var(--bc-warm); }
}

.eeprom-bar {
  display: grid; grid-template-columns: 4.2fr 0.6fr 4.2fr 0.6fr 2.4fr;
  gap: 0; height: 88px;
  font-family: var(--font-mono);
  border: 1px solid var(--rule); border-radius: 8px;
  background: var(--paper); overflow: hidden;
  position: relative;
}
@keyframes dataBusFlow { 0% { background-position: 0 0; } 100% { background-position: 40px 40px; } }
.eeprom-bar::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(90deg, transparent 0%, transparent 45%, color-mix(in srgb, var(--bc-accent-soft) 30%, transparent) 50%, transparent 55%, transparent 100%);
  background-size: 200% 100%; opacity: 0; pointer-events: none; transition: opacity 0.4s; z-index: 1;
}
.eeprom-bar.writing-flow::after {
  opacity: 1;
  animation: dataBusFlow 1.2s linear infinite;
}
.eeprom-bar .slot, .eeprom-bar .flag {
  display: flex; flex-direction: column; justify-content: center; gap: 6px;
  padding: 12px 16px; position: relative; transition: all 0.3s; z-index: 2;
}
.eeprom-bar .slot.slot-a { background: var(--paper); border-right: 1px solid var(--rule); }
.eeprom-bar .slot.slot-b { background: var(--paper-3); border-right: 1px solid var(--rule); }
.eeprom-bar .slot.corrupt-slot {
  border: 1px solid var(--bc-red);
  box-shadow: inset 0 0 8px rgba(239, 68, 68, 0.12);
  background: var(--bc-red-soft) !important;
}
.eeprom-bar .slot.corrupt-slot .s-k {
  color: var(--bc-red) !important;
}
.eeprom-bar .flag { background: var(--paper-2); border-left: 1px solid var(--rule); color: var(--ink-2); border-radius: 0 8px 8px 0; }
.eeprom-bar .flag.active-flag {
  background: var(--bc-red) !important;
  color: #fff !important;
  box-shadow: 0 0 14px rgba(239, 68, 68, 0.3);
  animation: pulseFlag 1s infinite alternate;
}
@keyframes pulseFlag {
  0% { opacity: 0.85; } 100% { opacity: 1; }
}
.eeprom-bar .pad { background: repeating-linear-gradient(45deg, var(--rule-2) 0 4px, var(--paper) 4px 8px); }
.eeprom-bar .s-k { font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600; color: var(--ink-3); }
.eeprom-bar .slot-a .s-k { color: var(--bc-green); }
.eeprom-bar .slot-b .s-k { color: var(--bc-accent); }
.eeprom-bar .flag.active-flag .s-k { color: rgba(255,255,255,0.7) !important; }
.eeprom-bar .s-meta { font-size: 10px; color: var(--ink); font-weight: 500; }
.eeprom-bar .flag.active-flag .s-meta { color: #fff !important; opacity: 0.9; }

.ef-controls {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 16px;
}
@media (max-width: 640px) {
  .ef-controls {
    grid-template-columns: 1fr;
  }
}

/* Monospace Console */
.eeprom-console {
  margin-top: 18px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: #0b0f19;
  overflow: hidden;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5);
}
.console-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #151d30;
  padding: 8px 14px;
  border-bottom: 1px solid #222f4c;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: #7085a8;
}
.console-cursor {
  animation: blinkCursor 0.8s infinite;
  font-weight: bold;
  color: var(--bc-accent);
}
@keyframes blinkCursor {
  0%, 100% { opacity: 0; } 50% { opacity: 1; }
}
.console-body {
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: #e2e8f0;
  height: 150px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}
.log-row {
  word-break: break-all;
  white-space: pre-wrap;
}
.log-row.info {
  color: #38bdf8;
}
.log-row.success {
  color: #34d399;
}
.log-row.warning {
  color: #fbbf24;
}
.log-row.danger {
  color: #f87171;
  font-weight: 500;
}

.ef-note { margin-top: 12px; font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.02em; line-height: 1.65; }

/* PREMIUM WIRING & DATASHEET SPEC TABLES */
.wiring-table tbody tr:nth-child(even), .auto-table tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--paper-2) 35%, transparent);
}
.wiring-table th, .auto-table th {
  border-bottom: 2px solid var(--bc-accent) !important;
}
.wiring-table tr:hover td, .auto-table tr:hover td {
  background: var(--bc-accent-soft) !important;
  color: var(--ink) !important;
}

/* ============================================================
   BULLETS
   ============================================================ */
.bullets { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px; }
.bullets li {
  position: relative; padding-left: 28px;
  font-family: var(--font-mono); font-size: 13px;
  line-height: 1.7; color: var(--ink-2);
}
.bullets li::before { content: "→"; position: absolute; left: 0; color: var(--bc-accent); font-weight: 600; }
.bullets li strong { color: var(--ink); font-weight: 500; }
.bullets li code { font-family: var(--font-mono); font-size: 0.92em; background: var(--paper-2); padding: 1px 5px; border-radius: 3px; color: var(--bc-accent); }

/* ============================================================
   NAV / FOOTER adjustments
   ============================================================ */
.back-link { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.back-link:hover { color: var(--bc-accent); }

/* ============================================================
   REVEAL
   ============================================================ */
.block.pre-reveal, [data-reveal].pre-reveal, .layout-figure.pre-reveal, .eeprom-figure.pre-reveal {
  opacity: 0; transform: translateY(50px) scale(0.96);
  filter: blur(10px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 1.1s cubic-bezier(0.16, 1, 0.3, 1), filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform, filter;
}
.block.in, [data-reveal].in, .layout-figure.in, .eeprom-figure.in {
  opacity: 1; transform: translateY(0) scale(1); filter: blur(0);
}

/* Card stagger reveals */
.bento-cell, .rule-card, .safe-cell, .conn-card, .twt-stat {
  opacity: 0; transform: translateY(24px) scale(0.995);
  transition-property: opacity, transform, background, border-color, box-shadow;
  transition-duration: 0.8s, 0.8s, 0.4s, 0.4s, 0.4s;
  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}
.block.in .bento-cell, .block.in .rule-card, .block.in .safe-cell, .block.in .conn-card, .block.in .twt-stat {
  opacity: 1; transform: translateY(0) scale(1);
}
.bento-cell:hover, .rule-card:hover, .safe-cell:hover, .conn-card:hover, .twt-stat:hover { transition-delay: 0s !important; }

.block.in .bento-cell:nth-child(1), .block.in .safe-cell:nth-child(1), .block.in .conn-card:nth-child(1), .block.in .rule-card:nth-child(1), .block.in .twt-stat:nth-child(1) { transition-delay: 0.04s, 0.04s, 0s, 0s, 0s; }
.block.in .bento-cell:nth-child(2), .block.in .safe-cell:nth-child(2), .block.in .conn-card:nth-child(2), .block.in .rule-card:nth-child(2), .block.in .twt-stat:nth-child(2) { transition-delay: 0.10s, 0.10s, 0s, 0s, 0s; }
.block.in .bento-cell:nth-child(3), .block.in .safe-cell:nth-child(3), .block.in .conn-card:nth-child(3), .block.in .rule-card:nth-child(3), .block.in .twt-stat:nth-child(3) { transition-delay: 0.16s, 0.16s, 0s, 0s, 0s; }
.block.in .bento-cell:nth-child(4), .block.in .safe-cell:nth-child(4), .block.in .conn-card:nth-child(4), .block.in .rule-card:nth-child(4) { transition-delay: 0.22s, 0.22s, 0s, 0s, 0s; }
.block.in .bento-cell:nth-child(5), .block.in .conn-card:nth-child(5), .block.in .rule-card:nth-child(5) { transition-delay: 0.28s, 0.28s, 0s, 0s, 0s; }
.block.in .bento-cell:nth-child(6) { transition-delay: 0.34s, 0.34s, 0s, 0s, 0s; }

/* ============================================================
   TEXT SELECTABILITY
   ============================================================ */
html, body { user-select: none; -webkit-user-select: none; }
html.selection-enabled, html.selection-enabled body { user-select: text !important; -webkit-user-select: text !important; }
input, textarea, kbd, code, pre, .pin { user-select: text; -webkit-user-select: text; }
.kv.selectability-row { display: flex; align-items: center; gap: 16px; margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--rule); }
.switch-toggle { position: relative; display: inline-block; width: 38px; height: 20px; margin-left: auto; }
.switch-toggle input { opacity: 0; width: 0; height: 0; }
.switch-toggle .slider { position: absolute; cursor: pointer; inset: 0; background: var(--rule-2); transition: 0.3s; border-radius: 20px; border: 1px solid var(--rule); }
.switch-toggle .slider::before { position: absolute; content: ""; height: 12px; width: 12px; left: 3px; bottom: 3px; background: var(--paper); transition: 0.3s; border-radius: 50%; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
.switch-toggle input:checked + .slider { background: var(--bc-accent); border-color: var(--bc-accent); }
.switch-toggle input:checked + .slider::before { transform: translateX(18px); }

/* ============================================================
   AUTOMATIONS TABS (interactive section)
   ============================================================ */
.auto-tabs {
  display: grid;
  grid-template-columns: 280px 1fr;
  border: 1px solid var(--rule);
  border-radius: 18px;
  overflow: hidden;
  background: var(--paper);
  box-shadow: 0 8px 40px -12px rgba(0,0,0,0.08),
              0 0 0 1px color-mix(in srgb, var(--rule) 40%, transparent);
}
.auto-rail {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 32px 16px;
  background: var(--paper-2);
  border-right: 1px solid var(--rule);
  position: relative;
}
.auto-rail-indicator {
  position: absolute;
  top: 0;
  left: 16px;
  right: 16px;
  height: 0;
  background: var(--bc-glass);
  border: 1px solid var(--bc-accent);
  border-radius: 12px;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), height 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
  z-index: 0;
  box-shadow: 0 0 20px var(--bc-accent-soft),
              inset 0 0 12px color-mix(in srgb, var(--bc-accent) 8%, transparent);
}
.auto-tab {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 12px;
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  z-index: 1;
  text-align: left;
}
.auto-tab:hover {
  background: color-mix(in srgb, var(--bc-accent) 6%, transparent);
  transform: translateX(4px);
}
.auto-tab.active {
  background: transparent;
}
.at-icon {
  font-size: 26px;
  line-height: 1;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: color-mix(in srgb, var(--paper) 80%, var(--ink-3));
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  filter: grayscale(0.4);
}
.auto-tab.active .at-icon {
  filter: grayscale(0);
  background: var(--bc-accent-soft);
  box-shadow: 0 0 16px var(--bc-accent-soft);
  transform: scale(1.12) rotate(-3deg);
}
.auto-tab:hover .at-icon {
  filter: grayscale(0.1);
  transform: scale(1.06);
}

/* Two-line tab label */
.at-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}
.at-name {
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-2);
  transition: color 0.3s;
}
.auto-tab.active .at-name {
  color: var(--ink);
}
.at-hint {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  transition: color 0.3s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.auto-tab.active .at-hint {
  color: var(--bc-accent);
}

/* Live status LED */
.at-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--ink-3);
  transition: all 0.4s;
}
.at-status.on {
  background: #34d399;
  box-shadow: 0 0 6px #34d39966, 0 0 12px #34d39933;
  animation: statusPulse 2.5s ease-in-out infinite;
}
@keyframes statusPulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px #34d39966, 0 0 12px #34d39933; }
  50% { opacity: 0.6; box-shadow: 0 0 3px #34d39944; }
}

/* Content panel */
.auto-panel {
  padding: 44px 48px;
  position: relative;
  min-height: 380px;
  overflow: hidden;
  background-image: radial-gradient(color-mix(in srgb, var(--rule) 35%, transparent) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: 24px 24px;
}
.auto-pane {
  display: none;
  animation: autoPaneIn 0.65s cubic-bezier(0.22, 1, 0.36, 1) both;
  will-change: transform, opacity, filter;
}
.auto-pane.active {
  display: block;
}
@keyframes autoPaneIn {
  0% { opacity: 0; transform: translateY(16px) scale(0.95); filter: blur(8px); }
  40% { opacity: 0.6; filter: blur(2px); }
  100% { opacity: 1; transform: none; filter: blur(0); }
}

/* Hero emoji */
.ap-hero-icon {
  font-size: 52px;
  line-height: 1;
  margin-bottom: 20px;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  background: var(--bc-accent-soft);
  box-shadow: 0 4px 20px color-mix(in srgb, var(--bc-accent) 15%, transparent),
              inset 0 0 24px color-mix(in srgb, var(--bc-accent) 6%, transparent);
  position: relative;
}
.ap-hero-icon::after {
  content: "";
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--bc-accent) 8%, transparent) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.ap-head {
  margin-bottom: 20px;
}
.ap-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bc-accent);
  font-weight: 600;
  margin-bottom: 6px;
  display: block;
}
.ap-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0;
}
.ap-desc {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
  margin: 0;
  max-width: 64ch;
}
.ap-why-card {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--bc-accent);
  border-radius: 12px;
  padding: 20px 24px;
  box-shadow: 0 8px 30px -15px rgba(0,0,0,0.05), inset 0 1px 0 rgba(255,255,255,0.04);
  position: relative;
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  margin-top: 16px;
  overflow: hidden;
}
.ap-why-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 80px;
  background: linear-gradient(90deg, var(--bc-accent-soft), transparent);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.ap-why-card:hover {
  transform: translateY(-3px) scale(1.005);
  box-shadow: 0 16px 40px -12px rgba(0,0,0,0.10), 0 0 20px var(--bc-accent-soft);
  border-color: color-mix(in srgb, var(--bc-accent) 30%, var(--rule));
}
.ap-why-card:hover::before {
  opacity: 1;
}
.ap-why-card .ap-why {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
  margin: 0;
  max-width: 64ch;
  background: transparent;
  border-left: none;
  box-shadow: none;
  padding: 0;
}
.ap-why-card .ap-why strong {
  color: var(--ink);
  font-weight: 600;
}
.auto-tabs[data-active-pane="morning"] .ap-why-card { border-left-color: var(--bc-warm); }
.auto-tabs[data-active-pane="sunset"] .ap-why-card { border-left-color: var(--bc-violet); }
.auto-tabs[data-active-pane="night"] .ap-why-card { border-left-color: var(--bc-accent); }
.auto-tabs[data-active-pane="presence"] .ap-why-card { border-left-color: var(--bc-green); }
.auto-tabs[data-active-pane="heat"] .ap-why-card { border-left-color: var(--bc-red); }

.ap-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid color-mix(in srgb, var(--rule) 50%, transparent);
  padding-top: 16px;
  margin-top: auto;
  gap: 0;
}
.ap-specs > span {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0;
  font-family: var(--font-mono);
}
.ap-specs > span + span {
  padding-left: 20px;
  border-left: 1px solid color-mix(in srgb, var(--rule) 50%, transparent);
}
.ap-specs b {
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
}
.ap-specs i {
  font-style: normal;
  font-size: 12.5px;
  color: var(--ink);
  font-weight: 500;
}

/* ── TWO-COLUMN DESKTOP GRID FOR AUTOMATIONS ── */
.ap-grid-layout {
  display: block;
  width: 100%;
}
.ap-content {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: start;
  width: 100%;
}
.ap-details-panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
  height: 100%;
}
.ap-text-panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ── PREMIUM WIDGET BOARD STYLING ── */
/* ── PREMIUM WIDGET BOARD STYLING (GLASSMORPHIC) ── */
.ap-widget {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 12px 40px -15px rgba(0,0,0,0.04), 
              inset 0 1px 0 rgba(255,255,255,0.06);
  position: relative;
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
html[data-theme="dark"] .ap-widget {
  background: rgba(17, 24, 39, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: 0 20px 50px -12px rgba(0,0,0,0.3), 
              inset 0 1px 1px rgba(255,255,255,0.04);
}
.ap-widget::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
  pointer-events: none;
}
.widget-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px dashed color-mix(in srgb, var(--rule) 60%, transparent);
  padding-bottom: 14px;
  margin-bottom: 22px;
}
.w-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--bc-accent);
  font-weight: 700;
  text-transform: uppercase;
}
.w-status {
  font-family: var(--font-mono);
  font-size: 9px;
  background: var(--bc-accent-soft);
  color: var(--bc-accent);
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.w-status.secure {
  background: var(--bc-green-soft);
  color: var(--bc-green);
}
.w-status.warning {
  background: var(--bc-red-soft);
  color: var(--bc-red);
}
.widget-body {
  min-height: 150px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── LUXURY WINDOW GRAPHICS (SPRING MOVEMENTS) ── */
.sim-window {
  width: 90px;
  height: 130px;
  border: 4px solid var(--ink-2);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  background: #060913;
  box-shadow: 0 12px 36px rgba(0,0,0,0.22), 
              inset 0 0 20px rgba(0,0,0,0.6),
              0 0 0 1px rgba(255,255,255,0.03);
  flex-shrink: 0;
  transition: border-color 0.4s ease, transform 0.3s;
}
.sim-window:hover {
  transform: translateY(-2px);
}
html[data-theme="dark"] .sim-window {
  border-color: #374151;
}
.window-frame {
  position: absolute;
  inset: 0;
}
.window-sky {
  position: absolute;
  inset: 0;
  z-index: 1;
  transition: background 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.6s ease;
}
.window-blind {
  position: absolute;
  top: 0; left: 0; right: 0;
  /* Premium pleated roller shade gradient */
  background: repeating-linear-gradient(
    to bottom,
    var(--paper-2) 0px,
    var(--paper-2) 8px,
    color-mix(in srgb, var(--rule) 70%, var(--ink-3)) 8px,
    color-mix(in srgb, var(--rule) 70%, var(--ink-3)) 10px
  );
  border-bottom: 5px solid #4b5563; /* Sleek structural bottom frame rail */
  z-index: 2;
  /* Custom bouncy spring mechanical transition */
  transition: height 0.8s cubic-bezier(0.25, 1.35, 0.5, 1.05);
  box-shadow: 0 6px 16px rgba(0,0,0,0.35);
}
html[data-theme="dark"] .window-blind {
  background: repeating-linear-gradient(
    to bottom,
    #1f2937 0px,
    #1f2937 8px,
    #111827 8px,
    #111827 10px
  );
  border-bottom-color: #374151;
}
.blind-pull {
  position: absolute;
  bottom: -13px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 13px;
  background: var(--ink-3);
}
/* Brushed metallic pull handle */
.blind-pull::before {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e5e7eb, #9ca3af);
  border: 1px solid #4b5563;
  box-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

/* ── 01. MORNING SIMULATOR ── */
.morning-sim {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding: 6px 0;
}
.sunrise-path-svg {
  width: 140px;
  height: 100px;
  overflow: visible;
}
.sim-sun {
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}
.sim-sun circle {
  transition: fill 0.4s, stroke 0.4s;
}
.morning-sky {
  background: linear-gradient(to bottom, #0f172a, #2e1065);
}

/* ── 02. SUNSET SIMULATOR ── */
.sunset-sim {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding: 6px 0;
}
.sunset-horizon-wrapper {
  position: relative;
  width: 140px;
  height: 120px;
  border: 1px solid var(--rule);
  border-radius: 12px;
  background: var(--paper);
  overflow: hidden;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.04);
}
html[data-theme="dark"] .sunset-horizon-wrapper {
  background: rgba(0, 0, 0, 0.25);
  border-color: rgba(255,255,255,0.06);
}
.horizon-line {
  position: absolute;
  bottom: 40px;
  left: 0; right: 0;
  height: 2px;
  background: var(--ink-3);
  opacity: 0.4;
  z-index: 2;
}
.sim-sun-sunset {
  position: absolute;
  width: 22px;
  height: 22px;
  background: #f59e0b;
  border-radius: 50%;
  left: calc(50% - 11px);
  bottom: 40px;
  transition: bottom 0.4s cubic-bezier(0.25, 1, 0.5, 1), background-color 0.4s, opacity 0.4s, box-shadow 0.4s;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.7);
  z-index: 1;
}
.sunset-sky {
  background: linear-gradient(to bottom, #0284c7, #fdba74);
}

/* ── 03. NIGHT LOCK SIMULATOR ── */
.night-sim {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding: 6px 0;
}
.sim-radial-clock {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 140px;
}
.clock-dial-svg {
  width: 110px;
  height: 110px;
  overflow: visible;
  filter: drop-shadow(0 6px 12px rgba(0,0,0,0.12));
}
.clock-dial-svg circle {
  transition: stroke 0.3s;
  stroke: var(--rule-2);
}
.clock-digital {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--bc-accent);
  background: var(--paper-3);
  padding: 5px 12px;
  border-radius: 8px;
  border: 1px solid var(--rule);
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.04), 0 0 10px var(--bc-accent-soft);
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
}
.night-sky {
  background: linear-gradient(to bottom, #020617, #0f172a);
  display: flex;
  align-items: center;
  justify-content: center;
}
.lock-badge-icon {
  color: var(--bc-red);
  filter: drop-shadow(0 0 10px rgba(239, 68, 68, 0.6));
  z-index: 3;
  opacity: 1;
  transition: opacity 0.4s ease, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform: scale(1);
}
.lock-badge-icon.unlocked {
  color: var(--bc-green);
  filter: drop-shadow(0 0 10px rgba(16, 185, 129, 0.6));
  transform: scale(0.85) rotate(-15deg);
}

/* ── 04. RADAR OCCUPANCY SIMULATOR ── */
.presence-sim {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding: 6px 0;
}
.sim-radar {
  position: relative;
  width: 140px;
  height: 120px;
  border: 1px solid var(--rule);
  border-radius: 12px;
  background: #02160f;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding-bottom: 8px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}
html[data-theme="dark"] .sim-radar {
  border-color: rgba(255,255,255,0.05);
}
.radar-sweep {
  position: absolute;
  inset: -30px;
  background: conic-gradient(from 0deg, transparent 50%, rgba(16, 185, 129, 0.05) 80%, rgba(16, 185, 129, 0.28) 100%);
  border-radius: 50%;
  animation: radarSpin 4s linear infinite;
  z-index: 1;
  transform-origin: center center;
  pointer-events: none;
}
@keyframes radarSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.radar-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  left: 55%;
  top: 35%;
  box-shadow: 0 0 10px #10b981, 0 0 20px #10b981;
  z-index: 2;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.4s;
  animation: dotFlash 1.2s infinite alternate;
}
@keyframes dotFlash {
  0% { opacity: 0.3; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1.2); }
}
.radar-scope-lines {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle, transparent 20%, rgba(16,185,129,0.05) 21%, transparent 22%, transparent 40%, rgba(16,185,129,0.05) 41%, transparent 42%, transparent 60%, rgba(16,185,129,0.05) 61%, transparent 62%),
    linear-gradient(to right, transparent 49.5%, rgba(16,185,129,0.06) 50%, transparent 50.5%),
    linear-gradient(to bottom, transparent 49.5%, rgba(16,185,129,0.06) 50%, transparent 50.5%);
  z-index: 0;
  pointer-events: none;
}
.radar-label {
  font-family: var(--font-mono);
  font-size: 8.5px;
  color: rgba(16, 185, 129, 0.85);
  text-transform: uppercase;
  z-index: 2;
  letter-spacing: 0.08em;
  text-shadow: 0 0 4px rgba(16, 185, 129, 0.6);
  font-weight: 700;
}
.presence-sky {
  background: linear-gradient(to bottom, #0f172a, #1f2937);
}

/* ── 05. HEAT PROTECTION SIMULATOR ── */
.heat-sim {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding: 6px 0;
}
.sim-thermometer-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 140px;
  height: 120px;
  padding: 0 6px;
}
.thermometer-glass {
  width: 16px;
  height: 104px;
  background: rgba(0, 0, 0, 0.06);
  border: 2px solid var(--ink-2);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.15);
}
html[data-theme="dark"] .thermometer-glass {
  background: rgba(255, 255, 255, 0.08);
  border-color: #4b5563;
}
.thermometer-mercury {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: var(--bc-accent);
  border-radius: 8px;
  transition: height 0.5s cubic-bezier(0.25, 1, 0.5, 1), background-color 0.4s, box-shadow 0.4s;
  box-shadow: 0 0 8px var(--bc-accent-soft);
}
.thermometer-mercury.hot {
  background: var(--bc-red);
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.7);
}
.thermometer-labels {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  font-family: var(--font-mono);
  font-size: 8.5px;
  color: var(--ink-3);
  text-transform: uppercase;
  font-weight: 600;
  padding: 4px 0;
  letter-spacing: 0.02em;
}
.heat-sky {
  background: linear-gradient(to bottom, #0284c7, #bae6fd);
  position: relative;
}
.solar-glow {
  position: absolute;
  top: -24px; right: -24px;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.8) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1;
  animation: solarPulse 1.8s infinite alternate;
  pointer-events: none;
}
.solar-glow.active {
  opacity: 1;
}
@keyframes solarPulse {
  0% { transform: scale(0.85); opacity: 0.6; }
  100% { transform: scale(1.2); opacity: 1; }
}

/* ── CONTROLS & STUDIO LINEAR SLIDERS ── */
.widget-controls, .widget-slider-controls {
  border-top: 1px solid color-mix(in srgb, var(--rule) 60%, transparent);
  padding-top: 18px;
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.widget-controls.flex-controls {
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
}
.widget-controls.flex-controls .ctrl-btn {
  flex: 1;
}
.sim-readout {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  font-weight: 700;
  text-align: right;
  letter-spacing: 0.02em;
}
.sim-readout span {
  color: var(--bc-accent);
  font-weight: 700;
  text-shadow: 0 0 10px var(--bc-accent-glow);
}

/* Capacitive Hardware-Style Telemetry Button */
.sim-btn, .ctrl-btn {
  background: linear-gradient(135deg, var(--paper-2), var(--paper-3));
  border: 1px solid var(--rule);
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 8px;
  padding: 12px 18px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  text-align: center;
}
.sim-btn:hover, .ctrl-btn:hover {
  border-color: var(--bc-accent);
  color: var(--bc-accent);
  transform: translateY(-1.5px);
  box-shadow: 0 6px 20px var(--bc-accent-soft), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
.sim-btn:active, .ctrl-btn:active {
  transform: translateY(0.5px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}

/* Linear Studio Mixer Slider */
.sim-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--rule-2);
  border-radius: 2px;
  outline: none;
  margin: 6px 0;
  transition: background 0.3s;
}
.sim-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bc-accent);
  border: 2px solid var(--paper);
  box-shadow: 0 0 8px var(--bc-accent-glow), 0 2px 5px rgba(0,0,0,0.25);
  cursor: pointer;
  transition: transform 0.15s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.2s;
}
.sim-slider::-webkit-slider-thumb:hover {
  transform: scale(1.25);
  background: #ffffff;
  box-shadow: 0 0 12px var(--bc-accent-glow), 0 2px 8px rgba(0,0,0,0.35);
}
.sim-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bc-accent);
  border: 2px solid var(--paper);
  box-shadow: 0 0 8px var(--bc-accent-glow), 0 2px 5px rgba(0,0,0,0.25);
  cursor: pointer;
  transition: transform 0.15s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.2s;
}
.sim-slider::-moz-range-thumb:hover {
  transform: scale(1.25);
  background: #ffffff;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  font-weight: 700;
}
.slider-label-row .pin {
  font-size: 9px;
  font-weight: 700;
  background: var(--bc-red-soft);
  color: var(--bc-red);
  border-color: rgba(239, 68, 68, 0.25);
  border-radius: 4px;
}

/* ── COLOR-SHIFTING AMBIENT GLOW SYSTEM FOR TABS ── */
.auto-tabs {
  transition: border-color 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.auto-tabs[data-active-pane="morning"] {
  border-color: rgba(245, 158, 11, 0.35);
  box-shadow: 0 20px 60px -15px rgba(245, 158, 11, 0.12), 0 0 30px rgba(245, 158, 11, 0.06);
}
.auto-tabs[data-active-pane="sunset"] {
  border-color: rgba(139, 92, 246, 0.35);
  box-shadow: 0 20px 60px -15px rgba(139, 92, 246, 0.12), 0 0 30px rgba(139, 92, 246, 0.06);
}
.auto-tabs[data-active-pane="night"] {
  border-color: rgba(14, 165, 233, 0.35);
  box-shadow: 0 20px 60px -15px rgba(14, 165, 233, 0.12), 0 0 30px rgba(14, 165, 233, 0.06);
}
.auto-tabs[data-active-pane="presence"] {
  border-color: rgba(16, 185, 129, 0.35);
  box-shadow: 0 20px 60px -15px rgba(16, 185, 129, 0.12), 0 0 30px rgba(16, 185, 129, 0.06);
}
.auto-tabs[data-active-pane="heat"] {
  border-color: rgba(239, 68, 68, 0.35);
  box-shadow: 0 20px 60px -15px rgba(239, 68, 68, 0.12), 0 0 30px rgba(239, 68, 68, 0.06);
}

/* Dynamically shift the sliding indicator color based on active automation */
.auto-tabs[data-active-pane="morning"] .auto-rail-indicator {
  border-color: var(--bc-warm);
  box-shadow: 0 0 20px var(--bc-warm-soft),
              inset 0 0 12px color-mix(in srgb, var(--bc-warm) 8%, transparent);
}
.auto-tabs[data-active-pane="sunset"] .auto-rail-indicator {
  border-color: var(--bc-violet);
  box-shadow: 0 0 20px var(--bc-violet-soft),
              inset 0 0 12px color-mix(in srgb, var(--bc-violet) 8%, transparent);
}
.auto-tabs[data-active-pane="night"] .auto-rail-indicator {
  border-color: var(--bc-accent);
  box-shadow: 0 0 20px var(--bc-accent-soft),
              inset 0 0 12px color-mix(in srgb, var(--bc-accent) 8%, transparent);
}
.auto-tabs[data-active-pane="presence"] .auto-rail-indicator {
  border-color: var(--bc-green);
  box-shadow: 0 0 20px var(--bc-green-soft),
              inset 0 0 12px color-mix(in srgb, var(--bc-green) 8%, transparent);
}
.auto-tabs[data-active-pane="heat"] .auto-rail-indicator {
  border-color: var(--bc-red);
  box-shadow: 0 0 20px var(--bc-red-soft),
              inset 0 0 12px color-mix(in srgb, var(--bc-red) 8%, transparent);
}

/* Unique tab icon highlights */
.auto-tab[data-auto-tab="morning"].active .at-icon {
  background: var(--bc-warm-soft) !important;
  color: var(--bc-warm) !important;
  box-shadow: 0 0 12px var(--bc-warm-soft) !important;
}
.auto-tab[data-auto-tab="sunset"].active .at-icon {
  background: var(--bc-violet-soft) !important;
  color: var(--bc-violet) !important;
  box-shadow: 0 0 12px var(--bc-violet-soft) !important;
}
.auto-tab[data-auto-tab="night"].active .at-icon {
  background: var(--bc-accent-soft) !important;
  color: var(--bc-accent) !important;
  box-shadow: 0 0 12px var(--bc-accent-soft) !important;
}
.auto-tab[data-auto-tab="presence"].active .at-icon {
  background: var(--bc-green-soft) !important;
  color: var(--bc-green) !important;
  box-shadow: 0 0 12px var(--bc-green-soft) !important;
}
.auto-tab[data-auto-tab="heat"].active .at-icon {
  background: var(--bc-red-soft) !important;
  color: var(--bc-red) !important;
  box-shadow: 0 0 12px var(--bc-red-soft) !important;
}

/* Synchronize dynamic hint color overrides */
.auto-tab[data-auto-tab="morning"].active .at-hint {
  color: var(--bc-warm) !important;
}
.auto-tab[data-auto-tab="sunset"].active .at-hint {
  color: var(--bc-violet) !important;
}
.auto-tab[data-auto-tab="night"].active .at-hint {
  color: var(--bc-accent) !important;
}
.auto-tab[data-auto-tab="presence"].active .at-hint {
  color: var(--bc-green) !important;
}
.auto-tab[data-auto-tab="heat"].active .at-hint {
  color: var(--bc-red) !important;
}

/* Responsive grid layouts */
@media (max-width: 1100px) {
  .ap-grid-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* Responsive automations */
@media (max-width: 900px) {
  .auto-tabs {
    grid-template-columns: 1fr;
  }
  .auto-rail {
    flex-direction: row;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
    padding: 6px;
    gap: 4px;
    border-radius: 18px 18px 0 0;
    -webkit-overflow-scrolling: touch;
  }
  .auto-rail::-webkit-scrollbar { display: none; }
  .auto-tab {
    flex: 0 0 auto;
    padding: 10px 14px;
    border-radius: 10px;
    gap: 8px;
  }
  .auto-rail-indicator {
    display: none;
  }
  .auto-panel {
    padding: 28px 24px;
    min-height: auto;
  }
  .at-hint { display: none; }
  .at-name {
    font-size: 12px;
    white-space: nowrap;
  }
  .at-icon {
    width: 32px;
    height: 32px;
    font-size: 20px;
    border-radius: 8px;
  }
  .at-status { display: none; }
  .ap-hero-icon {
    width: 60px;
    height: 60px;
    font-size: 36px;
    border-radius: 14px;
    margin-bottom: 16px;
  }
  .ap-title { font-size: 22px; }
}

/* Automation tab reveal stagger */
.auto-tab {
  opacity: 0;
  transform: translateX(-12px);
  transition-property: opacity, transform, background;
  transition-duration: 0.6s, 0.6s, 0.3s;
  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}
.block.in .auto-tab {
  opacity: 1;
  transform: translateX(0);
}
.block.in .auto-tab:nth-child(1) { transition-delay: 0.05s; }
.block.in .auto-tab:nth-child(2) { transition-delay: 0.10s; }
.block.in .auto-tab:nth-child(3) { transition-delay: 0.15s; }
.block.in .auto-tab:nth-child(4) { transition-delay: 0.20s; }
.block.in .auto-tab:nth-child(5) { transition-delay: 0.25s; }


/* ============================================================
   PREMIUM AMBIENT & ANIMATION SYSTEMS
   ============================================================ */

/* Section marker glow on reveal */
.block.in .bh-marker {
  animation: markerGlow 3s ease-in-out infinite alternate;
}
@keyframes markerGlow {
  0% { text-shadow: none; }
  100% { text-shadow: 0 0 12px var(--bc-accent-glow); }
}

/* Section title typographic unfold */
.bh-title {
  transition: letter-spacing 1.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 1s ease;
}
.block.pre-reveal .bh-title {
  letter-spacing: -0.06em;
}
.block.in .bh-title {
  letter-spacing: -0.03em;
}

/* Bento icon pulse ring on hover */
.bento-cell .fg-icon {
  position: relative;
}
.bento-cell .fg-icon::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 14px;
  border: 2px solid var(--bc-accent);
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.4s, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}
.bento-cell:hover .fg-icon::after {
  opacity: 0.4;
  transform: scale(1.15);
}

/* Bento number color on hover */
.bento-cell:hover .fg-num {
  color: var(--bc-accent);
}

/* Hero meta cell accent on hover */
.bc-hero-meta .m-cell {
  position: relative;
}
.bc-hero-meta .m-cell::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--bc-grad);
  transition: width 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.bc-hero-meta .m-cell:hover::after {
  width: 100%;
}

/* Control button press feedback */
.ctrl-btn:active {
  transform: scale(0.97);
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.12);
}

/* Accordion open gradient sweep */
.acc-row.open {
  background: linear-gradient(135deg, var(--bc-accent-soft) 0%, color-mix(in srgb, var(--bc-accent-soft) 40%, transparent) 100%);
}

/* Stepper readout value glow */
.stepper-readouts .sv {
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 8px var(--bc-accent-glow);
}

/* Motor gear enhanced glow */
.motor-gear circle:first-child {
  filter: drop-shadow(0 0 6px var(--bc-accent-glow)) drop-shadow(0 0 16px var(--bc-accent-soft));
}

/* Touch FSM stats card shimmer border */
.tp-stats > div {
  position: relative;
  overflow: hidden;
}
.tp-stats > div::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 10px;
  padding: 1px;
  background: linear-gradient(135deg, transparent 0%, var(--bc-accent-glow) 50%, transparent 100%);
  background-size: 300% 300%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.tp-stats > div:hover::after {
  opacity: 1;
  animation: statShimmer 2s linear infinite;
}
@keyframes statShimmer {
  0% { background-position: 0% 0%; }
  100% { background-position: 100% 100%; }
}

/* Diagram container ambient glow */
.arch-diagram::before, .state-diagram::before {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 60%; height: 60%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, var(--bc-accent-glow) 0%, transparent 70%);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

/* SVG path draw-in animation */
.arch-diagram.draw-in .arch-line,
.state-diagram.draw-in .sd-edge path {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: pathDrawIn 1.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.arch-diagram.draw-in .arch-line:nth-child(1) { animation-delay: 0.1s; }
.arch-diagram.draw-in .arch-line:nth-child(2) { animation-delay: 0.2s; }
.arch-diagram.draw-in .arch-line:nth-child(3) { animation-delay: 0.3s; }
@keyframes pathDrawIn {
  to { stroke-dashoffset: 0; }
}

/* SVG node hover glow */
.arch-node:hover rect, .sd-node:hover rect {
  filter: drop-shadow(0 0 8px var(--bc-accent-glow)) drop-shadow(0 0 16px var(--bc-accent-soft));
}

/* Automation rule card unique left accents */
.rule-card { border-left: 3px solid transparent; }
.rule-card:nth-child(1) { border-left-color: var(--bc-accent); }
.rule-card:nth-child(2) { border-left-color: var(--bc-violet); }
.rule-card:nth-child(3) { border-left-color: var(--bc-warm); }
.rule-card:nth-child(4) { border-left-color: var(--bc-green); }
.rule-card:nth-child(5) { border-left-color: var(--bc-red); }

/* Connectivity pill breathing glow */
.conn-pill {
  animation: pillBreathe 3s ease-in-out infinite alternate;
}
@keyframes pillBreathe {
  0% { box-shadow: 0 0 0 rgba(14, 165, 233, 0); }
  100% { box-shadow: 0 0 10px var(--bc-accent-glow); }
}

/* Table header gradient border */
.wiring-table th, .auto-table th {
  border-image: linear-gradient(90deg, var(--bc-accent) 0%, color-mix(in srgb, var(--bc-accent) 20%, transparent) 100%) 1 !important;
  border-image-slice: 1 !important;
}

/* EEPROM console retro scan-line effect */
.eeprom-console .console-body::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px,
    transparent 2px,
    rgba(0, 0, 0, 0.08) 2px,
    rgba(0, 0, 0, 0.08) 4px
  );
  pointer-events: none;
  z-index: 1;
  border-radius: 0 0 8px 8px;
}
.eeprom-console .console-body {
  position: relative;
}

/* Dark mode enhanced glassmorphic depth */
html[data-theme="dark"] .bento-cell,
html[data-theme="dark"] .rule-card,
html[data-theme="dark"] .conn-card,
html[data-theme="dark"] .safe-cell {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3), 0 0 1px rgba(255, 255, 255, 0.05);
}
html[data-theme="dark"] .bento-cell:hover,
html[data-theme="dark"] .rule-card:hover,
html[data-theme="dark"] .conn-card:hover,
html[data-theme="dark"] .safe-cell:hover {
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4), 0 0 30px var(--bc-accent-soft), inset 0 1px 0 rgba(255,255,255,0.06);
}

/* Enhanced scrollbar */
::-webkit-scrollbar-thumb {
  transition: width 0.3s;
}
::-webkit-scrollbar:hover {
  width: 8px;
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .block.pre-reveal, [data-reveal].pre-reveal, .layout-figure.pre-reveal, .eeprom-figure.pre-reveal {
    opacity: 1; transform: none; filter: none;
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .bc-hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .stepper-wrap { grid-template-columns: 1fr; }
  .twt-stats { grid-template-columns: 1fr; }
  .twt-prose { columns: 1; }
  .touch-tabs { grid-template-columns: 1fr; }
  .touch-rail { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--rule); padding: 6px; gap: 4px; border-radius: 14px 14px 0 0; }
  .touch-tab { border-radius: 8px; flex: 0 0 auto; padding: 12px 16px; }
  .touch-panel { padding: 28px 24px; }
  .two-col-prose { columns: 1; }
  .ap-content { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 900px) {
  .page > .block { padding: 64px 0 16px; }
  .block-head { margin-bottom: 24px; }
  .block-head .bh-row { flex-direction: column; align-items: flex-start; gap: 6px; padding-bottom: 10px; margin-bottom: 14px; }
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .safety-grid, .build-grid { grid-template-columns: 1fr 1fr; }
  .conn-grid, .rules-grid { grid-template-columns: 1fr; }
  .bc-hero-meta { grid-template-columns: 1fr 1fr; gap: 1px; }
  .tp-stats { grid-template-columns: 1fr; }
  .eeprom-bar { grid-template-columns: 1fr; height: auto; border-radius: 8px; }
  .eeprom-bar .pad { display: none; }
  .eeprom-bar .slot, .eeprom-bar .flag { border-bottom: 1px solid var(--rule); padding: 14px 16px; }
  .eeprom-bar .flag { border-bottom: 0; border-radius: 0 0 8px 8px; }
  .stepper-readouts { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .bento-grid, .safety-grid, .build-grid { grid-template-columns: 1fr; }
  .bc-title { font-size: clamp(40px, 12vw, 72px); }
  .wiring-table, .auto-table { font-size: 11px; }
  .wiring-table th, .wiring-table td, .auto-table th, .auto-table td { padding: 9px 11px; }
  .arch-diagram, .state-diagram, .protocol-viz { padding: 16px 14px; border-radius: 10px; }
  .stepper-readouts { grid-template-columns: 1fr; }
}

/* ============================================================
   BLUEPRINT MODE COMPATIBILITY OVERRIDES
   ============================================================ */
html.blueprint {
  --bc-accent: var(--signal) !important;
  --bc-accent-2: var(--signal-2) !important;
  --bc-accent-soft: rgba(255, 209, 102, 0.08) !important;
  --bc-accent-glow: rgba(255, 209, 102, 0.20) !important;
  --bc-accent-mid: rgba(255, 209, 102, 0.40) !important;
  
  --bc-warm: var(--signal) !important;
  --bc-warm-soft: rgba(255, 209, 102, 0.08) !important;
  
  --bc-green: var(--signal) !important;
  --bc-green-soft: rgba(255, 209, 102, 0.08) !important;
  
  --bc-violet: var(--signal) !important;
  --bc-violet-soft: rgba(255, 209, 102, 0.08) !important;
  
  --bc-red: var(--signal) !important;
  --bc-red-soft: rgba(255, 209, 102, 0.08) !important;
  
  --bc-grad: linear-gradient(135deg, var(--signal) 0%, var(--signal-2) 100%) !important;
  --bc-grad-warm: linear-gradient(135deg, var(--signal) 0%, var(--signal-2) 100%) !important;
  
  --bc-glass: rgba(19, 48, 87, 0.50) !important;
  --bc-glass-border: rgba(44, 71, 115, 0.60) !important;
  --bc-glass-dark: rgba(10, 37, 64, 0.60) !important;
  --bc-glass-border-dark: rgba(44, 71, 115, 0.40) !important;
}

/* Console components override for Blueprint Mode */
html.blueprint .eeprom-console {
  background: var(--paper) !important;
  border-color: var(--rule) !important;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3) !important;
}
html.blueprint .console-head {
  background: var(--paper-2) !important;
  border-bottom-color: var(--rule) !important;
  color: var(--ink-3) !important;
}

/* Luxury window graphic components override for Blueprint Mode */
html.blueprint .sim-window {
  background: var(--paper) !important;
  border-color: var(--rule) !important;
  box-shadow: 0 12px 36px rgba(0,0,0,0.15), 
              inset 0 0 20px rgba(0,0,0,0.4),
              0 0 0 1px rgba(255,255,255,0.02) !important;
}
html.blueprint .window-blind {
  background: repeating-linear-gradient(
    to bottom,
    var(--paper-2) 0px,
    var(--paper-2) 8px,
    var(--rule) 8px,
    var(--rule) 10px
  ) !important;
  border-bottom-color: var(--rule) !important;
  box-shadow: 0 6px 16px rgba(0,0,0,0.2) !important;
}

/* Active automations border glow override for Blueprint Mode */
html.blueprint .auto-tabs {
  border-color: rgba(255, 209, 102, 0.35) !important;
  box-shadow: 0 20px 60px -15px rgba(255, 209, 102, 0.12), 0 0 30px rgba(255, 209, 102, 0.06) !important;
}
html.blueprint .auto-tabs[data-active-pane="morning"],
html.blueprint .auto-tabs[data-active-pane="sunset"],
html.blueprint .auto-tabs[data-active-pane="night"],
html.blueprint .auto-tabs[data-active-pane="presence"],
html.blueprint .auto-tabs[data-active-pane="heat"] {
  border-color: rgba(255, 209, 102, 0.35) !important;
  box-shadow: 0 20px 60px -15px rgba(255, 209, 102, 0.12), 0 0 30px rgba(255, 209, 102, 0.06) !important;
}

html.blueprint .auto-rail-indicator {
  background: rgba(19, 48, 87, 0.6) !important;
  border-color: var(--signal) !important;
  box-shadow: 0 0 24px rgba(255, 209, 102, 0.4), inset 0 0 16px rgba(255, 209, 102, 0.15) !important;
}
html.blueprint .auto-tab.active .at-icon {
  background: var(--signal) !important;
  color: #0b1528 !important;
  box-shadow: 0 0 14px rgba(255, 209, 102, 0.45) !important;
}
html.blueprint .auto-tab.active .at-hint {
  color: var(--signal) !important;
}
html.blueprint .ap-why-card {
  border-left-color: var(--signal) !important;
  background: rgba(19, 48, 87, 0.3) !important;
  border-color: var(--bc-glass-border) !important;
}

/* ============================================================
   PREMIUM ANIMATION ENHANCEMENTS — v3
   ============================================================ */

/* Enhanced bc-param inline badges with shimmer */
.bc-param {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--bc-accent);
  background: linear-gradient(90deg, var(--bc-accent-soft) 0%, color-mix(in srgb, var(--bc-accent) 8%, transparent) 50%, var(--bc-accent-soft) 100%);
  background-size: 200% 100%;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid color-mix(in srgb, var(--bc-accent) 15%, transparent);
  animation: paramShimmer 4s ease-in-out infinite;
  display: inline-block;
}
@keyframes paramShimmer {
  0%, 100% { background-position: 200% 0; }
  50% { background-position: -200% 0; }
}

/* Active FSM node breathing pulse */
.sd-node.active rect {
  animation: fsmNodePulse 2.5s ease-in-out infinite;
}
@keyframes fsmNodePulse {
  0%, 100% { filter: drop-shadow(0 0 12px var(--bc-accent-glow)); }
  50% { filter: drop-shadow(0 0 22px var(--bc-accent-mid)); }
}

/* Block head title reveal micro-animation */
.block-head .bh-title {
  transition: letter-spacing 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.block.in .block-head .bh-title,
[data-reveal].in .block-head .bh-title {
  letter-spacing: -0.03em;
}
.block.pre-reveal .block-head .bh-title,
[data-reveal].pre-reveal .block-head .bh-title {
  letter-spacing: 0.02em;
}

/* Enhanced section marker animation */
.bh-marker::before {
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.3s;
}
.block.pre-reveal .bh-marker::before {
  width: 0;
}
.block.in .bh-marker::before,
[data-reveal].in .bh-marker::before {
  width: 28px;
}

/* Table row interactive glide */
.wiring-table tbody tr, .auto-table tbody tr {
  transition: background 0.25s, transform 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}
.wiring-table tbody tr:hover, .auto-table tbody tr:hover {
  transform: translateX(4px);
}

/* Touch FSM stats card spring bounce hover */
.tp-stats > div {
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}
.tp-stats > div:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06), 0 0 16px var(--bc-accent-soft);
}

/* Hero photo glassmorphic container enhanced breathing */
.bc-hero-photo {
  transition: box-shadow 0.5s, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.bc-hero-photo:hover {
  box-shadow: 0 28px 72px rgba(0,0,0,0.12), 0 0 60px var(--bc-accent-soft);
  transform: translateY(-4px);
}

/* Wiring table pin badge pop */
.pin {
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.pin:hover {
  transform: scale(1.08);
  box-shadow: 0 0 12px var(--bc-accent-glow);
  background: color-mix(in srgb, var(--bc-accent) 15%, transparent);
}

/* Connectivity pill shimmer */
.conn-pill {
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.conn-pill::after {
  content: "";
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  animation: pillSweep 3s ease-in-out infinite;
}
@keyframes pillSweep {
  0%, 100% { left: -100%; }
  50% { left: 100%; }
}

/* Enhanced stepper readout hover */
.stepper-readouts .sr {
  transition: background 0.3s, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.stepper-readouts .sr:hover {
  background: var(--bc-accent-soft);
  transform: scale(1.02);
}
.stepper-readouts .sv {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.stepper-readouts .sr:hover .sv {
  transform: scale(1.05);
}

/* EEPROM bar slot hover */
.eeprom-bar .slot {
  transition: all 0.3s, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1) !important;
}
.eeprom-bar .slot:hover {
  background: var(--bc-accent-soft) !important;
  transform: scale(1.01);
}

/* Dark mode glassmorphic card inner glow */
html[data-theme="dark"] .bento-cell:hover::after,
html[data-theme="dark"] .safe-cell:hover::after,
html[data-theme="dark"] .build-card:hover::after {
  opacity: 0.45;
}

/* Automation hero icon glow pulse */
.ap-hero-icon {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s;
}
.auto-pane.active .ap-hero-icon {
  animation: heroIconEntrance 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes heroIconEntrance {
  0% { transform: scale(0.8) rotate(-10deg); opacity: 0; }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

/* Control button premium press effect */
.ctrl-btn {
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  overflow: hidden;
}
.ctrl-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, var(--bc-accent-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.ctrl-btn:hover::after { opacity: 0.3; }
.ctrl-btn.active::after { opacity: 0.5; }

/* Blueprint mode enhanced breathing for active nodes */
html.blueprint .sd-node.active rect {
  animation: fsmNodePulseBlueprint 2.5s ease-in-out infinite;
}
@keyframes fsmNodePulseBlueprint {
  0%, 100% { filter: drop-shadow(0 0 12px rgba(255, 209, 102, 0.3)); }
  50% { filter: drop-shadow(0 0 24px rgba(255, 209, 102, 0.6)); }
}