/* =============================================================================
   IT GURUJAN — "CIRCUIT" edition
   A living printed-circuit board: matte fibreglass substrate, copper routing,
   mint solder-mask highlights, and current that visibly moves through the page.

   Colour system
     substrate  #050908   near-black PCB base (matches <meta name=theme-color>)
     copper     #FF8A3D   THE accent — signal, power, primary CTA
     mint       #37F5C8   secondary rail — status / live / OK
   Both accents are the exact hexes the inline <pattern id="pcbTile"> already
   uses in index.html, so the fixed board texture and the UI are one material.
   ============================================================================= */

:root{
  /* substrate */
  --substrate:   #050908;
  --panel:       #0a1210;

  /* copper */
  --copper:      #FF8A3D;
  --copper-hi:   #FFB27A;
  --copper-deep: #C05F16;
  --cu-06: rgba(255,138,61,.06);
  --cu-22: rgba(255,138,61,.22);
  --cu-38: rgba(255,138,61,.38);
  --cu-60: rgba(255,138,61,.60);

  /* mint / solder-mask rail */
  --mint:        #37F5C8;
  --mint-hi:     #8CFFE4;
  --mt-08: rgba(55,245,200,.08);
  --mt-16: rgba(55,245,200,.16);
  --mt-30: rgba(55,245,200,.30);
  --mt-55: rgba(55,245,200,.55);

  /* ink */
  --ink:       #E9F3EE;
  --ink-dim:   #A3B6AE;
  --ink-faint: #7E9089;

  --edge:      rgba(146,182,170,.16);
  --edge-soft: rgba(146,182,170,.09);

  --font-body: 'Inter', system-ui, sans-serif;
  --font-head: 'Sora', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  --nav-h: 70px;
  --wrap: 1200px;
  --r: 14px;
  --ease: cubic-bezier(.16,.84,.44,1);
}

/* ---------------------------------------------------------------- reset --- */
*, *::before, *::after{ box-sizing: border-box; }

html{
  scroll-behavior: smooth;
  background: var(--substrate);
  -webkit-text-size-adjust: 100%;
}

body{
  margin: 0;
  background: var(--substrate);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.62;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul, ol{ margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4{ margin: 0; font-family: var(--font-head); font-weight: 700; line-height: 1.18; }
p{ margin: 0; }
dl, dd{ margin: 0; }
blockquote{ margin: 0; }
button{ font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
svg{ display: block; }

.mono{ font-family: var(--font-mono); font-feature-settings: "ss01"; }

::selection{ background: var(--copper); color: #180801; }

:focus-visible{
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

.wrap{
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

main{ position: relative; z-index: 1; }

/* Grid/flex children default to min-width:auto, which lets an intrinsically
   sized child (the schematic SVGs, a long URL) push a track wider than its
   share and produce horizontal scroll. Opt every layout child out of that. */
.hero-grid > *,
.product-grid > *,
.about-grid > *,
.sector > *,
.ic-grid > *,
.app-grid > *,
.port-grid > *,
.chain-grid > *,
.product-visual > *{ min-width: 0; }

section[id]{ scroll-margin-top: calc(var(--nav-h) + 18px); }

/* =============================================================================
   BOARD SUBSTRATE — two stacked copies of the same silkscreen pattern.
   .board-base is the always-on faint copper etch. .board-hot is the identical
   tile at full strength, masked to a soft circle that follows the pointer, so
   moving the mouse reads as running a probe lamp over the copper.
   ============================================================================= */
.board-layer{
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.board-base{
  opacity: .085;
  animation: board-breathe 14s ease-in-out infinite;
}

.board-hot{
  opacity: 0;
  transition: opacity .45s var(--ease);
  -webkit-mask-image: radial-gradient(circle 230px at var(--probe-x, 50%) var(--probe-y, 40%),
                      #000 0%, rgba(0,0,0,.5) 48%, transparent 74%);
          mask-image: radial-gradient(circle 230px at var(--probe-x, 50%) var(--probe-y, 40%),
                      #000 0%, rgba(0,0,0,.5) 48%, transparent 74%);
}
body.probe-on .board-hot{ opacity: .5; }

.probe-glow{
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity .5s var(--ease);
  background: radial-gradient(circle 260px at var(--probe-x, 50%) var(--probe-y, 40%),
              rgba(255,138,61,.10) 0%, rgba(55,245,200,.05) 42%, transparent 72%);
}
body.probe-on .probe-glow{ opacity: 1; }

@keyframes board-breathe{
  0%, 100%{ opacity: .075; }
  50%     { opacity: .105; }
}

/* soft vignette so glowing text always sits on a settled ground */
body::after{
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 55% at 50% 0%, rgba(255,138,61,.055), transparent 62%),
    radial-gradient(ellipse 70% 60% at 50% 100%, rgba(55,245,200,.045), transparent 65%);
}

/* ------------------------------------------------------- power rail ------- */
.power-rail{
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 3px;
  z-index: 70;
  background: rgba(146,182,170,.10);
  pointer-events: none;
}
.power-rail-fill{
  display: block;
  width: 100%;
  height: 0%;
  background: linear-gradient(180deg, var(--mint), var(--copper) 55%, var(--copper-hi));
  box-shadow: 0 0 12px rgba(255,138,61,.75), 0 0 4px rgba(55,245,200,.6);
}

/* =============================================================================
   HEADER — the board's edge connector
   ============================================================================= */
.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 60;
  background: rgba(5,9,8,.72);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
          backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--edge-soft);
  transition: background .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-stuck{
  background: rgba(5,9,8,.92);
  border-bottom-color: var(--cu-22);
  box-shadow: 0 14px 40px -22px #000;
}

.header-row{
  height: 100%;
  display: flex;
  align-items: center;
  gap: 18px;
}

/* gold "fingers" along the header's bottom edge, like a PCI card contact strip */
.header-fingers,
.footer-fingers{
  position: absolute;
  left: 0; right: 0;
  height: 7px;
  pointer-events: none;
  background: repeating-linear-gradient(90deg,
              var(--cu-60) 0 13px, transparent 13px 26px);
  opacity: .38;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.header-fingers{ bottom: -7px; }
.footer-fingers{ top: -7px; }

.logo{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo img{
  width: 30px; height: 30px;
  filter: drop-shadow(0 0 8px rgba(255,138,61,.45));
}
.logo-text{
  font-family: var(--font-head);
  font-weight: 800;
  font-size: .96rem;
  letter-spacing: .06em;
  white-space: nowrap;
}
.logo-text em{
  font-style: normal;
  font-weight: 500;
  font-size: .68rem;
  color: var(--copper);
  letter-spacing: .04em;
  margin-left: 3px;
  opacity: .85;
}

.main-nav{
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-link{
  position: relative;
  padding: 8px 12px;
  font-size: .86rem;
  font-weight: 500;
  color: var(--ink-dim);
  border-radius: 5px;
  transition: color .22s var(--ease), background .22s var(--ease);
}
.nav-link::after{
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 2px;
  height: 1px;
  background: var(--copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
  box-shadow: 0 0 8px rgba(255,138,61,.8);
}
.nav-link:hover{ color: var(--ink); background: rgba(255,255,255,.03); }
.nav-link:hover::after,
.nav-link.active::after{ transform: scaleX(1); }
.nav-link.active{ color: var(--copper); }

.header-tools{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 8px;
}

/* ------------------------------------------------- editions theme picker -- */
.theme-picker{ position: relative; }

.theme-toggle{
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--edge);
  border-radius: 8px;
  color: var(--ink-dim);
  background: rgba(255,255,255,.02);
  transition: color .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.theme-toggle:hover,
.theme-toggle[aria-expanded="true"]{
  color: var(--copper);
  border-color: var(--cu-38);
  box-shadow: 0 0 18px -6px rgba(255,138,61,.7);
}

.theme-menu{
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  z-index: 80;
  min-width: 190px;
  padding: 8px;
  background: rgba(8,14,12,.97);
  -webkit-backdrop-filter: blur(16px);
          backdrop-filter: blur(16px);
  border: 1px solid var(--cu-22);
  border-radius: 12px;
  box-shadow: 0 26px 60px -22px #000, 0 0 0 1px rgba(0,0,0,.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(.97);
  transform-origin: top right;
  transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
}
.theme-menu.open{
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.theme-menu-label{
  display: block;
  padding: 6px 10px 8px;
  font-size: .62rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border-bottom: 1px dashed var(--edge-soft);
  margin-bottom: 6px;
}
.theme-option{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 7px;
  font-size: .84rem;
  color: var(--ink-dim);
  transition: background .18s var(--ease), color .18s var(--ease);
}
.theme-option:hover{ background: rgba(255,138,61,.10); color: var(--ink); }
.theme-option.active{ color: var(--copper); background: rgba(255,138,61,.08); }

.theme-dot{
  width: 9px; height: 9px;
  border-radius: 2px;
  flex-shrink: 0;
  box-shadow: 0 0 8px currentColor;
}
.dot-light    { background: #f4f4f2; }
.dot-cinematic{ background: #d4a15a; }
.dot-voyage   { background: #6ec5ff; }
.dot-kinetic  { background: #ff5c8a; }
.dot-terminal { background: #3dfb7c; }
.dot-orbit    { background: #2B7FD1; }
.dot-vault    { background: #c9a227; }
.dot-hud      { background: #39ff9a; }
.dot-blueprint{ background: #4d8dff; }
.dot-arcade   { background: #b26bff; }
.dot-circuit  { background: var(--copper); }
.dot-all      { background: linear-gradient(135deg, var(--copper), var(--mint)); }

/* ------------------------------------------------------- nav toggle ------- */
.nav-toggle{
  display: none;
  width: 40px; height: 38px;
  border: 1px solid var(--edge);
  border-radius: 8px;
  padding: 0 9px;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}
.nav-toggle span{
  display: block;
  height: 2px;
  width: 100%;
  background: var(--copper);
  border-radius: 2px;
  transition: transform .28s var(--ease), opacity .2s var(--ease);
}
.nav-toggle.open span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity: 0; }
.nav-toggle.open span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

/* -------------------------------------------------------- mobile menu ----- */
.mobile-menu{
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  max-height: calc(100vh - var(--nav-h));
  max-height: calc(100dvh - var(--nav-h));
  overflow-y: auto;
  overscroll-behavior: contain;
  z-index: 55;
  padding: 18px 24px 34px;
  background: rgba(5,9,8,.98);
  -webkit-backdrop-filter: blur(18px);
          backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--cu-22);
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .26s var(--ease), transform .26s var(--ease), visibility .26s;
}
.mobile-menu.open{ opacity: 1; visibility: visible; transform: translateY(0); }

.mobile-menu > a{
  display: block;
  padding: 13px 4px;
  font-family: var(--font-head);
  font-size: 1.06rem;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid var(--edge-soft);
}
.mobile-menu > a::before{
  content: "▸ ";
  color: var(--copper);
  font-size: .8em;
}

.mobile-editions{ margin-top: 22px; }
.mobile-editions-label{
  display: block;
  font-size: .64rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 10px;
}
.mobile-editions-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 8px;
}
.mobile-editions-grid a{
  padding: 9px 10px;
  font-family: var(--font-mono);
  font-size: .74rem;
  text-align: center;
  color: var(--ink-dim);
  border: 1px solid var(--edge);
  border-radius: 7px;
  background: rgba(255,255,255,.02);
}
.mobile-editions-grid a.is-current,
.footer-editions a.is-current{
  color: var(--copper);
  border-color: var(--cu-38);
  background: rgba(255,138,61,.08);
}

/* =============================================================================
   SHARED PARTS
   ============================================================================= */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .09em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 7px;
  white-space: nowrap;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease),
              background .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
}
.btn-primary{
  background: linear-gradient(180deg, #FFA155, #E4741D);
  border-color: var(--copper-hi);
  color: #1B0A01;
  box-shadow: 0 0 26px -8px rgba(255,138,61,.85), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 0 34px -6px rgba(255,138,61,1), inset 0 1px 0 rgba(255,255,255,.45);
}
.btn-ghost{
  background: rgba(55,245,200,.05);
  border-color: var(--mt-30);
  color: var(--mint);
}
.btn-ghost:hover{
  transform: translateY(-2px);
  background: rgba(55,245,200,.11);
  border-color: var(--mt-55);
  box-shadow: 0 0 24px -8px rgba(55,245,200,.8);
}
.nav-cta{ padding: 11px 18px; font-size: .72rem; }

.tags, .chip-row{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag{
  padding: 5px 11px;
  font-size: .7rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink-dim);
  background: rgba(255,255,255,.025);
  border: 1px solid var(--edge);
  border-radius: 4px;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.tag:hover{ color: var(--copper); border-color: var(--cu-38); background: var(--cu-06); }

.kicker{
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 12px;
}
.section-title{
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.section-sub{
  color: var(--ink-dim);
  font-size: 1.02rem;
  max-width: 62ch;
}

.ref{
  font-size: .66rem;
  letter-spacing: .14em;
  color: var(--copper);
  opacity: .85;
}

.badge{
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  border-radius: 3px;
  border: 1px solid;
}
.badge-current{ color: var(--copper); border-color: var(--cu-38); background: var(--cu-06); }
.badge-live   { color: var(--mint);   border-color: var(--mt-30); background: var(--mt-08); }
.badge-dev    { color: var(--ink-dim); border-color: var(--edge); background: rgba(255,255,255,.02); }

/* =============================================================================
   SECTION RHYTHM — sections butt up against the trace connectors between them
   ============================================================================= */
.hero{ padding: calc(var(--nav-h) + 52px) 0 6px; }
.section{ padding: 6px 0; position: relative; }
.section-last{ padding-bottom: 76px; }

/* =============================================================================
   PLATE — a populated board module. Every section body sits on one.
   ============================================================================= */
.plate{
  --pa: var(--copper);
  --pa-12: rgba(255,138,61,.12);
  --pa-30: rgba(255,138,61,.30);
  --pa-55: rgba(255,138,61,.55);

  position: relative;
  padding: 52px 40px 46px;
  border: 1px solid var(--edge);
  border-radius: var(--r);
  background:
    linear-gradient(162deg, rgba(13,22,20,.94), rgba(6,11,10,.94)),
    repeating-linear-gradient(45deg, rgba(255,255,255,.012) 0 2px, transparent 2px 5px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.035), 0 30px 70px -46px #000;
}
.plate-accent{
  --pa: var(--mint);
  --pa-12: rgba(55,245,200,.12);
  --pa-30: rgba(55,245,200,.30);
  --pa-55: rgba(55,245,200,.55);
}

/* the power-up light sweep (runs once, on entering view) */
.plate::before{
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: linear-gradient(100deg, transparent 40%, var(--pa-30) 50%, transparent 60%);
  background-size: 260% 100%;
  background-position: 132% 0;
}
/* inner hairline, like the solder-mask keep-out ring */
.plate::after{
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: calc(var(--r) - 5px);
  pointer-events: none;
  border: 1px dashed rgba(146,182,170,.07);
}

.plate-ref{
  position: absolute;
  top: -9px;
  left: 26px;
  padding: 1px 11px;
  font-size: .63rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--pa);
  background: var(--substrate);
  border: 1px solid var(--edge);
  border-radius: 3px;
}

/* pin legs down both long edges of the module */
.plate-pins{
  position: absolute;
  top: 60px; bottom: 60px;
  width: 7px;
  pointer-events: none;
  background: repeating-linear-gradient(180deg,
              var(--cu-60) 0 9px, transparent 9px 25px);
  opacity: .5;
}
.plate-pins-l{ left: -7px;  border-radius: 2px 0 0 2px; }
.plate-pins-r{ right: -7px; border-radius: 0 2px 2px 0; }

.plate-head{ margin-bottom: 38px; }
.plate-head-center{ text-align: center; }
.plate-head-center .section-sub{ margin-inline: auto; }

/* ------------- signature power-up: flicker, then hold steady -------------- */
[data-node].is-powered .plate{
  animation: plate-power 1.25s steps(1, end) forwards;
}
[data-node].is-powered .plate::before{
  animation: plate-sweep 1.4s var(--ease) .05s 1 forwards;
}
[data-node].is-powered .plate-pins{
  animation: pins-heat 1.3s var(--ease) forwards;
}

@keyframes plate-power{
  0%   { border-color: var(--edge);   box-shadow: inset 0 1px 0 rgba(255,255,255,.035), 0 30px 70px -46px #000; }
  10%  { border-color: var(--pa-55);  box-shadow: inset 0 1px 0 rgba(255,255,255,.05), 0 0 30px -12px var(--pa-55), 0 30px 70px -46px #000; }
  16%  { border-color: var(--edge);   box-shadow: inset 0 1px 0 rgba(255,255,255,.035), 0 30px 70px -46px #000; }
  26%  { border-color: var(--pa-55);  box-shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 0 44px -10px var(--pa-55), 0 30px 70px -46px #000; }
  32%  { border-color: var(--edge);   box-shadow: inset 0 1px 0 rgba(255,255,255,.035), 0 30px 70px -46px #000; }
  38%  { border-color: var(--pa-55);  box-shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 0 44px -10px var(--pa-55), 0 30px 70px -46px #000; }
  44%  { border-color: var(--pa-12);  box-shadow: inset 0 1px 0 rgba(255,255,255,.04), 0 0 16px -10px var(--pa-55), 0 30px 70px -46px #000; }
  100% { border-color: var(--pa-30);  box-shadow: inset 0 1px 0 rgba(255,255,255,.05), 0 0 34px -18px var(--pa-55), 0 30px 70px -46px #000; }
}
@keyframes plate-sweep{
  0%   { opacity: 0;  background-position: 132% 0; }
  12%  { opacity: 1; }
  85%  { opacity: .5; }
  100% { opacity: 0;  background-position: -32% 0; }
}
@keyframes pins-heat{
  0%   { opacity: .18; filter: none; }
  40%  { opacity: 1;   filter: drop-shadow(0 0 7px rgba(255,138,61,.9)); }
  100% { opacity: .62; filter: drop-shadow(0 0 4px rgba(255,138,61,.45)); }
}

/* =============================================================================
   SCROLL REVEAL
   Hidden start-states are scoped to .js (script.js stamps it on <html> first
   thing), so if the script never runs the page is still fully readable.
   ============================================================================= */
.js [data-reveal]{
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .62s var(--ease), transform .62s var(--ease);
  will-change: opacity, transform;
}
.js [data-reveal].is-visible{
  opacity: 1;
  transform: none;
  will-change: auto;
}

/* =============================================================================
   HERO
   ============================================================================= */
.hero-grid{
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 54px;
  align-items: center;
}

.pwr-strip{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  font-size: .68rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--mint);
  background: var(--mt-08);
  border: 1px solid var(--mt-30);
  border-radius: 40px;
  margin-bottom: 26px;
}
.pwr-led{
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 10px var(--mint);
  animation: led-blink 2.4s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes led-blink{
  0%, 62%, 100%{ opacity: 1;  box-shadow: 0 0 10px var(--mint); }
  70%, 78%     { opacity: .28; box-shadow: 0 0 3px var(--mint); }
}

.hero-title{
  font-size: clamp(2.1rem, 5.6vw, 4rem);
  font-weight: 800;
  letter-spacing: -.035em;
  margin-bottom: 22px;
}
.hero-title .lit{
  background: linear-gradient(96deg, var(--copper-hi) 0%, var(--copper) 42%, var(--mint) 100%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 22px rgba(255,138,61,.34));
}

.hero-sub{
  color: var(--ink-dim);
  font-size: 1.06rem;
  max-width: 58ch;
  margin-bottom: 26px;
}

.chip-row{ margin-bottom: 30px; }

.cta-row{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.readouts{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px dashed var(--edge);
}
.readout dt{
  font-size: .62rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 5px;
}
.readout dd{
  font-family: var(--font-head);
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--ink);
}
.readout dd .mono{
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 400;
  color: var(--copper);
}

/* ------------------------------------------------- hero board schematic --- */
.hero-board{ position: relative; }
.hero-svg{
  width: 100%;
  height: auto;
  overflow: hidden; /* the decorative hatch runs past the viewBox on purpose */
}

.hb-hatch path{
  fill: none;
  stroke: rgba(146,182,170,.14);
  stroke-width: 1;
}

.hb-trace path{
  fill: none;
  stroke: var(--cu-38);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
/* JS stamps pathLength="100" on these so the draw-in reads evenly on every run */
.hb-trace path[pathLength]{
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: trace-draw 1.5s var(--ease) .25s forwards;
}

.hb-pulse path{
  fill: none;
  stroke: var(--copper-hi);
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 9 91;
  stroke-dashoffset: 100;
  filter: drop-shadow(0 0 5px rgba(255,138,61,.9));
  animation: trace-run 3.4s linear infinite;
}

.hb-via circle{
  fill: var(--substrate);
  stroke: var(--cu-60);
  stroke-width: 2;
}

.hb-part rect{
  fill: #0F1412;
  stroke: var(--cu-38);
  stroke-width: 1.4;
}
.hb-band rect{
  fill: var(--copper);
  stroke: none;
  opacity: .85;
}
.hb-fin{
  fill: none;
  stroke: rgba(146,182,170,.32);
  stroke-width: 1.2;
}

.hb-label{
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  fill: var(--ink-faint);
  text-anchor: middle;
}

.hb-led-halo{
  fill: var(--mint);
  opacity: .16;
  transform-box: fill-box;
  transform-origin: center;
  animation: led-halo 2.2s ease-in-out infinite;
}
.hb-led-core{
  fill: var(--mint-hi);
  filter: drop-shadow(0 0 8px rgba(55,245,200,.95));
  animation: led-blink 2.4s ease-in-out infinite;
}
@keyframes led-halo{
  0%, 100%{ opacity: .12; transform: scale(1); }
  50%     { opacity: .3;  transform: scale(1.12); }
}

.hb-pin rect{
  fill: var(--copper);
  opacity: .78;
}
.hb-ic-body{
  fill: #0C110F;
  stroke: var(--cu-60);
  stroke-width: 1.6;
  filter: drop-shadow(0 0 26px rgba(255,138,61,.22));
}
.hb-ic-dot{ fill: var(--copper); opacity: .7; }
.hb-ic-name{
  font-family: 'Sora', sans-serif;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: .02em;
  fill: var(--ink);
  text-anchor: middle;
}
.hb-ic-part{
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  fill: var(--copper);
  text-anchor: middle;
}
.hb-ic-part.dim{ fill: var(--ink-faint); }

@keyframes trace-draw{ to{ stroke-dashoffset: 0; } }
@keyframes trace-run { from{ stroke-dashoffset: 100; } to{ stroke-dashoffset: 0; } }

/* =============================================================================
   TRACE CONNECTORS between sections — the page's routing
   ============================================================================= */
.trace-link{
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
  pointer-events: none;
}
.trace-link svg{
  width: 100%;
  height: auto;
}

.tl-base path{
  fill: none;
  stroke: rgba(255,138,61,.18);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.tl-base path[pathLength]{
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
}
[data-trace].is-live .tl-base path[pathLength]{
  animation: trace-draw .85s var(--ease) forwards;
}

.tl-via circle{
  fill: var(--substrate);
  stroke: var(--cu-38);
  stroke-width: 2;
  transform-box: fill-box;
  transform-origin: center;
}
.js .tl-via circle{ opacity: 0; transform: scale(.4); }
[data-trace].is-live .tl-via circle{
  animation: via-pop .5s var(--ease) forwards;
}
[data-trace].is-live .tl-via circle:nth-child(1){ animation-delay: .30s; }
[data-trace].is-live .tl-via circle:nth-child(2){ animation-delay: .42s; }
[data-trace].is-live .tl-via circle:nth-child(3){ animation-delay: .50s; }
[data-trace].is-live .tl-via circle:nth-child(4){ animation-delay: .60s; }
[data-trace].is-live .tl-via circle:nth-child(5){ animation-delay: .70s; }
@keyframes via-pop{
  0%  { opacity: 0; transform: scale(.4); }
  60% { opacity: 1; transform: scale(1.35); stroke: var(--copper-hi); }
  100%{ opacity: 1; transform: scale(1); }
}

.tl-pulse path{
  fill: none;
  stroke: var(--copper-hi);
  stroke-width: 2.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 8 92;
  stroke-dashoffset: 100;
  filter: drop-shadow(0 0 6px rgba(255,138,61,.95));
  transition: opacity .4s var(--ease);
  animation: trace-run 2.4s linear infinite;
}
.js .tl-pulse path{ opacity: 0; animation: none; }
.js [data-trace].is-live .tl-pulse path{
  opacity: 1;
  animation: trace-run 2.4s linear infinite;
}

/* =============================================================================
   SERVICES — IC packages seated on the board
   ============================================================================= */
.ic-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px 22px;
}
.ic-wide{ grid-column: span 3; }

.ic{
  position: relative;
  padding: 22px 20px 20px;
  background: linear-gradient(180deg, #14120F 0%, #0A0D0C 100%);
  border: 1px solid var(--edge);
  border-radius: 9px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05), 0 12px 30px -22px #000;
  transition: transform .3s var(--ease), border-color .3s var(--ease),
              box-shadow .3s var(--ease), background .3s var(--ease);
  outline-offset: 4px;
}
.ic::after{
  /* die notch, top-left, like a real package */
  content: "";
  position: absolute;
  top: 9px; left: 9px;
  width: 9px; height: 9px;
  border-radius: 50%;
  border: 1px solid var(--cu-38);
  opacity: .55;
  transition: opacity .3s var(--ease), box-shadow .3s var(--ease);
}

.ic-pins{
  position: absolute;
  left: 15%; right: 15%;
  height: 7px;
  background: repeating-linear-gradient(90deg, var(--cu-60) 0 7px, transparent 7px 17px);
  opacity: .42;
  transition: opacity .3s var(--ease), filter .3s var(--ease);
  pointer-events: none;
}
.ic-pins-t{ top: -7px;    border-radius: 2px 2px 0 0; }
.ic-pins-b{ bottom: -7px; border-radius: 0 0 2px 2px; }

.ic-top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  padding-left: 22px;
}
.ic-ref{
  font-size: .64rem;
  letter-spacing: .16em;
  color: var(--ink-faint);
  transition: color .3s var(--ease);
}
.ic-led{
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(146,182,170,.25);
  flex-shrink: 0;
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}

.ic h3{
  font-size: 1.06rem;
  margin-bottom: 9px;
  letter-spacing: -.01em;
}
.ic p{
  font-size: .91rem;
  color: var(--ink-dim);
  margin-bottom: 14px;
}
.ic-part{
  display: inline-block;
  font-size: .62rem;
  letter-spacing: .15em;
  color: var(--copper);
  opacity: .72;
  padding-top: 10px;
  border-top: 1px dashed var(--edge-soft);
  width: 100%;
  transition: opacity .3s var(--ease);
}

.ic:hover,
.ic:focus-visible,
.ic.is-hot{
  transform: translateY(-4px);
  border-color: var(--cu-38);
  background: linear-gradient(180deg, #1B160F 0%, #0B0F0D 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.07),
              0 0 40px -14px rgba(255,138,61,.85),
              0 20px 40px -28px #000;
}
.ic:hover .ic-pins,
.ic:focus-visible .ic-pins,
.ic.is-hot .ic-pins{ opacity: 1; filter: drop-shadow(0 0 6px rgba(255,138,61,.85)); }

.ic:hover .ic-led,
.ic:focus-visible .ic-led,
.ic.is-hot .ic-led{
  background: var(--mint);
  box-shadow: 0 0 10px var(--mint);
}
.ic:hover .ic-ref,
.ic:focus-visible .ic-ref,
.ic.is-hot .ic-ref{ color: var(--copper); }
.ic:hover .ic-part,
.ic:focus-visible .ic-part,
.ic.is-hot .ic-part{ opacity: 1; }
.ic:hover::after,
.ic:focus-visible::after,
.ic.is-hot::after{ opacity: 1; box-shadow: 0 0 10px rgba(255,138,61,.7); }

/* the wide U2.7 package reads as a longer DIP */
.ic-wide{ display: grid; grid-template-columns: 1fr; }

/* =============================================================================
   PRODUCT — Gurujan Chat Bot
   ============================================================================= */
.product-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 46px;
  align-items: center;
}

.feature-list{
  margin: 26px 0 24px;
  display: grid;
  gap: 16px;
}
.feature-list li{
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.feature-node{
  position: relative;
  flex-shrink: 0;
  width: 13px; height: 13px;
  margin-top: 6px;
  border-radius: 50%;
  border: 2px solid var(--mint);
  background: var(--substrate);
  box-shadow: 0 0 10px rgba(55,245,200,.55);
}
.feature-node::after{
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  width: 10px;
  height: 1px;
  background: var(--mt-30);
}
.feature-list strong{
  display: block;
  font-family: var(--font-head);
  font-size: .98rem;
  margin-bottom: 3px;
}
.feature-list p{
  font-size: .9rem;
  color: var(--ink-dim);
}

.product-visual{ display: grid; gap: 16px; }

.bus{ position: relative; }
.bus-label{
  display: block;
  font-size: .6rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 6px;
}
.bus-svg{
  width: 100%;
  height: 44px;
}
.bus-base path{
  fill: none;
  stroke: var(--mt-16);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}
.bus-flow path{
  fill: none;
  stroke: var(--mint-hi);
  stroke-width: 2.6;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 12 88;
  stroke-dashoffset: 100;
  filter: drop-shadow(0 0 5px rgba(55,245,200,.9));
  animation: trace-run 2.8s linear infinite;
}

.module{
  border: 1px solid var(--mt-30);
  border-radius: 11px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 0 42px -22px rgba(55,245,200,.8), 0 24px 50px -34px #000;
}
.module-bar{
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  font-size: .64rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  background: rgba(55,245,200,.06);
  border-bottom: 1px solid var(--mt-16);
}
.module-dot{
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 9px var(--mint);
  animation: led-blink 2.6s ease-in-out infinite;
  flex-shrink: 0;
}
.module-state{
  margin-left: auto;
  color: var(--mint);
  letter-spacing: .16em;
}
.module .main-shot{
  width: 100%;
  cursor: zoom-in;
  transition: opacity .25s var(--ease);
}
.module .main-shot:hover{ opacity: .9; }

.thumb-row{
  display: flex;
  gap: 8px;
  padding: 10px;
  flex-wrap: wrap;
  border-top: 1px solid var(--edge-soft);
}
.thumb-row img{
  width: 78px;
  height: 50px;
  object-fit: cover;
  border-radius: 5px;
  border: 1px solid var(--edge);
  cursor: zoom-in;
  opacity: .68;
  transition: opacity .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.thumb-row img:hover{
  opacity: 1;
  transform: translateY(-2px);
  border-color: var(--cu-38);
}

/* =============================================================================
   WORK — sectors
   ============================================================================= */
.sectors{ display: grid; gap: 44px; }

.sector{
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 34px;
  align-items: center;
  padding-bottom: 44px;
  border-bottom: 1px dashed var(--edge-soft);
}
.sector:last-child{ padding-bottom: 0; border-bottom: none; }
.sector:nth-child(even) .sector-visual{ order: 2; }

.frame{
  position: relative;
  padding: 12px;
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 11px;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.frame:hover{
  border-color: var(--cu-38);
  box-shadow: 0 0 44px -20px rgba(255,138,61,.75);
}
.frame .main-shot{
  width: 100%;
  border-radius: 6px;
  cursor: zoom-in;
  border: 1px solid var(--edge-soft);
}
.frame .thumb-row{
  padding: 10px 0 0;
  border-top: none;
}

/* solder pads at each corner of the frame */
.frame-pad{
  position: absolute;
  width: 13px; height: 13px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 40%, var(--copper-hi), var(--copper-deep));
  box-shadow: 0 0 10px rgba(255,138,61,.55);
  opacity: .8;
}
.frame-pad::after{
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--substrate);
}
.frame-pad.tl{ top: -6px;    left: -6px; }
.frame-pad.tr{ top: -6px;    right: -6px; }
.frame-pad.bl{ bottom: -6px; left: -6px; }
.frame-pad.br{ bottom: -6px; right: -6px; }

.sector-top{
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.sector-text h3{
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  margin-bottom: 10px;
}
.sector-text > p{
  color: var(--ink-dim);
  font-size: .96rem;
  margin-bottom: 16px;
}

.spec-list{
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  font-size: .76rem;
  color: var(--ink-dim);
}
.spec-list li{
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}
.spec-list li::before{
  content: "";
  position: absolute;
  left: 0; top: .55em;
  width: 6px; height: 6px;
  border-radius: 1px;
  background: var(--copper);
  opacity: .7;
}
.spec-list li span{
  flex-shrink: 0;
  min-width: 92px;
  color: var(--ink-faint);
  letter-spacing: .1em;
  text-transform: uppercase;
  font-size: .64rem;
}

.wire-link{
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 14px;
  padding-bottom: 3px;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--mint);
  border-bottom: 1px solid var(--mt-30);
  transition: color .22s var(--ease), border-color .22s var(--ease), gap .22s var(--ease);
}
.wire-link:hover{
  color: var(--mint-hi);
  border-color: var(--mint);
  gap: 11px;
  text-shadow: 0 0 12px rgba(55,245,200,.7);
}

/* =============================================================================
   IN-HOUSE APPS
   ============================================================================= */
.app-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.app-card{
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, rgba(16,24,21,.9), rgba(7,12,11,.9));
  border: 1px solid var(--edge);
  border-radius: 11px;
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.app-card:hover{
  transform: translateY(-5px);
  border-color: var(--cu-38);
  box-shadow: 0 0 46px -20px rgba(255,138,61,.7), 0 24px 46px -32px #000;
}
.app-shot{
  background: #050807;
  border-bottom: 1px solid var(--edge-soft);
  overflow: hidden;
}
.app-shot img{
  width: 100%;
  height: 250px;
  object-fit: cover;
  object-position: top center;
  cursor: zoom-in;
  transition: transform .5s var(--ease);
}
.app-card:hover .app-shot img{ transform: scale(1.04); }

.app-body{ padding: 20px 20px 22px; }
.app-body h3{ font-size: 1.1rem; margin-bottom: 8px; }
.app-body > p{
  font-size: .9rem;
  color: var(--ink-dim);
  margin-bottom: 14px;
}

.pin-list{
  display: grid;
  gap: 8px;
  font-size: .74rem;
  color: var(--ink-dim);
  padding-top: 14px;
  border-top: 1px dashed var(--edge-soft);
}
.pin-list li{
  position: relative;
  padding-left: 18px;
  line-height: 1.5;
}
.pin-list li::before{
  content: "";
  position: absolute;
  left: 0; top: .5em;
  width: 10px; height: 3px;
  border-radius: 1px;
  background: var(--copper);
  opacity: .65;
}

/* =============================================================================
   PROCESS — signal chain
   ============================================================================= */
.chain{ position: relative; }

.chain-track{
  position: absolute;
  top: 22px;
  left: 6%; right: 6%;
  height: 2px;
  background: rgba(255,138,61,.14);
  border-radius: 2px;
  overflow: hidden;
}
.chain-current{
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--copper), var(--mint));
  box-shadow: 0 0 12px rgba(255,138,61,.8);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 1.8s var(--ease);
}
[data-chain].is-live .chain-current{ transform: scaleX(1); }

.chain-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  position: relative;
}
.step{ text-align: center; }
.step-via{
  display: inline-grid;
  place-items: center;
  width: 46px; height: 46px;
  border-radius: 50%;
  font-size: .82rem;
  font-weight: 700;
  color: var(--copper);
  background: var(--substrate);
  border: 2px solid var(--cu-38);
  margin-bottom: 18px;
  transition: color .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
[data-chain].is-live .step:nth-child(1) .step-via{ transition-delay: .15s; }
[data-chain].is-live .step:nth-child(2) .step-via{ transition-delay: .60s; }
[data-chain].is-live .step:nth-child(3) .step-via{ transition-delay: 1.05s; }
[data-chain].is-live .step:nth-child(4) .step-via{ transition-delay: 1.50s; }
[data-chain].is-live .step-via{
  color: #1B0A01;
  border-color: var(--copper-hi);
  background: linear-gradient(180deg, #FFA155, #E4741D);
  box-shadow: 0 0 22px -4px rgba(255,138,61,.9);
}
.step-body h3{
  font-size: 1.02rem;
  margin-bottom: 8px;
}
.step-body p{
  font-size: .88rem;
  color: var(--ink-dim);
}

/* =============================================================================
   ABOUT
   ============================================================================= */
.about-grid{
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 44px;
  align-items: center;
}
.frame-portrait .main-shot,
.frame-portrait img{
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--edge-soft);
}
.about-id{
  margin-top: 16px;
  text-align: center;
}
.about-id strong{
  display: block;
  font-family: var(--font-head);
  font-size: 1.02rem;
}
.about-id .mono{
  display: block;
  font-size: .68rem;
  letter-spacing: .07em;
  color: var(--ink-faint);
  margin-top: 4px;
}

/* the two unclassed body paragraphs only — must not swallow .kicker / .locale */
.about-copy > p:not([class]){
  color: var(--ink-dim);
  font-size: .98rem;
  margin-bottom: 16px;
}

.etch{
  position: relative;
  margin: 24px 0;
  padding: 20px 22px 20px 26px;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  background: linear-gradient(100deg, rgba(255,138,61,.07), transparent 70%);
  border-left: 2px solid var(--copper);
  border-radius: 0 8px 8px 0;
}
.etch-mark{
  position: absolute;
  left: -6px; top: 20px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--copper);
  box-shadow: 0 0 12px rgba(255,138,61,.9);
}
.locale{
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--mint);
}

/* =============================================================================
   CONTACT — pin-header ports
   ============================================================================= */
.port-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(266px, 1fr));
  gap: 18px;
}
.port{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 26px 20px 20px;
  background: linear-gradient(180deg, rgba(16,24,21,.85), rgba(7,12,11,.85));
  border: 1px solid var(--edge);
  border-radius: 9px;
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}
.port-header{
  position: absolute;
  top: 9px; left: 20px; right: 20px;
  height: 8px;
  background: repeating-linear-gradient(90deg,
              var(--mt-55) 0 4px, transparent 4px 13px);
  opacity: .38;
  transition: opacity .28s var(--ease), filter .28s var(--ease);
}
.port-ref{
  font-size: .62rem;
  letter-spacing: .17em;
  color: var(--ink-faint);
  margin-top: 6px;
  transition: color .28s var(--ease);
}
.port strong{
  font-family: var(--font-head);
  font-size: .96rem;
  font-weight: 600;
  word-break: break-word;
  color: var(--ink);
}
a.port:hover{
  transform: translateY(-4px);
  border-color: var(--mt-30);
  box-shadow: 0 0 40px -16px rgba(55,245,200,.8);
}
a.port:hover .port-header{ opacity: 1; filter: drop-shadow(0 0 6px rgba(55,245,200,.85)); }
a.port:hover .port-ref{ color: var(--mint); }
.port-static{ opacity: .82; }

/* =============================================================================
   FOOTER — the board's bottom edge
   ============================================================================= */
.site-footer{
  position: relative;
  z-index: 1;
  padding: 34px 0 40px;
  border-top: 1px solid var(--edge-soft);
  background: rgba(4,7,6,.7);
}
.footer-row{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.footer-brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: .92rem;
  letter-spacing: .06em;
}
.footer-brand img{ width: 26px; height: 26px; }
.footer-line{
  font-size: .7rem;
  color: var(--ink-faint);
  letter-spacing: .04em;
}
.footer-editions{
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  justify-content: flex-end;
}
.footer-editions a{
  font-size: .66rem;
  letter-spacing: .08em;
  color: var(--ink-faint);
  padding: 3px 8px;
  border: 1px solid transparent;
  border-radius: 4px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.footer-editions a:hover{ color: var(--copper); border-color: var(--cu-22); }

/* =============================================================================
   LIGHTBOX
   ============================================================================= */
.lightbox{
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(2,5,4,.93);
  -webkit-backdrop-filter: blur(8px);
          backdrop-filter: blur(8px);
}
.lightbox.open{ display: flex; }

.lightbox-content{
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: min(94vw, 980px);
  max-height: 92vh;
}
.lightbox img{
  max-width: min(94vw, 980px);
  max-height: 72vh;
  width: auto;
  border-radius: 10px;
  border: 1px solid var(--cu-22);
  box-shadow: 0 30px 90px -20px #000, 0 0 60px -30px rgba(255,138,61,.7);
}
.lightbox-info{
  margin-top: 16px;
  text-align: center;
  max-width: 760px;
}
.lightbox-info h4{
  font-size: 1.02rem;
  margin-bottom: 5px;
  color: var(--ink);
}
.lightbox-info p{
  font-size: .85rem;
  color: var(--ink-dim);
  margin-bottom: 8px;
}
.lightbox-counter{
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--copper);
}
.lightbox-close,
.lightbox-nav{
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--edge);
  color: var(--ink);
  z-index: 2;
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.lightbox-close:hover,
.lightbox-nav:hover{
  background: rgba(255,138,61,.16);
  border-color: var(--cu-38);
  color: var(--copper-hi);
}
.lightbox-close{ top: 20px; right: 20px; width: 44px; height: 44px; font-size: 1.15rem; }
.lightbox-nav{ top: 50%; transform: translateY(-50%); width: 46px; height: 46px; font-size: 1.8rem; line-height: 1; }
.lightbox-prev{ left: 14px; }
.lightbox-next{ right: 14px; }

/* =============================================================================
   RESPONSIVE
   ============================================================================= */
@media (max-width: 1080px){
  .main-nav{ display: none; }
  .nav-toggle{ display: flex; }
  .header-tools{ margin-left: auto; }
  .plate{ padding: 48px 30px 40px; }
  /* the connector SVGs scale with the viewport, so the routing has to thicken
     in user units to keep a constant apparent hairline weight */
  .tl-base path{ stroke-width: 3.2; }
  .tl-pulse path{ stroke-width: 4; }
  .tl-via circle{ stroke-width: 3; }
}

@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; gap: 40px; }
  .hero-board{ max-width: 560px; margin: 0 auto; width: 100%; }
  .product-grid{ grid-template-columns: 1fr; gap: 34px; }
  .about-grid{ grid-template-columns: 1fr; gap: 32px; }
  .about-visual{ max-width: 420px; margin: 0 auto; }
  .sector{ grid-template-columns: 1fr; gap: 24px; }
  .sector:nth-child(even) .sector-visual{ order: 0; }
  .ic-grid{ grid-template-columns: repeat(2, 1fr); }
  .ic-wide{ grid-column: span 2; }
  .app-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px){
  /* the signal chain rotates: track runs vertically down the left of the steps */
  .chain-track{
    top: 22px;
    bottom: 22px;
    height: auto;
    left: 22px;
    right: auto;
    width: 2px;
  }
  .chain-current{
    transform: scaleY(0);
    transform-origin: top center;
  }
  [data-chain].is-live .chain-current{ transform: scaleY(1); }
  .chain-grid{ grid-template-columns: 1fr; gap: 24px; }
  .step{
    display: grid;
    grid-template-columns: 46px 1fr;
    gap: 16px;
    text-align: left;
    align-items: start;
  }
  .step-via{ margin-bottom: 0; }
}

@media (max-width: 760px){
  :root{ --nav-h: 62px; }
  .nav-cta{ display: none; }
  .plate{ padding: 42px 20px 34px; border-radius: 11px; }
  .plate-ref{ left: 16px; font-size: .58rem; }
  .plate-pins{ display: none; }
  .plate-head{ margin-bottom: 28px; }
  .section-sub{ font-size: .95rem; }
  .app-grid,
  .ic-grid{ grid-template-columns: 1fr; }
  .ic-wide{ grid-column: span 1; }
  .readouts{ grid-template-columns: 1fr; gap: 12px; }
  .readout{ display: flex; align-items: baseline; gap: 10px; }
  .readout dt{ margin-bottom: 0; min-width: 120px; }
  .footer-row{ flex-direction: column; align-items: flex-start; }
  .footer-editions{ justify-content: flex-start; }
  /* keep the thin routing readable when the connector SVGs scale down */
  .tl-base path{ stroke-width: 5; }
  .tl-pulse path{ stroke-width: 6; }
  .tl-via circle{ stroke-width: 4; }
  .trace-link{ padding: 0 18px; }
  .wrap{ padding: 0 18px; }
  .cta-row .btn{ flex: 1 1 auto; }
  .lightbox{ padding: 14px; }
  .lightbox-close{ top: 12px; right: 12px; width: 38px; height: 38px; }
  .lightbox-nav{ width: 40px; height: 40px; }
  .lightbox-prev{ left: 6px; }
  .lightbox-next{ right: 6px; }
  .app-shot img{ height: 210px; }
}

@media (max-width: 460px){
  .hero{ padding-top: calc(var(--nav-h) + 34px); }
  .pwr-strip{ font-size: .6rem; letter-spacing: .09em; }
  .logo-text{ font-size: .86rem; }
  .thumb-row img{ width: 62px; height: 42px; }
}

/* larger tap targets where hover can't exist */
@media (hover: none){
  .frame:hover,
  .app-card:hover{ transform: none; }
}

/* =============================================================================
   REDUCED MOTION — keep every end-state, drop every transit
   ============================================================================= */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0s !important;
    transition-duration: .001ms !important;
    transition-delay: 0s !important;
  }
  .board-hot,
  .probe-glow,
  .hb-pulse,
  .tl-pulse,
  .bus-flow{ display: none; }

  .board-base{ opacity: .1; }
  .hb-trace path[pathLength]{ stroke-dashoffset: 0; }
  .tl-base path[pathLength]{ stroke-dashoffset: 0; }
  /* these must out-rank the .js-scoped hidden start-states above */
  .js .tl-via circle{ opacity: 1; transform: none; }
  .js [data-reveal]{ opacity: 1; transform: none; }
}

/* Print: flatten to plain readable document */
@media print{
  .board-layer, .probe-glow, .power-rail, .site-header,
  .mobile-menu, .trace-link, .lightbox{ display: none !important; }
  body{ background: #fff; color: #111; }
  .plate{ background: #fff; border-color: #ccc; box-shadow: none; }
}