/* ============================================================
   EZ Volt — design system  ("Circuit Noir")
   Ink + plaster surfaces, one electric accent, schematic motifs.
   ============================================================ */

:root {
  --ink: #0b0d12;
  --ink-2: #12151c;
  --ink-3: #1a1e28;
  --ink-4: #232835;
  --paper: #f6f5f1;
  --paper-2: #edebe5;
  --paper-3: #e3e0d8;
  --white-pure: #ffffff;
  --volt: #d8ff3d;
  --volt-deep: #b9e022;
  --volt-dim: rgba(216, 255, 61, 0.22);
  --white: #eef0f4;

  /* theme vars — defaults for light "paper" surfaces; .theme-white, .theme-ink, .theme-volt override */
  --bg: var(--paper);
  --bg-2: var(--white-pure);
  --bg-3: var(--paper-2);
  --fg: var(--ink);
  --muted: #5b616d;
  --faint: #6a7080;
  --line: rgba(11, 13, 18, 0.11);
  --line-strong: rgba(11, 13, 18, 0.3);
  --grid: rgba(11, 13, 18, 0.055);
  --accent: var(--ink);
  --accent-fg: var(--volt);

  --font-display: 'Bricolage Grotesque', 'Helvetica Neue', Arial, sans-serif;
  --font-serif: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --font-body: 'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --radius: 3px;
  --radius-lg: 8px;
  --container: 1240px;
  --gutter: clamp(16px, 4vw, 48px);
  --section: clamp(72px, 10vw, 136px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 76px;
}

.theme-white {
  --bg: var(--white-pure);
  --bg-2: var(--paper);
  --bg-3: var(--paper-2);
}
.theme-ink {
  --bg: var(--ink);
  --bg-2: var(--ink-2);
  --bg-3: var(--ink-3);
  --fg: var(--white);
  --muted: #9aa1ae;
  --faint: #5f6675;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.22);
  --grid: rgba(255, 255, 255, 0.045);
  --accent: var(--volt);
  --accent-fg: var(--ink);
}
.theme-volt {
  --bg: var(--volt);
  --bg-2: #cdf531;
  --bg-3: #c2ea2a;
  --fg: var(--ink);
  --muted: rgba(11, 13, 18, 0.7);
  --faint: rgba(11, 13, 18, 0.5);
  --line: rgba(11, 13, 18, 0.18);
  --line-strong: rgba(11, 13, 18, 0.4);
  --grid: rgba(11, 13, 18, 0.08);
  --accent: var(--ink);
  --accent-fg: var(--volt);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:hover { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 600; line-height: 1.05; letter-spacing: -0.02em; text-wrap: balance; }
h1 { font-size: clamp(40px, 6.2vw, 84px); font-weight: 700; letter-spacing: -0.035em; }
h2 { font-size: clamp(32px, 4.4vw, 56px); letter-spacing: -0.03em; }
h3 { font-size: clamp(22px, 2.2vw, 28px); }
h4 { font-size: 18px; letter-spacing: -0.01em; }
em.serif, .serif { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: 0; }
h1 .serif { font-size: 1.06em; }
strong { font-weight: 600; }
::selection { background: var(--volt); color: var(--ink); }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.theme-ink :focus-visible { outline-color: var(--volt); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* ---------- layout ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.container--wide { max-width: 1440px; }
.section { position: relative; background: var(--bg); color: var(--fg); padding: var(--section) 0; }
.section--tight { padding: clamp(48px, 6vw, 80px) 0; }
.section--flush-top { padding-top: 0; }
.section--grid::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), rgba(0,0,0,0.2) 60%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1), rgba(0,0,0,0.25) 60%, transparent);
}
.section > .container { position: relative; }
.hr { height: 1px; background: var(--line); border: 0; margin: 0; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.split--even { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.split--rev { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.sticky { position: sticky; top: calc(var(--header-h) + 24px); }
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split, .split--even, .split--rev { grid-template-columns: minmax(0, 1fr); }
  .sticky { position: static; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- type helpers ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-body); font-size: 12px; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 22px;
}
.eyebrow::before { content: ''; width: 28px; height: 1px; background: var(--accent); flex: none; }
.eyebrow--num::before { display: none; }
.eyebrow .num { font-variant-numeric: tabular-nums; color: var(--fg); }
.lead { font-size: clamp(18px, 1.5vw, 21px); line-height: 1.55; color: var(--muted); max-width: 62ch; text-wrap: pretty; }
.lead--fg { color: var(--fg); }
.measure { max-width: 66ch; text-wrap: pretty; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.label { font-size: 12px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.section-head { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 32px 64px; align-items: end; margin-bottom: clamp(40px, 5vw, 72px); }
.section-head > p, .section-head > .lead { margin: 0; }
.section-head__aside { display: flex; flex-direction: column; gap: 20px; align-items: flex-start; }
@media (max-width: 860px) { .section-head { grid-template-columns: minmax(0, 1fr); align-items: start; } }
.prose { max-width: 66ch; }
.prose p { margin-bottom: 1.25em; color: var(--fg); text-wrap: pretty; }
.prose p.muted { color: var(--muted); }
.prose h3 { margin: 2em 0 0.75em; }
.prose ul { padding-left: 1.2em; list-style: disc; margin-bottom: 1.25em; }
.prose li { margin-bottom: 0.4em; }

/* ---------- buttons ---------- */
.btn {
  --btn-bg: var(--accent); --btn-fg: var(--accent-fg);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 26px;
  background: var(--btn-bg); color: var(--btn-fg);
  font-family: var(--font-body); font-weight: 600; font-size: 15px; letter-spacing: 0.01em;
  border-radius: var(--radius); border: 1px solid transparent;
  transition: transform 0.35s var(--ease), background 0.25s, color 0.25s, border-color 0.25s;
  white-space: nowrap;
}
.btn:hover { color: var(--btn-fg); transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn svg { width: 18px; height: 18px; transition: transform 0.35s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn--volt { --btn-bg: var(--volt); --btn-fg: var(--ink); }
.btn--volt:hover { background: var(--volt-deep); }
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--fg); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--fg); }
.btn--ink { --btn-bg: var(--ink); --btn-fg: var(--white); }
.btn--ink:hover { background: var(--ink-3); }
.btn--sm { min-height: 42px; padding: 0 18px; font-size: 14px; }
.btn--lg { min-height: 60px; padding: 0 34px; font-size: 16px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px; color: var(--fg); border-bottom: 1px solid var(--line-strong); padding-bottom: 2px; transition: border-color 0.25s; }
.link-arrow svg { width: 16px; height: 16px; transition: transform 0.35s var(--ease); }
.link-arrow:hover { border-color: var(--fg); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(246, 245, 241, 0.78);
  backdrop-filter: saturate(140%) blur(14px); -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.site-header.is-scrolled { border-bottom-color: var(--line); background: rgba(246, 245, 241, 0.92); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: var(--header-h); }
.logo { display: inline-flex; align-items: center; gap: 11px; color: var(--fg); }
.logo__mark { width: 34px; height: 34px; flex: none; }
.logo__word { font-family: var(--font-display); font-weight: 700; font-size: 21px; letter-spacing: -0.02em; line-height: 1; }
.logo__word small { display: block; font-family: var(--font-body); font-weight: 500; font-size: 9.5px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav__link { position: relative; display: inline-flex; align-items: center; gap: 6px; padding: 10px 13px; font-size: 14.5px; font-weight: 500; color: #3d4350; border-radius: var(--radius); transition: color 0.2s, background 0.2s; }
.nav__link:hover, .nav__link[aria-current='page'] { color: var(--ink); background: rgba(11,13,18,0.06); }
.nav__link svg { width: 12px; height: 12px; opacity: 0.7; }
.nav__item { position: relative; }
.nav__item:hover .mega, .nav__item:focus-within .mega { opacity: 1; pointer-events: auto; transform: translateY(0); }
.mega {
  position: absolute; top: calc(100% + 6px); left: -12px; width: 680px;
  background: var(--white-pure); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 14px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px;
  opacity: 0; pointer-events: none; transform: translateY(6px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  box-shadow: 0 30px 60px -24px rgba(11,13,18,0.28);
}
.mega__item { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 12px; align-items: start; padding: 10px 12px; border-radius: var(--radius); transition: background 0.2s; }
.mega__item:hover { background: var(--paper); }
.mega__item svg { width: 24px; height: 24px; color: var(--ink); margin-top: 2px; }
.mega__item strong { display: block; font-size: 14.5px; font-weight: 600; }
.mega__item span { display: block; font-size: 13px; color: var(--muted); line-height: 1.4; }
.mega__all { grid-column: 1 / -1; padding: 12px 12px 6px; border-top: 1px solid var(--line); margin-top: 6px; }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-phone { display: inline-flex; align-items: center; gap: 8px; font-size: 14.5px; font-weight: 500; color: #3d4350; padding: 10px 12px; }
.header-phone svg { width: 16px; height: 16px; color: var(--ink); }
.header-phone:hover { color: var(--ink); }
.nav-toggle { display: none; width: 46px; height: 46px; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: var(--radius); }
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .x { display: none; }
@media (max-width: 1080px) {
  .nav, .header-phone { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-cta .btn { display: none; }
}
/* mobile drawer */
.drawer { position: fixed; inset: var(--header-h) 0 0 0; z-index: 55; background: var(--paper); overflow-y: auto; transform: translateX(100%); transition: transform 0.4s var(--ease); }
.drawer.is-open { transform: translateX(0); }
body.nav-open { overflow: hidden; }
body.nav-open .nav-toggle .bars { display: none; }
body.nav-open .nav-toggle .x { display: block; }
.drawer__inner { padding: 24px var(--gutter) 48px; display: flex; flex-direction: column; gap: 4px; }
.drawer__link { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; font-family: var(--font-display); font-size: 26px; font-weight: 600; letter-spacing: -0.02em; border-bottom: 1px solid var(--line); }
.drawer__sub { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px 16px; padding: 10px 0 18px; border-bottom: 1px solid var(--line); }
.drawer__sub a { font-size: 15px; color: var(--muted); padding: 8px 0; }
.drawer__cta { margin-top: 28px; display: flex; flex-direction: column; gap: 12px; }
.drawer__cta .btn { width: 100%; }
@media (max-width: 480px) { .drawer__sub { grid-template-columns: minmax(0, 1fr); } }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(56px, 8vw, 112px) 0 clamp(56px, 7vw, 96px); }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero__copy { max-width: 640px; }
.hero h1 { margin-bottom: 26px; }
.hero .lead { margin-bottom: 36px; }
.hero__meta { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 40px; font-size: 13.5px; color: var(--muted); }
.hero__meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero__meta svg { width: 15px; height: 15px; color: var(--ink); }
.hero__art { position: relative; }
.hero__screen { position: relative; background: var(--ink); border-radius: 14px; padding: clamp(14px, 2vw, 24px); border: 1px solid rgba(11,13,18,0.9); box-shadow: 0 40px 80px -40px rgba(11,13,18,0.45), 0 0 0 6px var(--paper-2); }
.hero__screen::before { content: ''; position: absolute; inset: 0; border-radius: inherit; background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 32px 32px; pointer-events: none; }
.hero__screen .schematic { position: relative; }
.hero__screen-bar { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: #9aa1ae; }
.hero__screen-bar b { color: var(--volt); font-weight: 600; }
.hero__screen-bar .dots { display: inline-flex; gap: 5px; }
.hero__screen-bar .dots i { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,0.18); }
.hero__screen-bar .dots i:first-child { background: var(--volt); }
.hero__glow { position: absolute; width: 60vw; height: 60vw; max-width: 900px; max-height: 900px; right: -20vw; top: -20vw; border-radius: 50%; background: radial-gradient(closest-side, rgba(216,255,61,0.32), transparent 70%); pointer-events: none; }
@media (max-width: 980px) { .hero__grid { grid-template-columns: minmax(0, 1fr); } .hero__art { max-width: 620px; } }

/* page hero (interior pages) */
.page-hero { position: relative; overflow: hidden; padding: clamp(48px, 7vw, 96px) 0 clamp(40px, 5vw, 72px); border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(36px, 5.2vw, 68px); margin-bottom: 22px; max-width: 18ch; }
.page-hero .lead { max-width: 60ch; }
.page-hero__grid { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: 40px; align-items: end; }
.page-hero__aside { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
@media (max-width: 860px) { .page-hero__grid { grid-template-columns: minmax(0, 1fr); } }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--muted); margin-bottom: 28px; }
.breadcrumbs a:hover { color: var(--fg); }
.breadcrumbs li + li::before { content: '/'; margin-right: 8px; color: var(--faint); }

/* ---------- schematic (hero animation) ---------- */
.schematic { width: 100%; height: auto; }
.schematic .wire { fill: none; stroke: rgba(255,255,255,0.22); stroke-width: 1.2; stroke-linecap: round; }
.schematic .wire--live { stroke: var(--volt); stroke-width: 1.4; stroke-dasharray: 1200; stroke-dashoffset: 1200; animation: draw 3.2s var(--ease) 0.4s forwards; }
.schematic .room { fill: rgba(255,255,255,0.025); stroke: rgba(255,255,255,0.18); stroke-width: 1; }
.schematic .node { fill: var(--ink); stroke: rgba(255,255,255,0.4); stroke-width: 1.2; }
.schematic .node--live { stroke: var(--volt); fill: var(--volt); animation: pulse 3s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
.schematic .ring { fill: none; stroke: var(--volt); stroke-width: 1; opacity: 0; animation: ring 3s ease-out infinite; transform-origin: center; transform-box: fill-box; }
.schematic .tag { font-family: var(--font-body); font-size: 9.5px; letter-spacing: 0.12em; text-transform: uppercase; fill: #9aa1ae; }
.schematic .tag--live { fill: var(--volt); }
.schematic .hub { fill: var(--ink-2); stroke: var(--volt); stroke-width: 1.4; }
.schematic .hub-glow { fill: rgba(216,255,61,0.12); }
.schematic .scene-label { font-family: var(--font-display); font-size: 12px; font-weight: 600; fill: var(--white); letter-spacing: 0.02em; }
.schematic .scene-sub { font-family: var(--font-body); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; fill: var(--volt); }
.schematic .d1 { animation-delay: 0.6s; } .schematic .d2 { animation-delay: 1.2s; } .schematic .d3 { animation-delay: 1.8s; }
.schematic .d4 { animation-delay: 2.4s; } .schematic .d5 { animation-delay: 3s; } .schematic .d6 { animation-delay: 3.6s; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pulse { 0%, 100% { opacity: 0.55; transform: scale(0.9); } 50% { opacity: 1; transform: scale(1.15); } }
@keyframes ring { 0% { opacity: 0.7; transform: scale(0.6); } 100% { opacity: 0; transform: scale(2.6); } }
@media (prefers-reduced-motion: reduce) {
  .schematic .wire--live { animation: none; stroke-dashoffset: 0; }
  .schematic .node--live, .schematic .ring { animation: none; opacity: 1; }
}

/* ---------- stats band ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats__item { padding: 28px 28px 28px 0; border-right: 1px solid var(--line); }
.stats__item:last-child { border-right: 0; }
.stats__item + .stats__item { padding-left: 28px; }
.stats__value { font-family: var(--font-display); font-size: clamp(34px, 3.4vw, 48px); font-weight: 700; letter-spacing: -0.03em; line-height: 1; color: var(--fg); margin-bottom: 10px; }
.stats__value b { color: var(--fg); font-weight: inherit; }
.theme-ink .stats__value b { color: var(--volt); }
.stats__label { font-size: 14px; color: var(--muted); line-height: 1.45; max-width: 24ch; }
@media (max-width: 860px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats__item { padding: 22px 20px 22px 0 !important; }
  .stats__item:nth-child(2n) { border-right: 0; padding-left: 20px !important; }
  .stats__item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

/* ---------- brand marquee ---------- */
.marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 22px 0; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__track { display: flex; width: max-content; gap: 0; animation: marquee 48s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item { display: inline-flex; align-items: baseline; gap: 12px; padding: 0 34px; font-family: var(--font-display); font-size: 22px; font-weight: 600; letter-spacing: -0.01em; color: var(--fg); white-space: nowrap; }
.marquee__item small { font-family: var(--font-body); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.marquee__item::after { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--volt-deep); margin-left: 34px; align-self: center; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; flex-wrap: wrap; width: auto; } }

/* ---------- cards ---------- */
.card {
  position: relative; display: flex; flex-direction: column; gap: 16px;
  padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: transparent;
  transition: border-color 0.3s, transform 0.4s var(--ease), background 0.3s;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.card--fill { background: var(--bg-2); }
.card__icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: var(--radius); color: var(--ink); background: var(--volt); }
.theme-ink .card__icon { background: transparent; border: 1px solid var(--line); color: var(--volt); }
.card__icon svg { width: 22px; height: 22px; }
.card__num { position: absolute; top: 26px; right: 28px; font-size: 12px; letter-spacing: 0.12em; color: var(--faint); font-variant-numeric: tabular-nums; }
.card h3 { font-size: 21px; letter-spacing: -0.015em; }
.card p { color: var(--muted); font-size: 15.5px; line-height: 1.55; text-wrap: pretty; }
.card .link-arrow { margin-top: auto; align-self: flex-start; font-size: 14px; }
.card--link { cursor: pointer; }
.card--link::after { content: ''; position: absolute; inset: 0; }
.card--link .link-arrow { position: relative; z-index: 1; }
.card--service { min-height: 250px; }
@media (max-width: 640px) { .card--service { min-height: 0; } }
.cards-tight { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.cards-tight .card { border: 0; border-radius: 0; background: var(--bg-2); }
.cards-tight .card:hover { transform: none; background: var(--bg); }
@media (max-width: 1100px) { .cards-tight { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .cards-tight { grid-template-columns: minmax(0, 1fr); } }

/* feature list (icon + text rows) */
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 32px; }
.feature { display: flex; flex-direction: column; gap: 12px; }
.feature__num { font-size: 12px; letter-spacing: 0.14em; color: var(--faint); font-variant-numeric: tabular-nums; }
.feature h3, .feature h4 { font-size: 19px; font-weight: 600; letter-spacing: -0.01em; }
.feature p { color: var(--muted); font-size: 15.5px; line-height: 1.55; text-wrap: pretty; }
.feature--rule { padding-top: 20px; border-top: 1px solid var(--line-strong); }
@media (max-width: 980px) { .features { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .features { grid-template-columns: minmax(0, 1fr); gap: 28px; } }

/* checklist */
.checklist { display: grid; gap: 14px; }
.checklist li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 14px; align-items: start; font-size: 16px; line-height: 1.5; }
.checklist svg { width: 22px; height: 22px; color: var(--accent); margin-top: 1px; }
.checklist--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 32px; }
@media (max-width: 700px) { .checklist--2 { grid-template-columns: minmax(0, 1fr); } }

/* chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 13px; font-weight: 500; color: var(--fg); transition: background 0.2s, border-color 0.2s; }
.chip:hover { border-color: var(--fg); }
.chip--solid { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.chip svg { width: 14px; height: 14px; }

/* aside panel */
.panel { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; background: var(--bg-2); display: flex; flex-direction: column; gap: 22px; }
.panel h4, .panel h3 { font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; font-family: var(--font-body); font-weight: 600; color: var(--muted); }
.panel ul { display: grid; gap: 10px; }
.panel li { font-size: 15px; display: flex; gap: 10px; align-items: start; }
.panel ul > li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex: none; margin-top: 9px; }
.panel--volt { background: var(--volt); color: var(--ink); border-color: transparent; }
.panel--volt h4, .panel--volt h3 { color: rgba(11,13,18,0.65); }
.panel--volt ul > li::before { background: var(--ink); }
.panel .btn { width: 100%; }

/* ---------- process steps ---------- */
.steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line-strong); }
.step { padding: 28px 28px 8px 0; position: relative; }
.step + .step { padding-left: 28px; border-left: 1px solid var(--line); }
.step__num { display: inline-block; font-family: var(--font-display); font-size: 13px; font-weight: 700; letter-spacing: 0.08em; color: var(--volt); background: var(--ink); padding: 4px 8px; border-radius: 2px; margin-bottom: 20px; }
.theme-ink .step__num { background: var(--white); color: var(--ink); }
.step h3 { font-size: 20px; margin-bottom: 10px; }
.step p { color: var(--muted); font-size: 15px; line-height: 1.55; }
.step__meta { margin-top: 14px; font-size: 12.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }
@media (max-width: 1100px) { .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); } .step:nth-child(4) { border-left: 0; padding-left: 0; } .step:nth-child(n+4) { border-top: 1px solid var(--line); } }
@media (max-width: 680px) { .steps { grid-template-columns: minmax(0, 1fr); } .step { border-left: 0 !important; padding-left: 0 !important; border-top: 1px solid var(--line); } .step:first-child { border-top: 0; } }

/* vertical timeline (process page) */
.timeline { display: grid; gap: 0; }
.tl-item { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 32px; padding: 40px 0; border-top: 1px solid var(--line); }
.tl-item:last-child { border-bottom: 1px solid var(--line); }
.tl-item__num { font-family: var(--font-display); font-size: 40px; font-weight: 700; letter-spacing: -0.03em; color: var(--faint); line-height: 1; font-variant-numeric: tabular-nums; }
.tl-item__body { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 32px 56px; }
.tl-item h3 { margin-bottom: 12px; }
.tl-item p { color: var(--muted); }
.tl-item__aside { display: flex; flex-direction: column; gap: 14px; }
.tl-item__aside h4 { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; font-family: var(--font-body); font-weight: 600; color: var(--muted); }
@media (max-width: 900px) { .tl-item__body { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 560px) { .tl-item { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 28px 0; } }

/* ---------- testimonials ---------- */
.quotes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.quote { display: flex; flex-direction: column; gap: 22px; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--bg-2); }
.quote__mark { width: 28px; height: 28px; color: var(--accent); }
.quote blockquote { margin: 0; font-family: var(--font-serif); font-size: 22px; line-height: 1.35; letter-spacing: -0.005em; text-wrap: pretty; }
.quote footer { margin-top: auto; display: grid; gap: 4px; font-size: 13.5px; color: var(--muted); }
.quote footer strong { color: var(--fg); font-weight: 600; }
@media (max-width: 980px) { .quotes { grid-template-columns: minmax(0, 1fr); } }

/* ---------- FAQ ---------- */
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: minmax(0, 1fr) 28px; gap: 24px; align-items: center; padding: 22px 0; font-family: var(--font-display); font-size: 20px; font-weight: 600; letter-spacing: -0.015em; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { width: 28px; height: 28px; border: 1px solid var(--line-strong); border-radius: 50%; display: grid; place-items: center; transition: transform 0.35s var(--ease), background 0.25s; }
.faq-item summary .plus svg { width: 12px; height: 12px; }
.faq-item[open] summary .plus { transform: rotate(45deg); background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.faq-item__body { padding: 0 60px 26px 0; color: var(--muted); max-width: 70ch; text-wrap: pretty; }
.faq-item__body p { margin: 0; }
.faq-cats { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; }
.faq-section { padding-top: 48px; }
.faq-section h2 { font-size: 28px; margin-bottom: 20px; }

/* ---------- areas ---------- */
.area-list { columns: 3; column-gap: 32px; }
.area-list li { break-inside: avoid; }
.area-list a { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 16px; font-weight: 500; transition: padding-left 0.3s var(--ease); }
.area-list a:hover { padding-left: 6px; }
.area-list a small { color: var(--muted); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
@media (max-width: 900px) { .area-list { columns: 2; } }
@media (max-width: 560px) { .area-list { columns: 1; } }
.county-group { margin-bottom: 40px; }
.county-group > h3 { font-size: 14px; letter-spacing: 0.14em; text-transform: uppercase; font-family: var(--font-body); font-weight: 600; color: var(--muted); margin-bottom: 8px; }

/* ---------- projects ---------- */
.project-card { position: relative; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--white-pure); transition: transform 0.4s var(--ease), border-color 0.3s; }
.project-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.project-card__art { aspect-ratio: 4 / 3; background: var(--ink); position: relative; overflow: hidden; }
.project-card__art svg { width: 100%; height: 100%; }
.project-card__body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 10px; }
.project-card__meta { display: flex; justify-content: space-between; gap: 12px; font-size: 12.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.project-card h3 { font-size: 21px; }
.project-card p { color: var(--muted); font-size: 15px; }
.project-card .chips { margin-top: 8px; }
.project-card .chip { font-size: 12px; padding: 5px 10px; }
.project-card > a.cover { position: absolute; inset: 0; z-index: 1; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 36px; }
.filter-bar .chip[aria-pressed='true'] { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.room-art { --ra: var(--volt); }
.room-art .r-wall { fill: none; stroke: rgba(255,255,255,0.28); stroke-width: 1.2; }
.room-art .r-fill { fill: rgba(255,255,255,0.03); }
.room-art .r-node { fill: var(--ra); }
.room-art .r-wire { fill: none; stroke: var(--ra); stroke-width: 1; opacity: 0.8; }
.room-art .r-tag { font-family: var(--font-body); font-size: 8.5px; letter-spacing: 0.12em; text-transform: uppercase; fill: #9aa1ae; }
.room-art .r-glow { fill: var(--ra); opacity: 0.1; }
.project-hero-art { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--ink); overflow: hidden; aspect-ratio: 16 / 9; }
.project-hero-art svg { width: 100%; height: 100%; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec-table th, .spec-table td { text-align: left; padding: 14px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec-table th { width: 34%; font-weight: 500; color: var(--muted); font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; padding-right: 16px; }

/* ---------- builder section / two-tone ---------- */
.two-tone { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.two-tone > div { padding: clamp(28px, 4vw, 56px); }
.two-tone > div:first-child { border-right: 1px solid var(--line); }
.two-tone h3 { margin-bottom: 14px; }
.two-tone .theme-volt { background: var(--volt); color: var(--ink); }
@media (max-width: 860px) { .two-tone { grid-template-columns: minmax(0, 1fr); } .two-tone > div:first-child { border-right: 0; border-bottom: 1px solid var(--line); } }
.num-list { counter-reset: n; display: grid; gap: 18px; }
.num-list li { counter-increment: n; display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 16px; align-items: start; }
.num-list li::before { content: counter(n, decimal-leading-zero); font-family: var(--font-display); font-weight: 700; font-size: 14px; letter-spacing: 0.06em; color: var(--muted); padding-top: 4px; }
.num-list strong { display: block; font-weight: 600; margin-bottom: 4px; }
.num-list span { color: var(--muted); font-size: 15px; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--volt); color: var(--ink); position: relative; overflow: hidden; }
.cta-band .container { position: relative; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 32px 64px; align-items: center; padding-top: clamp(56px, 7vw, 96px); padding-bottom: clamp(56px, 7vw, 96px); }
.cta-band h2 { font-size: clamp(36px, 5vw, 64px); }
.cta-band p { color: rgba(11,13,18,0.72); font-size: 18px; max-width: 46ch; margin-top: 16px; }
.cta-band__actions { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.cta-band__actions .btn--ink { min-height: 60px; padding: 0 34px; font-size: 16px; }
.cta-band__phone { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: 24px; font-weight: 600; letter-spacing: -0.01em; }
.cta-band__phone svg { width: 20px; height: 20px; }
.cta-band__lines { position: absolute; right: -60px; bottom: -60px; width: 480px; height: 480px; opacity: 0.18; pointer-events: none; }
@media (max-width: 860px) { .cta-band .container { grid-template-columns: minmax(0, 1fr); } }

/* ---------- footer ---------- */
.site-footer { --fg: var(--white); --muted: #9aa1ae; --faint: #7a818f; --line: rgba(255,255,255,0.1); --line-strong: rgba(255,255,255,0.22); background: var(--ink); color: var(--white); border-top: 1px solid var(--line); padding: clamp(56px, 6vw, 88px) 0 32px; }
.site-footer__top { display: grid; grid-template-columns: minmax(0, 3.6fr) repeat(4, minmax(0, 2.2fr)); gap: 32px; padding-bottom: 48px; border-bottom: 1px solid var(--line); }
.site-footer__brand p { color: var(--muted); font-size: 15px; max-width: 34ch; margin-top: 18px; }
.site-footer .logo { color: var(--white); }
.site-footer__brand .logo__word small { color: var(--muted); }
.site-footer h2 { font-family: var(--font-body); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-bottom: 18px; }
.site-footer ul { display: grid; gap: 10px; }
.site-footer li a { font-size: 15px; color: #c9cfd9; transition: color 0.2s; }
.site-footer li a:hover { color: var(--white); }
.site-footer address { font-style: normal; color: #c9cfd9; font-size: 15px; line-height: 1.7; }
.site-footer address a { display: block; }
.site-footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 32px; padding-top: 24px; font-size: 13px; color: var(--faint); }
.site-footer__bottom a { color: var(--muted); }
.site-footer__bottom a:hover { color: var(--white); }
.site-footer__bottom nav { display: flex; flex-wrap: wrap; gap: 20px; }
.parent-note { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; font-size: 13px; color: var(--muted); }
.parent-note svg { width: 14px; height: 14px; }
@media (max-width: 980px) { .site-footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .site-footer__top { grid-template-columns: minmax(0, 1fr); } }

/* ---------- forms ---------- */
.form { display: grid; gap: 20px; }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 640px) { .form__row { grid-template-columns: minmax(0, 1fr); } }
.field { display: grid; gap: 8px; }
.field label { font-size: 13px; font-weight: 600; letter-spacing: 0.04em; color: var(--fg); }
.field label span { color: var(--muted); font-weight: 400; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 16px; color: var(--fg);
  background: var(--white-pure); border: 1px solid var(--line-strong); border-radius: var(--radius);
  padding: 14px 16px; min-height: 52px; transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none; appearance: none;
}
.field textarea { min-height: 140px; resize: vertical; }
.field select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235b616d' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 44px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 0; border-color: var(--fg); box-shadow: 0 0 0 3px var(--volt-dim); }
.field input::placeholder, .field textarea::placeholder { color: var(--faint); }
.field.is-invalid input, .field.is-invalid textarea, .field.is-invalid select { border-color: #c8412b; }
.field__error { font-size: 13px; color: #c8412b; display: none; }
.field.is-invalid .field__error { display: block; }
.fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: 12px; }
.fieldset legend { font-size: 13px; font-weight: 600; letter-spacing: 0.04em; margin-bottom: 4px; padding: 0; }
.fieldset legend span { color: var(--muted); font-weight: 400; }
.check-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
@media (max-width: 760px) { .check-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 440px) { .check-grid { grid-template-columns: minmax(0, 1fr); } }
.check { position: relative; }
.check input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.check span { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: var(--radius); font-size: 14.5px; font-weight: 500; min-height: 48px; transition: background 0.2s, border-color 0.2s, color 0.2s; }
.check span svg { width: 18px; height: 18px; color: var(--muted); flex: none; }
.check input:checked + span { background: var(--ink); color: var(--white); border-color: var(--ink); }
.check input:checked + span svg { color: var(--volt); }
.check input:focus-visible + span { box-shadow: 0 0 0 3px var(--volt-dim); }
.form__foot { display: flex; flex-wrap: wrap; gap: 16px 24px; align-items: center; justify-content: space-between; }
.form__foot small { color: var(--muted); font-size: 13px; max-width: 42ch; }
.form__status { display: none; padding: 16px 18px; border-radius: var(--radius); font-size: 15px; }
.form__status.is-error { display: block; background: rgba(200,65,43,0.08); color: #a83320; border: 1px solid rgba(200,65,43,0.35); }
.form__success { display: none; padding: 40px; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: var(--white-pure); }
.form__success.is-visible { display: block; }
.form__success h3 { margin-bottom: 12px; }
.form__success svg { width: 44px; height: 44px; color: var(--ink); margin-bottom: 20px; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

/* contact sidebar */
.contact-side { display: grid; gap: 20px; }
.contact-line { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 14px; align-items: start; padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-line:first-child { border-top: 1px solid var(--line); }
.contact-line__icon { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: var(--radius); color: var(--fg); }
.contact-line__icon svg { width: 20px; height: 20px; }
.contact-line strong { display: block; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; font-weight: 600; }
.contact-line a, .contact-line span.v { font-size: 17px; font-weight: 500; }
.contact-line small { display: block; color: var(--muted); font-size: 13.5px; margin-top: 2px; }

/* ---------- misc ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-stagger > * { opacity: 0; transform: translateY(16px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal-stagger.is-visible > * { opacity: 1; transform: none; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.07s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.14s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.21s; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.28s; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.35s; }
.reveal-stagger.is-visible > *:nth-child(n+7) { transition-delay: 0.42s; }
@media (prefers-reduced-motion: reduce) { .reveal, .reveal-stagger > * { opacity: 1; transform: none; transition: none; } }
.js .reveal, .js .reveal-stagger > * { }
.no-js .reveal, .no-js .reveal-stagger > * { opacity: 1; transform: none; }

.pill-note { display: inline-flex; align-items: center; gap: 10px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 13.5px; color: var(--muted); }
.pill-note b { color: var(--fg); font-weight: 600; }
.pill-note .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ink); box-shadow: 0 0 0 4px rgba(11,13,18,0.1); }
.theme-ink .pill-note .dot { background: var(--volt); box-shadow: 0 0 0 4px var(--volt-dim); }

.big-list { border-top: 1px solid var(--line-strong); }
.big-list li { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--line); align-items: start; }
.big-list li .n { font-family: var(--font-display); font-weight: 700; font-size: 14px; letter-spacing: 0.06em; color: var(--muted); padding-top: 4px; }
.big-list h3 { font-size: 22px; margin-bottom: 6px; }
.big-list p { color: var(--muted); max-width: 60ch; }

.legal { max-width: 74ch; }
.legal h2 { font-size: 24px; margin: 2.2em 0 0.7em; }
.legal p { color: var(--muted); }
.legal .updated { font-size: 14px; color: var(--faint); margin-bottom: 40px; }

.notfound { min-height: 60vh; display: grid; place-items: center; text-align: center; }
.notfound h1 { font-size: clamp(64px, 14vw, 180px); line-height: 0.9; color: var(--ink); }
.notfound p { margin: 20px 0 32px; color: var(--muted); }

/* pill-note: text wraps as one unit */
.pill-note { align-items: flex-start; line-height: 1.4; }
.pill-note .dot { flex: none; margin-top: 6px; }

/* ============================================================
   v3 design pass: interactive plan, illustrations, stack, rack, rings, tiles
   ============================================================ */

/* ---------- interactive schematic states ---------- */
.schematic .room-group { cursor: pointer; outline: none; }
.schematic .room-group .room { transition: fill 0.35s, stroke 0.35s; }
.schematic .room-group:hover .room, .schematic .room-group:focus-visible .room { stroke: rgba(216,255,61,0.7); fill: rgba(216,255,61,0.06); }
.schematic .room-group:focus-visible .room { stroke-width: 2.5; stroke: var(--volt); }
.rings__area a:focus-visible .rings__dot { stroke-width: 3; fill: var(--volt); }
.table-wrap:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.schematic .room-group.is-on .room { fill: rgba(216,255,61,0.11); stroke: rgba(216,255,61,0.85); }
.schematic .room-group .node--room { fill: var(--ink); stroke: rgba(255,255,255,0.45); transition: fill 0.3s, stroke 0.3s; }
.schematic .room-group.is-on .node--room { fill: var(--volt); stroke: var(--volt); animation: pulse 3s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
.schematic .room-group .ring { display: none; }
.schematic .room-group.is-on .ring { display: block; }
.schematic .tag--status { fill: #6b7280; transition: fill 0.3s; }
.schematic .room-group.is-on .tag--status { fill: var(--volt); }
.schematic .room-group .wire--live { opacity: 0; animation: none; stroke-dashoffset: 1200; transition: stroke-dashoffset 1.3s var(--ease), opacity 0.25s; }
.schematic .room-group.is-on .wire--live { opacity: 1; stroke-dashoffset: 0; }
.schematic .room--rack { fill: rgba(216,255,61,0.05); stroke: rgba(216,255,61,0.35); }
.schematic .room-group .tag { fill: #9aa1ae; }
.schematic .room-group.is-on .tag { fill: #eef0f4; }
@media (prefers-reduced-motion: reduce) { .schematic .room-group .wire--live { transition: none; } }

.scene-bar { position: relative; display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.scene-btn { flex: 1 1 auto; min-height: 38px; padding: 0 12px; border: 1px solid rgba(255,255,255,0.14); border-radius: 999px; background: rgba(255,255,255,0.04); color: #c9cfd9; font-size: 13px; font-weight: 600; transition: background 0.25s, color 0.25s, border-color 0.25s; }
.scene-btn:hover { border-color: rgba(255,255,255,0.4); color: #fff; }
.scene-btn[aria-pressed='true'] { background: var(--volt); color: var(--ink); border-color: var(--volt); }
.hero__hint { display: flex; align-items: center; gap: 10px; margin-top: 14px; font-size: 13px; color: var(--muted); }
.hero__hint svg { width: 16px; height: 16px; }

/* ---------- illustrations ---------- */
.illus { width: 100%; height: auto; display: block; }
.illus .i-panel { fill: var(--white-pure); stroke: var(--ink); stroke-width: 1.4; }
.illus .i-screen { fill: var(--paper); stroke: rgba(11,13,18,0.25); stroke-width: 1; }
.illus .i-port { fill: var(--paper-2); stroke: rgba(11,13,18,0.35); stroke-width: 0.8; }
.illus .i-port--live { fill: var(--volt); stroke: var(--ink); }
.illus .i-cable { stroke: var(--ink); stroke-width: 1.6; fill: none; }
.illus .i-cable--live { stroke: var(--volt-deep); stroke-width: 2.2; }
.illus .i-cable--faint { stroke: rgba(11,13,18,0.3); stroke-dasharray: 3 4; }
.illus .i-node { fill: var(--white-pure); stroke: var(--ink); stroke-width: 1.4; }
.illus .i-node--live { fill: var(--volt); }
.illus .i-tag { font-family: var(--font-body); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; fill: var(--muted); }
.illus .i-tiny { font-family: var(--font-body); font-size: 8.5px; font-weight: 500; fill: var(--muted); }
.illus .i-tiny--ink { fill: var(--ink); }
.illus .i-disc { fill: var(--white-pure); stroke: var(--ink); stroke-width: 1.4; }
.illus .i-ring { fill: none; stroke: rgba(11,13,18,0.35); stroke-width: 1; }
.illus .i-arc { fill: none; stroke: var(--ink); stroke-width: 1.4; }
.illus .i-arc--faint { stroke: rgba(11,13,18,0.28); }
.illus .i-tile { fill: var(--white-pure); stroke: rgba(11,13,18,0.3); stroke-width: 1; }
.illus .i-tile--live { fill: var(--volt); stroke: var(--ink); }
.illus .i-key { fill: var(--paper); stroke: rgba(11,13,18,0.3); stroke-width: 1; }
.illus .i-key--live { fill: var(--volt); stroke: var(--ink); }
.illus .i-led { fill: rgba(11,13,18,0.25); }
.illus .i-led--on { fill: var(--volt-deep); }
.illus .i-line { stroke: rgba(11,13,18,0.35); stroke-width: 1; fill: none; }
.illus .i-line--volt { stroke: var(--ink); stroke-width: 1.6; }
.illus .i-sun { fill: var(--volt); stroke: var(--ink); stroke-width: 1.2; }
.illus .i-bar { fill: var(--ink); }
.illus .i-shield { fill: var(--volt); stroke: var(--ink); stroke-width: 1.4; }
.theme-ink .illus .i-panel, .theme-ink .illus .i-disc, .theme-ink .illus .i-node { fill: var(--ink-2); stroke: rgba(255,255,255,0.6); }
.theme-ink .illus .i-cable, .theme-ink .illus .i-arc, .theme-ink .illus .i-bar { stroke: rgba(255,255,255,0.7); }

/* ---------- feature tiles (lead systems) ---------- */
.tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.tile { position: relative; display: flex; flex-direction: column; background: var(--white-pure); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform 0.4s var(--ease), border-color 0.3s, box-shadow 0.4s var(--ease); }
.tile:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 30px 50px -36px rgba(11,13,18,0.35); }
.tile__art { background: var(--paper); border-bottom: 1px solid var(--line); padding: 18px 18px 8px; }
.tile__art .illus { transition: transform 0.5s var(--ease); }
.tile:hover .tile__art .illus { transform: translateY(-3px); }
.tile__body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.tile__num { font-size: 12px; letter-spacing: 0.14em; color: var(--faint); font-variant-numeric: tabular-nums; }
.tile h3 { font-size: 21px; letter-spacing: -0.015em; }
.tile p { color: var(--muted); font-size: 15px; line-height: 1.55; text-wrap: pretty; }
.tile .link-arrow { margin-top: auto; align-self: flex-start; font-size: 14px; position: relative; z-index: 1; }
.tile > a.cover { position: absolute; inset: 0; z-index: 0; }
@media (max-width: 1100px) { .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .tiles { grid-template-columns: minmax(0, 1fr); } }
.tiles--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 1100px) { .tiles--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .tiles--3 { grid-template-columns: minmax(0, 1fr); } }
.more-services { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin-top: 16px; }
.more-services a { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--white-pure); font-weight: 600; font-size: 14.5px; transition: border-color 0.25s, transform 0.35s var(--ease); }
.more-services a:hover { border-color: var(--ink); transform: translateY(-2px); }
.more-services svg { width: 20px; height: 20px; flex: none; color: var(--ink); }
@media (max-width: 1100px) { .more-services { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 640px) { .more-services { grid-template-columns: minmax(0, 1fr); } }

/* ---------- system stack ---------- */
.stack { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: clamp(24px, 5vw, 72px); align-items: center; }
.stack__svg { width: 100%; height: auto; overflow: visible; }
.stack__plate { transition: transform 0.5s var(--ease), opacity 0.4s; cursor: pointer; }
.stack__face { fill: var(--white-pure); stroke: var(--ink); stroke-width: 1.2; stroke-linejoin: round; transition: fill 0.3s; }
.stack__face--pattern { fill: url(#stk-wire); stroke: none; }
.stack__side { fill: var(--paper-3); stroke: var(--ink); stroke-width: 1; stroke-linejoin: round; }
.stack__side--l { fill: var(--paper-2); }
.stack__detail--live { stroke: var(--volt-deep); stroke-width: 2.2; }
.stack__detail { stroke: var(--ink); stroke-width: 1.4; fill: none; stroke-linecap: round; }
.stack__arc { fill: none; stroke: rgba(11,13,18,0.35); stroke-width: 1; }
.stack__dot { fill: var(--ink); }
.stack__chip { fill: var(--ink); }
.stack__key { fill: var(--paper); stroke: var(--ink); stroke-width: 1; }
.stack__bubble { fill: var(--volt); stroke: var(--ink); stroke-width: 1; }
.stack__riser { stroke: rgba(11,13,18,0.35); stroke-width: 1; stroke-dasharray: 3 5; fill: none; }
.stack.has-hover .stack__plate:not(.is-active) { opacity: 0.45; }
.stack__plate.is-active { transform: translateX(-10px); }
.stack__plate.is-active .stack__face:not(.stack__face--pattern) { fill: var(--volt); }
.stack__legend { display: grid; gap: 4px; counter-reset: none; }
.stack__item { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 14px; padding: 18px 16px; border-radius: var(--radius-lg); border: 1px solid transparent; transition: background 0.25s, border-color 0.25s; cursor: pointer; }
.stack__item:hover, .stack__item.is-active { background: var(--white-pure); border-color: var(--line); }
.stack__n { font-family: var(--font-display); font-weight: 700; font-size: 13px; letter-spacing: 0.08em; color: var(--muted); padding-top: 4px; }
.stack__item.is-active .stack__n { color: var(--ink); }
.stack__item h3 { font-size: 19px; margin-bottom: 4px; }
.stack__item h3 a:hover { text-decoration: underline; text-underline-offset: 3px; }
.stack__item p { color: var(--muted); font-size: 15px; line-height: 1.5; }
@media (max-width: 900px) { .stack { grid-template-columns: minmax(0, 1fr); } .stack__svg { max-width: 520px; margin: 0 auto; } }

/* ---------- rack ---------- */
.rack { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: 32px; align-items: end; background: var(--white-pure); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(20px, 3vw, 36px); }
.rack__svg { width: 100%; height: auto; }
.rack__frame { fill: var(--paper); stroke: var(--ink); stroke-width: 1.4; }
.rack__hole { fill: rgba(11,13,18,0.3); }
.rack__box { fill: var(--ink-2); stroke: var(--ink); stroke-width: 1; transition: fill 0.3s; }
.rack__box--ai { fill: var(--ink); }
.rack__unit:hover .rack__box { fill: var(--ink-4); }
.rack__port { fill: rgba(255,255,255,0.1); stroke: rgba(255,255,255,0.3); stroke-width: 0.6; }
.rack__port--on { fill: var(--volt); stroke: var(--volt); }
.rack__screen { fill: rgba(255,255,255,0.08); stroke: rgba(255,255,255,0.3); stroke-width: 0.6; }
.rack__led { fill: rgba(255,255,255,0.2); }
.rack__led--on { fill: var(--volt); }
.rack__core { fill: none; stroke: var(--volt); stroke-width: 1; stroke-dasharray: 2 3; animation: spin 14s linear infinite; transform-origin: center; transform-box: fill-box; }
@keyframes spin { to { transform: rotate(360deg); } }
.rack__text { font-family: var(--font-body); font-size: 8px; letter-spacing: 0.12em; text-transform: uppercase; fill: #c9cfd9; }
.rack__leader { stroke: rgba(11,13,18,0.35); stroke-width: 1; }
.rack__label { font-family: var(--font-display); font-weight: 600; font-size: 13px; fill: var(--ink); }
.rack__sub { font-family: var(--font-body); font-size: 10.5px; fill: var(--muted); }
.rack__panel { display: grid; gap: 16px; font-size: 14.5px; color: var(--muted); line-height: 1.5; }
.rack__panel strong { color: var(--ink); }
.rack__wallpanel { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; padding: 12px; background: var(--paper); border: 1.4px solid var(--ink); border-radius: 4px; width: 96px; }
.rack__wallpanel span { height: 14px; border-radius: 2px; background: var(--paper-3); border: 1px solid rgba(11,13,18,0.25); }
.rack__wallpanel span.is-on { background: var(--volt); border-color: var(--ink); }
@media (max-width: 800px) { .rack { grid-template-columns: minmax(0, 1fr); } }

/* ---------- drive-time rings ---------- */
.rings { width: 100%; height: auto; max-width: 620px; margin: 0 auto; display: block; }
.rings__ring { fill: none; stroke: rgba(11,13,18,0.14); stroke-width: 1; }
.rings__ringlabel { font-family: var(--font-body); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; fill: var(--faint); }
.rings__axis { stroke: rgba(11,13,18,0.07); stroke-width: 1; }
.rings__home { fill: var(--volt); stroke: var(--ink); stroke-width: 1.6; }
.rings__homering { fill: none; stroke: var(--ink); stroke-width: 1; opacity: 0.5; animation: ringpulse 3s ease-out infinite; transform-origin: center; transform-box: fill-box; }
@keyframes ringpulse { 0% { transform: scale(0.6); opacity: 0.7; } 100% { transform: scale(2.2); opacity: 0; } }
.rings__homelabel { font-family: var(--font-display); font-weight: 600; font-size: 12px; fill: var(--ink); }
.rings__hit { fill: transparent; }
.rings__dot { fill: var(--white-pure); stroke: var(--ink); stroke-width: 1.6; transition: fill 0.2s, r 0.2s; }
.rings__label { font-family: var(--font-body); font-size: 12.5px; font-weight: 500; fill: var(--ink); transition: font-weight 0.2s; }
.rings__area a:hover .rings__dot, .rings__area a:focus-visible .rings__dot { fill: var(--volt); }
.rings__area a:hover .rings__label { text-decoration: underline; text-underline-offset: 3px; }
.theme-ink .rings__ring { stroke: rgba(255,255,255,0.14); }
.theme-ink .rings__axis { stroke: rgba(255,255,255,0.06); }
.theme-ink .rings__dot { fill: var(--ink-2); stroke: rgba(255,255,255,0.8); }
.theme-ink .rings__label, .theme-ink .rings__homelabel { fill: var(--white); }
.theme-ink .rings__homering { stroke: var(--volt); }

/* ---------- process as a wire ---------- */
.steps { border-top: 0; position: relative; }
.steps::before { content: ''; position: absolute; left: 0; right: 0; top: 14px; height: 2px; background: var(--ink); opacity: 0.85; }
.step { padding-top: 0; }
.step__num { position: relative; z-index: 1; margin-top: 0; border-radius: 999px; padding: 6px 12px; box-shadow: 0 0 0 5px var(--bg); }
@media (max-width: 1100px) { .steps::before { display: none; } .step { padding-top: 28px; } }

/* ---------- page hero with illustration ---------- */
.page-hero__illus { width: 100%; max-width: 360px; margin-left: auto; padding: 18px; background: var(--white-pure); border: 1px solid var(--line); border-radius: var(--radius-lg); }
@media (max-width: 860px) { .page-hero__illus { margin-left: 0; max-width: 320px; } }
.page-hero__grid--illus { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); align-items: center; }
.page-hero__aside--illus { gap: 24px; align-items: stretch; }

/* ---------- misc polish ---------- */
.section-num { display: inline-block; font-family: var(--font-display); font-weight: 700; font-size: 12px; letter-spacing: 0.14em; color: var(--faint); margin-right: 10px; }
.hero__copy .btn-row { margin-top: 4px; }
.hero { padding-top: clamp(40px, 6vw, 88px); }
.schematic .room-group > *:not(.room) { pointer-events: none; }
.schematic .room-group > .room { pointer-events: all; }
@media (max-width: 520px) { .hero__screen-bar > span:last-child { display: none; } .scene-btn { font-size: 12.5px; padding: 0 10px; } }

/* ---------- guides ---------- */
.guide-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.guide-grid--compact { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.guide-card { display: flex; flex-direction: column; gap: 14px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--bg-2); transition: transform 0.4s var(--ease), border-color 0.3s; }
.guide-card:hover { transform: translateY(-3px); border-color: var(--line-strong); }
.guide-card--lead { grid-column: span 2; background: var(--ink); color: var(--white); border-color: transparent; }
.guide-card--lead p { color: #9aa1ae; }
.guide-card--lead .chip--solid { background: var(--volt); color: var(--ink); border-color: var(--volt); }
.guide-card--lead h2 { font-size: clamp(26px, 2.6vw, 34px); }
.guide-card__meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); }
.guide-card h2 { font-size: 22px; letter-spacing: -0.015em; }
.guide-card h2 a:hover { text-decoration: underline; text-underline-offset: 3px; }
.guide-card p { color: var(--muted); font-size: 15px; line-height: 1.55; text-wrap: pretty; }
.guide-card .link-arrow { margin-top: auto; align-self: flex-start; font-size: 14px; }
@media (max-width: 980px) { .guide-grid, .guide-grid--compact { grid-template-columns: repeat(2, minmax(0, 1fr)); } .guide-card--lead { grid-column: span 2; } }
@media (max-width: 640px) { .guide-grid, .guide-grid--compact { grid-template-columns: minmax(0, 1fr); } .guide-card--lead { grid-column: auto; } }

.guide-layout { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 5vw, 80px); align-items: start; }
.guide-side .sticky { display: grid; gap: 20px; }
.guide-answer { padding: 22px; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: var(--paper); }
.guide-answer p { font-size: 15.5px; line-height: 1.55; text-wrap: pretty; }
.guide-toc ol { display: grid; gap: 2px; margin-top: 10px; counter-reset: toc; }
.guide-toc li { counter-increment: toc; }
.guide-toc a { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 8px; padding: 7px 0; font-size: 14.5px; color: var(--muted); border-bottom: 1px solid var(--line); }
.guide-toc a::before { content: counter(toc, decimal-leading-zero); font-size: 11px; letter-spacing: 0.08em; color: var(--faint); padding-top: 3px; }
.guide-toc a:hover { color: var(--ink); }
.guide-body { max-width: 72ch; }
.guide-section { padding-bottom: 8px; margin-bottom: 40px; scroll-margin-top: calc(var(--header-h) + 24px); }
.guide-section h2 { font-size: clamp(26px, 2.6vw, 34px); margin-bottom: 18px; }
.guide-section p { font-size: 17.5px; line-height: 1.65; color: #2a2f3a; margin-bottom: 1.1em; text-wrap: pretty; }
.guide-list { list-style: none; display: grid; gap: 10px; margin: 0 0 1.4em; }
.guide-list li { position: relative; padding-left: 26px; font-size: 16.5px; line-height: 1.55; color: #2a2f3a; }
.guide-list li::before { content: ''; position: absolute; left: 4px; top: 11px; width: 8px; height: 8px; border-radius: 50%; background: var(--volt); box-shadow: 0 0 0 1.5px var(--ink); }
.table-wrap { overflow-x: auto; margin: 0 0 1.6em; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.guide-table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 560px; }
.guide-table th, .guide-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; line-height: 1.45; }
.guide-table thead th { background: var(--paper); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.guide-table tbody th { font-weight: 600; color: var(--ink); width: 30%; }
.guide-table tbody tr:last-child th, .guide-table tbody tr:last-child td { border-bottom: 0; }
.guide-callout { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 14px; padding: 20px 22px; margin: 0 0 1.6em; background: var(--ink); color: var(--white); border-radius: var(--radius-lg); }
.guide-callout svg { width: 24px; height: 24px; color: var(--volt); }
.guide-callout p { margin: 0; color: var(--white); font-size: 16px; }
.guide-steps { list-style: none; counter-reset: gs; display: grid; gap: 16px; margin: 0 0 1.6em; }
.guide-steps li { counter-increment: gs; position: relative; padding: 18px 20px 18px 62px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); }
.guide-steps li::before { content: counter(gs, decimal-leading-zero); position: absolute; left: 18px; top: 18px; font-family: var(--font-display); font-weight: 700; font-size: 14px; letter-spacing: 0.06em; color: var(--ink); background: var(--volt); padding: 3px 7px; border-radius: 3px; }
.guide-steps strong { display: block; font-size: 17px; margin-bottom: 4px; }
.guide-steps p { margin: 0; font-size: 15.5px; }
.guide-related { border-top: 1px solid var(--line); padding-top: 28px; }
@media (max-width: 900px) { .guide-layout { grid-template-columns: minmax(0, 1fr); } .guide-side .sticky { position: static; } }

/* ---------- AEO blocks on service pages ---------- */
.definition { padding: 26px 28px; border-left: 3px solid var(--volt); background: var(--white-pure); border-radius: 0 var(--radius-lg) var(--radius-lg) 0; margin-bottom: 28px; }
.definition p { font-size: 17px; line-height: 1.6; margin: 0; }
.definition .label { display: block; margin-bottom: 8px; }
.glance { display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--white-pure); }
.glance div { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.glance div:last-child { border-bottom: 0; }
.glance dt { color: var(--muted); font-weight: 500; }
.glance dd { margin: 0; font-weight: 500; }

/* ---------- sticky mobile CTA ---------- */
.mobile-cta { display: none; }
@media (max-width: 760px) {
  .mobile-cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: rgba(246,245,241,0.94); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-top: 1px solid var(--line); }
  .mobile-cta .btn { min-height: 46px; font-size: 14px; }
  body { padding-bottom: 72px; }
  body.nav-open .mobile-cta { display: none; }
}