/* Sync Automation site, v5. Black, white and grey only (colour appears only inside drawings and simulations). Aptos with Segoe UI fallback, no web fonts.
   One theme per page: light mode is light everywhere, dark mode is dark everywhere.
   Sections only step between --bg and --surface for rhythm; nothing is pinned to one theme. */

:root {
  --bg: #ffffff;
  --ink: #000000;
  --ink-2: #474747;
  --ink-3: #666666;
  --line: #dedede;
  --line-2: #bdbdbd;
  --surface: #f6f6f6;
  --surface-2: #ebebeb;
  --grid: rgba(0, 0, 0, 0.06);
  --ghost: 0.1;
  --shadow: 0 24px 64px -24px rgba(0, 0, 0, 0.22);
  --art-invert: 1;
  --font: Aptos, "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Aptos Display", Aptos, "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", "Cascadia Code", Consolas, ui-monospace, "SF Mono", Menlo, monospace;
  --wrap: 1320px;
  --gutter: clamp(16px, 4vw, 48px);
  --section: clamp(80px, 11vw, 168px);
  --head: 72px;
  --radius: 4px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000000; --ink: #ffffff; --ink-2: #bdbdbd; --ink-3: #8f8f8f;
    --line: #262626; --line-2: #3d3d3d; --surface: #0b0b0b; --surface-2: #171717;
    --grid: rgba(255, 255, 255, 0.05);
    --ghost: 0.14; --shadow: 0 24px 64px -24px rgba(0, 0, 0, 0.9);
    --art-invert: 0;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #000000; --ink: #ffffff; --ink-2: #bdbdbd; --ink-3: #8f8f8f;
  --line: #262626; --line-2: #3d3d3d; --surface: #0b0b0b; --surface-2: #171717;
  --grid: rgba(255, 255, 255, 0.05);
  --ghost: 0.14; --shadow: 0 24px 64px -24px rgba(0, 0, 0, 0.9);
  --art-invert: 0;
  color-scheme: dark;
}
/* .tone-dark used to pin a block to black in both themes. It now only marks a block that
   starts a new band (stage, page heads, footer); colours always follow the page theme. */
.tone-dark, .invert { background: var(--bg); color: var(--ink); }

/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: calc(var(--head) + 16px); }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font); font-size: 1.0625rem; line-height: 1.6;
  font-feature-settings: "kern", "liga"; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  accent-color: var(--ink); caret-color: var(--ink); overflow-x: hidden;
}
::selection { background: var(--ink); color: var(--bg); }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 600; line-height: 1.08; text-wrap: balance; }
p, ul, ol, dl, figure { margin: 0; }
p { text-wrap: pretty; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 2px; }
button { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.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; }

.skip { position: absolute; left: 12px; top: -100px; z-index: 200; background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: var(--radius); font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section); }
.section--tight { padding-block: clamp(56px, 7vw, 104px); }
.section + .section:not(.tone-dark):not(.band-surface) { padding-top: 0; }
.band-surface { background: var(--surface); }
.rule-top { border-top: 1px solid var(--line); }

/* Type */
.display { font-size: clamp(2.75rem, 5.6vw, 6.5rem); font-weight: 500; letter-spacing: -0.045em; line-height: 0.98; }
.h1 { font-size: clamp(2.5rem, 5.6vw, 5.25rem); font-weight: 500; letter-spacing: -0.04em; line-height: 1.02; }
.h2 { font-size: clamp(2rem, 4.2vw, 3.75rem); font-weight: 500; letter-spacing: -0.035em; line-height: 1.04; }
.h3 { font-size: clamp(1.25rem, 1.7vw, 1.5rem); letter-spacing: -0.015em; line-height: 1.2; }
.h4 { font-size: 1.0625rem; font-family: var(--font); font-weight: 700; line-height: 1.3; }
.lead { font-size: clamp(1.125rem, 1.5vw, 1.3125rem); line-height: 1.55; color: var(--ink-2); max-width: 40em; }
.muted { color: var(--ink-2); }
.measure { max-width: 66ch; }
.small { font-size: 0.9375rem; }
.stack > * + * { margin-top: 1em; }
.eyebrow { display: flex; align-items: center; gap: 12px; font-family: var(--mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); line-height: 1.4; }
.eyebrow::before { content: ""; width: 24px; height: 1px; background: currentColor; flex: none; }
.eyebrow--plain::before { display: none; }
.eyebrow + .h1, .eyebrow + .h2, .eyebrow + .display { margin-top: 20px; }
.h1 + .lead, .h2 + .lead, .display + .lead, .h2 + p, .h3 + p { margin-top: 20px; }
.mono { font-family: var(--mono); font-size: 0.8125rem; letter-spacing: 0.04em; }
.num { font-variant-numeric: tabular-nums; }

/* Buttons: capsules, after the strokes in the mark */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 24px; border-radius: 999px;
  border: 1.5px solid var(--ink); background: var(--ink); color: var(--bg);
  font-weight: 600; font-size: 1rem; line-height: 1; text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn:hover { background: transparent; color: var(--ink); }
.btn--line { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn--line:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn--sm { min-height: 40px; padding: 0 18px; font-size: 0.9375rem; }
.btn--lg { min-height: 56px; padding: 0 30px; font-size: 1.0625rem; }
.btn svg { width: 18px; height: 18px; flex: none; transition: transform 0.25s var(--ease); }
.btn:hover svg.arr { transform: translateX(3px); }
.btn[disabled] { opacity: 0.55; cursor: progress; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.textlink { font-weight: 600; text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 0.25em; }
.arrowlink { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; text-decoration: none; border-bottom: 1.5px solid currentColor; padding-bottom: 3px; }
.arrowlink svg { width: 16px; height: 16px; transition: transform 0.25s var(--ease); }
.arrowlink:hover svg { transform: translateX(4px); }

/* Placeholder marks for the owner */
.ph { display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; border: 1px dashed var(--ink-3); border-radius: 999px; padding: 2px 9px; color: var(--ink-2); white-space: nowrap; vertical-align: middle; }
.tag-ph { font-family: var(--mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; border: 1px dashed var(--ink-3); border-radius: 999px; padding: 2px 9px; color: var(--ink-2); }
.notice { border: 1px dashed var(--ink-3); border-radius: var(--radius); padding: 16px 20px; max-width: 72ch; font-size: 0.9375rem; }

/* ===== Header and mega menu ===== */
.header {
  position: sticky; top: 0; z-index: 60; height: var(--head);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  -webkit-backdrop-filter: saturate(140%) blur(14px); backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
@supports not (background: color-mix(in srgb, red 50%, transparent)) { .header { background: var(--bg); } }
.header.is-menu { background: var(--bg); }
.header__in { display: flex; align-items: center; gap: 28px; height: 100%; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; flex: none; }
.brand svg { width: 28px; height: 28px; }
.wordmark { font-weight: 700; font-size: 0.8125rem; letter-spacing: 0.26em; line-height: 1; white-space: nowrap; }
.nav { margin-left: 8px; }
.nav__list { list-style: none; padding: 0; margin: 0; display: flex; align-items: center; gap: 2px; }
.nav__link, .nav__trigger {
  display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 12px; border: 0; background: none; border-radius: 999px;
  text-decoration: none; font-size: 0.9375rem; font-weight: 500; white-space: nowrap; cursor: pointer; color: var(--ink);
}
.nav__link:hover, .nav__trigger:hover, .nav__trigger[aria-expanded="true"] { background: var(--surface-2); }
.nav__link[aria-current="page"] { text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 0.5em; }
.nav__trigger svg { width: 14px; height: 14px; transition: transform 0.25s var(--ease); }
.nav__trigger[aria-expanded="true"] svg { transform: rotate(180deg); }
.header__tools { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.iconbtn { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 999px; border: 1px solid transparent; background: transparent; cursor: pointer; }
.iconbtn:hover { border-color: var(--line-2); }
.iconbtn svg { width: 20px; height: 20px; }
.theme-sun { display: none; }
:root[data-theme="dark"] .theme-sun { display: block; }
:root[data-theme="dark"] .theme-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-sun { display: block; }
  :root:not([data-theme="light"]) .theme-moon { display: none; }
}
.menu-btn { display: none; }
.nav-extra { display: none; }

.mega {
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--bg); border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
}
.mega__in { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 6fr) minmax(0, 3.2fr); gap: clamp(24px, 3vw, 56px); padding-block: 40px 48px; }
.mega__intro .h3 { font-size: 1.75rem; font-weight: 500; letter-spacing: -0.025em; }
.mega__intro p { margin-top: 12px; color: var(--ink-2); font-size: 0.9688rem; }
.mega__intro .arrowlink { margin-top: 24px; font-size: 0.9375rem; }
.mega__links { list-style: none; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; align-content: start; }
.mega__links a { display: grid; grid-template-columns: 28px 1fr; gap: 2px 14px; padding: 14px 0; border-top: 1px solid var(--line); text-decoration: none; }
.mega__links svg { width: 24px; height: 24px; grid-row: span 2; margin-top: 1px; }
.mega__links b { font-weight: 600; font-size: 0.9688rem; }
.mega__links span { color: var(--ink-3); font-size: 0.875rem; line-height: 1.45; grid-column: 2; }
.mega__links a:hover b { text-decoration: underline; text-underline-offset: 0.25em; }
.mega__feat { display: flex; flex-direction: column; gap: 12px; padding: 22px; border-radius: var(--radius); text-decoration: none; min-height: 100%; position: relative; overflow: hidden; }
.mega__feat .eyebrow { color: var(--ink-3); }
.mega__feat b { font-family: var(--font-display); font-size: 1.375rem; font-weight: 500; letter-spacing: -0.02em; line-height: 1.15; }
.mega__feat p { color: var(--ink-2); font-size: 0.9063rem; }
.mega__feat .arrowlink { margin-top: auto; align-self: flex-start; font-size: 0.9375rem; }
.mega__feat svg.feat-art { width: 100%; height: auto; margin-block: 4px 8px; }
@media (prefers-reduced-motion: no-preference) {
  .mega:not([hidden]) { animation: megaIn 0.28s var(--ease); }
}
@keyframes megaIn { from { opacity: 0; transform: translateY(-6px); } }

@media (max-width: 1279px) { .header__quote { display: none; } .header__in { gap: 18px; } }
@media (max-width: 1099px) {
  .menu-btn { display: inline-grid; }
  .nav {
    position: fixed; left: 0; right: 0; top: var(--head); bottom: 0; margin: 0; overflow-y: auto; overscroll-behavior: contain;
    background: var(--bg); padding: 8px var(--gutter) 40px; display: none;
  }
  .nav.is-open { display: block; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__list > li { border-bottom: 1px solid var(--line); }
  .nav__link, .nav__trigger { width: 100%; justify-content: space-between; height: auto; padding: 18px 2px; border-radius: 0; font-size: 1.25rem; font-family: var(--font-display); letter-spacing: -0.01em; }
  .nav__link:hover, .nav__trigger:hover, .nav__trigger[aria-expanded="true"] { background: transparent; }
  .nav__trigger svg { width: 18px; height: 18px; }
  .mega { position: static; box-shadow: none; border: 0; background: transparent; }
  .mega__in { grid-template-columns: 1fr; padding: 0 0 20px; gap: 16px; }
  .mega__intro { display: none; }
  .mega__links { grid-template-columns: 1fr; }
  .mega__links a { padding: 12px 0; }
  .mega__feat { display: none; }
  .nav-extra { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
  .header__login { display: none; }
}
@media (max-width: 480px) {
  .wordmark { font-size: 0.75rem; letter-spacing: 0.22em; }
  .header__in { gap: 10px; }
}
body.menu-open { overflow: hidden; }

/* ===== Home stage: cinematic hero and the building story ===== */
.stage { position: relative; border-bottom: 1px solid var(--line); }
.stage__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 0 clamp(24px, 3vw, 48px); }
.stage__panels { grid-column: 1; grid-row: 1; position: relative; z-index: 1; }
.stage__visual {
  grid-column: 2; grid-row: 1; align-self: start; position: sticky; top: var(--head);
  height: calc(100vh - var(--head)); height: calc(100svh - var(--head)); min-height: 520px;
  display: grid; grid-template-rows: auto minmax(0, 1fr) auto; padding-block: 24px;
}
.stage__visual::before { /* drawing grid */
  content: ""; position: absolute; inset: 0 calc(-1 * var(--gutter)) 0 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(to right, var(--grid) 1px, transparent 1px), linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 55% 50%, #000 30%, transparent 80%); mask-image: radial-gradient(ellipse 70% 60% at 55% 50%, #000 30%, transparent 80%);
}
.hud { display: flex; justify-content: space-between; gap: 16px; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.hud b { color: var(--ink); font-weight: 500; }
.stage__art { min-height: 0; display: grid; place-items: center; }
.stage__art .bld { width: 100%; height: 100%; max-height: 100%; }
.layers { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.layers a { display: block; padding: 12px 10px 0 0; text-decoration: none; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); position: relative; transition: color 0.3s var(--ease); }
.layers a::before { content: ""; position: absolute; left: 0; right: 10px; top: -1px; height: 2px; background: var(--c, var(--ink)); transform: scaleX(0); transform-origin: left; transition: transform 0.6s var(--ease); }
.layers a span { display: block; color: var(--ink-3); margin-bottom: 2px; }
.layers a span::before { content: ""; display: inline-block; width: 12px; height: 3px; border-radius: 2px; background: var(--c, var(--ink)); margin-right: 7px; vertical-align: 0.22em; }
.layers a.is-past, .layers a.is-current, .stage:not(.is-staged) .layers a { color: var(--ink); }
.layers a.is-past::before { transform: scaleX(1); opacity: 0.45; }
.layers a.is-current::before, .stage:not(.is-staged) .layers a::before { transform: scaleX(1); opacity: 1; }

.chap { min-height: 82vh; min-height: 82svh; display: flex; flex-direction: column; justify-content: center; padding-block: 12vh; max-width: 34rem; }
.chap--hero { min-height: calc(100svh - var(--head)); justify-content: flex-end; padding-block: 48px 64px; max-width: none; }
.chap--hero .display { max-width: 11ch; }
.chap--hero .lead { margin-top: 28px; max-width: 34em; }
.chap--hero .actions { margin-top: 36px; }
.hero-facts { list-style: none; padding: 0; margin-top: 56px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.hero-facts li { padding: 16px 16px 0 0; font-size: 0.875rem; color: var(--ink-2); line-height: 1.45; }
.hero-facts li + li { padding-left: 16px; border-left: 1px solid var(--line); }
.hero-facts b { display: block; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; color: var(--ink); margin-bottom: 6px; }
.chap__n { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em; color: var(--ink-3); text-transform: uppercase; }
.chap .h2 { margin-top: 18px; }
.chap p.lead { margin-top: 20px; }
.specs { list-style: none; padding: 0; margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px; }
.specs li { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.04em; border: 1px solid var(--line-2); border-radius: 999px; padding: 5px 12px; color: var(--ink-2); }
.chap .arrowlink { margin-top: 32px; align-self: flex-start; }
.chap--end { max-width: 40rem; }

/* building drawing */
/* Light: black linework on white. The structure is pale grey so the systems (solid ink) read first. */
.bld {
  --b-ink: #000000; --b-paper: #ffffff;
  --b-site: #c4c4c4; --b-grid: #ececec; --b-col: #c9c9c9; --b-core: #bdbdbd;
  --b-slab: #8a8a8a; --b-edge: #f0f0f0; --b-fx: #fafafa;
  --b-glass: #9a9a9a; --b-glass-fill: #f2f2f2; --b-tint: rgba(0, 0, 0, 0.03);
  --b-text: #262626; --b-halo: 0.05; --b-halo-on: 0.12; --b-halo-line: 0.5;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .bld {
    --b-ink: #ffffff; --b-paper: #000000;
    --b-site: #343434; --b-grid: #161616; --b-col: #474747; --b-core: #3f3f3f;
    --b-slab: #858585; --b-edge: #151515; --b-fx: #0b0b0b;
    --b-glass: #6e6e6e; --b-glass-fill: #111111; --b-tint: rgba(255, 255, 255, 0.03);
    --b-text: #d4d4d4; --b-halo: 0.1; --b-halo-on: 0.16; --b-halo-line: 0;
  }
}
:root[data-theme="dark"] .bld {
  --b-ink: #ffffff; --b-paper: #000000;
  --b-site: #343434; --b-grid: #161616; --b-col: #474747; --b-core: #3f3f3f;
  --b-slab: #858585; --b-edge: #151515; --b-fx: #0b0b0b;
  --b-glass: #6e6e6e; --b-glass-fill: #111111; --b-tint: rgba(255, 255, 255, 0.03);
  --b-text: #d4d4d4; --b-halo: 0.1; --b-halo-on: 0.16; --b-halo-line: 0;
}
/* System colours: soft, muted and distinct. Defined once on the root so every drawing on the site
   (home building, Design Desk drawings, live demo) shares one palette. Used only inside drawings,
   simulations and their legends, never for page chrome. Strokes stay at 3:1 or more against the page;
   label text keeps the ink colour. */
:root {
  --c-power: #b5654b; --c-network: #5f7ba3; --c-climate: #4a8780;
  --c-lighting: #9a7d24; --c-security: #93678e; --c-bms: #6b7886;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --c-power: #c4886f; --c-network: #8299bd; --c-climate: #76aaa1;
    --c-lighting: #c9a95a; --c-security: #ad88aa; --c-bms: #8e9aa7;
  }
}
:root[data-theme="dark"] {
  --c-power: #c4886f; --c-network: #8299bd; --c-climate: #76aaa1;
  --c-lighting: #c9a95a; --c-security: #ad88aa; --c-bms: #8e9aa7;
}
.bld .sys[data-sys="power"], .layers [data-layer-link="power"] { --b-ink: var(--c-power); --c: var(--c-power); }
.bld .sys[data-sys="network"], .layers [data-layer-link="network"] { --b-ink: var(--c-network); --c: var(--c-network); }
.bld .sys[data-sys="climate"], .layers [data-layer-link="climate"] { --b-ink: var(--c-climate); --c: var(--c-climate); }
.bld .sys[data-sys="lighting"], .layers [data-layer-link="lighting"] { --b-ink: var(--c-lighting); --c: var(--c-lighting); }
.bld .sys[data-sys="security"], .layers [data-layer-link="security"] { --b-ink: var(--c-security); --c: var(--c-security); }
.bld .sys[data-sys="bms"], .layers [data-layer-link="bms"] { --b-ink: var(--c-bms); --c: var(--c-bms); }
.bld .site { fill: none; stroke: var(--b-site); stroke-width: 1; stroke-dasharray: 3 6; }
.bld .grid { fill: none; stroke: var(--b-grid); stroke-width: 1; }
.bld .col { fill: none; stroke: var(--b-col); stroke-width: 0.8; }
.bld .core { fill: var(--b-tint); stroke: var(--b-core); stroke-width: 0.8; }
.bld .slab { fill: var(--b-tint); stroke: var(--b-slab); stroke-width: 0.9; }
.bld .edge { fill: var(--b-edge); stroke: var(--b-slab); stroke-width: 0.6; }
.bld .mul { fill: none; stroke: var(--b-ink); stroke-opacity: 0.1; stroke-width: 0.6; }
.bld .fx { fill: var(--b-fx); stroke: var(--b-ink); stroke-width: 0.9; stroke-linejoin: round; }
.bld .fx--s { stroke-width: 0.7; }
.bld .glass .fx { stroke: var(--b-glass); fill: var(--b-glass-fill); }
.bld .ln { fill: none; stroke: var(--b-ink); stroke-width: 0.9; stroke-linejoin: round; }
.bld .ln--b { stroke-width: 1.6; }
.bld .ln--t { stroke-width: 0.6; stroke-opacity: 0.75; }
.bld .ln--d { stroke-dasharray: 5 4; stroke-width: 0.8; }
.bld .ring { fill: none; stroke: var(--b-ink); stroke-width: 0.6; stroke-dasharray: 2 4; stroke-opacity: 0.7; }
.bld .pt { fill: var(--b-ink); }
.bld .lamp { fill: var(--b-ink); }
.bld .halo { fill: var(--b-ink); fill-opacity: var(--b-halo); stroke: var(--b-ink); stroke-opacity: var(--b-halo-line); stroke-width: 0.6; stroke-dasharray: 2 2.5; }
.bld .cone { fill: var(--b-ink); fill-opacity: 0.06; stroke: var(--b-ink); stroke-opacity: 0.5; stroke-width: 0.7; stroke-dasharray: 4 4; }
.bld .link { fill: none; stroke: var(--b-ink); stroke-width: 0.7; stroke-dasharray: 1 3; }
.bld .node { fill: var(--b-paper); stroke: var(--b-ink); stroke-width: 1.2; }
.bld .pulse { fill: none; stroke: var(--b-ink); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 0 400; }
.bld .lbl { opacity: 0; transition: opacity 0.5s var(--ease); }
.bld .lbl path { fill: none; stroke: var(--b-ink); stroke-opacity: 0.55; stroke-width: 0.7; }
.bld .lbl circle { fill: var(--b-ink); }
.bld .lbl text { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; fill: var(--b-text); paint-order: stroke; stroke: var(--b-paper); stroke-width: 3px; stroke-linejoin: round; }
.bld .sys { transition: opacity 0.7s var(--ease); }
.stage.is-staged .sys { opacity: 0.07; }
.stage.is-staged .sys.is-past { opacity: 0.28; }
.stage.is-staged .sys.is-current { opacity: 1; }
.stage.is-staged .sys.is-current .lbl { opacity: 1; }
.stage.is-staged .sys.is-current .halo { fill-opacity: var(--b-halo-on); }
@media (prefers-reduced-motion: no-preference) {
  .bld .pulse { stroke-dasharray: 8 120; animation: flow 3.2s linear infinite; }
  .bld .pulse--slow { animation-duration: 4.6s; }
  .bld .pulse--fast { animation-duration: 2s; }
  .stage.is-idle .bld .pulse { animation-play-state: paused; }
  .js .bld .slab { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 1.4s var(--ease) 0.15s forwards; }
  .js .bld .sys { animation: rise 0.9s var(--ease) backwards; }
  .js .bld .sys[data-sys="power"] { animation-delay: 0.9s; }
  .js .bld .sys[data-sys="climate"] { animation-delay: 1.05s; }
  .js .bld .sys[data-sys="network"] { animation-delay: 1.2s; }
  .js .bld .sys[data-sys="lighting"] { animation-delay: 1.35s; }
  .js .bld .sys[data-sys="security"] { animation-delay: 1.5s; }
  .js .bld .sys[data-sys="bms"] { animation-delay: 1.65s; }
  .js .chap--hero > * { animation: up 0.9s var(--ease) backwards; }
  .js .chap--hero > :nth-child(2) { animation-delay: 0.08s; }
  .js .chap--hero > :nth-child(3) { animation-delay: 0.16s; }
  .js .chap--hero > :nth-child(4) { animation-delay: 0.24s; }
  .js .chap--hero > :nth-child(5) { animation-delay: 0.32s; }
}
@keyframes flow { from { stroke-dashoffset: 128; } to { stroke-dashoffset: 0; } }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes rise { from { opacity: 0; } }
@keyframes up { from { opacity: 0; transform: translateY(16px); } }

@media (max-width: 899px) {
  .stage__grid { grid-template-columns: 1fr; }
  .stage__visual { grid-column: 1; grid-row: 1; z-index: 2; height: 46vh; height: 46svh; min-height: 300px; padding-block: 12px 0; background: var(--bg); border-bottom: 1px solid var(--line); margin-inline: calc(-1 * var(--gutter)); padding-inline: var(--gutter); }
  .stage__visual::before { inset: 0; }
  .stage__panels { grid-row: 2; }
  .chap { min-height: 62svh; padding-block: 56px; }
  .chap--hero { min-height: 0; padding-block: 36px 56px; }
  .layers a { font-size: 0; padding-top: 10px; }
  .layers a span { font-size: 0.625rem; margin: 0; }
  .bld .lbl text { font-size: 14px; }
}
@media (max-width: 560px) {
  .hero-facts { grid-template-columns: 1fr; }
  .hero-facts li, .hero-facts li + li { padding: 14px 0; border-left: 0; }
  .hero-facts li + li { border-top: 1px solid var(--line); }
  .hud span:last-child { display: none; }
}

/* ===== Proof ===== */
.proof__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--ink); }
.stat { padding: 28px 24px 8px 0; }
.stat + .stat { padding-left: 24px; border-left: 1px solid var(--line); }
.stat__v { font-family: var(--font-display); font-size: clamp(2.5rem, 4.6vw, 4.25rem); font-weight: 400; letter-spacing: -0.045em; line-height: 1; font-variant-numeric: tabular-nums; }
.stat__v.is-ph { color: var(--ink-3); }
.stat__l { margin-top: 14px; color: var(--ink-2); font-size: 0.9375rem; line-height: 1.45; max-width: 22ch; }
.stat .ph { margin-top: 12px; }
@media (max-width: 860px) {
  .proof__grid { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); margin-top: 20px; }
}
.proof__row { margin-top: clamp(48px, 6vw, 80px); display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); gap: 32px; align-items: start; }
.proof__row + .proof__row { margin-top: 40px; }
.proof__row h3 { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; color: var(--ink-3); padding-top: 6px; }
.proof__row h3 + p { margin-top: 10px; font-size: 0.875rem; color: var(--ink-3); max-width: 28ch; }
.marks { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.marks li { display: grid; place-items: center; min-height: 76px; padding: 12px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); font-weight: 700; font-size: 0.875rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2); text-align: center; transition: color 0.2s var(--ease), background-color 0.2s var(--ease); }
.marks li:hover { color: var(--ink); background: var(--surface); }
.certs { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.cert { display: grid; grid-template-columns: 40px 1fr; gap: 4px 14px; align-items: start; border: 1px dashed var(--line-2); border-radius: var(--radius); padding: 16px; }
.cert svg { width: 36px; height: 36px; grid-row: span 3; }
.cert b { font-weight: 600; font-size: 0.9688rem; }
.cert span { font-size: 0.8438rem; color: var(--ink-3); }
.cert .ph { justify-self: start; margin-top: 4px; }
@media (max-width: 760px) { .proof__row { grid-template-columns: 1fr; gap: 16px; } }

/* ===== Section heads ===== */
.shead { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 24px clamp(32px, 6vw, 96px); align-items: end; margin-bottom: clamp(40px, 5vw, 72px); }
.shead .lead { margin: 0; }
.shead--stack { grid-template-columns: 1fr; }
@media (max-width: 860px) { .shead { grid-template-columns: 1fr; } }

/* ===== Process: from survey to handover ===== */
.process { position: relative; }
.process__track { position: relative; height: 2px; background: var(--line); margin-bottom: 0; }
.process__track span { position: absolute; inset: 0; background: var(--ink); transform-origin: left; transform: scaleX(var(--p, 1)); }
.process__steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
.process__steps li { padding: 32px 24px 0 0; position: relative; transition: opacity 0.5s var(--ease); }
.process__steps li + li { padding-left: 24px; border-left: 1px solid var(--line); }
.process__steps li::before { content: ""; position: absolute; top: -6px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: var(--bg); border: 2px solid var(--ink); }
.process__steps li + li::before { left: -6px; }
.process__steps .n { display: block; font-family: var(--font-display); font-size: clamp(3rem, 5vw, 4.5rem); font-weight: 300; letter-spacing: -0.05em; line-height: 1; font-variant-numeric: tabular-nums; margin-bottom: 28px; }
.process__steps h3 { margin-bottom: 10px; }
.process__steps p { color: var(--ink-2); font-size: 0.9688rem; }
.process__steps .deliv { margin-top: 16px; font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.04em; color: var(--ink-3); }
.js .process.is-scrubbing .process__steps li { opacity: 0.35; }
.js .process.is-scrubbing .process__steps li.is-reached { opacity: 1; }
.js .process.is-scrubbing .process__steps li.is-reached::before { background: var(--ink); }
@media (max-width: 1000px) {
  .process__track { display: none; }
  .process__steps { grid-template-columns: 1fr; border-left: 2px solid var(--line); margin-left: 5px; }
  .process__steps li, .process__steps li + li { padding: 0 0 40px 32px; border-left: 0; }
  .process__steps li::before, .process__steps li + li::before { left: -8px; top: 6px; }
  .process__steps .n { font-size: 2.75rem; margin-bottom: 12px; }
}

/* ===== Solutions index ===== */
.sol { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--ink); }
.sol li { border-bottom: 1px solid var(--line); }
.sol li:nth-child(odd) { border-right: 1px solid var(--line); }
.sol a { display: grid; grid-template-columns: 64px minmax(0, 1fr) 28px; gap: 6px 24px; align-items: start; padding: 32px 28px 32px 0; text-decoration: none; height: 100%; position: relative; transition: background-color 0.3s var(--ease); }
.sol li:nth-child(even) a { padding-left: 28px; }
.sol a:hover { background: var(--surface); }
.sol .sym { width: 48px; height: 48px; grid-row: span 2; }
.sol .k { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.14em; color: var(--ink-3); text-transform: uppercase; grid-column: 2; }
.sol h3 { grid-column: 2; font-size: clamp(1.375rem, 2.2vw, 1.875rem); font-weight: 500; letter-spacing: -0.025em; }
.sol p { grid-column: 2; color: var(--ink-2); font-size: 0.9688rem; max-width: 46ch; }
.sol .go { grid-column: 3; grid-row: 1 / span 2; width: 22px; height: 22px; align-self: center; transition: transform 0.3s var(--ease); }
.sol a:hover .go { transform: translateX(5px); }
@media (max-width: 860px) {
  .sol { grid-template-columns: 1fr; }
  .sol li:nth-child(odd) { border-right: 0; }
  .sol a, .sol li:nth-child(even) a { padding: 24px 0; grid-template-columns: 44px minmax(0, 1fr) 22px; gap: 4px 16px; }
  .sol .sym { width: 36px; height: 36px; }
}

/* ===== Case studies ===== */
.cases { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 2.5vw, 36px); }
.case-card a { display: block; text-decoration: none; }
.frame { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--surface-2); border-radius: var(--radius); }
.frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.case-card a:hover .frame img { transform: scale(1.035); }
.frame .ph { position: absolute; left: 14px; top: 14px; background: rgba(0, 0, 0, 0.6); color: #d4d4d4; border-color: #8f8f8f; }
.case-card .meta { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 18px; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.case-card h3 { margin-top: 10px; font-size: clamp(1.25rem, 1.8vw, 1.625rem); font-weight: 500; letter-spacing: -0.02em; }
.case-card p { margin-top: 8px; color: var(--ink-2); font-size: 0.9688rem; }
.case-card a:hover h3 { text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 0.2em; }
@media (max-width: 960px) { .cases { grid-template-columns: 1fr 1fr; } .cases li:first-child { grid-column: 1 / -1; } }
@media (max-width: 600px) { .cases { grid-template-columns: 1fr; } }

/* Full case studies (projects page) */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-block: 32px 16px; }
.case { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(28px, 4vw, 64px); padding-block: clamp(48px, 6vw, 88px); border-top: 1px solid var(--line); align-items: start; }
.case:first-of-type { border-top: 1px solid var(--ink); }
.case .frame { position: sticky; top: calc(var(--head) + 24px); }
.case__meta { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.case h2 { margin-top: 14px; font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 500; letter-spacing: -0.03em; }
.case dl { margin-top: 28px; border-top: 1px solid var(--line); }
.case dl > div { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.case dt { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); padding-top: 4px; }
.case dd { margin: 0; color: var(--ink-2); font-size: 0.9688rem; }
.chips { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.chips li { font-size: 0.8125rem; border: 1px solid var(--line-2); border-radius: 999px; padding: 3px 10px; color: var(--ink); }
.figs { margin-top: 24px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--ink); }
.figs > div { padding: 16px 12px 0 0; }
.figs > div + div { padding-left: 12px; border-left: 1px solid var(--line); }
.figs b { display: block; font-family: var(--font-display); font-size: clamp(1.75rem, 2.6vw, 2.25rem); font-weight: 400; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.figs span { display: block; margin-top: 8px; font-size: 0.8438rem; color: var(--ink-3); line-height: 1.4; }
.figs-note { margin-top: 12px; }
@media (max-width: 900px) { .case { grid-template-columns: 1fr; } .case .frame { position: relative; top: 0; } }
@media (max-width: 420px) { .case dl > div { grid-template-columns: 1fr; gap: 4px; } }
.empty { padding: 40px 0; color: var(--ink-2); }

/* ===== Platform: Design Desk product UI ===== */
.platform { overflow: hidden; }
.platform__grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.platform__text .lead { margin-top: 20px; }
.platform__text .actions { margin-top: 32px; }
.modlist { list-style: none; padding: 0; margin-top: 36px; border-top: 1px solid var(--line); }
.modlist li { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 0.9375rem; }
.status { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.1em; text-transform: uppercase; border: 1px solid currentColor; border-radius: 999px; padding: 2px 10px; white-space: nowrap; }
.status--live { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.status--soon { color: var(--ink-3); }
@media (max-width: 1000px) { .platform__grid { grid-template-columns: 1fr; } }

/* Product UI mockup: follows the page theme, framed as an app window */
.app {
  --a-bg: #ffffff; --a-panel: #f6f6f6; --a-hover: #e9e9e9; --a-canvas: #fcfcfc;
  --a-ink: #111111; --a-ink-2: #3d3d3d; --a-muted: #5c5c5c; --a-line: #e2e2e2; --a-line-2: #cccccc;
  --a-strong: #000000; --a-wall: #1a1a1a; --a-door: #8a8a8a; --a-frame: #cfcfcf;
  --a-shadow: 0 40px 120px -48px rgba(0, 0, 0, 0.28);
  background: var(--a-bg); color: var(--a-ink); border: 1px solid var(--a-frame); border-radius: 10px; overflow: hidden;
  box-shadow: var(--a-shadow);
  font-family: var(--font); font-size: 12px; line-height: 1.3; user-select: none;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .app {
    --a-bg: #000000; --a-panel: #111111; --a-hover: #262626; --a-canvas: #0a0a0a;
    --a-ink: #f5f5f5; --a-ink-2: #c7c7c7; --a-muted: #a3a3a3; --a-line: #232323; --a-line-2: #333333;
    --a-strong: #ffffff; --a-wall: #e6e6e6; --a-door: #7a7a7a; --a-frame: #2a2a2a;
    --a-shadow: 0 40px 120px -40px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  }
}
:root[data-theme="dark"] .app {
  --a-bg: #000000; --a-panel: #111111; --a-hover: #262626; --a-canvas: #0a0a0a;
  --a-ink: #f5f5f5; --a-ink-2: #c7c7c7; --a-muted: #a3a3a3; --a-line: #232323; --a-line-2: #333333;
  --a-strong: #ffffff; --a-wall: #e6e6e6; --a-door: #7a7a7a; --a-frame: #2a2a2a;
  --a-shadow: 0 40px 120px -40px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}
.app__top { display: flex; align-items: center; gap: 10px; height: 40px; padding: 0 10px; background: var(--a-panel); border-bottom: 1px solid var(--a-line); white-space: nowrap; overflow: hidden; }
.app__top svg { width: 16px; height: 16px; flex: none; }
.app__menu { display: flex; gap: 2px; color: var(--a-ink-2); }
.app__menu span { padding: 4px 7px; border-radius: 4px; }
.app__sep { width: 1px; height: 18px; background: var(--a-line-2); flex: none; }
.app__proj { font-weight: 650; }
.app__saved { font-size: 11px; color: var(--a-muted); border: 1px solid var(--a-line-2); border-radius: 999px; padding: 2px 8px; }
.app__sp { flex: 1; }
.app__search { display: inline-flex; align-items: center; gap: 8px; color: var(--a-muted); border: 1px solid var(--a-line-2); border-radius: 6px; padding: 4px 8px; }
.app__search kbd { font-family: var(--mono); font-size: 10px; border: 1px solid var(--a-line-2); border-radius: 3px; padding: 0 4px; }
.app__boq { background: var(--a-ink); color: var(--a-bg); font-weight: 650; border-radius: 6px; padding: 5px 10px; }
.app__body { display: grid; grid-template-columns: 170px minmax(0, 1fr) 190px; height: clamp(320px, 36vw, 470px); }
.app__lib, .app__insp { background: var(--a-panel); border-right: 1px solid var(--a-line); padding: 10px; display: flex; flex-direction: column; gap: 8px; min-width: 0; overflow: hidden; }
.app__insp { border-right: 0; border-left: 1px solid var(--a-line); }
.app__tabs { display: flex; gap: 12px; border-bottom: 1px solid var(--a-line); padding-bottom: 6px; color: var(--a-muted); }
.app__tabs b { color: var(--a-ink); font-weight: 650; box-shadow: 0 7px 0 -5px var(--a-ink); }
.app__field { border: 1px solid var(--a-line-2); border-radius: 6px; padding: 5px 8px; color: var(--a-muted); }
.app__grp { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--a-muted); margin-top: 4px; }
.app__item { display: flex; align-items: center; gap: 8px; padding: 5px 6px; border-radius: 5px; color: var(--a-ink-2); }
.app__item svg { width: 15px; height: 15px; flex: none; }
.app__item.is-on { background: var(--a-hover); color: var(--a-ink); box-shadow: inset 0 0 0 1px var(--a-ink); }
.app__canvas { position: relative; background: var(--a-canvas); min-width: 0; overflow: hidden; }
.app__canvas > svg { position: absolute; inset: 14px 14px 30px 52px; width: calc(100% - 66px); height: calc(100% - 44px); }
.app__tools { position: absolute; left: 10px; top: 46px; display: flex; flex-direction: column; gap: 2px; padding: 4px; background: var(--a-panel); border: 1px solid var(--a-line); border-radius: 8px; }
.app__tools i { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 5px; color: var(--a-ink-2); }
.app__tools i.is-on { background: var(--a-ink); color: var(--a-bg); }
.app__tools svg { width: 15px; height: 15px; }
.app__floor { position: absolute; left: 10px; top: 10px; display: flex; gap: 8px; align-items: center; padding: 4px 8px; background: var(--a-panel); border: 1px solid var(--a-line); border-radius: 8px; color: var(--a-ink-2); }
.app__zoom { position: absolute; right: 10px; bottom: 10px; display: flex; gap: 6px; align-items: center; padding: 4px 8px; background: var(--a-panel); border: 1px solid var(--a-line); border-radius: 8px; color: var(--a-ink-2); font-family: var(--mono); font-size: 11px; }
.app__insp h4 { font-size: 12px; font-weight: 650; display: flex; justify-content: space-between; }
.app__kv { display: grid; grid-template-columns: 1fr auto; gap: 6px 8px; color: var(--a-muted); }
.app__kv b { color: var(--a-ink); font-weight: 500; text-align: right; font-variant-numeric: tabular-nums; }
.app__check { margin-top: auto; border-top: 1px solid var(--a-line); padding-top: 8px; color: var(--a-ink-2); display: grid; gap: 5px; }
.app__check span::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--a-ink); margin-right: 8px; vertical-align: 1px; }
.app__status { display: flex; gap: 18px; height: 26px; align-items: center; padding: 0 10px; border-top: 1px solid var(--a-line); background: var(--a-panel); color: var(--a-muted); font-size: 11px; white-space: nowrap; overflow: hidden; }
.app .plan text { fill: var(--a-muted); font-size: 13px; font-family: var(--font); }
.app .plan .walls { fill: none; stroke: var(--a-wall); stroke-width: 7; stroke-linecap: square; }
.app .plan .walls-in { fill: none; stroke: var(--a-wall); stroke-width: 3.5; stroke-linecap: square; }
.app .plan .window { fill: var(--a-canvas); stroke: var(--a-wall); stroke-width: 1.25; }
.app .plan .door { fill: none; stroke: var(--a-door); stroke-width: 1; }
.app .plan .dev { fill: none; stroke: var(--a-strong); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.app .plan .dev .bgfill { fill: var(--a-canvas); }
.app .plan .dev .fill { fill: var(--a-strong); stroke: none; }
.app .plan .zone { fill: var(--a-strong); fill-opacity: 0.07; stroke-dasharray: 4 4; stroke-width: 1; }
.app .plan .ring { stroke-dasharray: 3 5; stroke-width: 1; stroke-opacity: 0.7; }
.app .plan .run { stroke-dasharray: 1 5; stroke-width: 1.4; }
.app .plan .sel { fill: none; stroke: var(--a-strong); stroke-width: 1; stroke-dasharray: 3 3; }
@media (max-width: 1180px) { .app__body { grid-template-columns: 150px minmax(0, 1fr); } .app__insp { display: none; } .app__menu { display: none; } }
@media (max-width: 640px) { .app__body { grid-template-columns: minmax(0, 1fr); height: 300px; } .app__lib, .app__search, .app__saved, .app__sep { display: none; } .app__canvas > svg { inset: 44px 10px 30px 46px; width: calc(100% - 56px); height: calc(100% - 74px); } }

/* ===== Experience it live ===== */
.live__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.live__text .actions { margin-top: 32px; }
.live__links { list-style: none; padding: 0; margin-top: 32px; border-top: 1px solid var(--line); }
.live__links a { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); text-decoration: none; font-weight: 600; }
.live__links a span { display: block; font-weight: 400; font-size: 0.875rem; color: var(--ink-3); }
.live__links svg { width: 20px; height: 20px; flex: none; transition: transform 0.3s var(--ease); }
.live__links a:hover svg { transform: translateX(4px); }
.dash { border: 1px solid var(--line); border-radius: 10px; background: var(--surface); padding: clamp(14px, 2vw, 22px); display: grid; gap: 12px; }
.dash__top { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.dash__top .sim { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); }
.dash__top .sim::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ink); }
@media (prefers-reduced-motion: no-preference) { .dash__top .sim::before { animation: blink 2s steps(1) infinite; } }
@keyframes blink { 50% { opacity: 0.25; } }
.dash__tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.tile { background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 14px; min-width: 0; }
.tile__k { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); display: flex; justify-content: space-between; gap: 8px; }
.tile__v { margin-top: 10px; font-family: var(--font-display); font-size: clamp(1.5rem, 2.4vw, 2.125rem); letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums; }
.tile__v small { font-size: 0.5em; color: var(--ink-3); letter-spacing: 0; margin-left: 4px; }
.tile__s { margin-top: 8px; font-size: 0.8125rem; color: var(--ink-2); }
.tile--wide { grid-column: 1 / -1; }
.trend { width: 100%; height: 90px; margin-top: 8px; }
.trend path { fill: none; stroke: var(--ink); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.trend .sp { stroke: var(--ink-3); stroke-dasharray: 3 4; stroke-width: 1; }
.trend .ar { fill: var(--ink); fill-opacity: 0.06; stroke: none; }
.zones { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 4px; margin-top: 10px; }
.zones i { height: 18px; border-radius: 2px; background: var(--ink); opacity: 0.85; transition: opacity 0.6s var(--ease); }
.zones i.off { opacity: 0.15; }
.zones i.mid { opacity: 0.45; }
@media (max-width: 1000px) { .live__grid { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .dash__tiles { grid-template-columns: 1fr 1fr; } .dash__tiles .tile:nth-child(3) { grid-column: 1 / -1; } }

/* ===== Industries ===== */
.ind { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.ind a { display: flex; flex-direction: column; gap: 10px; min-height: 220px; padding: 28px; background: var(--bg); text-decoration: none; transition: background-color 0.3s var(--ease); }
.ind a:hover { background: var(--surface); }
.ind .k { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.ind h3 { font-size: clamp(1.375rem, 2vw, 1.75rem); font-weight: 500; letter-spacing: -0.025em; margin-top: auto; }
.ind p { color: var(--ink-2); font-size: 0.9375rem; }
@media (max-width: 900px) { .ind { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .ind { grid-template-columns: 1fr; } .ind a { min-height: 0; } }

/* ===== Final call to action ===== */
.cta-final { position: relative; overflow: hidden; }
.cta-final__in { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: 40px; align-items: end; }
.cta-final .display { font-size: clamp(2.75rem, 6.6vw, 6.25rem); max-width: 12ch; }
.cta-final .lead { margin-top: 28px; }
.cta-final .actions { justify-content: flex-end; }
.cta-final__mark { position: absolute; right: -4%; bottom: -18%; width: min(560px, 60vw); opacity: 0.08; pointer-events: none; }
@media (max-width: 900px) { .cta-final__in { grid-template-columns: 1fr; } .cta-final .actions { justify-content: flex-start; } }

/* Older CTA block, kept for inner pages */
.cta { border-top: 1px solid var(--ink); padding-top: clamp(40px, 5vw, 64px); display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 40px; align-items: end; }
.cta .lead { margin-top: 20px; }
.cta .actions { justify-content: flex-end; }
@media (max-width: 900px) { .cta { grid-template-columns: 1fr; } .cta .actions { justify-content: flex-start; } }

/* ===== Page heads ===== */
.pagehead { padding-block: clamp(48px, 7vw, 104px) clamp(40px, 5vw, 72px); border-bottom: 1px solid var(--line); }
.pagehead .lead { margin-top: 24px; }
.pagehead .actions { margin-top: 32px; }
.pagehead .h1 { max-width: 16ch; }
.pagehead--dark { position: relative; overflow: hidden; padding-block: clamp(64px, 9vw, 144px) clamp(56px, 7vw, 104px); border-bottom: 1px solid var(--line); }
.pagehead--dark::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(to right, var(--grid) 1px, transparent 1px), linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(100deg, transparent 30%, #000 85%); mask-image: linear-gradient(100deg, transparent 30%, #000 85%);
}
.pagehead--dark .wrap { position: relative; }
.pagehead--dark .h1 { max-width: 14ch; }
.crumbs { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 40px; }
.crumbs li + li::before { content: "/"; margin-right: 8px; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--ink); text-decoration: underline; }
.pagehead__aside { position: absolute; right: var(--gutter); top: 50%; transform: translateY(-50%); width: min(500px, 34vw); height: auto; pointer-events: none; }
.pagehead--dark .lead { max-width: 36em; }
.pagehead--dark .jump { max-width: 64%; }
@media (max-width: 1099px) { .pagehead__aside { display: none; } .pagehead--dark .jump { max-width: none; } }
.jump { list-style: none; padding: 0; margin-top: 48px; display: flex; flex-wrap: wrap; gap: 8px; }
.jump a { display: inline-block; text-decoration: none; border: 1px solid var(--line-2); border-radius: 999px; padding: 7px 14px; font-size: 0.875rem; }
.jump a:hover { border-color: var(--ink); }

/* ===== Solutions detail page ===== */
.svc-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: clamp(32px, 5vw, 96px); }
.toc { position: sticky; top: calc(var(--head) + 32px); align-self: start; padding-top: var(--section); }
.toc p { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px; }
.toc ol { list-style: none; padding: 0; border-left: 1px solid var(--line); }
.toc a { display: block; padding: 7px 0 7px 16px; margin-left: -1px; border-left: 2px solid transparent; text-decoration: none; color: var(--ink-3); font-size: 0.9375rem; }
.toc a:hover, .toc a.is-active { color: var(--ink); border-left-color: var(--ink); }
.svc { padding-block: var(--section) 0; }
.svc:last-child { padding-bottom: var(--section); }
.svc__k { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); display: flex; align-items: center; gap: 14px; }
.svc__k svg { width: 32px; height: 32px; color: var(--ink); }
.svc .h2 { margin-top: 18px; }
.svc__intro { margin-top: 24px; font-size: clamp(1.125rem, 1.4vw, 1.25rem); line-height: 1.55; max-width: 60ch; color: var(--ink-2); }
.svc__cols { display: grid; grid-template-columns: 1fr 1fr; margin-top: 40px; border-top: 1px solid var(--ink); }
.svc__cols > div { padding: 22px 28px 0 0; }
.svc__cols > div + div { padding-left: 28px; border-left: 1px solid var(--line); }
.svc__cols h3 { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; color: var(--ink-3); margin-bottom: 12px; }
.ticks { list-style: none; padding: 0; }
.ticks li { position: relative; padding: 8px 0 8px 22px; border-bottom: 1px solid var(--line); }
.ticks li:last-child { border-bottom: 0; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: 1.05em; width: 8px; height: 1.5px; background: var(--ink); }
.svc__more { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; }
@media (max-width: 1000px) { .svc-layout { grid-template-columns: 1fr; } .toc { display: none; } }
@media (max-width: 640px) {
  .svc__cols { grid-template-columns: 1fr; }
  .svc__cols > div, .svc__cols > div + div { padding: 20px 0 0; border-left: 0; }
  .svc__cols > div + div { margin-top: 12px; border-top: 1px solid var(--line); }
}

/* ===== Generic grids used by inner pages ===== */
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.split > :first-child { position: sticky; top: calc(var(--head) + 40px); }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } .split > :first-child { position: static; } }
.outputs { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--ink); }
.outputs li { padding: 24px 28px 0 0; }
.outputs li + li { padding-left: 28px; border-left: 1px solid var(--line); }
.outputs .n { display: block; font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em; color: var(--ink-3); margin-bottom: 20px; }
.outputs h3 { margin-bottom: 10px; }
.outputs p { color: var(--ink-2); }
@media (max-width: 800px) {
  .outputs { grid-template-columns: 1fr; }
  .outputs li, .outputs li + li { padding: 22px 0; border-left: 0; }
  .outputs li + li { border-top: 1px solid var(--line); }
}
.modules { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.module { background: var(--bg); padding: 28px; display: flex; flex-direction: column; gap: 12px; min-height: 240px; }
.module__top { display: flex; justify-content: space-between; align-items: start; gap: 12px; }
.module svg.sym { width: 40px; height: 40px; }
.module p { color: var(--ink-2); }
.module .actions { margin-top: auto; padding-top: 8px; }
@media (max-width: 700px) { .modules { grid-template-columns: 1fr; } }
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; }
.facts > div { padding: 22px 0; border-top: 1px solid var(--line); }
.facts h3 { font-size: 1.0625rem; font-family: var(--font); font-weight: 700; margin-bottom: 6px; }
.facts p { color: var(--ink-2); }
@media (max-width: 700px) { .facts { grid-template-columns: 1fr; } }
.steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--ink); counter-reset: step; }
.steps li { padding: 28px 28px 8px 0; counter-increment: step; }
.steps li + li { padding-left: 28px; border-left: 1px solid var(--line); }
.steps li::before { content: "0" counter(step); display: block; font-family: var(--font-display); font-size: 3.25rem; font-weight: 300; line-height: 1; letter-spacing: -0.05em; margin-bottom: 28px; font-variant-numeric: tabular-nums; }
.steps h3 { margin-bottom: 10px; }
.steps p { color: var(--ink-2); }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr 1fr; } .steps li:nth-child(3) { padding-left: 0; border-left: 0; } .steps li:nth-child(n+3) { border-top: 1px solid var(--line); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } .steps li, .steps li + li { padding: 24px 0; border-left: 0; } .steps li + li { border-top: 1px solid var(--line); } .steps li::before { margin-bottom: 14px; font-size: 2.5rem; } }
.team { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 3vw, 32px); max-width: 1040px; }
.person__img { aspect-ratio: 4 / 5; border: 1px dashed var(--line-2); border-radius: var(--radius); display: grid; place-items: center; color: var(--ink-3); background: var(--surface); }
.person__img svg { width: 36%; }
.person h3 { margin-top: 14px; font-size: 1.125rem; font-family: var(--font); }
.person p { color: var(--ink-2); font-size: 0.9375rem; }
@media (max-width: 700px) { .team { grid-template-columns: 1fr 1fr; } }
@media (max-width: 420px) { .team { grid-template-columns: 1fr; } }
.ind-detail { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(24px, 5vw, 80px); padding-block: clamp(48px, 6vw, 88px); border-top: 1px solid var(--line); }
.ind-detail:first-child { border-top: 1px solid var(--ink); }
.ind-detail .k { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.ind-detail h2 { margin-top: 14px; font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 500; letter-spacing: -0.03em; }
.ind-detail .cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; margin-top: 28px; }
.ind-detail .cols h3 { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; color: var(--ink-3); margin-bottom: 8px; }
.ind-detail .svc__more { margin-top: 28px; }
@media (max-width: 860px) { .ind-detail { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .ind-detail .cols { grid-template-columns: 1fr; gap: 20px; } }
.prose { max-width: 70ch; }
.prose h2 { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.015em; margin-top: 48px; }
.prose p, .prose ul { margin-top: 14px; color: var(--ink-2); }
.prose ul { padding-left: 1.2em; }

/* Drawing sheet with the interactive plan (used by the live demo) */
.sheet { margin: 0; border: 1.5px solid var(--ink); background: var(--bg); min-width: 0; }
.sheet__head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.sheet__title { font-size: 1rem; font-weight: 600; font-family: var(--font); letter-spacing: 0; }
.sheet__hint { font-size: 0.875rem; color: var(--ink-2); }
.sheet__plan { padding: clamp(8px, 2vw, 20px); }
.plan { width: 100%; height: auto; color: var(--ink); }
.plan text { font-family: var(--font); fill: var(--ink-2); font-size: 13px; }
.plan .walls { fill: none; stroke: var(--ink); stroke-width: 7; stroke-linecap: square; }
.plan .walls-in { fill: none; stroke: var(--ink); stroke-width: 3.5; stroke-linecap: square; }
.plan .window { fill: var(--bg); stroke: var(--ink); stroke-width: 1.25; }
.plan .door { fill: none; stroke: var(--ink-2); stroke-width: 1; }
.plan .site { fill: none; stroke: var(--ink-2); stroke-width: 1.25; stroke-dasharray: 2 5; stroke-linecap: round; }
.plan .layer { fill: none; stroke: var(--ink); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; transition: opacity 0.35s var(--ease); }
.plan .layer .fill { fill: var(--ink); stroke: none; }
.plan .layer .bgfill { fill: var(--bg); }
.plan .layer .zone { fill: var(--ink); fill-opacity: 0.05; stroke-dasharray: 4 4; stroke-width: 1; }
.plan .layer .run { stroke-dasharray: 1 5; stroke-width: 1.4; }
.plan .layer .ring { stroke-dasharray: 3 5; stroke-width: 1; }
.plan .layer.is-off { opacity: var(--ghost); }
.legend { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px 18px; border-top: 1px solid var(--line); }
.chip {
  display: inline-flex; align-items: center; gap: 10px; min-height: 40px; padding: 0 16px;
  border-radius: 999px; border: 1.5px solid var(--ink); background: var(--ink); color: var(--bg);
  font-size: 0.9375rem; font-weight: 600; cursor: pointer; transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.chip svg { width: 20px; height: 20px; flex: none; }
.chip[aria-pressed="false"] { background: transparent; color: var(--ink-2); border-color: var(--line-2); }
.chip[aria-pressed="false"]:hover { color: var(--ink); border-color: var(--ink); }
.titleblock { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; border-top: 1.5px solid var(--ink); font-size: 0.8125rem; }
.titleblock > div { padding: 10px 14px; border-left: 1px solid var(--line); min-width: 0; }
.titleblock > div:first-child { border-left: 0; }
.titleblock dt { color: var(--ink-2); }
.titleblock dd { margin: 2px 0 0; font-weight: 600; font-size: 0.9375rem; overflow-wrap: anywhere; }
@media (max-width: 640px) {
  .titleblock { grid-template-columns: 1fr 1fr; }
  .titleblock > div:nth-child(3) { border-left: 0; }
  .titleblock > div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .sheet__hint { display: none; }
  .legend { padding: 12px; gap: 6px; }
  .chip { padding: 0 12px; font-size: 0.875rem; }
}

/* ===== Contact form ===== */
.contact-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.form { display: grid; gap: 22px; }
.form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 600px) { .form .two { grid-template-columns: 1fr; } }
.field { display: grid; gap: 8px; }
.field > label, .field legend { font-weight: 600; font-size: 0.9688rem; }
.field .opt { font-weight: 400; color: var(--ink-2); }
.field .help { font-size: 0.875rem; color: var(--ink-2); }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%; min-height: 52px; padding: 12px 14px; font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line-2); border-radius: var(--radius); transition: border-color 0.15s var(--ease);
}
select { appearance: none; -webkit-appearance: none; padding-right: 42px; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%); background-position: calc(100% - 22px) 52%, calc(100% - 16px) 52%; background-size: 6px 6px; background-repeat: no-repeat; }
textarea { min-height: 150px; resize: vertical; line-height: 1.5; }
input:hover, select:hover, textarea:hover { border-color: var(--ink-2); }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--ink); outline-offset: 1px; border-color: var(--ink); }
::placeholder { color: var(--ink-3); opacity: 1; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
fieldset legend { padding: 0; margin-bottom: 10px; }
.checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 16px; }
@media (max-width: 480px) { .checks { grid-template-columns: 1fr; } }
.check { display: flex; align-items: center; gap: 10px; min-height: 40px; cursor: pointer; }
.check input { width: 20px; height: 20px; margin: 0; flex: none; }
.radios { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--ink); border-width: 2.5px; }
.error { display: none; font-size: 0.9063rem; font-weight: 600; gap: 8px; align-items: center; }
.error svg { width: 16px; height: 16px; flex: none; }
.field.has-error .error { display: flex; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { border: 1.5px solid var(--ink); border-radius: var(--radius); padding: 20px; }
.form-status h2 { font-size: 1.25rem; font-family: var(--font); margin-bottom: 8px; }
.form-status .actions { margin-top: 16px; }
.form-foot { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.form-foot p { font-size: 0.875rem; color: var(--ink-2); max-width: 44ch; }
.contacts { list-style: none; padding: 0; border-top: 1px solid var(--ink); }
.contacts li { padding: 18px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 24px 1fr; gap: 14px; }
.contacts svg { width: 22px; height: 22px; margin-top: 2px; }
.contacts .k { display: block; font-size: 0.875rem; color: var(--ink-2); }
.contacts a { font-weight: 600; }
.h3 + .contacts { margin-top: 20px; }

/* ===== Footer ===== */
.footer { padding-top: clamp(64px, 8vw, 120px); }
.footer__top { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 32px; align-items: end; padding-bottom: clamp(48px, 6vw, 88px); border-bottom: 1px solid var(--line); }
.footer__top .h2 { max-width: 14ch; }
.footer__top .actions { justify-content: flex-end; }
.footer__cols { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)) minmax(0, 1.3fr); gap: 32px; padding-block: 48px; }
.footer__cols h2 { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; color: var(--ink-3); margin-bottom: 16px; }
.footer__cols ul { list-style: none; padding: 0; display: grid; gap: 8px; }
.footer__cols a { text-decoration: none; color: var(--ink-2); font-size: 0.9375rem; }
.footer__cols a:hover { color: var(--ink); text-decoration: underline; }
.footer__cols address { font-style: normal; color: var(--ink-2); font-size: 0.9375rem; line-height: 1.65; }
.footer__brand .brand svg { width: 36px; height: 36px; }
.footer__brand p { margin-top: 18px; color: var(--ink-2); font-size: 0.9375rem; max-width: 30ch; }
.footer__social { display: flex; gap: 8px; margin-top: 20px; }
.footer__social a { display: inline-grid; place-items: center; width: 40px; height: 40px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--ink); }
.footer__social a:hover { border-color: var(--ink); }
.footer__social svg { width: 18px; height: 18px; }
.footer__base { border-top: 1px solid var(--line); padding-block: 20px 28px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; font-size: 0.8125rem; color: var(--ink-3); }
.footer__base ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 20px; }
.footer__base a { text-decoration: none; }
.footer__base a:hover { color: var(--ink); text-decoration: underline; }
@media (max-width: 1100px) { .footer__cols { grid-template-columns: repeat(3, minmax(0, 1fr)); } .footer__brand { grid-column: 1 / -1; } }
@media (max-width: 760px) { .footer__top { grid-template-columns: 1fr; } .footer__top .actions { justify-content: flex-start; } }
@media (max-width: 600px) { .footer__cols { grid-template-columns: 1fr 1fr; } .footer__office { grid-column: 1 / -1; } }

/* 404 */
.nf { min-height: 56vh; display: grid; align-content: center; gap: 24px; }

/* Scroll reveal (below the fold only) */
@media (prefers-reduced-motion: no-preference) {
  .js [data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
  .js [data-reveal].is-in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
}
@media print {
  .header, .footer, .legend, .skip, .stage__visual { display: none; }
  body { background: #fff; color: #000; }
  .tone-dark { background: #fff; color: #000; }
}
.steps, .outputs, .modules, .team { margin-top: clamp(32px, 4vw, 56px); }

/* Additions */
.nav__item--m { display: none; }
@media (max-width: 1099px) { .nav__item--m { display: block; } }
.nav__trigger.is-current { text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 0.5em; }
.mega__feat img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 3px; }
.footer__contact { margin-top: 14px; }
.footer__contact .muted { font-size: 0.8125rem; color: var(--ink-3); margin-left: 4px; }
.next-h { margin-top: 48px; }
.steps--mini { grid-template-columns: 1fr; margin-top: 16px; border-top: 1px solid var(--ink); }
.steps--mini li, .steps--mini li + li { padding: 18px 0 18px 56px; border-left: 0; position: relative; }
.steps--mini li + li { border-top: 1px solid var(--line); }
.steps--mini li::before { position: absolute; left: 0; top: 18px; font-size: 1.75rem; margin: 0; }
.steps--mini h3 { margin-bottom: 4px; }
.steps--mini p { font-size: 0.9375rem; }

/* ===== v4: one coherent theme ===== */
/* Subtle tonal steps only: footer and menu feature cards sit on --surface, never on an inverted colour */
.footer { background: var(--surface); border-top: 1px solid var(--line); }
.mega__feat { background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
.mega__feat:hover { border-color: var(--line-2); }
/* Page head building drawing is a light-on-dark line file; invert it on light pages */
.pagehead__aside { filter: invert(var(--art-invert)); }
/* Project renders stand in for photos and keep their own colours */

/* Theme switch inside the phone menu: labelled, full width, large target */
.theme-row { display: none; }
@media (max-width: 1099px) {
  .theme-row {
    display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%;
    margin-top: 24px; min-height: 52px; padding: 0 16px 0 18px; border: 1px solid var(--line-2); border-radius: 999px;
    background: transparent; color: var(--ink); cursor: pointer; font-size: 1rem; font-weight: 600; text-align: left;
  }
  .theme-row:hover { border-color: var(--ink); }
  .theme-row__state { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); }
  .theme-row svg { width: 20px; height: 20px; }
}

/* Phone menu: backdrop-filter on the header makes it the containing block for the fixed menu panel,
   which squashed the panel to a sliver under the page. Drop the blur while the menu is open. */
body.menu-open .header { -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--bg); }
@media (max-width: 1099px) {
  .nav { height: calc(100vh - var(--head)); height: calc(100dvh - var(--head)); }
}
/* Touch screens keep :hover after a tap; only show hover rings where a real pointer hovers */
@media (hover: none) {
  .iconbtn:hover { border-color: transparent; }
  .theme-row:hover { border-color: var(--line-2); }
}

/* ===== v6: one drawing language across the site =====
   Any element with data-sys carries its system colour in --c. Drawings use it for strokes; chrome never does. */
[data-sys="power"] { --c: var(--c-power); }
[data-sys="network"] { --c: var(--c-network); }
[data-sys="climate"] { --c: var(--c-climate); }
[data-sys="lighting"] { --c: var(--c-lighting); }
[data-sys="security"] { --c: var(--c-security); }
[data-sys="bms"] { --c: var(--c-bms); }

/* System key under a drawing: the same swatches as the home page layer legend */
.syskey { list-style: none; padding: 0; margin-top: 10px; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.syskey li { position: relative; padding: 10px 8px 0 0; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink); white-space: nowrap; }
.syskey li::before { content: ""; position: absolute; left: 0; right: 8px; top: -1px; height: 2px; background: var(--c); }
.syskey li::after { content: ""; display: inline-block; width: 12px; height: 3px; border-radius: 2px; background: var(--c); margin-left: 7px; vertical-align: 0.22em; }
@media (max-width: 640px) { .syskey { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 10px; } }

/* Page head with a drawing beside the text (Design Desk) */
.pagehead--art .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); column-gap: clamp(24px, 4vw, 64px); align-items: center; }
.pagehead--art .wrap > * { grid-column: 1; }
.pagehead--art .pagehead__art { grid-column: 2; grid-row: 1 / span 6; align-self: center; min-width: 0; }
.pagehead__art .bld { display: block; width: 100%; height: auto; }
.bld--desk .lbl { opacity: 1; }
.bld--desk .lbl text { font-size: 15px; }
.bld--desk .halo { fill-opacity: var(--b-halo-on); }
.bld--desk .pt, .bld--desk .lamp { fill: var(--b-ink); }
@media (max-width: 1099px) {
  .pagehead--art .wrap { grid-template-columns: minmax(0, 1fr); }
  .pagehead--art .pagehead__art { grid-column: 1; grid-row: auto; margin-top: clamp(32px, 6vw, 56px); max-width: 720px; }
}
@media (max-width: 640px) { .bld--desk .lbl { display: none; } .pagehead__art .bld { width: 128%; margin-left: -14%; } }

/* Product view: devices drawn in their system colour, group headings carry the swatch */
.app .plan .dev[data-sys] { stroke: var(--c); }
.app .plan .dev[data-sys] .fill { fill: var(--c); }
.app .plan .dev[data-sys] .zone { fill: var(--c); fill-opacity: 0.1; }
.app .plan .dev[data-sys] .ring { stroke-opacity: 0.85; }
.app__grp[data-sys]::before, .app__insp h4 span[data-sys]::before { content: ""; display: inline-block; width: 12px; height: 3px; border-radius: 2px; background: var(--c); margin-right: 7px; vertical-align: 0.22em; }
.app__item.is-on svg { color: var(--c-security); }