/* Premium Paints Consulting s.r.o. — technical-sheet look */
:root {
  --brand: #fa3600;
  --ink: #282828;
  --ink-2: #414140;
  --muted: #72726f;
  --line: #b3b3af;
  --soft: #b4b4b0;
  --paper: #f3f3ef;
  --paper-2: #ebebe6;
  --white: #fff;
  --pad: clamp(16px, 3.4vw, 56px);
  --max: 1560px;
  --header-h: 68px;
  --sans: "Inter Tight", "Helvetica Neue", Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 8px); }
body {
  margin: 0;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}
/* paper grain */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .5;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .3  0 0 0 0 .3  0 0 0 0 .28  0 0 0 .09 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
/* sheet frame */
body::after {
  content: "";
  position: fixed; inset: 6px; z-index: 60; pointer-events: none;
  border: 1px solid var(--line);
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p, ul, ol, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
main, header, footer { position: relative; z-index: 1; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }

.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--ink); color: #fff; padding: 8px 14px; font-family: var(--mono); font-size: 12px; }
.skip:focus { left: 16px; }

.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--pad); }
.mono { font-family: var(--mono); text-transform: uppercase; letter-spacing: -0.02em; font-weight: 500; }
.label { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: -0.01em; color: var(--muted); }
.label b { color: var(--brand); font-weight: 500; }

/* ---------- header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 70;
  height: var(--header-h);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; font-size: clamp(16px, 1.55vw, 20px); line-height: 1; letter-spacing: -0.03em; text-transform: uppercase; white-space: nowrap; }
.logo i { width: 17px; height: 17px; background: var(--brand); display: block; flex: none; }
.logo small { font-family: var(--mono); font-weight: 500; font-size: 10px; letter-spacing: 0; color: var(--muted); align-self: flex-end; margin-bottom: 1px; }
.nav { display: flex; align-items: center; gap: clamp(18px, 2.6vw, 40px); }
.nav a.link { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: -0.01em; position: relative; padding: 6px 0; }
.nav a.link::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform .35s ease; }
.nav a.link:hover { color: var(--brand); }
.nav a.link:hover::after { transform: scaleX(1); }
.lang { display: inline-flex; border: 1px solid var(--line); font-family: var(--mono); font-size: 12px; text-transform: uppercase; }
.hd-right { display: flex; align-items: center; gap: clamp(14px, 2vw, 28px); }
.lang a, .lang span { padding: 8px 11px; line-height: 1; }
.lang a:hover { color: var(--brand); }
.lang [aria-current="true"] { background: var(--ink); color: #fff; }

.btn {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: -0.01em;
  padding: 14px 20px; line-height: 1;
  background: var(--brand); color: #fff; border: 1px solid var(--brand);
  cursor: pointer; transition: background .25s ease, color .25s ease, transform .25s ease;
}
.btn svg { width: 14px; height: 14px; flex: none; transition: transform .25s ease; }
.btn:hover { background: #d62f00; border-color: #d62f00; }
.btn:hover svg { transform: translateX(3px); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn.ghost:hover { background: transparent; color: var(--brand); border-color: var(--brand); }
.btn.sm { padding: 10px 14px; }
.btn.lg { padding: 20px 28px; font-size: 14px; }

.burger { display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: transparent; cursor: pointer; position: relative; flex: none; }
.burger span { position: absolute; left: 12px; right: 12px; height: 1.5px; background: var(--ink); transition: transform .3s ease, opacity .2s ease; }
.burger span:nth-child(1) { top: 16px; } .burger span:nth-child(2) { top: 21px; } .burger span:nth-child(3) { top: 26px; }
.menu-open .burger span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.menu-open .burger span:nth-child(2) { opacity: 0; }
.menu-open .burger span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero { padding-top: calc(var(--header-h) + clamp(28px, 6vw, 88px)); }
.hero-top { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: end; }
.hero h1 {
  font-weight: 700; text-transform: uppercase;
  font-size: clamp(2.1rem, 6.4vw, 6.6rem); line-height: .94; letter-spacing: -0.045em;
  max-width: 15ch; margin-top: 18px;
}
.hero h1 em { font-style: normal; color: var(--brand); }
.spec {
  font-family: var(--mono); font-size: 11px; line-height: 1.55; text-transform: uppercase; letter-spacing: -0.01em;
  width: min(100%, 380px); color: var(--ink-2);
}
.spec .head { color: var(--muted); border-bottom: 1px dashed var(--line); padding-bottom: 6px; margin-bottom: 8px; }
.spec div { display: grid; grid-template-columns: 92px 14px 1fr; padding: 2px 0; }
.spec dt { color: var(--muted); }
.hero-lede { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; margin-top: clamp(24px, 3vw, 44px); align-items: end; }
.hero-lede p { max-width: 54ch; font-size: clamp(1rem, 1.35vw, 1.25rem); line-height: 1.45; color: var(--ink-2); }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; }

.figure { position: relative; margin-top: clamp(30px, 4vw, 60px); }
.figure .frame { position: relative; overflow: hidden; background: var(--paper-2); }
.figure img { width: 100%; height: 100%; object-fit: cover; }
.hero .figure .frame { aspect-ratio: 21 / 9; }
.figure .guide { position: absolute; left: calc(var(--pad) * -1); right: calc(var(--pad) * -1); height: 1px; background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform 1.4s cubic-bezier(.2, .7, .2, 1) .2s; }
.figure .guide.t { top: 0; } .figure .guide.b { bottom: 0; }
.in .figure .guide, .figure.in .guide { transform: scaleX(1); }
.figure .tag { color: var(--ink); position: absolute; left: 12px; bottom: 12px; background: var(--paper); padding: 6px 9px; font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; z-index: 2; }
.figure .tag b { color: var(--brand); font-weight: 500; }

.ticker { margin-top: clamp(20px, 3vw, 40px); border-block: 1px solid var(--line); overflow: hidden; }
.ticker ul { display: flex; width: max-content; animation: slide 40s linear infinite; }
.ticker li { font-family: var(--mono); font-size: 12px; text-transform: uppercase; padding: 14px 28px; white-space: nowrap; display: flex; align-items: center; gap: 28px; }
.ticker li::after { content: ""; width: 7px; height: 7px; background: var(--brand); }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
section { padding-block: clamp(64px, 9vw, 144px); }
.sec-head { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--ink); padding-top: 12px; margin-bottom: clamp(28px, 4vw, 64px); }
h2.big { font-size: clamp(1.9rem, 4.6vw, 4.6rem); font-weight: 700; text-transform: uppercase; line-height: .98; letter-spacing: -0.04em; max-width: 18ch; }
h2.big span { color: var(--soft); }

.intro { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; }
.intro .lead { grid-column: 1 / span 7; }
.intro .body { grid-column: 9 / span 4; display: grid; gap: 18px; color: var(--ink-2); align-content: start; padding-top: 10px; }
.facts { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: clamp(28px, 4vw, 56px); border-top: 1px solid var(--line); }
.facts > div { padding: 20px 24px 0 0; }
.facts > div + div { padding-left: 24px; border-left: 1px solid var(--line); }
.facts .n { font-family: var(--mono); font-size: 12px; color: var(--brand); }
.facts h3 { font-size: clamp(1.1rem, 1.7vw, 1.5rem); font-weight: 700; text-transform: uppercase; letter-spacing: -0.03em; line-height: 1.05; margin: 10px 0 8px; }
.facts p { color: var(--muted); font-size: 15px; }

.service { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: center; padding-block: clamp(28px, 4vw, 56px); border-top: 1px solid var(--line); }
.service:last-of-type { border-bottom: 1px solid var(--line); }
.service .media { grid-column: 1 / span 6; }
.service .text { grid-column: 8 / span 5; }
.service.flip .media { grid-column: 7 / span 6; order: 2; }
.service.flip .text { grid-column: 1 / span 5; order: 1; }
.service .media .frame { aspect-ratio: 4 / 3; }
.service.tall .media .frame { aspect-ratio: 4 / 4.4; }
.service .num { font-family: var(--mono); font-size: 13px; color: var(--brand); }
.service h3 { font-size: clamp(1.5rem, 2.9vw, 2.9rem); font-weight: 700; text-transform: uppercase; letter-spacing: -0.04em; line-height: .98; margin: 14px 0 18px; }
.service p { color: var(--ink-2); max-width: 46ch; }
.service ul { margin-top: 22px; border-top: 1px dashed var(--line); }
.service li { font-family: var(--mono); font-size: 12px; text-transform: uppercase; padding: 10px 0; border-bottom: 1px dashed var(--line); display: flex; gap: 12px; }
.service li::before { content: "+"; color: var(--brand); }

/* approach */
.approach { background: var(--ink); color: var(--paper); }
.approach .sec-head { border-color: var(--paper); }
.approach .label { color: var(--soft); }
.approach h2.big span { color: #7d7d79; }
.approach-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: start; }
.approach .figure { grid-column: 1 / span 5; margin-top: 0; }
.approach .figure .frame { aspect-ratio: 4 / 3; }
.approach .figure .frame img { object-position: 38% center; }
.steps { grid-column: 7 / span 6; }
.steps li { display: grid; grid-template-columns: 56px 1fr; gap: 12px; padding: 22px 0; border-top: 1px solid #5a5a58; }
.steps li:last-child { border-bottom: 1px solid #5a5a58; }
.steps .n { font-family: var(--mono); font-size: 12px; color: var(--brand); padding-top: 6px; }
.steps h3 { font-size: clamp(1.25rem, 2.2vw, 2rem); font-weight: 700; text-transform: uppercase; letter-spacing: -0.035em; line-height: 1; }
.steps p { margin-top: 8px; color: #c9c9c4; max-width: 48ch; font-size: 16px; }
.approach .top { margin-bottom: clamp(28px, 4vw, 56px); }

/* contact */
.contact h2.big { max-width: 14ch; }
.contact-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: end; }
.contact-main { grid-column: 1 / span 7; }
.contact-main p { margin-top: 24px; max-width: 46ch; color: var(--ink-2); font-size: clamp(1rem, 1.3vw, 1.2rem); }
.contact-main .cta { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.contact-main .cta a.mail { font-family: var(--mono); font-size: 13px; text-transform: none; color: var(--ink); border-bottom: 1px solid var(--ink); padding-bottom: 2px; word-break: break-all; }
.contact-main .cta a.mail:hover { color: var(--brand); border-color: var(--brand); }
.card { grid-column: 9 / span 4; font-family: var(--mono); font-size: 12px; text-transform: uppercase; border: 1px solid var(--line); padding: 20px; background: color-mix(in srgb, var(--paper) 60%, #fff); }
.card .head { color: var(--muted); border-bottom: 1px dashed var(--line); padding-bottom: 8px; margin-bottom: 8px; }
.card div { display: grid; grid-template-columns: 82px 1fr; gap: 8px; padding: 6px 0; line-height: 1.4; }
.card dt { color: var(--muted); }
.card dd a { cursor: copy; text-transform: none; border-bottom: 1px solid var(--line); word-break: break-all; }

footer { border-top: 1px solid var(--line); padding-block: 28px 40px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer p, footer a { font-family: var(--mono); font-size: 11px; text-transform: uppercase; color: var(--muted); }
footer a:hover { color: var(--brand); }

/* reveal */
.js [data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s cubic-bezier(.2, .7, .2, 1); }
.js [data-reveal].in { opacity: 1; transform: none; }
.js .frame img { transform: scale(1.06); transition: transform 1.6s cubic-bezier(.2, .7, .2, 1); }
.js .in .frame img, .js .frame.in img, .js .figure.in .frame img { transform: scale(1); }

/* ---------- tablet ---------- */
@media (max-width: 1100px) {
  .hero-top { grid-template-columns: 1fr; }
  .spec { width: 100%; max-width: 420px; }
  .intro .lead { grid-column: 1 / -1; }
  .intro .body { grid-column: 1 / span 9; }
  .service .media, .service.flip .media { grid-column: 1 / span 6; }
  .service .text, .service.flip .text { grid-column: 7 / span 6; order: 2; }
  .service.flip .media { order: 1; }
  .approach .figure { grid-column: 1 / span 6; }
  .steps { grid-column: 7 / span 6; }
  .contact-main { grid-column: 1 / -1; }
  .card { grid-column: 1 / span 8; }
  .hero .figure .frame { aspect-ratio: 16 / 8; }
}
@media (max-width: 1080px) {
  .burger { display: block; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 8px var(--pad) 24px; max-height: calc(100dvh - var(--header-h)); overflow: auto;
    transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .25s ease, transform .25s ease, visibility .25s;
  }
  .menu-open .nav { transform: none; opacity: 1; visibility: visible; }
  .nav a.link { font-size: 15px; padding: 18px 0; border-bottom: 1px solid var(--line); }
  .nav a.link::after { display: none; }
  .nav .btn { margin-top: 14px; justify-content: space-between; }
  .site-header .wrap { gap: 12px; }
}
/* ---------- phone ---------- */
@media (max-width: 720px) {
  body { font-size: 16px; }
  body::after { inset: 4px; }
  :root { --header-h: 60px; }
  .hero-lede { grid-template-columns: 1fr; }
  .hero h1 { max-width: none; }
  .hero .figure .frame { aspect-ratio: 4 / 3; }
  .hero .figure .frame img { object-position: 36% center; }
  .cta-row .btn { flex: 1 1 100%; justify-content: space-between; }
  .intro .body { grid-column: 1 / -1; }
  .facts { grid-template-columns: 1fr; }
  .facts > div, .facts > div + div { padding: 18px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .service, .service.flip { gap: 20px; }
  .service .media, .service.flip .media, .service .text, .service.flip .text { grid-column: 1 / -1; order: initial; }
  .service.tall .media .frame { aspect-ratio: 4 / 4.6; }
  .approach .figure, .steps { grid-column: 1 / -1; }
  .steps li { grid-template-columns: 40px 1fr; }
  .card { grid-column: 1 / -1; }
  .contact-main .cta .btn { width: 100%; justify-content: space-between; }
  .sec-head .label:last-child { text-align: right; }
  .logo small { display: none; }
  .logo { font-size: 14.5px; gap: 10px; }
  .logo .ln { line-height: 1.02; }
  .logo .ln span { display: block; }
}
@media (max-width: 380px) { .lang a, .lang span { padding: 8px 9px; } .logo { font-size: 13px; } .logo i { width: 12px; height: 12px; } .hd-right { gap: 10px; } }

/* ---------- intro loader ---------- */
.loader { display: none; }
.has-loader .loader {
  display: block; position: fixed; inset: 0; z-index: 200; background: var(--paper); color: var(--ink);
  transition: transform 1s cubic-bezier(.76, 0, .24, 1);
  animation: ld-fail .5s ease 6s forwards;
}
.has-loader.ld-out .loader { transform: translateY(-100%); }
@keyframes ld-fail { to { opacity: 0; visibility: hidden; } }
.ld-line { position: absolute; left: 0; right: 0; top: 56%; height: 1px; background: var(--line); }
.ld-line i { position: absolute; left: 0; top: -1px; height: 2px; width: var(--p, 0%); background: var(--brand); }
.ld-pct { position: absolute; left: var(--p, 0%); bottom: 12px; transform: translateX(-100%); padding-right: 10px; font-family: var(--mono); font-size: 13px; color: var(--brand); font-variant-numeric: tabular-nums; }
.ld-brand { position: absolute; left: var(--pad); bottom: var(--pad); max-width: 11em; font-weight: 700; text-transform: uppercase; letter-spacing: -0.04em; line-height: .95; font-size: clamp(1.4rem, 3.2vw, 2.9rem); }
.ld-info { position: absolute; right: var(--pad); bottom: var(--pad); width: min(340px, 46vw); font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; line-height: 1.5; color: var(--ink-2); }
.ld-head { color: var(--muted); border-bottom: 1px dashed var(--line); padding-bottom: 6px; margin-bottom: 8px; }
.ld-info dl > div { display: grid; grid-template-columns: 64px 14px 1fr; }
.ld-info dt { color: var(--muted); }
.ld-steps { margin-top: 14px; counter-reset: s; }
.ld-steps li { counter-increment: s; color: var(--soft); transition: color .3s; }
.ld-steps li::before { content: "00" counter(s) "  "; white-space: pre; }
.ld-steps li.on { color: var(--ink); }
.ld-skip { position: absolute; top: calc(var(--pad) * .6 + 8px); right: var(--pad); font-family: var(--mono); font-size: 11px; text-transform: uppercase; background: none; border: 0; border-bottom: 1px solid var(--line); color: var(--muted); cursor: pointer; padding: 4px 0; }
.ld-skip:hover { color: var(--brand); border-color: var(--brand); }

/* ---------- header progress + hero entrance ---------- */
.progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--brand); transform: scaleX(0); transform-origin: left; pointer-events: none; }
.js .hero [data-hero] { opacity: 0; transform: translateY(28px); animation: show 0s 7s forwards; }
.ready .hero [data-hero] { opacity: 1; transform: none; transition: opacity .9s ease calc(var(--i) * .1s), transform 1s cubic-bezier(.2, .7, .2, 1) calc(var(--i) * .1s); animation: none; }
@keyframes show { to { opacity: 1; transform: none; } }

/* ---------- coating system drawing ---------- */
.system { padding-top: clamp(56px, 7vw, 112px); padding-bottom: clamp(48px, 6vw, 96px); }
.system h2.big { margin-bottom: clamp(24px, 3.5vw, 56px); }
.system-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: stretch; }
.bp-wrap { grid-column: 1 / span 8; position: relative; border: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 55%, #fff); overflow: hidden; cursor: crosshair; }
.bp { display: block; width: 100%; height: auto; }
.bp .guide { stroke: var(--brand); stroke-width: 1.2; }
.bp .draw { stroke-dasharray: 1; stroke-dashoffset: 0; }
.js .bp:not(.go) .draw { stroke-dashoffset: 1; }
.bp.go .draw { animation: draw 1.6s cubic-bezier(.5, 0, .2, 1) var(--d, 0s) both; }
@keyframes draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
.bp .layer { transition: opacity .35s ease; }
.bp[data-active] .layer:not(.on) { opacity: .22; }
.bp .layer.on rect:not([fill="none"]):nth-child(1) { filter: none; }
.bp .pt { fill: var(--brand); opacity: 0; animation: drop 1.1s linear var(--dl, 0s) infinite; }
@keyframes drop { 0% { transform: translate(0, 0); opacity: 0; } 12% { opacity: 1; } 100% { transform: translate(var(--dx), 222px); opacity: 0; } }
.bp .anno { transition: opacity .6s ease; }
.js .bp:not(.painted) .anno { opacity: 0; pointer-events: none; }
.bp .mk { cursor: pointer; outline: none; }
.bp .mk circle { fill: var(--paper); stroke: var(--ink); stroke-width: 1.4; transition: fill .25s, stroke .25s; }
.bp .mk text { font-family: var(--mono); font-size: 17px; font-weight: 500; fill: var(--ink); pointer-events: none; transition: fill .25s; }
.bp .mk .ld { stroke: var(--ink); stroke-width: 1; transition: stroke .25s; }
.bp .mk:hover circle, .bp .mk:focus-visible circle { stroke: var(--brand); }
.bp .mk.on circle { fill: var(--brand); stroke: var(--brand); }
.bp .mk.on text { fill: #fff; }
.bp .mk.on .ld { stroke: var(--brand); }
.xh { position: absolute; pointer-events: none; background: var(--brand); opacity: 0; transition: opacity .2s; z-index: 2; }
.xh-x { left: 0; right: 0; height: 1px; top: 0; }
.xh-y { top: 0; bottom: 0; width: 1px; left: 0; }
.xh-read { position: absolute; left: 0; top: 0; z-index: 3; opacity: 0; pointer-events: none; font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; color: var(--brand); background: var(--paper); padding: 2px 6px; transition: opacity .2s; white-space: nowrap; }
.bp-wrap.xh-on .xh, .bp-wrap.xh-on .xh-read { opacity: 1; }
.bp-cap { display: flex; justify-content: space-between; gap: 12px; padding: 12px 14px; border-top: 1px dashed var(--line); }
.legend { grid-column: 9 / span 4; display: grid; align-content: stretch; border-top: 1px solid var(--line); }
.legend li { border-bottom: 1px solid var(--line); }
.lgd { all: unset; box-sizing: border-box; display: grid; grid-template-columns: 38px 1fr; gap: 2px 8px; width: 100%; height: 100%; padding: 18px 8px 18px 0; cursor: pointer; transition: background .25s, padding .25s; }
.lgd:focus-visible { outline: 2px solid var(--brand); outline-offset: -2px; }
.lgd .n { font-family: var(--mono); font-size: 12px; color: var(--muted); padding-top: 4px; grid-row: 1 / span 2; transition: color .25s; }
.lgd .t { font-size: clamp(1.15rem, 1.7vw, 1.5rem); font-weight: 700; text-transform: uppercase; letter-spacing: -0.035em; line-height: 1.05; }
.lgd .d { color: var(--muted); font-size: 15px; line-height: 1.4; max-height: 0; opacity: 0; overflow: hidden; transition: max-height .4s ease, opacity .4s ease; }
.lgd.on { padding-left: 12px; }
.lgd.on .n { color: var(--brand); }
.lgd.on .d { max-height: 6em; opacity: 1; margin-top: 4px; }
.lgd:hover .n { color: var(--brand); }
@media (hover: none) { .bp-wrap { cursor: default; } .bp-hint { display: none; } }
@media (max-width: 1100px) {
  .bp-wrap, .legend { grid-column: 1 / -1; }
  .legend { grid-template-columns: 1fr 1fr; column-gap: 24px; border-top: 0; }
  .legend li:nth-child(-n+2) { border-top: 1px solid var(--line); }
}
@media (max-width: 720px) {
  .legend { grid-template-columns: 1fr; }
  .legend li:nth-child(2) { border-top: 0; }
  .lgd .d { max-height: none; opacity: 1; margin-top: 4px; }
  .bp-cap { flex-direction: column; gap: 4px; }
  .bp .mk text { font-size: 20px; }
  .ld-brand { bottom: auto; top: 22%; font-size: 1.7rem; }
  .ld-info { width: calc(100% - var(--pad) * 2); }
}

@media (prefers-reduced-motion: reduce) {
  .bp .pt { animation: none; opacity: 0; }
  .bp.go .draw { animation: none; }
  .js .hero [data-hero] { opacity: 1; transform: none; }
  .progress { display: none; }
  html { scroll-behavior: auto; }
  .ticker ul { animation: none; }
  .js [data-reveal], .js .frame img { opacity: 1; transform: none; transition: none; }
  .figure .guide { transform: scaleX(1); transition: none; }
}

/* ---------- illustrations ---------- */
.frame svg.art { display: block; width: 100%; height: 100%; }
.facts .ico { display: block; margin-bottom: 14px; }
.art .pt { fill: var(--brand); opacity: 0; animation: pt 1.5s linear var(--dl, 0s) infinite; }
@keyframes pt { 0% { transform: translate(0, 0); opacity: 0; } 15% { opacity: 1; } 100% { transform: translate(var(--tx), var(--ty)); opacity: 0; } }
.art .sprayer { animation: spray 7s ease-in-out infinite; }
@keyframes spray { 0% { transform: translateY(0); opacity: 1; } 70%, 88% { transform: translateY(360px); opacity: 1; } 96% { transform: translateY(360px); opacity: 0; } 99.9% { transform: translateY(0); opacity: 0; } 100% { transform: translateY(0); opacity: 1; } }
.art .coat { transform-box: fill-box; transform-origin: 50% 0; animation: coat 7s ease-in-out infinite; }
@keyframes coat { 0% { transform: scaleY(0); opacity: 1; } 70%, 88% { transform: scaleY(1); opacity: 1; } 96% { transform: scaleY(1); opacity: 0; } 100% { transform: scaleY(0); opacity: 0; } }
.art .conv { animation: conv 5s linear infinite; }
@keyframes conv { to { transform: translateX(240px); } }
.art .heat { animation: heat 2.6s ease-in var(--dl, 0s) infinite; }
@keyframes heat { 0% { transform: translateY(0); opacity: 0; } 20% { opacity: .9; } 100% { transform: translateY(-70px); opacity: 0; } }
.art .chk { stroke-dasharray: 1; stroke-dashoffset: 1; animation: tick 6s ease var(--dl, 0s) infinite; }
@keyframes tick { 0% { stroke-dashoffset: 1; } 10%, 80% { stroke-dashoffset: 0; } 92%, 100% { stroke-dashoffset: 1; } }
.art .probe { animation: probe 2.6s ease-in-out infinite alternate; }
@keyframes probe { to { transform: translateY(-9px); } }
.art .flow { animation: flow 1.2s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -22; } }
.art .trend { stroke-dasharray: 1; stroke-dashoffset: 1; animation: trend 6s ease-in-out infinite; }
@keyframes trend { 0% { stroke-dashoffset: 1; } 55%, 88% { stroke-dashoffset: 0; } 100% { stroke-dashoffset: 1; } }
.art .bar { transform-box: fill-box; transform-origin: 50% 100%; animation: bar 2.4s ease-in-out var(--dl, 0s) infinite alternate; }
@keyframes bar { from { transform: scaleY(.45); } to { transform: scaleY(1); } }
.art .truck { animation: bump .5s ease-in-out infinite alternate; }
@keyframes bump { to { transform: translateY(-3px); } }
.art .spin { transform-box: fill-box; transform-origin: center; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.art .road { animation: road 1s linear infinite; }
@keyframes road { to { stroke-dashoffset: 48; } }
.art .cell, .art .node > circle:first-child { stroke: var(--line); stroke-width: 1.4; animation: cell 6s ease-in-out var(--dl, 0s) infinite; }
.art .node > circle:first-child { stroke: var(--ink); stroke-width: 1.8; animation-duration: 5.6s; }
@keyframes cell { 0% { stroke: #b3b3af; stroke-width: 1.4; } 6%, 22% { stroke: #fa3600; stroke-width: 2.6; } 30%, 100% { stroke: #b3b3af; stroke-width: 1.4; } }
.art .orbit { transform-origin: 400px 300px; animation: spin 50s linear infinite; }
.art .nt { font-family: var(--mono); font-size: 13px; font-weight: 500; fill: #fff; }
.art .ct { font-family: var(--sans); font-size: 26px; font-weight: 700; fill: #fff; letter-spacing: -0.02em; }
.art .cs { font-family: var(--mono); font-size: 12px; fill: var(--soft); }
.js .figure:not(.in) .art * { animation-play-state: paused; }

/* ---------- e-mail chooser ---------- */
.mailbox { position: fixed; margin: auto; border: 1px solid var(--ink); background: var(--paper); color: var(--ink); padding: 30px 28px 26px; width: min(480px, calc(100vw - 32px)); box-shadow: 8px 8px 0 var(--brand); }
.mailbox::backdrop { background: rgba(40, 40, 40, .55); backdrop-filter: blur(2px); }
.mailbox h2 { font-size: clamp(1.9rem, 4.4vw, 2.6rem); font-weight: 700; text-transform: uppercase; letter-spacing: -0.04em; line-height: 1; margin: 12px 0 10px; }
.mb-sub { color: var(--ink-2); margin-bottom: 20px; }
.mb-x { position: absolute; top: 10px; right: 10px; width: 38px; height: 38px; border: 1px solid var(--line); background: transparent; font-size: 24px; line-height: 1; cursor: pointer; color: var(--ink); }
.mb-x:hover { color: var(--brand); border-color: var(--brand); }
.mb-opts { display: grid; gap: 8px; }
.mb-opt { all: unset; box-sizing: border-box; display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; padding: 17px 16px; border: 1px solid var(--ink); color: var(--ink); font-family: var(--mono); font-size: 12.5px; text-transform: uppercase; cursor: pointer; transition: background .2s, color .2s, border-color .2s; }
.mb-opt svg { width: 14px; height: 14px; flex: none; }
.mb-opt:hover, .mb-opt:focus-visible { background: var(--brand); border-color: var(--brand); color: #fff; }
.mb-opt.done { background: var(--ink); border-color: var(--ink); color: #fff; }
.mb-note { font-family: var(--mono); font-size: 11px; text-transform: uppercase; color: var(--muted); margin-top: 16px; }
.toast { position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 20px); z-index: 300; background: var(--ink); color: #fff; font-family: var(--mono); font-size: 12px; text-transform: uppercase; padding: 13px 18px; opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s; max-width: calc(100vw - 32px); text-align: center; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* lab scene */
.art .liq { animation: wave 2.4s linear infinite; }
.art .liq2 { animation: wave 3.6s linear infinite reverse; }
@keyframes wave { to { transform: translateX(-48px); } }
.art .liq3 { animation: wave60 2.6s linear infinite; }
@keyframes wave60 { to { transform: translateX(-60px); } }
.art .rod { transform-origin: 730px 296px; animation: rod 2.2s ease-in-out infinite alternate; }
@keyframes rod { from { transform: rotate(-9deg); } to { transform: rotate(9deg); } }
.art .drop { opacity: 0; animation: dropfall 1.8s ease-in var(--dl, 0s) infinite; }
@keyframes dropfall { 0% { transform: translateY(0); opacity: 0; } 8% { opacity: 1; } 70% { transform: translateY(140px); opacity: 1; } 75%, 100% { transform: translateY(144px); opacity: 0; } }
.art .ripple { transform-box: fill-box; transform-origin: center; opacity: 0; animation: ripple 1.8s ease-out 1.26s infinite; }
@keyframes ripple { 0% { transform: scale(.4); opacity: .9; } 100% { transform: scale(1.8); opacity: 0; } }
.art .fan { animation: sway 4s ease-in-out infinite alternate; }
@keyframes sway { from { transform: rotate(-2.5deg); } to { transform: rotate(2.5deg); } }
.art .sq { animation: sqp 3.2s ease-in-out var(--dl, 0s) infinite; }
@keyframes sqp { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
.art .paddle { transform-box: fill-box; transform-origin: center; animation: pad 1s ease-in-out infinite alternate; }
@keyframes pad { from { transform: scaleX(1); } to { transform: scaleX(.12); } }
.art .bx { transform-box: fill-box; transform-origin: left center; animation: bx 3.2s ease-in-out var(--dl, 0s) infinite alternate; }
@keyframes bx { from { transform: scaleX(.55); } to { transform: scaleX(1); } }
.art .nd { font-family: var(--mono); font-size: 15px; font-weight: 500; fill: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  .art * { animation: none !important; }
  .art .chk, .art .trend { stroke-dashoffset: 0; }
  .art .pt { display: none; }
  .art .coat { transform: none; }
}
.mailbox .label { text-transform: none; }
.service .figure .tag { display: none; }