@font-face { font-family: "Museo Sans"; src: url("assets/fonts/MuseoSansCyrl-300.woff") format("woff"); font-weight: 300; font-display: swap; }
@font-face { font-family: "Museo Sans"; src: url("assets/fonts/MuseoSansCyrl-500.woff") format("woff"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Museo Sans"; src: url("assets/fonts/MuseoSansCyrl-700.woff") format("woff"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Museo Sans"; src: url("assets/fonts/MuseoSansCyrl-900.woff") format("woff"); font-weight: 900; font-display: swap; }

:root {
  --ink: #101113;
  --ink-2: #181a1d;
  --ink-3: #24272a;
  --paper: #f3f2ee;
  --paper-2: #e7e5df;
  --white: #fff;
  --muted: #747779;
  --line: rgba(16, 17, 19, .16);
  --line-dark: rgba(255, 255, 255, .16);
  --red: #f34839;
  --red-deep: #c92f25;
  --air: #55d3cc;
  --gold: #c7a879;
  --header-h: 76px;
  --max: 1440px;
  --pad: max(24px, calc((100vw - var(--max)) / 2));
  --mx: 50%;
  --my: 44%;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: calc(var(--header-h) + 12px); }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  font-family: "Museo Sans", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 120;
  pointer-events: none;
  opacity: .024;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.95' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font-family: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--air); outline-offset: 3px; }
.skip-link { position: fixed; top: -90px; left: 18px; z-index: 200; background: #fff; color: #000; padding: 12px 18px; }
.skip-link:focus { top: 18px; }

.page-progress { position: fixed; z-index: 110; left: 0; right: 0; top: 0; height: 3px; background: transparent; pointer-events: none; }
.page-progress span { display: block; width: 100%; height: 100%; background: linear-gradient(90deg, var(--red), var(--air)); transform: scaleX(0); transform-origin: left; }
.airflow-journey { position: fixed; z-index: 92; inset: var(--header-h) 0 0; pointer-events: none; opacity: 0; transition: opacity .65s ease; overflow: hidden; }
.airflow-journey.is-active { opacity: 1; }
.airflow-journey svg { width: 100%; height: 100%; overflow: visible; }
.airflow-path { fill: none; stroke-width: 1.4; vector-effect: non-scaling-stroke; stroke-linecap: round; stroke-dasharray: 4 13; opacity: .34; }
.airflow-path--supply { stroke: var(--air); filter: drop-shadow(0 0 5px rgba(85,211,204,.62)); }
.airflow-path--exhaust { stroke: var(--red); filter: drop-shadow(0 0 5px rgba(243,72,57,.5)); }
.airflow-particles circle { vector-effect: non-scaling-stroke; }
.airflow-particles--supply circle { fill: var(--air); filter: drop-shadow(0 0 8px rgba(85,211,204,.9)); }
.airflow-particles--exhaust circle { fill: var(--red); filter: drop-shadow(0 0 8px rgba(243,72,57,.8)); }
.airflow-particles circle:nth-child(2) { opacity: .72; }
.airflow-particles circle:nth-child(3) { opacity: .48; }
.airflow-label { position: absolute; z-index: 2; top: 48%; padding: 9px 5px; border: 1px solid rgba(16,17,19,.16); color: var(--ink); background: rgba(255,255,255,.68); backdrop-filter: blur(8px); writing-mode: vertical-rl; text-transform: uppercase; letter-spacing: .09em; font-size: .57rem; font-weight: 900; }
.airflow-label--supply { left: 14px; color: #167b77; }
.airflow-label--exhaust { right: 14px; color: var(--red-deep); transform: rotate(180deg); }
html:not(.js) .airflow-journey { display: none; }

.site-header {
  height: var(--header-h);
  padding: 5px var(--pad);
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: clamp(20px, 3vw, 48px);
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  color: #fff;
  background: rgba(16, 17, 19, .92);
  border-bottom: 1px solid var(--line-dark);
  backdrop-filter: blur(16px) saturate(130%);
}
.brand { width: 214px; height: 58px; display: inline-flex; align-items: center; gap: 8px; flex: none; overflow: hidden; text-decoration: none; }
.brand-symbol { width: 58px; height: 36px; display: block; flex: none; background: url("assets/logo.png") left top / 154px 65px no-repeat; }
.brand-name { display: flex; flex-direction: column; justify-content: center; color: #fff; text-transform: uppercase; line-height: .84; letter-spacing: -.045em; white-space: nowrap; }
.brand-name b { font-size: 1.24rem; font-weight: 300; }
.brand-name b:last-child { margin-top: 6px; font-size: 1.16rem; letter-spacing: -.065em; }
.nav { display: flex; justify-content: center; gap: clamp(16px, 2vw, 32px); }
.nav a { text-decoration: none; color: #b4b6b7; font-size: .78rem; transition: color .2s ease; white-space: nowrap; }
.nav a:hover, .nav a:focus-visible { color: #fff; }
.header-contact { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.2; }
.header-contact span { color: #808385; font-size: .68rem; }
.header-contact a { text-decoration: none; font-weight: 900; font-size: .9rem; }

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid transparent;
  text-decoration: none;
  color: inherit;
  font-weight: 900;
  font-size: .82rem;
  letter-spacing: .02em;
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
}
.button::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 25%, rgba(255,255,255,.22), transparent 75%); transform: translateX(-120%); transition: transform .55s ease; }
.button:hover::after { transform: translateX(120%); }
.button:hover { transform: translateY(-2px); }
.button--small { min-height: 42px; padding-inline: 18px; }
.button--outline { border-color: rgba(255,255,255,.38); color: #fff; }
.button--outline:hover { background: #fff; color: var(--ink); }
.button--accent { background: var(--red); color: #fff; }
.button--accent:hover { background: var(--red-deep); }
.button--dark { background: var(--ink); color: #fff; }

.hero {
  height: calc(100svh - var(--header-h));
  min-height: 620px;
  max-height: 980px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(440px, .92fr);
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #fff;
}
.hero-copy {
  min-width: 0;
  padding: clamp(38px, 5.2vh, 64px) clamp(32px, 4.8vw, 84px) clamp(26px, 4vh, 48px) var(--pad);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 4;
  overflow: hidden;
}
.hero-copy::after { content: ""; position: absolute; width: 420px; aspect-ratio: 1; left: -250px; bottom: -250px; border: 1px solid rgba(85,211,204,.16); border-radius: 50%; box-shadow: 0 0 80px rgba(85,211,204,.06); }
.eyebrow, .section-kicker { margin: 0 0 20px; text-transform: uppercase; letter-spacing: .14em; font-size: .7rem; font-weight: 900; }
.eyebrow { color: #a5a8aa; display: flex; gap: 12px; align-items: center; }
.eyebrow span { width: 32px; height: 3px; background: var(--red); flex: none; }
.section-kicker { color: #7c7f81; }
h1, h2, h3, p { overflow-wrap: normal; }
h1, h2 { margin: 0; font-weight: 900; letter-spacing: -.055em; line-height: .94; text-wrap: balance; }
.hero-title { font-size: clamp(3.25rem, 5.45vw, 6.4rem); max-width: 900px; }
.hero-line { display: block; opacity: 0; transform: translateY(110%); animation: line-in .85s cubic-bezier(.2,.8,.2,1) forwards; }
.hero-line:nth-child(2) { animation-delay: .12s; }
.hero-line:nth-child(3) { animation-delay: .24s; }
.hero-line--accent { color: var(--red); }
@keyframes line-in { to { opacity: 1; transform: translateY(0); } }
.reveal-item { opacity: 0; transform: translateY(16px); animation: soft-in .65s ease .38s forwards; }
.hero-lead { max-width: 680px; margin: clamp(18px, 3vh, 30px) 0 0; color: #b6b8b9; font-size: clamp(.96rem, 1.2vw, 1.15rem); line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; margin-top: clamp(22px, 3.5vh, 36px); animation-delay: .48s; }
.text-link { text-decoration: none; font-size: .82rem; font-weight: 900; }
.text-link span { color: var(--red); margin-left: 8px; font-size: 1.05rem; }
.text-link--dark { display: inline-flex; width: max-content; margin-top: 28px; border-bottom: 1px solid currentColor; padding-bottom: 5px; }
.hero-proof { list-style: none; padding: 0; margin: auto 0 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-dark); animation-delay: .58s; }
.hero-proof li { padding: 18px 14px 0 0; min-width: 0; }
.hero-proof li + li { padding-left: 14px; border-left: 1px solid var(--line-dark); }
.hero-proof strong { display: block; font-size: .88rem; white-space: nowrap; }
.hero-proof li > span { display: block; color: #737678; font-size: .68rem; margin-top: 3px; }

.hero-media { position: relative; min-width: 0; overflow: hidden; border-left: 1px solid var(--line-dark); background: #222; }
.hero-media > img { width: 100%; height: 108%; object-fit: cover; object-position: 50% 48%; transform: translateY(var(--parallax-y, -2%)) scale(1.04); animation: hero-zoom 9s ease-out both; }
@keyframes hero-zoom { from { transform: translateY(var(--parallax-y, -2%)) scale(1.1); } to { transform: translateY(var(--parallax-y, -2%)) scale(1.04); } }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(16,17,19,.58), transparent 34%), linear-gradient(180deg, transparent 48%, rgba(7,8,9,.74)); }
.hero-spotlight { position: absolute; inset: 0; background: radial-gradient(380px circle at var(--mx) var(--my), rgba(85,211,204,.16), transparent 68%); mix-blend-mode: screen; pointer-events: none; }
.hero-caption { position: absolute; left: 28px; bottom: 28px; z-index: 3; display: flex; flex-direction: column; max-width: 330px; }
.hero-caption span { color: var(--air); text-transform: uppercase; letter-spacing: .12em; font-size: .66rem; font-weight: 900; }
.hero-caption strong { font-size: 1rem; margin-top: 5px; }
.hero-seal { position: absolute; z-index: 4; right: 24px; top: 24px; width: 114px; aspect-ratio: 1; border: 1px solid rgba(255,255,255,.65); border-radius: 50%; display: flex; align-items: center; justify-content: center; gap: 7px; color: #fff; backdrop-filter: blur(8px); background: rgba(16,17,19,.15); animation: seal-float 4.5s ease-in-out infinite; }
.hero-seal span { font-size: 2rem; font-weight: 900; letter-spacing: -.06em; }
.hero-seal small { font-size: .56rem; line-height: 1.1; text-transform: uppercase; }
@keyframes seal-float { 50% { transform: translateY(6px); } }
.air-trace { position: absolute; z-index: 2; left: 7%; right: 8%; top: 58%; height: 80px; transform: rotate(-8deg); }
.air-trace i { display: block; height: 1px; margin: 16px 0; background: linear-gradient(90deg, transparent, rgba(85,211,204,.7), transparent); transform: scaleX(.15); transform-origin: left; animation: air-run 4s ease-in-out infinite; }
.air-trace i:nth-child(2) { animation-delay: .6s; margin-left: 10%; }
.air-trace i:nth-child(3) { animation-delay: 1.2s; margin-left: 18%; }
@keyframes air-run { 0%,100% { transform: scaleX(.12); opacity: .15; } 50% { transform: scaleX(1); opacity: .8; } }
.scroll-cue { position: absolute; z-index: 7; left: 50%; bottom: 18px; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; color: rgba(255,255,255,.6); text-decoration: none; text-transform: uppercase; letter-spacing: .12em; font-size: .58rem; }
.scroll-cue span { width: 1px; height: 28px; margin-bottom: 6px; background: linear-gradient(180deg, var(--red), transparent); animation: scroll-pulse 1.8s ease-in-out infinite; }
@keyframes scroll-pulse { 50% { height: 42px; } }
@keyframes soft-in { to { opacity: 1; transform: none; } }

.section { padding: clamp(62px, 7.2vh, 92px) var(--pad); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr); gap: clamp(32px, 5vw, 72px); align-items: end; margin-bottom: clamp(34px, 4.2vh, 52px); }
h2 { max-width: 1020px; font-size: clamp(2.8rem, 4.75vw, 5.35rem); }
h2 em { color: var(--red); font-style: normal; }
.section-heading > p { margin: 0 0 6px; color: #5f6264; font-size: 1.02rem; line-height: 1.65; }

.entry { background: #fff; overflow: hidden; }
.entry-heading { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .55fr); column-gap: clamp(40px, 7vw, 104px); align-items: end; margin-bottom: clamp(30px, 4vh, 46px); }
.entry-heading .section-kicker { grid-column: 1 / -1; }
.entry-heading h2 { font-size: clamp(2.75rem, 4.55vw, 5.15rem); }
.entry-heading > p:last-child { margin: 0 0 6px; color: #65686a; font-size: 1rem; line-height: 1.65; }
.entry-workspace { display: grid; grid-template-columns: minmax(330px, .72fr) minmax(480px, 1.28fr); border: 1px solid var(--line); min-height: 500px; box-shadow: 0 30px 90px rgba(16,17,19,.08); }
.entry-tabs { display: flex; flex-direction: column; background: var(--paper); border-right: 1px solid var(--line); }
.entry-tab { flex: 1; min-height: 140px; padding: 24px 28px; display: grid; grid-template-columns: 1fr; grid-template-rows: auto auto; align-content: center; text-align: left; border: 0; border-bottom: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; transition: background .28s ease, color .28s ease, padding .28s ease; }
.entry-tab:last-child { border-bottom: 0; }
.entry-tab strong { font-size: clamp(1.1rem, 1.5vw, 1.45rem); line-height: 1.12; }
.entry-tab small { margin-top: 7px; color: #707375; font-size: .82rem; line-height: 1.4; }
.entry-tab:hover, .entry-tab:focus-visible { padding-left: 38px; outline: none; }
.entry-tab.is-active { background: var(--ink); color: #fff; }
.entry-tab.is-active small { color: #989b9d; }
.entry-result { position: relative; overflow: hidden; padding: clamp(34px, 4.2vw, 62px); display: flex; flex-direction: column; justify-content: center; background: #fff; }
.entry-result::before { content: ""; position: absolute; right: -13%; bottom: -48%; width: 67%; aspect-ratio: 1; border: 1px solid rgba(243,72,57,.18); border-radius: 50%; box-shadow: 0 0 0 55px rgba(243,72,57,.025), 0 0 0 110px rgba(85,211,204,.025); pointer-events: none; }
.entry-result-top { display: flex; justify-content: space-between; align-items: flex-start; position: relative; }
.entry-route-label { color: var(--red); text-transform: uppercase; letter-spacing: .12em; font-size: .74rem; font-weight: 900; }
.entry-result h3 { max-width: 790px; margin: 22px 0 14px; font-size: clamp(1.9rem, 3.25vw, 3.75rem); line-height: .98; letter-spacing: -.05em; text-wrap: balance; position: relative; }
.entry-result > p { max-width: 720px; margin: 0; color: #65686a; font-size: 1rem; line-height: 1.65; position: relative; }
.entry-result ul { list-style: none; padding: 0; margin: 24px 0; max-width: 740px; position: relative; }
.entry-result li { padding: 13px 0 13px 28px; border-top: 1px solid var(--line); font-size: .9rem; position: relative; }
.entry-result li::before { content: ""; position: absolute; left: 0; top: 20px; width: 9px; height: 9px; border: 2px solid var(--red); border-radius: 50%; }
.entry-result .button { align-self: flex-start; position: relative; }
.entry-result.is-changing > :not(.entry-result-top) { animation: route-change .38s ease both; }
@keyframes route-change { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.consequences { display: grid; grid-template-columns: minmax(300px, .72fr) minmax(600px, 1.28fr); gap: clamp(42px, 6vw, 88px); background: var(--paper); align-items: start; }
.sticky-copy { position: sticky; top: calc(var(--header-h) + 45px); }
.sticky-copy h2 { font-size: clamp(2.65rem, 4.2vw, 4.8rem); }
.sticky-copy > p:not(.section-kicker) { color: #646769; max-width: 590px; font-size: 1.04rem; line-height: 1.68; }
.consequence-visual { position: relative; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.air-model { grid-column: 1 / -1; margin: 0; padding: 28px; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(260px, .92fr); grid-template-rows: auto 1fr auto; gap: 22px 30px; background: var(--ink); color: #fff; position: relative; z-index: 2; overflow: hidden; box-shadow: 0 28px 65px rgba(16,17,19,.15); }
.air-model::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 76% 18%, rgba(85,211,204,.12), transparent 34%), linear-gradient(135deg, transparent 60%, rgba(243,72,57,.07)); pointer-events: none; }
.air-model-head { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr minmax(180px, .45fr); gap: 24px; align-items: start; position: relative; }
.air-model-head span { color: var(--air); text-transform: uppercase; letter-spacing: .1em; font-size: .72rem; font-weight: 900; }
.air-model-head h3 { margin: 9px 0 0; max-width: 560px; font-size: clamp(1.65rem, 2.35vw, 2.7rem); line-height: 1; letter-spacing: -.045em; }
.air-model-head small { color: #7f8385; font-size: .72rem; line-height: 1.45; }
.room-schematic { grid-column: 1; grid-row: 2 / 4; height: 290px; margin: 0; position: relative; border: 1px solid rgba(255,255,255,.2); border-top: 0; background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.005)); overflow: hidden; }
.room-schematic::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; background: linear-gradient(90deg, var(--air), rgba(255,255,255,.2) 35%, rgba(255,255,255,.2) 65%, var(--red)); }
.room-window { position: absolute; right: 8%; top: 14%; width: 82px; height: 112px; border: 4px solid #e9e5dc; box-shadow: inset 0 0 0 1px rgba(16,17,19,.3); background: linear-gradient(160deg, #39505c, #162027); }
.room-window::before, .room-window::after { content: ""; position: absolute; background: rgba(255,255,255,.55); }
.room-window::before { width: 2px; top: 0; bottom: 0; left: 50%; }
.room-window::after { height: 2px; left: 0; right: 0; top: 54%; }
.room-window i { position: absolute; z-index: 2; top: 8px; width: 3px; height: 15px; border-radius: 8px; background: var(--air); opacity: 0; transition: opacity .4s ease, transform .4s ease; }
.room-window i:nth-child(1) { left: 18px; }
.room-window i:nth-child(2) { left: 42px; top: 68px; }
.room-window i:nth-child(3) { right: 13px; top: 35px; }
.room-bed { position: absolute; left: 8%; right: 33%; bottom: 12%; height: 68px; border: 1px solid rgba(255,255,255,.32); border-top: 7px solid rgba(255,255,255,.5); }
.room-bed::before { content: ""; position: absolute; left: -8px; right: -8px; bottom: -15px; height: 14px; border-left: 5px solid rgba(255,255,255,.4); border-right: 5px solid rgba(255,255,255,.4); }
.room-bed span { position: absolute; width: 34%; height: 35px; top: 9px; border: 1px solid rgba(255,255,255,.22); border-radius: 20px 20px 4px 4px; }
.room-bed span:first-child { left: 8%; }
.room-bed span:last-child { right: 8%; }
.air-particles { position: absolute; inset: 6% 24% 30% 5%; }
.air-particles i { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--air); opacity: .65; box-shadow: 0 0 12px currentColor; transition: background .55s ease, opacity .55s ease, transform .55s ease; animation: particle-float 4.4s ease-in-out infinite; }
.air-particles i:nth-child(1) { left: 8%; top: 18%; }
.air-particles i:nth-child(2) { left: 24%; top: 49%; animation-delay: -.8s; }
.air-particles i:nth-child(3) { left: 39%; top: 22%; animation-delay: -1.5s; }
.air-particles i:nth-child(4) { left: 55%; top: 63%; animation-delay: -2.2s; }
.air-particles i:nth-child(5) { left: 70%; top: 31%; animation-delay: -.4s; }
.air-particles i:nth-child(6) { left: 83%; top: 72%; animation-delay: -2.8s; }
.air-particles i:nth-child(7) { left: 92%; top: 12%; animation-delay: -1.1s; }
@keyframes particle-float { 50% { transform: translate(12px, -10px); } }
.condensation { position: absolute; right: 8%; top: 14%; width: 82px; height: 112px; pointer-events: none; }
.condensation i { position: absolute; width: 5px; height: 14px; border-radius: 70% 70% 80% 80%; background: var(--air); opacity: 0; transform: translateY(-7px); transition: opacity .45s ease, transform .7s ease; }
.condensation i:nth-child(1) { left: 12px; top: 24px; }
.condensation i:nth-child(2) { left: 38px; top: 13px; }
.condensation i:nth-child(3) { left: 57px; top: 53px; }
.condensation i:nth-child(4) { left: 28px; top: 78px; }
.room-label { position: absolute; padding: 4px 7px; border: 1px solid rgba(255,255,255,.25); color: #8d9193; text-transform: uppercase; letter-spacing: .08em; font-size: .62rem; }
.room-label--air { left: 4%; top: 9%; }
.room-label--humidity { right: 5%; bottom: 8%; color: var(--air); }
.air-model[data-phase="night"] .air-particles i { background: #dd9a60; opacity: .8; transform: scale(1.18); }
.air-model[data-phase="morning"] .air-particles i { background: var(--red); opacity: .85; transform: scale(1.45); }
.air-model[data-phase="night"] .condensation i:nth-child(-n+2), .air-model[data-phase="morning"] .condensation i { opacity: .82; transform: translateY(5px); }
.air-model[data-phase="morning"] .room-schematic { background: linear-gradient(180deg, rgba(243,72,57,.08), rgba(243,72,57,.015)); }
.air-model-copy { grid-column: 2; grid-row: 2; align-self: center; min-height: 112px; padding-left: 20px; border-left: 3px solid var(--red); position: relative; }
.air-model-copy span { color: var(--air); text-transform: uppercase; letter-spacing: .1em; font-size: .72rem; font-weight: 900; }
.air-model-copy strong { display: block; margin-top: 7px; font-size: 1.1rem; }
.air-model-copy p { margin: 6px 0 0; color: #9a9d9f; line-height: 1.55; }
.air-phases { grid-column: 2; grid-row: 3; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 0; background: rgba(255,255,255,.18); position: relative; }
.air-phases button { min-height: 62px; padding: 10px 12px; border: 0; background: var(--ink-2); color: #8c8f91; cursor: pointer; font-size: .76rem; transition: background .25s ease, color .25s ease; }
.air-phases button span { display: block; color: #fff; font-size: .86rem; font-weight: 900; }
.air-phases button:hover, .air-phases button:focus-visible, .air-phases button.is-active { background: #fff; color: var(--ink); outline: none; }
.air-phases button.is-active span { color: var(--red); }
.severity-line { display: none; }
.severity-line span { display: block; width: 100%; height: 100%; transform: scaleY(0); transform-origin: top; background: linear-gradient(180deg, var(--air), var(--red)); animation: severity-grow 1.5s ease forwards; animation-timeline: view(); animation-range: entry 10% cover 80%; }
@keyframes severity-grow { to { transform: scaleY(1); } }
.impact-card { min-height: 225px; padding: 22px; border: 1px solid var(--line); background: rgba(255,255,255,.46); margin: 0; display: grid; grid-template-columns: 56px 1fr; column-gap: 17px; align-content: start; position: relative; overflow: hidden; opacity: .28; transform: translateY(24px); transition: opacity .55s ease, transform .55s ease, background .3s ease, color .3s ease; }
.impact-card.is-visible { opacity: 1; transform: none; }
.impact-meter { grid-row: span 4; width: 48px; height: 170px; padding: 5px; border: 1px solid var(--line); display: flex; align-items: end; }
.impact-meter span { display: block; width: 100%; height: var(--level); background: linear-gradient(180deg, var(--red), var(--red-deep)); transform: scaleY(0); transform-origin: bottom; transition: transform .85s cubic-bezier(.2,.8,.2,1) .15s; }
.impact-card.is-visible .impact-meter span { transform: scaleY(1); }
.impact-stage { color: var(--red); text-transform: uppercase; letter-spacing: .1em; font-size: .65rem; font-weight: 900; }
.impact-card h3 { margin: 14px 0 8px; font-size: clamp(1.35rem, 1.8vw, 2rem); line-height: 1; letter-spacing: -.04em; }
.impact-card p { color: #66696b; margin: 0; max-width: 480px; }
.impact-card strong { border-top: 1px solid var(--line); margin-top: 16px; padding-top: 10px; font-size: .78rem; }
.impact-card--warning { background: #d96a35; color: #fff; border-color: transparent; }
.impact-card--critical { background: var(--ink); color: #fff; border-color: var(--ink); }
.impact-card--warning p, .impact-card--critical p { color: rgba(255,255,255,.68); }
.impact-card--warning .impact-stage, .impact-card--critical .impact-stage { color: #fff; }
.impact-card--warning strong, .impact-card--critical strong { border-color: rgba(255,255,255,.25); }
.impact-card--warning .impact-meter, .impact-card--critical .impact-meter { border-color: rgba(255,255,255,.28); }

.diagnostic { background: var(--red); color: #fff; display: grid; grid-template-columns: 1fr .82fr; gap: clamp(50px, 9vw, 140px); }
.diagnostic .section-kicker { color: rgba(255,255,255,.66); }
.diagnostic h2 { font-size: clamp(3.2rem, 5.1vw, 5.9rem); }
.diagnostic-copy > p { max-width: 620px; color: rgba(255,255,255,.78); font-size: 1.03rem; }
.diagnostic-options { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 34px; }
.diagnostic-option { border: 1px solid rgba(255,255,255,.58); color: #fff; background: transparent; padding: 14px 16px; font-size: .82rem; cursor: pointer; transition: background .2s ease, color .2s ease, transform .2s ease; }
.diagnostic-option:hover, .diagnostic-option:focus-visible, .diagnostic-option[aria-pressed="true"] { background: #fff; color: var(--ink); outline: none; transform: translateY(-2px); }
.diagnostic-option[aria-pressed="true"]::before { content: "✓ "; color: var(--red); font-weight: 900; }
.diagnostic-result { background: #fff; color: var(--ink); padding: clamp(30px, 4vw, 56px); display: flex; flex-direction: column; box-shadow: 0 26px 70px rgba(116,26,19,.18); }
.result-label { color: var(--red); font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 900; }
.diagnostic-result h3 { margin: 25px 0 14px; font-size: clamp(1.75rem, 2.6vw, 3rem); line-height: 1.02; letter-spacing: -.04em; }
.diagnostic-result > p { color: #67696b; }
.diagnostic-result .result-context { width: max-content; max-width: 100%; margin: 17px 0 0; padding: 7px 10px; border: 1px solid rgba(16,17,19,.17); color: #4f5254; font-size: .78rem; font-weight: 700; }
.diagnostic-result ul { list-style: none; padding: 0; margin: 16px 0 30px; }
.diagnostic-result li { border-top: 1px solid var(--line); padding: 12px 0 12px 22px; position: relative; font-size: .84rem; }
.diagnostic-result li::before { content: ""; width: 7px; height: 7px; background: var(--red); position: absolute; left: 0; top: 19px; }
.diagnostic-result small { margin-top: 12px; color: #777; text-align: center; }

.private-service { display: grid; grid-template-columns: 1fr 1fr; min-height: clamp(720px, calc(100svh - var(--header-h)), 880px); background: var(--ink); color: #fff; }
.private-photo { position: relative; min-height: 0; overflow: hidden; clip-path: none; }
.private-photo.is-visible { clip-path: none; }
.private-photo > img { width: 100%; height: 110%; object-fit: cover; object-position: 50% 50%; transform: translateY(var(--parallax-y, -4%)) scale(1.035); filter: saturate(.78) contrast(1.05); }
.private-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(5,6,7,.82)); }
.private-photo-note { position: absolute; z-index: 2; left: clamp(24px, 4vw, 64px); right: 24px; bottom: 42px; display: flex; flex-direction: column; }
.private-photo-note span { color: var(--air); text-transform: uppercase; letter-spacing: .12em; font-size: .66rem; font-weight: 900; }
.private-photo-note strong { font-size: clamp(1.25rem, 2.1vw, 2.2rem); margin-top: 7px; }
.private-copy { padding: clamp(50px, 6vh, 72px) var(--pad) clamp(50px, 6vh, 72px) clamp(36px, 5vw, 76px); position: relative; overflow: hidden; }
.private-copy::before { content: ""; position: absolute; inset: 8% -35% auto auto; width: 78%; aspect-ratio: 1; border: 1px solid rgba(85,211,204,.16); border-radius: 50%; box-shadow: 0 0 70px rgba(85,211,204,.05); }
.private-copy h2 { font-size: clamp(2.75rem, 4.3vw, 4.85rem); position: relative; }
.private-lead { max-width: 680px; color: #a7aaab; font-size: 1.03rem; line-height: 1.65; position: relative; }
.status-code { margin-top: 25px; position: relative; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 22px; }
.status-code article { display: grid; grid-template-columns: 13px 1fr; gap: 11px; padding: 13px 0; border-top: 1px solid var(--line-dark); }
.status-code article > i { width: 8px; height: 8px; margin-top: 5px; border: 2px solid var(--air); border-radius: 50%; box-shadow: 0 0 0 4px rgba(85,211,204,.07); }
.status-code strong { display: block; font-size: 1rem; }
.status-code p { margin: 5px 0 0; color: #929597; font-size: .79rem; line-height: 1.45; max-width: 620px; }
.peer-row { margin-top: 21px; display: flex; align-items: center; gap: 10px; color: #777a7c; font-size: .64rem; text-transform: uppercase; letter-spacing: .08em; flex-wrap: wrap; }
.peer-row i { width: 22px; height: 1px; background: linear-gradient(90deg, var(--red), var(--air)); }
.solutions { background: #fff; }
.solution-list { border-top: 1px solid var(--line); }
.solution-card { display: grid; grid-template-columns: minmax(280px, 1.1fr) minmax(190px, .55fr) minmax(220px, .65fr); gap: clamp(20px, 3.5vw, 54px); padding: 38px 0; border-bottom: 1px solid var(--line); align-items: center; opacity: .35; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease, padding .25s ease; }
.solution-card.is-visible { opacity: 1; transform: none; }
.solution-card:hover { padding-left: 14px; padding-right: 14px; }
.solution-tag { margin: 0 0 9px; color: var(--red); text-transform: uppercase; letter-spacing: .1em; font-size: .66rem; font-weight: 900; }
.solution-card h3 { margin: 0 0 12px; font-size: clamp(1.55rem, 2.35vw, 2.65rem); line-height: 1; letter-spacing: -.04em; }
.solution-content > p:last-child { color: #686b6d; margin: 0; font-size: .9rem; max-width: 610px; }
.solution-card > img { width: 100%; max-height: 170px; object-fit: contain; mix-blend-mode: multiply; filter: saturate(.75); transition: transform .35s ease; }
.solution-card:hover > img { transform: scale(1.055) rotate(-1deg); }
.solution-card ul { list-style: none; padding: 0; margin: 0; }
.solution-card li { padding: 9px 0; border-bottom: 1px solid var(--line); font-size: .78rem; }
.solution-card--featured { position: relative; }
.solution-card--featured::before { content: "ОПТИМАЛЬНЫЙ БАЛАНС"; position: absolute; right: 0; top: 8px; background: var(--red); color: #fff; padding: 5px 9px; font-size: .58rem; font-weight: 900; letter-spacing: .08em; }
.solution-diagram { min-height: 150px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; position: relative; align-content: center; }
.solution-diagram span { grid-column: span 2; text-align: center; background: var(--ink); color: #fff; padding: 9px; font-size: .68rem; font-weight: 900; }
.solution-diagram i { position: absolute; left: 50%; top: 44px; bottom: 37px; width: 1px; background: var(--red); }
.solution-diagram b { background: var(--paper-2); padding: 9px; text-align: center; font-size: .62rem; font-weight: 700; }
.equipment-strip { margin-top: 34px; padding: 22px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; grid-template-columns: minmax(260px, .7fr) 1.3fr; gap: 28px; align-items: center; }
.equipment-strip p { margin: 0; color: #696c6e; font-size: .82rem; }
.equipment-strip p strong { display: block; color: var(--ink); font-size: 1rem; }
.equipment-strip ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.equipment-strip li { padding: 9px 13px; border: 1px solid var(--line); background: var(--paper); font-size: .74rem; font-weight: 900; letter-spacing: .025em; }

.cases { background: var(--paper-2); }
.case-grid { min-height: clamp(820px, 88svh, 960px); display: grid; grid-template-columns: minmax(0, 1.16fr) minmax(340px, .84fr); gap: 18px; perspective: 1200px; }
.case-card { min-height: 0; background: #fff; display: grid; grid-template-rows: 44% 56%; transform-style: preserve-3d; transition: transform .18s ease, box-shadow .3s ease; }
.case-card:hover { box-shadow: 0 26px 70px rgba(16,17,19,.12); }
.case-card--flagship { grid-template-rows: 48% 52%; }
.case-gallery { min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) 96px; gap: 6px; background: #202224; }
.case-thumbs { min-height: 0; display: grid; grid-template-rows: repeat(3, minmax(0, 1fr)); gap: 6px; }
.case-thumbs button { min-height: 0; padding: 0; border: 0; overflow: hidden; position: relative; cursor: zoom-in; background: #202224; }
.case-thumbs button::after { content: "+"; position: absolute; right: 7px; top: 7px; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: rgba(16,17,19,.62); font-size: .8rem; }
.case-thumbs img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.76) contrast(1.06); transition: transform .45s ease, filter .35s ease; }
.case-thumbs button:hover img { transform: scale(1.055); filter: saturate(1); }
.case-image { padding: 0; border: 0; width: 100%; position: relative; overflow: hidden; cursor: zoom-in; background: #222; clip-path: none; }
.case-image--main { height: 100%; }
.case-image.is-visible { clip-path: none; }
.case-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(0,0,0,.75)); }
.case-image img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.82) contrast(1.06); transition: transform .55s ease, filter .45s ease; }
.case-card:hover .case-image img { transform: scale(1.045); filter: saturate(1) contrast(1.02); }
.case-image span { position: absolute; z-index: 2; left: 20px; bottom: 18px; color: #fff; font-size: .72rem; font-weight: 900; }
.case-image::before { content: "+"; position: absolute; z-index: 3; top: 16px; right: 16px; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; background: rgba(16,17,19,.58); color: #fff; backdrop-filter: blur(8px); font-size: 1.2rem; }
.case-body { padding: clamp(20px, 2.4vw, 34px); display: flex; flex-direction: column; }
.case-label { margin: 0 0 15px; color: var(--red); text-transform: uppercase; letter-spacing: .1em; font-size: .66rem; font-weight: 900; }
.case-body h3 { margin: 0 0 12px; font-size: clamp(1.25rem, 1.75vw, 2.05rem); line-height: 1.04; letter-spacing: -.04em; text-wrap: balance; }
.case-card--flagship .case-body h3 { font-size: clamp(1.65rem, 2.15vw, 2.55rem); }
.case-body p { color: #686b6d; margin: 0 0 12px; }
.case-body strong { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); font-size: .84rem; }
.case-points { list-style: none; margin: 5px 0 18px; padding: 0; display: grid; gap: 8px; }
.case-points li { position: relative; padding-left: 18px; color: #45484a; font-size: .8rem; line-height: 1.42; }
.case-points li::before { content: ""; position: absolute; left: 0; top: .58em; width: 7px; height: 7px; border-radius: 50%; background: var(--red); }

.team { background: var(--ink); color: #fff; overflow: hidden; }
.team .section-heading > p { color: #8c8f91; }
.team-grid { display: grid; grid-template-columns: 1.15fr repeat(4, 1fr); gap: 12px; }
.team-card { min-width: 0; min-height: clamp(380px, 45svh, 470px); position: relative; overflow: hidden; background: #292c2f; }
.team-card img { width: 100%; height: 100%; object-fit: cover; object-position: center top; filter: grayscale(1) contrast(1.05); transition: filter .45s ease, transform .55s ease; }
.team-card:hover img { filter: grayscale(0) contrast(1); transform: scale(1.035); }
.team-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(5,6,7,.92)); }
.team-card > div { position: absolute; z-index: 2; left: 18px; right: 14px; bottom: 18px; display: flex; flex-direction: column; }
.team-card strong { font-size: .9rem; }
.team-card span { margin-top: 3px; color: var(--air); font-size: .66rem; text-transform: uppercase; letter-spacing: .08em; }
.team-card--lead { box-shadow: inset 0 0 0 1px var(--red); }

.process { background: #fff; }
.process-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.process-list li { display: grid; grid-template-columns: 78px 1fr; gap: 18px; padding: 23px 0; border-bottom: 1px solid var(--line); opacity: .32; transform: translateX(-22px); transition: opacity .45s ease, transform .45s ease, padding .25s ease; }
.process-list li.is-visible { opacity: 1; transform: none; }
.process-list li:hover { padding-left: 14px; }
.process-list li > span { color: var(--red); font-size: .7rem; font-weight: 900; }
.process-list div { display: grid; grid-template-columns: minmax(240px, .65fr) 1.35fr; gap: 45px; }
.process-list strong { font-size: clamp(1.2rem, 2vw, 2.25rem); line-height: 1.05; }
.process-list p { margin: 0; color: #696c6e; max-width: 700px; }

.engineering-proof { background: var(--paper-2); overflow: hidden; }
.proof-console { display: grid; grid-template-columns: minmax(420px, 1.05fr) minmax(430px, .95fr); gap: 18px; }
.proof-screen { min-height: 520px; padding: clamp(28px, 3.5vw, 48px); background: var(--ink); color: #fff; opacity: .35; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease; }
.proof-screen.is-visible { opacity: 1; transform: none; }
.proof-screen-head { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 22px; border-bottom: 1px solid var(--line-dark); }
.proof-screen-head span { color: var(--air); text-transform: uppercase; letter-spacing: .1em; font-size: .72rem; font-weight: 900; }
.proof-screen-head strong { font-size: .78rem; }
.proof-airflow { min-height: 340px; margin: 34px 0 28px; display: grid; grid-template-columns: minmax(105px, .7fr) 1px minmax(170px, 1fr); grid-template-rows: repeat(3, 1fr); gap: 11px 32px; position: relative; }
.proof-source { grid-row: 1 / 4; align-self: center; display: grid; place-items: center; min-height: 140px; padding: 14px; border: 1px solid rgba(255,255,255,.35); background: linear-gradient(145deg, #2b2e31, #151719); color: #fff; font-size: .8rem; font-weight: 900; box-shadow: 0 0 45px rgba(85,211,204,.06); }
.proof-airflow > i { grid-row: 1 / 4; align-self: stretch; position: relative; background: linear-gradient(180deg, var(--air), var(--red)); }
.proof-airflow > i::before, .proof-airflow > i::after { content: ""; position: absolute; left: -72px; width: 144px; height: 1px; background: linear-gradient(90deg, transparent, var(--air), transparent); animation: airflow-pulse 2.8s ease-in-out infinite; }
.proof-airflow > i::before { top: 27%; }
.proof-airflow > i::after { bottom: 27%; animation-delay: -1.4s; }
@keyframes airflow-pulse { 0%,100% { opacity: .2; transform: scaleX(.35); } 50% { opacity: 1; transform: scaleX(1); } }
.proof-airflow > div { padding: 18px; border: 1px solid var(--line-dark); display: flex; flex-direction: column; justify-content: center; background: rgba(255,255,255,.025); }
.proof-airflow b { font-size: .9rem; }
.proof-airflow small { margin-top: 3px; color: #85888a; font-size: .72rem; }
.proof-screen > p { color: #999c9e; line-height: 1.65; }
.proof-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.proof-card { min-height: 251px; padding: 26px; background: #fff; opacity: .35; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease, box-shadow .3s ease; }
.proof-card.is-visible { opacity: 1; transform: none; }
.proof-card:hover { box-shadow: 0 24px 60px rgba(16,17,19,.1); }
.proof-card > span { color: var(--red); font-size: .76rem; font-weight: 900; }
.proof-card h3 { margin: 12px 0 11px; font-size: clamp(1.45rem, 1.9vw, 2.15rem); line-height: 1; letter-spacing: -.04em; }
.proof-card p { margin: 0; color: #66696b; line-height: 1.55; }

.value { background: var(--air); display: grid; grid-template-columns: 1fr .82fr; gap: clamp(50px, 9vw, 140px); align-items: center; }
.value .section-kicker { color: rgba(16,17,19,.6); }
.value h2 { font-size: clamp(3.1rem, 5.3vw, 6rem); }
.value-copy > p { max-width: 700px; font-size: 1.03rem; line-height: 1.65; }
.value-card { background: var(--ink); color: #fff; padding: clamp(32px, 4vw, 56px); opacity: .35; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.value-card.is-visible { opacity: 1; transform: none; }
.value-card > span { color: var(--red); text-transform: uppercase; font-size: .66rem; font-weight: 900; letter-spacing: .1em; }
.value-card h3 { font-size: clamp(1.6rem, 2.6vw, 3rem); line-height: 1.03; margin: 22px 0 28px; letter-spacing: -.04em; }
.value-card div { border-top: 1px solid var(--line-dark); padding: 16px 0; display: grid; grid-template-columns: 116px 1fr; gap: 18px; }
.value-card div p { color: #929597; margin: 0; font-size: .84rem; }
.value-card .button { width: 100%; margin-top: 20px; }

.faq { background: var(--paper); }
.faq-list { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; font-weight: 900; font-size: clamp(1rem, 1.5vw, 1.35rem); padding: 23px 70px 23px 0; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 16px; color: var(--red); font-size: 2rem; font-weight: 300; transition: transform .25s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { max-width: 860px; color: #636668; margin: -4px 0 28px; }

.final-cta { background: var(--red); color: #fff; display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .68fr); gap: clamp(44px, 7vw, 110px); align-items: center; }
.final-cta h2 { font-size: clamp(3.2rem, 5.45vw, 6.2rem); }
.final-cta h2 em { color: var(--ink); }
.final-cta .eyebrow { color: rgba(255,255,255,.75); }
.final-cta .eyebrow span { background: #fff; }
.final-cta-copy > p:not(.eyebrow) { max-width: 680px; color: rgba(255,255,255,.78); font-size: 1rem; }
.final-phone { display: block; margin: 25px 0 7px; text-decoration: none; font-size: clamp(1.65rem, 2.8vw, 3.1rem); font-weight: 900; letter-spacing: -.05em; }
.final-cta-copy > span { font-size: .76rem; }
.request-form { padding: clamp(26px, 3.6vw, 46px); display: grid; gap: 16px; background: #fff; color: var(--ink); box-shadow: 0 28px 76px rgba(117,24,17,.22); }
.form-heading { margin-bottom: 4px; display: flex; flex-direction: column; }
.form-heading span { color: var(--red); text-transform: uppercase; letter-spacing: .11em; font-size: .7rem; font-weight: 900; }
.form-heading strong { margin-top: 5px; font-size: clamp(1.35rem, 2vw, 2rem); line-height: 1.1; }
.form-field { display: grid; gap: 7px; }
.form-field > span { font-size: .77rem; font-weight: 900; }
.form-field small { color: #777a7c; font-weight: 500; }
.form-field input, .form-field textarea { width: 100%; min-height: 52px; border: 1px solid var(--line); border-radius: 0; padding: 13px 14px; background: #f8f8f6; color: var(--ink); font: inherit; font-size: 16px; line-height: 1.35; appearance: none; }
.form-field textarea { min-height: 96px; resize: vertical; }
.form-field input::placeholder, .form-field textarea::placeholder { color: #8b8d8e; opacity: 1; }
.form-field.is-invalid input, .form-consent.is-invalid { border-color: var(--red); }
.form-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.form-consent { padding: 11px 12px; border: 1px solid transparent; display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; background: var(--paper); font-size: .72rem; line-height: 1.45; }
.form-consent input { width: 19px; height: 19px; margin: 1px 0 0; accent-color: var(--red); }
.form-consent a { text-underline-offset: 2px; }
.form-submit { width: 100%; border: 0; cursor: pointer; }
.form-submit:disabled { cursor: wait; opacity: .66; }
.form-status { min-height: 1.35em; margin: -4px 0 0; color: #5f6264; font-size: .76rem; }
.form-status.is-success { color: #17716c; font-weight: 900; }
.form-status.is-error { color: #a52119; font-weight: 700; }

.footer { min-height: 220px; padding: 28px var(--pad); display: grid; grid-template-columns: auto minmax(200px, .72fr) minmax(310px, 1.12fr) minmax(230px, .55fr); gap: clamp(24px, 3.4vw, 52px); align-items: center; background: var(--ink); color: #fff; }
.footer p { color: #7d8082; max-width: 430px; font-size: .82rem; }
.footer-contact { display: flex; flex-direction: column; align-items: flex-start; }
.footer-contact a { text-decoration: none; font-weight: 900; }
.footer-contact span { color: #6d7072; font-size: .75rem; margin-top: 7px; }
.legal-links { margin-top: 9px; display: flex; flex-wrap: wrap; gap: 6px 14px; }
.legal-links a { color: #a7aaab; text-decoration: underline; text-underline-offset: 3px; font-size: .72rem; font-weight: 500; }
.studio-credit { min-height: 112px; padding: 20px 60px 20px 22px; border: 1px solid rgba(255,255,255,.18); display: flex; flex-direction: column; justify-content: center; position: relative; overflow: hidden; color: #fff; text-decoration: none; background: rgba(255,255,255,.025); transition: border-color .3s ease, background .3s ease, transform .3s ease; }
.studio-credit::before { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 18%, rgba(85,211,204,.13), rgba(243,72,57,.16), transparent 82%); transform: translateX(-110%); transition: transform .65s cubic-bezier(.2,.8,.2,1); }
.studio-credit > span { color: #777b7d; text-transform: uppercase; letter-spacing: .1em; font-size: .7rem; position: relative; }
.studio-credit strong { margin-top: 6px; font-size: 1rem; font-weight: 500; position: relative; }
.studio-credit strong b { color: var(--air); font-size: 1.32rem; letter-spacing: -.035em; }
.studio-credit i { position: absolute; right: 18px; top: 50%; width: 34px; height: 34px; transform: translateY(-50%); border: 1px solid rgba(255,255,255,.32); border-radius: 50%; display: grid; place-items: center; color: var(--red); font-style: normal; transition: transform .3s ease, background .3s ease, color .3s ease; }
.studio-credit:hover { border-color: rgba(85,211,204,.65); background: rgba(255,255,255,.045); transform: translateY(-3px); }
.studio-credit:hover::before { transform: translateX(110%); }
.studio-credit:hover i { transform: translateY(-50%) rotate(45deg); background: var(--red); color: #fff; border-color: var(--red); }
.mobile-actions { display: none; }

.lightbox { width: min(94vw, 1100px); height: min(88vh, 850px); padding: 0; border: 0; background: #0b0c0e; overflow: hidden; }
.lightbox::backdrop { background: rgba(0,0,0,.86); backdrop-filter: blur(8px); }
.lightbox img { width: 100%; height: 100%; object-fit: contain; }
.lightbox button { position: absolute; right: 12px; top: 12px; z-index: 2; width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.35); border-radius: 50%; background: rgba(0,0,0,.55); color: #fff; font-size: 1.6rem; cursor: pointer; }

.legal-page { background: var(--paper); }
.legal-header { min-height: 76px; padding: 8px var(--pad); display: flex; align-items: center; justify-content: space-between; gap: 24px; background: var(--ink); color: #fff; }
.legal-header > a:last-child { color: #c3c5c6; font-size: .82rem; text-underline-offset: 4px; }
.legal-main { width: min(980px, calc(100% - 44px)); margin: 0 auto; padding: clamp(58px, 8vw, 110px) 0; }
.legal-main > h1 { max-width: 900px; margin: 0; font-size: clamp(2.7rem, 6.5vw, 5.9rem); line-height: .94; letter-spacing: -.055em; text-wrap: balance; }
.legal-updated { margin: 22px 0 46px; color: #717476; font-size: .82rem; }
.legal-main section { padding: 26px 0; border-top: 1px solid var(--line); }
.legal-main section:last-of-type { border-bottom: 1px solid var(--line); }
.legal-main section h2 { margin: 0 0 12px; font-size: clamp(1.3rem, 2.3vw, 2rem); line-height: 1.12; letter-spacing: -.03em; }
.legal-main section p, .legal-main--consent > p { max-width: 830px; margin: 0 0 12px; color: #505355; line-height: 1.72; }
.legal-main section p:last-child { margin-bottom: 0; }
.legal-main a { text-underline-offset: 3px; }
.legal-main .legal-note { margin-top: 30px; padding: 18px 20px; border-left: 4px solid var(--red); background: #fff; color: var(--ink); font-weight: 700; }
.legal-footer { min-height: 110px; padding: 26px var(--pad); display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; background: var(--ink); color: #fff; }
.legal-footer span { margin-right: auto; font-weight: 900; }
.legal-footer a { color: #a9acad; font-size: .8rem; }

.header-contact span,
.eyebrow,
.section-kicker,
.entry-route-label,
.hero-proof li > span,
.hero-caption span,
.hero-seal small,
.scroll-cue,
.room-label,
.air-model-head span,
.air-model-head small,
.air-model-copy span,
.impact-stage,
.result-label,
.private-photo-note span,
.peer-row,
.solution-tag,
.solution-card--featured::before,
.solution-diagram span,
.solution-diagram b,
.case-image span,
.case-label,
.team-card span,
.proof-screen-head span,
.proof-airflow small,
.value-card > span,
.footer > div span { font-size: .75rem; }

html:not(.js) .observe-card { opacity: 1; transform: none; }
html:not(.js) .photo-reveal { clip-path: inset(0); }
html:not(.js) .impact-meter span { transform: scaleY(1); }

@media (max-height: 760px) and (min-width: 821px) {
  .hero-copy { padding-top: 28px; padding-bottom: 22px; }
  .eyebrow { margin-bottom: 12px; }
  .hero-title { font-size: clamp(3rem, 4.8vw, 5.35rem); }
  .hero-lead { margin-top: 16px; font-size: .92rem; }
  .hero-actions { margin-top: 18px; }
  .hero-proof li { padding-top: 12px; }
  .hero-seal { width: 96px; }
}

@media (max-width: 1180px) {
  .airflow-label { display: none; }
  .site-header { grid-template-columns: auto 1fr auto; }
  .nav { display: none; }
  .hero { grid-template-columns: minmax(0, 1.05fr) minmax(390px, .95fr); }
  .hero-copy { padding-left: 32px; }
  .consequences { gap: 55px; grid-template-columns: .85fr 1.15fr; }
  .solution-card { grid-template-columns: minmax(280px, 1fr) 180px; }
  .solution-card ul { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .team-card { min-height: 420px; }
  .entry-workspace { grid-template-columns: minmax(310px, .72fr) minmax(430px, 1.28fr); }
  .proof-console { grid-template-columns: .92fr 1.08fr; }
  .footer { grid-template-columns: auto 1fr auto; }
  .studio-credit { grid-column: 2 / 4; min-height: 86px; }
}

@media (max-width: 900px) {
  :root { --header-h: 70px; }
  body { padding-bottom: 60px; }
  .legal-page { padding-bottom: 0; }
  .site-header { padding: 5px 18px; grid-template-columns: auto 1fr; }
  .brand { width: 150px; height: 48px; gap: 5px; }
  .brand-symbol { width: 42px; height: 29px; background-size: 119px 50px; }
  .brand-name b { font-size: .87rem; }
  .brand-name b:last-child { margin-top: 5px; font-size: .81rem; }
  .header-contact { align-items: flex-end; }
  .header-contact span, .site-header > .button { display: none; }
  .header-contact a { font-size: .8rem; }
  .hero { height: auto; min-height: 0; max-height: none; grid-template-columns: 1fr; }
  .hero-copy { min-height: calc(100svh - var(--header-h)); padding: 58px 22px 35px; }
  .hero-title { font-size: clamp(3.15rem, 13.5vw, 6rem); }
  .hero-media { height: 74svh; min-height: 570px; border-left: 0; border-top: 1px solid var(--line-dark); }
  .scroll-cue { display: none; }
  .section { padding-left: 22px; padding-right: 22px; }
  .section-heading { grid-template-columns: 1fr; gap: 22px; }
  .entry-heading { grid-template-columns: 1fr; gap: 22px; }
  .entry-heading .section-kicker { grid-column: auto; }
  .entry-workspace { grid-template-columns: 1fr; min-height: 0; }
  .entry-tabs { display: grid; grid-template-columns: repeat(3, 1fr); border-right: 0; border-bottom: 1px solid var(--line); }
  .entry-tab { min-height: 175px; grid-template-columns: 1fr; grid-template-rows: auto auto; gap: 5px; padding: 22px; border-right: 1px solid var(--line); border-bottom: 0; }
  .entry-tab:hover, .entry-tab:focus-visible { padding-left: 22px; }
  h2 { font-size: clamp(2.85rem, 11.5vw, 5.4rem); }
  .consequences { grid-template-columns: 1fr; gap: 45px; }
  .sticky-copy { position: static; }
  .diagnostic { grid-template-columns: 1fr; }
  .private-service { grid-template-columns: 1fr; }
  .private-photo { min-height: 72svh; }
  .private-copy { padding-left: 22px; padding-right: 22px; }
  .solution-card { grid-template-columns: minmax(0, 1fr) minmax(170px, .45fr); }
  .solution-card > img, .solution-diagram { grid-column: 2; max-width: 300px; }
  .solution-card ul { grid-column: 1 / -1; grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .equipment-strip { grid-template-columns: 1fr; }
  .equipment-strip ul { justify-content: flex-start; }
  .case-grid { min-height: 0; grid-template-columns: 1fr; }
  .case-card--flagship { min-height: 880px; }
  .case-card--compact { min-height: 700px; }
  .team-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .team-card { min-height: 520px; }
  .team-card--lead { grid-column: span 2; }
  .process-list div { grid-template-columns: 1fr; gap: 9px; }
  .proof-console { grid-template-columns: 1fr; }
  .proof-screen { min-height: 560px; }
  .value, .final-cta { grid-template-columns: 1fr; }
  .footer { grid-template-columns: 1fr; gap: 16px; }
  .footer-contact { align-items: flex-start; }
  .studio-credit { grid-column: auto; width: min(100%, 460px); }
  .mobile-actions { display: grid; grid-template-columns: 1fr 1fr; position: fixed; z-index: 115; left: 0; right: 0; bottom: 0; min-height: 60px; background: var(--ink); color: #fff; border-top: 1px solid rgba(255,255,255,.25); }
  .mobile-actions a { min-height: 60px; display: flex; align-items: center; justify-content: center; padding: 10px 12px; text-align: center; text-decoration: none; font-size: .82rem; font-weight: 900; }
  .mobile-actions a:last-child { background: var(--red); }
}

@media (max-width: 560px) {
  .site-header { padding: 5px 12px; gap: 8px; }
  .hero-copy { min-height: auto; padding-top: 46px; }
  .hero-title { font-size: clamp(2.8rem, 13.7vw, 4.4rem); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .text-link { padding: 7px 0; }
  .hero-proof { grid-template-columns: 1fr; margin-top: 36px; }
  .hero-proof li { padding: 12px 0; border-left: 0 !important; border-bottom: 1px solid var(--line-dark); }
  .hero-proof li > span { display: inline; margin-left: 8px; }
  .hero-media { min-height: 430px; height: 56svh; }
  .hero-seal { width: 94px; right: 15px; top: 15px; }
  .hero-caption { left: 18px; right: 18px; bottom: 20px; }
  .consequence-visual { padding-left: 0; }
  .air-model { margin: 0; grid-template-columns: 1fr; grid-template-rows: auto auto auto auto; }
  .air-model-head { grid-template-columns: 1fr; }
  .air-model-head small { max-width: 410px; }
  .room-schematic { grid-column: 1; grid-row: 2; height: 220px; }
  .air-model-copy { grid-column: 1; grid-row: 3; }
  .air-phases { grid-column: 1; grid-row: 4; }
  .severity-line { left: 7px; }
  .impact-card { grid-template-columns: 54px 1fr; padding: 20px; min-height: 250px; }
  .impact-meter { width: 44px; height: 190px; }
  .diagnostic-result, .value-card { margin-left: -22px; margin-right: -22px; }
  .diagnostic h2 { font-size: clamp(2.8rem, 13vw, 4.8rem); }
  .private-photo { min-height: 430px; }
  .status-code { grid-template-columns: 1fr; }
  .status-code article { grid-template-columns: 13px 1fr; }
  .entry-tabs { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; }
  .entry-tab { flex: 0 0 76vw; min-height: 154px; scroll-snap-align: start; border-right: 1px solid var(--line); }
  .entry-result { padding: 34px 22px; }
  .entry-result h3 { margin-top: 24px; }
  .air-phases button { min-height: 70px; font-size: .7rem; }
  .room-bed { right: 40%; }
  .room-window, .condensation { right: 5%; }
  .solution-card { grid-template-columns: 1fr; }
  .solution-card > img, .solution-diagram, .solution-card ul { grid-column: 1; }
  .solution-card--featured::before { position: static; display: block; width: max-content; margin-bottom: 14px; }
  .case-card, .case-card--compact { min-height: 610px; }
  .case-card--flagship { min-height: 900px; grid-template-rows: 38% 62%; }
  .case-gallery { grid-template-columns: 1fr; grid-template-rows: minmax(0, 1fr) 82px; }
  .case-thumbs { grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: 1fr; }
  .team-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 10px; }
  .team-card, .team-card--lead { flex: 0 0 78vw; min-height: 450px; scroll-snap-align: start; }
  .process-list li { grid-template-columns: 36px 1fr; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-card { min-height: 230px; }
  .proof-card h3 { margin-top: 12px; }
  .proof-airflow { gap: 9px 20px; grid-template-columns: 92px 1px 1fr; }
  .value-card div { grid-template-columns: 1fr; gap: 3px; }
  .section { padding-top: 58px; padding-bottom: 58px; }
  .final-cta { gap: 32px; }
  .final-cta h2 { font-size: clamp(2.8rem, 13vw, 4.35rem); }
  .request-form { margin-left: -22px; margin-right: -22px; padding: 27px 22px; }
  .footer { padding-bottom: 34px; }
  .legal-header { min-height: 68px; padding: 8px 14px; }
  .legal-header .brand { width: 142px; }
  .legal-header > a:last-child { max-width: 118px; text-align: right; font-size: .72rem; }
  .legal-main { width: min(100% - 36px, 980px); padding: 48px 0 64px; }
  .legal-main > h1 { font-size: clamp(2.45rem, 12vw, 3.6rem); }
  .legal-updated { margin-bottom: 34px; }
  .legal-main section { padding: 22px 0; }
  .legal-footer { padding: 24px 18px; flex-direction: column; align-items: flex-start; }
  .legal-footer span { margin-right: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .hero-line, .reveal-item, .observe-card, .photo-reveal { opacity: 1 !important; transform: none !important; clip-path: none !important; }
  .airflow-journey { display: none; }
}