:root {
  --ink: #06131f;
  --ink-soft: #102637;
  --blue: #0079a8;
  --cyan: #00c2ff;
  --ice: #d9f4ff;
  --paper: #f5f8fa;
  --white: #ffffff;
  --line: rgba(6, 19, 31, 0.14);
  --muted: #61717d;
  --header-h: 88px;
  --shell: min(1180px, calc(100vw - 64px));
  --ease: cubic-bezier(.2, .8, .2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Aptos", "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
img { display: block; max-width: 100%; }
address { font-style: normal; }
::selection { color: var(--ink); background: var(--cyan); }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--white);
  color: var(--ink);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }
.page-shell { width: var(--shell); margin-inline: auto; }
.section { position: relative; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 max(32px, calc((100vw - 1340px) / 2));
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.15);
  transition: height .45s var(--ease), background .45s, color .45s, box-shadow .45s;
}
.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(6,19,31,.2);
  backdrop-filter: blur(0);
  transition: inherit;
}
.site-header.is-scrolled { height: 70px; color: var(--ink); box-shadow: 0 12px 40px rgba(6,19,31,.08); }
.site-header.is-scrolled::after { background: rgba(247,250,252,.92); backdrop-filter: blur(16px); }

.brand { display: inline-flex; align-items: center; width: max-content; }
.brand-logo { width: 200px; height: auto; filter: brightness(0) invert(1) grayscale(1); opacity: .96; transition: filter .45s var(--ease), opacity .45s var(--ease); }
.site-header.is-scrolled .brand-logo { filter: none; opacity: 1; }
.brand-symbol { position: relative; display: inline-block; width: 40px; height: 40px; }
.brand-symbol::before,
.brand-symbol::after,
.brand-symbol span {
  content: "";
  position: absolute;
  border: 2px solid var(--cyan);
  border-left-color: transparent;
  border-radius: 50%;
  transform: rotate(-18deg);
}
.brand-symbol::before { inset: 3px; }
.brand-symbol::after { inset: 9px; opacity: .72; }
.brand-symbol span:first-child { inset: 15px; border-width: 3px; background: var(--cyan); }
.brand-symbol span:last-child { width: 9px; height: 9px; border: 0; border-radius: 50%; background: var(--cyan); top: 3px; right: 7px; }
.brand-copy { display: grid; line-height: 1; letter-spacing: .045em; }
.brand-copy strong { font-size: 1.03rem; font-weight: 760; }
.brand-copy small { margin-top: 5px; font-size: .62rem; letter-spacing: .2em; opacity: .72; }
.desktop-nav { display: flex; gap: 34px; font-size: .87rem; }
.desktop-nav a { position: relative; opacity: .82; transition: opacity .3s; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; bottom: -9px; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .35s var(--ease); }
.desktop-nav a:hover { opacity: 1; }
.desktop-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.header-cta { justify-self: end; display: inline-flex; align-items: center; gap: 12px; padding: 12px 17px; border: 1px solid rgba(255,255,255,.38); font-size: .82rem; font-weight: 650; transition: background .3s, color .3s, border-color .3s; }
.header-cta svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.4; transition: transform .3s; }
.header-cta:hover { background: var(--cyan); border-color: var(--cyan); color: var(--ink); }
.header-cta:hover svg { transform: translateX(3px); }
.is-scrolled .header-cta { border-color: rgba(6,19,31,.25); }
.menu-button { display: none; }

.mobile-menu { display: none; }

.hero {
  position: relative;
  min-height: 760px;
  height: min(900px, 100svh);
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}
.hero-media, .hero-overlay { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 58%; transform: scale(1.04); animation: heroZoom 14s var(--ease) forwards; }
.hero-overlay { background: linear-gradient(90deg, rgba(3,13,22,.96) 0%, rgba(3,13,22,.84) 35%, rgba(3,13,22,.38) 68%, rgba(3,13,22,.54) 100%), linear-gradient(0deg, rgba(3,13,22,.8), transparent 42%); }
.hero::before { content: ""; position: absolute; inset: 0; z-index: 1; opacity: .1; background-image: linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px); background-size: 84px 84px; mask-image: linear-gradient(to right, black, transparent 72%); }
.air-lines { position: absolute; z-index: 1; right: -120px; top: 50%; width: min(50vw, 720px); transform: translateY(-50%); opacity: .22; }
.air-lines svg { width: 100%; stroke: var(--cyan); stroke-width: 1; stroke-dasharray: 3 10; animation: rotate 45s linear infinite; }
.hero-content { position: relative; z-index: 2; height: 100%; display: grid; grid-template-columns: minmax(0, 1fr) 270px; align-items: center; gap: 80px; padding-top: var(--header-h); padding-bottom: 104px; }
.hero-copy { max-width: 820px; animation: riseIn .9s .12s both var(--ease); }
.kicker { margin: 0 0 18px; color: var(--blue); text-transform: uppercase; letter-spacing: .18em; font-size: .72rem; font-weight: 750; }
.hero-kicker { color: var(--ice); display: flex; align-items: center; gap: 10px; }
.hero-kicker span { width: 28px; height: 1px; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
h1, h2, h3, blockquote { margin-top: 0; letter-spacing: -.045em; line-height: .98; }
.hero h1 { margin-bottom: 28px; max-width: 860px; font-size: clamp(3.5rem, 6.2vw, 6.8rem); font-weight: 560; }
.hero h1 em { color: var(--cyan); font-family: Georgia, "Times New Roman", serif; font-weight: 400; }
.hero-lead { max-width: 680px; margin: 0; color: rgba(255,255,255,.76); font-size: clamp(1rem, 1.35vw, 1.2rem); line-height: 1.62; }
.hero-actions { display: flex; align-items: center; gap: 34px; margin-top: 40px; }
.button { min-height: 54px; display: inline-flex; align-items: center; justify-content: center; gap: 18px; padding: 0 24px; font-weight: 720; font-size: .88rem; transition: transform .35s var(--ease), background .35s, color .35s, box-shadow .35s; }
.button svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; transition: transform .3s; }
.button:hover { transform: translateY(-2px); }
.button:hover svg { transform: translateX(4px); }
.button-primary { background: var(--cyan); color: var(--ink); box-shadow: 0 14px 40px rgba(0,194,255,.16); }
.button-primary:hover { background: var(--white); box-shadow: 0 18px 48px rgba(0,194,255,.28); }
.text-link { display: inline-flex; align-items: center; gap: 12px; font-size: .86rem; font-weight: 650; border-bottom: 1px solid rgba(255,255,255,.42); padding-bottom: 5px; }
.text-link span { color: var(--cyan); transition: transform .3s; }
.text-link:hover span { transform: translateY(3px); }
.hero-status { justify-self: end; align-self: center; display: grid; justify-items: center; gap: 28px; animation: riseIn .9s .3s both var(--ease); }
.status-ring { position: relative; width: 205px; aspect-ratio: 1; display: grid; place-content: center; text-align: center; border: 1px solid rgba(255,255,255,.26); border-radius: 50%; background: rgba(6,19,31,.18); backdrop-filter: blur(5px); }
.status-ring::before { content: ""; position: absolute; inset: 15px; border: 1px solid rgba(0,194,255,.35); border-radius: inherit; }
.status-orbit { position: absolute; inset: -5px; border: 1px dashed rgba(255,255,255,.16); border-radius: 50%; animation: rotate 20s linear infinite reverse; }
.status-orbit::after { content: ""; position: absolute; top: 16px; right: 28px; width: 8px; height: 8px; background: var(--cyan); border-radius: 50%; box-shadow: 0 0 18px var(--cyan); }
.status-ring strong { position: relative; font-size: 4.4rem; line-height: .9; font-weight: 400; letter-spacing: -.07em; }
.status-ring small { position: relative; margin-top: 8px; color: rgba(255,255,255,.65); font-size: .7rem; line-height: 1.35; text-transform: uppercase; letter-spacing: .14em; }
.status-note { display: flex; align-items: flex-start; gap: 10px; padding: 0 10px; color: rgba(255,255,255,.66); font-size: .76rem; }
.status-note p { margin: 0; }
.status-note b { color: var(--white); }
.status-dot { flex: 0 0 auto; width: 8px; height: 8px; margin-top: 5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 14px rgba(0,194,255,.9); }
.hero-footer { position: absolute; left: 50%; bottom: 0; z-index: 3; height: 104px; display: flex; justify-content: space-between; align-items: center; transform: translateX(-50%); border-top: 1px solid rgba(255,255,255,.18); color: rgba(255,255,255,.6); }
.hero-proof { display: grid; gap: 4px; text-transform: uppercase; letter-spacing: .13em; font-size: .62rem; }
.hero-proof strong { color: var(--white); font-size: .84rem; letter-spacing: .08em; }
.hero-scroll { display: flex; align-items: center; gap: 10px; font-size: .67rem; text-transform: uppercase; letter-spacing: .16em; }
.hero-scroll span { width: 1px; height: 36px; background: linear-gradient(var(--cyan) 50%, rgba(255,255,255,.2) 50%); background-size: 100% 200%; animation: scrollLine 2s infinite; }

.intro { padding: 140px 0 0; background: var(--paper); }
.intro-grid { display: grid; grid-template-columns: 150px minmax(360px, 1fr) 420px; gap: 64px; align-items: start; }
.section-index { display: flex; align-items: center; gap: 12px; color: var(--muted); }
.section-index span { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--blue); font-size: .7rem; font-weight: 760; }
.section-index p { margin: 0; font-size: .72rem; text-transform: uppercase; letter-spacing: .14em; }
.intro-copy h2, .method h2, .clients h2, .contact h2 { margin-bottom: 30px; font-size: clamp(2.5rem, 4.5vw, 4.6rem); font-weight: 540; }
.intro-copy > p:last-child { max-width: 640px; margin: 0; color: var(--muted); font-size: 1.05rem; line-height: 1.8; }
.intro-visual { position: relative; padding: 32px 20px 0; }
.equipment-frame { min-height: 340px; display: flex; align-items: flex-end; background: var(--white); border: 1px solid rgba(6,19,31,.08); overflow: hidden; }
.equipment-frame::before { content: ""; position: absolute; inset: 62px 52px 84px; border-radius: 50%; background: rgba(0,194,255,.08); filter: blur(32px); }
.equipment-frame img { position: relative; width: 118%; max-width: none; margin-left: -10%; transform: translateY(1px); filter: drop-shadow(0 30px 25px rgba(6,19,31,.17)); }
.efficiency-card { position: absolute; left: -36px; bottom: -46px; display: grid; grid-template-columns: 42px 1fr; column-gap: 14px; width: 250px; padding: 22px; background: var(--white); box-shadow: 0 22px 50px rgba(6,19,31,.13); }
.efficiency-card svg { grid-row: 1 / 3; width: 34px; fill: none; stroke: var(--blue); stroke-width: 1.4; }
.efficiency-card span { color: var(--muted); font-size: .7rem; }
.efficiency-card b { font-size: .8rem; }
.capability-strip { margin-top: 132px; padding: 25px 0; overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--white); }
.capability-track { width: max-content; display: flex; align-items: center; gap: 34px; animation: marquee 35s linear infinite; white-space: nowrap; }
.capability-track span { font-size: 1.03rem; font-weight: 650; }
.capability-track i { color: var(--cyan); font-size: .56rem; font-style: normal; }

.solutions { padding: 138px 0 150px; background: var(--ink); color: var(--white); overflow: hidden; }
.solutions::before { content: ""; position: absolute; right: -140px; top: -220px; width: 600px; height: 600px; border-radius: 50%; background: rgba(0,194,255,.08); filter: blur(80px); }
.section-head { position: relative; display: grid; grid-template-columns: 150px 1fr 340px; gap: 64px; align-items: end; margin-bottom: 76px; }
.section-index-light { color: rgba(255,255,255,.5); }
.section-index-light span { border-color: rgba(255,255,255,.18); color: var(--cyan); }
.kicker-light { color: var(--cyan); }
.section-head h2 { margin: 0; font-size: clamp(2.6rem, 4.3vw, 4.5rem); font-weight: 520; }
.section-summary { margin: 0; color: rgba(255,255,255,.58); font-size: .96rem; line-height: 1.75; }
.services-experience { display: grid; grid-template-columns: 370px 1fr; border-top: 1px solid rgba(255,255,255,.14); }
.service-tabs { border-right: 1px solid rgba(255,255,255,.14); }
.service-tab { width: 100%; min-height: 84px; display: grid; grid-template-columns: 36px 1fr 24px; align-items: center; gap: 10px; padding: 0 26px 0 0; color: rgba(255,255,255,.48); background: transparent; border: 0; border-bottom: 1px solid rgba(255,255,255,.14); cursor: pointer; text-align: left; transition: color .35s, padding-left .35s var(--ease), background .35s; }
.service-tab span { font-size: .65rem; letter-spacing: .1em; }
.service-tab b { font-size: .98rem; font-weight: 520; }
.service-tab i { opacity: 0; color: var(--cyan); font-style: normal; transform: translate(-8px, 8px); transition: opacity .3s, transform .3s; }
.service-tab:hover, .service-tab:focus-visible, .service-tab.is-active { color: var(--white); padding-left: 14px; background: rgba(255,255,255,.025); }
.service-tab.is-active span { color: var(--cyan); }
.service-tab.is-active i { opacity: 1; transform: none; }
.service-panel { display: grid; grid-template-columns: minmax(320px, 1.2fr) 1fr; min-height: 420px; }
.service-panel.is-changing { animation: panelPulse .46s var(--ease); }
.service-image-wrap { position: relative; min-height: 420px; overflow: hidden; }
.service-image-wrap::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(6,19,31,.28), transparent 50%); }
.service-image-wrap img { width: 100%; height: 100%; object-fit: cover; transition: opacity .25s, transform .65s var(--ease); }
.service-panel.is-changing img { transform: scale(1.04); }
.image-corner { position: absolute; z-index: 2; width: 30px; height: 30px; border-color: var(--cyan); border-style: solid; }
.image-corner-a { top: 18px; left: 18px; border-width: 1px 0 0 1px; }
.image-corner-b { right: 18px; bottom: 18px; border-width: 0 1px 1px 0; }
.service-detail { display: flex; flex-direction: column; justify-content: center; padding: 54px; background: var(--ink-soft); }
.service-number { color: var(--cyan); font-size: .68rem; letter-spacing: .15em; }
.service-detail h3 { margin: 15px 0 22px; font-size: clamp(2rem, 3.2vw, 3.2rem); font-weight: 520; }
.service-detail > p:not(.service-number) { margin: 0 0 28px; color: rgba(255,255,255,.62); line-height: 1.7; }
.service-detail ul { margin: 0; padding: 0; list-style: none; }
.service-detail li { position: relative; padding: 10px 0 10px 24px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.82); font-size: .83rem; }
.service-detail li::before { content: "+"; position: absolute; left: 0; color: var(--cyan); }

.method { padding: 150px 0; background: var(--paper); }
.method-grid { display: grid; grid-template-columns: minmax(340px, .85fr) minmax(460px, 1.15fr); gap: 120px; align-items: start; }
.method-sticky { position: sticky; top: 120px; }
.method-sticky .section-index { margin-bottom: 90px; }
.method-sticky > p:not(.kicker) { max-width: 470px; color: var(--muted); line-height: 1.75; }
.text-link-dark { margin-top: 25px; border-color: rgba(6,19,31,.24); }
.text-link-dark span { color: var(--blue); }
.text-link-dark:hover span { transform: translateX(4px); }
.method-steps { border-top: 1px solid var(--line); }
.method-step { min-height: 230px; display: grid; grid-template-columns: 94px 1fr; gap: 24px; align-items: center; border-bottom: 1px solid var(--line); transition: background .4s, padding .4s var(--ease); }
.method-step:hover { padding-left: 18px; background: rgba(255,255,255,.65); }
.step-number { position: relative; width: 66px; height: 66px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; }
.step-number::after { content: ""; position: absolute; inset: 7px; border: 1px dashed rgba(0,121,168,.32); border-radius: inherit; transition: transform .5s; }
.method-step:hover .step-number::after { transform: rotate(90deg); }
.step-number span { color: var(--blue); font-size: .72rem; font-weight: 760; }
.method-step p { margin: 0 0 5px; color: var(--blue); text-transform: uppercase; letter-spacing: .16em; font-size: .65rem; font-weight: 720; }
.method-step h3 { margin-bottom: 14px; font-size: 2.2rem; font-weight: 520; }
.method-step div > span { display: block; max-width: 490px; color: var(--muted); line-height: 1.65; }

.field-story { min-height: 680px; display: grid; grid-template-columns: 1fr 1fr; background: #0a1d2c; color: var(--white); overflow: hidden; }
.field-image { position: relative; min-height: 680px; overflow: hidden; }
.field-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 70%, #0a1d2c); }
.field-image img { width: 100%; height: 115%; object-fit: cover; object-position: 50% 60%; transform: translateY(-6%); filter: saturate(.8) contrast(1.05); }
.field-content { align-self: center; max-width: 660px; padding: 80px 9vw 80px 8vw; }
.field-content blockquote { margin-bottom: 64px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.4rem, 4vw, 4.3rem); font-weight: 400; line-height: 1.06; }
.field-facts { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(255,255,255,.16); }
.field-facts div { display: flex; align-items: center; gap: 16px; padding: 25px 18px 0 0; }
.field-facts div + div { border-left: 1px solid rgba(255,255,255,.16); padding-left: 26px; }
.field-facts strong { color: var(--cyan); font-size: 2.2rem; font-weight: 450; }
.field-facts span { color: rgba(255,255,255,.56); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; }

.clients { padding: 150px 0; background: var(--white); }
.clients-head { display: grid; grid-template-columns: 150px 1fr 350px; gap: 64px; align-items: end; }
.clients-head h2 { max-width: 700px; margin: 0; }
.clients-head > p { margin: 0; color: var(--muted); line-height: 1.75; }
.logo-wall { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 80px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.logo-item { min-height: 150px; display: grid; place-items: center; padding: 32px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .35s, transform .35s var(--ease); }
.logo-item:hover { background: var(--paper); transform: translateY(-3px); }
.logo-item img { max-width: 128px; max-height: 58px; object-fit: contain; filter: grayscale(1); opacity: .64; transition: filter .35s, opacity .35s, transform .35s; }
.logo-item:hover img { filter: grayscale(0); opacity: 1; transform: scale(1.04); }
.logo-item.logo-wide img { max-width: 170px; }
.credential-band { margin-top: 42px; display: grid; grid-template-columns: 1fr 420px; gap: 60px; align-items: center; padding: 38px 44px; background: var(--paper); border-left: 3px solid var(--cyan); }
.credential-band > div { display: grid; grid-template-columns: 48px 1fr; column-gap: 18px; }
.credential-icon { grid-row: 1 / 3; width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; color: var(--ink); background: var(--cyan); font-weight: 800; }
.credential-band p { margin: 0; color: var(--muted); font-size: .84rem; line-height: 1.6; }
.credential-band strong { font-size: 1.05rem; }

.contact { position: relative; padding: 150px 0; overflow: hidden; background: var(--ink); color: var(--white); }
.contact::before { content: ""; position: absolute; inset: 0; opacity: .08; background-image: linear-gradient(rgba(255,255,255,.15) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.15) 1px, transparent 1px); background-size: 72px 72px; }
.contact-glow { position: absolute; left: -180px; bottom: -250px; width: 650px; height: 650px; border-radius: 50%; background: rgba(0,194,255,.1); filter: blur(80px); }
.contact-grid { position: relative; display: grid; grid-template-columns: 1.25fr .75fr; gap: 110px; align-items: center; }
.contact-copy h2 { max-width: 750px; }
.contact-copy > p:not(.kicker) { max-width: 600px; color: rgba(255,255,255,.6); font-size: 1.02rem; line-height: 1.75; }
.contact-actions { display: flex; align-items: center; gap: 36px; margin-top: 42px; }
.phone-link { display: grid; gap: 4px; }
.phone-link small { color: rgba(255,255,255,.5); font-size: .7rem; text-transform: uppercase; letter-spacing: .13em; }
.phone-link strong { font-size: 1.05rem; }
.contact-card { padding: 38px; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.14); backdrop-filter: blur(14px); }
.contact-card-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,.14); font-size: .7rem; text-transform: uppercase; letter-spacing: .15em; }
.contact-card-top .status-dot { display: block; margin: 0; }
.contact-card ul { margin: 0; padding: 0; list-style: none; }
.contact-card li { display: grid; grid-template-columns: 88px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.contact-card li > span { color: rgba(255,255,255,.44); font-size: .68rem; text-transform: uppercase; letter-spacing: .12em; }
.contact-card li a, .contact-card address { font-size: .87rem; line-height: 1.55; }
.contact-card li a:hover { color: var(--cyan); }
.map-link { display: flex; justify-content: space-between; padding-top: 26px; color: var(--cyan); font-size: .82rem; font-weight: 720; }

.site-footer { padding: 60px 0 26px; background: #030b12; color: var(--white); }
.brand-footer .brand-logo { width: 184px; filter: brightness(0) invert(1) grayscale(1); opacity: .9; }
.footer-top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding-bottom: 46px; }
.footer-top p { margin: 0; color: rgba(255,255,255,.48); font-size: .72rem; letter-spacing: .08em; }
.footer-top > a:last-child { justify-self: end; color: rgba(255,255,255,.65); font-size: .75rem; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.38); font-size: .68rem; }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes heroZoom { to { transform: scale(1); } }
@keyframes rotate { to { transform: rotate(360deg); } }
@keyframes riseIn { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scrollLine { 0% { background-position: 0 100%; } 100% { background-position: 0 -100%; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes panelPulse { 0% { opacity: .66; transform: translateY(5px); } 100% { opacity: 1; transform: none; } }

@media (max-width: 1100px) {
  :root { --shell: min(100% - 48px, 980px); }
  .site-header { padding-inline: 24px; }
  .desktop-nav { gap: 22px; }
  .intro-grid { grid-template-columns: 100px 1fr 340px; gap: 38px; }
  .section-head, .clients-head { grid-template-columns: 100px 1fr 290px; gap: 38px; }
  .services-experience { grid-template-columns: 310px 1fr; }
  .service-panel { grid-template-columns: 1fr; }
  .service-image-wrap { min-height: 310px; }
  .service-detail { padding: 38px; }
  .method-grid { gap: 70px; }
  .field-content { padding-inline: 6vw; }
  .contact-grid { gap: 60px; }
}

@media (max-width: 840px) {
  :root { --header-h: 72px; --shell: calc(100% - 40px); }
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav, .header-cta { display: none; }
  .menu-button { justify-self: end; width: 42px; height: 42px; display: grid; place-content: center; gap: 7px; padding: 0; border: 1px solid rgba(255,255,255,.25); background: transparent; color: currentColor; }
  .is-scrolled .menu-button { border-color: rgba(6,19,31,.2); }
  .menu-button span { width: 18px; height: 1px; background: currentColor; transition: transform .35s var(--ease); }
  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .mobile-menu { position: fixed; inset: 0; z-index: 90; display: flex; flex-direction: column; justify-content: center; padding: 100px 32px 40px; background: rgba(6,19,31,.98); color: var(--white); opacity: 0; visibility: hidden; transform: translateY(-12px); transition: opacity .4s, visibility .4s, transform .4s var(--ease); }
  .mobile-menu.is-open { opacity: 1; visibility: visible; transform: none; }
  .mobile-menu nav { display: grid; }
  .mobile-menu nav a { display: flex; align-items: baseline; gap: 20px; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,.12); font-size: clamp(2rem, 8vw, 3.2rem); line-height: 1; }
  .mobile-menu nav span { color: var(--cyan); font-size: .65rem; letter-spacing: .1em; }
  .mobile-contact { margin-top: 34px; display: grid; gap: 8px; color: rgba(255,255,255,.55); font-size: .78rem; }
  .hero { height: auto; min-height: 780px; }
  .hero-media img { object-position: 52% 50%; }
  .hero-overlay { background: linear-gradient(90deg, rgba(3,13,22,.96), rgba(3,13,22,.68)), linear-gradient(0deg, rgba(3,13,22,.92), transparent 50%); }
  .hero-content { grid-template-columns: 1fr; gap: 40px; align-content: center; padding-block: 130px 125px; }
  .hero h1 { font-size: clamp(3.3rem, 12vw, 5.5rem); }
  .hero-status { display: none; }
  .air-lines { width: 90vw; right: -36vw; }
  .intro { padding-top: 100px; }
  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .intro-copy { max-width: 680px; }
  .intro-visual { max-width: 520px; margin-left: auto; }
  .section-head, .clients-head { grid-template-columns: 1fr; gap: 28px; }
  .section-summary, .clients-head > p { max-width: 540px; }
  .services-experience { grid-template-columns: 1fr; }
  .service-tabs { display: flex; overflow-x: auto; border-right: 0; scrollbar-width: none; }
  .service-tabs::-webkit-scrollbar { display: none; }
  .service-tab { min-width: 230px; min-height: 72px; padding-right: 18px; border-right: 1px solid rgba(255,255,255,.12); }
  .service-panel { grid-template-columns: 1.1fr .9fr; }
  .method-grid { grid-template-columns: 1fr; gap: 70px; }
  .method-sticky { position: static; }
  .method-sticky .section-index { margin-bottom: 55px; }
  .field-story { grid-template-columns: 1fr; }
  .field-image { min-height: 480px; }
  .field-image::after { background: linear-gradient(0deg, #0a1d2c, transparent 45%); }
  .field-content { max-width: 780px; padding: 80px var(--shell); width: 100%; margin-inline: auto; }
  .logo-wall { grid-template-columns: repeat(2, 1fr); }
  .credential-band { grid-template-columns: 1fr; gap: 25px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-card { max-width: 580px; }
  .footer-top { grid-template-columns: 1fr auto; }
  .footer-top p { display: none; }
}

@media (max-width: 600px) {
  :root { --shell: calc(100% - 32px); }
  .brand-symbol { width: 34px; height: 34px; }
  .brand-logo { width: 158px; }
  .brand-copy strong { font-size: .9rem; }
  .brand-copy small { font-size: .53rem; }
  .hero { min-height: 750px; }
  .hero h1 { font-size: clamp(3rem, 14.3vw, 4.2rem); line-height: .96; }
  .hero-lead { font-size: .98rem; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 24px; margin-top: 32px; }
  .hero-footer { height: 84px; }
  .hero-scroll { display: none; }
  .intro-copy h2, .method h2, .clients h2, .contact h2 { font-size: clamp(2.35rem, 11vw, 3.3rem); }
  .intro-visual { width: 100%; padding-inline: 0; }
  .equipment-frame { min-height: 280px; }
  .efficiency-card { left: 18px; bottom: -50px; }
  .capability-strip { margin-top: 120px; }
  .solutions, .method, .clients, .contact { padding-block: 100px; }
  .section-head { margin-bottom: 52px; }
  .services-experience { border-top: 0; }
  .service-tabs { margin-inline: -16px; padding-left: 16px; border-top: 1px solid rgba(255,255,255,.12); }
  .service-tab { min-width: 204px; }
  .service-panel { grid-template-columns: 1fr; }
  .service-image-wrap { min-height: 290px; }
  .service-detail { padding: 32px 24px; }
  .method-step { grid-template-columns: 64px 1fr; gap: 14px; min-height: 220px; }
  .step-number { width: 52px; height: 52px; }
  .method-step h3 { font-size: 1.85rem; }
  .field-image { min-height: 410px; }
  .field-content { padding: 58px 16px 84px; width: var(--shell); }
  .field-content blockquote { margin-bottom: 46px; font-size: 2.55rem; }
  .field-facts { grid-template-columns: 1fr; }
  .field-facts div + div { border-left: 0; padding-left: 0; }
  .logo-wall { margin-top: 55px; }
  .logo-item { min-height: 120px; padding: 24px; }
  .credential-band { padding: 28px 24px; }
  .credential-band > div { grid-template-columns: 40px 1fr; }
  .credential-icon { width: 40px; height: 40px; }
  .contact-actions { align-items: flex-start; flex-direction: column; }
  .contact-card { padding: 28px 22px; }
  .contact-card li { grid-template-columns: 72px 1fr; }
  .footer-top { padding-bottom: 34px; }
  .footer-bottom { display: grid; gap: 8px; }
  .footer-bottom span:nth-child(2) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}