/* SABAH Engineering Group — цвета из фирменного гайда */
:root {
  --navy: #012156;
  --navy-2: #0A2F6E;
  --navy-3: #041A44;
  --orange: #FC7E15;
  --orange-2: #E86D06;
  --light: #EEF0F2;
  --ink: #16213A;
  --muted: #5B6680;
  --line: #DDE2EA;
  --white: #fff;
  --radius: 14px;
  --shadow: 0 18px 40px rgba(1, 33, 86, .12);
  --head: "Montserrat", "Segoe UI", Arial, sans-serif;
  --body: "Inter", -apple-system, "Segoe UI", Arial, sans-serif;
  /* центр шестерёнки внутри значка (для вращения) */
  --gear-origin: 54.57% 46.04%;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; background: var(--white); color: var(--ink); font-family: var(--body); font-size: 16px; line-height: 1.6; overflow-x: hidden; }
body.is-loading { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--head); line-height: 1.15; margin: 0; color: var(--navy); }
p { margin: 0; }
svg { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 110px 0; }

/* ---------- Кнопки ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 26px; border-radius: 8px; border: 2px solid transparent; font-family: var(--head); font-weight: 700; font-size: 15px; letter-spacing: .02em; cursor: pointer; transition: transform .25s, background .25s, color .25s, border-color .25s, box-shadow .25s; }
.btn-accent { background: var(--orange); color: #fff; /* box-shadow: 0 10px 24px rgba(252, 126, 21, .35); */ }
.btn-accent:hover { background: var(--orange-2); transform: translateY(-2px); /* box-shadow: 0 14px 30px rgba(252, 126, 21, .45); */ }
.btn-ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-ghost:hover { background: #fff; color: var(--navy); transform: translateY(-2px); }

/* ---------- Загрузка ---------- */
.loader { position: fixed; inset: 0; z-index: 1000; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px; background: radial-gradient(circle at 50% 45%, #fff 0%, var(--light) 70%); transition: opacity .6s ease, visibility .6s ease; }
.loader.done { opacity: 0; visibility: hidden; }
.loader-mark { position: relative; width: 132px; aspect-ratio: 564 / 543; animation: pop .7s cubic-bezier(.2, .9, .3, 1.3) both; }
.loader-mark img { position: absolute; inset: 0; width: 100%; height: 100%; }
.loader-gear { transform-origin: var(--gear-origin); animation: spin 1.6s cubic-bezier(.55, .1, .45, .9) infinite; }
.loader-se { animation: pulse 1.6s ease-in-out infinite; }
.loader-name { font-family: var(--head); font-weight: 800; font-size: 22px; letter-spacing: .12em; color: var(--navy); text-align: center; animation: rise .8s .15s both; }
.loader-name span { display: block; font-size: 11px; letter-spacing: .32em; color: var(--muted); font-weight: 700; margin-top: 4px; }
.loader-bar { width: 160px; height: 3px; border-radius: 3px; background: var(--line); overflow: hidden; }
.loader-bar span { display: block; width: 40%; height: 100%; background: var(--orange); border-radius: 3px; animation: bar 1.2s ease-in-out infinite; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(.94); } }
@keyframes pop { from { opacity: 0; transform: scale(.6) rotate(-30deg); } to { opacity: 1; transform: none; } }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes bar { 0% { transform: translateX(-110%); } 100% { transform: translateX(260%); } }

/* ---------- Верхняя полоса ---------- */
.topbar { background: var(--navy-3); color: rgba(255,255,255,.82); font-size: 13.5px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 42px; }
.topbar-left { display: flex; flex-wrap: wrap; gap: 6px 26px; }
.topbar-left a, .topbar-left > span { display: inline-flex; align-items: center; gap: 8px; }
.topbar-left a:hover { color: var(--orange); }
.topbar svg { color: var(--orange); font-size: 15px; }
.lang { display: inline-flex; border: 1px solid rgba(255,255,255,.2); border-radius: 6px; overflow: hidden; }
.lang button { padding: 5px 10px; border: 0; background: transparent; color: inherit; font: 600 12px var(--body); letter-spacing: .06em; cursor: pointer; transition: background .2s, color .2s; }
.lang button:hover { color: var(--orange); }
.lang button.active { background: var(--orange); color: #fff; }
.lang-mobile { display: none; }

/* ---------- Шапка ---------- */
.header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(10px); border-bottom: 1px solid transparent; transition: box-shadow .3s, border-color .3s; }
.header.scrolled { /* box-shadow: 0 8px 30px rgba(1,33,86,.1); */ border-color: var(--line); }
.header-inner { display: flex; align-items: center; gap: 28px; height: 84px; transition: height .3s; }
.header.scrolled .header-inner { height: 70px; }
.brand img { height: 46px; width: auto; transition: height .3s; }
.header.scrolled .brand img { height: 40px; }
.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav > a { position: relative; padding: 10px 14px; font-family: var(--head); font-weight: 600; font-size: 14.5px; color: var(--navy); transition: color .2s; }
.nav > a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px; background: var(--orange); transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.nav > a:hover, .nav > a.active { color: var(--orange); }
.nav > a:hover::after, .nav > a.active::after { transform: scaleX(1); }
.header-cta { padding: 11px 20px; font-size: 14px; }
.burger { display: none; width: 44px; height: 44px; margin-left: auto; padding: 10px; border: 0; background: transparent; cursor: pointer; }
.burger span { display: block; height: 2px; margin: 5px 0; background: var(--navy); border-radius: 2px; transition: transform .3s, opacity .3s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: calc(100vh - 126px); min-height: calc(100svh - 126px); display: flex; align-items: center; overflow: hidden; color: #fff; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; transform: scale(1.08); animation: heroZoom 14s ease-out forwards; }
@keyframes heroZoom { to { transform: scale(1); } }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(1,33,86,.96) 0%, rgba(1,33,86,.86) 42%, rgba(1,33,86,.35) 75%, rgba(1,33,86,.15) 100%); }
.hero-gear { position: absolute; right: -170px; top: 50%; width: 620px; margin-top: -300px; opacity: .1; filter: brightness(0) invert(1); transform-origin: var(--gear-origin); animation: spin 60s linear infinite; pointer-events: none; }
.hero-stripes { position: absolute; right: 0; bottom: 0; width: 46%; height: 120px; pointer-events: none; }
.hero-stripes span { position: absolute; bottom: -40px; width: 70px; height: 220px; transform: skewX(-38deg); }
.hero-stripes span:nth-child(1) { right: 22%; background: var(--orange); }
.hero-stripes span:nth-child(2) { right: 12%; background: var(--navy); border: 2px solid rgba(255,255,255,.18); }
.hero-stripes span:nth-child(3) { right: 2%; background: var(--orange); opacity: .85; }
.hero-content { position: relative; padding-top: 70px; padding-bottom: 110px; }
.eyebrow { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 20px; font-family: var(--head); font-weight: 700; font-size: 13px; letter-spacing: .24em; text-transform: uppercase; color: var(--orange); }
.eyebrow::before { content: ""; width: 38px; height: 3px; background: var(--orange); border-radius: 2px; }
.hero h1 { max-width: 760px; color: #fff; font-size: clamp(34px, 5.2vw, 62px); font-weight: 800; letter-spacing: -.01em; }
.hero-lead { max-width: 580px; margin-top: 22px; font-size: clamp(16px, 1.6vw, 19px); color: rgba(255,255,255,.86); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.scroll-hint { position: absolute; left: 50%; bottom: 26px; width: 26px; height: 42px; margin-left: -13px; border: 2px solid rgba(255,255,255,.6); border-radius: 14px; }
.scroll-hint span { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px; background: var(--orange); border-radius: 2px; animation: wheel 1.8s infinite; }
@keyframes wheel { 0% { opacity: 1; transform: translateY(0); } 80% { opacity: 0; transform: translateY(14px); } 100% { opacity: 0; } }

/* ---------- Преимущества ---------- */
.features { position: relative; z-index: 2; margin-top: -70px; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature { padding: 34px 30px; background: #fff; border-radius: var(--radius); /* box-shadow: var(--shadow); */ border-bottom: 3px solid transparent; transition: transform .35s, border-color .35s; }
.feature:hover { transform: translateY(-6px); border-color: var(--orange); }
.feature-icon { display: grid; place-items: center; width: 58px; height: 58px; margin-bottom: 20px; border-radius: 12px; background: rgba(252,126,21,.12); color: var(--orange); font-size: 28px; transition: background .35s, color .35s, transform .5s; }
.feature:hover .feature-icon { background: var(--orange); color: #fff; transform: rotate(-8deg) scale(1.05); }
.feature h3 { font-size: 19px; margin-bottom: 10px; }
.feature p { color: var(--muted); font-size: 15px; }

/* ---------- Заголовки секций ---------- */
.section-tag { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 14px; font-family: var(--head); font-weight: 700; font-size: 13px; letter-spacing: .2em; text-transform: uppercase; color: var(--orange); }
.section-tag::before { content: ""; width: 28px; height: 3px; background: currentColor; border-radius: 2px; }
.section h2 { font-size: clamp(28px, 3.4vw, 42px); font-weight: 800; }
.section-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section-head .section-tag::after { content: ""; width: 28px; height: 3px; background: currentColor; border-radius: 2px; }
.section-lead { margin-top: 16px; color: var(--muted); font-size: 17px; }
.section-head.light h2 { color: #fff; }

/* ---------- О компании ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 70px; align-items: center; }
.about-media { position: relative; padding: 0 0 70px 0; }
.about-img-main { width: 88%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); /* box-shadow: var(--shadow); */ }
.about-img-sub { position: absolute; right: 0; bottom: 0; width: 55%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); border: 6px solid #fff; /* box-shadow: var(--shadow); */ }
.about-badge { position: absolute; left: 22px; bottom: 30px; display: flex; align-items: center; gap: 10px; padding: 12px 18px 12px 12px; background: var(--navy); color: #fff; border-radius: 12px; font-family: var(--head); font-weight: 700; font-size: 14px; /* box-shadow: var(--shadow); */ }
.about-badge img { width: 34px; height: 34px; padding: 3px; background: #fff; border-radius: 8px; }
.about-text h2 { margin-bottom: 20px; }
.about-text > p { color: var(--muted); }
.checks { list-style: none; margin: 26px 0 30px; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; }
.checks li { position: relative; padding-left: 32px; font-weight: 500; color: var(--navy); font-size: 15px; }
.checks li::before { content: ""; position: absolute; left: 0; top: 2px; width: 20px; height: 20px; border-radius: 50%; background: var(--orange) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center / 12px no-repeat; }
.founder { display: inline-flex; align-items: center; gap: 14px; padding: 14px 22px 14px 14px; border: 1px solid var(--line); border-radius: 12px; }
.founder-avatar { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; background: var(--navy); color: #fff; font-family: var(--head); font-weight: 800; }
.founder-name { font-family: var(--head); font-weight: 700; color: var(--navy); }
.founder-role { font-size: 14px; color: var(--orange); font-weight: 600; }

/* ---------- Услуги ---------- */
.services { background: var(--light); }
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.service { position: relative; display: flex; flex-direction: column; background: #fff; border-radius: var(--radius); overflow: hidden; /* box-shadow: 0 8px 24px rgba(1,33,86,.07); */ transition: transform .35s, box-shadow .35s; }
.service:hover { transform: translateY(-8px); /* box-shadow: var(--shadow); */ }
.service-img { aspect-ratio: 4 / 3; overflow: hidden; }
.service-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s; }
.service:hover .service-img img { transform: scale(1.08); }
.service-img img[src*="service-tech"] { object-position: right center; }
.service-body { position: relative; flex: 1; padding: 28px 24px 30px; }
.service-body::before { content: ""; position: absolute; left: 0; top: 0; width: 0; height: 3px; background: var(--orange); transition: width .45s; }
.service:hover .service-body::before { width: 100%; }
.service-num { position: absolute; right: 18px; top: -26px; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 12px; background: var(--navy); color: #fff; font-family: var(--head); font-weight: 800; /* box-shadow: 0 8px 18px rgba(1,33,86,.3); */ transition: background .3s, transform .4s; }
.service:hover .service-num { background: var(--orange); transform: rotate(-6deg); }
.service h3 { font-size: 18px; margin-bottom: 10px; padding-right: 40px; }
.service p { color: var(--muted); font-size: 15px; }

/* ---------- Отрасли ---------- */
.industries { position: relative; background: var(--navy); overflow: hidden; }
.industries::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(-38deg, transparent 0 60px, rgba(255,255,255,.025) 60px 120px); }
.industries .container { position: relative; }
.industries-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.industry { display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 32px 14px; border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); color: #fff; text-align: center; font-family: var(--head); font-weight: 700; font-size: 15px; transition: background .3s, border-color .3s, transform .35s; }
.industry svg { font-size: 40px; color: var(--orange); transition: transform .5s; }
.industry:hover { background: rgba(255,255,255,.06); border-color: var(--orange); transform: translateY(-6px); }
.industry:hover svg { transform: scale(1.15) rotate(-8deg); }

/* ---------- Процесс ---------- */
.steps { position: relative; list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.steps::before { content: ""; position: absolute; left: 10%; right: 10%; top: 31px; height: 2px; background: repeating-linear-gradient(90deg, var(--orange) 0 10px, transparent 10px 18px); }
.step { position: relative; text-align: center; }
.step-num { position: relative; display: grid; place-items: center; width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%; background: #fff; border: 2px solid var(--orange); color: var(--navy); font-family: var(--head); font-weight: 800; font-size: 22px; transition: background .3s, color .3s, transform .4s; }
.step:hover .step-num { background: var(--orange); color: #fff; transform: scale(1.08); }
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14.5px; }

/* ---------- CTA ---------- */
.cta { position: relative; padding: 80px 0; background: linear-gradient(110deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff; overflow: hidden; }
.cta-stripes span { position: absolute; top: -40px; bottom: -40px; width: 90px; transform: skewX(-38deg); }
.cta-stripes span:nth-child(1) { right: 14%; background: var(--orange); }
.cta-stripes span:nth-child(2) { right: 4%; background: rgba(255,255,255,.08); }
.cta-inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.cta h2 { color: #fff; font-size: clamp(24px, 2.8vw, 34px); font-weight: 800; margin-bottom: 10px; }
.cta p { color: rgba(255,255,255,.8); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; flex: none; margin-right: 20%; }

/* ---------- Контакты ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-grid > div > p { color: var(--muted); margin-top: 16px; }
.contact-cards { display: grid; gap: 14px; margin-top: 30px; }
.contact-card { display: flex; align-items: center; gap: 16px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px; transition: border-color .25s, transform .25s, box-shadow .25s; }
a.contact-card:hover { border-color: var(--orange); transform: translateX(6px); /* box-shadow: 0 8px 20px rgba(1,33,86,.08); */ }
.cc-icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 10px; background: rgba(252,126,21,.12); color: var(--orange); font-size: 21px; flex: none; }
.contact-card small { display: block; color: var(--muted); font-size: 13px; }
.contact-card strong { display: block; color: var(--navy); font-weight: 600; word-break: break-word; }
.contact-form { display: grid; gap: 16px; padding: 36px; background: var(--light); border-radius: var(--radius); border-top: 4px solid var(--orange); }
.contact-form h3 { font-size: 22px; margin-bottom: 4px; }
.contact-form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; color: var(--navy); }
.contact-form input, .contact-form textarea { width: 100%; padding: 13px 14px; border: 1px solid var(--line); border-radius: 8px; background: #fff; font: 400 15px var(--body); color: var(--ink); transition: border-color .2s, box-shadow .2s; resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--orange); /* box-shadow: 0 0 0 3px rgba(252,126,21,.18); */ }
.contact-form .invalid { border-color: #D93025; }
.form-note { font-size: 13px; color: var(--muted); }

/* ---------- Подвал ---------- */
.footer { background: var(--navy-3); color: rgba(255,255,255,.75); padding-top: 70px; font-size: 15px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 50px; }
.footer-logo { width: 230px; margin-bottom: 18px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-grid > div:not(:first-child) { display: grid; align-content: start; gap: 10px; }
.footer a:hover { color: var(--orange); }
.footer-bottom { padding-top: 22px; padding-bottom: 26px; border-top: 1px solid rgba(255,255,255,.1); font-size: 14px; }

/* ---------- Кнопка наверх ---------- */
/* .to-top { position: fixed; right: 22px; bottom: 22px; z-index: 40; display: grid; place-items: center; width: 54px; height: 54px; border-radius: 50%; background: #fff; box-shadow: 0 10px 26px rgba(1,33,86,.25); opacity: 0; visibility: hidden; transform: translateY(20px); transition: opacity .3s, visibility .3s, transform .3s; } */
.to-top.show { opacity: 1; visibility: visible; transform: none; }
/* .to-top img { position: absolute; width: 40px; transform-origin: var(--gear-origin); }
.to-top svg { position: relative; color: var(--orange); font-size: 18px; stroke-width: 3; }
.to-top:hover img { animation: spin 1.2s linear infinite; } */
.to-top-mark { position: relative; width: 38px; aspect-ratio: 564 / 543; }
.to-top-mark img { position: absolute; inset: 0; width: 100%; height: 100%; }
/* .to-top-gear { transform-origin: var(--gear-origin); }
.to-top:hover .to-top-gear { animation: spin 1.2s linear infinite; } */
/* .to-top-mark { transform-origin: var(--gear-origin); } */
/* .to-top:hover .to-top-mark { animation: spin 1.2s linear infinite; } */
/* .to-top-arrow { position: absolute; top: -4px; right: -4px; width: 20px; height: 20px; padding: 3px; border-radius: 50%; background: var(--orange); color: #fff; stroke-width: 3.5; box-shadow: 0 3px 8px rgba(1,33,86,.25); } */

/* 09.11: вертикальная капсула — стрелка над знаком, при наведении знак делает 1 оборот (класс .spin-once из main.js) */
/* .to-top { position: fixed; right: 22px; bottom: 22px; z-index: 40; display: flex; flex-direction: column; align-items: center; gap: 2px; width: 54px; padding: 8px 0 10px; border-radius: 27px; background: #fff; box-shadow: 0 10px 26px rgba(1,33,86,.25); opacity: 0; visibility: hidden; transform: translateY(20px); transition: opacity .3s, visibility .3s, transform .3s, box-shadow .3s; } */
/* .to-top:hover { box-shadow: 0 14px 30px rgba(1,33,86,.32); } */
/* .to-top-arrow { width: 18px; height: 18px; color: var(--orange); stroke-width: 3; transition: transform .3s; } */
/* .to-top:hover .to-top-arrow { transform: translateY(-3px); } */
/* .to-top-mark { transform-origin: var(--gear-origin); } */
/* .to-top-mark.spin-once { animation: spin .9s cubic-bezier(.45, .05, .25, 1) 1; } */
/* 09.11 v3: круглая кнопка — знак внутри + оранжевое кольцо прогресса прокрутки; знак делает 1 оборот при наведении */
.to-top { position: fixed; right: 22px; bottom: 22px; z-index: 40; display: grid; place-items: center; width: 58px; height: 58px; border-radius: 50%; background: #fff; /* box-shadow: 0 10px 26px rgba(1,33,86,.25); */ opacity: 0; visibility: hidden; transform: translateY(20px); transition: opacity .3s, visibility .3s, transform .3s, box-shadow .3s; }
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { /* box-shadow: 0 14px 32px rgba(1,33,86,.35); */ }
.to-top-ring { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); fill: none; stroke-width: 3; }
.to-top-ring .track { stroke: var(--line, #E3E7EE); }
.to-top-ring .bar { stroke: var(--orange); stroke-linecap: round; stroke-dasharray: 100; stroke-dashoffset: 100; transition: stroke-dashoffset .15s linear; }
.to-top-mark { transform-origin: var(--gear-origin); }
.to-top-mark.spin-once { animation: spin .9s cubic-bezier(.45, .05, .25, 1) 1; }

/* ---------- Появление при прокрутке ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s ease, transform .8s cubic-bezier(.2, .7, .2, 1); }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Планшет ---------- */
@media (max-width: 1080px) {
  .header-cta { display: none; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .steps::before { display: none; }
  .about-grid { gap: 44px; }
  .cta-actions { margin-right: 0; }
}

/* ---------- Мобильный ---------- */
@media (max-width: 860px) {
  .section { padding: 80px 0; }
  .topbar-loc, .topbar-left a[href^="mailto"] { display: none; }
  .topbar .lang { display: none; }
  .burger { display: block; }
  /* backdrop-filter у шапки делает её «контейнером» для fixed-меню — меню обрезалось высотой шапки и было прозрачным. На мобилке убираем blur, фон сплошной */
  .header { backdrop-filter: none; -webkit-backdrop-filter: none; background: #fff; }
  .nav { position: fixed; top: 0; right: 0; bottom: 0; width: min(320px, 86vw); flex-direction: column; align-items: stretch; gap: 0; padding: 96px 26px 30px; background: #fff; /* box-shadow: -20px 0 40px rgba(1,33,86,.18); */ transform: translateX(105%); transition: transform .4s cubic-bezier(.2, .8, .2, 1); z-index: 60; }
  .nav.open { transform: none; }
  .nav > a { padding: 15px 4px; font-size: 17px; border-bottom: 1px solid var(--line); }
  .nav > a::after { display: none; }
  .lang-mobile { display: inline-flex; align-self: flex-start; margin-top: 22px; border-color: var(--line); color: var(--navy); }
  .burger { position: relative; z-index: 70; }
  .header-inner { height: 70px; }
  .brand img { height: 38px; }
  .hero { min-height: auto; }
  .hero-content { padding-top: 70px; padding-bottom: 130px; }
  .hero-shade { background: linear-gradient(180deg, rgba(1,33,86,.9) 0%, rgba(1,33,86,.82) 60%, rgba(1,33,86,.7) 100%); }
  .hero-gear { width: 380px; right: -150px; margin-top: -180px; }
  .hero-stripes { width: 70%; height: 80px; }
  .hero-stripes span { width: 44px; height: 140px; }
  .features { margin-top: -60px; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-media { padding-bottom: 50px; }
  .checks { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-stripes span:nth-child(1) { right: -6%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 40px; }
  .hero-actions .btn { flex: 1 1 100%; }
  /* Мобилка: кнопки героя идут в столбик — даём место снизу, иначе 2-я кнопка уходила под карточки */
  .hero-content { padding-bottom: 150px; }
  .scroll-hint { display: none; }
  /* Карточки преимуществ: без тени на белом фоне сливались — тонкая рамка и компактнее */
  .feature { padding: 26px 22px; border: 1px solid var(--line); border-bottom-width: 3px; }
  /* CTA: кнопки на всю ширину в столбик, текст в одну строку */
  .cta-actions .btn { flex: 1 1 100%; white-space: nowrap; }
  .services-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .industry { padding: 24px 10px; font-size: 14px; }
  .steps { grid-template-columns: 1fr; text-align: left; row-gap: 22px; }
  .step { display: grid; grid-template-columns: 56px 1fr; column-gap: 16px; text-align: left; }
  .step-num { grid-row: span 2; width: 52px; height: 52px; margin: 0; font-size: 19px; }
  .contact-form { padding: 26px 20px; }
  .cta-actions { width: 100%; }
  .cta-actions .btn { flex: 1; }
  .cta-stripes span:nth-child(1) { right: -22%; opacity: .55; }
  .cta-stripes span:nth-child(2) { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .about-badge { left: 10px; bottom: 16px; }
}

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