@font-face {
  font-family: 'Hanken Grotesk';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(../fonts/hanken-grotesk.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #0a0b0a;
  --surface: #101110;
  --line: rgba(237, 235, 230, 0.09);
  --line-strong: rgba(237, 235, 230, 0.18);
  --text: #edebe6;
  --muted: #8f8d88;
  --dim: #62615d;
  --radius: 22px;
  --container: 1360px;
  --gutter: clamp(20px, 4vw, 56px);
  --header-h: 72px;
  --font: 'Hanken Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 17px/1.6 var(--font);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-weight: 500; letter-spacing: -0.035em; line-height: 1.04; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--text); color: var(--bg); }
:focus-visible { outline: 2px solid var(--text); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: calc(var(--container) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 100; padding: 10px 16px; background: var(--text); color: var(--bg); border-radius: 999px; }
.skip:focus { left: 8px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 50px; padding: 0 24px; border-radius: 999px; border: 1px solid transparent;
  font: 500 16px/1 var(--font); white-space: nowrap; cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease);
}
.btn svg { width: 16px; height: 16px; transition: transform .2s var(--ease); }
.btn:hover svg { transform: translate(2px, -2px); }
.btn--primary { background: var(--text); color: var(--bg); }
.btn--primary:hover { background: #fff; }
.btn--ghost { border-color: var(--line-strong); }
.btn--ghost:hover { border-color: rgba(237, 235, 230, 0.4); }

/* шапка: только текстовые ссылки, без кнопок */
.header { position: fixed; inset: 0 0 auto; z-index: 50; height: var(--header-h); transition: background-color .25s var(--ease); }
.header.is-scrolled, .menu-open .header { background: rgba(10, 11, 10, 0.96); }
.header__inner { display: flex; align-items: center; height: 100%; }
.logo { display: inline-flex; align-items: center; gap: 10px; font: 600 19px/1 var(--font); letter-spacing: -0.03em; }
.logo svg { width: 26px; height: 26px; }
.nav { display: flex; gap: 36px; margin-left: auto; }
.nav a { font-size: 16px; color: var(--muted); transition: color .2s var(--ease); }
.nav a:hover { color: var(--text); }
.nav a.nav__contact { color: var(--text); display: inline-flex; align-items: center; gap: 6px; }
.nav a.nav__contact svg { width: 15px; height: 15px; }
.menu-toggle { display: none; }

/* hero: заголовок во всю строку, ниже три колонки */
.hero { padding: calc(var(--header-h) + clamp(40px, 7vw, 112px)) 0 clamp(56px, 7vw, 96px); }
.hero__label { font-size: 15px; color: var(--muted); }
.hero h1 { margin-top: 28px; font-size: clamp(42px, 5.4vw, 88px); max-width: 15em; text-wrap: balance; }
.hero h1 em { font-style: normal; color: var(--muted); }
.hero__row { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; align-items: end; margin-top: clamp(48px, 6vw, 88px); padding-top: 32px; border-top: 1px solid var(--line); }
.hero__intro { grid-column: 1 / 5; align-self: start; }
.hero__intro p { color: var(--muted); max-width: 400px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.hero__index { grid-column: 5 / 9; align-self: start; padding-left: 24px; }
.hero__index li + li { margin-top: 10px; }
.hero__index a { display: grid; grid-template-columns: 36px 1fr; color: var(--text); transition: color .2s var(--ease); }
.hero__index a span { color: var(--dim); font-size: 14px; padding-top: 3px; }
.hero__index a:hover { color: var(--muted); }
.media { grid-column: 9 / 13; position: relative; aspect-ratio: 1 / 1; width: 100%; border-radius: var(--radius); overflow: hidden; background: #0e0f0e; }
.media img, .media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.media video { opacity: 0; transition: opacity .8s var(--ease); }
.media.is-playing video { opacity: 1; }

/* секции: подпись слева, содержимое справа */
.sec { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; padding: clamp(72px, 9vw, 128px) 0; border-top: 1px solid var(--line); }
.sec__label { grid-column: 1 / 4; }
.sec__label span { display: block; font-size: 15px; color: var(--muted); }
.sec__label p { margin-top: 12px; font-size: 15px; color: var(--dim); max-width: 240px; }
.sec__body { grid-column: 4 / 13; }
.sec__body > h2 { font-size: clamp(32px, 3.4vw, 54px); max-width: 15em; text-wrap: balance; }
.sec__body > h2 + * { margin-top: clamp(32px, 4vw, 56px); }
.sec--sticky .sec__label { position: sticky; top: calc(var(--header-h) + 32px); align-self: start; }

/* работы: асимметричная сетка во всю ширину */
.work-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; padding: clamp(72px, 9vw, 128px) 0 clamp(32px, 4vw, 48px); border-top: 1px solid var(--line); }
.work-head h2 { font-size: clamp(32px, 3.4vw, 54px); }
.work-head p { color: var(--muted); max-width: 380px; }
.works { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(32px, 4vw, 56px) 24px; padding-bottom: clamp(72px, 9vw, 128px); }
.work:nth-child(1) { grid-column: 1 / 8; }
.work:nth-child(2) { grid-column: 9 / 13; align-self: end; }
.work:nth-child(3) { grid-column: 1 / 6; }
.work:nth-child(4) { grid-column: 7 / 13; margin-top: clamp(40px, 8vw, 120px); }
.work__img { aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius); background: var(--surface); }
.work__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.work:hover .work__img img { transform: scale(1.03); }
.work figcaption { display: flex; justify-content: space-between; gap: 16px; margin-top: 16px; }
.work h3 { font-size: 20px; letter-spacing: -0.02em; }
.work figcaption span { color: var(--muted); font-size: 15px; white-space: nowrap; }

/* услуги строками */
.services li { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 24px; padding: 28px 0; border-top: 1px solid var(--line); }
.services li:last-child { border-bottom: 1px solid var(--line); }
.services h3 { font-size: clamp(22px, 2vw, 30px); }
.services p { color: var(--muted); }
.services .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.services .tags span { padding: 5px 12px; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 13px; color: var(--muted); }

/* процесс: три фигуры */
.shapes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.shapes li { padding: 28px; background: var(--surface); border-radius: var(--radius); }
.shapes svg { width: 40px; height: 40px; color: var(--text); }
.shapes h3 { margin-top: 48px; font-size: 22px; }
.shapes p { margin-top: 10px; color: var(--muted); font-size: 16px; }

/* FAQ */
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 24px 0; cursor: pointer; list-style: none; font-size: clamp(18px, 1.5vw, 21px); letter-spacing: -0.015em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary svg { width: 20px; height: 20px; flex: none; color: var(--muted); transition: transform .3s var(--ease); }
.faq details[open] summary svg { transform: rotate(45deg); color: var(--text); }
.faq details p { padding: 0 48px 26px 0; color: var(--muted); max-width: 760px; }

/* футер = контакт */
.footer { border-top: 1px solid var(--line); padding: clamp(80px, 10vw, 144px) 0 40px; }
.footer__cta h2 { font-size: clamp(38px, 5vw, 80px); max-width: 11em; text-wrap: balance; }
.footer__cta p { margin-top: 20px; color: var(--muted); }
.footer__mail { display: inline-flex; align-items: center; gap: 14px; margin-top: 36px; font: 500 clamp(24px, 2.6vw, 40px)/1.1 var(--font); letter-spacing: -0.03em; border-bottom: 1px solid var(--line-strong); padding-bottom: 8px; transition: border-color .2s var(--ease); }
.footer__mail svg { width: 0.8em; height: 0.8em; transition: transform .2s var(--ease); }
.footer__mail:hover { border-color: var(--text); }
.footer__mail:hover svg { transform: translate(3px, -3px); }
.footer__grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; margin-top: clamp(72px, 9vw, 128px); padding-top: 32px; border-top: 1px solid var(--line); font-size: 15px; }
.footer__grid .logo { grid-column: 1 / 4; align-self: start; }
.footer__col { grid-column: span 2; }
.footer__col h4 { margin: 0 0 14px; font-size: 15px; font-weight: 500; color: var(--dim); }
.footer__col li + li { margin-top: 8px; }
.footer__col a { color: var(--muted); transition: color .2s var(--ease); }
.footer__col a:hover { color: var(--text); }
.footer__legal { grid-column: 9 / 13; justify-self: end; text-align: right; }
.footer__copy { margin-top: 40px; font-size: 14px; color: var(--dim); }

/* место под реквизиты юрлица; legal--placeholder снять, когда впишем реальные данные */
.legal { display: grid; gap: 4px; line-height: 1.5; font-size: 14px; color: var(--dim); }
.legal__name { color: var(--muted); }
.legal--placeholder { padding: 12px 16px; border: 1px dashed var(--line-strong); border-radius: 12px; }

.js [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js [data-reveal].is-in { opacity: 1; transform: none; }
.js [data-reveal-delay="1"] { transition-delay: .1s; }
.js [data-reveal-delay="2"] { transition-delay: .2s; }

@media (min-width: 1800px) { :root { --container: 1480px; } }

@media (max-width: 1100px) {
  .hero__intro { grid-column: 1 / 7; }
  .hero__index { grid-column: 7 / 13; }
  .media { grid-column: 1 / 13; max-width: 420px; }
  .footer__grid .logo { grid-column: 1 / -1; }
  .footer__col { grid-column: span 4; }
  .footer__legal { grid-column: span 4; }
}

@media (max-width: 860px) {
  :root { --header-h: 64px; }
  .menu-toggle {
    display: inline-grid; place-items: center; width: 44px; height: 44px; margin-left: auto;
    background: none; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--text); cursor: pointer;
  }
  .menu-toggle svg { width: 20px; height: 20px; }
  .menu-toggle .i-close { display: none; }
  .menu-open .menu-toggle .i-open { display: none; }
  .menu-open .menu-toggle .i-close { display: block; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0; margin: 0; flex-direction: column; gap: 0;
    padding: 8px var(--gutter) 28px; background: var(--bg); border-bottom: 1px solid var(--line);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  }
  .menu-open .nav { opacity: 1; visibility: visible; transform: none; }
  .nav a { padding: 16px 0; font-size: 20px; color: var(--text); border-bottom: 1px solid var(--line); }
  .hero__row { grid-template-columns: 1fr; gap: 32px; }
  .hero__intro, .hero__index, .media { grid-column: 1 / -1; }
  .hero__index { padding-left: 0; }
  .media { max-width: none; }
  .sec { grid-template-columns: 1fr; gap: 20px; }
  .sec__label, .sec__body { grid-column: 1 / -1; }
  .sec--sticky .sec__label { position: static; }
  .work-head { flex-direction: column; align-items: flex-start; }
  .works { grid-template-columns: 1fr; }
  .work:nth-child(n) { grid-column: 1 / -1; margin-top: 0; }
  .services li { grid-template-columns: 1fr; gap: 10px; }
  .shapes { grid-template-columns: 1fr; }
  .shapes h3 { margin-top: 28px; }
  .faq details p { padding-right: 0; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__grid .logo, .footer__legal { grid-column: 1 / -1; }
  .footer__col { grid-column: span 1; }
  .footer__legal { justify-self: start; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}