@font-face {
  font-family: "Golos Text";
  src: url("assets/golos-cyr.woff2") format("woff2");
  font-weight: 400 800;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Golos Text";
  src: url("assets/golos-lat.woff2") format("woff2");
  font-weight: 400 800;
  font-display: swap;
  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 {
  --paper: #efede8;
  --surface: #e7decd;
  --pale: #dbe6f6;
  --ink: #122753;
  --accent: #123b96;
  --deep: #102b69;
  --inverse: #fcf9ef;
  --gutter: clamp(20px, 4.5vw, 72px);
  --space: clamp(76px, 8.5vw, 140px);
  --small: 0.875rem;
  --body: 1.0625rem;
  --lead: clamp(1.25rem, 1.02rem + 0.72vw, 1.6rem);
  --heading: clamp(2.25rem, 1.35rem + 2.65vw, 4.2rem);
  --display: clamp(3rem, 1.5rem + 3.75vw, 5.6rem);
  --hex: polygon(0 50%, 24% 0, 76% 0, 100% 50%, 76% 100%, 24% 100%);
  --chamfer: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  --ease-out: cubic-bezier(.23, 1, .32, 1);
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { color-scheme: light; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 var(--body)/1.5 "Golos Text", Arial, sans-serif; }
img { display: block; max-width: 100%; }
figure, p, h1, h2, h3, ul { margin: 0; }
h1, h2, h3 { line-height: 1.05; text-wrap: balance; letter-spacing: -.035em; font-weight: 750; }
h1 { font-size: var(--display); }
h2 { font-size: var(--heading); }
h3 { font-size: var(--lead); }
p { text-wrap: pretty; }
a { color: inherit; text-underline-offset: .2em; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid currentColor; outline-offset: 5px; }
::selection { background: var(--accent); color: var(--inverse); }
.frame { width: min(100% - var(--gutter) * 2, 1440px); margin-inline: auto; }
.skip { position: absolute; z-index: 10; left: var(--gutter); top: 10px; padding: 10px 18px; color: var(--inverse); background: var(--accent); transform: translateY(-200%); }
.skip:focus { transform: none; }
.header-row { min-height: 94px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: var(--lead); font-weight: 800; line-height: 1; }
.brand small { font-size: var(--small); margin-top: 4px; }
.brand img { flex: none; }
.site-nav, .footer-row nav { display: flex; gap: clamp(15px, 2.5vw, 40px); align-items: center; flex-wrap: wrap; }
.site-nav a, .header-phone, .footer-row a { text-decoration: none; }
.site-nav a, .header-phone { display: flex; align-items: center; min-height: 44px; white-space: nowrap; }
.header-phone { font-weight: 650; }
.hero { overflow: clip; }
.hero-layout { min-height: clamp(560px, 46vw, 720px); position: relative; isolation: isolate; display: grid; align-items: center; grid-template-columns: 48% 52%; }
.hero-copy { z-index: 1; padding-block: 52px 64px; }
.hero h1 { color: var(--deep); text-wrap: nowrap; }
.hero-copy p { max-width: 33ch; margin-top: 34px; font-size: var(--lead); line-height: 1.38; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 16px; min-height: 55px; padding: 12px 24px; border: 0; background: var(--accent); clip-path: var(--chamfer); color: var(--inverse); font-weight: 650; text-decoration: none; transition: transform 160ms var(--ease-out); }
.button:active { transform: scale(.97); }
.button:focus-visible { clip-path: none; outline-color: var(--accent); }
.hero .button { margin-top: 28px; }
.hero-picture { align-self: stretch; position: relative; margin-left: -2%; margin-right: calc(-1 * var(--gutter)); padding-block: 30px 58px; display: grid; align-content: center; min-width: 0; }
.hero-picture::before { content: ""; position: absolute; z-index: -1; inset: 0 -13% 20px 5%; background: var(--accent); clip-path: var(--hex); }
.hero-mask { margin: 0 0 0 0; clip-path: var(--hex); aspect-ratio: 1.42; background: var(--deep); overflow: hidden; }
.hero-mask img { width: 100%; height: 100%; object-fit: cover; }
.hero-picture figcaption { position: absolute; bottom: 4px; right: var(--gutter); font-size: var(--small); font-weight: 500; }
.field { padding-block: var(--space); }
.anatomy { background: var(--deep); color: var(--inverse); padding-block: clamp(66px, 6vw, 110px); }
.anatomy-layout { display: grid; align-items: center; grid-template-columns: .82fr 1.18fr; gap: clamp(28px, 6vw, 100px); }
.anatomy-copy > p { margin-top: 20px; max-width: 37ch; }
.part-controls { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 22px; }
.part-controls button { color: var(--inverse); background: transparent; border: 0; min-height: 44px; padding: 6px 10px; font-weight: 650; font-size: var(--small); transition: transform 160ms var(--ease-out); }
.part-controls button[aria-pressed="true"] { background: var(--inverse); color: var(--deep); clip-path: var(--chamfer); }
.part-controls button:focus-visible { clip-path: none; outline-color: var(--inverse); outline-offset: 1px; }
.part-controls button:hover { text-decoration: underline; }
.part-controls button:active { transform: scale(.97); }
.anatomy-copy .part-detail { min-height: 3em; margin-top: 12px; }
.anatomy-figure svg { display: block; width: 100%; }
.anatomy-figure figcaption { text-align: center; font-size: var(--small); }
.diagram-back { fill: var(--accent); }
.screw-steel { fill: var(--steel, #adbdcf); }
.screw-light { fill: var(--shine, #f1f6ff); }
.screw-dark { fill: var(--steel-dark, #637991); }
.screw-line { fill: none; stroke: var(--shine, #f1f6ff); stroke-width: 2; }
.screw-piece { transition: transform .55s var(--ease-out), opacity .36s var(--ease-out); }
.anatomy[data-part="washer"] .piece-head { transform: translateX(-43px); opacity: .48; }
.anatomy[data-part="washer"] .piece-washer { transform: translateX(-18px) scaleY(1.13); transform-origin: 180px 158px; --steel: #f2e4b8; --steel-dark: #b8a575; }
.anatomy[data-part="washer"] :is(.piece-thread, .piece-tip) { transform: translateX(29px); opacity: .48; }
.anatomy[data-part="thread"] .piece-tip { transform: translateX(43px); opacity: .48; }
.anatomy[data-part="thread"] :is(.piece-washer, .piece-head) { transform: translateX(-44px); opacity: .48; }
.anatomy[data-part="thread"] .piece-thread, .anatomy[data-part="tip"] .piece-tip { --steel: #f2e4b8; --shine: #fff8e0; --steel-dark: #b8a575; }
.anatomy[data-part="tip"] .piece-tip { transform: translateX(32px); }
.anatomy[data-part="tip"] :is(.piece-thread, .piece-washer, .piece-head) { transform: translateX(-16px); opacity: .48; }
.section-intro { display: grid; grid-template-columns: 1.16fr .84fr; gap: 35px; align-items: end; margin-bottom: clamp(35px, 5vw, 72px); }
.section-intro p { max-width: 43ch; }
.catalog { background: var(--surface); }
.catalog-menu { display: grid; grid-template-columns: 1fr 1fr; gap: 38px clamp(32px, 6vw, 95px); list-style: none; padding: 0; }
.catalog-menu li { display: grid; grid-template-columns: clamp(64px, 7vw, 110px) 1fr; align-items: start; gap: clamp(15px, 2vw, 30px); }
.photo-bullet { display: block; overflow: hidden; aspect-ratio: 1.12; clip-path: var(--hex); background: var(--paper); }
.photo-bullet img { width: 100%; height: 100%; object-fit: cover; }
.catalog-menu a { font-size: var(--lead); line-height: 1.22; font-weight: 720; text-decoration: none; }
.catalog-menu p { max-width: 40ch; margin-top: 6px; }
.text-action { display: inline-flex; align-items: center; min-height: 44px; font-weight: 650; }
.catalog .text-action { margin-top: 34px; }
.production-layout { display: grid; grid-template-columns: 1.3fr .85fr .85fr; align-items: end; gap: clamp(20px, 4.2vw, 64px); }
.production-copy p { max-width: 40ch; margin-block: 20px 10px; }
.production-picture img { width: 100%; aspect-ratio: 1.18; height: auto; object-fit: cover; background: var(--surface); clip-path: var(--hex); }
.production-picture figcaption { margin-top: 13px; text-align: center; font-size: var(--small); font-weight: 650; }
.sovel { background: var(--pale); }
.showcase { display: grid; gap: 38px; }
.showcase.is-ready { grid-template-columns: minmax(200px, .34fr) minmax(0, 1fr); align-items: center; }
.show-nav { display: grid; gap: 10px; }
.show-nav button { text-align: left; min-height: 48px; padding: 8px 13px; border: 0; background: transparent; color: var(--ink); font-weight: 600; transition: transform 160ms var(--ease-out); }
.show-nav button[aria-pressed="true"] { color: var(--inverse); background: var(--accent); clip-path: var(--chamfer); }
.show-nav button:focus-visible { clip-path: none; outline-offset: 2px; }
.show-nav button:active { transform: scale(.97); }
.show-items { min-width: 0; }
.show-item { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: clamp(20px, 3vw, 48px); }
.showcase:not(.is-ready) .show-item + .show-item { margin-top: 38px; }
.show-image { background: var(--accent); clip-path: var(--hex); aspect-ratio: 1.1; overflow: hidden; display: grid; place-items: center; }
.show-image img { width: 100%; height: 100%; object-fit: cover; }
.show-image img[src*="sov-engine"], .show-image img[src*="sov-tool"] { width: 85%; height: 85%; object-fit: contain; }
.show-copy p { margin-block: 14px 8px; max-width: 36ch; }
.source-note { margin-top: 32px; font-size: var(--small); }
.contact { background: var(--paper); }
.coupon { background: var(--deep); color: var(--inverse); clip-path: polygon(0 0, calc(100% - 35px) 0, 100% 35px, 100% 100%, 35px 100%, 0 calc(100% - 35px)); display: grid; grid-template-columns: 1fr 1fr; gap: clamp(26px, 6vw, 100px); padding: clamp(34px, 5.5vw, 80px); }
.contact-copy > p { margin-block: 22px 24px; max-width: 36ch; }
.contact-copy address { display: grid; gap: 9px; font-style: normal; justify-items: start; }
.request { display: grid; align-content: start; gap: 13px; }
.request label { display: grid; gap: 6px; font-weight: 600; }
.request input, .request textarea { display: block; width: 100%; min-height: 48px; padding: 10px 12px; border: 0; border-radius: 0; background: var(--inverse); color: var(--ink); font-weight: 400; }
.request input:focus-visible, .request textarea:focus-visible { outline-color: var(--inverse); }
.request textarea { resize: vertical; }
.request p { font-size: var(--small); }
.button-inverse { color: var(--deep); background: var(--inverse); }
.button-inverse:focus-visible { outline-color: var(--inverse); }
.site-footer { background: var(--surface); padding-block: 36px; }
.footer-mark { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; align-items: end; }
.footer-mark span { display: grid; place-items: center; background: var(--accent); color: var(--inverse); clip-path: var(--hex); aspect-ratio: 1.65; max-height: 240px; font-size: clamp(3.3rem, 12vw, 10rem); font-weight: 800; line-height: 1; }
.footer-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px 32px; margin-bottom: 35px; font-size: var(--small); }
.subpage { padding-block: clamp(42px, 6vw, 90px) var(--space); min-height: 65vh; }
.subpage > .frame > p { margin-block: 24px 0; max-width: 60ch; }
.crumb { display: inline-flex; align-items: center; min-height: 44px; margin-bottom: 18px; }
.directory { margin-top: 42px; display: grid; gap: 54px; }
.directory section { background: var(--surface); padding: clamp(20px, 4vw, 58px); }
.directory h2 { font-size: clamp(1.75rem, 1.1rem + 1.7vw, 3rem); margin-bottom: 22px; }
.directory ul { list-style: none; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 36px; }
.directory li a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 560; }
.directory li:target, .directory section:target { background: var(--pale); }
.subpage .button { margin-top: 36px; }
@media (hover: hover) and (pointer: fine) {
  .site-nav a:hover, .header-phone:hover, .footer-row a:hover, .catalog-menu a:hover, .show-nav button:hover { text-decoration: underline; }
  .button:hover { transform: translateY(-2px); }
  .button:active { transform: scale(.97); }
}
@media (max-width: 1000px) {
  .header-row { gap: 15px; }
  .header-phone { display: none; }
  .hero-layout { min-height: 550px; }
  .hero h1 { font-size: clamp(2.5rem, 5.7vw, 4.35rem); }
  .showcase.is-ready { grid-template-columns: 1fr; gap: 24px; }
  .show-nav { display: flex; flex-wrap: wrap; gap: 5px; }
}
@media (max-width: 680px) {
  .header-row { flex-wrap: wrap; padding-block: 14px 4px; row-gap: 6px; }
  .header-phone { display: inline-flex; font-size: var(--small); }
  .site-nav { order: 2; width: 100%; justify-content: space-between; flex-wrap: nowrap; gap: 6px; font-size: var(--small); }
  .hero-layout { display: flex; flex-direction: column; min-height: 0; align-items: stretch; }
  .hero-copy { padding-block: 36px 16px; }
  .hero h1 { font-size: clamp(2.45rem, 10.9vw, 4rem); }
  .hero-copy p { margin-top: 22px; }
  .hero .button { margin-top: 20px; }
  .hero-picture { padding-block: 12px 55px; margin-inline: calc(-1 * var(--gutter)); }
  .hero-picture::before { inset: 2% -14% 40px -10%; }
  .hero-mask { width: 109%; margin-left: -4.5%; aspect-ratio: 1.54; }
  .hero-picture figcaption { bottom: 10px; right: var(--gutter); left: var(--gutter); }
  .section-intro, .production-layout, .show-item, .coupon { grid-template-columns: 1fr; }
  .anatomy-layout { grid-template-columns: 1fr; gap: 20px; }
  .anatomy-copy .part-detail { min-height: 4.5em; }
  .section-intro { gap: 17px; align-items: start; }
  .catalog-menu, .directory ul { grid-template-columns: 1fr; gap: 25px; }
  .production-layout { grid-template-columns: 1fr 1fr; }
  .production-copy { grid-column: 1 / -1; margin-bottom: 12px; }
  .production-picture figcaption { text-align: left; }
  .show-image { aspect-ratio: 1.35; }
  .showcase.is-ready { gap: 15px; }
  .show-item { gap: 16px; }
  .show-nav { display: grid; grid-template-columns: 1fr 1fr; }
  .show-nav button { font-size: var(--small); }
  .coupon { gap: 29px; padding: 33px 23px; }
  .footer-mark { gap: 5px; }
}
@media (prefers-reduced-motion: reduce) {
  .screw-piece, .button, .part-controls button, .show-nav button { transition: none; }
}
@media (max-width: 360px) {
  :root { --gutter: 16px; }
  .brand small { font-size: .8125rem; }
  .brand img { width: 34px; height: 34px; }
  .site-nav { font-size: .8125rem; }
}
@media (prefers-reduced-motion: no-preference) {
  .hero-mask img { animation: shutter 1.1s var(--ease-out) both; }
  [data-reveal].has-entered { animation: arrive .52s var(--ease-out) both; animation-delay: var(--delay, 0ms); }
  .show-item.is-selected .show-image img, .show-item.is-selected .show-copy { animation: arrive .24s var(--ease-out) both; }
}
@keyframes shutter { from { transform: translateX(3%) scale(1.13); } to { transform: none; } }
@keyframes arrive { from { transform: translateY(16px); opacity: .65; } to { transform: none; opacity: 1; } }