@font-face {
  font-family: "Montserrat";
  src: url("../fonts/montserrat-cyrillic.woff2") format("woff2");
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Montserrat";
  src: url("../fonts/montserrat-latin.woff2") format("woff2");
  font-weight: 400 800;
  font-style: normal;
  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 {
  --ink: #1b1a18;
  --ink-2: #45413b;
  --muted: #7a746c;
  --accent: #d4711d;
  --accent-d: #b85e11;
  --paper: #f4f1ec;
  --line: #e6e1d9;
  --white: #fff;
  --wrap: 1312px;
  --pad: 32px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Montserrat", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  font-size: 17px; line-height: 1.55; color: var(--ink); background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--pad); }

/* ---------- header ---------- */
.hdr { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.97); backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid var(--line); }
.hdr__in { display: flex; align-items: center; gap: 32px; height: 80px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; flex-shrink: 0; }
.brand__lock { display: inline-flex; align-items: center; gap: 6px; }
.brand__name { font-size: 24px; font-weight: 800; letter-spacing: .02em; line-height: 1; }
.brand__code {
  display: inline-grid; place-items: center; height: 30px; padding: 0 7px; border-radius: 7px;
  background: var(--accent); color: var(--white); font-size: 19px; font-weight: 800; line-height: 1; letter-spacing: .01em;
}
.brand__tag { padding-left: 14px; border-left: 1px solid var(--line); font-size: 11px; line-height: 1.35; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.nav { display: flex; gap: 26px; margin-left: auto; }
.nav a { font-size: 15px; font-weight: 600; text-decoration: none; color: var(--ink-2); transition: color .15s; white-space: nowrap; }
.nav a:hover { color: var(--accent); }
.hdr__contact { display: flex; align-items: center; gap: 18px; }
.hdr__tel { font-size: 18px; font-weight: 800; text-decoration: none; white-space: nowrap; letter-spacing: -.01em; }
.hdr__tel:hover { color: var(--accent); }
.hdr__cta {
  display: inline-flex; align-items: center; height: 46px; padding: 0 20px; border-radius: 10px;
  border: 2px solid var(--ink); font-size: 15px; font-weight: 700; text-decoration: none; white-space: nowrap; transition: background .15s, color .15s;
}
.hdr__cta:hover { background: var(--ink); color: var(--white); }
.hdr__call, .burger { display: none; }
@media (max-width: 1500px) { .hdr__cta { display: none; } }
@media (max-width: 1380px) { .brand__tag { display: none; } }

/* ---------- hero ---------- */
.hero { padding: 40px 0 0; }
.hero__top { display: grid; grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr); gap: 48px; align-items: end; }
.hero h1 { font-size: clamp(42px, 4.5vw, 66px); line-height: 1.02; font-weight: 800; letter-spacing: -.045em; }
.hero h1 span { display: block; color: var(--accent); }
.hero__lead { margin-top: 20px; font-size: 19px; line-height: 1.5; color: var(--ink-2); font-weight: 500; max-width: 640px; }
.hero__lead b { color: var(--ink); font-weight: 700; }
.hero__side { display: flex; flex-direction: column; gap: 14px; padding-bottom: 4px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 58px; padding: 0 30px;
  border-radius: 12px; border: 0; font: inherit; font-size: 17px; font-weight: 700; text-decoration: none; cursor: pointer;
  transition: background .15s, transform .15s, box-shadow .15s;
}
.btn--wide { width: 100%; }
.btn--accent { background: var(--accent); color: var(--white); box-shadow: 0 12px 26px -14px rgba(212,113,29,.85); }
.btn--accent:hover { background: var(--accent-d); transform: translateY(-1px); }
.hero__note { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--ink-2); }
.hero__note svg { flex: 0 0 18px; width: 18px; height: 18px; color: var(--accent); }
.hero__works { display: flex; align-items: center; gap: 12px; padding-top: 14px; border-top: 1px solid var(--line); text-decoration: none; font-size: 15px; font-weight: 700; }
.hero__thumbs { display: flex; }
.hero__thumbs img { width: 44px; height: 44px; border-radius: 50%; border: 3px solid var(--white); object-fit: cover; box-shadow: 0 2px 8px rgba(0,0,0,.12); }
.hero__thumbs img + img { margin-left: -12px; }
.hero__works svg { width: 18px; height: 18px; margin-left: auto; color: var(--accent); transition: transform .2s; }
.hero__works:hover { color: var(--accent); }
.hero__works:hover svg { transform: translateX(3px); }

/* ---------- three panels ---------- */
.panels { display: flex; gap: 16px; height: 492px; margin-top: 34px; }
.panel {
  position: relative; flex: 1 1 0; min-width: 0; overflow: hidden; isolation: isolate;
  border-radius: 22px; color: var(--white); text-decoration: none; background: #2b2824;
  transition: flex-grow .55s cubic-bezier(.2,.7,.2,1);
}
.panel__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.panel::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(18,16,14,.35) 0%, rgba(18,16,14,0) 22%, rgba(18,16,14,0) 40%, rgba(18,16,14,.72) 68%, rgba(18,16,14,.94) 100%);
}
@media (hover: hover) and (min-width: 1025px) {
  .panels:hover .panel { flex-grow: .85; }
  .panels .panel:hover { flex-grow: 1.45; }
  .panel:hover .panel__bg { transform: scale(1.05); }
}
.panel__logo {
  position: absolute; left: 20px; top: 20px; display: flex; align-items: center; justify-content: center;
  height: 82px; padding: 8px 14px; border-radius: 14px; background: var(--white);
  box-shadow: 0 10px 24px -14px rgba(0,0,0,.6);
}
.panel__logo img { height: 66px; width: auto; }
.panel__tag {
  position: absolute; right: 20px; top: 20px; padding: 7px 12px; border-radius: 30px;
  background: rgba(18,16,14,.55); backdrop-filter: blur(6px); font-size: 12.5px; font-weight: 700; letter-spacing: .02em;
}
.panel__body { position: absolute; left: 26px; right: 26px; bottom: 26px; display: flex; flex-direction: column; }
.panel__title { font-size: 28px; line-height: 1.08; font-weight: 800; letter-spacing: -.03em; max-width: 360px; }
.panel__facts { display: flex; flex-direction: column; gap: 7px; margin-top: 16px; }
.panel__facts > span { position: relative; padding-left: 22px; font-size: 14.5px; line-height: 1.4; font-weight: 500; color: rgba(255,255,255,.9); }
.panel__facts > span::before {
  content: ""; position: absolute; left: 0; top: .42em; width: 12px; height: 7px;
  border-left: 2.5px solid var(--accent); border-bottom: 2.5px solid var(--accent); transform: rotate(-45deg); transform-origin: 30% 60%;
}
.panel__btn {
  display: inline-flex; align-self: flex-start; align-items: center; gap: 10px; margin-top: 20px;
  height: 48px; padding: 0 20px; border-radius: 10px; background: var(--white); color: var(--ink);
  font-size: 15px; font-weight: 700; transition: background .2s, color .2s;
}
.panel__btn svg { width: 18px; height: 18px; transition: transform .2s; }
.panel:hover .panel__btn { background: var(--accent); color: var(--white); }
.panel:hover .panel__btn svg { transform: translateX(3px); }
.panel--dark { background: #151515; }
.panel__art { position: absolute; left: 50%; top: 10px; width: min(76%, 300px); height: auto; transform: translateX(-50%); z-index: -2; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.panel--dark:hover .panel__art { transform: translateX(-50%) scale(1.04); }
.panel--dark::after { background: linear-gradient(180deg, rgba(21,21,21,0) 40%, rgba(21,21,21,.85) 58%, #151515 76%); }

/* ---------- stats ---------- */
.stats { padding: 40px 0 56px; }
.stats__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.stat { display: flex; align-items: center; gap: 16px; padding: 4px 0; }
.stat b { font-size: 46px; line-height: 1; font-weight: 800; letter-spacing: -.04em; color: var(--accent); white-space: nowrap; }
.stat span { font-size: 15px; line-height: 1.35; font-weight: 600; color: var(--ink-2); max-width: 170px; }

/* ---------- responsive ---------- */
@media (max-width: 1240px) {
  .nav { gap: 18px; }
  .nav a { font-size: 14px; }
  .hdr__cta { display: none; }
  .brand__tag { display: none; }
}
@media (max-width: 1024px) {
  :root { --pad: 24px; }
  .nav {
    position: absolute; left: 0; right: 0; top: 100%; display: none; flex-direction: column; gap: 0;
    background: var(--white); border-bottom: 1px solid var(--line); padding: 8px var(--pad) 16px; margin: 0;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 14px 0; font-size: 17px; border-bottom: 1px solid var(--line); }
  .nav a:last-child { border-bottom: 0; }
  .hdr__contact { margin-left: auto; }
  .burger { display: grid; place-items: center; width: 44px; height: 44px; margin-right: -8px; border: 0; background: none; cursor: pointer; padding: 0; }
  .burger span, .burger span::before, .burger span::after { display: block; width: 24px; height: 2.5px; border-radius: 2px; background: var(--ink); position: relative; transition: transform .2s, background .2s; }
  .burger span::before, .burger span::after { content: ""; position: absolute; left: 0; }
  .burger span::before { top: -8px; }
  .burger span::after { top: 8px; }
  .burger[aria-expanded="true"] span { background: transparent; }
  .burger[aria-expanded="true"] span::before { transform: translateY(8px) rotate(45deg); }
  .burger[aria-expanded="true"] span::after { transform: translateY(-8px) rotate(-45deg); }
  .hero__top { grid-template-columns: 1fr; gap: 24px; align-items: start; }
  .hero__side { max-width: 460px; }
  .panels { flex-direction: column; height: auto; }
  .panel { flex: none; height: 360px; }
  .stats__grid { grid-template-columns: 1fr 1fr; row-gap: 22px; }
}
@media (max-width: 640px) {
  :root { --pad: 18px; }
  body { font-size: 16px; }
  .hdr__in { height: 64px; gap: 10px; }
  .brand__name { font-size: 20px; }
  .brand__code { height: 26px; font-size: 16px; padding: 0 6px; }
  .hdr__contact { display: none; }
  .hdr__call { display: grid; place-items: center; width: 44px; height: 44px; margin-left: auto; border-radius: 12px; background: var(--accent); color: var(--white); }
  .hdr__call svg { width: 20px; height: 20px; }
  .hero { padding-top: 28px; }
  .hero h1 { font-size: clamp(36px, 10.6vw, 46px); }
  .hero__lead { font-size: 16.5px; margin-top: 16px; }
  .btn { width: 100%; min-height: 56px; }
  .hero__side { gap: 12px; }
  .hero__note { font-size: 13.5px; }
  .hero__works { font-size: 14px; gap: 10px; }
  .panels { gap: 12px; margin-top: 26px; }
  .panel { height: 340px; border-radius: 18px; }
  .panel__logo { height: 64px; left: 14px; top: 14px; padding: 6px 10px; }
  .panel__logo img { height: 52px; }
  .panel__tag { right: 14px; top: 14px; font-size: 11.5px; }
  .panel__body { left: 18px; right: 18px; bottom: 18px; }
  .panel__title { font-size: 23px; }
  .panel__facts { margin-top: 12px; gap: 5px; }
  .panel__facts > span { font-size: 14px; }
  .panel__btn { margin-top: 14px; height: 44px; font-size: 14.5px; }
  .panel__art { width: 230px; top: 12px; }
  .panel--dark { height: 380px; }
  .stats { padding: 32px 0 44px; }
  .stats__grid { gap: 22px 16px; }
  .stat { flex-direction: column; align-items: flex-start; gap: 6px; }
  .stat b { font-size: 36px; }
  .stat span { font-size: 13.5px; max-width: none; }
}
@media (max-width: 380px) {
  .brand__name { font-size: 18px; }
}

.nw { white-space: nowrap; }

/* ---------- complete directions ---------- */
[hidden] { display: none !important; }
button, input, select, textarea { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }
:where(a, button, input, select, textarea, summary):focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
:where(section, [id]) { scroll-margin-top: 104px; }
.section-space { padding: 108px 0; }
.direction-head > *, .materials-head > *, .request-layout > *, .wall-story > *, .faq-layout > *, .footer-top > *, .stone-card > * { min-width: 0; }
.direction { border-top: 1px solid var(--line); }
.direction--paper, .request { background: var(--paper); }
.direction h2, .materials h2, .faq h2, .request h2 { font-size: clamp(38px, 4.2vw, 58px); line-height: 1.06; letter-spacing: -.05em; font-weight: 800; }
.direction h2 span, .materials h2 span, .request h2 span { color: var(--accent); }
.direction h3, .materials h3, .contacts h3 { font-size: clamp(28px, 3.1vw, 40px); line-height: 1.14; letter-spacing: -.035em; font-weight: 800; }
.direction-head { display: grid; grid-template-columns: 1.1fr 1fr; gap: 80px; align-items: end; }
.direction-logo { width: auto; height: 82px; object-fit: contain; margin-bottom: 28px; }
.direction-intro { color: var(--ink-2); font-size: 18px; line-height: 1.65; }
.direction-facts { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 18px; border-top: 1px solid var(--line); margin-top: 28px; padding-top: 24px; font-size: 13px; font-weight: 500; }
.direction-facts b { display: block; font-size: 25px; letter-spacing: -.04em; color: var(--ink); line-height: 1.2; margin-bottom: 4px; white-space: nowrap; }
.subsection { margin-top: 80px; }
.block-head { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 32px; }
.block-head > p { max-width: 360px; color: var(--ink-2); font-size: 16px; }
.gallery { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); grid-auto-rows: 198px; gap: 14px; }
.gallery__tile { position: relative; display: block; min-width: 0; padding: 0; overflow: hidden; border: 0; background: var(--paper); border-radius: 20px; cursor: zoom-in; }
.gallery__tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.gallery__tile:nth-child(1) { grid-column: span 2; grid-row: span 2; }
.gallery__tile:nth-child(2), .gallery__tile:nth-child(5), .gallery__tile:nth-child(6), .gallery__tile:nth-child(9), .gallery__tile:nth-child(10) { grid-column: span 2; }
.gallery__tile:first-child img { object-position: center; }
.gallery__zoom { position: absolute; right: 14px; bottom: 14px; width: 36px; height: 36px; display: grid; place-items: center; background: var(--white); color: var(--ink); border-radius: 50%; font-size: 24px; line-height: 1; }
@media (hover: hover) { .gallery__tile:hover img { transform: scale(1.035); } }
.plan-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.plan-card { border: 1px solid var(--line); border-radius: 22px; overflow: hidden; min-width: 0; display: flex; flex-direction: column; }
.plan-card__image { width: 100%; padding: 22px 16px; border: 0; position: relative; cursor: zoom-in; display: block; background: var(--paper); }
.plan-card__image img { width: 100%; height: 218px; object-fit: contain; mix-blend-mode: multiply; }
.plan-card__body { padding: 24px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.project-title { display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.project-title h4 { font-size: 21px; line-height: 1.2; font-weight: 800; letter-spacing: -.035em; margin: 0; }
.project-title > span { font-size: 16px; font-weight: 700; white-space: nowrap; color: var(--accent); padding-top: 2px; }
.project-summary { font-size: 14px; line-height: 1.6; margin-top: 12px; color: var(--ink-2); }
.plan-card .project-summary { min-height: 46px; }
.room-preview { list-style: none; padding: 0; margin: 22px 0; font-size: 12px; color: var(--ink-2); }
.room-preview li { display: flex; align-items: start; gap: 12px; justify-content: space-between; border-bottom: 1px solid var(--line); padding: 8px 0; }
.room-preview li span:last-child { flex-shrink: 0; }
.project-actions { margin-top: auto; padding-top: 12px; display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.plan-card .project-actions { flex-wrap: wrap; }
.text-button { padding: 8px 0; color: var(--ink); border: 0; background: transparent; text-decoration: underline; text-underline-offset: 5px; font-weight: 600; font-size: 13px; cursor: pointer; }
.text-button:hover { color: var(--accent); }
.btn--small { min-height: 46px; padding: 12px 16px; font-size: 12px; line-height: 1.35; }
.project-adapt { display: flex; align-items: center; gap: 48px; justify-content: space-between; padding: 36px 40px; background: var(--paper); border-radius: 22px; margin-top: 32px; }
.project-adapt > div { max-width: 680px; }
.project-adapt h3 { font-size: 28px; }
.project-adapt p { margin-top: 12px; color: var(--ink-2); font-size: 15px; }
.project-adapt > .btn { flex-shrink: 0; font-size: 14px; }
.construction h3 { margin-bottom: 36px; }
.construction-steps, .materials-steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 36px 40px; }
.construction-steps li { border-top: 1px solid var(--line); padding-top: 20px; }
.step-number { font-size: 15px; font-weight: 700; color: var(--accent); }
.construction-steps h4, .materials-steps h4 { font-size: 18px; font-weight: 700; line-height: 1.35; margin: 14px 0 10px; letter-spacing: -.02em; }
.construction-steps p, .materials-steps p { font-size: 14px; color: var(--ink-2); line-height: 1.65; }

/* ---------- stone technology and projects ---------- */
.wall-story { margin-top: 44px; background: var(--white); border-radius: 22px; padding: 44px 64px; display: grid; grid-template-columns: 1fr 1.1fr; gap: 70px; align-items: center; }
.wall-visual { height: 220px; position: relative; display: flex; align-items: center; justify-content: center; gap: 18px; perspective: 700px; }
.wall-blocks { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; width: 210px; height: 196px; transform: rotateY(-22deg) skewY(5deg); box-shadow: 12px 10px 0 var(--line); }
.wall-blocks i { background: var(--paper); border: 1px solid var(--line); border-radius: 2px; }
.wall-bricks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; width: 120px; height: 196px; transform: rotateY(-22deg) skewY(5deg); box-shadow: 8px 7px 0 var(--accent-d); }
.wall-bricks i { background: var(--accent); border-radius: 2px; }
.wall-bricks i:nth-child(6n+4) { grid-column: span 2; }
.wall-notes > div { position: relative; padding-left: 28px; }
.wall-notes > div + div { margin-top: 28px; }
.wall-key { width: 10px; height: 10px; position: absolute; left: 0; top: 8px; border-radius: 2px; background: var(--accent); }
.wall-key--block { background: var(--paper); border: 1px solid var(--muted); }
.wall-notes h3 { font-size: 20px; letter-spacing: -.02em; }
.wall-notes p { margin-top: 8px; font-size: 15px; color: var(--ink-2); }
.stone-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.stone-card { min-width: 0; border-radius: 22px; overflow: hidden; background: var(--white); }
.stone-card__image { display: block; position: relative; width: 100%; padding: 0; background: var(--white); border: 0; cursor: pointer; }
.stone-card__image img { width: 100%; aspect-ratio: 1.79; object-fit: cover; }
.stone-card__body { padding: 28px; }
.stone-card .project-title h4 { font-size: 26px; }
.stone-card .project-title > span { font-size: 20px; }
.stone-card .project-actions { margin-top: 20px; }
.stone-card:last-child { grid-column: 1 / -1; display: grid; grid-template-columns: 1.2fr 1fr; }
.stone-card:last-child .stone-card__image img { height: 100%; min-height: 280px; }
.stone-card:last-child .stone-card__body { display: flex; flex-direction: column; justify-content: center; padding: 44px; }
.stone-card:last-child .project-actions { margin-top: 32px; flex-wrap: wrap; }
.reasons { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; }
.reasons-list { list-style: none; padding: 0; margin: 0; }
.reasons-list li { font-size: 15px; color: var(--ink-2); padding: 20px 0 20px 30px; border-top: 1px solid var(--line); position: relative; }
.reasons-list li::before, .check-list li::before { content: ''; position: absolute; left: 2px; top: 1.7em; width: 12px; height: 7px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }

/* ---------- materials ---------- */
.materials { background: #151515; color: var(--white); }
.materials-head { display: grid; grid-template-columns: 1.4fr 1fr; align-items: center; gap: 70px; }
.materials-head p { max-width: 650px; color: rgba(255,255,255,.7); margin-top: 26px; font-size: 18px; }
.materials-art { width: 100%; max-width: 390px; justify-self: end; }
.factories { display: flex; flex-wrap: wrap; list-style: none; padding: 0; margin: 44px 0 0; border: 1px solid rgba(255,255,255,.2); border-radius: 16px; }
.factories li { flex: 1; padding: 22px 18px; text-align: center; align-content: center; font-size: 17px; font-weight: 800; white-space: nowrap; }
.factories li + li { border-left: 1px solid rgba(255,255,255,.2); }
.assortment { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; list-style: none; padding: 0; margin: 32px 0 0; }
.assortment li { border: 1px solid rgba(255,255,255,.18); padding: 28px; border-radius: 20px; min-height: 180px; }
.assortment svg { width: 36px; height: 36px; fill: none; stroke: var(--accent); stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 24px; }
.assortment h4 { font-size: 18px; line-height: 1.4; margin: 0; font-weight: 600; letter-spacing: -.02em; }
.assortment p { font-size: 14px; color: rgba(255,255,255,.6); margin-top: 12px; }
.materials-steps { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 26px; margin-top: 36px; }
.materials-steps li { border-top: 1px solid rgba(255,255,255,.24); padding-top: 20px; }
.materials-steps h4 { font-size: 16px; }
.materials-steps p { color: rgba(255,255,255,.6); font-size: 13px; }
.materials-benefits { display: grid; grid-template-columns: 1fr 1.4fr; gap: 80px; }
.check-list { list-style: none; margin: 0; padding: 0; }
.check-list li { position: relative; padding-left: 28px; }
.check-list li::before { top: .55em; }
.check-list li + li { margin-top: 14px; }
.materials-benefits .check-list { color: rgba(255,255,255,.74); font-size: 16px; }
.materials-cta { border-top: 1px solid rgba(255,255,255,.24); margin-top: 60px; padding-top: 40px; display: flex; justify-content: space-between; gap: 60px; align-items: end; }
.materials-cta > div { max-width: 700px; }
.materials-cta p { font-size: 21px; font-weight: 500; line-height: 1.5; }
.materials-phone { font-size: 32px; font-weight: 800; letter-spacing: -.035em; text-decoration: none; display: inline-block; margin-top: 22px; }
.materials-cta > .btn { flex-shrink: 0; }

/* ---------- questions and request ---------- */
.faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; }
.faq-layout > div:first-child > p { margin-top: 22px; color: var(--ink-2); font-size: 16px; }
.faq__items details { border-top: 1px solid var(--line); }
.faq__items details:last-child { border-bottom: 1px solid var(--line); }
.faq__items summary { display: flex; justify-content: space-between; gap: 24px; padding: 24px 0; font-size: 18px; font-weight: 700; line-height: 1.4; cursor: pointer; list-style: none; }
.faq__items summary::-webkit-details-marker { display: none; }
.faq__items summary > span { flex: 0 0 22px; height: 22px; position: relative; margin-top: 2px; }
.faq__items summary > span::before, .faq__items summary > span::after { content: ''; position: absolute; left: 2px; right: 2px; height: 2px; top: 10px; background: var(--accent); }
.faq__items summary > span::after { transform: rotate(90deg); transition: transform .2s; }
.faq__items details[open] summary > span::after { transform: rotate(0); }
.faq__answer { padding: 0 48px 26px 0; font-size: 15px; color: var(--ink-2); }
.request-layout { display: grid; grid-template-columns: 1fr .95fr; gap: 88px; align-items: start; }
.request h2 { font-size: clamp(36px, 3.6vw, 50px); }
.request-intro { margin-top: 24px; font-size: 16px; color: var(--ink-2); }
.request-copy > .check-list { margin-top: 28px; font-size: 14px; }
.contacts { margin-top: 52px; padding-top: 32px; border-top: 1px solid var(--line); }
.contacts h3 { font-size: 26px; margin-bottom: 24px; }
.contact-group { margin-bottom: 24px; }
.contact-group p { color: var(--ink-2); font-size: 13px; margin-bottom: 8px; }
.contact-group > a { display: block; width: fit-content; font-size: 24px; font-weight: 700; line-height: 1.65; letter-spacing: -.025em; text-decoration: none; white-space: nowrap; }
.contact-group > a:hover, .contacts-email:hover { color: var(--accent); }
.contacts-email { display: inline-block; font-size: 16px; font-weight: 600; text-underline-offset: 5px; }
.contacts-address { margin-top: 12px; color: var(--ink-2); font-size: 14px; max-width: 360px; }
.form-card { border-radius: 22px; background: var(--white); padding: 40px; }
.form-card h3 { font-size: 25px; letter-spacing: -.03em; line-height: 1.2; font-weight: 800; }
.form-lead { font-size: 14px; color: var(--ink-2); margin: 14px 0 28px; }
.form-field { margin-bottom: 20px; }
.form-field > label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.form-field > label > span { color: var(--accent); }
.form-field input, .form-field select, .form-field textarea { display: block; width: 100%; min-width: 0; max-width: 100%; border: 1px solid var(--line); border-radius: 10px; background: var(--white); padding: 14px 16px; color: var(--ink); font-size: 15px; line-height: 1.5; }
.form-field select { padding-right: 26px; white-space: normal; text-overflow: ellipsis; }
.form-field textarea { resize: vertical; min-height: 105px; }
.form-field input::placeholder, .form-field textarea::placeholder { color: var(--muted); opacity: 1; }
.consent-field { margin: 24px 0; }
.consent { display: flex; align-items: start; gap: 12px; font-size: 11px; line-height: 1.65; color: var(--ink-2); cursor: pointer; }
.consent input { accent-color: var(--accent); width: 20px; height: 20px; margin: 0; flex-shrink: 0; }
.consent a { text-underline-offset: 3px; }
.field-error { font-size: 12px; line-height: 1.45; color: var(--accent-d); margin-top: 6px; }
.field-error:empty, .form-status:empty { display: none; }
[aria-invalid="true"] { border-color: var(--accent) !important; }
.form-status { font-size: 12px; margin-top: 14px; color: var(--ink-2); }
.form-success { padding: 60px 0; }
.success-mark { display: grid; place-items: center; width: 64px; height: 64px; border: 2px solid var(--accent); border-radius: 50%; color: var(--accent); font-size: 32px; margin-bottom: 28px; }
.form-success p { margin-top: 24px; color: var(--muted); font-size: 13px; }

/* ---------- footer and mobile actions ---------- */
.footer { border-top: 1px solid var(--line); padding: 64px 0 28px; }
.footer-top { display: grid; grid-template-columns: 1fr .85fr 1fr; gap: 72px; }
.footer-about > p { font-size: 14px; color: var(--ink-2); margin-top: 22px; }
.footer-nav { display: flex; flex-direction: column; gap: 12px; font-size: 13px; font-weight: 600; }
.footer-nav a { text-decoration: none; }
.footer-nav a:hover { color: var(--accent); }
.footer-contact { display: flex; flex-direction: column; gap: 9px; font-size: 14px; }
.footer-contact a { text-decoration: none; font-weight: 600; width: fit-content; }
.footer-contact p { color: var(--ink-2); font-size: 12px; margin-top: 5px; }
.footer-logos { display: flex; align-items: center; gap: 40px; padding: 32px 0; }
.footer-logos img { width: auto; height: 64px; object-fit: contain; }
.footer-logos .footer-synergy { width: 92px; height: 72px; border-radius: 8px; object-fit: cover; }
.footer-bottom { display: flex; gap: 24px; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 24px; font-size: 10px; color: var(--muted); }
.mobile-bar { display: none; }

/* ---------- accessible image and project viewer ---------- */
body.viewer-open { overflow: hidden; }
.viewer { width: min(1180px, calc(100vw - 48px)); max-width: none; max-height: calc(100dvh - 48px); padding: 0; border: 0; border-radius: 22px; background: var(--white); color: var(--ink); overflow-y: auto; overscroll-behavior: contain; }
.viewer::backdrop { background: rgba(21,21,21,.84); }
.viewer__inner { position: relative; min-height: 240px; padding: 66px 56px 30px; }
.viewer__close, .viewer__prev, .viewer__next { position: absolute; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); background: var(--white); color: var(--ink); cursor: pointer; font-size: 24px; z-index: 2; line-height: 1; }
.viewer__close { right: 16px; top: 14px; }
.viewer__prev { left: 8px; top: 48%; }
.viewer__next { right: 8px; top: 48%; }
.viewer__stage { display: grid; grid-template-columns: 1.25fr 1fr; gap: 32px; align-items: start; }
.viewer__media { min-width: 0; align-self: start; }
.viewer__media img { width: 100%; height: auto; max-height: 68dvh; object-fit: contain; margin: auto; }
.viewer__content { min-width: 0; }
.viewer__content h2 { font-size: 28px; letter-spacing: -.04em; line-height: 1.15; font-weight: 800; padding-right: 8px; }
.viewer__area { font-size: 21px; font-weight: 700; color: var(--accent); margin-top: 10px; }
.viewer__summary { margin-top: 10px; color: var(--ink-2); font-size: 14px; }
.viewer__rooms { width: 100%; border-collapse: collapse; font-size: 12px; margin: 22px 0; }
.viewer__rooms caption { text-align: left; font-weight: 700; font-size: 15px; margin-bottom: 10px; }
.viewer__rooms th, .viewer__rooms td { padding: 8px 0; border-bottom: 1px solid var(--line); text-align: left; font-weight: 400; }
.viewer__rooms th:last-child, .viewer__rooms td:last-child { text-align: right; white-space: nowrap; padding-left: 14px; }
.viewer__rooms thead th { font-weight: 600; }
.viewer__content > .btn { min-height: 48px; font-size: 13px; width: 100%; }
.viewer__counter { font-size: 12px; color: var(--muted); text-align: center; margin-top: 24px; }
.viewer__status { color: var(--ink-2); font-size: 15px; }
.viewer[data-mode="gallery"] .viewer__stage { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.viewer[data-mode="gallery"] .viewer__content h2 { text-align: center; font-size: 16px; font-weight: 600; letter-spacing: 0; }
.viewer[data-mode="gallery"] .viewer__media img { max-height: 65dvh; }

@media (max-width: 1100px) {
  .direction-head { gap: 44px; }
  .plan-grid { gap: 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plan-card__image img { height: 250px; }
  .plan-card .project-actions { flex-wrap: nowrap; }
  .project-adapt { padding: 32px; gap: 32px; }
  .wall-story { padding: 36px; gap: 40px; }
  .stone-card__body { padding: 24px; }
  .stone-card .project-actions { flex-wrap: wrap; }
  .stone-card:last-child .stone-card__body { padding: 32px; }
  .reasons, .materials-benefits, .faq-layout { gap: 48px; }
  .materials-head { gap: 40px; }
  .factories li { font-size: 14px; padding: 20px 12px; }
  .materials-steps { gap: 18px; }
  .request-layout { gap: 44px; }
  .form-card { padding: 30px; }
  .footer-top { gap: 40px; }
}
@media (max-width: 800px) {
  .section-space { padding: 80px 0; }
  .direction-head { grid-template-columns: 1fr; gap: 30px; }
  .direction-logo { height: 72px; margin-bottom: 22px; }
  .direction-intro { max-width: 650px; font-size: 17px; }
  .direction-facts { max-width: 560px; }
  .subsection { margin-top: 64px; }
  .block-head { gap: 28px; }
  .block-head > p { max-width: 270px; font-size: 14px; }
  .gallery { grid-auto-rows: 150px; gap: 12px; }
  .plan-card__image img { height: 210px; }
  .plan-card__body { padding: 22px 18px; }
  .plan-card .project-actions { flex-wrap: wrap; }
  .project-title h4 { font-size: 20px; }
  .project-title { flex-wrap: wrap; }
  .project-adapt { display: block; }
  .project-adapt > .btn { margin-top: 24px; }
  .construction-steps { gap: 28px; grid-template-columns: 1fr 1fr; }
  .wall-story { grid-template-columns: 1fr 1fr; gap: 24px; padding: 28px; }
  .wall-visual { height: 190px; gap: 12px; }
  .wall-blocks { height: 160px; width: 155px; }
  .wall-bricks { height: 160px; width: 90px; }
  .wall-notes h3 { font-size: 18px; }
  .wall-notes p { font-size: 13px; }
  .stone-card .project-title h4 { font-size: 22px; }
  .stone-card .project-title > span { font-size: 17px; }
  .stone-card__body { padding: 22px; }
  .stone-card:last-child { grid-template-columns: 1.1fr 1fr; }
  .stone-card:last-child .stone-card__body { padding: 24px; }
  .reasons { grid-template-columns: 1fr; gap: 28px; }
  .materials-head { grid-template-columns: 1.4fr 1fr; gap: 20px; }
  .materials-head p { font-size: 15px; }
  .factories { justify-content: center; border: 0; gap: 10px; }
  .factories li { flex: 1 1 28%; border: 1px solid rgba(255,255,255,.2); border-radius: 10px; padding: 16px; }
  .assortment { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .assortment li { min-height: 170px; padding: 24px; }
  .materials-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; }
  .materials-benefits { gap: 36px; grid-template-columns: 1fr 1.4fr; }
  .materials-benefits .check-list { font-size: 14px; }
  .materials-cta { display: block; }
  .materials-cta p { font-size: 19px; }
  .materials-cta > .btn { margin-top: 26px; }
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .faq-layout > div:first-child { display: flex; align-items: end; gap: 40px; justify-content: space-between; }
  .request-layout { grid-template-columns: 1fr 1fr; gap: 28px; }
  .request h2 { font-size: 34px; }
  .form-card { padding: 26px 22px; }
  .form-card h3 { font-size: 23px; }
  .contact-group > a { font-size: 22px; }
  .request-intro { font-size: 14px; }
  .request-copy > .check-list { font-size: 12px; }
  .form-field select, .form-field input, .form-field textarea { font-size: 14px; padding: 12px; }
  .footer-top { gap: 28px; grid-template-columns: 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 28px; }
  .footer-bottom { flex-wrap: wrap; gap: 12px 28px; justify-content: flex-start; }
  .viewer { width: calc(100vw - 32px); }
  .viewer__inner { padding: 66px 48px 28px; }
  .viewer__stage { grid-template-columns: 1fr; }
  .viewer__media img { max-height: 42dvh; }
}
@media (max-width: 640px) {
  body { padding-bottom: calc(78px + env(safe-area-inset-bottom)); }
  :where(section, [id]) { scroll-margin-top: 84px; }
  .section-space { padding: 60px 0; }
  .direction h2, .materials h2, .faq h2, .request h2 { font-size: 36px; }
  .direction h3, .materials h3 { font-size: 28px; }
  .direction-logo { height: 68px; }
  .direction-intro { font-size: 15px; line-height: 1.7; }
  .direction-facts { gap: 10px; font-size: 11px; margin-top: 24px; padding-top: 20px; }
  .direction-facts b { font-size: 21px; }
  .subsection { margin-top: 48px; }
  .block-head { display: block; margin-bottom: 24px; }
  .block-head > p { max-width: 100%; margin-top: 16px; }
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: 148px; gap: 10px; }
  .gallery__tile { border-radius: 14px; }
  .gallery__tile:nth-child(1) { grid-row: span 1; grid-column: span 2; height: 100%; }
  .gallery__tile:nth-child(2), .gallery__tile:nth-child(5), .gallery__tile:nth-child(6), .gallery__tile:nth-child(9), .gallery__tile:nth-child(10) { grid-column: auto; }
  .gallery__tile:nth-child(6), .gallery__tile:nth-child(11) { grid-column: span 2; }
  .gallery__zoom { height: 28px; width: 28px; font-size: 20px; right: 10px; bottom: 10px; }
  .plan-grid, .stone-grid { grid-template-columns: 1fr; gap: 22px; }
  .plan-card__image { padding: 20px 16px; }
  .plan-card__image img { height: 225px; }
  .plan-card__body { padding: 24px 20px; }
  .project-title { flex-wrap: nowrap; }
  .project-title h4 { font-size: 22px; }
  .project-title > span { font-size: 16px; }
  .plan-card .project-summary { min-height: 0; }
  .room-preview { font-size: 12px; }
  .project-actions { gap: 12px; }
  .project-actions > .btn { width: auto; }
  .btn--small { min-height: 44px; font-size: 11px; padding: 12px 14px; }
  .text-button { font-size: 12px; }
  .project-adapt { padding: 26px 22px; margin-top: 24px; }
  .project-adapt h3 { font-size: 25px; }
  .project-adapt p { font-size: 14px; }
  .project-adapt > .btn { font-size: 13px; padding: 12px; }
  .construction h3 { margin-bottom: 28px; }
  .construction-steps { grid-template-columns: 1fr; gap: 0; }
  .construction-steps li { display: grid; grid-template-columns: 32px 1fr; gap: 14px; padding: 22px 0; }
  .step-number { font-size: 14px; padding-top: 2px; }
  .construction-steps h4 { margin: 0 0 8px; font-size: 17px; }
  .construction-steps p { font-size: 13px; }
  .wall-story { grid-template-columns: 1fr; padding: 28px 24px; gap: 26px; margin-top: 28px; }
  .wall-visual { height: 180px; }
  .wall-blocks { width: 165px; height: 160px; }
  .wall-bricks { width: 88px; height: 160px; }
  .wall-notes > div + div { margin-top: 20px; }
  .wall-notes h3 { font-size: 18px; }
  .stone-card__body { padding: 24px 20px; }
  .stone-card .project-title h4 { font-size: 24px; }
  .stone-card .project-title > span { font-size: 17px; }
  .stone-card .project-actions { margin-top: 16px; display: grid; grid-template-columns: 1fr; gap: 14px; }
  .stone-card .project-actions .text-button { justify-self: start; }
  .stone-card .project-actions .btn { width: 100%; font-size: 13px; }
  .stone-card:last-child { display: block; }
  .stone-card:last-child .stone-card__image img { min-height: 0; height: auto; }
  .stone-card:last-child .stone-card__body { padding: 24px 20px; }
  .stone-card:last-child .project-actions { margin-top: 16px; flex-wrap: nowrap; }
  .reasons { gap: 24px; }
  .reasons-list li { font-size: 14px; padding-top: 18px; padding-bottom: 18px; }
  .materials-head { display: flex; flex-direction: column-reverse; align-items: start; gap: 24px; }
  .materials-art { width: 220px; height: auto; align-self: start; }
  .materials-head p { margin-top: 22px; font-size: 15px; }
  .factories { gap: 8px; margin-top: 30px; }
  .factories li { flex: 1 1 40%; padding: 14px 8px; font-size: 12px; }
  .assortment { gap: 10px; margin-top: 26px; }
  .assortment li { border-radius: 16px; padding: 20px 10px; min-height: 162px; }
  .assortment svg { width: 30px; height: 30px; margin-bottom: 18px; }
  .assortment h4 { font-size: 14px; }
  .assortment p { font-size: 12px; margin-top: 10px; }
  .assortment li:last-child { grid-column: span 2; min-height: 0; }
  .materials-steps { grid-template-columns: 1fr; gap: 0; margin-top: 24px; }
  .materials-steps li { display: grid; grid-template-columns: 30px 1fr; gap: 14px; padding: 22px 0; }
  .materials-steps h4 { margin-top: 0; font-size: 17px; }
  .materials-steps p { font-size: 13px; }
  .materials-benefits { grid-template-columns: 1fr; gap: 26px; }
  .materials-benefits .check-list { font-size: 14px; }
  .materials-cta { margin-top: 40px; padding-top: 28px; }
  .materials-cta p { font-size: 18px; }
  .materials-phone { font-size: 28px; white-space: nowrap; }
  .materials-cta > .btn { font-size: 15px; }
  .faq-layout { gap: 28px; }
  .faq-layout > div:first-child { display: block; }
  .faq-layout > div:first-child > p { font-size: 14px; margin-top: 18px; }
  .faq-layout > div:first-child > p br { display: none; }
  .faq__items summary { font-size: 16px; padding: 22px 0; gap: 18px; }
  .faq__answer { padding: 0 30px 24px 0; font-size: 14px; }
  .request-layout { grid-template-columns: 1fr; gap: 40px; }
  .request-intro { font-size: 15px; }
  .request-copy > .check-list { font-size: 13px; }
  .contacts { margin-top: 36px; }
  .contacts h3 { font-size: 26px; }
  .contact-group > a { font-size: 25px; }
  .form-card { padding: 30px 22px; }
  .form-card h3 { font-size: 25px; }
  .form-field input, .form-field select, .form-field textarea { font-size: 16px; }
  .consent { font-size: 11px; }
  .form-success { padding: 32px 0; }
  .footer { padding: 44px 0 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-about > p { font-size: 13px; max-width: 330px; }
  .footer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 20px; font-size: 12px; }
  .footer-contact { display: flex; font-size: 14px; }
  .footer-logos { justify-content: space-between; gap: 22px; padding: 32px 0; }
  .footer-logos img { height: 56px; max-width: 90px; }
  .footer-logos .footer-synergy { width: 80px; height: 64px; }
  .footer-bottom { display: flex; flex-direction: column; align-items: start; gap: 12px; font-size: 10px; }
  .mobile-bar { position: fixed; bottom: 0; left: 0; right: 0; z-index: 40; background: var(--white); border-top: 1px solid var(--line); padding: 10px 18px calc(10px + env(safe-area-inset-bottom)); display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .mobile-bar a { min-height: 46px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 10px; text-decoration: none; font-size: 14px; font-weight: 700; }
  .mobile-bar a:last-child { border-color: var(--accent); background: var(--accent); color: var(--white); }
  .viewer { width: calc(100vw - 20px); max-height: calc(100dvh - 24px); border-radius: 18px; }
  .viewer__inner { padding: 64px 28px 24px; }
  .viewer__close { width: 36px; height: 36px; top: 12px; right: 12px; }
  .viewer__prev, .viewer__next { width: 30px; height: 38px; top: 180px; border-radius: 8px; font-size: 20px; }
  .viewer__prev { left: 0; }
  .viewer__next { right: 0; }
  .viewer__content h2 { font-size: 25px; }
  .viewer__rooms { font-size: 11px; }
  .viewer[data-mode="gallery"] .viewer__inner { padding-left: 30px; padding-right: 30px; }
  .viewer[data-mode="gallery"] .viewer__content h2 { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .gallery__tile img, .faq__items summary > span::after { transition: none; }
}

/* ---------- полировка 13.11 ---------- */
.reasons-list li b { display: block; margin-bottom: 4px; font-size: 16.5px; color: var(--ink); font-weight: 700; }
.check-list li b { color: inherit; font-weight: 700; }
.materials-benefits .check-list li b { color: var(--white); }