:root{
  --navy:#0E1F33;
  --navy-deep:#091729;
  --ink:#1B2B3F;
  --paper:#F2EDE4;
  --line:rgba(242,237,228,.16);
  --line-strong:rgba(242,237,228,.34);
  --terra:#C96F4A;
  --terra-bright:#E08A63;
  --muted:rgba(242,237,228,.62);
  --grid:rgba(242,237,228,.05);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Manrope',sans-serif;
  background:var(--navy);
  color:var(--paper);
  line-height:1.6;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:56px 56px;
}
h1,h2,h3,.display{font-family:'Unbounded',sans-serif;line-height:1.15}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ===== эскизная подпись (эйбрау) ===== */
.eyebrow{
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--terra-bright);font-weight:600;
  display:flex;align-items:center;gap:12px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--terra)}

/* ===== шапка ===== */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(9,23,41,.88);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{font-family:'Unbounded';font-weight:800;font-size:17px;letter-spacing:.06em;text-decoration:none}
.logo span{color:var(--terra-bright)}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{text-decoration:none;font-size:14px;color:var(--muted);transition:color .2s}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--paper)}
.nav-cta{
  background:var(--terra);color:var(--navy-deep);text-decoration:none;
  padding:9px 18px;border-radius:3px;font-weight:700;font-size:13px;
  transition:background .2s;
}
.nav-cta:hover{background:var(--terra-bright)}
.burger{display:none;background:none;border:1px solid var(--line-strong);color:var(--paper);
  width:40px;height:40px;border-radius:3px;font-size:18px;cursor:pointer}

/* ===== hero: чертёжный лист ===== */
.hero{padding:96px 0 84px;position:relative;overflow:hidden}
.hero .frame{
  border:1px solid var(--line-strong);
  padding:64px 48px 56px;position:relative;
}
/* размерные линии — сигнатурный элемент */
.dim{position:absolute;font-size:11px;letter-spacing:.14em;color:var(--muted);font-weight:500}
.dim-top{top:-9px;left:0;right:0;text-align:center;background:var(--navy);width:max-content;margin:0 auto;padding:0 12px}
.dim-left{left:-9px;top:50%;transform:rotate(-90deg) translateX(50%);transform-origin:left center;background:var(--navy);padding:0 12px}
.corner{position:absolute;width:14px;height:14px;border:1px solid var(--terra)}
.corner.tl{top:-7px;left:-7px;border-right:none;border-bottom:none}
.corner.tr{top:-7px;right:-7px;border-left:none;border-bottom:none}
.corner.bl{bottom:-7px;left:-7px;border-right:none;border-top:none}
.corner.br{bottom:-7px;right:-7px;border-left:none;border-top:none}

.hero h1{font-size:clamp(30px,5vw,58px);font-weight:800;max-width:820px}
.hero h1 em{font-style:normal;color:var(--terra-bright)}
.hero p.lead{margin-top:22px;max-width:560px;color:var(--muted);font-size:17px}
.hero-actions{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-block;text-decoration:none;font-weight:700;font-size:15px;
  padding:14px 28px;border-radius:3px;transition:.2s;
}
.btn-primary{background:var(--terra);color:var(--navy-deep)}
.btn-primary:hover{background:var(--terra-bright)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--paper)}
.btn-ghost:hover{border-color:var(--terra);color:var(--terra-bright)}
.hero-stamp{
  position:absolute;right:40px;bottom:32px;
  font-size:11px;letter-spacing:.2em;color:var(--muted);
  border:1px solid var(--line-strong);padding:8px 14px;transform:rotate(-3deg);
}

/* ===== секции ===== */
section{padding:88px 0}
.sec-head{margin-bottom:48px}
.sec-head h2{font-size:clamp(24px,3.4vw,38px);font-weight:600}
.sec-head p{color:var(--muted);margin-top:12px;max-width:600px}

/* ===== услуги ===== */
.services{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.service{background:var(--navy);padding:34px 28px;position:relative;transition:background .25s}
.service:hover{background:var(--ink)}
.service .code{font-size:11px;letter-spacing:.2em;color:var(--terra-bright);font-weight:600}
.service h3{font-size:17px;margin:14px 0 10px;font-weight:600}
.service p{font-size:14px;color:var(--muted);min-height:66px}
.service .price{margin-top:20px;font-family:'Unbounded';font-size:19px;font-weight:600}
.service .price small{display:block;font-family:'Manrope';font-size:12px;color:var(--muted);font-weight:500;margin-top:4px}

/* ===== табы визуализации/чертежи ===== */
.tabs{
  display:inline-flex;gap:0;
  border:1px solid var(--line-strong);
  margin-bottom:36px;border-radius:3px;overflow:hidden;
}
.tab{
  background:none;border:none;color:var(--muted);font-family:'Manrope';font-weight:600;
  font-size:14px;padding:12px 26px;cursor:pointer;transition:.2s;
  letter-spacing:.02em;
}
.tab[aria-selected="true"]{background:var(--terra);color:var(--navy-deep)}
.tab:not([aria-selected="true"]):hover{color:var(--paper)}

/* ===== портфолио: карточки проектов ===== */
.projects{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:24px}

/* ===== пустое состояние для чертежей ===== */
.dwg-empty{
  border:1px solid var(--line-strong);
  padding:60px 40px;text-align:center;
}
.dwg-empty-inner{max-width:520px;margin:0 auto;color:var(--muted)}
.dwg-empty svg{color:var(--terra);opacity:.7;margin:0 auto 22px}
.dwg-empty h3{font-family:'Unbounded';font-size:20px;color:var(--paper);margin-bottom:14px;font-weight:600}
.dwg-empty p{font-size:14px;line-height:1.65;margin-bottom:26px}
.project{
  position:relative;border:1px solid var(--line);background:var(--navy-deep);
  cursor:pointer;overflow:hidden;transition:border-color .25s;
  display:block;text-align:left;width:100%;padding:0;
  font-family:inherit;color:inherit;
}
.project:hover,.project:focus-visible{border-color:var(--terra);outline:none}
.project-media{aspect-ratio:4/3;overflow:hidden;position:relative;background:var(--navy-deep)}
.project-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.project:hover .project-media img{transform:scale(1.04)}
.project-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to bottom, transparent 55%, rgba(9,23,41,.75) 100%);
  pointer-events:none;
}
.project-badge{
  position:absolute;top:14px;right:14px;z-index:2;
  background:rgba(9,23,41,.72);backdrop-filter:blur(8px);
  border:1px solid var(--line-strong);padding:6px 12px;border-radius:3px;
  font-size:11px;letter-spacing:.14em;color:var(--paper);font-weight:600;
}
.project-meta{
  padding:22px 24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.project-meta .code{font-size:11px;letter-spacing:.2em;color:var(--terra-bright);font-weight:600;display:block;margin-bottom:6px}
.project-meta h3{font-family:'Unbounded';font-size:19px;font-weight:600;line-height:1.2}
.project-meta .loc{font-size:13px;color:var(--muted);margin-top:6px}
.project-arrow{
  width:44px;height:44px;flex-shrink:0;
  border:1px solid var(--line-strong);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--paper);font-size:18px;transition:.25s;
}
.project:hover .project-arrow{background:var(--terra);border-color:var(--terra);color:var(--navy-deep)}

[hidden]{display:none !important}

/* ===== лайтбокс ===== */
.lb{
  position:fixed;inset:0;z-index:100;background:rgba(9,23,41,.96);
  backdrop-filter:blur(12px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:20px;
}
.lb-head{
  position:absolute;top:20px;left:24px;right:80px;
  display:flex;justify-content:space-between;align-items:center;gap:20px;
}
.lb-title{font-family:'Unbounded';font-size:17px;font-weight:600;color:var(--paper)}
.lb-count{font-size:13px;letter-spacing:.14em;color:var(--muted);font-weight:600}
.lb-close{
  position:absolute;top:20px;right:24px;
  width:44px;height:44px;border:1px solid var(--line-strong);
  background:transparent;color:var(--paper);border-radius:50%;
  font-size:16px;cursor:pointer;transition:.2s;
}
.lb-close:hover{background:var(--terra);border-color:var(--terra);color:var(--navy-deep)}
.lb-stage{
  max-width:1300px;width:100%;height:calc(100vh - 140px);
  display:flex;align-items:center;justify-content:center;
}
.lb-stage img{max-width:100%;max-height:100%;object-fit:contain;border:1px solid var(--line)}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:56px;height:56px;border:1px solid var(--line-strong);
  background:rgba(9,23,41,.7);color:var(--paper);border-radius:50%;
  font-size:28px;line-height:1;cursor:pointer;transition:.2s;
  display:flex;align-items:center;justify-content:center;
}
.lb-nav:hover{background:var(--terra);border-color:var(--terra);color:var(--navy-deep)}
.lb-prev{left:24px}
.lb-next{right:24px}
body.lb-open{overflow:hidden}

/* ===== этапы ===== */
.stages{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;counter-reset:st}
.stage{border-left:2px solid var(--terra);padding:4px 0 4px 20px}
.stage h3{font-size:15px;font-weight:600;margin-bottom:8px}
.stage h3::before{
  counter-increment:st;content:"0" counter(st);
  display:block;font-family:'Unbounded';color:var(--terra-bright);
  font-size:12px;letter-spacing:.2em;margin-bottom:10px;
}
.stage p{font-size:14px;color:var(--muted)}

/* ===== контакты ===== */
.contact{background:var(--navy-deep);border-top:1px solid var(--line)}
.contact-inner{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:start}
.contact h2{font-size:clamp(24px,3.4vw,38px)}
.contact-list{list-style:none;margin-top:28px;display:grid;gap:16px}
.contact-list a{text-decoration:none;color:var(--paper);font-size:17px;font-weight:600}
.contact-list a:hover{color:var(--terra-bright)}
.contact-list li span{display:block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.wa-btn{
  display:inline-flex;align-items:center;gap:10px;margin-top:34px;
  background:var(--terra);color:var(--navy-deep);text-decoration:none;
  padding:16px 30px;border-radius:3px;font-weight:700;font-size:16px;transition:.2s;
}
.wa-btn:hover{background:var(--terra-bright)}

footer{border-top:1px solid var(--line);padding:26px 0;font-size:13px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

@media (max-width:820px){
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;
    background:var(--navy-deep);flex-direction:column;padding:20px 24px;gap:18px;
    border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .burger{display:block}
  .hero .frame{padding:44px 24px}
  .hero-stamp{display:none}
  .contact-inner{grid-template-columns:1fr}
  section{padding:64px 0}
  .tabs{display:flex;width:100%}
  .tab{flex:1;padding:12px 10px;text-align:center}
  .dwg-empty{padding:44px 22px}
  .projects{grid-template-columns:1fr;gap:18px}
  .project-meta{padding:18px 20px}
  .project-meta h3{font-size:16px}
  .project-arrow{width:38px;height:38px}
  .lb-head{left:16px;right:70px}
  .lb-title{font-size:14px}
  .lb-nav{width:44px;height:44px;font-size:22px}
  .lb-prev{left:8px}.lb-next{right:8px}
  .lb-stage{height:calc(100vh - 120px)}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ===== v2: SEO-страницы, FAQ, акция ===== */
.skip{position:absolute;left:-9999px}
.service{display:flex;flex-direction:column}
.service .more{margin-top:18px;font-size:13px;font-weight:700;color:var(--terra-bright);text-decoration:none;letter-spacing:.02em}
.service .more:hover{color:var(--paper)}
.service .price s{font-family:'Manrope';font-size:14px;color:var(--muted);font-weight:500;margin-left:8px}
.promo{display:inline-block;margin-top:12px;background:var(--terra);color:var(--navy-deep);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border-radius:2px;align-self:flex-start}
.service.featured{background:var(--ink)}

/* блок «пример расчёта» */
.calc{border:1px solid var(--line-strong);margin-top:28px}
.calc table{width:100%;border-collapse:collapse;font-size:15px}
.calc caption{text-align:left;padding:16px 20px;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--terra-bright);font-weight:600;border-bottom:1px solid var(--line)}
.calc th,.calc td{padding:14px 20px;border-bottom:1px solid var(--line);text-align:left;font-weight:500}
.calc td:last-child,.calc th:last-child{text-align:right;font-family:'Unbounded';font-weight:600;white-space:nowrap}
.calc tr:last-child td{border-bottom:none}
.calc .note{padding:14px 20px;font-size:13px;color:var(--muted);border-top:1px solid var(--line)}

/* FAQ */
.faq{display:grid;gap:0;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:22px 44px 22px 0;position:relative;font-weight:600;font-size:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:18px;font-family:'Unbounded';font-size:20px;color:var(--terra-bright);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 22px;color:var(--muted);max-width:760px;font-size:15px}
.faq summary:focus-visible{outline:2px solid var(--terra);outline-offset:4px}

/* страницы услуг */
.crumbs{display:block;height:auto;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a{text-decoration:none;color:var(--muted)}
.crumbs a:hover{color:var(--terra-bright)}
.page-hero{padding:72px 0 40px}
.page-hero h1{font-size:clamp(28px,4.4vw,50px);font-weight:800;max-width:900px}
.page-hero h1 em{font-style:normal;color:var(--terra-bright)}
.page-hero .lead{margin-top:20px;max-width:680px;color:var(--muted);font-size:17px}
.price-row{display:flex;flex-wrap:wrap;gap:1px;background:var(--line);border:1px solid var(--line);margin-top:34px;max-width:900px}
.price-row div{background:var(--navy);padding:20px 24px;flex:1 1 180px}
.price-row span{display:block;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:6px}
.price-row b{font-family:'Unbounded';font-size:20px;font-weight:600}
.price-row s{color:var(--muted);font-size:13px;margin-left:6px}
.prose{max-width:780px}
.prose p{color:var(--muted);margin-bottom:16px;font-size:16px}
.prose p strong{color:var(--paper)}
.sheets{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);counter-reset:sh}
.sheets li{background:var(--navy);padding:18px 22px 18px 64px;position:relative;font-size:15px}
.sheets li::before{counter-increment:sh;content:counter(sh,decimal-leading-zero);position:absolute;left:22px;top:18px;font-family:'Unbounded';font-size:12px;color:var(--terra-bright);letter-spacing:.1em}
.sheets li small{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.compare{width:100%;border-collapse:collapse;border:1px solid var(--line-strong);font-size:15px}
.compare th,.compare td{padding:14px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.compare thead th{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--terra-bright);font-weight:600}
.compare td{color:var(--muted)}
.compare td:first-child{color:var(--paper);font-weight:600}
.table-scroll{overflow-x:auto}
.related{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.related a{background:var(--navy);padding:24px;text-decoration:none;transition:background .2s}
.related a:hover{background:var(--ink)}
.related b{display:block;font-size:16px;margin-bottom:6px}
.related span{font-size:13px;color:var(--muted)}
.cta-band{border:1px solid var(--line-strong);padding:40px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);font-weight:600}
.cta-band p{color:var(--muted);margin-top:8px}
@media (max-width:820px){
  .page-hero{padding:48px 0 24px}
  .cta-band{padding:28px 22px}
  .calc th,.calc td{padding:12px 14px}
  .sheets li{padding-left:56px}
}

/* блок о дизайнере */
.about{display:grid;grid-template-columns:1fr 1.3fr;gap:48px;align-items:start}
.stats{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.stats div{background:var(--navy);padding:22px 26px}
.stats b{display:block;font-family:'Unbounded';font-size:clamp(28px,4vw,40px);font-weight:800;color:var(--terra-bright);line-height:1.1}
.stats span{font-size:14px;color:var(--muted)}
@media (max-width:820px){.about{grid-template-columns:1fr;gap:28px}.stats b{font-size:21px}.stats{grid-template-columns:repeat(3,1fr)}.stats div{padding:16px 12px}.stats span{font-size:12px}}

/* листы рабочих проектов */
.sheet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(420px,1fr));gap:20px}
.sheet-fig{border:1px solid var(--line);background:var(--navy-deep);margin:0}
.sheet-fig img{width:100%;height:auto;background:#fff;display:block}
.sheet-fig figcaption{padding:14px 18px;font-size:14px;font-weight:600;border-top:1px solid var(--line)}
.sheet-fig figcaption span{display:block;font-size:11px;letter-spacing:.18em;color:var(--terra-bright);margin-bottom:4px;text-transform:uppercase}
.project-media img[src*="/drawings/"]{object-fit:contain;background:#fff}
@media (max-width:820px){.sheet-grid{grid-template-columns:1fr}}