/* Welding Monte — статичный сайт
   Палитра выведена из материала: оцинкованная сталь, окалина и цвета
   побежалости (heat tint), которые проступают на стали рядом со швом. */

:root{
  --ink:#1B1D1C;          /* окалина, основной текст */
  --ink-2:#4A504C;        /* вторичный текст */
  --zinc:#D8DBD6;         /* цинк, фон */
  --zinc-2:#C3C8C2;       /* линии */
  --paper:#F4F5F2;        /* светлые карточки */
  --dark:#14161A;         /* тёмные секции */
  --dark-2:#1E2228;
  --blue:#2A4B7C;         /* синяя побежалость — основной акцент */
  --bronze:#B07A32;       /* бронзовая побежалость — второй акцент */
  --line:rgba(27,29,28,.14);
  --line-l:rgba(244,245,242,.18);

  --disp:"Oswald","Arial Narrow",Arial,sans-serif;
  --body:"IBM Plex Sans","Segoe UI",Arial,sans-serif;
  --mono:"IBM Plex Mono","Courier New",monospace;

  --wrap:1180px;
  --pad:clamp(1.1rem,4vw,2.5rem);
  --r:2px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}
body{
  margin:0;background:var(--zinc);color:var(--ink);
  font-family:var(--body);font-size:17px;line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-inline:var(--pad)}

.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);padding:.6rem 1rem;z-index:100}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px}

/* ── ПОДПИСЬ-ПОБЕЖАЛОСТЬ ─────────────────────────────────────────
   Сигнатурный элемент: полоса цветов побежалости стали. */
.temper{
  height:4px;width:min(340px,70%);margin:1.4rem 0 1.6rem;
  background:linear-gradient(90deg,
    #C9A227 0%, #B05A25 24%, #6B4A8A 48%, #2A4B7C 72%, #4A6E8A 100%);
}

/* ── ШАПКА ─────────────────────────────────────────────────────── */
.hdr{
  position:sticky;top:0;z-index:40;
  background:rgba(216,219,214,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.hdr__in{display:flex;align-items:center;gap:1.4rem;min-height:64px}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;flex-shrink:0}
.brand img{width:40px;height:40px;object-fit:contain;mix-blend-mode:multiply}
.brand__txt{font-family:var(--disp);font-weight:600;font-size:1.12rem;letter-spacing:.045em;text-transform:uppercase}

.nav{display:flex;gap:1.5rem;margin-left:auto;align-items:center}
.nav a{
  font-family:var(--disp);font-weight:400;font-size:.94rem;letter-spacing:.05em;
  text-transform:uppercase;text-decoration:none;padding:.35rem 0;
  border-bottom:1px solid transparent;transition:border-color .18s,color .18s;
}
.nav a:hover{border-bottom-color:var(--blue);color:var(--blue)}
.nav__cta{
  background:var(--ink);color:var(--zinc);padding:.5rem 1.05rem!important;
  border-bottom:none!important;
}
.nav__cta:hover{background:var(--blue);color:#fff}

.lang{display:flex;gap:.15rem;flex-shrink:0}
.lang button{
  font-family:var(--mono);font-size:.76rem;letter-spacing:.06em;
  background:none;border:1px solid var(--line);color:var(--ink-2);
  padding:.3rem .48rem;cursor:pointer;transition:.18s;
}
.lang button:hover{border-color:var(--ink);color:var(--ink)}
.lang button.is-on{background:var(--ink);border-color:var(--ink);color:var(--zinc)}

.burger{display:none;background:none;border:1px solid var(--line);width:42px;height:38px;cursor:pointer;position:relative}
.burger span,.burger span::before,.burger span::after{
  content:"";position:absolute;left:11px;width:18px;height:2px;background:var(--ink);
}
.burger span{top:18px}
.burger span::before{top:-6px;left:0}
.burger span::after{top:6px;left:0}

/* ── ТИПОГРАФИКА ───────────────────────────────────────────────── */
h1,h2,h3{font-family:var(--disp);font-weight:500;letter-spacing:.01em;margin:0 0 .5rem;line-height:1.1;overflow-wrap:break-word}
h1{font-size:clamp(2.6rem,6.4vw,4.5rem);font-weight:600;text-transform:uppercase;letter-spacing:.005em}
h2{font-size:clamp(1.75rem,3.4vw,2.65rem);text-transform:uppercase;letter-spacing:.02em}
h3{font-size:1.16rem;font-weight:600;letter-spacing:.02em}
p{margin:0 0 1rem}

.eyebrow{
  font-family:var(--mono);font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--blue);margin:0 0 .7rem;
}
.eyebrow--l{color:#8FAFD6}
.lead{font-size:1.13rem;color:var(--ink-2);max-width:52ch}
.sec__lead{color:var(--ink-2);max-width:60ch;margin-bottom:2.4rem}

.spec{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--bronze);margin:0 0 .45rem;
}
.cap{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--ink-2);margin-top:.6rem;
}
.cap--l{color:#8B938C}

/* ── КНОПКИ ────────────────────────────────────────────────────── */
.btn{
  display:inline-block;font-family:var(--disp);font-weight:500;font-size:.95rem;
  letter-spacing:.05em;text-transform:uppercase;text-decoration:none;
  padding:.8rem 1.3rem;border:1px solid var(--ink);cursor:pointer;transition:.2s;
}
.btn--solid{background:var(--ink);color:var(--zinc)}
.btn--solid:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.btn--ghost{background:none;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--zinc)}

/* ── ГЕРОЙ ─────────────────────────────────────────────────────── */
.hero{padding:clamp(3rem,7vw,5.5rem) 0 clamp(3rem,6vw,4.5rem);border-bottom:1px solid var(--line)}
.hero__in{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.hero__btns{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.9rem}
.hero__img img{width:100%;aspect-ratio:4/3.4;object-fit:cover;filter:saturate(.9)}
.hero__img{margin:0}

/* ── СЕКЦИИ ────────────────────────────────────────────────────── */
.sec{padding:clamp(3.2rem,6.5vw,5.5rem) 0}
.sec--alt{background:var(--paper);border-block:1px solid var(--line)}
.sec h2{margin-bottom:.9rem}

/* ── КАРТОЧКИ ──────────────────────────────────────────────────── */
/* Длинные слова (МЕТАЛЛОКОНСТРУКЦИИ) не должны распирать колонку сетки */
.hero__in>*,.b2b__in>*,.contact>*,.grid>*,.steps>*{min-width:0}

.grid{display:grid;gap:1.6rem}
.grid--4{grid-template-columns:repeat(4,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--paper);border:1px solid var(--line);padding:0 0 1.4rem}
.sec--alt .card{background:var(--zinc)}
.card__img{overflow:hidden;margin-bottom:1.1rem}
.card__img img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.card__img--contain{background:#343538}
.card__img--contain img{object-fit:contain}
.card:hover .card__img img{transform:scale(1.045)}
.card .spec,.card h3,.card p{padding-inline:1.15rem}
.card p{font-size:.95rem;color:var(--ink-2);margin:0}
.card h3{margin-bottom:.5rem}

/* ── ШАГИ ──────────────────────────────────────────────────────── */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:1.4rem}
.step{border-top:2px solid var(--ink);padding-top:1rem}
.step__n{
  font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;color:var(--bronze);
  display:block;margin-bottom:.5rem;
}
.step h3{font-size:1.02rem;margin-bottom:.4rem}
.step p{font-size:.9rem;color:var(--ink-2);margin:0}

/* ── ГАЛЕРЕЯ ───────────────────────────────────────────────────── */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.gal__i{
  position:relative;padding:0;border:1px solid var(--line);background:var(--paper);
  cursor:pointer;overflow:hidden;display:block;text-align:left;
}
.gal__i img{width:100%;aspect-ratio:1/1;object-fit:cover;transition:transform .5s ease,filter .3s}
.gal__i:hover img{transform:scale(1.05);filter:brightness(.82)}
.gal__cap{
  position:absolute;left:0;right:0;bottom:0;padding:.7rem .8rem;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;
  color:#fff;background:linear-gradient(transparent,rgba(20,22,26,.88));
  opacity:0;transition:opacity .25s;
}
.gal__i:hover .gal__cap,.gal__i:focus-visible .gal__cap{opacity:1}

/* ── B2B ───────────────────────────────────────────────────────── */
.b2b{background:var(--dark);color:#E4E7E3;padding:clamp(3.4rem,6.5vw,5.5rem) 0}
.b2b__in{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.b2b h2{color:#fff}
.b2b p{color:#A9B0AA;max-width:54ch}
.b2b__img{margin:0}
.b2b__img img{width:100%;aspect-ratio:4/3.2;object-fit:cover;filter:saturate(.75) contrast(1.05)}
.b2b .btn--solid{background:var(--blue);border-color:var(--blue);color:#fff;margin-top:1.7rem}
.b2b .btn--solid:hover{background:#fff;border-color:#fff;color:var(--dark)}
.ticks{list-style:none;margin:1.5rem 0 0;padding:0}
.ticks li{
  position:relative;padding-left:1.6rem;margin-bottom:.62rem;
  font-size:.98rem;color:#C6CCC6;border-bottom:1px solid var(--line-l);padding-bottom:.62rem;
}
.ticks li::before{content:"";position:absolute;left:0;top:.62em;width:9px;height:9px;background:var(--bronze)}

/* ── КОНТАКТ ───────────────────────────────────────────────────── */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.info{margin:2rem 0 0;display:grid;grid-template-columns:auto 1fr;gap:.55rem 1.4rem}
.info dt{font-family:var(--mono);font-size:.73rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);padding-top:.2rem}
.info dd{margin:0;font-weight:500}
.info dd a{text-decoration-thickness:1px;text-underline-offset:.15em}

.chat-links{background:var(--zinc);border:1px solid var(--line);padding:clamp(1.4rem,3vw,2.1rem)}
.chat-links h3{font-size:1.55rem;text-transform:uppercase;margin-bottom:1.4rem}
.chat-link{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1rem 1.1rem;margin-top:.7rem;background:var(--paper);
  border:1px solid var(--line);text-decoration:none;
  transition:background .2s,color .2s,border-color .2s;
}
.chat-link:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.chat-link__name{font-family:var(--disp);font-size:1.12rem;font-weight:500;letter-spacing:.04em}
.chat-link__number{font-family:var(--mono);font-size:.75rem;white-space:nowrap}

/* ── ПОДВАЛ ────────────────────────────────────────────────────── */
.ftr{background:var(--dark);color:#8B938C;padding:2.4rem 0;border-top:1px solid var(--line-l)}
.ftr__in{display:flex;align-items:center;gap:2rem;flex-wrap:wrap}
.ftr__brand{display:flex;align-items:center;gap:.7rem}
.ftr__brand img{width:36px;height:36px;object-fit:contain;background:#fff;padding:2px}
.ftr__name{font-family:var(--disp);font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:#E4E7E3;margin:0;font-size:.98rem}
.ftr__sub{font-size:.8rem;margin:0}
.ftr__nav{display:flex;gap:1.3rem;margin-left:auto;flex-wrap:wrap}
.ftr__nav a{
  font-family:var(--disp);font-size:.88rem;letter-spacing:.05em;text-transform:uppercase;
  text-decoration:none;color:#A9B0AA;transition:color .18s;
}
.ftr__nav a:hover{color:#fff}
.ftr__cr{font-family:var(--mono);font-size:.72rem;margin:0;width:100%;padding-top:1.3rem;border-top:1px solid var(--line-l)}

/* ── ЛАЙТБОКС ──────────────────────────────────────────────────── */
.lb{position:fixed;inset:0;z-index:90;background:rgba(20,22,26,.94);display:flex;align-items:center;justify-content:center;padding:2rem}
.lb[hidden]{display:none}
.lb__fig{margin:0;max-width:min(1000px,92vw);text-align:center}
.lb__fig img{max-height:80vh;width:auto;margin:0 auto}
.lb__fig figcaption{
  font-family:var(--mono);font-size:.75rem;letter-spacing:.09em;text-transform:uppercase;
  color:#A9B0AA;margin-top:1rem;
}
.lb__x{
  position:absolute;top:1.1rem;right:1.4rem;background:none;border:none;
  color:#fff;font-size:2.4rem;line-height:1;cursor:pointer;padding:.2rem .6rem;
}

/* ── АДАПТИВ ───────────────────────────────────────────────────── */
@media (max-width:1000px){
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .gal{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:860px){
  .burger{display:block;order:3;margin-left:.6rem}
  .lang{order:2;margin-left:auto}
  .nav{
    order:4;width:100%;flex-direction:column;align-items:flex-start;gap:0;
    margin-left:0;display:none;padding-bottom:.8rem;
  }
  .nav.is-open{display:flex}
  .nav a{width:100%;padding:.7rem 0;border-bottom:1px solid var(--line)}
  .nav__cta{text-align:center;margin-top:.7rem}
  .hdr__in{flex-wrap:wrap}
  .hero__in,.b2b__in,.contact{grid-template-columns:1fr}
  .hero__img{order:-1}
  .b2b__img{order:-1}
}
@media (max-width:620px){
  body{font-size:16px}
  .hdr__in{gap:.55rem;min-height:58px}
  .brand img{width:34px;height:34px}
  .brand__txt{font-size:.92rem;letter-spacing:.03em}
  .lang button{padding:.28rem .38rem;font-size:.7rem}
  .burger{width:38px;height:34px;margin-left:.35rem}
  .burger span,.burger span::before,.burger span::after{left:10px;width:17px}
  .burger span{top:16px}
  .grid--4,.grid--3,.steps{grid-template-columns:1fr}
  .gal{grid-template-columns:repeat(2,1fr)}
  .hero__btns .btn{width:100%;text-align:center}
  .info{grid-template-columns:1fr;gap:.2rem 0}
  .info dd{margin-bottom:.7rem}
  .chat-link{align-items:flex-start;flex-direction:column;gap:.2rem}
}