/* =========================================================================
   АЛЮМС — alums-fasad.ru
   Дизайн-система: тёмная «архитектурная» тема, моно-подписи, крупный дисплей.
   ========================================================================= */

/* ---------- 1. Токены ---------- */
:root{
  --bg:#080A0A;
  --bg-2:#0B0F0E;
  --panel:#0F1413;
  --panel-2:#121917;
  --ink:#EDF2EE;
  --ink-2:#B9C4BF;
  --dim:#7C8A84;
  --line:rgba(233,242,238,.11);
  --line-2:rgba(233,242,238,.2);
  --accent:#2FC8B8;
  --accent-2:#8FE9DD;
  --accent-soft:rgba(47,200,184,.12);
  --graphite:#2A3330;

  --f-display:'Unbounded','Onest',system-ui,sans-serif;
  --f-text:'Onest',system-ui,-apple-system,'Segoe UI',sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,Menlo,monospace;

  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --pad:clamp(20px,4.2vw,64px);
  --max:1440px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--f-text);font-size:clamp(15px,.55vw + 13px,16.5px);
  line-height:1.55;font-weight:380;letter-spacing:-.005em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;height:100vh}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;padding:0}
ul,ol{list-style:none}
::selection{background:var(--accent);color:#04100E}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:16px;top:-60px;z-index:200;background:var(--accent);color:#04100E;padding:10px 16px;border-radius:8px;transition:top .2s}
.skip:focus-visible{top:16px}

.mono{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:400;color:var(--dim)}
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--pad)}

.mark__a{stroke:var(--accent)}
.mark__b{fill:var(--graphite)}

/* ---------- 2. Кнопки ---------- */
.btn{
  --btn-bg:transparent;--btn-fg:var(--ink);--btn-bd:var(--line-2);
  position:relative;display:inline-flex;align-items:center;gap:.6em;
  padding:15px 24px;border-radius:100px;border:1px solid var(--btn-bd);
  background:var(--btn-bg);color:var(--btn-fg);
  font-family:var(--f-text);font-size:14px;font-weight:500;letter-spacing:.005em;
  transition:background .35s var(--ease),color .35s var(--ease),border-color .35s var(--ease),transform .35s var(--ease);
  will-change:transform;
}
.btn__i{width:17px;height:17px;flex:none;transition:transform .35s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:hover .btn__i{transform:translateX(3px)}
.btn--accent{--btn-bg:var(--accent);--btn-fg:#04100E;--btn-bd:var(--accent);font-weight:600}
.btn--accent:hover{--btn-bg:var(--accent-2);--btn-bd:var(--accent-2)}
.btn--ghost{--btn-bg:rgba(255,255,255,.03);backdrop-filter:blur(8px)}
.btn--ghost:hover{--btn-bg:rgba(255,255,255,.08)}
.btn--sm{padding:11px 18px;font-size:13px}
.btn--block{width:100%;justify-content:center;padding:17px 24px}

/* =========================================================================
   3. ИНТРО (гейдж + раздача карточек)
   ========================================================================= */
.intro{
  display:none;position:fixed;inset:0;z-index:120;background:var(--bg);
  align-items:center;justify-content:center;overflow:hidden;
}
.js .intro{display:flex}
.intro__stage{position:relative;width:min(560px,86vw);display:flex;flex-direction:column;gap:clamp(18px,3vw,32px)}
.intro__head{display:grid;grid-template-columns:auto 1fr;gap:10px 18px;align-items:end}
.intro__mark{width:62px;height:auto;display:block;clip-path:inset(0 0 100% 0);animation:markRise .85s var(--ease-out) .12s forwards}
@keyframes markRise{to{clip-path:inset(0 0 0 0)}}
.intro__meta{display:flex;flex-direction:column;gap:6px;min-width:0;align-items:flex-start}
.intro__meta .mono{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.intro__counter{color:var(--ink);font-size:12px;letter-spacing:.1em;align-self:flex-end;margin-top:-18px;white-space:nowrap}
.intro__counter b{font-weight:500}
.intro__counter i{font-style:normal;color:var(--dim)}
.intro__bar{grid-column:1/-1;height:1px;background:var(--line);position:relative;overflow:hidden}
.intro__bar span{position:absolute;inset:0 auto 0 0;width:0;background:var(--accent);animation:gauge 1.55s cubic-bezier(.4,0,.2,1) .15s forwards}

.intro__cards{position:relative;height:clamp(180px,32vh,300px);display:block}
.intro__card{
  position:absolute;inset:0;margin:0;border-radius:var(--r-m);overflow:hidden;
  box-shadow:0 30px 60px -20px rgba(0,0,0,.8);
  opacity:0;transform:translateY(30px) scale(.9);
  animation:deal .85s var(--ease-out) forwards;
}
.intro__card[data-i="1"]{--fx:-10%;--fy:-26px;--fr:-4.5deg;--fs:.9;z-index:2;animation-delay:.42s}
.intro__card[data-i="2"]{--fx:7%;--fy:-14px;--fr:4deg;--fs:.94;z-index:3;animation-delay:.6s}
.intro__card[data-i="3"]{--fx:0;--fy:0;--fr:0deg;--fs:1;z-index:4;animation-delay:.78s}
.intro__card img{width:100%;height:100%;object-fit:cover;filter:saturate(1.02)}
.intro.is-expanding .intro__card[data-i="3"]{
  animation:expand .8s cubic-bezier(.62,0,.25,1) forwards;z-index:9;
}
.intro.is-done{opacity:0;transition:opacity .45s ease;pointer-events:none}

@keyframes draw{to{stroke-dashoffset:0}}
@keyframes fadeIn{to{opacity:1}}
@keyframes gauge{to{width:100%}}
@keyframes deal{
  0%{opacity:0}
  100%{opacity:1;transform:translate(var(--fx,0),var(--fy,0)) rotate(var(--fr,0)) scale(var(--fs,1))}
}
@keyframes expand{
  from{opacity:1;transform:none;border-radius:var(--r-m)}
  to{opacity:1;transform:scale(var(--expand,3.6));border-radius:0}
}

/* =========================================================================
   4. ШАПКА
   ========================================================================= */
.nav{
  position:fixed;inset:0 0 auto;z-index:90;
  display:flex;align-items:center;gap:clamp(16px,3vw,40px);
  padding:16px var(--pad);
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease),border-color .4s var(--ease),padding .4s var(--ease),backdrop-filter .4s;
}
.nav.is-stuck{
  background:rgba(8,10,10,.72);backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:var(--line);padding-block:11px;
}
.nav__logo{display:flex;align-items:center;flex:none}
.nav__logo img{display:block;height:56px;width:auto;transition:height .4s var(--ease)}
.nav.is-stuck .nav__logo img{height:40px}
.nav__links{display:flex;gap:clamp(10px,1.6vw,26px);margin-inline:auto}
.nav__links a{
  position:relative;font-size:13.5px;color:var(--ink-2);padding:6px 0;transition:color .3s;
}
.nav__links a::after{content:'';position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.nav__links a:hover{color:var(--ink)}
.nav__links a:hover::after{transform:scaleX(1)}
.nav__side{display:flex;align-items:center;gap:16px;flex:none}
.nav__phone{font-family:var(--f-mono);font-size:12.5px;letter-spacing:.04em;color:var(--ink-2);transition:color .3s}
.nav__phone:hover{color:var(--accent)}
.nav__burger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:50%;position:relative}
.nav__burger span{position:absolute;left:11px;right:11px;height:1.5px;background:var(--ink);transition:transform .35s var(--ease),opacity .2s}
.nav__burger span:first-child{top:16px}
.nav__burger span:last-child{top:22px}
.nav__burger[aria-expanded="true"] span:first-child{transform:translateY(3px) rotate(45deg)}
.nav__burger[aria-expanded="true"] span:last-child{transform:translateY(-3px) rotate(-45deg)}

.mobile-menu{
  position:fixed;inset:0;z-index:85;background:rgba(8,10,10,.97);backdrop-filter:blur(20px);
  padding:110px var(--pad) 40px;display:flex;flex-direction:column;justify-content:space-between;
}
.mobile-menu[hidden]{display:none}
.mobile-menu nav{display:flex;flex-direction:column;gap:4px}
.mobile-menu nav a{
  font-family:var(--f-display);font-size:clamp(22px,7vw,34px);font-weight:500;
  padding:12px 0;border-bottom:1px solid var(--line);
}
.mobile-menu__foot{display:flex;flex-direction:column;gap:8px;padding-top:24px}
.mobile-menu__foot a{font-family:var(--f-mono);font-size:13px;color:var(--ink-2)}

/* =========================================================================
   5. HERO
   ========================================================================= */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;isolation:isolate}
.hero__media{position:absolute;inset:0;z-index:-2;background:#050807}
.hero__img,.hero__video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:62% 50%}
.hero__img{z-index:0}
.hero__video{z-index:1}
.hero__video{opacity:0;transition:opacity 1.2s ease}
.hero__video.is-on{opacity:1}
.hero__media::after{
  content:'';position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(6,9,8,.72) 0%,rgba(6,9,8,.18) 36%,rgba(6,9,8,.55) 76%,var(--bg) 100%),
    linear-gradient(90deg,rgba(6,9,8,.85) 0%,rgba(6,9,8,.28) 46%,rgba(6,9,8,0) 72%);
}
.hero__grain{
  position:absolute;inset:0;opacity:.05;mix-blend-mode:overlay;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
.hero__inner{position:relative;padding:clamp(120px,16vh,190px) var(--pad) clamp(28px,4vh,48px);display:flex;flex-direction:column;gap:clamp(18px,2.4vw,30px)}
.hero__eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:rgba(237,242,238,.86);text-shadow:0 1px 18px rgba(4,8,7,.75)}
.pulse{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(47,200,184,.6);animation:pulse 2.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(47,200,184,.5)}70%{box-shadow:0 0 0 9px rgba(47,200,184,0)}100%{box-shadow:0 0 0 0 rgba(47,200,184,0)}}

.hero__title{
  font-family:var(--f-display);font-weight:600;
  font-size:clamp(28px,6.4vw,5.9rem);line-height:.98;letter-spacing:-.03em;
  max-width:17ch;
}
.hero__title .line{display:block;overflow:hidden;padding-bottom:.06em}
.hero__title .line>span{display:block;transform:translateY(110%);transition:transform 1.05s var(--ease-out)}
.hero__title em{
  font-style:normal;color:transparent;
  background:linear-gradient(96deg,var(--accent) 0%,var(--accent-2) 60%,#DFFBF5 100%);
  -webkit-background-clip:text;background-clip:text;
}
.is-live .hero__title .line:nth-child(1)>span{transition-delay:.05s}
.is-live .hero__title .line:nth-child(2)>span{transition-delay:.14s}
.is-live .hero__title .line:nth-child(3)>span{transition-delay:.23s}
.is-live .hero__title .line>span{transform:translateY(0)}

.hero__foot{display:flex;flex-wrap:wrap;align-items:flex-end;gap:clamp(20px,4vw,56px);justify-content:space-between;padding-right:clamp(0px,17vw,290px)}
.hero__lead{max-width:42ch;color:var(--ink-2);text-shadow:0 1px 20px rgba(4,8,7,.7);font-size:clamp(14.5px,1.1vw,17px);line-height:1.6}
.hero__cta{display:flex;flex-wrap:wrap;gap:10px}

.hero__strip{border-top:1px solid var(--line);background:rgba(8,10,10,.4);backdrop-filter:blur(14px)}
.hero__strip-in{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;max-width:var(--max);margin-inline:auto;padding-inline:0}
.hero__strip-in>div{padding:18px clamp(12px,2vw,28px);border-left:1px solid var(--line);display:flex;flex-direction:column;gap:3px}
.hero__strip-in>div:first-child{border-left:0}
.hero__strip-in b{font-family:var(--f-display);font-size:clamp(15px,1.5vw,21px);font-weight:500;letter-spacing:-.01em}
.hero__strip-in span{font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}
.hero__strip-100 b{color:var(--accent)}

/* =========================================================================
   6. Секции
   ========================================================================= */
.sec{position:relative;padding-block:clamp(64px,10vh,132px)}
.sec__head{display:flex;flex-direction:column;gap:18px;margin-bottom:clamp(32px,5vw,60px)}
.sec__head--row{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:clamp(20px,4vw,64px);flex-wrap:wrap}
.sec__idx{display:block;color:var(--accent);opacity:.85}
.sec__title{
  font-family:var(--f-display);font-weight:500;
  font-size:clamp(27px,3.7vw,54px);line-height:1.06;letter-spacing:-.028em;
  margin-top:14px;max-width:20ch;
}
.sec__note{max-width:34ch;color:var(--ink-2);font-size:14.5px;line-height:1.6}
.sec--why{border-top:1px solid var(--line);background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}

/* ---------- 6.1 Преимущества ---------- */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden}
.why__card{position:relative;background:var(--bg);padding:clamp(22px,2.6vw,34px);display:flex;flex-direction:column;gap:12px;min-height:250px;transition:background .5s var(--ease)}
.why__card:hover{background:var(--panel)}
.why__num{color:var(--accent)}
.why__card h3{font-family:var(--f-display);font-size:clamp(17px,1.5vw,21px);font-weight:500;margin-top:auto;letter-spacing:-.02em}
.why__card p{color:var(--ink-2);font-size:14px;line-height:1.6;max-width:30ch}
.why__tag{align-self:flex-start;padding:5px 10px;border:1px solid var(--line-2);border-radius:100px;font-size:9.5px;color:var(--ink-2)}
.why__card::after{
  content:'';position:absolute;inset:auto 0 0 0;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .55s var(--ease);
}
.why__card:hover::after{transform:scaleX(1)}

/* ---------- 6.2 Фасады ---------- */
.sec--facades{background:var(--bg)}
.disc{display:flex;align-items:center;gap:14px;flex:none}
.disc__list{position:relative;height:22px;width:150px;overflow:hidden}
.disc__list li{
  position:absolute;inset:0;font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent);display:flex;align-items:center;
  transform:translateY(100%);opacity:0;transition:transform .6s var(--ease-out),opacity .6s;
}
.disc__list li.is-on{transform:translateY(0);opacity:1}
.disc__list li.is-out{transform:translateY(-100%);opacity:0}
.disc__label{color:var(--dim)}

.facades{display:grid;grid-template-columns:1.06fr .94fr 1.06fr;gap:clamp(12px,1.6vw,22px)}
.facade{container-type:inline-size;
  position:relative;border-radius:var(--r-m);overflow:hidden;background:var(--panel);
  aspect-ratio:3/4;isolation:isolate;
}
.facades .facade:nth-child(2){margin-top:clamp(0px,4vw,56px)}
.facade__media{position:absolute;inset:0}
.facade__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease-out),filter .6s;filter:saturate(.88) contrast(1.04) brightness(.82)}
.facade__media::after{content:'';position:absolute;inset:0;border:1px solid rgba(255,255,255,.08);border-radius:inherit;pointer-events:none;z-index:1}
.facade::after{
  content:'';position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(8,10,10,.15) 0%,rgba(8,10,10,0) 34%,rgba(8,10,10,.82) 100%);
  transition:opacity .5s;
}
.facade__label{
  position:absolute;inset:auto 0 0;z-index:2;display:flex;align-items:baseline;justify-content:space-between;
  gap:10px;padding:clamp(18px,2vw,26px);transition:opacity .4s,transform .5s var(--ease);
}
.facade__label h3{font-family:var(--f-display);font-size:clamp(16px,1.5vw,20px);font-weight:500;letter-spacing:-.02em}
.facade__label .mono{color:var(--ink-2)}
.facade__drawer{
  position:absolute;inset:0;z-index:3;
  clip-path:inset(0 0 0 0);transform:translateY(-101%);
  background:linear-gradient(170deg,rgba(15,20,19,.96),rgba(9,13,12,.97));
  backdrop-filter:blur(14px);
  transition:transform .62s var(--ease-out);
  display:flex;align-items:flex-start;
}
.facade__drawer-in{padding:clamp(20px,2.4vw,30px);display:flex;flex-direction:column;gap:12px;max-width:100%;height:100%;overflow:hidden}
@container (max-width:410px){
  .facade__drawer-in{padding:18px 18px 16px;gap:9px}
  .facade__drawer p{font-size:12.6px;line-height:1.55}
  .specs>div{padding:7px 0;font-size:11.6px}
  .specs dt{font-size:9.6px}
  .facade__cta{margin-top:10px;font-size:9.6px;letter-spacing:.06em}
}
@container (max-width:340px){
  .facade__drawer p{display:none}
  .specs>div{font-size:11px;padding:6px 0}
  .facade__drawer h3{font-size:15.5px}
  .facade__cta{font-size:9px;margin-top:8px}
}
@container (max-width:330px){
  .facade__drawer h3{font-size:16px}
  .facade__drawer p{font-size:12px}
  .specs dd{max-width:64%}
}
.facade__drawer h3{font-family:var(--f-display);font-size:clamp(18px,1.7vw,23px);font-weight:500;letter-spacing:-.02em}
.facade__drawer p{color:var(--ink-2);font-size:13.6px;line-height:1.6}
.specs{display:flex;flex-direction:column;gap:0;margin-top:auto;border-top:1px solid var(--line)}
.specs>div{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--line);font-size:12.5px}
.specs dt{color:var(--dim);font-family:var(--f-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase}
.specs dd{color:var(--ink);text-align:right;max-width:60%}
.facade__cta{margin-top:16px;display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--accent);padding-bottom:6px;border-bottom:1px solid rgba(47,200,184,.35);
  transition:color .25s var(--ease),border-color .25s var(--ease),gap .25s var(--ease)}
.facade__cta:hover{color:var(--accent-2);border-color:var(--accent-2);gap:12px}
.facade__cta:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.facade:hover .facade__drawer,.facade:focus-within .facade__drawer{transform:translateY(0)}
.facade:hover .facade__media img{transform:scale(1.06)}
.facade:hover .facade__label{opacity:0;transform:translateY(8px)}

/* ---------- 6.3 Окна ---------- */
.sec--windows{background:linear-gradient(180deg,var(--bg) 0%,#070B0A 42%,var(--bg) 100%)}
.wins{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(12px,1.8vw,24px);margin-bottom:clamp(44px,7vw,96px)}
.win{display:flex;flex-direction:column;gap:14px}
.win__media{
  position:relative;border-radius:var(--r-m);overflow:hidden;background:var(--panel);
  aspect-ratio:4/3;
}
.win__media img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease-out),filter .6s;filter:saturate(.95)}
.win__media::after{content:'';position:absolute;inset:0;border:1px solid var(--line);border-radius:inherit;pointer-events:none}
.win:hover .win__media img{transform:scale(1.05)}
.win__row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding-bottom:10px}
.win__row h3{font-family:var(--f-display);font-size:clamp(15px,1.3vw,18px);font-weight:500;letter-spacing:-.015em}
.win p{color:var(--dim);font-size:13.5px;line-height:1.55;max-width:32ch}

/* Веер RAL + порошковая покраска */
.ral{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(26px,4vw,64px);align-items:center;
  margin-top:clamp(34px,4.6vw,62px);padding-top:clamp(28px,3.6vw,48px);border-top:1px solid var(--line);
}
.ral__copy{display:flex;flex-direction:column}
.ral__title{font-family:var(--f-display);font-size:clamp(21px,2.6vw,36px);font-weight:500;line-height:1.06;letter-spacing:-.03em;margin:14px 0 16px}
.ral__title em{font-style:normal;color:var(--accent)}
.ral__text{color:var(--ink-2);font-size:14.6px;line-height:1.66;max-width:48ch}
.ral__chips{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 26px;padding:0}
.ral__chips li{
  font-family:var(--f-mono);font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;
  padding:7px 13px;border:1px solid var(--line-2);border-radius:100px;color:var(--ink-2);
}
.ral__pick{
  display:flex;align-items:center;gap:14px;max-width:330px;
  padding:11px 16px 11px 11px;border:1px solid var(--line-2);border-radius:var(--r-s);background:var(--panel);
}
.ral__pick-chip{
  flex:none;width:38px;height:38px;border-radius:9px;background-color:var(--c,#3B4249);
  background-size:cover;background-position:center;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14),0 6px 16px rgba(0,0,0,.45);
  transition:background-color .35s;
}
.ral__pick-txt b{display:block;font-family:var(--f-display);font-size:15px;font-weight:500;letter-spacing:.005em}
.ral__pick-txt span{display:block;font-size:9.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--dim);margin-top:4px}

.ral__visual{position:relative;display:flex;flex-direction:column;align-items:center;width:100%;max-width:640px;margin-inline:auto}
.fan-wrap{
  position:relative;width:100%;padding:clamp(18px,2.4vw,30px) 0 clamp(16px,2vw,24px);
  border:1px solid var(--line);border-radius:var(--r-m);
  background:
    radial-gradient(120% 90% at 50% 0%,rgba(47,200,184,.07),transparent 62%),
    linear-gradient(180deg,var(--panel),var(--bg-2));
  overflow:hidden;
}
.fan{
  --bh:clamp(180px,21vw,268px);--bw:clamp(38px,4.6vw,60px);--spread:8.4deg;
  position:relative;width:100%;height:calc(var(--bh) + 22px);
  display:flex;align-items:flex-end;justify-content:center;
}
.fan__pivot{
  position:absolute;left:50%;bottom:calc(clamp(16px,2vw,24px) - 7px);translate:-50% 0;
  width:26px;height:26px;border-radius:50%;z-index:12;pointer-events:none;
  background:radial-gradient(circle at 34% 30%,#E4EAE7,#8E9A96 55%,#4C5654 100%);
  box-shadow:0 0 0 4px rgba(8,10,10,.55),0 6px 16px rgba(0,0,0,.6);
}
.fan__blade{
  position:absolute;bottom:0;left:50%;margin-left:calc(var(--bw) / -2);
  width:var(--bw);height:var(--bh);padding:0;cursor:pointer;overflow:hidden;
  background-color:var(--c);border:1px solid rgba(255,255,255,.12);
  border-radius:11px 11px 4px 4px;
  box-shadow:0 16px 34px rgba(0,0,0,.5);
  transform-origin:50% 100%;
  transform:rotate(calc((var(--i) - 5.5) * var(--spread)));
  transition:transform .55s var(--ease-out),box-shadow .45s,filter .45s;
  will-change:transform;
}
.fan__blade::after{
  content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(104deg,rgba(255,255,255,.2) 0%,rgba(255,255,255,.03) 26%,rgba(0,0,0,.06) 52%,rgba(0,0,0,.26) 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.16);
}
.fan__blade--wood{
  background-image:url(assets/img/ral-wood.webp);
  background-size:cover;background-position:center 40%;background-color:#3A3128;
}
.fan:hover .fan__blade{filter:brightness(.82) saturate(.9)}
.fan__blade:hover,.fan__blade:focus-visible,.fan__blade.is-on{
  transform:rotate(0deg) translateY(-16px) scale(1.045);
  filter:none;z-index:9;box-shadow:0 30px 60px rgba(0,0,0,.62);
}
.fan__blade:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.fan__hint{margin-top:18px;text-align:center;font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}

.glazing{margin-top:clamp(20px,2.6vw,30px)}
.glazing h4{color:var(--dim);margin-bottom:12px}
.glazing__grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-s);overflow:hidden}
.glazing__item{background:var(--bg-2);padding:16px 18px;display:flex;flex-direction:column;gap:6px}
.glazing__item b{font-size:14px;font-weight:500}
.glazing__item span{font-size:12.5px;color:var(--dim);line-height:1.5}

/* ---------- 6.4 Двери ---------- */
.sec--doors{background:var(--bg-2);border-block:1px solid var(--line)}
.doors{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(24px,4vw,64px);align-items:center}
.doors__list{display:flex;flex-direction:column}
.doors__list li{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;
  padding:clamp(14px,1.8vw,22px) 0;border-bottom:1px solid var(--line);
  cursor:pointer;transition:padding-left .4s var(--ease),opacity .35s;
}
.doors__list li:first-child{border-top:1px solid var(--line)}
.doors__list b{font-family:var(--f-display);font-size:clamp(17px,2.1vw,27px);font-weight:500;letter-spacing:-.025em;transition:color .35s}
.doors__list i{font-style:normal;font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);text-align:right}
.doors__list li:hover{padding-left:8px}
.doors__list li.is-on b{color:var(--accent)}
.doors__list li.is-on i{color:var(--ink-2)}
.doors__right{width:100%;max-width:520px;justify-self:end;display:flex;flex-direction:column;gap:10px}
.doors__stack{position:relative;aspect-ratio:4/5;width:100%}
.doors__ph{
  position:absolute;inset:0;margin:0;border-radius:var(--r-m);overflow:hidden;
  border:1px solid var(--line);background:var(--panel);
  transform:translateY(16px) scale(.92);opacity:0;
  transition:transform .7s var(--ease-out),opacity .5s;
  box-shadow:0 40px 80px -40px #000;
}
.doors__ph.is-front{transform:none;opacity:1;z-index:3}
.doors__ph.is-back{transform:translate(-7%,-5%) rotate(-3.2deg) scale(.95);opacity:.62;z-index:2}
.doors__ph.is-back2{transform:translate(-12%,-9%) rotate(-6deg) scale(.9);opacity:.34;z-index:1}
.doors__ph img{width:100%;height:100%;object-fit:cover;object-position:62% 46%}
.doors__ph figcaption{
  position:absolute;left:14px;bottom:12px;background:rgba(8,10,10,.6);backdrop-filter:blur(8px);
  padding:5px 9px;border-radius:100px;font-size:9px;color:var(--ink-2);
}
.doors__hint{margin-bottom:12px;text-align:left;font-size:9.5px;color:var(--dim);order:-1}

/* ---------- 6.5 Этапы ---------- */
.sec--process{background:linear-gradient(180deg,var(--bg) 0%,#060908 60%,var(--bg) 100%)}
.proc{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(28px,4.5vw,72px);align-items:start}
.proc__media{
  position:sticky;top:100px;border-radius:var(--r-m);overflow:hidden;
  aspect-ratio:4/5;background:var(--panel);
  transform-style:preserve-3d;transition:transform .5s var(--ease-out);
  will-change:transform;
}
.proc__media img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) contrast(1.05)}
.proc__media::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,10,10,.1),rgba(8,10,10,.72));
}
.proc__badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:flex;flex-direction:column;gap:4px;
  background:rgba(8,10,10,.55);backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:var(--r-s);padding:12px 16px;
}
.proc__badge b{font-family:var(--f-display);font-size:15px;font-weight:500}
.proc__chain{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:6px;color:var(--ink-2);font-size:11px}
.proc__chain i{font-style:normal;color:var(--accent)}
.proc__chain span{color:var(--ink-2)}
.proc__steps{display:flex;flex-direction:column}
.proc__steps li{
  padding:clamp(18px,2.4vw,30px) 0;border-top:1px solid var(--line);
  display:grid;grid-template-columns:auto 1fr;gap:6px 18px;
  filter:blur(1.6px);opacity:.36;
  transition:filter .6s var(--ease),opacity .6s var(--ease);
}
.proc__steps li:last-child{border-bottom:1px solid var(--line)}
.proc__steps li.is-on{filter:none;opacity:1}
.proc__steps .mono{color:var(--accent);padding-top:6px}
.proc__steps h3{font-family:var(--f-display);font-size:clamp(19px,2.2vw,29px);font-weight:500;letter-spacing:-.025em;grid-column:2}
.proc__steps p{grid-column:2;color:var(--ink-2);font-size:14px;line-height:1.6;max-width:46ch;margin-top:8px}

/* ---------- 6.6 Производство ---------- */
.sec--prod{background:var(--bg)}
.prod{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,72px)}
.prod__stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;align-self:start}
.stat{background:var(--panel);padding:clamp(18px,2.2vw,28px);display:flex;flex-direction:column;gap:6px;min-height:170px}
.stat b{font-family:var(--f-display);font-size:clamp(26px,3.4vw,44px);font-weight:500;line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.stat b i{font-style:normal;font-size:.44em;color:var(--dim);letter-spacing:0}
.stat .mono{color:var(--accent)}
.stat p{color:var(--dim);font-size:12.5px;line-height:1.5;margin-top:auto}
.prod__visual{display:grid;gap:14px;align-self:end}
.prod__shot{position:relative;margin:0;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line)}
.prod__shot--wide{aspect-ratio:3/2}
.prod__detail{grid-column:1/-1;position:relative;margin:14px 0 0;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);aspect-ratio:21/8}
.prod__detail img{width:100%;height:100%;object-fit:cover;object-position:50% 42%;filter:saturate(.92)}
.prod__detail figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;background:linear-gradient(0deg,rgba(8,10,10,.92),transparent);font-size:9.5px;color:var(--ink-2)}
.prod__shot img{width:100%;height:100%;object-fit:cover;filter:saturate(.9)}
.prod__shot figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 16px 14px;
  background:linear-gradient(0deg,rgba(8,10,10,.97) 0%,rgba(8,10,10,.82) 45%,transparent 100%);
  font-size:9.5px;color:var(--ink);text-shadow:0 1px 10px rgba(4,8,7,.9);
}

/* ---------- 6.7 Заявка ---------- */
.sec--calc{position:relative;background:var(--bg-2);border-top:1px solid var(--line);overflow:hidden}
.calc__glow{
  position:absolute;width:70vw;height:70vw;max-width:900px;max-height:900px;right:-14vw;top:-20%;
  background:radial-gradient(circle,rgba(47,200,184,.13),transparent 62%);
  pointer-events:none;filter:blur(10px);
}
.calc{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4.5vw,80px);align-items:start}
.calc__lead{color:var(--ink-2);font-size:15px;line-height:1.65;max-width:40ch;margin-top:18px}
.calc__list{display:flex;flex-direction:column;gap:12px;margin-top:26px}
.calc__list li{display:flex;gap:12px;align-items:baseline;font-size:14.5px;color:var(--ink-2)}
.calc__list .mono{color:var(--accent)}
.calc__contacts{display:flex;flex-direction:column;gap:1px;margin-top:clamp(26px,4vw,44px);border-top:1px solid var(--line)}
.calc__contact{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);transition:color .3s,padding-left .4s var(--ease)}
.calc__contact b{font-size:15px;font-weight:500}
.calc__contact:hover{color:var(--accent);padding-left:6px}

.calc__card{
  position:relative;border:1px solid var(--line);border-radius:var(--r-l);
  background:linear-gradient(180deg,rgba(22,29,27,.9),rgba(12,17,16,.95));
  padding:clamp(20px,2.6vw,34px);backdrop-filter:blur(16px);
  box-shadow:0 50px 90px -60px #000;
}
.form{display:flex;flex-direction:column;gap:14px}
.form[hidden]{display:none!important}
.form__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:6px}
.form__head .mono{color:var(--accent)}
.form__time{color:var(--dim);font-size:9.5px}
.field{display:flex;flex-direction:column;gap:6px;position:relative}
.field label{font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}
.field label .mono{font-size:9px;letter-spacing:.06em;text-transform:none;color:rgba(124,138,132,.7)}
.field input,.field textarea,.field select{
  width:100%;background:rgba(255,255,255,.03);border:1px solid var(--line-2);
  border-radius:var(--r-s);padding:14px 15px;color:var(--ink);
  font-family:var(--f-text);font-size:15px;transition:border-color .3s,background .3s;
}
.field textarea{resize:vertical;min-height:76px;line-height:1.5}
.field select{appearance:none;cursor:pointer;padding-right:40px}
.field input::placeholder,.field textarea::placeholder{color:rgba(124,138,132,.72)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);background:rgba(47,200,184,.05)}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#E2725B}
.select{position:relative}
.select::after{
  content:'';position:absolute;right:16px;top:50%;width:7px;height:7px;translate:0 -70%;
  border-right:1.5px solid var(--ink-2);border-bottom:1.5px solid var(--ink-2);rotate:45deg;pointer-events:none;
}
.field__err{font-size:11.5px;color:#E2725B;min-height:0;display:block}
.field__err:empty{display:none}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
.check{display:flex;align-items:flex-start;gap:10px;font-size:12.5px;color:var(--ink-2);cursor:pointer;padding-top:2px}
.check input{
  appearance:none;width:18px;height:18px;flex:none;margin:1px 0 0;border:1px solid var(--line-2);
  border-radius:4px;background:rgba(255,255,255,.03);cursor:pointer;transition:background .25s,border-color .25s;position:relative;
}
.check input:checked{background:var(--accent);border-color:var(--accent)}
.check input:checked::after{
  content:'';position:absolute;left:5px;top:2px;width:5px;height:9px;
  border-right:2px solid #04100E;border-bottom:2px solid #04100E;rotate:45deg;
}
.form__alt{text-align:center;font-size:12.5px;color:var(--dim)}
.form__alt a{color:var(--ink-2);border-bottom:1px solid var(--line-2);padding-bottom:1px;transition:color .3s,border-color .3s}
.form__alt a:hover{color:var(--accent);border-color:var(--accent)}
.form__done{display:flex;flex-direction:column;align-items:flex-start;gap:14px;padding:clamp(10px,2vw,26px) 0}
.form__done[hidden]{display:none}
.form__check{
  width:46px;height:46px;border-radius:50%;background:var(--accent-soft);border:1px solid var(--accent);
  position:relative;flex:none;
}
.form__check::after{
  content:'';position:absolute;left:17px;top:11px;width:8px;height:15px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);rotate:45deg;
}
.form__done h3{font-family:var(--f-display);font-size:22px;font-weight:500}
.form__done p{color:var(--ink-2);font-size:14px;max-width:38ch;line-height:1.6}
#submitBtn[aria-busy="true"]{opacity:.7;pointer-events:none}

/* ---------- 6.8 Подвал ---------- */
.foot{border-top:1px solid var(--line);background:var(--bg);padding-top:clamp(40px,6vw,72px)}
.foot__in{display:flex;justify-content:space-between;gap:clamp(28px,5vw,80px);flex-wrap:wrap;padding-bottom:clamp(32px,5vw,56px)}
.foot__brand{display:flex;gap:16px;align-items:center}
.foot__logo{height:58px;width:auto;flex:none}
.foot__brand .mono{display:block;line-height:1.75;color:var(--ink-2);opacity:.85;white-space:nowrap}
.foot__cols{display:grid;grid-template-columns:repeat(3,auto);gap:clamp(24px,4vw,64px);padding-right:clamp(0px,13vw,190px)}
.foot__cols>div{display:flex;flex-direction:column;gap:9px}
.foot__cols .mono{margin-bottom:4px;color:var(--accent);opacity:.8}
.foot__cols a,.foot__cols p{font-size:13.5px;color:var(--ink-2);transition:color .3s;line-height:1.6}
.foot__cols a:hover{color:var(--accent)}
.foot__bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:18px;border-top:1px solid var(--line);font-size:9.5px;padding-right:230px}

/* =========================================================================
   7. АГЕНТ ПО ПРОДАЖАМ
   ========================================================================= */
.agent{position:fixed;right:clamp(12px,2vw,26px);bottom:clamp(12px,2vw,26px);z-index:100;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.agent__fab{
  display:inline-flex;align-items:center;gap:10px;padding:13px 20px 13px 16px;border-radius:100px;
  background:var(--accent);color:#04100E;font-weight:600;font-size:13.5px;
  box-shadow:0 18px 40px -16px rgba(47,200,184,.6);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.agent__fab:hover{transform:translateY(-2px);box-shadow:0 24px 50px -18px rgba(47,200,184,.75)}
.agent.is-open .agent__fab{opacity:0;pointer-events:none;transform:translateY(10px) scale(.94);transition:opacity .3s,transform .3s}
.agent{--lift:0px;bottom:calc(clamp(12px,2vw,26px) + var(--lift));transition:bottom .45s var(--ease)}
.agent__ico{width:19px;height:19px}
.agent__pulse{position:absolute;left:8px;top:8px;width:7px;height:7px;border-radius:50%;background:#04100E;opacity:.75}
.agent__fablabel{white-space:nowrap}
.agent__panel{
  width:min(374px,calc(100vw - 24px));height:min(560px,calc(100vh - 120px));
  display:flex;flex-direction:column;overflow:hidden;
  background:linear-gradient(180deg,#141B19,#0B100F);
  border:1px solid var(--line-2);border-radius:20px;
  box-shadow:0 40px 80px -30px #000;
  transform-origin:bottom right;
  animation:agentIn .4s var(--ease-out);
}
.agent__panel[hidden]{display:none}
@keyframes agentIn{from{opacity:0;transform:translateY(16px) scale(.96)}to{opacity:1;transform:none}}
.agent__head{display:flex;align-items:center;gap:11px;padding:14px 16px;border-bottom:1px solid var(--line);flex:none}
.agent__ava{width:34px;height:34px;flex:none;border-radius:50%;background:rgba(47,200,184,.12);display:grid;place-items:center;overflow:hidden}
.agent__ava img{width:23px;height:auto;display:block}
.agent__head div{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.agent__head b{font-size:13.5px;font-weight:600}
.agent__head .mono{font-size:9px;margin-top:3px}
.agent__close{margin-left:auto;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;color:var(--dim);transition:background .25s,color .25s}
.agent__close:hover{background:rgba(255,255,255,.06);color:var(--ink)}
.agent__close svg{width:15px;height:15px}
.agent__log{flex:1;overflow-y:auto;padding:16px 14px;display:flex;flex-direction:column;gap:10px;scrollbar-width:thin}
.msg{max-width:88%;padding:10px 13px;border-radius:14px;font-size:13px;line-height:1.5;animation:msgIn .3s var(--ease-out)}
@keyframes msgIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.msg--bot{background:rgba(255,255,255,.05);border:1px solid var(--line);border-bottom-left-radius:5px;align-self:flex-start}
.msg--me{background:var(--accent);color:#04100E;border-bottom-right-radius:5px;align-self:flex-end;font-weight:500}
.msg--lead{border-color:rgba(47,200,184,.45);background:rgba(47,200,184,.08)}
.msg--lead::after{
  content:'заявка передана менеджеру';display:block;margin-top:7px;
  font-family:var(--f-mono);font-size:8.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);
}
.msg--typing{display:flex;gap:4px;align-items:center}
.msg--typing i{width:5px;height:5px;border-radius:50%;background:var(--dim);animation:blink 1.2s infinite}
.msg--typing i:nth-child(2){animation-delay:.15s}
.msg--typing i:nth-child(3){animation-delay:.3s}
@keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}
.agent__quick{display:flex;gap:6px;flex-wrap:wrap;padding:0 14px 10px;flex:none}
.agent__quick button{
  font-size:11.5px;padding:7px 11px;border:1px solid var(--line-2);border-radius:100px;
  color:var(--ink-2);transition:border-color .25s,color .25s,background .25s;
}
.agent__quick button:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.agent__form{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--line);flex:none}
.agent__form input{
  flex:1;min-width:0;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:100px;padding:11px 15px;color:var(--ink);font-size:13px;font-family:var(--f-text);
}
.agent__form input:focus{outline:none;border-color:var(--accent)}
.agent__form button{width:40px;height:40px;flex:none;border-radius:50%;background:var(--accent);color:#04100E;display:grid;place-items:center}
.agent__form button svg{width:17px;height:17px}
.agent__note{padding:0 14px 10px;font-size:8.5px;line-height:1.4;color:rgba(124,138,132,.75);flex:none}

/* =========================================================================
   8. Анимация появления
   ========================================================================= */
.js [data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease-out),transform .9s var(--ease-out)}
[data-reveal].in{opacity:1;transform:none}
.facades [data-reveal]:nth-child(2){transition-delay:.09s}
.facades [data-reveal]:nth-child(3){transition-delay:.18s}
.wins [data-reveal]:nth-child(2){transition-delay:.08s}
.wins [data-reveal]:nth-child(3){transition-delay:.16s}
.hero__foot[data-reveal]{transition-delay:.4s}

/* =========================================================================
   9. Адаптив
   ========================================================================= */
@media (max-width:1180px){
  .nav__links{display:none}
  .nav__burger{display:block}
  .nav__side{margin-left:auto}
  .hero__strip-in{grid-template-columns:1fr 1fr}
  .hero__strip-in>div{border-left:0;border-top:1px solid var(--line)}
  .hero__strip-in>div:nth-child(-n+2){border-top:0}
  .hero__strip-in>div:nth-child(odd){border-right:1px solid var(--line)}
  .ral{grid-template-columns:1fr;gap:clamp(24px,4vw,40px)}
  .ral__visual{order:-1}
  .proc{grid-template-columns:1fr;gap:24px}
  .proc__media{position:relative;top:0;aspect-ratio:16/9;max-height:52vh}
  .prod{grid-template-columns:1fr}
  .calc{grid-template-columns:1fr}
  .calc__card{max-width:620px}
  .doors{grid-template-columns:1fr;gap:28px}
  .doors__stack{max-height:none;aspect-ratio:4/5;order:-1}
}
@media (max-width:900px){
  .facades{grid-template-columns:1fr 1fr}
  .facades .facade:nth-child(2){margin-top:0}
  .facades .facade:nth-child(3){grid-column:1/-1;aspect-ratio:16/10}
  .facade{aspect-ratio:3/4}
  .why{grid-template-columns:1fr}
  .why__card{min-height:0}
  .wins{grid-template-columns:1fr}
  .win__media{aspect-ratio:16/10}
  .prod__stats{grid-template-columns:1fr 1fr}
  .foot__cols{grid-template-columns:1fr 1fr}
  .hero__foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:760px){
  .nav__phone{display:none}
  .nav{padding-block:12px}
  .hero__title{max-width:12ch}
  .hero__inner{padding-top:104px}
  .hero__strip-in>div{padding:14px 18px}
  .sec{padding-block:56px}
  .sec__head--row{flex-direction:column;align-items:flex-start}
  .sec__note{max-width:100%}
  .disc{display:none}
  .proc__chain{display:none}
  .facades{grid-template-columns:1fr}
  .facades .facade{aspect-ratio:4/3}
  .facades .facade:nth-child(3){aspect-ratio:4/3}
  .facade__drawer{display:none}
  .facade__label{opacity:1!important;transform:none!important}
  .fan{--bh:190px;--bw:42px;--spread:7.6deg}
  .glazing__grid{grid-template-columns:1fr}
  .proc__media{aspect-ratio:4/3}
  .prod__detail{aspect-ratio:16/10}
  .proc__steps li{opacity:1;filter:none}
  .prod__stats{grid-template-columns:1fr}
  .stat{min-height:0}
  .foot__cols{grid-template-columns:1fr;gap:22px;padding-right:0}
  .foot__brand .mono{white-space:normal;max-width:24ch}
  .foot__bottom{flex-direction:column;gap:8px}
  .agent__fablabel{display:none}
  .agent__fab{padding:14px;border-radius:50%}
  .agent__pulse{display:none}
  .doors__list li{grid-template-columns:auto 1fr;gap:6px 12px}
  .doors__list i{grid-column:2;text-align:left}
  .calc__contact{flex-direction:column;gap:4px}
  .calc__contact b{font-size:14px}
}
@media (max-width:520px){
  .nav .btn--sm{display:none}
  .nav__logo img{height:44px}
  .nav.is-stuck .nav__logo img{height:36px}
  .nav{min-height:64px}
}
@media (max-width:760px){
  .hero__title{font-size:clamp(23px,7.8vw,42px)}
  .hero__eyebrow{font-size:10px;letter-spacing:.1em}
  .intro__mark{width:48px}
  .intro__sub{display:none}
  .intro__counter{margin-top:0}
}
@media (max-width:420px){
  .hero__title{font-size:clamp(22px,7.7vw,35px)}
  .intro__cards{height:170px}
  .intro__stage{--expand:5.2}
  .btn{padding:13px 18px;font-size:13px}
}

/* ---------- 10. Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-delay:0ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none}
  .hero__title .line>span{transform:none}
  .intro{display:none!important}
  .proc__steps li{filter:none;opacity:1}
}