/* =========================================================
   ТЕРМОПЕЛЕТ — стилі лендингу
   Палітра: Daylight Industrial (світла, оранж + сталевий синій)
   ========================================================= */

/* ── ТОКЕНИ ───────────────────────────────────────────────── */
:root{
  --bg:#F2F0EA;
  --bg-soft:#EAE7DE;
  --surface:#FFFFFF;
  --surface-2:#F7F5EF;
  --ember:#C1440E;
  --ember-deep:#9A350A;
  --ember-soft:rgba(193,68,14,0.12);
  --pellet:#3D5A73;
  --steel:#2C4357;
  --text:#1C1B18;
  --text-muted:#6B6A63;
  --line:rgba(28,27,24,0.10);
  --line-strong:rgba(28,27,24,0.18);
  --maxw:1180px;
  --font-display:'Big Shoulders Display',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
}

/* ── БАЗА ─────────────────────────────────────────────────── */
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;}
ul{margin:0;padding:0;}
h1,h2,h3,p{margin:0;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

.eyebrow{
  font-family:var(--font-mono);
  font-size:0.78rem;letter-spacing:0.16em;text-transform:uppercase;
  color:var(--ember);display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--ember);}

.section-head, h2.section-head{max-width:640px;margin-bottom:48px;}
.section-head h2, h2.section-head{
  font-family:var(--font-display);font-weight:800;text-transform:uppercase;
  letter-spacing:0.01em;font-size:clamp(1.9rem,3.4vw,2.8rem);
  line-height:1.05;margin-top:14px;color:var(--text);
}
.section-head p{color:var(--text-muted);margin-top:16px;font-size:1.02rem;max-width:560px;}

section{padding:88px 0;}
.section-alt{background:var(--bg-soft);}

/* ── КНОПКИ ───────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:999px;
  font-family:var(--font-body);font-weight:600;font-size:0.95rem;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--ember),var(--ember-deep));
  color:#fff;box-shadow:0 10px 26px -10px rgba(255,90,31,0.6);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px -8px rgba(255,90,31,0.75);}
.btn-outline{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-outline:hover{border-color:var(--ember);color:var(--ember);}
.btn-block{width:100%;justify-content:center;}

.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,
textarea:focus-visible,summary:focus-visible,button:focus-visible{
  outline:2px solid var(--ember);outline-offset:3px;
}

/* ── REVEAL ───────────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in-view{opacity:1;transform:none;}
body.js-ready .reveal{opacity:1;transform:none;transition:none;}
body.js-ready .reveal.in-view{transition:opacity .6s ease,transform .6s ease;}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ── HEADER / NAV ─────────────────────────────────────────── */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(242,240,234,0.88);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;
  position:relative;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-display);font-weight:800;font-size:1.35rem;
  text-decoration:none;letter-spacing:0.01em;flex-shrink:0;
}
.logo span{color:var(--ember);}
  .logo .logo-suffix{color:var(--ember);}
.nav-links{display:flex;gap:30px;font-size:0.95rem;color:var(--text-muted);}
.nav-links a{text-decoration:none;transition:color .2s;}
.nav-links a:hover{color:var(--text);}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-toggle{
  display:none;background:none;border:1px solid var(--line-strong);
  border-radius:8px;width:40px;height:40px;color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;
}
.nav-toggle svg{width:18px;height:18px;}

/* ── HERO ─────────────────────────────────────────────────── */
.hero{position:relative;overflow:hidden;padding:100px 0 86px;}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr 0.95fr;gap:56px;align-items:center;
}
.hero h1{
  font-family:var(--font-display);font-weight:800;text-transform:uppercase;
  font-size:clamp(2.2rem,4.5vw,4rem);line-height:1.03;letter-spacing:0;margin-top:18px;
}
.hero h1 em{color:var(--ember);font-style:normal;}
.hero p.lead{color:var(--text-muted);font-size:1.12rem;margin-top:20px;max-width:520px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px;}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;margin-top:52px;}
.stat-num{font-family:var(--font-mono);font-weight:600;font-size:1.55rem;color:var(--pellet);}
.stat-label{font-size:0.84rem;color:var(--text-muted);margin-top:4px;max-width:140px;}

/* ── КАЛЬКУЛЯТОР ──────────────────────────────────────────── */
.calc-card{
  background:var(--surface);border:1px solid var(--line-strong);
  border-top:3px solid var(--ember);border-radius:20px;padding:30px;
  position:relative;box-shadow:0 24px 48px -32px rgba(28,27,24,0.22);
}
.calc-card h3{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:1.4rem;margin-top:8px;
}
.calc-field{margin-top:24px;}
.calc-field label{
  display:block;font-family:var(--font-mono);font-size:0.74rem;
  text-transform:uppercase;letter-spacing:0.1em;color:var(--text-muted);margin-bottom:10px;
}
input[type="range"]{
  width:100%;-webkit-appearance:none;appearance:none;
  height:4px;background:var(--line-strong);border-radius:4px;outline:none;
}
input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none;width:18px;height:18px;border-radius:50%;
  background:var(--ember);cursor:pointer;box-shadow:0 0 0 4px rgba(255,90,31,0.2);
}
input[type="range"]::-moz-range-thumb{
  width:18px;height:18px;border-radius:50%;background:var(--ember);
  border:none;cursor:pointer;box-shadow:0 0 0 4px rgba(255,90,31,0.2);
}
.calc-current{font-family:var(--font-mono);color:var(--text);margin-top:10px;font-size:1.05rem;}
.gauge-wrap{position:relative;margin:26px 0 6px;display:flex;justify-content:center;}
.gauge{width:220px;height:130px;}
.gauge-track{fill:none;stroke:var(--line-strong);stroke-width:14;}
.gauge-fill{fill:none;stroke:url(#gaugeGrad);stroke-width:14;stroke-linecap:round;transition:stroke-dashoffset .4s ease;}
.gauge-readout{position:absolute;bottom:6px;left:0;right:0;text-align:center;}
.gauge-percent{display:block;font-family:var(--font-mono);font-weight:600;font-size:1.9rem;color:var(--ember);}
.gauge-label{display:block;font-size:0.78rem;color:var(--text-muted);margin-top:2px;}
.calc-result{text-align:center;font-size:0.95rem;color:var(--text-muted);margin-top:8px;}
.calc-result strong{color:var(--text);font-family:var(--font-mono);}
.calc-disclaimer{font-size:0.76rem;color:var(--text-muted);opacity:0.75;margin-top:14px;line-height:1.5;}
.calc-card .btn{margin-top:20px;}

/* ── CAPABILITY STRIP ─────────────────────────────────────── */
.capability-strip{padding:0 0 8px;}
.capability-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
}
.capability-item{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:4/3;}
.capability-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease;}
.capability-item:hover img{transform:scale(1.04);}
.capability-caption{
  position:absolute;left:0;right:0;bottom:0;
  background:linear-gradient(180deg,transparent,rgba(28,27,24,0.78));
  color:#fff;padding:30px 14px 12px;
  font-family:var(--font-mono);font-size:0.7rem;text-transform:uppercase;
  letter-spacing:0.04em;line-height:1.4;
}

/* ── ABOUT ────────────────────────────────────────────────── */
.about-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:60px;align-items:start;}
.check-list{margin-top:28px;display:flex;flex-direction:column;gap:16px;}
.check-item{display:flex;gap:12px;align-items:flex-start;font-size:0.98rem;color:var(--text);}
.check-item svg{flex-shrink:0;width:20px;height:20px;color:var(--ember);margin-top:1px;}
.about-stat{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:36px;text-align:center;
}
.about-stat .big{
  font-family:var(--font-display);font-weight:800;font-size:4rem;color:var(--pellet);line-height:1;
}
.about-stat .cap{font-size:0.95rem;color:var(--text-muted);margin-top:10px;}
.about-stat hr{border:none;border-top:1px solid var(--line);margin:26px 0;}
.about-stat .sub{display:flex;justify-content:space-between;font-size:0.84rem;color:var(--text-muted);}
.about-stat .sub strong{display:block;color:var(--text);font-family:var(--font-mono);font-size:1.1rem;margin-bottom:4px;}

/* ── CATALOG ──────────────────────────────────────────────── */
.catalog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;}
.catalog-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .2s,box-shadow .2s;}
.catalog-card:hover{border-color:var(--line-strong);box-shadow:0 16px 32px -26px rgba(28,27,24,0.2);}
.catalog-card details{padding:24px;}
.catalog-card summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:flex-start;}
.catalog-card summary::-webkit-details-marker{display:none;}
.catalog-num{font-family:var(--font-mono);font-size:0.82rem;color:var(--pellet);}
.catalog-title{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:1.22rem;margin-top:8px;line-height:1.1;
}
.catalog-spec{
  display:inline-block;font-family:var(--font-mono);font-size:0.7rem;
  background:var(--ember-soft);color:var(--ember);padding:4px 10px;border-radius:999px;margin-top:12px;
}
.catalog-desc{color:var(--text-muted);font-size:0.92rem;margin-top:12px;line-height:1.55;}
.catalog-toggle{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;transition:transform .25s ease;
  color:var(--text-muted);margin-top:2px;
}
.catalog-card details[open] .catalog-toggle{transform:rotate(45deg);border-color:var(--ember);color:var(--ember);}
.catalog-card details[open] .catalog-title{color:var(--ember);}
.catalog-more{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:0.88rem;color:var(--text-muted);}
.catalog-more ul{padding-left:18px;margin:0;display:flex;flex-direction:column;gap:6px;}
.catalog-more p{margin-bottom:8px;color:var(--text);font-weight:500;font-size:0.85rem;}
.catalog-photo{
  aspect-ratio:16/10;border-radius:0;border:none;border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;background:var(--surface-2);
}
.catalog-photo img{width:100%;height:100%;object-fit:cover;display:block;cursor:pointer;transition:transform .35s ease;}
.catalog-photo img:hover{transform:scale(1.04);}

/* ── GALLERY ──────────────────────────────────────────────── */
.gallery-filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px;}
.gallery-chip{
  font-family:var(--font-mono);font-size:0.76rem;text-transform:uppercase;letter-spacing:0.04em;
  padding:9px 16px;border-radius:999px;border:1px solid var(--line-strong);background:var(--surface);
  color:var(--text-muted);cursor:pointer;transition:border-color .2s,color .2s,background .2s;
}
.gallery-chip:hover{border-color:var(--ember);color:var(--ember);}
.gallery-chip.active{background:var(--ember);border-color:var(--ember);color:#fff;}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;}
.gallery-item{background:none;border:none;padding:0;text-align:left;display:block;width:100%;font-family:inherit;cursor:pointer;}
.gallery-thumb{
  display:block;position:relative;aspect-ratio:4/3;border-radius:12px;overflow:hidden;
  border:1px solid var(--line);background:var(--surface-2);
}
.gallery-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease;}
.gallery-item:hover .gallery-thumb img{transform:scale(1.05);}
.gallery-tag{
  position:absolute;bottom:10px;left:10px;z-index:2;
  background:rgba(242,240,234,0.92);color:var(--steel);
  font-family:var(--font-mono);font-size:0.6rem;text-transform:uppercase;letter-spacing:0.04em;
  padding:4px 9px;border-radius:999px;
  white-space:nowrap;max-width:calc(100% - 20px);overflow:hidden;text-overflow:ellipsis;
}
.gallery-caption{
  display:block;margin-top:9px;padding:0 2px;
  font-size:0.86rem;font-weight:500;color:var(--text);line-height:1.35;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.gallery-empty{color:var(--text-muted);font-size:0.95rem;padding:30px 0;text-align:center;}

/* ── LIGHTBOX ─────────────────────────────────────────────── */
.lightbox{
  position:fixed;inset:0;background:rgba(20,19,16,0.94);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:300;padding:24px;
}
.lightbox.open{opacity:1;pointer-events:auto;}
.lightbox-img{max-width:88vw;max-height:78vh;object-fit:contain;border-radius:8px;}
.lightbox-caption{
  position:absolute;left:0;right:0;bottom:34px;text-align:center;
  color:#F2F0EA;font-family:var(--font-mono);font-size:0.85rem;padding:0 64px;
}
.lightbox-close{
  position:absolute;top:20px;right:20px;width:42px;height:42px;border-radius:50%;
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.2);color:#F2F0EA;
  font-size:1.4rem;cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.lightbox-close:hover{background:rgba(255,255,255,0.18);}
.lightbox-nav{
  position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.2);color:#F2F0EA;
  font-size:1.6rem;cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.lightbox-nav:hover{background:rgba(255,255,255,0.18);}
.lightbox-nav.prev{left:18px;}
.lightbox-nav.next{right:18px;}
.lightbox-nav[hidden],.lightbox-close[hidden]{display:none;}

/* ── PROCESS ──────────────────────────────────────────────── */
.process-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;position:relative;}
.process-grid::before{
  content:"";position:absolute;top:20px;left:8%;right:8%;height:1px;background:var(--line-strong);z-index:0;
}
.process-step{position:relative;z-index:1;text-align:center;}
.process-dot{
  width:40px;height:40px;border-radius:50%;background:var(--surface-2);
  border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);color:var(--ember);margin:0 auto 16px;flex-shrink:0;
}
.process-label{font-size:0.92rem;color:var(--text-muted);line-height:1.45;}

/* ── WHY US ───────────────────────────────────────────────── */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px;}
.why-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:26px;}
.why-icon{
  width:42px;height:42px;border-radius:10px;background:var(--ember-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.why-icon svg{width:22px;height:22px;color:var(--ember);}
.why-card h4{font-family:var(--font-display);font-weight:700;text-transform:uppercase;font-size:1.08rem;}
.why-card p{color:var(--text-muted);font-size:0.9rem;margin-top:8px;line-height:1.5;}

/* ── FORM ─────────────────────────────────────────────────── */
.form-panel{
  background:var(--surface);border:1px solid var(--line-strong);border-radius:20px;
  padding:44px;max-width:780px;margin:0 auto;position:relative;overflow:hidden;
}
.form-panel::before{
  content:"";position:absolute;top:-160px;right:-120px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(255,90,31,0.28),transparent 70%);pointer-events:none;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:30px;position:relative;z-index:1;}
.form-grid .full{grid-column:1/-1;}
.field label{
  display:block;font-family:var(--font-mono);font-size:0.72rem;text-transform:uppercase;
  letter-spacing:0.1em;color:var(--text-muted);margin-bottom:8px;
}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-soft);border:1px solid var(--line-strong);border-radius:10px;
  padding:13px 14px;color:var(--text);font-family:var(--font-body);font-size:0.95rem;
  transition:border-color .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--ember);outline:none;}
.field textarea{resize:vertical;min-height:96px;}
.form-panel form{margin-top:0;}
.form-foot{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;margin-top:28px;position:relative;z-index:1;flex-wrap:wrap;
}
.form-note{font-size:0.8rem;color:var(--text-muted);max-width:300px;}
.form-success{
  display:none;margin-top:20px;padding:16px 18px;border-radius:12px;
  background:rgba(255,90,31,0.12);border:1px solid var(--ember-soft);
  color:var(--text);font-size:0.92rem;position:relative;z-index:1;
}
.form-success.show{display:block;}

/* ── BANNER ───────────────────────────────────────────────── */
.banner{background:var(--pellet);color:var(--bg);padding:56px 0;text-align:center;}
.banner p{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:clamp(1.3rem,2.6vw,2rem);line-height:1.25;max-width:820px;margin:0 auto;
}

/* ── FOOTER ───────────────────────────────────────────────── */
.site-footer{padding:64px 0 36px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-grid h5{
  font-family:var(--font-mono);font-size:0.74rem;text-transform:uppercase;
  letter-spacing:0.1em;color:var(--text-muted);margin-bottom:16px;
}
.footer-grid p,.footer-grid a{
  font-size:0.92rem;color:var(--text-muted);text-decoration:none;display:block;margin-bottom:8px;
}
.footer-grid a:hover{color:var(--ember);}
.footer-tagline{color:var(--text-muted);font-size:0.92rem;margin-top:14px;max-width:280px;}
.social-row{display:flex;gap:12px;margin-top:6px;}
.social-row a{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;margin:0;
}
.social-row svg{width:16px;height:16px;}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  font-size:0.82rem;color:var(--text-muted);
}

/* ── PHOTO PLACEHOLDER ────────────────────────────────────── */
.photo-placeholder{
  background:repeating-linear-gradient(45deg,var(--surface-2) 0 10px,var(--line) 10px 20px);
  border:1px dashed var(--line-strong);border-radius:10px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:8px;color:var(--text-muted);text-align:center;padding:14px;
}
.photo-placeholder svg{width:24px;height:24px;opacity:0.55;}
.photo-placeholder span{
  font-family:var(--font-mono);font-size:0.66rem;text-transform:uppercase;
  letter-spacing:0.05em;max-width:170px;line-height:1.4;
}
.photo-placeholder.small{aspect-ratio:4/3;}

/* ── 3D RENDER BADGE ──────────────────────────────────────── */
.render-badge{
  position:absolute;top:10px;right:10px;z-index:2;
  background:rgba(28,27,24,0.72);color:#fff;
  font-family:var(--font-mono);font-size:0.6rem;text-transform:uppercase;
  letter-spacing:0.05em;padding:4px 9px;border-radius:999px;
  pointer-events:none;white-space:nowrap;
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════ */

/* ── 980px: hero переходить в 1 колонку ─────────────────── */
@media(max-width:980px){
  .hero-inner{grid-template-columns:1fr;gap:44px;}
  .hero p.lead{max-width:100%;}
}

/* ── 880px: планшет ──────────────────────────────────────── */
@media(max-width:880px){
  /* spacing */
  section{padding:64px 0;}
  .hero{padding:72px 0 60px;}
  .site-footer{padding:52px 0 28px;}
  .section-head,.h2.section-head{margin-bottom:36px;}
  .form-panel{padding:32px;}

  /* nav hamburger */
  .nav-links{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;
    background:var(--bg-soft);border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .3s ease;
    z-index:50;
  }
  .nav-links a{padding:16px 24px;border-top:1px solid var(--line);}
  .site-header.nav-open .nav-links{max-height:320px;}
  .nav-toggle{display:flex;}
  .nav-right .btn-primary{padding:10px 18px;font-size:0.85rem;}

  /* about */
  .about-grid{grid-template-columns:1fr;gap:40px;}
  .about-stat{padding:28px;}

  /* capability strip: 2 колонки */
  .capability-grid{grid-template-columns:repeat(2,1fr);}

  /* process: вертикальний список */
  .process-grid{grid-template-columns:1fr;gap:0;}
  .process-grid::before{display:none;}
  .process-step{
    display:flex;gap:18px;align-items:flex-start;text-align:left;
    padding:20px 0;border-top:1px solid var(--line);
  }
  .process-step:first-child{border-top:none;}
  .process-dot{margin:0;}

  /* footer */
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

/* ── 680px: великий телефон ──────────────────────────────── */
@media(max-width:680px){
  section{padding:52px 0;}
  .hero{padding:60px 0 48px;}
  .banner{padding:44px 0;}
  .form-panel{padding:24px 20px;}
  .about-stat{padding:22px;}

  /* hero text */
  .hero h1{font-size:clamp(1.9rem,7vw,2.8rem);}
  .hero p.lead{font-size:1rem;}
  .hero-stats{gap:20px;margin-top:36px;}

  /* form */
  .form-grid{grid-template-columns:1fr;}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn-primary{width:100%;justify-content:center;}

  /* gallery: 2 колонки */
  .gallery-grid{grid-template-columns:repeat(2,1fr);gap:12px;}
}

/* ── 480px: малий телефон ────────────────────────────────── */
@media(max-width:480px){
  section{padding:44px 0;}
  .hero{padding:48px 0 40px;}
  .wrap{padding:0 16px;}
  .banner{padding:36px 0;}
  .site-footer{padding:44px 0 24px;}

  /* hero */
  .hero h1{font-size:clamp(1.7rem,8.5vw,2.2rem);}
  .hero-ctas{flex-direction:column;}
  .hero-ctas .btn{width:100%;justify-content:center;}
  .hero-stats{flex-direction:column;gap:16px;}
  .hero-stats > div{display:flex;align-items:center;gap:16px;}
  .stat-num{font-size:1.3rem;}
  .stat-label{margin-top:0;max-width:none;}

  /* calculator */
  .calc-card{padding:20px;}
  .calc-card h3{font-size:1.2rem;}
  .gauge{width:180px;height:106px;}

  /* capability: 1 колонка */
  .capability-grid{grid-template-columns:1fr 1fr;}

  /* catalog: 1 колонка */
  .catalog-grid{grid-template-columns:1fr;}

  /* gallery: 1 колонка */
  .gallery-grid{grid-template-columns:1fr;gap:14px;}

  /* gallery filters: менший шрифт */
  .gallery-chip{font-size:0.7rem;padding:7px 13px;}

  /* lightbox */
  .lightbox-nav{width:38px;height:38px;font-size:1.3rem;}
  .lightbox-caption{font-size:0.76rem;padding:0 44px;bottom:18px;}

  /* section-head margin */
  .section-head,.h2.section-head{margin-bottom:28px;}

  /* form */
  .form-panel{padding:18px 14px;border-radius:14px;}
  .form-grid{gap:14px;}

  /* footer */
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* ── 360px: найменший телефон ────────────────────────────── */
@media(max-width:360px){
  .hero h1{font-size:1.6rem;}
  .logo{font-size:1.15rem;}
  .nav-right .btn-primary{display:none;}
  .capability-grid{grid-template-columns:1fr;}
  .banner p{font-size:1.1rem;}
}