/* Сварка у Алексея Колесника — тёмный индустриальный лендинг */
:root{
  --bg:#0d0f12; --bg2:#12151a; --panel:#161a20; --panel2:#1b2027;
  --line:#242a33; --line2:#2e3540;
  --txt:#e9ecf1; --mut:#98a2ae; --dim:#6f7a87;
  --acc:#ff8a1f; --acc2:#ffb020; --acc-dim:rgba(255,138,31,.12);
  --ok:#39c07a; --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--txt);
  font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0 0 .5em;line-height:1.15;letter-spacing:-.02em}
h1{font-size:clamp(28px,4.6vw,52px);font-weight:800}
h2{font-size:clamp(24px,3.2vw,38px);font-weight:800}
h3{font-size:19px;font-weight:700}
p{margin:0 0 1em}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.muted{color:var(--mut)}
.fine{color:var(--dim);font-size:13.5px;margin-top:14px}
.mt{margin-top:28px!important}

/* --- кнопки --- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:10px;border:1px solid transparent;cursor:pointer;
  font-weight:650;font-size:15px;transition:.18s;white-space:nowrap}
.btn-lg{padding:16px 28px;font-size:16.5px;border-radius:12px}
.btn-main{background:linear-gradient(180deg,var(--acc2),var(--acc));color:#1a1206;
  box-shadow:0 6px 22px rgba(255,138,31,.28)}
.btn-main:hover{filter:brightness(1.07);transform:translateY(-1px)}
.btn-outline{border-color:var(--line2);color:var(--txt);background:rgba(255,255,255,.03)}
.btn-outline:hover{border-color:var(--acc);color:var(--acc)}
.btn-ghost{border-color:transparent;color:var(--txt);background:rgba(255,255,255,.05)}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-tg{background:#2aabee;color:#fff}
.btn-max{background:#8b5cf6;color:#fff}
.btn-tg:hover,.btn-max:hover{filter:brightness(1.1)}

/* --- шапка --- */
.hdr{position:sticky;top:0;z-index:60;background:rgba(13,15,18,.86);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:26px;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(145deg,var(--acc2),#e2620a);color:#231303;font-weight:900;font-size:21px;
  box-shadow:0 4px 16px rgba(255,138,31,.3)}
.brand-txt b{display:block;font-size:15px;letter-spacing:.06em;font-weight:800}
.brand-txt i{font-style:normal;color:var(--mut);font-size:12.5px}
.nav{display:flex;gap:22px;margin-left:auto;font-size:15px}
.nav a{color:var(--mut);transition:.15s}
.nav a:hover{color:var(--acc2)}
.hdr-cta{display:flex;gap:10px;flex:0 0 auto}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line2);border-radius:10px;
  background:transparent;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.burger span{width:20px;height:2px;background:var(--txt);transition:.2s}
.burger.on span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.on span:nth-child(2){opacity:0}
.burger.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* --- герой --- */
.hero{position:relative;padding:74px 0 0;overflow:hidden}
.hero-bg{position:absolute;inset:0;
  background:url('assets/hero.jpg') center/cover no-repeat;
  filter:saturate(.9) brightness(.62) contrast(1.08);z-index:0}
.hero::after{content:"";position:absolute;inset:0;z-index:1;
  background:radial-gradient(1000px 460px at 12% 0%,rgba(255,138,31,.24),transparent 60%),
             linear-gradient(180deg,rgba(13,15,18,.35),rgba(13,15,18,.88) 62%,var(--bg))}
.hero-in{position:relative;z-index:2;padding-bottom:56px}
.hero-txt{max-width:760px}
.eyebrow{color:var(--acc2);font-size:13px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;margin-bottom:14px}
.lead{font-size:clamp(16px,1.9vw,19.5px);color:#cbd3dd;max-width:660px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 30px}
.badge{padding:9px 16px;border-radius:100px;border:1px solid var(--line2);
  background:rgba(255,255,255,.045);font-size:14px;color:#dbe2ea}
.badge::before{content:"✓";color:var(--ok);font-weight:800;margin-right:7px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-note{margin-top:20px;color:var(--acc2);font-size:14.5px;font-weight:600}
.hero-strip{position:relative;z-index:2;background:rgba(18,21,26,.92);border-top:1px solid var(--line);
  border-bottom:1px solid var(--line)}
.hero-strip-in{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:22px 20px}
.hero-strip-in>div{display:flex;flex-direction:column;gap:3px}
.hero-strip-in b{font-size:19px;color:var(--acc2)}
.hero-strip-in span{font-size:13.5px;color:var(--mut)}

/* --- секции --- */
.sec{padding:78px 0}
.sec-alt{background:var(--bg2)}
.sec-sub{color:var(--mut);max-width:720px;font-size:16.5px;margin-bottom:34px}

/* --- карточки услуг --- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:.2s}
.card:hover{border-color:#3a4351;transform:translateY(-3px);background:var(--panel2)}
.card h3{color:#fff}
.card h3::before{content:"";display:block;width:34px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--acc2),var(--acc));margin-bottom:14px}
.card p{color:var(--mut);margin:0;font-size:15px}
.card-acc{border-color:rgba(255,138,31,.42);background:linear-gradient(180deg,var(--acc-dim),var(--panel))}

/* --- прайс --- */
.price-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:20px}
.price-box{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}
.price-box h3{font-size:17px;color:var(--acc2);letter-spacing:.02em}
.plist{list-style:none;margin:0;padding:0}
.plist li{display:flex;align-items:baseline;gap:10px;padding:11px 0;border-bottom:1px dashed var(--line)}
.plist li:last-child{border-bottom:0}
.plist span{color:#cdd5df;font-size:15.2px}
.plist li::after{content:"";flex:1;order:1;border-bottom:1px dotted #333c48}
.plist b{order:2;color:#fff;font-size:15.5px;white-space:nowrap}
.promo{margin-top:24px;padding:20px;border-radius:12px;border:1px solid rgba(255,138,31,.4);
  background:linear-gradient(135deg,rgba(255,138,31,.16),rgba(255,138,31,.04))}
.promo b{display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:#231303;background:var(--acc2);padding:3px 10px;border-radius:100px}
.promo p{margin:12px 0 0;font-size:15.5px;color:#f0e3d3}

/* --- галерея --- */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gal figure{margin:0;position:relative;border-radius:12px;overflow:hidden;cursor:zoom-in;
  border:1px solid var(--line);background:#0a0c0f}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:.35s}
.gal figure:hover img{transform:scale(1.06)}
.gal figcaption{position:absolute;left:0;right:0;bottom:0;padding:22px 14px 11px;font-size:13.5px;
  color:#fff;background:linear-gradient(180deg,transparent,rgba(0,0,0,.82))}
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(6,7,9,.95);display:grid;place-items:center;padding:24px}
.lightbox[hidden]{display:none}
.lightbox img{max-width:min(1200px,94vw);max-height:88vh;border-radius:10px;object-fit:contain}
.lb-close{position:absolute;top:18px;right:22px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line2);background:rgba(255,255,255,.06);color:#fff;font-size:26px;cursor:pointer;line-height:1}

/* --- шаги --- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.step{position:relative;padding:24px 20px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
.step span{font-size:26px;font-weight:900;color:rgba(255,138,31,.5);display:block;margin-bottom:8px}
.step h3{font-size:16.5px}
.step p{margin:0;color:var(--mut);font-size:14.4px}

/* --- почему --- */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.why>div{padding:24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line)}
.why h3{font-size:16.5px;color:#fff}
.why p{margin:0;color:var(--mut);font-size:14.6px}

/* --- форма --- */
.calc-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start}
.msg-row{display:flex;flex-wrap:wrap;gap:10px}
.form{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px}
.form label{display:block;margin-bottom:14px;font-size:14px;color:var(--mut)}
.form input[type=text],.form input[type=tel],.form textarea{width:100%;margin-top:7px;
  background:#0f1216;border:1px solid var(--line2);border-radius:10px;color:var(--txt);
  padding:13px 14px;font:inherit;font-size:15.5px;transition:.16s}
.form input:focus,.form textarea:focus{outline:0;border-color:var(--acc);box-shadow:0 0 0 3px var(--acc-dim)}
.form textarea{resize:vertical}
.form .chk{display:flex;gap:10px;align-items:flex-start;font-size:14.4px;color:#cdd5df;margin:6px 0 18px}
.form .chk input{width:18px;height:18px;margin-top:2px;accent-color:var(--acc)}
.form .btn{width:100%}
.form-note{color:var(--dim);font-size:13px;margin:12px 0 0;text-align:center}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
.form-msg{margin:12px 0 0;font-size:14.5px;text-align:center;min-height:20px}
.form-msg.ok{color:var(--ok)}
.form-msg.err{color:#ff6b6b}

/* --- faq --- */
.faq{display:grid;gap:10px;max-width:900px}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:18px 22px;font-weight:650;font-size:16.5px;list-style:none;
  display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--acc2);font-size:24px;font-weight:400;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{color:var(--acc2)}
.faq p{margin:0;padding:0 22px 20px;color:var(--mut);font-size:15.2px}

/* --- контакты --- */
.contacts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cbox{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.cbox h3{font-size:16px;color:var(--acc2)}
.cbox p{margin:0;font-size:15.6px}
.cbox a{color:#fff;border-bottom:1px solid var(--line2)}
.cbox a:hover{color:var(--acc2);border-color:var(--acc2)}

/* --- подвал --- */
.ftr{background:#0a0c0f;border-top:1px solid var(--line);padding:38px 0 96px}
.ftr-in{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.ftr-brand{display:flex;align-items:center;gap:12px}
.ftr-brand b{display:block;font-size:14.5px;letter-spacing:.06em}
.ftr-brand i{font-style:normal;color:var(--mut);font-size:12.5px}
.ftr-actions{margin-left:auto;display:flex;gap:10px;flex-wrap:wrap}
.copy{flex:1 0 100%;color:var(--dim);font-size:13px;margin:10px 0 0;border-top:1px solid var(--line);padding-top:16px}

/* --- мобильная панель --- */
.mobar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:rgba(13,15,18,.96);backdrop-filter:blur(10px);border-top:1px solid var(--line);
  padding:8px 10px calc(8px + env(safe-area-inset-bottom))}
.mobar a{flex:1;text-align:center;padding:12px 6px;border-radius:10px;font-weight:650;font-size:14.5px;
  background:rgba(255,255,255,.06)}
.mobar a:nth-child(1){background:linear-gradient(180deg,var(--acc2),var(--acc));color:#1a1206}
.mobar{display:none}

/* --- адаптив --- */
@media (max-width:1040px){
  .nav{display:none;position:absolute;top:74px;left:0;right:0;flex-direction:column;gap:0;
    background:#0f1216;border-bottom:1px solid var(--line);padding:8px 20px 16px}
  .nav.on{display:flex}
  .nav a{padding:13px 0;border-bottom:1px solid var(--line);font-size:16px}
  .burger{display:flex}
  .hdr-cta .btn-ghost{display:none}
  .hero-strip-in{grid-template-columns:repeat(2,1fr);gap:16px}
  .cards,.why,.contacts{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .price-grid,.calc-wrap{grid-template-columns:1fr}
  .gal{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .sec{padding:56px 0}
  .hdr-in{height:64px}
  .nav{top:64px}
  .hdr-cta .btn-main{padding:10px 14px;font-size:14px}
  .hero{padding:44px 0 0}
  .cards,.why,.contacts,.steps,.gal{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .ftr-actions{width:100%;margin-left:0}
  .ftr-actions .btn{flex:1}
  .mobar{display:flex;gap:8px}
  .ftr{padding-bottom:104px}
  .price-box,.form{padding:20px 18px}
}

/* --- отзывы --- */
.rev-top{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-bottom:26px}
.rev-score{display:flex;align-items:center;gap:14px}
.rev-score b{font-size:46px;line-height:1;color:#fff;letter-spacing:-.02em}
.rev-score .stars{color:#ffc247;font-size:19px;letter-spacing:2px;display:block}
.rev-score i{font-style:normal;color:var(--mut);font-size:13.5px}
.rev-note{flex:1;min-width:250px;color:var(--mut);font-size:14.6px;margin:0}
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rev{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 20px 16px;display:flex;flex-direction:column;gap:12px}
.rev.hidden{display:none}
.rev-h{display:flex;align-items:center;gap:12px}
.rev-av{width:46px;height:46px;border-radius:50%;object-fit:cover;flex:0 0 auto;border:1px solid var(--line2)}
.rev-h b{display:block;font-size:15.5px;color:#fff}
.rev-h span{color:var(--mut);font-size:13px}
.rev-stars{margin-left:auto;color:#ffc247;font-size:14px;letter-spacing:1px;white-space:nowrap}
.rev p{margin:0;color:#d7dee7;font-size:14.9px}
.rev time{color:var(--dim);font-size:12.5px;margin-top:auto}
.rev-ph{display:flex;gap:8px;flex-wrap:wrap}
.rev-ph img{width:64px;height:64px;object-fit:cover;border-radius:8px;cursor:zoom-in;border:1px solid var(--line)}
.rev-actions{margin-top:22px;text-align:center}

/* --- модальное окно --- */
.modal{position:fixed;inset:0;z-index:250;background:rgba(6,7,9,.86);display:grid;place-items:center;
  padding:20px;overflow-y:auto}
.modal[hidden]{display:none}
.modal-card{position:relative;width:100%;max-width:560px;background:var(--panel);
  border:1px solid var(--line2);border-radius:18px;padding:26px}
.modal-card h3{font-size:22px}
.modal-sub{color:var(--mut);font-size:14.6px}
.modal-close{position:absolute;top:14px;right:16px;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line2);background:transparent;color:var(--txt);font-size:22px;cursor:pointer;line-height:1}
.modal .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rate{display:flex;align-items:center;gap:4px;margin-bottom:14px}
.rate button{background:none;border:0;font-size:28px;line-height:1;color:#39424f;cursor:pointer;padding:0 2px;transition:.15s}
.rate button.on{color:#ffc247}
.rate span{margin-left:10px;color:var(--mut);font-size:13.5px}
.modal .file input{margin-top:7px;font-size:13.5px;color:var(--mut)}
@media (max-width:1040px){.rev-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){
  .rev-grid{grid-template-columns:1fr}
  .modal .row2{grid-template-columns:1fr}
  .rev-score b{font-size:36px}
  .rev-top{gap:16px}
}

/* --- ссылки на страницы услуг --- */
.card-link{display:inline-block;margin-top:14px;color:var(--acc2);font-size:14.5px;font-weight:600;
  border-bottom:1px dashed rgba(255,176,32,.45)}
.card-link:hover{color:#fff;border-color:#fff}
.sec-links{background:var(--bg2)}
.sec-links .rel{margin-top:6px}

/* Было — стало */
.ba-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin-top:18px}
.ba{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.ba-row{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line)}
.ba-i{position:relative;overflow:hidden;aspect-ratio:4/3}
.ba-i img{width:100%;height:100%;object-fit:cover;display:block;cursor:zoom-in;transition:transform .3s}
.ba-i:hover img{transform:scale(1.04)}
.ba-tag{position:absolute;top:9px;left:9px;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:#c0392b;color:#fff;box-shadow:0 2px 8px rgba(0,0,0,.35)}
.ba-tag.posle{background:#2e7d32}
.ba figcaption{padding:12px 14px 14px;font-size:14px;line-height:1.5;color:var(--mut)}
@media(max-width:520px){.ba-row{grid-template-columns:1fr}}