:root{
  --primary:#d10024;
  --primary-dark:#a1001c;
  --secondary:#1a2533;
  --ink:#28313b;
  --muted:#68717b;
  --light:#f4f6f8;
  --white:#fff;
  --line:#dfe4e8;
  --font-title:'Montserrat',sans-serif;
  --font-body:'Lato',sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--light);color:var(--ink);font-family:var(--font-body);line-height:1.6}
button,input{font:inherit}
.topbar{position:sticky;top:0;z-index:1000;background:var(--white);box-shadow:0 2px 5px rgba(0,0,0,.1)}
.topbar-inner{width:min(1200px,100%);height:80px;margin:auto;padding:8px 20px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand-gesture{position:relative;display:flex;align-items:center;padding:0;border:0;background:transparent;cursor:default}
.brand-gesture img{display:block;width:160px;max-height:62px;object-fit:contain}
.back-site-button{display:inline-flex;align-items:center;gap:11px;padding:7px 14px 7px 8px;border-radius:8px;background:var(--secondary);color:var(--white);text-decoration:none;box-shadow:0 4px 12px rgba(26,37,51,.16);transition:transform .2s ease,background .2s ease}
.back-site-button:hover{background:#26374a;transform:translateY(-2px)}
.back-site-button .back-arrow{width:32px;height:32px;display:grid;place-items:center;border-radius:6px;background:var(--primary);font-size:19px;font-weight:700}
.back-site-button span:last-child{display:flex;flex-direction:column;line-height:1.05}
.back-site-button small{font-size:9px;letter-spacing:.08em;text-transform:uppercase;opacity:.76}
.back-site-button strong{margin-top:3px;font-family:var(--font-title);font-size:13px}
.hero{position:relative;min-height:310px;padding:66px max(24px,calc((100% - 1132px)/2));display:flex;align-items:center;background:linear-gradient(118deg,var(--secondary),#26394d);color:var(--white);overflow:hidden}
.hero::before{content:'';position:absolute;inset:0 auto 0 0;width:7px;background:var(--primary)}
.hero::after{content:'';position:absolute;width:360px;height:360px;right:-130px;bottom:-240px;border:58px solid rgba(255,255,255,.045);border-radius:50%}
.hero>div{position:relative;z-index:1}
.hero span,.catalog-head small,.admin-head small,.login>small{font-size:11px;letter-spacing:.17em;font-weight:800}
.hero span{color:var(--primary)}
.hero h1{margin:15px 0 14px;color:var(--white);font-family:var(--font-title);font-size:clamp(46px,7vw,78px);letter-spacing:-.055em;line-height:1.05}
.hero p{max-width:none;margin:0;color:#e3e8ed;font-size:16px;line-height:1.55;white-space:nowrap}
.catalog{max-width:1180px;margin:auto;padding:60px 24px 90px}
.catalog-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:28px}
.catalog-metrics{display:flex;align-items:baseline;gap:28px;flex-wrap:wrap}
.catalog-head h2{margin:8px 0 0;color:var(--secondary);font-family:var(--font-title);font-size:30px;letter-spacing:-.035em}
.total-offer-meters{color:var(--primary);font-family:var(--font-title);font-size:30px;letter-spacing:-.035em;line-height:1.2;white-space:nowrap}
.catalog-head label{display:flex;flex-direction:column;gap:7px;font-size:12px}
.catalog-head input{width:min(360px,72vw);padding:10px 0;border:0;border-bottom:2px solid var(--secondary);outline:0;background:transparent;font-size:16px}
.catalog-head input:focus{border-color:var(--primary)}
.offers{border-top:1px solid var(--secondary)}
.offer{border-bottom:1px solid var(--line);background:var(--white)}
.offer.open{box-shadow:inset 5px 0 var(--primary)}
.offer-row{width:100%;padding:22px 24px;display:flex;align-items:center;justify-content:space-between;gap:22px;border:0;background:transparent;color:var(--ink);text-align:left;cursor:pointer}
.offer-row:hover{background:#fafbfc}
.offer-row>div:first-child>strong{display:block;color:var(--secondary);font-family:var(--font-title);font-size:17px}
.offer-row small{display:block;margin-top:7px;color:var(--muted)}
.price{display:flex;align-items:center;justify-content:flex-end;gap:12px;white-space:nowrap}
.price-values{display:flex;align-items:stretch;gap:8px}
.price-before,.price-now{display:flex;flex-direction:column;justify-content:center;border-radius:7px}
.price-before{padding:6px 10px;background:#ef4444;color:#101010}
.price-now{padding:6px 11px;background:#168a45;color:var(--white)}
.price small{margin:0 0 1px;color:#7b838a;font-size:9px;font-weight:800;letter-spacing:.1em;line-height:1;text-transform:uppercase}
.price-before small{color:#101010}
.price-now small{color:var(--white)}
.price del{color:#101010;font-size:15px;font-weight:700;text-decoration-color:#101010;text-decoration-thickness:2px}
.price b{color:var(--white);font-size:23px;line-height:1.2}
.price em{margin-left:3px;font-size:10px;font-style:normal}
.price i{width:24px;color:var(--secondary);font-size:27px;font-style:normal;text-align:center}
.details{margin:0 24px 24px;padding-bottom:10px;border-top:2px solid var(--secondary)}
.detail-head,.detail-line,.detail-total{display:grid;grid-template-columns:minmax(0,1fr) 180px;gap:16px;align-items:center}
.detail-head{padding:11px 14px;background:#edf0f3;font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.detail-line{padding:13px 14px;border-bottom:1px solid #e7ebee}
.detail-line span{overflow-wrap:anywhere}
.detail-line strong,.detail-head span:last-child,.detail-total strong{text-align:right}
.detail-total{padding:15px 14px;background:rgba(209,0,36,.06)}
.details p{margin:14px;color:var(--muted);font-size:11px}
footer{padding:32px max(24px,calc((100% - 1132px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px;background:var(--secondary);color:var(--white)}
footer>span{font-family:var(--font-title);font-size:14px;letter-spacing:.06em}
.footer-back{display:inline-flex;align-items:center;gap:8px;padding:9px 13px;border:1px solid rgba(255,255,255,.28);border-radius:7px;color:var(--white);text-decoration:none;transition:background .2s ease}
.footer-back:hover{background:rgba(255,255,255,.1)}
.footer-back b{color:#ff6b81;font-size:18px}
.admin-body{min-height:100vh;background:#eef1ed}
.login{max-width:430px;margin:70px auto;padding:32px;border-radius:14px;background:var(--white);box-shadow:0 16px 45px rgba(26,37,51,.11)}
.login img{width:260px;max-width:100%;margin-bottom:28px}
.login h1{margin:8px 0 24px;color:var(--secondary);font-family:var(--font-title);font-size:36px}
.login label{display:block;margin:14px 0;font-size:12px}
.login input,.price-edit input{width:100%;margin-top:6px;padding:12px;border:1px solid #ccd3ce;border-radius:8px;font-size:15px}
.login button,.save{padding:13px 20px;border:0;border-radius:8px;background:var(--primary);color:var(--white);font-weight:700;cursor:pointer}
.login button:hover,.save:hover{background:var(--primary-dark)}
.error{color:#a62d2d}
.admin-shell{max-width:1180px;margin:auto;padding:36px 24px}
.admin-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}
.admin-head h1{margin:7px 0;color:var(--secondary);font-family:var(--font-title);font-size:40px}
.admin-head nav{display:flex;gap:20px}
.admin-head a{color:var(--primary)}
.admin-grid{display:grid;grid-template-columns:.8fr 1.5fr;gap:18px}
.admin-grid>section{padding:28px;border-radius:14px;background:var(--white)}
.admin-grid p{color:var(--muted);font-size:13px;line-height:1.55}
.drop{display:block;margin:18px 0;padding:28px;border:2px dashed #b7c1bb;border-radius:10px;text-align:center}
.drop input{display:block;max-width:100%;margin:15px auto 0}
.price-header,.price-edit{display:grid;grid-template-columns:minmax(180px,1fr) 125px 125px;gap:9px;align-items:center}
.price-header{padding:9px 0;border-bottom:2px solid var(--secondary);font-size:12px}
.price-edit{padding:10px 0;border-bottom:1px solid #e7ebe8}
.price-edit small{display:block;margin-top:4px;color:var(--muted)}
.price-edit input.invalid{border-color:var(--primary);background:rgba(209,0,36,.05);box-shadow:0 0 0 2px rgba(209,0,36,.11)}
.save{margin-top:20px}
#status{color:var(--primary);font-size:13px;font-weight:700}
@media(max-width:760px){
  .topbar-inner{height:74px;padding:7px 14px}
  .brand-gesture img{width:128px;max-height:54px}
  .back-site-button{padding-right:10px}
  .back-site-button .back-arrow{width:30px;height:30px}
  .hero{min-height:250px;padding-top:48px;padding-bottom:48px}
  .hero h1{font-size:clamp(40px,12vw,58px)}
  .hero p{font-size:16px;white-space:normal}
  .catalog-head{align-items:start;flex-direction:column}
  .catalog-metrics{gap:6px 22px}
  .total-offer-meters{font-size:27px}
  .offer-row{align-items:flex-start;padding:18px 15px}
  .price{position:relative;align-items:flex-end;gap:3px;padding-right:22px}
  .price-values{align-items:flex-end;flex-direction:column;gap:4px}
  .price-before,.price-now{align-items:flex-end;padding:4px 7px}
  .price i{position:absolute;right:-5px;top:0}
  .details{margin:0 12px 18px}
  .detail-head,.detail-line,.detail-total{grid-template-columns:minmax(0,1fr) 110px;font-size:13px}
  .admin-grid{grid-template-columns:1fr}
  .admin-head{align-items:flex-start;gap:15px}
  .admin-head nav{flex-direction:column;gap:7px}
  footer{align-items:flex-start;flex-direction:column}
}
@media(max-width:500px){
  .back-site-button small{display:none}
  .back-site-button strong{margin:0;font-size:12px}
  .catalog{padding:44px 12px}
  .catalog-head h2{font-size:27px}
  .login{margin:20px 12px}
  .admin-shell{padding:22px 12px}
  .price-header,.price-edit{grid-template-columns:minmax(120px,1fr) 92px 92px;font-size:11px}
}