*{box-sizing:border-box}
:root{
  --blue:#2357d9;
  --blue-hover:#1c46b0;
  --blue-soft:#edf3ff;
  --ink:#1f2937;
  --muted:#667085;
  --line:#d8e0ec;
  --panel:#f5f7fb;
  --card:#ffffff;
  --soft:#eef2f8;
  --soft-2:#f8fafc;
  --ok:#067647;
  --danger:#b42318;
  --shadow:0 18px 42px rgba(15, 23, 42, .08);
}
html,body{margin:0;font-family:"DM Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#eef3f8;color:var(--ink)}
body{min-width:320px}
.hero{background:linear-gradient(180deg,#e8f2ff 0%,#f4f8ff 100%);border-bottom:1px solid rgba(0,0,0,.05);padding:40px 14px 30px}
.hero-inner{max-width:1100px;margin:0 auto;text-align:center}
.hero h1{margin:0;color:var(--blue);font-size:clamp(34px,6vw,58px);line-height:1.02}
.hero p{margin:12px auto 0;max-width:760px;color:#445065;font-size:16px;line-height:1.55}
.page-wrap{padding:20px 10px 48px;background:linear-gradient(#eef4fb,#edf2f7)}
.form-shell{max-width:1080px;margin:0 auto;padding:0}
.card{max-width:980px;margin:0 auto;background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:var(--shadow)}
.intro-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:16px}
.intro-gallery-card{position:relative;aspect-ratio:4/5;border:1px solid #d7e2ef;border-radius:22px;box-shadow:0 10px 28px rgba(15,23,42,.08);overflow:hidden;background:#e8eef6}
.intro-gallery-card img{display:block;width:100%;height:100%;object-fit:cover;border-radius:22px;transform:scale(1.04)}
.title-box{background:linear-gradient(180deg,#f8fbff 0%,#eef3fa 100%);border:1px solid #dde6f2;border-radius:18px;padding:18px 18px 16px;margin-bottom:16px}
.title-box h2{margin:0 0 10px;color:#243247;font-size:clamp(28px,5vw,44px);line-height:1.05}
.title-box p{margin:0;color:#526175;font-size:15px;line-height:1.55}
.title-lead{margin:0 2px 12px;color:#526175;font-size:15px;line-height:1.55;font-weight:500;padding:0;border:0;border-radius:0;background:transparent;box-shadow:none}
.title-phone{margin:12px 2px 0;color:#526175;font-size:15px;line-height:1.55;font-weight:500}
.title-phone a{color:var(--blue);font-weight:700;text-decoration:none}
.title-phone a:hover{text-decoration:underline}
.helper-strip{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.helper-chip{padding:10px 12px;border-radius:999px;background:#fff;border:1px solid #d8e2ef;color:#445065;font-size:13px;font-weight:600}
.controls{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:14px;align-items:end;margin-bottom:10px}
.controls-left label,.controls-right label{display:block;font-size:15px;font-weight:700;color:#344054;margin-bottom:8px}
.controls-left label span,.field label span{color:#d92d20}
.search-wrap{position:relative}
#searchInput,#categoryFilter,.field input,.field textarea,.qty-input{width:100%;border:1px solid #c5d0de;border-radius:12px;background:#fff;color:var(--ink);padding:12px 14px;font-size:15px;transition:border-color .15s ease,box-shadow .15s ease}
#categoryFilter{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#667085 50%),linear-gradient(135deg,#667085 50%,transparent 50%);background-position:calc(100% - 18px) calc(50% - 3px),calc(100% - 12px) calc(50% - 3px);background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:32px}
#searchInput:focus,#categoryFilter:focus,.field input:focus,.field textarea:focus,.qty-input:focus{outline:none;border-color:#a8bdf8;box-shadow:0 0 0 4px rgba(35,87,217,.12)}
.results-info{min-height:22px;margin:2px 0 10px;color:#667085;font-size:14px;font-weight:600}
.product-group{margin-top:10px}
.product-group h4{margin:18px 0 12px;color:#273449;font-size:28px;line-height:1.15}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.product-card{display:flex;flex-direction:column;border:1px solid #d6dfeb;border-radius:20px;background:var(--card);overflow:hidden;box-shadow:0 8px 24px rgba(15,23,42,.04);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.product-card.selected{border-color:#b0c5ff;box-shadow:0 14px 30px rgba(35,87,217,.12)}
.product-card.details-open{border-color:#c7d6f7}
.product-card.flash-focus{box-shadow:0 0 0 4px rgba(35,87,217,.16),0 18px 40px rgba(15,23,42,.12)}
.product-media{position:relative;background:#edf2f7;border-bottom:1px solid #e6edf5}
.product-image-wrap{aspect-ratio:1/1;width:100%;overflow:hidden;background:#eef2f8}
.product-image{display:block;width:100%;height:100%;object-fit:cover}
.badge{position:absolute;top:12px;right:12px;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.95);color:var(--blue);font-size:12px;font-weight:700;border:1px solid rgba(255,255,255,.98);backdrop-filter:blur(4px)}
.product-card:not(.selected) .badge{color:#fff;background:rgba(17,24,39,.35);border-color:rgba(255,255,255,.18)}
.product-content{display:flex;flex-direction:column;gap:0;padding:14px 14px 16px}
.product-name{margin:0;color:#273449;font-size:24px;line-height:1.1}
.product-price{margin:8px 0 0;color:var(--blue);font-size:16px;font-weight:800}
.product-stock{margin:8px 0 0;color:#0f5132;font-size:14px;font-weight:700}
.product-stock strong{font-weight:800}
.product-teaser{margin:8px 0 0;color:#5c6679;font-size:14px;line-height:1.5}
.product-detail-link{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:14px 0 0;padding:12px 14px;border:none;border-radius:14px;background:var(--blue-soft);color:#18377d;font-size:14px;font-weight:800;cursor:pointer;text-align:left}
.product-detail-link:hover{background:#e4edff}
.product-card.details-open .detail-link-icon{transform:rotate(180deg)}
.detail-link-icon{transition:transform .15s ease}
.product-details{margin-top:12px;border:1px solid #dee6f2;border-radius:18px;background:#fbfcfe;padding:14px}
.product-meta-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.meta-card{padding:12px;border-radius:14px;background:#fff;border:1px solid #e3eaf4;display:flex;flex-direction:column;gap:4px;min-height:84px}
.meta-card strong{font-size:13px;color:#344054}
.meta-card span{font-size:14px;color:#5a6578;line-height:1.45}
.product-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.product-badge{display:inline-flex;padding:7px 10px;border-radius:999px;background:#fff;border:1px solid #dbe4f0;color:#425065;font-size:12px;font-weight:700}
.product-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.product-tab{border:1px solid #d5dfec;background:#fff;color:#425065;border-radius:999px;padding:10px 13px;font-size:13px;font-weight:800;cursor:pointer}
.product-tab.is-active{background:var(--blue);border-color:var(--blue);color:#fff}
.product-panels{margin-top:14px}
.product-panel{padding:4px 2px 2px}
.product-panel p{margin:0 0 10px;color:#475467;font-size:14px;line-height:1.65}
.product-panel ul{margin:0;padding-left:18px;color:#475467}
.product-panel li{margin-bottom:8px;font-size:14px;line-height:1.6}
.panel-note{margin-top:12px;padding:10px 12px;border-radius:12px;background:#fff;border:1px solid #e3eaf4}
.qty-wrap{margin-top:14px}
.qty-label{display:block;margin-bottom:7px;font-size:13px;font-weight:700;color:#475467}
.qty-controls{display:grid;grid-template-columns:46px 1fr 46px;gap:8px;align-items:center}
.qty-btn{border:1px solid #c7d1de;background:#eef2f8;color:#344054;border-radius:12px;height:46px;font-size:24px;line-height:1;cursor:pointer;transition:background .15s ease,border-color .15s ease}
.qty-btn:hover{background:#e4ebf7;border-color:#b8c6da}
.qty-input{text-align:center;font-weight:700;height:46px}
.delivery-block,.summary-block{margin-top:22px;border-top:1px solid #d9e2ee;padding-top:18px}
.delivery-block h3,.summary-block h3{margin:0;color:#273449;font-size:24px;line-height:1.2}
.summary-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
.secondary-btn{border:1px solid #c7d5eb;background:#fff;color:#28438d;border-radius:999px;padding:10px 14px;font-weight:700;font-size:13px;cursor:pointer}
.secondary-btn:hover{background:#f3f7ff}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field-full{grid-column:1/-1}
.field label{font-size:14px;font-weight:700;color:#475467}
.field textarea{resize:vertical;min-height:120px}
.summary-empty{background:#fff;border:1px dashed #cfd8e6;border-radius:14px;padding:12px 14px;font-size:14px;color:#667085}
.summary-list{display:grid;gap:10px}
.summary-item{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:12px 14px;border:1px solid #dae2ee;border-radius:14px;background:#fff}
.summary-item small{display:block;margin-top:4px;color:#667085;font-size:13px}
.summary-item-right{display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.summary-jump{border:none;background:transparent;color:var(--blue);font-weight:800;font-size:13px;cursor:pointer;padding:0}
.summary-total{margin-top:12px;background:#edf3ff;border:1px solid #d3e0ff;border-radius:16px;padding:14px;display:grid;gap:8px}
.summary-total>div{display:flex;justify-content:space-between;font-size:15px;color:#334155}
.actions{margin-top:18px}
#submitBtn{width:100%;border:0;background:var(--blue);color:#fff;font-weight:800;font-size:16px;border-radius:16px;padding:16px 18px;cursor:pointer;transition:background .15s ease,transform .15s ease}
#submitBtn:hover{background:var(--blue-hover)}
#submitBtn:disabled{opacity:.7;cursor:wait;transform:none}
.message{min-height:20px;margin:12px 0 0;font-size:14px;font-weight:700}
.message.error{color:var(--danger)}
.message.success{color:var(--ok)}

@media (max-width:900px){
  .page-wrap{padding:14px 8px 32px}
  .card{padding:16px;border-radius:18px}
  .controls{grid-template-columns:1fr}
  .controls-right{max-width:100%}
  .product-group h4{font-size:24px}
}

@media (max-width:700px){
  .cards{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
  .field-full{grid-column:auto}
  .summary-head{flex-direction:column;align-items:stretch}
  .intro-gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
}

@media (max-width:560px){
  .hero{padding:30px 12px 24px}
  .hero p{font-size:15px}
  .card{padding:12px;border-radius:16px}
  .intro-gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .intro-gallery-card{aspect-ratio:0.88;border-radius:18px}
  .intro-gallery-card img{border-radius:18px;transform:scale(1.06)}
  .title-box{padding:14px;border-radius:16px}
  .title-box h2{font-size:clamp(24px,8vw,30px)}
  .helper-strip{gap:8px}
  .helper-chip{width:100%;justify-content:center;text-align:center}
  .product-content{padding:12px 12px 14px}
  .product-name{font-size:22px}
  .product-meta-grid{grid-template-columns:1fr}
  .product-tabs{display:grid;grid-template-columns:1fr;gap:8px}
  .product-tab{width:100%;text-align:left}
  .qty-controls{grid-template-columns:52px 1fr 52px}
  .qty-btn,.qty-input{height:48px}
  .summary-item{flex-direction:column;align-items:stretch}
  .summary-item-right{align-items:flex-start}
}