:root{
  --red:#c82424;
  --red-dark:#a01d1d;
  --gray-dark:#5c5c5c;
  --gray-nav:#797979;
  --gray-bg:#f2f2f2;
  --border:#dcdcdc;
  --text:#333;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:"Roboto",Arial,Helvetica,sans-serif;color:var(--text);background:#fff;display:flex;flex-direction:column;min-height:100vh}
a{color:var(--red)}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px;width:100%}
main.wrap{flex:1 0 auto}
.site-header,.site-footer{flex:0 0 auto}
img{max-width:100%}

.site-header{border-bottom:1px solid var(--border)}
.header-top{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;flex-wrap:wrap;gap:16px}
.logo{display:block}
.logo img{height:52px;display:block}
.header-contact{display:flex;gap:32px;flex-wrap:wrap}
.contact-item{display:flex;align-items:center;gap:10px}
.contact-icon{color:var(--red);font-size:22px;line-height:1}
.contact-label{font-size:12px;font-weight:normal;text-transform:uppercase;color:var(--text);letter-spacing:.02em}
.contact-value{font-size:15px;color:var(--red);font-weight:normal;text-decoration:none;display:block}
.contact-value:hover{text-decoration:underline}
.header-bar{background:var(--gray-nav);color:#fff;padding:10px 0;font-size:15px}

.stepper{display:flex;list-style:none;padding:0;margin:28px 0;gap:4px;flex-wrap:wrap}
.stepper li{flex:1;min-width:110px;text-align:center;font-size:13px;color:#999;position:relative;padding-top:38px}
.stepper li span{position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:28px;border-radius:50%;background:#ddd;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:bold;font-size:13px}
.stepper li.active{color:var(--red);font-weight:bold}
.stepper li.active span{background:var(--red)}
.stepper li.done span{background:#4caf50}
.stepper li.done{color:#4caf50;cursor:pointer}
.stepper li.done:hover{color:var(--red)}
.stepper li.done:hover span{background:var(--red)}

.step-panel h2{color:var(--red);font-size:20px;border-bottom:2px solid var(--gray-bg);padding-bottom:10px}
.substep-title{font-size:16px;margin:22px 0 6px;color:var(--text)}
.hint{color:#777;font-size:13px}

.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px;margin:16px 0}
.opt-card{border:2px solid var(--border);border-radius:6px;padding:12px;cursor:pointer;text-align:center;background:#fff;transition:.15s}
.opt-card:hover{border-color:var(--red)}
.opt-card.selected{border-color:var(--red);background:#fff5f5}
.opt-card .swatch{position:relative;width:100%;border-radius:4px;margin-bottom:8px;border:1px solid var(--border);overflow:hidden;background:var(--gray-bg)}
.opt-card .swatch img{width:100%;height:auto;display:block}
.zoom-btn{position:absolute;bottom:6px;right:6px;width:26px;height:26px;border-radius:50%;border:none;background:rgba(255,255,255,.9);color:var(--gray-dark);cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;box-shadow:0 1px 3px rgba(0,0,0,.25)}
.zoom-btn:hover{background:#fff;color:var(--red)}
.swatch-empty{width:100%;height:140px;background:var(--gray-bg)}
.opt-card .name{font-weight:bold;font-size:13px}
.opt-card .sub{font-size:12px;color:#888}

.dim-row{border:1px solid var(--border);border-radius:6px;padding:16px;margin-bottom:16px;background:#fafafa}
.dim-row-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.dim-row label{font-size:12px;color:#666;display:flex;flex-direction:column;gap:4px}
.dim-row input,.dim-row select{padding:8px;border:1px solid var(--border);border-radius:4px;font-size:14px}
.fixed-value{padding:8px;border:1px solid var(--border);border-radius:4px;font-size:14px;background:var(--gray-bg);color:#777}
.dim-row .edges-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:12px}
.qty-stepper{display:flex;align-items:center;gap:6px}
.qty-stepper button{width:30px;height:34px;border:1px solid var(--border);background:#fff;border-radius:4px;cursor:pointer;font-size:16px}
.qty-stepper input{width:60px;text-align:center}
.row-remove{float:right;background:none;border:none;color:var(--red);cursor:pointer;font-size:13px}
.row-error{color:var(--red);font-size:12px;margin-top:8px}

.edge-picker{position:relative}
.edge-picker-btn{width:100%;display:flex;align-items:center;gap:8px;padding:6px 8px;border:1px solid var(--border);border-radius:4px;background:#fff;cursor:pointer;font-size:13px;text-align:left}
.edge-picker-thumb{width:26px;height:26px;border-radius:3px;overflow:hidden;flex:0 0 auto;background:var(--gray-bg);display:block}
.edge-picker-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.edge-picker-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.edge-picker-caret{color:#999;font-size:11px}
.edge-picker-panel{display:none;position:absolute;top:calc(100% + 4px);left:0;right:0;background:#fff;border:1px solid var(--border);border-radius:6px;box-shadow:0 4px 14px rgba(0,0,0,.12);z-index:20;max-height:220px;overflow-y:auto}
.edge-picker.open .edge-picker-panel{display:block}
.edge-option{display:flex;align-items:center;gap:8px;padding:8px 10px;cursor:pointer;font-size:13px}
.edge-option:hover{background:var(--gray-bg)}
.edge-option-thumb{width:26px;height:26px;border-radius:3px;overflow:hidden;flex:0 0 auto;background:var(--gray-bg)}
.edge-option-thumb img{width:100%;height:100%;object-fit:cover;display:block}

.btn{padding:10px 22px;border-radius:4px;border:2px solid var(--red);background:var(--red);color:#fff;cursor:pointer;font-size:14px}
.btn:hover{background:var(--red-dark);border-color:var(--red-dark)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-outline{background:#fff;color:var(--red)}
.btn-outline:hover{background:#fff5f5}
.btn-large{padding:14px 30px;font-size:16px}
.wizard-nav{display:flex;justify-content:space-between;margin:30px 0 60px}

.recap-summary{background:var(--gray-bg);padding:14px 18px;border-radius:6px;margin-bottom:16px;font-size:14px}
.recap-summary div{padding:4px 0}
.table-scroll{width:100%;overflow-x:auto;margin-bottom:16px}
.recap-table{width:100%;min-width:640px;border-collapse:collapse;margin-bottom:0}
.recap-table th,.recap-table td{border:1px solid var(--border);padding:10px;text-align:left;font-size:14px;white-space:nowrap}
.recap-table th{background:var(--gray-bg)}
.info-btn{background:var(--red);color:#fff;border:none;border-radius:50%;width:20px;height:20px;cursor:pointer;font-size:12px;line-height:1}
.recap-totals{text-align:right;font-size:16px;margin-bottom:24px}
.recap-totals .grand{font-size:20px;font-weight:bold;color:var(--red)}

.order-form{max-width:500px;display:flex;flex-direction:column;gap:14px}
.order-form label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:#666}
.order-form input,.order-form textarea{padding:10px;border:1px solid var(--border);border-radius:4px;font-size:14px;font-family:inherit}

.alert-box{background:#fdecea;border:1px solid var(--red);color:var(--red-dark);padding:12px 16px;border-radius:6px;margin-bottom:16px;font-size:14px}
.alert-box ul{margin:4px 0 0;padding-left:20px}

.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:100}
.modal-box{background:#fff;border-radius:8px;padding:24px;max-width:420px;width:90%}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.modal-head button{background:none;border:none;font-size:22px;cursor:pointer;color:#999}
.modal-table{width:100%;border-collapse:collapse}
.modal-table td{padding:8px 4px;border-bottom:1px solid var(--border);font-size:14px}
.modal-table tr:last-child td{border-bottom:none;font-weight:bold;padding-top:12px}

.lightbox-overlay{background:rgba(0,0,0,.85);cursor:zoom-out}
.lightbox-overlay img{max-width:90vw;max-height:85vh;border-radius:6px;display:block;box-shadow:0 8px 30px rgba(0,0,0,.5)}
.lightbox-close{position:absolute;top:20px;right:24px;background:none;border:none;color:#fff;font-size:34px;cursor:pointer;line-height:1}

.site-footer{background:#000;color:#aaa;text-align:center;padding:30px 0;font-size:13px;margin-top:60px}
.footer-inner{display:flex;flex-direction:column;align-items:center;gap:16px}
.footer-logo{height:42px}
.footer-credit{color:#999}
.footer-credit a{color:#fff;text-decoration:none}
.footer-credit a:hover{text-decoration:underline}

@media(max-width:900px){
  .header-top{justify-content:center;text-align:center}
  .header-contact{justify-content:center;gap:20px}
}

@media(max-width:600px){
  .wrap{padding:0 14px}
  .logo img{height:40px}
  .header-top{padding:14px}
  .header-contact{flex-direction:column;align-items:center;gap:10px}
  .contact-item{flex-direction:column;text-align:center;gap:4px}
  .header-bar{font-size:13px;text-align:center}

  .stepper{gap:2px;margin:18px 0}
  .stepper li{font-size:10px;min-width:0;padding-top:34px}
  .stepper li span{width:24px;height:24px;font-size:11px}

  .step-panel h2{font-size:17px}
  .card-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}

  .dim-row{padding:12px}
  .wizard-nav{flex-direction:column;gap:10px}
  .wizard-nav .btn{width:100%}

  .order-form{max-width:none}
  .recap-totals{text-align:center}

  .modal-box{padding:18px}
  .footer-logo{height:32px}
  .footer-credit{font-size:12px;padding:0 10px}
}