/* LAYOUT */
        .page-wrap{max-width:1200px;margin:32px auto;padding:0 24px;}
        .checkout-layout{display:grid;grid-template-columns:1fr 380px;gap:28px;align-items:start;}

        /* CARDS */
        .form-card{background:var(--card-bg);border:1px solid var(--border);border-radius:20px;padding:28px;margin-bottom:20px;}
        .form-section-title{font-family:'Syne',sans-serif;font-size:16px;font-weight:700;margin-bottom:20px;display:flex;align-items:center;gap:10px;}
        .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
        .form-group{display:flex;flex-direction:column;gap:6px;}
        .form-group.full{grid-column:1/-1;}
        label.field-label{font-size:13px;font-weight:600;color:var(--text2);display:block;margin-bottom:6px;}
        label.field-label .req{color:var(--accent2);}
        input[type=text],input[type=email],input[type=tel],textarea{
            background:var(--bg3);border:1px solid var(--border);color:var(--text);
            border-radius:10px;padding:11px 14px;font-size:14px;font-family:inherit;outline:none;width:100%;
            transition:border-color .2s,box-shadow .2s;
        }
        input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow);}
        textarea{resize:vertical;min-height:80px;}

        /* ZÁSILKOVNA */
        .zasilkovna-box{background:var(--bg3);border:1.5px solid var(--border);border-radius:14px;padding:20px;transition:border-color .2s;}
        .zasilkovna-box.selected{border-color:var(--accent);background:var(--accent-glow);}
        .zasilkovna-chosen{display:flex;align-items:center;gap:12px;margin-top:12px;padding:12px 14px;background:var(--card-bg);border:1px solid var(--border);border-radius:10px;}
        .zasilkovna-chosen i{color:var(--accent);font-size:20px;}
        .zasilkovna-chosen .name{font-weight:600;font-size:14px;}
        .zasilkovna-chosen .addr{font-size:12px;color:var(--text3);}
        .btn-zasilkovna{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border:none;border-radius:10px;padding:11px 20px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .2s;}
        .btn-zasilkovna:hover{opacity:.88;}

        /* SELLER GROUPS */
        .seller-group{background:var(--card-bg);border:1px solid var(--border);border-radius:20px;margin-bottom:20px;overflow:hidden;}
        .seller-group-header{display:flex;align-items:center;gap:12px;padding:18px 24px;background:var(--bg3);border-bottom:1px solid var(--border);}
        .seller-avatar-sm{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-family:'Syne',sans-serif;font-weight:800;font-size:14px;color:#fff;flex-shrink:0;}
        .seller-group-name{font-family:'Syne',sans-serif;font-weight:700;font-size:15px;}
        .seller-ship-badge{margin-left:auto;display:flex;align-items:center;gap:6px;background:rgba(200,80,245,.12);border:1px solid rgba(200,80,245,.2);border-radius:20px;padding:4px 12px;font-size:12px;color:var(--accent);}
        .seller-items{padding:0 24px;}
        .seller-item{padding:16px 0;border-bottom:1px solid var(--border);}
        .seller-item:last-child{border-bottom:none;}
        .seller-item-top{display:flex;align-items:center;gap:14px;margin-bottom:10px;}
        .item-thumb{width:54px;height:44px;border-radius:8px;overflow:hidden;background:var(--bg3);flex-shrink:0;}
        .item-thumb img{width:100%;height:100%;object-fit:cover;}
        .item-name{flex:1;font-size:14px;font-weight:600;}
        .item-qty{color:var(--text3);font-size:13px;}
        .item-price{font-family:'Syne',sans-serif;font-size:14px;font-weight:700;color:var(--accent);}
        .item-note-label{font-size:12px;color:var(--text3);margin-bottom:5px;display:flex;align-items:center;gap:5px;}
        .item-note-label i{font-size:13px;}

        /* STRIPE */
        .stripe-box{background:var(--bg3);border:1.5px solid var(--border);border-radius:14px;padding:20px;}
        .stripe-logos{display:flex;align-items:center;gap:8px;margin-bottom:14px;flex-wrap:wrap;}
        .stripe-logos span{font-size:12px;color:var(--text3);}
        #stripe-card-element{background:var(--card-bg);border:1px solid var(--border);border-radius:10px;padding:13px 14px;transition:border-color .2s;}
        #stripe-card-element.StripeElement--focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow);}
        #stripe-errors{color:var(--accent2);font-size:13px;margin-top:8px;min-height:18px;}

        /* BUTTONS */
        .btn-order{display:block;width:100%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border:none;border-radius:14px;padding:18px;font-family:'Syne',sans-serif;font-size:18px;font-weight:700;cursor:pointer;transition:opacity .2s,transform .15s;margin-top:20px;display:flex;align-items:center;justify-content:center;gap:10px;}
        .btn-order:hover:not(:disabled){opacity:.9;transform:translateY(-1px);}
        .btn-order:disabled{opacity:.5;cursor:not-allowed;transform:none;}
        .error-msg{background:rgba(255,77,141,.12);border:1px solid var(--accent2);color:var(--accent2);border-radius:10px;padding:12px 16px;font-size:14px;margin-bottom:16px;}

        /* SUMMARY */
        .summary-card{background:var(--card-bg);border:1px solid var(--border);border-radius:20px;padding:24px;position:sticky;top:88px;}
        .summary-title{font-family:'Syne',sans-serif;font-size:18px;font-weight:700;margin-bottom:18px;}
        .sum-seller{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--text3);margin:14px 0 6px;font-weight:600;}
        .sum-item{display:flex;justify-content:space-between;font-size:13px;color:var(--text2);padding:4px 0;}
        .sum-item .name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-right:8px;}
        .sum-item .price{flex-shrink:0;font-weight:600;color:var(--text);}
        .sum-ship{display:flex;justify-content:space-between;font-size:12px;color:var(--text3);padding:4px 0 10px;border-bottom:1px solid var(--border);}
        .sum-totals{margin-top:14px;padding-top:12px;border-top:1px solid var(--border);}
        .sum-row{display:flex;justify-content:space-between;font-size:14px;color:var(--text2);padding:5px 0;}
        .sum-row.big{font-family:'Syne',sans-serif;font-size:20px;font-weight:800;color:var(--text);padding-top:12px;margin-top:4px;border-top:1px solid var(--border);}
        .sum-row.big .right{background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
        .sum-note{font-size:12px;color:var(--text3);margin-top:12px;padding:10px 12px;background:var(--bg3);border-radius:8px;line-height:1.5;}

        /* SUCCESS */
        .success-wrap{text-align:center;padding:80px 24px;background:var(--card-bg);border:1px solid var(--border);border-radius:24px;max-width:520px;margin:60px auto;}
        .success-icon{font-size:72px;margin-bottom:20px;}
        .success-title{font-family:'Syne',sans-serif;font-size:28px;font-weight:800;margin-bottom:12px;}
        .success-desc{color:var(--text2);margin-bottom:28px;}
        .btn-go{display:inline-block;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;padding:14px 32px;border-radius:12px;font-weight:700;font-size:15px;}

        @media(max-width:768px){
            .checkout-layout{grid-template-columns:1fr;}
            .form-grid{grid-template-columns:1fr;}
            .steps{display:none;}
            .page-wrap{padding:0 16px;}
            .summary-card{position:static;}
        }