:root{--store-navy:#0f172a;--store-blue:#2563eb;--store-cyan:#0ea5e9;--store-bg:#f5f7fb;--store-border:#e7ebf1;--store-muted:#64748b}
html,body{min-height:100%}
body.store-body{background:var(--store-bg);color:#172033;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif}
a{color:inherit}
.store-nav{background:rgba(255,255,255,.97);border-bottom:1px solid var(--store-border);backdrop-filter:blur(10px)}
.store-brand{text-decoration:none;display:flex;align-items:center;gap:.7rem;min-width:0}
.brand-mark{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,var(--store-cyan),var(--store-blue));box-shadow:0 7px 18px rgba(37,99,235,.22);flex:0 0 auto;overflow:hidden}
.brand-mark img{width:100%;height:100%;object-fit:contain;background:#fff}
.brand-fallback{width:100%;height:100%;display:grid;place-items:center;color:#fff;font-weight:800;font-size:1.15rem}
.brand-text{min-width:0;display:flex;flex-direction:column}
.brand-name{font-weight:800;letter-spacing:-.02em;line-height:1.1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-tag{font-size:.72rem;color:var(--store-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}
.nav-action{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;text-decoration:none;border:1px solid #d9e1eb;border-radius:11px;padding:.55rem .75rem;font-size:.9rem;background:#fff;color:#334155;transition:.15s}
.nav-action:hover{border-color:#b8c7d9;background:#f8fafc}
.nav-action.primary{border-color:#bfdbfe;background:#eff6ff;color:#1d4ed8}
.cart-badge{min-width:20px;height:20px;padding:0 6px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:#2563eb;color:#fff;font-size:.7rem;font-weight:700}
.store-page{padding:1.25rem 0 3rem}
.store-hero{border-radius:24px;overflow:hidden;background:linear-gradient(135deg,#0ea5e9,#2563eb 65%,#1d4ed8);color:#fff;box-shadow:0 18px 50px rgba(37,99,235,.18)}
.store-hero-inner{padding:clamp(1.5rem,5vw,3.25rem)}
.store-hero h1{font-weight:850;letter-spacing:-.04em;max-width:800px}
.store-hero p{max-width:700px;color:rgba(255,255,255,.88)}
.store-search{background:#fff;border:1px solid var(--store-border);border-radius:16px;padding:.8rem;box-shadow:0 12px 35px rgba(15,23,42,.06)}
.product-card{border:1px solid var(--store-border)!important;border-radius:18px!important;overflow:hidden;background:#fff;box-shadow:0 6px 25px rgba(15,23,42,.05)!important;transition:transform .18s,box-shadow .18s}
.product-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(15,23,42,.10)!important}
.product-media{height:220px;background:linear-gradient(135deg,#eef7ff,#e0e7ff);display:flex;align-items:center;justify-content:center;overflow:hidden}
.product-media img{width:100%;height:100%;object-fit:cover}
.product-media .placeholder-icon{font-size:3.4rem}
.product-card .card-body{padding:1.05rem}
.price{font-size:1.18rem;font-weight:800}
.product-detail-image{border-radius:22px;border:1px solid var(--store-border);background:#eef5ff;overflow:hidden;min-height:420px;display:grid;place-items:center}
.product-detail-image img{width:100%;height:100%;object-fit:cover;max-height:540px}
.content-box{background:#fff;border:1px solid var(--store-border);border-radius:16px;padding:1.1rem 1.2rem;line-height:1.8}
.checkout-page{padding:2rem 1rem 3rem}
.checkout-sheet{width:min(100%,460px);margin:0 auto;background:#fff;border:1px solid var(--store-border);border-radius:18px;box-shadow:0 18px 45px rgba(15,23,42,.08);padding:1.15rem}
.checkout-title{font-size:1rem;font-weight:800;display:flex;align-items:center;gap:.5rem;margin:1rem 0 .7rem;padding-bottom:.5rem;border-bottom:1px solid #dbe3ec}
.checkout-title:first-of-type{margin-top:.2rem}
.checkout-label{font-size:.75rem;font-weight:700;color:#334155;margin-bottom:.35rem}
.checkout-control{height:42px;font-size:.88rem;background:#f8fafc;border:1px solid #d7e0ea}
.checkout-control:focus{border-color:#60a5fa;box-shadow:0 0 0 .2rem rgba(37,99,235,.10)}
.pay-choice{border:1px solid #dbe3ec;border-radius:10px;background:#f8fafc;margin-bottom:.5rem;padding:.7rem .75rem;display:flex;align-items:center;gap:.6rem;cursor:pointer;font-size:.85rem;transition:.15s}
.pay-choice:hover{border-color:#bcd0e5;background:#f1f7ff}
.pay-choice input{margin:0;accent-color:#2563eb}
.order-box{border:1.5px solid #2563eb;border-radius:12px;padding:.8rem .85rem;margin-top:.8rem;font-size:.8rem;background:#fff}
.manual-box{background:#fffbea;border:1px solid #f2ca72;border-radius:12px;padding:.85rem}
.checkout-cta{height:48px;border-radius:11px;font-weight:800}
.store-footer{background:#fff;border-top:1px solid var(--store-border)}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:1rem}
.store-banner{min-height:330px;background:linear-gradient(135deg,#0ea5e9,#2563eb);color:#fff;background-size:cover;background-position:center}
.invoice{max-width:820px;margin:2rem auto;background:#fff;padding:36px;border-radius:16px;border:1px solid var(--store-border);box-shadow:0 12px 36px rgba(15,23,42,.06)}
@media(max-width:767px){.brand-tag{display:none}.store-page{padding-top:.8rem}.product-media{height:200px}.checkout-page{padding:1rem .5rem 2rem}.checkout-sheet{border-radius:14px;padding:.9rem}.footer-inner{flex-direction:column;align-items:flex-start}}
@media print{body.store-body{background:#fff}.no-print{display:none!important}.invoice{margin:0;max-width:none;box-shadow:none;border:0;padding:0}@page{size:A4;margin:12mm}}
/* V5.8 layout hardening */
.store-page{scroll-margin-top:90px}
.checkout-page{min-height:calc(100vh - 76px)}
.checkout-sheet{position:relative;z-index:1}
.product-detail-image img{display:block}
@media(max-width:767px){.store-nav .navbar-collapse{padding-bottom:.5rem}.checkout-page{padding-top:1.25rem}.checkout-title{font-size:.96rem}}

/* V5.9 UI polish */
.store-nav .navbar-toggler{border-color:#dbe3ec}
.store-nav .navbar-toggler:focus{box-shadow:0 0 0 .2rem rgba(37,99,235,.12)}
.store-hero h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.08}
.store-search .form-control,.store-search .form-select{min-height:48px}
.product-card .btn{min-height:42px}
@media(max-width:991px){.store-nav .container{padding-left:.85rem;padding-right:.85rem}.nav-action{width:100%}.store-nav .navbar-collapse{background:#fff;border-top:1px solid var(--store-border);margin-top:.6rem;padding-top:.7rem}.store-nav .navbar-nav{padding-bottom:.5rem}}