*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:#f7f7f7;color:#111}
.container{width:min(1100px,92%);margin:0 auto}.site-header{background:#111;color:#fff}.nav{display:flex;justify-content:space-between;align-items:center;padding:16px 0;gap:18px}.logo{color:#fff;text-decoration:none;font-weight:700;font-size:24px}
#siteNav{display:flex;gap:16px;align-items:center}#siteNav a{color:#fff;text-decoration:none}.menu-toggle{display:none;background:none;border:0;color:#fff;font-size:28px}
.hero{padding:80px 0;background:#111;color:#fff;text-align:center}.btn{display:inline-block;background:#111;color:#fff;text-decoration:none;border:0;padding:12px 18px;border-radius:10px;cursor:pointer}.btn-dark{background:#333}.btn-small{padding:8px 12px;font-size:13px}
.product-grid,.grid,.stats-grid{display:grid;gap:20px}.product-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.card,.product-card,.stat-card,.admin-section,.admin-form,.auth-box,.account-card,.receipt-box,.checkout-form-box,.checkout-summary-box{background:#fff;border-radius:14px;padding:20px;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.product-card img,.product-image img{width:100%;height:260px;object-fit:cover;border-radius:12px}.product-actions,.action-links,.cart-buttons,.receipt-actions{display:flex;gap:10px;flex-wrap:wrap}
.site-footer{padding:30px 0;text-align:center;background:#111;color:#fff;margin-top:40px}.form-group{margin-bottom:16px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px;border:1px solid #ddd;border-radius:10px}
.admin-layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.admin-sidebar{background:#111;color:#fff;padding:20px;display:flex;flex-direction:column;gap:10px}.admin-sidebar a{color:#fff;text-decoration:none;padding:10px 12px;border-radius:10px}.admin-sidebar a:hover{background:#222}.admin-main{padding:24px}.admin-table,.cart-table,.receipt-table{width:100%;border-collapse:collapse}.admin-table th,.admin-table td,.cart-table th,.cart-table td,.receipt-table th,.receipt-table td{padding:12px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}
.alert{padding:14px 16px;border-radius:10px;margin:14px 0}.success{background:#e8f8ee;color:#1b7a3d}.error{background:#fdecec;color:#b42318}
.auth-page,.account-page,.checkout-page,.receipt-page,.about-page,.contact-page{padding:50px 0}.auth-box{max-width:520px;margin:0 auto}.account-grid,.checkout-wrap,.admin-two-col,.form-grid{display:grid;gap:20px;grid-template-columns:repeat(2,1fr)}.order-info-list p{margin:8px 0}
.summary-total{padding:10px 0;border-top:1px solid #eee;display:flex;justify-content:space-between}.small-code{font-family:monospace;font-size:12px;word-break:break-all}.visitor-url{max-width:280px;word-break:break-word;font-size:13px}
@media (max-width:900px){.admin-layout{grid-template-columns:1fr}.menu-toggle{display:block}#siteNav{display:none;flex-direction:column;align-items:flex-start;width:100%}#siteNav.show{display:flex}.nav{flex-wrap:wrap}.account-grid,.checkout-wrap,.admin-two-col,.form-grid{grid-template-columns:1fr}}