@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";
:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#1a1a26;--bg-hover:#22222f;--accent-purple:#8b5cf6;--accent-pink:#ec4899;--accent-blue:#3b82f6;--accent-green:#10b981;--accent-red:#ef4444;--accent-orange:#f59e0b;--momo-color:#ae2070;--zalopay-color:#0068ff;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--border:#ffffff14;--border-hover:#ffffff29;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--shadow-card:0 4px 24px #0006;--shadow-glow:0 0 40px #8b5cf626}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Inter,system-ui,sans-serif;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);background:#0a0a0fd9;justify-content:space-between;align-items:center;height:64px;padding:0 24px;display:flex;position:sticky;top:0}.navbar-logo{background:linear-gradient(135deg, var(--accent-purple), var(--accent-pink));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.25rem;font-weight:800;text-decoration:none}.navbar-links{align-items:center;gap:8px;list-style:none;display:flex}.navbar-links a{color:var(--text-secondary);border-radius:var(--radius-sm);padding:8px 16px;font-size:.875rem;font-weight:500;text-decoration:none;transition:all .2s}.navbar-links a:hover{color:var(--text-primary);background:var(--bg-hover)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:all .3s}.card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-card);transform:translateY(-2px)}.btn{border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-family:inherit;font-size:.875rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.btn-primary{background:linear-gradient(135deg, var(--accent-purple), var(--accent-pink));color:#fff;box-shadow:0 4px 15px #8b5cf64d}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 8px 25px #8b5cf666}.btn-secondary{background:var(--bg-hover);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){border-color:var(--border-hover);background:#2a2a3a}.btn-momo{background:var(--momo-color);color:#fff;box-shadow:0 4px 15px #ae20704d}.btn-momo:hover:not(:disabled){filter:brightness(1.1);transform:translateY(-2px);box-shadow:0 8px 25px #ae207080}.btn-zalopay{background:var(--zalopay-color);color:#fff;box-shadow:0 4px 15px #0068ff4d}.btn-zalopay:hover:not(:disabled){filter:brightness(1.1);transform:translateY(-2px);box-shadow:0 8px 25px #0068ff80}.btn-danger{color:var(--accent-red);background:#ef444426;border:1px solid #ef44444d}.btn-danger:hover:not(:disabled){background:#ef444440}.btn-sm{padding:6px 12px;font-size:.8rem}.btn-lg{padding:14px 28px;font-size:1rem}.btn-full{width:100%}.badge{text-transform:uppercase;letter-spacing:.05em;border-radius:100px;align-items:center;padding:4px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.badge-pending{color:var(--accent-orange);background:#f59e0b26;border:1px solid #f59e0b4d}.badge-paid{color:var(--accent-green);background:#10b98126;border:1px solid #10b9814d}.badge-failed{color:var(--accent-red);background:#ef444426;border:1px solid #ef44444d}.badge-cancelled{color:var(--text-muted);background:#64748b26;border:1px solid #64748b4d}.badge-processing{color:var(--accent-blue);background:#3b82f626;border:1px solid #3b82f64d}.form-group{flex-direction:column;gap:6px;display:flex}.form-label{color:var(--text-secondary);font-size:.875rem;font-weight:500}.form-input{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);outline:none;width:100%;padding:10px 14px;font-family:inherit;font-size:.875rem;transition:border-color .2s}.form-input:focus{border-color:var(--accent-purple)}.form-input::placeholder{color:var(--text-muted)}select.form-input{cursor:pointer}.product-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;display:grid}.product-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);cursor:pointer;transition:all .3s;overflow:hidden}.product-card:hover{border-color:#8b5cf666;transform:translateY(-4px);box-shadow:0 12px 40px #8b5cf626}.product-card-img{aspect-ratio:1;object-fit:cover;background:var(--bg-secondary);width:100%;display:block}.product-card-body{padding:16px}.product-card-category{text-transform:uppercase;letter-spacing:.08em;color:var(--accent-purple);margin-bottom:6px;font-size:.7rem;font-weight:600}.product-card-name{color:var(--text-primary);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:4px;font-size:.95rem;font-weight:600;display:-webkit-box;overflow:hidden}.product-card-desc{color:var(--text-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:12px;font-size:.8rem;display:-webkit-box;overflow:hidden}.product-card-price{color:var(--accent-purple);font-size:1.1rem;font-weight:700}.product-card-footer{border-top:1px solid var(--border);justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.page-header{text-align:center;padding:48px 0 32px}.page-title{background:linear-gradient(135deg,#f1f5f9,#94a3b8);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:8px;font-size:2.5rem;font-weight:800}.page-subtitle{color:var(--text-secondary);font-size:1rem}.divider{border:none;border-top:1px solid var(--border);margin:24px 0}.glow-purple{box-shadow:0 0 30px #8b5cf633}.glow-pink{box-shadow:0 0 30px #ec489933}.spinner{border:3px solid var(--border);border-top-color:var(--accent-purple);border-radius:50%;width:40px;height:40px;margin:40px auto;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.alert{border-radius:var(--radius-sm);padding:12px 16px;font-size:.875rem;font-weight:500}.alert-success{color:var(--accent-green);background:#10b98126;border:1px solid #10b9814d}.alert-error{color:var(--accent-red);background:#ef444426;border:1px solid #ef44444d}.alert-info{color:var(--accent-blue);background:#3b82f626;border:1px solid #3b82f64d}.cart-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:200;background:#000000b3;animation:.2s fadeIn;position:fixed;inset:0}.cart-sidebar{background:var(--bg-secondary);border-left:1px solid var(--border);z-index:201;flex-direction:column;width:420px;max-width:100vw;height:100vh;animation:.3s slideIn;display:flex;position:fixed;top:0;right:0}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.cart-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.cart-body{flex:1;padding:16px 24px;overflow-y:auto}.cart-footer{border-top:1px solid var(--border);padding:20px 24px}.cart-item{border-bottom:1px solid var(--border);gap:12px;padding:12px 0;display:flex}.cart-item:last-child{border-bottom:none}.cart-item-img{border-radius:var(--radius-sm);object-fit:cover;background:var(--bg-card);flex-shrink:0;width:60px;height:60px}.cart-item-info{flex:1}.cart-item-name{font-size:.875rem;font-weight:600}.cart-item-price{color:var(--accent-purple);font-size:.8rem;font-weight:600}.qty-control{align-items:center;gap:8px;margin-top:6px;display:flex}.qty-btn{border:1px solid var(--border);background:var(--bg-card);width:24px;height:24px;color:var(--text-primary);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;font-size:.875rem;transition:all .15s;display:flex}.qty-btn:hover{background:var(--bg-hover);border-color:var(--border-hover)}.checkout-grid{grid-template-columns:1fr 380px;align-items:start;gap:24px;display:grid}@media (max-width:768px){.checkout-grid{grid-template-columns:1fr}.cart-sidebar{width:100vw}}.payment-option{border:2px solid var(--border);border-radius:var(--radius-md);cursor:pointer;align-items:center;gap:12px;padding:16px;transition:all .2s;display:flex}.payment-option.selected-momo{border-color:var(--momo-color);background:#ae207014}.payment-option.selected-zalopay{border-color:var(--zalopay-color);background:#0068ff14}.payment-option.selected-vnpay{border-color:var(--vnpay-color,#005a9e);background:#005a9e14}.payment-option.selected-sepay{border-color:var(--success-color,#10b981);background:#10b98114}.payment-option:hover{border-color:var(--border-hover);background:var(--bg-hover)}.order-row{color:var(--text-secondary);justify-content:space-between;align-items:center;padding:8px 0;font-size:.875rem;display:flex}.order-row.total{color:var(--text-primary);border-top:1px solid var(--border);margin-top:4px;padding-top:12px;font-size:1rem;font-weight:700}.result-page{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:80vh;padding:40px 20px;display:flex}.result-icon{margin-bottom:24px;font-size:5rem;animation:.5s cubic-bezier(.34,1.56,.64,1) pop}@keyframes pop{0%{opacity:0;transform:scale(0)}to{opacity:1;transform:scale(1)}}