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0 8px;background:linear-gradient(135deg,#22d3ee,#06b6d4,#0891b2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:700}.seller-header-content p{margin:0;color:var(--seller-text-muted);font-size:14px}.btn-add-product{padding:14px 32px;background:linear-gradient(135deg,#22d3ee,#06b6d4,#0891b2);color:#fff;border:none;border-radius:14px;font-size:15px;font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 20px #22d3ee66;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}.btn-add-product:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 8px 30px #22d3ee80,0 0 40px #22d3ee33}.seller-content{display:flex;flex-direction:column;gap:40px}.seller-form-section{background:linear-gradient(135deg,#1e293bd9,#0f172af2);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--seller-border);border-radius:24px;padding:32px;box-shadow:0 20px 50px #0000004d,0 0 40px #22d3ee14;animation:slideDown .4s cubic-bezier(.34,1.56,.64,1)}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.form-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--seller-border)}.form-header h3{margin:0;font-size:22px;color:var(--seller-text);font-weight:700}.btn-close{background:#ef444426;border:1px solid rgba(239,68,68,.3);border-radius:10px;padding:10px 14px;font-size:18px;color:#fca5a5;cursor:pointer;transition:all .3s ease}.btn-close:hover{background:#ef444440;border-color:#ef4444;transform:scale(1.1)}.seller-form{width:100%}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-bottom:28px}.form-group{display:flex;flex-direction:column}.form-group.full-width{grid-column:1 / -1}.form-group label{margin-bottom:10px;font-size:14px;font-weight:600;color:var(--seller-text)}.form-input,.form-group input,.form-group select,.form-group textarea{padding:14px 18px;border:2px solid var(--seller-border);border-radius:12px;font-size:14px;font-family:inherit;background:#0f172acc;color:var(--seller-text);transition:all .3s ease}.form-input::placeholder,.form-group input::placeholder,.form-group textarea::placeholder{color:#94a3b880}.form-input:focus,.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--seller-primary);background:#0f172a;box-shadow:0 0 0 4px #22d3ee26,0 0 30px #22d3ee1a}.image-upload-area{display:flex;flex-direction:column;gap:16px;padding:24px;background:#0f172a99;border:2px dashed var(--seller-border);border-radius:16px;text-align:center;transition:all .3s ease}.image-upload-area:hover{border-color:var(--seller-primary);background:#22d3ee0d}.upload-input-group{position:relative;overflow:hidden}.file-input{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}.file-label{display:inline-block;padding:12px 24px;background:linear-gradient(135deg,#22d3ee,#06b6d4);color:#fff;border-radius:10px;font-weight:700;cursor:pointer;transition:all .3s ease}.upload-input-group:hover .file-label{transform:scale(1.05);box-shadow:0 4px 16px #22d3ee4d}.divider{color:var(--seller-text-muted);font-size:13px;font-weight:600}.image-preview-container{margin-top:16px}.image-preview{max-width:200px;max-height:200px;border-radius:12px;overflow:hidden;box-shadow:0 8px 20px #0000004d;border:2px solid var(--seller-border)}.image-preview img{width:100%;height:100%;object-fit:cover}.form-actions{display:flex;gap:16px;margin-top:28px}.btn-submit,.btn-cancel{flex:1;padding:16px 28px;border:none;border-radius:14px;font-size:15px;font-weight:700;cursor:pointer;transition:all .3s ease;text-transform:uppercase;letter-spacing:.5px}.btn-submit{background:linear-gradient(135deg,#22d3ee,#06b6d4,#0891b2);color:#fff;box-shadow:0 4px 20px #22d3ee66}.btn-submit:hover{transform:translateY(-3px);box-shadow:0 8px 30px #22d3ee80}.btn-cancel{background:#64748b4d;color:var(--seller-text);border:1px solid rgba(100,116,139,.5)}.btn-cancel:hover{background:#64748b80}.seller-products-section{display:flex;flex-direction:column;gap:28px}.products-header{display:flex;align-items:center;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--seller-border)}.products-header h3{margin:0;font-size:22px;color:var(--seller-text);font-weight:700}.empty-state{text-align:center;padding:80px 24px;background:linear-gradient(135deg,#1e293b99,#0f172acc);border:2px dashed var(--seller-border);border-radius:24px}.empty-icon{font-size:72px;margin-bottom:20px}.empty-state h4{margin:0 0 12px;font-size:24px;color:var(--seller-text)}.empty-state p{margin:0 0 28px;color:var(--seller-text-muted);font-size:15px}.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:28px}.product-card{background:linear-gradient(135deg,#1e293bd9,#0f172af2);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--seller-border);border-radius:20px;overflow:hidden;transition:all .4s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;height:100%;box-shadow:0 8px 24px #0003}.product-card:hover{border-color:var(--seller-primary);box-shadow:0 16px 48px #0000004d,0 0 40px #22d3ee26;transform:translateY(-6px)}.product-image{position:relative;width:100%;height:220px;overflow:hidden;background:linear-gradient(135deg,#1e293b,#0f172a)}.product-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.product-card:hover .product-image img{transform:scale(1.08)}.product-category{position:absolute;top:14px;right:14px;background:linear-gradient(135deg,#22d3eee6,#06b6d4e6);color:#fff;padding:8px 14px;border-radius:10px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;box-shadow:0 4px 12px #22d3ee4d}.product-details{padding:24px;display:flex;flex-direction:column;flex:1}.product-details h4{margin:0 0 10px;font-size:18px;font-weight:700;color:var(--seller-text);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.description{margin:0 0 18px;font-size:13px;color:var(--seller-text-muted);line-height:1.6;flex-grow:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.product-meta{display:flex;flex-direction:column;gap:12px;margin-bottom:18px;padding:16px;background:#22d3ee0d;border:1px solid rgba(34,211,238,.1);border-radius:12px}.meta-item{display:flex;justify-content:space-between;align-items:flex-start;font-size:13px;gap:12px}.meta-item .label{font-weight:700;color:var(--seller-primary);flex-shrink:0}.meta-item .value{color:var(--seller-text-muted);text-align:right;word-break:break-word}.product-footer{display:flex;flex-direction:column;gap:16px;padding:16px 0 0;margin-top:auto;border-top:1px solid var(--seller-border)}.price{font-size:22px;font-weight:800;background:linear-gradient(135deg,#22d3ee,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.product-actions{display:flex;gap:12px;width:100%}.btn-icon{flex:1;padding:12px 16px;border:2px solid transparent;border-radius:12px;font-size:14px;font-weight:700;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap}.btn-icon.edit{background:#4ade8026;color:#4ade80;border-color:#4ade804d}.btn-icon.edit:hover{background:#4ade8040;border-color:#4ade80;transform:translateY(-3px);box-shadow:0 6px 20px #4ade8040}.btn-icon.delete{background:#ef444426;color:#fca5a5;border-color:#ef44444d}.btn-icon.delete:hover{background:#ef444440;border-color:#ef4444;transform:translateY(-3px);box-shadow:0 6px 20px #ef444433}@media(max-width:1024px){.products-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.seller-header{flex-direction:column;align-items:flex-start;text-align:center}.seller-header-content{text-align:left}.btn-add-product{width:100%}.form-grid{grid-template-columns:1fr}}@media(max-width:768px){.seller-container{padding:24px 16px}.seller-header{padding:24px;border-radius:20px}.seller-header-content 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.meta .title{font-weight:700;color:var(--text)}.simple-item .meta .category{color:var(--muted);font-size:.9rem}.simple-item .meta .price{color:var(--accent);font-weight:700}.simple-item button{background:transparent;border:1px solid rgba(255,255,255,.04);color:var(--text);padding:6px 8px;border-radius:8px}.simple-item img.thumb{width:56px;height:56px;object-fit:cover;border-radius:8px;margin-right:12px;border:1px solid var(--border)}.simple-item{background:var(--panel);border:1px solid var(--border)}.feature-categories{margin:18px 0 32px;overflow-x:auto;white-space:nowrap;padding-bottom:4px}.category-row{display:flex;gap:22px;align-items:center;justify-content:flex-start;padding:6px 4px;scroll-behavior:smooth}.category-item{flex:0 0 auto;background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow-1);display:flex;flex-direction:column;align-items:center;padding:10px 14px;cursor:pointer;transition:transform .25s ease,background-color .25s ease,box-shadow .25s ease}.category-item{flex:0 0 auto;background:linear-gradient(135deg,#fffffff2,#ffffffd9);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.3);border-radius:var(--radius);box-shadow:var(--shadow-1);display:flex;flex-direction:column;align-items:center;padding:14px 18px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.category-item:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s}.category-item:hover:before{left:100%}.category-item:hover{transform:translateY(-6px) scale(1.08);background:linear-gradient(135deg,var(--accent),#1d4ed8);box-shadow:0 15px 35px #2563eb4d}.category-item:hover img{transform:scale(1.15);filter:brightness(0) invert(1)}.category-item img{width:36px;height:36px;margin-bottom:6px;opacity:.85;transition:transform .25s ease,opacity .25s ease}.category-item span{font-size:.9rem;font-weight:600;color:var(--text)}.category-item:hover img{transform:scale(1.1);opacity:1}.category-item:hover span{color:#fff}.category-item img{width:36px;height:36px;margin-bottom:6px;opacity:.9;transition:transform .25s ease,opacity .25s ease,filter .25s ease;filter:grayscale(30%) brightness(1.1)}.category-item[data-category=Wood] img{filter:hue-rotate(30deg) saturate(1.5)}.category-item[data-category=Glass] img{filter:hue-rotate(190deg) saturate(1.5)}.category-item[data-category=Metals] img{filter:hue-rotate(160deg) saturate(.8)}.category-item[data-category=Cement] img{filter:hue-rotate(0deg) brightness(.8)}.category-item[data-category=Plastic] img{filter:hue-rotate(120deg) saturate(1.2)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:#f1f5f9;border-radius:10px}::-webkit-scrollbar-thumb{background:#94a3b8;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#64748b}.card{opacity:0;animation:fadeInUp .6s ease-out forwards}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.auth-container{min-height:calc(100vh - 80px);display:flex;align-items:center;justify-content:center;padding:40px 20px}.auth-card{width:100%;max-width:450px;background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:24px;padding:40px;box-shadow:0 20px 60px #1f268726,inset 0 1px #fff9;border:1px solid rgba(255,255,255,.3);animation:fadeInUp .6s ease-out}.auth-header{text-align:center;margin-bottom:32px}.auth-header h2{margin:0 0 8px;font-size:32px;font-weight:700;background:linear-gradient(135deg,#22d3ee,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.auth-header p{margin:0;color:#6b7280;font-size:14px;font-weight:500}.auth-error{background:#ef44441a;color:#dc2626;padding:12px 16px;border-radius:12px;margin-bottom:20px;font-size:14px;border-left:4px solid 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0;position:relative}.auth-divider:before,.auth-divider:after{content:"";position:absolute;top:50%;width:45%;height:1px;background:#e6eef9}.auth-divider:before{left:0}.auth-divider:after{right:0}.auth-info{background:#22d3ee0d;border-radius:16px;padding:20px;margin-bottom:24px}.info-title{margin:0 0 16px;font-size:13px;font-weight:700;color:#0891b2;text-transform:uppercase;letter-spacing:.5px}.role-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}.role-list li{display:flex;align-items:center;gap:12px;font-size:13px;color:#4b5563}.role-badge{display:inline-block;padding:4px 12px;border-radius:6px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;min-width:70px;text-align:center}.role-badge.buyer{background:#3b82f626;color:#1d4ed8}.role-badge.seller{background:#22c55e26;color:#166534}.role-badge.admin{background:#ef444426;color:#b91c1c}.signup-card .auth-info{background:transparent;padding:0}.role-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}.role-card{background:#fffc;border:2px solid #e6eef9;border-radius:12px;padding:16px;text-align:center;transition:all .3s ease}.role-card:hover{border-color:#22d3ee;box-shadow:0 8px 16px #22d3ee1a;transform:translateY(-2px)}.role-icon{font-size:32px;margin-bottom:8px}.role-card h4{margin:8px 0;font-size:14px;font-weight:700;color:var(--text)}.role-card p{margin:0;font-size:12px;color:#6b7280;line-height:1.4}.auth-note{margin:16px 0 0;font-size:12px;color:#6b7280;text-align:center;font-style:italic}.auth-footer{text-align:center;padding-top:20px;border-top:1px solid #e6eef9}.auth-footer p{margin:0;font-size:14px;color:#4b5563}.link{color:#667eea;text-decoration:none;font-weight:600;transition:all .2s ease}.link:hover{color:#764ba2;text-decoration:underline}@media(max-width:600px){.auth-card{padding:24px;border-radius:20px}.auth-header h2{font-size:24px}.role-cards{grid-template-columns:1fr}}.auth-modal-overlay{position:fixed;inset:0;background:#020617bf;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.auth-modal-card{background:#0f172ad9;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-radius:24px;padding:44px 40px;width:90%;max-width:400px;box-shadow:0 0 60px #22d3ee1f,0 25px 80px #00000080,inset 0 1px #ffffff0f;border:1px solid rgba(34,211,238,.2);position:relative;animation:slideUp .4s cubic-bezier(.4,0,.2,1);text-align:center}@keyframes slideUp{0%{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.auth-modal-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border:1px solid 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cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;letter-spacing:.3px}.auth-modal-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s}.auth-modal-btn:hover:before{left:100%}.auth-modal-btn-primary{background:linear-gradient(135deg,#22d3ee40,#06b6d459);color:#22d3ee;border:1px solid rgba(34,211,238,.4);box-shadow:0 0 20px #22d3ee26}.auth-modal-btn-primary:hover{transform:translateY(-2px);background:linear-gradient(135deg,#22d3ee59,#06b6d473);border-color:#22d3eea6;box-shadow:0 0 35px #22d3ee4d,0 8px 24px #0000004d}.auth-modal-btn-secondary{background:#ffffff0a;color:#22d3eecc;border:1px solid rgba(34,211,238,.2)}.auth-modal-btn-secondary:hover{background:#22d3ee14;border-color:#22d3ee66;transform:translateY(-2px);box-shadow:0 0 20px #22d3ee1f}.auth-modal-btn-guest{background:transparent;color:#e2e8f080;border:1px solid rgba(255,255,255,.08)}.auth-modal-btn-guest:hover{background:#ffffff0a;color:#e2e8f0b3;border-color:#ffffff26;transform:translateY(-1px)}@media(max-width:480px){.auth-modal-card{padding:28px 20px;margin:16px;border-radius:20px}.auth-modal-card h2{font-size:24px}}