:root{font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;--bg-color: #000000;--secondary-bg: #121212;--accent-blue: #007AFF;--text-primary: #FFFFFF;--text-secondary: #8E8E93;--card-border: rgba(255, 255, 255, .08);--pill-radius: 30px;--block-radius: 20px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{margin:0;padding:0;background-color:var(--bg-color);color:var(--text-primary);min-height:100vh;display:flex;flex-direction:column}#root{width:100%}.product-card{background:var(--secondary-bg);border-radius:20px;padding:16px;display:flex;flex-direction:column;gap:10px;text-align:left;border:1px solid var(--card-border);transition:transform .2s}.product-card:active{transform:scale(.97)}.product-category{font-size:.65rem;color:var(--accent-blue);text-transform:uppercase;font-weight:800;letter-spacing:1px}.product-name{margin:0;font-size:1rem;font-weight:700;color:var(--text-primary);line-height:1.2}.product-description{margin:0;font-size:.8rem;color:var(--text-secondary);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-footer{display:flex;justify-content:space-between;align-items:center;margin-top:6px}.product-price{font-weight:800;font-size:1.1rem;color:var(--text-primary)}.buy-button{background:var(--accent-blue);color:#000;border:none;padding:8px 16px;border-radius:12px;font-size:.85rem;font-weight:800;cursor:pointer}.catalog-container{width:100%;max-width:800px;display:flex;flex-direction:column;gap:20px}.catalog-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.catalog-title{margin:0;font-size:1.8rem;font-weight:800;color:var(--text-primary)}.back-btn{background:none;border:none;color:var(--accent-blue);font-size:1rem;font-weight:700;cursor:pointer}.category-filter{display:flex;gap:10px;overflow-x:auto;padding:4px 0;scrollbar-width:none}.category-filter::-webkit-scrollbar{display:none}.filter-btn{background:var(--secondary-bg);color:var(--text-secondary);border:1px solid var(--card-border);padding:10px 20px;border-radius:var(--pill-radius);font-size:.85rem;font-weight:700;white-space:nowrap;cursor:pointer;transition:all .2s}.filter-btn.active{background:var(--accent-blue);color:#000;border-color:transparent}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}.loading,.no-products{padding:60px 20px;color:var(--text-secondary);font-size:1rem;font-weight:500}.seller-dashboard{width:100%;max-width:500px;display:flex;flex-direction:column;gap:24px;text-align:left}.dashboard-header{display:flex;align-items:center;justify-content:space-between}.dashboard-header h2{margin:0;font-size:1.8rem;font-weight:800;color:var(--text-primary)}.product-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:8px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}label{font-size:.75rem;color:var(--text-secondary);font-weight:700;text-transform:uppercase;letter-spacing:1px;padding-left:4px}input,textarea,select{background:var(--secondary-bg);border:1.5px solid var(--card-border);color:var(--text-primary);padding:16px;border-radius:16px;font-size:1rem;font-weight:500;transition:border-color .2s}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent-blue)}textarea{min-height:120px;resize:vertical}select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%238E8E93' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:45px}.submit-btn{background:var(--accent-blue);color:#000;border:none;padding:18px;border-radius:var(--pill-radius);font-size:1.1rem;font-weight:800;cursor:pointer;margin-top:12px;box-shadow:0 4px 20px #007aff26}.submit-btn:disabled{opacity:.5;box-shadow:none}.my-products-section{margin-top:20px;display:flex;flex-direction:column;gap:16px}.my-products-section h3{margin:0;font-size:1.2rem;color:var(--text-primary)}.my-products-list{display:flex;flex-direction:column;gap:12px}.my-product-item{background:var(--secondary-bg);padding:16px;border-radius:16px;border:1px solid var(--card-border);display:flex;justify-content:space-between;align-items:center}.my-product-info{display:flex;flex-direction:column;gap:4px}.p-name{font-weight:700;color:var(--text-primary)}.p-price{font-size:.9rem;color:var(--accent-blue);font-weight:600}.delete-btn{background:#ff3b301a;color:#ff3b30;border:1px solid rgba(255,59,48,.2);padding:8px 16px;border-radius:var(--pill-radius);font-size:.8rem;font-weight:700;cursor:pointer;transition:all .2s}.delete-btn:active{background:#ff3b30;color:#fff}.no-items{color:var(--text-secondary);font-size:.9rem;font-style:italic}.tab-bar{position:fixed;bottom:16px;left:16px;right:16px;height:70px;background:#121212f2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;justify-content:space-around;align-items:center;border-radius:24px;border:1px solid var(--card-border);padding-bottom:env(safe-area-inset-bottom);z-index:1000;box-shadow:0 8px 32px #0006}.tab-item{background:none;border:none;display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-secondary);flex:1;padding:8px 0;cursor:pointer;transition:all .2s}.tab-item.active{color:var(--accent-blue);transform:translateY(-2px)}.tab-icon{font-size:1.5rem}.tab-label{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}#root{max-width:1280px;margin:0 auto;padding:1rem;text-align:center}.app-container{display:flex;flex-direction:column;align-items:center;gap:24px;width:100%;padding:16px 16px 100px}.main-header{margin-top:5px;width:100%;display:flex;flex-direction:column;align-items:center;gap:2px}.main-header h1{font-size:1.4rem;font-weight:900;letter-spacing:-.5px;margin:0;color:var(--text-primary);cursor:pointer;text-transform:uppercase}.main-header p{color:var(--text-secondary);font-size:.75rem;margin:0}.card{padding:24px;background:var(--secondary-bg);border-radius:var(--block-radius);border:1px solid var(--card-border);width:100%;max-width:450px;display:flex;flex-direction:column;gap:24px}.home-card{text-align:center}.welcome-emoji{font-size:3rem;display:block;margin-bottom:8px}.stats-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:10px}.stat-item{background:#1a1a1a;padding:16px;border-radius:18px;border:1px solid var(--card-border);display:flex;flex-direction:column;gap:6px}.stat-value{font-size:1.3rem;font-weight:800;color:var(--accent-blue)}.stat-label{font-size:.7rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:1px}button{background-color:var(--accent-blue);color:#000;border:none;padding:16px 32px;border-radius:var(--pill-radius);font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1)}button:active{transform:scale(.96);opacity:.9}