:root{--bg-primary:#f9f9fb;--bg-card:#fff;--bg-card-hover:#fcfcfc;--bg-secondary:#f2f2f7;--bg-tertiary:#e5e5ea;--text-primary:#1d1d1f;--text-secondary:#86868b;--text-tertiary:#666668;--text-inverse:#fff;--border-color:#e5e5ea;--primary-color:#001aff;--primary-color-hover:#0014cc;--danger-color:#ff3b30;--success-color:#2e7d32;--warning-color:#dd6b20;--shadow-sm:0 4px 12px #00000008;--shadow-md:0 4px 15px #0000000d}*{box-sizing:border-box}html,body,#root{background-color:var(--bg-primary);height:100%;color:var(--text-primary);-ms-overflow-style:none;scrollbar-width:none;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}::-webkit-scrollbar{display:none}.app-container{background-color:var(--bg-primary);flex-direction:column;width:100%;max-width:600px;min-height:100dvh;margin:0 auto;display:flex;position:relative}.app-header{background-color:var(--bg-card);border-bottom:1px solid var(--border-color);z-index:10;justify-content:space-between;align-items:center;padding:16px 20px;display:flex;position:sticky;top:0}.app-header h1{margin:0;font-size:20px;font-weight:700}.input-field{border:1px solid var(--border-color);background-color:var(--bg-card);width:100%;color:var(--text-primary);border-radius:12px;margin-bottom:16px;padding:14px 16px;font-size:16px}.btn-primary{background-color:var(--primary-color);width:100%;color:var(--text-inverse);cursor:pointer;text-align:center;border:none;border-radius:12px;padding:16px;font-size:16px;font-weight:600}.btn-primary:active{background-color:var(--primary-color-hover)}.btn-secondary{background-color:var(--bg-tertiary);width:100%;color:var(--text-primary);cursor:pointer;text-align:center;border:none;border-radius:12px;padding:16px;font-size:16px;font-weight:600}.tables-grid{grid-template-columns:repeat(3,1fr);gap:12px;padding:20px;display:grid}.table-card{background-color:var(--bg-secondary);color:var(--text-primary);aspect-ratio:1;cursor:pointer;box-shadow:var(--shadow-sm);border:none;border-radius:12px;justify-content:center;align-items:center;font-size:24px;font-weight:700;display:flex}.table-card.occupied{background-color:var(--primary-color);color:var(--text-inverse)}.product-item{border-bottom:1px solid var(--border-color);background-color:var(--bg-card);flex-direction:column;padding:16px 20px;display:flex}.product-item h4{margin:0 0 4px;font-size:16px}.product-item p{color:var(--text-secondary);margin:0;font-size:14px}.loading-container{height:100dvh;color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;display:flex}.loading-spinner{border:4px solid var(--border-color);border-top:4px solid var(--primary-color);border-radius:50%;width:40px;height:40px;margin-bottom:16px;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-message{color:var(--danger-color);text-align:center;margin-bottom:16px;font-size:14px}