:root{--primary: #2563eb;--primary-hover: #1d4ed8;--success: #10b981;--danger: #ef4444;--warning: #f59e0b;--secondary: #6b7280;--background: #f9fafb;--card: #ffffff;--border: #e5e7eb;--text: #111827;--text-secondary: #6b7280}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background);color:var(--text)}#root{min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:20px}.btn{padding:10px 20px;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-hover)}.btn-success{background-color:var(--success);color:#fff}.btn-danger{background-color:var(--danger);color:#fff}.btn-secondary{background-color:var(--secondary);color:#fff}.card{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:20px}.card-header{font-size:18px;font-weight:600;margin-bottom:15px}.badge{display:inline-block;padding:4px 12px;border-radius:12px;font-size:12px;font-weight:500}.badge-success{background-color:#d1fae5;color:#065f46}.badge-warning{background-color:#fed7aa;color:#92400e}.badge-danger{background-color:#fee2e2;color:#991b1b}.badge-secondary{background-color:#e5e7eb;color:#374151}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px;text-align:left;border-bottom:1px solid var(--border)}.table th{background-color:var(--background);font-weight:600;font-size:14px}.form-group{margin-bottom:15px}.form-label{display:block;margin-bottom:5px;font-weight:500;font-size:14px}.form-input,.form-select,.form-textarea{width:100%;padding:10px;border:1px solid var(--border);border-radius:6px;font-size:14px}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary)}.loading{text-align:center;padding:40px;color:var(--text-secondary)}.error{color:var(--danger);padding:10px;background-color:#fee2e2;border-radius:6px;margin-bottom:15px}.success{color:var(--success);padding:10px;background-color:#d1fae5;border-radius:6px;margin-bottom:15px}.spinner{border:3px solid rgba(0,0,0,.1);border-left-color:var(--primary);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:0 auto}@keyframes spin{to{transform:rotate(360deg)}}.alert{padding:12px 20px;border-radius:6px;margin-bottom:20px;font-size:14px}.alert-error{background-color:#fee2e2;color:#991b1b;border:1px solid #fca5a5}.alert-success{background-color:#d1fae5;color:#065f46;border:1px solid #6ee7b7}.alert-warning{background-color:#fed7aa;color:#92400e;border:1px solid #fdba74}.alert-info{background-color:#dbeafe;color:#1e40af;border:1px solid #93c5fd}.container h1{font-size:32px;font-weight:700;margin-bottom:8px}.container h2{font-size:24px;font-weight:600;margin-bottom:16px}.container h3{font-size:18px;font-weight:600;margin-bottom:12px}.btn+.btn{margin-left:0}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:disabled:hover{opacity:.5}.card-body{padding:20px}.desktop-pool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}