:root{--color-primary:#1a73e8;--color-primary-light:#e8f0fe;--color-primary-dark:#1557b0;--color-success:#0d9488;--color-success-light:#ccfbf1;--color-warning:#f59e0b;--color-warning-light:#fef3c7;--color-danger:#dc2626;--color-danger-light:#fee2e2;--color-text:#1f2937;--color-text-secondary:#6b7280;--color-text-muted:#9ca3af;--color-bg:#f9fafb;--color-bg-white:#fff;--color-border:#e5e7eb;--color-border-light:#f3f4f6;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 6px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;--sidebar-width:240px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.6}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);color:#e2e8f0;z-index:100;background:#0f172a;flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.merchant-sidebar{background:#1e293b}.sidebar-brand{border-bottom:1px solid #1e293b;padding:20px}.merchant-sidebar .sidebar-brand{border-bottom-color:#334155}.sidebar-brand h2{color:#fff;font-size:18px;font-weight:700}.sidebar-nav{flex:1;padding:12px 0;overflow-y:auto}.nav-item{color:#94a3b8;cursor:pointer;padding:10px 20px;font-size:14px;text-decoration:none;transition:all .15s;display:block}.nav-item:hover{color:#e2e8f0;background:#1e293b;text-decoration:none}.merchant-sidebar .nav-item:hover{background:#334155}.nav-item.active{background:var(--color-primary);color:#fff}.main-area{margin-left:var(--sidebar-width);flex-direction:column;flex:1;min-width:0;display:flex}.topbar{background:var(--color-bg-white);border-bottom:1px solid var(--color-border);z-index:50;justify-content:space-between;align-items:center;height:56px;padding:0 24px;display:flex;position:sticky;top:0}.topbar-title{text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:12px;min-width:0;font-size:16px;font-weight:600;display:flex;overflow:hidden}.topbar-right{justify-content:flex-end;align-items:center;gap:12px;display:flex}.platform-switcher{border:1px solid var(--color-border);border-radius:var(--radius-sm);min-width:0;height:34px;box-shadow:var(--shadow-sm);background:#f8fafc;flex:0 auto;align-items:center;gap:6px;padding:0 8px;display:inline-flex}.platform-switcher:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.platform-switcher__caption{color:var(--color-text-muted);white-space:nowrap;font-size:12px;font-weight:600}.platform-switcher select{width:18vw;min-width:130px;max-width:200px;height:30px;color:var(--color-text);cursor:pointer;text-overflow:ellipsis;white-space:nowrap;background:0 0;border:0;padding:4px 28px 4px 8px;font-size:13px;font-weight:500;overflow:hidden}.platform-switcher select:focus{outline:none}.user-info{color:var(--color-text-secondary);font-size:13px}.content{flex:1;padding:24px}.page{flex-direction:column;gap:20px;display:flex}.page__header{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.page__title{color:var(--color-text);font-size:22px;font-weight:700}.page__subtitle{color:var(--color-text-secondary);margin-top:4px;font-size:13px}.page__actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.card-panel{background:var(--color-bg-white);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:20px}.card-panel+.card-panel{margin-top:4px}.card-panel__header{border-bottom:1px solid var(--color-border-light);justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;padding-bottom:12px;display:flex}.card-panel__title{color:var(--color-text);font-size:16px;font-weight:600}.metrics-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.metric-card{background:var(--color-bg-white);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:20px}.metric-card__label{color:var(--color-text-secondary);margin-bottom:6px;font-size:13px}.metric-card__value{color:var(--color-text);font-size:28px;font-weight:700;line-height:1.25}.metric-card__hint{color:var(--color-text-muted);margin-top:8px;font-size:12px}.table-wrapper{overflow-x:auto}.table-wrapper>table{width:max-content;min-width:100%}.data-table{border-collapse:collapse;width:100%;font-size:14px}.data-table th{text-align:left;background:var(--color-border-light);color:var(--color-text-secondary);border-bottom:1px solid var(--color-border);white-space:nowrap;padding:10px 12px;font-size:13px;font-weight:600}.data-table td{border-bottom:1px solid var(--color-border-light);padding:10px 12px}.data-table tbody tr:hover td{background:#f8fafc}.data-table td code{background:var(--color-border-light);border-radius:4px;padding:2px 6px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px}.data-table--compact th,.data-table--compact td{padding:8px 10px;font-size:13px}.data-table td:last-child{white-space:nowrap}.action-row{white-space:nowrap;flex-wrap:nowrap;gap:4px;display:inline-flex}.action-row>.btn{white-space:nowrap}input[type=checkbox],input[type=radio]{min-height:auto}.checkbox-inline{color:var(--color-text-secondary);align-items:center;gap:6px;font-size:13px;line-height:1.4;display:inline-flex}.checkbox-inline input{flex:none;width:14px;height:14px}.btn{border-radius:var(--radius-sm);cursor:pointer;border:none;align-items:center;gap:6px;padding:8px 16px;font-family:inherit;font-size:14px;font-weight:500;line-height:1.4;transition:all .15s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-success{background:var(--color-success);color:#fff}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:#b91c1c}.btn-danger-outline{color:var(--color-danger);border:1px solid var(--color-danger);background:0 0}.btn-danger-outline:hover:not(:disabled){background:#fef2f2}.btn-outline{border:1px solid var(--color-border);color:var(--color-text);background:0 0}.btn-outline:hover:not(:disabled){background:var(--color-border-light)}.btn-sm{padding:4px 10px;font-size:12px}.btn-lg{padding:12px 24px;font-size:16px}.badge{border-radius:10px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-block}.badge-success{background:var(--color-success-light);color:var(--color-success)}.badge-warning{background:var(--color-warning-light);color:#92400e}.badge-danger{background:var(--color-danger-light);color:var(--color-danger)}.badge-info{background:var(--color-primary-light);color:var(--color-primary)}.badge-muted{background:var(--color-border-light);color:var(--color-text-muted)}.pagination{justify-content:center;align-items:center;gap:8px;margin-top:16px;display:flex}.pagination button{border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-white);cursor:pointer;color:var(--color-text);padding:6px 12px;font-size:13px}.pagination button:disabled{opacity:.4;cursor:not-allowed}.pagination button.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.pagination .page-info{color:var(--color-text-secondary);font-size:13px}.field{color:var(--color-text-secondary);flex-direction:column;gap:4px;margin-bottom:16px;font-size:13px;font-weight:500;display:flex}.field input,.field select,.field textarea{border:1px solid var(--color-border);border-radius:var(--radius-sm);width:100%;color:var(--color-text);background:var(--color-bg-white);padding:8px 12px;font-family:inherit;font-size:14px}.field textarea{resize:vertical;min-height:80px}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light);outline:none}.field-row{gap:12px;display:flex}.field-row>*{flex:1}.card-panel:has(>.data-table){overflow-x:auto}.filter-strip{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.filter-strip>input,.filter-strip>select{min-width:160px}.filter-strip select,.filter-strip input{border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);background:var(--color-bg-white);padding:6px 12px;font-family:inherit;font-size:13px}.filter-strip select:focus,.filter-strip input:focus{border-color:var(--color-primary);outline:none}.modal-overlay{z-index:1000;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--color-bg-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:90%;max-width:640px;max-height:80vh;padding:24px;overflow-y:auto}.modal-header{margin-bottom:16px;font-size:18px;font-weight:600}.modal-footer{border-top:1px solid var(--color-border-light);justify-content:flex-end;gap:8px;margin-top:20px;padding-top:16px;display:flex}.tabs{border-bottom:2px solid var(--color-border);gap:0;margin-bottom:20px;display:flex}.tab{color:var(--color-text-secondary);cursor:pointer;border-bottom:2px solid #0000;margin-bottom:-2px;padding:10px 20px;font-size:14px;font-weight:500;transition:all .15s}.tab:hover{color:var(--color-text)}.tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.toast-container{z-index:9999;flex-direction:column;gap:8px;display:flex;position:fixed;top:20px;right:20px}.toast{border-radius:var(--radius-sm);color:#fff;box-shadow:var(--shadow-lg);padding:12px 20px;font-size:14px;animation:.3s slideIn}.toast-success{background:var(--color-success)}.toast-error{background:var(--color-danger)}.toast-warning{background:var(--color-warning)}@keyframes slideIn{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.empty-state{text-align:center;color:var(--color-text-muted);padding:40px 20px}.empty-state .empty-icon{margin-bottom:12px;font-size:48px}.empty-state .empty-text{font-size:14px}.loading{color:var(--color-text-muted);justify-content:center;align-items:center;padding:40px;display:flex}.status-dot{border-radius:4px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-block}.status-dot:before{content:"";vertical-align:middle;border-radius:50%;width:6px;height:6px;margin-right:4px;display:inline-block}.status-dot.success{color:#166534;background:#dcfce7}.status-dot.success:before{background:#16a34a}.status-dot.failed{color:#991b1b;background:#fee2e2}.status-dot.failed:before{background:#dc2626}.status-dot.terminated{color:#92400e;background:#fef3c7}.status-dot.terminated:before{background:#d97706}.status-dot.refunded{color:#1e40af;background:#dbeafe}.status-dot.refunded:before{background:#2563eb}.status-dot.pending{color:#92400e;background:#fef3c7}.status-dot.pending:before{background:#ca8a04}.status-dot.unused{color:#374151;background:#f3f4f6}.status-dot.unused:before{background:#6b7280}.status-dot.frozen{color:#1e40af;background:#dbeafe}.status-dot.frozen:before{background:#2563eb}.status-dot.void{color:#991b1b;background:#fee2e2}.status-dot.void:before{background:#dc2626}.status-dot.exception{color:#9d174d;background:#fce7f3}.status-dot.exception:before{background:#db2777}.status-dot.active{color:#166534;background:#dcfce7}.status-dot.active:before{background:#16a34a}.status-dot.disabled{color:#6b7280;background:#f3f4f6}.status-dot.disabled:before{background:#9ca3af}.spinner{border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;width:24px;height:24px;margin-right:8px;animation:.6s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.login-page{background:linear-gradient(135deg,#667eea,#764ba2);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:var(--color-bg-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:400px;max-width:90%;padding:40px}.login-title{text-align:center;margin-bottom:8px;font-size:24px;font-weight:700}.login-subtitle{color:var(--color-text-secondary);text-align:center;margin-bottom:24px;font-size:14px}.login-error{background:var(--color-danger-light);color:var(--color-danger);border-radius:var(--radius-sm);margin-bottom:16px;padding:8px 12px;font-size:13px}.redeem-page{background:linear-gradient(135deg,#1a1a2e,#16213e,#0f3460);justify-content:center;align-items:center;min-height:100vh;display:flex}.redeem-card{background:var(--color-bg-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:420px;max-width:90%;padding:40px}.redeem-card h3{text-align:center;margin-bottom:24px;font-size:20px;font-weight:700}.detail-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;display:grid}.detail-item{border:1px solid var(--color-border-light);border-radius:var(--radius-sm);background:#f8fafc;min-width:0;padding:12px}.detail-item.full-width{grid-column:1/-1}.detail-label{color:var(--color-text-secondary);margin-bottom:4px;font-size:12px}.detail-value{color:var(--color-text);overflow-wrap:anywhere;font-size:14px}.alert{border-radius:var(--radius-sm);margin-bottom:12px;padding:10px 12px;font-size:13px}.alert-success{background:var(--color-success-light);color:var(--color-success)}.alert-error{background:var(--color-danger-light);color:var(--color-danger)}.hamburger{cursor:pointer;background:0 0;border:none;flex-direction:column;gap:5px;margin-right:12px;padding:4px;display:none}.hamburger span{background:var(--color-text);border-radius:2px;width:22px;height:2px;transition:all .3s;display:block}.sidebar-overlay{display:none}@media (width<=768px){.hamburger{display:flex}.sidebar{width:280px;transition:transform .3s;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-overlay{z-index:99;background:#0006;display:block;position:fixed;inset:0}.main-area{margin-left:0}.topbar{padding:0 16px}.content{padding:16px}.metrics-grid{grid-template-columns:repeat(2,1fr);gap:12px}.field-row{flex-direction:column}.platform-switcher__caption{display:none}.platform-switcher select{width:34vw;min-width:112px;max-width:164px}}