:root{--brand: #0a7cff;--brand-light: #e8f1ff;--teal: #00a6a6;--teal-light: #e6f7f7;--bg: #f5f5f7;--card: #ffffff;--border: #e5e5ea;--text: #1d1d1f;--text-secondary: #6e6e73;--text-muted: #aeaeb2;--success: #2e7d32;--success-bg: #e8f5e9;--warning: #e65100;--warning-bg: #fff3e0;--danger: #c62828;--danger-bg: #ffebee;--purple: #6a1b9a;--purple-bg: #f3e5f5;--radius: 12px;--radius-sm: 8px}*{margin:0;padding:0;box-sizing:border-box}:focus-visible{outline:2px solid var(--brand);outline-offset:2px}:focus:not(:focus-visible){outline:none}body{font-family:system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{background:var(--card);border-radius:var(--radius);padding:48px;box-shadow:0 4px 24px #00000014;width:100%;max-width:400px;display:flex;flex-direction:column;gap:16px}.login-card h1{font-size:24px;text-align:center}.login-subtitle{text-align:center;color:var(--text-secondary);font-size:14px}.login-card input{padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;outline:none;transition:border-color .2s}.login-card input:focus{border-color:var(--brand)}.btn-login{padding:12px;background:var(--brand);color:#fff;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;transition:background .2s}.btn-login:hover{background:#0066d6}.error-msg{background:var(--danger-bg);color:var(--danger);padding:10px;border-radius:var(--radius-sm);font-size:13px;text-align:center}.top-bar{background:var(--card);border-bottom:1px solid var(--border);padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.top-bar-left{display:flex;align-items:center;gap:16px}.logo{font-size:18px;font-weight:700;color:var(--brand)}.admin-email{font-size:13px;color:var(--text-secondary)}.top-bar-right{display:flex;gap:8px}.btn-icon{width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:var(--card);cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;transition:all .2s}.btn-icon:hover{background:var(--bg);border-color:var(--brand)}.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:24px}.metric-card{background:var(--card);border-radius:var(--radius);padding:20px 24px;border:1px solid var(--border);transition:transform .2s}.metric-card:hover{transform:translateY(-2px)}.metric-value{font-size:28px;font-weight:700}.metric-label{font-size:13px;color:var(--text-secondary);margin-top:4px}.metric-sub{font-size:12px;color:var(--text-muted);margin-top:2px}.user-section{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:0 24px 24px}.user-list-panel,.user-detail-panel{background:var(--card);border-radius:var(--radius);padding:20px;border:1px solid var(--border)}.user-list-panel h2,.user-detail-panel h2{font-size:16px;margin-bottom:16px}.filters{display:flex;gap:8px;margin-bottom:12px}.filters input,.filters select{padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;outline:none;flex:1}.filters input:focus,.filters select:focus{border-color:var(--brand)}.user-list{max-height:400px;overflow-y:auto}.user-item{padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:background .2s;border:1px solid transparent}.user-item:hover{background:var(--bg)}.user-item.active{background:var(--brand-light);border-color:var(--brand)}.user-email{font-size:14px;font-weight:500}.user-meta{display:flex;align-items:center;gap:8px;margin-top:4px}.user-date{font-size:11px;color:var(--text-muted)}.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.badge-free{background:var(--brand-light);color:var(--brand)}.badge-pro{background:var(--warning-bg);color:var(--warning)}.badge-master{background:var(--purple-bg);color:var(--purple)}.badge-pending{background:var(--warning-bg);color:var(--warning)}.badge-completed{background:var(--success-bg);color:var(--success)}.badge-failed{background:var(--danger-bg);color:var(--danger)}.detail-kv{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}.detail-kv>div{display:flex;flex-direction:column;gap:2px}.kv-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.op-section{margin-bottom:16px;padding-top:16px;border-top:1px solid var(--border)}.op-section h3{font-size:13px;color:var(--text-secondary);margin-bottom:8px}.op-row{display:flex;gap:8px;align-items:center}.op-row input,.op-row select{padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;outline:none;flex:1;min-width:0}.op-row button{padding:8px 16px;background:var(--brand);color:#fff;border:none;border-radius:var(--radius-sm);font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap}.op-row button:hover{background:#0066d6}.json-preview{background:var(--bg);padding:10px;border-radius:var(--radius-sm);font-family:monospace;font-size:11px;overflow-x:auto;max-height:150px;overflow-y:auto;white-space:pre-wrap;word-break:break-all}.empty-state{padding:40px;text-align:center;color:var(--text-muted);font-size:14px}.purchases-section{padding:0 24px 24px}.purchases-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.purchases-header h2{font-size:16px}.purchases-header select{padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px}.purchases-table{width:100%;background:var(--card);border-radius:var(--radius);border:1px solid var(--border);border-collapse:collapse;overflow:hidden}.purchases-table th{background:var(--bg);padding:10px 16px;font-size:12px;text-align:left;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.purchases-table td{padding:10px 16px;font-size:13px;border-top:1px solid var(--border)}.btn-sm{padding:4px 10px;border-radius:6px;font-size:11px;font-weight:600;border:none;cursor:pointer;margin-right:4px}.btn-success{background:var(--success-bg);color:var(--success)}.btn-danger{background:var(--danger-bg);color:var(--danger)}.btn-success:hover{background:#c8e6c9}.btn-danger:hover{background:#ffcdd2}.pagination{display:flex;align-items:center;justify-content:center;gap:12px;padding:12px 0;font-size:12px;color:var(--text-secondary)}.pagination button{padding:6px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);font-size:12px;cursor:pointer}.pagination button:disabled{opacity:.4;cursor:default}.pagination button:not(:disabled):hover{border-color:var(--brand)}@media(max-width:1024px){.metrics-grid{grid-template-columns:repeat(2,1fr)}.user-section{grid-template-columns:1fr}}@media(max-width:768px){.metrics-grid{grid-template-columns:1fr}.purchases-table{display:block;overflow-x:auto}}