:root{--bg: #f5f6fa;--card: #ffffff;--ink: #1c2333;--muted: #6b7280;--line: #e5e7eb;--accent: #2563eb;--ok: #16a34a;--warn: #d97706;--err: #dc2626}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.45 -apple-system,Segoe UI,Roboto,Arial,sans-serif}.container{max-width:1100px;margin:0 auto;padding:20px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px;flex-wrap:wrap}.topbar h1{font-size:22px;margin:0}.muted{color:var(--muted);font-size:13px}.nav{display:flex;gap:6px;margin-bottom:18px;flex-wrap:wrap}.nav button{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:8px 14px;cursor:pointer;font-size:14px}.nav button.on{background:var(--accent);border-color:var(--accent);color:#fff}.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:14px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:14px}.stat .num{font-size:24px;font-weight:700}.stat .label{color:var(--muted);font-size:13px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}button,.btn{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 12px;cursor:pointer;font-size:14px}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.danger{color:var(--err);border-color:#fecaca}button:disabled{opacity:.5;cursor:default}button.secondary{background:transparent}input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-size:14px;margin-bottom:8px;background:#fff}label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}.badge.active,.badge.sent,.badge.succeeded,.badge.paid,.badge.received{background:#dcfce7;color:var(--ok)}.badge.pending,.badge.connecting,.badge.queued,.badge.issued{background:#fef3c7;color:var(--warn)}.badge.qr_ready,.badge.code_required{background:#dbeafe;color:var(--accent)}.badge.error,.badge.failed,.badge.canceled{background:#fee2e2;color:var(--err)}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.right{margin-left:auto}.error-text{color:var(--err);margin:6px 0}.ok-text{color:var(--ok);margin:6px 0;word-break:break-all}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;display:flex;align-items:center;justify-content:center;z-index:10}.modal{background:#fff;border-radius:12px;padding:20px;min-width:360px;max-width:560px;max-height:90vh;overflow:auto}.qr-img{width:280px;height:280px;object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff}.switch{position:relative;width:40px;height:22px;display:inline-block}.switch input{opacity:0;width:0;height:0}.switch span{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background:#cbd5e1;border-radius:999px;transition:.2s}.switch span:before{content:"";position:absolute;height:16px;width:16px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}.switch input:checked+span{background:var(--ok)}.switch input:checked+span:before{transform:translate(18px)}.checkbox-line{display:flex;gap:8px;align-items:center;font-size:14px;margin:4px 0}.checkbox-line input{width:auto;margin:0}