:root{--bg:#f5f6f4;--card:#fff;--ink:#1e2935;--muted:#667085;--line:#e5e7eb;--accent:#7a1f8a;--danger:#b42318}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.wrap{max-width:1120px;margin:0 auto;padding:28px}.top{display:flex;gap:18px;align-items:center;justify-content:space-between;margin-bottom:24px}
.brand{font-size:24px;font-weight:800}.nav a{margin-left:14px;color:var(--ink);text-decoration:none}
.card{background:var(--card);border-radius:16px;padding:24px;box-shadow:0 8px 30px rgba(0,0,0,.05);margin-bottom:20px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.stat{padding:18px;border:1px solid var(--line);border-radius:12px}.stat b{display:block;font-size:26px}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:13px;color:var(--muted)}
a{color:#5e1870}.btn{display:inline-block;border:0;border-radius:9px;padding:10px 14px;background:var(--ink);color:#fff;text-decoration:none;cursor:pointer}.btn.alt{background:#fff;color:var(--ink);border:1px solid var(--line)}.btn.danger{background:var(--danger)}
input,select{width:100%;padding:11px 12px;border:1px solid #cfd4dc;border-radius:9px;background:#fff;font:inherit}label{display:block;font-weight:650;margin:14px 0 6px}.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.msg{padding:12px 14px;border-radius:9px;background:#eef7ee;margin-bottom:16px}.error{background:#fff0f0;color:#8a1c1c}
.small{font-size:13px;color:var(--muted)}code{background:#f0f2f4;padding:2px 5px;border-radius:5px}.qrbox{display:flex;gap:24px;align-items:flex-start}.qrbox img{width:220px;height:220px;background:#fff;border:1px solid var(--line)}
@media(max-width:760px){.grid,.row{grid-template-columns:1fr}.top,.qrbox{display:block}.nav{margin-top:10px}table{font-size:13px}.wrap{padding:16px}}