:root{--bg:#dbeaf8;--card:#fff;--ink:#12263a;--mute:#5b6b7b;--line:#c9d8e6;--navy:#123d5c;--navy2:#0d2e46;--ok:#166534;--err:#b91c1c;--warn:#92400e;--soft:#eef5fb;color-scheme:light}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 "Segoe UI",system-ui,-apple-system,Roboto,sans-serif}
a{color:var(--navy)}
.wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px 16px}
.card{background:var(--card);width:100%;max-width:400px;border-radius:14px;box-shadow:0 10px 40px rgba(18,61,92,.14);padding:28px 28px 22px}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.brand img{width:52px;height:52px;border-radius:50%;border:2px solid var(--navy)}
.brand h1{font-size:20px;margin:0;line-height:1.2}
.brand small{display:block;color:var(--mute);font-size:13px;font-weight:400}
label{display:block;font-size:13px;font-weight:600;margin:12px 0 4px}
input,select{width:100%;font:inherit;padding:9px 11px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
input:focus,select:focus,button:focus-visible,a:focus-visible{outline:3px solid #7fb3e0;outline-offset:1px;border-color:var(--navy)}
input.code{font-size:22px;letter-spacing:6px;text-align:center;font-variant-numeric:tabular-nums}
button{font:inherit;font-weight:600;border-radius:8px;padding:9px 16px;cursor:pointer;border:1px solid var(--navy);background:#fff;color:var(--navy)}
button.main{background:var(--navy);color:#fff;width:100%;margin-top:18px;padding:11px}
button.main:hover{background:var(--navy2)}
button:disabled{opacity:.55;cursor:default}
.err{color:var(--err);font-size:14px;min-height:20px;margin-top:10px}
.ok{color:var(--ok)}
.note{color:var(--mute);font-size:13px}
.step{background:var(--soft);border-radius:10px;padding:12px 14px;margin-top:14px;font-size:14px}
.step ol{margin:6px 0 0;padding-left:20px}
.qr{display:flex;justify-content:center;margin:10px 0}
.qr svg{width:180px;height:180px;image-rendering:pixelated}
.key{font:600 15px/1.4 ui-monospace,Consolas,monospace;letter-spacing:1px;word-break:break-all;background:#fff;border:1px dashed var(--line);border-radius:6px;padding:6px 8px;text-align:center}
.foot{text-align:center;color:var(--mute);font-size:12.5px;margin-top:16px}
/* list pages */
.page{max-width:1000px;margin:0 auto;padding:20px 16px 40px}
.top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.top img{width:40px;height:40px;border-radius:50%;border:2px solid var(--navy)}
.top h1{font-size:19px;margin:0;flex:1}
.panel{background:#fff;border-radius:12px;box-shadow:0 4px 18px rgba(18,61,92,.08);padding:16px 18px;margin-bottom:16px}
.panel h2{font-size:16px;margin:0 0 10px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:4px 14px}
.grid button{margin-top:28px}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:7px 8px;border-bottom:1px solid #e3ecf4;vertical-align:top}
th{font-size:12.5px;color:var(--mute);font-weight:600}
td .acts{display:flex;gap:6px;flex-wrap:wrap}
td button{padding:4px 10px;font-size:13px}
.pill{display:inline-block;border-radius:20px;padding:1px 9px;font-size:12px;font-weight:600;background:#e8f1e9;color:var(--ok)}
.pill.off{background:#fde8e8;color:var(--err)}
.pill.warn{background:#fdf1dc;color:var(--warn)}
.scroll{overflow-x:auto}
@media (max-width:600px){.card{padding:22px 18px}th:nth-child(n+5),td:nth-child(n+5){display:none}}