:root{--bg:#f5f5f7;--card:#fff;--ink:#1d1d1f;--quiet:#5f6368;--line:#e3e3e8;--red:#b3261e;--green:#1e7b34;--gold:#8a5a00;--accent:#1d1d1f;color-scheme:light}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,"PingFang SC","Hiragino Sans","Malgun Gothic",sans-serif}
a{color:inherit}main{max-width:1180px;margin:0 auto;padding:24px 20px 64px}main.narrow{max-width:440px;padding-top:12vh}
.top{display:flex;align-items:center;gap:24px;flex-wrap:wrap;padding:12px 20px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:600}.brand span{color:var(--quiet);font-weight:500}.brand.solo{justify-content:center;margin-bottom:24px}
nav{display:flex;gap:4px;flex-wrap:wrap}nav a{padding:6px 12px;border-radius:8px;text-decoration:none;color:var(--quiet)}nav a[aria-current]{background:var(--bg);color:var(--ink);font-weight:600}
.who{margin-left:auto;display:flex;gap:12px;align-items:center;color:var(--quiet);font-size:13px}
h1{font-size:28px;margin:8px 0 20px;letter-spacing:-.01em}h2{font-size:17px;margin:0 0 12px}
.card{background:var(--card);border-radius:14px;padding:20px;margin-bottom:20px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:20px}
.stat{background:var(--card);border-radius:14px;padding:18px 20px}.stat b{display:block;font-size:30px;font-weight:600;letter-spacing:-.02em}.stat span{color:var(--quiet);font-size:13px}
.scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:14px}th{text-align:left;color:var(--quiet);font-weight:500;font-size:12px;padding:8px 10px;border-bottom:1px solid var(--line)}
td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}tr:last-child td{border-bottom:0}
.mono,code{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-size:13px}.device-title{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;letter-spacing:.04em}
.badge{display:inline-block;padding:1px 8px;border-radius:999px;font-size:12px;font-weight:600;background:#eceef1;color:var(--quiet)}.badge.green{background:#e3f3e6;color:var(--green)}.badge.red{background:#fbe5e3;color:var(--red)}.badge.gold{background:#fbf0d9;color:var(--gold)}
form{margin:0}.row{display:flex;gap:12px;flex-wrap:wrap;align-items:end}label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--quiet)}
input,select,textarea{font:inherit;color:var(--ink);padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;min-width:0}input[type=checkbox]{width:auto}
button{font:inherit;font-weight:600;padding:8px 16px;border-radius:8px;border:0;background:var(--accent);color:#fff;cursor:pointer}button.plain{background:var(--bg);color:var(--ink)}
button.danger{background:none;color:var(--red);padding:8px 0}button.link{background:none;color:var(--quiet);font-weight:500;padding:0;text-decoration:underline}
.stack>*+*{margin-top:12px}.quiet{color:var(--quiet)}.notice{padding:10px 14px;border-radius:10px;background:#e3f3e6;color:var(--green)}.notice.bad{background:#fbe5e3;color:var(--red)}
.key{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-size:20px;letter-spacing:.06em;padding:12px 16px;background:var(--bg);border-radius:10px;display:inline-block;user-select:all}
.warn{color:var(--gold);font-size:13px}dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 20px;margin:0}dt{color:var(--quiet)}dd{margin:0}
.qr svg{width:180px;height:180px}.actions{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
@media(max-width:640px){.who{margin-left:0}main{padding:16px}}