:root{--ink:#16202e;--muted:#5a6578;--line:#dfe4ec;--accent:#2563eb;--bg:#f4f6fa;--bad:#b42318;--ok:#14703c}
@media (prefers-color-scheme:dark){:root{--ink:#eef1f6;--muted:#a6b0c1;--line:#2f3846;--bg:#10151d}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:520px;margin:6vh auto;padding:0 16px}.card{background:Canvas;color:CanvasText;border:1px solid var(--line);border-radius:14px;padding:28px}
.brand{display:flex;gap:10px;align-items:center;font-weight:800;font-size:18px;margin-bottom:18px}.mark{width:32px;height:32px;border-radius:9px}
h1{font-size:26px;line-height:1.2;margin:0 0 8px}.muted{color:var(--muted)}label{display:block;font-weight:600;margin:16px 0 6px}
.input{width:100%;min-height:48px;font:inherit;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:Canvas;color:CanvasText}.input:focus{outline:3px solid #2563eb55;border-color:var(--accent)}
.mono{font-family:ui-monospace,Menlo,monospace;letter-spacing:.3em;font-size:22px;text-align:center}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:10px;border:1px solid var(--line);background:Canvas;color:CanvasText;font:600 16px/1 inherit;cursor:pointer;text-decoration:none}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.block{width:100%;margin-top:20px}.btn.danger{border-color:var(--bad);color:var(--bad)}
.alert{padding:12px 14px;border-radius:10px;margin:14px 0}.alert.bad{background:#fde8e6;color:#7d1f20}.alert.ok{background:#e1f6e9;color:#0d4a28}
a{color:var(--accent)}.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.meter{display:block;appearance:none;-webkit-appearance:none;width:100%;height:8px;border:0;border-radius:99px;overflow:hidden;background:var(--line);color:var(--accent)}.meter::-webkit-progress-bar{background:var(--line)}.meter::-webkit-progress-value{background:var(--accent);border-radius:99px}.meter::-moz-progress-bar{background:var(--accent);border-radius:99px}
/* console */
main.wide{max-width:980px;margin:3vh auto}.shell{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin:0 0 18px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.shell .brand{margin:0 14px 0 0}.shell a.nav{padding:8px 12px;border-radius:9px;text-decoration:none;color:inherit;font-weight:600}.shell a.nav[aria-current=page]{background:var(--accent);color:#fff}
.shell .sp{flex:1}.shell form{margin:0}.btn.small{min-height:36px;padding:0 14px;font-size:14px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}.tile{border:1px solid var(--line);border-radius:12px;padding:18px;background:Canvas;color:CanvasText}
table.t{border-collapse:collapse;width:100%}table.t th,table.t td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}table.t td.n,table.t th.n{text-align:right;font-variant-numeric:tabular-nums}
.chip{display:inline-block;padding:2px 10px;border-radius:99px;font-size:13px;font-weight:600;border:1px solid var(--line)}.chip.ok{background:#e1f6e9;color:#0d4a28;border-color:transparent}.chip.warn{background:#fff3d6;color:#6a4500;border-color:transparent}.chip.bad{background:#fde8e6;color:#7d1f20;border-color:transparent}
textarea.input{padding:12px 14px;min-height:96px;resize:vertical}.keybox{font:600 15px ui-monospace,Menlo,monospace;word-break:break-all;padding:14px;border:1px dashed var(--accent);border-radius:10px;background:Canvas;color:CanvasText}
@media (max-width:640px){.shell a.nav{padding:8px 9px}}