:root{--bg:#f6f7f9;--card:#fff;--ink:#1c2330;--muted:#5d6676;--line:#dde1e8;--accent:#2a6fdb;--err:#b3261e;--ok:#1b7a3d;--code:#eef1f5}
@media (prefers-color-scheme:dark){:root{--bg:#12161d;--card:#1b212b;--ink:#e6e9ef;--muted:#9aa4b5;--line:#2c3441;--accent:#6aa3ff;--err:#ff8a80;--ok:#6fd48f;--code:#232b37}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,sans-serif}
.top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;padding:12px 16px;background:var(--card);border-bottom:1px solid var(--line)}
.brand{font-weight:700;color:var(--ink);text-decoration:none}
nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}nav form{margin:0}
.who{color:var(--muted)}
a{color:var(--accent)}
main{max-width:1100px;margin:0 auto;padding:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:16px;margin-bottom:16px}
.narrow{max-width:420px;margin:32px auto}
h1{font-size:22px;margin:0 0 12px}h2{font-size:18px;margin:16px 0 8px}h3{font-size:15px;margin:16px 0 8px;color:var(--muted)}
label{display:block;margin-bottom:12px;color:var(--muted);font-size:13px}
input,select{display:block;width:100%;margin-top:4px;padding:8px;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px}
button{font:inherit;cursor:pointer}
button.primary{padding:8px 16px;background:var(--accent);color:#fff;border:0;border-radius:6px}
button.link{background:none;border:0;color:var(--accent);padding:0}
.filters{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}.filters label{margin:0;flex:1 1 200px}
.err{color:var(--err)}.ok{color:var(--ok)}.muted{color:var(--muted)}
.tablewrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top;white-space:nowrap}
th{color:var(--muted);font-weight:600}
table.inner{margin:8px 0;min-width:420px}
pre{background:var(--code);padding:12px;border-radius:6px;overflow-x:auto}code{font-family:ui-monospace,monospace;font-size:13px}
.chart{position:relative;width:100%;height:260px}
.chart svg{width:100%;height:100%;display:block}
.chart .grid{stroke:var(--line);stroke-width:1}.chart .axis{fill:var(--muted);font-size:11px}
.chart .line{fill:none;stroke:var(--accent);stroke-width:2;stroke-linejoin:round}
.chart .dot{fill:var(--accent);stroke:var(--card);stroke-width:2}
.chart .cross{stroke:var(--muted);stroke-width:1;stroke-dasharray:3 3}
.tip{position:absolute;pointer-events:none;background:var(--card);border:1px solid var(--line);border-radius:6px;padding:6px 8px;font-size:12px;box-shadow:0 2px 8px #0003;white-space:nowrap}