:root {
  --bg: #f5f6f8; --card: #fff; --text: #1c1e21; --muted: #6b7280; --line: #e5e7eb;
  --primary: #2563eb; --primary-text: #fff; --ok: #15803d; --ok-bg: #dcfce7;
  --warn: #a16207; --warn-bg: #fef3c7; --err: #b91c1c; --err-bg: #fee2e2; --chip: #f1f5f9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317; --card: #1a1d23; --text: #e5e7eb; --muted: #9ca3af; --line: #2b2f37;
    --primary: #3b82f6; --ok: #4ade80; --ok-bg: #14301f; --warn: #facc15; --warn-bg: #3a300c;
    --err: #f87171; --err-bg: #3b1515; --chip: #23272f;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.35rem; margin: 0 0 .8rem; }
h2 { font-size: 1.1rem; margin: 0 0 .7rem; }
h3 { font-size: 1rem; margin: 1.2rem 0 .5rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
.err { color: var(--err); }
.nowrap { white-space: nowrap; }

header.top { display: flex; align-items: center; gap: 1rem; padding: .6rem 1rem; background: var(--card);
  border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; flex-wrap: wrap; }
header .brand { font-weight: 600; }
header nav { display: flex; gap: .2rem; flex-wrap: wrap; flex: 1; }
header nav a { padding: .3rem .6rem; border-radius: 6px; color: var(--text); }
header nav a.on { background: var(--chip); font-weight: 600; }
header nav a:hover { text-decoration: none; background: var(--chip); }
header .logout { margin-left: auto; }

main { max-width: 1150px; margin: 1.2rem auto; padding: 0 16px; }
main.narrow { max-width: 420px; margin-top: 12vh; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1.1rem 1.2rem; margin-bottom: 1rem; }
.card.login h1 { text-align: center; }

.flash { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.err { background: var(--err-bg); color: var(--err); }

.row-between { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: .6rem; }
.row-between h1, .row-between h2 { margin: 0; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: .85rem; }
table.kv th { width: 9rem; }
.card { overflow-x: auto; }

input, select, textarea, button, .btn { font: inherit; color: inherit; }
input, select, textarea { width: 100%; padding: .5rem .6rem; border: 1px solid var(--line); border-radius: 7px; background: var(--bg); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
button, .btn { display: inline-block; padding: .45rem .9rem; border: 1px solid var(--line); border-radius: 7px; background: var(--card); cursor: pointer; white-space: nowrap; }
button:hover, .btn:hover { text-decoration: none; filter: brightness(.97); }
button.primary, .btn.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
button.danger { color: var(--err); }
button.link { border: 0; background: none; padding: 0; color: var(--primary); }
button.link.danger { color: var(--err); }

form.grid-form { display: grid; gap: .9rem; max-width: 720px; }
form.grid-form label { display: grid; gap: .3rem; }
form.inline-form, .inline-form { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
form.inline-form input { width: auto; flex: 1 1 10rem; }
form.inline { display: inline; margin-left: .6rem; }
.login form { display: grid; gap: .9rem; }
.login label { display: grid; gap: .3rem; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
@media (max-width: 640px) { .two { grid-template-columns: 1fr; } }
fieldset { border: 1px solid var(--line); border-radius: 8px; padding: .6rem .9rem .9rem; display: grid; gap: .5rem; }
legend { color: var(--muted); font-size: .9rem; padding: 0 .3rem; }
label.radio, label.check { display: flex !important; align-items: center; gap: .5rem; }
label.radio input, label.check input { width: auto; }
.actions { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }
.actions form.inline-form input { flex: 0 1 12rem; }

.badge { display: inline-block; padding: .05rem .5rem; border-radius: 999px; font-size: .8rem; background: var(--chip); color: var(--muted); }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.err { background: var(--err-bg); color: var(--err); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin: .4rem 0 1rem; }
.stat .label { color: var(--muted); font-size: .85rem; }
.stat .value { font-size: 1.6rem; font-weight: 600; margin: .1rem 0 .3rem; }
.meter { height: 8px; background: var(--chip); border-radius: 999px; overflow: hidden; margin: .3rem 0; }
.meter.sm { height: 5px; max-width: 160px; }
.meter span { display: block; height: 100%; width: var(--w); background: var(--primary); }

.copy { display: flex; gap: .5rem; margin: .5rem 0 .8rem; }
.copy input { font-family: ui-monospace, Menlo, monospace; font-size: .85rem; }
details.help { margin: .5rem 0 1rem; }
details.help summary { cursor: pointer; color: var(--primary); }
details.help li { margin: .3rem 0; }

.bars { display: flex; align-items: flex-end; gap: 6px; height: 140px; padding-top: .5rem; }
.bar { flex: 1; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; }
.bar span { width: 100%; height: var(--h); min-height: 2px; background: var(--primary); border-radius: 4px 4px 0 0; }
.bar em { font-style: normal; font-size: .7rem; color: var(--muted); margin-top: .2rem; }

pre.log { background: #0b0d10; color: #d1d5db; padding: .8rem; border-radius: 8px; max-height: 420px; overflow: auto; font-size: .82rem; white-space: pre-wrap; }

.live-status { margin-left: auto; border: 0; background: none; padding: .2rem .5rem; font-size: .8rem; color: var(--muted); border-radius: 6px; }
.live-status.on { color: var(--ok); }
.live-status.err { color: var(--err); }
.live-status:hover { background: var(--chip); }
header .live-status + .logout { margin-left: .5rem; }
.flash.notice { background: var(--warn-bg); color: var(--warn); }
.tabs { display: flex; gap: .3rem; flex-wrap: wrap; margin: .2rem 0 .8rem; }
.tabs a { padding: .3rem .7rem; border-radius: 999px; background: var(--chip); color: var(--text); font-size: .88rem; }
.tabs a.on { background: var(--primary); color: var(--primary-text); }
.tabs a:hover { text-decoration: none; filter: brightness(.96); }
.tabs .count { opacity: .7; margin-left: .2rem; }
.batch-bar { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; padding: .5rem .6rem; background: var(--chip); border-radius: 8px; margin-bottom: .6rem; }
.batch-bar select, .batch-bar input { width: auto; }
.batch-bar .short { width: 5rem; }
.meter.hot span { background: var(--err); }
.bars.wide { height: 160px; gap: 3px; }
.bars.wide .bar em { font-size: .62rem; writing-mode: horizontal-tb; }
@media (max-width: 700px) { .bars.wide .bar em { display: none; } }