:root { --bg: #f5f6f7; --card: #fff; --text: #1d2d3e; --muted: #556b82; --line: #e5e5e5; --brand: #0a6ed1; --brand-soft: #e8f2ff;
  --ok: #256f3a; --ok-bg: #e2f5e2; --warn: #8a5a00; --warn-bg: #fff3d6; --bad: #a00; --bad-bg: #ffe5e5; color-scheme: light; }
@media (prefers-color-scheme: dark) { :root { --bg: #12171d; --card: #1b222b; --text: #e6edf3; --muted: #9aaaba; --line: #2c3540;
  --brand: #4da3ff; --brand-soft: #1c2c40; --ok: #7fd49a; --ok-bg: #173022; --warn: #f0c060; --warn-bg: #352a12; --bad: #ff8a8a; --bad-bg: #3a1a1a; color-scheme: dark; } }
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.45 "Inter", system-ui, -apple-system, Segoe UI, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--brand); text-decoration: none; } a:hover { text-decoration: underline; }
header { display: flex; align-items: center; gap: 1rem; padding: .75rem 1.25rem; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 2; }
.logo { font-weight: 800; letter-spacing: .02em; } .logo span { color: var(--brand); }
nav { display: flex; gap: .25rem; flex: 1; } nav a { padding: .4rem .7rem; border-radius: .5rem; color: var(--text); }
nav a.active { background: var(--brand-soft); color: var(--brand); text-decoration: none; }
main { max-width: 1200px; margin: 0 auto; padding: 1.25rem; }
h1 { font-size: 1.35rem; margin: 0 0 1rem; } h2 { font-size: 1.05rem; margin: 0 0 .75rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: .75rem; padding: 1rem 1.1rem; margin-bottom: 1rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.kpi .n { font-size: 1.9rem; font-weight: 700; } .kpi .l { color: var(--muted); }
table { width: 100%; border-collapse: collapse; } th, td { text-align: left; padding: .5rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
tr.click { cursor: pointer; } tr.click:hover td { background: var(--brand-soft); }
.muted { color: var(--muted); } .mono { font-family: ui-monospace, Menlo, monospace; font-size: .85em; }
.tag { display: inline-block; padding: .05rem .45rem; border-radius: .3rem; font-size: .78rem; font-weight: 600; }
.ok { background: var(--ok-bg); color: var(--ok); } .warn { background: var(--warn-bg); color: var(--warn); } .bad { background: var(--bad-bg); color: var(--bad); }
.row { display: flex; gap: .75rem; flex-wrap: wrap; align-items: flex-end; } .row > label { flex: 1 1 180px; }
label { display: block; font-size: .8rem; color: var(--muted); } label > input, label > select, label > textarea { margin-top: .2rem; }
input, select, textarea { width: 100%; padding: .5rem .6rem; border: 1px solid var(--line); border-radius: .5rem; background: var(--card); color: var(--text); font: inherit; }
textarea { min-height: 4.5rem; resize: vertical; }
button { padding: .5rem .9rem; border-radius: .5rem; border: 1px solid var(--line); background: var(--card); color: var(--text); font: inherit; cursor: pointer; }
button.primary { background: var(--brand); border-color: var(--brand); color: #fff; } button.danger { color: var(--bad); }
button:disabled { opacity: .5; cursor: default; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.msg { padding: .6rem .8rem; border-radius: .5rem; margin-bottom: 1rem; } .msg.error { background: var(--bad-bg); color: var(--bad); } .msg.info { background: var(--brand-soft); }
.center { min-height: 100vh; display: grid; place-items: center; padding: 16px; } .narrow { width: 100%; max-width: 380px; }
.narrow form > * + * { margin-top: .75rem; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: .75rem; flex-wrap: wrap; margin-bottom: 1rem; }
.toolbar h1 { margin: 0; }
.tablewrap { overflow-x: auto; }
#qr { display: flex; justify-content: center; padding: .5rem; background: #fff; border-radius: .5rem; }
@media (max-width: 700px) { header { flex-wrap: wrap; } nav { order: 3; flex-basis: 100%; overflow-x: auto; } main { padding: 16px; }
  th:nth-child(n+4), td:nth-child(n+4) { display: none; } }