:root {
  --bg: #0f1216; --panel: #171b21; --panel2: #1e242c; --line: #2a323c;
  --text: #e6edf3; --muted: #8b98a5; --accent: #4c9aff; --accent2: #2b6cb0;
  --green: #3fb950; --red: #f85149; --amber: #d29922; --chip: #253040;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
header.topnav {
  display: flex; align-items: center; gap: 4px; padding: 10px 18px;
  background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20;
}
header.topnav .brand { font-weight: 700; margin-right: 18px; letter-spacing: .3px; }
header.topnav a.nav {
  padding: 6px 12px; border-radius: 7px; color: var(--muted); font-weight: 500;
}
header.topnav a.nav:hover { background: var(--panel2); color: var(--text); }
header.topnav a.nav.active { background: var(--chip); color: var(--text); }
header.topnav .spacer { flex: 1; }
main { padding: 20px; max-width: 1240px; margin: 0 auto; }
h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 15px; margin: 22px 0 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.grid { display: grid; gap: 12px; }
.stat { background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; min-width: 160px; }
.stat .k { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.stat .v { font-size: 24px; font-weight: 700; margin-top: 4px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
tr:hover td { background: var(--panel2); }
input, select, textarea, button {
  font: inherit; color: var(--text); background: var(--panel2);
  border: 1px solid var(--line); border-radius: 7px; padding: 7px 10px;
}
input:focus, select:focus { outline: 1px solid var(--accent); }
button { background: var(--accent2); border-color: var(--accent2); cursor: pointer; font-weight: 600; }
button:hover { background: var(--accent); }
button.ghost { background: transparent; border-color: var(--line); color: var(--muted); }
button.ghost:hover { color: var(--text); border-color: var(--muted); }
button.danger { background: transparent; border-color: var(--red); color: var(--red); }
button.small { padding: 4px 8px; font-size: 12px; }
.chip { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; background: var(--chip); }
.chip.green { background: rgba(63,185,80,.15); color: var(--green); }
.chip.red { background: rgba(248,81,73,.15); color: var(--red); }
.chip.amber { background: rgba(210,153,34,.18); color: var(--amber); }
.chip.blue { background: rgba(76,154,255,.15); color: var(--accent); }
.muted { color: var(--muted); }
.pos { color: var(--green); } .neg { color: var(--red); }
.right { text-align: right; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; }
.flag { color: var(--amber); }
label.field { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
label.field input, label.field select { min-width: 140px; }
.modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: none; align-items: center; justify-content: center; z-index: 50; }
.modal-bg.open { display: flex; }
.modal { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; width: 480px; max-width: 92vw; max-height: 88vh; overflow: auto; }
.login-wrap { min-height: 80vh; display: flex; align-items: center; justify-content: center; }
.toast { position: fixed; bottom: 20px; right: 20px; background: var(--panel2); border: 1px solid var(--line); padding: 12px 16px; border-radius: 8px; z-index: 100; display: none; }
.toast.show { display: block; }