:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #7c8698;
  --line: #e3e7ee;
  --accent: #1f6feb;
  --ok: #e7f6ec;
  --ok-text: #1a7f43;
  --err: #fdecec;
  --err-text: #b42318;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 15px/1.5 -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a.plain { color: inherit; text-decoration: none; }

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 13px; }
.num { text-align: right; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: #fff; border-bottom: 1px solid var(--line);
}
.brand { font-weight: 600; }
.brand .muted { font-weight: 400; margin-left: 8px; font-size: 13px; }
.user { display: flex; align-items: center; gap: 12px; }

main, .login-wrap { padding: 20px; max-width: 1240px; margin: 0 auto; }
.login-wrap { max-width: 420px; padding-top: 12vh; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 18px; margin-bottom: 18px;
}
.login label { display: block; margin: 12px 0; font-size: 14px; color: var(--muted); }
.login input { width: 100%; margin-top: 6px; padding: 9px 10px; font-size: 15px;
  border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--text); }

button {
  padding: 9px 14px; font-size: 14px; border: 0; border-radius: 8px;
  background: var(--accent); color: #fff; cursor: pointer;
}
button.ghost, .btn.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); }
button:hover { filter: brightness(1.05); }

.btn { display: inline-block; padding: 8px 12px; border-radius: 8px; font-size: 14px; cursor: pointer; }
.actions { display: flex; gap: 8px; align-items: center; }

.row { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.inline { display: inline; }

h1 { font-size: 20px; margin: 0 0 6px; }
h2 { font-size: 17px; margin: 0 0 6px; }

.alert { padding: 10px 12px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.alert.ok { background: var(--ok); color: var(--ok-text); }
.alert.error { background: var(--err); color: var(--err-text); }

table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 14px; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 500; background: #fafbfd; }

table.kv th { width: 190px; }
table.kv td { background: #fff; }

.fld { display: block; margin: 0 0 14px; }
.fld > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.fld input[type=text], .fld textarea {
  width: 100%; padding: 9px 10px; font: inherit; color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; background: #fff; resize: vertical;
}
.fld textarea { min-height: 90px; }
.src { font-style: normal; color: #a6b0c0; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 820px) { .grid2 { grid-template-columns: 1fr; } }

code { background: #f0f2f6; padding: 1px 5px; border-radius: 4px; font-size: 13px; }

.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 980px) { .grid4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .grid4 { grid-template-columns: 1fr; } }

.fld select {
  width: 100%; padding: 9px 10px; font: inherit; color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; background: #fff;
}

.ai-form { border-bottom: 1px solid var(--line); padding-bottom: 14px; margin-bottom: 16px; }
.ai-form button { margin-right: 8px; }

@media (max-width: 900px) {
  .kv th { width: auto; }
}

.two-col { display: grid; grid-template-columns: 380px 1fr; gap: 18px; align-items: start; }
@media (max-width: 1100px) { .two-col { grid-template-columns: 1fr; } }

ul.tree { list-style: none; margin: 8px 0 0; padding: 0; font-size: 14px; }
ul.tree ul { list-style: none; margin: 4px 0 4px 14px; padding-left: 10px; border-left: 1px dashed var(--line); }
ul.tree li { margin: 3px 0; }
ul.tree details > summary { cursor: pointer; }
ul.tree li.leaf { padding-left: 4px; }

.tag { display: inline-block; padding: 1px 6px; border-radius: 10px; background: #eef3ff; color: #2b56b8; font-size: 12px; }
.mini { font-size: 12px; }
.pager { margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.mono.small { font-size: 12px; }