:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c2430;
  --muted: #5d6877;
  --border: #dde1e7;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --danger: #c62828;
  --ok: #1b7f3b;
  --warn: #9a6700;
  --radius: 8px;
}

* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 .75rem; }
code, pre, textarea.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .875rem; }

.topbar { background: var(--surface); border-bottom: 1px solid var(--border); }
.topbar .inner { max-width: 1100px; margin: 0 auto; padding: .75rem 1rem; display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; }
.topbar .brand { font-weight: 700; color: var(--text); text-decoration: none; margin-right: auto; }
.topbar a { text-decoration: none; }
.topbar form { margin: 0; }

main { max-width: 1100px; margin: 0 auto; padding: 1.5rem 1rem 4rem; }

.flash { padding: .6rem .9rem; border-radius: var(--radius); margin-bottom: 1rem; }
.flash.notice { background: #e7f5ec; color: var(--ok); }
.flash.alert { background: #fdecec; color: var(--danger); }

.page-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.page-head h1 { margin: 0; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.actions form { margin: 0; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.stat .value { font-size: 1.5rem; font-weight: 700; }
.stat .label { color: var(--muted); font-size: .85rem; }

.btn, button, input[type=submit] {
  display: inline-block; border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: .45rem .9rem; border-radius: var(--radius); font: inherit; cursor: pointer; text-decoration: none; line-height: 1.4;
}
.btn.primary, input[type=submit] { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.danger { color: var(--danger); border-color: #f0c4c4; }
.btn.small { padding: .2rem .6rem; font-size: .85rem; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--surface); }
th, td { text-align: left; padding: .6rem .75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }

.badge { display: inline-block; font-size: .75rem; padding: .1rem .5rem; border-radius: 999px; background: #eef1f5; color: var(--muted); }
.badge.indexed, .badge.on { background: #e7f5ec; color: var(--ok); }
.badge.pending { background: #fff5dc; color: var(--warn); }
.badge.failed, .badge.off { background: #fdecec; color: var(--danger); }

.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: .85rem; margin: .25rem 0 0; }

form.stacked .field { margin-bottom: 1rem; }
form.stacked label { display: block; font-weight: 600; margin-bottom: .3rem; }
form.stacked input[type=text], form.stacked input[type=email], form.stacked input[type=password], form.stacked input[type=url],
form.stacked input[type=number], form.stacked select, form.stacked textarea {
  width: 100%; padding: .5rem .6rem; border: 1px solid var(--border); border-radius: var(--radius); font: inherit; background: #fff;
}
form.stacked textarea { min-height: 8rem; resize: vertical; }
form.stacked .row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 1rem; }
form.stacked fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1rem 0; margin: 0 0 1rem; }
form.stacked legend { font-weight: 700; padding: 0 .4rem; }
form.stacked select.suggestions { margin-top: .4rem; color: var(--muted); }
.checkbox label { display: inline; font-weight: normal; }

.errors { background: #fdecec; color: var(--danger); padding: .75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; }
.errors ul { margin: .25rem 0 0; padding-left: 1.2rem; }

.snippet { position: relative; }
.snippet pre { background: #0f172a; color: #e2e8f0; padding: 1rem; border-radius: var(--radius); overflow-x: auto; margin: 0; white-space: pre; }

.transcript .msg { padding: .75rem 1rem; border-radius: var(--radius); margin-bottom: .6rem; white-space: pre-wrap; }
.transcript .msg.user { background: #eef3ff; }
.transcript .msg.assistant { background: var(--surface); border: 1px solid var(--border); }
.transcript .meta { font-size: .75rem; color: var(--muted); margin-bottom: .25rem; }

.chunk { border-left: 3px solid var(--border); padding: .25rem .9rem; margin-bottom: .9rem; white-space: pre-wrap; }
.preview-text { white-space: pre-wrap; max-height: 28rem; overflow: auto; background: #fafbfc; border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; }

.login { max-width: 380px; margin: 4rem auto; }