:root {
  color-scheme: light;
  --surface-0: #f5f5f3;
  --surface-1: #fcfcfb;
  --surface-2: #efeeea;
  --border: #dedcd5;
  --border-strong: #b9b7ad;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #7a7973;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --accent-soft: #cde2fb;
  --seq-100: #cde2fb;
  --seq-250: #86b6ef;
  --seq-400: #3987e5;
  --seq-550: #1c5cab;
  --good: #0ca30c;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.05);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --surface-0: #121211;
    --surface-1: #1a1a19;
    --surface-2: #242423;
    --border: #33332f;
    --border-strong: #55554f;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #8f8e85;
    --accent: #3987e5;
    --accent-soft: #1c3a5e;
    --seq-100: #1c3a5e;
    --seq-250: #2a5c98;
    --seq-400: #3987e5;
    --seq-550: #86b6ef;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 4px 16px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-0: #121211; --surface-1: #1a1a19; --surface-2: #242423;
  --border: #33332f; --border-strong: #55554f;
  --text-primary: #ffffff; --text-secondary: #c3c2b7; --text-muted: #8f8e85;
  --accent: #3987e5; --accent-soft: #1c3a5e;
  --seq-100: #1c3a5e; --seq-250: #2a5c98; --seq-400: #3987e5; --seq-550: #86b6ef;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.45;
  color: var(--text-primary);
  background: var(--surface-0);
}
h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: 20px; }
h2 { font-size: 17px; display: flex; align-items: center; gap: 10px; }
p { margin: 0; }
code { font-family: var(--mono); font-size: 0.92em; background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
pre { font-family: var(--mono); font-size: 12.5px; }
a, .link { color: var(--accent); cursor: pointer; text-decoration: underline; }
.muted { color: var(--text-muted); }
.small { font-size: 13px; }
.hint { color: var(--text-secondary); font-size: 14px; max-width: 78ch; }
.empty { color: var(--text-muted); padding: 14px 0; font-size: 14px; }

.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 12px 24px;
  background: var(--surface-1);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 30px; height: 30px; border-radius: 7px; background: var(--accent); position: relative; flex: none; }
.brand-mark::before, .brand-mark::after, .brand-mark span {
  content: ""; position: absolute; left: 8px; height: 3px; border-radius: 2px; background: #fff;
}
.brand-mark::before { top: 8px; width: 14px; }
.brand-mark::after { top: 14px; width: 10px; box-shadow: 0 6px 0 0 #fff; clip-path: inset(0 0 0 0); }
.tagline { color: var(--text-muted); font-size: 13px; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.key-status { font-size: 13px; color: var(--text-muted); padding: 4px 10px; border: 1px solid var(--border); border-radius: 999px; }
.key-status.ok { color: var(--good); border-color: var(--good); }

.stack { max-width: 1180px; margin: 24px auto 80px; padding: 0 24px; display: grid; gap: 20px; }
.panel { background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.panel-head { padding: 16px 20px 6px; display: grid; gap: 6px; }
.panel-body { padding: 12px 20px 18px; }
.panel-body + .panel-body { border-top: 1px solid var(--border); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } .stack { padding: 0 12px; } }
.step {
  display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink); font-size: 13px; font-weight: 700;
}

.btn {
  font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border-strong);
  background: var(--surface-1); color: var(--text-primary);
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); background: var(--accent); }
.btn-ghost { background: transparent; }
.btn.danger { color: var(--critical); }
.btn-sm { padding: 4px 9px; font-size: 13px; }
.link-btn { font: inherit; background: none; border: none; color: var(--accent); text-decoration: underline; cursor: pointer; padding: 0; }
.row-end { display: flex; justify-content: flex-end; margin-top: 10px; }
.row-start { display: flex; align-items: center; }
.gap { gap: 10px; }

input[type="text"], input[type="password"], input[type="number"], input[type="search"], textarea, select {
  font: inherit; width: 100%;
  padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--border-strong); background: var(--surface-1); color: var(--text-primary);
}
textarea { resize: vertical; font-size: 14px; }
textarea.mono { font-family: var(--mono); font-size: 12.5px; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.field-label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin: 8px 0 4px; }
.check { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; cursor: pointer; }
.radio-row { display: flex; gap: 16px; flex-wrap: wrap; margin: 4px 0 6px; }
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px 14px; margin: 0 0 14px; }
legend { font-weight: 650; font-size: 14px; padding: 0 6px; }

.dropzone {
  border: 2px dashed var(--border-strong); border-radius: var(--radius);
  padding: 28px 16px; text-align: center; background: var(--surface-0);
  min-height: 150px; display: grid; place-content: center; gap: 4px;
}
.dropzone.over { border-color: var(--accent); background: var(--accent-soft); }
.paste-box { display: grid; gap: 6px; align-content: start; }

.doc-list { display: grid; gap: 8px; }
.doc {
  display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center;
  padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-0);
}
.doc-name { font-weight: 600; word-break: break-word; }
.doc-name input { font-weight: 600; padding: 4px 8px; }
.doc-meta { color: var(--text-muted); font-size: 13px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.doc-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600;
  border: 1px solid currentColor;
}
.badge.warn { color: #8a5a00; }
.badge.crit { color: var(--critical); }
.badge.ok { color: var(--good); }
.badge.info { color: var(--accent); }
.badge.neutral { color: var(--text-muted); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .badge.warn { color: var(--warning); } }

.q-list { display: grid; gap: 12px; }
.q-card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-0); overflow: hidden; }
.q-card.unadaptable { border-style: dashed; }
.q-card.excluded { opacity: .6; }
.q-head { display: flex; gap: 10px; align-items: center; padding: 10px 14px; background: var(--surface-2); flex-wrap: wrap; }
.q-head .orig { flex: 1 1 300px; font-weight: 600; }
.q-body { padding: 10px 14px 14px; display: grid; gap: 8px; grid-template-columns: 1fr 1fr; }
.q-body .full { grid-column: 1 / -1; }
@media (max-width: 800px) { .q-body { grid-template-columns: 1fr; } }
.q-note { grid-column: 1 / -1; font-size: 13.5px; color: var(--text-secondary); padding: 8px 10px; border-left: 3px solid var(--accent); background: var(--surface-1); border-radius: 0 6px 6px 0; }
.q-note.unadaptable { border-left-color: var(--serious); }
.q-error { color: var(--critical); font-size: 13px; }
.q-tools { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.json-view { margin-top: 12px; padding: 12px; background: var(--surface-2); border-radius: 8px; overflow: auto; max-height: 420px; white-space: pre; }

.status { font-size: 13.5px; margin-top: 8px; min-height: 1.2em; }
.status.err { color: var(--critical); }
.run-summary { font-size: 14px; margin-bottom: 8px; }
.warnings { display: grid; gap: 6px; margin-bottom: 10px; }
.warning-item { font-size: 13.5px; padding: 8px 10px; border-radius: 6px; background: var(--surface-2); border-left: 3px solid var(--warning); }
.progress { flex: 1; height: 8px; background: var(--surface-2); border-radius: 999px; overflow: hidden; max-width: 420px; }
.progress .bar { height: 100%; width: 0; background: var(--accent); transition: width .3s; }
.log { font-family: var(--mono); font-size: 12.5px; color: var(--text-secondary); margin-top: 10px; display: grid; gap: 2px; max-height: 200px; overflow: auto; }
.log .err { color: var(--critical); }

.toolbar { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: 8px; margin-top: 8px; }
table.results { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 13.5px; }
table.results th, table.results td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; text-align: left; }
table.results th { background: var(--surface-2); font-weight: 650; position: sticky; top: 0; z-index: 1; }
table.results th.rowhead, table.results td.rowhead { position: sticky; left: 0; background: var(--surface-1); z-index: 2; min-width: 180px; max-width: 260px; font-weight: 600; }
table.results th.rowhead { z-index: 3; background: var(--surface-2); }
table.results .qhead { min-width: 170px; }
table.results .qhead .qtype { font-weight: 500; color: var(--text-muted); font-size: 12px; display: block; }
table.results tr:hover td { background: var(--surface-0); }
table.results tr:hover td.rowhead { background: var(--surface-0); }
.cell { display: grid; gap: 4px; min-width: 150px; }
.cell .val { font-weight: 650; display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.cell .val .conf { font-weight: 500; color: var(--text-muted); font-size: 12px; white-space: nowrap; }
.cell .bar { height: 6px; border-radius: 4px; background: var(--seq-100); overflow: hidden; }
.cell .bar > i { display: block; height: 100%; background: var(--seq-400); border-radius: 4px; }
.cell .legend { font-size: 12.5px; color: var(--text-secondary); }
.cell.err { color: var(--critical); font-weight: 600; min-width: 120px; }
.cell .probs { display: none; font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.show-probs .cell .probs { display: grid; gap: 2px; }
.probs .p { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.probs .p b { font-weight: 500; }
.doc-meta-row td { color: var(--text-muted); font-size: 12px; background: var(--surface-0); }
td.usage { white-space: nowrap; }

.backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 20; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(460px, 100%);
  background: var(--surface-1); border-left: 1px solid var(--border); z-index: 21;
  display: grid; grid-template-rows: auto 1fr; box-shadow: var(--shadow);
}
.drawer-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.drawer-body { padding: 16px 18px; overflow: auto; }
.modal {
  position: fixed; inset: 6vh 8vw; background: var(--surface-1); border: 1px solid var(--border);
  border-radius: var(--radius); z-index: 21; display: grid; grid-template-rows: auto 1fr; box-shadow: var(--shadow);
}
.preview-text { margin: 0; padding: 16px 18px; overflow: auto; white-space: pre-wrap; word-break: break-word; font-size: 13px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.q-inputs { display: grid; gap: 8px; margin-bottom: 8px; }
.q-input { display: grid; grid-template-columns: 1fr auto; gap: 6px; align-items: start; }
.q-input textarea { min-height: 46px; }
.q-input .btn { margin-top: 2px; }
.wrap { flex-wrap: wrap; }
.paste-list { margin-top: 10px; display: grid; gap: 6px; }
.notice {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 50;
  max-width: 720px; width: calc(100% - 32px); padding: 14px 18px; border-radius: 10px;
  background: var(--surface-1); color: var(--text-primary); border: 2px solid var(--critical); box-shadow: var(--shadow); font-size: 14px;
}

/* How-it-works flow */
.intro .panel-head h2 { font-size: 18px; }
.flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 10px; align-items: stretch; margin: 6px 0 14px; }
.flow-col { display: grid; gap: 10px; align-content: stretch; }
.flow-arrows { display: grid; align-content: space-around; justify-items: center; color: var(--text-muted); font-size: 22px; gap: 10px; }
.flow-box {
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; background: var(--surface-0);
  font-weight: 650; font-size: 14px; display: grid; gap: 3px; align-content: start;
}
.flow-box small { font-weight: 400; color: var(--text-secondary); font-size: 12.5px; line-height: 1.35; }
.flow-box.tall { height: 100%; align-content: center; }
.flow-box.in { border-color: var(--border-strong); }
.flow-box.svc { border: 2px solid var(--accent); background: var(--accent-soft); }
.flow-box.out { border-color: var(--good); }
.flow-box.neutral { border-style: dashed; }
.flow-kicker { display: block; font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); }
.flow-box.in .flow-kicker, .flow-box.out .flow-kicker { color: var(--text-muted); }
.flow-box.out .flow-kicker { color: var(--good); }
@media (max-width: 900px) {
  .flow { grid-template-columns: 1fr; }
  .flow-arrows { grid-auto-flow: column; }
  .flow-arrows span { transform: rotate(90deg); }
}
/* Keys panel */
.keys-grid { align-items: start; }
.key-card { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px 14px; background: var(--surface-0); display: grid; gap: 6px; align-content: start; }
.key-card-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.badge.svc { color: var(--accent); }
.key-state { font-size: 12.5px; font-weight: 600; padding: 2px 9px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--text-muted); }
.key-state.set { color: var(--accent); border-color: var(--accent); }
.key-state.ok { color: var(--good); border-color: var(--good); }
.key-state.bad { color: var(--critical); border-color: var(--critical); }
.advanced { margin-top: 6px; }
.advanced summary { cursor: pointer; font-size: 13px; color: var(--text-secondary); }
.save-state { margin-left: auto; }
.needs-key { margin-top: 8px; font-size: 13.5px; padding: 8px 10px; border-radius: 6px; background: var(--surface-2); border-left: 3px solid var(--accent); }
.needs-key a.jump { color: var(--accent); }
.panel.flash { outline: 3px solid var(--accent); outline-offset: 2px; transition: outline-color 1.2s; }

/* Segmented provider control */
.segmented { display: inline-flex; border: 1px solid var(--border-strong); border-radius: 8px; overflow: hidden; background: var(--surface-1); }
.segmented label { position: relative; cursor: pointer; }
.segmented input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.segmented span { display: block; padding: 6px 12px; font-size: 13.5px; font-weight: 600; color: var(--text-secondary); border-right: 1px solid var(--border); }
.segmented label:last-child span { border-right: none; }
.segmented input:checked + span { background: var(--accent); color: var(--accent-ink); }
.segmented input:focus-visible + span { outline: 2px solid var(--accent-soft); outline-offset: -2px; }
select#llmModelSelect { appearance: auto; -webkit-appearance: menulist; margin-top: 4px; }
#modelSearch { margin-bottom: 4px; }
.small-check { font-size: 13px; color: var(--text-secondary); margin-top: 6px; }
#llmModelCustom { margin-top: 4px; }

.btn { white-space: nowrap; }