/* BMW Torque — lean, themeable, mobile-first */
:root{
  --bg:#ffffff; --bg-soft:#f5f7fa; --bg-sunk:#eef1f6;
  --fg:#101418; --fg-soft:#5a6472; --fg-faint:#8a94a3;
  --line:#dfe4ec; --line-soft:#eaeef4;
  --accent:#0066b1; --accent-fg:#ffffff; --accent-soft:#e6f0f9;
  --azd:#0f7b6c; --azd-bg:#e3f4f0; --com:#8a5a00; --com-bg:#fdf1de;
  --warn:#8a4b00; --shadow:0 1px 2px rgba(16,20,24,.06),0 8px 24px rgba(16,20,24,.06);
  --r:12px; --maxw:1180px;
  color-scheme:light;
}
:root[data-theme="dark"],
:root[data-theme="auto"] .dark-probe{}
@media (prefers-color-scheme:dark){
  :root[data-theme="auto"]{
    --bg:#0b0f14; --bg-soft:#121822; --bg-sunk:#0f151d;
    --fg:#e8edf4; --fg-soft:#9fadbf; --fg-faint:#6d7c90;
    --line:#212b38; --line-soft:#1a222d;
    --accent:#4da3e8; --accent-fg:#04121f; --accent-soft:#12293d;
    --azd:#5fd3bf; --azd-bg:#0e2b28; --com:#e0ac5c; --com-bg:#2e2313;
    --warn:#e0ac5c; --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0b0f14; --bg-soft:#121822; --bg-sunk:#0f151d;
  --fg:#e8edf4; --fg-soft:#9fadbf; --fg-faint:#6d7c90;
  --line:#212b38; --line-soft:#1a222d;
  --accent:#4da3e8; --accent-fg:#04121f; --accent-soft:#12293d;
  --azd:#5fd3bf; --azd-bg:#0e2b28; --com:#e0ac5c; --com-bg:#2e2313;
  --warn:#e0ac5c; --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);
  color-scheme:dark;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--fg);
  font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-text-size-adjust:100%;
}
.skip{position:absolute;left:-999px}
.skip:focus{left:8px;top:8px;background:var(--accent);color:var(--accent-fg);padding:8px 12px;border-radius:8px;z-index:99}

/* ── top bar ─────────────────────────────────────────── */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  max-width:var(--maxw);margin:0 auto;padding:14px 16px calc(14px + env(safe-area-inset-top));
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--fg)}
.brand-mark{width:28px;height:28px;color:var(--accent);flex:none}
.brand-text{font-weight:700;font-size:19px;letter-spacing:-.02em}
/* The space between the words is a real space in the markup, not a margin: a 2px gap
   read as one word ("BMWTorque"), and it also has to survive being copied or read out. */
.brand-accent{color:var(--accent)}
.icon-btn{
  width:40px;height:40px;border:1px solid var(--line);background:var(--bg-soft);
  border-radius:10px;color:var(--fg-soft);cursor:pointer;display:grid;place-items:center;padding:0;
}
.icon-btn:hover{color:var(--fg);border-color:var(--fg-faint)}
.icon-btn svg{width:19px;height:19px}
.i-moon{display:none}
:root[data-theme="dark"] .i-sun{display:none}
:root[data-theme="dark"] .i-moon{display:block}
@media (prefers-color-scheme:dark){
  :root[data-theme="auto"] .i-sun{display:none}
  :root[data-theme="auto"] .i-moon{display:block}
}

/* ── mode tabs ───────────────────────────────────────── */
.modes{
  display:flex;gap:4px;max-width:var(--maxw);margin:0 auto;padding:0 16px;
  border-bottom:1px solid var(--line);
}
.mode{
  appearance:none;border:0;background:none;color:var(--fg-soft);cursor:pointer;
  padding:11px 16px;font:inherit;font-weight:600;font-size:15px;border-radius:8px 8px 0 0;
  border-bottom:2px solid transparent;margin-bottom:-1px;
}
.mode:hover{color:var(--fg);background:var(--bg-soft)}
.mode[aria-selected="true"]{color:var(--accent);border-bottom-color:var(--accent)}

main{max-width:var(--maxw);margin:0 auto;padding:0 16px 64px}

/* ── hero + fields ───────────────────────────────────── */
.hero{text-align:center;padding:34px 0 22px}
.hero h1{font-size:clamp(23px,4.4vw,34px);line-height:1.2;margin:0 0 8px;letter-spacing:-.025em}
.sub{margin:0;color:var(--fg-soft);font-size:15px}

.pickers{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
.pickers.grid4{grid-template-columns:repeat(4,1fr)}
@media (max-width:820px){.pickers,.pickers.grid4{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.pickers,.pickers.grid4{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field>span{font-size:12.5px;font-weight:600;color:var(--fg-soft);text-transform:uppercase;letter-spacing:.045em}
.field em{font-style:normal;color:var(--accent);font-weight:600;text-transform:none;letter-spacing:0}
select,#vinInput{
  width:100%;padding:11px 12px;font:inherit;font-size:15px;color:var(--fg);
  background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;
}
select:focus-visible,#vinInput:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);outline-offset:1px
}
select:disabled{opacity:.55;cursor:not-allowed}

/* ── search bar + autocomplete ───────────────────────── */
.searchbar{position:relative;display:flex;align-items:center;margin:6px 0 4px}
.searchbar .mag{position:absolute;left:15px;width:19px;height:19px;color:var(--fg-faint);pointer-events:none}
.searchbar input{
  width:100%;padding:15px 44px 15px 44px;font:inherit;font-size:16.5px;color:var(--fg);
  background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow);
}
.searchbar input::-webkit-search-cancel-button{display:none}
.searchbar .clear{
  position:absolute;right:12px;width:28px;height:28px;border:0;border-radius:50%;
  background:var(--bg-sunk);color:var(--fg-soft);font-size:19px;line-height:1;cursor:pointer
}
.ac{
  position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:30;margin:0;padding:6px;
  list-style:none;background:var(--bg);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);max-height:56vh;overflow:auto
}
.ac li{padding:9px 12px;border-radius:9px;cursor:pointer;display:flex;gap:10px;align-items:center;font-size:15px}
.ac li[aria-selected="true"],.ac li:hover{background:var(--accent-soft)}
.ac .k{font-size:11px;font-weight:700;color:var(--fg-faint);text-transform:uppercase;margin-left:auto;letter-spacing:.05em}
.ac mark{background:transparent;color:var(--accent);font-weight:700}

.hint{color:var(--fg-soft);font-size:14px;text-align:center;margin:14px 0 0}
.chip{
  border:1px solid var(--line);background:var(--bg-soft);color:var(--fg-soft);
  border-radius:999px;padding:5px 12px;margin:3px;font:inherit;font-size:13.5px;cursor:pointer
}
.chip:hover{border-color:var(--accent);color:var(--accent)}

/* ── VIN ─────────────────────────────────────────────── */
.vinrow{display:flex;gap:10px;max-width:560px;margin:0 auto}
#vinInput{text-transform:uppercase;letter-spacing:.09em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.btn{
  padding:11px 20px;font:inherit;font-weight:600;border-radius:10px;cursor:pointer;
  border:1px solid var(--line);background:var(--bg-soft);color:var(--fg)
}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-fg)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.privacy{text-align:center;color:var(--fg-faint);font-size:12.5px;margin:10px 0 0}

.vehicle-card{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r);
  padding:16px;margin:18px 0 6px
}
.vehicle-card h2{margin:0 0 4px;font-size:17px}
.vehicle-card .dl{display:flex;flex-wrap:wrap;gap:6px 22px;margin:10px 0 0;font-size:14px}
.vehicle-card .dl div{display:flex;gap:6px}
.vehicle-card .dl dt{color:var(--fg-soft)}
.vehicle-card .dl dd{margin:0;font-weight:600}
.note{
  background:var(--com-bg);border-left:3px solid var(--warn);color:var(--fg);
  padding:9px 12px;border-radius:0 8px 8px 0;font-size:13.5px;margin:10px 0 0
}
.confirm{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin-top:14px}
.confirm .field{flex:1 1 190px}

/* ── results ─────────────────────────────────────────── */
.resbar{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  margin:26px 0 10px;flex-wrap:wrap
}
.resbar h2{font-size:16px;margin:0}
.resbar .meta{color:var(--fg-faint);font-size:13px}
.scope{
  display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:var(--accent);
  border-radius:999px;padding:3px 11px;font-size:12.5px;font-weight:600;margin-left:8px
}

.topic{margin:22px 0 0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--bg)}
.topic>h3{
  margin:0;padding:11px 15px;font-size:14.5px;background:var(--bg-soft);
  border-bottom:1px solid var(--line);display:flex;align-items:center;gap:9px;flex-wrap:wrap
}
.tag{font-size:10.5px;font-weight:800;letter-spacing:.06em;padding:2px 7px;border-radius:5px}
.tag.azd{background:var(--azd-bg);color:var(--azd)}
.tag.com{background:var(--com-bg);color:var(--com)}
/* The heading is a flex row (tag / title / count). The title must be ONE flex item:
   left as a bare text node, every <mark> the highlighter inserts becomes its own
   flex item and the row gap splits the word - "exhau st-gas". */
.topic .ttl{min-width:0}
.topic .cnt{margin-left:auto;color:var(--fg-faint);font-weight:500;font-size:12.5px}

table{width:100%;border-collapse:collapse;font-size:14.5px}
thead th{
  text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;
  color:var(--fg-faint);font-weight:700;padding:9px 15px;border-bottom:1px solid var(--line-soft);
  background:var(--bg)
}
tbody td{padding:11px 15px;border-bottom:1px solid var(--line-soft);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:var(--bg-soft)}
td.nm{font-weight:600;min-width:190px}
td.tq{white-space:nowrap;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
/* Multi-step torques: one step per line, each kept unbroken. The .steps wrapper keeps
   them a single flex item when the cell becomes a flex row on mobile. */
td.tq:has(.steps){white-space:normal}
td.tq .steps{display:block;min-width:0}
td.tq .step{display:block;white-space:nowrap}
td.tq .step+.step{margin-top:3px}
td.th,td.ty{color:var(--fg-soft);font-variant-numeric:tabular-nums}
td.sp{color:var(--fg-soft)}
.az{display:inline-block;min-width:30px;color:var(--fg-faint);font-weight:700;font-size:12.5px}
.allmodels{font-size:11.5px;color:var(--fg-faint);font-style:italic}
/* No horizontal padding: a highlight landing inside a word must never look like
   a space ("tightening <mark>to</mark>rques" read as "to rques"). */
mark{background:var(--accent-soft);color:inherit;border-radius:3px;padding:0;
     box-decoration-break:clone;-webkit-box-decoration-break:clone}

.empty{text-align:center;padding:52px 16px;color:var(--fg-soft)}
.empty strong{display:block;font-size:17px;color:var(--fg);margin-bottom:6px}
.spinner{
  width:20px;height:20px;border:2px solid var(--line);border-top-color:var(--accent);
  border-radius:50%;animation:spin .7s linear infinite;margin:34px auto
}
@keyframes spin{to{transform:rotate(360deg)}}
#more{text-align:center;margin:22px 0}

/* ── mobile: table becomes cards ─────────────────────── */
@media (max-width:760px){
  main{padding:0 12px 56px}
  thead{display:none}
  tbody tr{display:block;padding:13px 14px;border-bottom:1px solid var(--line-soft)}
  tbody tr:last-child{border-bottom:0}
  /* Block, not flex. A flex cell makes a flex item of every inline child, so a
     highlighted <mark> inside a note tore the sentence into narrow columns. The label is
     taken out of flow instead and the text stays one ordinary inline run. */
  tbody td{display:block;position:relative;padding:2px 0 2px 106px;border:0}
  tbody td::before{
    content:attr(data-l);position:absolute;left:0;top:2px;width:96px;
    color:var(--fg-faint);font-size:12px;
    text-transform:uppercase;letter-spacing:.04em;font-weight:700
  }
  td.nm{font-size:15.5px;margin-bottom:5px;padding-left:0}
  td.nm::before{display:none}
  td:empty{display:none}
  td.tq{font-size:15.5px}
}

.foot{
  max-width:var(--maxw);margin:0 auto;padding:26px 16px calc(30px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);color:var(--fg-soft);font-size:13px
}
.foot p{margin:0 0 6px}
.foot .warn{color:var(--fg-faint);font-size:12px}

/* out-of-scope escape hatch */
.widen{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;
  padding:9px 13px;font-size:13.5px;color:var(--fg-soft);margin:0 0 4px
}
.widen.on{background:var(--accent-soft);border-color:var(--accent);color:var(--fg)}
.linkbtn{
  border:0;background:none;padding:0;font:inherit;font-weight:600;
  color:var(--accent);cursor:pointer;text-decoration:underline
}
.pickers.grid3{grid-template-columns:repeat(3,1fr)}
@media (max-width:820px){.pickers.grid3{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.pickers.grid3{grid-template-columns:1fr}}

/* ── merged AZD rows: specification + torque kept line-for-line ─────────── */
/* Both columns emit one block per step with identical line metrics, so step N of the
   specifications column sits on the same visual line as step N of the torque column.
   Blank lines are real: a note without a torque must not pull the next value up. */
td.sp .lines,td.tq .steps{display:block;min-width:0}
td.sp .line,td.tq .step{display:block;line-height:1.5;min-height:1.5em}
td.sp .line+.line,td.tq .step+.step{margin-top:3px}
td.sp .line{padding-left:13px;position:relative}
td.sp .line::before{content:"–";position:absolute;left:0;color:var(--fg-faint)}
/* The dash is a separator, not decoration: with a single note there is nothing to
   separate, so it only adds noise. */
td.sp .line:only-child{padding-left:0}
td.sp .line:only-child::before{content:none}

/* ── Advanced Search: group tree, filters, chips ────────────────────────
   The tree is the mode's centre of gravity: it answers "where is this on the car"
   without a search term at all. Kept as plain buttons so it works on touch and with a
   keyboard, and so the whole thing stays one flat list on a phone. */
.tree{
  border:1px solid var(--line);border-radius:12px;background:var(--bg-soft);
  margin:0 0 14px;overflow:hidden
}
.treehead{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 15px;background:none;border:0;font:inherit;font-weight:600;
  color:var(--fg);cursor:pointer;text-align:left
}
.treehead::before{content:"▸";color:var(--fg-faint);margin-right:2px;transition:transform .15s}
.treehead[aria-expanded="true"]::before{transform:rotate(90deg)}
.treehead span:first-of-type{flex:1}
.treecount{color:var(--fg-faint);font-weight:400;font-size:13px}
.treebody{border-top:1px solid var(--line);max-height:min(60vh,520px);overflow:auto}
.tg+.tg{border-top:1px solid var(--line-soft)}
.tgh,.tsb{
  display:flex;width:100%;align-items:baseline;gap:10px;padding:9px 15px;
  background:none;border:0;font:inherit;color:var(--fg);cursor:pointer;text-align:left
}
.tgh{font-weight:600}
.tgh:hover,.tsb:hover{background:var(--bg)}
.tg.open .tgh{color:var(--accent)}
.tgn{
  flex:0 0 52px;color:var(--fg-faint);font-variant-numeric:tabular-nums;
  font-weight:700;font-size:12.5px;letter-spacing:.02em
}
.tgl{flex:1;min-width:0}
.tgc{color:var(--fg-faint);font-size:12.5px;font-variant-numeric:tabular-nums}
.tgs{background:var(--bg);border-top:1px solid var(--line-soft)}
.tsb{padding-left:26px;font-size:14px}
.tsb.on{background:var(--accent-soft);color:var(--fg);font-weight:600}
.tsb.on .tgn{color:var(--accent)}

.filters{
  display:flex;flex-wrap:wrap;align-items:end;gap:12px 16px;margin:14px 0 0;
  padding:13px 15px;border:1px solid var(--line);border-radius:12px
}
.fl{display:flex;flex-direction:column;gap:5px;min-width:0}
.fl>span{
  color:var(--fg-faint);font-size:11.5px;font-weight:700;
  text-transform:uppercase;letter-spacing:.04em
}
.fl select{
  padding:7px 10px;border:1px solid var(--line);border-radius:8px;
  background:var(--bg);color:var(--fg);font:inherit;font-size:14px
}
.fk{display:flex;align-items:center;gap:7px;font-size:14px;padding-bottom:7px;cursor:pointer}
.fk input{width:16px;height:16px;accent-color:var(--accent)}

.chips{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:10px 0 0}
.chipx{
  display:inline-flex;align-items:center;gap:7px;padding:5px 11px;
  border:1px solid var(--accent);border-radius:999px;background:var(--accent-soft);
  color:var(--fg);font:inherit;font-size:13px;cursor:pointer
}
.chipx span{color:var(--fg-faint);font-size:15px;line-height:1}
.chipx:hover span{color:var(--accent)}

@media (max-width:760px){
  .filters{gap:10px 12px;padding:11px 12px}
  .fl{flex:1 1 140px}
  .fl select{width:100%}
  .fk{flex:1 1 100%;padding-bottom:0}
  .tgn{flex-basis:46px}
}

/* Browse's tree is always open - it is the mode's whole point, not a disclosure. */
.treehead.static{cursor:default}
.treehead.static::before{content:none}
#b-tree .treebody{border-top:0}
.field .opt{color:var(--fg-faint);font-weight:600;text-transform:none;letter-spacing:0}
#b-hint{margin:16px 0 0}
@media (max-width:760px){
  /* three tabs at 375 px: let them shrink rather than scroll the row */
  .mode{padding:11px 10px;font-size:14.5px}
  .treehead{flex-wrap:wrap;gap:2px 12px}
  .treehead .treecount{flex:1 0 100%}
}