:root{
  --bg:#f5f6f8; --panel:#ffffff; --panel2:#f7f8fa; --ink:#151a20; --muted:#5b6673;
  --line:#e2e6eb; --accent:#1763d6; --accent-ink:#0f4aa8; --green:#137a3b; --yt:#c1231b;
  --hi:#fdeceb; --hi-ink:#a11d17; --md:#fbf3d8; --md-ink:#8a5a00; --lo:#e7f4ec; --lo-ink:#1c6b34;
  --radius:16px; --shadow:0 1px 2px rgba(16,24,40,.04);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --scale:1;
}
html[data-theme="dark"]{
  --bg:#0d1116; --panel:#161c23; --panel2:#1c242c; --ink:#eef2f6; --muted:#9aa7b4;
  --line:#28313a; --accent:#4b91ff; --accent-ink:#8fbcff; --green:#39c06d; --yt:#ff5a4d;
  --hi:#3a1c1a; --hi-ink:#ff8a80; --md:#3a2f18; --md-ink:#ffcf70; --lo:#173a25; --lo-ink:#79e29c;
  --shadow:none;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:calc(17px*var(--scale));line-height:1.55;-webkit-text-size-adjust:100%}
.wrap{max-width:860px;margin:0 auto;padding:0 16px 40px}
a{color:var(--accent);text-decoration:none}
.hidden{display:none!important}
.muted{color:var(--muted)}

/* header */
header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.hbar{max-width:860px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:12px}
.mark{width:40px;height:40px;border-radius:11px;background:var(--accent);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.mark svg{width:60%;height:60%;fill:#fff}
.brandname{font-weight:800;font-size:1.22rem;letter-spacing:-.01em;line-height:1}
.brandtag{font-size:.72rem;color:var(--muted);font-weight:600;letter-spacing:.02em}
.htools{display:flex;gap:8px;margin-left:auto}
.tbtn{min-width:42px;height:42px;padding:0 10px;border:1px solid var(--line);background:var(--panel);border-radius:11px;font-weight:800;color:var(--ink);cursor:pointer;font-size:1rem}
.tbtn:active{transform:scale(.96)}

/* controls */
.controls{margin-top:12px;display:grid;gap:10px}
.selrow{display:grid;grid-template-columns:1fr 1fr .8fr;gap:10px}
@media(max-width:620px){.selrow{grid-template-columns:1fr 1fr}}
label.lbl{display:block;font-size:.72rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin:0 0 5px 3px}
select,input[type=text]{width:100%;background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:12px 12px;font-size:1rem;font-family:inherit;font-weight:600}
select:focus,input:focus{outline:none;border-color:var(--accent)}
.brandnote{background:var(--panel2);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:12px;padding:11px 14px;font-size:.92rem;color:var(--muted)}
.brandnote b{color:var(--ink)}

/* search */
.searchwrap{position:relative;margin-top:4px}
#q{font-size:1.35rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;text-align:left;padding:15px 15px}
#q::placeholder{color:var(--muted);font-weight:700;letter-spacing:.02em;text-transform:none}
.suggest{position:absolute;left:0;right:0;top:calc(100% + 6px);background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 30px rgba(16,24,40,.10);overflow:hidden;z-index:15}
.sug{display:flex;gap:12px;align-items:baseline;padding:12px 14px;cursor:pointer;border-bottom:1px solid var(--line)}
.sug:last-child{border-bottom:none}
.sug:hover,.sug.active{background:var(--panel2)}
.sug .c{font-weight:800;font-family:ui-monospace,monospace;color:var(--accent-ink);min-width:64px}
.sug .n{color:var(--ink);font-size:.95rem}

/* chips / home */
.section-title{font-size:.78rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:800;margin:22px 3px 10px}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{background:var(--panel);border:1px solid var(--line);border-radius:11px;padding:9px 14px;font-size:.95rem;font-weight:700;cursor:pointer;color:var(--ink)}
.chip:hover{border-color:var(--accent)}
.chip:active{transform:scale(.97)}
.chip.mono{font-family:ui-monospace,monospace;font-weight:800}
.intro{background:var(--panel);border:1px dashed var(--line);border-radius:var(--radius);padding:18px;color:var(--muted);margin-top:14px}
.intro b{color:var(--ink)}

/* result card */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-top:16px;box-shadow:var(--shadow)}
.codeline{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.codebig{font-size:2.2rem;font-weight:900;font-family:ui-monospace,monospace;letter-spacing:.02em}
.sev{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;padding:5px 11px;border-radius:999px}
.sev.high{background:var(--hi);color:var(--hi-ink)} .sev.med{background:var(--md);color:var(--md-ink)} .sev.low{background:var(--lo);color:var(--lo-ink)}
.flag{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em;padding:5px 11px;border-radius:999px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent-ink)}
.title{font-size:1.4rem;font-weight:800;margin:12px 0 2px;line-height:1.2}
.drive{display:flex;align-items:center;gap:8px;font-size:.98rem;color:var(--ink);font-weight:600;margin-top:4px}
.dot{width:11px;height:11px;border-radius:50%;flex:0 0 auto}
.dot.high{background:var(--hi-ink)} .dot.med{background:var(--md-ink)} .dot.low{background:var(--lo-ink)}

.starthere{margin-top:18px;background:color-mix(in srgb,var(--green) 9%,var(--panel));border:1px solid color-mix(in srgb,var(--green) 30%,var(--line));border-left:4px solid var(--green);border-radius:12px;padding:14px 16px}
.starthere .lab{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--green);margin-bottom:4px}
.starthere .txt{font-size:1.08rem;font-weight:600}

h3.sec{font-size:.82rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:800;margin:20px 0 8px}
.meaning{font-size:1.05rem}
ul.pts{list-style:none} ul.pts li{position:relative;padding:8px 0 8px 26px;border-bottom:1px solid var(--line)}
ul.pts li:last-child{border-bottom:none}
ul.pts li::before{content:"";position:absolute;left:2px;top:1em;width:10px;height:10px;border-radius:3px;background:var(--accent)}
.tip{margin-top:16px;background:var(--panel2);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:12px;padding:12px 15px;font-size:.95rem;color:var(--muted)}
.tip b{color:var(--ink)}

.actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}
.btn{display:flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:12px;padding:15px 12px;font-size:1.05rem;font-weight:800;font-family:inherit;color:#fff;background:var(--accent);cursor:pointer}
.btn:active{transform:scale(.98)}
.btn svg{width:1.2em;height:1.2em;fill:currentColor}
.btn.yt{background:var(--yt)} .btn.ghost{background:var(--panel);color:var(--ink);border:1px solid var(--line)}

.listcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);margin-top:14px;overflow:hidden}
.listrow{display:flex;gap:12px;align-items:baseline;padding:13px 16px;border-bottom:1px solid var(--line);cursor:pointer}
.listrow:last-child{border-bottom:none}
.listrow:hover{background:var(--panel2)}
.listrow .c{font-family:ui-monospace,monospace;font-weight:800;color:var(--accent-ink);min-width:66px}

/* footer as a distinct band */
footer{margin-top:36px;border-top:1px solid var(--line);background:color-mix(in srgb,var(--bg) 40%,var(--panel2))}
.footinner{max-width:860px;margin:0 auto;padding:22px 16px 30px;text-align:center;color:var(--muted);font-size:.82rem;line-height:1.7}
.footinner a{font-weight:700}

/* result split: single column on phones, main + sticky rail on desktop */
.res-side{display:flex;flex-direction:column;gap:14px}
.res-main{min-width:0}

/* tablet */
@media(min-width:700px){
  .wrap{max-width:780px;padding-bottom:48px}
  html,body{font-size:calc(17.5px*var(--scale))}
  .codebig{font-size:2.4rem}
}
/* desktop / laptop */
@media(min-width:1000px){
  .wrap{max-width:1010px}
  html,body{font-size:calc(18px*var(--scale))}
  .card{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:4px 34px;align-items:start}
  .res-side{position:sticky;top:86px}
  .res-side .actions{grid-template-columns:1fr;margin-top:0}
  .home-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px 34px;align-items:start}
  .chip:hover{transform:translateY(-1px)}
}
/* large desktop */
@media(min-width:1320px){ .wrap{max-width:1120px} }
@media(hover:none){ .chip:hover{border-color:var(--line)} } /* no hover flicker on touch */

/* search row + button */
.searchrow{display:flex;gap:10px;align-items:stretch}
.searchrow #q{flex:1;min-width:0}
.searchbtn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:12px;background:var(--accent);color:#fff;font-family:inherit;font-weight:800;font-size:1.05rem;padding:0 22px;cursor:pointer;white-space:nowrap}
.searchbtn:active{transform:scale(.98)}
.searchbtn svg{width:1.2em;height:1.2em;fill:currentColor}
@media(max-width:520px){ .searchbtn{padding:0 16px} }

/* about modal */
.modal{position:fixed;inset:0;z-index:50;background:rgba(10,14,20,.55);display:flex;align-items:center;justify-content:center;padding:18px;backdrop-filter:blur(3px)}
.modal-card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:18px;max-width:540px;width:100%;padding:30px 26px 24px;box-shadow:0 20px 60px rgba(0,0,0,.25);max-height:90vh;overflow:auto}
.modal-x{position:absolute;top:10px;right:14px;border:none;background:transparent;font-size:1.9rem;line-height:1;color:var(--muted);cursor:pointer}
.mark-lg{width:56px;height:56px;border-radius:15px;margin-bottom:12px}
.modal-card h2{font-size:1.5rem;font-weight:800;margin-bottom:10px}
.modal-card p{margin-bottom:12px;font-size:1rem}
.modal-card p b{color:var(--ink)}
.coffee{display:inline-flex;align-items:center;gap:9px;margin-top:4px;background:#3d95ce;color:#fff;border-radius:12px;padding:12px 18px;font-weight:800;text-decoration:none}
.coffee svg{width:1.2em;height:1.2em;fill:currentColor}
.coffee:hover{filter:brightness(1.06)}

/* --- polish v2 (from UX review) --- */
.opt{font-weight:600;text-transform:none;letter-spacing:0;color:var(--muted);font-size:.8em}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.tbtn svg{width:1.15em;height:1.15em;fill:currentColor;display:block}
.chip{padding:11px 15px}
@media(max-width:620px){ .brandtag{display:none} }
button.sug,button.listrow{width:100%;font:inherit;text-align:left;background:var(--panel);color:var(--ink);border:none;border-bottom:1px solid var(--line)}
button.sug:last-child,button.listrow:last-child{border-bottom:none}
.sev.sev-unknown{background:var(--panel2);color:var(--muted)}
.sev .sev-i{width:.95em;height:.95em;fill:currentColor;vertical-align:-2px;margin-right:4px}
.clearlink{display:block;margin:12px auto 0;background:none;border:none;color:var(--muted);font-family:inherit;font-weight:700;font-size:.95rem;text-decoration:underline;cursor:pointer}
.clearlink:hover{color:var(--ink)}

/* --- brand-aware result notes --- */
.stdobd{display:inline-flex;align-items:center;gap:7px;margin-top:12px;background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:.82rem;font-weight:600;color:var(--muted)}
.stdobd::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--muted);opacity:.55;flex:0 0 auto}
.brandmatch{display:inline-flex;align-items:center;gap:7px;margin-top:12px;background:color-mix(in srgb,var(--accent) 10%,transparent);border:1px solid color-mix(in srgb,var(--accent) 25%,var(--line));border-radius:999px;padding:5px 12px;font-size:.82rem;font-weight:700;color:var(--accent-ink)}
.brandmatch b{color:var(--accent-ink)}
.xbrand{margin-top:14px;background:var(--md);border:1px solid color-mix(in srgb,var(--md-ink) 30%,var(--line));border-left:4px solid var(--md-ink);border-radius:12px;padding:12px 15px;font-size:.95rem;color:var(--md-ink)}
.xbrand b{color:var(--md-ink);font-weight:800}

/* --- recalls & known issues panel --- */
.recall-panel{margin-top:20px}
.recall-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.recall-count{font-size:.9rem;font-weight:700;color:var(--ink);margin-bottom:12px}
.recall-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.recall-item{border-left:3px solid var(--md-ink);background:var(--panel2);border-radius:10px;padding:10px 13px}
.recall-comp{font-weight:800;font-size:.95rem;display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.recall-date{font-weight:600;font-size:.78rem;color:var(--muted);font-family:ui-monospace,monospace;white-space:nowrap}
.recall-sum{font-size:.92rem;color:var(--muted);margin-top:3px}
.recall-foot{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;justify-content:space-between;margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
.recall-src{font-size:.78rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.recall-link{font-size:.9rem;font-weight:700}
.recall-note{margin-top:10px;font-size:.8rem;color:var(--muted);font-style:italic}