/* YakNak — road-signage aesthetic, day + night themes */
:root{
  --bg:#f6f7f9;--card:#fff;--ink:#101828;--mut:#5b6472;--line:#e5e8ee;
  --pri:#1d4ed8;--pri-ink:#fff;--accent:#facc15;
  --ok:#15803d;--ok-bg:#e8f7ee;--mid:#b45309;--mid-bg:#fef3e2;--bad:#b91c1c;--bad-bg:#fdecec;--na:#94a3b8;--na-bg:#f1f5f9;
  --r:14px;
}
:root[data-theme="dark"]{
  --bg:#0b0f17;--card:#121826;--ink:#e7ecf4;--mut:#8b94a7;--line:#1f2937;
  --pri:#3b82f6;--pri-ink:#fff;--accent:#eab308;
  --ok:#4ade80;--ok-bg:#0c2416;--mid:#fbbf24;--mid-bg:#271d07;--bad:#f87171;--bad-bg:#2a0f0f;--na:#64748b;--na-bg:#141b29;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--ink)}
a{color:inherit;text-decoration:none}
.wrap{max-width:980px;margin:0 auto;padding:0 16px}
/* header */
.hd{position:sticky;top:0;z-index:40;background:var(--card);border-bottom:2px solid var(--pri);box-shadow:0 1px 0 var(--accent)}
.hd-in{display:flex;align-items:center;gap:10px;padding:10px 16px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:18px;letter-spacing:-.02em}
.logo-mark{border-radius:9px;flex-shrink:0}
.ic{vertical-align:-3px;flex:none}
.search{flex:1;min-width:80px;display:flex;align-items:center;gap:8px;border:1.5px solid var(--line);background:var(--bg);border-radius:10px;padding:0 12px;color:var(--mut)}
.search:focus-within{outline:2px solid var(--pri);border-color:transparent}
#q{flex:1;min-width:60px;border:none;background:transparent;color:var(--ink);padding:9px 0;font-size:15px}
#q:focus{outline:none}
.btn-ai{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--pri);color:var(--pri);background:transparent;border-radius:10px;padding:8px 12px;font-weight:700;cursor:pointer;white-space:nowrap}
.langs{display:flex;border:1.5px solid var(--line);border-radius:10px;overflow:hidden}
.langs a{padding:7px 9px;font-size:12.5px;font-weight:700;color:var(--mut)}
.langs a.on{background:var(--pri);color:var(--pri-ink)}
.btn-theme{display:grid;place-items:center;border:1.5px solid var(--line);background:transparent;color:var(--ink);border-radius:10px;width:38px;height:38px;cursor:pointer}
.btn-theme .ic{vertical-align:0}
.ic-sun{display:none}
:root[data-theme="dark"] .ic-sun{display:inline}
:root[data-theme="dark"] .ic-moon{display:none}
/* tabs */
.tabs{display:flex;gap:8px;padding-top:12px;padding-bottom:4px;overflow-x:auto;scrollbar-width:none}
.tabs a{flex:0 0 auto;padding:9px 16px;border:1.5px solid var(--line);border-radius:11px;background:var(--card);font-weight:700;font-size:14.5px}
.tabs a.on{background:var(--pri);color:var(--pri-ink);border-color:var(--pri)}
/* type */
h1{font-size:clamp(24px,4.5vw,34px);letter-spacing:-.02em;line-height:1.15;margin:18px 0 6px}
.sub{color:var(--mut);margin-bottom:14px;max-width:640px}
h2{font-size:clamp(19px,3vw,24px);letter-spacing:-.01em;margin:0 0 12px}
.kicker{font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--pri);margin-bottom:2px}
.kicker .ic{vertical-align:-2px}
.ask-inline{display:inline-flex;align-items:center;gap:7px}
.answer-tag .ic{vertical-align:-2px}
.ai-head b{display:inline-flex;align-items:center;gap:6px}
.ai-form button{display:grid;place-items:center}
.ctw .ic{vertical-align:-3px;margin-right:3px;opacity:.75}
.chip{display:inline-flex;align-items:center;gap:6px}
.fastest small{display:flex;align-items:center;gap:5px}
.sec{margin:34px 0}
/* answer box (GEO) */
.answer{background:var(--card);border:1.5px solid var(--pri);border-left-width:5px;border-radius:var(--r);padding:16px 18px;margin:14px 0 6px}
.answer-tag{font-size:12px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--pri);margin-bottom:6px}
.answer p{font-size:16.5px}
.answer-meta{color:var(--mut);font-size:13px;margin-top:8px}
.sources{color:var(--mut);font-size:13px;margin:8px 0 16px}
.sources a{text-decoration:underline}
/* chips */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.chip{border:1.5px solid var(--line);background:var(--card);color:var(--ink);padding:8px 14px;border-radius:999px;font-weight:700;font-size:14px;cursor:pointer}
.chip.on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
/* fastest */
.fastest{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--ok-bg);border:1.5px solid var(--ok);border-radius:var(--r);padding:13px 16px;margin:10px 0 18px}
.fastest small{display:block;font-size:11.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--ok)}
.fastest b{font-size:17px}
.fastest .fw{text-align:right}.fastest .fw b{font-size:22px;font-variant-numeric:tabular-nums}
/* rows */
.border-sec{margin:26px 0}
.rows{display:flex;flex-direction:column;gap:10px;margin-top:10px}
.row{display:flex;align-items:flex-start;gap:12px;background:var(--card);border:1.5px solid var(--line);border-radius:var(--r);padding:13px 14px;transition:border-color .15s}
.row:hover{border-color:var(--pri)}
.dot{flex:0 0 12px;width:12px;height:12px;border-radius:50%;margin-top:6px}
.s-ok{--c:var(--ok)}.s-mid{--c:var(--mid)}.s-bad{--c:var(--bad)}.s-na{--c:var(--na)}
.dot{background:var(--c,#999)}
.row-main{flex:1;min-width:0}
.row h3{font-size:16.5px;margin-bottom:8px}
.dirs{display:flex;gap:10px;flex-wrap:wrap}
.dir{flex:1;min-width:130px;background:var(--bg);border-radius:10px;padding:7px 12px}
.dir small{display:block;font-size:11px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--mut)}
.dir b{font-size:19px;font-variant-numeric:tabular-nums}
.cts{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:8px;font-size:13.5px;color:var(--mut)}
.ctw i{font-style:normal;margin-right:3px}
.age{margin-left:auto;font-size:12.5px}
.chev{color:var(--mut);font-size:22px;margin-top:4px}
.more{display:inline-block;margin-top:12px;font-weight:700;color:var(--pri)}
/* crossing page */
.bc{display:flex;gap:8px;align-items:center;font-size:13.5px;color:var(--mut);padding-top:14px;flex-wrap:wrap}
.bc a{text-decoration:underline}
.bc .sep{opacity:.6}
.dirgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin:16px 0 6px}
.dircard{background:var(--card);border:1.5px solid var(--line);border-top:4px solid var(--c,var(--line));border-radius:var(--r);padding:14px 16px}
.dircard small{font-size:11.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--mut)}
.bigw{display:block;font-size:34px;font-variant-numeric:tabular-nums;letter-spacing:-.02em;margin:2px 0}
.sevlbl{font-size:13px;font-weight:700;color:var(--c,var(--mut))}
.dircard dl{margin-top:12px;border-top:1px solid var(--line);padding-top:10px;display:flex;flex-direction:column;gap:6px}
.dircard dl div{display:flex;justify-content:space-between;font-size:14.5px}
.dircard dd{font-variant-numeric:tabular-nums;font-weight:700}
.upd{color:var(--mut);font-size:13.5px;margin:6px 0 4px}
/* tables */
.tbl-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;background:var(--card);border:1.5px solid var(--line);border-radius:var(--r);overflow:hidden;font-size:14.5px}
caption{caption-side:top;text-align:left;font-size:12px;color:var(--mut);padding:8px 12px 0}
th,td{text-align:left;padding:9px 12px;border-top:1px solid var(--line)}
thead th{background:var(--bg);font-size:12.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--mut);border-top:none}
tbody th{font-weight:600;color:var(--mut);width:44%}
td{font-variant-numeric:tabular-nums}
/* faq */
.faq{display:flex;flex-direction:column;gap:8px}
details{background:var(--card);border:1.5px solid var(--line);border-radius:12px;padding:0 16px}
summary{cursor:pointer;padding:13px 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::after{content:"+";font-size:20px;color:var(--mut)}
details[open] summary::after{content:"–"}
summary h3{font-size:15.5px;font-weight:700}
details p{padding:0 0 14px;color:var(--mut)}
/* misc */
.steps{margin:10px 0 0 20px;display:flex;flex-direction:column;gap:8px}
.srcs{margin-left:20px;display:flex;flex-direction:column;gap:6px}
.srcs a,.ext{text-decoration:underline}
.camgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.cam{position:relative;background:var(--card);border:1.5px solid var(--line);border-radius:12px;padding:38px 14px 12px}
.cam b{display:block;font-size:15px}
.cam small{color:var(--mut)}
.live{position:absolute;top:10px;left:12px;background:var(--bad);color:#fff;font-size:10.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;border-radius:5px;padding:2px 7px}
.sitemap{margin:16px 0 0 20px;columns:2;gap:30px}
.sitemap a{text-decoration:underline;line-height:1.9}
.ask-inline{display:inline-block;margin-top:12px;border:1.5px dashed var(--pri);color:var(--pri);background:transparent;border-radius:10px;padding:9px 14px;font-weight:700;font-size:14px;cursor:pointer}
/* footer */
.ft{margin-top:44px;background:var(--card);border-top:1.5px solid var(--line);padding:26px 0 18px}
.ft-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:26px}
.ft h4{font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:var(--mut);margin:14px 0 6px}
.ft ul{list-style:none}
.ft li{line-height:1.9;font-size:14px}
.ft a:hover{color:var(--pri)}
.cols{columns:2;gap:22px}
.ft-note{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);color:var(--mut);font-size:12.5px}
/* AI panel */
.ai-panel{position:fixed;right:14px;bottom:14px;z-index:60;width:min(400px,calc(100vw - 28px));height:min(520px,70vh);background:var(--card);border:1.5px solid var(--pri);border-radius:16px;display:flex;flex-direction:column;box-shadow:0 18px 50px rgba(0,0,0,.25)}
.ai-panel[hidden]{display:none}
.ai-head{display:flex;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--line)}
.ai-ctx{font-size:12px;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:3px 10px;color:var(--mut);max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#ai-close{margin-left:auto;border:none;background:transparent;color:var(--mut);font-size:16px;cursor:pointer}
.ai-log{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.ai-hint{color:var(--mut);font-size:13px}
.ai-msg{max-width:88%;padding:9px 13px;border-radius:13px;font-size:14.5px;white-space:pre-wrap}
.ai-user{align-self:flex-end;background:var(--pri);color:var(--pri-ink)}
.ai-bot{align-self:flex-start;background:var(--bg);border:1px solid var(--line)}
.ai-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
#ai-in{flex:1;border:1.5px solid var(--line);background:var(--bg);color:var(--ink);border-radius:10px;padding:10px 12px;font-size:14.5px}
.ai-form button{border:none;background:var(--pri);color:var(--pri-ink);border-radius:10px;padding:0 16px;font-size:16px;cursor:pointer}
@media(max-width:720px){
  .hd-in{flex-wrap:wrap}
  #q{order:5;flex-basis:100%}
  .ft-grid{grid-template-columns:1fr}
  .sitemap{columns:1}
}