:root{
  --bg:#0b0d12;--panel:#12151d;--panel2:#171b25;--line:#232838;--line2:#2c3345;
  --text:#e7eaf2;--dim:#9aa3b8;--faint:#6b7388;--accent:#6ea8ff;--accent2:#9d7bff;
  --green:#34d399;--amber:#fbbf24;--red:#f87171;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{background:var(--bg);color:var(--text);font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
/* header */
.top{position:sticky;top:0;z-index:50;display:flex;gap:16px;align-items:center;justify-content:space-between;
  flex-wrap:wrap;padding:14px 20px;background:rgba(11,13,18,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;min-width:260px}
.logo{font-size:20px;color:var(--accent)}
.brand h1{font-size:18px;letter-spacing:.02em}
.brand p{font-size:12px;color:var(--dim)}.brand b{color:var(--accent)}
.controls{display:flex;gap:12px;align-items:center;flex:1;max-width:800px;flex-wrap:wrap}
#q{flex:1;min-width:180px;padding:9px 14px;border-radius:10px;border:1px solid var(--line2);
  background:var(--panel);color:var(--text);font-size:14px;outline:none;transition:border .15s}
#q:focus{border-color:var(--accent)}
#sort{padding:8px 12px;border-radius:10px;border:1px solid var(--line2);background:var(--panel);
  color:var(--text);font-size:13px;outline:none;cursor:pointer}
#sort:focus{border-color:var(--accent)}
.chk{display:flex;gap:7px;align-items:center;font-size:13px;color:var(--dim);cursor:pointer;white-space:nowrap}
.chk input{accent-color:var(--accent)}
/* nav */
.nav{position:sticky;top:62px;z-index:40;display:flex;gap:6px;overflow-x:auto;padding:8px 20px;
  background:rgba(11,13,18,.8);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);scrollbar-width:thin}
.nav a{display:inline-flex;gap:7px;align-items:center;padding:5px 11px;border-radius:99px;white-space:nowrap;
  font-size:12.5px;color:var(--dim);text-decoration:none;border:1px solid transparent;transition:.15s}
.nav a:hover{color:var(--text);border-color:var(--line2)}
.nav a b{font-size:10.5px;color:var(--faint);font-weight:600}
main{max-width:1280px;margin:0 auto;padding:24px 20px 60px;min-height:50vh}
.sec{margin-bottom:34px;scroll-margin-top:110px}
.sec-head{display:flex;align-items:baseline;gap:10px;margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.sec-head h2{font-size:17px;font-weight:650}
.sec-head .sub{font-size:12px;color:var(--faint);font-weight:400}
.sec-head .count{font-size:12px;color:var(--faint)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:10px}
/* cards */
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:13px 15px;
  display:flex;flex-direction:column;gap:7px;transition:transform .12s,border-color .12s,background .12s;
  content-visibility:auto;contain-intrinsic-size:auto 120px}
.card:hover{transform:translateY(-1px);border-color:var(--line2);background:var(--panel2)}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.card h3{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.5px;font-weight:600;
  color:var(--text);word-break:break-word;line-height:1.3}
.card h3 a.skill-link{color:inherit}
.card h3 a.skill-link:hover{color:var(--accent);text-decoration:none}
.pill{flex-shrink:0;font-size:10.5px;padding:2px 8px;border-radius:99px;font-weight:600;letter-spacing:.03em}
.pill.hot{color:#052e1f;background:var(--green)}
.pill.warm{color:#3d2a04;background:var(--amber)}
.pill.cold{color:var(--faint);background:var(--panel2);border:1px solid var(--line2)}
.pill.sync{color:#052e1f;background:var(--green)}
.pill.upd{color:#3d2a04;background:var(--amber);animation:blink 2.4s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.55}}
.banner{margin:14px auto;max-width:1280px;padding:10px 16px;border-radius:12px;font-size:13.5px;color:#3d2a04;
  background:var(--amber);border:1px solid #e5a83c;display:flex;gap:8px;align-items:center}
.banner a{color:#3d2a04;font-weight:600;text-decoration:underline}
.banner code{background:rgba(0,0,0,.12);padding:2px 7px;border-radius:6px;font-size:12px}
.desc{font-size:13px;color:var(--dim);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.meta{font-size:11px;color:var(--faint);margin-top:auto}
.meta .src{word-break:break-all}
.meta .src a{color:var(--dim)}
.meta .src a:hover{color:var(--accent)}
/* states */
.state{padding:40px 20px;text-align:center;color:var(--dim)}
.state.error{color:var(--red)}
.hidden{display:none !important}
/* help overlay */
.overlay{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.6);backdrop-filter:blur(4px);padding:20px}
.overlay-box{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px 26px;max-width:360px;width:100%}
.overlay-box h3{margin-bottom:12px;font-size:16px}
.overlay-box ul{list-style:none;display:flex;flex-direction:column;gap:8px;margin-bottom:18px;color:var(--dim);font-size:13px}
.overlay-box li{display:flex;justify-content:space-between;gap:12px}
kbd{font-family:ui-monospace,monospace;background:var(--panel2);border:1px solid var(--line2);border-radius:4px;padding:1px 6px;font-size:11px;color:var(--text)}
.btn{padding:7px 14px;border-radius:8px;border:1px solid var(--line2);background:var(--panel2);color:var(--text);cursor:pointer;font-size:13px}
.btn:hover{background:var(--line)}
/* footer */
footer{padding:26px 20px;text-align:center;font-size:12px;color:var(--faint);border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:center;align-items:center}
.help-hint{margin-left:auto}
@media (max-width:720px){
  .top{justify-content:flex-start}
  .controls{max-width:none}
  #q{min-width:100%}
  .nav{top:auto;position:static}
  .grid{grid-template-columns:1fr 1fr}
  .card h3{font-size:12.5px}
  .help-hint{margin-left:0;width:100%}
}
@media (max-width:480px){.grid{grid-template-columns:1fr}}