:root{
  --bg-base:#1B1D21;
  --bg-panel:#232629;
  --bg-panel-raised:#2A2E32;
  --deck:#17191C;
  --keycap:#F4EFE6;
  --keycap-shadow:#B9AE93;
  --keycap-edge:#DCD3BC;
  --accent:#4FD1C5;
  --accent-soft:rgba(79,209,197,0.14);
  --text-primary:#EDEBE6;
  --text-muted:#9A9691;
  --text-faint:#6B6864;
  --border:#33373C;
  --radius:14px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-primary);
  font-family:'Space Grotesk',sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}

/* ===== Topbar ===== */
.topbar{
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;
  border-bottom:1px solid var(--border);
  position:sticky;top:0;background:rgba(27,29,33,0.92);backdrop-filter:blur(8px);
  z-index:30;
}
.menu-btn{
  display:flex;flex-direction:column;justify-content:center;gap:4px;
  width:34px;height:34px;background:var(--bg-panel);border:1px solid var(--border);
  border-radius:8px;cursor:pointer;flex-shrink:0;
}
.menu-btn span{width:14px;height:2px;background:var(--text-muted);margin:0 auto;border-radius:2px;}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.05rem;letter-spacing:-0.01em;flex-shrink:0;}
.logo .mark{
  width:30px;height:30px;border-radius:7px;background:linear-gradient(155deg,var(--keycap),var(--keycap-edge));
  display:flex;align-items:center;justify-content:center;color:#2B2A26;
  font-family:'JetBrains Mono',monospace;font-weight:700;font-size:.62rem;letter-spacing:-0.02em;
  box-shadow:0 2px 0 var(--keycap-shadow), 0 4px 8px rgba(0,0,0,0.35);
  border:1px solid var(--keycap-edge);
}
.search{
  flex:1;display:flex;align-items:center;gap:8px;
  background:var(--bg-panel);border:1px solid var(--border);border-radius:10px;
  padding:8px 12px;color:var(--text-muted);font-size:.85rem;
  max-width:420px;
}
.search svg{flex-shrink:0;opacity:.6;}
.search input{background:none;border:none;outline:none;color:var(--text-primary);font-family:inherit;font-size:.85rem;width:100%;}
.search input::placeholder{color:var(--text-faint);}

/* ===== Layout ===== */
.layout{display:flex;max-width:1240px;margin:0 auto;position:relative;}

.scrim{
  position:fixed;inset:0;background:rgba(0,0,0,0.5);
  opacity:0;pointer-events:none;transition:opacity .25s;z-index:39;
}
.scrim.open{opacity:1;pointer-events:auto;}

.sidebar{
  width:230px;flex-shrink:0;
  border-right:1px solid var(--border);
  padding:20px 12px;
  height:calc(100vh - 63px);
  position:sticky;top:63px;
  overflow-y:auto;
}
.sidebar-title{
  font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;
  color:var(--text-faint);padding:0 10px 10px;font-weight:600;
}
.cat-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.cat-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 10px;border-radius:8px;font-size:.87rem;color:var(--text-muted);
  transition:background .15s;cursor:pointer;
}
.cat-list a:hover{background:var(--bg-panel);color:var(--text-primary);}
.cat-list a.active{background:var(--accent-soft);color:var(--accent);font-weight:600;}
.cat-list .count{font-size:.72rem;color:var(--text-faint);font-family:'JetBrains Mono',monospace;}
.cat-list a.active .count{color:var(--accent);opacity:.7;}

.main{flex:1;min-width:0;padding:24px 20px 60px;}

.page-head{margin-bottom:18px;}
.eyebrow{
  font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.08em;
  color:var(--accent);text-transform:uppercase;margin-bottom:6px;
}
.page-head h1{font-size:1.5rem;margin:0 0 4px;letter-spacing:-0.01em;}
.page-head p{margin:0;color:var(--text-muted);font-size:.88rem;}

.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 22px;overflow-x:auto;padding-bottom:2px;}
.tag-pill{
  font-family:'JetBrains Mono',monospace;font-size:.72rem;
  border:1px solid var(--border);color:var(--text-muted);
  padding:5px 11px;border-radius:20px;cursor:pointer;background:none;white-space:nowrap;flex-shrink:0;
}
.tag-pill.on{border-color:var(--accent);color:var(--accent);background:var(--accent-soft);}

.grid{display:grid;grid-template-columns:1fr;gap:14px;}
@media(min-width:640px){.grid{grid-template-columns:1fr 1fr;}}
@media(min-width:980px){.grid{grid-template-columns:1fr 1fr 1fr;}}

.card{
  background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px 16px 16px;display:flex;flex-direction:column;gap:14px;
  transition:border-color .15s, transform .15s;
}
.card:hover{border-color:#454a50;transform:translateY(-2px);}

.deck{
  background:var(--deck);border-radius:10px;padding:16px 10px;
  display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;
  cursor:pointer;position:relative;
}
.deck::after{
  content:"copy";position:absolute;top:6px;right:8px;
  font-family:'JetBrains Mono',monospace;font-size:.6rem;color:var(--text-faint);
  opacity:0;transition:opacity .15s;
}
.deck:hover::after{opacity:.7;}
.keycap{
  font-family:'JetBrains Mono',monospace;font-weight:600;font-size:.82rem;
  background:linear-gradient(160deg,var(--keycap),#e8e0cd);
  color:#2B2A26;
  min-width:38px;height:38px;padding:0 10px;
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 2px 0 var(--keycap-shadow), 0 5px 10px rgba(0,0,0,0.4);
  border:1px solid var(--keycap-edge);
}
.keycap.wide{min-width:56px;padding:0 12px;}
.plus{color:var(--text-faint);font-size:.9rem;font-weight:600;}

.card-title{font-size:1rem;font-weight:600;margin:0;letter-spacing:-0.005em;}
.card-blurb{font-size:.83rem;color:var(--text-muted);line-height:1.5;margin:0;}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px;border-top:1px solid var(--border);gap:8px;}
.see-also{font-size:.78rem;color:var(--accent);font-weight:600;display:flex;align-items:center;gap:4px;background:none;border:none;cursor:pointer;padding:0;font-family:inherit;}
.version-tags{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end;}
.version-tags span{
  font-family:'JetBrains Mono',monospace;font-size:.62rem;color:var(--text-faint);
  border:1px solid var(--border);border-radius:5px;padding:2px 6px;
}

.empty{color:var(--text-muted);font-size:.88rem;text-align:center;padding:40px 0;}

::-webkit-scrollbar{width:8px;}
::-webkit-scrollbar-thumb{background:var(--bg-panel-raised);border-radius:4px;}

/* ===== Mobile ===== */
@media(max-width:860px){
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;width:78%;max-width:300px;
    background:var(--bg-panel);z-index:40;height:100vh;
    transform:translateX(-100%);transition:transform .28s cubic-bezier(.4,0,.2,1);
    padding-top:26px;
  }
  .sidebar.open{transform:translateX(0);}
  .main{padding:18px 14px 40px;}
  .page-head h1{font-size:1.28rem;}
}