:root{
  --bg:#081120; --panel:#0d1b2e; --panel2:#0a1626; --line:rgba(20,224,200,.16);
  --teal:#14e0c8; --teal-dim:rgba(20,224,200,.55); --amber:#ffb347; --gold:#ffd479;
  --text:#cfe3ef; --muted:#7d95a8; --term-bg:#050b14; --err:#ff6b7a; --ok:#5fe8a0;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:'Exo 2',sans-serif;height:100vh;display:flex;flex-direction:column;overflow:hidden}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(1200px 600px at 80% -10%,rgba(20,224,200,.06),transparent 60%),
             radial-gradient(900px 500px at 10% 110%,rgba(255,179,71,.05),transparent 55%)}
header{display:flex;align-items:center;gap:14px;padding:10px 18px;border-bottom:1px solid var(--line);background:var(--panel2);z-index:2}
.logo{width:34px;height:34px;border:2px solid var(--teal);border-radius:6px;display:grid;place-items:center;
  font-family:'Orbitron';font-weight:900;color:var(--teal);font-size:15px;letter-spacing:1px;
  box-shadow:0 0 14px rgba(20,224,200,.25) inset,0 0 10px rgba(20,224,200,.15)}
h1{font-family:'Orbitron';font-size:15px;font-weight:700;letter-spacing:2.5px;text-transform:uppercase}
h1 span{color:var(--teal)}
.tagline{font-size:11px;color:var(--muted);letter-spacing:1px;margin-top:2px}
.hd-right{margin-left:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.btn.nav{letter-spacing:1px;text-transform:uppercase;font-size:11px;font-family:'Orbitron';font-weight:500}
.btn.nav.active{color:var(--teal);border-color:var(--teal-dim);box-shadow:0 0 10px rgba(20,224,200,.12) inset}
select,button.btn,a.btn{background:var(--panel);border:1px solid var(--line);color:var(--text);
  font-family:'Exo 2';font-size:12.5px;padding:7px 10px;border-radius:6px;cursor:pointer;
  display:inline-flex;align-items:center;text-decoration:none}
select:focus,button.btn:focus,a.btn:focus{outline:2px solid var(--teal-dim);outline-offset:1px}
button.btn:hover,a.btn:hover{border-color:var(--teal-dim)}
button.btn.gold,a.btn.gold{color:var(--gold);border-color:rgba(255,212,121,.35)}
.variation{font-size:11px;color:var(--muted);letter-spacing:.5px}
main{flex:1;display:grid;grid-template-columns:360px 1fr;min-height:0;z-index:1}
/* ---------- sidebar ---------- */
aside{border-right:1px solid var(--line);background:var(--panel2);overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:13px 14px}
.card h2{font-family:'Orbitron';font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--teal);margin-bottom:9px;display:flex;align-items:center;gap:8px}
.card h2::after{content:"";flex:1;height:1px;background:var(--line)}
.diff{display:inline-block;font-size:10px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
  padding:3px 8px;border-radius:4px;border:1px solid;margin-bottom:8px}
.diff.d0{color:var(--ok);border-color:rgba(95,232,160,.4)}
.diff.d1{color:var(--teal);border-color:var(--teal-dim)}
.diff.d2{color:var(--amber);border-color:rgba(255,179,71,.45)}
.diff.d3{color:var(--err);border-color:rgba(255,107,122,.45)}
.brief{font-size:13px;line-height:1.55}
.brief b{color:var(--gold);font-weight:600}
.brief code{font-family:Consolas,'Cascadia Mono',monospace;font-size:12px;color:var(--teal);background:rgba(20,224,200,.08);padding:1px 5px;border-radius:4px}
/* sysinfo */
.sys{font-family:Consolas,'Cascadia Mono',monospace;font-size:12px;line-height:1.7}
.sys .k{color:var(--muted);display:inline-block;width:86px}
.sys .v{color:var(--text)}
.sys .v.t{color:var(--teal)}
/* tasks */
.task{display:flex;gap:10px;padding:9px 4px;border-bottom:1px dashed rgba(125,149,168,.18);font-size:13px;line-height:1.45}
.task:last-child{border-bottom:none}
.tick{flex:0 0 18px;height:18px;margin-top:1px;border:1.5px solid var(--muted);border-radius:4px;display:grid;place-items:center;font-size:12px;color:var(--bg);transition:all .25s}
.task.done .tick{background:var(--teal);border-color:var(--teal)}
.task.done .tick::after{content:"✓";font-weight:900}
.task.done .txt{color:var(--muted);text-decoration:line-through;text-decoration-color:rgba(125,149,168,.5)}
.task .txt code{font-family:Consolas,monospace;font-size:12px;color:var(--teal)}
.hintbtn{display:block;margin-top:5px;background:none;border:none;color:var(--amber);font-family:'Exo 2';font-size:11px;letter-spacing:.5px;cursor:pointer;padding:0;text-align:left}
.hintbtn:hover{text-decoration:underline}
.hint{display:none;margin-top:5px;font-size:12px;color:var(--gold);background:rgba(255,179,71,.07);border-left:2px solid var(--amber);padding:6px 9px;border-radius:0 5px 5px 0;line-height:1.5}
.hint code{font-family:Consolas,monospace;font-size:11.5px}
.hint.show{display:block}
.progress-wrap{height:7px;background:rgba(125,149,168,.15);border-radius:4px;overflow:hidden;margin-top:10px}
.progress{height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--gold));transition:width .4s;border-radius:4px}
.plabel{font-size:11px;color:var(--muted);margin-top:5px;text-align:right;letter-spacing:.5px}
/* reference drawer */
details.ref summary{cursor:pointer;font-family:'Orbitron';font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--muted);padding:4px 0}
details.ref summary:hover{color:var(--teal)}
.reftable{width:100%;font-size:11.5px;margin-top:8px;border-collapse:collapse}
.reftable td{padding:4px 6px;border-bottom:1px dashed rgba(125,149,168,.15);vertical-align:top}
.reftable td:first-child{font-family:Consolas,monospace;color:var(--teal);white-space:nowrap}
.reftable td:last-child{color:var(--muted)}
/* ---------- terminal ---------- */
.term-col{display:flex;flex-direction:column;min-width:0;min-height:0}
.term-bar{display:flex;align-items:center;gap:8px;padding:8px 14px;background:#0b2038;border-bottom:1px solid rgba(20,224,200,.12);font-size:12px;color:var(--muted)}
.dots span{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:5px}
.dots span:nth-child(1){background:#ff5f57}.dots span:nth-child(2){background:#febc2e}.dots span:nth-child(3){background:#28c840}
.term-title{font-family:Consolas,monospace;letter-spacing:.5px}
#term{flex:1;overflow-y:auto;background:var(--term-bg);padding:14px 16px;font-family:'Cascadia Code',Consolas,'Courier New',monospace;font-size:13.5px;line-height:1.5;white-space:pre-wrap;word-break:break-word}
#term .in{color:#eaf4fb}
#term .in .pr{color:var(--teal)}
#term .out{color:#c3d5e2}
#term .err{color:var(--err)}
#term .ok{color:var(--ok)}
#term .sys-line{color:var(--muted)}
#term .banner{color:var(--gold)}
.input-row{display:flex;align-items:center;background:var(--term-bg);border-top:1px solid rgba(20,224,200,.1);padding:9px 16px 13px;font-family:'Cascadia Code',Consolas,monospace;font-size:13.5px}
.input-row .pr{color:var(--teal);white-space:pre}
#cmd{flex:1;background:none;border:none;color:#eaf4fb;font:inherit;caret-color:var(--teal);padding-left:8px}
#cmd:focus{outline:none}
/* completion overlay */
#doneBanner{display:none;margin:0 16px 10px;border:1px solid rgba(255,212,121,.4);background:linear-gradient(135deg,rgba(255,179,71,.08),rgba(20,224,200,.06));border-radius:10px;padding:14px 16px}
#doneBanner.show{display:block;animation:pop .4s ease}
@keyframes pop{from{transform:translateY(8px);opacity:0}to{transform:none;opacity:1}}
#doneBanner h3{font-family:'Orbitron';font-size:13px;letter-spacing:2px;color:var(--gold);margin-bottom:6px}
#doneBanner p{font-size:13px;line-height:1.5}
#doneBanner .banner-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
#doneBanner .nextbtn{margin-top:0}
::-webkit-scrollbar{width:9px}
::-webkit-scrollbar-thumb{background:rgba(20,224,200,.2);border-radius:5px}
::-webkit-scrollbar-track{background:transparent}
/* ---------- dictionary ---------- */
#dictView{flex:1;overflow-y:auto;padding:22px clamp(16px,4vw,48px);z-index:1}
.dict-head{display:flex;align-items:center;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.dict-head h2{font-family:'Orbitron';font-size:16px;letter-spacing:3px;text-transform:uppercase}
.dict-head h2 span{color:var(--teal)}
#dictSearch{background:var(--panel);border:1px solid var(--line);color:var(--text);font-family:'Exo 2';font-size:13px;padding:8px 12px;border-radius:6px;min-width:240px}
#dictSearch:focus{outline:2px solid var(--teal-dim)}
#dictCount{font-size:12px;color:var(--muted)}
.dict-cat{font-family:'Orbitron';font-size:12px;letter-spacing:2.5px;text-transform:uppercase;color:var(--amber);margin:26px 0 12px;display:flex;align-items:center;gap:10px}
.dict-cat::after{content:"";flex:1;height:1px;background:rgba(255,179,71,.25)}
.dict-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:12px}
.dcard{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 15px}
.dcard .dn{font-family:'Orbitron';font-size:13px;color:var(--teal);letter-spacing:1px}
.dcard .da{font-size:11px;color:var(--gold);margin-left:8px;font-family:Consolas,monospace}
.dcard .dw{font-size:12.5px;line-height:1.5;margin:7px 0}
.dcard .ds{font-family:Consolas,monospace;font-size:11.5px;color:#a9c6d8;background:rgba(5,11,20,.7);border:1px solid rgba(20,224,200,.1);border-radius:6px;padding:6px 9px;margin:6px 0;white-space:pre-wrap;word-break:break-word}
.dcard .dex{font-family:Consolas,monospace;font-size:11.5px;color:var(--teal);margin:2px 0 2px 4px}
.dcard .dc{font-size:11.5px;color:var(--gold);font-style:italic;margin-top:7px;line-height:1.45;border-left:2px solid rgba(255,179,71,.4);padding-left:8px}
/* new-commands card */
.ncmd{display:flex;gap:9px;font-size:12.5px;line-height:1.45;padding:5px 0}
.ncmd code{font-family:Consolas,monospace;font-size:12px;color:var(--teal);white-space:nowrap}
.ncmd .nd{color:var(--muted)}
@media (max-width:880px){
  main{grid-template-columns:1fr;grid-template-rows:auto 1fr}
  aside{max-height:44vh;border-right:none;border-bottom:1px solid var(--line)}
  body{overflow:auto}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}