:root{--bg:#100e18;--panel:#171528;--panel2:#191730;--border:#2a2740;--accent:#9686cd;--accent2:#c4bbe6;--text:#ece9f4;--muted:#a9a3c0;--sb-w:240px}
*{box-sizing:border-box}
html{font-size:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,Segoe UI,Roboto,Arial;line-height:1.5}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
.accent{color:var(--accent)}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
/* header */
.hd{position:sticky;top:0;z-index:40;background:rgba(16,14,24,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--border)}
.hd-in{display:flex;align-items:center;gap:16px;height:60px}
.hd .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.4rem}
.hd .brand img{width:26px}
.hd nav{display:flex;gap:18px;margin-left:8px}
.hd nav a{color:var(--muted);font-size:.95rem}
.hd nav a:hover,.hd nav a.active{color:var(--text)}
.hd .sp{flex:1}
.hd .tools{display:flex;align-items:center;gap:8px}
.btn{border-radius:10px;font-weight:600;display:inline-block;cursor:pointer;border:1px solid var(--border);background:transparent;color:var(--text);padding:7px 12px;font-size:.9rem}
.btn-primary{background:var(--accent);color:#0f0a1c;border-color:var(--accent)}
.btn-ghost{background:transparent}
.icobtn{border:1px solid var(--border);background:var(--panel);color:var(--text);border-radius:8px;height:34px;min-width:34px;padding:0 9px;cursor:pointer;font-size:.85rem}
.icobtn:hover{background:var(--panel2)}
.hamb{display:none}
/* layout + sidebar */
.layout{display:flex;gap:24px;align-items:flex-start}
.sb{width:var(--sb-w);flex:none;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:14px;position:sticky;top:76px}
.sb a{display:block;padding:9px 11px;border-radius:9px;color:var(--muted);font-size:.95rem}
.sb a:hover{background:var(--panel2);color:var(--text)}
.sb a.active{background:var(--panel2);color:var(--accent)}
.sb .sb-h{font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:6px 8px 4px}
.main{flex:1;min-width:0;padding:24px 0 40px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:14px}
/* footer */
.ft{border-top:1px solid var(--border);background:var(--panel);margin-top:40px}
.ft-in{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px;padding:34px 0}
.ft h4{font-size:.95rem;margin:0 0 10px}
.ft a,.ft p{color:var(--muted);font-size:.9rem;display:block;margin:5px 0}
.ft .legal{grid-column:1/-1;border-top:1px solid var(--border);padding-top:14px;color:var(--muted);font-size:.8rem;text-align:center}
/* backdrop p/ mobile */
.backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:35}
/* MOBILE */
@media (max-width:820px){
  .hd nav{display:none}
  .hamb{display:inline-flex;align-items:center;justify-content:center}
  .layout{display:block}
  .sb{position:fixed;top:0;left:0;height:100%;width:78%;max-width:300px;border-radius:0;transform:translateX(-105%);transition:.25s;z-index:36;overflow:auto}
  .sb.open{transform:none}
  .backdrop.open{display:block}
  .main{padding-top:16px}
  .ft-in{grid-template-columns:1fr 1fr;gap:16px}
}
@media (max-width:480px){ .ft-in{grid-template-columns:1fr} .hd .brand{font-size:1.2rem} }
@media (max-width:820px){ .sb{display:none!important} }
.drawer{position:fixed;top:0;left:0;height:100%;width:78%;max-width:300px;background:var(--panel);border-right:1px solid var(--border);transform:translateX(-105%);transition:.25s;z-index:36;padding:16px;overflow:auto}
.drawer.open{transform:none}
.drawer a{display:block;padding:11px;color:var(--text);border-radius:8px;font-size:1rem}
.drawer a:hover{background:var(--panel2)}
.drawer .dh{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:8px 4px}