:root{
  --aa15-bg:#0b0f14;
  --aa15-surface:#101725;
  --aa15-ink:#f3f7ff;
  --aa15-muted: rgba(243,247,255,.72);
  --aa15-accent:#f59e0b;
  --aa15-border: rgba(243,247,255,.12);
}
html,body{background:var(--aa15-bg);color:var(--aa15-ink);}
a{color:inherit;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.aa15-header{position:sticky;top:0;z-index:50;background:rgba(11,15,20,.84);backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--aa15-border);padding:.9rem 0;}
.aa15-header-inner{display:grid;grid-template-columns:120px 1fr 1fr;gap:1rem;align-items:center;}
.aa15-logo-link{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:inherit;justify-content:center;}
.aa15-logo img{height:34px;width:auto;display:block;}
.aa15-logo-text{font-weight:900;letter-spacing:.2px;display:none;}
.aa15-logo.is-fallback img{display:none;}
.aa15-logo.is-fallback .aa15-logo-text{display:inline;}
.aa15-title{font-weight:900;}
.aa15-tag{color:var(--aa15-muted);max-width:70ch;}

.aa15-grid{
  display:grid;
  grid-template-areas:
    "rail header header"
    "rail main aside";
  grid-template-columns: 64px 1fr 320px;
  gap: 1rem;
  padding: 1rem 0 2rem;
}
.aa15-rail{grid-area:rail;position:sticky;top:92px;align-self:start;}
.aa15-main{grid-area:main;min-width:0;}
.aa15-aside{grid-area:aside;}

.aa15-rail-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.45rem;}
.aa15-rail-item{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:16px;border:1px solid var(--aa15-border);text-decoration:none;background:rgba(255,255,255,.02);}
.aa15-rail-item:hover{background:rgba(245,158,11,.08);}
.aa15-rail-item.is-active{background:rgba(245,158,11,.14);border-color:rgba(245,158,11,.22);}
.aa15-dot{width:10px;height:10px;border-radius:999px;background:var(--aa15-muted);}
.aa15-rail-item.is-active .aa15-dot{background:var(--aa15-accent);box-shadow:0 0 0 6px rgba(245,158,11,.12);}

.aa15-paper{border:1px solid var(--aa15-border);border-radius:18px;background:rgba(16,23,37,.72);backdrop-filter:saturate(150%) blur(10px);padding:1.1rem;}
.aa15-box{border:1px solid var(--aa15-border);border-radius:18px;background:rgba(16,23,37,.55);backdrop-filter:saturate(150%) blur(10px);padding:1rem;margin-bottom:1rem;}
.aa15-box-title{font-weight:900;margin-bottom:.5rem;}
.aa15-list{margin:0;padding-left:1.1rem;}
.aa15-list a{text-decoration:none;}
.aa15-list a:hover{text-decoration:underline;}

.aa15-drawer{position:fixed;inset:0;display:none;align-items:stretch;justify-content:flex-end;background:rgba(0,0,0,.45);z-index:70;}
.aa15-drawer.is-open{display:flex;}
.aa15-drawer-panel{width:min(380px, 92vw);background:rgba(16,23,37,.96);border-left:1px solid var(--aa15-border);padding:1rem;}
.aa15-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:.5rem;}
.aa15-drawer-list{list-style:none;margin:0;padding:0;display:grid;gap:.25rem;}
.aa15-drawer-link{display:block;text-decoration:none;color:inherit;padding:.55rem .65rem;border-radius:14px;border:1px solid transparent;}
.aa15-drawer-link:hover{border-color:rgba(243,247,255,.18);}
.aa15-drawer-link.is-active{background:rgba(245,158,11,.12);border-color:rgba(245,158,11,.22);}

#footer{border-top:1px solid var(--aa15-border);padding:1.25rem 0;background:rgba(16,23,37,.35);}
#footer .container{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;}
#footer .social{display:flex;gap:.5rem;}
#footer .social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:14px;border:1px solid var(--aa15-border);text-decoration:none;background:rgba(255,255,255,.02);}

@media (max-width: 1000px){
  .aa15-header-inner{grid-template-columns:1fr;}
  .aa15-grid{grid-template-areas:"header" "main" "aside";grid-template-columns:1fr;}
  .aa15-rail{display:none;}
}