:root{
  --aa1-bg: #f7f8fb;
  --aa1-surface: #ffffff;
  --aa1-border: rgba(0,0,0,.08);
  --aa1-accent: #206bc4;
}

html,body{background:var(--aa1-bg);}
.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;}

.aa1-header{position:sticky;top:0;z-index:40;background:rgba(247,248,251,.92);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--aa1-border);padding:.8rem 0;}
#logo img{height:34px;width:auto;display:block;}

.aa1-grid{
  display:grid;
  grid-template-areas:
    "nav main aside";
  grid-template-columns: 280px 1fr 320px;
  gap: 1rem;
  padding: 1rem 0 2rem;
}
.aa1-nav{grid-area:nav;}
.aa1-main{grid-area:main;min-width:0;}
.aa1-aside{grid-area:aside;}

.aa1-nav-inner{background:var(--aa1-surface);border:1px solid var(--aa1-border);border-radius:12px;padding:.8rem;}
.aa1-nav-list{list-style:none;margin:.5rem 0 0;padding:0;display:flex;flex-direction:column;gap:.25rem;}
.aa1-nav-item a{display:block;padding:.55rem .65rem;border-radius:10px;text-decoration:none;color:inherit;border:1px solid transparent;}
.aa1-nav-item a:hover{border-color:var(--aa1-border);}
.aa1-nav-item.is-active a{background:rgba(32,107,196,.08);border-color:rgba(32,107,196,.25);}

@media (max-width: 1100px){
  .aa1-grid{grid-template-areas:"main";grid-template-columns:1fr;}
  .aa1-aside{display:none;}
  .aa1-nav{
    position:fixed;left:0;top:0;bottom:0;width:min(86vw,340px);
    transform:translateX(-105%);
    transition:transform .18s ease;
    z-index:60;
    padding:1rem;
  }
  .aa1-nav.is-open{transform:translateX(0);}
}

#footer{border-top:1px solid var(--aa1-border);padding:1.25rem 0;background:var(--aa1-surface);}
#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:12px;border:1px solid var(--aa1-border);text-decoration:none;}