.app{
  display:grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar{
  padding: 1.25rem;
  border-right: var(--border);
  background: rgba(15,28,46,0.55);
  backdrop-filter: blur(8px);
}

.main{
  display:flex;
  flex-direction:column;
  min-width: 0;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding: 1.25rem 1.5rem;
  border-bottom: var(--border);
  background: rgba(22,38,61,0.65);
  backdrop-filter: blur(8px);
}

.content{
  padding: 1.5rem;
  max-width: var(--max);
  width: 100%;
}

.footer{
  margin-top:auto;
  display:flex;
  justify-content:space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-top: var(--border);
  background: rgba(22,38,61,0.55);
  backdrop-filter: blur(8px);
}

.grid-2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

@media (max-width: 980px){
  .app{grid-template-columns: 1fr}
  .sidebar{border-right:none;border-bottom: var(--border)}
  .grid-2{grid-template-columns: 1fr}
}