.app-layout{
  display:grid;
  grid-template-columns:var(--sidebar-w) 1fr;
  min-height:100vh;
  position:relative
}
.app-layout[data-sidebar-collapsed="true"]{grid-template-columns:78px 1fr}
.app-layout[data-sidebar-mobile-open="true"]{overflow:hidden}
.sidebar-mobile-open{overflow:hidden}
.sidebar{
  background:var(--sidebar-bg);
  color:var(--sidebar-fg);
  border-right:1px solid var(--sidebar-border);
  padding:1.1rem .95rem 1rem;
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
  backdrop-filter:blur(18px);
  box-shadow:inset -1px 0 0 rgba(255,255,255,.36)
}
.sidebar[data-collapsed="true"]{width:78px;padding:.85rem .55rem}
.sidebar[data-collapsed="true"] .sidebar__brand-copy,
.sidebar[data-collapsed="true"] .sidebar__intro{display:none}
.app-content{
  min-width:0;
  display:flex;
  flex-direction:column;
  position:relative
}
.app-content::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(680px 280px at 22% 0%,rgba(255,255,255,.58),transparent 74%),
    radial-gradient(2px 2px at 14% 7%,rgba(11,99,188,.12),transparent 55%),
    radial-gradient(2px 2px at 86% 17%,rgba(47,154,71,.1),transparent 55%);
  pointer-events:none;
  z-index:-4
}
.header{
  position:sticky;
  top:0;
  z-index:20;
  background:var(--header-bg);
  border-bottom:1px solid var(--header-border);
  backdrop-filter:blur(18px)
}
.header::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:16px;
  background:
    linear-gradient(90deg,transparent 0%,rgba(255,255,255,.8) 13%,rgba(11,99,188,.18) 46%,rgba(47,154,71,.24) 74%,transparent 100%);
  pointer-events:none
}
.footer{
  margin-top:auto;
  background:transparent;
  border-top:1px solid rgba(255,255,255,.45)
}
.container{width:min(100% - 2.4rem,var(--max-w));margin-inline:auto;padding:1.1rem 0}
.main-card{
  background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(248,251,253,.94));
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:1.35rem;
  border:1px solid rgba(255,255,255,.7);
  backdrop-filter:blur(14px)
}
.main-card>h2{
  margin:0 0 .6rem;
  line-height:1.15
}
.main-card>h2+*{
  margin-top:0!important
}
html[data-theme="dark"]{color-scheme:dark}
html[data-theme="dark"] .sidebar{
  box-shadow:inset -1px 0 0 rgba(255,255,255,.04)
}
html[data-theme="dark"] .app-content::before{
  background:
    radial-gradient(680px 280px at 22% 0%,rgba(255,255,255,.04),transparent 74%),
    radial-gradient(2px 2px at 14% 7%,rgba(99,176,255,.1),transparent 55%),
    radial-gradient(2px 2px at 86% 17%,rgba(110,210,138,.08),transparent 55%)
}
html[data-theme="dark"] .header::after{
  background:
    linear-gradient(90deg,transparent 0%,rgba(255,255,255,.06) 13%,rgba(99,176,255,.18) 46%,rgba(110,210,138,.16) 74%,transparent 100%)
}
html[data-theme="dark"] .footer{
  background:linear-gradient(180deg,rgba(7,20,30,.92),rgba(9,24,36,.94));
  border-top-color:rgba(255,255,255,.08)
}
html[data-theme="dark"] .main-card{
  background:linear-gradient(180deg,rgba(9,24,36,.96),rgba(13,31,46,.94));
  border-color:rgba(255,255,255,.06)
}
.sidebar-backdrop{
  position:fixed;
  inset:0;
  border:0;
  background:rgba(4,16,27,.48);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease;
  z-index:35
}
@media (max-width:900px){
  .app-layout,
  .app-layout[data-sidebar-collapsed="true"]{grid-template-columns:1fr}
  .sidebar{
    position:fixed;
    top:0;
    left:0;
    width:min(86vw,320px);
    height:100dvh;
    transform:translateX(-104%);
    transition:transform .22s ease,box-shadow .22s ease;
    z-index:40
  }
  .sidebar[data-mobile-open="true"]{
    transform:translateX(0);
    box-shadow:0 20px 48px rgba(0,0,0,.28)
  }
  .sidebar[data-collapsed="true"]{
    width:min(86vw,320px);
    padding:1.1rem .95rem 1rem
  }
  .sidebar[data-collapsed="true"] .sidebar__brand-copy{display:grid}
  .sidebar[data-collapsed="true"] .sidebar__section-title{display:block}
  .sidebar[data-collapsed="true"] .sidebar__section-toggle{display:flex}
  .sidebar[data-collapsed="true"] .sidebar__section{margin-top:1rem}
  .sidebar[data-collapsed="true"] .sidebar__nav{gap:.32rem}
  .sidebar[data-collapsed="true"] .sidebar__item-text{display:inline}
  .sidebar[data-collapsed="true"] .sidebar__nav-link{justify-content:flex-start;padding:.62rem .74rem}
  .sidebar__collapse-btn{display:none}
  .app-layout[data-sidebar-mobile-open="true"] .sidebar-backdrop{
    opacity:1;
    pointer-events:auto
  }
}