:root{
  --primary:#871312;
  --primary-dark:#65100f;
  --primary-soft:#f7e9e9;
  --primary-border:#e6c7c7;
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#1f2937;
  --muted:#6b7280;
  --border:#e5e7eb;
  --shadow:0 8px 24px rgba(0,0,0,.06);
}

html[data-theme="dark"]{
  --bg:#0f1115;
  --card:#171a21;
  --text:#f3f4f6;
  --muted:#9ca3af;
  --border:#2b3140;
  --shadow:0 8px 24px rgba(0,0,0,.28);
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
}
a{text-decoration:none;color:inherit}

.layout{
  display:flex;
  min-height:100vh;
}

.sidebar{
  width:300px;
  background:var(--card);
  border-right:1px solid var(--border);
  padding:20px;
  overflow:auto;
  transition:.25s ease;
}
.sidebar.collapsed{
  width:88px;
}
.sidebar.collapsed .brand-text,
.sidebar.collapsed .nav-block h4,
.sidebar.collapsed .nav-block ul,
.sidebar.collapsed .sidebar-tools{
  display:none;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:24px;
}
.brand-logo{
  width:42px;
  height:42px;
  object-fit:contain;
  border-radius:10px;
}
.brand-text{
  display:flex;
  flex-direction:column;
}
.brand-text strong{
  color:var(--primary);
  font-size:16px;
}
.brand-text span{
  color:var(--muted);
  font-size:13px;
}

.sidebar-tools{
  position:relative;
  margin-bottom:22px;
}
.sidebar-tools input{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--border);
  border-radius:12px;
  outline:none;
  background:var(--bg);
  color:var(--text);
}
.search-results{
  display:none;
  position:absolute;
  top:52px;
  left:0;
  right:0;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:12px;
  box-shadow:var(--shadow);
  z-index:30;
  overflow:hidden;
}
.search-item{
  display:block;
  padding:12px 14px;
  border-bottom:1px solid var(--border);
}
.search-item:hover{
  background:var(--primary-soft);
}
.search-item strong{
  display:block;
}
.search-item small,
.search-empty{
  color:var(--muted);
}
.search-empty{
  padding:12px 14px;
}

.nav-block{
  margin-bottom:22px;
}
.nav-block h4{
  margin:0 0 10px 0;
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--muted);
}
.nav-block ul{
  list-style:none;
  margin:0;
  padding:0;
}
.nav-block li{
  margin-bottom:6px;
}
.nav-block a{
  display:block;
  padding:10px 12px;
  border-radius:10px;
  color:var(--text);
}
.nav-block a:hover{
  background:var(--primary-soft);
}
.nav-block a.active{
  background:var(--primary);
  color:#fff;
}

.main{
  flex:1;
  display:flex;
  flex-direction:column;
  min-width:0;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 24px;
  border-bottom:1px solid var(--border);
  background:var(--card);
  position:sticky;
  top:0;
  z-index:20;
}
.topbar-left{
  display:flex;
  align-items:center;
  gap:12px;
}
.topbar-right{
  display:flex;
  align-items:center;
  gap:10px;
}
.breadcrumbs{
  display:flex;
  gap:8px;
  color:var(--muted);
  font-size:14px;
}

.icon-btn,
.btn{
  border:none;
  cursor:pointer;
  border-radius:10px;
  padding:10px 14px;
  font-weight:600;
}
.icon-btn{
  background:var(--bg);
  color:var(--text);
}
.btn-primary{
  background:var(--primary);
  color:#fff;
}
.btn-primary:hover{
  background:var(--primary-dark);
}
.btn-light{
  background:var(--bg);
  color:var(--text);
}

.doc-content{
  padding:32px;
  max-width:1100px;
}
.doc-content h1,
.doc-content h2,
.doc-content h3{
  line-height:1.2;
}
.doc-content h1{
  margin-top:0;
}
.doc-content h2{
  margin-top:32px;
  border-bottom:1px solid var(--border);
  padding-bottom:8px;
}
.doc-content p,
.doc-content li{
  line-height:1.7;
}
.doc-content code{
  background:var(--primary-soft);
  padding:2px 6px;
  border-radius:6px;
  color:var(--primary-dark);
}
.doc-content pre{
  background:#101318;
  color:#f3f4f6;
  padding:16px;
  border-radius:14px;
  overflow:auto;
}

@media (max-width: 900px){
  .sidebar{
    position:fixed;
    inset:0 auto 0 0;
    z-index:40;
    box-shadow:var(--shadow);
  }
  .sidebar.collapsed{
    transform:translateX(-100%);
    width:300px;
  }
  .doc-content{
    padding:22px;
  }
}