html, body { width: 100%; height: 100%; margin: 0; }

/*Shell layout*/
#shell { display: flex; width: 100%; height: 100%; overflow: hidden; }

#nav-bar {
  flex-shrink: 0; width: 270px; height: 100%;
  overflow-y: auto; overflow-x: hidden;
  background: #2c2c2c; color: #dbdbdb;
  font-size: medium; font-family: 'Kanit', sans-serif;
  -webkit-user-select: none; user-select: none;
  transition: width 0.15s ease;
}
#nav-bar.hidden { width: 0; overflow: hidden; }

#router-target { flex: 1 1 auto; height: 100%; overflow: auto; position: relative; }

/*Nav links*/
#nav-bar a {
  text-decoration: none; display: block;
  padding: 0.25rem 0 0.25rem 0.75rem;
  color: #3e9feb; white-space: nowrap;
}
#nav-bar a:hover { background: rgba(204,204,204,0.12); }
#nav-bar a > span { padding-left: 0.5rem; }
#nav-bar a.active { background: rgba(62,159,235,0.2); font-weight: bold; }

/*Search input*/
.nav-search {
  padding: 6px 8px;
  background: #2c2c2c;
  position: sticky;
  top: 0;
  z-index: 1;
}
.nav-search input {
  width: 100%;
  box-sizing: border-box;
  padding: 5px 8px;
  border-radius: 4px;
  border: 1px solid #555;
  background: #1e1e1e;
  color: #dbdbdb;
  font-size: 0.82rem;
  font-family: 'Kanit', sans-serif;
  outline: none;
}
.nav-search input::placeholder { color: #888; }
.nav-search input:focus { border-color: #3e9feb; }

/* hidden by search filter */
.nav-item-hidden { display: none !important; }
.nav-section-hidden { display: none !important; }

/*Group labels*/
.nav-group {
  display: block; padding: 10px 0 5px 10px;
  font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.06em; cursor: default; color: #aaaaaa;
  white-space: nowrap;
}

.nav-component {
  display: block; width: 100%; cursor: pointer;
  padding: 0.25rem 0.4rem 0.25rem 0.4rem;
  color: #dbdbdb; white-space: nowrap;
  background: none; border: none;
  font: inherit; font-size: medium;
  text-align: left;
}
.nav-component:hover { background: rgba(204,204,204,0.12); }
.nav-component::before {
  content: '\25B6'; /* ▶ right */
  display: inline-block;
  font-size: 0.6rem;
  margin-right: 4px;
  transition: transform 0.15s ease;
  vertical-align: middle;
}
.nav-component[aria-expanded="true"]::before {
  transform: rotate(90deg); /* points down */
}

/*Collapsible lists*/
.nav-list {
  margin: 0; padding: 0; list-style: none;
  font-size: medium; font-family: 'Kanit', sans-serif;
  background: rgb(39,39,39);
}
.nav-list[data-state="collapsed"] { display: none; }
.nav-list[data-state="expanded"]  { display: block; }

/*Logo link — reset nav-link styles*/
.nav-logo {
  display: block;
  padding: 8px 0;
  text-decoration: none !important;
  color: #dbdbdb !important;
  background: transparent !important;
  line-height: 1;
}
.nav-logo:hover { background: rgba(204,204,204,0.08) !important; }
.nav-logo-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.nav-logo img { display: block; width: 24px; height: 24px; flex-shrink: 0; }
.nav-logo > .nav-logo-inner > span {
  padding-left: 0 !important;
  font-size: 0.85rem; color: #dbdbdb;
  white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1;
}

/*Scrollbar*/
#nav-bar::-webkit-scrollbar { width: 6px; }
#nav-bar::-webkit-scrollbar-track { background: #2c2c2c; }
#nav-bar::-webkit-scrollbar-thumb { background: #555; border-radius: 3px; }