@charset "UTF-8";
header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(1.2) blur(4px);
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  border-bottom: 1px solid var(--border);
}
.header-container {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem;
}
.nav-left {
  display: flex;
  gap: 1rem;
  min-width: 0;
}
.nav-toggle-checkbox {
  display: none;
}
.nav-hamburger {
  display: none;
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius);
  user-select: none;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav-hamburger:hover {
  background: color-mix(in oklab, hsl(var(--primary)) 12%, var(--surface));
  color: hsl(var(--primary));
}
@media (max-width: 640px) {
  .header-container {
    padding: 0.75rem;
  }
  .nav-hamburger {
    display: inline-flex;
  }
  .nav-left {
    display: none;
    position: absolute;
    top: 100%;
    left: 0.75rem;
    right: 0.75rem;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: 0.5rem;
    padding: 0.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 4px 12px color-mix(in oklab, #000 10%, transparent);
    max-height: calc(100vh - 5rem);
    overflow-y: auto;
  }
  #nav-toggle:checked ~ .nav-left {
    display: flex;
  }
  .nav-point {
    padding: 0.75rem 1rem;
    white-space: normal;
  }
  .nav-left .dropdown-menu > .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0 0 0 1rem;
    margin-top: 0.25rem;
    min-width: 0;
  }
}
.nav-point {
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  transition: background 0.25s ease, color 0.25s ease, transform 0.15s ease;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.nav-point .tkey-icon {
  flex-shrink: 0;
  opacity: 0.85;
}
.nav-point:hover {
  background: color-mix(in oklab, hsl(var(--primary)) 15%, var(--surface));
  color: hsl(var(--primary));
  transform: translateY(-2px);
}
.nav-point.active {
  background: color-mix(in oklab, hsl(var(--primary)) 20%, var(--surface));
  color: hsl(var(--primary));
  font-weight: 500;
}
.user-menu {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.system-load-badge {
  width: 12px;
  height: 12px;
  padding: 0;
  border-radius: 50%;
  background: var(--muted);
  flex: none;
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.system-load-badge[data-status="ok"] {
  background: hsl(var(--color-success));
}
.system-load-badge[data-status="warning"] {
  background: hsl(var(--color-warning));
}
.system-load-badge[data-status="critical"] {
  background: hsl(var(--color-error));
  animation: system-load-badge-pulse 1.6s ease-in-out infinite;
}
.system-load-badge:hover {
  transform: none;
}
@keyframes system-load-badge-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 color-mix(in oklab, hsl(var(--color-error)) 45%, transparent);
  }
  50% {
    box-shadow: 0 0 0 5px color-mix(in oklab, hsl(var(--color-error)) 0%, transparent);
  }
}
.user-icon {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  padding: 0.25rem;
  border-radius: 50%;
  transition: background 0.2s, color 0.2s;
}
.user-icon:hover {
  background: color-mix(in oklab, var(--primary) 12%, var(--surface));
  color: hsl(var(--primary));
}
.dropdown-menu {
  position: relative;
}
.dropdown {
  position: absolute;
  top: 110%;
  left: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem;
  min-width: 160px;
  box-shadow: 0 4px 12px color-mix(in oklab, #000 10%, transparent);
  opacity: 0;
  transform: translateY(-0.5rem);
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0.25s;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.user-menu .dropdown {
  left: auto;
  right: 0;
}
.dropdown a {
  padding: 0.5rem;
  border-radius: var(--radius);
  transition: background 0.2s ease, color 0.2s ease;
}
.dropdown a:hover {
  background: color-mix(in oklab, hsl(var(--primary)) 15%, var(--surface));
  color: hsl(var(--primary));
}
.dropdown-menu:hover .dropdown,
.dropdown-menu:focus-within .dropdown {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  transition-delay: 0s;
}