:root {
  --forest: #1b5e3b;
  --paper: #f5f5f5;
  --line: #e5e5e5;
  --ink: #1a1a1a;
  --sidebar-width: 14rem;
  --sidebar-collapsed: 4.25rem;
  --topbar-height: 3.75rem;
}

body {
  -webkit-font-smoothing: antialiased;
}

input,
select,
textarea,
button {
  border-radius: 0;
}

table th {
  font-weight: 600;
  text-align: left;
}

.nav-icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.admin-shell {
  min-height: 100vh;
}

.admin-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 40;
  width: var(--sidebar-width);
  height: 100vh;
  background: #fff;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  transition: width 0.2s ease, transform 0.2s ease;
  overflow: hidden;
}

.admin-sidebar-brand {
  height: var(--topbar-height);
  min-height: var(--topbar-height);
  padding: 0 0.75rem 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-shrink: 0;
}

.admin-sidebar-nav {
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  overflow-y: auto;
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border: 1px solid transparent;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.875rem;
  white-space: nowrap;
}

.nav-link:hover {
  background: var(--paper);
}

.nav-link.is-active {
  background: var(--forest);
  color: #fff;
}

.nav-link-muted {
  color: #525252;
}

.nav-link-muted.is-active,
.nav-link.is-active.nav-link-muted {
  color: #fff;
}

.sidebar-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  flex-shrink: 0;
  cursor: pointer;
}

.sidebar-toggle-btn:hover {
  background: var(--paper);
}

.admin-main {
  margin-left: var(--sidebar-width);
  min-width: 0;
  min-height: 100vh;
  transition: margin-left 0.2s ease;
}

.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--topbar-height);
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.admin-content {
  min-height: calc(100vh - var(--topbar-height));
}

.mobile-only {
  display: none;
}

.sidebar-backdrop {
  position: fixed;
  inset: 0;
  z-index: 35;
  background: rgba(0, 0, 0, 0.35);
}

/* Collapsed (desktop): icons only */
html.sidebar-collapsed .admin-sidebar {
  width: var(--sidebar-collapsed);
}

html.sidebar-collapsed .admin-main {
  margin-left: var(--sidebar-collapsed);
}

html.sidebar-collapsed .brand-text,
html.sidebar-collapsed .nav-label,
html.sidebar-collapsed .brand-sub {
  display: none;
}

html.sidebar-collapsed .admin-sidebar-brand {
  justify-content: center;
  padding: 0;
}

html.sidebar-collapsed .nav-link {
  justify-content: center;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

html.sidebar-collapsed #sidebar-collapse-btn {
  margin: 0 auto;
}

/* Mobile drawer */
@media (max-width: 900px) {
  .mobile-only {
    display: inline-flex;
  }

  .admin-sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width);
    box-shadow: none;
  }

  html.sidebar-mobile-open .admin-sidebar {
    transform: translateX(0);
  }

  .admin-main {
    margin-left: 0 !important;
  }

  html.sidebar-collapsed .admin-sidebar {
    width: var(--sidebar-width);
  }

  html.sidebar-collapsed .brand-text,
  html.sidebar-collapsed .nav-label,
  html.sidebar-collapsed .brand-sub {
    display: block;
  }

  html.sidebar-collapsed .nav-link {
    justify-content: flex-start;
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  html.sidebar-collapsed .admin-sidebar-brand {
    justify-content: space-between;
    padding: 0 0.75rem 0 1rem;
  }
}