:root {
  --a-primary: #175c52;
  --a-primary-dark: #0e3b34;
  --a-gold: #e6a13a;
  --a-bg: #f3f5f4;
  --a-border: #e3e7e5;
  --a-sidebar-w: 260px;
}

body.admin-body {
  background: var(--a-bg);
  font-family: 'Plus Jakarta Sans', -apple-system, Segoe UI, sans-serif;
}

.admin-sidebar {
  width: var(--a-sidebar-w);
  min-height: 100vh;
  background: var(--a-primary-dark);
  color: #dcecE7;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  z-index: 1030;
  transition: transform 0.2s ease;
}
.admin-sidebar .brand {
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.admin-sidebar .brand strong { color: #fff; font-size: 1.05rem; display:block; }
.admin-sidebar .brand span { font-size: 0.75rem; color: #9fc2b8; }
.admin-sidebar .nav-section { padding: 0.75rem 1rem 0.25rem; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; color: #7fa89d; }
.admin-sidebar a.nav-link {
  color: #dcecE7;
  padding: 0.6rem 1.25rem;
  font-weight: 500;
  font-size: 0.92rem;
  border-left: 3px solid transparent;
  display: flex; align-items: center; gap: 0.6rem;
}
.admin-sidebar a.nav-link:hover, .admin-sidebar a.nav-link.active {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-left-color: var(--a-gold);
}

.admin-main { margin-left: var(--a-sidebar-w); min-height: 100vh; }
@media (max-width: 991.98px) {
  .admin-sidebar { transform: translateX(-100%); }
  .admin-sidebar.show { transform: translateX(0); }
  .admin-main { margin-left: 0; }
}

.admin-topbar {
  background: #fff;
  border-bottom: 1px solid var(--a-border);
  padding: 0.85rem 1.5rem;
  position: sticky; top: 0; z-index: 1020;
}

.admin-content { padding: 1.75rem; }

.card-admin {
  background: #fff;
  border: 1px solid var(--a-border);
  border-radius: 14px;
}

.stat-mini { border-radius: 14px; padding: 1.25rem; color: #fff; }
.stat-mini .num { font-size: 1.8rem; font-weight: 700; }
.stat-mini .label { opacity: 0.85; font-size: 0.85rem; }

.table-admin thead { background: #f3f5f4; }
.table-admin img.thumb { width: 56px; height: 56px; object-fit: cover; border-radius: 8px; }

.btn-admin-primary { background: var(--a-primary); border-color: var(--a-primary); color: #fff; }
.btn-admin-primary:hover { background: var(--a-primary-dark); border-color: var(--a-primary-dark); color: #fff; }

.form-label { font-weight: 600; font-size: 0.88rem; }
.required::after { content: " *"; color: #dc3545; }

.login-wrapper {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, var(--a-primary-dark), var(--a-primary));
}
.login-card { background: #fff; border-radius: 18px; padding: 2.5rem; width: 100%; max-width: 400px; box-shadow: 0 20px 50px rgba(0,0,0,0.25); }