* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--bg-app);
  color: var(--text-primary);
  overflow: hidden;
  height: 100vh;
}

.app { display: flex; height: 100vh; }

.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  color: #e2e8f0;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-brand {
  padding: 1rem 0.5rem 1.1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.35rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-logo {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 72px;
  margin: 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

.brand-text strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: #f8fafc;
  line-height: 1.25;
}

.brand-text span {
  display: block;
  color: #94a3b8;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.brand-slogan {
  font-size: 0.72rem;
  color: #64748b;
  margin-top: 0.15rem;
}

.sidebar-nav { padding: 0.75rem 0.5rem; flex: 1; overflow-y: auto; }

.sidebar-footer {
  flex-shrink: 0;
  padding: 0.65rem 0.75rem 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}

.sidebar-user {
  padding: 0.65rem 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.sidebar-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 168, 232, 0.25);
  color: var(--vga-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.sidebar-user-info {
  min-width: 0;
  text-align: left;
}

.sidebar-user-info strong {
  display: block;
  font-size: 0.78rem;
  color: #f8fafc;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-info span {
  display: block;
  font-size: 0.68rem;
  color: #64748b;
  text-transform: capitalize;
}

.sidebar-footer #appVersion {
  font-size: 0.72rem;
  color: #64748b;
  line-height: 1.35;
  white-space: nowrap;
}

.nav-icon {
  font-size: 1.05rem;
  width: 1.25rem;
  text-align: center;
  flex-shrink: 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.65rem;
  color: #94a3b8;
  text-decoration: none;
  border-radius: var(--radius-sm);
  margin-bottom: 2px;
  transition: var(--transition);
  font-size: 0.82rem;
}

.nav-item:hover { background: rgba(255,255,255,0.06); color: #fff; }
.nav-item.active { background: rgba(0, 168, 232, 0.2); color: var(--vga-accent); }

.nav-item.disabled {
  opacity: 0.45;
  pointer-events: none;
}

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

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  gap: 0.65rem 0.75rem;
}

.topbar-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.topbar-date {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.btn-exit-app {
  flex-shrink: 0;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem !important;
  border: 1px solid var(--border);
  background: var(--bg-app);
}

.btn-exit-app:hover {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.4);
  color: var(--vga-danger);
}

.btn-exit-label { font-size: 0.82rem; font-weight: 600; }

.btn-icon {
  background: transparent;
  border: none;
  font-size: 1.15rem;
  cursor: pointer;
  padding: 0.35rem;
  border-radius: 8px;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.btn-icon:hover { background: var(--bg-app); }

.content {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-header h1 { font-size: 1.5rem; font-weight: 600; }
.page-header p { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.25rem; }

.page-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform var(--transition);
}

.stat-card:hover { transform: translateY(-2px); }
.stat-card.danger { border-left: 4px solid var(--vga-danger); }
.stat-card.warning { border-left: 4px solid var(--vga-warning); }
.stat-card.success { border-left: 4px solid var(--vga-success); }
.stat-card.primary { border-left: 4px solid var(--vga-primary); }
.stat-card.accent { border-left: 4px solid var(--vga-accent); }

.stat-card .label { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.35rem; }
.stat-card .value { font-size: 1.75rem; font-weight: 700; color: var(--text-primary); }
.stat-card .value.value-sm { font-size: 0.95rem; font-weight: 600; line-height: 1.35; word-break: break-word; }

.panel {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-bottom: 1rem;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.panel-header h3 { font-size: 1rem; }

.btn {
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.btn-primary { background: var(--vga-primary); color: #fff; }
.btn-primary:hover { background: var(--vga-primary-light); }
.btn-secondary { background: var(--bg-app); color: var(--text-primary); border: 1px solid var(--border); }
.btn-danger { background: var(--vga-danger); color: #fff; }
.btn-warning { background: var(--vga-warning); color: #fff; }
.btn-info { background: #0ea5e9; color: #fff; }
.btn-info:hover { background: #0284c7; }
.btn-success { background: #16a34a; color: #fff; }
.btn-success:hover { background: #15803d; }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.table-simple { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.table-simple th, .table-simple td { padding: 0.65rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); }
.table-simple th { color: var(--text-secondary); font-weight: 500; font-size: 0.8rem; }
.table-simple tr:hover td { background: var(--bg-app); }
.modal-header { padding: 1.25rem; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; flex-shrink: 0; }
.modal-body { padding: 1.25rem; }
.modal-footer { padding: 1rem 1.25rem; border-top: 1px solid var(--border); display: flex; gap: 0.5rem; justify-content: flex-end; flex-shrink: 0; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; margin-bottom: 0.35rem; color: var(--text-secondary); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 0.55rem 0.75rem; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-app); color: var(--text-primary); font-family: inherit; }
.form-group textarea { resize: vertical; min-height: 4rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }