.app-layout {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 10;
}
.sidebar {
  width: var(--sidebar-width);
  background: rgba(18, 18, 18, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--gray-200);
  color: var(--white);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: width var(--transition-base);
}
.sidebar-header {
  padding: var(--space-6) var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--gray-200);
}
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.sidebar-logo-mark {
  width: 36px;
  height: 36px;
  background-color: var(--orange-100);
  border: 1px solid rgba(232, 97, 20, 0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange-500);
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
  box-shadow: var(--glow-orange);
}
.sidebar-logo-text {
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
  color: var(--white);
  letter-spacing: -0.02em;
}
.sidebar-logo-sub {
  font-size: var(--text-xs);
  color: var(--gray-500);
  font-weight: var(--font-normal);
  display: block;
  margin-top: 2px;
}
.sidebar-nav {
  flex: 1;
  padding: var(--space-4) var(--space-3);
  overflow-y: auto;
}
.btn-sm {
  padding: 4px 8px;
  font-size: 0.8rem;
  border-radius: 4px;
}
.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  color: var(--gray-400);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 4px;
  text-decoration: none;
  border: 1px solid transparent;
  background: none;
  width: 100%;
  position: relative;
}
.sidebar-nav-item:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--gray-700);
  transform: translateX(4px);
}
.sidebar-nav-item.active {
  background: rgba(232, 97, 20, 0.05);
  border-color: rgba(232, 97, 20, 0.2);
  color: var(--orange-500);
  box-shadow: inset 0 0 10px rgba(232, 97, 20, 0.05);
}
.sidebar-nav-item.active::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background-color: var(--orange-500);
  border-radius: 0 4px 4px 0;
  box-shadow: var(--glow-orange);
}
.sidebar-nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.7;
  transition: all var(--transition-fast);
}
.sidebar-nav-item.active .sidebar-nav-icon {
  opacity: 1;
  color: var(--orange-500);
}
.sidebar-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--gray-200);
  font-size: 10px;
  color: var(--gray-500);
  line-height: 1.4;
}
.sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--orange-500), transparent);
  box-shadow: var(--glow-orange);
}

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.topbar {
  height: var(--topbar-height);
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-left {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--space-4);
}
.topbar-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--white);
  letter-spacing: -0.02em;
}
.topbar-subtitle {
  font-size: var(--text-xs);
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.topbar-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--gray-400);
}
.mobile-toggle {
  display: none;
}

.page-content {
  flex: 1;
  padding: var(--space-8);
}
.page-content-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.actions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 var(--space-6);
}
.form-grid .form-group-full {
  grid-column: 1 / -1;
}

@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sidebar {
    width: var(--sidebar-collapsed);
  }
  .sidebar-logo-text, .sidebar-logo-sub, .sidebar-nav-text, .sidebar-footer-text {
    display: none;
  }
  .sidebar-nav-item {
    justify-content: center;
    padding: 10px;
  }
  .main-content {
    margin-left: var(--sidebar-collapsed);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: 280px !important;
  }
  .sidebar-logo-text, .sidebar-logo-sub, .sidebar-nav-text, .sidebar-footer-text {
    display: block !important;
  }
  .sidebar-nav-item {
    justify-content: flex-start !important;
    padding: 12px 16px !important;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0,0,0,0.5);
    z-index: 99;
    display: none;
  }
  .sidebar-overlay.active {
    display: block;
  }
  .main-content {
    margin-left: 0;
  }
  .mobile-toggle {
    display: flex;
  }
  .topbar {
    padding: 0 var(--space-4);
  }
  .topbar-subtitle {
    display: none;
  }
  .topbar-user span {
    display: none;
  }
  .page-content {
    padding: var(--space-4);
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .actions-grid {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.modal-overlay {
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  background: rgba(0,0,0,0.6) !important;
  backdrop-filter: blur(4px) !important;
  z-index: 99999 !important;
  display: none;
  justify-content: center !important;
  align-items: center !important;
}