/* Mobile-first approach */
.app-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  display: none; /* Hidden on mobile */
  width: 260px;
  background: var(--card-bg);
  border-right: 1px solid rgba(0,0,0,0.05);
  padding: 24px 16px;
  flex-direction: column;
}

.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.header {
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-color);
  z-index: 10;
}

.header-title {
  font-size: 20px;
  font-weight: 600;
}

.header-actions {
  display: flex;
  gap: 12px;
}

.icon-btn {
  background: var(--card-bg);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  font-size: 18px;
}

.content {
  flex: 1;
  overflow-y: auto;
  padding: 0 20px 80px 20px; /* bottom padding for nav */
}

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--card-bg);
  display: flex;
  justify-content: space-around;
  padding: 12px 0;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.03);
  z-index: 20;
}

.bottom-nav .nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 11px;
  color: var(--text-secondary);
  gap: 4px;
}

.nav-item.active {
  color: var(--primary);
}
.nav-item.active svg {
  color: var(--primary);
}

/* Desktop override */
@media (min-width: 768px) {
  .bottom-nav {
    display: none;
  }
  .sidebar {
    display: flex;
  }
  .content {
    padding: 24px 40px;
  }
  .sidebar-logo {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 40px;
    padding-left: 12px;
  }
  .sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .sidebar-nav .nav-item {
    padding: 12px;
    border-radius: var(--border-radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .sidebar-nav .nav-item:hover,
  .sidebar-nav .nav-item.active {
    background: #fff0e5; /* Light orange */
    color: var(--primary);
  }
}