/* AppShell layout: header, team sidebar, main region */
.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: #f8fafc;
}

/* Header */
.app-header {
  background-color: white;
  border-bottom: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px 0 rgba(15, 23, 42, 0.06);
  position: sticky;
  top: 0;
  z-index: 10;
}

.app-header-content {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0.875rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-logo h1 {
  font-size: 1.375rem;
  font-weight: 700;
  color: #1d4ed8;
}

.app-header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.user-name {
  font-weight: 500;
  color: #334155;
  font-size: 0.9375rem;
}

/* Body */
.app-body {
  flex: 1;
  display: flex;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

/* Sidebar */
.app-sidebar {
  width: 264px;
  flex: none;
  background-color: white;
  border-right: 1px solid #e2e8f0;
  padding: 1.5rem;
}

.sidebar-section {
  margin-bottom: 2rem;
}

.sidebar-heading {
  font-size: 0.75rem;
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.875rem;
}

.team-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  list-style: none;
}

.team-member {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem;
  border-radius: 0.375rem;
  transition: background-color 0.2s;
}

.team-member:hover {
  background-color: #f1f5f9;
}

.member-name {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 500;
  color: #334155;
}

.online-indicator {
  width: 8px;
  height: 8px;
  background-color: #059669;
  border-radius: 50%;
  flex: none;
}

/* Main */
.app-main {
  flex: 1;
  min-width: 0;
  padding: 1.75rem 2rem;
}

@media (max-width: 768px) {
  .app-header-content {
    padding: 0.75rem 1rem;
  }

  .app-logo h1 {
    font-size: 1.25rem;
  }

  .user-name {
    display: none;
  }

  .app-body {
    flex-direction: column;
  }

  /* Team list is secondary on small screens; the task list gets the room. */
  .app-sidebar {
    display: none;
  }

  .app-main {
    padding: 1rem;
    padding-bottom: 5.5rem; /* clear of the floating Create Task button */
  }
}