/* ==========================================================================
   全新極簡版面佈局 (Layout & Workflow Architecture)
   ========================================================================== */

.app-container {
  max-width: 1380px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
}

/* 頂部極簡 Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  padding: var(--space-3) var(--space-5);
  background: var(--color-bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.brand-section {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-logo {
  width: 38px;
  height: 38px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  font-weight: 800;
  flex-shrink: 0;
}

.brand-info h1 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-info p {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: nowrap;
}

.header-actions .btn {
  height: 36px;
  min-height: 36px;
  white-space: nowrap;
  padding: 0.35rem 0.85rem;
  font-size: 0.8125rem;
}

/* 主題選單與簡約下拉 */
.select-clean {
  height: 36px;
  min-height: 36px;
  padding: 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--color-bg-surface);
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
}

/* 下拉工具選單 */
.dropdown-wrapper {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--color-bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: var(--space-2) 0;
  z-index: 100;
  display: none;
  flex-direction: column;
}

.dropdown-menu.active {
  display: flex;
  animation: dropIn 0.18s var(--ease-spring);
}

@keyframes dropIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-item {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: background var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--color-bg-surface-elevated);
}

.dropdown-item.text-danger {
  color: var(--color-danger);
}

.dropdown-divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: var(--space-1) 0;
}

/* 核心 3 大情境導航列 (Tab Navigation) */
.main-navigation {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.nav-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: 0.85rem var(--space-4);
  background: var(--color-bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
  user-select: none;
}

.nav-tab:hover {
  border-color: var(--color-primary-border);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.nav-tab.active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.nav-tab-icon {
  font-size: 1.35rem;
}

.nav-tab-title {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.2px;
}

/* 視圖面板切換 */
.view-panel {
  display: none;
}

.view-panel.active {
  display: block;
  animation: viewFadeIn 0.22s var(--ease-spring);
}

@keyframes viewFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 次級分頁/切換器 (Sub Segment Switchers) */
.segment-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.pill-group {
  display: inline-flex;
  background: var(--color-bg-surface-elevated);
  padding: 0.25rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

.pill-btn {
  padding: 0.4rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pill-btn:hover {
  color: var(--text-primary);
}

.pill-btn.active {
  background: var(--color-bg-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* 網格與排版 */
.grid-workspace {
  display: grid;
  grid-template-columns: 290px 1fr;
  gap: var(--space-5);
  align-items: start;
}

.modal-lg {
  max-width: 780px !important;
}

.sub-tab-group {
  display: flex;
  gap: var(--space-2);
}

.sub-tab {
  padding: 0.25rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
}

.sub-tab.active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* 響應式 */
@media (max-width: 900px) {
  .app-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }
  .main-navigation {
    grid-template-columns: 1fr;
  }
  .grid-workspace {
    grid-template-columns: 1fr;
  }
}

/* 列印專用樣式 */
@media print {
  body {
    background: white !important;
    color: black !important;
    padding: 0 !important;
  }
  .app-container {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  .app-header, .main-navigation, .segment-bar, .non-printable, .toast-container {
    display: none !important;
  }
  .view-panel {
    display: none !important;
  }
  .view-panel.active {
    display: block !important;
  }
  .card, .table-container, .poster-container {
    box-shadow: none !important;
    border: 1px solid #94a3b8 !important;
  }
}