/* ============================================================
   TRADEDESK — Layout & Shell Styles
   Compact 240px Sidebar, Clean Header, Structured Main Canvas
   ============================================================ */

/* ── App Grid Shell ── */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  grid-template-rows: var(--header-height) 1fr;
  grid-template-areas:
    "sidebar header"
    "sidebar main";
  min-height: 100vh;
  background-color: var(--bg);
}

/* ── Sidebar (Section 7 & 8) ── */
.sidebar {
  grid-area: sidebar;
  background-color: var(--surface-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: sticky;
  top: 0;
  overflow-y: auto;
  z-index: var(--z-sticky);
}

.sidebar-brand {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-brand-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  line-height: 1.1;
}

.sidebar-brand-subtitle {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
}

.sidebar-group {
  margin-bottom: 16px;
}

.sidebar-group-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 10px 4px;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13.5px;
  font-weight: 500;
  height: 36px;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
  position: relative;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.sidebar-item:hover {
  background-color: var(--surface-muted);
  color: var(--text-primary);
}

.sidebar-item.active {
  background-color: var(--primary-subtle);
  color: var(--primary);
  font-weight: 600;
}

.sidebar-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background-color: var(--primary);
  border-radius: 0 2px 2px 0;
}

.sidebar-item-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: currentColor;
}

.sidebar-item-icon svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 1.6;
  fill: none;
}

.sidebar-footer {
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  background-color: var(--surface-sidebar);
}

.sidebar-account {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.sidebar-account:hover {
  background-color: var(--surface-muted);
}

.sidebar-account-avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--surface-muted);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
}

.sidebar-account-info {
  flex: 1;
  min-width: 0;
}

.sidebar-account-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.sidebar-account-status {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 2px;
}

.sidebar-account-status::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: var(--radius-full);
  background-color: var(--success);
}

/* ── Top Utility Bar (Section 9, 10, 11) ── */
.header {
  grid-area: header;
  background-color: var(--surface-header);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
  color: var(--text-secondary);
}

/* Global Search (Section 10) */
.header-search {
  position: relative;
  width: 340px;
  max-width: 380px;
}

.header-search-input {
  width: 100%;
  height: 32px;
  padding: 0 32px 0 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background-color: var(--bg);
  font-size: 13px;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.header-search-input:focus {
  background-color: var(--surface);
  border-color: var(--primary);
  outline: none;
}

.header-search-input::placeholder {
  color: var(--text-muted);
  font-size: 12.5px;
}

.header-search-icon {
  position: absolute;
  left: 9px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.header-search-icon svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
}

.header-search-shortcut {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 3px;
  pointer-events: none;
  font-family: var(--font-mono);
  line-height: 1;
}

.header-search-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-dropdown);
  max-height: 420px;
  overflow-y: auto;
  z-index: var(--z-dropdown);
  display: none;
}

.header-search-results.open {
  display: block;
}

.search-group-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 8px 12px 4px;
  background-color: var(--bg-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-fast);
}

.search-result-item:hover {
  background-color: var(--surface-muted);
}

.search-result-symbol {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.search-result-company {
  font-size: 12px;
  color: var(--text-muted);
}

/* Quick Actions (Section 11) */
.header-quick-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-account-selector {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg);
  border: 1px solid var(--border);
  transition: background-color var(--transition-fast);
}

.header-account-selector:hover {
  background-color: var(--surface-muted);
  border-color: var(--border-strong);
}

.header-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  position: relative;
  border: 1px solid transparent;
  background: none;
}

.header-icon-btn:hover {
  background-color: var(--surface-muted);
  border-color: var(--border);
  color: var(--text-primary);
}

.header-badge {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: var(--danger);
}

.header-avatar {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: var(--surface-muted);
  border: 1px solid var(--border);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

/* ── Main Workspace Canvas (Section 6, 12, 13) ── */
.main-content {
  grid-area: main;
  padding: 24px 32px;
  max-width: var(--max-content-width);
  width: 100%;
  overflow-x: hidden;
}

.page-header {
  margin-bottom: 20px;
}

.page-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.page-title {
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.page-subtitle {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-top: 3px;
  line-height: 1.4;
}

.page-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Toolbar & Filter System (Section 14) ── */
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.toolbar-left,
.toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* Filter Search Input Component */
.filter-search {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-width: 240px;
}

.filter-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  pointer-events: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.filter-search-icon svg {
  width: 14px;
  height: 14px;
  max-width: 14px;
  max-height: 14px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  display: block;
}

.filter-search-input {
  width: 100%;
  height: 32px;
  padding: 0 12px 0 32px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-primary);
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.filter-search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.filter-search-input::placeholder {
  color: var(--text-muted);
  font-size: 12.5px;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-areas:
      "header"
      "main";
  }
  .sidebar {
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 260px;
  }
  .sidebar.open {
    display: flex;
  }
  .sidebar-toggle {
    display: flex;
  }
  .main-content {
    padding: 16px 20px;
  }
}