/* Document Layout - Main container */
.document-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  background: #1a1a2e;
  color: #e0e0e0;
}

/* Sidebar */
.document-sidebar {
  flex-shrink: 0;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  background: #16162a;
  border-right: 1px solid #2a2a4a;
}

/* Back link */
.document-sidebar-back {
  padding: 8px 12px;
  border-bottom: 1px solid #2a2a4a;
}

.document-back-link {
  color: #9ca3af;
  text-decoration: none;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color 0.15s;
}

.document-back-link:hover {
  color: #e0e0e0;
}

/* Resize handle */
.document-resize-handle {
  width: 4px;
  cursor: col-resize;
  background: transparent;
  flex-shrink: 0;
  transition: background 0.15s;
}

.document-resize-handle:hover,
.document-resize-handle:active {
  background: #4a4a8a;
}

/* Main content area */
.document-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

/* Top bar */
.document-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px;
  border-bottom: 1px solid #2a2a4a;
  background: #1e1e38;
  flex-shrink: 0;
}

.document-topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.document-topbar-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: #f0f0f0;
}

.document-topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.document-topbar-gear {
  background: none;
  border: none;
  color: #888;
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}

.document-topbar-gear:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

/* Status badge */
.doc-status-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: #fff;
  letter-spacing: 0.5px;
}

/* Content area */
.document-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  scroll-behavior: smooth;
  /* Ensure expanded log feeds don't break layout */
  min-height: 0;
}

/* Placeholder / empty state */
.document-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: #888;
  padding: 40px;
}

.document-placeholder-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.document-placeholder h2 {
  font-size: 20px;
  font-weight: 500;
  margin: 0 0 8px;
  color: #aaa;
}

.document-placeholder p {
  font-size: 14px;
  margin: 0;
  max-width: 400px;
  line-height: 1.5;
}

.document-error {
  color: #f44336;
}

/* File Tree styles */
.directive-file-tree {
  display: flex;
  flex-direction: column;
  height: 100%;
  font-size: 13px;
}

.file-tree-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid #2a2a4a;
  flex-shrink: 0;
}

.file-tree-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #888;
}

.file-tree-new-btn {
  background: none;
  border: 1px solid #3a3a6a;
  color: #aaa;
  font-size: 16px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: all 0.15s;
}

.file-tree-new-btn:hover {
  background: #3a3a6a;
  color: #fff;
  border-color: #5a5a9a;
}

.file-tree-loading,
.file-tree-error {
  padding: 16px;
  color: #888;
  font-size: 12px;
  text-align: center;
}

.file-tree-error {
  color: #f44336;
}

.file-tree-groups {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}

/* Group header */
.file-tree-group {
  margin-bottom: 2px;
}

.file-tree-group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 6px 14px;
  background: none;
  border: none;
  color: #999;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  text-align: left;
  transition: color 0.15s;
}

.file-tree-group-header:hover {
  color: #ccc;
}

.file-tree-chevron {
  font-size: 8px;
  transition: transform 0.15s;
  display: inline-block;
}

.file-tree-chevron.expanded {
  transform: rotate(90deg);
}

.file-tree-group-count {
  margin-left: auto;
  color: #666;
  font-size: 10px;
}

.file-tree-group-label {
  flex: 1;
}

/* Tree items */
.file-tree-items {
  padding: 0;
}

.file-tree-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 5px 14px 5px 28px;
  background: none;
  border: none;
  color: #ccc;
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s;
  white-space: nowrap;
  overflow: hidden;
}

.file-tree-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.file-tree-item.selected {
  background: rgba(100, 100, 200, 0.15);
  color: #fff;
}

.file-tree-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.file-tree-doc-icon {
  font-size: 14px;
  flex-shrink: 0;
  opacity: 0.7;
}

.file-tree-item-title {
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.file-tree-step-count {
  margin-left: auto;
  font-size: 10px;
  color: #666;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: 1px 6px;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Responsive: mobile */
@media (max-width: 768px) {
  .document-sidebar {
    position: absolute;
    z-index: 100;
    left: 0;
    top: 0;
    height: 100%;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.5);
  }

  .document-resize-handle {
    display: none;
  }
}