/* manuals.css — Manuals file-explorer feature */

/* ── Explorer shell ─────────────────────────────────────────────────────────── */
.mf-explorer {
  padding: 0 20px 40px;
  max-width: 1100px;
}

/* ── Toolbar / breadcrumb row ────────────────────────────────────────────────── */
.mf-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0 16px;
  flex-wrap: wrap;
}

.mf-toolbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex-wrap: wrap;
}

/* ── Back button ─────────────────────────────────────────────────────────────── */
.mf-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: 1px solid var(--border-color);
  padding: 5px 12px 5px 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  flex-shrink: 0;
}
.mf-back-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.mf-back-btn:hover {
  background: var(--bg-primary);
  border-color: var(--primary);
  color: var(--primary);
}

/* ── Header actions (Upload / Add Link / New Folder) ─────────────────────────── */
.mf-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.mf-breadcrumb {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
  min-width: 0;
}

.mf-breadcrumb-btn {
  background: none;
  border: none;
  padding: 4px 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: background 0.15s;
}
.mf-breadcrumb-btn:hover { background: var(--primary-10); }

.mf-breadcrumb-current {
  padding: 4px 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.mf-breadcrumb-sep {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  flex-shrink: 0;
}



.mf-upload-btn {
  cursor: pointer;
  gap: 6px;
}
.mf-upload-btn svg { width: 15px; height: 15px; }
.btn.btn-secondary svg { width: 15px; height: 15px; }
.mf-header-actions .btn svg { width: 15px; height: 15px; }

/* ── Grid ────────────────────────────────────────────────────────────────────── */
.mf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

/* ── Item card ───────────────────────────────────────────────────────────────── */
.mf-item {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 14px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s, background 0.15s;
  outline: none;
  user-select: none;
}
.mf-item:hover {
  border-color: var(--primary);
  background: var(--bg-primary);
}
.mf-item:focus-visible {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-10);
}

.mf-item-icon-wrap {
  display: flex;
  align-items: center;
}

/* ── Folder icon ─────────────────────────────────────────────────────────────── */
.mf-folder-icon {
  width: 40px;
  height: 40px;
  color: #f5a623;
}
[data-theme="dark"] .mf-folder-icon { color: #f0b93d; }

/* ── File icons ──────────────────────────────────────────────────────────────── */
.mf-file-icon {
  width: 36px;
  height: 36px;
  stroke-width: 1.5;
}
.mf-file-icon.pdf   { color: #e53935; }
.mf-file-icon.img   { color: #43a047; }
.mf-file-icon.doc   { color: #1e88e5; }
.mf-file-icon.sheet { color: #00897b; }
.mf-file-icon.generic { color: var(--text-secondary); }
.mf-file-icon.link  { color: #7b61ff; }
[data-theme="dark"] .mf-file-icon.link { color: #9e8fff; }

/* ── Item meta ────────────────────────────────────────────────────────────────── */
.mf-item-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
  flex: 1;
}

.mf-item-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.4;
}

.mf-item-date {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mf-link-badge {
  color: #7b61ff;
  font-weight: 500;
}

/* ── Context menu trigger button ─────────────────────────────────────────────── */
.mf-item-menu-wrap {
  position: absolute;
  top: 8px;
  right: 8px;
}

.mf-item-menu-btn {
  background: none;
  border: none;
  padding: 4px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 0.15s, background 0.15s, color 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mf-item-menu-btn svg { width: 16px; height: 16px; }
.mf-item:hover .mf-item-menu-btn,
.mf-item-menu-btn:focus { opacity: 1; }
.mf-item-menu-btn:hover { background: var(--bg-primary); color: var(--text-primary); }

/* ── Context menu popup ──────────────────────────────────────────────────────── */
.mf-ctx-menu {
  position: fixed;
  z-index: 9999;
  min-width: 172px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0,0,0,0.13);
  padding: 4px;
  animation: mf-ctx-appear 0.1s ease;
}
@keyframes mf-ctx-appear {
  from { opacity: 0; transform: scale(0.96) translateY(-4px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.mf-ctx-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: background 0.12s;
}
.mf-ctx-item svg { width: 15px; height: 15px; flex-shrink: 0; }
.mf-ctx-item:hover { background: var(--bg-primary); }
.mf-ctx-item.danger { color: var(--danger, #e53935); }
.mf-ctx-item.danger:hover { background: rgba(229, 57, 53, 0.08); }

.mf-ctx-divider {
  height: 1px;
  background: var(--border-color-light);
  margin: 3px 0;
}

/* ── Inline rename input ──────────────────────────────────────────────────────── */
.mf-rename-input {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  width: 100%;
  outline: none;
}

/* ── Empty state ────────────────────────────────────────────────────────────── */
.mf-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 60px 20px;
  color: var(--text-muted);
}
.mf-empty svg {
  width: 52px;
  height: 52px;
  opacity: 0.3;
}
.mf-empty-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 0;
}
.mf-empty-hint {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
  text-align: center;
  max-width: 300px;
}

/* ── Loading skeleton placeholder ───────────────────────────────────────────── */
.mf-loading {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

/* ── Upload progress overlay ─────────────────────────────────────────────────── */
.mf-upload-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mf-upload-box {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: 32px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 240px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.25);
}
.mf-upload-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: mf-spin 0.7s linear infinite;
}
@keyframes mf-spin {
  to { transform: rotate(360deg); }
}
.mf-upload-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0;
  text-align: center;
  max-width: 220px;
}

/* ── File preview modal ──────────────────────────────────────────────────────── */
.mf-preview-modal {
  position: fixed;
  inset: 0;
  z-index: 10001;
  display: flex;
  align-items: stretch;
  opacity: 0;
  transition: opacity 0.2s;
}
.mf-preview-modal.open { opacity: 1; }

.mf-preview-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
}

.mf-preview-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  width: 100%;
  max-width: 900px;
  margin: 20px auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.35);
  transform: translateY(12px);
  transition: transform 0.2s;
}
.mf-preview-modal.open .mf-preview-panel {
  transform: translateY(0);
}

.mf-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color-light);
  flex-shrink: 0;
}

.mf-preview-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  flex: 1;
}

.mf-preview-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.mf-preview-dl svg { width: 15px; height: 15px; }

.mf-preview-close {
  background: none;
  border: none;
  padding: 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  transition: background 0.15s;
}
.mf-preview-close svg { width: 18px; height: 18px; }
.mf-preview-close:hover { background: var(--bg-primary); color: var(--text-primary); }

.mf-preview-body {
  flex: 1;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  min-height: 0;
}

.mf-preview-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.mf-preview-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}

.mf-preview-no-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 48px 24px;
  color: var(--text-muted);
  text-align: center;
}
.mf-preview-no-preview svg { width: 56px; height: 56px; opacity: 0.5; }
.mf-preview-no-preview p { font-size: 15px; font-weight: 500; color: var(--text-secondary); margin: 0; }

/* ── Mobile tweaks ───────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .mf-explorer { padding: 0 12px 40px; }
  .mf-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
  .mf-item { padding: 12px 10px 10px; }
  .mf-toolbar { gap: 8px; }
  .mf-toolbar-actions { gap: 6px; }

  .mf-preview-panel {
    margin: 0;
    border-radius: 0;
    height: 100%;
    max-width: 100%;
  }
}