*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:      #1a1e26;
  --bg2:     #222736;
  --bg3:     #2a3040;
  --accent:  #508dc7;
  --accent2: #3a6fa0;
  --text:    #d4cfc8;
  --text2:   #8a8fa0;
  --border:  #2e3548;
  --folder:  #4a7ab5;
  --success: #5db882;
  --success-bg: #1e3a2a;
  --success-border: #2d5e40;
  --danger:  #e06c6c;
  --radius:  6px;
}

html, body { height: 100%; overflow: hidden; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Times New Roman', Times, serif;
  font-size: 14px;
  line-height: 1.5;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ── Topbar ── */
.topbar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  gap: 12px;
}

.topbar-left { display: flex; align-items: center; gap: 14px; min-width: 0; }
.topbar-right { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.logo { color: var(--accent); font-size: 17px; font-weight: bold; white-space: nowrap; }
.logo-sub { font-weight: normal; color: var(--text2); font-size: 13px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  color: var(--text2);
  min-width: 0;
  flex-wrap: nowrap;
  overflow: hidden;
}
.breadcrumb a {
  color: var(--accent);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
}
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .crumb-sep { flex-shrink: 0; }
.breadcrumb .crumb-current { color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── Buttons ── */
.btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'Times New Roman', Times, serif;
  font-size: 12px;
  padding: 5px 11px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  transition: background 0.1s, border-color 0.1s;
}
.btn:hover { background: var(--bg3); border-color: var(--accent); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--accent2); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent); }
.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: rgba(224,108,108,0.1); }

/* ── Sync badge ── */
.sync-badge {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success);
  padding: 3px 10px;
  font-size: 11px;
  white-space: nowrap;
}

/* ── Body layout ── */
.body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── Sidebar ── */
.sidebar {
  width: 190px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
}

.sidebar-section {
  padding: 10px 14px 4px;
  font-size: 10px;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar-item {
  padding: 7px 16px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  border-left: 2px solid transparent;
  transition: background 0.1s;
  user-select: none;
}
.sidebar-item:hover { background: var(--bg3); }
.sidebar-item.active { background: var(--bg3); border-left-color: var(--accent); color: var(--accent); }

.sidebar-footer {
  margin-top: auto;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
}
.usage-label { font-size: 10px; color: var(--text2); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.usage-bar { height: 3px; background: var(--bg3); overflow: hidden; margin-bottom: 4px; }
.usage-fill { height: 100%; background: var(--accent); width: 0%; transition: width 0.4s; }
.usage-text { font-size: 11px; color: var(--text2); }

/* ── Main ── */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.toolbar {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.search {
  margin-left: auto;
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 5px 10px;
  color: var(--text);
  font-family: 'Times New Roman', Times, serif;
  font-size: 13px;
  width: 200px;
  outline: none;
  transition: border-color 0.1s;
}
.search::placeholder { color: var(--text2); }
.search:focus { border-color: var(--accent); }

.content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

/* ── Section labels ── */
.section-label {
  font-size: 10px;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

/* ── Folder grid ── */
.folder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.folder-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 12px 8px 10px;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
  user-select: none;
}
.folder-card:hover { border-color: var(--accent); background: var(--bg3); }

.folder-icon {
  width: 36px;
  height: 28px;
  margin: 0 auto 7px;
  position: relative;
}
.fi-body {
  width: 36px;
  height: 24px;
  background: var(--folder);
  position: absolute;
  bottom: 0;
}
.fi-tab {
  width: 16px;
  height: 7px;
  background: var(--folder);
  position: absolute;
  top: 0;
  left: 0;
  filter: brightness(1.2);
}

.folder-name {
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.folder-meta { font-size: 10px; color: var(--text2); margin-top: 3px; }

/* ── Root files (avatar / banner) ── */
.root-files {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.file-row {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.file-row:hover { border-color: var(--accent); }
.file-row.missing { opacity: 0.5; border-style: dashed; }

.file-left { display: flex; align-items: center; gap: 10px; min-width: 0; }

.file-badge {
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 2px 6px;
  font-size: 10px;
  color: var(--accent);
  min-width: 38px;
  text-align: center;
  flex-shrink: 0;
}
.file-badge.empty { color: var(--text2); }

.file-name { font-size: 13px; color: var(--text); }
.file-name.dim { color: var(--text2); font-style: italic; }
.file-size { font-size: 11px; color: var(--text2); white-space: nowrap; }

.file-actions { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }

.copy-btn, .upload-btn, .delete-btn {
  background: transparent;
  border: 1px solid var(--border);
  padding: 3px 8px;
  font-size: 11px;
  color: var(--text2);
  cursor: pointer;
  font-family: 'Times New Roman', Times, serif;
  transition: border-color 0.1s, color 0.1s;
  white-space: nowrap;
}
.copy-btn:hover, .upload-btn:hover { border-color: var(--accent); color: var(--accent); }
.delete-btn:hover { border-color: var(--danger); color: var(--danger); }

/* ── Letter bucket grid (root view) ── */
.bucket-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 8px;
  margin-bottom: 24px;
}

.bucket-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 14px 8px 12px;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
  user-select: none;
}
.bucket-card:hover { border-color: var(--accent); background: var(--bg3); }

.bucket-letter {
  font-size: 22px;
  color: var(--accent);
  margin-bottom: 4px;
  font-weight: bold;
}
.bucket-count { font-size: 10px; color: var(--text2); }

/* ── Empty / loading states ── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--text2);
  gap: 10px;
}
.empty-icon { font-size: 32px; opacity: 0.4; }
.empty-text { font-size: 13px; }

/* ── Status bar ── */
.status-bar {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 5px 16px;
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text2);
  flex-shrink: 0;
}

.tag {
  display: inline-block;
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 1px 6px;
  font-size: 10px;
  color: var(--accent);
  margin-left: 4px;
}

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  width: 100%;
  max-width: 440px;
  margin: 16px;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title { font-size: 15px; color: var(--text); }
.modal-close {
  background: transparent;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 6px;
}
.modal-close:hover { background: var(--bg3); color: var(--text); }

.modal-body { padding: 16px; }
.modal-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* ── Drop zone ── */
.drop-zone {
  border: 1px dashed var(--border);
  padding: 32px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.1s, background 0.1s;
}
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--accent); background: var(--bg3); }
.drop-icon { font-size: 28px; color: var(--accent); margin-bottom: 8px; }
.drop-text { font-size: 13px; color: var(--text2); }

.upload-list { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.upload-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg3);
  padding: 6px 10px;
  font-size: 12px;
}
.upload-item-name { color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-item-size { color: var(--text2); flex-shrink: 0; margin-left: 8px; }

/* ── Form inputs ── */
.form-input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 8px 10px;
  color: var(--text);
  font-family: 'Times New Roman', Times, serif;
  font-size: 13px;
  outline: none;
  transition: border-color 0.1s;
}
.form-input:focus { border-color: var(--accent); }

.auth-error {
  margin-top: 8px;
  color: var(--danger);
  font-size: 12px;
  padding: 6px 10px;
  background: rgba(224,108,108,0.1);
  border: 1px solid rgba(224,108,108,0.3);
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); }
::-webkit-scrollbar-thumb:hover { background: var(--text2); }

/* ── Mobile ── */
@media (max-width: 600px) {
  .sidebar { display: none; }
  .search { width: 140px; }
  .topbar-left .breadcrumb { display: none; }
}

/* ── Image cards (avatar/banner display) ── */
.img-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.img-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  overflow: hidden;
  cursor: default;
}

.img-card-missing {
  opacity: 0.6;
  border-style: dashed;
}

.img-card-preview {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--bg3);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.img-card-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.img-card-preview-empty {
  flex-direction: column;
  gap: 6px;
}

.img-card-empty-label {
  font-size: 13px;
  color: var(--text2);
}

.img-card-empty-sub {
  font-size: 11px;
  color: var(--text2);
  opacity: 0.6;
}

.img-card-footer {
  padding: 8px 10px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.img-card-name {
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.img-card-size {
  font-size: 10px;
  color: var(--text2);
}

.img-card-actions {
  display: flex;
  gap: 6px;
}