/* ================================================================
   VAULTR — Main Stylesheet
   Dark navy-slate, electric blue + violet accent language
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* ─── Tokens ──────────────────────────────────────────────── */
:root {
  --bg:           #0D0F14;
  --surface:      #161B25;
  --surface-alt:  #1A2030;
  --sidebar:      #111520;
  --border:       #1E2535;
  --border-light: #252D3D;
  --accent:       #4F8EF7;
  --accent-dim:   rgba(79,142,247,0.15);
  --violet:       #7B5EA7;
  --violet-dim:   rgba(123,94,167,0.15);
  --text:         #E8EAF0;
  --text-dim:     #6B7280;
  --text-muted:   #3D4A5C;
  --success:      #34D399;
  --warning:      #F59E0B;
  --error:        #EF4444;
  --radius:       4px;
  --sidebar-w:    260px;
  --topbar-h:     52px;
  --statusbar-h:  28px;
  --font-mono:    'Space Mono', monospace;
  --font-sans:    'DM Sans', sans-serif;
}

/* ─── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

/* ─── Scrollbars ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ─── Layout Shell ────────────────────────────────────────── */
#app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr var(--statusbar-h);
  height: 100vh;
}

/* ─── Topbar ──────────────────────────────────────────────── */
#topbar {
  grid-row: 1;
  grid-column: 1 / -1;
  background: var(--sidebar);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  position: relative;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-icon {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text);
}

.topbar-sep {
  width: 1px; height: 24px;
  background: var(--border);
  flex-shrink: 0;
}

/* Search bar — fills all space between brand and action buttons */
.search-wrap {
  flex: 1;
  min-width: 0;
  display: flex;
}

/* Inner wrapper holds the icon, input, and clear button as one unit */
.search-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: var(--radius) 0 0 var(--radius);
  min-width: 0;
  transition: border-color 0.15s;
}

.search-input-wrap:focus-within { border-color: var(--accent); }
.search-input-wrap:focus-within + #searchScope { border-color: var(--accent); }

.search-input-wrap svg {
  flex-shrink: 0;
  margin-left: 12px;
  color: var(--text-dim);
  pointer-events: none;
}

#searchInput {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 7px 8px;
  outline: none;
  min-width: 0;
}

#searchInput::placeholder { color: var(--text-dim); }

/* X sits as a plain flex item — never overlaps anything */
#searchClear {
  flex-shrink: 0;
  margin-right: 6px;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px 4px;
  display: flex;
  align-items: center;
  border-radius: 2px;
  line-height: 0;
  transition: color 0.1s;
}

#searchClear:hover { color: var(--text); }

#searchScope {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 11px;
  font-family: var(--font-sans);
  padding: 0 8px;
  border-radius: 0 var(--radius) var(--radius) 0;
  outline: none;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}

#searchScope:focus { border-color: var(--accent); color: var(--text); }
#searchInput:focus ~ #searchScope,
.search-input-wrap:focus-within + #searchScope { border-color: var(--accent); }

.topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
}

.icon-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
}

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

.icon-btn.active {
  background: var(--violet-dim);
  border-color: var(--violet);
  color: var(--violet);
}

/* User chip */
.user-chip {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 10px 4px 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s;
  font-size: 13px;
}

.user-chip:hover { border-color: var(--accent); }

.user-avatar {
  width: 22px; height: 22px;
  background: linear-gradient(135deg, var(--violet), var(--accent));
  border-radius: 2px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

#userChipNode {
  border-top: 1px solid var(--border);
  margin-top: 4px;
  cursor: pointer;
}

/* ─── Sidebar ─────────────────────────────────────────────── */
#sidebar {
  grid-row: 2;
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-section {
  padding: 16px 0 8px;
}

.sidebar-label {
  padding: 0 16px 6px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.tree-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

/* Tree nodes */
.tree-node {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 16px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-dim);
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-left: 2px solid transparent;
  transition: all 0.1s;
}

.tree-node:hover {
  background: var(--surface);
  color: var(--text);
}

.tree-node.active {
  background: var(--accent-dim);
  color: var(--accent);
  border-left-color: var(--accent);
}

.tree-node.source-root {
  font-weight: 500;
  color: var(--text);
  padding: 6px 16px;
}

.tree-node.source-root.active {
  color: var(--accent);
}

.tree-indent { width: 16px; flex-shrink: 0; }
.tree-chevron {
  flex-shrink: 0;
  transition: transform 0.15s;
  color: var(--text-muted);
}
.tree-chevron.open { transform: rotate(90deg); }

.tree-icon { flex-shrink: 0; }
.tree-name { overflow: hidden; text-overflow: ellipsis; }

/* Sidebar bottom */
.sidebar-bottom {
  border-top: 1px solid var(--border);
  padding: 8px 0;
  flex-shrink: 0;
}

/* ─── Main content area ───────────────────────────────────── */
#main {
  grid-row: 2;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
}

/* Breadcrumb / toolbar */
#content-toolbar {
  padding: 0 20px;
  height: 44px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  overflow: hidden;
  flex: 1;
  min-width: 0;
}

.breadcrumb-item {
  color: var(--text-dim);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.1s;
}

.breadcrumb-item:hover { color: var(--accent); }
.breadcrumb-item.current { color: var(--text); cursor: default; }
.breadcrumb-sep { color: var(--text-muted); flex-shrink: 0; }

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

/* View toggle */
.view-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.view-btn {
  padding: 5px 8px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: all 0.1s;
}

.view-btn:hover { background: var(--surface-alt); color: var(--text); }
.view-btn.active { background: var(--accent-dim); color: var(--accent); }

/* Sort dropdown */
.sort-select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
  padding: 5px 8px;
  border-radius: var(--radius);
  outline: none;
  cursor: pointer;
}

.sort-select:focus { border-color: var(--accent); color: var(--text); }

/* Filter chip */
.filter-chip {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px 3px 6px;
  background: var(--violet-dim);
  border: 1px solid var(--violet);
  border-radius: 2px;
  color: var(--violet);
  font-size: 11px;
  cursor: pointer;
}

.filter-chip:hover { background: rgba(123,94,167,0.25); }

/* ─── File browser ────────────────────────────────────────── */
#file-browser {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
}

/* LIST VIEW */
.file-list-header {
  display: grid;
  align-items: center;
  padding: 0 20px;
  height: 32px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-muted);
  position: sticky; top: 0; z-index: 10;
  user-select: none;
}

.col-name  { grid-area: name; }
.col-type  { grid-area: type; }
.col-size  { grid-area: size; text-align: right; }
.col-date  { grid-area: date; padding-left: 16px; }
.col-ctime { grid-area: ctime; }
.col-meta  { grid-area: meta; }

.file-list-header,
.file-row {
  grid-template-columns: 1fr 80px 80px 16px 130px 130px 110px 60px;
  grid-template-areas: "name type size . date ctime meta actions";
}

.col-header {
  display: flex; align-items: center; gap: 4px;
  cursor: pointer;
  transition: color 0.1s;
  overflow: hidden;
}

.col-header:hover { color: var(--accent); }
.col-header.sorted { color: var(--accent); }

.file-row {
  display: grid;
  align-items: center;
  padding: 0 20px;
  height: 38px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.1s;
  position: relative;
}

.file-row:hover { background: var(--surface); }
.file-row.selected { background: var(--accent-dim); border-left: 2px solid var(--accent); }
.file-row.selected .file-name-text { color: var(--accent); }

.file-row-name {
  grid-area: name;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
}

.file-icon { flex-shrink: 0; }
.file-name-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
}

.file-row-type {
  grid-area: type;
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.file-row-size {
  grid-area: size;
  font-size: 12px;
  color: var(--text-dim);
  text-align: right;
  font-family: var(--font-mono);
}

.file-row-date {
  grid-area: date;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.file-row-ctime {
  grid-area: ctime;
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.file-row-meta {
  grid-area: meta;
  display: flex; gap: 4px; flex-wrap: wrap;
}

.meta-tag {
  padding: 1px 6px;
  background: var(--violet-dim);
  border: 1px solid rgba(123,94,167,0.3);
  border-radius: 2px;
  font-size: 10px;
  color: var(--violet);
  white-space: nowrap;
}

.file-row-actions {
  grid-area: actions;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.1s;
}

.file-row:hover .file-row-actions { opacity: 1; }

/* ICON VIEW */
.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1px;
  padding: 16px;
}

.file-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 8px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.1s;
  text-align: center;
  position: relative;
}

.file-card:hover {
  background: var(--surface);
  border-color: var(--border);
}

.file-card.selected {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.file-card-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 8px;
}

.file-card-name {
  font-size: 12px;
  line-height: 1.3;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-all;
  color: var(--text);
}

/* ─── File type colours ───────────────────────────────────── */
.ft-folder  { color: #60A5FA; }
.ft-document{ color: #34D399; }
.ft-image   { color: #F472B6; }
.ft-video   { color: #A78BFA; }
.ft-audio   { color: #FB923C; }
.ft-code    { color: #38BDF8; }
.ft-other   { color: var(--text-muted); }

/* ─── Empty state ─────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 12px;
  color: var(--text-muted);
  padding: 40px;
  text-align: center;
}

.empty-state svg { opacity: 0.3; }
.empty-state h3 { color: var(--text-dim); font-size: 15px; font-weight: 500; }
.empty-state p  { font-size: 13px; max-width: 300px; }

/* ─── Preview panel ───────────────────────────────────────── */
#preview-panel {
  width: 380px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

#preview-panel.hidden { display: none; }

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

.preview-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dim);
}

.preview-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

.preview-media {
  width: 100%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
  max-height: 160px;
  overflow: hidden;
  flex-shrink: 0;
}

.preview-media img {
  max-width: 100%;
  max-height: 160px;
  object-fit: contain;
}

.preview-media video,
.preview-media audio {
  width: 100%;
}

.preview-info {
  padding: 16px;
}

.preview-filename {
  font-size: 14px;
  font-weight: 500;
  word-break: break-all;
  margin-bottom: 12px;
}

.preview-prop {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  gap: 12px;
}

.preview-prop:last-child { border-bottom: none; }
.prop-label { color: var(--text-dim); flex-shrink: 0; }
.prop-value { color: var(--text); text-align: right; font-family: var(--font-mono); font-size: 11px; word-break: break-all; }

.preview-text-content {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--text-dim);
  white-space: pre-wrap;
  word-break: break-all;
  border-top: 1px solid var(--border);
}

/* Custom metadata section in preview */
.preview-meta-section {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}

.preview-meta-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.meta-field {
  margin-bottom: 10px;
}

.meta-field label {
  font-size: 10px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 4px;
  display: block;
}

.meta-field input, .meta-field textarea, .meta-field select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 12px;
  padding: 6px 8px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s;
}

.meta-field textarea { resize: vertical; min-height: 60px; }
.meta-field input:focus, .meta-field textarea:focus, .meta-field select:focus { border-color: var(--violet); }

.meta-save-btn {
  width: 100%;
  padding: 8px;
  background: var(--violet-dim);
  border: 1px solid var(--violet);
  border-radius: var(--radius);
  color: var(--violet);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: var(--font-mono);
  transition: all 0.15s;
  margin-top: 4px;
}

.meta-save-btn:hover { background: rgba(123,94,167,0.25); }

/* Preview actions */
.preview-actions {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.btn-primary {
  flex: 1;
  padding: 8px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: var(--font-mono);
  transition: opacity 0.15s;
}

.btn-primary:hover { opacity: 0.85; }

.btn-ghost {
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ─── Status bar ──────────────────────────────────────────── */
#statusbar {
  grid-row: 3;
  grid-column: 1 / -1;
  background: var(--sidebar);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 20px;
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.status-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
}

.status-dot.scanning { background: var(--warning); animation: pulse 1s infinite; }
.status-dot.ready    { background: var(--success); }
.status-dot.error    { background: var(--error); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.status-sep {
  width: 1px; height: 14px;
  background: var(--border);
}

.status-right { margin-left: auto; }

/* ─── Modals ──────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(2px);
  animation: fadeIn 0.15s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  width: 520px;
  max-width: 95vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.modal::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--violet));
}

.modal-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ─── Settings page ───────────────────────────────────────── */
#settings-panel {
  display: none;
  overflow-y: auto;
  padding: 24px 32px;
  background: var(--bg);
  flex: 1;
}

#settings-panel.visible {
  display: block;
}

.settings-section {
  max-width: 720px;
  margin-bottom: 40px;
}

.settings-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  gap: 20px;
}

.settings-row:last-child { border-bottom: none; }

.settings-row-label {
  font-size: 13px;
  font-weight: 500;
}

.settings-row-desc {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 2px;
}

.settings-row-control {
  flex-shrink: 0;
  min-width: 200px;
  text-align: right;
}

.settings-input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13px;
  padding: 7px 10px;
  border-radius: var(--radius);
  width: 100%;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s;
}

.settings-input:focus { border-color: var(--accent); }

/* Toggle switch */
.toggle {
  position: relative;
  width: 40px; height: 22px;
  display: inline-block;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border-light);
  border-radius: 22px;
  cursor: pointer;
  transition: background 0.2s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  left: 3px; top: 3px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}

.toggle input:checked + .toggle-slider { background: var(--accent); }
.toggle input:checked + .toggle-slider::before {
  transform: translateX(18px);
  background: #fff;
}

/* Source cards */
.source-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.source-card-info { flex: 1; min-width: 0; }
.source-card-name { font-size: 13px; font-weight: 500; }
.source-card-path { font-size: 11px; color: var(--text-dim); font-family: var(--font-mono); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* User cards */
.user-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar-lg {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--violet), var(--accent));
  border-radius: 2px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

/* Role badge */
.role-badge {
  padding: 2px 8px;
  border-radius: 2px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.role-admin       { background: rgba(79,142,247,0.15); color: var(--accent); border: 1px solid rgba(79,142,247,0.3); }
.role-owner       { background: rgba(123,94,167,0.15); color: var(--violet); border: 1px solid rgba(123,94,167,0.3); }
.role-contributor { background: rgba(52,211,153,0.15); color: var(--success); border: 1px solid rgba(52,211,153,0.3); }
.role-reader      { background: rgba(107,114,128,0.15); color: var(--text-dim); border: 1px solid var(--border); }

/* ─── Toasts ──────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 40px; right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 260px;
  animation: toastIn 0.2s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--error); }
.toast.info    { border-left: 3px solid var(--accent); }

/* ─── Loading / skeleton ──────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-alt) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  border-radius: var(--radius);
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ─── Highlight for search results ───────────────────────── */
mark {
  background: rgba(123,94,167,0.3);
  color: var(--violet);
  padding: 0 2px;
  border-radius: 2px;
}

/* ─── Utility ─────────────────────────────────────────────── */
.hidden { display: none !important; }
.flex   { display: flex; }
.gap-8  { gap: 8px; }
.ml-auto { margin-left: auto; }
.text-dim { color: var(--text-dim); }
.text-accent { color: var(--accent); }
.text-violet { color: var(--violet); }
.mono { font-family: var(--font-mono); }

/* ================================================================
   MOBILE BOTTOM SHEET
   ================================================================ */
#mobile-sheet-backdrop { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.55); z-index:210; }
#mobile-sheet-backdrop.active { display:block; }
#mobile-sheet {
  position:fixed; bottom:0; left:0; right:0; z-index:220;
  background:var(--surface); border-top:1px solid var(--border);
  border-radius:16px 16px 0 0; max-height:85vh;
  display:flex; flex-direction:column;
  transform:translateY(100%);
  transition:transform 0.3s cubic-bezier(0.32,0.72,0,1);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
#mobile-sheet.open { transform:translateY(0); }
.mobile-sheet-handle { padding:10px 0 4px; display:flex; justify-content:center; flex-shrink:0; }
.mobile-sheet-handle-bar { width:36px; height:4px; background:var(--border-light); border-radius:2px; }
.mobile-sheet-header {
  display:flex; align-items:center; justify-content:space-between;
  padding:4px 16px 10px; border-bottom:1px solid var(--border); flex-shrink:0;
}
.mobile-sheet-header span {
  font-size:13px; font-weight:600; color:var(--text);
  font-family:var(--font-mono); letter-spacing:1px; text-transform:uppercase;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap; flex:1; margin-right:8px;
}
.mobile-sheet-body { overflow-y:auto; flex:1; -webkit-overflow-scrolling:touch; }

/* ================================================================
   MOBILE — 768px and below
   ================================================================ */
@media (max-width: 768px) {

  #app { grid-template-columns: 1fr; }

  #sidebar {
    position:fixed; top:0; left:0; width:50vw; height:100%;
    z-index:200; transform:translateX(-100%);
    transition:transform 0.25s ease; box-shadow:4px 0 24px rgba(0,0,0,0.5);
  }
  #sidebar.mobile-open { transform:translateX(0); }

  #sidebar-backdrop { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.5); z-index:199; }
  #sidebar-backdrop.active { display:block; }

  #mobile-menu-btn { display:flex !important; }

  .topbar-sep, #exportBtn, #refreshBtn { display:none !important; }

  .brand-name { font-size:14px; letter-spacing:2px; }

  #topbar { overflow:hidden; padding:0 12px; gap:8px; }
  .search-wrap { flex:1; min-width:0; }
  .search-input-wrap { min-width:0; flex:1; }
  #searchInput { min-width:0; }
  #searchScope { max-width:80px; font-size:10px; padding:0 4px; }

  #content-toolbar { padding:6px 12px; flex-wrap:wrap; height:auto; min-height:40px; }
  .breadcrumb { font-size:11px; flex:1 1 100%; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .toolbar-right { flex:1 1 100%; gap:4px; }
  .sort-select { display:none; }

  #listHeader { display:none !important; }

  .file-row {
    display:flex !important; flex-direction:row !important;
    align-items:center; padding:10px 14px; gap:10px;
    min-height:52px; border-bottom:1px solid var(--border);
  }
  .file-row-name { flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .file-name-text { font-size:14px; }
  .file-row-type,.file-row-size,.file-row-folder,.file-row-date,.file-row-ctime,.file-row-meta { display:none !important; }

  .file-row-actions { display:flex !important; opacity:1 !important; flex-shrink:0; }
  .file-row-actions .icon-btn {
    width:40px; height:40px; background:var(--surface);
    border:1px solid var(--border); border-radius:var(--radius);
    display:flex; align-items:center; justify-content:center; color:var(--accent);
  }

  #file-browser { padding-bottom:calc(env(safe-area-inset-bottom,20px) + 20px); }

  #preview-panel { position:fixed; inset:0; width:100% !important; z-index:180; overflow-y:auto; }

  #media-overlay { padding:20px; }
  #overlay-content { width:100vw !important; max-height:100vh; overflow:auto; }
  #overlay-content img { max-width:100vw; max-height:80vh; }
  #overlay-content video { max-width:100vw; }
  #overlay-content audio { width:90vw !important; max-width:360px; }

  .modal-overlay { padding:0; align-items:flex-end; }
  .modal-box { width:100%; max-width:100%; max-height:90vh; border-radius:var(--radius) var(--radius) 0 0; }

  #statusbar {
    font-size:11px; padding:0 12px;
    padding-bottom:env(safe-area-inset-bottom,0px);
    height:calc(var(--statusbar-h) + env(safe-area-inset-bottom,0px));
  }
}

@media (hover:none) and (pointer:coarse) {
  .file-row { min-height:48px; }
  .tree-node { min-height:44px; }
  .icon-btn  { min-width:36px; min-height:36px; }
}