/* Public workspace styling. Design tokens, reset, and shared
   Material 3 primitives live in /css/app.css (loaded first). */
body { overflow: hidden; }

.app {
  height: 100%;
  display: grid;
  grid-template-rows: var(--header-h) minmax(0, 1fr) var(--status-h);
  grid-template-columns: 1fr;
}

/* ---------- header ---------- */
.app-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-4);
  background: var(--md-sys-color-surface-container);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  min-width: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  flex: none;
  text-decoration: none;
  color: inherit;
  padding: var(--space-1) var(--space-2) var(--space-1) 0;
  border-radius: var(--radius-xs);
}

.brand-mark {
  width: 36px;
  height: 36px;
  flex: none;
  border-radius: 10px;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  display: grid;
  place-items: center;
}

.brand-mark svg { width: 22px; height: 22px; }

.brand-text { min-width: 0; }
.brand-name {
  display: block;
  font: var(--type-title);
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}
.brand-tag {
  display: block;
  font: var(--type-label);
  color: var(--md-sys-color-on-surface-variant);
}

.search {
  flex: 1;
  min-width: 0;
  max-width: 560px;
  position: relative;
  margin: 0 auto;
}

.search-field {
  width: 100%;
  height: 40px;
  border: 0;
  border-radius: var(--radius-xl);
  background: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
  padding: 0 40px 0 42px;
  transition: background var(--dur) var(--ease-out);
}
.search-field::placeholder { color: var(--md-sys-color-on-surface-variant); }
.search-field:hover { background: var(--md-sys-color-surface-bright); }
.search-field:focus {
  background: var(--md-sys-color-surface-container-lowest);
  box-shadow: inset 0 0 0 2px var(--md-sys-color-primary);
}

.search-icon,
.search-clear {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: var(--md-sys-color-on-surface-variant);
  pointer-events: none;
}
.search-icon { left: 4px; }
.search-clear {
  right: 2px;
  pointer-events: auto;
  border: 0;
  background: transparent;
  border-radius: 50%;
}
.search-clear[hidden] { display: none; }
.search-clear:hover { background: var(--md-sys-color-surface-container-high); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: none;
  margin-left: auto;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--md-sys-color-on-surface-variant);
  display: inline-grid;
  place-items: center;
  position: relative;
  text-decoration: none;
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}
.icon-btn:hover {
  background: color-mix(in srgb, var(--md-sys-color-on-surface) 8%, transparent);
  color: var(--md-sys-color-on-surface);
}
.icon-btn:active { background: color-mix(in srgb, var(--md-sys-color-on-surface) 12%, transparent); }
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn[aria-pressed="true"] {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.icon-btn.with-label {
  width: auto;
  height: 36px;
  padding: 0 12px 0 10px;
  border-radius: var(--radius-xl);
  gap: 6px;
  display: inline-flex;
  align-items: center;
  font: var(--type-label-lg);
  color: var(--md-sys-color-on-surface);
}
.icon-btn.with-label .btn-label { white-space: nowrap; }

/* ---------- shell ---------- */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 0;
}

.sidebar {
  background: var(--md-sys-color-surface);
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-height: 0;
  overflow: auto;
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 48px;
  padding: 0 var(--space-4) 0 var(--space-3);
  border: 0;
  border-radius: var(--radius-xl);
  background: transparent;
  color: var(--md-sys-color-on-surface-variant);
  font: var(--type-label-lg);
  text-align: left;
  width: 100%;
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}
.nav-item svg { width: 22px; height: 22px; flex: none; }
.nav-item:hover { background: var(--md-sys-color-surface-container); color: var(--md-sys-color-on-surface); }
.nav-item[aria-current="page"] {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  font-weight: 600;
}

.nav-badge {
  margin-left: auto;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 10px;
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  font: var(--type-label);
  display: inline-grid;
  place-items: center;
}
.nav-item[aria-current="page"] .nav-badge {
  background: var(--md-sys-color-on-secondary-container);
  color: var(--md-sys-color-secondary-container);
}
.nav-badge[hidden] { display: none; }

.staging-card {
  margin-top: auto;
  background: var(--md-sys-color-surface-container-low);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-align: left;
  color: inherit;
  width: 100%;
}
.staging-card:hover { background: var(--md-sys-color-surface-container); }
.staging-size {
  margin-top: var(--space-2) !important;
  color: var(--md-sys-color-primary) !important;
}
.staging-card h2 {
  margin: 0 0 var(--space-2);
  font: var(--type-title-sm);
}
.staging-card p {
  margin: 0;
  font: var(--type-label);
  color: var(--md-sys-color-on-surface-variant);
}
.staging-count {
  font: var(--type-title);
  margin: var(--space-2) 0;
  color: var(--md-sys-color-primary);
}
.sidebar-hint {
  font: var(--type-label);
  color: var(--md-sys-color-on-surface-variant);
  margin: 0;
  line-height: 1.45;
}

.workspace {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--md-sys-color-surface-container-low);
  border-top-left-radius: var(--radius-lg);
  position: relative;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  min-width: 0;
  flex-wrap: wrap;
}

.crumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  flex: 1;
  font: var(--type-title);
}
.crumbs ol {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}
.crumbs li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  color: var(--md-sys-color-on-surface-variant);
}
.crumbs li:last-child { color: var(--md-sys-color-on-surface); }
.crumbs .sep { opacity: 0.55; }
.file-count {
  font: var(--type-label);
  color: var(--md-sys-color-on-surface-variant);
  white-space: nowrap;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 20px;
  border: 0;
  border-radius: var(--radius-xl);
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  font: var(--type-label-lg);
  transition: box-shadow var(--dur) var(--ease-out), filter var(--dur) var(--ease-out), transform 80ms var(--ease-out);
}
.btn svg { width: 18px; height: 18px; }
.btn:hover { box-shadow: var(--elev-1); filter: brightness(1.04); }
.btn:active { transform: translateY(1px); }
.btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
  box-shadow: none;
  filter: none;
  transform: none;
}

.btn.tonal {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}
.btn.outlined {
  background: transparent;
  color: var(--md-sys-color-primary);
  box-shadow: inset 0 0 0 1px var(--md-sys-color-outline);
}
.btn.outlined:hover {
  background: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
  box-shadow: inset 0 0 0 1px var(--md-sys-color-primary);
}
.btn.text {
  background: transparent;
  color: var(--md-sys-color-primary);
  padding: 0 12px;
}
.btn.danger {
  background: var(--md-sys-color-error);
  color: var(--md-sys-color-on-error);
}

.segmented {
  display: inline-flex;
  padding: 4px;
  background: var(--md-sys-color-surface-container-highest);
  border-radius: var(--radius-xl);
}
.segmented button {
  border: 0;
  background: transparent;
  color: var(--md-sys-color-on-surface-variant);
  min-height: 32px;
  min-width: 36px;
  padding: 0 10px;
  border-radius: var(--radius-xl);
  display: inline-grid;
  place-items: center;
}
.segmented button svg { width: 18px; height: 18px; }
.segmented button[aria-pressed="true"],
.segmented button.active {
  background: var(--md-sys-color-surface-container-lowest);
  color: var(--md-sys-color-on-surface);
  box-shadow: var(--elev-1);
}

.select {
  height: 40px;
  border: 0;
  border-radius: var(--radius-xl);
  background: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
  padding: 0 28px 0 12px;
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23544f48' stroke-width='2' stroke-linecap='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat: no-repeat;
  background-position: right 8px center;
  max-width: 160px;
}

.setup-stack {
  padding: 0 var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.setup-stack:empty { display: none; }
.problem {
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  font: var(--type-label);
  line-height: 1.5;
  background: var(--md-sys-color-surface-container-lowest);
  border: 1px solid var(--md-sys-color-outline-variant);
}
.problem b { display: block; font: var(--type-title-sm); margin-bottom: 2px; }
.problem.error {
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
  border-color: transparent;
}
.problem.warning {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border-color: transparent;
}
.problem.info { color: var(--md-sys-color-on-surface); }

.pending-bar {
  margin: var(--space-2) var(--space-5) 0;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.pending-bar[hidden] { display: none; }
.pending-bar .grow { flex: 1; min-width: 140px; }
.pending-bar strong { display: block; font: var(--type-title-sm); }
.pending-bar span { font: var(--type-label); opacity: 0.85; }

.browser {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: var(--space-4) var(--space-5) var(--space-6);
}

.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(176px, 1fr));
  gap: var(--space-3);
}

.file-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--md-sys-color-surface-container-lowest);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--elev-1);
  text-align: left;
  min-width: 0;
  color: inherit;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}
.file-card:hover { box-shadow: var(--elev-2); }
.file-card:focus-visible { box-shadow: var(--focus); }
.file-card.selected {
  border-color: var(--md-sys-color-primary);
  background: color-mix(in srgb, var(--md-sys-color-primary) 8%, var(--md-sys-color-surface-container-lowest));
  box-shadow: 0 0 0 1px var(--md-sys-color-primary), var(--elev-1);
}
.file-card.synced-flash {
  box-shadow: 0 0 0 1px var(--md-sys-color-primary-container), var(--elev-1);
}
.file-card.pushing { opacity: 0.92; }
.file-card.failed { border-color: color-mix(in srgb, var(--md-sys-color-error) 45%, transparent); }

.thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--md-sys-color-surface-container-high);
  overflow: hidden;
}
.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.file-glyph {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--md-sys-color-on-surface-variant);
}
.file-glyph .ext {
  font: var(--type-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--md-sys-color-surface-container-lowest);
  color: var(--md-sys-color-on-surface);
}

.card-check {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 22px;
  height: 22px;
  margin: 0;
  accent-color: var(--md-sys-color-primary);
  z-index: 1;
}

.status-chip {
  position: absolute;
  top: 8px;
  right: 8px;
  font: var(--type-label);
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--md-sys-color-inverse-surface);
  color: var(--md-sys-color-inverse-on-surface);
  max-width: calc(100% - 48px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.status-chip.pending,
.status-chip.local { background: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container); }
.status-chip.pushing { background: var(--md-sys-color-tertiary-container); color: var(--md-sys-color-on-tertiary-container); }
.status-chip.synced { background: var(--md-sys-color-primary-container); color: var(--md-sys-color-on-primary-container); }
.status-chip.failed { background: var(--md-sys-color-error-container); color: var(--md-sys-color-on-error-container); }

.progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: color-mix(in srgb, var(--md-sys-color-on-surface) 12%, transparent);
}
.progress > i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--md-sys-color-primary);
  transition: width 120ms linear;
}

.card-body {
  padding: 10px 12px 12px;
  min-width: 0;
}
.card-name {
  font: var(--type-title-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-meta {
  margin-top: 2px;
  font: var(--type-label);
  color: var(--md-sys-color-on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-actions {
  position: absolute;
  top: 6px;
  right: 6px;
  display: flex;
  gap: 2px;
  opacity: 0;
}
.file-card:hover .card-actions,
.file-card:focus-within .card-actions,
.file-card .card-actions:focus-within { opacity: 1; }
.card-actions .icon-btn {
  width: 32px;
  height: 32px;
  background: var(--md-sys-color-surface-container-lowest);
  color: var(--md-sys-color-on-surface);
  box-shadow: var(--elev-1);
}

/* list view */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--md-sys-color-surface-container-lowest);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--elev-1);
}
.list-head,
.list-row {
  display: grid;
  grid-template-columns: 36px 48px minmax(0, 1.6fr) 110px 88px 120px 108px 40px;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-3);
  min-height: 52px;
}
.list-head {
  min-height: 40px;
  font: var(--type-label);
  color: var(--md-sys-color-on-surface-variant);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container);
}
.list-row {
  border: 0;
  background: transparent;
  width: 100%;
  text-align: left;
  color: inherit;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.list-row:last-child { border-bottom: 0; }
.list-row:hover { background: var(--md-sys-color-surface-container-low); }
.list-row.selected { background: color-mix(in srgb, var(--md-sys-color-primary) 10%, transparent); }
.list-thumb {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  overflow: hidden;
  background: var(--md-sys-color-surface-container-high);
  display: grid;
  place-items: center;
}
.list-thumb img { width: 100%; height: 100%; object-fit: cover; }
.list-name {
  min-width: 0;
  font: var(--type-title-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.list-cell {
  font: var(--type-label);
  color: var(--md-sys-color-on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.list-row .status-chip { position: static; max-width: 100%; }

.empty {
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-8);
  color: var(--md-sys-color-on-surface-variant);
}
.empty-mark {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
  display: grid;
  place-items: center;
  margin-bottom: var(--space-4);
}
.empty h2 {
  margin: 0 0 var(--space-2);
  font: var(--type-title);
  color: var(--md-sys-color-on-surface);
}
.empty p { margin: 0; max-width: 36ch; }

.links-panel {
  margin: 0 var(--space-5) var(--space-5);
  background: var(--md-sys-color-surface-container-lowest);
  border-radius: var(--radius-md);
  box-shadow: var(--elev-1);
  padding: var(--space-4);
}
.links-panel[hidden] { display: none; }
.links-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
}
.links-head .segmented { flex-wrap: wrap; }
.links-head h2 { margin: 0; font: var(--type-title-sm); }
.links-head p { margin: 4px 0 0; font: var(--type-label); color: var(--md-sys-color-on-surface-variant); }
#link-output {
  width: 100%;
  min-height: 72px;
  max-height: 180px;
  resize: vertical;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-xs);
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font: 12px/1.6 var(--font-mono);
  padding: var(--space-3);
  white-space: pre;
  overflow: auto;
}
#link-output:focus { box-shadow: inset 0 0 0 2px var(--md-sys-color-primary); }

.status-bar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--space-5);
  background: var(--md-sys-color-surface-container);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  font: var(--type-label);
  color: var(--md-sys-color-on-surface-variant);
  min-width: 0;
  overflow: hidden;
}
.status-bar span { white-space: nowrap; }
.push-meter {
  flex: 1;
  min-width: 80px;
  height: 4px;
  border-radius: 4px;
  background: var(--md-sys-color-surface-container-highest);
  overflow: hidden;
}
.push-meter[hidden] { display: none; }
.push-meter > i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--md-sys-color-primary);
}

/* drop overlay */
.drop-layer {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: none;
  place-items: center;
  background: color-mix(in srgb, var(--md-sys-color-primary-container) 88%, transparent);
  border: 2px dashed var(--md-sys-color-primary);
  border-radius: inherit;
  color: var(--md-sys-color-on-primary-container);
  text-align: center;
  padding: var(--space-6);
}
.workspace.dragover .drop-layer,
#dropzone.dragover .drop-layer,
.app.dragover .drop-layer { display: grid; }
.app.dragover .drop-layer {
  position: fixed;
  inset: 0;
  z-index: 35;
  border-radius: 0;
}
.drop-layer strong { display: block; font: var(--type-title); margin-bottom: var(--space-2); }

/* dialogs / menus */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.overlay {
  position: fixed;
  inset: 0;
  background: var(--md-sys-color-scrim);
  z-index: 40;
  display: none;
}
.overlay.open { display: block; }

.dialog {
  position: fixed;
  z-index: 50;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(920px, calc(100vw - 24px));
  max-height: calc(100vh - 24px);
  overflow: auto;
  background: var(--md-sys-color-surface-container-lowest);
  color: var(--md-sys-color-on-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--elev-3);
  display: none;
}
.dialog.open { display: block; }
.dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.dialog-head h2 { margin: 0; font: var(--type-title); min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.preview-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(240px, 0.8fr);
  min-height: 280px;
}
.preview-stage {
  background: var(--md-sys-color-surface-container-high);
  display: grid;
  place-items: center;
  min-height: 280px;
  padding: var(--space-4);
}
.preview-stage img {
  max-width: 100%;
  max-height: min(62vh, 560px);
  object-fit: contain;
  border-radius: var(--radius-xs);
}
.preview-meta {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
}
.meta-row { min-width: 0; }
.meta-row dt {
  font: var(--type-label);
  color: var(--md-sys-color-on-surface-variant);
  margin: 0 0 2px;
}
.meta-row dd {
  margin: 0;
  font: var(--type-body);
  word-break: break-all;
}
.meta-row input {
  width: 100%;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-xs);
  background: var(--md-sys-color-surface);
  padding: 8px 10px;
  font: 12px/1.4 var(--font-mono);
}
.preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
}

.confirm {
  width: min(420px, calc(100vw - 24px));
}
.confirm .dialog-body { padding: var(--space-5); }
.confirm p { margin: 0 0 var(--space-5); color: var(--md-sys-color-on-surface-variant); }
.confirm-actions { display: flex; justify-content: flex-end; gap: var(--space-2); }

.menu {
  position: fixed;
  z-index: 60;
  min-width: 196px;
  max-width: min(280px, calc(100vw - 16px));
  padding: 8px 0;
  background: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface);
  border-radius: var(--radius-xs);
  box-shadow: var(--elev-3);
  display: none;
}
.menu.open { display: block; }
.menu button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  border: 0;
  background: transparent;
  min-height: 40px;
  padding: 0 16px;
  text-align: left;
  font: var(--type-body);
  color: var(--md-sys-color-on-surface);
}
.menu button:hover,
.menu button:focus-visible { background: var(--md-sys-color-surface-container-high); }
.menu button[disabled] { opacity: 0.4; cursor: not-allowed; }
.menu .sep {
  height: 1px;
  margin: 6px 12px;
  background: var(--md-sys-color-outline-variant);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 56px;
  transform: translateX(-50%) translateY(12px);
  background: var(--md-sys-color-inverse-surface);
  color: var(--md-sys-color-inverse-on-surface);
  padding: 12px 18px;
  border-radius: var(--radius-xs);
  font: var(--type-label-lg);
  opacity: 0;
  pointer-events: none;
  z-index: 70;
  max-width: min(420px, calc(100vw - 24px));
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.fab {
  display: none;
  position: fixed;
  right: 16px;
  bottom: calc(var(--bottom-nav-h) + 16px);
  z-index: 15;
  width: 56px;
  height: 56px;
  border: 0;
  border-radius: 16px;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  box-shadow: var(--elev-2);
}
.fab svg { width: 24px; height: 24px; }

.bottom-nav {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--bottom-nav-h);
  background: var(--md-sys-color-surface-container);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  z-index: 12;
  padding: 0 8px;
}
.bottom-nav button {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--md-sys-color-on-surface-variant);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font: var(--type-label);
  min-width: 0;
}
.bottom-nav button svg { width: 22px; height: 22px; }
.bottom-nav button[aria-current="page"] { color: var(--md-sys-color-on-surface); }
.bottom-nav button[aria-current="page"] .nav-icon {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}
.nav-icon {
  width: 56px;
  height: 28px;
  border-radius: 14px;
  display: grid;
  place-items: center;
}

.mobile-search-toggle { display: none; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .shell { grid-template-columns: var(--rail-w) minmax(0, 1fr); }
  .sidebar { padding: var(--space-3) var(--space-2); }
  .nav-item {
    flex-direction: column;
    justify-content: center;
    gap: 2px;
    min-height: 64px;
    padding: 8px 4px;
    border-radius: var(--radius-md);
    font: var(--type-label);
    text-align: center;
  }
  .staging-card, .sidebar-hint { display: none; }
  .brand-tag { display: none; }
}

@media (max-width: 820px) {
  body { overflow: auto; }
  .app {
    height: auto;
    min-height: 100%;
    grid-template-rows: var(--header-h) auto auto;
    padding-bottom: calc(var(--bottom-nav-h) + 8px);
  }
  .shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .bottom-nav { display: flex; }
  .fab { display: grid; place-items: center; }
  .workspace { border-radius: 0; min-height: calc(100dvh - var(--header-h) - var(--status-h) - var(--bottom-nav-h)); }
  .browser { overflow: visible; }
  .status-bar { position: sticky; bottom: var(--bottom-nav-h); }
  .btn .btn-hide-sm { display: none; }
  .toolbar { padding: var(--space-3); }
  .browser, .setup-stack, .pending-bar, .links-panel { padding-left: var(--space-3); padding-right: var(--space-3); margin-left: var(--space-3); margin-right: var(--space-3); }
  .setup-stack, .pending-bar { margin-left: var(--space-3); margin-right: var(--space-3); }
  .preview-layout { grid-template-columns: 1fr; }
  .brand-name { max-width: 34vw; }
}

@media (max-width: 640px) {
  .app-header { padding: 0 var(--space-2); gap: var(--space-1); }
  .search { position: static; max-width: none; }
  .search:not(.expanded) {
    flex: 0 0 0;
    width: 0;
    min-width: 0;
    overflow: hidden;
    margin: 0;
  }
  .search:not(.expanded) .search-field,
  .search:not(.expanded) .search-icon,
  .search:not(.expanded) .search-clear { display: none; }
  .mobile-search-toggle { display: inline-grid; }
  .hide-phone { display: none !important; }
  #format-tabs { flex-wrap: wrap; }
  .search.expanded {
    position: absolute;
    left: 8px;
    right: 8px;
    top: 12px;
    max-width: none;
    z-index: 5;
  }
  .header-actions .btn-label { display: none; }
  .header-actions .icon-btn.with-label { width: 40px; height: 40px; padding: 0; border-radius: 50%; justify-content: center; }
  .file-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-2); }
  .list-head { display: none; }
  .list-row {
    grid-template-columns: 28px 40px minmax(0, 1fr) 40px;
    min-height: 64px;
  }
  .list-row .hide-sm { display: none; }
  .toolbar-actions .select { max-width: 120px; }
  .dialog { width: 100vw; max-height: 100dvh; height: 100dvh; border-radius: 0; left: 0; top: 0; transform: none; }
  .toast { bottom: calc(var(--bottom-nav-h) + 72px); }
}

@media (min-width: 1440px) {
  .file-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .workspace { margin-right: var(--space-3); margin-bottom: var(--space-3); border-radius: var(--radius-lg); }
}

@media (hover: none) {
  .card-actions { opacity: 1; }
}