.workspace-layer {
  position: fixed;
  inset: auto 0 0 0;
  height: min(78vh, 760px);
  display: grid;
  grid-template-rows: auto auto 1fr;
  background: var(--bg-panel-strong);
  border-top: var(--border-width-strong) solid var(--border-strong);
  transform: translateY(105%);
  transition: transform var(--transition-slow);
  z-index: 120;
  box-shadow: var(--shadow-panel);
}

.workspace-layer.open {
  transform: translateY(0);
}

.workspace-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 14px 16px 8px;
}

.workspace-tabs {
  display: flex;
  gap: var(--space-xs);
  overflow-x: auto;
  padding: 0 var(--space-md) var(--space-sm);
}

.workspace-panels {
  min-height: 0;
  overflow: hidden;
}

.workspace-panel {
  display: none;
  height: 100%;
  overflow: hidden;
}

.workspace-panel.active {
  display: flex;
}

.workspace-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  height: 100%;
  padding: 0 var(--space-md) var(--space-md);
}

.workspace-card {
  background: var(--bg-panel);
  border: var(--border-width) solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  padding: 14px;
}

.split-card {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
}

.file-browser-layout,
.terminal-layout,
.git-layout {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
}

.file-browser-main,
.terminal-output,
.git-file-list {
  min-height: 0;
  overflow: auto;
}

.workspace-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-xs);
  min-height: 180px;
  color: var(--text-muted);
}

.file-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.file-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  padding: 12px 14px;
  border-radius: 14px;
  border: var(--border-width) solid var(--border);
  background: var(--bg-card);
}

.file-entry button,
.panel-btn {
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
}

.file-entry button {
  width: 100%;
  text-align: left;
}

.file-entry.active {
  border-color: var(--accent-border);
  background: var(--accent-soft);
}

.file-entry-meta,
.git-file-status {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.terminal-output {
  border-radius: var(--radius-md);
  background: var(--snapshot-code-bg);
  border: var(--border-width) solid var(--snapshot-border);
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  padding: 14px;
  white-space: pre-wrap;
  word-break: break-word;
}

.screen-frame {
  width: 100%;
  min-height: 220px;
  border-radius: 18px;
  border: var(--border-width) solid var(--border);
  background:
    linear-gradient(135deg, var(--accent-soft), transparent),
    var(--bg-panel-muted);
  object-fit: contain;
}

.timeline-shell {
  display: grid;
  grid-template-rows: auto auto 1fr;
  min-height: 0;
}

.timeline-grid {
  display: grid;
  gap: var(--space-sm);
  min-height: 0;
  overflow: auto;
}

.timeline-card {
  display: grid;
  gap: var(--space-sm);
  padding: 12px;
  border-radius: var(--radius-md);
  border: var(--border-width) solid var(--border);
  background: var(--bg-card);
}

.timeline-thumb {
  width: 100%;
  min-height: 180px;
  border-radius: 16px;
  border: var(--border-width) solid var(--border);
  background:
    linear-gradient(135deg, var(--accent-soft), transparent),
    var(--bg-panel-muted);
  object-fit: cover;
}

.timeline-card-body {
  display: grid;
  gap: var(--space-xs);
}

.timeline-card-title {
  font-weight: 700;
  color: var(--text-main);
}

.timeline-empty {
  min-height: 220px;
}

@media (min-width: 980px) {
  .workspace-layer {
    position: relative;
    inset: unset;
    width: min(420px, 38vw);
    height: auto;
    transform: none;
    border-left: var(--border-width) solid var(--border);
    border-top: none;
  }

  .workspace-layer.open {
    transform: none;
  }

  .timeline-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}