.preview-drawer {
  position: sticky;
  z-index: 12;
  top: 16px;
  align-self: start;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: clamp(360px, calc(100vh - 32px), 760px);
  min-height: 0;
  padding: 16px;
  border: 1px solid var(--panel-line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow-lift);
}

.preview-drawer-header,
.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--panel-line);
}

#previewHeading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  margin: 0;
}

#previewLineCount {
  flex: 0 0 auto;
  color: var(--text-faint);
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.dialog-header h2 {
  margin: 0;
  font-family: "Chakra Petch", sans-serif;
  font-size: 18px;
}

.preview-dot {
  display: inline-block;
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px var(--success-soft);
}

.dialog-close {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--panel-line);
  border-radius: 8px;
  background: var(--panel-raised);
  color: var(--text-muted);
  font-size: 21px;
  line-height: 1;
}

.dialog-close:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.preview-actions {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr) minmax(0, 1fr);
  gap: 8px;
  padding: 10px 0;
}

.preview-actions .text-btn {
  min-height: 34px;
}

.preview-actions #downloadBtn,
.preview-actions #previewClearBtn {
  justify-self: stretch;
}

.preview-actions .preview-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

.preview-actions .preview-primary:hover {
  color: var(--accent-ink);
  filter: brightness(1.07);
}

#previewYaml {
  flex: 1;
  min-height: 0;
  overflow: auto;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  background: var(--panel-soft);
  color: var(--text-muted);
  font-size: 11.5px;
  line-height: 1.65;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.yml-key { color: var(--accent-2); }
.yml-value { color: var(--text); }
.yml-comment { color: var(--text-faint); }

@media (max-width: 980px) {
  .preview-drawer {
    position: relative;
    top: auto;
    height: min(560px, 72vh);
  }
}

@media (max-width: 520px) {
  .preview-actions { grid-template-columns: 1fr 1fr; }
}

.app-dialog {
  width: min(620px, calc(100% - 28px));
  max-height: min(78vh, 720px);
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--panel-line-strong);
  border-radius: 14px;
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow-lift);
}
.app-dialog::backdrop { background: rgba(0, 0, 0, 0.56); backdrop-filter: blur(4px); }
.app-dialog .dialog-header { padding: 16px 18px 12px; }
.dialog-body { overflow: auto; max-height: calc(78vh - 74px); padding: 16px 18px 20px; color: var(--text-muted); }
.dialog-body ol { margin: 0; padding-left: 20px; }
.dialog-body li + li { margin-top: 8px; }
.shortcut-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 18px; }
.shortcut-grid span { padding: 9px; border: 1px solid var(--panel-line); border-radius: 8px; background: var(--panel-soft); font-size: 11.5px; }
.validation-list, .recent-list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.validation-item, .recent-item { padding: 10px 11px; border: 1px solid var(--panel-line); border-radius: 8px; background: var(--panel-soft); }
.validation-item.error { border-color: color-mix(in srgb, var(--danger) 45%, var(--panel-line)); background: var(--danger-soft); }
.validation-item.warning { border-color: color-mix(in srgb, var(--warning) 45%, var(--panel-line)); background: var(--warning-soft); }
.validation-item.success { border-color: color-mix(in srgb, var(--success) 45%, var(--panel-line)); background: var(--success-soft); }
.validation-item strong { display: block; margin-bottom: 2px; color: var(--text); }
.recent-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.recent-item strong { display: block; color: var(--text); }
.recent-item small { color: var(--text-faint); }
.recent-actions { display: flex; gap: 6px; }
.empty-dialog { padding: 18px; border: 1px dashed var(--panel-line); border-radius: 8px; text-align: center; color: var(--text-faint); }

@media (max-width: 620px) {
  .shortcut-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .preview-drawer { transition: none; }
}


/* Round 4 recent build history controls */
.recent-dialog-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.recent-dialog-header h2 { margin: 0; }
.dialog-header-actions { display: flex; align-items: center; gap: 8px; }
.danger-btn { border-color: color-mix(in srgb, var(--danger) 55%, var(--panel-line)); color: var(--danger); }
.danger-btn:hover { border-color: var(--danger); background: var(--danger-soft); }
@media (max-width: 520px) {
  .recent-dialog-header { align-items: flex-start; }
  .dialog-header-actions { flex-wrap: wrap; justify-content: flex-end; }
  .recent-item { align-items: flex-start; flex-direction: column; }
}

/* Round 5 YAML status colors and history actions */
.preview-dot.state-green { background: var(--success); box-shadow: 0 0 0 3px var(--success-soft); }
.preview-dot.state-yellow { background: var(--warning); box-shadow: 0 0 0 3px var(--warning-soft); }
.preview-dot.state-orange { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.preview-dot.state-red { background: var(--danger); box-shadow: 0 0 0 3px var(--danger-soft); }
.preview-dot.state-neutral { background: var(--text-faint); box-shadow: 0 0 0 3px color-mix(in srgb, var(--text-faint) 18%, transparent); }
.recent-actions { flex-wrap: wrap; justify-content: flex-end; }

/* Round 6 YAML preview status and line-count treatment */
#previewLineCount {
  text-transform: uppercase;
  letter-spacing: 0.075em;
}
.preview-dot.state-green { background: var(--state-green); box-shadow: 0 0 0 3px var(--state-green-soft); }
.preview-dot.state-yellow { background: var(--state-yellow); box-shadow: 0 0 0 3px var(--state-yellow-soft); }
.preview-dot.state-orange { background: var(--state-orange); box-shadow: 0 0 0 3px var(--state-orange-soft); }
.preview-dot.state-red { background: var(--state-red); box-shadow: 0 0 0 3px var(--state-red-soft); }