/**
 * Horizontal split panes only (e.g. Markdown editor | preview).
 * Toggle class .qw-preview-focus on root .qw-split-layout.split
 */

.toolbar .qw-split-preview-switch {
  margin-left: auto;
}

/* Pill control + iOS-style track */
.qw-split-preview-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  cursor: pointer;
  margin: 0;
  padding: 8px 14px 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition:
    border-color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
  user-select: none;
}

.qw-split-preview-switch:hover {
  border-color: rgba(88, 166, 255, 0.38);
  background: rgba(88, 166, 255, 0.07);
}

.qw-split-preview-switch:focus-within {
  border-color: rgba(88, 166, 255, 0.48);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.18);
}

.qw-split-preview-switch-text {
  font-size: 0.84rem;
  font-weight: 600;
  color: rgba(248, 250, 252, 0.92);
  letter-spacing: 0.01em;
}

.qw-split-preview-switch-ui {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.qw-split-preview-switch-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.qw-split-preview-switch-track {
  position: relative;
  display: block;
  width: 46px;
  height: 28px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.35);
  transition:
    background 0.22s ease,
    border-color 0.22s ease,
    box-shadow 0.22s ease;
}

.qw-split-preview-switch-track::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(165deg, #f8fafc 0%, #cbd5e1 100%);
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.35),
    0 1px 0 rgba(255, 255, 255, 0.25) inset;
  transition: transform 0.24s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.qw-split-preview-switch-input:checked + .qw-split-preview-switch-track {
  background: linear-gradient(135deg, rgba(88, 166, 255, 0.55), rgba(139, 92, 246, 0.42));
  border-color: rgba(147, 197, 253, 0.45);
  box-shadow:
    inset 0 1px 2px rgba(0, 0, 0, 0.15),
    0 0 16px rgba(88, 166, 255, 0.22);
}

.qw-split-preview-switch-input:checked + .qw-split-preview-switch-track::after {
  transform: translate(18px, -50%);
  background: linear-gradient(165deg, #ffffff 0%, #e0e7ff 100%);
}

.qw-split-preview-switch-input:focus-visible + .qw-split-preview-switch-track {
  outline: none;
  box-shadow:
    0 0 0 3px rgba(88, 166, 255, 0.35),
    inset 0 1px 3px rgba(0, 0, 0, 0.35);
}

/* Split layout: expand preview column */
.qw-split-layout.split.qw-preview-focus {
  grid-template-columns: 1fr;
}

.qw-split-layout.split.qw-preview-focus .qw-split-editor-pane {
  display: none !important;
}

.qw-split-layout.split.qw-preview-focus .qw-split-preview-pane {
  min-height: min(78vh, 860px);
}

.qw-split-layout.split.qw-preview-focus .qw-split-preview-pane .preview-wrap {
  min-height: min(74vh, 820px);
}

@media (max-width: 960px) {
  .qw-split-layout.split.qw-preview-focus .qw-split-preview-pane,
  .qw-split-layout.split.qw-preview-focus .qw-split-preview-pane .preview-wrap {
    min-height: min(62vh, 680px);
  }

  .toolbar .qw-split-preview-switch {
    margin-left: 0;
    width: 100%;
    justify-content: space-between;
  }
}