.wf-shell {
  --wf-left-offset: var(--wf-left-panel-width);
  --wf-right-offset: var(--wf-right-panel-width);
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--wf-gray-50);
}

.wf-shell[data-wf-left-open="false"] {
  --wf-left-offset: 0px;
}

.wf-shell[data-wf-right-open="false"] {
  --wf-right-offset: 0px;
}

.wf-shell__left,
.wf-shell__right {
  position: absolute;
  z-index: 30;
  top: 0;
  bottom: 0;
  min-width: 0;
  overflow: auto;
  padding: var(--wf-space-5);
  background: var(--wf-surface);
  transition: transform 0.18s ease;
}

.wf-shell__left {
  left: 0;
  width: var(--wf-left-panel-width);
  border-right: 1px solid var(--wf-border);
}

.wf-shell__right {
  right: 0;
  width: var(--wf-right-panel-width);
  border-left: 1px solid var(--wf-border);
}

.wf-shell[data-wf-left-open="false"] .wf-shell__left {
  transform: translateX(-100%);
}

.wf-shell[data-wf-right-open="false"] .wf-shell__right {
  transform: translateX(100%);
}

.wf-shell__header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: var(--wf-left-offset);
  right: var(--wf-right-offset);
  height: var(--wf-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--wf-space-4);
  overflow: hidden;
  padding-inline: var(--wf-space-4);
  background: var(--wf-surface);
  border-bottom: 1px solid var(--wf-border);
  transition: left 0.18s ease, right 0.18s ease;
}

.wf-shell__header-start,
.wf-shell__header-end {
  display: flex;
  align-items: center;
  gap: var(--wf-space-3);
  min-width: 0;
}

.wf-shell__header-end {
  margin-left: auto;
}

.wf-shell__brand {
  overflow: hidden;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.wf-shell__center {
  position: absolute;
  z-index: 1;
  top: var(--wf-header-height);
  bottom: 0;
  left: var(--wf-left-offset);
  right: var(--wf-right-offset);
  min-width: 0;
  overflow: auto;
  padding: var(--wf-space-6);
  transition: left 0.18s ease, right 0.18s ease;
}

.wf-shell__nav-link {
  display: flex;
  align-items: center;
  min-height: 36px;
  padding-inline: var(--wf-space-3);
  border-radius: var(--wf-radius-2);
  color: var(--wf-text);
  text-decoration: none;
}

.wf-shell__nav-link:hover,
.wf-shell__nav-link[aria-current="page"] {
  background: var(--wf-gray-100);
}

.wf-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--wf-surface);
  border: 1px solid var(--wf-border);
  border-radius: var(--wf-radius-4);
}

.wf-panel__header,
.wf-panel__footer {
  padding: var(--wf-space-4) var(--wf-space-5);
  border-bottom: 1px solid var(--wf-border);
}

.wf-panel__footer {
  border-top: 1px solid var(--wf-border);
  border-bottom: 0;
}

.wf-panel__body {
  padding: var(--wf-space-5);
}

.wf-shell__resize-handle {
  position: absolute;
  z-index: 40;
  top: 0;
  bottom: 0;
  display: none;
  width: 7px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: col-resize;
  touch-action: none;
  transition: left 0.18s ease, right 0.18s ease;
}

.wf-shell__resize-handle--left {
  left: calc(var(--wf-left-offset) - 4px);
}

.wf-shell__resize-handle--right {
  right: calc(var(--wf-right-offset) - 4px);
}

.wf-shell[data-wf-panel-resizable] .wf-shell__resize-handle {
  display: block;
}

.wf-shell[data-wf-left-open="false"] .wf-shell__resize-handle--left,
.wf-shell[data-wf-right-open="false"] .wf-shell__resize-handle--right {
  display: none;
}

.wf-shell__resize-handle::after {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 3px;
  width: 1px;
  background: transparent;
  content: "";
}

.wf-shell__resize-handle:hover::after,
.wf-shell__resize-handle:focus-visible::after,
.wf-shell[data-wf-resizing] .wf-shell__resize-handle::after {
  background: var(--wf-gray-500);
}

.wf-shell[data-wf-resizing] .wf-shell__left,
.wf-shell[data-wf-resizing] .wf-shell__right,
.wf-shell[data-wf-resizing] .wf-shell__header,
.wf-shell[data-wf-resizing] .wf-shell__center,
.wf-shell[data-wf-resizing] .wf-shell__resize-handle {
  transition: none;
}

.wf-shell[data-wf-resizing] {
  user-select: none;
}

@media (max-width: 991.98px) {
  .wf-shell {
    --wf-left-offset: min(var(--wf-left-panel-width), calc(100% - 56px));
    --wf-right-offset: min(var(--wf-right-panel-width), calc(100% - 56px));
  }

  .wf-shell[data-wf-left-open="false"] {
    --wf-left-offset: 0px;
  }

  .wf-shell[data-wf-right-open="false"] {
    --wf-right-offset: 0px;
  }

  .wf-shell__left {
    width: min(var(--wf-left-panel-width), calc(100% - 56px));
    box-shadow: var(--wf-shadow-2);
  }

  .wf-shell__right {
    width: min(var(--wf-right-panel-width), calc(100% - 56px));
    box-shadow: var(--wf-shadow-2);
  }

  .wf-shell__center {
    left: 0;
    right: 0;
    padding: var(--wf-space-4);
  }

  .wf-shell[data-wf-left-open="true"][data-wf-right-open="false"] .wf-shell__header-end {
    display: none;
  }

  .wf-shell[data-wf-left-open="false"][data-wf-right-open="true"] .wf-shell__header-start {
    display: none;
  }
}