/* =========================================================
   1. Beaver layout shell
   ========================================================= */

.cpa-lesson-shell,
.cpa-lesson-shell * {
  box-sizing: border-box;
}

.cpa-lesson-shell {
  min-height: 100vh !important;
  width: calc(100% - var(--cpa-global-rail-width)) !important;
  margin-left: var(--cpa-global-rail-width) !important;
  background: var(--cpa-bg-page) !important;
}

.cpa-lesson-shell > .fl-row-content-wrap {
  min-height: 100vh !important;
  padding: 0 !important;
  margin: 0 !important;
  background: var(--cpa-bg-page) !important;
}

.cpa-lesson-shell > .fl-row-content-wrap > .fl-row-content {
  width: 100% !important;
  max-width: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

.cpa-lesson-shell .fl-col-group {
  display: grid !important;
  grid-template-columns: var(--cpa-course-rail-width) minmax(0, 1fr);
  align-items: stretch !important;
  width: 100% !important;
  max-width: none !important;
  min-height: 100vh !important;
  transition: grid-template-columns var(--cpa-layout-speed) var(--cpa-layout-ease) !important;
}

.cpa-lesson-shell.is-course-nav-collapsed .fl-col-group {
  grid-template-columns: var(--cpa-course-rail-gutter-width) minmax(0, 1fr);
}

@media (min-width: 768px) {
  .cpa-lesson-shell.cpa-course-nav-default-collapsed:not([data-cpa-course-layout-mode]) .fl-col-group,
  .cpa-lesson-shell[data-cpa-course-nav-default="collapsed"]:not([data-cpa-course-layout-mode]) .fl-col-group,
  .cpa-course-map-shell:not([data-cpa-course-layout-mode]) .fl-col-group,
  .cpa-course-resources-shell:not([data-cpa-course-layout-mode]) .fl-col-group {
    grid-template-columns: var(--cpa-course-rail-gutter-width) minmax(0, 1fr);
  }

  .cpa-lesson-shell.cpa-course-nav-default-collapsed:not([data-cpa-course-layout-mode]) .cpa-course-nav-shell > .cpa-course-nav,
  .cpa-lesson-shell[data-cpa-course-nav-default="collapsed"]:not([data-cpa-course-layout-mode]) .cpa-course-nav-shell > .cpa-course-nav,
  .cpa-course-map-shell:not([data-cpa-course-layout-mode]) .cpa-course-nav-shell > .cpa-course-nav,
  .cpa-course-resources-shell:not([data-cpa-course-layout-mode]) .cpa-course-nav-shell > .cpa-course-nav {
    opacity: 0;
    transform: translateX(-12px);
    pointer-events: none;
  }

  .cpa-lesson-shell.cpa-course-nav-default-collapsed:not([data-cpa-course-layout-mode]) .cpa-course-nav-gutter,
  .cpa-lesson-shell[data-cpa-course-nav-default="collapsed"]:not([data-cpa-course-layout-mode]) .cpa-course-nav-gutter,
  .cpa-course-map-shell:not([data-cpa-course-layout-mode]) .cpa-course-nav-gutter,
  .cpa-course-resources-shell:not([data-cpa-course-layout-mode]) .cpa-course-nav-gutter {
    opacity: 1;
    pointer-events: auto;
  }
}

@supports selector(.cpa-lesson-shell:has([data-cpa-course-map])) {
  @media (min-width: 768px) {
    .cpa-lesson-shell:has([data-cpa-course-map]):not([data-cpa-course-layout-mode]) .fl-col-group,
    .cpa-lesson-shell:has([data-cpa-course-resources]):not([data-cpa-course-layout-mode]) .fl-col-group {
      grid-template-columns: var(--cpa-course-rail-gutter-width) minmax(0, 1fr);
    }

    .cpa-lesson-shell:has([data-cpa-course-map]):not([data-cpa-course-layout-mode]) .cpa-course-nav-shell > .cpa-course-nav,
    .cpa-lesson-shell:has([data-cpa-course-resources]):not([data-cpa-course-layout-mode]) .cpa-course-nav-shell > .cpa-course-nav {
      opacity: 0;
      transform: translateX(-12px);
      pointer-events: none;
    }

    .cpa-lesson-shell:has([data-cpa-course-map]):not([data-cpa-course-layout-mode]) .cpa-course-nav-gutter,
    .cpa-lesson-shell:has([data-cpa-course-resources]):not([data-cpa-course-layout-mode]) .cpa-course-nav-gutter {
      opacity: 1;
      pointer-events: auto;
    }
  }
}

.cpa-lesson-shell .fl-col-group::before,
.cpa-lesson-shell .fl-col-group::after {
  display: none !important;
  content: none !important;
}

.cpa-lesson-shell .fl-col-group > .fl-col {
  float: none !important;
  clear: none !important;
  width: auto !important;
  max-width: none !important;
  min-width: 0 !important;
}

/* =========================================================
   2. Course rail column
   ========================================================= */

.cpa-lesson-shell .cpa-course-rail {
  position: relative !important;
  z-index: 1;
  width: auto !important;
  max-width: none !important;
  min-width: 0 !important;
  min-height: 100vh !important;
  background: var(--cpa-course-nav-bg, var(--cpa-bg-rail)) !important;
  border-right: 1px solid var(--cpa-course-nav-line, var(--cpa-line)) !important;
  box-shadow: 5px 0 20px rgba(30, 27, 24, 0.25);
  overflow: hidden !important;
  transition:
    background var(--cpa-layout-speed) var(--cpa-layout-ease),
    border-color var(--cpa-layout-speed) var(--cpa-layout-ease) !important;
}

.cpa-course-rail > .fl-col-content {
  width: var(--cpa-course-rail-width) !important;
  min-width: var(--cpa-course-rail-width) !important;
  max-width: var(--cpa-course-rail-width) !important;
  height: 100vh !important;
  min-height: 100vh !important;
  display: flex !important;
  flex-direction: column !important;
  overflow: hidden !important;
  background: var(--cpa-course-nav-bg, var(--cpa-bg-rail)) !important;
  padding: 0 !important;
  margin: 0 !important;
}

.cpa-lesson-shell.is-course-nav-collapsed .cpa-course-rail {
  background: var(--cpa-course-nav-bg, var(--cpa-bg-rail)) !important;
  border-right-color: var(--cpa-course-nav-line, var(--cpa-line)) !important;
}

.cpa-course-rail .fl-module,
.cpa-course-rail .fl-module-content {
  min-height: 0 !important;
  margin: 0 !important;
}

.cpa-course-nav-shortcode,
.cpa-course-nav-shortcode .fl-module-content {
  flex: 1 1 auto !important;
  height: 100% !important;
  min-height: 0 !important;
}

/* =========================================================
   3. Lesson main column and internal course rail gutter
   ========================================================= */

.cpa-lesson-shell .cpa-lesson-main {
  width: auto !important;
  max-width: none !important;
  min-width: 0 !important;
  min-height: 100vh !important;
  background: var(--cpa-bg-page) !important;
}

.cpa-lesson-main > .fl-col-content {
  position: relative;
  min-height: 100vh !important;
  padding: 28px 32px 56px !important;
  margin: 0 !important;
  background: var(--cpa-bg-page) !important;
  transition: padding var(--cpa-layout-speed) var(--cpa-layout-ease) !important;
}

/* Legacy external Beaver expander module.
   Remove/disable the module in Beaver once the internal gutter PHP is installed. */
.cpa-course-nav-expander-wrap {
  display: none !important;
}

.cpa-course-nav-shell {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  background: var(--cpa-course-nav-bg, var(--cpa-bg-rail));
  color: var(--cpa-course-nav-text, var(--cpa-ink));
  font-family: var(--cpa-font-ui);
}

.cpa-course-nav-shell > .cpa-course-nav {
  position: relative;
  z-index: 1;
  width: 100%;
  opacity: 1;
  transform: translateX(0);
  transition:
    opacity 0.22s ease,
    transform var(--cpa-layout-speed) var(--cpa-layout-ease) !important;
}

.cpa-course-nav-gutter {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--cpa-course-rail-gutter-width);
  display: block;
  background: var(--cpa-course-nav-bg, var(--cpa-bg-rail));
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.18s ease,
    background 0.18s ease !important;
}

.cpa-lesson-shell.is-course-nav-collapsed .cpa-course-nav-shell > .cpa-course-nav {
  opacity: 0;
  transform: translateX(-12px);
  pointer-events: none;
}

.cpa-lesson-shell.is-course-nav-collapsed .cpa-course-nav-gutter {
  opacity: 1;
  pointer-events: auto;
}

.cpa-course-nav-expand {
  appearance: none !important;
  -webkit-appearance: none !important;
  position: relative;
  width: 100% !important;
  height: 100% !important;
  min-width: 0 !important;
  min-height: 100% !important;
  max-width: none !important;
  max-height: none !important;
  padding: 0 !important;
  margin: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  display: inline-flex !important;
  align-items: flex-start;
  justify-content: center;
  background: transparent !important;
  color: var(--cpa-course-nav-muted, var(--cpa-muted)) !important;
  font-family: var(--cpa-font-ui);
  font-size: 0 !important;
  line-height: 0 !important;
  cursor: pointer;
  box-shadow: none !important;
  overflow: hidden !important;
  transform: none;
  transition:
    background 0.18s ease,
    color 0.18s ease !important;
}

.cpa-course-nav-expand::before,
.cpa-course-nav-expand::after {
  content: none !important;
  display: none !important;
}

.cpa-course-nav-expand i {
  position: absolute;
  top: var(--cpa-course-rail-gutter-arrow-y);
  left: 50%;
  display: block !important;
  color: currentColor !important;
  font-size: 17px !important;
  line-height: 1 !important;
  font-style: normal !important;
  transform: translateX(-50%);
  transition:
    color 0.18s ease,
    transform 0.18s ease !important;
}

.cpa-course-nav-expand:hover {
  background: var(--cpa-course-nav-surface, var(--cpa-bg-rail-hover)) !important;
  color: var(--cpa-accent) !important;
  filter: none !important;
}

.cpa-course-nav-expand:hover i {
  transform: translateX(calc(-50% + 1px));
}

.cpa-course-nav-expand:focus {
  outline: none !important;
}

.cpa-course-nav-expand:focus-visible {
  background: var(--cpa-course-nav-surface, var(--cpa-bg-rail-hover)) !important;
  color: var(--cpa-accent) !important;
  box-shadow: inset 0 0 0 2px var(--cpa-course-nav-focus, rgba(237, 100, 59, 0.22)) !important;
}