/*
**************************************************************************************************************
* Sets up the panes container so it behaves like a responsive strip that can overflow on wider layouts.
**************************************************************************************************************
*/
.panes {
  display: flex;
  height: 100vh;
  height: 100dvh;
  width: 100vw;
  position: relative;
  overflow-x: auto;
  overflow-y: hidden;
  gap: 0;

  /* Mobile */
  @media (max-width: 767.5px) {
    flex-direction: column;
    overflow-x: hidden;
    overflow-y: auto;
  }
}

.panes-scroll-progress {
  --scroll-progress: 0%;
  --scroll-progress-track: rgba(203, 213, 225, 0.65);
  --scroll-progress-fill: rgba(30, 41, 59, 0.8);
  position: fixed;
  left: clamp(12px, 2vw, 20px);
  right: clamp(12px, 2vw, 20px);
  bottom: clamp(8px, 1.2vw, 14px);
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--scroll-progress-fill) 0%,
    var(--scroll-progress-fill) var(--scroll-progress),
    var(--scroll-progress-track) var(--scroll-progress),
    var(--scroll-progress-track) 100%
  );
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.2);
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
  pointer-events: none;
  z-index: 32;
}

.panes-scroll-progress.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 767.5px) {
  .panes-scroll-progress {
    display: none;
  }
}

@media (min-width: 768px) {
  .panes.home-active.has-scroll-right::after {
    content: '';
    position: fixed;
    top: 0;
    right: 0;
    width: clamp(48px, 6vw, 96px);
    height: 100vh;
    background: linear-gradient(
      90deg,
      rgba(255, 255, 255, 0),
      rgba(255, 255, 255, 0.98)
    );
    pointer-events: none;
    z-index: 30;
  }

  .panes.home-active.has-scroll-right::before {
    content: '>';
    position: fixed;
    top: 50%;
    right: clamp(12px, 1.6vw, 22px);
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
    color: rgba(30, 41, 59, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.6);
    display: grid;
    place-items: center;
    font-size: 22px;
    font-weight: 800;
    box-shadow:
      0 14px 28px rgba(15, 23, 42, 0.22),
      0 6px 14px rgba(15, 23, 42, 0.18);
    pointer-events: none;
    z-index: 31;
    animation: scroll-hint-pulse 1.6s ease-in-out infinite;
  }
}

@keyframes scroll-hint-pulse {
  0%,
  100% {
    transform: translateY(-50%) translateX(0);
    opacity: 0.7;
  }
  50% {
    transform: translateY(-50%) translateX(6px);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .panes.home-active.has-scroll-right::before {
    animation: none;
  }
}

/*
************************************************************************************************************
* Defines the structural shell of each pane: sizing, borders, overlap logic and shared pseudo-elements.
************************************************************************************************************
*/
.pane {
  --overlap: 10px;
  --bar-width: 160px;
  --collapsed-width: 64px;
  --pane-content-left: var(--bar-width);
  --pane-footer-overlap: var(--overlap);
  @media (max-width: 767.5px) {
    --pane-content-left: 0px;
    --pane-footer-overlap: 0px;
  }

  /* Tint everything on the pane slightly with its primary color */
  &:not(.tools)::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-color-500);
    pointer-events: none;
    opacity: 0.2;
    mix-blend-mode: color;
  }
  body.is-ios-safari &::after {
    /* Safari doesn't support mix-blend-mode */
    display: none;
  }

  box-shadow:
    0px 0px 40px 0px rgba(0, 0, 0, 0.2),
    0px 0px 7px 0px rgba(0, 0, 0, 0.5);
  height: 100%;
  max-width: 100vw;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  position: relative;
  z-index: 0;
  /* Desktop */
  @media (min-width: 768px) {
    border-radius: 8px 0 0 8px;
    border-top: 12px solid var(--top-color, var(--primary-color));
  }
  /* Mobile */
  @media (max-width: 767.5px) {
    border-top: 2px solid var(--top-color, var(--primary-color));
  }

  &:not(.active) {
    /* Desktop */
    @media (min-width: 768px) {
      width: calc(var(--collapsed-width) + var(--overlap));
      cursor: pointer;
    }
    &:last-child {
      @media (min-width: 768px) {
        width: var(--collapsed-width);
      }
    }
    /* Mobile */
    @media (max-width: 767.5px) {
      height: 30px;
      flex-shrink: 0;
    }
  }
  &.active {
    flex-grow: 1;

    /* Desktop */
    @media (min-width: 768px) {
      width: 160px;
    }
  }

  &:not(:first-child) {
    /* Desktop */
    @media (min-width: 768px) {
      margin-left: calc(-1 * var(--overlap));
    }
  }
  &:not(:last-child) {
    /* Desktop */
    @media (min-width: 768px) {
      padding-right: var(--overlap);
    }
  }
}