/* A complete project directory, with chapters expanded only for its local case. */
@media screen {
  .portfolio-preview {
    --editorial-rail: 176px;
    --case-header-height: 64px;
    --case-anchor-offset: 96px;
  }

  .portfolio-preview > section {
    scroll-margin-top: var(--case-header-height);
  }

  .portfolio-preview .case-body > .page:not(.first):not(:has(footer)) {
    scroll-margin-top: var(--case-anchor-offset);
  }

  .portfolio-preview .case-rail {
    top: calc(var(--case-header-height) + 28px);
    min-height: 0;
    max-height: calc(100dvh - var(--case-header-height) - 48px);
    padding: 0 14px 8px 0;
    overflow-y: auto;
    overscroll-behavior-y: contain;
    scrollbar-width: thin;
  }

  .portfolio-preview .case-rail-title {
    margin: 0 0 16px 24px;
    color: var(--tx3);
    font-size: 11px;
    font-weight: 500;
    line-height: 1.6;
    letter-spacing: .08em;
  }

  .portfolio-preview .case-project-switch { display: none; }

  .portfolio-preview .case-project-list {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .portfolio-preview .case-project-item {
    margin: 0;
    padding: 0;
  }

  .portfolio-preview .case-project-item + .case-project-item {
    margin-top: 10px;
  }

  .portfolio-preview .case-project-link {
    display: grid;
    grid-template-columns: 16px minmax(0, 1fr);
    align-items: baseline;
    gap: 8px;
    padding: 8px 0;
    color: var(--tx2);
    font-size: 13px;
    font-weight: 500;
    line-height: 1.65;
    text-decoration: none !important;
    transition: color .18s ease;
  }

  .portfolio-preview .case-project-number {
    color: var(--tx3);
    font-size: 10px;
    font-variant-numeric: tabular-nums;
  }

  .portfolio-preview .case-project-name { overflow-wrap: anywhere; }

  .portfolio-preview .case-project-link:hover,
  .portfolio-preview .case-project-link[aria-current="page"],
  .portfolio-preview .case-project-link[aria-current="page"] .case-project-number {
    color: var(--green);
  }

  .portfolio-preview .case-project-link[aria-current="page"] { font-weight: 650; }

  .portfolio-preview .case-rail-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: 2px 0 14px 24px;
    padding: 0;
    overflow: visible;
  }

  .portfolio-preview .case-rail-nav a {
    padding: 7px 0 7px 12px;
    border-left: 1px solid var(--line);
    font-size: 12px;
    line-height: 1.6;
  }

  .portfolio-preview .case-rail-nav a[aria-current="location"] {
    border-left-color: var(--green);
    color: var(--green);
  }
}

@media screen and (max-width: 1100px) and (min-width: 901px) {
  .portfolio-preview { --editorial-rail: 164px; }
}

@media screen and (max-width: 900px) {
  .portfolio-preview { --case-anchor-offset: 182px; }

  .portfolio-preview .case-rail {
    top: var(--case-header-height);
    z-index: 12;
    max-height: none;
    margin-top: -8px;
    margin-bottom: 28px;
    padding: 8px 0 0;
    overflow: visible;
    background: #fffffff5;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
  }

  .portfolio-preview .case-rail-title { display: none; }

  .portfolio-preview .case-project-switch {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0;
    color: var(--tx3);
    font-size: 11px;
    line-height: 1.6;
  }

  .portfolio-preview .case-project-switch select {
    flex: 1;
    min-width: 0;
    min-height: 32px;
    padding: 4px 24px 4px 0;
    border: 0;
    border-radius: 0;
    background-color: transparent;
    color: var(--green);
    font: 600 13px/1.6 var(--font);
    cursor: pointer;
  }

  .portfolio-preview .case-project-switch select:focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 2px;
  }

  .portfolio-preview .case-project-item { display: none; }
  .portfolio-preview .case-project-item.is-expanded { display: block; }
  .portfolio-preview .case-project-item + .case-project-item { margin-top: 0; }
  .portfolio-preview .case-project-link { display: none; }

  .portfolio-preview .case-rail-nav {
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 22px;
    margin: 0;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
  }

  .portfolio-preview .case-rail-nav a {
    flex: 0 0 auto;
    padding: 8px 0 10px;
    border-left: 0;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
  }

  .portfolio-preview .case-rail-nav a[aria-current="location"] {
    border-bottom-color: var(--green);
  }
}

@media screen and (max-width: 650px) {
  .portfolio-preview { --case-header-height: 56px; }
  .portfolio-preview .case-rail { margin-bottom: 24px; }
}