/* ------------------------------------------------------------------
   Darren Oorloff — a printed Swiss catalog you happen to scroll.

   One 12-column modular grid spans the whole canvas:
     · index: client on col 1, project/thumb on col 3, year on col 5
     · pane split at col 7
     · gallery plates span cols 8–11
     · meta text hangs one column inside the image field (cols 9, 11)
   One type size. One weight. The work is the only color.
------------------------------------------------------------------- */

:root {
  --ground: #e4e4e4;
  --ink: #111111;
  --muted: #666666;
  --pad: 14px;          /* cell inset from every grid line          */
  --hang: 48px;         /* shared hanging line both panes start on  */
  --gap-internal: 48px; /* thumbnail → its own caption row          */
  --gap-external: 36px; /* caption row → next thumbnail             */
}

/* --- Reset -------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
}

body {
  height: 100%;
  overflow: hidden;
  background: var(--ground);
  color: var(--ink);
  font: 500 0.8125rem / 1.45 "Helvetica Neue", Helvetica, Arial, sans-serif;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-size-adjust: 100%;
}

img,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ol[role="list"] {
  list-style: none;
}

::selection {
  background: var(--ink);
  color: var(--ground);
}

:focus-visible {
  outline: 1.5px solid var(--ink);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: var(--pad);
  top: var(--pad);
  z-index: 20;
  padding: 4px 8px;
  background: var(--ink);
  color: var(--ground);
  transform: translateY(-300%);
}

.skip-link:focus {
  transform: none;
}

/* --- The frame: 12 columns, full viewport ------------------------- */

.frame {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  height: 100dvh;
}

.pane {
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(17, 17, 17, 0.25) transparent;
}

.pane--index {
  grid-column: 1 / 7;
}

.pane--detail {
  grid-column: 7 / 13;
}

/* --- Rails (fixed over the outer margins) ------------------------- */

.rail {
  position: fixed;
  z-index: 10;
}

.rail a {
  display: block;
  writing-mode: vertical-rl;
  background: var(--ground); /* passing text slides under the plate */
  padding: 2px 1px 10px;
}

.rail--left {
  left: var(--pad);
  top: var(--pad);
}

.rail--right {
  right: var(--pad);
  top: var(--pad);
  bottom: var(--pad);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

.rail__social {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rail__social a {
  padding: 10px 1px 2px; /* bottom-anchored: passing text arrives from above */
}

.rail a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* --- Index (left pane): 6 of the 12 columns ----------------------- */

.index__head {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  height: var(--hang);
  align-items: start;
  padding-top: var(--pad);
  background: var(--ground);
}

.index__head-label {
  padding-left: var(--pad);
}

.index__head-label--project {
  grid-column: 3 / 5;
}

.index__head-label--year {
  grid-column: 5 / 7;
}

.index {
  padding-bottom: 25vh; /* room to scroll the last entry clear */
}

.index__item {
  margin-bottom: var(--gap-external);
}

.index__link {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}

.index__thumb {
  grid-column: 3 / 5;
  padding-left: var(--pad);
  min-height: 1px;
}

.index__thumb img {
  width: 100%;
  background-color: rgba(17, 17, 17, 0.04);
  background-size: cover;
  background-position: center;
}

.index__meta {
  grid-column: 1 / 7;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin-top: var(--gap-internal);
}

.index__client {
  grid-column: 1 / 3;
  padding-left: var(--pad);
}

.index__title {
  grid-column: 3 / 5;
  padding-left: var(--pad);
}

.index__year {
  grid-column: 5 / 7;
  padding-left: var(--pad);
  font-variant-numeric: tabular-nums;
}

/* Selection grammar: underline = selected. Hover previews it. */
.index__link:hover .index__meta span,
.index__link.is-active .index__meta span {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.index__empty {
  padding: calc(var(--hang) + var(--pad)) 0 0 var(--pad);
  color: var(--muted);
}

/* --- Project detail (right pane) ----------------------------------- */

.project {
  padding-top: var(--hang);
  padding-bottom: 120px;
}

.project__gallery {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  row-gap: 10px;
}

.project__media {
  grid-column: 2 / 6; /* global cols 8–11: the plate field */
}

.project__media img,
.project__media video {
  width: 100%;
  background-color: rgba(17, 17, 17, 0.04);
  background-size: cover;
  background-position: center;
}

.project__caption {
  margin-top: 6px;
  font-size: 0.6875rem;
  color: var(--muted);
}

.project__meta {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  row-gap: 44px;
  margin-top: 56px;
}

.project__heading {
  display: contents;
  font-size: inherit;
  font-weight: inherit;
}

.project__client {
  grid-row: 1;
  grid-column: 3 / 5;
  padding-left: var(--pad);
}

.project__title {
  grid-row: 1;
  grid-column: 5 / 7;
  padding-left: var(--pad);
}

.project__description {
  grid-row: 2;
  grid-column: 3 / 5;
  padding-left: var(--pad);
}

.project__credits {
  grid-row: 2;
  grid-column: 5 / 6;
  padding-left: var(--pad);
}

.project__description p + p {
  margin-top: 1.45em;
}

/* Editor-inserted typographic indent — ~a quarter of the measure,
   like the deep first-line indents in printed Swiss catalogs */
.project .indent {
  display: inline-block;
  width: 24%;
}

.project__description a,
.project__credits a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.project--empty {
  padding: calc(var(--hang) + var(--pad)) 0 0;
  color: var(--muted);
}

.project--empty p {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}

.project--empty p::before {
  content: "";
  grid-column: 1 / 2;
}

/* --- 404: still on the grid ----------------------------------------- */

.notfound {
  grid-column: 1 / 13;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  align-content: start;
  padding-top: var(--hang);
}

.notfound__text {
  grid-column: 3 / 7;
  padding-left: var(--pad);
}

.notfound__text a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* --- Image arrival: the one permitted motion ----------------------- */

img.will-fade {
  opacity: 0;
}

img.is-loaded {
  opacity: 1;
  transition: opacity 200ms ease-out;
}

@media (prefers-reduced-motion: reduce) {
  img.will-fade {
    opacity: 1;
  }

  img.is-loaded {
    transition: none;
  }
}

/* --- Below 900px: the catalog folds to a single column ------------- */

@media (max-width: 899px) {
  body {
    overflow: auto;
  }

  .frame {
    display: flex;
    flex-direction: column;
    height: auto;
  }

  .pane {
    overflow: visible;
  }

  /* Rails become a fixed horizontal masthead on one solid ground strip */
  body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 48px;
    background: var(--ground);
    z-index: 9;
  }

  .rail a {
    writing-mode: horizontal-tb;
  }

  .rail--left {
    top: 0;
    left: 0;
    right: auto;
    padding: var(--pad) 0 0 var(--pad);
  }

  .rail--right {
    top: 0;
    right: 0;
    bottom: auto;
    left: auto;
    flex-direction: row;
    gap: 18px;
    align-items: baseline;
    padding: var(--pad) var(--pad) 0 0;
  }

  .rail__social {
    flex-direction: row;
    gap: 14px;
  }

  .rail a,
  .rail__social a {
    padding: 14px 6px; /* honest tap targets */
    margin: -12px -2px; /* without disturbing the optical position */
  }

  .pane--index {
    padding-top: calc(var(--hang) + var(--pad));
  }

  .index__head {
    display: none; /* the labels lose their grid meaning here */
  }

  .index {
    padding-bottom: 0;
  }

  .index__item {
    margin-bottom: 44px;
  }

  .index__thumb {
    grid-column: 1 / 7;
    padding-right: var(--pad);
  }

  .index__meta {
    margin-top: 12px;
  }

  .index__client {
    grid-column: 1 / 3;
  }

  .index__title {
    grid-column: 3 / 5;
  }

  .index__year {
    grid-column: 5 / 7;
  }

  /* On a project page the work leads, the index follows */
  [data-page="work"] .pane--detail {
    order: -1;
  }

  [data-page="work"] .pane--index {
    padding-top: 64px;
  }

  .pane--detail {
    padding-top: calc(var(--hang) + var(--pad));
  }

  [data-page="home"] .pane--detail,
  [data-page="home"] .project {
    padding-top: 0;
  }

  .project {
    padding-bottom: 64px;
  }

  .project__media {
    grid-column: 1 / 7;
    padding: 0 var(--pad);
  }

  .project__caption {
    padding-left: var(--pad);
  }

  .project__client,
  .project__description {
    grid-column: 1 / 4;
  }

  .project__title,
  .project__credits {
    grid-column: 4 / 7;
  }

  .project__meta {
    row-gap: 32px;
    margin-top: 40px;
  }
}