/*
 * The case studies' own parts: the bar's section links and gauge, the
 * opening title card, the reading column, framed figures and their
 * enlarged view, design goals, quotes, the implications, and the link to
 * the next study. The shared look is console.css. Plan:
 * _plans/2026-10-06_console-restyle.md.
 */

/* ── The bar ──────────────────────────────────────────────────────────── */

/* The name leads home, with an arrow back. */
.bar-back {
  margin-right: 0.5em;
  color: var(--c-orange);
}

/* The study's sections, at every width: on a narrow screen they scroll
   sideways and fade at the far edge. */
.bar-sections {
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
  padding-right: 1.5rem;
  -webkit-mask-image: linear-gradient(
    to right,
    #000 calc(100% - 2rem),
    transparent
  );
  mask-image: linear-gradient(to right, #000 calc(100% - 2rem), transparent);
}

.bar-sections::-webkit-scrollbar {
  display: none;
}

.bar-sections a {
  flex: none;
}

/* The gauge: a thin line along the bar's foot, filled as far down the
   page as the reader is (console.js). */
.bar-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--c-orange);
  transform: scaleX(0);
  transform-origin: left center;
  pointer-events: none;
}

/* ── The reading frame ────────────────────────────────────────────────── */

/* Everything below the bar sits in one frame: words in a column a line's
   comfortable length, figures and panels out to the frame's full width. */
.cs-frame {
  max-width: 68rem;
  margin-inline: auto;
}

/* ── The opening card ─────────────────────────────────────────────────── */

/* The study opens as an episode does: its title card, inside the
   instrument frame, then what it was and where it was published. */
.opener {
  position: relative;
  display: flex;
  align-items: center;
  min-height: calc(86svh - var(--bar-h));
  padding-block: clamp(3rem, 8svh, 5rem) clamp(2.5rem, 6svh, 4rem);
  overflow-x: clip;
}

.opener > .wrap {
  width: 100%;
}

@media (min-width: 640px) {
  /* Room for the frame's readout over the title. */
  .opener {
    padding-top: clamp(5rem, 10svh, 6.5rem);
  }
}

@media (max-height: 520px) {
  .opener {
    padding-block: 2.5rem;
  }
}

/* The title fills most of the frame's width, held to a quarter of the
   screen's height, so a short name (WREX) does not tower. Held to the
   name's width too, so its line stays at its foot. */
.opener-card {
  --cap: 26svh;
  max-width: calc(var(--cap) * var(--em) * var(--squeeze));
}

@media (min-width: 768px) {
  .opener-card {
    width: 80%;
  }
}

.opener-facts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  margin-top: clamp(1.5rem, 4svh, 2.5rem);
}

/* Where it was published, boxed as the show boxes a label. */
.venue {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--c-line-strong);
  font-family: var(--font-label);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.opener-text {
  max-width: 44rem;
  margin-top: 1.25rem;
  font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.25rem);
}

.opener .actions {
  margin-top: 1.5rem;
}

/* The abstract, in a panel of its own under the card, as wide as its
   words want and no wider. */
.abstract {
  max-width: 48rem;
}

/* ── Sections ─────────────────────────────────────────────────────────── */

.cs-section {
  padding-top: clamp(4rem, 11svh, 7rem);
  overflow-x: clip;
}

.cs-card {
  margin-bottom: clamp(1.5rem, 4svh, 2.5rem);
}

/* A section's title: the cards' serif, squeezed, at a size that opens the
   section without taking the screen. */
.cs-title {
  font-size: clamp(2.2rem, 1.4rem + 3.4vw, 4.4rem);
  line-height: 0.92;
  text-transform: uppercase;
  text-wrap: balance;
}

/* ── The reading column ───────────────────────────────────────────────── */

/* A section's content: words held to about 75 characters a line, and the
   figures, splits and panels let out to the frame's width. */
.flow > * {
  max-width: 44rem;
}

.flow > :is(.split, .cards, .panel) {
  max-width: none;
}

/* A figure is let out as far as it was made to go (`--w`, on the figure),
   up to the frame. */
.flow > .fig {
  max-width: var(--w, none);
}

.flow > * + * {
  margin-top: 1.35rem;
}

.flow p,
.flow li {
  line-height: 1.75;
}

.flow strong {
  color: var(--c-white);
  font-weight: 650;
}

/* A subsection's heading: the cards' serif in mixed case, as a card sets
   an episode's title. */
.flow h3 {
  margin-top: 3rem;
  font-family: var(--font-card);
  font-size: clamp(1.45rem, 1.15rem + 1.1vw, 2.1rem);
  font-weight: 900;
  line-height: 1.12;
  color: var(--c-white);
}

.flow ol {
  padding-left: 2.75rem;
  list-style: decimal-leading-zero;
}

.flow ol li + li {
  margin-top: 0.75rem;
}

.flow ol li::marker {
  color: var(--c-orange);
  font-family: var(--font-mono);
  font-size: 0.85em;
}

/* A plain list: an orange tick before each line, as on an instrument. */
.flow ul:not([class]) {
  padding-left: 0;
  list-style: none;
}

.flow ul:not([class]) li {
  position: relative;
  padding-left: 1.4rem;
}

.flow ul:not([class]) li + li {
  margin-top: 0.6rem;
}

.flow ul:not([class]) li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 0.65rem;
  height: 2px;
  background: var(--c-orange);
}

/* A heading under a subheading ("Task Completion"): a label, set as the
   show sets one. */
.flow h4 {
  margin-top: 2.5rem;
  font-family: var(--font-label);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.3;
  text-transform: uppercase;
  color: var(--c-white);
}

.flow h3 + h4 {
  margin-top: 1.25rem;
}

/* "Inline:", "Session:", "Protocol:": a list's or figure's name, set as
   the show sets a small label. */
.lead-in {
  font-family: var(--font-label);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.flow .lead-in + ol {
  margin-top: 0.6rem;
}

/* Words beside a figure, on a wide screen. */
.split {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.split > div > * + * {
  margin-top: 1.35rem;
}

/* Half and half: a narrower figure column shrank a screenshot's text past
   reading. A wide strip of a screenshot goes under its words instead. */
@media (min-width: 960px) {
  .split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

/* ── Figures ──────────────────────────────────────────────────────────── */

/* A figure in a frame: its number on a strip over it, the image as it is
   (no tint), never wider than the image was made. The whole frame links to
   the image; console.js opens it over the page instead. */
.fig {
  width: 100%;
  max-width: var(--w, none);
}

.flow > .fig {
  margin-top: 2rem;
}

.fig-frame {
  display: block;
  border: 1px solid var(--c-line);
  background: #000;
  color: inherit;
  text-decoration: none;
  cursor: zoom-in;
}

.fig-frame:hover {
  border-color: var(--c-orange);
  color: inherit;
}

.fig-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0.8rem;
  border-bottom: 1px solid var(--c-line);
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  line-height: 1.3;
  text-transform: uppercase;
  color: var(--c-orange);
}

.fig-strip :first-child {
  color: var(--c-white);
  font-weight: 600;
}

.fig-frame:hover .fig-strip :last-child {
  color: var(--c-white);
}

.fig-image {
  display: block;
  background: #fff;
}

.fig-image img {
  width: 100%;
}

.fig figcaption {
  max-width: 60rem;
  margin-top: 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ── Design goals ─────────────────────────────────────────────────────── */

/* A design goal, as a readout: its name small in orange, the goal itself
   in the cards' serif, its key words lit. */
.goal {
  padding: 1.1rem 1.4rem 1.3rem;
  border: 1px solid var(--c-line-strong);
  background: var(--c-panel);
}

.flow > .goal {
  margin-top: 2rem;
}

.flow > .goal + p {
  margin-top: 2rem;
}

.goal-label {
  font-family: var(--font-label);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.goal .goal-text {
  margin-top: 0.45rem;
  font-family: var(--font-card);
  font-size: clamp(1.2rem, 1rem + 0.9vw, 1.65rem);
  font-weight: 900;
  line-height: 1.28;
  color: var(--c-white);
}

.goal-text strong {
  color: var(--c-orange);
  font-weight: 900;
}

/* ── Quotes ───────────────────────────────────────────────────────────── */

/* A participant's words, on an orange rule, and who said them. */
.quote {
  margin-block: 2rem;
  padding: 0.2rem 0 0.2rem 1.5rem;
  border-left: 3px solid var(--c-orange);
}

.quote blockquote {
  margin: 0;
}

.quote blockquote p {
  font-size: clamp(1.1rem, 1rem + 0.35vw, 1.3rem);
  font-style: italic;
  line-height: 1.6;
  color: var(--c-white);
}

.quote figcaption {
  margin-top: 0.55rem;
  font-family: var(--font-label);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-orange);
}

/* ── Numbered panels ──────────────────────────────────────────────────── */

/* Findings, features, implications: each a panel numbered on its rule.
   A run of them is an ordered list (`.cards`), so the column's own list
   numbers stay off; one standing alone between figures is a `.panel`. */
.flow > .panel {
  margin-top: 2rem;
}

.flow .cards {
  display: grid;
  gap: clamp(1rem, 2vw, 1.5rem);
  margin-top: 2rem;
  padding-left: 0;
  list-style: none;
}

.flow .cards > li + li {
  margin-top: 0;
}

:is(.cards, .flow > .panel) .panel-body {
  max-width: 50rem;
}

:is(.cards, .flow > .panel) .panel-body > * + * {
  margin-top: 1.1rem;
}

/* A panel's own heading: the cards' serif, in mixed case. */
.flow :is(.cards, .panel) :is(h3, h4) {
  margin-top: 0;
  font-family: var(--font-card);
  font-size: clamp(1.3rem, 1.1rem + 0.8vw, 1.8rem);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.15;
  text-transform: none;
  color: var(--c-white);
}

/* ── The next study ───────────────────────────────────────────────────── */

.next {
  margin-top: clamp(4rem, 11svh, 7rem);
  padding-block: clamp(3.5rem, 9svh, 6rem);
  border-top: 1px solid var(--c-line);
  overflow-x: clip;
}

.next-link {
  display: block;
  margin-block: 0.25rem 1.75rem;
  color: var(--c-white);
  text-decoration: none;
}

.next-link:hover {
  color: var(--c-orange);
}

.next-title {
  display: block;
  font-size: clamp(2.6rem, 1.6rem + 4.2vw, 5.75rem);
  line-height: 0.9;
  text-transform: uppercase;
  color: inherit;
}

/* ── An enlarged figure ───────────────────────────────────────────────── */

/* The figure over a darkened page, as large as the screen allows, with a
   way to close it at the top. */
.zoom {
  width: 100vw;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--c-text);
}

.zoom[open] {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.zoom::backdrop {
  background: rgb(0 0 0 / 0.92);
}

.zoom-bar {
  display: flex;
  justify-content: flex-end;
  padding: 0.9rem var(--gutter);
}

.zoom-stage {
  display: grid;
  place-items: center;
  min-height: 0;
  padding: 0 var(--gutter) var(--gutter);
}

/* Held to the screen, less the Close bar and the gutter under it: a
   percentage height against the grid's row let a tall figure run off the
   screen. */
.zoom-stage img {
  max-width: 100%;
  max-height: calc(100dvh - 4.75rem - var(--gutter));
  object-fit: contain;
  background: #fff;
  box-shadow: 0 0 0 1px var(--c-line-strong);
}

/* The page under the dialog stays put. */
html:has(.zoom[open]) {
  overflow: hidden;
}