/* ABOUTME: Styles for the sprint page and the per-design notes pages. One family, */
/* ABOUTME: a gallery-wall palette, and haint blue as the single accent. */

:root {
  --wall: #eeede8;
  --sheet: #fbfbf9;
  --ink: #1b1a17;
  --ink-2: #625f58;
  --rule: #d5d2ca;
  --haint: #a6c6cd;
  --haint-ink: #2f6a78;
  --font: "Bricolage Grotesque", "Helvetica Neue", Arial, sans-serif;
  --measure: 40rem;
  --wide: 76rem;
}

* { box-sizing: border-box; }
img { max-width: 100%; height: auto; }

html { background: var(--wall); }

body {
  margin: 0;
  padding: 0 clamp(1rem, 4vw, 3rem) 4rem;
  color: var(--ink);
  background: var(--wall);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.55;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--haint-ink); text-decoration-thickness: 1px; text-underline-offset: 0.14em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--haint-ink); outline-offset: 3px; }

h1, h2, h3 { font-weight: 600; letter-spacing: -0.01em; line-height: 1.1; margin: 0; }
h1 { font-size: clamp(2.4rem, 5.6vw, 4.6rem); letter-spacing: -0.025em; max-width: 22ch; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); letter-spacing: -0.02em; margin-bottom: 1rem; }
h3 { font-size: 1.35rem; margin-bottom: 0.5rem; }
p { margin: 0 0 1em; }
.muted { color: var(--ink-2); }

/* Masthead */
.masthead { max-width: var(--wide); margin: 0 auto; padding: 3rem 0 2.5rem; }
.dek { max-width: 54rem; font-size: 1.25rem; line-height: 1.5; margin-top: 1.5rem; }

/* The wall: four frames in a row */
.wall {
  max-width: var(--wide);
  margin: 0 auto 5rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.wall-frame {
  display: block;
  background: var(--sheet);
  padding: 0.6rem 0.6rem 0.75rem;
  border: 1px solid var(--rule);
  text-decoration: none;
  color: var(--ink);
  transition: transform 160ms ease;
}
.wall-frame:hover { transform: translateY(-3px); color: var(--ink); }
.wall-frame img, .wall-empty {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top;
  border: 1px solid var(--rule);
  background: var(--wall);
}
.wall-empty { display: grid; place-items: center; color: var(--ink-2); font-size: 0.9rem; }
.wall-label { display: block; margin-top: 0.6rem; font-size: 0.9rem; }
.wall-label b { font-weight: 600; margin-right: 0.35rem; color: var(--haint-ink); }
.wall-caption { grid-column: 1 / -1; color: var(--ink-2); font-size: 0.95rem; margin: 0.25rem 0 0; }

/* Sections */
section, .colophon { max-width: var(--wide); margin: 0 auto; }
.process, .brief, .exhibits, .next { padding-top: 2rem; margin-bottom: 5rem; border-top: 1px solid var(--rule); }
.lede { max-width: var(--measure); font-size: 1.125rem; margin-bottom: 2rem; }
.process p, .process blockquote, .process dl, .process table, .next p { max-width: var(--measure); }

/* Process steps: the number sits in the margin on wide screens */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.steps > li { position: relative; padding: 1.5rem 0 1.5rem 4.5rem; border-top: 1px solid var(--rule); counter-increment: step; }
.steps > li::before {
  content: counter(step);
  position: absolute; left: 0; top: 1.35rem;
  font-size: 2rem; font-weight: 300; line-height: 1; color: var(--haint-ink);
  font-variant-numeric: tabular-nums;
}
blockquote {
  margin: 1.25rem 0 1.5rem;
  padding: 0.25rem 0 0.25rem 1.25rem;
  border-left: 3px solid var(--haint);
  color: var(--ink);
}
blockquote p { margin-bottom: 0.4em; }
blockquote cite { font-style: normal; font-size: 0.9rem; color: var(--ink-2); }
blockquote cite::before { content: "\2014\00a0"; }

.sparks {
  list-style: none; margin: 0 0 1.5rem; padding: 0;
  max-width: 44rem;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.35rem 1.5rem;
}
.sparks li { padding: 0.25rem 0; border-bottom: 1px solid var(--rule); color: var(--ink-2); }
.sparks li.picked { color: var(--ink); font-weight: 600; border-bottom-color: var(--haint-ink); }

.qa { margin: 1rem 0 1.5rem; }
.qa div { padding: 0.75rem 0; border-top: 1px solid var(--rule); }
.qa dt { font-weight: 600; margin-bottom: 0.25rem; }
.qa dd { margin: 0; color: var(--ink-2); }

table.techniques { border-collapse: collapse; width: 100%; margin: 1rem 0 1.5rem; font-size: 0.95rem; }
.techniques th, .techniques td { text-align: left; padding: 0.55rem 0.75rem 0.55rem 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.techniques th { font-weight: 600; }

/* Documents: the brief and the prompts, shown as sheets pinned to the wall */
details.doc { margin: 0 0 1rem; }
details.doc > summary {
  cursor: pointer; list-style: none;
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.5rem 0; font-weight: 600;
}
details.doc > summary::-webkit-details-marker { display: none; }
details.doc > summary::before {
  content: ""; width: 0.55rem; height: 0.55rem;
  border-right: 2px solid var(--haint-ink); border-bottom: 2px solid var(--haint-ink);
  transform: rotate(-45deg); transition: transform 120ms ease;
}
details.doc[open] > summary::before { transform: rotate(45deg); }
.sheet {
  background: var(--sheet);
  border: 1px solid var(--rule);
  padding: clamp(1.25rem, 3vw, 2.5rem);
  max-width: 48rem;
  font-size: 1rem;
}
.sheet h1 { font-size: 1.75rem; margin-bottom: 1rem; }
.sheet h2 { font-size: 1.25rem; margin: 1.75rem 0 0.5rem; }
.sheet h3 { font-size: 1.05rem; margin: 1.25rem 0 0.4rem; }
.sheet ul, .sheet ol { padding-left: 1.25rem; }
.sheet li { margin-bottom: 0.35em; }
.sheet table { border-collapse: collapse; width: 100%; font-size: 0.92rem; margin: 1rem 0; }
.sheet th, .sheet td { text-align: left; padding: 0.4rem 0.6rem 0.4rem 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.sheet pre { background: var(--wall); padding: 1rem; overflow-x: auto; font-size: 0.85rem; }
.sheet code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; }
.sheet hr { border: 0; border-top: 1px solid var(--rule); margin: 2rem 0; }
.sheet img { max-width: 100%; }

/* Exhibits */
.exhibit { padding: 2.5rem 0 3rem; border-top: 1px solid var(--rule); }
.exhibit-head { display: grid; grid-template-columns: auto 1fr; column-gap: 1rem; align-items: baseline; margin-bottom: 1.5rem; }
.exhibit-num { font-size: 2rem; font-weight: 300; color: var(--haint-ink); line-height: 1; }
.exhibit-head h3 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.02em; }
.exhibit-line { grid-column: 2; margin: 0.35rem 0 0; font-size: 1.125rem; max-width: 40rem; }
.exhibit-body { display: grid; grid-template-columns: minmax(0, 2fr) minmax(16rem, 1fr); gap: 1.5rem; margin-bottom: 1.5rem; align-items: start; }
.frame { display: block; background: var(--sheet); border: 1px solid var(--rule); padding: 0.6rem; transition: transform 160ms ease; }
.frame:hover { transform: translateY(-3px); }
.frame img { display: block; width: 100%; height: auto; border: 1px solid var(--rule); }
.frame--empty { display: grid; place-items: center; aspect-ratio: 16 / 10; color: var(--ink-2); text-align: center; }
.frame--empty p { margin: 0; padding: 1rem; }
.frame--mobile { width: 9.5rem; margin: 1.25rem 0 0; }
.placard { align-self: start; }
.facts { margin: 0; padding: 0.25rem 0 0; }
.facts div { display: grid; grid-template-columns: 8.5rem 1fr; gap: 0.75rem; padding: 0.45rem 0; border-bottom: 1px solid var(--rule); font-size: 0.95rem; }
.facts dt { color: var(--ink-2); }
.facts dd { margin: 0; }
.exhibit-links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; align-items: center; margin-top: 1.25rem; font-size: 0.95rem; }
.button {
  display: inline-block; padding: 0.55rem 1rem;
  background: var(--ink); color: var(--sheet); text-decoration: none; font-weight: 600;
  border: 1px solid var(--ink);
}
.button:hover { background: var(--haint-ink); border-color: var(--haint-ink); color: var(--sheet); }

/* Colophon */
.colophon { padding-top: 2rem; border-top: 1px solid var(--rule); color: var(--ink-2); font-size: 0.95rem; max-width: var(--measure); margin-left: 0; }

/* Notes pages */
.notes-page { max-width: 52rem; margin: 0 auto; }
.notes-head { padding: 2.5rem 0 1.5rem; }
.notes-head .back { display: inline-block; margin-bottom: 1.5rem; }
.notes-kicker { color: var(--haint-ink); font-weight: 600; margin-bottom: 0.25rem; }
.notes-head h1 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 0.75rem; }
.sheet--page { max-width: none; }

@media (max-width: 900px) {
  .wall { grid-template-columns: repeat(2, 1fr); }
  .exhibit-body { grid-template-columns: 1fr; }
  .frame--mobile { width: 8rem; }
  .sparks { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .wall { grid-template-columns: 1fr; }
  .steps > li { padding-left: 0; padding-top: 3rem; }
  .steps > li::before { top: 0.9rem; }
  .sparks { grid-template-columns: 1fr; }
  .facts div { grid-template-columns: 7rem 1fr; }
  .exhibit-head { grid-template-columns: 1fr; }
  .exhibit-line { grid-column: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .wall-frame, .frame, details.doc > summary::before { transition: none; }
  .wall-frame:hover, .frame:hover { transform: none; }
}