/* ---------------------------------------------------------------- fonts -- */

@font-face {
  font-family: 'Archivo';
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
  src: url(fonts/archivo-var-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
  src: url(fonts/archivo-var-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Courier Prime';
  font-weight: 400;
  font-display: swap;
  src: url(fonts/courierprime-400-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Courier Prime';
  font-weight: 400;
  font-display: swap;
  src: url(fonts/courierprime-400-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Courier Prime';
  font-weight: 700;
  font-display: swap;
  src: url(fonts/courierprime-700-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Courier Prime';
  font-weight: 700;
  font-display: swap;
  src: url(fonts/courierprime-700-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* --------------------------------------------------------------- tokens -- */

:root {
  /* two inks on stock */
  --stock:        #d9d6cc;
  --stock-deep:   #cbc8bd;
  --stock-pale:   #e4e1d8;
  --ink:          #12100e;
  --ink-soft:     #4a453d;
  --ink-faint:    #5f594f;
  --red:          #d9231e;   /* the stamp's ink: rules and borders only */
  --red-text:     #a5140f;   /* status in words, at small sizes */
  --field:        #12100e;   /* the department rail, printed solid */
  --field-rule:   #423d35;   /* division inside the solid field */
  --field-hover:  #26221c;   /* the field, lifted under the pointer */
  --knockout:     #fff;      /* type reversed out of a field */
  --field-type:   #a8a49a;   /* secondary type on the field */
  --wash:         rgba(255, 255, 255, .28);  /* alternating row */

  --rule:         1px solid var(--ink);
  --rule-hair:    1px solid #a09d92;
  --rule-heavy:   3px solid var(--ink);

  --gut:          clamp(16px, 3.4vw, 40px);
  --measure:      68ch;

  --step--1:      clamp(11px, 0.72rem, 12px);
  --step-0:       clamp(13px, 0.86rem, 14px);
  --step-1:       clamp(15px, 1rem, 16px);
  --step-2:       clamp(19px, 1.5vw, 23px);
  --step-3:       clamp(30px, 4.6vw, 58px);
  --step-4:       clamp(38px, 6.6vw, 76px);
}

/* ------------------------------------------------------------- scaffold -- */

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

html {
  background: var(--stock);
  scrollbar-color: var(--ink) var(--stock-deep);
}

body {
  margin: 0;
  background: var(--stock);
  color: var(--ink);
  font-family: 'Archivo', system-ui, sans-serif;
  font-size: var(--step-1);
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
  -webkit-text-size-adjust: 100%;
}

/* the newsprint tooth: one fixed screen, never repainted on scroll */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .5;
  background-image:
    radial-gradient(circle at 1px 1px, #8a877c 0.5px, transparent 0.5px),
    radial-gradient(circle at 3px 4px, #afaca1 0.5px, transparent 0.5px);
  background-size: 5px 5px, 7px 7px;
}
body > * { position: relative; z-index: 1; }

::selection { background: var(--ink); color: var(--stock); }
a { color: inherit; }

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}
/* an ink ring is invisible on the ink field, so it reverses there too */
.rail :focus-visible { outline-color: var(--stock); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--stock);
  padding: 10px 14px; z-index: 40;
  font: 700 var(--step-0)/1 'Archivo', sans-serif;
  text-transform: uppercase; letter-spacing: .08em;
}
.skip:focus { left: 0; }

/* ------------------------------------------------------------- masthead -- */

.masthead {
  border-bottom: var(--rule-heavy);
  padding: 12px var(--gut) 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "title lang"
    "facts facts";
  column-gap: var(--gut);
  align-items: end;
}

.masthead__title {
  grid-area: title;
  margin: 0;
  font-size: var(--step-4);
  font-weight: 900;
  font-stretch: 78%;
  line-height: .92;
  letter-spacing: -.045em;
  text-transform: uppercase;
}

/* Misregistration needs a second ink to slip against. This catalog prints in
   one, so the title carries its weight instead of a ghost. */
.masthead__title { color: var(--ink); }

.masthead__facts {
  grid-area: facts;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 7px 0 0;
  border-top: var(--rule-hair);
  padding: 5px 0 6px;
}
.masthead__facts > div {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding-right: 22px;
  margin-right: 22px;
  border-right: var(--rule-hair);
}
.masthead__facts > div:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.masthead__facts dt {
  font-family: 'Courier Prime', monospace;
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--ink-faint);
}
.masthead__facts dd {
  margin: 0;
  font-weight: 700;
  font-size: var(--step-0);
  font-stretch: 88%;
  text-transform: uppercase;
  letter-spacing: .02em;
}

.masthead__lang { grid-area: lang; padding-bottom: 4px; }
.masthead__lang ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; border: var(--rule);
}
.masthead__lang li + li { border-left: var(--rule); }
.masthead__lang button {
  appearance: none; border: 0; background: transparent;
  color: var(--ink); cursor: pointer;
  font: 700 var(--step--1)/1 'Courier Prime', monospace;
  letter-spacing: .1em; text-transform: uppercase;
  padding: 7px 9px;
}
.masthead__lang button[aria-current="true"] { background: var(--ink); color: var(--stock); }
.masthead__lang button:hover:not([aria-current="true"]):not(:disabled) { background: var(--stock-deep); }
.masthead__lang button:disabled {
  color: var(--ink-faint);
  cursor: not-allowed;
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

/* ---------------------------------------------------------------- sheet -- */

.sheet {
  display: grid;
  grid-template-columns: 216px minmax(0, 1fr);
  align-items: start;
}
.sheet > * { min-width: 0; }

/* --------------------------------------------------- department rail ----- */

.rail {
  position: sticky;
  top: 0;
  align-self: start;
  background: var(--field);
  color: var(--knockout);
  border-right: var(--rule-heavy);
  padding: 18px 0 20px;
  min-height: 100vh;
}

.rail__title {
  margin: 0 16px 12px;
  font: 700 var(--step--1)/1.2 'Courier Prime', monospace;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--field-type);
}

.rail__list { list-style: none; margin: 0; padding: 0; }

.rail__btn {
  appearance: none;
  width: 100%;
  border: 0;
  border-top: 1px solid var(--field-rule);
  background: transparent;
  color: var(--knockout);
  cursor: pointer;
  display: grid;
  grid-template-columns: 3.6em 1fr auto;
  align-items: baseline;
  gap: 8px;
  padding: 11px 16px;
  text-align: left;
  font-family: inherit;
}
.rail__list li:last-child .rail__btn { border-bottom: 1px solid var(--field-rule); }

.rail__code {
  font: 700 var(--step--1)/1 'Courier Prime', monospace;
  letter-spacing: .06em;
  color: var(--field-type);
}
.rail__name {
  font-size: var(--step-0);
  font-weight: 600;
  font-stretch: 90%;
  line-height: 1.2;
}
.rail__tally {
  font: 400 var(--step--1)/1 'Courier Prime', monospace;
  color: var(--field-type);
}

.rail__btn:hover { background: var(--field-hover); }
.rail__btn[aria-pressed="true"] { background: var(--stock); color: var(--ink); }
.rail__btn[aria-pressed="true"] .rail__code,
.rail__btn[aria-pressed="true"] .rail__tally { color: var(--ink-faint); }

.rail__legend {
  margin: 18px 16px 0;
  padding-top: 12px;
  border-top: 1px solid var(--field-rule);
  font: 400 var(--step--1)/1.5 'Archivo', sans-serif;
  color: var(--field-type);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  align-items: start;
}
.stamp--legend { width: 34px; margin-left: 0; }

/* -------------------------------------------------------------- listing -- */

.listing { padding: 0 0 0 0; min-width: 0; }

.listing__count {
  margin: 0;
  padding: 7px var(--gut);
  border-bottom: var(--rule-hair);
  font: 400 var(--step--1)/1 'Courier Prime', monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.listing__empty {
  margin: 0;
  padding: 40px var(--gut);
  font-size: var(--step-2);
  font-stretch: 88%;
}

/* ------------------------------------------------------------ part row -- */

.part {
  display: grid;
  grid-template-columns: 156px minmax(0, 1fr) 208px;
  column-gap: clamp(14px, 2vw, 26px);
  padding: 9px var(--gut) 11px;
  border-bottom: var(--rule-hair);
  scroll-margin-top: 8px;
}
.part.is-alt { background: var(--wash); }
/* display: grid above beats the UA default for [hidden], so the filter needs
   this to actually remove a row rather than merely mark it. */
.part[hidden] { display: none; }
.part.is-target { outline: 2px solid var(--ink); outline-offset: -2px; }

/* --- plate --- */

.part__plate {
  margin: 0;
  grid-column: 1;
  border: var(--rule);
  background: var(--stock-pale);
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.part__plate img {
  display: block;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: url(#plate-ink);
}
/* the halftone screen sits over the plate and lifts once, on entry */
.part__plate::after {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, rgba(18,16,14,.85) 1.05px, transparent 1.15px);
  background-size: 3px 3px;
  opacity: .5;
  transition: opacity 1.05s cubic-bezier(.16, 1, .3, 1);
}
.part.is-inked .part__plate::after { opacity: .2; }

.part__plate--none {
  display: grid;
  place-items: center;
  background: var(--stock-deep);
}
/* a halftone screens a photograph; there is none here to screen */
.part__plate--none::after { content: none; }
.part__nofigure {
  font: 700 var(--step--1)/1.3 'Courier Prime', monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  text-align: center;
  padding: 0 10px;
}

/* --- body --- */

.part__body { grid-column: 2; min-width: 0; }

.part__stock {
  font: 700 var(--step-0)/1 'Courier Prime', monospace;
  letter-spacing: .08em;
  color: var(--ink);
}
.part__stock a { text-decoration: none; }
.part__stock a:hover { text-decoration: underline; text-underline-offset: 3px; }

.part__name {
  margin: 3px 0 0;
  font-size: var(--step-2);
  font-weight: 900;
  font-stretch: 84%;
  line-height: 1.04;
  letter-spacing: -.02em;
}

.part__tagline {
  margin: 4px 0 0;
  max-width: 64ch;
  font-size: var(--step-0);
  color: var(--ink-soft);
}

.part__spec {
  margin: 7px 0 0;
  border-top: var(--rule-hair);
  display: grid;
  grid-template-columns: 5.4em minmax(0, 1fr);
}
.part__spec dt {
  padding: 2px 10px 2px 0;
  border-bottom: var(--rule-hair);
  font: 400 var(--step--1)/1.4 'Courier Prime', monospace;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-faint);
}
.part__spec dd {
  margin: 0;
  padding: 2px 0;
  border-bottom: var(--rule-hair);
  font-size: var(--step-0);
  min-width: 0;
}
.part__spec dd.is-prose { max-width: min(var(--measure), 100%); }

.part__topics { display: flex; flex-wrap: wrap; gap: 4px 10px; }
.part__topics span { white-space: nowrap; }
.part__topics span::after { content: " ·"; color: var(--ink-faint); }
.part__topics span:last-child::after { content: ""; }

.part__more {
  margin-top: 4px;
  font-size: var(--step-0);
}
.part__more summary {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font: 700 var(--step--1)/1 'Courier Prime', monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink);
  list-style: none;
  padding: 2px 0;
}
.part__more summary::-webkit-details-marker { display: none; }
.part__more summary .chev { transition: transform .18s ease-out; }
.part__more[open] summary .chev { transform: rotate(90deg); }
.part__more p {
  margin: 8px 0 0;
  max-width: min(var(--measure), 100%);
  font-size: var(--step-0);
  line-height: 1.55;
}

/* --- order column --- */

.part__order { grid-column: 3; }

.part__links { list-style: none; margin: 10px 0 0; padding: 0; }
.part__links li + li { margin-top: 4px; }
.part__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border: var(--rule);
  background: var(--stock-pale);
  padding: 6px 9px;
  text-decoration: none;
  font: 700 var(--step--1)/1.15 'Archivo', sans-serif;
  font-stretch: 88%;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.part__links a:hover { background: var(--ink); color: var(--stock); }
.part__links a:hover .arrow { stroke: var(--stock); }
.part__links .arrow { stroke: var(--ink); flex: none; }

.part__norepo {
  margin: 10px 0 0;
  font: 400 var(--step--1)/1.5 'Courier Prime', monospace;
  color: var(--ink-faint);
}

/* --- availability stamp --- */

.stamp {
  display: inline-block;
  border: 2px solid var(--red);
  color: var(--red-text);
  background: transparent;
  padding: 4px 8px;
  font: 700 var(--step--1)/1.1 'Archivo', sans-serif;
  font-stretch: 88%;
  letter-spacing: .12em;
  text-transform: uppercase;
  transform: rotate(-2.2deg);
}
.stamp--ok {
  border-color: var(--ink);
  color: var(--stock);
  background: var(--ink);
  transform: none;
  letter-spacing: .1em;
}
.stamp--caveat { margin-left: 7px; }
.part__order .stamp + .stamp { margin-top: 0; }

/* ------------------------------------------------------------- colophon -- */

.colophon {
  border-top: var(--rule-heavy);
  padding: 18px var(--gut) 44px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 28px;
  font: 400 var(--step--1)/1.6 'Courier Prime', monospace;
  color: var(--ink-soft);
}
.colophon__line { margin: 0; }
.colophon a { text-underline-offset: 3px; }
.colophon__set { color: var(--ink-faint); }

/* ------------------------------------------------------------ boot/fail -- */

.boot {
  margin: 12vh auto;
  max-width: 44ch;
  border: var(--rule-heavy);
  background: var(--stock-pale);
  padding: 28px;
}
.boot__msg { margin: 0; font-size: var(--step-1); }

/* ---------------------------------------------------------- responsive -- */

@media (max-width: 1180px) {
  .part { grid-template-columns: 168px minmax(0, 1fr) 168px; }
}

@media (max-width: 960px) {
  .sheet { grid-template-columns: 1fr; }

  .rail {
    position: static;
    min-height: 0;
    border-right: 0;
    border-bottom: var(--rule-heavy);
    padding: 14px 0 16px;
  }
  .rail__title { margin-left: var(--gut); margin-right: var(--gut); }
  .rail__list {
    display: flex;
    overflow-x: auto;
    gap: 0;
    padding: 0 var(--gut);
    scrollbar-width: thin;
  }
  .rail__list li { flex: none; }
  .rail__btn {
    width: auto;
    border-top: 0;
    border-left: 1px solid var(--field-rule);
    grid-template-columns: auto;
    gap: 3px;
    padding: 9px 13px;
  }
  .rail__list li:last-child .rail__btn { border-bottom: 0; border-right: 1px solid var(--field-rule); }
  .rail__name { white-space: nowrap; }
  .rail__legend { margin-top: 14px; }

  .part {
    grid-template-columns: 148px minmax(0, 1fr);
    column-gap: 16px;
  }
  .part__order {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 10px 16px;
    margin-top: 14px;
  }
  .part__links { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; }
  .part__links li + li { margin-top: 0; }
  .part__norepo { margin: 0; }
}

@media (max-width: 620px) {
  .masthead {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "title"
      "lang"
      "facts";
    align-items: start;
  }
  .masthead__lang { padding: 10px 0 0; justify-self: start; }
  /* the dividers stop earning their keep once the facts stack */
  .masthead__facts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2px 14px;
  }
  .masthead__facts > div {
    padding-right: 0;
    margin-right: 0;
    border-right: 0;
  }

  .part {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 10px;
  }
  .part__plate,
  .part__body,
  .part__order { grid-column: 1; }
  .part__plate { max-width: 340px; }
  .part__spec { grid-template-columns: 5.6em minmax(0, 1fr); }
  .part__order { margin-top: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  .part__plate::after { transition: none; }
  .part__more summary .chev { transition: none; }
}

@media print {
  body::before, .rail, .skip, .masthead__lang { display: none; }
  /* a plate that never scrolled into view must still print screened */
  .part__plate::after { opacity: .2; }
  .sheet { grid-template-columns: 1fr; }
  .part { break-inside: avoid; }
}

/* ------------------------------------------------------------ the note -- */
/* The caveat is the point of the catalog, so it prints in the red ink and
   is named "Note" in words, never carried by color alone. */

.part__note {
  color: var(--red-text);
  padding: 3px 0;
  font-size: var(--step-0);
  line-height: 1.5;
}
.part__spec dt.is-note { color: var(--red-text); }

/* the press plate filter carrier: present, never laid out */
.press { position: absolute; width: 0; height: 0; overflow: hidden; }

/* ------------------------------------------------------- sheet marks -- */
/* A catalog tells you it continues. The running head is also the one
   recurring field event below the fold, so the printed field does not stop
   at the rail. */

.sheetmark {
  display: flex;
  align-items: baseline;
  gap: 14px;
  background: var(--field);
  color: var(--knockout);
  padding: 5px var(--gut) 6px;
  font: 700 var(--step--1)/1.3 'Courier Prime', monospace;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.sheetmark__no { color: var(--field-type); }
.sheetmark__cont {
  margin-left: auto;
  color: var(--field-type);
  letter-spacing: .1em;
}

/* --------------------------------------------------------- leaders -- */
/* Dot leaders are what a spec block does on paper. */

.part__spec dt {
  display: flex;
  align-items: baseline;
  gap: 5px;
}
.part__spec dt::after {
  content: "";
  flex: 1 1 auto;
  border-bottom: 1px dotted var(--ink-faint);
  transform: translateY(-.28em);
  opacity: .7;
}

@media (max-width: 620px) {
  .sheetmark { padding-left: var(--gut); padding-right: var(--gut); }
  .sheetmark__cont { display: none; }
}

.part__marks { margin: 0; display: flex; flex-wrap: wrap; align-items: flex-start; gap: 7px; }