/* ============================================
   BEER FROM SCRATCH
   A reference page in the Contact Sheet world, built on the long-form reading
   patterns the case study established (css/case-study.css): the section index,
   hairline rows and figures, pairs, asides, labels. Only what this page adds
   is here: the SRM strip, hairline tables, range bars, the ladder, the
   timeline, the mock label, the calculator and the explorer's controls.
   ============================================ */

/* Index jumps glide, unless the visitor asked for less motion */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

/* The sticky row keeps clear of a phone's notch */
.page-beer .cs-index { top: env(safe-area-inset-top, 0px); }

/* --- Masthead: everything the contract names lands above the fold at 900px tall --- */
.page-beer main { padding-top: clamp(32px, 5vw, 72px); }

.page-beer .cs-head h1 { max-width: 14ch; }

/* the second half of the title on its own line, at the lighter weight */
.page-beer .cs-head h1 .from {
  display: block;
  font-weight: 400;
}

.page-beer .lede {
  max-width: 37rem;
  font-size: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
  line-height: 1.4;
  text-wrap: pretty;
}

.page-beer .cs-head .lede { margin-top: clamp(20px, 3vw, 24px); }

/* --- The SRM strip: beer's own colour scale, as a picture on paper --- */
.page-beer .srm {
  max-width: 62rem;
  margin-top: 24px;
}

.srm-strip {
  display: flex;
  height: 56px;
  border-radius: 2px;
  overflow: hidden;
  outline: 1px solid var(--line);
  outline-offset: -1px;
}

.srm-strip span { flex: 1 1 0; }

.srm-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 0.875rem;
  line-height: 1.45;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}

.page-beer .stats {
  max-width: 37rem;
  margin-top: 24px;
}

/* --- Section numbers: the text refers to sections by number, so the index shows them --- */
.cs-index .num {
  margin-right: 0.5em;
  color: var(--ink-2);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}

/* --- Labels: a line that names what follows it, in the second ink --- */
.page-beer .label {
  margin-top: 0;
  color: var(--ink-2);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.3;
}

.page-beer .label + h3,
.page-beer .label + h4 { margin-top: 12px; }

/* --- Pairs: two ruled columns of prose --- */
.page-beer .pair {
  gap: 32px 40px;
  margin-top: 28px;
}

.page-beer .pair > div > :first-child { margin-top: 0; }

.page-beer .pair h3 { margin-top: 0; }

.page-beer .pair :is(p, ul) { margin-top: 12px; }

/* inside a pair too, a label stands 12px from the head it names (this must
   outrank the two rules above) */
.page-beer .pair .label + :is(h3, h4) { margin-top: 12px; }

/* Secondary sentences, one step quieter */
.page-beer .muted {
  color: var(--ink-2);
  font-size: 0.9375rem;
  line-height: 1.5;
}

/* --- Asides: a regulation quoted, a note weighted --- */
.page-beer .aside blockquote > p:first-child { margin-top: 12px; }

.page-beer .aside .spec { margin-top: 8px; }

/* --- Definition rows: a term, then its meaning at reading size --- */
.page-beer .defs {
  max-width: 50rem;
  margin-top: 20px;
}

.page-beer .defs > div {
  align-items: start;
  padding: 12px 0 14px;
}

.page-beer .defs dt { font-weight: 600; }

.page-beer .defs dd {
  color: var(--ink);
  font-size: 1.0625rem;
  line-height: 1.6;
}

.page-beer .defs .sub {
  display: block;
  color: var(--ink-2);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.45;
}

.page-beer .levels dd { font-size: 1rem; }

/* --- The ladder: a numbered rung, then its title, its figures and its why --- */
.page-beer .ladder {
  max-width: 50rem;
  margin-top: 28px;
}

.page-beer .ladder > div {
  grid-template-columns: 3rem minmax(0, 1fr);
  align-items: start;
  padding: 20px 0 24px;
}

.page-beer .ladder dd { color: var(--ink); }

.page-beer .ladder h3 {
  margin-top: 0;
  max-width: none;
}

.page-beer .spec {
  margin-top: 6px;
  color: var(--ink-2);
  font-size: 0.875rem;
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
}

.page-beer .ladder dd > p:not(.spec) {
  margin-top: 10px;
  font-size: 1.0625rem;
  line-height: 1.6;
}

/* --- The timeline: a date, then what happened --- */
.page-beer .timeline {
  max-width: 50rem;
  margin-top: 28px;
}

.page-beer .timeline > div {
  grid-template-columns: 7.5rem minmax(0, 1fr);
  align-items: start;
  padding: 20px 0 24px;
}

.page-beer .timeline dt {
  padding-top: 0.15em;
  font-weight: 400;
  line-height: 1.3;
  font-variant-numeric: tabular-nums;
}

.page-beer .timeline dd { color: var(--ink); }

.page-beer .timeline h3 {
  margin-top: 0;
  max-width: none;
}

.page-beer .timeline dd p {
  margin-top: 10px;
  font-size: 1.0625rem;
  line-height: 1.6;
}

.page-beer .timeline dd p.muted {
  color: var(--ink-2);
  font-size: 0.9375rem;
  line-height: 1.5;
}

/* --- Tables: hairlines between rows, scrolling sideways in their own box --- */
.page-beer .table-scroll {
  /* a flex column rather than a block: WebKit leaves a block scroller's end
     padding out of the width it can scroll */
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-top: 20px;
  /* out to the edge of the sheet, with the gutter given back as padding, so a
     wide table's cut edge is the screen's edge, as the strip's is, and its end
     comes to rest on the column's edge */
  margin-right: calc(var(--pad) * -1);
  padding-right: var(--pad);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-beer .table-scroll > table { flex: none; width: 100%; }

.page-beer .table-scroll:focus-visible { outline-offset: -2px; }

.page-beer .data {
  width: 100%;
  /* the separate model, not collapse: a cell that sticks (the style table's
     first column on a phone) keeps its own lines only in this model */
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.9375rem;
  line-height: 1.45;
}

/* every body row starts with a hairline; the first one is the line under the
   head, whichever row the explorer shows first */
.page-beer .data th,
.page-beer .data td {
  padding: 10px 20px 12px 0;
  vertical-align: top;
  text-align: left;
  border-top: 1px solid var(--line);
}

.page-beer .data :is(th, td):last-child { padding-right: 0; }

.page-beer .data thead th {
  padding-top: 0;
  border-top: 0;
  color: var(--ink-2);
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
}

.page-beer .data tbody th { font-weight: 400; }

.page-beer .data .num {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-beer .data .sub {
  color: var(--ink-2);
  font-weight: 400;
}

/* the small tables inside a pair follow the column, not the whole page */
.page-beer .tiers { margin-top: 12px; }

/* --- The style table --- */
.page-beer .styles { min-width: 58rem; }

.page-beer .styles tbody th { min-width: 15.5rem; }

.page-beer .styles .code {
  margin-right: 0.45em;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}

.page-beer .styles .name { font-weight: 600; }

.page-beer .styles .desc {
  display: block;
  margin-top: 2px;
  color: var(--ink-2);
  font-size: 0.875rem;
}

.page-beer .styles .type { color: var(--ink-2); }

.page-beer .styles .try {
  min-width: 11rem;
  color: var(--ink-2);
}

.page-beer .styles .empty td {
  padding: 24px 0;
  color: var(--ink-2);
}

/* A range on a shared scale: a 3px segment of ink on a hairline rule */
.page-beer .bar {
  position: relative;
  display: block;
  width: 6.25rem;
  height: 3px;
  margin-top: 8px;
  background: linear-gradient(var(--line), var(--line)) center / 100% 1px no-repeat;
}

.page-beer .bar > span {
  position: absolute;
  top: 0;
  bottom: 0;
  background: var(--ink);
}

/* The SRM figure, as the colour it names */
.page-beer .swatch {
  display: inline-block;
  width: 18px;
  height: 18px;
  margin-right: 8px;
  vertical-align: -3px;
  border-radius: 2px;
  outline: 1px solid var(--line);
  outline-offset: -1px;
}

/* --- The explorer's controls: words, not boxes --- */
.page-beer .explorer { margin-top: 28px; }

.page-beer .explorer-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  align-items: end;
}

.page-beer .filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0 20px;
}

/* a filter is a name that states whether it is on, like a switch */
.page-beer .filter {
  border: 0;
  padding: 8px 0;
  background: none;
  color: var(--ink-2);
  font: inherit;
  font-size: 0.9375rem;
  cursor: pointer;
}

.page-beer .filter:hover,
.page-beer .filter:focus-visible { color: var(--ink); }

.page-beer .filter[aria-pressed="true"] {
  color: var(--ink);
  font-weight: 600;
}

/* the one that is on keeps a solid line in ink, as the index does for the section being read */
.page-beer .filter[aria-pressed="true"] .under {
  --stroke: var(--ink);
  background-position: 0 100%, 0 100%;
  background-size: 100% 2px, 4px 2px;
}

/* A field: its name above, the value on a hairline */
.page-beer .field {
  display: grid;
  gap: 4px;
  color: var(--ink-2);
  font-size: 0.875rem;
}

.page-beer .field > span { font-weight: 600; }

.page-beer .field :is(input, select) {
  width: 100%;
  min-height: 40px;
  padding: 6px 0;
  border: 0;
  border-bottom: 1px solid var(--ink-2);
  border-radius: 0;
  background: none;
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
}

.page-beer .field :is(input, select):focus-visible { border-bottom-color: var(--ink); }

.page-beer .field input::placeholder {
  color: var(--ink-2);
  opacity: 1;
}

/* The slider: a hairline track and a square thumb of ink, not the browser's pill and circle */
.page-beer .field input[type="range"] {
  appearance: none;
  -webkit-appearance: none;
  padding: 0;
  border: 0;
  cursor: pointer;
}

.page-beer .field input[type="range"]::-webkit-slider-runnable-track {
  height: 1px;
  background: var(--line);
}

.page-beer .field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  margin-top: -6.5px;
  border: 0;
  border-radius: 0;
  background: var(--ink);
}

.page-beer .field input[type="range"]::-moz-range-track {
  height: 1px;
  background: var(--line);
}

.page-beer .field input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 0;
  border-radius: 0;
  background: var(--ink);
}

.page-beer .search { flex: 1 1 14rem; }

.page-beer .sort { flex: 0 1 11rem; }

.page-beer .count {
  margin-top: 12px;
  color: var(--ink-2);
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
}

.page-beer .caption {
  max-width: 37rem;
  margin-top: 12px;
  color: var(--ink-2);
  font-size: 0.875rem;
  line-height: 1.45;
}

/* --- The mock label and its notes --- */
.page-beer .india {
  display: grid;
  gap: 32px;
  margin-top: 28px;
}

.page-beer .mock {
  max-width: 18rem;
  margin-top: 0;
}

/* The label is a picture of a printed object, so it keeps a printed object's
   parts: a dark band, a boxed warning, small print */
.lm {
  border: 1px solid var(--line);
  border-radius: 2px;
  /* printed colours, the same in both themes, as the SRM strip keeps its own:
     a label does not change with the lights */
  background: #f4f5f5;
  color: #141414;
  font-variant-numeric: tabular-nums;
}

.lm-band {
  display: grid;
  gap: 8px;
  justify-items: center;
  padding: 22px 16px;
  background: #111212;
  color: #e9eaea;
  text-align: center;
}

.lm-band .edge { color: #9a9d9f; }

.lm-name {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.page-beer .lm-warn {
  max-width: none;
  margin: 14px 14px 0;
  padding: 8px 10px;
  border: 2px solid #141414;
  font-size: 0.6875rem;
  font-weight: 600;
  font-stretch: 75%;
  letter-spacing: 0.06em;
  line-height: 1.5;
  text-align: center;
  text-transform: uppercase;
}

.page-beer .lm-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 12px 14px 0;
  font-size: 0.875rem;
  line-height: 1.45;
}

.page-beer .lm-line {
  margin: 4px 14px 14px;
  color: #55585a;
  font-size: 0.875rem;
  line-height: 1.45;
}

.page-beer .mock figcaption { text-align: center; }

.page-beer .notes {
  max-width: 37rem;
  margin-top: 0;
}

.page-beer .notes li + li { margin-top: 12px; }

/* --- The calculator --- */
.page-beer .calc {
  max-width: 37rem;
  margin-top: 24px;
}

.page-beer .calc-in {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 16px 24px;
}

.page-beer .calc-in .range { grid-column: 1 / -1; }

.page-beer .calc .caption { margin-top: 16px; }

/* --- The ledger --- */
.page-beer .ledger ul { margin-top: 12px; }

/* --- Sources, inside the ledger --- */
.page-beer ul.sources { margin-top: 16px; }

.page-beer ul.sources li {
  color: var(--ink-2);
  font-size: 0.9375rem;
  line-height: 1.55;
}

.page-beer .closing { margin-top: 28px; }

/* --- Below 48em: the style table slides under its first column, so a style's
   name stays in view while its figures pass by --- */
@media (max-width: 47.99em) {
  .page-beer .styles thead th:first-child,
  .page-beer .styles tbody th {
    position: sticky;
    left: 0;
    z-index: 1;
    width: 10.5rem;
    min-width: 10.5rem;
    padding-right: 16px;
    background: var(--paper);
    /* a hairline where the sliding columns pass under */
    border-right: 1px solid var(--line);
  }

  .page-beer .styles thead th:first-child + th,
  .page-beer .styles tbody th + td { padding-left: 16px; }
}

/* --- From 40em --- */
@media (min-width: 40em) {
  .page-beer .timeline > div { grid-template-columns: 9rem minmax(0, 1fr); }
}

/* --- From 64em: the label and its notes stand side by side --- */
@media (min-width: 64em) {
  .page-beer .cs-index { top: calc(32px + env(safe-area-inset-top, 0px)); }

  .page-beer .india {
    grid-template-columns: minmax(0, 18rem) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
}

/* --- From 84em the case study puts its facts beside its title; this page has none --- */
@media (min-width: 84em) {
  .page-beer .cs-head {
    display: block;
    max-width: calc(62rem + var(--pad));
  }
}