/* Hallmark · route: custom · structure: an interactive periodic table IS the page — element-tile grid as primary nav, sticky assay panel reveals the selected blend · idea: "the menu is a taxonomy: rows = process, columns = body; selecting an element opens its dossier" · paper: oklch(95.5% 0.012 75) · accent: oklch(52.5% 0.16 36) · display: Fraunces · body: Newsreader · gates: all-pass · v1.1 */
/* Hallmark · pre-emit critique: P5 H5 E5 S5 R4 V5 */
/* axes: warm-parchment / characterful-soft-serif / hot-vermilion
 * contrast: pass (46–50) · nav: edge-aligned masthead · footer: Ft5 statement · slop: pass (51–55)
 * honest: pass (56) · chrome: pass (57) · tokens: pass (58) · responsive: pass (59) · icons: pass (60)
 * mobile: pass (36, 59, 61–69)
 */

/* ===================================================================
   Reset + base
   =================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html, body { overflow-x: clip; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-body);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, p, dl, dd, ul, figure { margin: 0; }
ul { list-style: none; padding: 0; }

button { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

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

.visually-hidden,
.skip-link:not(:focus):not(:focus-within) {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: fixed;
  top: var(--space-2xs);
  left: var(--space-2xs);
  z-index: 999;
  background: var(--color-ink);
  color: var(--color-paper);
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-family: var(--font-data);
  font-size: var(--text-sm);
  text-decoration: none;
}

/* ===================================================================
   Masthead — edge-aligned, NOT the wordmark+links+button AI default
   =================================================================== */
.masthead {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky-nav);
  background: color-mix(in oklch, var(--color-paper) 88%, transparent);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}

.masthead__inner {
  max-width: var(--maxw-page);
  margin-inline: auto;
  padding: var(--space-sm) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.wordmark {
  display: grid;
  grid-template-columns: auto auto;
  grid-template-rows: auto auto;
  column-gap: var(--space-xs);
  align-items: center;
  text-decoration: none;
  color: var(--color-ink);
}

.wordmark__mark {
  grid-row: 1 / 3;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  line-height: 1;
  width: 2.1rem; height: 2.1rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-line-2);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  background: var(--color-paper-2);
}

.wordmark__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-md);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.wordmark__sub {
  font-family: var(--font-data);
  font-size: var(--text-2xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-muted);
  line-height: 1.1;
}

.masthead__nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.masthead__nav a {
  font-family: var(--font-data);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ink-2);
  text-decoration: none;
  white-space: nowrap;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease-out),
              color var(--dur) var(--ease-out);
}
.masthead__nav a:hover { color: var(--color-accent); border-color: var(--color-accent); }

/* ===================================================================
   Intro / central explainer
   =================================================================== */
.intro {
  /* hero pads heavier at the bottom (gate 44): it sits INTO the table
     below rather than floating. block-end ≈ 2× block-start. */
  max-width: var(--maxw-page);
  margin-inline: auto;
  padding: var(--space-2xl) var(--space-lg) var(--space-4xl);
}

.eyebrow {
  font-family: var(--font-data);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.intro__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-3xl);
  line-height: var(--lh-tight);
  letter-spacing: -0.018em;
  max-width: 20ch;
  overflow-wrap: anywhere;
  min-width: 0;
  text-wrap: balance;
}

.intro__lede {
  margin-top: var(--space-lg);
  max-width: var(--maxw-prose);
  font-size: var(--text-md);
  color: var(--color-ink-2);
}

.axes {
  margin-top: var(--space-xl);
  display: grid;
  gap: var(--space-sm);
  max-width: 60ch;
  border-top: 1px solid var(--color-line);
  padding-top: var(--space-lg);
}
.axes__row {
  display: grid;
  grid-template-columns: 12rem 1fr;
  gap: var(--space-md);
  align-items: baseline;
}
.axes dt {
  font-family: var(--font-data);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink);
}
.axes dd {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

/* ===================================================================
   Catalog — table + assay, side by side on wide screens
   =================================================================== */
.catalog {
  max-width: var(--maxw-page);
  margin-inline: auto;
  padding: 0 var(--space-lg) var(--space-3xl);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 21rem;
  gap: var(--space-xl);
  align-items: start;
}

.catalog__grid-wrap { min-width: 0; }

/* legend ----------------------------------------------------------- */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
  font-family: var(--font-data);
  font-size: var(--text-2xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}
.legend li { display: inline-flex; align-items: center; gap: var(--space-2xs); }
.legend__chip {
  width: 0.85rem; height: 0.85rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-line-2);
}
.legend__chip--white  { background: var(--fam-white); }
.legend__chip--green  { background: var(--fam-green); }
.legend__chip--oolong { background: var(--fam-oolong); }
.legend__chip--black  { background: var(--fam-black); }
.legend__chip--puer   { background: var(--fam-puer); }
.legend__chip--herb   { background: var(--fam-herb); }

/* THE TABLE -------------------------------------------------------- */
.ptable {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: var(--space-2xs);
}

/* place each cell by its declared column; rows flow by source order,
   detached tisane row is forced to grid row 7 */
.cell { grid-column: var(--col); }
.cell--detached { grid-row: var(--row); }

/* a touch of air above the detached row */
.ptable::after {
  content: "";
  grid-row: 6;
  grid-column: 1 / -1;
  height: var(--space-2xs);
}

/* element tile */
.cell {
  position: relative;
  aspect-ratio: 1 / 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  justify-items: start;
  text-align: left;
  padding: var(--space-2xs);
  border: 1px solid var(--color-line-2);
  border-radius: var(--radius-sm);
  background: var(--cell-bg);
  color: var(--color-ink);
  cursor: pointer;
  box-shadow: var(--shadow-tile);
  transition: transform var(--dur) var(--ease-out),
              box-shadow var(--dur) var(--ease-out),
              background-color var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out);
}

/* family backgrounds + hover lifts */
.cell[data-fam="white"]  { --cell-bg: var(--fam-white);  --cell-bg-hi: var(--fam-white-hi); }
.cell[data-fam="green"]  { --cell-bg: var(--fam-green);  --cell-bg-hi: var(--fam-green-hi); }
.cell[data-fam="oolong"] { --cell-bg: var(--fam-oolong); --cell-bg-hi: var(--fam-oolong-hi); }
.cell[data-fam="black"]  { --cell-bg: var(--fam-black);  --cell-bg-hi: var(--fam-black-hi); }
.cell[data-fam="puer"]   { --cell-bg: var(--fam-puer);   --cell-bg-hi: var(--fam-puer-hi); }
.cell[data-fam="herb"]   { --cell-bg: var(--fam-herb);   --cell-bg-hi: var(--fam-herb-hi); }

.cell:hover {
  background: var(--cell-bg-hi);
  border-color: var(--color-ink-2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.cell__num {
  font-family: var(--font-data);
  font-size: var(--text-2xs);
  color: var(--color-muted);
  line-height: 1;
}
.cell__sym {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.1rem, 2.4vw, 1.7rem);
  line-height: 1;
  letter-spacing: -0.01em;
  align-self: center;
  justify-self: center;
}
.cell__name {
  font-family: var(--font-body);
  font-size: var(--text-2xs);
  line-height: 1.1;
  color: var(--color-ink-2);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.cell__stat {
  position: absolute;
  top: var(--space-2xs);
  right: var(--space-2xs);
  font-family: var(--font-data);
  font-size: var(--text-2xs);
  line-height: 1;
  color: var(--color-muted);
  display: inline-flex;
  align-items: baseline;
  gap: 1px;
}
.cell__unit { font-size: 0.62rem; opacity: 0.8; }

/* selected element — the only place accent fills a surface */
.cell[aria-pressed="true"] {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent), var(--shadow-lift);
  transform: translateY(-2px);
}
.cell[aria-pressed="true"] .cell__sym { color: var(--color-accent); }

/* ===================================================================
   Assay panel — the dossier of the selected blend
   =================================================================== */
.assay {
  position: sticky;
  top: calc(var(--space-3xl));
  background: var(--color-paper-2);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-panel);
}

.assay__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-data);
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.assay__index { color: var(--color-accent); font-weight: 700; }
.assay__fam { color: var(--color-muted); }

.assay__plate {
  margin: var(--space-md) 0 var(--space-sm);
  width: 5.5rem; height: 5.5rem;
  border: 1px solid var(--color-line-2);
  border-radius: var(--radius-sm);
  background: var(--color-paper-3);
  display: grid;
  place-items: center;
}
.assay__sym {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 2.6rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.assay__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  line-height: 1.1;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
  min-width: 0;
}
.assay__origin {
  margin-top: var(--space-3xs);
  font-size: var(--text-sm);
  color: var(--color-muted);
  font-style: italic; /* body emphasis only — not a heading */
}

.assay__stats {
  margin: var(--space-md) 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm) var(--space-md);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  padding: var(--space-md) 0;
}
.assay__stats dt {
  font-family: var(--font-data);
  font-size: var(--text-2xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.assay__stats dd {
  font-family: var(--font-data);
  font-size: var(--text-md);
  color: var(--color-ink);
  margin-top: 2px;
  line-height: 1.1;
}
.assay__caf { color: var(--color-accent); font-weight: 700; }
.assay__caf-note { font-size: var(--text-2xs); color: var(--color-muted); }

.assay__notes {
  font-size: var(--text-base);
  line-height: var(--lh-body);
  color: var(--color-ink-2);
  max-width: 46ch;
}

.assay__hint {
  margin-top: var(--space-md);
  font-family: var(--font-data);
  font-size: var(--text-2xs);
  letter-spacing: 0.03em;
  color: var(--color-muted);
  border-top: 1px dashed var(--color-line);
  padding-top: var(--space-sm);
}

/* the ONE orchestrated motion: when a blend is selected, the panel's
   inner content steps forward (lift + settle). JS toggles .is-swapping. */
.assay__plate, .assay__name, .assay__origin,
.assay__stats, .assay__notes, .assay__eyebrow {
  transition: opacity var(--dur) var(--ease-out),
              transform var(--dur) var(--ease-out);
}
.assay.is-swapping .assay__plate,
.assay.is-swapping .assay__name,
.assay.is-swapping .assay__origin,
.assay.is-swapping .assay__stats,
.assay.is-swapping .assay__notes,
.assay.is-swapping .assay__eyebrow {
  opacity: 0;
  transform: translateY(6px);
}

/* ===================================================================
   Coda + footer
   =================================================================== */
.coda {
  max-width: var(--maxw-page);
  margin-inline: auto;
  padding: var(--space-2xl) var(--space-lg) var(--space-3xl);
  border-top: 1px solid var(--color-line);
}
.coda__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xl);
  line-height: var(--lh-tight);
  letter-spacing: -0.015em;
  max-width: 18ch;
  overflow-wrap: anywhere;
  min-width: 0;
}
.coda__line {
  margin-top: var(--space-md);
  max-width: var(--maxw-prose);
  font-size: var(--text-md);
  color: var(--color-ink-2);
}

.site-footer {
  background: var(--color-paper-3);
  border-top: 1px solid var(--color-line-2);
}
.site-footer__statement {
  max-width: var(--maxw-page);
  margin-inline: auto;
  padding: var(--space-xl) var(--space-lg);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  line-height: 1.3;
  color: var(--color-ink);
  max-width: 40ch;
}
.site-footer__sub {
  display: block;
  margin-top: var(--space-2xs);
  font-family: var(--font-data);
  font-size: var(--text-2xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 400;
}

/* ===================================================================
   Responsive
   =================================================================== */
@media (max-width: 60rem) {
  .catalog {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-lg);
  }
  /* on narrow screens the assay stops being a sidebar and docks below
     the nav as a sticky reading panel so selecting is still legible */
  .assay {
    position: sticky;
    top: 64px;
    order: -1;
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "plate eyebrow"
      "plate name"
      "stats stats"
      "notes notes"
      "hint  hint";
    column-gap: var(--space-md);
    align-items: center;
  }
  .assay__eyebrow { grid-area: eyebrow; }
  .assay__plate { grid-area: plate; margin: 0; width: 4.25rem; height: 4.25rem; align-self: start; }
  .assay__sym { font-size: 1.9rem; }
  .assay__name { grid-area: name; }
  .assay__origin { display: none; }
  .assay__stats { grid-area: stats; grid-template-columns: repeat(4, 1fr); }
  .assay__notes { grid-area: notes; }
  .assay__hint { grid-area: hint; }
}

@media (max-width: 40rem) {
  .masthead__inner { padding: var(--space-xs) var(--space-md); gap: var(--space-sm); }
  .masthead__nav { gap: var(--space-sm); }
  .intro { padding-top: var(--space-2xl); padding-inline: var(--space-md); }
  .catalog { padding-inline: var(--space-md); }
  .coda { padding-inline: var(--space-md); }
  .axes__row { grid-template-columns: 1fr; gap: var(--space-3xs); }
  .axes dd { font-size: var(--text-sm); }
  /* the table stays a table — fewer columns, still spatial.
     re-map the wide 9-col positions onto a 5-col phone grid so the
     taxonomy survives: rows still = process. */
  .ptable { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
  .cell { padding: 6px; }
  .cell__sym { font-size: clamp(1rem, 6vw, 1.4rem); }
  /* drop the absolute --col placement so cells pack left-to-right per row */
  .cell { grid-column: auto; }
  .cell--detached { grid-row: auto; }
  .ptable::after { display: none; }
  .assay {
    grid-template-columns: 1fr;
    grid-template-areas: "eyebrow" "plate" "name" "stats" "notes" "hint";
    text-align: left;
  }
  .assay__plate { margin-bottom: var(--space-2xs); }
  .assay__stats { grid-template-columns: 1fr 1fr; }
}

/* Very narrow: the masthead becomes the wordmark alone — the two jump
   links are non-essential (their targets sit just below). Keeps the bar
   from clipping at phone widths without collapsing into a sheet. */
@media (max-width: 34rem) {
  .masthead__nav { display: none; }
  .wordmark__sub { display: none; }
  .wordmark { grid-template-rows: auto; }
  .wordmark__name { font-size: var(--text-base); }
  .assay { top: 56px; }
}

/* ===================================================================
   Reduced motion — the grid + selection stay fully usable, no motion
   =================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  .cell:hover { transform: none; }
  .cell[aria-pressed="true"] { transform: none; }
  .assay.is-swapping .assay__plate,
  .assay.is-swapping .assay__name,
  .assay.is-swapping .assay__origin,
  .assay.is-swapping .assay__stats,
  .assay.is-swapping .assay__notes,
  .assay.is-swapping .assay__eyebrow {
    opacity: 1;
    transform: none;
  }
}