/* ==========================================================================
   FROSTLINE — hardy plant nursery
   Herbarium sheet, botanical ink, one hand-tint. Green is data, never brand.
   See DESIGN.md for the reference DNA behind every decision in this file.
   ========================================================================== */

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

:root {
  /* ground — herbarium paper, warm buff, never cream and never white */
  --sheet:      #ede8dc;
  --sheet-2:    #e2dccb;   /* raised band */
  --sheet-3:    #d5cdb8;   /* inset well, spec tables */
  --deep:       #16242b;   /* the one dark band — winter ground */
  --deep-2:     #1d2f37;

  /* ink */
  --ink:        #16181a;   /* 15.9:1 on sheet */
  --ink-dim:    #5a5c54;   /*  5.4:1 on sheet */
  --ink-sheet:  #ede8dc;   /* 12.4:1 on deep */
  --ink-sheet-dim: #a8b3b3;

  /* the dominant: frost. Hardiness, winter, every structural rule. */
  --frost:      #2e4e5c;   /*  6.9:1 on sheet */
  --frost-lite: #6d8c98;

  /* the one accent, reserved: this will die here. And the single CTA. */
  --madder:     #a33a22;   /*  5.1:1 on sheet */

  /* living foliage — appears ONLY inside plant data and drawn specimens */
  --leaf:       #46603a;   /*  5.5:1 on sheet */

  /* hairlines */
  --rule:       #b9b09a;
  --rule-soft:  rgba(46, 78, 92, 0.18);
  --rule-deep:  rgba(237, 232, 220, 0.16);

  /* type */
  --display: 'Spectral', 'Iowan Old Style', Georgia, serif;
  --voice:   'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --data:    'Spline Sans Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  /* measure & rhythm */
  --gut: clamp(1.25rem, 3.2vw, 2.75rem);
  --band: clamp(4.5rem, 11vh, 9rem);
  --max: 1420px;

  /* motion — "the break". One curve, one duration, everywhere. */
  --break-t: 0.7s;
  --break-e: cubic-bezier(0.16, 1, 0.3, 1);
  --spring-e: cubic-bezier(0.22, 1.2, 0.36, 1);
}

/* --- reset ---------------------------------------------------------------- */

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--sheet);
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(1.02rem, 0.42vw + 0.94rem, 1.18rem);
  line-height: 1.68;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* paper tooth — atmospheric ground, not a flat fill. Fibre grain at two
   scales so the sheet never reads as a solid colour on a wide monitor. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='f'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23f)' opacity='0.16'/%3E%3C/svg%3E"),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='520' height='520'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.014' numOctaves='2'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='520' height='520' filter='url(%23g)' opacity='0.07'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

body > * { position: relative; z-index: 1; }

img, svg { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

::selection { background: var(--frost); color: var(--sheet); }

/* --- type ----------------------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.014em;
  margin: 0;
  text-wrap: balance;
}

.t-mega {
  font-size: clamp(2.9rem, 8.4vw, 7.4rem);
  line-height: 0.96;
  letter-spacing: -0.028em;
}

.t-chapter {
  font-size: clamp(1.85rem, 4.1vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.t-sub {
  font-size: clamp(1.22rem, 1.9vw, 1.6rem);
  line-height: 1.26;
  font-weight: 500;
}

/* binomial nomenclature is italic. This is not styling, it is the rule. */
.bi { font-style: italic; }
.bi .auth { font-style: normal; color: var(--ink-dim); }

/* herbarium label block — the design unit borrowed from a Kew sheet */
.label {
  font-family: var(--data);
  font-size: 0.688rem;
  line-height: 1.5;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--frost);
  font-weight: 500;
}

.label--dim { color: var(--ink-dim); }

.eyebrow {
  font-family: var(--voice);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--frost);
  display: block;
}

.lede {
  font-size: clamp(1.14rem, 1.5vw, 1.4rem);
  line-height: 1.55;
  color: var(--ink);
  max-width: 34ch;
}

p { margin: 0 0 1.1em; max-width: 62ch; }
p:last-child { margin-bottom: 0; }

.dim { color: var(--ink-dim); }
.num { font-family: var(--data); font-variant-numeric: tabular-nums; }

/* --- shell ---------------------------------------------------------------- */

.shell {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.band { padding-block: var(--band); }
.band--tight { padding-block: clamp(2.75rem, 6vh, 4.5rem); }

.band--deep {
  background: var(--deep);
  color: var(--ink-sheet);
}
.band--deep .eyebrow,
.band--deep .label { color: var(--frost-lite); }
.band--deep .dim { color: var(--ink-sheet-dim); }
.band--deep .rule { background: var(--rule-deep); }

.band--well { background: var(--sheet-2); }

.rule {
  height: 1px;
  background: var(--rule);
  border: 0;
  margin: 0;
}

/* Oudolf drift rhythm: bands of unequal width, offset — never a 3-up row.
   Both tracks are declared on every placed child (PATTERNS.md grid rule). */
.drift {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gut);
  align-items: start;
}

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

.mast {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--sheet) 88%, transparent);
  backdrop-filter: blur(9px);
  border-bottom: 1px solid var(--rule-soft);
}

@supports not (background: color-mix(in srgb, red 50%, blue)) {
  .mast { background: var(--sheet); }
}

.mast-in {
  display: flex;
  align-items: baseline;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding-block: 0.95rem;
}

.wordmark {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.16rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
}

.wordmark i {
  font-style: normal;
  color: var(--frost);
}

.mast-nav {
  margin-left: auto;
  display: flex;
  gap: clamp(0.9rem, 2.2vw, 1.9rem);
  align-items: baseline;
  flex-wrap: wrap;
}

.mast-nav a {
  font-family: var(--voice);
  font-size: 0.735rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding-block: 0.3rem;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.mast-nav a:hover,
.mast-nav a:focus-visible { color: var(--ink); border-bottom-color: var(--frost); }
.mast-nav a[aria-current='page'] { color: var(--frost); border-bottom-color: var(--frost); }

.mast-site {
  font-family: var(--data);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
  text-transform: uppercase;
}

/* At phone width the wordmark and four nav items cannot share a line — the
   wordmark alone is ~216 px at its tracked desktop size. So the bar becomes
   two rows: identity, then navigation as a single tight strip. Left as one
   flex line it wrapped to three rows and made the masthead 300 px tall. */
@media (max-width: 760px) {
  .mast-site { display: none; }

  .mast-in {
    flex-wrap: wrap;
    row-gap: 0.15rem;
    padding-block: 0.7rem;
  }

  .wordmark { font-size: 1rem; letter-spacing: 0.2em; }

  .mast-nav {
    margin-left: 0;
    width: 100%;
    flex-wrap: nowrap;
    gap: 1rem;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .mast-nav::-webkit-scrollbar { display: none; }

  .mast-nav a {
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    white-space: nowrap;
  }
}

/* --- hero ----------------------------------------------------------------- */

.hero {
  padding-block: clamp(3rem, 9vh, 7rem) clamp(2.5rem, 7vh, 5rem);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gut);
  align-items: end;
}

.hero-claim { grid-column: 1 / span 7; grid-row: 1; }
.hero-spec  { grid-column: 9 / -1;    grid-row: 1; }

.hero-plate {
  position: absolute;
  right: clamp(-6rem, -4vw, -2rem);
  top: 50%;
  translate: 0 -50%;
  width: clamp(22rem, 38vw, 40rem);
  color: var(--frost);
  /* The label block sits over the plate, which is the herbarium convention —
     so the plate has to read as unambiguously behind it. At 0.2 its lower
     foliage competed with the mono values in .locality. */
  opacity: 0.13;
  pointer-events: none;
  z-index: 0;
}

.hero-grid { position: relative; z-index: 1; }

.hero-claim .t-mega { margin-block: 0.4em 0; }

.hero-claim .lede { margin-top: 1.5rem; }

/* the site's own record, set as a herbarium locality block */
.locality {
  display: grid;
  gap: 0.55rem;
  border-top: 1px solid var(--rule);
  padding-top: 0.9rem;
}

.locality div {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 0.75rem;
  font-family: var(--data);
  font-size: 0.72rem;
  letter-spacing: 0.055em;
}

.locality dt, .locality .k {
  text-transform: uppercase;
  color: var(--ink-dim);
  letter-spacing: 0.11em;
}

.locality .v { color: var(--frost); font-weight: 500; }

@media (max-width: 900px) {
  .hero-claim { grid-column: 1 / -1; grid-row: 1; }
  .hero-spec  { grid-column: 1 / -1; grid-row: 2; margin-top: 1.5rem; }
  /* Mobile is its own composition. The plate stays out of flow and bleeds off
     the bottom-right corner behind the locality block — a deliberate crop, the
     way a plate runs off the edge of a sheet. It must never take flow height:
     in flow it is 560 px tall and pushes the headline below the fold. */
  .hero-plate {
    right: clamp(-9rem, -14vw, -4rem);
    top: auto;
    bottom: clamp(-7rem, -12vw, -3rem);
    translate: none;
    width: min(23rem, 72vw);
    opacity: 0.15;
  }
}

/* --- the argument (two columns of real numbers) --------------------------- */

.argue-head { grid-column: 1 / span 5; grid-row: 1; }
.argue-a    { grid-column: 7 / span 3; grid-row: 1; }
.argue-b    { grid-column: 10 / span 3; grid-row: 1; }

.stat {
  border-top: 2px solid var(--frost);
  padding-top: 0.85rem;
}

.stat--bad { border-top-color: var(--madder); }

.stat .n {
  font-family: var(--data);
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  display: block;
  color: var(--frost);
}

.stat--bad .n { color: var(--madder); }

.stat p {
  font-size: 0.93rem;
  line-height: 1.5;
  margin: 0.7rem 0 0;
  color: var(--ink-dim);
  max-width: 26ch;
}

@media (max-width: 980px) {
  .argue-head { grid-column: 1 / -1; grid-row: 1; }
  .argue-a    { grid-column: 1 / span 6; grid-row: 2; }
  .argue-b    { grid-column: 7 / -1;     grid-row: 2; }
}

@media (max-width: 600px) {
  .argue-a { grid-column: 1 / -1; grid-row: 2; }
  .argue-b { grid-column: 1 / -1; grid-row: 3; }
}

/* --- the hardiness gate --------------------------------------------------- */

.gate-head    { grid-column: 1 / span 6;  grid-row: 1; }
.gate-console { grid-column: 1 / span 4;  grid-row: 2; }
.gate-out     { grid-column: 5 / -1;      grid-row: 2; }

.gate-console {
  background: var(--deep-2);
  border: 1px solid var(--rule-deep);
  padding: clamp(1.15rem, 2vw, 1.7rem);
  position: sticky;
  top: 5.2rem;
}

.ctl { margin-bottom: 1.6rem; }
.ctl:last-child { margin-bottom: 0; }

.ctl > .label {
  color: var(--frost-lite);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}

.ctl-val {
  font-family: var(--data);
  font-size: 0.92rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-sheet);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* temperature slider */
.ctl input[type='range'] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 1.5rem;
  background: transparent;
  cursor: ew-resize;
  display: block;
  margin: 0;
}

.ctl input[type='range']::-webkit-slider-runnable-track {
  height: 2px;
  background: linear-gradient(90deg, var(--madder) 0%, var(--frost-lite) 55%, var(--ink-sheet-dim) 100%);
}

.ctl input[type='range']::-moz-range-track {
  height: 2px;
  background: linear-gradient(90deg, var(--madder) 0%, var(--frost-lite) 55%, var(--ink-sheet-dim) 100%);
}

.ctl input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  margin-top: -6px;
  background: var(--ink-sheet);
  border: 0;
  border-radius: 0;
  rotate: 45deg;
  transition: scale 0.18s var(--spring-e);
}

.ctl input[type='range']::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--ink-sheet);
  border: 0;
  border-radius: 0;
  rotate: 45deg;
}

.ctl input[type='range']:hover::-webkit-slider-thumb { scale: 1.3; }
.ctl input[type='range']:focus-visible { outline: 2px solid var(--frost-lite); outline-offset: 4px; }

.ctl-scale {
  display: flex;
  justify-content: space-between;
  font-family: var(--data);
  font-size: 0.62rem;
  color: var(--ink-sheet-dim);
  letter-spacing: 0.06em;
  margin-top: 0.15rem;
}

/* segmented choices — spring on press, per motion.dev DNA */
.seg { display: flex; flex-wrap: wrap; gap: 4px; }

.seg button {
  font-family: var(--data);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-sheet-dim);
  background: transparent;
  border: 1px solid var(--rule-deep);
  padding: 0.44rem 0.62rem;
  cursor: pointer;
  flex: 1 0 auto;
  transition: color 0.18s, border-color 0.18s, background 0.18s, scale 0.22s var(--spring-e);
}

.seg button:hover { color: var(--ink-sheet); border-color: var(--frost-lite); }
.seg button:active { scale: 0.94; }
.seg button:focus-visible { outline: 2px solid var(--frost-lite); outline-offset: 2px; }

.seg button[aria-pressed='true'] {
  background: var(--ink-sheet);
  border-color: var(--ink-sheet);
  color: var(--deep);
  font-weight: 500;
}

/* same control on a paper band — the console's palette inverted, not a
   second design. Used by the catalogue sort. */
.seg--light button {
  color: var(--ink-dim);
  border-color: var(--rule);
}
.seg--light button:hover { color: var(--ink); border-color: var(--frost); }
.seg--light button:focus-visible { outline-color: var(--frost); }
.seg--light button[aria-pressed='true'] {
  background: var(--frost);
  border-color: var(--frost);
  color: var(--sheet);
}

/* the verdict headline — computed, and it changes with the console */
.gate-verdict {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1.15rem;
  margin-bottom: 1.5rem;
}

.gate-verdict .t-sub { max-width: 40ch; }

.gate-verdict .tally {
  font-family: var(--data);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-top: 0.7rem;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.tally b { font-weight: 500; }
.tally .n-thrive { color: var(--leaf); }
.tally .n-survive { color: var(--frost); }
.tally .n-fail { color: var(--madder); }

.cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gut);
}

.col > h3 {
  font-family: var(--voice);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding-bottom: 0.55rem;
  border-bottom: 2px solid currentColor;
  margin-bottom: 0.9rem;
  position: sticky;
  top: 4.4rem;
  background: var(--sheet);
}

.col--thrive > h3 { color: var(--leaf); }
.col--survive > h3 { color: var(--frost); }
.col--fail > h3 { color: var(--madder); }

.col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.7rem; }

.entry {
  border-left: 2px solid var(--rule);
  padding: 0.1rem 0 0.15rem 0.7rem;
}

.col--thrive .entry { border-left-color: var(--leaf); }
.col--survive .entry { border-left-color: var(--frost); }
.col--fail .entry { border-left-color: var(--madder); }

.entry .nm {
  font-size: 0.97rem;
  line-height: 1.3;
  display: block;
}

.entry .why {
  font-family: var(--data);
  font-size: 0.68rem;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--ink-dim);
  display: block;
  margin-top: 0.25rem;
}

.entry .h-rating {
  font-family: var(--data);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  color: var(--frost);
  border: 1px solid var(--rule-soft);
  padding: 0.05rem 0.28rem;
  margin-left: 0.3rem;
  vertical-align: 0.08em;
}

.entry[data-flagship='true'] .nm::after {
  content: 'OUR OWN';
  font-family: var(--voice);
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--madder);
  border: 1px solid var(--madder);
  padding: 0.07rem 0.26rem;
  margin-left: 0.4rem;
  vertical-align: 0.14em;
  white-space: nowrap;
}

.col-empty {
  font-family: var(--data);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
  padding-left: 0.7rem;
}

@media (max-width: 1080px) {
  .gate-head    { grid-column: 1 / -1; grid-row: 1; }
  .gate-console { grid-column: 1 / -1; grid-row: 2; position: static; }
  .gate-out     { grid-column: 1 / -1; grid-row: 3; margin-top: 2rem; }
}

@media (max-width: 720px) {
  /* one column with its own sticky heading — not a squashed three-up */
  .cols { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .col > h3 { top: 3.9rem; }
}

/* --- specimen entries (catalogue) ----------------------------------------- */

.spec-list { display: grid; gap: 0; border-top: 1px solid var(--rule); }

.spec {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr) 13rem;
  gap: var(--gut);
  align-items: start;
  padding-block: clamp(1.5rem, 3vh, 2.4rem);
  border-bottom: 1px solid var(--rule);
}

.spec-plate { grid-column: 1; grid-row: 1; color: var(--leaf); }
.spec-plate svg { width: 100%; height: auto; }

.spec-body { grid-column: 2; grid-row: 1; }
.spec-data { grid-column: 3; grid-row: 1; }

.spec-body h3 { font-size: clamp(1.25rem, 2vw, 1.65rem); font-weight: 500; }
.spec-body .common {
  font-family: var(--voice);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: block;
  margin-top: 0.35rem;
}
.spec-body p { font-size: 0.97rem; line-height: 1.6; margin: 0.85rem 0 0; max-width: 54ch; }

/* dl > div > dt + dd — the div is the row, so the tracks live on the div */
.spec-data dl {
  margin: 0;
  display: grid;
  gap: 0.34rem;
  font-family: var(--data);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

.spec-data dl > div {
  display: grid;
  grid-template-columns: 5.6rem minmax(0, 1fr);
  gap: 0.8rem;
  align-items: baseline;
}

.spec-data dt {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
  font-size: 0.64rem;
  padding-top: 0.1em;
}

.spec-data dd { margin: 0; color: var(--ink); font-weight: 500; }
.spec-data dd .h-rating { margin-left: 0; }

@media (max-width: 900px) {
  /* label block under the drawing, data as its own row — not a squeezed grid */
  .spec { grid-template-columns: 5rem minmax(0, 1fr); }
  .spec-plate { grid-column: 1; grid-row: 1; }
  .spec-body  { grid-column: 2; grid-row: 1; }
  .spec-data  { grid-column: 1 / -1; grid-row: 2; margin-top: 1.1rem; }
  .spec-data dl {
    grid-template-columns: repeat(auto-fit, minmax(7.5rem, 1fr));
    gap: 0.85rem;
  }
  /* stacked label-over-value, so nothing is squeezed into a 5.6rem gutter */
  .spec-data dl > div { grid-template-columns: minmax(0, 1fr); gap: 0.2rem; }
}

/* --- lifting calendar ----------------------------------------------------- */

.cal {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--data);
  font-size: 0.72rem;
}

.cal caption {
  text-align: left;
  font-family: var(--voice);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--frost);
  padding-bottom: 0.8rem;
}

.cal th, .cal td {
  border-bottom: 1px solid var(--rule);
  padding: 0.5rem 0.4rem;
  text-align: center;
  letter-spacing: 0.04em;
}

.cal th:first-child, .cal td:first-child {
  text-align: left;
  font-family: var(--display);
  font-size: 0.9rem;
  letter-spacing: 0;
  min-width: 11rem;
}

.cal thead th {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-dim);
  border-bottom-width: 2px;
  border-bottom-color: var(--frost);
}

.cal td.on { background: var(--frost); color: var(--sheet); }
.cal td.on::after { content: '\2022'; }
.cal-wrap { overflow-x: auto; }

/* --- forms (no backend, no payment — composes a sheet) -------------------- */

.form-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gut);
}

.form-main { grid-column: 1 / span 7; grid-row: 1; }
.form-aside { grid-column: 9 / -1;    grid-row: 1; }
.form-note  { grid-column: 1 / span 7; grid-row: 2; }

.field { margin-bottom: 1.15rem; }

.field label {
  font-family: var(--data);
  font-size: 0.66rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: block;
  margin-bottom: 0.4rem;
}

.field input, .field textarea, .field select {
  width: 100%;
  font-family: var(--display);
  font-size: 1rem;
  color: var(--ink);
  background: var(--sheet);
  border: 1px solid var(--rule);
  padding: 0.62rem 0.7rem;
  transition: border-color 0.18s, background 0.18s;
}

.field textarea { min-height: 7.5rem; resize: vertical; line-height: 1.55; }

.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--frost);
  background: #f4f0e7;
}

.field input:user-invalid, .field textarea:user-invalid {
  border-color: var(--madder);
}

.field .err {
  font-family: var(--data);
  font-size: 0.66rem;
  color: var(--madder);
  letter-spacing: 0.05em;
  margin-top: 0.3rem;
  display: block;
}

.btn {
  font-family: var(--voice);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--sheet);
  background: var(--madder);
  border: 1px solid var(--madder);
  padding: 0.85rem 1.5rem;
  cursor: pointer;
  display: inline-block;
  transition: background 0.2s, color 0.2s, scale 0.22s var(--spring-e);
}

.btn:hover { background: var(--ink); border-color: var(--ink); }
.btn:active { scale: 0.97; }
.btn:focus-visible { outline: 2px solid var(--frost); outline-offset: 3px; }

.btn--quiet {
  background: transparent;
  color: var(--frost);
  border-color: var(--frost);
}
.btn--quiet:hover { background: var(--frost); color: var(--sheet); }

/* stock picker — checkbox, name, quantity. No item is explicitly placed, so
   auto-placement is safe here (PATTERNS.md grid rule). */
.pick {
  display: grid;
  grid-template-columns: 1.1rem minmax(0, 1fr) 4.2rem;
  gap: 0.85rem;
  align-items: center;
  padding-block: 0.6rem;
  border-bottom: 1px solid var(--rule);
}

.pick:first-child { border-top: 1px solid var(--rule); }

.pick input[type='checkbox'] {
  width: 1.1rem;
  height: 1.1rem;
  margin: 0;
  accent-color: var(--frost);
  cursor: pointer;
}

.pick label { cursor: pointer; display: block; }

.pick label .bi { font-size: 0.99rem; }

.pick-meta {
  display: block;
  font-family: var(--data);
  font-size: 0.66rem;
  letter-spacing: 0.05em;
  color: var(--ink-dim);
  margin-top: 0.12rem;
}

.pick input[type='number'] {
  width: 100%;
  font-family: var(--data);
  font-size: 0.85rem;
  text-align: center;
  color: var(--ink);
  background: var(--sheet);
  border: 1px solid var(--rule);
  padding: 0.3rem 0.2rem;
}

.pick input[type='number']:focus { outline: none; border-color: var(--frost); }

.pick:has(input[type='checkbox']:checked) { background: var(--sheet-2); }
.pick:has(input[type='checkbox']:checked) label .bi { font-weight: 500; }

.sheet-out {
  font-family: var(--data);
  font-size: 0.74rem;
  line-height: 1.65;
  white-space: pre-wrap;
  background: var(--sheet-3);
  border: 1px solid var(--rule);
  padding: 1rem;
  margin: 0;
  max-height: 22rem;
  overflow-y: auto;
}

@media (max-width: 900px) {
  .form-main  { grid-column: 1 / -1; grid-row: 1; }
  .form-aside { grid-column: 1 / -1; grid-row: 2; }
  .form-note  { grid-column: 1 / -1; grid-row: 3; }
}

/* --- links in prose ------------------------------------------------------- */

.tx-link {
  border-bottom: 1px solid var(--frost);
  color: var(--frost);
  transition: background 0.18s, color 0.18s;
}
.tx-link:hover { background: var(--frost); color: var(--sheet); }

/* --- footer --------------------------------------------------------------- */

.foot {
  background: var(--deep);
  color: var(--ink-sheet);
  padding-block: clamp(3rem, 7vh, 5rem) 2rem;
}

.foot-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gut);
}

.foot-a { grid-column: 1 / span 5; grid-row: 1; }
.foot-b { grid-column: 7 / span 3; grid-row: 1; }
.foot-c { grid-column: 10 / -1;    grid-row: 1; }

.foot .label { color: var(--frost-lite); margin-bottom: 0.8rem; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.foot a { color: var(--ink-sheet-dim); transition: color 0.18s; }
.foot a:hover { color: var(--ink-sheet); }
.foot address { font-style: normal; color: var(--ink-sheet-dim); font-size: 0.95rem; line-height: 1.6; }

.foot-base {
  border-top: 1px solid var(--rule-deep);
  margin-top: clamp(2.5rem, 5vh, 4rem);
  padding-top: 1.2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--data);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: var(--ink-sheet-dim);
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .foot-a { grid-column: 1 / -1; grid-row: 1; }
  .foot-b { grid-column: 1 / span 6; grid-row: 2; }
  .foot-c { grid-column: 7 / -1;     grid-row: 2; }
}

/* --- motion signature: "the break" ---------------------------------------
   Nothing fades and nothing slides in from the side. A revealed element
   unfolds from its own baseline — clip-path from the bottom edge plus a
   short rise — the way a shoot breaks ground. Gated on .js-anim so the
   page is fully readable if JS never runs.
   ------------------------------------------------------------------------- */

.js-anim .brk {
  clip-path: inset(100% 0 0 0);
  translate: 0 14px;
  will-change: clip-path, translate;
}

.js-anim .brk.is-up {
  clip-path: inset(0 0 0 0);
  translate: 0 0;
  transition:
    clip-path var(--break-t) var(--break-e),
    translate var(--break-t) var(--break-e);
  transition-delay: var(--brk-d, 0s);
}

@media (prefers-reduced-motion: reduce) {
  .js-anim .brk {
    clip-path: none;
    translate: none;
    transition: none;
  }
  .ctl input[type='range']::-webkit-slider-thumb,
  .seg button,
  .btn { transition: none; }
}

/* scroll-linked, not fire-once: the frost rail reads the section's own
   progress through the viewport (motion.dev DNA, hand-rolled). */
.rail {
  position: fixed;
  left: 0;
  top: 0;
  width: 2px;
  height: 100vh;
  z-index: 50;
  background: var(--rule-soft);
  pointer-events: none;
}

.rail i {
  display: block;
  width: 100%;
  height: 0;
  background: linear-gradient(180deg, var(--frost) 0%, var(--madder) 100%);
  transform-origin: top;
}

@media (max-width: 900px) { .rail { display: none; } }

/* --- utility -------------------------------------------------------------- */

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--frost);
  color: var(--sheet);
  padding: 0.7rem 1.1rem;
  font-family: var(--voice);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  z-index: 100;
}
.skip:focus { left: 0; }

.vh {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}