/* ===========================================================
   Distillation Technologies — site stylesheet
   Chart series colours are validated for both themes.
   Do NOT re-tint --s-student / --s-teacher per theme.
   =========================================================== */

:root {
  --ground: #FAFAFA;
  --surface: #FFFFFF;
  --surface-2: #F3F4F6;
  --line: #E1E5E8;
  --hair: #ECEEF1;
  --text: #0E1216;
  --muted: #565F68;
  --dim: #8A939B;
  --brand: #2050C0;
  --on-brand: #FFFFFF;

  --s-student: #2D6BE4;
  --s-teacher: #C2703D;
  --chart-grid: #E1E5E8;
  --st-good: #3D6B55;
  --st-warn: #B0740E;

  --sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --serif: Charter, "Bitstream Charter", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, "SF Mono", Menlo, monospace;

  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --maxw: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0B0C0E; --surface: #121417; --surface-2: #171A1E;
    --line: #23272C; --hair: #1A1E22; --text: #E8EBEE;
    --muted: #99A2AA; --dim: #6B747C; --brand: #6FA0FF; --on-brand: #0B0C0E;
    --chart-grid: #23272C; --st-good: #74A88C; --st-warn: #D9A03F;
  }
}
:root[data-theme="dark"] {
  --ground: #0B0C0E; --surface: #121417; --surface-2: #171A1E;
  --line: #23272C; --hair: #1A1E22; --text: #E8EBEE;
  --muted: #99A2AA; --dim: #6B747C; --brand: #6FA0FF; --on-brand: #0B0C0E;
  --chart-grid: #23272C; --st-good: #74A88C; --st-warn: #D9A03F;
}
:root[data-theme="light"] {
  --ground: #FAFAFA; --surface: #FFFFFF; --surface-2: #F3F4F6;
  --line: #E1E5E8; --hair: #ECEEF1; --text: #0E1216;
  --muted: #565F68; --dim: #8A939B; --brand: #2050C0; --on-brand: #FFFFFF;
  --chart-grid: #E1E5E8; --st-good: #3D6B55; --st-warn: #B0740E;
}

* { box-sizing: border-box; }

body {
  margin: 0; background: var(--ground); color: var(--text);
  font-family: var(--sans); font-size: 16.5px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 1px; }
img { max-width: 100%; height: auto; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--brand); color: var(--on-brand);
  padding: .625rem 1rem; font-size: 13.5px; text-decoration: none;
}
.skip:focus { left: .5rem; top: .5rem; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }

.lbl {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--dim); margin: 0;
}

/* ---------- header ---------- */

.hdr {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  display: flex; align-items: center; gap: 2rem; height: 62px;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
  border-bottom: 1px solid transparent;
  transition: background .35s ease, border-color .35s ease;
}
.hdr.stuck {
  background: color-mix(in srgb, var(--ground) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom-color: var(--line);
}
.hdr:not(.stuck) { color: #EDF1F4; }
.hdr:not(.stuck) .hdr-nav a { color: rgba(237,241,244,.72); }
.hdr:not(.stuck) .hdr-nav a:hover,
.hdr:not(.stuck) .hdr-nav a[aria-current] { color: #fff; }
.hdr:not(.stuck) .ghost { border-color: rgba(237,241,244,.32); color: #EDF1F4; }
.hdr:not(.stuck) .ghost:hover { border-color: #fff; }

.hdr-brand { display: flex; align-items: center; gap: .625rem; text-decoration: none; }
.hdr-mark { width: 17px; height: 17px; display: block; }
.hdr-name { font-size: 13.5px; font-weight: 600; letter-spacing: -.005em; white-space: nowrap; }
.hdr-name i { font-style: normal; opacity: .55; font-weight: 400; }

.hdr-nav { display: flex; gap: 1.75rem; margin-inline: auto; }
.hdr-nav a { font-size: 13.5px; text-decoration: none; color: var(--muted); transition: color .18s; }
.hdr-nav a:hover, .hdr-nav a[aria-current] { color: var(--text); }
@media (max-width: 1000px) { .hdr-nav { display: none; } }

.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: 13.5px; font-weight: 550; text-decoration: none;
  padding: .5625rem 1.0625rem; border-radius: 2px; border: 1px solid transparent;
  cursor: pointer; white-space: nowrap;
  transition: background .18s, border-color .18s, color .18s, transform .18s;
}
.btn:active { transform: translateY(1px); }
.solid { background: var(--brand); color: var(--on-brand); border-color: var(--brand); }
.solid:hover { filter: brightness(1.08); }
.ghost { border-color: var(--line); color: var(--text); }
.ghost:hover { border-color: var(--muted); }

.hero .solid { background: #fff; color: #0B0C0E; border-color: #fff; }
.hero .solid:hover { filter: none; background: #E4EAF0; }

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

.hero {
  position: relative; min-height: 100svh; display: flex; align-items: flex-end;
  background: #06070A; color: #EDF1F4; overflow: hidden; isolation: isolate;
}
.hero.short { min-height: 54svh; }
#graph { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; display: block; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(90% 65% at 74% 28%, rgba(45,107,228,.16), transparent 62%),
    linear-gradient(to bottom, rgba(6,7,10,.52) 0%, rgba(6,7,10,.1) 38%, rgba(6,7,10,.9) 88%, var(--ground) 100%);
  pointer-events: none;
}
.hero-in { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 7rem var(--gutter) clamp(3rem, 7vh, 5rem); }
.hero .lbl { color: rgba(237,241,244,.5); }

.crumb { font-family: var(--mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: rgba(237,241,244,.5); margin: 0; }
.crumb a { text-decoration: none; }
.crumb a:hover { color: #fff; }

.hero-title {
  font-size: clamp(2.4rem, 6.4vw, 5.15rem);
  font-weight: 620; letter-spacing: -.042em; line-height: .98;
  margin: 1.25rem 0 0; max-width: 17ch; text-wrap: balance;
}
.hero.short .hero-title { font-size: clamp(2.2rem, 5.2vw, 3.9rem); max-width: 20ch; }

.hero-sub {
  font-size: clamp(1.0625rem, 1.9vw, 1.375rem); font-weight: 400;
  line-height: 1.45; letter-spacing: -.012em;
  color: rgba(237,241,244,.8); margin: 1.5rem 0 0; max-width: 52ch;
}
.hero-sub b { font-weight: 400; color: #fff; }

.hero-cta { display: flex; flex-wrap: wrap; gap: .625rem; margin-top: 2.25rem; }

.hero-meta {
  display: grid; grid-template-columns: repeat(4, auto); justify-content: start;
  gap: .5rem 2.75rem; margin-top: 2.75rem; padding-top: 1.375rem;
  border-top: 1px solid rgba(237,241,244,.14);
}
@media (max-width: 720px) { .hero-meta { grid-template-columns: repeat(2, auto); gap: 1.125rem 2.5rem; } }
.hm-v { font-size: 1.5rem; font-weight: 620; letter-spacing: -.035em; line-height: 1; color: #fff; }
.hm-k { font-family: var(--mono); font-size: 9.5px; letter-spacing: .13em; text-transform: uppercase; color: rgba(237,241,244,.5); margin-top: .4375rem; }

/* ---------- sections ---------- */

.sec { padding-block: clamp(3.75rem, 8.5vw, 6.5rem); }
.sec + .sec { border-top: 1px solid var(--hair); }

h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.35rem); font-weight: 620;
  letter-spacing: -.032em; line-height: 1.12; margin: .875rem 0 0;
  max-width: 24ch; text-wrap: balance;
}
.sec-lede { color: var(--muted); max-width: 60ch; margin: 1rem 0 0; }

.prose { max-width: 62ch; }
.prose p { color: var(--muted); margin: 1rem 0 0; }
.prose p b { color: var(--text); font-weight: 600; }

/* ---------- stats + tables ---------- */

.dep-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  margin-top: 2.5rem; background: var(--line);
  border: 1px solid var(--line); border-radius: 3px; overflow: hidden;
}
@media (max-width: 720px) { .dep-stats { grid-template-columns: 1fr; } }
.dep-s { background: var(--surface); padding: 1.5rem 1.375rem; }
.dep-s-v { font-size: 2rem; font-weight: 620; letter-spacing: -.04em; line-height: 1; }
.dep-s-k { font-size: .875rem; color: var(--muted); margin-top: .625rem; line-height: 1.5; }

.tblbox {
  margin-top: 1.75rem; border: 1px solid var(--line);
  border-radius: 3px; overflow-x: auto; background: var(--surface);
}
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: .75rem 1rem; border-bottom: 1px solid var(--hair); font-size: 13px; }
thead th {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .13em;
  text-transform: uppercase; color: var(--dim);
  background: var(--surface-2); border-bottom-color: var(--line); white-space: nowrap;
}
tbody th { font-weight: 400; color: var(--text); }
tbody td { color: var(--muted); white-space: nowrap; }
tbody tr:hover th, tbody tr:hover td { background: var(--surface-2); }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.mono-c { font-family: var(--mono); font-size: 10.5px; letter-spacing: .06em; }
.undis { color: var(--dim); }

td.def, td.unres {
  font-family: var(--mono); font-size: 9.5px;
  letter-spacing: .13em; text-transform: uppercase; white-space: nowrap;
}
td.def { color: var(--st-good); }
td.unres { color: var(--st-warn); }

.roster table, .prog table, .matrix table { min-width: 700px; }

.rd {
  display: inline-block; height: .8125em; border-radius: 1px;
  background: currentColor; opacity: .82; vertical-align: -.03em; margin-right: .375rem;
}

.dep-note { margin-top: 1.5rem; font-size: .9375rem; color: var(--muted); max-width: 60ch; }
.dep-note b { color: var(--text); font-weight: 600; }

/* ---------- staged lists ---------- */

.steps { margin-top: 2.5rem; }
.step {
  display: grid; grid-template-columns: 96px minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2.25rem);
  padding-block: 1.625rem; border-top: 1px solid var(--hair);
}
@media (max-width: 640px) { .step { grid-template-columns: 1fr; gap: .5rem; } }
.step-n { font-family: var(--mono); font-size: 10px; letter-spacing: .14em; color: var(--brand); padding-top: .3125rem; }
.step h3 { font-size: 1.0625rem; font-weight: 620; letter-spacing: -.018em; margin: 0; }
.step p { color: var(--muted); margin: .4375rem 0 0; font-size: .9375rem; max-width: 62ch; }

.note { font-family: var(--mono); font-size: 10.5px; letter-spacing: .05em; color: var(--dim); margin-top: 1.5rem; line-height: 1.8; max-width: 66ch; }
.note a { color: var(--brand); }

/* ---------- technology entries ---------- */

.tech {
  border-top: 1px solid var(--hair); padding-block: 1.75rem;
  display: grid; grid-template-columns: 104px minmax(0, 1fr); gap: clamp(1rem, 3vw, 2.25rem);
}
@media (max-width: 680px) { .tech { grid-template-columns: 1fr; gap: .625rem; } }
.tech-id { font-family: var(--mono); font-size: 10px; letter-spacing: .14em; color: var(--brand); padding-top: .375rem; }
.tech h3 { font-size: 1.125rem; font-weight: 620; letter-spacing: -.02em; margin: 0; }
.tech .role { font-family: var(--mono); font-size: 9.5px; letter-spacing: .13em; text-transform: uppercase; color: var(--dim); margin: .3125rem 0 0; }
.spec { margin: .9375rem 0 0; display: flex; flex-direction: column; gap: .5rem; max-width: 64ch; }
.spec > div { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: .875rem; font-size: .90625rem; }
@media (max-width: 520px) { .spec > div { grid-template-columns: 1fr; gap: .125rem; } }
.spec .k { font-family: var(--mono); font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); padding-top: .3125rem; }
.spec .v { color: var(--muted); }
.spec .v b { color: var(--text); font-weight: 600; }

/* ---------- reference implementation / charts ---------- */

.refbox { margin-top: 2.5rem; border: 1px solid var(--line); border-radius: 3px; background: var(--surface); overflow: hidden; }
.ref-hd { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding: 1.125rem 1.375rem; border-bottom: 1px solid var(--hair); }
.ref-t { font-size: .9375rem; font-weight: 600; letter-spacing: -.01em; }
.ref-s { font-size: 12.5px; color: var(--dim); }
.legend { display: flex; gap: 1rem; margin-left: auto; flex-wrap: wrap; }
.lg { display: inline-flex; align-items: center; gap: .4375rem; font-size: 12px; color: var(--muted); }
.lg i { width: 10px; height: 10px; border-radius: 2px; display: block; flex: none; }
.toggle {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .13em; text-transform: uppercase;
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  padding: .375rem .625rem; border-radius: 2px; cursor: pointer;
  transition: border-color .18s, color .18s;
}
.toggle:hover { border-color: var(--muted); color: var(--text); }

.glance { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--hair); }
@media (max-width: 820px) { .glance { grid-template-columns: repeat(2, 1fr); } }
.gl { padding: 1.25rem 1.375rem; border-right: 1px solid var(--hair); }
.gl:last-child { border-right: none; }
@media (max-width: 820px) {
  .gl:nth-child(2n) { border-right: none; }
  .gl:nth-child(-n+2) { border-bottom: 1px solid var(--hair); }
}
.gl-k { font-family: var(--mono); font-size: 9.5px; letter-spacing: .15em; text-transform: uppercase; color: var(--dim); }
.gl-v { font-size: 1.4375rem; font-weight: 620; letter-spacing: -.035em; margin-top: .4375rem; line-height: 1.1; }
.gl-v.soft { color: var(--dim); font-weight: 500; }
.gl-n { font-size: .8125rem; color: var(--muted); margin-top: .1875rem; }

.ref-bd { padding: 1.5rem 1.375rem 1.75rem; position: relative; }
.radar-wrap { position: relative; max-width: 540px; margin: 0 auto; }
.radar-wrap svg { display: block; width: 100%; height: auto; overflow: visible; }
.axis-label { font-family: var(--sans); font-size: 11.5px; fill: var(--muted); }
.axis-hit { fill: transparent; cursor: pointer; }
.axis-hit:hover + .axis-ring, .axis-hit:focus-visible + .axis-ring { opacity: 1; }
.axis-ring { opacity: 0; transition: opacity .15s; }
.radar-wrap.off { display: none; }
.tblview { display: none; overflow-x: auto; }
.tblview.on { display: block; }
.tblview table { min-width: 440px; }

#bars { display: block; width: 100%; height: auto; overflow: visible; }
.bar-lbl { font-size: 12.5px; fill: var(--muted); }
.bar-val { font-size: 12.5px; fill: var(--text); font-weight: 600; }
.bar-hit { fill: transparent; cursor: pointer; }
.barview.off { display: none; }

.tip {
  position: absolute; z-index: 5; pointer-events: none;
  background: var(--surface); border: 1px solid var(--line); border-radius: 3px;
  box-shadow: 0 6px 24px rgba(0,0,0,.13); padding: .625rem .75rem;
  font-size: 12.5px; min-width: 152px; opacity: 0; transform: translateY(3px);
  transition: opacity .14s, transform .14s;
}
.tip.on { opacity: 1; transform: none; }
.tip-t { font-weight: 600; margin-bottom: .375rem; font-size: 12px; }
.tip-r { display: flex; align-items: center; gap: .4375rem; color: var(--muted); }
.tip-r i { width: 8px; height: 8px; border-radius: 2px; flex: none; }
.tip-r b { margin-left: auto; color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }

.fn { font-size: 12px; color: var(--dim); margin: 1rem 0 0; max-width: 66ch; }

/* ---------- programs ---------- */

.tiers {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  border-radius: 3px; overflow: hidden; margin-top: 2.5rem;
}
@media (max-width: 880px) { .tiers { grid-template-columns: 1fr; } }
.tier { background: var(--surface); padding: 1.75rem 1.5rem; display: flex; flex-direction: column; }
.tier-n { font-family: var(--mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--dim); }
.tier h3 { font-size: 1.3125rem; font-weight: 620; letter-spacing: -.028em; margin: .625rem 0 0; }
.tier-p { font-size: 1.5rem; font-weight: 620; letter-spacing: -.035em; margin-top: .875rem; }
.tier-p.soft { color: var(--dim); font-size: 1.125rem; }
.tier-d { font-size: .90625rem; color: var(--muted); margin: .875rem 0 0; }
.tier ul { list-style: none; margin: 1.25rem 0 0; padding: 0; display: flex; flex-direction: column; gap: .5rem; }
.tier li { font-size: .875rem; color: var(--muted); padding-left: 1rem; position: relative; }
.tier li::before { content: "\2014"; position: absolute; left: 0; color: var(--dim); }

/* ---------- newsroom / careers / definitions ---------- */

.listing { margin-top: 2.5rem; border-top: 1px solid var(--hair); }
.item {
  display: grid; grid-template-columns: 116px minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem); padding-block: 1.5rem; border-bottom: 1px solid var(--hair);
}
@media (max-width: 640px) { .item { grid-template-columns: 1fr; gap: .375rem; } }
.item-d { font-family: var(--mono); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; color: var(--dim); padding-top: .375rem; }
.item h3 { font-size: 1.0625rem; font-weight: 620; letter-spacing: -.018em; margin: 0; }
.item p { color: var(--muted); margin: .5rem 0 0; font-size: .9375rem; max-width: 64ch; }
.item .meta { font-family: var(--mono); font-size: 9.5px; letter-spacing: .13em; text-transform: uppercase; color: var(--dim); margin-top: .625rem; }

.defs { margin-top: 2.5rem; border-top: 1px solid var(--hair); }
.def-item { padding-block: 1.5rem; border-bottom: 1px solid var(--hair); }
.def-item h3 { font-size: 1.0625rem; font-weight: 620; letter-spacing: -.018em; margin: 0; }
.def-item p { color: var(--muted); margin: .5rem 0 0; font-size: .9375rem; max-width: 66ch; }

/* ---------- learning centre ---------- */

.learn { background: var(--surface-2); border-top: 1px solid var(--hair); }
.learn-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: clamp(2rem, 5vw, 4rem); }
@media (max-width: 900px) { .learn-grid { grid-template-columns: 1fr; } }
.learn h2 { font-family: var(--serif); font-weight: 600; letter-spacing: -.008em; line-height: 1.22; max-width: 20ch; }
.learn p { font-family: var(--serif); color: var(--muted); max-width: 48ch; margin: 1rem 0 0; line-height: 1.7; }

.toc { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.toc li { border-bottom: 1px solid var(--line); }
.toc a { display: flex; align-items: baseline; gap: 1rem; padding: .8125rem .25rem; text-decoration: none; transition: padding-left .2s; }
.toc a:hover { padding-left: .625rem; }
.toc-n { font-family: var(--mono); font-size: 10px; color: var(--dim); flex: none; }
.toc-t { font-family: var(--serif); font-size: 1rem; }
.toc a:hover .toc-t { color: var(--brand); }
.toc-m { margin-left: auto; font-family: var(--mono); font-size: 9.5px; color: var(--dim); flex: none; }

.track { margin-top: 3rem; }
.track:first-of-type { margin-top: 2rem; }
.track-h { font-family: var(--mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--brand); margin: 0 0 .75rem; }

/* ---------- article ---------- */

.article { max-width: 68ch; margin: 0 auto; }
.article > p, .article ul, .article ol {
  font-family: var(--serif); font-size: 1.0625rem; line-height: 1.78; color: var(--text);
}
.article > p { margin: 1.375rem 0 0; }
.article .standfirst { font-size: 1.1875rem; color: var(--muted); border-left: 2px solid var(--brand); padding-left: 1.125rem; margin-top: 0; }
.article h2 { font-family: var(--serif); font-size: 1.4375rem; font-weight: 600; letter-spacing: -.008em; margin: 2.75rem 0 0; max-width: none; }
.article h3 { font-family: var(--serif); font-size: 1.1875rem; font-weight: 600; margin: 2rem 0 0; }
.article ul, .article ol { margin: 1.25rem 0 0; padding-left: 1.375rem; display: flex; flex-direction: column; gap: .625rem; }
.article li b, .article p b { font-weight: 600; }
.article code { font-family: var(--mono); font-size: .8125em; background: var(--surface-2); padding: .125rem .3125rem; border-radius: 2px; }
.article pre {
  background: var(--surface-2); border: 1px solid var(--hair); border-radius: 3px;
  padding: 1rem 1.125rem; overflow-x: auto; margin: 1.5rem 0 0;
  font-family: var(--mono); font-size: 12.5px; line-height: 1.7; color: var(--text);
}
.article pre code { background: none; padding: 0; font-size: inherit; }
.article blockquote {
  margin: 1.75rem 0 0; padding: 1rem 1.25rem; border-left: 2px solid var(--brand);
  background: var(--surface-2); font-family: var(--serif); color: var(--muted);
}
.article blockquote p { margin: 0; }
.article hr { border: none; border-top: 1px solid var(--hair); margin: 2.75rem 0 0; }

.art-meta {
  display: flex; gap: 1.25rem; flex-wrap: wrap; margin: 0 0 2rem;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .13em;
  text-transform: uppercase; color: var(--dim);
}
.art-next {
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--hair);
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.art-next a { text-decoration: none; font-size: .9375rem; color: var(--brand); }

/* ---------- capital ---------- */

.cap-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); align-items: end; margin-top: 2.25rem; }
@media (max-width: 900px) { .cap-grid { grid-template-columns: 1fr; } }
.bv-fig { font-size: clamp(2.75rem, 7vw, 4.5rem); font-weight: 620; letter-spacing: -.048em; line-height: .95; }
.bv-p { font-size: .9375rem; color: var(--muted); margin: 1rem 0 0; max-width: 46ch; }
.bv-p b { color: var(--text); font-weight: 600; }
.bv-def { font-family: var(--mono); font-size: 10.5px; line-height: 1.9; letter-spacing: .04em; color: var(--dim); border-left: 1px solid var(--line); padding-left: 1rem; max-width: 42ch; }
.bv-motto { font-family: var(--mono); font-size: 9.5px; letter-spacing: .26em; text-transform: uppercase; color: var(--dim); opacity: .5; margin-top: 3.5rem; }
.bv-letter {
  margin-top: 2.5rem; border-left: 2px solid var(--line); padding-left: 1.5rem;
  font-family: var(--serif); font-size: 1.0625rem; line-height: 1.75; color: var(--muted); max-width: 58ch;
}
.bv-letter p { margin: 0 0 1rem; }
.bv-sig { font-family: var(--mono); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; color: var(--dim); }

/* ---------- close ---------- */

.close h2 { font-size: clamp(1.9rem, 4.6vw, 3rem); max-width: 20ch; }
.close .hero-cta { margin-top: 2rem; }

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

.foot { border-top: 1px solid var(--hair); padding-block: 3rem 3.5rem; }
.foot-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-bottom: 2.75rem; }
@media (max-width: 760px) { .foot-cols { grid-template-columns: repeat(2, 1fr); } }
.foot h4 { font-family: var(--mono); font-size: 9.5px; letter-spacing: .15em; text-transform: uppercase; color: var(--dim); margin: 0 0 .875rem; font-weight: 400; }
.foot ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .5rem; }
.foot a { text-decoration: none; font-size: .875rem; color: var(--muted); transition: color .18s; }
.foot a:hover { color: var(--brand); }
.disc { border-top: 1px solid var(--hair); padding-top: 1.5rem; font-size: 12px; line-height: 1.8; color: var(--dim); max-width: 80ch; }
.disc b { color: var(--muted); font-weight: 600; }

/* ---------- motion ---------- */

.rise { opacity: 0; transform: translateY(12px); }
.rise.in { opacity: 1; transform: none; transition: opacity .7s cubic-bezier(.22,.61,.36,1), transform .7s cubic-bezier(.22,.61,.36,1); }
.hero .rise { transition-duration: .9s; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .rise { opacity: 1 !important; transform: none !important; }
}