/* Leucent — shared styles */

:root {
  --void: #0a0b0b;
  --graphite: #16191a;
  --line: rgba(236, 233, 226, 0.12);
  --line-strong: rgba(236, 233, 226, 0.24);
  --bone: #ece9e2;
  --dim: #8a8f8c;
  --signal: #ff6b2c;
  --signal-soft: rgba(255, 107, 44, 0.14);

  --f-display: "Instrument Serif", "Times New Roman", serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --f-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --gutter: clamp(16px, 4vw, 56px);
  --maxw: 1320px;
  --hud-h: 56px;
}

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

html { -webkit-text-size-adjust: 100%; overflow-x: clip; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  margin: 0;
  background: var(--void);
  color: var(--bone);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
::selection { background: var(--signal); color: var(--void); }

:focus-visible { outline: 1px solid var(--signal); outline-offset: 3px; }

.skip {
  position: absolute; left: -999px; top: 8px; z-index: 100;
  background: var(--signal); color: var(--void); padding: 8px 12px;
  font-family: var(--f-mono); font-size: 12px; text-decoration: none;
}
.skip:focus { left: 8px; }

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

.mono {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.dim { color: var(--dim); }
.signal { color: var(--signal); }

.display {
  font-family: var(--f-display);
  font-weight: 400;
  text-transform: uppercase;
  line-height: 0.92;
  letter-spacing: -0.01em;
  margin: 0;
}
.display em { font-style: italic; color: var(--signal); text-transform: none; }

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

.site-head {
  position: fixed; inset: 0 0 auto 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 18px var(--gutter);
  pointer-events: none;
}
.site-head > * { pointer-events: auto; }
.site-head::before {
  content: ""; position: absolute; inset: 0 0 -24px 0; z-index: -1;
  background: linear-gradient(to bottom, rgba(10,11,11,0.85), rgba(10,11,11,0));
  pointer-events: none;
}

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--bone);
  font-family: var(--f-mono); font-size: 13px; letter-spacing: 0.32em;
}
.brand .logo { display: block; height: 36px; width: auto; color: var(--bone); }
.site-foot .brand .logo { height: 42px; }
@media (max-width: 640px) { .site-head .brand .logo { height: 30px; } }
.brand-mark {
  width: 22px; height: 22px; border: 1px solid var(--bone); border-radius: 50%;
  display: grid; place-items: center; position: relative;
}
.brand-mark::after {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--signal);
  box-shadow: 0 0 12px var(--signal);
}

.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  text-decoration: none; color: var(--dim); transition: color .2s;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--bone); }
.site-nav .cta-link {
  color: var(--void); background: var(--signal); padding: 8px 14px; border-radius: 999px;
}
.site-nav .cta-link:hover { color: var(--void); filter: brightness(1.08); }

@media (max-width: 760px) {
  .site-nav a:not(.cta-link) { display: none; }
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  text-decoration: none; border-radius: 999px; padding: 14px 22px;
  border: 1px solid var(--line-strong); color: var(--bone); background: transparent;
  cursor: pointer; transition: background .2s, color .2s, border-color .2s;
}
.btn:hover { border-color: var(--bone); }
.btn-signal { background: var(--signal); border-color: var(--signal); color: var(--void); }
.btn-signal:hover { background: #ff7d45; border-color: #ff7d45; }
.btn .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

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

.page {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding: 140px var(--gutter) 96px;
}
.page-bg {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 40% at 80% 0%, rgba(255,107,44,0.10), transparent 70%),
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 100% 88px,
    var(--void);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0,0,0,.35) 60%, rgba(0,0,0,.15));
}
.crumbs { margin-bottom: 28px; }
.crumbs a { color: var(--dim); text-decoration: none; }
.crumbs a:hover { color: var(--bone); }

.page h1 {
  font-family: var(--f-display); font-weight: 400; text-transform: uppercase;
  font-size: clamp(44px, 7vw, 84px); line-height: 0.95; margin: 0 0 24px;
}
.page .lede {
  font-size: clamp(19px, 2.2vw, 22px); line-height: 1.5; color: var(--bone);
  margin: 0 0 40px; max-width: 62ch;
}
.page .meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-bottom: 56px; color: var(--dim); }

.page h2 {
  font-family: var(--f-display); font-weight: 400; text-transform: uppercase;
  font-size: clamp(30px, 4vw, 42px); line-height: 1; margin: 72px 0 18px;
  padding-top: 24px; border-top: 1px solid var(--line);
}
.page h3 { font-size: 19px; font-weight: 600; margin: 36px 0 8px; letter-spacing: -0.005em; }
.page p, .page li { color: #cfccc4; max-width: 66ch; }
.page strong { color: var(--bone); }
.page ul, .page ol { padding-left: 1.2em; }
.page li { margin: 6px 0; }
.page a { color: var(--bone); text-decoration-color: var(--signal); text-underline-offset: 3px; }

.answer {
  border-left: 2px solid var(--signal);
  background: linear-gradient(90deg, var(--signal-soft), transparent 80%);
  padding: 18px 22px; margin: 0 0 40px;
}
.answer .mono { color: var(--signal); display: block; margin-bottom: 6px; }
.answer p { margin: 0; color: var(--bone); font-size: 18px; }

.data-table-wrap { overflow-x: auto; margin: 24px 0 8px; -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; min-width: 520px; font-size: 15px; }
.data-table caption { text-align: left; caption-side: bottom; padding-top: 10px; font-size: 13px; color: var(--dim); }
.data-table th, .data-table td { text-align: left; padding: 13px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table thead th {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--dim); font-weight: 400; border-bottom-color: var(--line-strong);
}
.data-table td.num, .data-table th.num { font-family: var(--f-mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.data-table tr.hl td { color: var(--bone); background: var(--signal-soft); }
.data-table tr.hl td:first-child { box-shadow: inset 2px 0 0 var(--signal); }

.figure { margin: 40px 0; }
.figure img { width: 100%; border: 1px solid var(--line); }
.figure figcaption { margin-top: 10px; }

.note { font-size: 14px; color: var(--dim); }

.next-reads { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 28px; }
.next-reads a {
  display: block; padding: 18px; border: 1px solid var(--line); text-decoration: none;
  transition: border-color .2s, background .2s;
}
.next-reads a:hover { border-color: var(--signal); background: var(--signal-soft); }
.next-reads .mono { display: block; color: var(--dim); margin-bottom: 6px; }
.next-reads strong { font-weight: 500; }

/* ---------- waitlist ---------- */

.waitlist { display: flex; flex-wrap: wrap; gap: 10px; max-width: 520px; }
.waitlist input {
  flex: 1 1 240px; min-width: 0;
  background: transparent; border: 1px solid var(--line-strong); color: var(--bone);
  border-radius: 999px; padding: 14px 20px; font: inherit; font-size: 15px;
}
.waitlist input::placeholder { color: var(--dim); }
.waitlist input:focus { outline: none; border-color: var(--signal); }
.waitlist-msg { margin-top: 12px; min-height: 1.4em; }

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

.site-foot {
  position: relative; z-index: 5;
  border-top: 1px solid var(--line);
  padding: 48px var(--gutter) calc(48px + var(--hud-h));
  display: grid; gap: 28px;
  grid-template-columns: 1.4fr 1fr 1fr;
  background: var(--void);
}
.site-foot p { margin: 0; color: var(--dim); font-size: 14px; max-width: 46ch; }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.site-foot a { text-decoration: none; color: var(--dim); font-size: 14px; }
.site-foot a:hover { color: var(--bone); }
.site-foot .mono { color: var(--bone); margin-bottom: 12px; display: block; }
.site-foot .fine { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid var(--line); }
@media (max-width: 760px) { .site-foot { grid-template-columns: 1fr; } }
body.article .site-foot { padding-bottom: 48px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- small screens: solid header, stacked tables ---------- */

@media (max-width: 640px) {
  body.article .site-head::before {
    inset: 0; background: rgba(10, 11, 11, .9);
    -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }
  .data-table { min-width: 0; }
  .data-table thead { display: none; }
  .data-table tr { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .data-table tr.hl { padding-left: 12px; padding-right: 12px; }
  .data-table td { display: flex; justify-content: space-between; gap: 16px; padding: 3px 0; border: 0; text-align: right; }
  .data-table td:first-child { display: block; text-align: left; font-size: 16px; color: var(--bone); padding-bottom: 6px; }
  .data-table td[data-label]:not(:first-child)::before {
    content: attr(data-label); text-align: left; flex: none;
    font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); padding-top: 3px;
  }
  .data-table td.num { white-space: normal; }
  .data-table tr.hl td:first-child { box-shadow: none; }
  .data-table tr.hl { box-shadow: inset 2px 0 0 var(--signal); }
}