/* Layout after pacingthefrontier.com, in black and white. */
:root {
  --ink: #111;
  --accent: #000;
  --accent-soft: #999;
  --hairline: #e6e6e6;
  --muted: rgb(0 0 0 / 0.55);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font: 16px/1.6 Inter, Arial, Helvetica, sans-serif;
}

a { color: var(--accent); }

h1, h2 { font-family: "Source Serif 4", Georgia, serif; }

/* Header */
header {
  text-align: center;
  padding: 4rem 1.5rem 0;
}

/* Two columns: statement left, signatories right; stacked on mobile. */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1rem;
  display: grid;
  gap: 5rem;
}
@media (min-width: 1024px) {
  main {
    grid-template-columns: minmax(0, 9.6fr) minmax(0, 5fr);
    grid-template-areas: "statement signatories";
    gap: 4.5rem;
    align-items: start;
  }
  .statement { grid-area: statement; }
  .signatories { grid-area: signatories; }
}

h2 {
  font-size: 2.25rem;
  font-weight: 400;
  line-height: 1.1;
  margin: 0 0 1.75rem 1.75rem;
}

/* Card: white sheet with a hairline inner frame and a soft shadow. */
.card {
  padding: 0.5rem;
  background: #fff;
  box-shadow: 0 2px 2px rgb(0 0 0 / 0.1);
}
.card > * { margin-top: 0; }
.statement .card {
  border: 1px solid var(--hairline);
  padding: 2.5rem 3rem 3.5rem;
  outline: 0.5rem solid #fff;
  background: #f7f7f7;
}

/* Statement */
.statement h1 { font-size: 2rem; font-weight: 400; line-height: 1.2; margin-bottom: 2rem; }
.statement ol { padding-left: 1.25rem; }
.statement ol li { margin-bottom: 0.75rem; }
.footnote { font-size: 0.8rem; color: var(--muted); word-break: break-word; }
.footnote hr { border: 0; border-top: 1px solid var(--hairline); }

.sign { margin-top: 2rem; }
.sign > * { margin: 1rem; }
.sign h2 { margin-left: 0; font-size: 1.5rem; }
.placeholder {
  border: 1px dashed var(--accent-soft);
  color: var(--muted);
  padding: 2rem;
  text-align: center;
  font-family: ui-monospace, monospace;
  font-size: 0.9rem;
}

/* Signatories */
.count { color: var(--accent); font-weight: 600; }
.signatories .card ul {
  list-style: none;
  margin: 0;
  padding: 3rem 1rem 3rem 1.5rem;
  border: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.signatory p { margin: 0; }
.signatory .name { font-weight: 500; }
.signatory .role { font-size: 0.875rem; color: var(--muted); line-height: 1.4; }
.signatory blockquote {
  margin: 0.5rem 0 0;
  border-left: 2px solid var(--accent-soft);
  padding: 0.4rem 0.75rem;
  background: #f7f7f7;
  font-size: 0.875rem;
}
.updated { color: var(--muted); font-size: 0.8rem; margin-left: 1.75rem; }

@media (max-width: 640px) {
  .statement .card { padding: 1.5rem 1rem 2rem; }
  h2 { font-size: 2rem; margin-left: 1rem; }
}

header h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  margin: 0 auto 1rem;
  max-width: 28ch;
  text-wrap: balance;
}

/* Footnote references in the text */
.footnote-ref {
  display: inline-block;
  min-width: 1.4em;
  padding: 0 0.3em;
  margin-left: 0.15em;
  border-radius: 0.7em;
  background: rgb(0 0 0 / 0.07);
  color: var(--accent);
  font-size: 0.91em;
  font-weight: 600;
  line-height: 1.4em;
  text-align: center;
  text-decoration: none;
}
.footnote-ref:hover { background: #000; color: #fff; }
sup { line-height: 0; }

/* Flash the source (or the reference, on the way back) that was just jumped to. */
@keyframes flash {
  from { background: rgb(0 0 0 / 0.15); }
  to   { background: transparent; }
}
.footnote li:target { animation: flash 5s ease-in; border-radius: 4px; }
sup:target .footnote-ref { animation: flash 5s ease-in; }
.footnote li { scroll-margin-top: 40vh; }
sup { scroll-margin-top: 40vh; }
html { scroll-behavior: smooth; }

.contact { font-size: 0.9rem; margin: 1rem 0 0 1.75rem; }

.logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1.5rem 2rem;
  margin: 2rem 0 0;
}
.logos img { height: 44px; width: auto; }
/* The PIAF logo has built-in padding; compensate so it reads at the same size. */
.logos img.padded { height: 64px; }

/* Work-in-progress banner; remove before launch. */
.wip {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.75rem 1rem;
  background: #000;
  color: #fff;
  text-align: center;
  font-size: 0.95rem;
}