:root {
  --page: #f3efe7; /* warm light grey */
  --paper: #fbfaf7; /* off-white boxes */
  --ink: #2a2a2a; /* dark grey text */
  --muted: rgba(42, 42, 42, 0.72);
  --faint: rgba(42, 42, 42, 0.56);
  --border: rgba(42, 42, 42, 0.18);

  --accent: #2a2a2a;
  --max: 980px;

  --font-body: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  --font-display: "Raleway", ui-sans-serif, system-ui, -apple-system, Segoe UI,
    Roboto, Inter, Helvetica, Arial;
}

/* Load display font */
@import url("https://fonts.googleapis.com/css2?family=Raleway:wght@400;600;700&display=swap");

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

body {
  margin: 0;
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--ink);
  background: var(--page);
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 10px;
  padding: 10px 12px;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--border);
  transform: translateY(-200%);
  transition: transform 160ms ease;
  z-index: 1000;
}

.skip-link:focus {
  transform: translateY(0);
  outline: none;
}

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(6px);
  background: rgba(243, 239, 231, 0.82);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-text {
  display: block;
}

.brand-text strong {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0.1px;
}

nav.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link {
  padding: 6px 8px;
  text-decoration: none;
  color: var(--muted);
  border-bottom: 1px solid transparent;
}

.nav-link[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.nav-link:hover {
  color: var(--ink);
  border-bottom-color: rgba(42, 42, 42, 0.5);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 0;
  border: 1px solid var(--border);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition: background 140ms ease, border-color 140ms ease;
}

.btn:hover {
  background: #ffffff;
  border-color: rgba(42, 42, 42, 0.28);
}

.btn:focus-visible,
.nav-link:focus-visible {
  outline: 2px solid rgba(42, 42, 42, 0.65);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border-color: rgba(42, 42, 42, 0.5);
}

.btn-primary:hover {
  background: #141414;
}

/* Homepage signup: Raleway + shrink-to-text inside centered grid column */
[data-signup-link] {
  font-family: var(--font-display);
  width: fit-content;
  max-width: 100%;
  justify-self: center;
}

.btn-small {
  padding: 9px 12px;
  font-size: 0.95rem;
}

main {
  padding: 34px 0 64px;
}

h1 {
  margin: 0 0 14px;
  line-height: 1.08;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.1rem, 4.4vw, 3.15rem);
  letter-spacing: -0.02em;
}

.lede {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 1.06rem;
}

section {
  margin-top: 26px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.section-subtitle {
  margin: 0 0 16px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.grid > .card {
  grid-column: span 12;
}

.card {
  padding: 18px;
  border-radius: 0;
  background: var(--paper);
  border: 1px solid var(--border);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.callout {
  padding: 18px;
  border-radius: 0;
  border: 1px solid var(--border);
  background: var(--paper);
}

.callout strong {
  color: var(--ink);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  text-align: left;
  font-weight: 600;
}

.list li {
  margin: 8px 0;
}

.muted {
  color: var(--muted);
}

.faint {
  color: var(--faint);
}

.table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 0;
  border: 1px solid var(--border);
  background: var(--paper);
}

.table th,
.table td {
  text-align: left;
  padding: 12px 12px;
  border-bottom: 1px solid rgba(42, 42, 42, 0.12);
  vertical-align: top;
}

.table th {
  color: var(--ink);
  font-size: 0.95rem;
  background: rgba(42, 42, 42, 0.04);
}

.table td {
  color: var(--muted);
}

.table tr:last-child td {
  border-bottom: none;
}

footer.site-footer {
  padding: 26px 0 40px;
  border-top: 1px solid var(--border);
  background: rgba(243, 239, 231, 0.65);
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-inner p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tag {
  font-size: 0.86rem;
  padding: 6px 10px;
  border-radius: 0;
  border: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
}

.tag:hover {
  color: var(--ink);
  background: #ffffff;
}

@media (min-width: 760px) {
  .grid .card.span-6 {
    grid-column: span 6;
  }
  .grid .card.span-4 {
    grid-column: span 4;
  }
  .grid .card.span-8 {
    grid-column: span 8;
  }
}

@media (max-width: 860px) {
  nav.site-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn,
  .skip-link {
    transition: none;
  }
}

/* New simplified homepage layout */
.center-stack {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
  text-align: center;
}

.paper {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 22px;
}

.paper h2,
.paper h3 {
  margin-top: 0;
}

.banner {
  height: clamp(180px, 28vw, 280px);
  border: 1px solid var(--border);
  padding: 0;
  overflow: hidden;
  background: rgba(42, 42, 42, 0.04);
}

.banner-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.organiser-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.organiser-photo-frame {
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 220px;
  border: 1px solid var(--border);
  background: rgba(42, 42, 42, 0.04);
  margin-bottom: 12px;
  overflow: hidden;
  margin-left: auto;
  margin-right: auto;
}

.organiser-card {
  padding: 12px;
}

.organiser-card h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.organiser-card p {
  font-size: 0.95rem;
}

.organiser-card .tag {
  padding: 5px 9px;
}

.paper p {
  text-align: left;
  margin: 0 0 12px;
  color: var(--muted);
}

.paper[aria-label="Call for participation"] {
  text-align: left;
}

.paper p:last-child {
  margin-bottom: 0;
}

.stack-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Animal network background canvas */
#network-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.55;
}