:root {
  --bg: #0d0f12;
  --surface: #15181d;
  --surface-raised: #1a1e24;
  --line: rgba(242, 237, 225, .1);
  --line-bright: rgba(242, 237, 225, .24);
  --ink: #f5f1e8;
  --ink-dim: #aaa79f;
  --accent: #ff7147;
  --accent-soft: #ffc06a;
  --radius: 22px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  background:
    radial-gradient(circle at 82% 9%, rgba(255, 113, 71, .13), transparent 24rem),
    radial-gradient(circle at 15% 32%, rgba(109, 183, 190, .08), transparent 28rem),
    var(--bg);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  z-index: 100;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.07'/%3E%3C/svg%3E");
}

:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--bg);
  transform: translateY(-150%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }

.wrap { max-width: 1240px; }

.nav {
  max-width: 1240px;
  width: calc(100% - 48px);
  margin: 18px auto 0;
  padding: 13px 16px 13px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(16, 18, 22, .78);
  box-shadow: 0 12px 40px rgba(0, 0, 0, .18);
}
.nav .brand { display: flex; align-items: center; gap: 10px; font-size: 20px; }
.nav .brand::before {
  content: "JS";
  display: grid;
  place-items: center;
  width: 31px;
  height: 31px;
  border-radius: 50%;
  color: #15100d;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  font: 700 10px/1 var(--font-mono);
  letter-spacing: -.04em;
}
.nav nav a { padding: 7px 4px; transition: color .2s ease; }

.hero {
  min-height: min(780px, calc(100svh - 68px));
  display: grid;
  align-content: center;
  position: relative;
  padding-top: 112px;
  padding-bottom: 100px;
}
.hero::after {
  content: "";
  position: absolute;
  right: 5%;
  top: 15%;
  width: clamp(170px, 26vw, 330px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 113, 71, .28);
  border-radius: 50%;
  box-shadow:
    0 0 0 38px rgba(255, 113, 71, .025),
    0 0 0 76px rgba(255, 113, 71, .018);
  background: radial-gradient(circle at 36% 34%, rgba(255, 192, 106, .2), transparent 7%, transparent 100%);
  opacity: .8;
  pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }
.kicker { display: flex; align-items: center; gap: 10px; }
.kicker::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.hero h1 {
  max-width: 11ch;
  font-size: clamp(58px, 8.8vw, 118px);
  line-height: .91;
  letter-spacing: -.055em;
  text-wrap: balance;
  margin-bottom: 38px;
}
.hero h1 em { color: var(--accent); font-weight: inherit; }
.hero p { font-size: clamp(17px, 1.8vw, 21px); max-width: 54ch; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.cta, .btn {
  border-radius: 999px;
  transition: transform .2s ease, border-color .2s ease, color .2s ease, background .2s ease;
}
.cta:hover, .btn:hover { transform: translateY(-2px); }
.cta.primary {
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  box-shadow: 0 12px 30px rgba(255, 113, 71, .18);
}

.sec-head { padding-bottom: 20px; margin-bottom: 30px; }
.sec-head h2 { font-size: clamp(32px, 4vw, 48px); letter-spacing: -.025em; }

.featured { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.fcard {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 48px);
  background: linear-gradient(145deg, rgba(28, 32, 38, .98), rgba(19, 22, 27, .96));
  box-shadow: 0 24px 70px rgba(0, 0, 0, .18);
  transition: transform .25s ease, border-color .25s ease;
}
.fcard::before {
  content: "";
  position: absolute;
  width: 220px;
  aspect-ratio: 1;
  right: -80px;
  top: -100px;
  border-radius: 50%;
  background: var(--card-glow, rgba(255, 113, 71, .15));
  filter: blur(8px);
}
.fcard:nth-child(2) { --card-glow: rgba(232, 195, 107, .14); }
.fcard:hover { transform: translateY(-5px); }
.fcard .top, .fcard h3, .fcard .tagline, .fcard .desc, .fcard .foot { position: relative; }
.badge { border-radius: 999px; }
.fcard h3 { font-size: clamp(34px, 4vw, 50px); letter-spacing: -.025em; }
.fcard .tagline { max-width: 35ch; }
.fcard .foot { align-items: flex-end; }
.card-actions { display: flex; flex-direction: column; align-items: flex-end; }
.button-row { display: flex; gap: 10px; }
.legal-links { display: flex; gap: 12px; margin-top: 11px; }
.legal-links a {
  color: var(--ink-dim);
  font: 11px/1.4 var(--font-mono);
  border-bottom: 1px solid transparent;
}
.legal-links a:hover { color: var(--ink); border-color: var(--ink-dim); }

.grid { border-radius: var(--radius); overflow: hidden; }
.gcard { position: relative; min-height: 300px; transition: background .2s ease; }
.gcard h3 { font-size: 29px; letter-spacing: -.02em; }
.gcard .num { color: rgba(255, 255, 255, .15); }

.about {
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(34px, 6vw, 76px);
  background: linear-gradient(135deg, rgba(255, 113, 71, .055), rgba(255, 255, 255, .015));
}
.about .lede { font-size: clamp(27px, 3.3vw, 40px); line-height: 1.28; letter-spacing: -.02em; }
.about > * { min-width: 0; }
.fact { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 12px; overflow-wrap: anywhere; }

.support { border-top: 0; padding-top: 112px; }
.support .inner { max-width: 760px; }
.support h2 { font-size: clamp(36px, 5vw, 62px); line-height: 1.05; letter-spacing: -.035em; }

.footer { margin-bottom: 20px; }

/* Project collections and funding share the existing palette and typography. */
.nav nav a.nav-sponsor {
  padding: 8px 15px;
  border: 1px solid rgba(255, 113, 71, .4);
  border-radius: 999px;
  color: var(--accent-soft);
  background: rgba(255, 113, 71, .07);
}
.nav-sponsor span { margin-right: 5px; }
.nav nav a.nav-sponsor:hover { background: rgba(255, 113, 71, .16); }
.project-collection { padding-bottom: 88px; scroll-margin-top: 90px; }
.project-collection .sec-head { align-items: flex-end; gap: 24px; }
.project-collection .kicker { margin-bottom: 12px; }
.project-collection .sec-head p {
  margin: 0 0 5px;
  max-width: 31ch;
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.6;
}
.open-source .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.open-source .gcard { background: #121b1e; }
.open-source .gcard:hover { background: #182428; }
.open-source .kicker, .open-source .gcard .status { color: #a0d4cb; }
.sponsor { padding-bottom: 100px; scroll-margin-top: 90px; }
.sponsor-panel {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, .8fr);
  align-items: center;
  gap: clamp(32px, 6vw, 80px);
  padding: clamp(28px, 5vw, 64px);
  border: 1px solid rgba(255, 113, 71, .3);
  border-radius: var(--radius);
  background: radial-gradient(ellipse at 95% 15%, rgba(255, 113, 71, .17), transparent 65%), #1b1918;
}
.sponsor .kicker { color: var(--accent-soft); margin-bottom: 24px; }
.sponsor .kicker span { font-size: 22px; vertical-align: -2px; margin-right: 6px; }
.sponsor h2 {
  font-size: clamp(34px, 4.5vw, 58px);
  line-height: 1.12;
  letter-spacing: -.035em;
  margin: 0 0 24px;
}
.sponsor h2 em { color: var(--accent-soft); font-weight: 400; }
.sponsor-copy p { max-width: 49ch; color: var(--ink-dim); font-size: 15px; line-height: 1.75; }
.sponsor-copy .sponsor-note { font-size: 12px; margin: 22px 0 0; }
.sponsor-options { display: flex; flex-direction: column; gap: 12px; }
.sponsor-label { font: 11px/1.5 var(--font-mono); text-transform: uppercase; letter-spacing: .12em; margin-bottom: 6px; color: var(--ink-dim); }
.sponsor-options > a { text-align: center; }
.sponsor-options > a span { margin-left: 10px; }
.funding-alternatives { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 18px; margin-top: 10px; }
.funding-link { color: var(--ink-dim); font: 11px/1.7 var(--font-mono); text-underline-offset: 4px; }
.funding-link:hover { color: var(--accent-soft); text-decoration: underline; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media (max-width: 760px) {
  .nav { width: calc(100% - 24px); margin-top: 10px; padding: 10px 12px; }
  .nav nav { gap: 12px; }
  .nav nav a:nth-child(2) { display: none; }
  .hero { min-height: auto; padding-top: 100px; overflow: clip; }
  .hero::after { right: -16%; top: 9%; opacity: .5; }
  .hero h1 { font-size: clamp(54px, 18vw, 78px); }
  .featured { grid-template-columns: 1fr; }
  .fcard .foot { align-items: flex-start; }
  .card-actions { align-items: flex-start; }
  .about { margin-left: 16px; margin-right: 16px; }
  .fact { grid-template-columns: 90px minmax(0, 1fr); }
  .project-collection .sec-head { align-items: flex-start; flex-direction: column; gap: 12px; }
  .project-collection .sec-head p { max-width: none; }
  .open-source .grid { grid-template-columns: 1fr; }
  .sponsor-panel { grid-template-columns: 1fr; }
  .sponsor-options { max-width: 420px; width: 100%; }
  .grid { grid-template-columns: minmax(0, 1fr); }
  .nav nav a.nav-sponsor { padding: 7px 10px; }
}

@media (max-width: 440px) {
  .nav .brand { font-size: 0; gap: 0; }
  .nav .brand::before { font-size: 10px; }
  .nav nav { font-size: 11px; gap: 8px; }
  .nav nav a { white-space: nowrap; }
  .card-actions, .button-row { width: 100%; }
  .button-row { flex-direction: column; }
  .fcard .btn { display: block; text-align: center; }
}