:root {
  --sky: #6ec1e4;
  --sky-soft: #e6f5fb;
  --ink: #12232c;
  --ink-soft: #3d5360;
  --bg: #ffffff;
  --band: #f3f9fc;
  --card: #ffffff;
  --line: #d3e4ec;
  --link: #0b6a92;
  --hero-bg: var(--sky);
  --hero-ink: #0c1f29;
  --button-bg: #0c1f29;
  --button-ink: #ffffff;
  --code-bg: #0f2430;
  --code-ink: #e6f5fb;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e4eef3;
    --ink-soft: #a9bcc6;
    --bg: #0d1a21;
    --band: #12232c;
    --card: #172c37;
    --line: #26414f;
    --link: #8fd3ef;
    --hero-bg: #12303f;
    --hero-ink: #eef8fc;
    --button-bg: var(--sky);
    --button-ink: #0c1f29;
    --code-bg: #08141a;
  }
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Ubuntu, Cantarell, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-wrap: break-word;
}

img { max-width: 100%; height: auto; }

a { color: var(--link); text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--link); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3 { line-height: 1.2; }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); margin: 0 0 1rem; }
h3 { font-size: 1.15rem; margin: 0 0 0.4rem; }

code, pre { font-family: ui-monospace, "Cascadia Mono", "DejaVu Sans Mono", Menlo, Consolas, monospace; font-size: 0.9em; }

.wrap { width: 100%; max-width: 1120px; margin-left: auto; margin-right: auto; padding-left: 1.25rem; padding-right: 1.25rem; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--button-bg); color: var(--button-ink); padding: 0.5rem 1rem; z-index: 10;
}
.skip:focus { left: 1rem; top: 1rem; }

/* Hero */
.hero { background: var(--hero-bg); color: var(--hero-ink); }
.hero a { color: inherit; }
.hero :focus-visible { outline-color: currentColor; }

.topnav {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.5rem 1.5rem; padding-top: 1rem; padding-bottom: 1rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 700; font-size: 1.15rem; text-decoration: none; }
.topnav ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 0; padding: 0; list-style: none; }
.topnav ul a { text-decoration: none; font-weight: 500; }
.topnav ul a:hover { text-decoration: underline; }

.hero-body {
  display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: 2rem;
  padding-top: 1.5rem; padding-bottom: 3.5rem;
}
.hero h1 { font-size: clamp(2.75rem, 2rem + 4vw, 4.75rem); margin: 0; letter-spacing: -0.02em; }
.pitch { font-size: clamp(1.25rem, 1.05rem + 0.9vw, 1.6rem); font-weight: 600; margin: 0.25rem 0 0.75rem; }
.sub { max-width: 34rem; margin: 0 0 1.75rem; }
.mascot { width: 100%; max-width: 440px; justify-self: center; filter: drop-shadow(0 12px 18px rgb(0 0 0 / 0.18)); }

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0; }
.button {
  display: inline-block; padding: 0.7rem 1.3rem; border-radius: 999px;
  background: var(--button-bg); color: var(--button-ink) !important;
  font-weight: 600; text-decoration: none; border: 2px solid var(--button-bg);
}
.button:hover { filter: brightness(1.15); }
.button.ghost { background: transparent; color: var(--hero-ink) !important; border-color: currentColor; }

/* Sections */
main section { padding: 4rem 0; }
.band { background: var(--band); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.cols.two { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.cols p, .card p { margin: 0; color: var(--ink-soft); }

.features {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}
.features li, .card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 1.25rem 1.35rem;
}
.features li { border-top: 4px solid var(--sky); }
.features p { margin: 0; color: var(--ink-soft); }

.lede { margin-top: -0.5rem; color: var(--ink-soft); }

.shot { margin: 0 0 1.75rem; }
.shot img {
  display: block; border-radius: 10px; border: 1px solid var(--line);
  box-shadow: 0 6px 24px rgb(0 0 0 / 0.12);
}
.shot.wide img, .shot.narrow img { margin: 0 auto; }
.shot.narrow img { max-width: min(100%, 640px); }
.shot figcaption { font-size: 0.92rem; color: var(--ink-soft); margin-top: 0.5rem; text-align: center; }

.note { margin: 1.25rem 0 0; color: var(--ink-soft); font-size: 0.95rem; }
.small { font-size: 0.92rem; color: var(--ink-soft); }

pre {
  background: var(--code-bg); color: var(--code-ink);
  padding: 1rem 1.25rem; border-radius: 10px; overflow-x: auto; line-height: 1.5;
}
p code { background: var(--sky-soft); color: #0c1f29; padding: 0.1em 0.35em; border-radius: 4px; }

.links { padding-left: 1.2rem; }
.links li { margin: 0.3rem 0; }

/* Footer */
.footer { background: var(--hero-bg); color: var(--hero-ink); padding: 2.5rem 0; text-align: center; font-size: 0.95rem; }
.footer a { color: inherit; }
.footer p { margin: 0.4rem 0; }

/* Narrow screens */
@media (max-width: 860px) {
  .hero-body { grid-template-columns: 1fr; text-align: center; padding-bottom: 2.5rem; }
  .hero-body .mascot { order: -1; max-width: 260px; }
  .sub { margin-left: auto; margin-right: auto; }
  .actions { justify-content: center; }
  .cols, .features { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .cols, .cols.two, .features { grid-template-columns: 1fr; }
  .topnav { justify-content: center; }
  main section { padding: 3rem 0; }
}
.shot a { display: block; }