:root {
  --ultramarine: #3F4BE0;
  --ultramarine-text: #3F4BE0;
  --ultramarine-pressed: #323CC0;
  --on-ultramarine: #FFFFFF;
  --bg: #FFFFFF;
  --glow: rgba(63, 75, 224, 0.14);
  --text: #15172B;
  --text-secondary: #5A5E78;
  /* The mark of inkwhale-site-3 (brand-mark in CLAUDE.md). */
  --whale-body: #22355C;
  --whale-eye: #F6F5F2;
  --ribbon: #3F4BE0;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ultramarine-text: #A5ADFF;
    --ultramarine-pressed: #5561F0;
    --bg: #0E0F1A;
    --glow: rgba(63, 75, 224, 0.32);
    --text: #F2F3FA;
    --text-secondary: #A3A7C0;
    --whale-body: #E9EBF5;
    --whale-eye: #0F0F12;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  background-image: radial-gradient(60rem 36rem at 50% -8rem, var(--glow), transparent 70%);
  background-repeat: no-repeat;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.55;
}
main {
  flex: 1;
  width: 100%;
  max-width: 40rem;
  margin: 0 auto;
  padding: 3.5rem 1rem 3rem;
}
a { color: var(--ultramarine-text); text-underline-offset: 0.15em; }
h1, h2 { font-weight: 500; letter-spacing: -0.01em; line-height: 1.2; }
h1 { font-size: 2rem; margin: 0 0 0.75rem; }
h2 { font-size: 1.25rem; margin: 2.25rem 0 0.5rem; }
p, ul { margin: 0 0 1rem; }
ul { padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; }
.secondary { color: var(--text-secondary); }

.brand { display: inline-block; margin-bottom: 2rem; line-height: 0; }
/* The header lockup: larger on the home page's hero, smaller on the others. */
.brand .lockup { height: 2.25rem; width: auto; }
.hero > .brand .lockup { height: 3rem; }
.lockup .w-body, .lockup .w-word { fill: var(--whale-body); }
.lockup .w-ribbon { fill: var(--ribbon); }
.lockup .w-eye { fill: var(--whale-eye); }
.lockup .w-word { font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", system-ui, "Helvetica Neue", Arial, sans-serif; }

.hero { text-align: left; padding-top: 2rem; }
.hero h1 { font-size: clamp(2.5rem, 9vw, 3.5rem); font-weight: 500; letter-spacing: -0.02em; margin-bottom: 1rem; }
.hero .lede { font-size: 1.25rem; color: var(--text-secondary); max-width: 32rem; margin-bottom: 2rem; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  background: var(--ultramarine);
  color: var(--on-ultramarine);
  font: inherit;
  font-weight: 500;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  transition: background-color 150ms ease, transform 150ms ease;
}
.button:hover { background: var(--ultramarine-pressed); }
.button:active { transform: scale(0.98); }
.button:focus-visible { outline: 3px solid var(--ultramarine-text); outline-offset: 3px; }

.points { list-style: none; padding: 0; margin: 2.5rem 0 0; }
.points li { padding: 0.75rem 0; margin: 0; }
.points strong { display: block; font-weight: 500; }
.points span { color: var(--text-secondary); }

footer {
  width: 100%;
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 2.5rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}
footer a { color: var(--text-secondary); }
@media (prefers-reduced-motion: reduce) { .button { transition: none; } }
strong { font-weight: 500; }