/* Palette and type: design/README.md */
:root {
  --deep-water: #0C1120;
  --night-sea: #131A2E;
  --sea-haze: #7C89A6;
  --signal: #F6B54B;
  --horizon: #EFE9DC;
  --alert: #F2867A;
  --display: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --ui: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--deep-water); color: var(--horizon); }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font: 400 1.0625rem/1.6 var(--ui);
}

main {
  flex: 1;
  width: 100%;
  max-width: 44rem;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 2rem;
}

header { display: flex; align-items: center; gap: .75rem; margin-bottom: 2.5rem; }
.mark { display: block; }
.wordmark {
  margin: 0;
  font: 600 1.75rem/1 var(--display);
  letter-spacing: -0.012em;
}

h1, h2 { font-family: var(--display); font-weight: 600; letter-spacing: -0.012em; }
h1 { font-size: clamp(2.25rem, 6vw, 3.25rem); line-height: 1.1; margin: 0 0 1.25rem; }
h2 { font-size: 1.3rem; line-height: 1.25; margin: 0 0 .35rem; }
p { margin: 0 0 1rem; }
.lede { font-size: 1.2rem; color: var(--horizon); max-width: 36rem; }

.points {
  list-style: none;
  padding: 0;
  margin: 2.75rem 0;
  display: grid;
  gap: 1.75rem;
}
.points p { color: var(--sea-haze); margin: 0; }

.signup {
  background: var(--night-sea);
  border-radius: 14px;
  padding: 1.75rem 1.5rem;
}
.signup > p { color: var(--sea-haze); }

label { display: block; font-weight: 600; font-size: .95rem; margin-bottom: .4rem; }
.row { display: flex; flex-wrap: wrap; gap: .6rem; }
input[type=email] {
  flex: 1 1 14rem;
  min-width: 0;
  padding: .75rem .9rem;
  font: inherit;
  color: var(--horizon);
  background: var(--deep-water);
  border: 1px solid var(--sea-haze);
  border-radius: 10px;
}
input[type=email]:focus { outline: 2px solid var(--signal); outline-offset: 1px; border-color: transparent; }
button {
  flex: 0 0 auto;
  padding: .75rem 1.25rem;
  font: 650 1rem var(--ui);
  color: var(--deep-water);
  background: var(--signal);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}
button:focus-visible { outline: 2px solid var(--horizon); outline-offset: 2px; }

.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* The signup function redirects to /#joined or /#invalid. */
.msg { display: none; font-weight: 600; }
.msg:target { display: block; }
.msg.ok { color: var(--horizon); }
.msg.err { color: var(--alert); }
#joined:target ~ form { display: none; }

.doc p { max-width: 36rem; }

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

footer {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 1.5rem;
  font-size: .85rem;
}
footer a { color: var(--sea-haze); text-decoration: none; }
footer a:hover { color: var(--horizon); text-decoration: underline; }