:root {
  color-scheme: light dark;
  --bg: #faf5f7;
  --card: #fff;
  --ink: #1a1016;
  --muted: #6c5b63;
  --line: rgba(24, 12, 18, 0.14);
  --accent: #b3155a;
  --button: #e11d6b;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b090c;
    --card: #17131b;
    --ink: #f7f0f4;
    --muted: #b6a8b0;
    --line: rgba(255, 255, 255, 0.13);
    --accent: #ff5c95;
    --button: #e11d6b;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 1rem/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}
a { color: var(--accent); text-underline-offset: 0.18em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.wrap { width: min(100% - 2.5rem, 48rem); margin-inline: auto; }
header { border-bottom: 1px solid var(--line); }
header .wrap { min-height: 4.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.wordmark { color: var(--ink); font-weight: 800; font-size: 1.25rem; letter-spacing: -0.03em; text-decoration: none; }
.wordmark b { color: var(--accent); }
nav { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; font-size: 0.88rem; }
main { padding-block: clamp(2.5rem, 7vw, 5rem); }
h1, h2 { line-height: 1.15; letter-spacing: -0.025em; }
h1 { font-size: clamp(2.25rem, 7vw, 4.25rem); margin: 0 0 0.7rem; }
h2 { margin: 2.4rem 0 0.6rem; font-size: 1.35rem; }
p, ul { margin: 0.7rem 0; }
li + li { margin-top: 0.45rem; }
.lede { font-size: 1.12rem; color: var(--muted); max-width: 42rem; }
.meta { color: var(--muted); font: 0.78rem/1.5 ui-monospace, "SFMono-Regular", Consolas, monospace; }
.notice { margin: 1.5rem 0; padding: 1rem 1.1rem; border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 0.65rem; background: var(--card); }
.notice strong { display: block; }
form { display: grid; gap: 1rem; margin-top: 1.5rem; padding: 1.25rem; border: 1px solid var(--line); border-radius: 0.85rem; background: var(--card); }
label { display: grid; gap: 0.35rem; font-weight: 650; }
label small, .hint { color: var(--muted); font-weight: 400; }
input, select, textarea {
  width: 100%; padding: 0.75rem; border: 1px solid var(--line); border-radius: 0.5rem;
  background: var(--bg); color: var(--ink); font: inherit;
}
textarea { resize: vertical; min-height: 8rem; }
.check { display: grid; grid-template-columns: auto 1fr; align-items: start; gap: 0.65rem; font-weight: 400; }
.check input { width: 1.1rem; height: 1.1rem; margin-top: 0.2rem; }
button { justify-self: start; border: 0; border-radius: 999px; padding: 0.75rem 1.15rem; background: var(--button); color: #fff; font: inherit; font-weight: 700; cursor: pointer; }
button:disabled { opacity: 0.55; cursor: wait; }
.form-status { min-height: 1.5rem; margin: 0; }
.form-status[data-state="error"] { color: #d92d20; }
.form-status[data-state="success"] { color: #18794e; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
footer { border-top: 1px solid var(--line); padding-block: 2rem; color: var(--muted); font-size: 0.86rem; }