:root {
  --ground: #F2F2F8; --card: #FFFFFF; --ink: #1E2038; --ink-lo: #585D80;
  --line: rgba(30, 32, 56, 0.11); --accent: #5C52C7; --accent-ink: #FFFFFF;
  --accent-soft: rgba(92, 82, 199, 0.10); --kbd-bg: rgba(30, 32, 56, 0.06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #14162B; --card: #1B1E38; --ink: #ECEDF6; --ink-lo: #A8ACCB;
    --line: rgba(236, 237, 246, 0.11); --accent: #857CE8; --accent-ink: #14162B;
    --accent-soft: rgba(133, 124, 232, 0.14); --kbd-bg: rgba(236, 237, 246, 0.08);
  }
}
:root[data-theme="light"] {
  --ground: #F2F2F8; --card: #FFFFFF; --ink: #1E2038; --ink-lo: #585D80;
  --line: rgba(30,32,56,0.11); --accent: #5C52C7; --accent-ink: #FFFFFF;
  --accent-soft: rgba(92,82,199,0.10); --kbd-bg: rgba(30,32,56,0.06);
}
:root[data-theme="dark"] {
  --ground: #14162B; --card: #1B1E38; --ink: #ECEDF6; --ink-lo: #A8ACCB;
  --line: rgba(236,237,246,0.11); --accent: #857CE8; --accent-ink: #14162B;
  --accent-soft: rgba(133,124,232,0.14); --kbd-bg: rgba(236,237,246,0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--ground); color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
header.site { display: flex; align-items: center; gap: 14px; padding: 22px 0 0; }
.lockup { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 20px; color: var(--ink); font-family: ui-rounded, -apple-system, system-ui, sans-serif; }
.lockup svg { display: block; }
header.site nav { margin-left: auto; display: flex; gap: 24px; font-size: 14.5px; font-weight: 600; }
header.site nav a { color: var(--ink-lo); }
header.site nav a:hover { color: var(--ink); text-decoration: none; }
h1 { font-family: ui-rounded, -apple-system, system-ui, sans-serif; font-size: 38px; line-height: 1.1; letter-spacing: -0.02em; margin: 56px 0 8px; text-wrap: balance; }
.updated { color: var(--ink-lo); font-size: 13.5px; margin: 0 0 36px; }
h2 { font-family: ui-rounded, -apple-system, system-ui, sans-serif; font-size: 22px; margin: 40px 0 10px; letter-spacing: -0.01em; }
p, li { color: var(--ink); }
p.muted, li.muted { color: var(--ink-lo); }
ul { padding-left: 22px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 24px; }
footer.site { margin-top: 72px; border-top: 1px solid var(--line); padding: 24px 0 48px; display: flex; align-items: center; gap: 14px; color: var(--ink-lo); font-size: 13px; flex-wrap: wrap; }
footer.site nav { margin-left: auto; display: flex; gap: 18px; }
.btn { display: inline-block; font-weight: 700; font-size: 15px; background: var(--accent); color: var(--accent-ink); padding: 11px 20px; border-radius: 999px; border: none; cursor: pointer; }
.btn:hover { filter: brightness(1.07); text-decoration: none; }
label { display: block; font-size: 13.5px; font-weight: 700; margin: 18px 0 6px; }
input, select, textarea {
  width: 100%; font: inherit; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 12px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
textarea { min-height: 140px; resize: vertical; }