:root {
  color-scheme: light dark;
  --bg: #FFFFFF; --fg: #0E2140; --fg-soft: #2A3B57; --fg-mute: #4F5F78; --accent-text: #0057BA; --accent-soft: rgba(0,87,186,.08);
  --hair: #E4E1D8; --raised: #FFFFFF; --btn-bg: #0057BA; --btn-fg: #FFFFFF; --err: #B3123A; --ok: #0B7A5C;
  --sans: 'IBM Plex Sans', -apple-system, 'Segoe UI', sans-serif; --mono: 'Martian Mono', ui-monospace, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141618; --fg: #EEF0F2; --fg-soft: #C9CED4; --fg-mute: #A9B0B8; --accent-text: #7FB2F0; --accent-soft: rgba(127,178,240,.14);
    --hair: #30353A; --raised: #1D2023; --btn-bg: #7FB2F0; --btn-fg: #0E2140; --err: #FF8FA6; --ok: #5FD9B4; }
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--sans); background: var(--bg); color: var(--fg-soft); padding: 48px 24px 32px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
.content { max-width: 720px; margin: 0 auto; }
h1 { font-size: 26px; line-height: 1.25; color: var(--fg); margin-bottom: 8px; }
.updated { font-size: 13px; color: var(--fg-mute); margin-bottom: 32px; }
h2 { font-size: 17px; color: var(--fg); margin: 32px 0 12px; }
h3 { font-size: 14px; color: var(--fg-soft); margin: 20px 0 8px; font-weight: 600; }
p, li, dd { font-size: 14px; color: var(--fg-soft); margin-bottom: 12px; overflow-wrap: anywhere; }
ul, ol { padding-left: 22px; }
a { color: var(--accent-text); }
code { overflow-wrap: anywhere; }
table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 13px; }
@media (max-width: 600px) { table { display: block; overflow-x: auto; } }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--hair); vertical-align: top; }
th { color: var(--fg-soft); font-weight: 600; }
.wordmark { display: inline-flex; align-items: center; line-height: 1; text-decoration: none; margin-bottom: 24px; }
.wordmark .lk { display: block; height: 30px; width: auto; overflow: visible; }
.lk-tile { fill: #0E2140; } .lk-ink { stroke: #0E2140; } .lk-cur { stroke: #0057BA; }
@media (prefers-color-scheme: dark) { .lk-ink { stroke: #EEF0F2; } .lk-cur { stroke: #8EC1FF; } .lk-tile { fill: #0E2140; stroke: #30353A; stroke-width: 1; } }
.top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.lang { font-size: 13px; padding-top: 6px; }
.note { background: var(--accent-soft); padding: 12px 14px; border-radius: 8px; }
.footer-links { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--hair); font-size: 12px; text-align: center; line-height: 2; }
.footer-links a { color: var(--fg-soft); text-decoration: none; margin: 0 8px; white-space: nowrap; }
.footer-links a:hover { text-decoration: underline; }
.footer-links .by { display: block; color: var(--fg-mute); margin-top: 4px; }
details { border-bottom: 1px solid var(--hair); padding: 12px 0; }
summary { cursor: pointer; font-weight: 600; color: var(--fg); font-size: 15px; }
details p, details ol, details ul { margin-top: 10px; }
/* delete-account form */
.card { border: 1px solid var(--hair); border-radius: 14px; padding: 20px; margin: 20px 0; background: var(--raised); }
label.lbl { display: block; font-size: 13px; font-weight: 500; color: var(--fg-soft); margin: 14px 0 6px; }
.field { width: 100%; height: 44px; padding: 0 14px; border-radius: 8px; border: 1px solid var(--hair); background: var(--bg); color: var(--fg); font: inherit; font-size: 16px; }
.field:focus-visible, .btn:focus-visible { outline: 3px solid rgba(0,87,186,.4); outline-offset: 1px; }
.field.code { text-align: center; font-family: var(--mono); font-size: 22px; letter-spacing: .3em; }
.btn { appearance: none; border: 0; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 22px; margin-top: 16px; border-radius: 999px; background: var(--btn-bg); color: var(--btn-fg); font: inherit; font-size: 14px; font-weight: 500; max-width: 100%; }
.btn[disabled] { opacity: .55; cursor: default; }
.btn.danger { background: var(--err); color: #fff; }
.btn.ghost { background: transparent; color: var(--accent-text); box-shadow: inset 0 0 0 1px currentColor; margin-left: 8px; }
.msg-err { color: var(--err); font-size: 13px; margin-top: 12px; min-height: 1em; }
.msg-ok { color: var(--ok); font-size: 15px; font-weight: 600; }
[hidden] { display: none !important; }