:root { color-scheme: dark; --fg: #f5f5f7; --bg: #000; --card: #1c1c1e; --muted: #98989d; --line: #38383a; --accent: #0a84ff; --danger: #ff453a; }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--fg); background: var(--bg); }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }
h1 { font-size: 26px; margin: 0 0 8px; }
h2 { font-size: 18px; margin: 0; }
a { color: var(--accent); text-decoration: none; }
header { display: flex; justify-content: space-between; align-items: center; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 16px 0; }
.card.off { opacity: .6; }
.narrow { max-width: 340px; margin: 18vh auto; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.spread { justify-content: space-between; margin-top: 0; }
.muted { color: var(--muted); }
.err { color: var(--danger); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.big { font-size: 32px; letter-spacing: 2px; margin: 0 0 12px; }
label { display: block; color: var(--muted); font-size: 13px; }
label.inline { display: flex; gap: 6px; align-items: center; }
input, textarea { font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
label input { display: block; width: 100%; margin: 4px 0 12px; }
label.inline input { width: 64px; margin: 0; }
textarea { width: 100%; resize: vertical; }
button, .button { font: inherit; cursor: pointer; color: #fff; background: var(--accent); border: 0; border-radius: 8px; padding: 8px 14px; display: inline-block; }
button.danger { background: var(--danger); }
button.link { background: none; color: var(--accent); padding: 0; }
button.link.danger { color: var(--danger); }
table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 14px; }
th, td { text-align: left; padding: 6px 4px; border-top: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; }
form { margin: 0; }
img.qr { width: 240px; height: auto; image-rendering: pixelated; background: #fff; padding: 8px; border-radius: 8px; }