:root { --bg: #ffffff; --fg: #111111; --muted: #6b6b6b; --line: #e6e6e6; --accent: #111111; --accent-fg: #ffffff;
        --warn: #b42318; --card: #f6f6f6; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b0b0b; --fg: #f2f2f2; --muted: #9a9a9a; --line: #262626; --accent: #f2f2f2; --accent-fg: #0b0b0b;
          --warn: #ff6b5e; --card: #161616; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body { font: 17px/1.45 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif; }
main { max-width: 440px; margin: 0 auto; padding: max(28px, env(safe-area-inset-top)) 16px 40px; }
h1 { font-size: 28px; line-height: 1.15; margin: 8px 0 12px; letter-spacing: -0.01em; }
h2 { font-size: 20px; line-height: 1.2; margin: 22px 0 10px; }
p { margin: 0 0 14px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.note { min-height: 1.4em; color: var(--warn); font-size: 15px; }
.card { background: var(--card); border-radius: 14px; padding: 14px 16px; margin: 0 0 16px; }
.card p:last-child { margin: 0; }
label { display: block; font-size: 14px; color: var(--muted); margin: 14px 0 6px; }
label.check { display: flex; gap: 10px; align-items: flex-start; color: var(--fg); font-size: 15px; margin: 16px 0; }
input, select { width: 100%; font: inherit; padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px;
                background: var(--bg); color: var(--fg); }
input[type=checkbox] { width: 22px; height: 22px; padding: 0; flex: none; }
button { font: inherit; cursor: pointer; }
button.primary { width: 100%; margin: 18px 0 10px; padding: 15px; border: 0; border-radius: 14px; background: var(--accent);
                 color: var(--accent-fg); font-weight: 600; }
button.primary:disabled { opacity: 0.45; cursor: default; }
button.link { background: none; border: 0; color: var(--muted); padding: 8px 0; text-decoration: underline; display: block; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 6px 0; }
.chip { padding: 10px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); }
.chip.on { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
code { font: 14px/1.4 ui-monospace, "SF Mono", Menlo, monospace; word-break: break-all; }
.addr-label { margin: 0 0 6px; font-size: 15px; }
code.select { -webkit-user-select: all; user-select: all; }
code .grp { margin-right: .45em; }
code .grp:last-child { margin-right: 0; }
/* the deposit QR (phase0 WP8): black on white in both themes, so any wallet's camera reads it */
.qr { display: block; width: 220px; height: 220px; max-width: 100%; margin: 6px auto 14px; padding: 8px;
      background: #fff; border-radius: 12px; image-rendering: pixelated; }
.addr { display: flex; gap: 10px; align-items: center; justify-content: space-between; margin: 0 0 14px; }
iframe.rail { width: 100%; min-height: 380px; border: 0; border-radius: 14px; }