:root {
  --ink: #0C1723;
  --blue: #0077E8;
  --bg: #F6F8FA;
  --card: #FFFFFF;
  --muted: #5A6B7C;
  --line: #D7DEE7;
  --ok: #0B7A3B;
  --warn-bg: #FFF6E5;
  --warn-ink: #7A4A00;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}
.top {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 24px; border-bottom: 1px solid var(--line); background: #fff;
}
.logo { display: block; }
.brand { font-weight: 700; letter-spacing: -0.02em; }
.wrap { max-width: 640px; margin: 40px auto; padding: 0 20px 60px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 28px 28px 32px; box-shadow: 0 8px 24px rgba(12,23,35,0.04);
}
.eyebrow { text-transform: uppercase; letter-spacing: 0.08em; font-size: 12px; color: var(--blue); font-weight: 700; margin: 0 0 8px; }
h1,h2 { margin: 0 0 12px; letter-spacing: -0.03em; }
.lede { color: var(--muted); margin: 0 0 20px; }
.trust { margin: 0 0 24px; padding-left: 18px; color: var(--ink); }
.trust li { margin-bottom: 8px; }
.fine { color: var(--muted); font-size: 13px; margin-top: 16px; }
.btn {
  appearance: none; border: 0; border-radius: 10px; padding: 12px 18px;
  font-weight: 650; font-size: 15px; cursor: pointer; display: inline-block; text-decoration: none;
}
.btn.primary { background: var(--blue); color: #fff; }
.btn.primary:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.banner { border-radius: 10px; padding: 12px 14px; margin-bottom: 16px; font-size: 14px; }
.banner.warn { background: var(--warn-bg); color: var(--warn-ink); border: 1px solid #F0D9A8; }
.hidden { display: none !important; }
.list { display: grid; gap: 10px; margin-bottom: 20px; }
.acct {
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; cursor: pointer; background: #fff; text-align: left;
}
.acct.selected { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(0,119,232,0.15); }
.acct strong { display: block; }
.acct span { color: var(--muted); font-size: 13px; }
.code {
  background: #0C1723; color: #E8EEF5; padding: 14px; border-radius: 10px;
  overflow: auto; font-size: 12px; min-height: 120px;
}
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em; }