:root { color-scheme: light dark; --bg: #ffffff; --ink: #0a0a0a; --muted: #6e6e73; --line: #e5e5ea; --field: #f2f2f7; --accent: #0a0a0a; --on-accent: #ffffff; --danger: #d92d20; }
@media (prefers-color-scheme: dark) { :root { --bg: #121212; --ink: #f5f5f5; --muted: #98989f; --line: #2c2c2e; --field: #1c1c1e; --accent: #f5f5f5; --on-accent: #0a0a0a; --danger: #ff6961; } }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; background: var(--bg); color: var(--ink); font: 17px/1.45 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif; }
main { width: min(420px, 100% - 32px); padding: 32px 0; }
h1 { font-size: 28px; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 8px; }
p { margin: 0 0 16px; color: var(--muted); }
.brand { font-weight: 700; letter-spacing: -0.03em; font-size: 20px; margin-bottom: 28px; color: var(--ink); }
.code { font: 600 28px/1 ui-monospace, "SF Mono", Menlo, monospace; letter-spacing: 0.06em; padding: 18px; border-radius: 16px; background: var(--field); text-align: center; margin: 8px 0 20px; color: var(--ink); }
label { display: block; font-size: 13px; color: var(--muted); margin: 0 0 6px; }
input { width: 100%; font: inherit; color: var(--ink); background: var(--field); border: 1px solid transparent; border-radius: 14px; padding: 13px 16px; margin: 0 0 12px; outline: none; }
input:focus { border-color: var(--line); }
button { width: 100%; font: 600 17px/1 inherit; font-family: inherit; border: 0; border-radius: 14px; padding: 15px; cursor: pointer; background: var(--accent); color: var(--on-accent); }
button.quiet { background: transparent; color: var(--muted); font-weight: 500; margin-top: 6px; }
button.danger { background: transparent; color: var(--danger); border: 1px solid var(--line); margin-top: 24px; }
button:disabled { opacity: 0.5; cursor: default; }
.error { color: var(--danger); min-height: 22px; font-size: 15px; margin: 4px 0 0; }
.step[hidden] { display: none; }
.status { padding: 14px 16px; border-radius: 14px; background: var(--field); margin: 0 0 12px; color: var(--ink); }
main.legal { width: min(640px, 100% - 32px); }
.legal h2 { font-size: 19px; margin: 28px 0 8px; }
.legal p, .legal li { color: var(--ink); }
.legal ul { padding-left: 20px; margin: 0 0 16px; }
.legal li { margin: 0 0 8px; }
.legal .status { display: inline-block; padding: 6px 12px; font-size: 14px; color: var(--muted); }
a { color: inherit; }