:root { --bg: #f6f5f2; --card: #ffffff; --text: #1d1d1b; --muted: #6b6b66; --accent: #1f6f4a; --error: #b3261e; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #151513; --card: #20201d; --text: #efeee9; --muted: #a3a29b; --accent: #5cc08f; --error: #f2b8b5; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.5 -apple-system, "Segoe UI", Roboto, sans-serif; }
.card { max-width: 440px; margin: 24px auto; padding: 24px 20px; background: var(--card); border-radius: 16px; }
h1 { font-size: 22px; margin: 0 0 12px; }
label { display: block; margin: 16px 0 6px; color: var(--muted); font-size: 15px; }
input { width: 100%; padding: 12px; font-size: 17px; border: 1px solid var(--muted); border-radius: 10px; background: transparent; color: var(--text); }
button, .button { display: block; width: 100%; margin-top: 16px; padding: 14px; font-size: 17px; font-weight: 600; text-align: center;
  color: #fff; background: var(--accent); border: 0; border-radius: 12px; text-decoration: none; cursor: pointer; }
button.link { background: none; color: var(--muted); font-weight: 400; padding: 8px; margin-top: 8px; text-decoration: underline; }
.error { color: var(--error); }
.info, .status { color: var(--accent); }
.small { font-size: 15px; color: var(--muted); }
.steps { padding-left: 20px; }
.steps li { margin: 12px 0; }
.qr { display: block; width: 220px; max-width: 100%; margin: 12px auto; background: #fff; border-radius: 8px; }
.copy { font-size: 13px; }
details { margin-top: 16px; }
a { color: var(--accent); }
.plans { margin-top: 8px; }
.plan { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; }
.plan button { width: auto; min-width: 120px; margin: 0; padding: 12px 16px; }
.plan-month { display: block; font-size: 14px; color: var(--muted); }
.actions { margin-top: 20px; }