:root { --bg: var(--tg-theme-bg-color, #1c1c1e); --fg: var(--tg-theme-text-color, #fff); }
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, system-ui, sans-serif; background: var(--bg); color: var(--fg); padding: 16px; }
header h1 { font-size: 20px; margin: 0 0 4px; }
button { width: 100%; padding: 14px; border: 0; border-radius: 12px; background: #2f80ed; color: #fff; font-size: 16px; margin: 8px 0; }
.card { background: rgba(255,255,255,.06); border-radius: 14px; padding: 14px; margin: 10px 0; }
.card .iban { opacity: .6; font-size: 12px; word-break: break-all; }
.card .solde { font-size: 22px; font-weight: 700; margin-top: 6px; }
input { width: 100%; padding: 12px; border-radius: 10px; border: 1px solid rgba(255,255,255,.15); background: transparent; color: var(--fg); margin: 6px 0; }