* { box-sizing: border-box; }
body { font-family: system-ui, Arial, sans-serif; margin: 0; background: #0f1115; color: #e6e6e6; }
.wrap { max-width: 760px; margin: 0 auto; padding: 40px 20px; }
h1 { font-size: 28px; }
.btn { display: inline-block; background: #4f7cff; color: #fff; padding: 12px 20px;
  border: none; border-radius: 8px; text-decoration: none; font-size: 15px; cursor: pointer; }
.btn[disabled], .btn.disabled { background: #444; cursor: not-allowed; }
.card { background: #171a21; border: 1px solid #262a34; border-radius: 12px; padding: 24px; margin-top: 20px; }
label { display: block; margin: 14px 0 6px; }
input { width: 100%; padding: 10px; border-radius: 8px; border: 1px solid #333; background: #0f1115; color: #fff; }
.err { color: #ff6b6b; margin-top: 12px; min-height: 18px; }
.badge { padding: 2px 10px; border-radius: 999px; font-size: 13px; }
.badge.ok { background: #14361f; color: #5ce08a; }
.badge.bad { background: #3a1618; color: #ff8a8a; }