.vs1-tfa { position: fixed; inset: 0; z-index: 100000; display: flex; align-items: center; justify-content: center; padding: 16px; background: rgba(10, 26, 36, .55); }
.vs1-tfa-card { width: 100%; max-width: 440px; max-height: calc(100vh - 32px); overflow-y: auto; box-sizing: border-box; padding: 2rem 1.75rem 1.5rem; background: var(--dm-surface, #ffffff); border: 1px solid var(--dm-border, #e3e6f0); border-radius: 0.35rem; box-shadow: 0 18px 48px rgba(10, 26, 36, .28); text-align: center; font-size: 1rem; line-height: 1.5; }
.vs1-tfa-logo { display: block; width: 150px; height: auto; margin: 0 auto 1.25rem; }
.vs1-tfa-title { margin: 0 0 0.5rem; font-size: 1.25rem; font-weight: 700; line-height: 1.2; }
.vs1-tfa-prompt { margin: 0 0 1.5rem; }
.vs1-tfa-prompt strong { overflow-wrap: anywhere; }
.vs1-tfa-digits { display: flex; justify-content: center; gap: 0.5rem; margin: 0 0 1rem; }
.vs1-tfa-digit { width: 3rem; height: 3.5rem; box-sizing: border-box; padding: 0; text-align: center; font-size: 1.75rem; font-weight: 700; background: var(--dm-field-bg, #ffffff); border: 1px solid var(--dm-border-2, #d1d3e2); border-radius: 0.35rem; outline: none; transition: border-color .15s ease, box-shadow .15s ease; }
.vs1-tfa-text { display: block; width: 100%; height: 3.25rem; box-sizing: border-box; margin: 0 0 1rem; padding: 0 0.75rem; text-align: center; font-size: 1.25rem; letter-spacing: 0.12em; text-transform: uppercase; background: var(--dm-field-bg, #ffffff); border: 1px solid var(--dm-border-2, #d1d3e2); border-radius: 0.35rem; outline: none; transition: border-color .15s ease, box-shadow .15s ease; }
.vs1-tfa-digit:focus, .vs1-tfa-text:focus { border-color: #00a3d3; box-shadow: 0 0 0 0.15rem rgba(0, 163, 211, .35); }
.vs1-tfa.is-error .vs1-tfa-digit, .vs1-tfa.is-error .vs1-tfa-text { border-color: #e74a3b; }
.vs1-tfa-digit:disabled, .vs1-tfa-text:disabled { opacity: .6; }
.vs1-tfa-msg { margin: 0 0 1rem; padding: 0.625rem 0.875rem; border-radius: 0.35rem; border: 1px solid rgba(231, 74, 59, .45); background: rgba(231, 74, 59, .08); }
.vs1-tfa-msg.is-ok { border-color: rgba(28, 200, 138, .5); background: rgba(28, 200, 138, .1); }
.vs1-tfa-msg[hidden] { display: none; }
.vs1-tfa-remember { display: inline-block; margin: 0 0 1.25rem; text-align: left; }
.vs1-tfa-remember .custom-control-label { cursor: pointer; }
.vs1-tfa-verify { display: block; width: 100%; height: 3rem; font-size: 1rem; font-weight: 700; border-radius: 0.35rem; }
.vs1-tfa-help { margin: 1.5rem 0 0; }
.vs1-tfa-help[hidden] { display: none; }
.vs1-tfa-more { display: inline-flex; align-items: center; gap: 0.5rem; }
.vs1-tfa-more::after { content: ''; width: 0.45rem; height: 0.45rem; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: translateY(-0.15rem) rotate(45deg); transition: transform .15s ease; }
.vs1-tfa-more.is-open::after { transform: translateY(0.1rem) rotate(-135deg); }
.vs1-tfa-options { display: flex; flex-direction: column; align-items: center; gap: 0.625rem; margin: 0.875rem 0 0; padding: 0.875rem 1rem; background: var(--dm-surface-2, #f8f9fc); border: 1px solid var(--dm-border, #e3e6f0); border-radius: 0.35rem; }
.vs1-tfa-options[hidden] { display: none; }
.vs1-tfa-link { padding: 0; background: none; border: 0; font-size: 1rem; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; color: inherit; }
.vs1-tfa-link:disabled { text-decoration: none; opacity: .6; cursor: default; }
.vs1-tfa-link:focus-visible { outline: 2px solid #00a3d3; outline-offset: 2px; border-radius: 0.2rem; }
.vs1-tfa-back { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--dm-border, #e3e6f0); }
@media (max-width: 400px) {
  .vs1-tfa-card { padding: 1.5rem 1rem 1.25rem; }
  .vs1-tfa-digits { gap: 0.375rem; }
  .vs1-tfa-digit { width: 2.625rem; height: 3.25rem; }
}