.sta-shell {
  --sta-accent: #d83b70;
  --sta-ink: #243040;
  --sta-muted: #667085;
  --sta-line: #dfe4ea;
  --sta-soft: #f7f8fa;
  width: min(100%, 660px);
  margin: 28px auto;
  color: var(--sta-ink);
  font-family: inherit;
}

.sta-shell *, .sta-shell *::before, .sta-shell *::after { box-sizing: border-box; }

.sta-card {
  padding: clamp(24px, 5vw, 44px);
  border: 1px solid var(--sta-line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(31, 42, 55, .09);
}

.sta-card__intro { margin-bottom: 26px; }
.sta-card__intro h2, .sta-card h2 { margin: 0 0 8px; color: var(--sta-ink); font-size: clamp(26px, 4vw, 34px); line-height: 1.15; }
.sta-card__intro p, .sta-card p { margin: 0; color: var(--sta-muted); line-height: 1.65; }
.sta-card--centred { text-align: center; }

.sta-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 0 0 14px; padding: 5px; border-radius: 13px; background: #eef1f4; }
.sta-shell .sta-tab { padding: 12px 16px; border: 0 !important; border-radius: 9px; background: transparent; color: var(--sta-muted); font: inherit; font-weight: 700; cursor: pointer; }
.sta-tab.is-active { background: #fff; color: var(--sta-ink); box-shadow: 0 2px 8px rgba(31, 42, 55, .08); }
.sta-panel { display: none; }
.sta-panel.is-active { display: block; }

.sta-form { display: grid; gap: 18px; }
.sta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sta-field { display: grid; gap: 8px; color: var(--sta-ink); font-weight: 650; }
.sta-field small { color: var(--sta-muted); font-size: 13px; font-weight: 400; }
.sta-field input { width: 100%; min-height: 50px; padding: 12px 14px; border: 1px solid #cfd5dc; border-radius: 10px; background: #fff; color: var(--sta-ink); font: inherit; outline: none; transition: border-color .15s, box-shadow .15s; }
.sta-field input:focus { border-color: var(--sta-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--sta-accent) 18%, transparent); }
.sta-password { position: relative; display: block; }
.sta-password input { padding-right: 124px; }
.sta-shell .sta-password__toggle { position: absolute; top: 50%; right: 42px; padding: 7px 8px; border: 0 !important; background: transparent !important; color: var(--sta-accent) !important; font: inherit; font-size: 13px; font-weight: 700; transform: translateY(-50%); cursor: pointer; }
.sta-form__row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.sta-check { display: flex; align-items: flex-start; gap: 9px; color: var(--sta-muted); font-size: 14px; line-height: 1.5; }
.sta-check input { width: 17px; height: 17px; margin: 2px 0 0; accent-color: var(--sta-accent); }
.sta-shell a { color: var(--sta-accent); }
.sta-shell .sta-button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 13px 22px; border: 1px solid var(--sta-accent) !important; border-radius: 10px; background: var(--sta-accent) !important; color: #fff !important; font: inherit; font-weight: 750; text-decoration: none !important; cursor: pointer; transition: transform .15s, filter .15s; }
.sta-button:hover { filter: brightness(.92); transform: translateY(-1px); }
.sta-shell .sta-button--secondary { background: #fff !important; color: var(--sta-accent) !important; }
.sta-button:focus-visible, .sta-tab:focus-visible, .sta-password__toggle:focus-visible { outline: 3px solid color-mix(in srgb, var(--sta-accent) 35%, transparent); outline-offset: 2px; }

.sta-resend { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--sta-line); color: var(--sta-muted); }
.sta-resend summary { color: var(--sta-accent); font-weight: 700; cursor: pointer; }
.sta-form--compact { margin-top: 16px; }

.sta-notice { margin: 0 0 14px; padding: 14px 16px; border: 1px solid; border-radius: 11px; line-height: 1.55; }
.sta-notice--success { border-color: #9fd4b2; background: #eefaf2; color: #17643a; }
.sta-notice--error { border-color: #edb2b2; background: #fff2f2; color: #8f2424; }
.sta-trap { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.cf-turnstile { min-height: 65px; }

@media (max-width: 560px) {
  .sta-shell { margin: 16px auto; }
  .sta-card { padding: 24px 19px; border-radius: 14px; }
  .sta-grid { grid-template-columns: 1fr; }
  .sta-form__row { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .sta-shell * { scroll-behavior: auto !important; transition: none !important; }
}