.support-block {
  position: relative;
  overflow: hidden;
  margin: 28px 0;
  border: 1px solid rgba(114, 86, 190, 0.18);
  border-radius: 16px;
  background:
    radial-gradient(120% 90% at 10% -10%, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0) 45%),
    radial-gradient(90% 85% at 100% 0%, rgba(235, 219, 255, 0.4), rgba(235, 219, 255, 0) 60%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.99), rgba(249, 243, 255, 0.97) 55%, rgba(241, 234, 252, 0.96));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    0 10px 30px rgba(60, 40, 110, 0.08);
  padding: 18px;
}

.support-block::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 16% 18%, rgba(255, 255, 255, 0.5), transparent 28%),
    radial-gradient(circle at 84% 22%, rgba(255, 255, 255, 0.35), transparent 24%),
    radial-gradient(circle at 65% 85%, rgba(240, 228, 255, 0.42), transparent 32%);
}

.support-block > * {
  position: relative;
  z-index: 1;
}

.support-block__title {
  margin: 0 0 8px;
  font-size: 1.15rem;
  color: #2d1f56;
}

.support-block__text {
  margin: 0;
  color: #4b416a;
  line-height: 1.6;
}

.support-block__actions {
  margin-top: 16px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
}

.support-block__option {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.support-block__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  appearance: none;
  border: 1px solid rgba(94, 63, 173, 0.24);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.94);
  color: #3b266f;
  padding: 12px 13px;
  cursor: pointer;
  transition: border-color 0.14s ease, background-color 0.14s ease;
}

.support-block__btn-amount {
  font-size: 1.06rem;
  font-weight: 620;
  line-height: 1.2;
  text-align: center;
}

.support-block__hint {
  margin: 0;
  padding: 0 3px;
  font-size: 0.78rem;
  line-height: 1.36;
  font-weight: 460;
  color: rgba(59, 38, 111, 0.82);
  letter-spacing: 0.005em;
  text-align: center;
}

.support-block__btn:hover,
.support-block__btn:focus-visible {
  border-color: rgba(94, 63, 173, 0.4);
  background: rgba(255, 255, 255, 0.98);
}

.support-block__btn[disabled] {
  opacity: 0.6;
  cursor: progress;
}

.support-block__error {
  color: #a23434;
  margin-top: 10px;
  font-size: 0.92rem;
}

.support-block__custom-entry {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
}

.support-block__custom-input {
  flex: 1;
  min-width: 0;
  border: 1px solid rgba(94, 63, 173, 0.24);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
}

.support-block__custom-submit {
  appearance: none;
  border: 1px solid rgba(94, 63, 173, 0.35);
  border-radius: 10px;
  background: rgba(94, 63, 173, 0.1);
  color: #3b266f;
  padding: 10px 12px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.support-block__custom-help {
  margin: 6px 0 0;
  color: #4b416a;
  font-size: 0.84rem;
}

.support-block--dark {
  border: 1px solid rgba(229, 200, 140, 0.22);
  background:
    radial-gradient(120% 95% at 15% -10%, rgba(255, 236, 199, 0.18), rgba(255, 236, 199, 0) 50%),
    radial-gradient(100% 95% at 100% 0%, rgba(128, 95, 184, 0.2), rgba(128, 95, 184, 0) 56%),
    linear-gradient(165deg, rgba(20, 17, 29, 0.96), rgba(14, 13, 22, 0.96) 52%, rgba(11, 11, 18, 0.98));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 16px 34px rgba(0, 0, 0, 0.35);
}

.support-block--dark::before {
  background:
    radial-gradient(circle at 20% 16%, rgba(255, 227, 168, 0.22), transparent 30%),
    radial-gradient(circle at 78% 20%, rgba(182, 156, 231, 0.16), transparent 26%),
    radial-gradient(circle at 58% 84%, rgba(255, 235, 196, 0.1), transparent 34%);
}

.support-block--dark .support-block__title {
  color: #f7e9cb;
}

.support-block--dark .support-block__text {
  color: rgba(243, 235, 219, 0.9);
}

.support-block--dark .support-block__btn {
  border-color: rgba(229, 200, 140, 0.24);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.01)),
    rgba(33, 29, 49, 0.78);
  color: #f8ead0;
}

.support-block--dark .support-block__hint {
  color: rgba(239, 223, 189, 0.86);
}

.support-block--dark .support-block__btn:hover,
.support-block--dark .support-block__btn:focus-visible {
  border-color: rgba(247, 216, 150, 0.44);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.02)),
    rgba(39, 34, 57, 0.88);
}

.support-block--dark .support-block__error {
  color: #ffbdbd;
}

.support-block--dark .support-block__custom-input {
  border-color: rgba(229, 200, 140, 0.3);
  background: rgba(27, 23, 41, 0.9);
  color: #f8ead0;
}

.support-block--dark .support-block__custom-submit {
  border-color: rgba(247, 216, 150, 0.45);
  background: rgba(247, 216, 150, 0.12);
  color: #f8ead0;
}

.support-block--dark .support-block__custom-help {
  color: rgba(243, 235, 219, 0.9);
}

.support-block--hidden {
  display: none;
}

@media (max-width: 460px) {
  .support-block__actions {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .support-block__btn {
    padding: 11px 12px 10px;
  }

  .support-block__btn-amount {
    font-size: 1.02rem;
  }

  .support-block__custom-entry {
    flex-direction: column;
    align-items: stretch;
  }
}

.support-block .support-block__btn-amount {
  display: block !important;
  width: 100% !important;
  white-space: normal !important;
}

.support-block .support-block__hint {
  display: block !important;
  width: 100% !important;
  margin-top: 0 !important;
  font-size: 0.78rem !important;
  line-height: 1.36 !important;
  white-space: normal !important;
  overflow: visible !important;
  text-overflow: clip !important;
  opacity: 1 !important;
  visibility: visible !important;
}