.btn-primary,
.btn-secondary,
.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border: 0;
  border-radius: 999px;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition), opacity var(--transition), border-color var(--transition), background var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.btn-primary,
.btn-submit {
  background: linear-gradient(180deg, #22c7d7, var(--primary));
  box-shadow: inset 0 2px 1px rgba(255, 255, 255, 0.35), 0 14px 30px rgba(0, 45, 58, 0.28);
  color: #fff;
}

.btn-secondary {
  border: 1px solid var(--surface-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 600;
}

.btn-primary:hover,
.btn-primary:focus-visible,
.btn-secondary:hover,
.btn-secondary:focus-visible,
.btn-submit:hover,
.btn-submit:focus-visible {
  filter: brightness(1.08);
  transform: translateY(-1px);
  outline: none;
}

.btn-primary:hover,
.btn-primary:focus-visible,
.btn-submit:hover,
.btn-submit:focus-visible {
  box-shadow: inset 0 2px 1px rgba(255, 255, 255, 0.38), 0 17px 34px rgba(0, 45, 58, 0.34);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: rgba(16, 183, 201, 0.48);
  background: rgba(255, 255, 255, 0.08);
}

.btn-small {
  min-height: 48px;
  padding-inline: 20px;
}

.btn-submit {
  width: 100%;
  min-height: 56px;
}

.btn-primary:disabled,
.btn-secondary:disabled,
.btn-submit:disabled,
.btn-primary[aria-disabled="true"],
.btn-secondary[aria-disabled="true"],
.btn-submit[aria-disabled="true"] {
  cursor: not-allowed;
  filter: saturate(0.7);
  opacity: 0.65;
  transform: none;
}

@media (max-width: 640px) {
  .btn-primary,
  .btn-secondary,
  .btn-small {
    min-height: 40px;
    padding-inline: 14px;
    font-size: 0.85rem;
  }
}