.gc-page {
  --gc-pink: #e50050;
  --gc-text: #141014;
  --gc-muted: #8a8580;
  --gc-border: #ece7e1;
  --gc-surface: #fbf8f4;
  min-height: 70vh;
  background: #fff;
  padding: 12px 16px 88px;
}

.gc-shell {
  max-width: 520px;
  margin: 0 auto;
}

.gc-header {
  display: flex;
  gap: 14px;
  align-items: center;
  margin: 8px 0 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gc-border);
}

.gc-header__avatar {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  object-fit: cover;
  background: var(--gc-surface);
  flex: 0 0 auto;
}

.gc-header__copy {
  min-width: 0;
}

.gc-header__eyebrow {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gc-pink);
}

.gc-header__title {
  margin: 4px 0 0;
  font-size: clamp(22px, 5vw, 28px);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--gc-text);
}

.gc-header__subtitle {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.4;
  color: var(--gc-muted);
}

.gc-form {
  display: grid;
  gap: 14px;
}

.gc-section {
  margin: 0;
  padding: 18px 16px;
  border: 1px solid var(--gc-border);
  border-radius: 18px;
  background: #fff;
}

.gc-section__title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 800;
  color: var(--gc-text);
}

.gc-section__hint {
  margin: -6px 0 14px;
  font-size: 13px;
  color: var(--gc-muted);
}

.gc-amounts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.gc-amount {
  cursor: pointer;
  flex: 1 1 calc(50% - 8px);
  min-width: 110px;
}

@media (min-width: 480px) {
  .gc-amount {
    flex: 1 1 calc(25% - 8px);
  }
}

.gc-amount input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.gc-amount span {
  display: grid;
  place-items: center;
  min-height: 48px;
  border: 1.5px solid var(--gc-border);
  border-radius: 999px;
  font-weight: 800;
  font-size: 15px;
  color: var(--gc-text);
  background: #fff;
  transition: border-color 0.15s, background 0.15s, color 0.15s, box-shadow 0.15s;
}

.gc-amount input:checked + span,
.gc-amount input:focus-visible + span {
  border-color: var(--gc-pink);
  background: rgba(229, 0, 80, 0.06);
  color: var(--gc-pink);
  box-shadow: 0 0 0 3px rgba(229, 0, 80, 0.12);
}

.gc-fields {
  display: grid;
  gap: 12px;
}

.gc-field {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: #504a46;
}

.gc-field em {
  font-style: normal;
  font-weight: 500;
  color: var(--gc-muted);
}

.gc-field input,
.gc-field textarea {
  width: 100%;
  border: 1.5px solid var(--gc-border);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  font-weight: 500;
  color: var(--gc-text);
  background: #fff;
}

.gc-field input::placeholder,
.gc-field textarea::placeholder {
  color: #b0aaa4;
}

.gc-field input:focus,
.gc-field textarea:focus {
  outline: none;
  border-color: var(--gc-pink);
  box-shadow: 0 0 0 3px rgba(229, 0, 80, 0.12);
}

.gc-stripe {
  min-height: 48px;
}

.gc-stripe-loading {
  padding: 12px 0;
  color: var(--gc-muted);
  font-size: 14px;
}

.gc-error {
  margin-top: 10px;
  color: #b42318;
  font-size: 13px;
  font-weight: 600;
}

.gc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.2px;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.gc-btn--primary {
  width: 100%;
  margin-top: 4px;
  background: var(--gc-pink);
  color: #fff;
  box-shadow: 0 10px 24px rgba(229, 0, 80, 0.22);
}

.gc-btn--primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.gc-btn--secondary {
  background: var(--gc-surface);
  color: var(--gc-text);
}

.gc-state {
  margin-top: 8px;
  padding: 28px 20px;
  border-radius: 18px;
  border: 1px solid var(--gc-border);
  background: #fff;
  text-align: center;
}

.gc-state h2 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--gc-text);
}

.gc-state p {
  color: var(--gc-muted);
  margin-bottom: 18px;
  font-size: 14px;
  line-height: 1.45;
}

@media (min-width: 768px) {
  .gc-page {
    padding-top: 28px;
  }
}