/* 捐款 Modal 共用樣式 — 供 donate.html 與 campaign_detail.html 共用 */

.form-card { margin-bottom: 52px; }
.form-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary-light);
  padding-bottom: 12px;
  position: relative;
}
.form-card-header::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 60px; height: 2px;
  background: var(--color-primary);
}
.form-card-header i { font-size: 1.4rem; }
.form-card-header h2 { font-size: 1.4rem; font-weight: 700; margin: 0; color: var(--color-text-primary); }

.amt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  align-items: stretch;
  gap: 12px;
  margin-bottom: 20px;
}
.amt-option { position: relative; cursor: pointer; }
.amt-option input { position: absolute; opacity: 0; }
.amt-check {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 8px;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 1.1rem;
  font-weight: 700;
  transition: all 0.2s;
  color: var(--color-text-secondary);
}
.amt-sub {
  font-size: 0.85rem;
  font-weight: 400;
  margin-top: 4px;
  color: var(--color-text-secondary);
}
.amt-option input:checked + .amt-check .amt-sub {
  color: var(--color-text-secondary);
  opacity: 1;
}
.amt-option input:checked + .amt-check {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary-text);
}
.custom-expand {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  visibility: hidden;
  transition: max-height 0.25s ease, opacity 0.2s ease, visibility 0s 0.25s;
}
.custom-expand.open {
  max-height: 80px;
  opacity: 1;
  visibility: visible;
  margin-top: 4px;
  margin-bottom: 4px;
  transition: max-height 0.25s ease, opacity 0.2s ease, visibility 0s 0s;
}
.custom-expand-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background: var(--color-surface);
  transition: border-color 0.2s;
}
.custom-expand-inner:focus-within { border-color: var(--color-primary); }
.currency { font-weight: 700; color: var(--color-text-muted); margin-right: 8px; line-height: 1; }
.amt-input { border: none; padding: 0; width: 100%; height: 1.65rem; font-size: 1.1rem; font-weight: 700; line-height: 1.5; outline: none; background: transparent; -webkit-appearance: none; appearance: none; }
.amt-input::-webkit-outer-spin-button,
.amt-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.amt-input[type=number] { -moz-appearance: textfield; }

.toggle-options { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.toggle-label { cursor: pointer; display: flex; align-items: center; gap: 6px; font-size: 1.05rem; font-weight: 600; }
.freq-monthly-label { color: var(--color-primary-text); }
/* 推薦徽章：浮在「定期定額（每月）」文字正上方，左邊對齊文字開頭，不用色塊避免被誤讀成獨立按鈕 */
.label-text-wrap { position: relative; display: inline-block; }
.freq-badge {
  position: absolute;
  top: -20px;
  left: 0;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  color: var(--color-primary-text);
  font-size: 0.95rem;
  font-weight: 700;
}
.freq-badge__star {
  font-size: 0.9rem;
}

.anon-toggle {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: #fff;
  border-radius: var(--border-radius-sm);
}

.period-selector {
  background: #fff;
  border-radius: var(--border-radius-sm);
  padding: 20px 24px;
  margin-top: 20px;
}
.period-selector__label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  margin: 0 0 14px;
}
.period-options { display: flex; gap: 8px; flex-wrap: wrap; }
.period-option { cursor: pointer; display: flex; align-items: center; }
.period-option input { position: absolute; opacity: 0; width: 0; }
.period-option span {
  display: inline-block;
  padding: 8px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: 20px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: all .2s;
}
.period-option input:checked + span {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary-text);
}
.period-selector__note {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 16px 0 0;
}

.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 1.1rem; font-weight: 600; color: var(--color-text-secondary); margin-bottom: 8px; }
.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  transition: all 0.2s;
  font-size: 1.1rem;
  box-sizing: border-box;
}
.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(197,58,47,0.1);
}
#user-name::placeholder,
#user-tel::placeholder {
  color: var(--color-text-muted);
}
#user-email::placeholder,
#user-id::placeholder {
  color: #c0bdb8;
}

.submit-btn {
  display: block;
  width: 100%;
  padding: 18px;
  background: var(--color-primary-text);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 1.3rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  margin-top: 40px;
}
.submit-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(197,58,47,0.3); }
.submit-btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

.error-msg {
  display: none;
  background: #fee2e2;
  border: 1px solid #f87171;
  color: #991b1b;
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 24px;
  font-size: 1.05rem;
  font-weight: 500;
  align-items: center;
  gap: 8px;
}

.privacy-note {
  margin-top: 20px;
  padding: 14px 18px;
  background: #fff;
  border-radius: var(--border-radius-sm);
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  text-align: left;
  line-height: 1.7;
}
.field-hint {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}
.field-error {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-error);
  margin-top: 6px;
  display: none;
}
.privacy-note i { color: var(--color-primary); margin-right: 6px; }
.receipt-question { margin-bottom: 4px; }
.receipt-options { display: flex; flex-wrap: wrap; gap: 12px; }
#receipt-details-email, #receipt-details-paper { display: none; margin-top: 20px; }
#user-id { text-transform: uppercase; }
.label-opt { font-weight: 400; color: var(--color-text-muted); }

.donate-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.donate-modal {
  background: #fff;
  border-radius: 20px;
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px rgba(0,0,0,0.3);
  overflow: hidden;
}
.donate-modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.donate-modal__title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0;
}
/* 無勸募字號期間的統籌揭露 */
.donate-modal__note {
  font-size: .85rem;
  color: var(--color-text-muted);
  margin: 4px 0 0;
}
.donate-modal__close {
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--color-text-muted);
  line-height: 1;
  padding: 0 4px;
  margin-left: 16px;
  flex-shrink: 0;
}
.donate-modal__close:hover { color: var(--color-text-primary); }
.donate-modal__body {
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 28px;
  flex: 1;
}
.donate-modal__body .donate-form {
  background: none;
  border: none;
  padding: 0;
  box-shadow: none;
}

@media (max-width: 768px) {
  .field-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .donate-modal-overlay { padding: 0; align-items: flex-end; }
  .donate-modal {
    max-height: 95vh;
    border-radius: 20px 20px 0 0;
    max-width: 100%;
  }
}
@media (max-width: 480px) {
  .form-card-header h2 { font-size: 1.2rem; }
  .form-card-header i { font-size: 1.15rem; }
  .amt-check { font-size: 1rem; padding: 12px 8px; }
  .period-option span { font-size: 1rem; padding: 7px 12px; }
  .submit-btn { font-size: 1.15rem; padding: 15px; }
  .form-card { margin-bottom: 28px; }
}