/* ============================================================
   buy_physical_item.css
   實體周邊商品購買頁面樣式（琥珀金軌道主題）
   覆寫 buy_item.css 基底 + 多卡片佈局 + 步驟進度指示器
   ============================================================ */


/* ── Design Tokens（amber 軌道） ────────────────────────────── */
:root {
  --physical-primary:       #D97706;
  --physical-secondary:     #FCD34D;
  --physical-glow:          rgba(217, 119, 6, 0.35);
  --physical-glow-soft:     rgba(217, 119, 6, 0.15);
  --physical-surface:       rgba(217, 119, 6, 0.06);
  --physical-surface-hover: rgba(217, 119, 6, 0.12);
  --physical-border:        rgba(217, 119, 6, 0.30);
  --physical-border-hover:  rgba(217, 119, 6, 0.55);
  --physical-gradient:      linear-gradient(135deg, #D97706 0%, #F59E0B 100%);
  /* 覆蓋 buy_item.css 的 virtual focus 色 */
  --virtual-primary:        #D97706;
  --virtual-secondary:      #FCD34D;
  --virtual-glow-soft:      rgba(217, 119, 6, 0.15);
  --virtual-border:         rgba(217, 119, 6, 0.30);
  --virtual-border-hover:   rgba(217, 119, 6, 0.55);
  --surface-glass:          rgba(255, 255, 255, 0.05);
  --border-subtle:          rgba(255, 255, 255, 0.08);
  --border-mid:             rgba(255, 255, 255, 0.12);
  --text-primary:           #ecf0f1;
  --text-secondary:         #bdc3c7;
  --text-muted:             #95a5a6;
  --color-success:          #2ecc71;
  --ease-smooth:            cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px; --radius-md: 12px; --radius-lg: 16px; --radius-pill: 24px;
}

/* ── Grid Layout Override ────────────────────────────────── */
.product-container {
  grid-template-areas: none;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto;
  align-items: start;
}

/* ── Product Showcase — Sticky ────────────────────────────── */
.product-showcase {
  grid-area: auto;
  position: sticky;
  top: 100px;
  align-self: start;
  animation: slideInLeft 0.5s ease-out 0.05s both;
  will-change: transform, opacity;
}

/* ── 右欄容器 ─────────────────────────────────────────────── */
.physical-right-column {
  grid-column: 2;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.physical-right-column form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ── Calculation Card Override ──────────────────────────── */
.calculation-card {
  grid-area: auto;
  animation: slideInDown 0.5s ease-out 0.1s both;
  will-change: transform, opacity;
}

/* ── 卡片共用樣式 ─────────────────────────────────────────── */
.physical-card {
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow:
    0 20px 60px rgba(0,0,0,0.4),
    0 0 0 1px var(--border-subtle),
    inset 0 1px 0 rgba(255,255,255,0.1);
  will-change: transform, opacity;
}

/* 卡片標題 */
.physical-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 20px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

/* 卡片標題 icon 統一用 muted 色 */
.physical-card-title i { color: var(--text-muted); }

/* ── 卡片入場動畫 ─────────────────────────────────────────── */
@keyframes physicalSlideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.variant-card  { animation: physicalSlideUp 0.5s ease-out 0.15s both; }
.identity-card { animation: physicalSlideUp 0.5s ease-out 0.2s both; }
.shipping-card { animation: physicalSlideUp 0.5s ease-out 0.25s both; }
.payment-card  { animation: physicalSlideUp 0.5s ease-out 0.3s both; }

/* 返回按鈕動畫加速 */
.back-btn { animation: slideInLeft 0.4s ease-out 0.15s both !important; }

/* ── 卡片內表單間距 ──────────────────────────────────────── */
.physical-card .form-group { margin-bottom: 20px; }
.physical-card .form-group:last-child { margin-bottom: 0; }

/* ── 款式選擇器 ──────────── */
.variant-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
}

.variant-btn {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-mid);
  background: var(--surface-glass);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  transition: all 250ms var(--ease-smooth);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.variant-btn .variant-btn-name {
  line-height: 1.3;
}

.variant-btn:hover:not(.out-of-stock) {
  border-color: rgba(243,156,18,0.35);
  background: rgba(243,156,18,0.06);
  color: var(--text-primary);
}

/* .selected 由 JS 動態設定 */
.variant-btn.selected {
  border-color: rgba(243,156,18,0.5);
  background: rgba(243,156,18,0.08);
  color: #ecf0f1;
  font-weight: 700;
  box-shadow: 0 0 0 1px rgba(243,156,18,0.2);
}

/* .out-of-stock 由 JS 動態設定 */
.variant-btn.out-of-stock {
  opacity: 0.42;
  cursor: not-allowed;
  color: #888;
}
.variant-btn.out-of-stock .variant-btn-name {
  text-decoration: line-through;
}

/* .stock-badge 由 JS 動態插入 */
.variant-btn .stock-badge {
  display: block;
  font-size: 0.68rem;
  margin-top: 4px;
  color: var(--text-muted);
  font-weight: 400;
}

.variant-btn.selected .stock-badge { color: var(--physical-secondary); }
.variant-btn.out-of-stock .stock-badge { color: #e74c3c; text-decoration: none; }

.variant-loading {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 12px 0;
}
.variant-loading i { margin-right: 6px; }

/* ── 物流方式切換（amber 主題） ─────────────────────────── */
.shipping-method-group { margin-bottom: 20px; }

.shipping-method-options {
  display: flex;
  gap: 12px;
}

.shipping-method-radio { display: none; }

.shipping-method-label {
  flex: 1;
  text-align: center;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-mid);
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.92rem;
  transition: all 250ms var(--ease-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
}

.shipping-method-label:hover {
  border-color: var(--physical-border);
  background: var(--physical-surface);
}

.shipping-method-radio:checked + .shipping-method-label {
  border-color: rgba(255,255,255,0.30);
  background: rgba(255,255,255,0.08);
  color: var(--text-primary);
  font-weight: 600;
}

/* ── 宅配地址區塊（JS 依賴 display:none / .active / display:block）── */
.address-group { display: none; }
.address-group.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.address-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

@media (max-width: 480px) { .address-row { grid-template-columns: 1fr; } }

/* ── 7-11 門市選擇區塊（JS 依賴 display:none / .active / display:block）── */
.cvs-group { display: none; }
.cvs-group.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* .visible 由 JS 控制 */
.cvs-selected-info {
  display: none;
  background: rgba(46,204,113,0.1);
  border: 1px solid rgba(46,204,113,0.25);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-top: 12px;
}
.cvs-selected-info.visible { display: block; }

.cvs-selected-info .store-name {
  font-weight: 600;
  color: var(--color-success);
  font-size: 0.95rem;
}
.cvs-selected-info .store-address {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 4px;
}
.cvs-selected-info .store-change {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--physical-secondary);
  cursor: pointer;
  text-decoration: underline;
}
.cvs-selected-info .store-change:hover { color: #fde68a; }

/* select-store-btn：amber 主題 */
.select-store-btn {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-md);
  border: 1px dashed var(--physical-border);
  background: var(--physical-surface);
  color: var(--physical-secondary);
  cursor: pointer;
  font-size: 0.92rem;
  transition: all 250ms var(--ease-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
}

.select-store-btn:hover {
  border-color: var(--physical-primary);
  background: var(--physical-surface-hover);
  color: white;
  box-shadow: 0 4px 12px var(--physical-glow-soft);
}

/* ── 7-11 門市搜尋 Modal ─────────────────────────────────── */
/* .store-modal-overlay：JS 依賴 display:none 和 .open = display:flex */
.store-modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.72);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}
.store-modal-overlay.open { display: flex; }

.store-modal {
  background: #1e1e2e;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  width: 520px;
  max-width: 92vw;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from { transform: translateY(30px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.store-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.store-modal-header h3 {
  margin: 0;
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
}

.store-modal-close {
  background: none;
  border: none;
  color: #888;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all 200ms ease;
  min-width: 44px; min-height: 44px;
  display: flex; align-items: center; justify-content: center;
}
.store-modal-close:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

.store-modal-body {
  padding: 16px 24px;
  overflow-y: auto;
  flex: 1;
}

.store-search-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.store-search-keyword {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}
.store-search-keyword input { flex: 1; }
.store-search-keyword .search-btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--physical-gradient);
  color: #fff;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 200ms ease;
  white-space: nowrap;
  min-height: 44px;
}
.store-search-keyword .search-btn:hover {
  box-shadow: 0 4px 12px var(--physical-glow-soft);
  transform: translateY(-1px);
}
.store-search-keyword .search-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.store-results {
  max-height: 340px;
  overflow-y: auto;
}
.store-results::-webkit-scrollbar { width: 6px; }
.store-results::-webkit-scrollbar-track { background: rgba(255,255,255,0.03); border-radius: 3px; }
.store-results::-webkit-scrollbar-thumb { background: var(--physical-border); border-radius: 3px; }

/* .store-result-item / .store-item-name / .store-item-address：JS 依賴 */
.store-result-item {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 200ms ease;
  background: rgba(255,255,255,0.02);
}
.store-result-item:hover {
  border-color: var(--physical-border);
  background: var(--physical-surface);
}
.store-result-item .store-item-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.92rem;
  margin-bottom: 3px;
}
.store-result-item .store-item-address {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* .store-results-empty / .store-results-loading：JS 依賴 */
.store-results-empty, .store-results-loading {
  text-align: center;
  color: #888;
  padding: 30px 0;
  font-size: 0.9rem;
}

/* ── 實體商品發放區塊（amber 覆寫） ─────────────────────── */
.product-features.physical {
  background: linear-gradient(145deg, var(--physical-surface), rgba(217,119,6,0.03));
  border-color: var(--physical-border);
}
.product-features.physical h4 {
  color: var(--physical-secondary);
}

/* ── 表單內 select 統一樣式 ──────────────────────────────── */
.form-input-select {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-sm);
  color: #e0e0e0;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.form-input-select:focus {
  outline: none;
  border-color: var(--physical-primary);
  background-color: rgba(255,255,255,0.09);
  box-shadow: 0 0 0 2px var(--physical-glow-soft);
}
.form-input-select option { background: #1e1e2e; color: #e0e0e0; }

/* ── Modal 內表單樣式 ─────────────────────────────────────── */
.store-modal .form-input,
.store-modal .form-input-select { font-size: 15px; }

/* ── 動畫 ─────────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── 購買模式切換 ──────────────────────────────────────── */
.purchase-mode-toggle {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-mid);
  background: rgba(255,255,255,0.03);
}

.mode-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 12px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 300ms var(--ease-smooth);
  position: relative;
}

.mode-btn:first-child { border-right: 1px solid var(--border-mid); }

.mode-btn:hover:not(.active) {
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
}

.mode-btn.active {
  background: rgba(255,255,255,0.08);
  color: var(--text-primary);
}

.mode-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%; right: 20%;
  height: 2px;
  background: var(--physical-gradient);
  border-radius: 1px;
}

.mode-btn i { font-size: 1.1rem; margin-bottom: 2px; }
.mode-btn .mode-label { font-size: 0.88rem; font-weight: 600; }

.mode-btn[data-mode="points"].active {
  background: rgba(245, 158, 11, 0.08);
}
.mode-btn[data-mode="points"].active::after {
  background: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%);
}

/* ── 點數模式資訊卡 ────────────────────────────────────── */
.points-mode-info { margin-bottom: 24px; }

.points-balance-display {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: linear-gradient(145deg, rgba(245,158,11,0.08), rgba(251,191,36,0.04));
  border: 1px solid rgba(245,158,11,0.25);
  border-radius: var(--radius-lg);
}

.balance-icon { font-size: 1.8rem; color: #F59E0B; flex-shrink: 0; }
.balance-info { flex: 1; }
.balance-label { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 2px; }
.balance-value { font-size: 1.5rem; font-weight: 800; color: #FBBF24; }
.balance-cost { text-align: right; flex-shrink: 0; }
.balance-cost span { display: block; font-size: 0.75rem; color: var(--text-muted); }
.balance-cost strong { font-size: 1rem; color: var(--physical-secondary); }

/* 登入提示 */
.points-login-required {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: rgba(239,68,68,0.06);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-lg);
}

.login-icon { font-size: 1.5rem; color: #EF4444; flex-shrink: 0; }
.login-message p { color: var(--text-secondary); margin: 0 0 10px 0; font-size: 0.9rem; }

.points-login-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: rgba(239,68,68,0.15);
  border: 1px solid rgba(239,68,68,0.3);
  color: #FCA5A5;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 250ms var(--ease-smooth);
}
.points-login-btn:hover { background: rgba(239,68,68,0.25); color: #fff; }

/* ── 點數兌換免責聲明 ────────────────────────────────────── */
.points-disclaimer {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.15);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}
.points-disclaimer > i { color: #F59E0B; margin-top: 2px; flex-shrink: 0; }
.points-disclaimer p { margin: 0; font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }
.points-disclaimer p + p { margin-top: 4px; }

/* ── 點數兌換按鈕 ──────────────────────────────────────── */
.points-redeem-btn {
  background: linear-gradient(135deg, #D97706 0%, #F59E0B 100%) !important;
  border: none !important;
}
.points-redeem-btn:hover:not(:disabled) {
  box-shadow: 0 8px 30px rgba(245,158,11,0.35) !important;
  transform: translateY(-2px);
}
.points-redeem-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ── 物流按鈕內運費標示 ──────────────────────────────── */
.shipping-method-label {
  flex-direction: column;
}

.shipping-method-name {
  font-size: 0.92rem;
}

.shipping-method-fee {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 2px;
}

.shipping-method-radio:checked + .shipping-method-label .shipping-method-fee {
  color: var(--physical-secondary);
}

.shipping-method-fee.free {
  color: #2ecc71 !important;
}

/* ── 付款前總額明細 ──────────────────────────────────── */
.payment-total-breakdown {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 4px;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.breakdown-row.breakdown-total {
  margin-top: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--physical-secondary);
}

.points-breakdown {
  border-color: rgba(251, 191, 36, 0.2);
  background: rgba(251, 191, 36, 0.04);
}
.points-breakdown .breakdown-row.breakdown-total {
  color: #FBBF24;
}

/* ── 海外配送地址 ────────────────────────────────────── */
.intl-address-group { display: none; }
.intl-address-group.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.intl-shipping-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.15);
  border-radius: var(--radius-sm);
  margin-top: 8px;
}
.intl-shipping-note i { color: #F59E0B; margin-top: 2px; flex-shrink: 0; }
.intl-shipping-note span { font-size: 0.8rem; color: var(--text-muted); }

/* ── 左側展示 — 點數價格行 ─────────────────────────────── */
/* 單價 & 點數並列，不需分隔線 */
.product-price-row {
  border-top: none;
  margin-bottom: 8px;
  padding: 8px 0;
}
.product-price-row + .points-price-row {
  margin-bottom: 28px;
}
.product-price-row:last-of-type {
  margin-bottom: 28px;
}
.points-price-row { border-top: none; }
.points-price-row .price-value.points { color: #FBBF24; font-size: 1.1rem; }
.points-price-row .price-label i { color: #F59E0B; }

/* ── 響應式調整 ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .product-container { grid-template-columns: 1fr; }

  .product-showcase {
    position: static;
    max-height: none;
    overflow-y: visible;
    grid-area: auto;
  }

  .physical-right-column { grid-column: auto; gap: 20px; }
  .physical-right-column form { gap: 20px; }
  .physical-card { padding: 20px; }
  .calculation-card { grid-area: auto; }

  .shipping-method-options { flex-direction: column; gap: 8px; }

  .store-modal { max-height: 90vh; border-radius: var(--radius-md); }
  .store-search-row { grid-template-columns: 1fr; }

  .variant-buttons { gap: 8px; }
  .variant-btn { padding: 9px 16px; font-size: 0.85rem; }

  .purchase-mode-toggle { margin-bottom: 20px; }
  .mode-btn { padding: 12px 8px; }

  .points-balance-display { flex-wrap: wrap; gap: 12px; }
  .balance-cost {
    width: 100%;
    text-align: left;
    padding-top: 8px;
    border-top: 1px solid rgba(245,158,11,0.15);
  }

}