/* ==========================================================================
   paywall.css — 鎖頭、購物車抽屉、結帳、收據
   深淺色都吃 tokens.css 的變數，沒有寫死顏色
   ========================================================================== */

/* --- header 購物車鈕 ----------------------------------------------------- */

#cartBtn {
  position: relative;
}

#cartBtn.is-owned {
  color: var(--fgColor-success);
}

.Cart__badge {
  position: absolute;
  top: -2px;
  right: -2px;
  min-width: 15px;
  height: 15px;
  padding: 0 4px;
  border-radius: var(--borderRadius-full);
  background: var(--fgColor-danger);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  line-height: 15px;
  text-align: center;
}

/* --- 課程內容裡的鎖 ------------------------------------------------------ */

.Chapter__lock {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  color: var(--fgColor-muted);
}

/* 佔掉「完成」勾勾原本的位置，鎖定單元標不了完成 */
.Unit__lock {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
  color: var(--fgColor-muted);
}

.Chapter.is-locked .Chapter__progress {
  visibility: hidden;
}

.Unit.is-locked > .Unit__header {
  cursor: pointer;
}

.Unit.is-locked .Unit__title,
.Unit.is-locked .Unit__summary {
  color: var(--fgColor-muted);
}

/* 鎖定章節的招呼卡：擺在章節內容最上面 */
.PaywallGate {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--base-size-12);
  margin: var(--base-size-8) 0 var(--base-size-16);
  padding: var(--base-size-16);
  border: 1px solid var(--borderColor-default);
  border-radius: var(--borderRadius-medium);
  background: var(--bgColor-muted);
}

.PaywallGate__icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: var(--borderRadius-full);
  background: var(--bgColor-accent-muted);
  color: var(--fgColor-accent);
  flex: none;
}

.PaywallGate__main {
  flex: 1 1 220px;
  min-width: 0;
}

.PaywallGate__title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.PaywallGate__note {
  margin: 2px 0 0;
  color: var(--fgColor-muted);
  font-size: 12px;
}

/* --- 播放清單裡的鎖 ------------------------------------------------------ */

.PlaylistItem.is-locked {
  opacity: 0.55;
}

.PlaylistItem.is-locked .PlaylistItem__dur {
  color: var(--fgColor-muted);
}

/* --- 價格 ---------------------------------------------------------------- */

.Price {
  display: inline-flex;
  align-items: baseline;
  gap: var(--base-size-8);
  flex-wrap: wrap;
}

.Price__list {
  color: var(--fgColor-muted);
  font-size: 13px;
}

.Price__now {
  font-size: 18px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.Price__badge {
  align-self: center;
}

/* --- 對話框外框 ---------------------------------------------------------- */

.Paywall {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
}

.Paywall[hidden] {
  display: none;
}

.Paywall__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(1, 4, 9, 0.5);
  animation: pw-fade 0.15s ease-out;
}

.Paywall__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - var(--base-size-32));
  background: var(--bgColor-default);
  border: 1px solid var(--borderColor-default);
  border-radius: var(--borderRadius-large);
  box-shadow: var(--shadow-floating-small);
  overflow: hidden;
}

/* 購物車走右側抽屉，其餘置中 */
.Paywall[data-view="cart"] .Paywall__panel {
  margin: 0 0 0 auto;
  width: min(420px, 100vw);
  max-height: 100vh;
  border-radius: 0;
  border-width: 0 0 0 1px;
  animation: pw-slide 0.18s ease-out;
}

.Paywall:not([data-view="cart"]) .Paywall__panel {
  margin: auto;
  width: min(520px, calc(100vw - var(--base-size-32)));
  animation: pw-pop 0.18s ease-out;
}

@keyframes pw-fade {
  from { opacity: 0; }
}

@keyframes pw-slide {
  from { transform: translateX(24px); opacity: 0; }
}

@keyframes pw-pop {
  from { transform: scale(0.97) translateY(6px); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .Paywall__backdrop,
  .Paywall__panel {
    animation: none;
  }
}

.Paywall__head {
  display: flex;
  align-items: center;
  gap: var(--base-size-8);
  padding: var(--base-size-16);
  border-bottom: 1px solid var(--borderColor-muted);
}

.Paywall__icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: var(--borderRadius-full);
  background: var(--bgColor-accent-muted);
  color: var(--fgColor-accent);
  flex: none;
}

.Paywall__icon--ok {
  background: var(--bgColor-success-muted);
  color: var(--fgColor-success);
}

.Paywall__title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  flex: 1;
  min-width: 0;
}

.Paywall__body {
  padding: var(--base-size-16);
  overflow-y: auto;
}

.Paywall__lede {
  margin: 0 0 var(--base-size-12);
  color: var(--fgColor-muted);
  font-size: 13px;
  line-height: 1.6;
}

.Paywall__product {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--base-size-12);
  flex-wrap: wrap;
  padding: var(--base-size-12);
  border: 1px solid var(--borderColor-default);
  border-radius: var(--borderRadius-medium);
  background: var(--bgColor-muted);
}

.Paywall__productName {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

/* 誠實告知：這門課免費、劃掉的原價是虛構的 */
.Paywall__honesty {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  margin: var(--base-size-12) 0 0;
  color: var(--fgColor-muted);
  font-size: 12px;
  line-height: 1.6;
}

.Paywall__honesty svg {
  flex: none;
  margin-top: 3px;
}

.Paywall__foot {
  display: flex;
  gap: var(--base-size-8);
  padding: var(--base-size-12) var(--base-size-16);
  border-top: 1px solid var(--borderColor-muted);
  background: var(--bgColor-muted);
}

.Paywall__foot .btn-primary {
  flex: 1;
  justify-content: center;
}

/* --- 購物車內容 ---------------------------------------------------------- */

.CartList {
  margin: 0 0 var(--base-size-16);
  padding: 0;
  list-style: none;
}

/* 抽屉只有 420px，品名與價格擠在同一列會把說明壓成三行，所以讓價格換行 */
.CartItem {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px var(--base-size-8);
  padding: var(--base-size-12) 0;
  border-bottom: 1px solid var(--borderColor-muted);
}

.CartItem__main {
  flex: 1 1 100%;
  min-width: 0;
  display: grid;
  gap: 2px;
}

.CartItem .Price {
  flex: 1;
}

.CartItem__name {
  font-weight: 600;
}

.CartItem__note {
  color: var(--fgColor-muted);
  font-size: 12px;
}

.CartTotals {
  margin: 0;
  font-size: 13px;
}

.CartTotals > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--base-size-8);
  padding: 5px 0;
}

.CartTotals dt {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--fgColor-muted);
}

.CartTotals dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.CartTotals__discount dt,
.CartTotals__discount dd {
  color: var(--fgColor-danger);
}

.CartTotals__due {
  margin-top: 4px;
  padding-top: var(--base-size-8);
  border-top: 1px solid var(--borderColor-default);
  font-size: 15px;
}

.CartTotals__due dt {
  color: var(--fgColor-default);
  font-weight: 600;
}

.CartTotals__due dd {
  font-weight: 600;
}

/* --- 結帳表單 ------------------------------------------------------------ */

.Checkout {
  display: grid;
  gap: var(--base-size-12);
}

.Field {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  border: 0;
}

.Field__label {
  color: var(--fgColor-muted);
  font-size: 12px;
  font-weight: 600;
}

.Field__input {
  width: 100%;
  padding: 6px var(--base-size-8);
  border: 1px solid var(--borderColor-default);
  border-radius: var(--borderRadius-medium);
  background: var(--bgColor-default);
  color: var(--fgColor-default);
  font: inherit;
  font-size: 13px;
}

.Field__input:focus-visible {
  outline: 2px solid var(--borderColor-accent-emphasis);
  outline-offset: -1px;
  border-color: var(--borderColor-accent-emphasis);
}

.Field--pay {
  gap: 6px;
}

.Radio,
.Check {
  display: flex;
  align-items: flex-start;
  gap: var(--base-size-8);
  font-size: 13px;
  line-height: 1.5;
  cursor: pointer;
}

.Radio input,
.Check input {
  margin: 2px 0 0;
  flex: none;
  accent-color: var(--fgColor-accent);
}

.Radio.is-disabled {
  color: var(--fgColor-muted);
  cursor: not-allowed;
}

.Radio__note {
  color: var(--fgColor-muted);
  font-size: 12px;
}

.Check {
  padding: var(--base-size-12);
  border: 1px solid var(--borderColor-default);
  border-radius: var(--borderRadius-medium);
  background: var(--bgColor-attention-muted);
  color: var(--fgColor-default);
}

/* --- 收據 ---------------------------------------------------------------- */

.Receipt {
  border: 1px dashed var(--borderColor-default);
  border-radius: var(--borderRadius-medium);
  padding: var(--base-size-12);
  font-size: 13px;
}

.Receipt__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--base-size-8);
  padding: 4px 0;
  color: var(--fgColor-muted);
}

.Receipt__row code {
  font-family: var(--fontStack-mono);
  font-size: 12px;
  color: var(--fgColor-default);
}

.Receipt__row--item {
  color: var(--fgColor-default);
}

.Receipt__row--total {
  margin-top: 4px;
  padding-top: var(--base-size-8);
  border-top: 1px solid var(--borderColor-default);
  color: var(--fgColor-default);
  font-size: 15px;
}

.btn.is-busy {
  opacity: 0.7;
}

/* --- 首頁 CTA ------------------------------------------------------------ */

.PaywallCta {
  display: flex;
  align-items: center;
  gap: var(--base-size-12);
  flex-wrap: wrap;
  margin: var(--base-size-16) 0 0;
  padding: var(--base-size-16);
  border: 1px solid var(--borderColor-default);
  border-radius: var(--borderRadius-medium);
  background: var(--bgColor-muted);
}

.PaywallCta__main {
  flex: 1 1 240px;
  min-width: 0;
}

.PaywallCta__title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.PaywallCta__note {
  margin: 2px 0 0;
  color: var(--fgColor-muted);
  font-size: 12px;
  line-height: 1.6;
}

/* 對話框打開時鎖住底層滾動 */
body.has-paywall {
  overflow: hidden;
}