/* Demo, banks, download and FAQ. Tokens live in base.css. */

/* Interactive demo ------------------------------------------------------- */

.demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  align-items: start;
  gap: clamp(48px, 7vw, 96px);
}

.demo-steps {
  display: grid;
  gap: 8px;
  margin-top: 40px;
}

.demo-step {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  width: 100%;
  padding: 18px 20px;
  border: 1px solid transparent;
  border-radius: 20px;
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.demo-step:hover {
  background: rgba(255, 255, 255, 0.55);
}

.demo-step[aria-pressed="true"] {
  border-color: var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.demo-step:focus-visible {
  border-radius: 20px;
}

.demo-step-progress {
  position: absolute;
  right: 20px;
  bottom: 0;
  left: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left;
  pointer-events: none;
}

.demo-step-index {
  flex: none;
  padding-top: 2px;
  color: var(--faint);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  transition: color 0.25s ease;
}

.demo-step[aria-pressed="true"] .demo-step-index {
  color: var(--brand);
}

.demo-step strong {
  display: block;
  color: var(--ink);
  font-size: 17px;
  font-weight: 600;
}

.demo-step small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.demo-card {
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--canvas);
  box-shadow: var(--shadow-raised);
}

.demo-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.demo-card-meta {
  color: var(--muted);
  font-size: 13px;
}

.demo-question {
  margin-top: 22px;
  color: var(--ink);
  font-size: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem);
  font-weight: 600;
  line-height: 1.42;
  letter-spacing: -0.01em;
}

.demo-question-support {
  padding: 2px 0 2px 16px;
  border-left: 3px solid var(--brand);
  color: var(--ink-soft);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
}

.demo-options {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.demo-options li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line-app);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

.option-key {
  display: grid;
  flex: none;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--ink);
  background: #f2f6fa;
  font-size: 14px;
  font-weight: 700;
  transition: color 0.3s ease, background-color 0.3s ease;
}

.option-text {
  display: grid;
  flex: 1;
  padding-top: 4px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

.option-text .demo-support {
  display: block;
  padding-top: 4px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

.option-check {
  flex: none;
  width: 28px;
  height: 28px;
  margin-top: 2px;
  padding: 5px;
  border-radius: 50%;
  fill: none;
  stroke: #fff;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  background: var(--success);
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.3s ease, transform 0.35s var(--ease-out);
}

.demo-explain {
  display: grid;
  gap: 8px;
  padding-left: 16px;
  border-left: 3px solid var(--brand);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.65;
}

.demo-explain-label {
  color: var(--brand);
  font-weight: 600;
}

.demo-explain-original {
  color: var(--muted);
  font-size: 14px;
}

.demo-memory-label {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.demo-explain .chip-row {
  margin-top: 0;
  padding-top: 0;
}

/* Support text and explanation collapse to zero rows, so the card can grow
   smoothly instead of jumping (transitions live in motion.css). */
.demo-collapse {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  visibility: hidden;
}

.demo-collapse > * {
  min-height: 0;
  overflow: hidden;
}

.demo-card:not([data-mode="original"]) .demo-collapse-support,
.demo-card[data-mode="explain"] .demo-collapse-explain {
  grid-template-rows: 1fr;
  opacity: 1;
  visibility: visible;
}

div.demo-collapse-support {
  margin-top: 0;
}

.demo-card:not([data-mode="original"]) div.demo-collapse-support {
  margin-top: 16px;
}

.demo-card[data-mode="explain"] .demo-collapse-explain {
  margin-top: 24px;
}

.demo-card[data-mode="explain"] .is-correct {
  border-color: var(--success);
  background: var(--success-soft);
}

.demo-card[data-mode="explain"] .is-correct .option-key {
  color: #fff;
  background: var(--success);
}

.demo-card[data-mode="explain"] .is-correct .option-check {
  opacity: 1;
  transform: none;
}

/* Screens gallery -------------------------------------------------------- */

.shots {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.shot {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.shot-frame {
  width: min(100%, 260px);
  margin: 0 auto 18px;
  padding: 7px;
  border-radius: 40px;
  background: linear-gradient(150deg, #24324a 0%, var(--bezel) 38%, #050b16 100%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.1),
    0 2px 4px rgba(9, 36, 73, 0.06),
    0 28px 56px -28px rgba(9, 36, 73, 0.34);
}

.shot-frame img {
  width: 100%;
  height: auto;
  aspect-ratio: 600 / 1303;
  border-radius: 33px;
  background: var(--canvas-warm);
}

.shot-title {
  color: var(--ink);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
}

.shot-body {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

:lang(zh-CN) .shot-body {
  word-break: keep-all;
  overflow-wrap: anywhere;
}

/* Banks ------------------------------------------------------------------ */

.bank-table {
  border-top: 1px solid var(--line-strong);
}

.bank-country {
  position: relative;
  display: grid;
  grid-template-columns: minmax(180px, 3fr) minmax(0, 9fr);
  gap: 32px;
  padding-block: 28px;
  border-bottom: 1px solid var(--line);
}

.bank-name {
  color: var(--ink);
  font-size: clamp(1.5rem, 1.2rem + 0.8vw, 1.875rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.bank-name small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0;
}

.bank-rows {
  display: grid;
}

.bank-row {
  display: grid;
  grid-template-columns: minmax(170px, 2fr) minmax(0, 3fr) auto;
  align-items: baseline;
  gap: 24px;
  padding-block: 10px;
}

.bank-row dt {
  grid-column: 1;
}

.bank-row .bank-rule {
  grid-column: 2;
  grid-row: 1;
}

.bank-row .bank-count {
  grid-column: 3;
  grid-row: 1;
  min-width: 3.4ch;
  text-align: right;
}

.bank-row + .bank-row {
  margin-top: 8px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}

.bank-row dt {
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
}

.bank-count {
  color: var(--ink);
  font-size: clamp(2.25rem, 1.85rem + 1.2vw, 3rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
}

.bank-rule {
  color: var(--muted);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}

.bank-note {
  margin-top: 28px;
  color: var(--muted);
  font-size: 15px;
}

/* Download --------------------------------------------------------------- */

.download {
  padding-top: 0;
}

.download-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
  padding: clamp(72px, 9vw, 112px) clamp(24px, 5vw, 64px);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  text-align: center;
  box-shadow: var(--shadow-soft);
}

.download-panel::before {
  content: "";
  position: absolute;
  top: -55%;
  left: 50%;
  width: min(120%, 1100px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(18, 109, 204, 0.1), transparent);
  transform: translateX(-50%);
  pointer-events: none;
}

.download-panel > * {
  position: relative;
}

.download-mark {
  border-radius: 16px;
  box-shadow: 0 0 0 1px var(--line), 0 16px 32px -18px rgba(9, 36, 73, 0.5);
}

.download-panel .section-title {
  margin-top: 28px;
}

.download-panel .section-lede {
  margin-inline: auto;
}

.download-panel .purchase-note {
  margin-top: 14px;
}

.download-panel .store-buttons {
  justify-content: center;
  margin-top: 32px;
}

.download-panel .text-link {
  margin-top: 16px;
}

/* FAQ -------------------------------------------------------------------- */

.faq {
  padding-top: 0;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: clamp(40px, 6vw, 96px);
}

.faq-layout .section-head {
  margin-bottom: 0;
}

.faq-list {
  border-top: 1px solid var(--line-strong);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding-block: 20px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  list-style: none;
  cursor: pointer;
  transition: color 0.2s ease;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary:hover {
  color: var(--brand);
}

.faq-icon {
  position: relative;
  flex: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--canvas-warm);
  transition: background-color 0.2s ease;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 1.6px;
  border-radius: 1px;
  background: var(--ink);
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease-out);
}

.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

details[open] .faq-icon {
  background: var(--brand-soft);
}

details[open] .faq-icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-list details p {
  overflow: hidden;
  max-width: 40em;
  padding-bottom: 24px;
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
}