/* No.23 ページ遷移とローディング */

.pt-stage {
  padding: clamp(26px, 5vw, 60px) clamp(16px, 4vw, 48px) clamp(40px, 6vw, 76px);
  background:
    radial-gradient(circle at 20% 0%, rgba(83, 169, 175, 0.12), transparent 44%),
    var(--surface-1);
}
.pt-wrap { width: min(900px, 100%); margin-inline: auto; }

.pt-browser {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 26px 58px rgba(40, 107, 112, 0.18);
}

.pt-chrome {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 14px;
  background: #eae7dd;
  border-bottom: 1px solid rgba(63, 70, 72, 0.1);
}
.pt-dot { width: 10px; height: 10px; background: rgba(63, 70, 72, 0.22); border-radius: 50%; }
.pt-url {
  flex: 1;
  margin-left: 10px;
  padding: 4px 12px;
  color: #526061;
  background: var(--surface);
  border-radius: 999px;
  font-family: var(--font-ui);
  font-size: 12px;
}

.pt-view {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10.5;
  background: var(--surface);
}

.pt-page {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  visibility: hidden;
  opacity: 0;
}
.pt-page.is-current { visibility: visible; opacity: 1; }
.pt-page.is-anim { visibility: visible; }

.pt-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px clamp(16px, 3vw, 28px);
  border-bottom: 1px solid var(--line);
}
.pt-logo {
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.pt-links { display: flex; gap: clamp(10px, 2vw, 20px); }
.pt-links a {
  color: #526061;
  font-size: 12.5px;
  font-weight: 700;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}
.pt-links a:hover { color: var(--brand-deep); }
.pt-links a.is-here { color: var(--brand-deep); border-color: var(--brand); }

.pt-body { flex: 1; padding: clamp(14px, 3vw, 26px); }

.pt-hero {
  display: grid;
  place-items: center;
  height: 46%;
  min-height: 92px;
  margin-bottom: 16px;
  border-radius: 3px 16px 16px 16px;
  color: var(--surface);
  font-family: var(--font-ui);
  font-size: clamp(0.9rem, 2.4vw, 1.3rem);
  font-weight: 700;
  letter-spacing: 0.08em;
}
.pt-hero-home { background: linear-gradient(140deg, var(--brand-deep), #4e7f74); }
.pt-hero-menu { background: linear-gradient(140deg, #7d6a4f, #b39a72); }
.pt-hero-access { background: linear-gradient(140deg, #4a6b7a, #7fa2ab); }

.pt-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.pt-block { display: block; height: 46px; background: rgba(83, 169, 175, 0.14); border-radius: 8px; }
.pt-line { height: 9px; margin-bottom: 9px; background: rgba(63, 70, 72, 0.11); border-radius: 999px; }
.pt-line-sm { width: 58%; }

.pt-menu-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 9px 2px;
  border-bottom: 1px dashed rgba(83, 169, 175, 0.3);
  color: var(--text-2);
  font-size: 13px;
}
.pt-menu-row span:last-child {
  color: var(--brand-deep);
  font-family: var(--font-ui);
  font-weight: 700;
}

/* 遷移の覆い */
.pt-cover {
  position: absolute;
  inset: 0;
  z-index: 6;
  background: var(--brand-deep);
  pointer-events: none;
  opacity: 0;
}
.pt-view[data-mode="curtain"] .pt-cover {
  opacity: 1;
  transform: scaleY(0);
  transform-origin: bottom center;
}
.pt-view[data-mode="curtain"].is-cover-in .pt-cover {
  transform: scaleY(1);
  transition: transform 0.42s cubic-bezier(0.6, 0, 0.3, 1);
}
.pt-view[data-mode="curtain"].is-cover-out .pt-cover {
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.46s cubic-bezier(0.3, 0.4, 0.2, 1);
}

.pt-view[data-mode="fade"] .pt-cover { transform: none; }
.pt-view[data-mode="fade"].is-cover-in .pt-cover { opacity: 1; transition: opacity 0.34s ease; }
.pt-view[data-mode="fade"].is-cover-out .pt-cover { opacity: 0; transition: opacity 0.4s ease; }

/* スライドは覆いを使わず、ページ同士を入れ替える */
.pt-view[data-mode="slide"] .pt-cover { display: none; }
.pt-page.is-slide-out {
  visibility: visible;
  opacity: 1;
  transform: translateX(-26%);
  filter: brightness(0.92);
  transition: transform 0.55s cubic-bezier(0.5, 0, 0.2, 1), opacity 0.55s ease, filter 0.55s ease;
  opacity: 0;
}
.pt-page.is-slide-in {
  visibility: visible;
  opacity: 1;
  transform: translateX(0);
  transition: transform 0.55s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.pt-page.is-slide-start { visibility: visible; opacity: 1; transform: translateX(100%); }

/* ローディング */
.pt-loader {
  position: absolute;
  inset: 0;
  z-index: 8;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: var(--surface);
  transition: opacity 0.4s ease, visibility 0s;
}
.pt-loader.is-done {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease, visibility 0s linear 0.5s;
}
.pt-loader-mark {
  color: var(--text);
  font-family: var(--font-ui);
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 700;
  letter-spacing: 0.14em;
}
.pt-loader-num {
  color: var(--brand-deep);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.pt-loader-bar {
  display: block;
  width: min(220px, 52%);
  height: 2px;
  background: rgba(83, 169, 175, 0.24);
  border-radius: 999px;
  overflow: hidden;
}
.pt-loader-bar i { display: block; width: 0; height: 100%; background: var(--brand-deep); }

.pt-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 22px;
}
.pt-modes {
  display: flex;
  gap: 6px;
  padding: 5px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
}
.pt-mode {
  padding: 9px 18px;
  color: var(--text-2);
  background: transparent;
  border: 0;
  border-radius: 999px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.25s ease, background-color 0.25s ease;
}
.pt-mode.is-active { color: var(--surface); background: var(--brand-deep); }

.pt-replay {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  color: var(--brand-deep);
  background: var(--surface);
  border: 1px solid rgba(83, 169, 175, 0.4);
  border-radius: 999px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}
.pt-replay:hover { background: var(--surface-2); }

.pt-hint { margin: 14px 0 0; color: var(--text-3); font-size: 13px; }

@media (max-width: 600px) {
  .pt-view { aspect-ratio: 4 / 4.4; }
  .pt-controls { display: block; }
  .pt-modes { justify-content: center; }
  .pt-replay { width: 100%; justify-content: center; margin-top: 10px; }
  .pt-links { gap: 9px; }
  .pt-links a { font-size: 11.5px; }
}