/* ─── Sound Archive — fibrous seal (assets/archive-seal.png, 576×1024)
   Inner void center 50% 50%, diameter ~11.1% of image width.
   Outer ring diameter ~75% of image width. */

.dark-sun-body,
html.is-dark-sun {
  overflow: hidden;
  height: 100%;
  background: #000;
}

html.is-dark-sun.is-archive-open,
html.is-dark-sun.is-archive-open body,
html.is-dark-sun.is-archive-open body.dark-sun-body {
  overflow: auto !important;
  overflow-x: hidden !important;
  height: auto !important;
  max-height: none !important;
  min-height: 100%;
}

.archive-page--sun {
  position: relative;
  height: 100dvh;
  min-height: 100dvh;
  overflow: hidden;
  background: #000;
}

.archive-page--sun .archive-page__body {
  max-width: none;
  margin: 0;
  padding: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.archive-page--sun .main__grain,
.archive-page--sun .main__sub,
.archive-page--sun .main__depth,
.archive-page--sun .main__waveform {
  display: none;
}

.archive-page--sun .main__header.archive-page__header {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 30;
  background: transparent;
  border: 0;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  pointer-events: none;
}

.archive-page--sun .archive-page__header::before {
  display: none;
}

.archive-page--sun .archive-page__header .main__back,
.archive-page--sun .archive-page__wordmark {
  pointer-events: auto;
}

.archive-page--sun .archive-page__wordmark {
  color: rgba(232, 226, 216, 0.42);
}

.dark-sun {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: #000;
  z-index: 1;
}

.dark-sun__world {
  --disc-x: 50%;
  --disc-y: 50%;
  --disc-d: 13.5%;
  position: absolute;
  left: 0;
  top: 0;
  width: max(100vw, 100dvh);
  height: max(100vw, 100dvh);
  transform-origin: 0 0;
  will-change: transform;
  transition: transform 0.8s cubic-bezier(0.22, 0.72, 0.18, 1);
}

.dark-sun__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  pointer-events: none;
  user-select: none;
}

.dark-sun__gate {
  position: absolute;
  left: var(--disc-x);
  top: var(--disc-y);
  width: var(--disc-d);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 8%;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: #f4efe6;
  cursor: pointer;
  container-type: size;
  -webkit-tap-highlight-color: transparent;
}

.dark-sun__gate:focus {
  outline: none;
}

.dark-sun__gate:focus-visible {
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.dark-sun__gate-label {
  font-family: var(--font-elegant);
  font-size: clamp(0.85rem, 34cqw, 1.7rem);
  font-weight: 700;
  font-style: italic;
  letter-spacing: 0.08em;
  line-height: 1.1;
  text-transform: uppercase;
  text-align: center;
  color: #ffffff;
  -webkit-text-stroke: 0.4px rgba(255, 255, 255, 0.35);
  text-shadow:
    0 0 10px rgba(255, 255, 255, 0.55),
    0 0 22px rgba(255, 255, 255, 0.28),
    0 1px 3px rgba(0, 0, 0, 0.95);
  transition: color 0.45s ease, text-shadow 0.45s ease, letter-spacing 0.45s ease;
}

.dark-sun__gate:hover .dark-sun__gate-label,
.dark-sun__gate:focus-visible .dark-sun__gate-label {
  color: #fff;
  letter-spacing: 0.2em;
  text-shadow:
    0 0 22px rgba(255, 255, 255, 0.55),
    0 1px 2px rgba(0, 0, 0, 0.9);
}

.dark-sun.is-descended .dark-sun__gate {
  pointer-events: none;
}

.dark-sun.is-flowing .dark-sun__world,
.dark-sun.is-flowing .dark-sun__gate {
  opacity: 0;
  pointer-events: none;
  transition: opacity 1.35s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.dark-sun .archive-flow {
  position: fixed;
  inset: 0;
  z-index: 8;
  width: 100%;
  height: 100%;
}

.dark-sun .archive-flow.is-behind {
  z-index: 1;
}

.dark-sun .archive-flow__label {
  position: absolute;
  z-index: 9;
}

.dark-sun.is-descended .archive-flow__label {
  opacity: 0;
  visibility: hidden;
}

.dark-sun__earth {
  position: absolute;
  inset: 0;
  z-index: 12;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: auto;
  overscroll-behavior: contain;
  padding:
    calc(5.5rem + env(safe-area-inset-top, 0px))
    1.25rem
    calc(2.25rem + env(safe-area-inset-bottom, 0px));
  opacity: 0;
  pointer-events: none;
  transform: none;
  transition: opacity 1.35s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.dark-sun.is-descended .dark-sun__earth {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

html.is-archive-open .archive-page--sun {
  position: relative;
  z-index: 2;
  height: auto !important;
  min-height: 100dvh;
  overflow: visible !important;
}

html.is-archive-open .main.archive-page--sun {
  height: auto !important;
  min-height: 100dvh;
  overflow: visible !important;
}

html.is-archive-open .archive-page--sun,
html.is-archive-open .dark-sun {
  background: transparent;
}

html.is-archive-open .dark-sun {
  position: relative;
  height: auto !important;
  min-height: 0;
  overflow: visible !important;
}

html.is-archive-open .dark-sun.is-flowing .dark-sun__world {
  display: none;
}

html.is-archive-open .archive-flow,
html.is-archive-open .archive-flow.is-behind,
html.is-archive-open .dark-sun .archive-flow,
html.is-archive-open .dark-sun .archive-flow.is-behind {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  display: block;
  visibility: visible;
}

@media (min-width: 821px) {
  .dark-sun .archive-flow,
  html.is-archive-open .archive-flow,
  html.is-archive-open .archive-flow.is-behind,
  html.is-archive-open .dark-sun .archive-flow,
  html.is-archive-open .dark-sun .archive-flow.is-behind {
    position: fixed;
    inset: auto;
    left: 50%;
    top: 50%;
    width: 100dvh;
    height: 100vw;
    transform: translate(-50%, -50%) rotate(90deg);
    object-fit: cover;
    object-position: center center;
  }
}

html.is-archive-open .archive-page--sun .main__header.archive-page__header {
  position: sticky;
  z-index: 40;
}

html.is-archive-open .dark-sun__earth {
  position: relative;
  inset: auto;
  top: auto;
  right: auto;
  bottom: auto;
  left: auto;
  display: block;
  overflow: visible !important;
  justify-content: flex-start;
  min-height: 0;
  height: auto;
  max-height: none;
  pointer-events: auto;
}

.dark-sun__earth-inner {
  width: min(58rem, 100%);
  margin: 0 auto;
  padding: 0.85rem 1.15rem 0.5rem;
  background:
    linear-gradient(
      180deg,
      rgba(0, 0, 0, 0) 0%,
      rgba(0, 0, 0, 0.42) 22%,
      rgba(0, 0, 0, 0.78) 100%
    );
}

.dark-sun__earth .archive-page__grid {
  max-width: none;
}

.dark-sun__earth .archive-grid {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.1);
}

.dark-sun__earth .archive-card {
  background: rgba(4, 4, 4, 0.78);
  padding: 1.2rem 1.25rem;
}

.dark-sun__earth .archive-page__foot {
  margin-top: 1.35rem;
  padding-top: 1.1rem;
  text-align: center;
}

.archive-page--sun.is-leaving {
  opacity: 0;
  transform: scale(0.992);
  transform-origin: 50% 42%;
  filter: none;
  transition:
    opacity 0.88s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 1s cubic-bezier(0.22, 0.61, 0.36, 1);
}

@media (prefers-reduced-motion: reduce) {
  .dark-sun__world,
  .dark-sun__earth,
  .dark-sun__gate-label {
    transition: none !important;
  }

  .dark-sun__earth {
    transform: none;
  }

  .dark-sun.is-descended .dark-sun__earth {
    opacity: 1;
  }
}

/* Phones: the seal is 9:16 — fill the viewport, keep the outer ring. */
@media (max-width: 820px) {
  .dark-sun__world {
    width: 100vw;
    height: 100dvh;
    min-height: 100svh;
  }

  .dark-sun__img {
    object-fit: cover;
    object-position: center center;
  }

  .dark-sun__gate {
    width: 13.6vw;
    padding: 6%;
  }

  .dark-sun__gate-label {
    font-size: clamp(0.62rem, 20cqw, 0.92rem);
    letter-spacing: 0.03em;
    line-height: 1.08;
    -webkit-text-stroke: 0.35px rgba(255, 255, 255, 0.4);
  }

  /* Phones: 9:16 film fills the portrait frame — never rotate, never clip. */
  .archive-flow,
  .archive-flow.is-playing,
  .archive-flow.is-behind,
  .dark-sun .archive-flow,
  html.is-archive-open .archive-flow,
  html.is-archive-open .archive-flow.is-behind,
  html.is-archive-open .dark-sun .archive-flow,
  html.is-archive-open .dark-sun .archive-flow.is-behind {
    position: fixed !important;
    inset: 0 !important;
    left: 0 !important;
    top: 0 !important;
    width: 100% !important;
    height: 100% !important;
    transform: translateZ(0) !important;
    -webkit-transform: translateZ(0) !important;
    object-fit: cover;
    object-position: center center;
  }

  html.is-archive-open .archive-flow.is-behind,
  html.is-archive-open .dark-sun .archive-flow.is-behind {
    z-index: 1 !important;
    opacity: 0.5;
  }

  .archive-flow.is-playing:not(.is-behind) {
    z-index: 240 !important;
    opacity: 1;
  }

  html.is-archive-open .archive-page--sun,
  html.is-archive-open .dark-sun {
    background: transparent;
  }

  html.is-archive-open .dark-sun__earth-inner {
    background:
      linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.12) 0%,
        rgba(0, 0, 0, 0.48) 28%,
        rgba(0, 0, 0, 0.82) 100%
      );
  }

  .dark-sun__earth {
    padding:
      calc(4.6rem + env(safe-area-inset-top, 0px))
      0.85rem
      calc(1.6rem + env(safe-area-inset-bottom, 0px));
  }

  .dark-sun__earth-inner {
    padding: 1.1rem 0.7rem 0.9rem;
  }
}

@media (max-width: 560px) {
  .dark-sun__gate-label {
    letter-spacing: 0.02em;
  }
}