/* Harmonia collection system (inline expandable sets) */

.harmoniaShell {
  width: 100%;
  margin: 0 auto;
}

.harmoniaIntro {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.harmoniaIntroTitle {
  margin: 0 0 0.6rem;
  font-family: "Inter", system-ui, sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.08;
  color: #fff;
}

.harmoniaIntroLead {
  margin: 0 auto;
  max-width: 680px;
  font-family: "Inter", system-ui, sans-serif;
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.62;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.74);
}

.harmoniaIntroMeta {
  margin: 0.95rem auto 0;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.56);
}

.harmoniaArchiveBreak {
  width: min(1120px, 100%);
  height: 1px;
  margin: clamp(2rem, 4.2vw, 3.3rem) auto clamp(2.4rem, 5vw, 4rem);
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.18) 18%,
    rgba(255, 255, 255, 0.18) 82%,
    rgba(255, 255, 255, 0) 100%
  );
}

.harmoniaSetList {
  display: grid;
  gap: clamp(2.8rem, 5vw, 4.6rem);
}

.harmoniaSet {
  width: 100%;
}

.harmoniaSetContent {
  --harmonia-edge-gutter: clamp(14px, 2vw, 28px);
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  padding-left: var(--harmonia-edge-gutter);
  padding-right: var(--harmonia-edge-gutter);
  text-align: left;
}

.harmoniaSetHeader {
  margin-bottom: 0.9rem;
}

.harmoniaSetTitle {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  font-size: clamp(1.3rem, 2.2vw, 1.85rem);
  font-weight: 700;
  line-height: 1.12;
  color: rgba(255, 255, 255, 0.97);
}

.harmoniaSetRange {
  margin: 0.16rem 0 0;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.2;
  color: rgba(255, 255, 255, 0.62);
}

.harmoniaSetDesc {
  margin: 0.72rem 0 0;
  max-width: 74ch;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.95rem;
  line-height: 1.58;
  color: rgba(255, 255, 255, 0.72);
}

.harmoniaSetMeta {
  margin: 0.62rem 0 0;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.74rem;
  line-height: 1.4;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}

.harmoniaPreviewGrid,
.harmoniaExpandedGrid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  width: 100%;
  margin: 0;
}

.harmoniaArtworkBtn {
  margin: 0;
  border: 0;
  padding: 0;
  width: 100%;
  aspect-ratio: 736 / 1024;
  overflow: hidden;
  background: #111;
  box-shadow: none;
  transition: transform 0.26s ease, box-shadow 0.26s ease;
}

.harmoniaArtworkBtn img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.32s ease;
}

.harmoniaPreviewGrid:hover .harmoniaArtworkBtn img {
  transform: scale(1.02);
  filter: brightness(1.06);
}

.harmoniaPreviewGrid .harmoniaArtworkBtn:hover img,
.harmoniaPreviewGrid .harmoniaArtworkBtn:focus-visible img {
  transform: scale(1.04);
  filter: brightness(1.1);
}

.harmoniaPreviewGrid .harmoniaArtworkBtn:hover,
.harmoniaPreviewGrid .harmoniaArtworkBtn:focus-visible {
  box-shadow: 0 18px 30px rgba(0, 0, 0, 0.28);
}

.harmoniaSetControl {
  margin-top: 0.82rem;
}

.harmoniaToggleBtn {
  border: 0;
  background: transparent;
  padding: 0;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.84);
  cursor: pointer;
  transition: color 0.22s ease, transform 0.22s ease;
}

.harmoniaToggleBtn:hover,
.harmoniaToggleBtn:focus-visible {
  color: #fff;
  transform: translateX(2px);
}

.harmoniaToggleBtn:disabled {
  opacity: 0.42;
  cursor: default;
  transform: none;
}

.harmoniaSetExpand {
  height: 0;
  opacity: 0;
  overflow: visible;
  transition: height 0.35s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.28s ease;
}

.harmoniaSetExpand.is-open {
  opacity: 1;
}

.harmoniaExpandedGrid {
  padding-top: 0;
}

.harmoniaArtworkBtn {
  cursor: pointer;
  position: relative;
}

.harmoniaArtworkBtn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.04);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.harmoniaArtworkBtn:hover img,
.harmoniaArtworkBtn:focus-visible img {
  transform: scale(1.028);
  filter: brightness(1.08);
}

.harmoniaArtworkBtn:hover::after,
.harmoniaArtworkBtn:focus-visible::after {
  opacity: 1;
}

.harmoniaArtworkBtn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.46);
  outline-offset: -2px;
}

/* Lightbox */
.harmoniaLightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.98);
  padding: 0.5rem;
}

.harmoniaLightbox.is-open {
  display: flex;
}

.harmoniaLightboxImg {
  width: auto;
  max-width: 98vw;
  height: 98vh;
  max-height: 98vh;
  object-fit: contain;
  background: transparent;
}

.harmoniaLightboxClose,
.harmoniaLightboxNav {
  position: absolute;
  border: 0;
  background: rgba(20, 20, 20, 0.55);
  color: #fff;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.harmoniaLightboxClose:hover,
.harmoniaLightboxClose:focus-visible,
.harmoniaLightboxNav:hover,
.harmoniaLightboxNav:focus-visible {
  background: rgba(40, 40, 40, 0.82);
  transform: translateY(-1px);
}

.harmoniaLightboxClose {
  top: 1rem;
  right: 1rem;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 999px;
  font-size: 1.55rem;
  line-height: 1;
}

.harmoniaLightboxNav {
  top: 50%;
  transform: translateY(-50%);
  width: 2.4rem;
  height: 3.8rem;
  font-size: 1.7rem;
}

.harmoniaLightboxNav--prev {
  left: 0.7rem;
}

.harmoniaLightboxNav--next {
  right: 0.7rem;
}

@media (max-width: 1040px) {
  .harmoniaPreviewGrid,
  .harmoniaExpandedGrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
  }
}

@media (max-width: 720px) {
  .harmoniaPreviewGrid,
  .harmoniaExpandedGrid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .harmoniaIntroLead {
    max-width: 100%;
  }
}