.ephio-explore-main {
  background: var(--ephio-page-wash);
  min-height: 100vh;
  padding: 48px;
}

.ephio-explore-header {
  border-bottom: 1px solid var(--ephio-line);
  display: grid;
  gap: 10px;
  margin-bottom: 34px;
  max-width: 1180px;
  padding-bottom: 30px;
}

.ephio-explore-header p,
.ephio-explore-section-heading p {
  color: var(--ephio-accent);
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0;
  text-transform: uppercase;
}

.ephio-explore-header h1 {
  color: var(--ephio-heading);
  font-family: 'Rajdhani', sans-serif;
  font-size: 64px;
  line-height: 0.9;
  margin: 2px 0;
  text-transform: uppercase;
}

.ephio-explore-header span,
.ephio-explore-section-heading span {
  color: var(--ephio-muted);
  font-size: 14px;
}

.ephio-explore-layout {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.38fr);
  max-width: 1180px;
}

.ephio-explore-viewer,
.ephio-explore-browser {
  background: var(--ephio-surface);
  border: 1px solid var(--ephio-line);
  padding: 22px;
}

.ephio-explore-section-heading {
  align-items: center;
  border-bottom: 1px solid var(--ephio-line);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 14px;
}

.ephio-explore-page .viewer-container {
  aspect-ratio: 16 / 10;
  background: var(--ephio-surface-strong);
  border: 1px solid var(--ephio-line);
  overflow: hidden;
  position: relative;
}

.ephio-explore-page .viewer-container.large {
  aspect-ratio: auto;
  height: min(70vh, 720px);
}

.ephio-explore-page .viewer-container:fullscreen {
  background: var(--ephio-surface-strong);
  border: 0;
  height: 100%;
  width: 100%;
}

.ephio-explore-page #viewerCanvas {
  display: block;
  height: 100%;
  touch-action: none;
  width: 100%;
}

.ephio-explore-page .viewer-panel {
  align-items: center;
  background: rgba(5, 7, 9, 0.82);
  border-top: 1px solid var(--ephio-line);
  bottom: 0;
  display: flex;
  gap: 10px;
  height: 42px;
  left: 0;
  padding: 4px 8px;
  position: absolute;
  right: 0;
}

.ephio-explore-page #toggleSizeBtn {
  background: transparent;
  border: 1px solid var(--ephio-line);
  color: var(--ephio-heading);
  cursor: pointer;
  font-size: 20px;
  height: 32px;
  line-height: 1;
  width: 32px;
}

.ephio-explore-page #toggleSizeBtn:hover,
.ephio-explore-page #toggleSizeBtn:focus-visible {
  border-color: var(--ephio-accent);
  color: var(--ephio-accent);
}

.ephio-explore-page #viewermessage {
  color: var(--ephio-muted);
  font-size: 13px;
  margin: 0;
}

.ephio-explore-page .loader {
  animation: ephio-viewer-spin 0.7s linear infinite;
  border: 2px solid var(--ephio-line);
  border-radius: 50%;
  border-top-color: var(--ephio-accent);
  height: 36px;
  left: calc(50% - 18px);
  position: absolute;
  top: calc(50% - 18px);
  width: 36px;
  z-index: 2;
}

.ephio-explore-page .loader.hidden {
  display: none;
}

@keyframes ephio-viewer-spin {
  to { transform: rotate(360deg); }
}

.ephio-explore-page .browser-container {
  max-height: 470px;
  overflow-y: auto;
}

.ephio-explore-page .browser-collection + .browser-collection {
  border-top: 1px solid var(--ephio-line);
  margin-top: 18px;
  padding-top: 18px;
}

.ephio-explore-page .browser-collection-heading {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 0 12px;
}

.ephio-explore-page .browser-collection-heading p {
  color: var(--ephio-heading);
  font-family: 'Rajdhani', sans-serif;
  font-size: 17px;
  font-weight: 700;
  margin: 0;
  text-transform: uppercase;
}

.ephio-explore-page .browser-collection-heading span {
  color: var(--ephio-muted);
  font-size: 12px;
}

.ephio-explore-page .browser-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ephio-explore-page .thumb {
  aspect-ratio: 1;
  border: 1px solid var(--ephio-line);
  cursor: pointer;
  margin: 0;
  overflow: hidden;
}

.ephio-explore-page .thumb:hover,
.ephio-explore-page .thumb:focus-within {
  border-color: var(--ephio-accent);
}

.ephio-explore-page .thumb:focus-visible {
  border-color: var(--ephio-accent);
  outline: 2px solid var(--ephio-accent);
  outline-offset: 2px;
}

.ephio-explore-page .thumb img {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

@media (max-width: 900px) {
  .ephio-explore-main {
    padding: 32px 24px;
  }

  .ephio-explore-layout {
    grid-template-columns: 1fr;
  }

  .ephio-explore-page .browser-container {
    max-height: none;
  }
}

@media (max-width: 640px) {
  .ephio-explore-main {
    padding: 28px 16px;
  }

  .ephio-explore-header h1 {
    font-size: 48px;
  }

  .ephio-explore-viewer,
  .ephio-explore-browser {
    padding: 18px;
  }

  .ephio-explore-section-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}