.saa-app {
  --saa-accent: currentColor;
  --saa-text-color: inherit;
  --saa-nav-bg: transparent;
  --saa-nav-border: rgba(127,127,127,.18);
  --saa-button-bg: rgba(127,127,127,.08);
  --saa-button-border: rgba(127,127,127,.18);
  --saa-button-text: inherit;
  --saa-card-bg: rgba(127,127,127,.05);
  --saa-card-border: rgba(127,127,127,.15);
  --saa-card-text: inherit;
  --saa-viewer-bg: rgba(0,0,0,.08);
  --saa-pill-bg: rgba(127,127,127,.08);
  --saa-pill-border: rgba(127,127,127,.16);
  --saa-pill-text: inherit;
  --saa-shadow: 0 14px 40px rgba(0,0,0,.05);
  --saa-radius: 22px;
  --saa-gap: 18px;
  --saa-shell-padding: 0px;
  --saa-album-min: 220px;
  --saa-photo-min: 170px;
  --saa-title-size: 24px;
  --saa-album-title-size: 20px;
  --saa-meta-size: 14px;
  --saa-button-size: 42px;
  --saa-body-min-height: 320px;
  --saa-stage-min-height: 72vh;
  color: var(--saa-text-color);
  background: transparent;
  width: 100%;
}

.saa-shell {
  background: transparent;
  border-radius: var(--saa-radius);
  color: inherit;
  padding: var(--saa-shell-padding);
}

.saa-topbar {
  position: sticky;
  top: 0;
  z-index: 15;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 0 18px;
  background: var(--saa-nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid color-mix(in srgb, var(--saa-nav-border) 65%, transparent);
}

.saa-nav-group {
  display: flex;
  gap: 10px;
}

.saa-nav-btn {
  appearance: none;
  border: 1px solid var(--saa-button-border);
  background: var(--saa-button-bg);
  color: var(--saa-button-text);
  width: var(--saa-button-size);
  height: var(--saa-button-size);
  min-width: var(--saa-button-size);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, opacity .18s ease, box-shadow .18s ease;
  backdrop-filter: blur(10px);
  box-shadow: var(--saa-shadow);
}

.saa-nav-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--saa-accent) 30%, transparent), var(--saa-shadow);
}

.saa-nav-btn:disabled {
  opacity: .38;
  cursor: default;
}

.saa-path {
  min-width: 0;
  text-align: center;
  font-size: var(--saa-title-size);
  font-weight: 650;
  letter-spacing: -.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.saa-body {
  min-height: var(--saa-body-min-height);
}

.saa-loading,
.saa-empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: min(260px, var(--saa-body-min-height));
  opacity: .72;
  text-align: center;
}

.saa-album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(var(--saa-album-min), 1fr));
  gap: var(--saa-gap);
}

.saa-album-card {
  position: relative;
  border: 1px solid var(--saa-card-border);
  border-radius: calc(var(--saa-radius) + 2px);
  background: var(--saa-card-bg);
  color: var(--saa-card-text);
  backdrop-filter: blur(12px);
  overflow: hidden;
  cursor: pointer;
  padding: 20px;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
  box-shadow: var(--saa-shadow);
}

.saa-album-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--saa-accent) 35%, transparent), var(--saa-shadow);
}

.saa-album-icon {
  width: 54px;
  height: 54px;
  border-radius: calc(var(--saa-radius) - 4px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--saa-accent) 18%, transparent), rgba(127,127,127,.06));
  margin-bottom: 22px;
  font-size: 22px;
}

.saa-album-title {
  font-size: var(--saa-album-title-size);
  font-weight: 650;
  line-height: 1.15;
  margin: 0 0 6px;
}

.saa-album-meta {
  opacity: .72;
  font-size: var(--saa-meta-size);
}

.saa-photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(var(--saa-photo-min), 1fr));
  gap: 14px;
}

.saa-photo-card {
  position: relative;
  overflow: hidden;
  border-radius: calc(var(--saa-radius) - 2px);
  background: var(--saa-card-bg);
  border: 1px solid var(--saa-card-border);
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  box-shadow: var(--saa-shadow);
}

.saa-photo-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--saa-accent) 35%, transparent), var(--saa-shadow);
}

.saa-photo-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.saa-photo-card::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 60px;
  background: linear-gradient(to top, rgba(0,0,0,.22), transparent);
  pointer-events: none;
}

.saa-viewer {
  display: grid;
  gap: var(--saa-gap);
}

.saa-viewer-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: var(--saa-stage-min-height);
  border-radius: calc(var(--saa-radius) + 6px);
  overflow: hidden;
  background: var(--saa-viewer-bg);
  border: 1px solid var(--saa-card-border);
  backdrop-filter: blur(12px);
}

.saa-viewer-stage img {
  max-width: 100%;
  max-height: var(--saa-stage-min-height);
  object-fit: contain;
  border-radius: calc(var(--saa-radius) - 4px);
}

.saa-viewer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.saa-viewer-title {
  font-size: max(20px, calc(var(--saa-title-size) * 0.95));
  font-weight: 650;
  letter-spacing: -.02em;
}

.saa-pill-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.saa-pill {
  border: 1px solid var(--saa-pill-border);
  background: var(--saa-pill-bg);
  color: var(--saa-pill-text);
  padding: 11px 16px;
  border-radius: 999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
  backdrop-filter: blur(10px);
  box-shadow: var(--saa-shadow);
}

.saa-pill:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--saa-accent) 35%, transparent), var(--saa-shadow);
}

.saa-thumb-strip {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(74px, 1fr));
  gap: 10px;
}

.saa-thumb {
  border-radius: calc(var(--saa-radius) - 6px);
  overflow: hidden;
  border: 1px solid var(--saa-card-border);
  background: var(--saa-card-bg);
  cursor: pointer;
  opacity: .7;
  transition: opacity .18s ease, transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.saa-thumb.is-active {
  opacity: 1;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--saa-accent) 40%, transparent);
}

.saa-thumb:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.saa-thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

@media (max-width: 768px) {
  .saa-topbar {
    grid-template-columns: auto 1fr;
  }

  .saa-topbar > .saa-nav-btn[data-action="home"] {
    justify-self: end;
    grid-column: 2;
    grid-row: 1;
  }

  .saa-photo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .saa-viewer-stage {
    min-height: min(56vh, var(--saa-stage-min-height));
  }

  .saa-viewer-stage img {
    max-height: min(56vh, var(--saa-stage-min-height));
  }
}