/* Hallmark · genre: editorial · macrostructure: Workbench index · theme: Studio editorial · enrichment: live session photography · nav: responsive shell · footer: none */
/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V5 · mobile labels and 44px targets verified */

#pane-media {
  --session-columns: 76px minmax(190px, 1.3fr) minmax(140px, 0.8fr) minmax(140px, 0.8fr) 76px minmax(220px, auto);
  min-width: 0;
  overflow-x: clip;
  font-family: var(--font-body);
}

.topbar #refreshBtn {
  white-space: nowrap;
}

.topbar #refreshBtn {
  flex: none;
  padding-inline: var(--space-xs);
}

.media-index-intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: var(--rule-hairline) solid var(--color-rule);
}

.media-index-intro h1 {
  min-width: 0;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -.025em;
  overflow-wrap: anywhere;
}

.media-index-intro p {
  max-width: 48ch;
  margin: 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: 1.55;
}

.media-index-intro div p {
  margin-top: var(--space-2xs);
  color: var(--color-ink-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}

.media-filter-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(148px, 196px)) minmax(0, 1fr) auto;
  align-items: end;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: var(--rule-hairline) solid var(--color-rule);
}

.media-filter-bar .field,
.media-filter-bar .lm-btn {
  min-height: 44px;
}

.media-filter-bar .lm-btn {
  white-space: nowrap;
}

.session-index-shell {
  margin-bottom: var(--space-xl);
  border: var(--rule-hairline) solid var(--color-rule);
  border-radius: var(--radius-portal);
  background: var(--color-surface);
  overflow: hidden;
}

.session-index-head,
.session-row {
  display: grid;
  grid-template-columns: var(--session-columns);
  align-items: center;
  gap: var(--space-sm);
}

.session-index-head {
  min-height: 40px;
  padding: 0 var(--space-sm);
  background: var(--color-paper-2);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
}

.session-row {
  min-height: 104px;
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color var(--dur-micro) var(--ease-out);
}

.session-row + .session-row {
  border-top: var(--rule-hairline) solid var(--color-rule);
}

.session-row:hover {
  background: var(--color-surface-soft);
}

.session-row:active {
  background: var(--color-paper-2);
}

.session-row:focus-visible {
  position: relative;
  z-index: 1;
  outline: 2px solid var(--color-focus);
  outline-offset: -3px;
}

.session-thumb {
  position: relative;
  display: grid;
  width: 64px;
  aspect-ratio: 4 / 5;
  place-items: center;
  overflow: hidden;
  border: var(--rule-hairline) solid var(--color-rule);
  border-radius: var(--radius-portal);
  background: var(--color-paper-3);
}

.session-thumb img {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.session-thumb img.is-broken {
  display: none;
}

.session-thumb-fallback {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}

.session-primary,
.session-machine,
.session-layout {
  min-width: 0;
}

.session-primary strong,
.session-machine strong,
.session-layout strong {
  display: block;
  overflow: hidden;
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-id,
.session-machine span,
.session-status {
  display: block;
  margin-top: var(--space-3xs);
  overflow: hidden;
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-id { font-family: var(--font-label); }

.session-status {
  color: var(--color-success);
  font-family: var(--font-body);
  font-weight: 600;
}

.session-count {
  color: var(--color-ink-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  white-space: nowrap;
}

.session-actions {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: var(--space-2xs);
  min-width: 0;
}

.session-action {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-xs);
  border: var(--rule-hairline) solid var(--color-rule-strong);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.session-action--primary {
  border-color: var(--color-ink);
  background: var(--color-ink);
  color: var(--color-paper);
}

.session-action:hover {
  border-color: var(--color-ink);
  background: var(--color-paper-2);
}

.session-action--primary:hover {
  background: var(--color-ink-2);
  color: var(--color-paper);
}

.session-action:active {
  transform: translateY(1px);
}

.session-action[data-state="copied"] {
  border-color: var(--color-success);
  color: var(--color-success);
}

.session-qr-card {
  text-align: center;
}

.session-qr-card .auth-eyebrow {
  margin-bottom: var(--space-2);
}

.session-qr-code {
  display: grid;
  width: min(256px, 100%);
  aspect-ratio: 1;
  margin: var(--space-5) auto;
  place-items: center;
  overflow: hidden;
  border: var(--rule-fine);
  border-radius: var(--radius-card-sm);
  background: var(--color-surface);
}

.session-qr-code canvas,
.session-qr-code img {
  display: block;
  width: 100%;
  height: 100%;
}

.session-qr-link {
  display: block;
  color: var(--color-ink-2);
  font-family: var(--font-label);
  font-size: var(--text-xs);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.session-qr-actions {
  flex-wrap: wrap;
  justify-content: center;
}

.session-empty {
  display: grid;
  gap: var(--space-2xs);
  justify-items: center;
  padding: var(--space-xl) var(--space-sm);
  color: var(--color-muted);
  text-align: center;
}

.session-empty strong {
  color: var(--color-ink);
  font-size: var(--text-base);
}

.session-empty span {
  max-width: 48ch;
  font-size: var(--text-sm);
}

.session-row--loading {
  pointer-events: none;
}

.session-skeleton {
  display: block;
  width: 70%;
  min-width: 36px;
  height: 12px;
  border-radius: var(--radius-portal);
  background: var(--color-skeleton);
  animation: session-pulse 1.2s var(--ease-in-out) infinite alternate;
}

.session-skeleton--wide {
  width: 88%;
  height: 30px;
}

.session-row--loading .session-thumb {
  width: 64px;
  height: auto;
}

#pane-media .shared-library {
  margin-top: 0;
  padding: var(--space-md);
  border-color: var(--color-rule);
  border-radius: var(--radius-portal);
  background: var(--color-paper-2);
}

#pane-media .shared-library-head {
  align-items: center;
}

#pane-media .shared-library-head .pane-title {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

#pane-media .shared-library-card {
  position: relative;
  display: grid;
  border-color: var(--color-rule);
  border-radius: var(--radius-portal);
  background: var(--color-surface);
}

#pane-media .shared-library-card img,
.shared-library-placeholder {
  grid-area: 1 / 1;
}

#pane-media .shared-library-card img.is-broken {
  display: none;
}

.shared-library-placeholder {
  display: grid;
  width: 100%;
  aspect-ratio: 3 / 4;
  place-items: center;
  padding: var(--space-sm);
  background: var(--color-paper-3);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-align: center;
}

#pane-media .shared-library-meta {
  grid-area: auto / 1;
}

@keyframes session-pulse {
  from { opacity: 0.55; }
  to { opacity: 1; }
}

@media (max-width: 72rem) {
  #pane-media {
    --session-columns: 76px minmax(180px, 1.3fr) minmax(130px, 0.8fr) minmax(130px, 0.8fr) 68px minmax(220px, auto);
  }
}

@media (max-width: 56rem) {
  .media-filter-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  }

  .media-filter-bar .topbar-spacer {
    display: none;
  }

  .session-index-head,
  .session-row {
    grid-template-columns: 76px minmax(0, 1fr) minmax(120px, 0.65fr) minmax(220px, auto);
  }

  .session-index-head span:nth-child(3),
  .session-index-head span:nth-child(5),
  .session-machine,
  .session-count {
    display: none;
  }
}

@media (max-width: 42rem) {
  .media-index-intro {
    display: grid;
    align-items: start;
    gap: var(--space-xs);
  }

  .media-index-intro h1 {
    font-size: var(--text-xl);
  }

  .media-filter-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .media-filter-bar > div:nth-child(3),
  .media-filter-bar .lm-btn {
    grid-column: 1 / -1;
  }

  .media-filter-bar .lm-btn {
    width: 100%;
  }

  .session-index-head {
    display: none;
  }

  .session-row,
  .session-row--loading {
    grid-template-columns: 64px minmax(0, 1fr);
    min-height: 96px;
    gap: var(--space-xs);
    padding: var(--space-xs);
  }

  .session-layout,
  .session-machine,
  .session-count,
  .session-row--loading > :nth-child(3),
  .session-row--loading > :nth-child(4),
  .session-row--loading > :nth-child(5) {
    display: none;
  }

  .session-thumb,
  .session-row--loading .session-thumb {
    width: 56px;
  }

  .session-primary strong {
    white-space: normal;
  }

  .session-id {
    max-width: 28ch;
  }

  .session-actions {
    grid-column: 2;
    justify-self: start;
    flex-wrap: wrap;
  }

  #pane-media .shared-library {
    padding: var(--space-sm);
  }

  #pane-media .shared-library-head {
    display: grid;
  }

  #pane-media .shared-library-head .lm-btn {
    justify-self: start;
  }
}

@media (max-width: 23.5rem) {
  .media-filter-bar {
    grid-template-columns: minmax(0, 1fr);
  }

  .media-filter-bar > div:nth-child(3),
  .media-filter-bar .lm-btn {
    grid-column: auto;
  }

  .session-row,
  .session-row--loading {
    grid-template-columns: 56px minmax(0, 1fr);
  }

  .session-action {
    padding-inline: var(--space-2xs);
  }
}

@media (prefers-reduced-motion: reduce) {
  .session-row,
  .session-skeleton {
    animation: none;
    transition: none;
  }
}