/* ==========================================================================
   LUMEN · detail sheet — image viewer + info rail
   ========================================================================== */

.overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  display: flex;
  padding: clamp(10px, 2vw, 26px);
  background: var(--scrim);
  -webkit-backdrop-filter: blur(30px) saturate(130%);
  backdrop-filter: blur(30px) saturate(130%);
  animation: overlay-in var(--dur-3) var(--ease-out);
}
@keyframes overlay-in {
  from {
    opacity: 0;
  }
}
.overlay--closing {
  animation: overlay-out var(--dur-2) var(--ease-out) forwards;
}
@keyframes overlay-out {
  to {
    opacity: 0;
  }
}

.sheet {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 1720px;
  margin: auto;
  height: 100%;
  border-radius: var(--r-2xl);
  corner-shape: squircle;
  background: linear-gradient(180deg, rgba(24, 24, 30, 0.62), rgba(12, 12, 17, 0.72));
  border: 1px solid rgba(255, 255, 255, 0.14);
  -webkit-backdrop-filter: blur(44px) saturate(150%);
  backdrop-filter: blur(44px) saturate(150%);
  box-shadow: 0 60px 120px -40px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  overflow: hidden;
  animation: sheet-in var(--dur-4) var(--ease-spring);
}
@keyframes sheet-in {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.985);
  }
}

.sheet__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.sheet__crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  font-size: var(--fs-xs);
  color: var(--text-3);
}
.sheet__crumb b {
  font-weight: 600;
  color: var(--text-2);
}
.sheet__bar-spacer {
  margin-left: auto;
}
.sheet__nav {
  display: flex;
  gap: 6px;
  align-items: center;
}
.sheet__count {
  padding: 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-4);
  font-variant-numeric: tabular-nums;
}

.sheet__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 424px);
  flex: 1;
  min-height: 0;
}

/* --------------------------------------------------------------------------
   viewer (left)
   -------------------------------------------------------------------------- */
.viewer {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background:
    radial-gradient(80% 70% at 50% 20%, rgba(255, 255, 255, 0.05), transparent 70%),
    rgba(4, 4, 8, 0.34);
  overflow: hidden;
}
.viewer__stage {
  position: relative;
  flex: 1;
  min-height: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  cursor: default;
  touch-action: none;
}
.viewer__stage.is-zoomed {
  cursor: grab;
}
.viewer__stage.is-panning {
  cursor: grabbing;
}
.viewer__frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
  transform-origin: center center;
  transition: transform 240ms var(--ease-out);
  will-change: transform;
}
.viewer__frame.is-dragging {
  transition: none;
}
.viewer__media {
  max-width: 100%;
  max-height: calc(100vh - 220px);
  width: auto;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.4);
  user-select: none;
}
.viewer__frame.is-original .viewer__media {
  border-radius: 8px;
}
.viewer__loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(6, 6, 10, 0.6);
  gap: 10px;
  color: var(--text-2);
  font-size: var(--fs-xs);
  z-index: 3;
}
.spinner {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.16);
  border-top-color: rgba(255, 255, 255, 0.85);
  animation: spin 760ms linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.viewer__hint {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  pointer-events: none;
}
.viewer__hint span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 26px;
  padding: 0 12px;
  border-radius: var(--r-pill);
  font-size: var(--fs-micro);
  font-weight: 560;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(10, 10, 16, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.12);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  animation: fade-in var(--dur-3) var(--ease-out);
}
.viewer__hint kbd {
  display: inline-flex;
  height: 16px;
  padding: 0 4px;
  align-items: center;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 9.5px;
  background: rgba(255, 255, 255, 0.14);
}

.viewer__toolbar {
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px;
  border-radius: var(--r-pill);
  background: rgba(14, 14, 20, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.14);
  -webkit-backdrop-filter: blur(28px) saturate(160%);
  backdrop-filter: blur(28px) saturate(160%);
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  animation: rise-in var(--dur-4) var(--ease-spring);
}
@keyframes rise-in {
  from {
    opacity: 0;
    transform: translate(-50%, 12px);
  }
}
.viewer__toolbar .icon-btn {
  width: 32px;
  height: 32px;
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}
.viewer__toolbar .icon-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}
.zoomval {
  min-width: 52px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
}
.vsep {
  width: 1px;
  height: 16px;
  margin: 0 3px;
  background: rgba(255, 255, 255, 0.12);
}

/* video */
.viewer__stage video.viewer__media {
  max-height: calc(100vh - 220px);
}

/* --------------------------------------------------------------------------
   info rail (right)
   -------------------------------------------------------------------------- */
.info {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}
.info__scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 22px 22px 18px;
}
.info__head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 4px;
}
.info__title {
  flex: 1;
  min-width: 0;
  font-size: 21px;
  font-weight: 660;
  letter-spacing: -0.02em;
  line-height: 1.32;
  color: #fff;
  overflow-wrap: anywhere;
  outline: 0;
  border-radius: 8px;
  transition: background var(--dur-2), box-shadow var(--dur-2);
}
.info__title[contenteditable="true"] {
  background: rgba(0, 0, 0, 0.3);
  box-shadow: 0 0 0 2px hsl(var(--accent-h) 100% 66% / 0.55);
  padding: 2px 6px;
  margin: -2px -6px;
  cursor: text;
}
.info__id {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-4);
}
.info__id button {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-4);
}
.info__id button:hover {
  color: var(--text-2);
}
.info__id .icon {
  width: 11px;
  height: 11px;
}

.info__section {
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}
.info__section:first-of-type {
  border-top: 0;
  padding-top: 0;
}

/* related picks ---------------------------------------------------------- */
.related {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.related__item {
  position: relative;
  aspect-ratio: 3 / 2;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--r-sm);
  corner-shape: squircle;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: transform var(--dur-2) var(--ease-out), border-color var(--dur-2),
    box-shadow var(--dur-2) var(--ease-out);
}
.related__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-3) var(--ease-out), filter var(--dur-2);
}
.related__item:hover {
  transform: translateY(-2px);
  border-color: hsl(var(--accent-h) 100% 72% / 0.55);
  box-shadow: 0 12px 26px -14px rgba(0, 0, 0, 0.9);
}
.related__item:hover img {
  transform: scale(1.07);
  filter: saturate(1.08) brightness(1.05);
}
.related__name {
  position: absolute;
  inset: auto 0 0;
  padding: 12px 6px 5px;
  font-size: 9.5px;
  font-weight: 560;
  line-height: 1.25;
  text-align: left;
  color: #fff;
  background: linear-gradient(180deg, transparent, rgba(4, 5, 10, 0.86));
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--dur-2), transform var(--dur-2) var(--ease-out);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.related__item:hover .related__name {
  opacity: 1;
  transform: none;
}
.related__play {
  position: absolute;
  top: 5px;
  right: 5px;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
}
.info__label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  font-size: var(--fs-micro);
  font-weight: 640;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--text-4);
}
.info__label .icon {
  width: 12px;
  height: 12px;
}
.info__label .add {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  text-transform: none;
  letter-spacing: 0;
  font-size: 10.5px;
  color: var(--text-3);
  font-weight: 560;
}
.info__label .add:hover {
  color: var(--text-1);
}

.taglist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.taglist .chip {
  height: 28px;
  font-size: var(--fs-micro);
  padding: 0 10px;
}
.tagadd {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}
.tagadd input {
  flex: 1;
  height: 30px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.28);
  padding: 0 11px;
  font-size: var(--fs-xs);
  outline: 0;
}
.tagadd input:focus {
  border-color: hsl(var(--accent-h) 100% 70% / 0.55);
}

.metagrid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.metacell {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  background: rgba(16, 16, 22, 0.55);
}
.metacell dt {
  font-size: 10px;
  font-weight: 560;
  letter-spacing: 0.03em;
  color: var(--text-4);
}
.metacell dd {
  margin: 0;
  font-size: var(--fs-xs);
  font-weight: 580;
  color: var(--text-1);
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: center;
  gap: 5px;
  overflow-wrap: anywhere;
}
.metacell dd .icon {
  width: 12px;
  height: 12px;
  color: var(--text-3);
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.actions .btn {
  --btn-h: 42px;
  font-size: var(--fs-sm);
}
.actions .btn--wide {
  grid-column: 1 / -1;
}

/* link formats ---------------------------------------------------------- */
/* link rows: every format visible at once, each copyable on its own */
.links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.linkrow {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 7px 8px 7px 12px;
  border-radius: var(--r-md);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.055),
    rgba(255, 255, 255, 0.022)
  );
  border: 1px solid rgba(255, 255, 255, 0.085);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.09),
    inset 0 -1px 0 rgba(0, 0, 0, 0.18);
  transition: border-color var(--dur-2), background var(--dur-2), box-shadow var(--dur-2);
}
@media (hover: hover) {
  .linkrow:hover {
    background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.085),
      rgba(255, 255, 255, 0.035)
    );
    border-color: hsl(var(--accent-h) 100% 74% / 0.34);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14),
      0 8px 20px -14px rgba(0, 0, 0, 0.8);
  }
}
.linkrow__label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  flex: none;
  min-width: 74px;
  font-size: var(--fs-micro);
  font-weight: 620;
  letter-spacing: 0.02em;
  color: var(--text-4);
}
.linkrow__label .icon {
  width: 12px;
  height: 12px;
  opacity: 0.7;
}
.linkrow__code {
  flex: 1;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.8);
  overflow-wrap: anywhere;
  word-break: break-all;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  user-select: all;
}
.linkrow__copy {
  flex: none;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 50%;
  color: var(--text-3);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14);
  cursor: pointer;
  transition: color var(--dur-2), background var(--dur-2), transform var(--dur-1),
    box-shadow var(--dur-2);
}
.linkrow__copy .icon {
  width: 13px;
  height: 13px;
}
.linkrow__copy:hover {
  color: var(--text-1);
  background: rgba(255, 255, 255, 0.16);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.24);
}
.linkrow__copy:active {
  transform: scale(0.9);
}
.linkrow__copy.is-copied {
  color: #9ff0c0;
  background: rgba(52, 199, 122, 0.2);
}
.support {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 2px;
  font-size: 10.5px;
  color: var(--text-4);
}
.support .ok {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  height: 20px;
  padding: 0 7px;
  border-radius: 6px;
  color: #9ff0c0;
  background: rgba(52, 199, 122, 0.12);
  border: 1px solid rgba(52, 199, 122, 0.2);
}
.support .ok .icon {
  width: 10px;
  height: 10px;
  stroke-width: 2.6;
}

.info__foot {
  flex: none;
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 12px 22px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(0, 0, 0, 0.16);
}
.info__foot .spacer {
  flex: 1;
}
.admin-only {
  display: none;
}
body.is-admin .admin-only {
  display: inline-flex;
}
body.is-admin .admin-only--block {
  display: block;
}
/* the .admin-only guard must beat component-level display rules */
body:not(.is-admin) .admin-only {
  display: none !important;
}
body:not(.is-admin) .guest-hide {
  display: none !important;
}

/* copied state */
.btn.is-copied {
  color: #9ff0c0;
  border-color: rgba(52, 199, 122, 0.4);
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .sheet__body {
    grid-template-columns: minmax(0, 1fr) 370px;
  }
}
@media (max-width: 860px) {
  .overlay {
    padding: 0;
  }
  .sheet {
    border-radius: 0;
    height: 100%;
    margin: 0;
  }
  .sheet__body {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
  }
  .viewer {
    flex: none;
    height: 52svh;
    min-height: 300px;
  }
  .viewer__media {
    max-height: 46svh;
  }
  .info {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    flex: none;
  }
  .info__scroll {
    overflow: visible;
    padding: 18px 16px 4px;
  }
  .info__foot {
    position: sticky;
    bottom: 0;
    padding: 10px 16px calc(12px + env(safe-area-inset-bottom));
    background: rgba(14, 14, 20, 0.9);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
  }
  .actions {
    grid-template-columns: 1fr 1fr;
  }
  .metagrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .sheet__bar {
    padding: 10px;
  }
  .viewer__toolbar {
    bottom: 10px;
  }
}
@media (max-width: 480px) {
  .info__title {
    font-size: 18px;
  }
  .actions {
    grid-template-columns: 1fr;
  }
  .viewer__toolbar {
    gap: 2px;
  }
}