/* 제품 자료·적용 사례 브라우저 — 트리 + 뷰어 (셸: subpage-shell.css) */
.catalog-browser__inner {
  max-width: none;
  margin: 0;
  padding: 0;
}

.catalog-browser__layout {
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
  gap: 1rem;
  min-height: calc(100vh - 76px - 3rem);
}

.catalog-tree {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border: 1px solid #dbe5ee;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(10, 37, 64, .06);
  overflow: hidden;
}

.catalog-tree__head {
  padding: .85rem 1rem;
  font-size: .92rem;
  font-weight: 800;
  color: #102a43;
  border-bottom: 1px solid #e8eef4;
  background: linear-gradient(180deg, #fafcff, #fff);
}

.catalog-tree__nav {
  flex: 1;
  overflow: auto;
  padding: .5rem 0;
}

.catalog-tree__group {
  margin: 0;
  border: 0;
}

.catalog-tree__group + .catalog-tree__group {
  border-top: 1px solid #f1f5f9;
}

.catalog-tree__group > summary {
  list-style: none;
  cursor: pointer;
}

.catalog-tree__group > summary::-webkit-details-marker {
  display: none;
}

.catalog-tree__node {
  display: flex;
  align-items: center;
  gap: .55rem;
  width: 100%;
  margin: 0;
  padding: .62rem 1rem .62rem .85rem;
  border: 0;
  background: transparent;
  color: #334155;
  font: inherit;
  font-size: .9rem;
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
  --tree-accent: #0f4f9f;
  --tree-icon: var(--icon-doc);
}

.catalog-tree__node--group {
  font-weight: 700;
  color: #102a43;
}

.catalog-tree__node--group::after {
  content: "";
  margin-left: auto;
  width: .45rem;
  height: .45rem;
  border-right: 2px solid #94a3b8;
  border-bottom: 2px solid #94a3b8;
  transform: rotate(45deg);
  transition: transform .15s ease;
  flex-shrink: 0;
}

.catalog-tree__group[open] > summary .catalog-tree__node--group::after {
  transform: rotate(225deg);
}

.catalog-tree__node--item {
  padding-left: 2.15rem;
  font-weight: 500;
}

.catalog-tree__node::before {
  content: "";
  flex: 0 0 1.2em;
  width: 1.2em;
  height: 1.2em;
  background: var(--tree-accent);
  -webkit-mask: var(--tree-icon) center / contain no-repeat;
  mask: var(--tree-icon) center / contain no-repeat;
}

.catalog-tree__node:hover,
.catalog-tree__node:focus-visible {
  background: #f0f6fc;
  outline: none;
}

.catalog-tree__node.is-active {
  background: #eaf2fb;
  color: #0f4f9f;
  font-weight: 700;
}

.catalog-tree__node--pending {
  opacity: .55;
  cursor: default;
}

.catalog-tree__node--pending::after {
  content: "준비 중";
  margin-left: auto;
  font-size: .72rem;
  font-weight: 600;
  color: #94a3b8;
}

.catalog-tree__list {
  list-style: none;
  margin: 0;
  padding: 0 0 .35rem;
}

.catalog-viewer {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  border: 1px solid #dbe5ee;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(10, 37, 64, .06);
  overflow: hidden;
}

.catalog-viewer__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .65rem 1rem;
  padding: .85rem 1rem;
  border-bottom: 1px solid #e8eef4;
  background: linear-gradient(180deg, #fafcff, #fff);
}

.catalog-viewer__title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 800;
  color: #102a43;
  line-height: 1.35;
}

.catalog-viewer__meta {
  margin: .15rem 0 0;
  font-size: .82rem;
  color: #64748b;
  font-weight: 500;
}

.catalog-viewer__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

.catalog-viewer__body {
  flex: 1;
  min-height: 0;
  position: relative;
  background: #eef2f6;
}

.catalog-viewer__frame {
  display: block;
  width: 100%;
  height: 100%;
  min-height: calc(100vh - 76px - 8.5rem);
  border: 0;
  background: #fff;
}

.browser-boot {
  padding: 1.25rem 1rem;
  border-radius: 10px;
  background: #f8fbfd;
  border: 1px solid #dbe5ee;
  margin: .75rem 0;
}
.browser-boot--loading .browser-boot__title { color: #0f4f9f; font-weight: 700; margin: 0 0 .35rem; }
.browser-boot--error { background: #fff8f8; border-color: #f5c2c7; }
.browser-boot__title { margin: 0 0 .5rem; font-size: 1rem; font-weight: 800; color: #9b1c1c; }
.browser-boot__message { margin: 0 0 .5rem; color: #334155; line-height: 1.6; font-size: .92rem; }
.browser-boot__hint { margin: 0 0 .85rem; color: #64748b; font-size: .88rem; line-height: 1.55; }
.browser-boot__actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.catalog-tree__section-label {
  margin: .85rem 0 .35rem;
  padding: 0 .35rem;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: #64748b;
}
.catalog-tree__section-label:first-child { margin-top: 0; }

.catalog-viewer__empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 76px - 8.5rem);
  padding: 2rem;
  text-align: center;
  color: #64748b;
  font-size: .95rem;
  line-height: 1.6;
}

.catalog-tree__node[data-icon="sensor"] { --tree-icon: var(--icon-sensor); --tree-accent: #106878; }
.catalog-tree__node[data-icon="signal"] { --tree-icon: var(--icon-signal); --tree-accent: #6d5bd0; }
.catalog-tree__node[data-icon="power"] { --tree-icon: var(--icon-power); --tree-accent: #e67700; }
.catalog-tree__node[data-icon="doc"] { --tree-icon: var(--icon-doc); --tree-accent: #0f4f9f; }
.catalog-tree__node[data-icon="load"] { --tree-icon: var(--icon-load); --tree-accent: #9c6644; }
.catalog-tree__node[data-icon="chart"] { --tree-icon: var(--icon-chart); --tree-accent: #087f5b; }

#project-browser-detail {
  padding: 1rem 1.1rem 1.5rem;
}

.catalog-viewer__body--scroll {
  overflow: auto;
  background: #fff;
}

.catalog-viewer__body--scroll .catalog-viewer__empty {
  min-height: 40vh;
}

.catalog-viewer__body--scroll .project-detail__hero {
  max-height: none;
}

.catalog-tree__node[data-icon="wall"] { --tree-icon: var(--icon-wall); --tree-accent: #0f4f9f; }
.catalog-tree__node[data-icon="tunnel"] { --tree-icon: var(--icon-tunnel); --tree-accent: #5f3dc4; }
.catalog-tree__node[data-icon="bridge"] { --tree-icon: var(--icon-bridge); --tree-accent: #0b7285; }
.catalog-tree__node[data-icon="slope"] { --tree-icon: var(--icon-slope); --tree-accent: #2f9e44; }
.catalog-tree__node[data-icon="layers"] { --tree-icon: var(--icon-layers); --tree-accent: #e67700; }
.catalog-tree__node[data-icon="dam"] { --tree-icon: var(--icon-dam); --tree-accent: #364fc7; }
.catalog-tree__node[data-icon="wave"] { --tree-icon: var(--icon-wave); --tree-accent: #0c8599; }
.catalog-tree__node[data-icon="rail"] { --tree-icon: var(--icon-rail); --tree-accent: #6741d9; }
.catalog-tree__node[data-icon="building"] { --tree-icon: var(--icon-building); --tree-accent: #9c6644; }
.catalog-tree__node[data-icon="env"] { --tree-icon: var(--icon-env); --tree-accent: #087f5b; }

.catalog-tree__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
}

.catalog-tree__admin-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem;
}

.catalog-tree__admin-user {
  font-size: .75rem;
  font-weight: 600;
  color: #475569;
  margin-right: .15rem;
}

.catalog-tree__group-admin {
  display: inline-flex;
  gap: .1rem;
  margin-left: auto;
}

.browser-admin-dialog__check {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .88rem;
}

.catalog-tree__login-link {
  font-size: .78rem;
  font-weight: 600;
  color: #64748b;
  text-decoration: none;
}

.catalog-tree__login-link:hover {
  color: #0f4f9f;
  text-decoration: underline;
}

.catalog-tree__summary {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
}

.catalog-tree__summary .catalog-tree__node {
  flex: 1;
  min-width: 0;
}

.catalog-tree__handle {
  flex: 0 0 1rem;
  width: 1rem;
  height: 1.2rem;
  margin-right: .15rem;
  cursor: grab;
  opacity: .45;
  background: linear-gradient(180deg, #94a3b8 0, #94a3b8 35%, transparent 35%, transparent 50%, #94a3b8 50%, #94a3b8 85%, transparent 85%);
  background-size: 4px 100%;
  background-position: 2px 0, 8px 0;
  background-repeat: no-repeat;
  border-radius: 2px;
}

.browser--admin .catalog-tree__handle {
  opacity: .85;
}

.catalog-tree__handle:active {
  cursor: grabbing;
}

.catalog-tree__icon-btn {
  flex: 0 0 auto;
  margin-left: auto;
  padding: .15rem .45rem;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #94a3b8;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.catalog-tree__icon-btn--danger:hover {
  background: #fff0f0;
  color: #c92a2a;
}

.catalog-tree__badge {
  font-size: .72rem;
  font-weight: 600;
  color: #94a3b8;
}

.catalog-tree__list li {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.catalog-tree__list li .catalog-tree__node {
  flex: 1;
  min-width: 0;
}

.catalog-tree__list li.is-dragging,
.catalog-tree__group.is-dragging {
  opacity: .55;
}

.catalog-tree__list li.is-drop-target,
.catalog-tree__group.is-drop-target > summary,
ul.catalog-tree__list.is-drop-target {
  outline: 2px dashed #0f4f9f;
  outline-offset: -2px;
  background: #f0f6fc;
}

.browser-admin-toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 1200;
  max-width: min(360px, calc(100vw - 2rem));
  padding: .75rem 1rem;
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 600;
  box-shadow: 0 12px 32px rgba(10, 37, 64, .18);
}

.browser-admin-toast--ok {
  background: #ebfbee;
  color: #2b8a3e;
  border: 1px solid #b2f2bb;
}

.browser-admin-toast--err {
  background: #fff5f5;
  color: #c92a2a;
  border: 1px solid #ffc9c9;
}

.browser-admin-dialog {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 42, 67, .45);
}

.browser-admin-dialog__panel {
  width: min(420px, 100%);
  padding: 1.1rem 1.15rem;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 16px 48px rgba(10, 37, 64, .2);
}

.browser-admin-dialog__title {
  margin: 0 0 .85rem;
  font-size: 1.05rem;
}

.browser-admin-dialog label {
  display: block;
  margin: 0 0 .75rem;
  font-size: .88rem;
  font-weight: 600;
  color: #334155;
}

.browser-admin-dialog input,
.browser-admin-dialog select,
.browser-admin-dialog textarea {
  display: block;
  width: 100%;
  margin-top: .3rem;
  padding: .55rem .65rem;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font: inherit;
  box-sizing: border-box;
}

.browser-admin-dialog__actions {
  display: flex;
  justify-content: flex-end;
  gap: .45rem;
  margin-top: .5rem;
}

.browser-admin-file-btn {
  cursor: pointer;
  margin: 0;
}

.btn--danger {
  background: #c92a2a;
  color: #fff;
}

.btn--danger:hover {
  background: #a61e1e;
}

.project-browser-admin-gallery {
  padding: 0 1.1rem 1.25rem;
  border-top: 1px solid #e8eef4;
}

.project-browser-admin-gallery__title {
  margin: 1rem 0 .65rem;
  font-size: .95rem;
}

.project-browser-admin-gallery__grid {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
}

.project-browser-admin-gallery__item {
  margin: 0;
  width: 120px;
}

.project-browser-admin-gallery__item img {
  display: block;
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
}

.project-browser-admin-gallery__item .btn {
  width: 100%;
  margin-top: .35rem;
}

.project-browser-admin-gallery__hint {
  margin: 1rem 0;
  font-size: .88rem;
  color: #64748b;
}

@media (max-width: 900px) {
  .catalog-browser__layout {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .catalog-tree {
    max-height: 42vh;
  }

  .catalog-viewer__frame,
  .catalog-viewer__empty {
    min-height: 55vh;
  }
}