/* ===== RadCase FullscreenViewer — копия radiopaedia.org ===== */
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%;background:#0d0f13;color:#d7dce2;font:14px/1.4 -apple-system,'Segoe UI',Roboto,Arial,sans-serif;overscroll-behavior:none}
body[data-fullscreen="true"]{overflow:hidden}

.FullscreenViewer{position:fixed;inset:0;display:flex;flex-direction:column;background:#0d0f13}

/* ===== Верхний тулбар (56px как у radiopaedia) ===== */
.fs-toolbar{height:56px;flex:0 0 56px;display:flex;align-items:center;gap:6px;padding:0 10px;background:#14171c;border-bottom:1px solid #262b33;z-index:10}
.fs-exit{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:6px;color:#9ba0a5;text-decoration:none;flex:0 0 auto}
.fs-exit:hover{background:#23282f;color:#fff}
.fs-title{flex:1;min-width:0;display:flex;align-items:center;gap:10px;padding:0 8px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.fs-mod{background:#2a5c8f;color:#dbeafe;font-size:11px;font-weight:700;padding:3px 8px;border-radius:4px;letter-spacing:.5px;flex:0 0 auto}
.fs-title span:not(.fs-mod){overflow:hidden;text-overflow:ellipsis;font-weight:600}
.fs-actions{display:flex;align-items:center;gap:4px;flex:0 0 auto}
.fs-actions button,.fs-actions a{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:none;border:1px solid transparent;border-radius:6px;color:#9ba0a5;font-size:16px;cursor:pointer;text-decoration:none}
.fs-actions button:hover,.fs-actions a:hover{background:#23282f;color:#fff;border-color:#333a44}
.fs-actions button.on{background:#1d4ed8;color:#fff;border-color:#2563eb}

/* ===== Сайдбар серий (285px как у radiopaedia) ===== */
.fs-sidebar{position:fixed;top:56px;left:0;bottom:0;width:285px;display:flex;flex-direction:column;background:#101318;border-right:1px solid #262b33;z-index:5}
.fs-sidebar-head{padding:12px 14px;font-size:12px;font-weight:700;color:#8b93a0;letter-spacing:.8px;text-transform:uppercase;border-bottom:1px solid #1d222a}
.fs-series-list{flex:1;overflow-y:auto;padding:8px}
.fs-series-item{display:flex;gap:10px;padding:8px;border-radius:8px;cursor:grab;border:1px solid transparent;margin-bottom:4px;user-select:none}
.fs-series-item:hover{background:#1a1f27}
.fs-series-item.dragging{opacity:.4}
.fs-series-item img{width:64px;height:64px;object-fit:cover;border-radius:6px;background:#000;flex:0 0 auto;border:1px solid #2a303a}
.fs-noimg{width:64px;height:64px;display:flex;align-items:center;justify-content:center;background:#000;color:#5a6270;font-weight:700;border-radius:6px;flex:0 0 auto}
.fs-si-info{min-width:0;display:flex;flex-direction:column;gap:2px;justify-content:center}
.fs-si-info b{font-size:13px;color:#e8ebef}
.fs-si-desc{font-size:11px;color:#8b93a0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fs-si-count{font-size:11px;color:#5a6270}
.fs-sidebar-foot{padding:10px 14px;border-top:1px solid #1d222a}
.fs-sidebar-foot a{color:#9ba0a5;text-decoration:none;font-size:12px}
.fs-sidebar-foot a:hover{color:#fff}

/* ===== Сетка вьюпортов ===== */
.fs-grid{position:absolute;top:56px;left:285px;right:0;bottom:0;display:grid;gap:6px;padding:6px;background:#0d0f13}
.fs-grid[data-layout="1x1"]{grid-template-columns:1fr;grid-template-rows:1fr}
.fs-grid[data-layout="2x2"]{grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr}
.fs-grid[data-layout="3x3"]{grid-template-columns:1fr 1fr 1fr;grid-template-rows:1fr 1fr 1fr}
.fs-grid[data-layout="4x4"]{grid-template-columns:1fr 1fr 1fr 1fr;grid-template-rows:1fr 1fr 1fr 1fr}

.fs-viewport{position:relative;background:#0a0c0f;border:1px solid #1c2129;border-radius:6px;overflow:hidden;min-height:0;min-width:0}
.fs-viewport.active{border-color:#2563eb;box-shadow:inset 0 0 0 1px #2563eb}
.fs-viewport.drop-hover{border-color:#22c55e;box-shadow:inset 0 0 0 2px #22c55e}
.fs-viewport[hidden]{display:none}

.fs-vp-stage{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.fs-vp-img{max-width:100%;max-height:100%;object-fit:contain;transform-origin:center;user-select:none;-webkit-user-drag:none;display:none}
.fs-vp-empty{color:#3a424e;font-size:14px;text-align:center;padding:20px}

.fs-vp-label{position:absolute;top:8px;left:10px;background:rgba(13,15,19,.75);color:#c8ced6;font-size:11px;font-weight:600;padding:3px 8px;border-radius:4px;z-index:2;max-width:70%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fs-vp-info{position:absolute;bottom:8px;left:10px;right:10px;display:flex;justify-content:space-between;align-items:center;z-index:2;pointer-events:none}
.fs-vp-counter{background:rgba(13,15,19,.75);color:#9ba0a5;font-size:11px;padding:2px 8px;border-radius:4px}
.fs-vp-stack{background:rgba(29,78,216,.9);color:#dbeafe;font-size:10px;font-weight:700;padding:2px 8px;border-radius:4px;letter-spacing:.5px;display:none}

/* скроллбар сайдбара */
.fs-series-list::-webkit-scrollbar{width:8px}
.fs-series-list::-webkit-scrollbar-thumb{background:#2a303a;border-radius:4px}
.fs-series-list::-webkit-scrollbar-track{background:transparent}

@media(max-width:900px){
  .fs-sidebar{width:200px}
  .fs-grid{left:200px}
  .fs-si-desc{display:none}
  .fs-vp-label{font-size:10px}
}