/* لوحة الشرائح — شاشة واحدة: مصغّرات + معاينة + تحرير */
.sb-head{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:10px}
.sb-search{border:1px solid var(--line);border-radius:10px;padding:7px 12px;min-width:220px;font:inherit;color:var(--ink);background:#fff;margin:0}
.sb{display:grid;grid-template-columns:166px minmax(0,1fr);gap:12px;align-items:start}

/* ── شريط المصغّرات ── */
.sb-strip{max-height:calc(100vh - 118px);overflow:auto;padding:2px 4px 2px 8px;border-left:1px solid var(--line);
  display:flex;flex-direction:column;align-items:flex-start;gap:0}
.sb-ax{position:sticky;top:0;z-index:3;width:100%;flex:0 0 100%;background:var(--bg);padding:7px 4px 5px;font-weight:800;font-size:13px;color:var(--teald);
  border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:6px}
.sb-ax .n{font-weight:500;font-size:11.5px;color:var(--muted)}
.sb-th{position:relative;width:152px;flex:0 0 152px;border:2px solid transparent;border-radius:12px;padding:5px;margin:5px 0;cursor:pointer;background:#fff;
  box-shadow:0 1px 4px rgba(11,60,80,.07);transition:border-color .12s,opacity .12s}
.sb-th:hover{border-color:var(--line)}
.sb-th.sel{border-color:var(--teal);box-shadow:0 2px 12px rgba(11,127,174,.22)}
.sb-th.hid{opacity:.5;filter:grayscale(.75)}
.sb-th.drop{border-color:var(--gold);border-style:dashed}
.sb-fr{position:relative;width:140px;height:79px;overflow:hidden;border-radius:8px;background:var(--ivory);border:1px solid var(--line)}
.sb-scale{position:absolute;top:0;right:0;width:1000px;height:562px;transform:scale(.140);transform-origin:top right;pointer-events:none}
.sb-scale .slide{height:562px!important;border-radius:0;border:0}
.sb-cap{font-size:10.5px;font-weight:700;color:var(--ink);margin-top:5px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sb-no{position:absolute;top:6px;right:6px;z-index:2;background:rgba(255,255,255,.94);border:1px solid var(--line);
  border-radius:6px;min-width:22px;height:19px;display:grid;place-items:center;font-size:10.5px;font-weight:800;color:var(--teald)}
.sb-th.hid .sb-no{color:var(--muted);text-decoration:line-through;text-decoration-thickness:2px}
.sb-eye{position:absolute;top:6px;left:6px;z-index:2;background:rgba(255,255,255,.94);border:1px solid var(--line);
  border-radius:6px;width:22px;height:19px;display:grid;place-items:center;cursor:pointer;color:var(--teal);padding:0}
.sb-th.hid .sb-eye{color:var(--muted)}
.sb-badge{position:absolute;bottom:28px;left:6px;z-index:2;background:var(--gold);color:#fff;border-radius:6px;
  font-size:10px;font-weight:800;padding:2px 6px}
.sb-ph{display:grid;place-items:center;height:100%;color:var(--muted);font-size:11px}

/* ── المعاينة والتحرير ── */
.sb-prev{border:1px solid var(--line);border-radius:14px;background:var(--bg);padding:10px;overflow:hidden}
.sb-stage{position:relative;width:100%;min-height:200px;overflow:hidden;border-radius:10px}
.sb-stage .sb-scale{width:1000px;height:562px;transform-origin:top right}
.sb-bar{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:10px 0 4px}
.sb-edit label{display:block;font-size:12px;font-weight:700;color:var(--teald);margin:9px 0 3px}
.sb-edit input,.sb-edit textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:8px 10px;font:inherit;
  color:var(--ink);background:#fff;margin:0;line-height:1.8}
.sb-edit textarea{resize:vertical}
.sb-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
@media (max-width:760px){.sb-grid{grid-template-columns:1fr}}
.sb-dirty{color:var(--gold);font-weight:800;font-size:12px}
.sb-note{font-size:12px;color:var(--muted);line-height:1.9}

/* الشاشات الضيّقة: الشريط يصير صفوفاً فوق المعاينة — يجب أن يأتي بعد القواعد الأساسية */
@media (max-width:820px){
  .sb{grid-template-columns:1fr}
  .sb-strip{flex-direction:row;flex-wrap:wrap;gap:0 10px;max-height:42vh;border-left:0;border-bottom:1px solid var(--line);padding:2px 4px 8px}
  .sb-ax{position:static}
}

/* ── ملاحظات المدرّب على الشريحة ── */
.sb-nlab{display:block;font-size:12px;font-weight:700;color:#9A7209;margin:14px 0 3px}
.sb-nbox{width:100%;border:1px solid #E6D3A8!important;border-radius:9px;background:#FDFAF3!important;
  padding:8px 10px;font:inherit;color:var(--ink);line-height:1.8;resize:vertical}
.sb-nbox:focus{outline:none;border-color:var(--gold)!important}
.sb-nmark{position:absolute;bottom:34px;right:8px;z-index:2;background:var(--gold);color:#fff;
  border-radius:6px;width:22px;height:20px;display:grid;place-items:center}
.sb-th.hid .sb-nmark{opacity:.6}
.sb-nwrap{position:fixed;inset:0;z-index:9000;background:rgba(11,42,51,.42);display:grid;place-items:center;padding:16px}
.sb-npanel{background:var(--bg);border:1px solid var(--line);border-radius:16px;width:min(760px,100%);
  max-height:84vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 12px 40px rgba(11,42,51,.28)}
.sb-nbar{display:flex;gap:8px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);background:#fff}
.sb-nbody{overflow:auto;padding:6px 14px 14px}
.sb-nrow{border-bottom:1px solid var(--line);padding:11px 0}
.sb-nrow:last-child{border-bottom:0}
.sb-nhd{display:flex;gap:10px;align-items:center;margin-bottom:5px}
.sb-ntx{white-space:pre-wrap;line-height:1.9;color:var(--ink);background:#FDFAF3;border-right:3px solid var(--gold);
  border-radius:0 9px 9px 0;padding:8px 11px}

/* الانتقال المباشر برقم الشريحة */
.sb-go{border:1px solid var(--line);border-radius:10px;padding:7px 12px;width:150px;font:inherit;font-size:14px;font-weight:700;
  color:var(--teald);background:#fff;margin:0;text-align:center}
.sb-go::placeholder{font-size:12.5px;font-weight:600;color:#8aa2a8}
.sb-go::-webkit-outer-spin-button,.sb-go::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.sb-go{-moz-appearance:textfield}
/* معاينةٌ أكبر */
.sb-prev{padding:12px}
.sb-stage{min-height:260px}
@media (min-width:1100px){.sb-stage{min-height:380px}}
@media (min-width:1500px){.sb-stage{min-height:460px}}

/* حالة الملاحظة — مفتوحة أو معالَجة */
.sb-ndone{float:inline-end;font-weight:600;font-size:12px;color:#07526A;display:inline-flex;align-items:center;gap:5px;cursor:pointer}
.sb-ndone input{accent-color:#07526A;width:14px;height:14px;cursor:pointer}
.sb-nrow.done{opacity:.55}
.sb-nrow.done .sb-ntx{text-decoration:line-through;text-decoration-color:rgba(0,0,0,.28)}
.sb-nchip{background:#E6F3F0;color:#0C6B54;border:1px solid #BFE3D8;border-radius:999px;padding:1px 9px;font-size:11px;font-weight:700;margin-inline-start:8px}