/* ════════════════════════════════════════════════════════════════════
   EXAM SYSTEM — "إدارة الاختبارات" (موديول مستقل، هوية جامعة حائل).
   قابل للإزالة بالكامل: احذف سطر <link> + سطور <script> + مجلد
   assets/js/exam-system/.  كل الأنماط مُنطّقة تحت .exs-* فقط.
   ════════════════════════════════════════════════════════════════════ */
:root{
  --exs-blue:#0a3d62; --exs-blue2:#12598c; --exs-blue3:#1b7fb8;
  --exs-gold:#c9a227; --exs-gold-soft:rgba(201,162,39,.14);
  --exs-blue-soft:rgba(18,89,140,.12);
  --exs-grad:linear-gradient(135deg,#0a3d62 0%,#12598c 55%,#1b7fb8 100%);
}

/* بطاقة الرئيسية: لمسة ذهبية خفيفة فوق نمط .grid-tile الموجود */
.grid-tile[data-exs-tile]{
  background:linear-gradient(135deg,rgba(201,162,39,.09),rgba(18,89,140,.04));
  border:1px solid rgba(201,162,39,.30);
}
.grid-tile[data-exs-tile] .tile-icon{text-shadow:0 0 14px rgba(201,162,39,.40)}

#pg-exam-system{padding-bottom:40px}

.exs-hero{
  position:relative;overflow:hidden;border-radius:18px;padding:24px 28px;
  background:var(--exs-grad);color:#fff;margin:14px 0 18px;
  box-shadow:0 10px 30px rgba(10,61,98,.32);
}
.exs-hero::after{content:"";position:absolute;top:-60px;left:-40px;width:220px;height:220px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,162,39,.18),transparent 65%)}
.exs-hero h2{font-size:1.4rem;font-weight:800;margin:0 0 4px;position:relative;z-index:1}
.exs-hero p{font-size:.85rem;opacity:.85;margin:0;position:relative;z-index:1}
.exs-hero .exs-badge{display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  padding:5px 14px;border-radius:20px;font-size:.72rem;font-weight:700;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);position:relative;z-index:1}

.exs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(165px,1fr));gap:12px}
.exs-card{background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:18px 16px;cursor:pointer;transition:transform .18s,border-color .18s,box-shadow .18s;
  display:flex;flex-direction:column;gap:7px}
.exs-card:hover{transform:translateY(-4px);border-color:var(--exs-gold);box-shadow:0 10px 26px rgba(10,61,98,.20)}
.exs-card .exs-ic{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;
  justify-content:center;font-size:1.25rem;color:#fff;background:var(--exs-grad)}
.exs-card .exs-t{font-weight:700;font-size:.95rem;color:var(--text)}
.exs-card .exs-d{font-size:.72rem;color:var(--muted)}
.exs-card.locked{opacity:.62;cursor:default}
.exs-card.locked:hover{transform:none;border-color:var(--border);box-shadow:none}

.exs-stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(135px,1fr));gap:10px;margin-bottom:16px}
.exs-stat{border-radius:14px;padding:16px 14px;text-align:center;background:var(--exs-blue-soft);
  border:1px solid var(--exs-blue-soft)}
.exs-stat .v{font-size:1.6rem;font-weight:800;color:var(--exs-blue3)}
.exs-stat .l{font-size:.72rem;color:var(--muted);margin-top:3px}
.exs-stat.ok{background:rgba(81,207,102,.10);border-color:rgba(81,207,102,.25)} .exs-stat.ok .v{color:#51cf66}
.exs-stat.warn{background:rgba(245,158,11,.10);border-color:rgba(245,158,11,.25)} .exs-stat.warn .v{color:#f59e0b}
.exs-stat.bad{background:rgba(255,107,107,.10);border-color:rgba(255,107,107,.25)} .exs-stat.bad .v{color:#ff6b6b}

.exs-soon{text-align:center;padding:48px 22px;color:var(--muted);
  border:1px dashed var(--border);border-radius:16px;background:var(--glass,rgba(255,255,255,.02))}
.exs-soon .ic{font-size:2.6rem;margin-bottom:12px}
.exs-soon .ph{display:inline-block;margin-top:14px;padding:5px 14px;border-radius:20px;
  font-size:.72rem;font-weight:700;background:var(--exs-gold-soft);color:var(--exs-gold)}

.exs-btn{padding:10px 22px;border-radius:10px;border:none;cursor:pointer;font-family:inherit;
  font-weight:700;font-size:.85rem;color:#fff;background:var(--exs-grad);transition:filter .18s,transform .12s}
.exs-btn:hover{filter:brightness(1.08)} .exs-btn:active{transform:scale(.97)}
.exs-btn.ghost{background:transparent;color:var(--exs-blue3);border:1px solid var(--exs-blue3)}
.exs-btn.sm{padding:6px 14px;font-size:.78rem}
.exs-btn.danger{background:linear-gradient(135deg,#c0392b,#e74c3c)}

.exs-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px}
.exs-bar .sp{flex:1}

.exs-toolbar{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px;border-bottom:1px solid var(--border);padding-bottom:10px}
.exs-tab{padding:7px 14px;border-radius:9px;border:1px solid var(--border);background:transparent;
  color:var(--muted);cursor:pointer;font-family:inherit;font-weight:700;font-size:.78rem;transition:all .15s}
.exs-tab.on{background:var(--exs-blue-soft);color:var(--exs-blue3);border-color:var(--exs-blue3)}

.exs-row{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--border);
  border-radius:12px;background:var(--card);margin-bottom:8px}
.exs-row .exs-row-t{font-weight:700;font-size:.92rem;color:var(--text)}
.exs-row .exs-row-s{font-size:.74rem;color:var(--muted);margin-top:2px}
.exs-pill{display:inline-block;padding:3px 10px;border-radius:14px;font-size:.68rem;font-weight:700}

.exs-field{margin-bottom:14px}
.exs-field label{display:block;font-size:.8rem;font-weight:700;color:var(--text);margin-bottom:6px}
.exs-field .hint{font-size:.7rem;color:var(--muted);font-weight:400;margin-right:6px}
.exs-input,.exs-select,.exs-textarea{width:100%;padding:10px 12px;border-radius:10px;
  border:1px solid var(--border);background:var(--inputBg,var(--card2));color:var(--text);
  font-family:inherit;font-size:.88rem;box-sizing:border-box}
.exs-textarea{min-height:84px;resize:vertical}
.exs-input:focus,.exs-select:focus,.exs-textarea:focus{outline:none;border-color:var(--exs-blue3)}
.exs-2col{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:640px){.exs-2col{grid-template-columns:1fr}}

.exs-steps{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:18px}
.exs-step{flex:1;min-width:90px;text-align:center;padding:8px 4px;border-radius:9px;font-size:.7rem;
  font-weight:700;background:var(--card2);color:var(--muted);border:1px solid var(--border);cursor:pointer}
.exs-step.on{background:var(--exs-grad);color:#fff;border-color:transparent}
.exs-step.done{background:rgba(81,207,102,.12);color:#51cf66;border-color:rgba(81,207,102,.3)}

.exs-langtabs{display:flex;gap:4px;margin-bottom:8px}
.exs-langtab{padding:5px 14px;border-radius:8px 8px 0 0;border:1px solid var(--border);border-bottom:none;
  background:var(--card2);color:var(--muted);cursor:pointer;font-family:inherit;font-weight:700;font-size:.74rem}
.exs-langtab.on{background:var(--exs-blue-soft);color:var(--exs-blue3)}

.exs-qopt{display:flex;align-items:center;gap:10px;padding:8px 10px;border:1px solid var(--border);
  border-radius:9px;margin-bottom:6px;background:var(--card2)}
.exs-qopt.correct{border-color:#51cf66;background:rgba(81,207,102,.08)}
.exs-empty{text-align:center;padding:40px 20px;color:var(--muted)}
.exs-empty .ic{font-size:2.2rem;margin-bottom:10px;opacity:.7}