/* ==========================================================================
   Mega Menu — dropdown ใต้แถบหมวดหมู่ (.bk-menu)
   ========================================================================== */
.bk-menu{ position: relative; }
.bk-menu .container{ position: relative; }

/* nav-link ที่มีเมนูย่อยแบบ mega — เผื่อไอคอนลูกศรในอนาคต */
.bk-menu .nav-link.has-mega{ position: relative; }

.mega-panel{
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: 0 18px 40px rgba(15, 23, 42, .16);
  padding: 22px 24px;
  animation: megaFadeIn .16s ease;
}
.mega-panel.is-open{ display: block; }

@keyframes megaFadeIn{
  from{ opacity: 0; transform: translateY(-6px); }
  to{ opacity: 1; transform: translateY(0); }
}

.mega-panel-inner{
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

/* ---------- Sidebar (หมวดย่อย) ---------- */
.mega-sidebar{
  flex: 0 0 200px;
  width: 200px;
  border-right: 1px solid var(--border-color);
  padding-right: 20px;
}
.mega-sidebar-title{
  font-size: .82rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding: 0 10px;
}
.mega-sidebar-list{
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mega-sidebar-link{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: .92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background .15s ease, color .15s ease;
}
.mega-sidebar-link i{ font-size: .8rem; color: var(--text-muted); }
.mega-sidebar-link:hover{
  background: var(--bg-body);
  color: var(--text-primary);
}
.mega-sidebar-link.is-active{
  background: rgba(45, 212, 191, .1);
  color: var(--accent);
  font-weight: 700;
}
.mega-sidebar-link.is-active i{ color: var(--accent); }

/* ---------- Content (บทความแนะนำ) ---------- */
.mega-content{ flex: 1 1 auto; min-width: 0; }
.mega-content-head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.mega-content-title{
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
}
.mega-view-all{
  font-size: .85rem;
  font-weight: 700;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.mega-view-all:hover{ text-decoration: underline; }

.mega-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.mega-card{ display: block; color: inherit; }
.mega-card-img-wrap{
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-body);
  aspect-ratio: 16/10;
}
.mega-card-img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .2s ease;
}
.mega-card:hover .mega-card-img{ transform: scale(1.05); }
.mega-card-body{ padding-top: 10px; }
.mega-card-title{
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.mega-card:hover .mega-card-title{ color: var(--accent); }
.mega-card-meta{
  font-size: .76rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
}
.mega-card-meta i{ font-size: .74rem; }
.mega-dot{ opacity: .6; }
.mega-empty{
  color: var(--text-muted);
  font-size: .9rem;
  padding: 20px 0;
}

/* Loading skeleton (แสดงชั่วคราวระหว่างรอ fetch ครั้งแรก) */
.mega-loading{
  padding: 30px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: .88rem;
}

/* ปิด mega menu บนมือถือ/แท็บเล็ตเสมอ — ใช้เมนูแบบเลื่อนแนวนอนแทน */
@media (max-width: 991.98px){
  .mega-panel{ display: none !important; }
}

@media (max-width: 1199.98px){
  .mega-grid{ grid-template-columns: repeat(2, 1fr); }
}