/* ============================================================
   uu-dai.css — Mega menu mục "Ưu đãi" — nạp TOÀN SITE ((khi)/layout.tsx).
   CHỈ chứa style mega menu. Style trang campaign ở uu-dai-page.css (chỉ nạp trên trang đó)
   — tách vì trang campaign dùng tên class chung (.proof trùng special-deals).
   CHỈ dùng token của style-v5.css (cream · sage · clay · Be Vietnam Pro).
   Không thêm màu/font mới → trang hoà vào khiwellness.com.
   ============================================================ */

/* ---------- 1 · MEGA MENU "Ưu đãi" ---------- */
.nav { position: relative; }
.mega { display: flex; align-items: center; }
.nav .mega-trigger {
  appearance: none; background: none; border: 0; cursor: pointer;
  font: inherit; font-size: .95rem; color: var(--ink-soft);
  padding: 12px 2px; display: inline-flex; align-items: center; gap: 6px; position: relative;
  transition: color var(--t);
}
.nav .mega-trigger::after { content: ''; position: absolute; left: 0; bottom: 6px; height: 1px; width: 0; background: var(--ink); transition: width var(--t); }
.nav .mega-trigger:hover, .mega.open .mega-trigger { color: var(--ink); }
.nav .mega-trigger:hover::after, .mega.open .mega-trigger::after { width: 100%; }
.mega-trigger .new-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--clay); }
.mega-trigger .chev { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; transition: transform var(--t); }
.mega.open .mega-trigger .chev { transform: rotate(180deg); }

.mega-panel {
  position: absolute; left: 0; right: 0; top: calc(100% + 10px);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-xl);
  box-shadow: 0 30px 60px -32px rgba(33,36,29,.38);
  padding: 28px; display: grid; grid-template-columns: 1fr 1fr 1.1fr; gap: 28px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
}
.mega-panel::before { content: ''; position: absolute; left: 0; right: 0; top: -14px; height: 14px; } /* cầu nối hover */
.mega.open .mega-panel { opacity: 1; visibility: visible; transform: none; }
.mega-col h6 { margin: 0 0 8px 10px; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--sage-text); font-weight: 600; }

.mega-link { display: grid; grid-template-columns: 36px 1fr; gap: 12px; align-items: start; padding: 10px; border-radius: var(--r-md); transition: background var(--t); }
.mega-link:hover { background: var(--cream); }
.mega-link .mi { width: 36px; height: 36px; border-radius: 10px; background: var(--sage-wash); color: var(--sage-deep); display: grid; place-items: center; }
.mega-link .mi svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.mega-link .t { display: block; min-width: 0; }
.mega-link b { display: block; font-weight: 500; color: var(--ink); font-size: .95rem; }
.mega-link small { display: block; font-size: .82rem; color: var(--ink-faint); line-height: 1.4; margin-top: 2px; }
/* mô tả 2 dòng: balance chia đều (pretty vẫn bẻ đôi từ ghép "cơ ⏎ thể") +   trong megaUuDai.ts dính từ ghép */
.mega-link small, .mega-feat p { text-wrap: balance; }
.mega-tag { display: inline-block; font-size: .64rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; background: var(--clay-wash); color: var(--clay-press); padding: 2px 7px; border-radius: 999px; margin-left: 6px; vertical-align: 2px; }

.mega-offer { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 11px 10px; border-radius: var(--r-md); border-bottom: 1px solid var(--line); transition: background var(--t); }
.mega-offer:last-child { border-bottom: 0; }
.mega-offer:hover { background: var(--cream); }
.mega-offer b { font-weight: 500; color: var(--ink); font-size: .93rem; }
.mega-offer em { font-style: normal; font-size: .9rem; color: var(--clay-text); white-space: nowrap; font-weight: 500; }

.mega-feat { display: grid; grid-template-rows: auto 1fr; background: var(--cream); border-radius: var(--r-lg); overflow: hidden; transition: transform var(--t); }
.mega-feat:hover { transform: translateY(-2px); }
.mega-feat .img, .mega-feat .txt { display: block; }
.mega-feat .img { aspect-ratio: 16/9; overflow: hidden; }
.mega-feat .img img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 40%; }
.mega-feat .txt { padding: 16px 18px 18px; }
.mega-feat .live { display: inline-flex; align-items: center; gap: 6px; font-size: .72rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--sage-text); }
.mega-feat .live::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--sage); box-shadow: 0 0 0 4px var(--sage-wash); }
.mega-feat h4 { margin: 8px 0 4px; font-size: 1.1rem; font-weight: 500; }
.mega-feat p { margin: 0; font-size: .88rem; color: var(--ink-soft); }
.mega-feat p b { color: var(--ink); font-weight: 600; }

.mega-foot { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; gap: 16px; border-top: 1px solid var(--line); padding: 16px 10px 0; font-size: .9rem; }
.mega-foot a { color: var(--ink-soft); }
.mega-foot a:hover { color: var(--clay-text); }

@media (min-width: 901px) { .nav .mega { align-self: stretch; } }   /* vùng rê phủ kín chiều cao thanh → không hụt khi kéo chuột xuống panel */

@media (max-width: 900px) {
  .anim .nav .mega { display: none; }
  .anim .nav-wrap.open .nav .mega { display: block; flex: 0 0 100%; border-top: 1px solid var(--line); }
  .nav .mega-trigger { width: 100%; justify-content: flex-start; padding: 13px 2px; }
  .nav .mega-trigger .chev { margin-left: auto; }
  .nav .mega-trigger::after { content: none; }
  .mega-panel { position: static; display: none; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; border-radius: 0; padding: 0 0 12px; grid-template-columns: 1fr; gap: 14px; }
  .mega-panel::before { content: none; }
  .mega.open .mega-panel { display: grid; }
  .mega-feat { grid-template-columns: 96px 1fr; grid-template-rows: none; }
  .mega-feat .img { aspect-ratio: auto; height: 100%; }
  .mega-foot { flex-direction: column; align-items: flex-start; padding: 12px 10px 0; }
  html:not(.anim) .mega-panel { display: none; }
}