/* Trang Kiến thức da liễu — artboard KienThuc.dc.html */

/* ---------- Hero + tìm kiếm ---------- */
.kt-hero { padding-top: 32px; padding-bottom: 80px; }
.kt-hero .breadcrumb { margin-bottom: 48px; }
.kt-hero__grid { display: flex; flex-wrap: wrap; gap: 48px; align-items: flex-end; justify-content: space-between; }
.kt-hero__copy { flex: 1 1 560px; min-width: 0; max-width: 720px; }
.kt-hero__copy .h1 { font-size: clamp(36px, 4.8vw, 64px); }
.kt-hero__search { flex: 1 1 360px; min-width: 0; }
@media (max-width: 760px) {
  .kt-hero { padding-bottom: 56px; }
  .kt-hero .breadcrumb { margin-bottom: 28px; }
  .kt-hero__grid { gap: 32px; }
}

.kt-search { position: relative; }
.kt-search__box { display: flex; align-items: center; gap: 12px; height: 56px; padding: 0 7px 0 20px; background: var(--white); border: 1px solid var(--line-strong); border-radius: var(--radius-pill); transition: border-color .15s, box-shadow .15s; }
.kt-search__box:focus-within { border-color: var(--bronze); box-shadow: 0 0 0 3px rgba(166, 90, 20, .15); }
.kt-search__icon { color: var(--muted); }
.kt-search__input { flex: 1; min-width: 0; height: 100%; border: 0; background: transparent; font-size: 16px; color: var(--ink); }
.kt-search__input:focus { outline: none; }
.kt-search__input::-webkit-search-cancel-button { cursor: pointer; }
.kt-search__btn { flex: none; min-height: 44px; padding: 0 20px; border: 0; border-radius: var(--radius-pill); background: var(--ink); color: var(--white); font-weight: 600; font-size: 15px; }
.kt-search__btn:hover { background: var(--espresso); }
.kt-search__list { position: absolute; z-index: 20; left: 0; right: 0; top: calc(100% + 8px); margin: 0; padding: 6px; list-style: none; background: var(--white); border: 1px solid var(--line-strong); border-radius: var(--radius-card); max-height: min(420px, 60vh); overflow-y: auto; }
.kt-search__list[hidden] { display: none; }
.kt-search__opt { display: flex; flex-direction: column; gap: 2px; padding: 10px 14px; border-radius: 10px; color: var(--ink); cursor: pointer; min-height: 44px; }
.kt-search__opt:hover, .kt-search__opt[aria-selected="true"] { background: var(--sand-2); color: var(--ink); }
.kt-search__opt-title { font-weight: 600; font-size: 15px; line-height: 1.4; }
.kt-search__opt-text { font-size: 13px; color: var(--muted); line-height: 1.45; }
.kt-search__msg { padding: 10px 14px; font-size: 14px; color: var(--muted); }
.kt-search__all { display: flex; align-items: center; gap: 8px; min-height: 44px; padding: 8px 14px; font-weight: 600; font-size: 14px; border-top: 1px solid var(--line); margin-top: 4px; }

.kt-chips { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; font-size: 14px; }
.kt-chip { display: inline-flex; align-items: center; min-height: 36px; padding: 6px 14px; border-radius: var(--radius-pill); background: var(--sand-2); color: var(--ink); }
.kt-chip:hover { background: var(--tint); color: var(--ink); }

/* ---------- Kicker / tag dùng chung ---------- */
.kt-kicker { display: block; font-size: 12px; letter-spacing: .12em; color: var(--bronze); font-weight: 600; text-transform: uppercase; line-height: 1.4; }
.kt-tag { font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; background: var(--tint); color: var(--bronze-dark); padding: 4px 12px; border-radius: var(--radius-pill); }

/* ---------- Cụm chủ đề ---------- */
.kt-clusters { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.kt-cluster { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-media); overflow: hidden; background: var(--cream); }
.kt-cluster__img { aspect-ratio: 16 / 9; background: var(--sand-2); overflow: hidden; }
.kt-cluster__img img { width: 100%; height: 100%; object-fit: cover; }
.kt-cluster__body { padding: 28px; display: flex; flex-direction: column; gap: 14px; flex-grow: 1; }
.kt-cluster__title { font-family: var(--serif); font-weight: 500; font-size: 26px; line-height: 1.25; }
.kt-cluster__title a { color: var(--ink); }
.kt-cluster__title a:hover { color: var(--bronze); }
.kt-cluster__list { margin: 0; padding: 0; list-style: none; font-size: 15px; border-top: 1px solid var(--line); }
.kt-cluster__list li { border-bottom: 1px solid var(--line); }
.kt-cluster__list a { display: block; padding: 10px 0; color: var(--ink); line-height: 1.45; }
.kt-cluster__list a:hover { color: var(--bronze); }
.kt-cluster__more { margin-top: auto; align-self: flex-start; }
.kt-cluster--dark { background: var(--espresso); border-color: var(--espresso); color: var(--on-dark); padding: 36px; gap: 16px; }
.kt-cluster--dark .kt-kicker { color: var(--champagne); }
.kt-cluster--dark .kt-cluster__title { color: var(--cream); }
.kt-cluster--dark p { color: var(--on-dark-muted); font-size: 15px; }
.kt-cluster--dark .kt-cluster__cta { margin-top: auto; align-self: flex-start; border-color: var(--champagne); color: var(--on-dark); }
.kt-cluster--dark .kt-cluster__cta:hover { background: var(--on-dark); color: var(--espresso); }
@media (max-width: 760px) {
  .kt-cluster__body { padding: 24px; }
  .kt-cluster--dark { padding: 28px 24px; }
  .kt-cluster__title { font-size: 23px; }
}

/* ---------- Bài nổi bật ---------- */
.kt-featured { padding-top: 96px; padding-bottom: 40px; }
.kt-featured__link { display: flex; flex-wrap: wrap; gap: 48px; align-items: center; color: var(--ink); }
.kt-featured__link:hover { color: var(--ink); }
.kt-featured__img { flex: 1.2 1 460px; min-width: 0; aspect-ratio: 16 / 9; border-radius: var(--radius-media); overflow: hidden; background: var(--sand-2); }
.kt-featured__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.kt-featured__link:hover .kt-featured__img img { transform: scale(1.02); }
.kt-featured__body { flex: 1 1 400px; min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.kt-featured__title { font-family: var(--serif); font-weight: 500; font-size: clamp(28px, 3.2vw, 42px); line-height: 1.2; text-wrap: balance; }
.kt-featured__link:hover .kt-featured__title { color: var(--bronze); }
.kt-byline { display: flex; gap: 12px; align-items: center; border-top: 1px solid var(--line); padding-top: 18px; font-size: 14px; line-height: 1.4; }
.kt-byline img { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; flex: none; }
.kt-byline > span { display: flex; flex-direction: column; }
.kt-byline strong { font-weight: 600; }
@media (max-width: 760px) {
  .kt-featured { padding-top: 64px; }
  .kt-featured__link { gap: 24px; }
  .kt-featured__img, .kt-featured__body { flex-basis: 100%; }
}

/* ---------- Đọc nhiều ---------- */
.kt-popular { padding-top: 56px; }
.kt-popular__title { font-weight: 500; font-size: 26px; margin-bottom: 20px; }
.kt-popular__list { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 0 24px; border-top: 1px solid var(--line); }
.kt-popular__list li { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.kt-popular__num { font-family: var(--serif); font-size: 30px; line-height: 1; color: var(--bronze); flex: none; min-width: 2ch; }
.kt-popular__list a { display: flex; flex-direction: column; gap: 6px; color: var(--ink); }
.kt-popular__list a:hover .kt-popular__name { color: var(--bronze); }
.kt-popular__name { font-family: var(--serif); font-size: 19px; line-height: 1.35; }

/* ---------- Bài viết mới ---------- */
.kt-latest { padding-top: 72px; }
.kt-latest__head { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; margin-bottom: 32px; }
.kt-filter { display: flex; gap: 8px; flex-wrap: wrap; font-size: 14px; font-weight: 500; }
.kt-filter__item { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 16px; border-radius: var(--radius-pill); border: 1px solid var(--champagne); color: var(--ink); }
.kt-filter__item:hover { border-color: var(--ink); color: var(--ink); }
.kt-filter__item[aria-current="page"] { background: var(--ink); border-color: var(--ink); color: var(--white); }
@media (max-width: 760px) {
  .kt-latest { padding-top: 48px; }
  .kt-filter { flex-wrap: nowrap; overflow-x: auto; margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); scrollbar-width: none; }
  .kt-filter__item { flex: none; }
}

/* ---------- Cam kết nội dung ---------- */
.kt-trust { background: var(--sand-2); }
.kt-trust__grid { padding-block: 56px; display: grid; gap: 32px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
.kt-trust__item { display: flex; gap: 16px; align-items: flex-start; }
.kt-trust__item .ic { color: var(--bronze); }
.kt-trust__item > span { display: flex; flex-direction: column; gap: 4px; }
.kt-trust__item strong { font-weight: 600; }
.kt-trust__item .muted { font-size: 15px; }