/* ============================================================================
   tanro — Thư viện component
   ============================================================================ */

/* ---------------------------------------------------------------- Nút - */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .78rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: var(--fs-sm);
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease), background var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease),
              box-shadow var(--t) var(--ease);
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--brand);
  color: var(--brand-fg);
  box-shadow: var(--sh-glow);
}
.btn--primary:hover { background: var(--brand-lift); box-shadow: var(--sh-md); }

.btn--light { background: var(--ink); color: var(--bg); }
.btn--light:hover { background: var(--brand); color: var(--brand-fg); }

.btn--outline {
  border-color: var(--line-strong);
  color: var(--ink);
  background: transparent;
}
.btn--outline:hover { border-color: var(--brand); color: var(--brand-lift); background: var(--brand-soft); }

.btn--ghost { color: var(--ink-2); }
.btn--ghost:hover { background: var(--bg-elev); color: var(--ink); }

.btn--sm { padding: .52rem 1rem; font-size: var(--fs-xs); }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: var(--fs-sm);
  font-weight: 650;
  color: var(--ink-2);
  transition: color var(--t-fast) var(--ease);
}
.link-arrow .icon { transition: transform var(--t) var(--ease-out); }
.link-arrow:hover { color: var(--brand-lift); }
.link-arrow:hover .icon { transform: translateX(4px); }

/* --------------------------------------------------- Nhãn chuyên mục - */
.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .28rem .62rem;
  border-radius: var(--r-xs);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
  line-height: 1.6;
}
.tag--solid { background: var(--accent); color: #08120c; }
.tag--dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.tag--glass {
  background: rgba(10, 13, 12, .6);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .16);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .45rem .9rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--bg-elev);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--ink-2);
  transition: all var(--t-fast) var(--ease);
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.is-active { background: var(--brand); border-color: var(--brand); color: var(--brand-fg); }

/* --------------------------------------------------- Dòng thông tin phụ - */
.meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .8rem;
  font-size: var(--fs-xs);
  color: var(--ink-3);
}
.meta > * { display: inline-flex; align-items: center; gap: .32rem; }
.meta .icon { width: 1.05em; height: 1.05em; }

/* -------------------------------------- Bộ lọc dạng phân đoạn & xem - */
.segmented {
  display: inline-flex;
  gap: .2rem;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--bg-elev);
}
.segmented a {
  padding: .45rem 1rem;
  border-radius: var(--r-pill);
  font-size: var(--fs-sm);
  font-weight: 650;
  color: var(--ink-3);
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.segmented a:hover { color: var(--ink); }
.segmented a.is-active { background: var(--brand); color: var(--brand-fg); }

.view-toggle {
  display: none;
  gap: .2rem;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--bg-elev);
}
@media (min-width: 900px) { .view-toggle { display: inline-flex; } }
.view-toggle button {
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border: 0;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--ink-3);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.view-toggle button:hover { color: var(--ink); }
.view-toggle button.is-active { background: var(--brand); color: var(--brand-fg); }

/* ------------------------------------------------------------ Thẻ bài - */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .8rem;
  min-width: 0;
}

.card__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-md);
  background: var(--bg-sunken);
}
.card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow) var(--ease-out);
}
.card:hover .card__media img { transform: scale(1.06); }

.card__media--overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.06) 0%, rgba(0,0,0,.12) 38%, rgba(0,0,0,.62) 72%, rgba(0,0,0,.92) 100%);
  pointer-events: none;
}

.card__badges {
  position: absolute;
  top: .85rem; left: .85rem;
  z-index: 2;
  display: flex;
  gap: .35rem;
}

.card__title {
  font-size: var(--fs-lg);
  font-weight: 700;
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-tight);
  color: var(--ink);
}
.card__title a {
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 0% 1.5px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size var(--t) var(--ease-out);
}
.card:hover .card__title a { background-size: 100% 1.5px; }

.card__excerpt { font-size: var(--fs-sm); line-height: 1.62; color: var(--ink-3); }

/* Toàn thẻ bấm được nhưng vẫn giữ ngữ nghĩa cho link tiêu đề */
.card__link::after { content: ""; position: absolute; inset: 0; z-index: 3; }

/* --- Biến thể: chữ đè lên ảnh (kiểu chủ đạo của thiết kế) ------------- */
.card--overlay {
  position: relative;
  justify-content: flex-end;
  min-height: 230px;
  padding: 1.15rem;
  border-radius: var(--r-lg);
  overflow: hidden;
  isolation: isolate;
  color: #fff;
}
.card--overlay .card__media { position: absolute; inset: 0; border-radius: inherit; }
.card--overlay .card__body { position: relative; z-index: 2; display: grid; gap: .45rem; }
.card--overlay .card__title { color: #fff; }
.card--overlay .card__excerpt,
.card--overlay .meta { color: rgba(255, 255, 255, .74); }
.card--overlay .card__eyebrow {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, .66);
}

/* --- Biến thể: hàng ngang, ảnh nhỏ bên trái -------------------------- */
.card--row { flex-direction: row; gap: .9rem; align-items: flex-start; }
.card--row .card__media { flex: none; width: 96px; aspect-ratio: 4 / 3; border-radius: var(--r-sm); }
.card--row .card__title { font-size: var(--fs-base); }
.card--row .card__body { display: grid; gap: .35rem; min-width: 0; }

/* --- Biến thể: danh sách xu hướng có số thứ tự ----------------------- */
.card--rank {
  flex-direction: row;
  gap: .85rem;
  align-items: center;
}
.card--rank .rank-no {
  flex: none;
  width: 2.1rem;
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1.3px var(--line-strong);
  transition: color var(--t) var(--ease), -webkit-text-stroke-color var(--t) var(--ease);
}
.card--rank:hover .rank-no { color: var(--accent); -webkit-text-stroke-color: transparent; }
.card--rank .card__media { flex: none; width: 62px; aspect-ratio: 1; border-radius: var(--r-sm); }
.card--rank .card__body { display: grid; gap: .3rem; min-width: 0; }
.card--rank .card__title { font-size: var(--fs-sm); font-weight: 650; }

/* Ảnh thay thế khi bài chưa có ảnh đại diện */
.card__ph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(130% 130% at 22% 0%, color-mix(in srgb, var(--accent) 30%, transparent), transparent 62%),
    var(--bg-sunken);
}
.card__ph .icon { width: 2rem; height: 2rem; color: var(--accent); opacity: .6; }
.card--row .card__ph .icon, .card--rank .card__ph .icon { width: 1.1rem; height: 1.1rem; }

.divided > * + * { padding-top: 1rem; margin-top: 1rem; border-top: 1px solid var(--line); }

/* --------------------------------------------------------- Đầu mỗi khối - */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: clamp(1.1rem, 2vw, 1.6rem);
}
.section-head__title {
  /* inline-flex để icon và chữ luôn nằm cùng dòng; trước đây icon là svg
     inline nên khi chỗ hẹp là chữ rơi xuống dòng dưới. */
  display: inline-flex;
  align-items: center;
  gap: .45em;
  font-size: var(--fs-2xl);
  font-weight: 800;
  letter-spacing: var(--tracking-tight);
}
.section-head__title > .icon { width: .95em; height: .95em; }
.section-head p { margin-top: .35rem; color: var(--ink-3); font-size: var(--fs-sm); max-width: 56ch; }
.section-head__aside { display: flex; align-items: center; gap: .6rem; }

/* Biến thể có bộ lọc ở giữa như trong thiết kế */
.section-head--split { justify-content: space-between; }
@media (min-width: 960px) {
  .section-head--split { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
  .section-head--split .section-head__aside { justify-self: end; }
}

/* -------------------------------------------------- Băng cuộn ngang - */
.rail-wrap { position: relative; min-width: 0; }
.rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(250px, 1fr);
  gap: var(--gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--pad-x);
  padding-bottom: .4rem;
  scrollbar-width: none;
}
.rail::-webkit-scrollbar { display: none; }
.rail > * { scroll-snap-align: start; }
@media (min-width: 720px) { .rail { grid-auto-columns: minmax(290px, 1fr); } }

.rail-nav { display: none; gap: .4rem; }
@media (min-width: 900px) { .rail-nav { display: flex; } }
.rail-nav button {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-elev);
  color: var(--ink-2);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}
.rail-nav button:hover:not(:disabled) { background: var(--brand); color: var(--brand-fg); border-color: var(--brand); }
.rail-nav button:disabled { opacity: .3; cursor: default; }

/* ------------------------------------------------------------ Video - */
.play-btn {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.play-btn::before {
  content: "";
  position: absolute; inset: 0;
  background: rgba(6, 10, 8, .22);
  transition: background var(--t) var(--ease);
}
.play-btn__glyph {
  position: relative;
  display: grid;
  place-items: center;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .94);
  color: #0a0d0c;
  box-shadow: 0 8px 30px rgba(0, 0, 0, .4);
  transition: transform var(--t) var(--ease-out), background var(--t) var(--ease), color var(--t) var(--ease);
}
.play-btn__glyph svg { width: 21px; height: 21px; fill: currentColor; stroke: none; margin-left: 3px; }
.play-btn:hover .play-btn__glyph { transform: scale(1.09); background: var(--brand); color: var(--brand-fg); }
.play-btn:hover::before { background: rgba(6, 10, 8, .38); }

.duration-pill {
  position: absolute;
  right: .65rem; bottom: .65rem;
  z-index: 2;
  padding: .18rem .48rem;
  border-radius: var(--r-xs);
  background: rgba(6, 10, 8, .82);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11px;
}

/* ------------------------------------------------------- Trình phát nhạc - */
.player {
  display: grid;
  gap: 1rem;
  padding: 1.1rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, .06);
}
.player__head { display: flex; align-items: center; gap: .9rem; min-width: 0; }
.player__art { width: 58px; height: 58px; flex: none; border-radius: var(--r-sm); object-fit: cover; }
.player__title { font-weight: 700; font-size: var(--fs-base); }
.player__artist { font-size: var(--fs-xs); color: var(--ink-3); }

.player__controls { display: flex; align-items: center; gap: .75rem; }
.player__play {
  display: grid; place-items: center;
  width: 46px; height: 46px;
  flex: none;
  border: 0;
  border-radius: 50%;
  background: var(--accent);
  color: #08120c;
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease), filter var(--t-fast) var(--ease);
}
.player__play:hover { transform: scale(1.06); filter: brightness(1.1); }
.player__play svg { width: 18px; height: 18px; fill: currentColor; stroke: none; }

.player__bar {
  position: relative;
  flex: 1;
  height: 5px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .16);
  cursor: pointer;
}
.player__fill {
  position: absolute;
  inset-block: 0; left: 0;
  width: var(--played, 0%);
  border-radius: inherit;
  background: var(--accent);
}
.player__fill::after {
  content: "";
  position: absolute;
  right: -5px; top: 50%;
  width: 11px; height: 11px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--accent);
}
.player__time { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); font-variant-numeric: tabular-nums; }

.track {
  display: flex;
  align-items: center;
  gap: .85rem;
  width: 100%;
  padding: .55rem .5rem;
  border: 0;
  border-radius: var(--r-sm);
  background: transparent;
  text-align: left;
  color: inherit;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease);
}
.track:hover { background: rgba(255, 255, 255, .06); }
.track.is-playing { background: color-mix(in srgb, var(--accent) 18%, transparent); }
.track.is-playing .track__no { color: var(--accent); }
/* Đánh số bằng counter chứ không phải k_count: vòng lặp bỏ qua bài không
   đính tệp nhạc, nên k_count nhảy cóc và danh sách bắt đầu từ 2. */
.tracklist { counter-reset: track; }
.track__no::before { counter-increment: track; content: counter(track); }
.track__no { width: 1.4rem; flex: none; font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--ink-4); font-variant-numeric: tabular-nums; }
.track__art { width: 40px; height: 40px; flex: none; border-radius: var(--r-xs); object-fit: cover; }
.track__body { min-width: 0; flex: 1; }
.track__title { font-size: var(--fs-sm); font-weight: 650; }
.track__artist { font-size: var(--fs-xs); color: var(--ink-3); }

.eq { display: none; gap: 2px; align-items: flex-end; height: 14px; }
.track.is-playing .eq { display: flex; }
.eq i { width: 3px; border-radius: 2px; background: var(--accent); animation: eq 1s var(--ease) infinite; }
.eq i:nth-child(1) { height: 40%; animation-delay: -.5s; }
.eq i:nth-child(2) { height: 100%; animation-delay: -.25s; }
.eq i:nth-child(3) { height: 65%; }
@keyframes eq { 0%, 100% { transform: scaleY(.35); } 50% { transform: scaleY(1); } }

/* ------------------------------------------------- Nội dung bài viết - */
.prose { font-size: var(--fs-md); line-height: 1.78; color: var(--ink-2); }
.prose > * + * { margin-top: 1.15em; }
.prose h2, .prose h3, .prose h4 { color: var(--ink); scroll-margin-top: calc(var(--header-h) + 2rem); }
.prose h2 { margin-top: 2.2em; font-size: var(--fs-xl); }
.prose h3 { margin-top: 1.8em; font-size: var(--fs-lg); }
.prose h4 { margin-top: 1.6em; font-size: var(--fs-md); }
.prose strong { color: var(--ink); font-weight: 700; }
.prose a { color: var(--brand-lift); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.prose a:hover { text-decoration-thickness: 2px; }
.prose ul, .prose ol { padding-left: 1.35em; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: .45em; }
.prose li::marker { color: var(--accent); }
.prose img { border-radius: var(--r-md); margin-block: 1.8em; }
.prose figure { margin-block: 1.8em; }
.prose figcaption { margin-top: .7rem; font-size: var(--fs-xs); color: var(--ink-3); text-align: center; }
.prose blockquote {
  margin-block: 1.8em;
  padding: .2rem 0 .2rem 1.4rem;
  border-left: 3px solid var(--accent);
  font-size: var(--fs-lg);
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
}
.prose code { padding: .12em .38em; border-radius: var(--r-xs); background: var(--bg-sunken); font-family: var(--font-mono); font-size: .88em; }
.prose pre { padding: 1.1rem 1.25rem; border-radius: var(--r-md); background: var(--bg-sunken); overflow-x: auto; }
.prose pre code { background: none; padding: 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.prose th, .prose td { padding: .7rem .8rem; border-bottom: 1px solid var(--line); text-align: left; }
.prose th { background: var(--bg-elev); font-weight: 700; color: var(--ink); }
.prose hr { margin-block: 2.4em; border: 0; border-top: 1px solid var(--line); }

.prose--dropcap > p:first-of-type::first-letter {
  float: left;
  margin: .04em .12em 0 0;
  font-size: 3.1em;
  font-weight: 800;
  line-height: .86;
  color: var(--accent);
}

/* ------------------------------------------------------ Hộp dữ liệu - */
.factbox {
  display: grid;
  gap: .1rem;
  padding: 1.15rem 1.3rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-md);
  background: var(--bg-elev);
}
.factbox__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 1rem 1.25rem; margin-top: .85rem; }
.factbox dt { font-size: var(--fs-xs); font-weight: 700; letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--ink-3); }
.factbox dd { margin: .2rem 0 0; font-size: var(--fs-base); font-weight: 650; color: var(--ink); }

.scoreline {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 1.4rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--bg-elev);
  text-align: center;
}
.scoreline__team { display: grid; gap: .5rem; justify-items: center; font-weight: 650; }
.scoreline__score {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

/* --------------------------------------------------------- Thư viện ảnh - */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: .6rem; }
.gallery button { padding: 0; border: 0; border-radius: var(--r-sm); overflow: hidden; background: var(--bg-sunken); cursor: zoom-in; }
.gallery img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; transition: transform var(--t-slow) var(--ease-out); }
.gallery button:hover img { transform: scale(1.06); }

.lightbox {
  position: fixed; inset: 0; z-index: 140;
  display: grid; place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgba(4, 6, 5, .94);
  opacity: 0; visibility: hidden;
  transition: opacity var(--t) var(--ease), visibility var(--t);
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img { max-height: 82vh; width: auto; border-radius: var(--r-sm); }
.lightbox figcaption { margin-top: 1rem; color: rgba(255,255,255,.72); font-size: var(--fs-sm); text-align: center; }
.lightbox__close {
  position: absolute; top: 1.2rem; right: 1.2rem;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 50%;
  background: transparent; color: #fff; cursor: pointer;
}
.lightbox__close:hover { background: rgba(255,255,255,.12); }

/* -------------------------------------------------------- Phân trang - */
.pagination { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: .35rem; margin-top: clamp(2rem, 4vw, 3rem); }
.pagination a, .pagination span {
  min-width: 42px; height: 42px;
  display: grid; place-items: center;
  padding-inline: .6rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--bg-elev);
  font-size: var(--fs-sm); font-weight: 650; color: var(--ink-2);
  transition: all var(--t-fast) var(--ease);
}
.pagination a:hover { border-color: var(--brand); color: var(--brand-lift); }
.pagination .is-current { background: var(--brand); border-color: var(--brand); color: var(--brand-fg); }
.pagination .is-gap { border-color: transparent; background: transparent; color: var(--ink-4); }

/* --------------------------------------------------------- Breadcrumb - */
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: .45rem; font-size: var(--fs-xs); color: var(--ink-3); }
.breadcrumb a:hover { color: var(--brand-lift); }
.breadcrumb .sep { opacity: .5; }
.breadcrumb [aria-current] { color: var(--ink); font-weight: 600; }

/* ------------------------------------------------------------- Cột phụ - */
.widget + .widget { margin-top: 1.5rem; }
.widget__title {
  display: flex; align-items: center; gap: .5rem;
  margin-bottom: 1rem;
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--ink);
}
.tag-cloud { display: flex; flex-wrap: wrap; gap: .4rem; }

.toc a {
  display: block;
  padding: .34rem 0 .34rem .8rem;
  border-left: 2px solid var(--line);
  font-size: var(--fs-sm);
  color: var(--ink-3);
  transition: all var(--t-fast) var(--ease);
}
.toc a:hover, .toc a.is-active { border-left-color: var(--brand); color: var(--ink); }

.share { display: flex; align-items: center; gap: .5rem; }
.share button, .share a {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-elev);
  color: var(--ink-2);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}
.share button:hover, .share a:hover { background: var(--brand); border-color: var(--brand); color: var(--brand-fg); transform: translateY(-2px); }

/* --------------------------------------------------------- Trạng thái - */
.empty {
  display: grid; justify-items: center; gap: .75rem;
  padding: clamp(3rem, 8vw, 5rem) 1rem;
  text-align: center;
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-lg);
  color: var(--ink-3);
}
.empty h3 { color: var(--ink); }

.to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 80;
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--brand);
  color: var(--brand-fg);
  box-shadow: var(--sh-glow);
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all var(--t) var(--ease-out);
}
.to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: var(--brand-lift); }

/* == Thanh tương tác cuối bài ============================================== */
/* Số liệu do assets/js/stats.js điền; lúc chưa có thì hiện dấu – chứ không phải
   số 0, để không khẳng định sai khi mạng hỏng. */

.statbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.25rem;
  margin-top: 2rem; padding: 1rem 1.1rem;
  border: 1px solid var(--line); border-radius: var(--r-md);
  background: var(--bg-elev);
}

.statbar__counts { display: flex; gap: 1.1rem; align-items: center; }
.statbar__n { display: inline-flex; align-items: center; gap: .4rem; color: var(--ink-3); font-size: var(--fs-sm); }
.statbar__n .icon { width: 17px; height: 17px; }
.statbar__n b { color: var(--ink); font-variant-numeric: tabular-nums; }
/* Đã bỏ .statbar__lbl: thanh chỉ còn icon + số, chữ chuyển sang .visually-hidden */

/* --- Nút thích ----------------------------------------------------------- */
.likebtn {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .5rem 1rem;
  border: 1px solid var(--line-strong); border-radius: var(--r-pill);
  background: transparent; color: var(--ink-2);
  font: inherit; font-size: var(--fs-sm); font-weight: 600;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease);
}
.likebtn .icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; }
.likebtn b { font-variant-numeric: tabular-nums; }
.likebtn:hover { border-color: var(--accent); color: var(--ink); }
.likebtn.is-on {
  border-color: transparent; color: #fff;
  background: color-mix(in srgb, #ef4444 88%, transparent);
}
.likebtn.is-on .icon { fill: currentColor; }
.likebtn.is-pop .icon { animation: like-pop .42s var(--ease); }
@keyframes like-pop { 0%,100% { transform: scale(1) } 40% { transform: scale(1.35) } }

/* --- Nút chia sẻ --------------------------------------------------------- */
.sharebar { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; margin-left: auto; }
.sharebar__lbl { color: var(--ink-4); font-size: var(--fs-xs); margin-right: .2rem; }
@media (max-width: 560px) { .sharebar { margin-left: 0; } .sharebar__lbl { display: none; } }

.sharebtn {
  display: grid; place-items: center;
  width: 36px; height: 36px;
  border: 1px solid var(--line-strong); border-radius: 50%;
  background: transparent; color: var(--ink-2);
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.sharebtn .icon { width: 17px; height: 17px; }
.sharebtn:hover { transform: translateY(-2px); color: #fff; border-color: transparent; }
/* Màu thương hiệu chỉ hiện lúc rê chuột, để hàng nút lúc thường vẫn dịu mắt */
.sharebtn--fb:hover { background: #1877f2; }
.sharebtn--x:hover  { background: #000; border-color: var(--line-strong); }
.sharebtn--rd:hover { background: #ff4500; }
.sharebtn--li:hover { background: #0a66c2; }
.sharebtn--tg:hover { background: #229ed9; }
.sharebtn:not([class*="sharebtn--"]):hover,
.sharebtn--native:hover { background: var(--accent); color: var(--brand-fg); }

/* Trình duyệt không có navigator.share thì app.js gỡ nút này đi */
.sharebtn--native[hidden] { display: none; }

/* --- Lượt xem trên thẻ bài ----------------------------------------------- */
.card__views {
  display: inline-flex; align-items: center; gap: .3rem;
  color: var(--ink-4); font-size: var(--fs-xs);
  font-variant-numeric: tabular-nums;
}
.card__views .icon { width: 14px; height: 14px; }

/* == Dải ngày giờ + thời tiết ============================================== */
/* Chỉ xuất hiện khi bật trong Thiết lập site. Cả hai phần đều ẩn sẵn ở HTML và
   do JS bỏ ẩn, nên trang không nhấp nháy khối rỗng lúc chờ dữ liệu. */

.infobar {
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
  font-size: 11.5px;
  line-height: 1.5;
}
.infobar__in {
  display: flex; flex-wrap: wrap; align-items: center; gap: .35rem 1.1rem;
  max-width: var(--container); margin-inline: auto;
  /* Cố ý mỏng: dải này chỉ là thông tin phụ, ăn chiều cao của ảnh bìa bên dưới */
  padding: .3rem var(--pad-x);
}
.infobar__date, .infobar__weather {
  display: inline-flex; align-items: center; gap: .4rem;
  color: var(--ink-3);
}
.infobar__date .icon { width: 13px; height: 13px; }
.infobar__clock {
  color: var(--ink); font-variant-numeric: tabular-nums;
  padding-left: .5rem; margin-left: .1rem;
  border-left: 1px solid var(--line-strong);
}
.infobar__clock[hidden] { display: none; }

.infobar__weather { margin-left: auto; }
.infobar__weather[hidden] { display: none; }
.infobar__wicon { font-size: 13px; line-height: 1; }
.infobar__weather b { color: var(--ink); font-variant-numeric: tabular-nums; }
.infobar__place { color: var(--ink-4); }
.infobar__wdesc { color: var(--ink-4); }

@media (max-width: 560px) {
  .infobar__in { gap: .35rem .75rem; }
  .infobar__weather { margin-left: 0; }
  .infobar__wdesc { display: none; }
}

/* Nút dùng vị trí riêng — chỉ hiện khi trình duyệt có Geolocation */
.infobar__geo {
  display: grid; place-items: center;
  width: 20px; height: 20px; padding: 0;
  border: 0; border-radius: 50%;
  background: transparent; color: var(--ink-4);
  cursor: pointer;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.infobar__geo .icon { width: 13px; height: 13px; }
.infobar__geo:hover { color: var(--ink); background: var(--bg-raise); }
.infobar__geo.is-on { color: var(--brand); }
.infobar__geo.is-busy { opacity: .5; pointer-events: none; }
.infobar__place[hidden] { display: none; }

/* == Ô trong cột phụ trang chủ ============================================= */
.rail-box {
  padding: .9rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--bg-elev);
}
.rail-box__title {
  display: flex; align-items: center; gap: .4rem;
  margin-bottom: .7rem;
  font-size: var(--fs-sm); font-weight: 700; color: var(--ink);
}
.rail-box__title .icon { width: 15px; height: 15px; color: var(--accent); }
.rail-box__sub {
  margin: .9rem 0 .5rem;
  font-size: var(--fs-xs); font-weight: 700;
  text-transform: uppercase; letter-spacing: var(--tracking-caps);
  color: var(--ink-3);
}
.rail-box__note { margin-top: .6rem; font-size: 11px; color: var(--ink-4); line-height: 1.5; }
.rail-box__note[hidden] { display: none; }
.rail-box__more {
  display: inline-flex; align-items: center; gap: .3rem;
  margin-top: .7rem; font-size: var(--fs-xs); font-weight: 600; color: var(--accent);
}
.rail-box__more .icon { width: 13px; height: 13px; }

/* --- Danh sách địa điểm --------------------------------------------------- */
.plc-list { display: grid; gap: .1rem; }
.plc a {
  display: grid; grid-template-columns: 40px minmax(0, 1fr);
  align-items: center; gap: .55rem;
  padding: .4rem; border-radius: var(--r-sm);
  color: inherit; text-decoration: none;
}
.plc a:hover { background: var(--bg-raise); }
.plc__img { width: 40px; height: 40px; border-radius: 8px; object-fit: cover; }
.plc__body { display: grid; gap: .05rem; min-width: 0; }
.plc__name { font-size: var(--fs-sm); font-weight: 600; color: var(--ink); }
.plc__meta { font-size: 11px; color: var(--ink-4); }
.plc__meta b { color: var(--accent); }
.plc__note { font-size: 11px; color: var(--ink-3); }
.plc__dist[hidden] { display: none; }

/* --- Bảng tỷ giá ---------------------------------------------------------- */
.rate-list { display: grid; gap: .3rem; }
.rate-list[hidden] { display: none; }
.rate-list li {
  display: flex; align-items: baseline; justify-content: space-between; gap: .5rem;
  font-size: var(--fs-sm);
}
.rate-list span { color: var(--ink-3); }
.rate-list b { color: var(--ink); font-variant-numeric: tabular-nums; }

/* --- Banner / liên kết ---------------------------------------------------- */
/* Chỉ ảnh + link, không nhúng mã của bên thứ ba. Nhãn "Quảng cáo" luôn hiện
   với banner có trả tiền — vừa đúng quy định của Google, vừa sòng phẳng. */
.promo-slot--band { margin-block: clamp(1rem, 2vw, 1.75rem); }
.promo-slot--band .promo { max-width: var(--container); margin-inline: auto; }
.promo { position: relative; display: block; border-radius: var(--r-md); overflow: hidden; }
.promo img { display: block; width: 100%; height: auto; }
.promo__tag {
  position: absolute; top: .5rem; right: .5rem;
  padding: .1rem .45rem; border-radius: var(--r-xs);
  background: rgba(0, 0, 0, .62); color: #fff;
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: var(--tracking-caps);
}
.promo-slot--rail .promo { aspect-ratio: 1; }
.promo-slot--rail .promo img { height: 100%; object-fit: cover; }