/* ═══════════════════════════════════════════════
   BLOG-ARCHIVE.CSS — Insider Guide listing + filter sidebar
   Vietnam City Breaks · WordPress theme (home.php)
   Layers on home.css (.blcard card look). Ported from prototype
   blog-sidebar.css; mobile sidebar is a slide-in drawer (matches tours.css).
   ═════════════════════════════════════════════ */

@keyframes blsKenBurns { from { transform: scale(1); } to { transform: scale(1.06); } }

/* ── Hero ── */
.bls-hero { position: relative; height: 270px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.bls-hero-bg {
  position: absolute; inset: 0;
  background: url('https://images.unsplash.com/photo-1555396273-367ea4eb4db5?w=1920&q=85') center/cover no-repeat;
  animation: blsKenBurns 18s ease-in-out infinite alternate;
}
.bls-hero-overlay { position: absolute; inset: 0; background: linear-gradient(160deg, rgba(10,15,35,.84) 0%, rgba(10,60,60,.64) 100%); }
.bls-hero-content { position: relative; z-index: 2; text-align: center; padding: 0 1.25rem; width: 100%; max-width: 700px; margin: 0 auto; }

.bls-breadcrumb { margin-bottom: .8rem; }
.bls-breadcrumb ol { display: flex; align-items: center; justify-content: center; gap: 0; list-style: none; margin: 0; padding: 0; font-size: .78rem; color: rgba(255,255,255,.6); }
.bls-breadcrumb ol li:not(:last-child)::after { content: '/'; margin: 0 .4rem; opacity: .5; }
.bls-breadcrumb ol a { color: rgba(255,255,255,.6); transition: color .2s; }
.bls-breadcrumb ol a:hover { color: #fff; }
.bls-breadcrumb ol li:last-child { color: rgba(255,255,255,.88); }

.bls-hero-pill { display: inline-flex; align-items: center; gap: .4rem; background: rgba(255,255,255,.13); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,.22); color: #FFD580; padding: .3rem .85rem; border-radius: 20px; font-size: .75rem; font-weight: 600; margin-bottom: .75rem; }
.bls-hero-content h1 { font-family: var(--fh); color: #fff; font-size: clamp(1.55rem, 3.2vw, 2.25rem); font-weight: 800; line-height: 1.22; margin: 0 0 .85rem; text-shadow: 0 2px 12px rgba(0,0,0,.3); }
.bls-hero-tagline { color: rgba(255,255,255,.92); font-size: clamp(.95rem, 1.6vw, 1.08rem); line-height: 1.5; margin: 0 auto .9rem; max-width: 560px; text-shadow: 0 1px 8px rgba(0,0,0,.28); }

/* Plain hero — category pages with no hero image (light, auto-height). */
.bls-hero--plain { height: auto; min-height: 0; background: var(--bg-soft); border-bottom: 1px solid var(--border); padding: 2.1rem 0 1.85rem; }
.bls-hero--plain .bls-hero-bg, .bls-hero--plain .bls-hero-overlay { display: none; }
.bls-hero--plain .bls-hero-content h1 { color: var(--text-h); text-shadow: none; }
.bls-hero--plain .bls-hero-tagline { color: var(--text-b); text-shadow: none; }
.bls-hero--plain .bls-hero-pill { background: var(--primary-light); border-color: transparent; color: var(--primary-dark); }
.bls-hero--plain .bls-breadcrumb ol,
.bls-hero--plain .bls-breadcrumb ol a { color: var(--text-m); }
.bls-hero--plain .bls-breadcrumb ol a:hover { color: var(--primary); }
.bls-hero--plain .bls-breadcrumb ol li:last-child { color: var(--text-b); }

/* Search bar in hero */
.bls-search-wrap { position: relative; max-width: 460px; margin: 0 auto; }
.bls-search-wrap input { width: 100%; padding: .72rem 3.2rem .72rem 1.2rem; border-radius: 50px; border: none; font-size: .9rem; font-family: var(--fb); background: rgba(255,255,255,.95); color: var(--text-h); outline: none; box-shadow: 0 4px 20px rgba(0,0,0,.28); box-sizing: border-box; }
.bls-search-wrap input::placeholder { color: var(--text-m); }
.bls-search-wrap input:focus { background: #fff; box-shadow: 0 4px 24px rgba(0,0,0,.35); }
.bls-search-btn { position: absolute; right: .45rem; top: 50%; transform: translateY(-50%); width: 34px; height: 34px; background: var(--primary); border: none; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background .2s; }
.bls-search-btn:hover { background: var(--primary-dark); }
.bls-search-btn svg { color: #fff; }

@media (prefers-reduced-motion: reduce) { .bls-hero-bg { animation: none; } }

/* ── Listing intro ── */
.bls-intro { padding: 1.8rem 0 1.1rem; text-align: center; background: var(--bg-soft); }
.bls-intro h2 { font-family: var(--fh); font-size: clamp(1.15rem, 2vw, 1.55rem); font-weight: 800; color: var(--text-h); margin-bottom: .35rem; }
.bls-intro p { color: var(--text-m); font-size: 16px; max-width: 680px; margin: 0 auto; }

/* ── Layout ── */
.bls-layout { display: flex; align-items: flex-start; gap: 1.5rem; padding: 1.5rem 0 3.5rem; }

/* ── Sidebar ── */
.bls-layout .sidebar { width: 272px; min-width: 272px; background: #fff; border-radius: 14px; box-shadow: var(--sh-card); padding: 1.25rem; position: sticky; top: 88px; flex-shrink: 0; }
.bls-layout .sb-head { display: flex; align-items: center; gap: .5rem; margin-bottom: 1.1rem; padding-bottom: .85rem; border-bottom: 1px solid var(--border); }
.bls-layout .sb-head h3 { font-family: var(--fh); font-size: .95rem; font-weight: 700; color: var(--text-h); display: flex; align-items: center; gap: .4rem; margin: 0; margin-right: auto; }
.bls-layout .sb-clear { font-size: .78rem; color: var(--primary); font-weight: 600; background: none; border: none; cursor: pointer; padding: 0; }
.bls-layout .sb-clear:hover { text-decoration: underline; }
.bls-layout .sb-close { display: none; background: none; border: none; cursor: pointer; color: var(--text-h); padding: 0; }

.bls-layout .fg { margin-bottom: 1.1rem; padding-bottom: 1.1rem; border-bottom: 1px solid var(--border); }
.bls-layout .fg:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
.bls-layout .fg-title { font-family: var(--fh); font-size: 16px; font-weight: 700; color: var(--text-h); text-transform: uppercase; letter-spacing: .04em; margin-bottom: .7rem; }

/* Checkbox */
.bls-layout .ck { display: flex; align-items: center; gap: .55rem; padding: .3rem 0; cursor: pointer; }
.bls-layout .ck input[type=checkbox] { appearance: none; -webkit-appearance: none; width: 16px; height: 16px; min-width: 16px; border: 1.5px solid #C8C8DA; border-radius: 4px; cursor: pointer; transition: all .15s; position: relative; flex-shrink: 0; }
.bls-layout .ck input[type=checkbox]:checked { background: var(--primary); border-color: var(--primary); }
.bls-layout .ck input[type=checkbox]:checked::after { content: ''; position: absolute; left: 4px; top: 1px; width: 6px; height: 9px; border: 2px solid #fff; border-top: none; border-left: none; transform: rotate(40deg); }
.bls-layout .ck-lbl { font-size: 16px; color: var(--text-b); flex: 1; cursor: pointer; }
.bls-layout .ck-n { font-size: .72rem; color: var(--text-m); background: var(--bg-soft); padding: .1rem .4rem; border-radius: 3px; }

/* Radio */
.bls-layout .rd { display: flex; align-items: center; gap: .55rem; padding: .3rem 0; cursor: pointer; }
.bls-layout .rd input[type=radio] { appearance: none; -webkit-appearance: none; width: 16px; height: 16px; min-width: 16px; border: 1.5px solid #C8C8DA; border-radius: 50%; cursor: pointer; transition: all .15s; position: relative; flex-shrink: 0; }
.bls-layout .rd input[type=radio]:checked { border-color: var(--primary); }
.bls-layout .rd input[type=radio]:checked::after { content: ''; position: absolute; left: 3px; top: 3px; width: 8px; height: 8px; background: var(--primary); border-radius: 50%; }
.bls-layout .rd-lbl { font-size: 16px; color: var(--text-b); flex: 1; }

/* Topic tag pills */
.bls-tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.bls-tag-pill { font-size: 16px; font-weight: 600; padding: .3rem .72rem; border-radius: 20px; background: var(--bg-soft); border: 1.5px solid var(--border); color: var(--text-b); cursor: pointer; transition: all .2s; line-height: 1.3; }
.bls-tag-pill:hover, .bls-tag-pill.is-active { background: var(--secondary-light); border-color: var(--secondary); color: var(--secondary); }

/* Popular articles mini-list */
.pop-list { display: flex; flex-direction: column; gap: .85rem; }
.pop-item { display: flex; gap: .65rem; align-items: flex-start; text-decoration: none; }
.pop-item:hover .pop-title { color: var(--primary); }
.pop-thumb { width: 54px; height: 54px; border-radius: 8px; overflow: hidden; flex-shrink: 0; }
.pop-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pop-info { flex: 1; min-width: 0; }
.pop-title { font-family: var(--fh); font-size: 16px; font-weight: 700; color: var(--text-h); line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color .2s; margin-bottom: .18rem; }
.pop-meta { font-size: .7rem; color: var(--text-m); }

/* Mobile filter button */
.bls-layout .filter-btn { display: none; align-items: center; gap: .5rem; background: #fff; border: 1.5px solid var(--border); border-radius: 8px; padding: .6rem 1rem; font-size: .85rem; font-weight: 600; color: var(--text-h); cursor: pointer; margin-bottom: 1rem; }
.bls-layout .filter-btn:hover { border-color: var(--primary); color: var(--primary); }

/* ── Main column ── */
.bls-layout .main-col { flex: 1; min-width: 0; }
.bls-layout .sort-bar { background: #fff; border-radius: 12px; padding: .85rem 1.1rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; box-shadow: var(--sh-card); flex-wrap: wrap; }
.bls-layout .sort-l { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; flex: 1; }
.bls-layout .res-count { font-size: .85rem; color: var(--text-m); white-space: nowrap; }
.bls-layout .res-count strong { color: var(--text-h); }
.bls-layout .af-tags { display: flex; gap: .4rem; flex-wrap: wrap; }
.bls-layout .aftag { display: inline-flex; align-items: center; gap: .35rem; background: var(--primary-light); color: var(--primary); font-size: .72rem; font-weight: 600; padding: .25rem .6rem; border-radius: 20px; }
.bls-layout .aftag button { background: none; border: none; color: var(--primary); font-size: .85rem; line-height: 1; cursor: pointer; padding: 0; display: flex; align-items: center; }
.bls-layout .sort-r { display: flex; align-items: center; gap: .5rem; white-space: nowrap; }
.bls-layout .sort-lbl { font-size: .82rem; color: var(--text-m); }
.bls-layout .sort-sel { font-family: var(--fb); font-size: .82rem; font-weight: 600; color: var(--text-h); border: 1.5px solid var(--border); border-radius: 6px; padding: .35rem .65rem; background: #fff; cursor: pointer; outline: none; }
.bls-layout .sort-sel:focus { border-color: var(--primary); }

/* Grid — 3 cols, excerpt visible (overrides home.css) */
#blsGrid { grid-template-columns: repeat(3, 1fr); }
#blsGrid.is-loading { opacity: .55; pointer-events: none; transition: opacity .2s; }
#bls-main .bl-img { height: 200px; }
#bls-main .bl-body { gap: .2rem; }
#bls-main .bl-title { font-size: 1.05rem; margin-bottom: .25rem; }
#bls-main .bl-excerpt { font-size: 16px; color: var(--text-b); line-height: 1.52; display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin: .2rem 0 .3rem; flex: 1; }
#bls-main .bl-date { margin-top: auto; }

/* No results */
.bls-no-results { text-align: center; padding: 3rem 1rem; }
.bls-no-results p { font-size: .95rem; color: var(--text-m); margin-bottom: 1.2rem; }
.btn-outline { display: inline-block; background: none; border: 1.5px solid var(--primary); color: var(--primary); font-family: var(--fh); font-weight: 700; font-size: .88rem; padding: .6rem 1.4rem; border-radius: var(--r-btn); cursor: pointer; transition: all .2s; }
.btn-outline:hover { background: var(--primary); color: #fff; }

/* ── Pagination ── */
.bls-pagination { margin-top: 2rem; }
.bls-pagination .nav-links,
.bls-pagination .page-numbers { display: inline-flex; }
.bls-pagination .page-numbers { align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 .75rem; margin: 0 .2rem; border: 1.5px solid var(--border); border-radius: 8px; font-size: .85rem; font-weight: 600; color: var(--text-b); background: #fff; transition: all .2s; text-decoration: none; }
.bls-pagination .nav-links { justify-content: center; flex-wrap: wrap; gap: .1rem; width: 100%; }
.bls-pagination .page-numbers:hover,
.bls-pagination .page-numbers.current { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .bls-layout .sidebar { width: 240px; min-width: 240px; }
}
@media (max-width: 768px) {
  .bls-hero { height: 220px; }
  .bls-layout { flex-direction: column; padding: .75rem 0 2.5rem; }
  .bls-layout .filter-btn { display: flex; }
  /* Sidebar hidden until opened as a drawer */
  .bls-layout .sidebar { display: none; }
  .bls-layout .sidebar.sb-open { display: block; position: fixed; left: 0; top: 0; bottom: 0; z-index: 1600; width: 300px; max-width: 85vw; border-radius: 0; overflow-y: auto; box-shadow: var(--sh-modal); }
  .bls-layout .sidebar.sb-open .sb-close { display: block; }
  .sb-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 1590; }
  #blsGrid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .bls-hero { height: 200px; }
  #blsGrid { grid-template-columns: 1fr; }
}