/* ============================================================
   Uniqcret — Blog browse page (/blog/index.html)
   Layered on top of main.css; reuses its tokens (--bg, --ink,
   --accent, --glass, --line, --radius, fonts) so the theme +
   language toggles Just Work. House aesthetic: near-black
   canvas, ONE accent hue, glass cards, big editorial type,
   motion that ARRIVES (rise + fade) — no bounce/spin. All
   animation is transform/opacity; reduced-motion gets instant
   final states. Sibling of gpts.css — same conventions.
   ============================================================ */

.blog-body { min-height: 100vh; }

/* ---------- Header ---------- */
.bl-hero {
  position: relative;
  padding: calc(var(--nav-h) + clamp(2.2rem, 6vh, 4.2rem)) 0 clamp(1.2rem, 3vh, 2rem);
  overflow: hidden;
}
.bl-hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb-bl-a {
  width: 52vmax; height: 52vmax; top: -28%; left: -18%;
  background: radial-gradient(circle at 40% 40%, rgba(var(--accent-rgb), 0.18), transparent 62%);
}
.orb-bl-b {
  width: 40vmax; height: 40vmax; top: 6%; right: -20%;
  background: radial-gradient(circle at 50% 45%, rgba(160, 140, 255, 0.10), transparent 62%);
}
.bl-hero-inner { position: relative; z-index: 2; }
.bl-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 6vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0.7rem 0 0.9rem;
}
.bl-lede { max-width: 64ch; color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.12rem); }

/* ---------- Control bar (sticky) ---------- */
.bl-controls {
  position: sticky;
  top: var(--nav-h);
  z-index: 40;
  display: grid;
  gap: 0.85rem;
  padding: 1rem 0 1.05rem;
  background: linear-gradient(to bottom, var(--bg) 74%, transparent);
}

/* Row 1: search + language segmented control + sort */
.bl-row-top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
}
.bl-search {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1 1 320px;
  min-width: 240px;
  max-width: 560px;
}
.bl-search-ico {
  position: absolute; left: 1rem;
  width: 19px; height: 19px;
  color: var(--muted);
  pointer-events: none;
}
.bl-search-input {
  width: 100%;
  font-family: var(--font-text);
  font-size: 1rem;
  color: var(--ink);
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.85rem 2.8rem 0.85rem 2.9rem;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
[data-theme="light"] .bl-search-input { background: var(--bg-2); -webkit-backdrop-filter: none; backdrop-filter: none; }
.bl-search-input::placeholder { color: var(--muted); }
.bl-search-input:focus {
  outline: none;
  border-color: rgba(var(--accent-rgb), 0.55);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.18);
}
[lang="th"] .bl-search-input { font-family: "Noto Sans Thai", var(--font-text); }
.bl-search-clear {
  position: absolute; right: 0.55rem;
  display: grid; place-items: center;
  width: 30px; height: 30px;
  border: 0; border-radius: 999px;
  background: transparent; color: var(--muted);
  cursor: pointer;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.bl-search-clear:hover { color: var(--ink); background: var(--line); }
.bl-search-clear svg { width: 15px; height: 15px; }

/* Language segmented control */
.bl-seg {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  padding: 0.22rem;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 999px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
[data-theme="light"] .bl-seg { background: var(--bg-2); -webkit-backdrop-filter: none; backdrop-filter: none; }
.bl-seg-btn {
  font-family: var(--font-text);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--body-c);
  background: transparent;
  border: 0;
  border-radius: 999px;
  padding: 0.5rem 0.85rem;
  cursor: pointer;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.bl-seg-btn[data-lang-filter="th"] { font-family: "Noto Sans Thai", var(--font-text); }
.bl-seg-btn:hover { color: var(--ink); }
.bl-seg-btn.is-active { color: var(--accent-deep); background: var(--accent); }

/* Sort toggle */
.bl-sort {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-text);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--body-c);
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: color 0.2s ease, border-color 0.2s ease;
}
[data-theme="light"] .bl-sort { background: var(--bg-2); -webkit-backdrop-filter: none; backdrop-filter: none; }
.bl-sort:hover { color: var(--ink); border-color: rgba(var(--accent-rgb), 0.4); }
.bl-sort svg { width: 15px; height: 15px; color: var(--accent); }

/* Row 2: category chips + "more categories" + clear */
.bl-row-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.bl-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.bl-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-text);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--body-c);
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  cursor: pointer;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}
[data-theme="light"] .bl-chip { background: var(--bg-2); -webkit-backdrop-filter: none; backdrop-filter: none; }
.bl-chip:hover { color: var(--ink); border-color: rgba(var(--accent-rgb), 0.4); transform: translateY(-1px); }
.bl-chip-n {
  display: inline-grid; place-items: center;
  min-width: 1.35rem; height: 1.35rem; padding: 0 0.35rem;
  font-size: 0.7rem; font-weight: 600;
  color: var(--muted);
  background: rgba(var(--accent-rgb), 0.10);
  border-radius: 999px;
}
.bl-chip.is-active {
  color: var(--accent-deep);
  background: var(--accent);
  border-color: transparent;
}
.bl-chip.is-active .bl-chip-n { color: var(--accent-deep); background: rgba(0, 0, 0, 0.18); }
[data-theme="light"] .bl-chip.is-active .bl-chip-n { background: rgba(255, 255, 255, 0.28); }

/* "More categories" dropdown */
.bl-more-cat { position: relative; }
.bl-more-cat-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-text);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--body-c);
  background: var(--glass);
  border: 1px dashed var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: color 0.2s ease, border-color 0.2s ease;
}
[data-theme="light"] .bl-more-cat-btn { background: var(--bg-2); -webkit-backdrop-filter: none; backdrop-filter: none; }
.bl-more-cat-btn:hover { color: var(--ink); border-color: rgba(var(--accent-rgb), 0.5); }
.bl-more-cat-btn.has-sel { color: var(--accent); border-color: rgba(var(--accent-rgb), 0.5); border-style: solid; }
.bl-more-cat-btn svg { width: 14px; height: 14px; }

.bl-more-cat-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  z-index: 60;
  width: min(340px, 88vw);
  display: grid;
  gap: 0.6rem;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 60px -28px rgba(5, 6, 12, 0.8);
}
html:not([data-theme="light"]) .bl-more-cat-menu { background: rgba(18, 20, 36, 0.92); }
[data-theme="light"] .bl-more-cat-menu {
  background: var(--bg-2);
  -webkit-backdrop-filter: none; backdrop-filter: none;
  box-shadow: 0 1px 2px rgba(15, 16, 32, 0.06), 0 24px 60px -28px rgba(15, 16, 32, 0.4);
}
.bl-more-cat-search {
  width: 100%;
  font-family: var(--font-text);
  font-size: 0.9rem;
  color: var(--ink);
  background: rgba(var(--accent-rgb), 0.06);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
}
[lang="th"] .bl-more-cat-search { font-family: "Noto Sans Thai", var(--font-text); }
.bl-more-cat-search:focus { outline: none; border-color: rgba(var(--accent-rgb), 0.5); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.15); }
.bl-more-cat-list {
  list-style: none; margin: 0; padding: 0.1rem;
  max-height: 320px; overflow-y: auto;
  display: grid; gap: 0.1rem;
}
.bl-more-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  text-align: left;
  font-family: var(--font-text);
  font-size: 0.86rem;
  color: var(--body-c);
  background: transparent;
  border: 0;
  border-radius: 10px;
  padding: 0.5rem 0.55rem;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.bl-more-item:hover { background: rgba(var(--accent-rgb), 0.1); color: var(--ink); }
.bl-more-check {
  flex: none;
  display: grid; place-items: center;
  width: 18px; height: 18px;
  border: 1.5px solid var(--line);
  border-radius: 6px;
  color: transparent;
}
.bl-more-check svg { width: 12px; height: 12px; }
.bl-more-item.is-active .bl-more-check { background: var(--accent); border-color: transparent; color: var(--accent-deep); }
.bl-more-item.is-active { color: var(--ink); }
.bl-more-name { flex: 1 1 auto; min-width: 0; }
.bl-more-n {
  flex: none;
  font-size: 0.74rem; font-weight: 600;
  color: var(--muted);
}
.bl-more-empty { padding: 0.7rem 0.55rem; color: var(--muted); font-size: 0.86rem; }

.bl-clear-filters {
  font-family: var(--font-text);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 999px;
  padding: 0.45rem 0.6rem;
  cursor: pointer;
  transition: color 0.2s ease;
}
.bl-clear-filters:hover { color: var(--accent); text-decoration: underline; }

.bl-count { font-size: 0.85rem; color: var(--muted); }

/* ---------- Grid ---------- */
.bl-stage { padding-bottom: clamp(3rem, 7vh, 5.5rem); }
.bl-grid {
  list-style: none; margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}
.bl-card-wrap { min-width: 0; }

/* ---------- Card (whole card is one link) ---------- */
.bl-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  overflow: hidden;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
html:not([data-theme="light"]) .bl-card { background: rgba(22, 24, 42, 0.5); }
[data-theme="light"] .bl-card {
  background: var(--bg-2);
  -webkit-backdrop-filter: none; backdrop-filter: none;
  box-shadow: 0 1px 2px rgba(15, 16, 32, 0.05), 0 14px 34px -24px rgba(15, 16, 32, 0.35);
}
.bl-card:hover {
  transform: translateY(-5px);
  border-color: rgba(var(--accent-rgb), 0.5);
  box-shadow: 0 24px 54px -28px rgba(var(--accent-rgb), 0.7);
}
.bl-card:focus-visible {
  outline: none;
  border-color: var(--accent-bright);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.3);
}

/* media / cover */
.bl-card-media { position: relative; display: block; }
.bl-card-cover {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: radial-gradient(120% 120% at 50% 0%, rgba(var(--accent-rgb), 0.16), transparent 70%);
}
.bl-card-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.bl-card:hover .bl-card-cover img { transform: scale(1.05); }
/* graceful no-cover fallback (and broken-image fallback via .is-broken) */
.bl-card-cover-none,
.bl-card-cover.is-broken {
  display: grid; place-items: center;
  color: rgba(var(--accent-rgb), 0.5);
  background:
    radial-gradient(120% 120% at 50% 0%, rgba(var(--accent-rgb), 0.16), transparent 70%),
    var(--glass);
}
.bl-card-cover-none svg, .bl-card-cover.is-broken::after { width: 38px; height: 38px; }
.bl-card-cover.is-broken::after {
  content: "";
  width: 38px; height: 38px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.4'%3E%3Cpath d='M4 5h16v14H4z'/%3E%3Cpath d='m4 16 4.5-4.5 3 3L16 10l4 4'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.4'%3E%3Cpath d='M4 5h16v14H4z'/%3E%3Cpath d='m4 16 4.5-4.5 3 3L16 10l4 4'/%3E%3C/svg%3E") center / contain no-repeat;
}

/* EN / TH badge */
.bl-badge {
  position: absolute; top: 0.6rem; right: 0.6rem; z-index: 2;
  font-size: 0.66rem; font-weight: 700; letter-spacing: 0.04em;
  border-radius: 999px;
  padding: 0.22rem 0.5rem;
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.bl-badge-en { color: var(--accent-deep); background: var(--accent); }
.bl-badge-th { color: #fff; background: #8b5cf6; font-family: "Noto Sans Thai", var(--font-text); }
[data-theme="light"] .bl-badge-th { background: #7c3aed; }

/* body */
.bl-card-body { display: flex; flex-direction: column; gap: 0.5rem; padding: 0.9rem 1rem 1.05rem; flex: 1 1 auto; }
.bl-card-cats { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.bl-card-chip {
  font-size: 0.66rem; font-weight: 600; letter-spacing: 0.02em;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.1);
  border: 1px solid rgba(var(--accent-rgb), 0.18);
  border-radius: 999px;
  padding: 0.18rem 0.5rem;
  max-width: 100%;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.bl-card-chip-more { color: var(--muted); background: transparent; border-color: var(--line); }
.bl-card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.3;
  color: var(--ink);
  /* clamp to 3 lines */
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.bl-card-title[lang="th"] { font-family: "Noto Sans Thai", var(--font-display); }
.bl-card-excerpt {
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--muted);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.bl-card-excerpt[lang="th"] { font-family: "Noto Sans Thai", var(--font-text); }
.bl-card-meta {
  margin-top: auto;
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--muted);
}
.bl-card-dot { opacity: 0.6; }

/* ---------- Load more ---------- */
.bl-loadmore-wrap { display: grid; place-items: center; padding: clamp(1.5rem, 4vh, 2.5rem) 0 0; }
.bl-loadmore { min-width: 200px; justify-content: center; }

/* ---------- Empty / no-match ---------- */
.bl-empty {
  display: grid; gap: 0.6rem; justify-items: start;
  padding: clamp(2rem, 6vw, 4rem) 0;
}
.bl-empty-title { font-family: var(--font-display); font-weight: 600; font-size: 1.3rem; color: var(--ink); }
.bl-empty-sub { color: var(--muted); }
.bl-empty .btn { margin-top: 0.6rem; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .bl-grid { grid-template-columns: repeat(auto-fill, minmax(min(260px, 100%), 1fr)); }
}
@media (max-width: 560px) {
  .bl-controls { top: 0; } /* nav hides on scroll on phones; keep controls usable */
  .bl-row-top { gap: 0.55rem; }
  .bl-search { flex-basis: 100%; max-width: none; }
  .bl-grid { grid-template-columns: 1fr; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .bl-card, .bl-card-cover img, .bl-chip, .bl-seg-btn, .bl-more-item { transition: none !important; }
  .bl-card:hover { transform: none; }
  .bl-card:hover .bl-card-cover img { transform: none; }
  .bl-search-input, .bl-chip, .bl-card, .bl-seg, .bl-sort, .bl-more-cat-btn, .bl-more-cat-menu {
    -webkit-backdrop-filter: none !important; backdrop-filter: none !important;
  }
}