/* UniQuery Tools — hub/index page. Deliberately NOT anupress-tools' index
   reskinned: a gradient hero band, a tab-strip category filter (matching
   the .uqtool__seg language every individual tool already uses instead of
   pill buttons), per-category SVG icon badges, an icon fallback tile for
   tools without a featured image yet, and a horizontally scrolling
   "most used" strip instead of a second full grid. Reuses .uqtool's
   --uq-* tokens for on-brand colors, and overrides the 720px
   calculator-width constraint since a directory page needs real width. */
.uqtool.uqtool--index {
  max-width: 1200px;
  margin: 1.5rem auto;
  font-family: "Noto Sans Bengali", "Hind Siliguri", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}

/* ── Hero band ─────────────────────────────────────────── */
.uqidx__hero {
  background: var(--uq-grad);
  border-radius: var(--uq-radius);
  padding: 2.4rem 2.2rem;
  margin-bottom: 1.8rem;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.uqidx__hero::after {
  /* a faint decorative ring, purely visual, never carries information */
  content: "";
  position: absolute; right: -60px; top: -60px;
  width: 220px; height: 220px; border-radius: 50%;
  border: 40px solid rgba(255, 255, 255, .07);
  pointer-events: none;
}
.uqidx__hero-eyebrow {
  text-transform: uppercase; letter-spacing: .1em; font-size: 12.5px;
  font-weight: 700; color: rgba(255, 255, 255, .8); margin: 0 0 .5rem;
}
.uqidx__hero-title {
  font-size: 28px; font-weight: 800; line-height: 1.3;
  margin: 0 0 .6rem; max-width: 640px; letter-spacing: -.01em;
}
.uqidx__hero-sub {
  font-size: 15.5px; color: rgba(255, 255, 255, .92);
  margin: 0 0 1.4rem; max-width: 560px;
}
.uqidx__hero-sub strong { color: #fff; }

.uqidx__search-wrap {
  position: relative; max-width: 460px;
}
.uqidx__search-icon {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  width: 19px; height: 19px; color: var(--uq-mute); pointer-events: none;
}
.uqidx__search {
  width: 100%; font: 400 15.5px/1.4 inherit; color: var(--uq-ink);
  background: #fff; border: 0; border-radius: var(--uq-radius-sm);
  padding: 13px 16px 13px 42px;
  box-shadow: rgba(6, 12, 30, .18) 0 8px 20px;
}
.uqidx__search:focus {
  outline: none; box-shadow: rgba(6, 12, 30, .18) 0 8px 20px, 0 0 0 3px rgba(0, 168, 255, .55);
}

/* ── Category filter: tab-strip, not pills — matches every tool's
   own .uqtool__seg mode-switcher so the hub feels like part of the same
   product instead of a generic directory bolted on top. ─────────────── */
.uqidx__filters {
  display: flex; flex-wrap: wrap;
  border-bottom: 2px solid var(--uq-line);
  gap: 2px; margin-bottom: 1.8rem;
}
.uqidx__filter {
  appearance: none; cursor: pointer; border: 0; background: transparent;
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--uq-soft); font: 700 14.5px/1 inherit; padding: .85rem 1.05rem;
  min-height: 46px; border-bottom: 3px solid transparent; margin-bottom: -2px;
  border-radius: 10px 10px 0 0; transition: all .18s; white-space: nowrap;
}
.uqidx__filter:hover:not([aria-pressed="true"]) {
  color: var(--uq-brand-ink); background: var(--uq-panel);
}
.uqidx__filter[aria-pressed="true"] {
  color: var(--uq-brand-ink); background: var(--uq-panel);
  border-bottom-color: var(--uq-accent);
}
.uqidx__filter-icon { display: inline-flex; width: 17px; height: 17px; flex: none; }
.uqidx__filter-icon svg { width: 100%; height: 100%; }
.uqidx__filter-count {
  font-size: 12px; font-weight: 700; color: var(--uq-mute);
  background: var(--uq-line); border-radius: 999px; padding: 1px 7px;
}
.uqidx__filter[aria-pressed="true"] .uqidx__filter-count { color: #fff; background: var(--uq-brand); }

@media (max-width: 620px) {
  .uqidx__filters {
    flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .uqidx__filters::-webkit-scrollbar { display: none; }
  .uqidx__filter { flex: none; }
}

.uqidx__empty {
  text-align: center; color: var(--uq-mute); font-size: 15px;
  padding: 2.5rem 1rem; border: 1px dashed var(--uq-line); border-radius: var(--uq-radius);
}

/* ── Category tint tokens: gives the 4 categories real semantic color
   instead of using --uq-brand everywhere, same principle as the grade-tier
   chips inside gpa-calculator. ─────────────────────────────────────────── */
.uqidx__icon--math     { color: var(--uq-brand); }
.uqidx__icon--convert  { color: var(--uq-accent); }
.uqidx__icon--edu      { color: var(--uq-good); }
.uqidx__icon--general  { color: var(--uq-caution); }
.uqidx__icon--other    { color: var(--uq-mute); }

.uqidx__section { margin-bottom: 2.4rem; }
.uqidx__section:last-child { margin-bottom: 0; }
.uqidx__section-title {
  display: flex; align-items: center; gap: 10px;
  font-size: 18px; font-weight: 700; color: var(--uq-ink);
  letter-spacing: -.01em; margin: 0 0 1rem;
}
.uqidx__section-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 9px; background: var(--uq-panel);
  flex: none;
}
.uqidx__section-icon svg { width: 18px; height: 18px; }

/* ── "সবচেয়ে বেশি ব্যবহৃত" — a horizontally scrolling strip of compact
   cards, deliberately a different rhythm from the grid below so it reads
   as a distinct shelf, not a duplicated section. ─────────────────────── */
.uqidx__strip {
  display: flex; gap: 14px; overflow-x: auto; padding-bottom: 6px;
  -webkit-overflow-scrolling: touch; scrollbar-width: thin;
}
.uqidx__scard {
  flex: none; width: 240px; display: flex; flex-direction: column;
  text-decoration: none; color: inherit;
  border: 1px solid var(--uq-line); border-radius: var(--uq-radius-sm);
  overflow: hidden; background: var(--uq-bg);
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.uqidx__scard:hover {
  transform: translateY(-2px);
  box-shadow: rgba(22, 35, 79, .12) 0 10px 22px;
  border-color: var(--uq-brand);
}
.uqidx__scard-media {
  aspect-ratio: 16 / 9; width: 100%; background: var(--uq-panel);
  display: flex; align-items: center; justify-content: center;
}
.uqidx__scard-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.uqidx__scard-media svg { width: 34px; height: 34px; }
.uqidx__scard-body { padding: .8rem .9rem 1rem; display: flex; flex-direction: column; gap: .3rem; }
.uqidx__scard-cat {
  font-size: 11.5px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--uq-brand);
}
.uqidx__scard-title { font-size: 14.5px; font-weight: 700; color: var(--uq-ink); line-height: 1.4; }

/* ── Main grid cards ───────────────────────────────────── */
.uqidx__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

.uqidx__card {
  display: flex; flex-direction: column;
  background: var(--uq-bg); border: 1px solid var(--uq-line);
  border-radius: var(--uq-radius);
  overflow: hidden; text-decoration: none; color: inherit;
  box-shadow: rgba(22, 35, 79, .05) 0 6px 18px;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.uqidx__card:hover {
  transform: translateY(-3px);
  box-shadow: rgba(22, 35, 79, .14) 0 16px 32px;
  border-color: var(--uq-brand);
}

/* Media block: a real featured image when the tool's page has one, or a
   tinted icon tile as a branded placeholder instead of empty space — the
   old version simply skipped straight to the text body when no image was
   set, which most tools hit since not every page has a thumbnail yet. */
.uqidx__card-media {
  position: relative; aspect-ratio: 1200 / 630; width: 100%;
  background: var(--uq-panel); display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.uqidx__card-image { width: 100%; height: 100%; object-fit: cover; display: block; }
.uqidx__card-media-icon { width: 25%; max-width: 64px; opacity: .5; }
.uqidx__card-media-icon svg { width: 100%; height: 100%; }

.uqidx__card-badge {
  position: absolute; top: 10px; left: 10px;
  display: inline-flex; align-items: center; gap: 5px;
  background: rgba(255, 255, 255, .94); color: var(--uq-ink);
  font-size: 11.5px; font-weight: 700; padding: 5px 10px 5px 8px;
  border-radius: 999px; box-shadow: rgba(6, 12, 30, .12) 0 2px 8px;
}
.uqidx__card-badge-icon { display: inline-flex; width: 13px; height: 13px; }
.uqidx__card-badge-icon svg { width: 100%; height: 100%; }

.uqidx__card-body {
  display: flex; flex-direction: column; gap: .45rem; flex: 1;
  padding: 1.2rem 1.3rem 1.3rem;
}
.uqidx__card-title {
  font-size: 18px; font-weight: 700; color: var(--uq-ink);
  letter-spacing: -.01em; line-height: 1.35;
}
.uqidx__card-desc {
  font-size: 14.5px; line-height: 1.6; color: var(--uq-soft); flex: 1;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.uqidx__card-cta {
  font-size: 14px; font-weight: 700; color: var(--uq-brand); margin-top: .2rem;
  transition: transform .15s;
}
/* Bengali reads left-to-right, same as English, so "forward" is a right
   arrow moving further right on hover — not a left arrow. */
.uqidx__card:hover .uqidx__card-cta { transform: translateX(3px); }

@media (max-width: 560px) {
  .uqidx__hero { padding: 1.8rem 1.4rem; }
  .uqidx__hero-title { font-size: 22px; }
  .uqidx__grid { grid-template-columns: 1fr; }
  .uqidx__scard { width: 200px; }
}