/* ============================================================
   ATLAS GUIDE | COMPARE HUB v6 | /css/compare-hub.css
   ------------------------------------------------------------
   Load after compare-v6.css (tokens, rails, buttons, motion).
   Prefix: hub-   Behaviour: /js/compare.js ([data-cmp-hub],
   [data-cmp-duel]). Replaces the old /css/compare.css on /compare/.
   ============================================================ */

/* ============================================================
   1 | HERO | a rotating duel
   ============================================================ */
.hub-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: clamp(600px, 90vh, 880px);
  min-height: clamp(600px, 90svh, 880px);
  padding-top: var(--cmp-header);
  overflow: hidden;
  isolation: isolate;
  color: var(--cmp-parchment);
  background: var(--cmp-darkest);
}
.hub-plates {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.hub-plate { position: relative; overflow: hidden; background: var(--cmp-deep); }
.hub-plate img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  filter: saturate(0.92);
  transform: scale(1.04);
  transition: opacity 1.2s ease, transform 6s var(--cmp-ease);
}
.hub-plate img.is-on { opacity: 1; transform: scale(1); }
/* seam, neatline and wash */
.hub-plates::after {
  content: "";
  position: absolute;
  z-index: 2;
  top: calc(var(--cmp-header) + 16px);
  bottom: 0;
  left: 50%;
  width: 1px;
  margin-left: -0.5px;
  background: linear-gradient(180deg, var(--cmp-gold), rgba(201, 168, 92, 0.1) 80%);
}
.hub-plates::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: calc(var(--cmp-header) + 16px) 18px 18px;
  border: 1px solid rgba(201, 168, 92, 0.3);
  pointer-events: none;
  background:
    linear-gradient(var(--cmp-gold), var(--cmp-gold)) 0 0 / 20px 2px no-repeat,
    linear-gradient(var(--cmp-gold), var(--cmp-gold)) 0 0 / 2px 20px no-repeat,
    linear-gradient(var(--cmp-gold), var(--cmp-gold)) 100% 0 / 20px 2px no-repeat,
    linear-gradient(var(--cmp-gold), var(--cmp-gold)) 100% 0 / 2px 20px no-repeat,
    linear-gradient(var(--cmp-gold), var(--cmp-gold)) 0 100% / 20px 2px no-repeat,
    linear-gradient(var(--cmp-gold), var(--cmp-gold)) 0 100% / 2px 20px no-repeat,
    linear-gradient(var(--cmp-gold), var(--cmp-gold)) 100% 100% / 20px 2px no-repeat,
    linear-gradient(var(--cmp-gold), var(--cmp-gold)) 100% 100% / 2px 20px no-repeat;
  animation: cmp-fade 1s ease 0.3s both;
}
.hub-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(0deg, rgba(13, 33, 24, 0.97) 0%, rgba(13, 33, 24, 0.82) 30%, rgba(13, 33, 24, 0.25) 62%, rgba(13, 33, 24, 0.55) 100%),
    linear-gradient(90deg, rgba(13, 33, 24, 0.55) 0%, transparent 55%);
}

/* the two names, flanking the seam */
.hub-plate-name {
  position: absolute;
  z-index: 3;
  top: calc(var(--cmp-header) + 40px);
  font-family: var(--cmp-display);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(1.3rem, 2.6vw, 2.3rem);
  line-height: 1.1;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.55);
  transition: opacity 0.4s ease, translate 0.6s var(--cmp-ease);
}
.hub-plate--a .hub-plate-name { right: clamp(52px, 5vw, 70px); text-align: right; }
.hub-plate--b .hub-plate-name { left: clamp(52px, 5vw, 70px); }
.hub-plate-name.is-out { opacity: 0; translate: 0 10px; }

.hub-seal {
  position: absolute;
  z-index: 3;
  top: calc(var(--cmp-header) + 14px);
  left: 50%;
  display: grid;
  place-items: center;
  width: clamp(64px, 7vw, 92px);
  aspect-ratio: 1;
  margin-left: calc(clamp(64px, 7vw, 92px) / -2);
  border-radius: 50%;
  font-family: var(--cmp-display);
  font-style: italic;
  font-size: clamp(1.1rem, 1.7vw, 1.6rem);
  color: var(--cmp-gold-soft);
  background: radial-gradient(circle at 50% 30%, #24503b 0%, var(--cmp-darkest) 72%);
  box-shadow:
    0 0 0 1px rgba(201, 168, 92, 0.8),
    0 0 0 5px var(--cmp-darkest),
    0 0 0 6px rgba(201, 168, 92, 0.42),
    0 16px 34px -12px rgba(0, 0, 0, 0.75);
  animation: cmp-seal 0.8s var(--cmp-spring) 0.3s both;
}
.hub-seal.is-flip { animation: hub-flip 0.7s var(--cmp-spring); }
@keyframes hub-flip {
  0% { transform: rotateY(0) scale(1); }
  50% { transform: rotateY(90deg) scale(0.9); }
  100% { transform: rotateY(0) scale(1); }
}

.hub-hero-body {
  position: relative;
  z-index: 3;
  width: 100%;
  padding-bottom: clamp(44px, 7vh, 76px);
}
.hub-crumbs { margin-bottom: 18px; font-size: 0.8rem; color: rgba(245, 240, 232, 0.66); animation: cmp-rise 0.7s var(--cmp-ease) 0.1s both; }
.hub-crumbs a { color: var(--cmp-gold-soft); text-decoration: none; }
.hub-crumbs a:hover { text-decoration: underline; }
.hub-crumbs span[aria-hidden] { margin: 0 6px; opacity: 0.6; }
.hub-hero .cmp-eyebrow { color: var(--cmp-gold-soft); animation: cmp-rise 0.7s var(--cmp-ease) 0.18s both; }
.hub-title {
  margin: 4px 0 18px;
  max-width: 13ch;
  font-family: var(--cmp-display);
  font-size: clamp(2.6rem, 6vw, 5.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.035em;
  color: #fff;
  text-wrap: balance;
  animation: cmp-rise 0.8s var(--cmp-ease) 0.25s both;
}
.hub-title em { font-style: italic; font-weight: 400; color: var(--cmp-gold-soft); }
.hub-sub {
  margin: 0 0 26px;
  max-width: 54ch;
  padding-left: 18px;
  border-left: 2px solid var(--cmp-gold);
  font-size: 1.05rem;
  line-height: 1.72;
  color: rgba(245, 240, 232, 0.86);
  animation: cmp-rise 0.7s var(--cmp-ease) 0.35s both;
}
.hub-actions { display: flex; flex-wrap: wrap; gap: 10px; animation: cmp-rise 0.7s var(--cmp-ease) 0.45s both; }
.cmp-btn--gold { color: var(--cmp-darkest); background: linear-gradient(135deg, #f3d596, #c9a24b); }
.cmp-btn--gold:hover { filter: brightness(1.06); transform: translateY(-2px); box-shadow: 0 12px 26px -14px rgba(201, 168, 92, 0.8); }
.cmp-btn--ghost { color: var(--cmp-parchment); background: rgba(245, 240, 232, 0.06); border-color: rgba(245, 240, 232, 0.24); }
.cmp-btn--ghost:hover { border-color: var(--cmp-gold); color: #fff; transform: translateY(-2px); }

.hub-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px 32px;
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid rgba(245, 240, 232, 0.14);
  animation: cmp-rise 0.7s var(--cmp-ease) 0.55s both;
}
.hub-stats { display: flex; flex-wrap: wrap; gap: 8px 34px; margin: 0; }
.hub-stats div { display: grid; gap: 4px; }
.hub-stats dd { margin: 0; order: -1; font-family: var(--cmp-display); font-size: 2rem; font-weight: 700; line-height: 1; color: var(--cmp-gold-soft); }
.hub-stats dt { font-size: 0.78rem; font-weight: 600; color: rgba(245, 240, 232, 0.62); }

/* rotation controls */
.hub-duel-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.hub-duel-dot {
  appearance: none;
  margin: 0;
  padding: 7px 12px;
  border: 1px solid rgba(245, 240, 232, 0.2);
  border-radius: 999px;
  font-family: var(--cmp-body);
  font-size: 0.76rem;
  font-weight: 600;
  color: rgba(245, 240, 232, 0.72);
  background: rgba(13, 33, 24, 0.4);
  cursor: pointer;
  transition: color 0.2s, background-color 0.2s, border-color 0.2s;
}
.hub-duel-dot:hover { color: #fff; border-color: var(--cmp-gold); }
.hub-duel-dot[aria-current="true"] { color: var(--cmp-darkest); background: var(--cmp-gold-soft); border-color: var(--cmp-gold-soft); }
.hub-duel-pause {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin: 0 0 0 4px;
  padding: 0;
  appearance: none;
  border: 1px solid rgba(245, 240, 232, 0.24);
  border-radius: 50%;
  color: var(--cmp-parchment);
  background: rgba(13, 33, 24, 0.4);
  cursor: pointer;
}
.hub-duel-pause:hover { border-color: var(--cmp-gold); }
.hub-duel-pause::before {
  content: "";
  width: 10px;
  height: 10px;
  background:
    linear-gradient(currentColor, currentColor) 1px 0 / 3px 100% no-repeat,
    linear-gradient(currentColor, currentColor) 6px 0 / 3px 100% no-repeat;
}
.hub-duel-pause[aria-pressed="true"]::before {
  background: currentColor;
  clip-path: polygon(15% 0, 100% 50%, 15% 100%);
}
.hub-duel-dot:focus-visible, .hub-duel-pause:focus-visible { outline: 2px solid var(--cmp-gold); outline-offset: 2px; }

/* ============================================================
   2 | FILTER RAIL
   ============================================================ */
.hub-filter {
  position: sticky;
  top: var(--cmp-header);
  z-index: 60;
  scroll-margin-top: var(--cmp-header);
  background: rgba(245, 240, 232, 0.92);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  backdrop-filter: blur(12px) saturate(1.2);
  border-bottom: 1px solid var(--cmp-line-2);
}
.hub-filter-inner { display: flex; align-items: center; gap: 14px; padding-block: 10px; }
.hub-search {
  flex: none;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 14px;
  min-height: 42px;
  color: var(--cmp-muted);
  background: var(--cmp-paper);
  border: 1px solid var(--cmp-line-2);
  border-radius: 999px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.hub-search:focus-within { border-color: var(--cmp-gold); box-shadow: 0 0 0 3px rgba(201, 168, 92, 0.18); }
.hub-search input {
  width: 200px;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-family: var(--cmp-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--cmp-ink);
}
.hub-search input::placeholder { color: var(--cmp-muted); }
.hub-pills {
  flex: 1;
  min-width: 0;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 24px), transparent);
          mask-image: linear-gradient(90deg, #000 calc(100% - 24px), transparent);
}
.hub-pills::-webkit-scrollbar { display: none; }
.hub-pill {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  margin: 0;
  padding: 0 15px;
  appearance: none;
  border: 1px solid var(--cmp-line-2);
  border-radius: 999px;
  font-family: var(--cmp-body);
  font-size: 0.86rem;
  font-weight: 600;
  white-space: nowrap;
  color: var(--cmp-deep);
  background: transparent;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s, transform 0.2s var(--cmp-ease);
}
.hub-pill b { font-family: var(--cmp-display); font-size: 0.82rem; color: var(--cmp-gold-ink); }
.hub-pill:hover { border-color: var(--cmp-gold); background: var(--cmp-paper); }
.hub-pill:active { transform: scale(0.97); }
.hub-pill[aria-pressed="true"] { color: var(--cmp-parchment); background: var(--cmp-deep); border-color: var(--cmp-deep); }
.hub-pill[aria-pressed="true"] b { color: var(--cmp-gold-soft); }
.hub-pill:focus-visible { outline: 2px solid var(--cmp-gold); outline-offset: 2px; }
/* result count: announced to screen readers, the pills already show counts */
.hub-count {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ============================================================
   3 | SECTIONS + CARDS
   ============================================================ */
.hub-main { padding-block: 28px 64px; }
.hub-section {
  padding-block: 44px 8px;
  scroll-margin-top: calc(var(--cmp-header) + 70px);
}
.hub-section[hidden] { display: none; }
.hub-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 6px 24px;
  padding-top: 18px;
  border-top: 2px solid var(--cmp-deep);
}
.hub-head .cmp-h2 { max-width: none; }
.hub-head-sub { margin: 6px 0 0; font-family: var(--cmp-display); font-style: italic; font-size: 1.08rem; color: var(--cmp-gold-ink); }
.hub-head-count { font-size: 0.82rem; font-weight: 600; color: var(--cmp-muted); }

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.hub-grid--featured { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.hub-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
  color: var(--cmp-ink);
  background: var(--cmp-paper);
  border: 1px solid var(--cmp-line);
  border-radius: 16px;
  box-shadow: var(--cmp-shadow);
  transition:
    opacity 0.7s ease calc(min(var(--i, 0), 5) * 50ms),
    translate 0.8s var(--cmp-ease) calc(min(var(--i, 0), 5) * 50ms),
    transform 0.35s var(--cmp-ease),
    border-color 0.3s,
    box-shadow 0.35s;
}
.hub-card[hidden] { display: none; }
.hub-card:hover { transform: translateY(-4px); border-color: rgba(201, 168, 92, 0.6); box-shadow: var(--cmp-shadow-lift); }
.hub-card:focus-visible { outline: 2px solid var(--cmp-gold); outline-offset: 3px; }
.cmp-motion .hub-card[data-reveal]:not(.is-in) { opacity: 0; translate: 0 18px; }

.hub-card-media {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  background: var(--cmp-deep);
}
.hub-grid--featured .hub-card-media { aspect-ratio: 16 / 9; }
.hub-card-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92);
  transition: transform 0.8s var(--cmp-ease), filter 0.5s;
}
.hub-card:hover .hub-card-media img { filter: saturate(1.05); }
.hub-card:hover .hub-card-media img:first-of-type { transform: scale(1.06) translateX(-4px); }
.hub-card:hover .hub-card-media img:last-of-type { transform: scale(1.06) translateX(4px); }
.hub-card-media::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: rgba(201, 168, 92, 0.75);
}
.hub-card-seal {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border-radius: 50%;
  font-family: var(--cmp-display);
  font-style: italic;
  font-size: 0.82rem;
  color: var(--cmp-gold-soft);
  background: var(--cmp-darkest);
  box-shadow: 0 0 0 1.5px var(--cmp-gold), 0 6px 16px -6px rgba(0, 0, 0, 0.6);
  transition: background-color 0.3s, color 0.3s, transform 0.5s var(--cmp-spring);
}
.hub-card:hover .hub-card-seal { color: var(--cmp-darkest); background: var(--cmp-gold-soft); transform: rotate(-10deg) scale(1.1); }

.hub-card-body { flex: 1; display: flex; flex-direction: column; gap: 8px; padding: 15px 18px 18px; }
.hub-card-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 0.35em;
  margin: 0;
  font-family: var(--cmp-display);
  font-size: 1.14rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--cmp-deep);
}
.hub-card-title em { font-style: italic; font-weight: 400; font-size: 0.86em; color: var(--cmp-gold-ink); }
.hub-card-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.hub-tag {
  padding: 1px 9px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--cmp-muted);
  background: rgba(26, 58, 43, 0.06);
}
.hub-card-verdict { margin-top: auto; padding-top: 10px; border-top: 1px dashed var(--cmp-line-2); }
.hub-card-verdict p { margin: 0 0 8px; font-size: 0.84rem; font-weight: 700; color: var(--cmp-gold-ink); }
.hub-card-verdict[data-lean^="-"] p { color: var(--cmp-a); }
.hub-card-verdict[data-lean="1"] p, .hub-card-verdict[data-lean="2"] p { color: var(--cmp-b); }
.hub-card-verdict .cmp-railbox { font-size: 0.72rem; }
.hub-card-cta {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--cmp-line-2);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--cmp-forest);
}
.hub-card-cta span {
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  transition: background-size 0.35s var(--cmp-ease);
}
.hub-card:hover .hub-card-cta span { background-size: 100% 1px; }
.hub-card-blurb { margin: 0; font-size: 0.9rem; line-height: 1.6; color: var(--cmp-ink-2); }

/* each card keeps its own side colours */
.hub-card { --cmp-a-tint: color-mix(in srgb, var(--cmp-a) 10%, transparent); --cmp-b-tint: color-mix(in srgb, var(--cmp-b) 10%, transparent); }

/* ============================================================
   4 | EMPTY STATE, METHOD, CLOSING
   ============================================================ */
.hub-empty {
  margin-top: 36px;
  padding: 56px 20px;
  text-align: center;
  background: var(--cmp-paper);
  border: 1px dashed rgba(201, 168, 92, 0.5);
  border-radius: 18px;
}
.hub-empty[hidden] { display: none; }
.hub-empty h2 { margin: 0 0 8px; font-family: var(--cmp-display); font-size: 1.5rem; color: var(--cmp-deep); }
.hub-empty p { margin: 0 auto 20px; max-width: 44ch; color: var(--cmp-muted); }

.hub-method {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px 48px;
  align-items: start;
  margin-top: 56px;
  padding: 34px 34px 30px;
  background: var(--cmp-paper);
  border: 1px solid var(--cmp-line);
  border-radius: 22px;
  box-shadow: var(--cmp-shadow);
  scroll-margin-top: calc(var(--cmp-header) + 70px);
}
.hub-method .cmp-h2 { font-size: clamp(1.6rem, 1.1rem + 1.6vw, 2.1rem); }
.hub-method p { margin: 14px 0 0; font-size: 0.97rem; line-height: 1.72; color: var(--cmp-ink-2); }
.hub-method p a { color: var(--cmp-forest); font-weight: 600; }
.hub-legend { display: grid; gap: 14px; margin: 0; }
.hub-legend div { display: grid; gap: 6px; }
.hub-legend dt { font-size: 0.86rem; font-weight: 700; color: var(--cmp-deep); }
.hub-legend dd { margin: 0; }
.hub-legend .cmp-railbox { font-size: 0.72rem; }

/* ============================================================
   5 | RESPONSIVE
   ============================================================ */
/* desktop: every filter visible, no hidden overflow to scroll */
@media (min-width: 901px) {
  .hub-pills {
    flex-wrap: wrap;
    overflow: visible;
    -webkit-mask-image: none;
            mask-image: none;
  }
  .hub-search input { width: 170px; }
  .hub-pill { padding: 0 13px; }
}
@media (max-width: 900px) {
  .hub-method { grid-template-columns: minmax(0, 1fr); padding: 26px 22px; }
  .hub-filter-inner { flex-wrap: wrap; }
  .hub-search { flex: 1 1 100%; }
  .hub-search input { width: 100%; }
}
@media (max-width: 640px) {
  .hub-hero { min-height: 0; padding-top: calc(var(--cmp-header) + 250px); }
  .hub-plates { bottom: auto; height: calc(var(--cmp-header) + 300px); }
  .hub-plates::before { display: none; }
  .hub-plates::after { top: var(--cmp-header); }
  .hub-plate-name { top: calc(var(--cmp-header) + 18px); font-size: 1.15rem; }
  .hub-plate--a .hub-plate-name { right: 16px; }
  .hub-plate--b .hub-plate-name { left: 16px; }
  .hub-seal { margin-left: -32px; }
  .hub-seal { top: calc(var(--cmp-header) + 150px); }
  .hub-hero::after {
    background: linear-gradient(180deg, rgba(13, 33, 24, 0.35) 0%, transparent calc(var(--cmp-header) + 120px), rgba(13, 33, 24, 0.9) calc(var(--cmp-header) + 250px), var(--cmp-darkest) calc(var(--cmp-header) + 300px));
  }
  .hub-actions .cmp-btn { flex: 1 1 100%; justify-content: center; }
  .hub-stats dd { font-size: 1.6rem; }
  .hub-grid { grid-template-columns: minmax(0, 1fr); gap: 12px; }
}

[dir="rtl"] .hub-plate--a .hub-plate-name { right: auto; left: 30px; text-align: left; }
[dir="rtl"] .hub-plate--b .hub-plate-name { left: auto; right: 30px; }
[dir="rtl"] .hub-sub { padding-left: 0; padding-right: 18px; border-left: 0; border-right: 2px solid var(--cmp-gold); }

@media (prefers-reduced-motion: reduce) {
  .hub-plate img { transition: none; transform: none; }
}