/* =============================================================================
   RIDGELINE POOLS — add-ons.css
   Luxury Features & Add-Ons: filterable card grid with a maroon gradient +
   default caption that fades on hover, and a click-to-enlarge lightbox.
   Loads after global.css + nav-hero.css. Mobile-first.
============================================================================= */

#addons { background: var(--grey-50); }

/* ── Header ───────────────────────────────────────────────────────────── */
.addon-header { max-width: 760px; margin: 0 auto 2rem; text-align: center; }
.addon-header .eyebrow { justify-content: center; }
.addon-header h2 { margin-bottom: 1rem; }
.addon-header p { color: var(--text-body); max-width: 60ch; margin: 0 auto; }

/* ── Filter pills ─────────────────────────────────────────────────────── */
.addon-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}
.addon-filter {
  padding: 0.5rem 1.1rem;
  background: var(--white);
  border: 1.5px solid var(--grey-200);
  border-radius: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-body);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition),
              color var(--transition), transform var(--transition);
}
.addon-filter:hover { border-color: var(--maroon-lt); transform: translateY(-1px); }
.addon-filter.is-active { background: var(--maroon); border-color: var(--maroon); color: var(--white); }

/* ── Grid ─────────────────────────────────────────────────────────────── */
.addon-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 600px)  { .addon-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; } }
@media (min-width: 992px)  { .addon-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; } }

/* ── Card ─────────────────────────────────────────────────────────────── */
.addon-card {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  margin: 0;
  text-align: left;
  border: none;
  border-radius: 0;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--grey-300);
  cursor: pointer;
}
.addon-card.is-hidden { display: none; }

.addon-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

/* Maroon gradient (default on) */
.addon-card::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(to top,
    rgba(30, 0, 0, 0.92) 0%,
    rgba(46, 0, 0, 0.2) 42%,
    rgba(0, 0, 0, 0.12) 100%);
  transition: opacity 0.35s ease;
}

/* Default caption (title + desc + price) */
.addon-info {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  padding: 1rem 1.1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
  transition: opacity 0.3s ease, transform 0.35s ease;
}
.addon-info-cat {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
}
.addon-info-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  line-height: 1.05;
  color: var(--white);
}
.addon-info-desc {
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.45;
  color: rgba(255,255,255,0.85);
  margin-top: 0.1rem;
}
.addon-info-price {
  align-self: flex-start;
  margin-top: 0.6rem;
  background: rgba(255,255,255,0.16);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--white);
}

/* Click-to-enlarge cue (appears on hover) */
.addon-zoom {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  z-index: 3;
  width: 3rem; height: 3rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  color: var(--maroon);
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.addon-zoom svg { width: 1.3rem; height: 1.3rem; }

/* Hover/focus: gradient + caption fade out, image zooms, cue appears.
   Wrapped in hover-capable query so touch devices keep the caption visible. */
@media (hover: hover) {
  .addon-card:hover img,
  .addon-card:focus-visible img { transform: scale(1.06); }

  .addon-card:hover::after,
  .addon-card:focus-visible::after { opacity: 0; }

  .addon-card:hover .addon-info,
  .addon-card:focus-visible .addon-info { opacity: 0; transform: translateY(10px); }

  .addon-card:hover .addon-zoom,
  .addon-card:focus-visible .addon-zoom { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
.addon-card:focus-visible { outline: 3px solid var(--maroon-lt); outline-offset: 2px; }

/* =============================================================================
   LIGHTBOX
============================================================================= */
.addon-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(10,10,10,0.9);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.addon-lightbox.is-open { opacity: 1; visibility: visible; }

.addon-lb-figure {
  position: relative;
  max-width: 1000px;
  width: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.addon-lb-figure img {
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  border-radius: 0;
  background: #000;
}
.addon-lb-cap { padding: 1rem 0.5rem 0; text-align: center; }
.addon-lb-cat {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--maroon-lt);
}
.addon-lb-cap h3 { color: var(--white); font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 0.3rem 0; }
.addon-lb-cap p { color: rgba(255,255,255,0.82); max-width: 56ch; margin: 0.25rem auto 0; font-size: 0.95rem; }
.addon-lb-price {
  display: inline-block;
  margin-top: 0.85rem;
  background: var(--maroon);
  color: var(--white);
  padding: 0.4rem 1.1rem;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
}

/* Controls */
.addon-lb-close,
.addon-lb-nav {
  position: fixed;
  z-index: 2010;
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.14);
  color: var(--white);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background var(--transition);
}
.addon-lb-close:hover,
.addon-lb-nav:hover { background: rgba(255,255,255,0.3); }
.addon-lb-close { top: 1.25rem; right: 1.25rem; }
.addon-lb-close svg { width: 1.3rem; height: 1.3rem; }
.addon-lb-nav { top: 50%; transform: translateY(-50%); }
.addon-lb-nav svg { width: 1.5rem; height: 1.5rem; }
.addon-lb-prev { left: 1rem; }
.addon-lb-next { right: 1rem; }

@media (min-width: 1080px) {
  .addon-lb-prev { left: 2rem; }
  .addon-lb-next { right: 2rem; }
}

/* =============================================================================
   CLOSING CTA BAND
============================================================================= */
.addon-cta {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  isolation: isolate;
}
.addon-cta-bg { position: absolute; inset: 0; z-index: -2; }
.addon-cta-bg img { width: 100%; height: 100%; object-fit: cover; display: block; }
.addon-cta::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(100deg, rgba(10,10,10,0.85) 0%, rgba(10,10,10,0.55) 55%, rgba(139,0,0,0.6) 100%);
}
.addon-cta-inner { padding: 3.5rem 1.5rem; text-align: center; max-width: 720px; margin: 0 auto; }
@media (min-width: 768px) { .addon-cta-inner { padding: 5rem 2rem; } }
.addon-cta-inner .eyebrow { justify-content: center; color: var(--maroon-lt); }
.addon-cta-inner h2 { color: var(--white); margin-bottom: 1rem; }
.addon-cta-inner p { color: rgba(255,255,255,0.85); margin: 0 auto 2rem; max-width: 52ch; }
.addon-cta-btns { display: flex; flex-wrap: wrap; gap: 0.85rem; justify-content: center; }