/* =============================================================
   UTILITIES.CSS — Scroll button, z-index fixes, responsive
   ============================================================= */


/* ===== RESPONSIVE — MOBILE ===== */
@media (max-width: 768px) {
  .strain-list-container ul {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }

  .legend {
    flex-wrap: wrap;
    gap: 8px;
  }

  #strainInput {
    width: 100%;
    max-width: 280px !important;
    order: 2 !important;
    margin: 0 auto !important;
  }

  h1 {
    font-size: 28px;
  }

  .search-header {
    width: 100% !important;
    justify-content: center !important;
    order: 1 !important;
  }

  #randomStrain {
    order: 3 !important;
    justify-content: center !important;
  }
}



/* ===== STRAIN SCROLL CONTAINER ===== */
.strain-scroll-container {
  position: relative !important;
  height: 100% !important;
  overflow: hidden !important;
}

.strain-list-container {
  position: relative !important;
  max-height: 65vh !important;
  min-height: 300px !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  display: block !important;
}


/* ===== STRAIN SCROLL BUTTON ===== */
#strainScrollTop {
  position: fixed !important;
  bottom: 30px !important;
  right: 30px !important;
  background: linear-gradient(135deg, #00ff00, #00cc00) !important;
  color: #000 !important;
  border: none !important;
  width: 50px !important;
  height: 50px !important;
  border-radius: 50% !important;
  font-size: 24px !important;
  font-weight: bold !important;
  cursor: pointer !important;
  opacity: 0 !important;
  visibility: hidden !important;
  transform: translateY(20px) !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-shadow: 0 4px 20px rgba(0,255,0,0.6) !important;
  padding: 0 !important;
  line-height: 50px !important;
  text-align: center !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

#strainScrollTop.show {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) scale(1) !important;
}

#strainScrollTop:hover {
  transform: translateY(-3px) scale(1.1) !important;
  box-shadow: 0 6px 25px rgba(0,255,0,0.8) !important;
}

#strainScrollTop:active {
  transform: scale(0.9) !important;
}
/* ===== SCROLL HIDE: COLLAPSE HEADER SPACE ===== */
.header-image,
.visitor-counter-wrap,
.search-container,
.legend,
.instructions-bar {
  transition: opacity 0.25s ease, transform 0.25s ease, max-height 0.25s ease, margin 0.25s ease, padding 0.25s ease;
  overflow: hidden;
}

.scroll-hidden {
  opacity: 0 !important;
  transform: translateY(-12px) !important;
  pointer-events: none !important;
  max-height: 0 !important;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  border: 0 !important;
}
/* ===== TOP SECTION COLLAPSE WRAPPER ===== */
.top-controls-wrap {
  overflow: hidden;
  max-height: 900px;
  transform: translateY(0);
  opacity: 1;
  will-change: max-height, opacity, transform;
  transition:
    max-height 0.42s ease,
    opacity 0.22s ease,
    transform 0.28s ease,
    margin 0.42s ease,
    padding 0.42s ease;
}

.top-controls-wrap.scroll-hidden {
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  max-height: 0;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}