/* ============================================================
   F H W  —  floating FAQ widget
   Visible between the product catalogue and the order section.
   Lifts above the cart bar through --fhw-lift (set in faq.js).
   ============================================================ */

html.is-scroll-locked { overflow: hidden; scrollbar-gutter: stable; }

#fhw-root {
  --fhw-edge: clamp(16px, 2.5vw, 28px);
  --fhw-lift: 0px;
  position: fixed;
  right: var(--fhw-edge);
  bottom: calc(var(--fhw-edge) + var(--fhw-lift));
  z-index: 95;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-sm);
  pointer-events: none;
  transition: opacity 0.5s var(--ease-standard), transform 0.5s var(--ease-standard), visibility 0.5s, bottom 0.3s var(--ease-organic);
}
#fhw-root.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(10px); }

.fhw-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 16, 12, 0.48);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s var(--ease-standard), visibility 0s;
}
#fhw-root.is-open .fhw-backdrop { opacity: 1; visibility: visible; pointer-events: auto; transition-duration: 0.34s, 0s; }
#fhw-root.is-closing .fhw-backdrop { visibility: visible; pointer-events: auto; }
#fhw-root .fhw-panel, #fhw-root .fhw-btn { position: relative; z-index: 1; }

/* ——— trigger: square ink block, typographic question mark ——— */
.fhw-btn {
  order: 3;
  flex: none;
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 16px 34px -14px rgba(20, 16, 12, 0.6);
  pointer-events: auto;
  transition: background-color 0.3s var(--ease-organic);
}
.fhw-btn:hover, #fhw-root.is-open .fhw-btn { background: var(--ember); }
.fhw-btn:focus-visible { outline-color: var(--ink); }
.fhw-btn .icon-ask {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  font-variation-settings: "opsz" 144;
  line-height: var(--leading-solid);
  transform: translateY(-1px);
}
.fhw-btn .icon-close { display: none; width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.4; }
#fhw-root.is-open .fhw-btn .icon-ask { display: none; }
#fhw-root.is-open .fhw-btn .icon-close { display: block; }

/* ——— panel ——— */
.fhw-panel {
  order: 1;
  width: min(380px, calc(100vw - 2 * var(--fhw-edge)));
  max-height: min(580px, calc(100dvh - var(--fhw-lift) - 120px));
  display: flex;
  flex-direction: column;
  background: var(--paper-wash);
  border: 1px solid var(--hairline);
  box-shadow: 0 28px 60px -28px rgba(20, 16, 12, 0.5);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.2s cubic-bezier(.22,1,.36,1), transform 0.2s cubic-bezier(.22,1,.36,1), visibility 0s;
}
#fhw-root.is-open .fhw-panel { opacity: 1; visibility: visible; pointer-events: auto; transform: none; transition-duration: 0.34s, 0.34s, 0s; }
#fhw-root.is-closing .fhw-panel { visibility: visible; pointer-events: auto; }

.fhw-head { padding: var(--space-lg) var(--space-lg) var(--space-md); border-bottom: 1px solid var(--hairline); }
.fhw-head h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  font-variation-settings: "opsz" 72;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--ink);
}

.fhw-body { flex: 1; overflow-y: auto; overscroll-behavior: contain; scrollbar-gutter: stable; }

/* ——— accordion ——— */
.fhw-faq { padding: var(--space-2xs) var(--space-lg) var(--space-md); }
.fhw-faq .faq-item:first-child { border-top: 0; }
.faq-item { border-top: 1px solid var(--hairline); }
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-md);
  padding: 14px 0;
  border: 0;
  background: none;
  text-align: left;
  font-family: var(--font-display);
  font-size: var(--text-body-compact);
  line-height: 1.35;
  color: var(--ink);
  transition: color 0.28s var(--ease-standard);
}
.faq-item:not(.is-open) .faq-q:hover { color: var(--ember); }
.faq-item.is-open .faq-q { color: var(--ember); }
.faq-icon {
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 3px;
  fill: none;
  stroke: var(--ink-60);
  stroke-width: 1;
  shape-rendering: crispEdges;
  transition: transform 0.34s cubic-bezier(.22,1,.36,1), stroke 0.34s var(--ease-standard);
}
.faq-item.is-open .faq-icon { transform: rotate(45deg); stroke: var(--ember-deep); }
.faq-a {
  padding: 0 0 var(--space-md);
  max-width: 38ch;
  font-size: var(--text-body-sm);
  line-height: var(--leading-note);
  color: var(--ink-60);
}
#fhw-root.is-enhanced .faq-a { height: 0; overflow: hidden; padding: 0; transition: height 0.34s cubic-bezier(.22,1,.36,1); }
.faq-a-inner { padding: 0 0 var(--space-md); }

@media (prefers-reduced-motion: reduce) {
  #fhw-root { transition: opacity 0.15s linear; }
  #fhw-root.is-hidden { transform: none; }
  #fhw-root .fhw-panel, #fhw-root.is-open .fhw-panel,
  #fhw-root .fhw-backdrop, #fhw-root.is-open .fhw-backdrop { transition: none; transform: none; }
  #fhw-root.is-enhanced .faq-a, .faq-icon, .fhw-btn { transition: none; }
}