.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  padding: 12px 18px;
  font-weight: 700;
  line-height: 1.2;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary,
.button--dark {
  border-color: var(--color-black);
  background: var(--color-black);
  color: var(--color-white);
}

.button--light {
  border-color: var(--color-white);
  background: var(--color-white);
  color: var(--color-black);
}

.button--ghost {
  border-color: rgba(255, 255, 255, 0.76);
  color: var(--color-white);
}

.button--ghost-light {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--color-white);
}

.image-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--color-light-gray), var(--color-blue-gray));
}

.image-frame::before {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--color-gray);
  content: attr(data-placeholder);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.image-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-frame img[src*="hcl-logo"],
.image-frame img[src*="brand-message"],
.image-frame img[src*="detail-tags"] {
  object-fit: contain;
}

.image-frame img.is-missing {
  opacity: 0;
}

.image-frame--dark {
  background: linear-gradient(135deg, #171717, #3e4f56);
}

.detail-list {
  display: grid;
  gap: 18px;
  margin: 32px 0;
}

.detail-list li {
  border-top: 1px solid currentColor;
  padding-top: 18px;
  color: inherit;
  opacity: 0.86;
}

.faq-list {
  display: grid;
  gap: 10px;
  margin-top: 32px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-white);
}

.faq-item__button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 58px;
  border: 0;
  background: transparent;
  padding: 16px;
  color: var(--color-charcoal);
  font-weight: 700;
  text-align: left;
}

.faq-item__button::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 1.4rem;
}

.faq-item__button[aria-expanded="true"]::after {
  content: "-";
}

.faq-item__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.25s ease;
}

.faq-item__panel[aria-hidden="false"] {
  grid-template-rows: 1fr;
}

.faq-item__panel > div {
  overflow: hidden;
}

.faq-item__panel p {
  padding: 0 16px 18px;
  color: #4d4d49;
}

.sticky-purchase {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.96);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.08);
}

.sticky-purchase strong,
.sticky-purchase span {
  display: block;
  line-height: 1.35;
}