/* Article FAQ — primary accent on section title only; Q&A stay neutral */

.article-faq {
  --faq-title-accent-soft: color-mix(in srgb, var(--color-primary) 14%, transparent);
  --faq-bg-hover: color-mix(in srgb, var(--color-text) 5%, var(--color-surface));
  --faq-bg-open: color-mix(in srgb, var(--color-text) 8%, var(--color-surface));
  --faq-icon-bg: color-mix(in srgb, var(--color-text) 7%, transparent);
  --faq-icon-bg-hover: color-mix(in srgb, var(--color-text) 11%, transparent);
  margin: 2.75rem 0;
  padding: 0;
}

.article-faq__title {
  margin: 0 0 1.5rem;
  padding: 0.35rem 0 0.65rem 1rem;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--color-text);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 0.25rem 0.25rem 0;
  background: linear-gradient(
    90deg,
    var(--faq-title-accent-soft) 0%,
    transparent 58%
  );
}

.article-faq__list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.article-faq__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.045);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.article-faq__item:hover {
  border-color: color-mix(in srgb, var(--color-text) 14%, var(--color-border-subtle));
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
}

.article-faq__item[open] {
  border-color: color-mix(in srgb, var(--color-text) 18%, var(--color-border-subtle));
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.07);
}

.article-faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.45;
  list-style: none;
  color: var(--color-text);
  user-select: none;
  transition: background 0.2s ease;
}

.article-faq__question:hover {
  background: var(--faq-bg-hover);
}

.article-faq__item[open] .article-faq__question {
  background: var(--faq-bg-open);
}

.article-faq__question:focus {
  outline: none;
}

.article-faq__question:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.article-faq__question::-webkit-details-marker {
  display: none;
}

.article-faq__question::marker {
  display: none;
}

.article-faq__question-text {
  flex: 1;
  text-align: left;
}

.article-faq__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--faq-icon-bg);
  border: 1px solid var(--color-border-subtle);
  transition:
    transform 0.25s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.article-faq__icon .material-icons {
  font-size: 1.375rem;
  color: var(--color-text-muted, var(--color-text));
  transition: color 0.2s ease;
}

.article-faq__item:hover .article-faq__icon {
  background: var(--faq-icon-bg-hover);
  border-color: color-mix(in srgb, var(--color-text) 12%, var(--color-border-subtle));
}

.article-faq__item[open] .article-faq__icon {
  transform: rotate(180deg);
}

.article-faq__answer {
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid var(--color-border-subtle);
  color: var(--color-text);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.article-faq__answer p {
  margin: 0.75rem 0 0;
}

.article-faq__answer p:first-child {
  margin-top: 0.75rem;
}

.article-faq__answer p:last-child {
  margin-bottom: 0;
}

@media (max-width: 48rem) {
  .article-faq {
    margin: 2.25rem 0;
  }

  .article-faq__title {
    font-size: 1.375rem;
    margin-bottom: 1.25rem;
    padding-left: 0.875rem;
  }

  .article-faq__question {
    padding: 0.875rem 1rem;
  }

  .article-faq__answer {
    padding: 0 1rem 1rem;
  }
}

/* Title gradient fallback */
@supports not (color: color-mix(in srgb, red, blue)) {
  .article-faq {
    --faq-title-accent-soft: rgba(255, 18, 18, 0.1);
    --faq-bg-hover: rgba(0, 0, 0, 0.04);
    --faq-bg-open: rgba(0, 0, 0, 0.06);
    --faq-icon-bg: rgba(0, 0, 0, 0.06);
    --faq-icon-bg-hover: rgba(0, 0, 0, 0.09);
  }
}

@media screen and (prefers-color-scheme: dark) {
  .article-faq {
    --faq-title-accent-soft: color-mix(in srgb, var(--color-primary) 18%, transparent);
    --faq-bg-hover: color-mix(in srgb, var(--color-text) 6%, var(--color-surface));
    --faq-bg-open: color-mix(in srgb, var(--color-text) 10%, var(--color-surface));
    --faq-icon-bg: color-mix(in srgb, var(--color-text) 9%, transparent);
    --faq-icon-bg-hover: color-mix(in srgb, var(--color-text) 14%, transparent);
  }

  .article-faq__item {
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.28);
  }

  .article-faq__item:hover {
    box-shadow: 0 4px 22px rgba(0, 0, 0, 0.32);
  }

  .article-faq__item[open] {
    box-shadow: 0 8px 26px rgba(0, 0, 0, 0.34);
  }

  @supports not (color: color-mix(in srgb, red, blue)) {
    .article-faq {
      --faq-bg-hover: rgba(255, 255, 255, 0.05);
      --faq-bg-open: rgba(255, 255, 255, 0.08);
      --faq-icon-bg: rgba(255, 255, 255, 0.08);
      --faq-icon-bg-hover: rgba(255, 255, 255, 0.12);
    }
  }
}