.page-faq {
  --faq-card-radius: 12px;
  --faq-hair: 1px solid var(--mist);
  background: var(--moon);
}

/* ---------- Hero ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(110% 130% at 88% 6%, #12405f 0%, rgba(10, 46, 74, 0) 58%),
    linear-gradient(168deg, var(--deep-sea) 0%, var(--night) 100%);
  color: var(--moon);
  padding: clamp(24px, 4vw, 40px) 0 clamp(46px, 7vw, 82px);
}

.page-faq .faq-hero__glow {
  position: absolute;
  right: -14%;
  bottom: -46%;
  width: min(620px, 80vw);
  height: min(620px, 80vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 138, 138, 0.5) 0%, rgba(30, 138, 138, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-faq .faq-hero__crumbs,
.page-faq .faq-hero__crumbs .breadcrumbs__link {
  color: var(--mist);
}

.page-faq .faq-hero__crumbs .breadcrumbs__sep {
  color: var(--tide);
}

.page-faq .faq-hero .eyebrow {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 5.4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--moon);
  margin: 0.4em 0 0.55em;
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  color: var(--mist);
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.9;
  max-width: 60ch;
  margin: 0;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(217, 226, 232, 0.2);
  border: 1px solid rgba(217, 226, 232, 0.2);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.page-faq .faq-hero__facts li {
  background: rgba(255, 255, 255, 0.05);
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-faq .faq-hero__fact-num {
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  font-weight: 600;
  line-height: 1;
  color: var(--coral);
}

.page-faq .faq-hero__fact-label {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--mist);
  letter-spacing: 0.03em;
}

/* ---------- Topic index ---------- */

.page-faq .faq-index {
  background: var(--moon);
}

.page-faq .faq-index__figure {
  margin: 0 0 clamp(26px, 4vw, 42px);
}

.page-faq .faq-index__figure .media-frame {
  border: var(--faq-hair);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: linear-gradient(140deg, var(--deep-sea), var(--tide));
}

.page-faq .faq-index__figure img,
.page-faq .faq-install__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-index__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-index__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 18px 20px 20px;
  background: var(--sand);
  border: var(--faq-hair);
  border-radius: var(--faq-card-radius);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-faq .faq-index__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--tide);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.3s var(--ease);
}

.page-faq .faq-index__card:hover,
.page-faq .faq-index__card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--tide);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-index__card:hover::before,
.page-faq .faq-index__card:focus-visible::before {
  transform: scaleY(1);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--coral);
}

.page-faq .faq-index__title {
  font-family: var(--font-serif);
  font-size: 1.14rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--deep-sea);
}

.page-faq .faq-index__desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- Q&A blocks ---------- */

.page-faq .faq-block {
  scroll-margin-top: 110px;
}

.page-faq .faq-block__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-faq .faq-block__aside {
  min-width: 0;
}

.page-faq .faq-block__intro {
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--steel);
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  gap: 8px;
}

.page-faq .faq-checklist li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 12px;
  background: var(--moon);
  border: var(--faq-hair);
  border-radius: 10px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--deep-sea);
}

.page-faq .faq-checklist__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--coral);
  flex: none;
}

/* ---------- Panels ---------- */

.page-faq .panel-list {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-faq .panel {
  background: var(--moon);
  border: var(--faq-hair);
  border-radius: var(--faq-card-radius);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-faq .panel:focus-within {
  border-color: var(--tide);
  box-shadow: 0 0 0 3px rgba(30, 138, 138, 0.14);
}

.page-faq .panel h3 {
  margin: 0;
  font-size: 1rem;
}

.page-faq .panel__trigger {
  position: relative;
  display: block;
  width: 100%;
  padding: 16px 54px 16px 18px;
  background: none;
  border: 0;
  border-radius: var(--faq-card-radius);
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  text-align: left;
  color: var(--deep-sea);
  cursor: pointer;
}

.page-faq .panel__trigger::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 15px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--coral);
  background: rgba(255, 107, 74, 0.1);
  border-radius: 50%;
  transition: background-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq .panel__trigger:hover::after {
  background: rgba(255, 107, 74, 0.2);
  transform: scale(1.08);
}

.page-faq .panel__trigger[aria-expanded="true"]::after {
  content: "\2212";
  background: rgba(255, 107, 74, 0.22);
  transform: none;
}

.page-faq .panel__content {
  padding: 0 18px 18px;
  font-size: 0.97rem;
  line-height: 1.9;
  color: var(--steel);
  min-width: 0;
}

.page-faq .panel__content[hidden] {
  display: none;
}

.page-faq .panel__content > *:first-child {
  margin-top: 0;
}

.page-faq .panel__content > *:last-child {
  margin-bottom: 0;
}

.page-faq .panel__content p {
  margin: 0 0 12px;
}

.page-faq .panel__content ul {
  margin: 0 0 12px;
  padding-left: 1.15em;
}

/* ---------- Installation specs ---------- */

.page-faq .faq-install__figure {
  margin: 0 0 20px;
}

.page-faq .faq-install__figure .media-frame {
  border: var(--faq-hair);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: linear-gradient(140deg, var(--tide), var(--deep-sea));
}

.page-faq .faq-specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(142px, 1fr));
  gap: 10px;
}

.page-faq .faq-specs li {
  padding: 12px 14px;
  background: var(--moon);
  border: var(--faq-hair);
  border-radius: 10px;
  min-width: 0;
}

.page-faq .faq-specs__k {
  display: block;
  margin-bottom: 5px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-specs__v {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--deep-sea);
}

/* ---------- Channel table ---------- */

.page-faq .faq-channels {
  margin-top: 4px;
}

.page-faq .faq-channels__caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 8px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-faq .faq-channels td:nth-child(2) {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--coral-deep);
  white-space: nowrap;
}

/* ---------- Tiers ---------- */

.page-faq .faq-tiers {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-tiers li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 16px 14px;
  background: var(--moon);
  border: var(--faq-hair);
  border-left: 3px solid var(--coral);
  border-radius: 10px;
  min-width: 0;
}

.page-faq .faq-tiers__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  line-height: 1;
  color: var(--deep-sea);
}

.page-faq .faq-tiers__unit {
  font-size: 0.85rem;
  color: var(--steel);
}

/* ---------- Contact ---------- */

.page-faq .faq-contact {
  scroll-margin-top: 110px;
}

.page-faq .faq-contact .eyebrow,
.page-faq .faq-contact h2 {
  color: var(--moon);
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-faq .faq-contact__lede {
  margin: 0 0 22px;
  font-size: 1rem;
  line-height: 1.95;
  color: var(--mist);
  max-width: 58ch;
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-contact__item {
  padding-left: 14px;
  border-left: 2px solid var(--tide);
  min-width: 0;
}

.page-faq .faq-contact__label {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tide);
}

.page-faq .faq-contact__value {
  display: block;
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--moon);
  word-break: break-word;
}

/* ---------- Responsive ---------- */

@media (min-width: 640px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-faq .faq-hero__facts {
    margin-bottom: 6px;
  }

  .page-faq .faq-index__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-block__layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-block__aside {
    position: sticky;
    top: 108px;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-tiers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero h1 {
    max-width: 18ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__card,
  .page-faq .panel__trigger::after,
  .page-faq .faq-index__card::before {
    transition: none;
  }

  .page-faq .faq-index__card:hover,
  .page-faq .faq-index__card:focus-visible {
    transform: none;
  }
}