/* Fonday flyer — 01 skin tuner section */

.device-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(36px, 5vw, 64px);
  margin-top: clamp(36px, 6vh, 60px);
  align-items: center;
}
.device-photo {
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow-img);
  position: relative;
}
.device-photo figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 14px 18px;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: #FFF8F2;
  background: linear-gradient(transparent, rgba(30, 28, 25, 0.55));
}

/* measurement meters */
.meters {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.meters li { padding: 20px 14px 16px 0; border-right: 1px solid var(--line); }
.meters li:last-child { border-right: none; }
.m-num {
  display: block;
  font-family: var(--display);
  font-size: clamp(30px, 3.6vw, 44px);
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.m-num em { font-style: normal; font-size: 0.4em; color: var(--red); margin-left: 3px; }
.m-name { display: block; margin-top: 8px; font-size: 13px; color: var(--body); }

/* how-to 3 steps */
.howto {
  list-style: none;
  counter-reset: how;
  margin-top: 26px;
  border-top: 1px solid var(--line);
}
.howto li {
  counter-increment: how;
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.howto li::before {
  content: "0" counter(how);
  font-family: var(--display);
  font-size: 14px;
  color: var(--faint);
  flex: 0 0 2em;
}
.howto b { color: var(--ink); }

/* use scene + recommend */
.use-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(36px, 5vw, 64px);
  margin-top: clamp(44px, 7vh, 72px);
  align-items: center;
}
.use-photo { border-radius: 6px; overflow: hidden; box-shadow: var(--shadow-img); }
.use-copy h3 { font-size: clamp(20px, 2.6vw, 26px); }
.use-copy ul { list-style: none; margin-top: 20px; }
.use-copy li {
  padding: 12px 0 12px 30px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  color: var(--sub);
  position: relative;
}
.use-copy li::before {
  content: "✓";
  position: absolute;
  left: 2px;
  color: var(--red);
  font-weight: 700;
}
.use-note { margin-top: 18px; font-size: 13.5px; color: var(--faint); max-width: 30em; }

/* spec strip */
.spec-strip {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: clamp(44px, 7vh, 72px);
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.spec-strip b {
  display: block;
  font-size: 15px;
  color: var(--ink);
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.spec-strip span { display: block; margin-top: 4px; font-size: 13.5px; color: var(--body); }

/* FAQ */
.faq { margin-top: clamp(48px, 8vh, 80px); max-width: 720px; }
.faq h3 { font-size: clamp(19px, 2.4vw, 24px); margin-bottom: 10px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 28px 18px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--sub);
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 16px;
  font-family: var(--display);
  font-size: 20px;
  color: var(--faint);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary em {
  font-style: normal;
  font-family: var(--display);
  color: var(--red);
  margin-right: 8px;
}
.faq-item p { padding: 0 24px 20px 0; font-size: 14.5px; max-width: 38em; }

@media (max-width: 860px) {
  .device-grid, .use-grid { grid-template-columns: 1fr; }
  .spec-strip { grid-template-columns: repeat(2, 1fr); }
  .meters { grid-template-columns: repeat(2, 1fr); }
  .meters li:nth-child(2n) { border-right: none; }
  .meters li:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
}