.catalog-section { background: var(--surface); }
.catalog-inner {
  max-width: 1360px;
  margin-inline: auto;
  padding: 88px clamp(16px, 4vw, 40px);
}
.catalog-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}
.catalog-eyebrow {
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.catalog-heading h2 { font: 600 40px/1.15 var(--display); letter-spacing: -.025em; }
.catalog-heading > p { color: var(--muted); font-size: 16px; }
.catalog-filters { display: flex; gap: 8px; margin-bottom: 24px; }
.catalog-filters button {
  min-width: 128px;
  min-height: 48px;
  padding: 10px 24px;
  border: 2px solid #CDD1D7;
  border-radius: 12px;
  background: #fff;
  font-weight: 600;
}
.catalog-filters button[aria-pressed="true"] { color: #fff; background: var(--ink); border-color: var(--ink); }
.catalog-products { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; align-items: start; }
.catalog-product { overflow: hidden; background: #fff; border-radius: 24px; }
.catalog-photo {
  position: relative;
  display: grid;
  place-items: center;
  height: 240px;
  padding: 30px;
  border-bottom: 1px solid var(--surface);
}
.catalog-sheet-crop { width: min(100%, 416px); aspect-ratio: 2.7; overflow: hidden; }
.catalog-sheet-crop img { display: block; width: 100%; height: auto; transform: translateY(-20%); }
.catalog-sheet-facade img { transform: translateY(-12%); }
.catalog-product-content { padding: 24px 28px; }
.catalog-product-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 12px; }
.catalog-product-heading h3 { display: flex; align-items: center; gap: 12px; font: 600 32px/1.1 var(--display); letter-spacing: -.04em; }
.catalog-wave { width: 56px; height: 24px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linejoin: round; }
.catalog-product-reason { font-size: 18px; line-height: 1.4; }
.catalog-specification { margin-top: 12px; color: var(--muted); font-size: 14px; }
.catalog-specification span { margin-inline: 6px; }
.catalog-purchase { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 26px; }
.catalog-price { font-size: 29px; font-weight: 700; white-space: nowrap; letter-spacing: -.04em; }
.catalog-price small { font-size: 15px; font-weight: 500; letter-spacing: 0; }
.catalog-price span { font-size: 18px; letter-spacing: -.02em; }
.catalog-purchase .button { justify-content: space-between; gap: 20px; white-space: nowrap; }
.catalog-purchase .button > span { font-size: 23px; line-height: 1; }
.catalog-details { margin-top: 20px; }
.catalog-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  list-style: none;
}
.catalog-details summary::-webkit-details-marker { display: none; }
.catalog-details summary::after {
  content: '';
  width: 8px;
  height: 8px;
  margin-right: 3px;
  flex: none;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
}
.catalog-details[open] summary { background: #FFF6D1; border-color: #E1C45C; }
.catalog-details[open] summary::after { transform: translateY(2px) rotate(225deg); }
.catalog-details summary:focus-visible { outline: 3px solid #b88b00; outline-offset: 4px; }
.catalog-details p { margin-top: 14px; padding-inline: 4px; color: var(--muted); font-size: 15px; line-height: 1.55; max-width: 46ch; }
.catalog-offer { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 20px; padding: 24px 28px; border-radius: 20px; background: #FFF6D1; }
.catalog-offer p { display: flex; flex-direction: column; gap: 4px; }
.catalog-offer strong { font-size: 18px; font-weight: 600; }
.catalog-offer p span { color: var(--muted); font-size: 15px; }
.catalog-offer .button { flex: none; }
@media (max-width: 1100px) {
  .catalog-purchase { flex-direction: column; align-items: flex-start; gap: 14px; }
  .catalog-purchase .button { width: 100%; }
  .catalog-product-reason { min-height: 50px; }
  .catalog-offer { flex-wrap: wrap; }
}
@media (max-width: 760px) {
  .catalog-heading { display: block; margin-bottom: 22px; }
  .catalog-heading > p { margin-top: 14px; font-size: 14px; }
  .catalog-heading > p br { display: none; }
  .catalog-eyebrow { font-size: 12px; }
  .catalog-filters { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; margin-bottom: 18px; }
  .catalog-filters button { min-width: 0; padding-inline: 10px; font-size: 15px; }
  .catalog-products { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .catalog-product { border-radius: 20px; }
  .catalog-photo { height: 190px; padding: 20px; }
  .catalog-product-content { padding: 20px; }
  .catalog-product-heading h3 { font-size: 28px; }
  .catalog-product-reason { font-size: 16px; min-height: 0; }
  .catalog-specification { font-size: 13px; }
  .catalog-purchase { flex-direction: row; align-items: center; gap: 12px; margin-top: 22px; }
  .catalog-purchase .button { width: auto; min-height: 48px; padding: 11px 14px; font-size: 13px; gap: 12px; }
  .catalog-price { font-size: 25px; }
  .catalog-price span { font-size: 15px; }
  .catalog-price small { font-size: 12px; }
  .catalog-offer { padding: 20px; gap: 16px; }
  .catalog-offer strong { font-size: 16px; }
  .catalog-offer p span { font-size: 14px; }
  .catalog-offer .button { width: 100%; flex: auto; }
}
@media (max-width: 400px) {
  .catalog-purchase { flex-direction: column; align-items: stretch; }
  .catalog-purchase .button { width: 100%; }
  .catalog-product-heading { gap: 8px; }
  .catalog-product-heading h3 { gap: 8px; font-size: 25px; }
  .catalog-wave { width: 48px; }
}