/* Вироби, переваги, процес, шапка при скролі, анімації появи */

:root {
  --k-text: #221B12;
  --k-muted: rgba(34, 27, 18, .62);
  --k-line: rgba(34, 27, 18, .1);
  --k-card: #F4F3F1;
  --k-chip: #E2DCD3;
  --k-brown: #655234;
  --k-gold: #A88958;
  --k-dark: #151E1B;
}

.icon { width: 24px; height: 24px; flex: none; display: block; }
.icon--sm { width: 18px; height: 18px; }

/* ---------- Шапка: темна підкладка, коли сторінка прокручена ---------- */

.topbar {
  transition: background-color .25s, box-shadow .25s, backdrop-filter .25s;
}

.topbar.is-scrolled {
  background: rgba(21, 30, 27, .82);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .06);
}

/* ---------- Продукт ---------- */

.product {
  display: grid;
  gap: 20px;
}

.product__showcase {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 40px;
  padding: 48px;
  border-radius: 24px;
  color: #fff;
  background:
    radial-gradient(900px 420px at 100% 0%, rgba(168, 137, 88, .22), transparent 60%),
    var(--k-dark);
  overflow: hidden;
}

.product__intro {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  align-self: center;
}

.product__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--k-gold);
}

.product__eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
}

.product__heading {
  margin: 0 0 18px;
  display: grid;
  gap: 10px;
  font-size: inherit;
  letter-spacing: normal;
}

.product__name {
  font-family: "Play", "Noto Sans", sans-serif;
  font-size: clamp(48px, 7vw, 88px);
  line-height: .9;
  font-weight: 700;
  letter-spacing: .02em;
}

.product__title {
  font-size: 18px;
  line-height: 1.35;
  font-weight: 600;
  color: rgba(255, 255, 255, .85);
}

.product__desc {
  margin: 0 0 28px;
  max-width: 46ch;
  line-height: 1.6;
  color: rgba(255, 255, 255, .68);
}

.product__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--k-gold);
  color: #fff;
  transition: background-color .2s, transform .2s;
}

.product__cta:hover {
  background: #b8996a;
  transform: translateX(2px);
}

.product__media {
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.product__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

.product__showcase:hover .product__media img {
  transform: scale(1.03);
}

.product__stats {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin: 0;
  padding: 28px 0 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, .1);
}

.product__stat {
  display: grid;
  gap: 6px;
  padding: 4px 20px;
  border-left: 1px solid rgba(255, 255, 255, .1);
}

.product__stat:first-child {
  padding-left: 0;
  border-left: 0;
}

.product__stat-icon {
  color: var(--k-gold);
  margin-bottom: 6px;
}

.product__stat-value {
  font-family: "Play", "Noto Sans", sans-serif;
  font-size: clamp(26px, 2.6vw, 36px);
  line-height: 1;
  font-weight: 700;
}

.product__stat-value small {
  margin-left: 4px;
  font-size: .45em;
  font-weight: 400;
  color: rgba(255, 255, 255, .6);
}

.product__stat-label {
  font-size: 13px;
  line-height: 1.35;
  color: rgba(255, 255, 255, .6);
}

/* Характеристики */

.product__specs {
  padding: 40px 48px 48px;
  border-radius: 24px;
  background: var(--k-card);
}

.product__specs-title {
  margin: 0 0 28px;
  font-size: 24px;
  line-height: 1.3;
  font-weight: 700;
  text-transform: none;
  letter-spacing: normal;
}

.spec-groups {
  columns: 2;
  column-gap: 48px;
}

.spec-group {
  break-inside: avoid;
  margin-bottom: 32px;
}

.spec-group__title {
  margin: 0 0 6px;
  line-height: 1.3;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--k-brown);
}

.spec-list {
  margin: 0;
}

.spec-list__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--k-line);
}

.spec-list__row dt {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--k-muted);
}

.spec-list__row dd {
  margin: 0;
  align-self: center;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.45;
}

.spec-list__icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: none;
  border-radius: 10px;
  background: var(--k-chip);
  color: var(--k-brown);
}

.spec-list__icon .icon { width: 20px; height: 20px; }

/* ---------- Переваги ---------- */

.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.adv {
  display: flex;
  flex-direction: column;
  padding: 28px;
  border-radius: 16px;
  background: var(--k-card);
  transition: transform .25s, box-shadow .25s;
}

.adv:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px -20px rgba(34, 27, 18, .35);
}

.adv__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 40px;
  border-radius: 14px;
  background: var(--k-dark);
  color: var(--k-gold);
}

.adv__title {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: normal;
}

.adv__text {
  margin: 0;
  line-height: 1.55;
  color: var(--k-muted);
}

/* ---------- Процес ---------- */

.process {
  --gap: 24px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--gap);
  margin: 0 0 56px;
  padding: 0;
  list-style: none;
}

.process__marker {
  display: flex;
  align-items: center;
  margin-bottom: 24px;
}

/* лінія до наступного кроку */
.process__step:not(:last-child) .process__marker::after {
  content: "";
  flex: 1;
  height: 0;
  margin: 0 calc(-1 * var(--gap)) 0 12px;
  border-top: 2px dashed rgba(168, 137, 88, .45);
}

.process__icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  flex: none;
  border-radius: 50%;
  background: var(--k-dark);
  color: var(--k-gold);
  box-shadow: 0 0 0 6px var(--k-chip);
  transition: transform .25s;
}

.process__step:hover .process__icon {
  transform: scale(1.06);
}

.process__num {
  display: block;
  margin-bottom: 6px;
  font-family: "Play", "Noto Sans", sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--k-gold);
}

.process__title {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: normal;
}

.process__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--k-muted);
}

/* ---------- Анімація появи (лише коли є JS і користувач не вимкнув анімації) ---------- */

@media (prefers-reduced-motion: no-preference) {
  .js-reveal [data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .7s ease, transform .7s ease;
    transition-delay: var(--reveal-delay, 0s);
  }

  .js-reveal [data-reveal].is-visible {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Адаптив ---------- */

@media (max-width: 1100px) {
  .product__stats { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 28px; }
  .product__stat:nth-child(3n + 1) { padding-left: 0; border-left: 0; }
  .adv-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .product__showcase { grid-template-columns: 1fr; padding: 28px; gap: 28px; }
  .product__media { order: -1; }
  .product__specs { padding: 28px; }
  .spec-groups { columns: 1; }

  .process { grid-template-columns: 1fr; gap: 0; }
  .process__step { display: grid; grid-template-columns: 64px 1fr; column-gap: 20px; }
  .process__marker { flex-direction: column; margin: 0; }
  .process__step:not(:last-child) .process__marker::after {
    flex: 1;
    width: 0;
    min-height: 24px;
    margin: 8px 0;
    border-top: 0;
    border-left: 2px dashed rgba(168, 137, 88, .45);
  }
  .process__body { padding: 8px 0 32px; }
}

@media (max-width: 560px) {
  .product__showcase,
  .product__specs { padding: 20px; border-radius: 18px; }
  .product__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product__stat:nth-child(3n + 1) { padding-left: 20px; border-left: 1px solid rgba(255, 255, 255, .1); }
  .product__stat:nth-child(2n + 1) { padding-left: 0; border-left: 0; }
  .spec-list__row { grid-template-columns: 1fr; gap: 6px; }
  .adv-grid { grid-template-columns: 1fr; }
  .adv__icon { margin-bottom: 24px; }
}