/* SPACEUTICS — single product page */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.product-page {
  background-color: #f9f6f4;
}

.product-main {
  position: relative;
  min-height: calc(100vh - 8rem);
  padding-bottom: clamp(2rem, 5vw, 3rem);
}

.product-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-color: #ebe6e1;
  background-image: url("../img/essence.jpg");
  background-size: cover;
  background-position: center;
  opacity: 0.45;
}

.product-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(249, 246, 244, 0.88) 0%,
    rgba(249, 246, 244, 0.75) 40%,
    rgba(249, 246, 244, 0.82) 100%
  );
}

.product-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--page-max);
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3.5rem) var(--showcase-gutter) 0;
}

/* —— Hero —— */

.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  margin-bottom: clamp(3rem, 7vw, 5rem);
}

.product-hero__media {
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(61, 53, 50, 0.08);
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.product-hero__media img {
  width: 100%;
  max-height: min(520px, 55vh);
  object-fit: contain;
  object-position: center;
  margin: 0 auto;
}

.product-hero__detail {
  padding-top: 0.5rem;
}

.product-hero__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 4.5vw, 3rem);
  letter-spacing: 0.02em;
  line-height: 1.12;
  color: var(--color-ink);
}

.product-hero__price {
  margin: 0 0 1.25rem;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-ink);
}

.product-rating {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  margin-bottom: 1.75rem;
}

.product-rating__stars {
  display: inline-flex;
  gap: 0.12em;
  font-size: 1.125rem;
  line-height: 1;
  letter-spacing: 0.02em;
  color: #c4a574;
}

.product-rating__text {
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.product-qty {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid rgba(61, 53, 50, 0.25);
  background: var(--color-white);
  margin-bottom: 1.5rem;
}

.product-qty button {
  width: 2.75rem;
  border: none;
  background: transparent;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-ink);
  cursor: pointer;
  transition: background 0.2s var(--ease-out);
}

.product-qty button:hover {
  background: rgba(61, 53, 50, 0.06);
}

.product-qty button:focus-visible {
  outline: 2px solid rgba(61, 53, 50, 0.35);
  outline-offset: -2px;
}

.product-qty input {
  width: 3.25rem;
  border: none;
  border-left: 1px solid rgba(61, 53, 50, 0.15);
  border-right: 1px solid rgba(61, 53, 50, 0.15);
  text-align: center;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-ink);
  background: transparent;
  -moz-appearance: textfield;
}

.product-qty input::-webkit-outer-spin-button,
.product-qty input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.product-hero__actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1rem;
  max-width: 22rem;
}

.btn--product-cart {
  width: 100%;
  min-height: 3.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(61, 53, 50, 0.12);
  box-shadow: 0 4px 20px rgba(61, 53, 50, 0.06);
}

.btn--product-cart:hover {
  background: var(--color-white);
}

.product-wishlist {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
  border: none;
  background: none;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  cursor: pointer;
}

.product-wishlist svg {
  width: 1.25rem;
  height: 1.25rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.4;
}

.product-wishlist:hover {
  opacity: 0.75;
}

.product-shipping-note {
  margin: 1.5rem 0 0;
  max-width: 22rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--color-ink-muted);
}

/* —— Tabs —— */

.product-tabs {
  margin-bottom: clamp(3rem, 7vw, 5rem);
}

.product-tabs__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 2.5rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  border: none;
}

.product-tabs__list button {
  padding: 0.5rem 0 1rem;
  border: none;
  border-bottom: 2px solid transparent;
  background: none;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  cursor: pointer;
  transition: color 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}

.product-tabs__list button:hover {
  color: var(--color-ink);
}

.product-tabs__list button[aria-selected="true"] {
  color: var(--color-ink);
  border-bottom-color: var(--color-ink);
}

.product-tabs__list button:focus-visible {
  outline: 2px solid rgba(61, 53, 50, 0.35);
  outline-offset: 4px;
}

.product-tabs__panel {
  display: none;
  max-width: 52rem;
  margin: 0 auto;
  padding: clamp(2rem, 4vw, 2.75rem) clamp(1.75rem, 4vw, 3rem);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(61, 53, 50, 0.1);
}

.product-tabs__panel.is-active {
  display: block;
}

.product-tabs__panel h3 {
  margin: 0 0 1.25rem;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 2.5vw, 1.875rem);
  letter-spacing: 0.02em;
  color: var(--color-ink);
  text-align: center;
}

.product-tabs__body {
  font-size: 1.0625rem;
  line-height: 1.75;
  letter-spacing: 0.03em;
  color: var(--color-ink-muted);
}

.product-tabs__body p {
  margin: 0 0 1rem;
}

.product-tabs__body p:last-child {
  margin-bottom: 0;
}

.product-tabs__body ul {
  margin: 0;
  padding-left: 1.25rem;
}

.product-tabs__body li {
  margin-bottom: 0.65rem;
}

.product-tabs__body strong {
  color: var(--color-ink);
  font-weight: 600;
}

/* —— Related —— */

.product-related {
  margin-bottom: clamp(3rem, 7vw, 5rem);
}

.product-related__title {
  margin: 0 0 clamp(2rem, 4vw, 2.75rem);
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  letter-spacing: 0.02em;
  text-align: center;
  color: var(--color-ink);
}

.product-related__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.25rem);
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
}

.product-related__grid .product-card {
  background: rgba(255, 255, 255, 0.92);
}

/* —— Newsletter —— */

.product-newsletter {
  text-align: center;
  padding: clamp(2.5rem, 5vw, 3.5rem) var(--page-gutter);
  margin: 0 calc(-1 * var(--showcase-gutter)) 0;
  border-top: 1px solid rgba(61, 53, 50, 0.08);
  background: rgba(255, 255, 255, 0.5);
}

.product-newsletter h2 {
  margin: 0 0 1.5rem;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  letter-spacing: 0.02em;
  color: var(--color-ink);
}

.product-newsletter form {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: 0.75rem;
  max-width: 32rem;
  margin: 0 auto;
}

.product-newsletter input[type="email"] {
  flex: 1 1 14rem;
  min-width: 0;
  padding: 0.9rem 1.15rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  letter-spacing: 0.03em;
  color: var(--color-ink);
  background: var(--color-white);
  border: 1px solid rgba(61, 53, 50, 0.22);
}

.product-newsletter input[type="email"]::placeholder {
  color: rgba(61, 53, 50, 0.45);
}

.product-newsletter input[type="email"]:focus {
  outline: none;
  border-color: rgba(61, 53, 50, 0.45);
}

.product-newsletter .btn--join {
  min-height: unset;
  padding: 0.9rem 1.75rem;
  flex: 0 0 auto;
}

@media (max-width: 900px) {
  .product-hero {
    grid-template-columns: 1fr;
  }

  .product-hero__actions,
  .product-shipping-note {
    max-width: none;
  }

  .product-related__grid {
    grid-template-columns: 1fr;
    max-width: 22rem;
  }
}

@media (max-width: 600px) {
  .product-newsletter form {
    flex-direction: column;
  }

  .product-newsletter .btn--join {
    width: 100%;
  }
}