/* ── PRODUCT NAV ── */
.product-nav {
  position: sticky;
  top: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.product-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 8%;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  font-family: var(--serif);
  font-size: 1.4rem;
  color: var(--fg);
  text-decoration: none;
}

.nav-back {
  font-size: 0.875rem;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-back:hover {
  color: var(--accent);
}

/* ── PRODUCT PAGE ── */
.product-page {
  padding: 4rem 8% 6rem;
}

.product-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  max-width: 1200px;
  margin: 0 auto;
  align-items: start;
}

/* ── IMAGE ── */
.product-image-wrap {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(28,25,23,0.1);
}

.product-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}

.product-badge {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
}

/* ── DETAILS ── */
.product-details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-top: 0.5rem;
}

.product-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.product-title {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--fg);
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.price-amount {
  font-size: 2rem;
  font-weight: 600;
  color: var(--fg);
}

.price-note {
  font-size: 0.875rem;
  color: var(--fg-muted);
}

/* ── BUY BUTTON ── */
.buy-button {
  display: block;
  background: var(--accent);
  color: #fff;
  font-family: var(--sans);
  font-size: 1.0625rem;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  padding: 1.1rem 2rem;
  border-radius: 10px;
  transition: background 0.2s, transform 0.15s;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(212,98,43,0.35);
}

.buy-button:hover {
  background: #b8531f;
  transform: translateY(-2px);
}

.buy-button:active {
  transform: translateY(0);
}

/* ── GUARANTEE ── */
.guarantee {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.guarantee-icon {
  color: var(--accent);
  font-weight: 600;
}

/* ── PRODUCT DESCRIPTION ── */
.product-description p {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ── WHAT'S INCLUDED ── */
.whats-included {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.included-heading {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 1.25rem;
}

.included-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.included-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.included-icon {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.included-name {
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: 0.2rem;
}

.included-desc {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ── FORMATS ── */
.format-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.format-badge {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.3rem 0.75rem;
  color: var(--fg);
}

.format-note {
  font-size: 0.8125rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ── FOOTER ── */
.product-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 8%;
  text-align: center;
}

.product-footer p {
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.product-footer .accent {
  color: var(--accent);
}

/* ── CONFIRMATION ── */
.confirmed-wrap {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  padding: 4rem 0;
}

.confirmed-icon {
  width: 72px;
  height: 72px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 600;
}

.confirmed-title {
  font-family: var(--serif);
  font-size: 2.25rem;
  font-weight: 400;
  color: var(--fg);
}

.confirmed-sub {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 42ch;
}

.confirmed-sub .accent {
  color: var(--accent);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .product-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .product-image-wrap {
    max-width: 500px;
    margin: 0 auto;
  }
}

@media (max-width: 600px) {
  .product-page {
    padding: 2.5rem 5% 4rem;
  }

  .product-nav-inner {
    padding: 0.875rem 5%;
  }
}