/* ===========================
   Single Product Detail Page
   =========================== */

/* ---- Hero ---- */
.pd-hero {
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--color-border, #e5e7eb);
}

.pd-hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.pd-hero__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: var(--color-bg-dark);
  color: #fff;
  padding: 0.3em 0.875em;
  border-radius: 0.375rem;
  margin-bottom: 1.25rem;
}

.pd-hero__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 0.875rem;
}

.pd-hero__tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.pd-hero__lead {
  font-size: 0.9375rem;
  color: var(--color-text-muted, #6b7280);
  line-height: 1.85;
  margin-bottom: 2rem;
}

.pd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.pd-hero__img {
  border-radius: var(--radius-2xl, 1.5rem);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.pd-hero__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---- Buttons ---- */
.pd-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.875rem 1.625rem;
  border-radius: 0.75rem;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.15s;
}

.pd-btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.pd-btn--primary {
  background: var(--color-bg-dark);
  color: #fff;
}

.pd-btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border, #e5e7eb);
}

.pd-btn--white {
  background: #fff;
  color: var(--color-bg-dark);
}

/* ---- Section head ---- */
.pd-section-head {
  margin-bottom: 2.5rem;
}

.pd-section-head__en {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-text-muted, #9ca3af);
  margin-bottom: 0.5rem;
}

.pd-section-head__title {
  font-size: clamp(1.375rem, 3vw, 1.875rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* ---- Stats ---- */
.pd-stats {
  padding: 3rem 0;
  background: var(--color-bg, #fafafa);
  border-bottom: 1px solid var(--color-border, #e5e7eb);
}

.pd-stats__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 2rem;
  text-align: center;
}

.pd-stat__num {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.375rem;
}

.pd-stat__label {
  font-size: 0.8125rem;
  color: var(--color-text-muted, #6b7280);
}

/* ---- Features ---- */
.pd-features {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.pd-features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.pd-feature-card {
  background: var(--color-bg, #fafafa);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: var(--radius-xl, 1rem);
  padding: 1.5rem;
  transition: box-shadow 0.2s, transform 0.2s;
}

.pd-feature-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.pd-feature-card__icon {
  width: 36px;
  height: 36px;
  background: var(--color-bg-dark);
  color: #fff;
  border-radius: 0.625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.875rem;
}

.pd-feature-card h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 0.375rem;
}

.pd-feature-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted, #6b7280);
  line-height: 1.7;
}

/* ---- Pricing ---- */
.pd-pricing {
  padding: clamp(4rem, 8vw, 7rem) 0;
  background: var(--color-bg, #fafafa);
}

.pd-pricing__grid {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.pd-pricing__grid--1 { grid-template-columns: minmax(280px, 420px); justify-content: center; }
.pd-pricing__grid--2 { grid-template-columns: repeat(2, 1fr); }
.pd-pricing__grid--3 { grid-template-columns: repeat(3, 1fr); }

.pd-plan {
  background: var(--color-white);
  border: 1.5px solid var(--color-border, #e5e7eb);
  border-radius: var(--radius-2xl, 1.5rem);
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: box-shadow 0.2s;
}

.pd-plan--featured {
  border-color: var(--color-bg-dark);
  box-shadow: 0 0 0 2px var(--color-bg-dark), 0 16px 48px rgba(0,0,0,0.1);
}

.pd-plan__badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg-dark);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.3em 1em;
  border-radius: 2rem;
  white-space: nowrap;
}

.pd-plan__name {
  font-size: 1rem;
  font-weight: 700;
}

.pd-plan__price {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
}

.pd-plan__price span {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted, #6b7280);
}

.pd-plan__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  flex: 1;
}

.pd-plan__list li {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
}

.pd-plan__list li::before {
  content: '✓';
  color: var(--color-bg-dark);
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.pd-plan__cta {
  display: block;
  text-align: center;
  background: var(--color-bg-dark);
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  padding: 0.875rem 1.25rem;
  border-radius: 0.75rem;
  text-decoration: none;
  transition: opacity 0.2s;
  margin-top: auto;
}

.pd-plan--featured .pd-plan__cta {
  background: var(--color-bg-dark);
}

.pd-plan__cta:hover { opacity: 0.82; }

.pd-pricing__note {
  font-size: 0.8125rem;
  color: var(--color-text-muted, #9ca3af);
  text-align: center;
}

/* ---- CTA ---- */
.pd-cta {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.pd-cta__inner {
  background: var(--color-bg-dark);
  color: #fff;
  border-radius: var(--radius-2xl, 1.5rem);
  padding: clamp(2.5rem, 5vw, 4.5rem);
  text-align: center;
}

.pd-cta__inner h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.35;
  margin-bottom: 1rem;
}

.pd-cta__inner p {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 2rem;
}

.pd-cta__actions {
  display: flex;
  justify-content: center;
}

/* ---- Related ---- */
.pd-related {
  padding: clamp(4rem, 8vw, 7rem) 0;
  background: var(--color-bg, #fafafa);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .pd-hero .container {
    grid-template-columns: 1fr;
  }

  .pd-features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pd-pricing__grid--3 {
    grid-template-columns: 1fr;
  }

  .pd-pricing__grid--2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .pd-features__grid {
    grid-template-columns: 1fr;
  }
}