/* ═══════════════════════════════════════════════════════════
   KHONG Page-Specific Styles
   ═══════════════════════════════════════════════════════════ */

/* ─── HOMEPAGE: Hero ───────────────────────────────────── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(26, 23, 20, 0.3) 0%,
    rgba(26, 23, 20, 0.5) 50%,
    rgba(26, 23, 20, 0.7) 100%
  );
}

.hero__content {
  position: relative;
  z-index: var(--z-base);
  text-align: center;
  color: var(--color-text-inverse);
  max-width: 720px;
  padding: 0 var(--space-8);
}

.hero__label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-bamboo-light);
  margin-bottom: var(--space-6);
  opacity: 0;
  animation: heroFadeUp 0.8s var(--ease-out) 0.3s forwards;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-7xl);
  font-weight: var(--weight-light);
  line-height: 1.05;
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-6);
  opacity: 0;
  animation: heroFadeUp 0.8s var(--ease-out) 0.5s forwards;
}

.hero__subtitle {
  font-size: var(--text-xl);
  font-weight: var(--weight-light);
  line-height: var(--leading-relaxed);
  color: rgba(250, 248, 244, 0.8);
  margin-bottom: var(--space-10);
  opacity: 0;
  animation: heroFadeUp 0.8s var(--ease-out) 0.7s forwards;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  opacity: 0;
  animation: heroFadeUp 0.8s var(--ease-out) 0.9s forwards;
}

.hero__scroll-hint {
  position: absolute;
  bottom: var(--space-10);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(250, 248, 244, 0.5);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(250,248,244,0.5), transparent);
}

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

@media (max-width: 768px) {
  .hero { min-height: 500px; }
  .hero__title { font-size: var(--text-4xl); }
  .hero__subtitle { font-size: var(--text-lg); }
  .hero__actions { flex-direction: column; }
}

/* ─── HOMEPAGE: Materials Strip ────────────────────────── */
.materials-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border-light);
}

.materials-strip__item {
  background: var(--color-bg-card);
  padding: var(--space-10) var(--space-6);
  text-align: center;
  transition: all var(--duration-base) var(--ease-out);
}

.materials-strip__item:hover {
  background: var(--color-bamboo-subtle);
}

.materials-strip__icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
}

.materials-strip__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.materials-strip__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

@media (max-width: 768px) {
  .materials-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .materials-strip {
    grid-template-columns: 1fr;
  }
}

/* ─── HOMEPAGE: Consultation Banner ────────────────────── */
.consultation-banner {
  background: linear-gradient(135deg, var(--color-text-primary) 0%, #2d2820 100%);
  color: var(--color-text-inverse);
  padding: var(--space-16) 0;
  position: relative;
  overflow: hidden;
}

.consultation-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(184, 148, 63, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.consultation-banner__inner {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
}

.consultation-banner__text {
  max-width: 560px;
}

.consultation-banner__label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-bamboo-light);
  margin-bottom: var(--space-4);
}

.consultation-banner__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-light);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
}

.consultation-banner__desc {
  color: rgba(250, 248, 244, 0.7);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

@media (max-width: 768px) {
  .consultation-banner__inner { flex-direction: column; text-align: center; }
  .consultation-banner__title { font-size: var(--text-2xl); }
}

/* ─── HOMEPAGE: Social Proof ───────────────────────────── */
.social-proof {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  padding: var(--space-10) 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.social-proof__item {
  text-align: center;
}

.social-proof__num {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-light);
  color: var(--color-bamboo);
}

.social-proof__label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

@media (max-width: 768px) {
  .social-proof {
    flex-wrap: wrap;
    gap: var(--space-6);
  }
  .social-proof__item {
    flex: 1 1 40%;
  }
}

/* ─── PRODUCT DETAIL ───────────────────────────────────── */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.product-detail__gallery {
  position: sticky;
  top: 100px;
}

.product-detail__main-image {
  width: 100%;
  aspect-ratio: 4/5;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-bg-alt);
}

.product-detail__main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slower) var(--ease-out);
}

.product-detail__main-image:hover img {
  transform: scale(1.03);
}

.product-detail__thumbs {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.product-detail__thumb {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out);
  opacity: 0.6;
}

.product-detail__thumb:hover,
.product-detail__thumb--active {
  border-color: var(--color-bamboo);
  opacity: 1;
}

.product-detail__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail__info {
  padding-top: var(--space-4);
}

.product-detail__category {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-bamboo);
  margin-bottom: var(--space-3);
}

.product-detail__name {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--weight-light);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-2);
}

.product-detail__tagline {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.product-detail__price-row {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.product-detail__description {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
}

.product-detail__section-title {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
}

.product-detail__features {
  margin-bottom: var(--space-6);
}

.product-detail__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.product-detail__feature::before {
  content: '✦';
  color: var(--color-bamboo);
  font-size: var(--text-xs);
}

.product-detail__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
}

.product-detail__meta-item {
  font-size: var(--text-sm);
}

.product-detail__meta-label {
  color: var(--color-text-tertiary);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.product-detail__meta-value {
  color: var(--color-text-primary);
  font-weight: var(--weight-medium);
  margin-top: 2px;
}

.product-detail__actions {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

/* Sticky Add to Cart Bar */
.sticky-atc {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(250, 248, 244, 0.95);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-8);
  z-index: var(--z-sticky);
  transform: translateY(100%);
  transition: transform var(--duration-base) var(--ease-out);
}

.sticky-atc--visible {
  transform: translateY(0);
}

.sticky-atc__inner {
  max-width: var(--container-xl);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.sticky-atc__info {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.sticky-atc__name {
  font-family: var(--font-display);
  font-weight: var(--weight-medium);
}

.sticky-atc__price {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  color: var(--color-bamboo);
}

@media (max-width: 768px) {
  .product-detail {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .product-detail__gallery {
    position: static;
  }
  .product-detail__name {
    font-size: var(--text-3xl);
  }
}

/* ─── CART PAGE ─────────────────────────────────────────── */
.cart-item {
  display: grid;
  grid-template-columns: 80px 1fr auto auto;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.cart-item__image {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-alt);
}

.cart-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item__name {
  font-family: var(--font-display);
  font-weight: var(--weight-medium);
  margin-bottom: 2px;
}

.cart-item__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.cart-item__remove {
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: var(--space-2);
  cursor: pointer;
}

.cart-item__remove:hover {
  text-decoration: underline;
}

.cart-item__price {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  text-align: right;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .cart-item {
    grid-template-columns: 72px 1fr;
    gap: var(--space-4);
  }
  .cart-item__price {
    grid-column: 1 / -1;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
}

/* ─── Order Summary ────────────────────────────────────── */
.order-summary {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.order-summary__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.order-summary__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  font-size: var(--text-base);
}

.order-summary__row--total {
  padding-top: var(--space-4);
  margin-top: var(--space-3);
  border-top: 1.5px solid var(--color-text-primary);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
}

.order-summary__free-shipping {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-success);
  margin-top: var(--space-2);
}

/* ─── CHECKOUT: Form Sections ──────────────────────────── */
.checkout-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-bottom: var(--space-6);
}

.checkout-section__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-medium);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.checkout-section__num {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bamboo);
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ─── Payment Options ──────────────────────────────────── */
.payment-option {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  margin-bottom: var(--space-3);
}

.payment-option:hover {
  border-color: var(--color-bamboo);
}

.payment-option--active {
  border-color: var(--color-bamboo);
  background: var(--color-bamboo-subtle);
}

.payment-option__radio {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-full);
  position: relative;
  flex-shrink: 0;
  transition: border-color var(--duration-fast) var(--ease-out);
}

.payment-option--active .payment-option__radio {
  border-color: var(--color-bamboo);
}

.payment-option--active .payment-option__radio::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: var(--color-bamboo);
  border-radius: var(--radius-full);
}

.payment-option__label {
  font-family: var(--font-display);
  font-weight: var(--weight-medium);
}

.payment-option__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.payment-option__icon {
  margin-left: auto;
  font-size: var(--text-2xl);
}

/* ─── ABOUT PAGE ───────────────────────────────────────── */
.about-hero {
  position: relative;
  height: 60vh;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.about-hero__bg {
  position: absolute;
  inset: 0;
}

.about-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(26, 23, 20, 0.3),
    rgba(26, 23, 20, 0.6)
  );
}

.about-hero__content {
  position: relative;
  z-index: var(--z-base);
  text-align: center;
  color: var(--color-text-inverse);
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.about-value {
  text-align: center;
  padding: var(--space-8);
}

.about-value__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-5);
}

.about-value__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-medium);
  margin-bottom: var(--space-3);
}

.about-value__desc {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

@media (max-width: 768px) {
  .about-values {
    grid-template-columns: 1fr;
  }
}