/* ═══════════════════════════════════════════════════════════════════
   KAKOARA PRODUCT OVERLAY — Standalone Detail Modal
   Injected on-demand when a product card is clicked
   ═══════════════════════════════════════════════════════════════════ */

:root {
  --kpo-overlay-bg: rgba(46,103,110,0.35);
  --kpo-modal-bg: #FAF7F2;
  --kpo-brown: #3E2723;
  --kpo-brown-400: #5D4037;
  --kpo-gold: #4E95BC;
  --kpo-terracotta: #3d7a9e;
  --kpo-border: #E8DFD0;
  --kpo-text-muted: #8B6F47;
  --kpo-text-faint: #A89880;
  --kpo-radius: 20px;
  --kpo-radius-sm: 12px;
  --kpo-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── Overlay ─── */
.kpo-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: var(--kpo-overlay-bg);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--kpo-ease-out), visibility 0.35s;
}

.kpo-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

/* ─── Modal ─── */
.kpo-modal {
  position: relative;
  width: 100%;
  max-width: 960px;
  max-height: 88vh;
  background: var(--kpo-modal-bg);
  border-radius: var(--kpo-radius);
  box-shadow: 0 32px 64px rgba(0,0,0,0.2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: scale(0.92) translateY(20px);
  transition: transform 0.4s var(--kpo-ease-out);
}

.kpo-overlay.is-open .kpo-modal {
  transform: scale(1) translateY(0);
}

/* ─── Close Button ─── */
.kpo-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--kpo-brown);
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  transition: all 0.25s var(--kpo-ease-out);
}

.kpo-close:hover {
  background: #fff;
  transform: scale(1.1);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

/* ─── Scrollable Body ─── */
.kpo-body {
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 0;
}

/* ─── Grid Layout ─── */
.kpo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

@media (min-width: 768px) {
  .kpo-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }
}

/* ─── Image Side ─── */
.kpo-image-side {
  position: relative;
  background: linear-gradient(180deg, #F5F0E8, #EDE8DD);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.kpo-image-side img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── Quik-View Hover Zoom ─── */
.kpo-image-side--zoom {
  cursor: none;
}
.kpo-image-side--zoom img {
  transform-origin: var(--kpo-zoom-x, 50%) var(--kpo-zoom-y, 50%);
  transform: scale(var(--kpo-zoom-level, 2.5));
}

.kpo-image-side .kpo-zoom-lens {
  display: none;
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.35);
  pointer-events: none;
  z-index: 5;
  transform: translate(-50%, -50%);
}
.kpo-image-side--zoom .kpo-zoom-lens {
  display: block;
}

.kpo-image-side .kpo-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  padding: 6px 14px;
  border-radius: 100px;
  background: linear-gradient(135deg, var(--kpo-gold, #c8943b), #d4a853);
  color: #fff;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 4px 12px rgba(51, 201, 186, 0.25);
}

/* ─── Info Side ─── */
.kpo-info-side {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.kpo-category {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--kpo-gold, #c8943b);
}

.kpo-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 700;
  color: var(--kpo-brown);
  line-height: 1.15;
  margin: 0;
}

.kpo-price-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.kpo-price-current {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--kpo-gold, #c8943b);
}

.kpo-price-original {
  font-size: 1rem;
  color: var(--kpo-text-faint);
  text-decoration: line-through;
}

.kpo-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--kpo-text-muted);
}

.kpo-rating .stars {
  color: #C9A227;
  letter-spacing: 1px;
}

.kpo-description {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--kpo-text-muted);
  margin: 0;
}

/* ─── Size Selector ─── */
.kpo-size-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kpo-size-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--kpo-brown);
}

.kpo-size-label span {
  color: var(--kpo-text-muted);
  font-weight: 400;
}

.kpo-size-options {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.kpo-size-btn {
  padding: 8px 16px;
  border-radius: var(--kpo-radius-sm);
  border: 1.5px solid var(--kpo-border);
  background: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--kpo-brown);
  cursor: pointer;
  transition: all 0.25s var(--kpo-ease-out);
  font-family: inherit;
}

.kpo-size-btn:hover {
  border-color: var(--kpo-gold, #c8943b);
}

.kpo-size-btn.is-active {
  background: var(--kpo-gold, #c8943b);
  color: #fff;
  border-color: var(--kpo-gold, #c8943b);
  box-shadow: 0 4px 12px rgba(78, 149, 188, 0.2);
}

/* ─── Quantity ─── */
.kpo-qty-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.kpo-qty-selector {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--kpo-border);
  border-radius: var(--kpo-radius-sm);
  overflow: hidden;
}

.kpo-qty-btn {
  padding: 10px 14px;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--kpo-brown);
  font-size: 1.1rem;
  transition: background 0.2s;
  font-family: inherit;
}

.kpo-qty-btn:hover {
  background: rgba(0,0,0,0.03);
}

.kpo-qty-value {
  width: 40px;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
}

/* ─── Action Buttons ─── */
.kpo-actions {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.kpo-btn {
  flex: 1;
  padding: 14px 24px;
  border-radius: 100px;
  border: none;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s var(--kpo-ease-out);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

.kpo-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.kpo-btn:hover::after {
  transform: translateX(100%);
}

.kpo-btn--primary {
  background: var(--kpo-brown);
  color: var(--kpo-modal-bg);
  box-shadow: 0 4px 16px rgba(62,39,35,0.2);
}

.kpo-btn--primary:hover {
  background: var(--kpo-brown-400);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(62,39,35,0.25);
}

.kpo-btn--primary:active {
  transform: translateY(0) scale(0.98);
}

.kpo-btn--ghost {
  background: transparent;
  color: var(--kpo-brown);
  border: 1.5px solid var(--kpo-border);
}

.kpo-btn--ghost:hover {
  border-color: var(--kpo-brown);
  background: rgba(62,39,35,0.03);
  transform: translateY(-2px);
}

.kpo-btn--gold {
  background: linear-gradient(135deg, var(--kpo-gold, #c8943b), #d4a853);
  color: #fff;
  box-shadow: 0 4px 16px rgba(51, 201, 186, 0.3);
}

.kpo-btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(51, 201, 186, 0.4);
}

/* ─── Details Tabs ─── */
.kpo-tabs {
  display: flex;
  gap: 4px;
  background: #F5F0E8;
  border-radius: var(--kpo-radius-sm);
  padding: 4px;
}

.kpo-tab {
  flex: 1;
  padding: 8px 12px;
  border-radius: 8px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--kpo-text-muted);
  transition: all 0.25s;
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kpo-tab:hover {
  color: var(--kpo-brown);
}

.kpo-tab.is-active {
  background: #fff;
  color: var(--kpo-gold, #c8943b);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.kpo-tab-content {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--kpo-text-muted);
}

.kpo-tab-content ul {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
}

.kpo-tab-content li {
  padding: 3px 0;
  display: flex;
  align-items: flex-start;
  gap: 6px;
}

.kpo-tab-content li::before {
  content: '✓';
  color: var(--kpo-gold, #c8943b);
  font-weight: 700;
  flex-shrink: 0;
}

/* ─── Shipping Strip ─── */
.kpo-shipping {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.kpo-shipping-item {
  text-align: center;
  padding: 10px 6px;
  background: rgba(255,255,255,0.6);
  border: 1px solid var(--kpo-border);
  border-radius: var(--kpo-radius-sm);
  font-size: 0.68rem;
  color: var(--kpo-text-muted);
  line-height: 1.4;
}

.kpo-shipping-item strong {
  display: block;
  color: var(--kpo-brown);
  font-size: 0.72rem;
  margin-bottom: 2px;
}

/* ─── Loading / Empty States ─── */
.kpo-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  color: var(--kpo-text-faint);
  font-size: 0.9rem;
  gap: 12px;
}

.kpo-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid #EDE8DD;
  border-top-color: var(--kpo-gold, #c8943b);
  border-radius: 50%;
  animation: kpoSpin 0.7s linear infinite;
}

@keyframes kpoSpin {
  to { transform: rotate(360deg); }
}

/* ─── Toast Notification ─── */
.kpo-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10001;
  background: var(--kpo-brown);
  color: var(--kpo-modal-bg);
  padding: 12px 24px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  animation: kpoToastIn 0.3s var(--kpo-ease-out);
  pointer-events: none;
}

@keyframes kpoToastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(16px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ─── Responsive ─── */
@media (max-width: 767px) {
  .kpo-overlay {
    padding: 0;
    align-items: flex-end;
  }
  .kpo-modal {
    max-height: 92vh;
    border-radius: var(--kpo-radius) var(--kpo-radius) 0 0;
    transform: translateY(100%);
    transition: transform 0.4s var(--kpo-ease-out);
  }
  .kpo-overlay.is-open .kpo-modal {
    transform: translateY(0);
  }
  .kpo-image-side {
    min-height: 240px;
    max-height: 40vh;
  }
  .kpo-info-side {
    padding: 20px 16px;
  }
  .kpo-close {
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    font-size: 1.2rem;
  }
  .kpo-actions {
    flex-direction: column;
  }
  .kpo-shipping {
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
  }
}

@media (max-width: 480px) {
  .kpo-image-side {
    min-height: 180px;
    max-height: 30vh;
  }
  .kpo-info-side {
    padding: 14px 12px;
    gap: 10px;
  }
  .kpo-title {
    font-size: 0.95rem;
  }
  .kpo-price-current {
    font-size: 1.05rem;
  }
  .kpo-size-btn {
    padding: 5px 10px;
    font-size: 0.65rem;
  }
  .kpo-btn {
    padding: 10px 14px;
    font-size: 0.68rem;
  }
  .kpo-description {
    font-size: 0.75rem;
    line-height: 1.5;
  }
  .kpo-category {
    font-size: 0.6rem;
  }
  .kpo-thumb {
    width: 36px;
    height: 44px;
  }
}

/* ─── Animations ─── */
@keyframes kpo-overlay-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes kpo-overlay-out {
  from { opacity: 1; }
  to { opacity: 0; }
}
@keyframes kpo-modal-in {
  from { opacity: 0; transform: scale(0.92) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes kpo-modal-out {
  from { opacity: 1; transform: scale(1) translateY(0); }
  to { opacity: 0; transform: scale(0.92) translateY(20px); }
}
.kpo-overlay {
  animation: kpo-overlay-in 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.kpo-modal {
  animation: kpo-modal-in 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.kpo-overlay.is-closing {
  animation: kpo-overlay-out 0.2s ease forwards;
}
.kpo-overlay.is-closing .kpo-modal {
  animation: kpo-modal-out 0.2s ease forwards;
}

@media (prefers-reduced-motion: reduce) {
  .kpo-overlay,
  .kpo-modal,
  .kpo-btn::after,
  .kpo-toast {
    transition: none;
    animation: none;
  }
}