:root {
  --text: #111;
  --muted: #6b7280;
  --line: #e5e7eb;
  --panel: #fafafa;
  --thumb-bg: #f5f5f5;
  --accent: #ff5a1f;
  --accent-hover: #ff4a00;
  --btn-text: #fff;
}

.pd-wrap {
  display: grid;
  grid-template-columns: minmax(320px, 640px) 1fr;
  gap: 48px;
  align-items: start;
  color: var(--text);
}

.pd-gallery {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 16px;
}

#pd-thumbs {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 560px;
  overflow: auto;
  padding-right: 2px;
}

.pd-thumb {
  width: 72px;
  height: 96px;
  object-fit: cover;
  background: var(--thumb-bg);
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 120ms ease;
}
.pd-thumb:hover {
  border-color: var(--line);
}
.pd-thumb.active {
  border-color: var(--accent);
}

.pd-main {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: contain;
  background: var(--panel);
  border-radius: 12px;
  padding: 16px;
}

.pd-info {
  max-width: 560px;
}

.pd-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 6px;
}

.pd-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
}
.pd-brand img {
  width: 20px;
  height: 20px;
  object-fit: cover;
  border-radius: 50%;
  display: inline-block;
}

.pd-price {
  font-size: 24px;
  font-weight: 700;
  margin: 6px 0 16px;
}

.swatches {
  display: flex;
  gap: 10px;
  margin: 6px 0 18px;
}

.swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid #ddd;
  background: #eee;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0;
  transition: outline-color 100ms ease, border-color 100ms ease,
    background 100ms ease;
}
.swatch:hover {
  border-color: var(--line);
}
.swatch.active {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: var(--accent);
}
.swatch:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.size-row {
  display: grid;
  gap: 6px;
  margin-bottom: 18px;
}
.size-row label {
  font-size: 14px;
  color: var(--muted);
}
#size-select {
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}

.qty-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: max-content;
  align-items: center;
  gap: 12px;
  margin: 8px 0 22px;
}
.qty-row label {
  font-size: 14px;
  color: var(--muted);
}
#qty-input {
  width: 72px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 10px;
}

.pd-actions {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.pd-actions .button {
  height: 48px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: var(--btn-text);
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms ease, opacity 120ms ease;
}
.pd-actions .button:hover {
  background: var(--accent-hover);
}
.pd-actions .button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.toast {
  position: relative;
  top: 0;
  left: 0;
  font-size: 13px;
  color: #0a7a2a;
  opacity: 0;
  transition: opacity 150ms ease;
}
.toast.show {
  opacity: 1;
}

.pd-desc {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: #444;
  line-height: 1.65;
  font-size: 15px;
}