.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: 0.3s;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--surface);
  border-radius: var(--radius);
  position: relative;
  width: 90%;
  max-width: 400px;
  padding: 32px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.preview-box {
  max-width: 800px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 0;
  overflow: hidden;
}

.preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 400px;
}

.preview-details {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.preview-details h3 {
  font-size: 24px;
  margin-bottom: 8px;
}

.preview-details .price {
  font-size: 20px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 16px;
}

.preview-details .desc {
  color: var(--ink-soft);
  margin-bottom: 24px;
}

.selector-group {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.size-select {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: var(--font);
}

.auth-mode-row {
  text-align: right;
  margin-bottom: 16px;
  margin-top: -8px;
}

.auth-mode-row a {
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}