/* resources Dialog Styles (clean rebuild) */
.resources-dialog {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9999;
  --sbw: 10px;
}

.resources-dialog .dialog-content {
  background: #fff;
  padding: 2rem;
  max-width: 800px;
  width: 95%;
  max-height: 90vh;
  border-radius: 8px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
  position: relative;
  animation: fadeIn 0.3s ease;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.resources-dialog .dialog-layout {
  display: grid;
  grid-template-columns: calc(50% - var(--sbw) / 2) calc(50% + var(--sbw) / 2);
  gap: 2rem;
  flex: 1;
  min-height: 0;
  align-items: stretch;
}

@media (max-width: 749px) {
  .resources-dialog .dialog-layout {
    display: block;
    scrollbar-gutter: stable;
    overflow-y: auto;
  }

  .resources-dialog .dialog-col-left {
    background: transparent;
  }
}

.resources-dialog .dialog-col {
  height: 100%;
  overflow-y: auto;
  padding: 0 0.25rem 0.5rem 0;
  position: relative;
  scrollbar-gutter: stable;
}
.resources-dialog .dialog-col-right {
  margin-top: 0.2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.resources-dialog .dialog-col-left {
  background: transparent;
}

.resources-dialog .dialog-col-left .dialog-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  padding: 0;
  color: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 5;
}

.resources-dialog .dialog-thumb-wrapper .a-image img,
.resources-dialog .dialog-thumb-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  margin-bottom: 1rem;
}
.resources-dialog .dialog-col-right iframe {
  width: 100%;
  flex: 1 1 auto;
  height: 100%; /* JS で再計算上書き予定 */
  border: none;
  display: block;
  /* 16:9維持したい場合は下記を利用 (wrapperで対応推奨) */
  /* object-fit: cover; */
}
.resources-dialog .dialog-caption {
  font-size: 1rem;
  color: #444;
  margin: 0 0 1rem;
}
.resources-dialog .dialog-body {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #333;
}
.resources-dialog .dialog-col::-webkit-scrollbar {
  width: var(--sbw);
}
.resources-dialog .dialog-col::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}
.resources-dialog .dialog-col::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 10px;
}
.resources-dialog .dialog-col::-webkit-scrollbar-thumb:hover {
  background: #999;
}
.resources-dialog .dialog-content button.dialog-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: #ccc;
  border: none;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-weight: 700;
  border-radius: 4px;
}
.resources-dialog .dialog-content button.dialog-close:hover {
  background: #999;
}
.resources-dialog .dialog-content h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  padding: 0 1.5rem 0 0;
  color: var(--color-primary);
}
.resources-dialog .dialog-media-error {
  padding: 1rem;
  background: #f8d7da;
  color: #842029;
  border-radius: 4px;
  font-size: 0.9rem;
}

/* Loading spinner overlay (dialog right column) */
.resources-dialog .dialog-col-right {
  position: relative; /* overlay positioning */
}
.resources-dialog .dialog-spinner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.8);
  z-index: 10;
}
.resources-dialog .dialog-spinner .spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(0,0,0,0.08);
  border-top-color: var(--color-primary, #0073aa);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}