/* Story 4.1 — Data Source Selection Modal
   ========================================
   Card-based modal for selecting a data source in the Explore section.
   Follows Kwalee design tokens from theme.css.
*/

/* ── Modal backdrop ─────────────────────────────────────────────── */
.ds-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--overlay-bg);
  backdrop-filter: blur(4px);
  transition:
    opacity 0.2s ease,
    visibility 0.2s ease;
}

.ds-modal-backdrop.ds-modal-visible {
  opacity: 1;
  visibility: visible;
}

.ds-modal-backdrop.ds-modal-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* ── Modal container ────────────────────────────────────────────── */
.ds-modal-container {
  background: var(--bg-elevated);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  width: 90vw;
  max-width: 512px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .ds-modal-container {
  background: var(--bg-secondary);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-lg);
}

/* ── Header ─────────────────────────────────────────────────────── */
.ds-modal-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .ds-modal-header {
  border-bottom-color: var(--border-subtle);
}

.ds-modal-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ds-modal-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.ds-modal-close-btn {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.15s;
}

.ds-modal-close-btn:hover {
  background: var(--bg-hover);
}

.ds-modal-subtitle {
  margin: 4px 0 12px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.ds-search-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.875rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}

.ds-search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-muted);
}

/* ── Card grid ──────────────────────────────────────────────────── */
.ds-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
  padding: 20px 24px 24px;
  overflow-y: auto;
}

/* ── Source card ─────────────────────────────────────────────────── */
.ds-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
  text-align: left;
  transition:
    border-color 0.15s,
    box-shadow 0.15s,
    transform 0.1s;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: inherit;
}

.ds-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px var(--accent-muted);
  transform: translateY(-1px);
}

.ds-card:active {
  transform: translateY(0);
  box-shadow: none;
}

.ds-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ds-card-icon {
  font-size: 1.5rem;
}

.ds-card-row-count {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-elevated);
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
}

.ds-card-name {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.ds-card-desc {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ds-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.ds-card-tag {
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--accent);
  background: var(--accent-muted);
  padding: 2px 6px;
  border-radius: 4px;
}

.ds-card-connection-badge {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 2px 8px;
  border-radius: 10px;
  margin-top: 6px;
}

/* ── State panels (loading / error / empty) ─────────────────────── */
.ds-modal-state {
  padding: 40px 24px;
  text-align: center;
}

.ds-state-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.ds-state-message {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0 0 16px;
}

.ds-retry-btn {
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}

.ds-retry-btn:hover {
  background: var(--accent-hover);
}

/* ── Loading skeletons ──────────────────────────────────────────── */
.ds-modal-loading {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
  padding: 20px 24px 24px;
}

.ds-skeleton-card {
  height: 140px;
  background: linear-gradient(
    90deg,
    var(--bg-surface) 25%,
    var(--bg-hover) 50%,
    var(--bg-surface) 75%
  );
  background-size: 200% 100%;
  animation: ds-shimmer 1.5s infinite;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
}

@keyframes ds-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ── Toolbar "Change Source" button (for re-opening modal) ──────── */
.ds-change-source-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition:
    border-color 0.15s,
    background 0.15s;
}

.ds-change-source-btn:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}

/* ── Selected source indicator ──────────────────────────────────── */
.ds-selected-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.ds-selected-icon {
  font-size: 1.5rem;
}

.ds-selected-info {
  flex: 1;
}

.ds-selected-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.ds-selected-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}