.tool-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 28px;
}

.tool-header > div {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tool-header .lead {
  max-width: 60ch;
}

.tool-grid {
  display: grid;
  gap: var(--tool-card-gap);
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  margin-top: 1.25rem;
}

.tool-grid {
  gap: 32px;
}

.card {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 24px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.12);
}

.upload-card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
}

.upload-area {
  border: 2px dashed var(--border);
  border-radius: 18px;
  padding: 2rem;
  text-align: center;
  background: var(--surface-muted);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
  position: relative;
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.upload-area.is-dragover,
.upload-area:hover {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--accent-soft) 50%, var(--surface));
}

.upload-placeholder {
  display: grid;
  gap: 0.4rem;
}

.upload-area.has-files .upload-placeholder {
  display: none;
}

.upload-more {
  display: none;
  align-self: center;
  margin-top: 0.75rem;
}

.upload-area.has-files .upload-more {
  display: inline-flex;
}

.upload-area input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.upload-area.has-files input[type="file"] {
  pointer-events: none;
}

.upload-icon {
  width: 42px;
  height: 42px;
  margin: 0 auto;
  background: var(--accent-soft);
  border-radius: 12px;
  display: grid;
  place-items: center;
}

.upload-icon svg {
  width: 24px;
  height: 24px;
  fill: var(--primary);
}

.upload-title {
  font-weight: 700;
  margin: 0.6rem 0 0.3rem;
}

.upload-meta {
  margin-top: 0.8rem;
}

.upload-preview-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
  text-align: left;
  flex: 1 1 auto;
  overflow: auto;
  padding-right: 6px;
}

.preview-card {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 0.8rem;
  align-items: center;
  padding: 0.75rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.preview-thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface-muted);
  display: grid;
  place-items: center;
}

.preview-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  display: block;
}

.preview-info {
  display: grid;
  gap: 0.2rem;
  font-size: 0.9rem;
  color: var(--muted);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.preview-info strong {
  color: var(--text);
}

.metadata-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.metadata-select select {
  min-width: 220px;
}

.metadata-panel {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  background: var(--surface-muted);
  min-height: 220px;
}

.metadata-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.summary-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  background: var(--surface-muted);
  display: grid;
  gap: 6px;
}

.summary-label {
  font-size: 0.85rem;
  color: var(--muted);
}

.metadata-empty {
  color: var(--muted);
}

.metadata-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.metadata-table th,
.metadata-table td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.metadata-table th {
  color: var(--muted);
  font-weight: 600;
}

.meta-value {
  max-width: 100%;
  word-break: break-word;
  overflow-wrap: anywhere;
  line-height: 1.4;
}

.meta-value.is-clamped {
  display: -webkit-box;
  line-clamp: 1;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.meta-value.is-expanded {
  display: block;
  overflow: visible;
}

.meta-toggle {
  margin-top: 6px;
  background: none;
  border: 0;
  color: var(--primary);
  font-weight: 600;
  padding: 0;
  cursor: pointer;
  font-size: 0.85rem;
}

.meta-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 6px;
}

.action-row {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.action-row .btn {
  flex: 1;
}

.action-row #viewBtn {
  background: color-mix(in srgb, var(--accent-soft) 65%, var(--surface));
  color: var(--primary);
  border: 1px solid var(--primary);
}

.action-row #viewBtn:hover,
.action-row #viewBtn:focus-visible {
  background: color-mix(in srgb, var(--accent-soft) 80%, var(--surface));
}

.action-hint {
  margin-top: 10px;
}

.progress {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
  font-weight: 600;
  color: var(--muted);
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.how-it-works {
  margin-top: 2rem;
  background: var(--surface-muted);
  border-radius: 14px;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
}

.how-it-works summary {
  cursor: pointer;
  font-weight: 600;
}

.how-it-works ul {
  margin: 0.8rem 0 0 1.2rem;
  color: var(--muted);
}

/* Allow scrolling the preview list after files are uploaded */
@media (min-width: 1024px) {
  .upload-area {
    max-height: 520px;
  }

  .upload-preview-grid {
    max-height: 360px;
  }
}

/* Buttons sizing for touch */
.btn {
  min-height: 44px;
  padding: 12px 16px;
}

@media (max-width: 1024px) {
  .tool-grid {
    grid-template-columns: 1fr;
  }

  .tool-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 768px) {
  .card {
    padding: 16px;
  }

  .action-row {
    flex-direction: column;
  }

  .action-row .btn {
    width: 100%;
  }

  .metadata-head {
    flex-direction: column;
    align-items: stretch;
  }

  .metadata-select select {
    width: 100%;
  }

  .upload-more {
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .metadata-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .upload-area {
    padding: 1.5rem;
  }
}

h1, h2 {
  word-break: break-word;
}