/* === Smart Selector Hero === */
    .smart-selector {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      padding: 32px 24px;
      margin-bottom: 8px;
    }
    .selector-column {
      display: flex;
      flex-direction: column;
      gap: 8px;
      flex: 1;
      max-width: 280px;
    }
    .selector-label {
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--color-text-muted);
      text-align: center;
    }
    .format-select {
      padding: 14px 40px 14px 18px;
      border: 2px solid var(--color-border);
      border-radius: var(--radius-md);
      font-family: var(--font-body);
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--color-text);
      background: var(--color-surface);
      cursor: pointer;
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 14px center;
      transition: all var(--transition-fast);
      text-align: center;
      text-align-last: center;
      width: 100%;
    }
    .format-select:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 4px var(--color-primary-light);
      outline: none;
    }
    .format-select:hover {
      border-color: var(--color-primary-subtle);
    }
    .selector-arrow {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: var(--color-primary);
      color: white;
      flex-shrink: 0;
      margin-top: 20px;
      box-shadow: 0 4px 14px rgba(59,91,219,0.3);
    }
    .selector-arrow svg {
      width: 24px;
      height: 24px;
    }
    .format-badge {
      text-align: center;
      font-size: 0.72rem;
      font-weight: 500;
      color: var(--color-text-muted);
      padding: 4px 10px;
      background: var(--color-bg);
      border-radius: 100px;
      display: inline-block;
      margin: 0 auto;
      transition: all var(--transition-fast);
    }
    .format-badge.badge-lossless { background: #ecfdf5; color: #059669; }
    .format-badge.badge-lossy { background: #fff7ed; color: #ea580c; }
    .format-badge.badge-modern { background: #edf2ff; color: #3b5bdb; }
    .format-badge.badge-auto { background: var(--color-bg); color: var(--color-text-muted); }

    .compat-note {
      text-align: center;
      font-size: 0.8rem;
      color: var(--color-warning);
      background: var(--color-warning-bg);
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      margin: 0 24px 16px;
      display: none;
    }
    .compat-note.visible { display: block; }

    .transparency-note {
      text-align: center;
      font-size: 0.8rem;
      color: var(--color-text-muted);
      background: var(--color-bg);
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      margin: 0 24px 16px;
      display: none;
    }
    .transparency-note.visible { display: block; }

    /* === File Cards === */
    .file-card {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 12px 16px;
      background: var(--color-bg);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-sm);
      transition: all var(--transition-fast);
    }
    .file-card .thumb {
      width: 48px;
      height: 48px;
      border-radius: 6px;
      object-fit: cover;
      background: repeating-conic-gradient(#f1f5f9 0% 25%, transparent 0% 50%) 50% / 10px 10px;
      flex-shrink: 0;
    }
    .file-card .file-info {
      flex: 1;
      min-width: 0;
    }
    .file-card .file-name {
      font-weight: 500;
      font-size: 0.85rem;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .file-card .file-meta {
      font-family: var(--font-mono);
      font-size: 0.75rem;
      color: var(--color-text-muted);
      margin-top: 2px;
    }
    .file-card .file-format-tag {
      font-family: var(--font-mono);
      font-size: 0.65rem;
      font-weight: 600;
      text-transform: uppercase;
      padding: 2px 8px;
      border-radius: 4px;
      background: var(--color-primary-light);
      color: var(--color-primary);
      flex-shrink: 0;
    }
    .file-card .remove-btn {
      background: none;
      border: none;
      cursor: pointer;
      color: var(--color-text-muted);
      font-size: 1.2rem;
      padding: 4px 8px;
      border-radius: 4px;
      transition: all var(--transition-fast);
      flex-shrink: 0;
    }
    .file-card .remove-btn:hover {
      background: var(--color-error-bg);
      color: var(--color-error);
    }
    .file-cards-list {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-top: 16px;
    }

    /* === Batch Results === */
    .batch-results {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-top: 16px;
    }
    .batch-result-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 16px;
      background: var(--color-bg);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-sm);
    }
    .batch-result-item .thumb {
      width: 40px;
      height: 40px;
      border-radius: 6px;
      object-fit: cover;
      flex-shrink: 0;
    }
    .batch-result-item .name {
      flex: 1;
      font-weight: 500;
      font-size: 0.85rem;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .batch-result-item .meta {
      font-family: var(--font-mono);
      font-size: 0.75rem;
      color: var(--color-text-muted);
    }
    .batch-result-item .savings {
      font-family: var(--font-mono);
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--color-success);
    }
    .batch-result-item .savings.negative {
      color: var(--color-error);
    }
    .batch-result-item .dl-btn {
      padding: 6px 14px;
      background: var(--color-primary);
      color: white;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      font-size: 0.8rem;
      font-weight: 600;
      font-family: var(--font-body);
      transition: background var(--transition-fast);
      flex-shrink: 0;
    }
    .batch-result-item .dl-btn:hover {
      background: var(--color-primary-hover);
    }

    /* === Progress === */
    .progress-bar-wrapper {
      width: 100%;
      height: 6px;
      background: var(--color-border-light);
      border-radius: 3px;
      margin: 16px 0;
      overflow: hidden;
      display: none;
    }
    .progress-bar-wrapper.visible { display: block; }
    .progress-bar-fill {
      height: 100%;
      background: var(--color-primary);
      border-radius: 3px;
      width: 0%;
      transition: width 0.3s ease;
    }
    .progress-text {
      text-align: center;
      font-size: 0.8rem;
      color: var(--color-text-muted);
      margin-bottom: 8px;
      display: none;
    }
    .progress-text.visible { display: block; }

    /* === Responsive === */
    @media (max-width: 640px) {
      .smart-selector {
        flex-direction: column;
        gap: 12px;
        padding: 24px 16px;
      }
      .selector-column {
        max-width: 100%;
        width: 100%;
      }
      .selector-arrow {
        margin-top: 0;
        transform: rotate(90deg);
      }
      .format-select {
        font-size: 1rem;
        padding: 12px 40px 12px 16px;
      }
      .batch-result-item {
        flex-wrap: wrap;
        gap: 8px;
      }
      .batch-result-item .meta {
        width: 100%;
        order: 5;
      }
    }