@layer components {
  .upload-zone {
    border: 2px dashed var(--ink-200);
    border-radius: var(--r-xl);
    padding: var(--s12) var(--s10);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-md);
    background: var(--ink-50);
    position: relative;
  }
  .upload-zone:hover, .upload-zone.drag-over {
    border-color: var(--forest-500);
    background: var(--forest-50);
  }
  .upload-zone.drag-over { border-style: solid; }
  .upload-zone-icon {
    width: 48px; height: 48px;
    border-radius: var(--r-lg);
    background: #fff;
    border: 1px solid var(--ink-200);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--s4);
    box-shadow: var(--shadow-sm);
  }
  .upload-zone-icon svg { width: 22px; height: 22px; color: var(--forest-700); }
  .upload-zone-title { font-size: 15px; font-weight: 600; color: var(--ink-800); margin-bottom: var(--s2); }
  .upload-zone-subtitle { font-size: 13px; color: var(--ink-400); }
  .upload-zone-rules {
    display: flex;
    justify-content: center;
    gap: var(--s5);
    margin-top: var(--s5);
    flex-wrap: wrap;
  }
  .upload-zone-rule {
    font-size: 11px;
    color: var(--ink-400);
    display: flex;
    align-items: center;
    gap: 5px;
    font-family: var(--font-mono);
  }

  /* Full-screen drag state */
  .upload-zone-full {
    border-radius: var(--r-xl);
    background: rgba(42,82,64,.04);
    border: 2px solid var(--forest-200, var(--forest-300));
    padding: var(--s10);
    text-align: center;
    transition: all var(--transition-md);
  }
  .upload-zone-full:hover, .upload-zone-full.drag-over {
    background: var(--forest-50);
    border-color: var(--forest-500);
  }
  .upload-zone-full .drop-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    color: var(--forest-700);
    line-height: 1.1;
  }
  .upload-zone-full .drop-sub {
    font-size: 14px;
    color: var(--ink-400);
    margin-top: var(--s2);
  }
}