:root {
    --mp-accent: #10b981;
    --mp-accent-dark: #0d9668;
    --mp-navy: #1e2a4a;
    --mp-border: #d1d5db;
  }
  .mp-wrap { max-width: 780px; margin: 0 auto; }

  .mp-sub { color: var(--mp-navy); font-weight: 600; font-size: 15px; margin-bottom: 22px; text-align:center; }

  .mp-actionbar { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
  .mp-btn {
    background: var(--mp-accent); color: #fff; border: none; padding: 11px 20px; border-radius: 7px;
    font-size: 13.5px; font-weight: 600; cursor: pointer; white-space: nowrap;
  }
  .mp-btn:hover { background: var(--mp-accent-dark); }
  .mp-btn:disabled { background: #9ca3af; cursor: not-allowed; }
  .mp-btn-outline { background: #fff; color: var(--mp-navy); border: 1px solid var(--mp-border); }
  .mp-btn-outline:hover { border-color: var(--mp-navy); }

  #mpFileInput { display: none; }

  .mp-drop {
    border: 2px dashed var(--mp-accent); border-radius: 12px; padding: 46px 20px; text-align: center;
    cursor: pointer; transition: border-color .15s, background .15s; background: #f0fdf9;
  }
  .mp-drop:hover, .mp-drop.mp-dragover { border-color: var(--mp-accent-dark); background: #e3fbf3; }
  .mp-drop svg { width: 42px; height: 42px; color: var(--mp-accent); margin-bottom: 10px; }
  .mp-drop-text { font-size: 15px; font-weight: 700; color: var(--mp-navy); }
  .mp-drop-sub { font-size: 13px; color: #4b5563; margin-top: 5px; }

  .mp-hint {
    font-size: 12.5px; color: #6b7280; text-align: center; margin: 14px 0;
  }

  .mp-list { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
  .mp-item {
    background: #fff; border: 1px solid var(--mp-border); border-radius: 10px; padding: 12px 14px;
    display: flex; align-items: center; gap: 12px;
  }
  .mp-item-order {
    flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; background: var(--mp-navy); color: #fff;
    font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center;
  }
  .mp-item-icon {
    flex-shrink: 0; width: 38px; height: 38px; border-radius: 8px; background: #fef2f2; color: #dc2626;
    display: flex; align-items: center; justify-content: center;
  }
  .mp-item-icon svg { width: 20px; height: 20px; }
  .mp-item-info { flex: 1; min-width: 0; }
  .mp-item-name {
    font-size: 13.5px; font-weight: 600; color: var(--mp-navy);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  }
  .mp-item-meta { font-size: 12px; color: #6b7280; margin-top: 2px; }
  .mp-item-actions { display: flex; gap: 4px; flex-shrink: 0; }
  .mp-icon-btn {
    width: 30px; height: 30px; border-radius: 7px; background: #f9fafb; border: 1px solid var(--mp-border);
    display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--mp-navy); padding: 0;
  }
  .mp-icon-btn:hover { border-color: var(--mp-accent); color: var(--mp-accent-dark); }
  .mp-icon-btn:disabled { opacity: 0.35; cursor: not-allowed; }
  .mp-icon-btn svg { width: 14px; height: 14px; }

  .mp-result {
    display: none; margin-top: 20px; background: #fff; border: 1px solid var(--mp-border); border-radius: 10px;
    padding: 18px 20px; text-align: center;
  }
  .mp-result.mp-show { display: block; }
  .mp-result-title { font-size: 14px; font-weight: 700; color: var(--mp-navy); margin-bottom: 4px; }
  .mp-result-meta { font-size: 12.5px; color: #6b7280; margin-bottom: 14px; }
  .mp-result-meta b { color: var(--mp-accent-dark); }
  .mp-result-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

  /* ==== PREVIEW MODAL ==== */
  .mp-preview-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 99999;
    align-items: center;
    justify-content: center;
    padding: 24px;
  }
  .mp-preview-overlay.mp-open { display: flex; }
  .mp-preview-modal {
    background: #fff;
    width: 100%;
    max-width: 800px;
    height: 88vh;
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 24px 70px rgba(0,0,0,0.35);
  }
  .mp-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background: var(--mp-navy);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
  }
  .mp-preview-close {
    background: none;
    border: none;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    padding: 2px 6px;
    line-height: 1;
  }
  .mp-preview-close:hover { opacity: 0.7; }
  .mp-preview-body { flex: 1; min-height: 0; }
  .mp-preview-body iframe { width: 100%; height: 100%; border: none; display: block; }

  @media (max-width: 600px) {
    .mp-preview-overlay { padding: 0; }
    .mp-preview-modal { max-width: 100%; height: 100vh; border-radius: 0; }
  }

  .mp-note { font-size: 13px; color: #6b7280; margin-top: 22px; text-align: center; }

  /* ==== PROGRESS BAR (shown while merging) ==== */
  .mp-progress-wrap {
    display: none;
    background: #fff;
    border: 1px solid var(--mp-border);
    border-radius: 10px;
    padding: 14px 18px;
    margin-top: 18px;
  }
  .mp-progress-wrap.mp-show { display: block; }
  .mp-progress-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 13px;
  }
  .mp-progress-label { color: var(--mp-navy); font-weight: 600; }
  .mp-progress-count { color: #6b7280; }
  .mp-progress-track {
    width: 100%;
    height: 8px;
    background: #e5e7eb;
    border-radius: 5px;
    overflow: hidden;
  }
  .mp-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--mp-accent);
    border-radius: 5px;
    transition: width 0.2s ease;
  }
  .mp-progress-fill.mp-progress-done { background: var(--mp-accent-dark); }
  .mp-progress-pct {
    font-size: 12px;
    color: var(--mp-accent-dark);
    font-weight: 700;
    margin-top: 5px;
    text-align: right;
  }