/* ===== Alert Overlay ===== */
    .alert-overlay {
      position: fixed;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: rgba(0, 0, 0, 0.5);
      display: none;
      justify-content: center;
      align-items: center;
      z-index: 9999;
    }

    /* ===== Alert Box ===== */
    .alert-box {
      background: #fff;
      border-radius: 12px;
      width: 320px;
      max-width: 90%;
      box-shadow: 0 10px 25px rgba(0,0,0,0.2);
      animation: fadeIn 0.3s ease-out;
      text-align: center;
      padding: 20px 25px;
      font-family: "Segoe UI", sans-serif;
    }

    @keyframes fadeIn {
      from { transform: scale(0.8); opacity: 0; }
      to { transform: scale(1); opacity: 1; }
    }

    /* ===== Alert Icon ===== */
    .alert-icon {
      font-size: 48px;
      margin-bottom: 10px;
    }
    .alert-icon.success { color: #22c55e; } /* green */
    .alert-icon.error { color: #ef4444; }   /* red */
    .alert-icon.warning { color: #f59e0b; } /* yellow */
    .alert-icon.info { color: #3b82f6; }    /* blue */

    /* ===== Title & Message ===== */
    .alert-title {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 8px;
      color: #333;
    }
    .alert-message {
      font-size: 15px;
      color: #555;
      margin-bottom: 20px;
    }

    /* ===== Button ===== */
    .alert-button {
      background: #3b82f6;
      color: white;
      border: none;
      padding: 10px 20px;
      border-radius: 8px;
      cursor: pointer;
      font-size: 15px;
      transition: background 0.2s ease-in-out;
    }
    .alert-button:hover {
      background: #2563eb;
    }