body {
      font-family: 'Segoe UI', sans-serif;
      margin: 0;
      padding: 0;
      background-color: #f4f4f4;
    }

    nav ul {
      list-style: none;
      display: flex;
      gap: 30px;
      padding: 20px 40px;
      background: #000;
      margin: 0;
    }

    nav ul li a {
      color: orange;
      text-decoration: none;
      font-weight: 600;
      font-size: 16px;
      padding: 5px 10px;
      border-radius: 4px;
      transition: background 0.3s;
    }

    nav ul li a:hover {
      background: rgba(255, 165, 0, 0.1);
    }

    /* Modal overlay */
    .modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background-color: rgba(0, 0, 0, 0.85);
      display: none;
      justify-content: center;
      align-items: center;
      z-index: 9999;
      backdrop-filter: blur(3px);
    }

    /* Notice Popup */
    .notice-popup {
      background: #fff;
      color: #111;
      padding: 35px 30px;
      border-radius: 16px;
      max-width: 540px;
      width: 90%;
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
      text-align: left;
      animation: fadeInZoom 0.35s ease-in-out;
      border-top: 8px solid orange;
    }

    @keyframes fadeInZoom {
      from {
        opacity: 0;
        transform: scale(0.9);
      }
      to {
        opacity: 1;
        transform: scale(1);
      }
    }

    .notice-popup h2 {
      margin: 0 0 15px;
      color: orange;
      font-size: 22px;
      font-weight: bold;
      text-transform: uppercase;
      text-align: center;
    }

    .notice-popup p {
      font-size: 15px;
      line-height: 1.6;
      margin: 10px 0;
    }

    .notice-popup .email {
      display: block;
      margin: 12px 0;
      padding-left: 10px;
      font-weight: bold;
      color: #cc5500;
      font-size: 14px;
      line-height: 1.5;
    }

    .close-btn {
      display: block;
      margin: 25px auto 0;
      padding: 12px 28px;
      background: linear-gradient(to right, orange, #ff8800);
      color: #000;
      border: none;
      border-radius: 50px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(255, 165, 0, 0.5);
      transition: all 0.3s ease-in-out;
    }

    .close-btn:hover {
      transform: scale(1.05);
      background: linear-gradient(to right, #ff8800, orange);
    }

    @media (max-width: 600px) {
      .notice-popup {
        padding: 25px 20px;
      }

      .notice-popup h2 {
        font-size: 20px;
      }

      .close-btn {
        font-size: 14px;
        padding: 10px 20px;
      }
    }