.container { width: 100%; max-width: 500px; display: flex; flex-direction: column; align-items: center; gap: 20px; }

    .card {
      width: 100%; padding: 30px 24px; border-radius: 16px;
      background: rgba(255, 255, 255, 0.08);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      transition: all 0.3s ease-in-out;
    }

    .title { text-align: center; font-size: 1.8rem; margin-bottom: 20px; color: #ffffff; font-weight: 600; }

    input, select {
      width: 100%; padding: 12px 14px; margin-bottom: 14px;
      border: none; border-radius: 10px; font-size: 1rem;
      background: rgba(255, 255, 255, 0.15); color: #fff;
      outline: none; box-shadow: inset 0 0 5px rgba(255, 255, 255, 0.1);
    }
    input::placeholder, select { color: rgba(255, 255, 255, 0.7); }
    select option { color: #000; }

    button {
      width: 100%; padding: 12px;
      border: none; border-radius: 10px;
      font-size: 1rem; font-weight: bold;
      color: #fff; background: rgba(0, 123, 255, 0.7);
      cursor: pointer; transition: background 0.3s, transform 0.2s;
    }
    button:hover { background: rgba(0, 123, 255, 0.9); transform: translateY(-2px); }

    .add-btn {
      padding: 12px 25px; font-size: 16px; font-weight: 600;
      color: white; background: linear-gradient(135deg, #88ff00, #02ff67);
      border-radius: 25px; cursor: pointer; transition: 0.3s ease-in-out;
      box-shadow: 0 4px 15px rgba(255, 0, 43, 0.4);
      backdrop-filter: blur(10px); letter-spacing: 1px;
    }
    .add-btn:hover {
      background: linear-gradient(135deg, #44ff00, #04ff00);
      transform: scale(1.05);
      box-shadow: 0 0 12px rgba(255, 0, 43, 0.8), 0 0 25px rgba(38, 255, 0, 0.6);
    }

    .logout-btn {
      margin-top: 7px; padding: 10px 20px;
      background-color: #ff4d4d; color: white;
      border: none; border-radius: 999px;
      cursor: pointer; font-weight: bold; font-size: 0.95rem;
      box-shadow: 0 0 12px rgba(255, 77, 77, 0.6);
      transition: all 0.3s ease;
    }
    .logout-btn:hover {
      background-color: #e60000;
      box-shadow: 0 0 18px rgba(230, 0, 0, 0.8);
      transform: scale(1.05);
    }

    .back-btn {
      margin-top: 10px; padding: 10px 20px;
      background: linear-gradient(135deg, #0066ff, #00c2ff);
      color: white; border: none; border-radius: 999px;
      cursor: pointer; font-weight: bold; font-size: 0.95rem;
      box-shadow: 0 0 12px rgba(0, 194, 255, 0.6);
      transition: all 0.3s ease;
    }
    .back-btn:hover {
      background: linear-gradient(135deg, #0044cc, #0099ff);
      box-shadow: 0 0 18px rgba(0, 153, 255, 0.8);
      transform: scale(1.05);
    }

    .latlng { display: flex; gap: 10px; }
    .hidden { display: none; }

    .admin-heading {
      background: linear-gradient(90deg, #4facfe, #00f2fe);
      color: white; font-size: 24px; text-align: center;
      padding: 12px 20px; border-radius: 12px;
      box-shadow: 0 4px 15px rgba(0, 242, 254, 0.4);
      margin-bottom: 20px; letter-spacing: 1px; font-weight: bold;
      animation: glowPulse 2s infinite ease-in-out;
    }
    @keyframes glowPulse {
      0% { box-shadow: 0 4px 15px rgba(0, 242, 254, 0.4); }
      50% { box-shadow: 0 4px 25px rgba(0, 242, 254, 0.7); }
      100% { box-shadow: 0 4px 15px rgba(0, 242, 254, 0.4); }
    }

    /* Alert Box */
    .alert-box {
      display: none; padding: 12px 18px; margin-bottom: 18px;
      border-radius: 8px; font-weight: 600; font-size: 0.95rem;
      text-align: left; background: transparent;
      border-left: 6px solid red; color: #fff;
      animation: slideDown 0.4s ease forwards;
    }
    .alert-success { border-left-color: #00ff88; color: #00ff88; }
    .alert-error { border-left-color: #ff4d4d; color: #ff4d4d; }

    @keyframes slideDown {
      from { opacity: 0; transform: translateY(-10px); }
      to   { opacity: 1; transform: translateY(0); }
    }