.datok-ninbu {
      margin: 0;
      padding: 0;
      font-family: 'Orbitron', 'Rajdhani', 'Segoe UI', sans-serif;
      background-color: transparent;
      color: #f2c66d;
      overflow: hidden;
    }

    .popup-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: rgba(16, 8, 8, 0.85);
      backdrop-filter: blur(5px);
      -webkit-backdrop-filter: blur(5px);
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 9999;
    }

    .popup-container {
      position: relative;
      width: 90%;
      max-width: 420px;
      background: linear-gradient(145deg, #231111, #100808);
      border-radius: 20px;
      overflow: hidden;
      text-align: center;
      animation: rotateScaleIn 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275), goldPulse 3.5s infinite ease-in-out;
      box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.9), 
        inset 0 1px 0 rgba(242, 198, 109, 0.3),
        inset 0 -2px 5px rgba(0, 0, 0, 0.9),
        0 0 30px rgba(242, 198, 109, 0.2);
      padding-bottom: 20px;
      border: 1px solid rgba(242, 198, 109, 0.45);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
    }

    /* 💛 Emas Cyber HUD Berdenyut Mewah */
    @keyframes goldPulse {
      0%, 100% {
        box-shadow: 
          0 20px 40px rgba(0, 0, 0, 0.9), 
          0 0 20px rgba(242, 198, 109, 0.25), 
          inset 0 1px 0 rgba(255, 255, 255, 0.3);
      }
      50% {
        box-shadow: 
          0 20px 40px rgba(0, 0, 0, 0.9), 
          0 0 40px rgba(242, 198, 109, 0.55), 
          inset 0 1px 0 rgba(255, 255, 255, 0.5);
      }
    }

    /* ✨ High-Gloss Diagonal Emas Elegan */
    .popup-container::before {
      content: "";
      position: absolute;
      top: -100%;
      left: -100%;
      width: 200%;
      height: 200%;
      background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0) 45%,
        rgba(242, 198, 109, 0.2) 50%,
        rgba(255, 255, 255, 0) 55%
      );
      animation: shineDiagonal 5s linear infinite;
      z-index: 2;
      pointer-events: none;
    }

    @keyframes shineDiagonal {
      0% {
        transform: translate(-100%, -100%) rotate(30deg);
      }
      100% {
        transform: translate(100%, 100%) rotate(30deg);
      }
    }

    .popup-image {
      width: 100%;
      display: block;
      border-bottom: 2px solid rgba(242, 198, 109, 0.4);
      filter: contrast(1.1);
    }

    .clk-btn-sgp {
      width: 100%;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      font-family: 'Orbitron', sans-serif;
      font-weight: 700;
      padding: 16px;
      position: relative;
      overflow: hidden;
    }

    /* Gold Cyber Line Separator */
    .clk-btn-sgp::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: calc(100% - 30px);
      height: 1px;
      background: linear-gradient(90deg, 
          transparent, 
          #f2c66d, 
          #ffe4ac, 
          #f2c66d, 
          transparent);
      opacity: 0.5;
    }

    .clk-btn-sgp a {
      text-align: center;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      padding: 15px 10px;
      margin: 0;
      border-radius: 10px;
      transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
      position: relative;
      overflow: hidden;
      font-size: 13px;
      text-decoration: none;
      z-index: 1;
    }

    /* LOGIN BUTTON - High-Gloss Metallic Gold 3D UI */
    .login {
      color: #1a0c09 !important;
      background: linear-gradient(135deg, #ffe4ac 0%, #f2c66d 35%, #d6a13d 70%, #f2c66d 100%);
      border: 1px solid #ffffff;
      text-shadow: none;
      box-shadow: 
        0 6px 0px #4b1d19,
        0 8px 15px rgba(0, 0, 0, 0.6),
        inset 0 2px 4px rgba(255, 255, 255, 0.9),
        inset 0 -2px 4px rgba(75, 29, 25, 0.8);
    }

    .login:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 
        0 8px 0px #4b1d19,
        0 12px 25px rgba(242, 198, 109, 0.6),
        inset 0 2px 6px rgba(255, 255, 255, 0.95);
      background: linear-gradient(135deg, #fff3d6 0%, #ffe4ac 40%, #f2c66d 80%, #d6a13d 100%);
    }

    /* REGISTER BUTTON - Cyber Gold Neumorphic Dark UI */
    .register {
      color: #f2c66d !important;
      background: linear-gradient(145deg, #321715, #241210);
      border: 2px solid #f2c66d;
      text-shadow: 0 0 8px rgba(242, 198, 109, 0.6);
      box-shadow: 
        0 6px 0px #000000,
        0 8px 15px rgba(0, 0, 0, 0.6),
        inset 0 0 10px rgba(242, 198, 109, 0.15);
    }

    .register:hover {
      transform: translateY(-3px) scale(1.02);
      background: linear-gradient(145deg, #50251f, #1c0e0d);
      box-shadow: 
        0 8px 0px #000000,
        0 12px 25px rgba(242, 198, 109, 0.4),
        0 0 20px rgba(242, 198, 109, 0.3),
        inset 0 0 15px rgba(242, 198, 109, 0.3);
      color: #ffffff !important;
      border-color: #ffe4ac;
    }

    /* Button Text Transition */
    .clk-btn-sgp a span {
      display: inline-block;
      transition: transform 0.3s ease;
    }

    .clk-btn-sgp a:hover span {
      transform: scale(1.05);
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .clk-btn-sgp {
        grid-template-columns: 1fr;
        gap: 10px;
      }
      
      .clk-btn-sgp a {
        padding: 14px 10px;
      }
    }

    .popup-footer {
      font-size: 11.5px;
      color: #ddcbb7;
      padding: 10px 15px 15px 15px;
      position: relative;
      z-index: 3;
      line-height: 1.5;
      font-family: 'Rajdhani', sans-serif;
      letter-spacing: 0.5px;
    }

    @keyframes rotateScaleIn {
      0% {
        opacity: 0;
        transform: scale(0.3) rotate(-10deg);
      }
      50% {
        transform: scale(1.05) rotate(2deg);
      }
      100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
      }
    }

    /* Efek Partikel Emas HUD */
    .gold-particle {
      position: absolute;
      background: radial-gradient(circle, rgba(255, 228, 172, 0.9) 0%, rgba(242, 198, 109, 0.4) 100%);
      border-radius: 50%;
      pointer-events: none;
      z-index: 1;
      animation: floatGold 10s infinite ease-in-out;
      box-shadow: 0 0 8px rgba(242, 198, 109, 0.8);
    }

    @keyframes floatGold {
      0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
      }
      10% { opacity: 0.8; }
      90% { opacity: 0.8; }
      100% {
        transform: translateY(-120px) translateX(40px);
        opacity: 0;
      }
    }

    /* Efek Border Emas Futuristik */
    .luxury-border {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      border: 1px solid rgba(242, 198, 109, 0.25);
      border-radius: 20px;
      pointer-events: none;
      z-index: 4;
      background: linear-gradient(135deg, 
        rgba(242, 198, 109, 0) 0%, 
        rgba(242, 198, 109, 0.08) 50%, 
        rgba(242, 198, 109, 0) 100%);
    }

    /* Tombol Close Cyber HUD */
    .close-btn {
      position: absolute;
      top: 12px;
      right: 12px;
      width: 30px;
      height: 30px;
      background: rgba(28, 14, 13, 0.8);
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      cursor: pointer;
      z-index: 10;
      transition: all 0.3s ease;
      border: 1px solid rgba(242, 198, 109, 0.4);
      box-shadow: 0 0 10px rgba(242, 198, 109, 0.2);
    }

    .close-btn:hover {
      background: rgba(242, 198, 109, 0.9);
      transform: rotate(90deg) scale(1.1);
      border-color: #fff;
    }

    .close-btn::before,
    .close-btn::after {
      content: '';
      position: absolute;
      width: 14px;
      height: 2px;
      background: #f2c66d;
      transition: background 0.3s ease;
    }

    .close-btn:hover::before,
    .close-btn:hover::after {
      background: #000;
    }

    .close-btn::before {
      transform: rotate(45deg);
    }

    .close-btn::after {
      transform: rotate(-45deg);
    }

    /* Responsif untuk Layar Kecil */
    @media (max-width: 480px) {
      .popup-container {
        width: 95%;
        max-width: 350px;
      }
      
      .clk-btn-sgp a {
        font-size: 12px;
        padding: 12px 0;
      }
      
      .popup-footer {
        font-size: 11px;
      }
      
      .close-btn {
        width: 26px;
        height: 26px;
      }
    }