* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Inter', Arial, sans-serif;
      background: linear-gradient(180deg, #0f172a 0%, #1e293b 50%, #334155 100%);
      min-height: 100vh;
      color: #1f2937;
    }

    .wrapper {
      max-width: 1000px;
      margin: 0 auto;
      padding: 2rem;
    }

    h1 {
      color: white;
      text-align: center;
      margin-bottom: 0.5rem;
      font-size: 3rem;
      font-weight: 700;
      text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }

    .subheader {
      text-align: center;
      margin-bottom: 3rem;
      color: rgba(255, 255, 255, 0.9);
      font-size: 1.2rem;
      font-weight: 400;
    }

    .net-info, .speedtest {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(20px);
      border-radius: 20px;
      padding: 2.5rem;
      margin-bottom: 2rem;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .net-info h2, .speedtest h2 {
      margin-top: 0;
      margin-bottom: 1.5rem;
      color: #1e3a8a;
      font-size: 1.5rem;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .speedtest h2::before {
      content: "⚡";
      font-size: 1.5rem;
    }

    .net-info h2::before {
      content: "🌐";
      font-size: 1.5rem;
    }

    .net-info {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1rem;
    }

    .net-info h2 {
      grid-column: 1 / -1;
    }

    .info-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 1rem;
    }

    .info-item {
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: 1.25rem;
      background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(6, 182, 212, 0.05));
      border-radius: 12px;
      border-left: 4px solid #3b82f6;
      transition: all 0.3s ease;
    }

    .info-item:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
    }

    .info-icon {
      width: 45px;
      height: 45px;
      background: linear-gradient(135deg, #3b82f6, #1e40af);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 1.2rem;
      font-weight: bold;
    }

    .info-text {
      flex: 1;
    }

    .info-label {
      font-size: 0.85rem;
      color: #6b7280;
      font-weight: 500;
      margin-bottom: 0.25rem;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .info-value {
      font-size: 1.1rem;
      font-weight: 600;
      color: #1f2937;
    }

    .net-info p {
      margin: 0;
      font-size: 14px;
    }

    .speedtest-widget {
      position: relative;
      width: 100%;
      height: 500px;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
      margin-bottom: 2rem;
    }

    .speedtest-widget iframe {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      border: none;
    }

    .controls {
      display: flex;
      justify-content: center;
      gap: 1rem;
      margin-top: 2rem;
      flex-wrap: wrap;
    }

    .controls button {
      background: linear-gradient(135deg, #3b82f6, #1e40af);
      color: white;
      padding: 1rem 2rem;
      border: none;
      border-radius: 12px;
      cursor: pointer;
      font-size: 1rem;
      font-weight: 600;
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
      min-width: 160px;
      justify-content: center;
    }

    .controls button:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    }

    .controls button:active {
      transform: translateY(0);
    }

    .controls button:nth-child(2) {
      background: linear-gradient(135deg, #06b6d4, #0891b2);
      box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
    }

    .controls button:nth-child(2):hover {
      box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
    }

    .controls button:nth-child(3) {
      background: linear-gradient(135deg, #10b981, #059669);
      box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
    }

    .controls button:nth-child(3):hover {
      box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
    }

    .controls button:nth-child(4) {
      background: linear-gradient(135deg, #ef4444, #dc2626);
      box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
    }

    .controls button:nth-child(4):hover {
      box-shadow: 0 8px 25px rgba(239, 68, 68, 0.4);
    }

    .note {
      background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(6, 182, 212, 0.08));
      border: 1px solid rgba(59, 130, 246, 0.2);
      border-radius: 12px;
      padding: 1.25rem;
      margin-top: 2rem;
      text-align: center;
      color: #1e40af;
      font-size: 0.95rem;
      font-weight: 500;
    }

    .loading {
      color: #3b82f6;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.5; }
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .wrapper {
        padding: 1rem;
      }

      h1 {
        font-size: 2rem;
      }

      .net-info, .speedtest {
        padding: 1.5rem;
      }

      .speedtest-widget {
        height: 400px;
      }

      .controls {
        flex-direction: column;
        align-items: center;
      }

      .controls button {
        width: 100%;
        max-width: 280px;
      }

      .info-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 480px) {
      h1 {
        font-size: 1.75rem;
      }

      .subheader {
        font-size: 1rem;
      }

      .speedtest-widget {
        height: 350px;
      }
    }