/* Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: 'Segoe UI', sans-serif;
    background: #fff;
    color: #333;
    line-height: 1.6;
  }
  
  /* Header */
  .header {
    display: flex;
    align-items: center;
    padding: 1rem 2rem;
    background: #f5f5f5;
  }
  
  .logo {
    height: 40px;
    margin-right: 1rem;
  }
  
  .brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: #f60;
  }
  
  /* Toggle Section */
  .toggle-section {
    text-align: center;
    margin: 1rem 0;
  }
  
  .switch {
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .switch input {
    display: none;
  }
  
  .slider {
    width: 50px;
    height: 25px;
    background-color: #f60;
    border-radius: 15px;
    position: relative;
    cursor: pointer;
  }
  
  .slider::after {
    content: '';
    width: 20px;
    height: 20px;
    background: white;
    position: absolute;
    top: 2.5px;
    left: 2.5px;
    border-radius: 50%;
    transition: 0.3s;
  }
  
  /* Toggle active */
  input:checked + .slider::after {
    transform: translateX(25px);
  }
  
  /* Cards */
  .packages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
  }
  
  .card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    padding: 1.5rem;
    text-align: center;
    position: relative;
  }
  
  /* Circular chart */
  .speed-circle {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto;
  }
  
  .circular-chart {
    display: block;
    margin: 0 auto;
    max-width: 100%;
  }
  
  .circle-bg {
    fill: none;
    stroke: #eee;
    stroke-width: 3.8;
  }
  
  .circle {
    fill: none;
    stroke: #f60;
    stroke-width: 3.8;
    stroke-linecap: round;
    animation: progress 1s ease-out forwards;
  }
  
  @keyframes progress {
    0% {
      stroke-dasharray: 0, 100;
    }
  }
  
  .circle-title, .circle-value, .circle-unit {
    fill: #333;
    font-size: 0.2rem;
    text-anchor: middle;
    dominant-baseline: middle;
  }
  
  .circle-title {
    y: 13;
    font-size: 0.3rem;
  }
  
  .circle-value {
    font-size: 0.45rem;
  }
  
  .circle-unit {
    y: 28;
    font-size: 0.25rem;
  }
  
  /* Badge */
  .badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: #f4511e;
    color: white;
    font-size: 0.7rem;
    font-weight: bold;
    padding: 0.4rem;
    border-radius: 50%;
    width: 55px;
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    line-height: 1;
  }
  
  /* Price and Button */
  .price {
    font-size: 1.2rem;
    margin-top: 1rem;
  }
  
  .price span {
    font-size: 0.8rem;
    color: #888;
  }
  
  .btn {
    display: inline-block;
    background-color: #f60;
    color: white;
    padding: 0.50rem 1rem;
    border: none;
    border-radius: 60px;
    text-decoration: none;
    font-weight: bold;
    font-size: 15px;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  .btn:hover {
    background-color: #d95400;
  }
  
  
  .modem-info {
    margin-top: 1rem;
    color: #777;
    font-size: 0.9rem;
  }
  
  /* Footer */
  .footer {
    text-align: center;
    padding: 1rem;
    background: #f5f5f5;
    font-size: 0.9rem;
    color: #666;
  }
  .card-title {
    font-size: 1.1rem;
    font-weight: bold;
    color: #f60;
    margin-bottom: 1rem;
  }