@import url('https://fonts.googleapis.com/css2?family=Inter:wght@800&display=swap');
      body {
      background: #0d0d0d;
      font-family: 'Inter', sans-serif;
      color: #f0f0f0;
      margin: 0;
      padding: 0;
      }
      .container {
      max-width: 1200px;
      margin: 2rem auto;
      padding: 0 1rem;
      }
      h1 {
      text-align: center;
      font-size: 2.5rem;
      font-weight: 800;
      color: #CBFB45;
      margin-bottom: 1.5rem;
      letter-spacing: 0.05em;
      text-shadow: 0 0 8px #CBFB45aa;
      }
      .cards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 1.5rem;
      }
      .card {
      background: #0B1310;
      border-radius: 12px;
      padding: 1.8rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: 0 0 12px #39ff1417;
      position: relative;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 2px solid transparent;
      /* outline: 1px solid hsla(0, 0%, 100%, .16); */
      }
      .card:hover:not(.locked) {
      transform: translateY(-6px);
      box-shadow: 0 0 28px #ffffff3d;
      /* border-color: #39FF14; */
      outline: 1px solid hsla(0, 0%, 100%, .16);
      }
      .card.locked {
      filter: grayscale(80%) brightness(0.6);
      cursor: not-allowed;
      pointer-events: none;
      opacity: 0.6;
      box-shadow: none !important;
      }
      .card-header {
      display: flex;
      align-items: center;
      margin-bottom: 1.2rem;
      }
      .tier-badge {
      background: #CBFB45;
      padding: 0.5rem 1.2rem;
      font-size: 1.2rem;
      font-weight: 800;
      text-transform: uppercase;
      border-radius: 30px;
      color: #1a1a1a;
      letter-spacing: 0.04em;
      box-shadow: 0 0 8px #CBFB45aa;
      user-select: none;
      }
      .card-title {
      font-weight: 700;
      font-size: 1.1rem;
      margin-left: 1rem;
      color: #e0e0e0;
      text-shadow: 0 0 4px #39FF1477;
      user-select: none;
      }
      .stat {
      font-weight: 900;
      font-size: 2rem;
      color: #39FF14;
      text-shadow: 0 0 10px #39FF1477;
      margin-bottom: 1rem;
      letter-spacing: 0.04em;
      }
      .perks-list {
      margin: 0.8rem 0 1rem 1rem;
      color: #c7f0d1;
      font-size: 0.95rem;
      line-height: 1.4;
      }
      .perks-list li {
      margin-bottom: 0.4rem;
      }
      /* Progress Bar Container */
      .progress-bar {
      position: relative;
      background: #2a2a2a;
      border-radius: 20px;
      height: 16px;
      overflow: hidden;
      box-shadow:
      inset 0 0 6px #39FF1477,
      inset 0 0 14px #39FF1499;
      margin-bottom: 0.8rem;
      }
      /* Progress Fill */
      .progress-fill {
      background: linear-gradient(90deg, #39FF14, #CBFB45);
      height: 100%;
      border-radius: 20px 0 0 20px;
      box-shadow: 0 0 10px #39FF14cc;
      transition: width 0.4s ease-in-out;
      }
      /* Progress Text */
      .progress-text {
      font-size: 0.8rem;
      font-weight: 700;
      color: #a4f7b5;
      letter-spacing: 0.04em;
      text-align: center;
      text-shadow: 0 0 4px #39FF1477;
      user-select: none;
      margin-bottom: 1rem;
      }
      /* Claim Button */
      .btn-primary {
      background: linear-gradient(45deg, #39FF14, #CBFB45);
      border: none;
      padding: 0.7rem 0;
      border-radius: 30px;
      color: #1a1a1a;
      font-weight: 800;
      font-size: 1rem;
      cursor: pointer;
      width: 100%;
      letter-spacing: 0.04em;
      box-shadow: 0 0 12px #39FF1477;
      transition: background 0.3s ease, box-shadow 0.3s ease;
      }
      .btn-primary:hover {
      background: linear-gradient(135deg, #4cff25, #d0fa6a);
      box-shadow: 0 0 20px #4cff2588;
      }
      .btn-disabled {
      background: #444;
      color: #777;
      cursor: not-allowed;
      box-shadow: none;
      }
      /* Locked Icon */
      .lock-icon {
      position: absolute;
      top: 1rem;
      right: 1rem;
      font-size: 1.6rem;
      color: #555;
      user-select: none;
      }
      /* Not unlocked text */
      .not-unlocked {
      font-size: 0.9rem;
      font-weight: 700;
      color: #aaaaaa;
      margin-top: 0.6rem;
      text-align: center;
      user-select: none;
      text-shadow: 0 0 4px #39FF1477;
      }
      /* Responsive */
      @media (max-width: 480px) {
      .stat {
      font-size: 1.8rem;
      }
      .tier-badge {
      padding: 0.4rem 1rem;
      font-size: 1rem;
      }
      }