.tier-wrapper {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        padding: 4em 2em;
        gap: 2em;
        background: var(--text);
      }

      .main-title h1 {
        background: linear-gradient(135deg, var(--white) 0%, var(--base) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        font-size: 3rem;
        font-family: 'heading';
        font-weight: 500;
        text-align: center;
      }

      /* --- TOGGLE CONTROLS --- */
      .selector-switch {
        display: flex;
        background: rgba(255, 255, 255, 0.05);
        padding: 0.5rem;
        border-radius: 1.3rem;
        border: 1px solid #555;
        margin-bottom: 1em;
      }

      .option-btn {
        padding: 0.6rem 1rem;
        border-radius: 0.8rem;
        cursor: pointer;
        color: var(--white);
        font-size: 0.7rem;
        font-weight: 600;
        transition: 0.3s;
        text-transform: uppercase;
        letter-spacing: 1px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
      }

      .option-btn b {
        font-size: 0.6rem;
        background: var(--base);
        padding: 0.3rem;
        border-radius: 0.3rem;
        color: var(--text);
      }

      .option-btn.is-active {
        background: var(--base);
        color: var(--text);
      }

      /* --- PRODUCT GRIDS --- */
      .pricing-grid {
        display: flex;
        gap: 5em;
        width: 100%;
        justify-content: center;
        padding: 3rem 0;
      }

      .module-box {
        position: relative;
        width: 300px;
        height: 420px;
        perspective: 1400px;
        cursor: pointer;
      }

      .module-layer-back {
        position: absolute;
        width: 100%;
        height: 100%;
        padding: 2.5em 1.5em;
        background: var(--white);
        border-radius: 1rem;
        transform-origin: left top;
      }

      .module-layer-front ul {
        list-style: none;
      }

      .module-layer-front li {
        color: var(--text);
        opacity: 0.8;
        font-size: 11px;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-bottom: 18px;
        display: flex;
        align-items: center;
        gap: 10px;
      }

      .module-layer-front li svg {
        width: 16px;
        height: 16px;
        color: var(--base);
        stroke-width: 3px;
        flex-shrink: 0;
      }

      .module-action-trigger {
        position: absolute;
        right: 0;
        bottom: 0;
        width: 75%;
        height: 75%;
        background: var(--base);
        border-radius: 10px;
        transition: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
      }

      .module-action-trigger p {
        position: absolute;
        top: 25%;
        right: -10px;
        transform: rotate(90deg);
        color: var(--text);
        font-size: 1rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 2px;
        white-space: nowrap;
      }

      .module-layer-front {
        position: absolute;
        width: 100%;
        height: 100%;
        padding: 2.5em 2em;
        backdrop-filter: blur(25px);
        border-radius: 1rem;
        color: #fff;
        transform-style: preserve-3d;
        transform-origin: left top;
        transition: 0.5s ease;
      }

      .module-layer-front .tier-title {
        margin-bottom: 1.5em;
        font-size: 1rem;
        font-weight: 900;
        text-transform: uppercase;
        letter-spacing: 2px;
        color: var(--text);
      }

      .module-layer-front .summary-text {
        font-size: 0.8rem;
        margin-bottom: 1em;
        line-height: 1.2;
        color: var(--text);
      }

      /* --- MOTION PRICE --- */
      .cost-housing {
        overflow: hidden;
        height: 60px;
      }

      .cost-value {
        font-size: 3rem;
        font-family: 'heading';
        font-weight: 700;
        color: var(--text);
        transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.3s;
      }

      .cost-value span {
        font-size: 14px;
        font-weight: 400;
        opacity: 0.5;
      }

      .cost-value.is-updating {
        transform: translateY(20px);
        opacity: 0;
      }

      .yearly-disclosure {
        font-size: 0.6rem;
        color: var(--text);
        margin-top: -0.7rem;
        margin-bottom: 1rem;
        opacity: 0;
        transform: translateY(10px);
        transition: 0.4s ease;
      }

      .yearly-disclosure.is-visible {
        opacity: 1;
        transform: translateY(0);
      }

      .highlight-tag {
        position: absolute;
        top: 20px;
        right: 20px;
        background: var(--base);
        color: var(--text);
        font-size: 0.7rem;
        padding: 2px 8px;
        font-weight: 800;
        border-radius: 3px;
      }

      /* INTERACTION STATES */
      .module-box:hover .module-action-trigger {
        transform: translateX(40px) rotateZ(7deg);
      }

      .module-box:hover .module-layer-front {
        transform: rotateY(-40deg);
      }

      @media (max-width: 1000px) {
        .pricing-grid { flex-direction: column; gap: 4em; }
        .tier-wrapper { padding: 6em 0; }
        .tier-wrapper .main-title {
          width: 90%;
          font-size: 2rem;
          text-align: center;
        }
      }