.ppcard{
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    z-index: 1;
  }
  
  .ppcard-head{
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
  }
  
  .ppcard-title-wrap{
    min-width: 0;
    flex: 1;
  }
  
  .ppcard-title{
    margin: 0;
    font-size: 28px;
    line-height: 1;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: rgb(var(--ink));
  }
  
  .ppcard-subtitle{
    margin: 6px 0 0;
    font-size: 14px;
    line-height: 1.4;
    color: rgba(18,18,22,0.62);
  }
  
  .ppcard-body{
    display: grid;
    gap: 16px;
  }
  
  .ppcard-row{
    display: grid;
    gap: 10px;
  }
  
  .ppcard-label{
    margin: 0;
    padding-left: 4px;
    font-size: 11px;
    line-height: 1;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(18,18,22,0.52);
  }
  
  .ppcard-input{
    width: 100%;
    height: 48px;
    min-width: 0;
    padding: 0 14px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.42);
    font: inherit;
    font-size: 15px;
    font-weight: 600;
    color: rgb(var(--ink));
    background: rgba(255,255,255,0.72);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    outline: none;
    transition:
      background .18s ease,
      box-shadow .18s ease,
      border-color .18s ease;
  }
  
  .ppcard-input:focus{
    background: rgba(255,255,255,0.92);
    border-color: rgba(94,168,255,.7);
    box-shadow: 0 0 0 4px rgba(94,168,255,.16);
  }
  
  .ppcard-input::placeholder{
    color: rgba(18,18,22,0.4);
  }
  
  .ppcard-calc-btn{
    width: 100%;
    min-height: 50px;
    border: none;
    border-radius: 18px;
    cursor: pointer;
    font: inherit;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fff;
    background: #000;
    box-shadow:
      0 12px 26px rgba(0,0,0,.18),
      inset 0 1px 0 rgba(255,255,255,.18);
    transition:
      transform .18s ease,
      box-shadow .18s ease,
      opacity .18s ease;
  }
  
  .ppcard-calc-btn:hover{
    transform: translateY(-1px);
    box-shadow:
      0 16px 34px rgba(0,0,0,.22),
      inset 0 1px 0 rgba(255,255,255,.18);
  }
  
  .ppcard-calc-btn:active{
    transform: scale(.985);
  }
  
  .ppcard-calc-btn:disabled{
    opacity: .45;
    cursor: default;
    transform: none;
  }
  
  .ppcard-empty,
  .ppcard-error{
    padding: 18px 16px;
    border-radius: 22px;
    font-size: 14px;
    line-height: 1.45;
    background: rgba(255,255,255,0.34);
    border: 1px dashed rgba(255,255,255,0.42);
  }
  
  .ppcard-empty{
    color: rgba(18,18,22,0.58);
  }
  
  .ppcard-error{
    color: rgba(140,20,20,0.82);
    background: rgba(255,255,255,0.44);
    border-color: rgba(140,20,20,0.22);
  }
  
  /* ===================== */
  /* RESPONSIVE */
  /* ===================== */
  
  @media (max-width: 699px){
    .ppcard-title{
      font-size: 24px;
    }
  }
  
  @media (max-width: 420px){
    .ppcard{
      gap: 18px;
    }
  
    .ppcard-title{
      font-size: 22px;
    }
  
    .ppcard-subtitle{
      font-size: 13px;
    }
  
    .ppcard-input{
      height: 46px;
      font-size: 14px;
      padding: 0 12px;
    }
  
    .ppcard-calc-btn{
      min-height: 48px;
      font-size: 14px;
    }
  
    .ppcard-empty,
    .ppcard-error{
      padding: 16px 14px;
      font-size: 13px;
    }
  }