.tvlc-calculator{
  max-width:760px;
  margin:40px auto;
  padding:25px;
  background:#f7f9fc;
  border-radius:15px;
  box-shadow:0 10px 30px rgba(0,0,0,.1);
  font-family:Arial,sans-serif;
  color:#222;
}
.tvlc-calculator h2{text-align:center;margin:0 0 10px;color:#0b5ed7;font-size:28px;}
.tvlc-calculator .tvlc-subtitle{text-align:center;margin:0 0 25px;color:#666;}
.tvlc-row{display:flex;gap:20px;margin-bottom:20px;}
.tvlc-field{flex:1;}
.tvlc-field label{display:block;font-weight:700;margin-bottom:8px;}
.tvlc-field input,.tvlc-field select{
  display:block!important;
  width:100%!important;
  height:50px!important;
  min-height:50px!important;
  max-height:50px!important;
  padding:0 15px!important;
  margin:0!important;
  border:1px solid #cfd8e3!important;
  border-radius:8px!important;
  background:#fff!important;
  color:#222!important;
  font-size:16px!important;
  font-family:Arial,sans-serif!important;
  line-height:50px!important;
  box-sizing:border-box!important;
  outline:none!important;
}
.tvlc-field input:focus,.tvlc-field select:focus{border-color:#0b5ed7!important;box-shadow:0 0 0 3px rgba(11,94,215,.15)!important;}
.tvlc-field select{appearance:auto!important;-webkit-appearance:menulist!important;-moz-appearance:menulist!important;cursor:pointer!important;}
.tvlc-field input[type=number]::-webkit-outer-spin-button,.tvlc-field input[type=number]::-webkit-inner-spin-button{height:auto!important;}
.tvlc-btn{width:100%;padding:14px;margin-top:10px;font-size:17px;font-weight:700;border:none;border-radius:8px;cursor:pointer;background:#0b5ed7;color:#fff;}
.tvlc-btn:hover{background:#094fb6;}
.tvlc-reset{background:#6c757d;}
.tvlc-reset:hover{background:#555;}
.tvlc-copy{background:#198754;}
.tvlc-copy:hover{background:#12643e;}
.tvlc-result{margin-top:25px;background:#fff;padding:20px;border-left:6px solid #0b5ed7;border-radius:10px;text-align:center;}
.tvlc-result h3{margin-top:0;}
.tvlc-main-result{font-size:34px;font-weight:700;color:#0b5ed7;}
.tvlc-result-text{font-size:18px;font-weight:700;}
.tvlc-details{margin-top:20px;background:#fff;padding:18px;border-radius:10px;line-height:1.8;border:1px solid #dbe5f1;}
.tvlc-formula{margin-top:25px;background:#eef5ff;padding:20px;border-radius:10px;line-height:1.8;}
.tvlc-note{margin-top:20px;background:#fff8e5;border-left:5px solid #ffc107;padding:15px;border-radius:8px;line-height:1.7;}
.tvlc-directory{max-width:900px;margin:30px auto;padding:25px;background:#f7f9fc;border:1px solid #dbe5f1;border-radius:14px;font-family:Arial,sans-serif;}
.tvlc-directory h2{color:#0b5ed7;}.tvlc-directory code{background:#eef5ff;padding:3px 6px;border-radius:4px;}
@media(max-width:768px){.tvlc-row{flex-direction:column;gap:0;}.tvlc-calculator{padding:20px;margin:25px auto;}.tvlc-main-result{font-size:28px;}}