.mvv-size-calc{background:#111;color:#fff;border-radius:20px;padding:28px 26px;margin:0 0 32px;box-shadow:0 6px 20px rgba(0,0,0,0.3);}
.mvv-size-calc__header{display:flex;align-items:center;gap:12px;margin-bottom:6px;}
.mvv-size-calc__icon{width:44px;height:44px;border-radius:50%;background:#D6FF2F;display:flex;align-items:center;justify-content:center;font-size:1.3em;flex-shrink:0;}
.mvv-size-calc__title{font-weight:800;font-size:1.2em;text-transform:uppercase;letter-spacing:0.02em;margin:0;color:#fff;}
.mvv-size-calc__subtitle{font-size:0.85em;color:#bbb;margin:8px 0 20px;}
.mvv-size-calc__row{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap;}
.mvv-size-calc__field{flex:1;min-width:130px;}
.mvv-size-calc__field label{display:block;font-size:0.72em;font-weight:700;text-transform:uppercase;letter-spacing:0.04em;color:#D6FF2F;margin-bottom:6px;}
.mvv-size-calc__field input{width:100%;padding:12px 14px;border:2px solid transparent;border-radius:10px;box-sizing:border-box;font-size:1em;background:#fff;color:#111;transition:border-color .15s;}
.mvv-size-calc__field input:focus{outline:none;border-color:#D6FF2F;}
.mvv-size-calc__level-label{display:block;font-size:0.72em;font-weight:700;text-transform:uppercase;letter-spacing:0.04em;color:#D6FF2F;margin-bottom:8px;}
.mvv-size-calc__level-group{display:flex;gap:8px;margin-bottom:18px;}
.mvv-level{flex:1;text-align:center;font-size:0.85em;padding:10px 4px;border-radius:10px;background:#fff;color:#111;cursor:pointer;font-weight:700;transition:background .15s;}
.mvv-level.is-active{background:#D6FF2F;}
.mvv-size-calc__result{display:none;align-items:center;gap:14px;padding:16px 18px;border-radius:14px;background:#D6FF2F;margin-bottom:10px;}
.mvv-size-calc__badge{width:52px;height:52px;border-radius:50%;background:#111;color:#D6FF2F;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.3em;flex-shrink:0;}
.mvv-size-calc__result-text{font-size:0.85em;color:#111;line-height:1.4;}
.mvv-size-calc__result-text strong{display:block;font-size:1.2em;margin-top:2px;}
.mvv-size-calc__warning{display:none;gap:10px;background:#2a2a12;border-radius:10px;padding:12px 14px;font-size:0.82em;color:#e8d98a;line-height:1.5;}