.tool-hero{display:flex;flex-wrap:wrap;gap:32px;align-items:flex-start;margin-bottom:1rem;}
.hero-text{flex:1;min-width:260px;}
.hero-text h1{font-size:40px;font-weight:700;line-height:1.2;margin-bottom:0;}
.hero-subtitle{font-size:18px;color:var(--text-muted,#6b7280);max-width:640px;margin-bottom:1rem;margin-top:0;}
@media (max-width:767px){.hero-text h1{font-size:clamp(1.75rem,5vw,2.5rem);}.hero-subtitle{font-size:clamp(1rem,3vw,1.125rem);}}
.mac-calc{margin-bottom:2rem;background:var(--surface,#fff);border:1px solid var(--border,#e5e7eb);border-radius:14px;box-shadow:0 2px 10px var(--shadow-soft,rgba(0,0,0,.06));overflow:hidden;}
.mac-body{display:flex;flex-direction:column;}
.mac-left{flex:1;min-width:0;}
.mac-table-aside{padding:1.25rem;background:var(--surface-muted,#f8f9fa);border-top:1px solid var(--border,#e5e7eb);}
.mac-op{padding:1.25rem 1.25rem 0;}
.mac-op-label{display:block;font-size:0.8125rem;font-weight:600;color:var(--text-muted,#6b7280);margin-bottom:0.5rem;text-transform:uppercase;letter-spacing:0.04em;}
.mac-op-select{width:100%;padding:0.75rem 1rem;font-size:1rem;color:var(--text-main,#111);background:var(--surface,#fff);border:1px solid var(--border,#e5e7eb);border-radius:10px;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem;}
.mac-op-select:focus{outline:none;border-color:var(--primary,#5e35b1);box-shadow:0 0 0 3px rgba(94,53,177,.15);}
.mac-panels{padding:1.25rem;}
.mac-panel{display:flex;flex-direction:column;gap:1rem;}
.mac-panel[hidden]{display:none;}
.mac-row{display:flex;flex-wrap:wrap;gap:1rem;}
.mac-row-triple{display:grid;grid-template-columns:1fr auto 1fr;gap:0.75rem;}
@media (max-width:480px){.mac-row-triple{grid-template-columns:1fr 1fr;}.mac-row-triple .mac-field:nth-child(2){grid-column:1 / -1;}}
.mac-field{display:flex;flex-direction:column;gap:0.375rem;min-width:0;}
.mac-label{font-size:0.875rem;font-weight:600;color:var(--text-main,#111);}
.mac-input{width:100%;padding:0.75rem 1rem;font-size:1rem;line-height:1.4;color:var(--text-main,#111);background:var(--surface,#fff);border:1px solid var(--border,#e5e7eb);border-radius:8px;box-sizing:border-box;transition:border-color .15s,box-shadow .15s;}
.mac-input:focus{outline:none;border-color:var(--primary,#5e35b1);box-shadow:0 0 0 2px rgba(94,53,177,.12);}
.mac-input::placeholder{color:var(--text-muted,#9ca3af);}
.mac-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 0.75rem center;padding-right:2rem;}
.mac-textarea{min-height:100px;resize:vertical;font-family:ui-monospace,monospace;}
.mac-input-narrow{max-width:5rem;}
.mac-actions{display:flex;flex-wrap:wrap;gap:0.75rem;padding:0 1.25rem 1.25rem;align-items:center;}
.mac-btn{padding:0.75rem 1.25rem;font-size:0.9375rem;font-weight:600;border-radius:8px;cursor:pointer;transition:background .15s,color .15s,transform .06s;border:none;}
.mac-btn-primary{color:#fff;background:var(--primary,#5e35b1);}
.mac-btn-primary:hover{background:var(--primary-dark,#4527a0);}
.mac-btn-primary:active{transform:scale(0.98);}
.mac-btn-ghost{color:var(--text-muted,#6b7280);background:transparent;}
.mac-btn-ghost:hover{color:var(--text-main,#111);background:var(--surface-muted,rgba(0,0,0,.04));}
.mac-out{padding:1.25rem;background:var(--surface-muted,#f8f9fa);border-top:1px solid var(--border,#e5e7eb);}
.mac-result-box{margin-bottom:0.75rem;}
.mac-out-title{font-size:1rem;font-weight:600;color:var(--text-main,#111);margin:0 0 0.5rem;}
.mac-result-body{font-size:0.9375rem;color:var(--text-main,#111);line-height:1.5;}
.mac-placeholder{color:var(--text-muted,#6b7280);margin:0;}
.mac-result-body .result-item{background:var(--surface,#fff);padding:1rem;border-radius:8px;border:1px solid var(--border,#e5e7eb);margin-bottom:0.5rem;}
.mac-result-body .result-item:last-child{margin-bottom:0;}
.mac-result-body .result-item strong{display:block;font-size:0.8125rem;color:var(--text-muted,#6b7280);margin-bottom:0.25rem;}
.mac-result-body .result-value{font-size:1.25rem;font-weight:700;color:var(--primary,#5e35b1);}
.mac-details{margin-top:0.5rem;border:1px solid var(--border,#e5e7eb);border-radius:8px;overflow:hidden;background:var(--surface,#fff);}
.mac-details-summary{padding:0.75rem 1rem;font-size:0.9375rem;font-weight:600;color:var(--text-main,#111);cursor:pointer;list-style:none;}
.mac-details-summary::-webkit-details-marker{display:none;}
.mac-details-summary:hover{background:var(--surface-muted,rgba(0,0,0,.03));}
.mac-steps,.mac-props{padding:1rem;font-size:0.875rem;color:var(--text-muted,#6b7280);line-height:1.6;border-top:1px solid var(--border,#e5e7eb);}
.mac-steps .solution-step,.mac-props .property-item{padding:0.5rem 0;margin-bottom:0.25rem;border-left:3px solid var(--border,#e5e7eb);padding-left:0.75rem;}
.mac-steps .solution-step.final,.mac-props .property-item:last-child{border-left-color:var(--primary,#5e35b1);}
.mac-result-body .error-message{background:rgba(185,28,28,.08);color:#b91c1c;padding:0.75rem 1rem;border-radius:8px;border:1px solid rgba(185,28,28,.2);}
.mac-table-title{font-size:1rem;font-weight:600;color:var(--text-main,#111);margin:0 0 0.75rem;}
.mac-table-control{margin-bottom:0.75rem;}
.mac-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.mac-table-wrap table{border-collapse:collapse;margin:0 auto;font-size:0.8125rem;}
.mac-table-wrap th,.mac-table-wrap td{border:1px solid var(--border,#e5e7eb);padding:0.35rem 0.5rem;text-align:center;min-width:2rem;}
.mac-table-wrap th{background:var(--primary,#5e35b1);color:#fff;font-weight:600;}
.mac-table-wrap .header-cell{background:var(--primary-dark,#4527a0);}
.mac-edu{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border,#e5e7eb);}
.mac-edu-head{font-size:1.125rem;font-weight:600;margin-bottom:0.5rem;color:var(--text-main,#111);}
.mac-edu-p{font-size:0.9375rem;color:var(--text-muted,#6b7280);line-height:1.6;margin-bottom:0.75rem;}
.mac-edu-p:last-of-type{margin-bottom:0;}
@media (min-width:640px){.mac-calc{padding:0;}.mac-op{padding:1.5rem 1.5rem 0;}.mac-panels{padding:1.5rem;}.mac-panel-basic .mac-row-triple{grid-template-columns:1fr 100px 1fr;}.mac-actions{padding:0 1.5rem 1.5rem;}.mac-out{padding:1.5rem;}}
@media (min-width:900px){.mac-body{flex-direction:row;}.mac-left{border-right:1px solid var(--border,#e5e7eb);}.mac-table-aside{width:280px;flex-shrink:0;border-top:none;border-left:1px solid var(--border,#e5e7eb);padding:1.5rem;position:sticky;top:1rem;align-self:flex-start;}.mac-table-wrap th,.mac-table-wrap td{min-width:2.25rem;padding:0.4rem 0.5rem;}}