.calc-page-head{padding:48px 0 20px}
.crumbs{display:flex;flex-wrap:wrap;gap:6px;font-size:14px;color:var(--muted);margin-bottom:14px}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--ink);text-decoration:underline}
.crumbs span[aria-hidden]{opacity:.6}
.calc-page-head h1{font-family:var(--f-head);font-weight:800;font-size:clamp(2rem,4.4vw,3.1rem);line-height:1.06;letter-spacing:-.02em}
.calc-page-head .lede{margin-top:12px;font-size:1.1rem;max-width:44em}
.calc-shell{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(20px,3.5vw,36px)}
.calc-shell #calculator{display:flex;flex-direction:column;gap:24px}
.calc-shell #rightColumn{order:1;display:flex;flex-direction:column;gap:18px}
.calc-shell #leftColumn{order:2}
.calc-shell #basicCalculator{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 20px}
.calc-shell #basicCalculator>label{grid-column:auto;align-self:end;font-size:14.5px;font-weight:600;color:var(--muted);line-height:1.3}
.calc-shell #basicCalculator>div,.calc-shell #basicCalculator>input,.calc-shell #basicCalculator>select{grid-column:auto}
.calc-shell label{display:block;font-size:14.5px;font-weight:600;color:var(--muted);margin-bottom:6px}
.calc-shell input,.calc-shell select{width:100%;min-height:50px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;font:600 17px var(--f-body);color:var(--ink)}
.calc-shell select{appearance:auto;font-weight:400;font-size:16px}
.calc-shell input:focus,.calc-shell select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.calc-shell input[readonly]{background:var(--tint);border-color:#CBD6EE;font-weight:800}
.calc-shell div:has(>input+select),.calc-shell div:has(>select+input){display:flex;gap:8px}
.calc-shell div:has(>input+select)>input,.calc-shell div:has(>select+input)>input{flex:1;min-width:0}
.calc-shell div:has(>input+select)>select,.calc-shell div:has(>select+input)>select{flex:0 0 38%}
.calc-shell input[type=radio],.calc-shell input[type=checkbox]{width:auto;min-height:0}
.calc-actions{display:flex;gap:10px;flex-wrap:wrap}
.calc-btn{min-height:50px;padding:0 28px;border:0;border-radius:var(--r-md);font:600 16px/1 var(--f-body);cursor:pointer;transition:transform .12s ease,background-color .12s ease}
.calc-btn:active{transform:translateY(2px)}
.calc-btn--primary{background:var(--accent);color:var(--ink)}.calc-btn--primary:hover{background:#FF7A2E}
.calc-btn--ghost{background:var(--tint);color:var(--ink)}.calc-btn--ghost:hover{background:#D9E3F6}
.calc-error{padding:12px 16px;border-radius:var(--r-md);background:#FFF1E8;border:1px solid #F4C3A3;border-left:4px solid var(--accent);color:var(--ink);font-size:15.5px}
.calc-steps-wrap{display:block}
.calc-steps-toggle{display:inline-flex;align-items:center;gap:10px;padding:8px 0;border:0;background:none;font:600 15.5px var(--f-body);color:var(--accent-ink);cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.calc-steps-toggle #toggleArrow{display:inline-block;transition:transform .2s ease}
.calc-steps{padding:20px 22px;border-radius:var(--r-md);background:var(--bg);border:1px solid var(--line);font-size:15.5px;line-height:1.7;overflow-x:auto}
.calc-steps p+p,.calc-steps div+div{margin-top:.6em}
.calc-steps:empty{display:none!important}
@media (max-width:760px){.calc-shell #basicCalculator{grid-template-columns:1fr}.calc-actions .calc-btn{flex:1}}
.calc-hint{grid-column:1/-1;margin:0 0 4px;color:var(--muted);font-size:15.5px}
.calc-shell #leftColumn .calc-hint{margin:0}
#dynamicTimeDisplay{margin:8px 0;text-align:center}
#dynamicTimeDisplay .time-title{font:700 17px var(--f-body);margin-bottom:8px}
#dynamicTimeDisplay .time-box{display:inline-block;background:var(--tint);padding:10px 20px;border:1px solid var(--line);border-radius:var(--r-md);font-weight:600}
.calc-shell .calc-steps{margin-top:4px}
.calc-shell table{border-collapse:collapse;max-width:100%}.calc-shell td,.calc-shell th{border:1px solid var(--line);padding:6px 10px}
.calc-shell textarea{width:100%;min-height:90px;padding:10px 14px;border:1px solid var(--line);border-radius:var(--r-md);font:400 16px var(--f-body)}
.child-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-bottom:32px}
.child-grid a{display:flex;flex-direction:column;gap:2px;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);text-decoration:none;color:var(--ink)}
.child-grid a:hover{border-color:var(--accent)}
.child-grid strong{font-family:var(--f-head);font-weight:700;font-size:1.05rem}.child-grid span{color:var(--muted);font-size:14px}
.grid-title{font-family:var(--f-head);font-weight:800;font-size:1.4rem;margin:8px 0 16px}
.letters{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 24px}
.letters a{min-width:40px;padding:8px 10px;text-align:center;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);color:var(--ink);text-decoration:none;font-weight:600;font-size:14.5px}
.letters a:hover,.letters a[aria-current]{background:var(--accent);border-color:var(--accent)}
.faq{margin-top:40px}.faq h2{font-family:var(--f-head);font-weight:800;font-size:1.5rem;margin-bottom:12px}
.faq details{border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);padding:0 18px;margin-bottom:8px}
.faq summary{cursor:pointer;padding:14px 0;font-weight:600;list-style:none}.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--accent-ink);font-size:1.3rem;line-height:1}.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 16px;color:var(--muted)}

.calc-steps-toggle #toggleArrow{font-size:0;display:inline-block;width:14px;height:14px;position:relative;transition:transform .2s ease}
.calc-steps-toggle #toggleArrow::after{content:'';position:absolute;left:2px;top:3px;width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg)}