:root{--ptc-navy:#000080;--ptc-link:#0000cc;--ptc-action:#ff3300;--ptc-yellow:#ffff99;--ptc-gray:#c0c0c0;--ptc-ink:#000033}.ptc-home,.ptc-archive-wrap,.ptc-calculator{font-family:Verdana,Arial,Helvetica,sans-serif;color:var(--ptc-ink);line-height:1.6}.ptc-home,.ptc-archive-wrap{max-width:1180px;margin:0 auto;padding:28px 18px;background:#fff}.ptc-hero{border-bottom:1px dashed #555;margin-bottom:24px}.ptc-hero h1,.ptc-archive-wrap h1{color:var(--ptc-navy);font-family:Arial,sans-serif;font-size:clamp(42px,6vw,68px);line-height:1.08;margin:.15em 0}.ptc-hero p,.ptc-archive-wrap>header p{font-size:20px;max-width:850px}.ptc-eyebrow{font:700 14px "Courier New",monospace;color:#900}.ptc-calculator{--ptc-link:#0000cc;--ptc-action:#ff3300;border:3px solid var(--ptc-navy);background:#f8f8f8;box-shadow:5px 5px 0 #777;margin:24px auto 48px;max-width:1180px}.ptc-calc-head{background:var(--ptc-navy);color:#fff;padding:18px 22px;border-bottom:3px solid #000}.ptc-calc-head span{color:#ff0;font:700 13px "Courier New",monospace}.ptc-calc-head h2{color:#fff;font:800 28px Arial,sans-serif;margin:4px 0}.ptc-calc-head p{font-size:16px;margin:3px 0}.ptc-calc-layout{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(330px,.92fr)}.ptc-form{padding:22px}.ptc-fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}.ptc-field label{display:block;font-weight:800;font-size:16px;margin-bottom:6px}.ptc-dimension,.ptc-number{display:grid;grid-template-columns:minmax(0,1fr) 52px;border:2px inset #eee;background:#fff;min-height:56px}.ptc-dimension{grid-template-columns:minmax(0,1fr) 46px minmax(0,.8fr) 42px}.ptc-field input,.ptc-field select{border:0;min-width:0;width:100%;background:#fff;padding:10px;font-size:21px;font-weight:700;color:#000}.ptc-field select{border:2px inset #eee;min-height:56px}.ptc-dimension span,.ptc-number span{display:grid;place-items:center;background:#ddd;border-left:1px solid #999;font-weight:700}.ptc-dimension input:nth-of-type(2){border-left:1px solid #999}.ptc-money{grid-template-columns:45px minmax(0,1fr)}.ptc-money span{grid-column:1;grid-row:1;border-left:0;border-right:1px solid #999}.ptc-money input{grid-column:2;grid-row:1}.ptc-calculate{width:100%;min-height:65px;margin-top:22px;background:var(--ptc-action);color:#fff;border:4px outset #ffb199;box-shadow:4px 4px 0 #600;font:900 20px Arial,sans-serif}.ptc-calculate:hover,.ptc-calculate:focus{background:#c00;color:#ff0}.ptc-calculate:active{border-style:inset;transform:translate(3px,3px);box-shadow:1px 1px 0 #600}.ptc-form-actions{display:flex;gap:9px;margin-top:17px}.ptc-form-actions button{min-height:45px;padding:8px 14px;background:#e5e5e5;border:2px outset #fff;color:var(--ptc-link);text-decoration:underline;font-weight:700}.ptc-results{border-left:3px solid var(--ptc-navy);background:#fff}.ptc-result-title{padding:13px 20px;background:var(--ptc-yellow);color:#060;font-weight:900}.ptc-primary-value{padding:20px 20px 5px;background:var(--ptc-yellow);color:#060;font:900 clamp(33px,4vw,52px) Arial,sans-serif;line-height:1.1}.ptc-recommendation{padding:8px 20px 18px;background:var(--ptc-yellow);font-weight:700}.ptc-result-list{margin:0;padding:14px 20px}.ptc-result-list div{display:flex;justify-content:space-between;gap:20px;border-bottom:1px dashed #888;padding:9px 0}.ptc-result-list dt{color:#333}.ptc-result-list dd{font-weight:800;margin:0;text-align:right}.ptc-disclaimer{font-size:13px;color:#333;padding:12px 20px;border-top:1px solid #aaa}.ptc-tool-section{margin:48px auto}.ptc-tool-section h2,.ptc-next h2{font:800 32px Arial,sans-serif;color:var(--ptc-navy)}.ptc-tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.ptc-tool-card{background:#ffffee;border:1px solid var(--ptc-link);box-shadow:3px 3px 0 #bbb;padding:18px}.ptc-tool-card h2,.ptc-tool-card h3{margin:0 0 8px;font-size:19px}.ptc-tool-card a{color:var(--ptc-link);text-decoration:underline;font-weight:800}.ptc-tool-card a:visited{color:#551a8b}.ptc-tool-card a:hover{color:#c00}.ptc-tool-card p{font-size:15px}.ptc-directory-cta{margin-top:24px;padding:20px;text-align:center;background:var(--ptc-yellow);border:2px solid var(--ptc-navy);box-shadow:4px 4px 0 #777}.ptc-directory-cta strong{display:block;font-size:17px}.ptc-directory-cta a{display:block;color:var(--ptc-link);font-size:21px;font-weight:900;text-decoration:underline}.ptc-next{background:var(--ptc-navy);color:#fff;border:3px ridge #ccc;padding:22px}.ptc-next h2{color:#ff0;margin-top:0}.ptc-next>div{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.ptc-next a{display:block;border:1px solid #fff;padding:14px;color:#6ff;text-decoration:underline;font-weight:800}.ptc-next a:hover{color:#fff;background:rgba(255,255,255,.08)}
.ptc-formula{font-size:13px;color:#333;padding:10px 20px;border-top:1px dashed #aaa;background:#fffbe6}
.ptc-form-actions{flex-wrap:wrap}
.ptc-history{border:2px solid var(--ptc-navy);background:#fff;margin:0 22px 22px;padding:14px}
.ptc-history-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;gap:10px}
.ptc-history-head h3{margin:0;font-size:16px;color:var(--ptc-navy)}
.ptc-history-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.ptc-history-item{width:100%;text-align:left;background:#eef;border:1px solid #99c;padding:8px 10px;display:flex;justify-content:space-between;gap:10px;cursor:pointer;font-weight:700;color:var(--ptc-link)}
.ptc-history-item:hover{background:#dde}
.ptc-history-time{font-weight:400;color:#555;font-size:12px}
.ptc-history-empty{color:#666;font-size:14px;list-style:none}
.ptc-history-clear,.ptc-project-clear{background:#e5e5e5;border:2px outset #fff;padding:6px 10px;font-weight:700;color:var(--ptc-link);text-decoration:underline;white-space:nowrap}
.ptc-project{border-top:3px solid var(--ptc-navy);background:#f8fff8;margin:0;padding:20px 22px}
.ptc-project-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:10px}
.ptc-project-head h3{margin:0;color:var(--ptc-navy);font-size:20px}
.ptc-project-empty{color:#555}
.ptc-project-list{list-style:none;margin:0 0 14px;padding:0;display:grid;gap:8px}
.ptc-project-row{display:flex;justify-content:space-between;align-items:center;gap:10px;border:1px solid var(--ptc-link);background:#fff;padding:10px 14px}
.ptc-project-row strong{display:block;font-size:14px}
.ptc-project-row span{color:#060;font-weight:800}
.ptc-project-remove{background:#fee;border:1px solid #900;color:#900;font-weight:700;padding:6px 10px;white-space:nowrap}
.ptc-project-totals{margin:0;border-top:2px dashed var(--ptc-navy);padding-top:10px;display:grid;gap:6px}
.ptc-project-totals div{display:flex;justify-content:space-between}
.ptc-project-totals dt{color:#333}
.ptc-project-totals dd{margin:0;font-weight:900;color:#060}
.ptc-route{margin:24px auto;max-width:1180px;background:#fff;border:3px solid var(--ptc-navy);box-shadow:5px 5px 0 #777;padding:22px}
.ptc-route h2{margin-top:0;color:var(--ptc-navy);font:800 26px Arial,sans-serif}
.ptc-route-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.ptc-route-option{display:block;background:#ffffee;border:1px solid var(--ptc-link);box-shadow:3px 3px 0 #bbb;padding:16px;text-decoration:none;color:var(--ptc-ink)}
.ptc-route-option strong{display:block;color:var(--ptc-link);text-decoration:underline;margin-bottom:6px;font-size:16px}
.ptc-route-option span{font-size:14px;color:#333}
.ptc-route-option:hover strong{color:#c00}.ptc-directory-search{margin:26px 0;background:#eee;border:2px solid var(--ptc-navy);padding:16px}.ptc-directory-search label{display:block;font-size:18px;font-weight:800}.ptc-directory-search input{width:100%;max-width:650px;min-height:52px;font-size:20px;padding:8px;border:2px inset #eee}.ptc-files{max-width:1180px;margin:30px auto}.ptc-files a{color:var(--ptc-link);text-decoration:underline}.ptc-large .ptc-field label{font-size:17px}.ptc-large .ptc-field input{font-size:23px}.ptc-large .ptc-result-list{font-size:16px}@media(max-width:900px){.ptc-calc-layout{grid-template-columns:1fr}.ptc-results{border-left:0;border-top:3px solid var(--ptc-navy)}.ptc-tool-grid{grid-template-columns:1fr 1fr}.ptc-next>div,.ptc-route-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.ptc-fields,.ptc-tool-grid,.ptc-next>div,.ptc-route-grid{grid-template-columns:1fr}.ptc-form{padding:16px}.ptc-calc-head{padding:16px}.ptc-form-actions{display:grid;grid-template-columns:1fr}.ptc-home,.ptc-archive-wrap{padding:18px 12px}.ptc-history,.ptc-project{padding:16px}.ptc-project-row,.ptc-history-item,.ptc-project-head,.ptc-history-head{flex-direction:column;align-items:flex-start;gap:6px}}@media print{.ptc-calculate,.ptc-form-actions,.ptc-tool-section,.ptc-next,.ptc-route,.ptc-history,.ptc-project{display:none!important}.ptc-calculator{box-shadow:none}.ptc-results{border:2px solid #000}}