.ptdc{--green:#0d5b45;--green2:#16815f;--navy:#12304a;--gold:#f5b940;--red:#b42318;font-family:Arial,Helvetica,sans-serif;color:#17302b;max-width:980px;margin:24px auto;line-height:1.55}
.ptdc *{box-sizing:border-box}.ptdc-hero{padding:28px;border-radius:20px;background:linear-gradient(135deg,var(--navy),var(--green));color:#fff;box-shadow:0 12px 30px rgba(18,48,74,.18)}
.ptdc .ptdc-hero h2{font-size:clamp(26px,4vw,40px);line-height:1.15;margin:0 0 10px;color:#fff}.ptdc-hero p{margin:0;opacity:.92}.ptdc-badge{display:inline-block;background:var(--gold);color:#24352f;font-weight:700;border-radius:999px;padding:5px 12px;margin-bottom:12px;font-size:13px}
.ptdc-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:18px 0}.ptdc-tab{border:1px solid #cbd8d2;background:#fff;color:var(--navy);padding:13px 8px;border-radius:12px;font-weight:700;cursor:pointer}.ptdc-tab[aria-selected=true]{background:var(--green);color:#fff;border-color:var(--green)}
.ptdc-panel{background:#fff;border:1px solid #dce7e1;border-radius:18px;padding:22px;box-shadow:0 8px 24px rgba(31,68,55,.08)}.ptdc-panel[hidden]{display:none}.ptdc h3{margin:0 0 6px;color:var(--navy);font-size:23px}.ptdc-help{margin:0 0 18px;color:#587068;font-size:14px}
.ptdc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.ptdc label{font-weight:700;color:#263f38;display:block}.ptdc label small{display:block;font-weight:400;color:#6a7c76;font-size:12px;margin-top:3px}.ptdc input,.ptdc select{width:100%;margin-top:6px;border:1px solid #bfcfc7;border-radius:10px;padding:12px;font-size:16px;background:#fff;color:#18342d}.ptdc input:focus,.ptdc select:focus{outline:3px solid rgba(22,129,95,.16);border-color:var(--green2)}
.ptdc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.ptdc button{font-family:inherit}.ptdc-primary,.ptdc-secondary{border:0;border-radius:10px;padding:12px 18px;font-weight:700;cursor:pointer;font-size:15px}.ptdc-primary{background:var(--green);color:#fff}.ptdc-secondary{background:#e9f2ee;color:var(--green)}.ptdc-primary:hover{background:#094936}.ptdc-secondary:hover{background:#dbeae3}
.ptdc-result{display:none;margin-top:18px;padding:18px;border-left:5px solid var(--gold);border-radius:12px;background:#f7faf8}.ptdc-result.is-visible{display:block}.ptdc-result .ptdc-big{display:block;font-size:28px;color:var(--green);line-height:1.25;margin:6px 0}.ptdc-formula{font-size:13px;color:#587068;margin-top:8px}.ptdc-error{color:var(--red);font-weight:700}
.ptdc-warning{margin-top:18px;padding:16px 18px;border-radius:12px;background:#fff4e5;border:1px solid #f5d28e;color:#623e08;font-size:14px}.ptdc-footer{text-align:center;color:#63756f;font-size:13px;margin-top:14px}
@media(max-width:680px){.ptdc-grid{grid-template-columns:1fr}.ptdc-tabs{grid-template-columns:1fr}.ptdc-hero{padding:22px}.ptdc-panel{padding:17px}}
@media print{body *{visibility:hidden}.ptdc,.ptdc *{visibility:visible}.ptdc{position:absolute;left:0;top:0;width:100%}.ptdc-tabs,.ptdc-actions{display:none!important}.ptdc-panel[hidden]{display:none!important}.ptdc-hero{box-shadow:none}}