.ptfe{--g:#0d5b45;--g2:#16815f;--n:#12304a;--y:#f5b940;--r:#b42318;font-family:Arial,Helvetica,sans-serif;color:#17302b;max-width:980px;margin:24px auto;line-height:1.55}.ptfe *{box-sizing:border-box}.ptfe-hero{padding:28px;border-radius:20px;background:linear-gradient(135deg,var(--n),var(--g));color:#fff;box-shadow:0 12px 30px rgba(18,48,74,.18)}.ptfe-hero small{display:inline-block;background:var(--y);color:#24352f;font-weight:700;border-radius:999px;padding:5px 12px;margin-bottom:12px}.ptfe .ptfe-hero h2{font-size:clamp(26px,4vw,40px);line-height:1.15;margin:0 0 10px;color:#fff}.ptfe-hero p{margin:0}.ptfe-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px;align-items:start}.ptfe-card{border:1px solid #dce7e1;border-radius:15px;background:#fff;box-shadow:0 6px 18px rgba(31,68,55,.07);overflow:hidden}.ptfe-card.open{grid-column:1/-1;border-color:#a8c7b9}.ptfe-head{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;padding:17px 18px;border:0;background:#fff;color:var(--n);font-size:18px;font-weight:700;cursor:pointer}.ptfe-head b{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#e9f2ee;color:var(--g);font-size:24px}.ptfe-card.open .ptfe-head b{background:var(--g);color:#fff}.ptfe-body{padding:0 18px 18px}.ptfe-body>p{margin:0 0 15px;color:#5a7169;font-size:14px}.ptfe-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.ptfe label{font-weight:700;color:#263f38}.ptfe input{width:100%;margin-top:6px;padding:12px;border:1px solid #bfcfc7;border-radius:10px;font-size:16px}.ptfe input:focus{outline:3px solid rgba(22,129,95,.16);border-color:var(--g2)}.ptfe-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:17px}.ptfe-primary,.ptfe-secondary{border:0;border-radius:10px;padding:11px 17px;font-weight:700;cursor:pointer}.ptfe-primary{background:var(--g);color:#fff}.ptfe-secondary{background:#e9f2ee;color:var(--g)}.ptfe-result{display:none;margin-top:16px;padding:16px;border-left:5px solid var(--y);border-radius:10px;background:#f7faf8}.ptfe-result.show{display:block}.ptfe-big{display:block;color:var(--g);font-size:26px;line-height:1.25;margin:4px 0}.ptfe-formula{font-size:13px;color:#60756e;margin-top:8px}.ptfe-error{color:var(--r);font-weight:700}.ptfe-table{width:100%;border-collapse:collapse;margin-top:8px}.ptfe-table th,.ptfe-table td{padding:9px;border-bottom:1px solid #dce7e1;text-align:right}.ptfe-table th:first-child,.ptfe-table td:first-child{text-align:left}.ptfe-note{margin-top:18px;padding:16px 18px;border-radius:12px;background:#fff4e5;border:1px solid #f5d28e;color:#623e08;font-size:14px}.ptfe-footer{text-align:center;color:#63756f;font-size:13px}@media(max-width:720px){.ptfe-list,.ptfe-grid{grid-template-columns:1fr}.ptfe-card.open{grid-column:auto}.ptfe-hero{padding:22px}}