.ihfk-calculator{--g:#315c45;--gd:#244735;--light:#eef4ef;--sand:#f7f2e8;--text:#26332b;--muted:#68746d;--line:#d8dfda;--warning:#fff4cf;--danger:#fff0f0;--good:#e7f5ea;max-width:900px;margin:30px auto;font-family:Arial,Helvetica,sans-serif;color:var(--text);line-height:1.5}.ihfk-calculator *{box-sizing:border-box}.ihfk-card{background:#fff;border:1px solid rgba(49,92,69,.14);border-radius:18px;box-shadow:0 10px 28px rgba(33,54,42,.08);overflow:hidden}.ihfk-head{padding:28px;background:linear-gradient(135deg,var(--g),var(--gd));color:#fff}.ihfk-head h2{margin:0 0 8px;color:#fff;font-size:clamp(1.7rem,4vw,2.35rem)}.ihfk-head p{margin:0;color:#fff}.ihfk-body{padding:25px}.ihfk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.ihfk-calculator label{display:block;font-weight:700;margin-bottom:6px}.ihfk-calculator input,.ihfk-calculator select{width:100%;padding:12px;border:1px solid var(--line);border-radius:9px;font-size:16px;background:#fff;color:var(--text)}.ihfk-calculator small{display:block;color:var(--muted);margin-top:5px}.ihfk-info{padding:13px 15px;background:var(--sand);border-radius:10px;margin-bottom:18px}.ihfk-button{width:100%;margin-top:22px;padding:15px 18px;border:0;border-radius:9px;background:var(--g);color:#fff;font-weight:700;font-size:1.05rem;cursor:pointer;-webkit-appearance:none;appearance:none;touch-action:manipulation}.ihfk-button:hover{background:var(--gd)}.ihfk-error{display:none;padding:12px;background:var(--danger);border:1px solid #efcaca;color:#8b2929;border-radius:9px;margin-bottom:15px}.ihfk-results{display:none;margin-top:24px}.ihfk-results.is-visible{display:block}.ihfk-kpis{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.ihfk-kpi{padding:16px;background:var(--light);border:1px solid #d4e4d9;border-radius:11px}.ihfk-kpi span{display:block;color:var(--muted);font-size:.88rem}.ihfk-kpi strong{display:block;margin-top:4px;font-size:1.4rem;color:var(--gd)}.ihfk-message{display:none;padding:14px 16px;border-radius:10px;margin-top:11px}.ihfk-message.is-visible{display:block}.ihfk-message.good{background:var(--good);border-left:5px solid #4e955f}.ihfk-message.warn{background:var(--warning);border-left:5px solid #c69a24}.ihfk-message.bad{background:var(--danger);border-left:5px solid #b84d4d}.ihfk-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}.ihfk-calculator table{width:100%;border-collapse:collapse;margin-top:18px;min-width:720px}.ihfk-calculator th,.ihfk-calculator td{padding:10px;border-bottom:1px solid var(--line);text-align:left}.ihfk-calculator th{background:var(--light)}.ihfk-plan{margin-top:17px;padding:17px;background:var(--sand);border-radius:11px}@media(max-width:600px){.ihfk-calculator{margin:10px auto}.ihfk-head,.ihfk-body{padding:18px}.ihfk-grid,.ihfk-kpis{grid-template-columns:1fr}.ihfk-calculator table{font-size:.92rem}}