:root{--ink:#153631;--muted:#60736f;--green:#0b6b5c;--green-dark:#084c42;--mint:#dcf1e9;--warm:#f4b944;--paper:#fffdf9;--soft:#f3f7f5;--line:#dce6e2;--danger:#b42318;--shadow:0 12px 35px rgba(20,61,53,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Tahoma,"Segoe UI",Arial,sans-serif;line-height:1.7}.container{width:min(1120px,calc(100% - 40px));margin-inline:auto}.skip-link{position:absolute;right:-999px}.skip-link:focus{right:12px;top:12px;z-index:100;background:#fff;padding:8px 14px;border-radius:5px}.site-header{background:rgba(255,253,249,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;backdrop-filter:blur(8px)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;font-size:1.1rem}.brand 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h1{font-size:clamp(2rem,4vw,3.15rem);margin-bottom:14px}.page-hero>p:not(.eyebrow){font-size:1.05rem;color:var(--muted)}.calculator-stack{padding-bottom:80px}.calculator{border:1px solid var(--line);background:#fff;border-radius:18px;padding:30px;margin:0 0 25px;box-shadow:0 4px 20px rgba(13,54,45,.035);scroll-margin-top:95px}.calculator-heading{max-width:720px;margin-bottom:22px}.calculator-heading h2{font-size:1.55rem;margin:0 0 6px}.calculator-heading p{color:var(--muted);margin:0;font-size:.93rem}.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.field{display:flex;flex-direction:column;gap:6px;font-size:.87rem;font-weight:600;color:#294943}.field input,.field select{width:100%;font:inherit;font-weight:400;border:1px solid #cbdad5;background:#fff;border-radius:8px;padding:10px 11px;height:44px;color:var(--ink);outline:none;direction:rtl}.field input:focus,.field select:focus{border-color:var(--green);box-shadow:0 0 0 3px 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