:root{--bg:#f6f5f1;--card:#fff;--ink:#17231f;--muted:#5c6b65;--line:#d9dfda;--accent:#1f6b52;--accent2:#dff0e8;--warn:#f3e7c4;--shadow:0 16px 40px rgba(22,40,33,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.62}a{color:inherit}.wrap{width:min(1120px,calc(100% - 32px));margin:auto}.nav{position:sticky;top:0;z-index:20;background:rgba(246,245,241,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(217,223,218,.9)}.nav-in{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-weight:850;letter-spacing:-.03em;text-decoration:none;font-size:1.18rem}.brand span{color:var(--accent)}.nav-links{display:flex;gap:22px;font-size:.93rem}.nav-links a{text-decoration:none;color:var(--muted)}.hero{padding:78px 0 48px}.eyebrow{display:inline-flex;gap:8px;align-items:center;background:var(--accent2);color:var(--accent);padding:7px 11px;border-radius:999px;font-size:.82rem;font-weight:750}.hero h1{font-size:clamp(2.8rem,7vw,5.8rem);line-height:.95;letter-spacing:-.065em;max-width:900px;margin:22px 0 24px}.hero p{font-size:1.15rem;color:var(--muted);max-width:720px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 16px;border-radius:12px;text-decoration:none;font-weight:760;border:1px solid var(--line);background:var(--card)}.btn.primary{background:var(--ink);color:white;border-color:var(--ink)}.trust{display:flex;gap:18px;flex-wrap:wrap;margin-top:26px;color:var(--muted);font-size:.9rem}.trust b{color:var(--ink)}.section{padding:46px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:22px}.section h2{font-size:clamp(1.9rem,4vw,3rem);letter-spacing:-.045em;line-height:1.05;margin:0}.section-head p{color:var(--muted);max-width:520px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 1px 0 rgba(0,0,0,.02);transition:.2s ease}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.card a{text-decoration:none}.tag{font-size:.76rem;text-transform:uppercase;letter-spacing:.09em;color:var(--accent);font-weight:850}.card h3{font-size:1.25rem;margin:8px 0 8px;letter-spacing:-.025em}.card p{color:var(--muted);margin:0}.calculator-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);gap:22px;align-items:start}.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:.88rem;font-weight:740}.field small{color:var(--muted)}input,select,textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:11px;padding:12px;font:inherit;color:var(--ink)}input:focus,select:focus,textarea:focus{outline:2px solid rgba(31,107,82,.2);border-color:var(--accent)}.result{position:sticky;top:88px;background:var(--ink);color:#fff;border-radius:20px;padding:26px}.result .kicker{opacity:.68;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em}.result .big{font-size:2.65rem;line-height:1;letter-spacing:-.05em;font-weight:900;margin:9px 0 12px}.result .sub{opacity:.78}.result-list{display:grid;gap:10px;margin-top:22px}.result-row{display:flex;justify-content:space-between;gap:12px;padding-top:10px;border-top:1px solid rgba(255,255,255,.14)}.result-row span:first-child{opacity:.7}.ad-slot{border:1px dashed #b8c4bd;border-radius:14px;padding:20px;text-align:center;color:#75827c;background:rgba(255,255,255,.55);font-size:.82rem;margin:26px 0}.article{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:clamp(22px,4vw,42px);margin-top:26px}.article h2,.article h3{letter-spacing:-.03em;line-height:1.15}.article h2{font-size:1.85rem;margin-top:34px}.article h2:first-child{margin-top:0}.formula{background:#eef5f1;border:1px solid #d9e8e0;padding:16px;border-radius:12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;overflow:auto}.note{background:var(--warn);border-radius:14px;padding:16px}.faq{border-top:1px solid var(--line);padding:16px 0}.faq h3{font-size:1rem;margin:0 0 6px}.footer{padding:56px 0 36px;border-top:1px solid var(--line);margin-top:64px;color:var(--muted)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}.footer a{color:var(--muted)}.legal{font-size:.86rem;margin-top:30px}.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0}.pill{font-size:.78rem;border:1px solid var(--line);border-radius:999px;padding:6px 9px;color:var(--muted);background:white}.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.method{padding:20px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.55)}.method b{display:block;margin-bottom:6px}@media(max-width:860px){.grid,.method-grid{grid-template-columns:repeat(2,1fr)}.calculator-layout{grid-template-columns:1fr}.result{position:relative;top:auto}.nav-links{display:none}.hero{padding-top:52px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}@media(max-width:560px){.grid,.method-grid,.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.wrap{width:min(100% - 22px,1120px)}.hero h1{font-size:3rem}.section{padding:34px 0}.panel{padding:18px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}