:root{--ink:#112c36;--muted:#526b73;--soft:#eef5f3;--paper:#f8faf9;--accent:#087d6a;--accent-dark:#075e52;--border:#dde7e4;--warm:#ebf0ed;--focus:#f0b95d;color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-size:16px;line-height:1.55}a{color:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:3px}a:hover{color:var(--accent-dark)}.container{max-width:1140px;padding:0 24px;margin:0 auto}.narrow{max-width:875px}.skip{position:absolute;top:-80px;left:20px;background:#fff;padding:10px;z-index:99}.skip:focus{top:14px}.nav{background:#fff;border-bottom:1px solid var(--border)}.nav-in{display:flex;align-items:center;gap:28px;justify-content:space-between;min-height:77px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:780;letter-spacing:-.03em;font-size:22px}.brand-mark{height:39px;width:39px;background:var(--accent);border-radius:11px;display:grid;place-items:center;color:white;font-size:24px}.brand .brand-caption{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.14em;font-weight:650;color:var(--muted);margin-top:-8px}.nav-links{display:flex;align-items:center;gap:24px}.nav-links a{text-decoration:none;font-weight:600;font-size:14px}.lang-switch{padding:8px 12px;border:1px solid var(--border);border-radius:12px;background:var(--paper)}.hero{padding:82px 0 48px;background:radial-gradient(ellipse at 95% 18%,#e0efe7 0,transparent 45%),linear-gradient(180deg,#f7fbf9,var(--paper));border-bottom:1px solid var(--border)}.eyebrow{letter-spacing:.14em;text-transform:uppercase;font-weight:800;color:var(--accent);font-size:12px;margin-bottom:13px}.hero h1{font-weight:800;line-height:1.09;letter-spacing:-.058em;font-size:clamp(42px,6vw,74px);max-width:800px;margin:0 0 23px}.hero p{max-width:650px;color:var(--muted);font-size:19px;margin:0 0 28px}.btn{background:var(--accent);color:#fff;border-radius:13px;padding:13px 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var(--border);border-radius:20px;background:white;box-shadow:0 4px 18px #133a2710;display:flex;flex-direction:column;gap:9px}.card:hover{border-color:#aacdc2}.card-icon{display:grid;place-items:center;background:var(--soft);border-radius:14px;width:48px;height:48px;font-size:24px;color:var(--accent)}.card h3{font-size:22px;line-height:1.25;letter-spacing:-.025em;margin:5px 0 0}.card p{margin:0;color:var(--muted);font-size:14px;min-height:65px}.card a{display:inline-flex;gap:7px;align-items:center;margin-top:auto;font-weight:760;text-decoration:none;font-size:14px;color:var(--accent-dark)}.audience{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.audience-item{padding:22px;border-radius:18px;border:1px solid var(--border);background:var(--soft)}.audience-item h3{margin:0 0 7px;font-size:17px}.audience-item p{margin:0;font-size:14px;color:var(--muted)}.foot{padding:32px 0 48px;border-top:1px solid var(--border);font-size:13px;color:var(--muted)}.foot-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}.tool-hero{padding:48px 0 24px}.tool-hero h1{font-size:clamp(32px,4.5vw,48px);margin:12px 0 12px}.tool-hero p{color:var(--muted);font-size:16px;margin:0;max-width:750px}.crumb{color:var(--muted);font-size:14px;text-decoration:none}.crumb:hover{text-decoration:underline}.tool-grid{display:grid;grid-template-columns:minmax(290px,430px) minmax(300px,1fr);gap:20px;margin:14px auto 46px;align-items:start}.panel{background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:0 5px 25px #113b3011;overflow:hidden}.panel-head{padding:21px 24px 17px;border-bottom:1px solid var(--border)}.panel-head h2{font-size:19px;letter-spacing:-.03em;margin:0}.panel-head p{color:var(--muted);font-size:13px;margin:4px 0 0}.form-fields{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;padding:22px 24px}.field{min-width:0;display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:760}.field input,.field select{width:100%;padding:12px 13px;border:1px solid #cbdad6;border-radius:10px;background:white;font:inherit;color:var(--ink)}.field-hint{font-size:11px;color:var(--muted)}.advanced{border-top:1px solid var(--border);padding:0 24px}.advanced summary{list-style:none;padding:17px 0;color:var(--accent-dark);font-weight:760;font-size:14px;cursor:pointer}.advanced summary::before{content:'＋';margin-right:8px}.advanced[open] summary::before{content:'−'}.advanced .form-fields{padding:2px 0 24px}.viz{background:linear-gradient(180deg,#f3faf8,#eaf5f0);padding:22px;text-align:center;border-bottom:1px solid var(--border)}.viz svg{width:100%;max-width:400px;height:245px;overflow:visible}.diagram-line{stroke:var(--accent);stroke-width:2.5;fill:#aed6c999}.diagram-label{font-size:12px;fill:#20434b;font-family:inherit}.diagram-aux{stroke:#6f9a8f;stroke-width:1.1;stroke-dasharray:4 4}.results{padding:22px 24px 24px}.big-number{font-size:clamp(37px,4.5vw,52px);font-weight:850;letter-spacing:-.055em;line-height:1.1;color:var(--accent-dark);margin:8px 0 9px}.result-caption{font-size:12px;text-transform:uppercase;letter-spacing:.085em;color:var(--muted);font-weight:800}.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px;margin-top:14px}.metric{background:var(--paper);padding:13px;border:1px solid var(--border);border-radius:12px}.metric strong{display:block;margin-top:3px;font-size:17px;letter-spacing:-.025em}.metric small{color:var(--muted);font-size:11px}.error{padding:13px 16px;color:#8b2525;background:#fff1ed;border:1px solid #e2b4a6;border-radius:11px;margin:0 24px 24px}.fineprint{font-size:12px;color:var(--muted);margin:12px 0 0}.info-section{padding:0 0 72px}.info-section h2{font-size:23px;letter-spacing:-.04em;margin:12px 0}.info-section p,.info-section li{color:var(--muted)}.formula-box{padding:18px 22px;border-left:4px solid var(--accent);background:var(--soft);border-radius:9px;font-family:ui-monospace,Menlo,monospace;font-size:14px;overflow-wrap:anywhere}.bar-track{height:20px;width:78%;margin:78px auto 25px;border-radius:30px;background:#cde5de;overflow:hidden}.bar-fill{height:100%;border-radius:30px;background:var(--accent);transition:width .2s ease}.status{background:#fff9e9;border:1px solid #e6d29b;padding:17px 20px;border-radius:14px;color:#605129}.status strong{display:block;margin-bottom:3px}.status p{margin:0}.meta-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.document{max-width:780px}.document h2{font-size:22px;margin-top:38px}.document p,.document li{color:var(--muted)}.document code{background:var(--soft);padding:2px 5px;border-radius:4px}.document pre{overflow:auto;background:#11313a;color:#f1faf6;padding:18px;border-radius:12px}.footer-note{margin-top:30px}
@media(max-width:820px){.card-grid{grid-template-columns:repeat(2,1fr)}.audience{grid-template-columns:1fr}.tool-grid{grid-template-columns:1fr}.hero{padding:58px 0 37px}.nav-links{gap:13px}.section{padding:43px 0}}
@media(max-width:560px){.container{padding:0 16px}.nav-in{min-height:67px}.brand{font-size:19px}.brand-mark{height:35px;width:35px}.nav-in{flex-wrap:wrap;padding-top:10px;padding-bottom:10px;row-gap:8px}.nav-links{width:100%;justify-content:space-between;gap:9px;flex-wrap:wrap}.nav-links a{font-size:12px}.lang-switch{padding:6px 9px}.card-grid{grid-template-columns:1fr}.card p{min-height:unset}.hero h1{font-size:42px}.hero p{font-size:17px}.tool-hero{padding-top:34px}.panel-head,.results{padding-left:18px;padding-right:18px}.form-fields{padding-left:18px;padding-right:18px}.advanced{padding:0 18px}.section-head{align-items:start;flex-direction:column}.viz{padding:13px}.viz svg{height:210px}.field input,.field select{font-size:16px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition-duration:.01ms!important;scroll-behavior:auto!important}}