:root{--bg:#0b0f0d;--surface:#111714;--surface2:#171f1b;--line:#29332e;--text:#f5f7f5;--muted:#9eaaa3;--accent:#b7f36b;--accentInk:#14200c;--danger:#ff8b8b;--max:1180px}*{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;background:var(--bg);color:var(--text);line-height:1.55}button,input,select{font:inherit}button{color:inherit}a{color:inherit;text-decoration:none}.site-header{max-width:var(--max);margin:0 auto;padding:18px 24px;display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;letter-spacing:-.02em}.brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--accent);color:var(--accentInk);font-size:13px}.top-nav{display:flex;gap:22px;color:var(--muted);font-size:14px}.top-nav a:hover{color:var(--text)}.section-wrap{max-width:var(--max);margin:0 auto;padding:64px 24px}.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:center;padding-top:92px}.hero h1{font-size:clamp(46px,7vw,86px);line-height:.96;letter-spacing:-.058em;margin:12px 0 20px}.hero p{max-width:720px;color:var(--muted);font-size:18px;margin:0 0 28px}.eyebrow{color:var(--accent);font-size:12px;font-weight:850;text-transform:uppercase;letter-spacing:.15em}.button{border:0;border-radius:12px;padding:12px 18px;min-height:46px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-weight:800}.button.primary{background:var(--accent);color:var(--accentInk)}.button.secondary{border:1px solid var(--line);background:var(--surface)}.hero-panel{display:grid;gap:1px;border:1px solid var(--line);background:var(--line);border-radius:22px;overflow:hidden}.hero-panel div{background:var(--surface);padding:22px;display:flex;justify-content:space-between;align-items:end}.hero-panel strong{font-size:32px;letter-spacing:-.04em}.hero-panel span{color:var(--muted);font-size:13px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:24px}.section-heading h2,.content h2{font-size:clamp(30px,4vw,48px);letter-spacing:-.045em;margin:6px 0 0}.search{width:min(370px,100%);background:var(--surface);border:1px solid var(--line);color:var(--text);border-radius:12px;padding:12px 14px;outline:none;min-height:46px}.search:focus,input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(183,243,107,.12)}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.tool-card{min-height:138px;border:1px solid var(--line);background:var(--surface);border-radius:17px;padding:19px;display:flex;flex-direction:column;align-items:flex-start}.tool-card:hover{border-color:var(--accent);background:var(--surface2)}.tool-card .icon{font-size:23px;margin-bottom:19px}.tool-card strong{font-size:17px}.tool-card small{color:var(--muted);margin-top:5px}.category{font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);margin-top:auto;padding-top:12px}.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}.method-grid article{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:18px}.method-grid strong{display:block;margin-bottom:6px}.method-grid span,.content p,.content li{color:var(--muted)}.site-footer{max-width:var(--max);margin:0 auto;padding:28px 24px 48px;color:var(--muted);display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);font-size:13px}.breadcrumb{color:var(--muted);font-size:13px;padding-bottom:0}.breadcrumb a:hover{color:var(--text)}.calc-hero{padding-top:26px;padding-bottom:32px}.calc-hero h1{font-size:clamp(38px,6vw,66px);line-height:1;letter-spacing:-.052em;margin:10px 0 14px}.calc-hero p{max-width:800px;color:var(--muted);font-size:17px}.calc-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px;align-items:start}.calculator-panel{border:1px solid var(--line);background:var(--surface);border-radius:22px;padding:28px}.panel-head h2{font-size:28px;letter-spacing:-.035em;margin:5px 0}.panel-head p{color:var(--muted);margin:0}.form-grid{margin-top:24px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:end}.field{min-width:0}.field.wide{grid-column:1/-1}.field label{display:block;font-size:13px;font-weight:750;margin-bottom:6px}.field label small{color:var(--muted);font-weight:500}.input-unit{display:flex;align-items:center;border:1px solid var(--line);background:var(--bg);border-radius:11px;overflow:hidden}.input-unit:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(183,243,107,.12)}input,select{width:100%;min-width:0;border:1px solid var(--line);background:var(--bg);color:var(--text);border-radius:11px;padding:12px 13px;min-height:46px;outline:none;font-size:16px}.input-unit input{border:0;border-radius:0;box-shadow:none!important}.input-unit span{padding:0 12px;color:var(--muted);font-size:13px;white-space:nowrap}.mode-switch{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.mode{border:1px solid var(--line);background:transparent;border-radius:10px;padding:10px 13px;cursor:pointer}.mode.active{background:var(--accent);color:var(--accentInk);border-color:var(--accent);font-weight:800}.actions{grid-column:1/-1;display:flex;gap:10px;flex-wrap:wrap}.form-error{grid-column:1/-1;color:var(--danger);font-size:13px;margin:0}.results-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}.results-grid.two{grid-template-columns:repeat(2,1fr)}.result-card{border:1px solid var(--line);background:var(--bg);border-radius:16px;padding:18px;min-width:0}.result-card.featured{border-color:#4b5f50}.result-card span{display:block;color:var(--muted);font-size:12px;margin-bottom:9px}.result-card strong{font-size:32px;line-height:1;letter-spacing:-.04em;overflow-wrap:anywhere}.result-card small{margin-left:4px;color:var(--muted)}.table-card{margin-top:16px;border:1px solid var(--line);background:var(--bg);border-radius:16px;padding:18px}.table-card h3,.table-card h4{margin:0 0 10px}.table-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;min-width:520px}th,td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line);font-size:13px}th{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:11px}tbody tr:last-child td{border-bottom:0}.method-note{margin-top:16px;border-left:3px solid var(--accent);padding:12px 14px;background:var(--bg);color:var(--muted);font-size:13px}.side-card{border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:18px;position:sticky;top:16px}.side-card h3{margin:0 0 12px;font-size:16px}.related-list{display:grid;gap:8px}.related-list a{border:1px solid var(--line);border-radius:11px;padding:11px 12px;font-size:13px}.related-list a:hover{border-color:var(--accent)}.content{max-width:820px}.content h2{font-size:32px;margin-top:46px}.content h3{font-size:21px;margin-top:30px}.content p{font-size:16px}.content ul{padding-left:22px}.formula{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:17px 18px;margin:18px 0;font-weight:750;overflow-wrap:anywhere}.faq{display:grid;gap:10px;margin-top:20px}.faq details{border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:14px 16px}.faq summary{cursor:pointer;font-weight:750}.faq p{margin-bottom:0}.source-list{font-size:13px;color:var(--muted)}.source-list a{text-decoration:underline;text-underline-offset:3px}.source-list a:hover{color:var(--text)}.kpi-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}.kpi{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:16px}.kpi strong{font-size:24px;display:block}.kpi span{font-size:12px;color:var(--muted)}.hidden{display:none!important}
@media(max-width:900px){.hero{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(2,1fr)}.method-grid{grid-template-columns:repeat(2,1fr)}.calc-layout{grid-template-columns:1fr}.side-card{position:static}.form-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.site-header{padding:16px}.top-nav{display:none}.section-wrap{padding:48px 16px}.hero{padding-top:50px}.hero h1{font-size:48px}.section-heading{align-items:stretch;flex-direction:column}.search{width:100%}.tool-grid{grid-template-columns:1fr}.calculator-panel{padding:18px}.form-grid{grid-template-columns:1fr}.results-grid,.results-grid.two,.kpi-row{grid-template-columns:1fr}.method-grid{grid-template-columns:1fr}.site-footer{padding-left:16px;padding-right:16px;flex-direction:column}.calc-hero{padding-top:20px}.calc-hero h1{font-size:42px}}

.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.trust-strip{padding-top:0;padding-bottom:18px;display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px}.trust-strip div{display:flex;align-items:center;gap:8px}.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block}.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin:-4px 0 18px}.filter-chip{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:999px;padding:8px 12px;cursor:pointer;font-size:13px}.filter-chip:hover{color:var(--text);border-color:#46544d}.filter-chip.active{background:var(--accent);border-color:var(--accent);color:var(--accentInk);font-weight:800}.empty-tools{color:var(--muted);padding:24px 0}.cta-band{border:1px solid var(--line);background:linear-gradient(135deg,var(--surface),#121c16);border-radius:22px;padding:28px;display:flex;justify-content:space-between;gap:26px;align-items:center}.cta-band h2{font-size:clamp(28px,4vw,44px);letter-spacing:-.04em;margin:5px 0 8px}.cta-band p{color:var(--muted);margin:0;max-width:760px}.footer-links{display:flex;gap:14px}.footer-links a:hover{color:var(--text)}@media(max-width:620px){.cta-band{align-items:flex-start;flex-direction:column}.trust-strip{gap:11px 18px}.footer-links{gap:16px}}

.header-actions{display:flex;align-items:center;gap:22px}.lang-switch{display:flex;align-items:center;gap:7px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:5px 8px;font-size:11px;font-weight:800;color:var(--muted)}.lang-switch a{padding:2px 4px;border-radius:999px}.lang-switch a:hover{color:var(--text)}.lang-switch a.active{color:var(--accent)}.lang-switch span{opacity:.5}.language-gate{min-height:72vh;display:grid;place-items:center;text-align:center}.language-gate-card{max-width:560px;border:1px solid var(--line);background:var(--surface);border-radius:22px;padding:34px}.language-gate-card h1{font-size:42px;letter-spacing:-.045em;margin:12px 0}.language-options{display:flex;justify-content:center;gap:10px;margin-top:24px;flex-wrap:wrap}@media(max-width:620px){.header-actions{gap:10px}.lang-switch{font-size:11px}.site-header{gap:10px}}


/* Analytics consent */
.consent-banner{position:fixed;z-index:1000;left:18px;right:18px;bottom:18px;max-width:880px;margin:0 auto;border:1px solid var(--line);background:rgba(17,23,20,.98);box-shadow:0 18px 60px rgba(0,0,0,.38);border-radius:18px;padding:18px;display:flex;align-items:center;justify-content:space-between;gap:22px;backdrop-filter:blur(12px)}
.consent-copy{max-width:620px}.consent-copy strong{display:block;font-size:16px}.consent-copy p{margin:5px 0 4px;color:var(--muted);font-size:13px}.consent-copy a{font-size:12px;text-decoration:underline;text-underline-offset:3px;color:var(--accent)}.consent-actions{display:flex;gap:8px;flex-shrink:0}.cookie-settings-link{border:0;background:transparent;color:var(--muted);padding:0;cursor:pointer;font:inherit;font-size:13px}.cookie-settings-link:hover{color:var(--text)}
@media(max-width:700px){.consent-banner{left:10px;right:10px;bottom:10px;align-items:stretch;flex-direction:column}.consent-actions{width:100%}.consent-actions .button{flex:1}}