:root{color-scheme:light;--font-ui:"Inter Variable",system-ui,sans-serif;--canvas:#f5f7f9;--surface:#fff;--surface-soft:#eef1f4;--surface-hover:#f6f8fa;--ink:#17272a;--muted:#52616d;--subtle:#657581;--line:#dde3e8;--line-strong:#bdcad3;--primary:#087f83;--primary-hover:#066e73;--primary-ink:#fff;--primary-rim:#05595d;--accent:#a4ddd8;--accent-ink:#183b3e;--tint:#eff3f5;--tint-line:#c9d5de;--rail:#16252b;--rail-text:#c2ced4;--rail-muted:#a0b0b9;--result-bg:#192d35;--result-text:#f5f8f9;--result-muted:#c2d0d6;--result-line:#3a505a;--result-accent:#99e4d8;--card-rim:#d4dde3;--shadow:0 5px 0 var(--card-rim),0 9px 14px #18232b08;--shadow-hover:0 7px 0 var(--card-rim),0 13px 22px #18232b10;--button-shadow:0 3px 0 var(--primary-rim),inset 0 1px 0 #ffffff20;--focus:#087f83;--error:#b33732;--error-bg:#fff0ed;--warning:#795614;--warning-bg:#fff7dc;--overlay:#10232d80;--radius:16px;--rail-width:136px;--result-action:var(--result-accent);font-family:Inter Variable,system-ui,sans-serif}:root[data-palette=brown]{--font-ui:"Onest Variable",system-ui,sans-serif;--canvas:#f7f3eb;--surface:#fffdf8;--surface-soft:#f0ebe4;--surface-hover:#faf5ee;--ink:#29231f;--muted:#6a5b50;--subtle:#7c685b;--line:#e4d9cc;--line-strong:#ccb9a4;--primary:#a8482e;--primary-hover:#913c27;--primary-ink:#fff;--primary-rim:#75311f;--accent:#a8482e;--accent-ink:#fff;--tint:#f3eee7;--tint-line:#ddd1c3;--rail:#292624;--rail-text:#d7d0c8;--rail-muted:#b5aba1;--result-bg:#eee8df;--result-text:#29231f;--result-muted:#6a5b50;--result-line:#d8cbbf;--result-accent:#29231f;--card-rim:#ddd5ca;--shadow:0 5px 0 var(--card-rim),0 9px 14px #442c1b08;--shadow-hover:0 7px 0 var(--card-rim),0 13px 22px #442c1b10;--focus:#a8482e;--overlay:#2c201880;--result-action:var(--primary)}:root[data-palette=blue]{--canvas:#f4f3ef;--surface:#fff;--surface-soft:#faf9f6;--surface-hover:#f5f7f9;--ink:#1a1a18;--muted:#5d6268;--subtle:#68737d;--line:#e2dfd9;--line-strong:#d3d1c7;--primary:#0c447c;--primary-hover:#08345f;--primary-ink:#fff;--primary-rim:#08345f;--accent:#0c447c;--accent-ink:#fff;--tint:#edf6fc;--tint-line:#a9cbe5;--rail:#102d4e;--rail-text:#d6e4f1;--rail-muted:#adc3d5;--result-bg:#163958;--result-text:#f5f9fd;--result-muted:#c5d8e8;--result-line:#3b617f;--result-accent:#a3cff1;--card-rim:#d8d5cf;--shadow:0 5px 0 var(--card-rim),0 9px 14px #0c447c0a;--shadow-hover:0 7px 0 var(--card-rim),0 13px 22px #0c447c14;--focus:#2f7fc5;--overlay:#0b244080;--result-action:var(--result-accent)}:root[data-mode=dark]{color-scheme:dark;--canvas:#1b2228;--surface:#252d34;--surface-soft:#303941;--surface-hover:#2b353d;--ink:#eef2f5;--muted:#b8c1c9;--subtle:#a5b1bc;--line:#414b55;--line-strong:#62727f;--primary:#9aded6;--primary-hover:#b2ebe4;--primary-ink:#18393c;--primary-rim:#4c807f;--accent:#9aded6;--accent-ink:#18393c;--tint:#2d3740;--tint-line:#536571;--rail:#141c22;--rail-text:#c4cfd6;--rail-muted:#9eb0bc;--result-bg:#16242c;--result-text:#f2f6f8;--result-muted:#b9cad4;--result-line:#3d535f;--result-accent:#a1e1d9;--card-rim:#121a20;--shadow:0 5px 0 var(--card-rim),0 9px 14px #00000012;--shadow-hover:0 7px 0 var(--card-rim),0 13px 22px #00000020;--focus:#a1e1d9;--error:#ffa59d;--error-bg:#482a26;--warning:#f1ce83;--warning-bg:#3c3523;--overlay:#081118b8}:root[data-palette=brown][data-mode=dark]{--canvas:#1e1d1c;--surface:#282624;--surface-soft:#312e2b;--surface-hover:#302d2a;--ink:#f3eee8;--muted:#c4bab1;--subtle:#bbaea2;--line:#49433e;--line-strong:#776b61;--primary:#e7ac8e;--primary-hover:#f1c1a6;--primary-ink:#382119;--primary-rim:#8e654f;--accent:#e7ac8e;--accent-ink:#44271c;--tint:#332e2a;--tint-line:#68574b;--rail:#171615;--rail-text:#d9d0c8;--rail-muted:#b5a698;--result-bg:#23211f;--result-text:#f7f1eb;--result-muted:#c7b9ac;--result-line:#49433e;--result-accent:#e7ac8e;--card-rim:#121110;--focus:#e7ac8e;--overlay:#120a05b8}:root[data-palette=blue][data-mode=dark]{--canvas:#14181d;--surface:#1c2128;--surface-soft:#20262e;--surface-hover:#252d37;--ink:#e8e6e1;--muted:#b5b8bd;--subtle:#a3a9b0;--line:#2c333c;--line-strong:#3a424d;--primary:#7fb4e8;--primary-hover:#a3cff1;--primary-ink:#12253a;--primary-rim:#426e98;--accent:#7fb4e8;--accent-ink:#12253a;--tint:#172938;--tint-line:#345a78;--rail:#0b1624;--rail-text:#d2dfec;--rail-muted:#a0b4c6;--result-bg:#10243b;--result-text:#f2f6fa;--result-muted:#bbcfdf;--result-line:#3b5973;--result-accent:#a3cff1;--card-rim:#0d1218;--shadow:0 5px 0 var(--card-rim),0 9px 14px #00000018;--shadow-hover:0 7px 0 var(--card-rim),0 13px 22px #00000028;--focus:#7fb4e8;--overlay:#081323b8;--result-action:var(--result-accent)}:root[data-palette=green][data-mode=light]{--result-bg:#eaf2f0;--result-text:#17272a;--result-muted:#52616d;--result-line:#c9dad7;--result-accent:#17272a;--result-action:var(--primary)}:root[data-palette=blue][data-mode=light]{--result-bg:#eaf0f6;--result-text:#1a2734;--result-muted:#5d6268;--result-line:#cbd8e5;--result-accent:#1a2734;--result-action:var(--primary)}*{box-sizing:border-box}html{scroll-behavior:smooth;min-width:320px}body{color:var(--ink);background:var(--canvas);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.6}button,input,textarea,select{font:inherit}button,a,input,textarea,select,summary{-webkit-tap-highlight-color:transparent;outline-offset:4px}button{cursor:pointer;touch-action:manipulation}button:disabled,input:disabled{cursor:not-allowed;opacity:.55}button:disabled{box-shadow:none;transform:none}:focus-visible{outline:3px solid var(--focus)}a{color:var(--primary);text-underline-offset:.2em}::selection{background:var(--accent);color:var(--accent-ink)}svg{vertical-align:middle;flex-shrink:0}svg,img{max-width:100%}h1,h2,h3,p{margin:0}h1,h2,h3{overflow-wrap:anywhere;letter-spacing:-.035em;line-height:1.25}h1{font-size:clamp(32px,3.8vw,44px);font-weight:700}h2{font-size:24px;font-weight:650}h3{font-size:19px;font-weight:650}p{color:var(--muted)}[hidden]{display:none!important}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:100;background:var(--surface);color:var(--ink);border:2px solid var(--focus);border-radius:10px;padding:12px 18px;position:fixed;top:10px;left:10px;transform:translateY(-180%)}.skip-link:focus{transform:none}.app-shell{grid-template-columns:var(--rail-width) minmax(0, 1fr);min-height:100dvh;display:grid}.sidebar{background:var(--rail);min-width:0;min-height:100dvh;color:var(--rail-text);flex-direction:column;align-self:start;align-items:center;gap:26px;padding:24px 10px;display:flex;position:sticky;top:0}.sidebar .brand{width:54px;min-height:54px;color:var(--accent);border:1px solid #ffffff25;border-radius:16px;place-items:center;padding:8px;display:grid;box-shadow:0 4px #00000035}.sidebar .brand-mark{color:inherit}:root[data-palette=blue] .sidebar .brand{color:var(--rail-text)}.sidebar .brand-wordmark,.mobile-navigation{display:none}.sidebar-nav{gap:10px;width:100%;display:grid}.sidebar-nav a{min-height:65px;color:var(--rail-text);text-align:center;overflow-wrap:anywhere;border:1px solid #0000;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:7px;padding:10px 5px;font-size:11px;font-weight:550;line-height:1.3;text-decoration:none;display:flex}.sidebar-nav svg{width:24px;height:24px}.sidebar-nav a[aria-current]{color:var(--accent-ink);background:var(--accent);border-color:#ffffff25;font-weight:700;box-shadow:0 4px #00000030,inset 0 1px #ffffff30}.sidebar-footer{width:100%;color:var(--rail-text);text-align:center;justify-content:center;align-items:center;margin-top:auto;padding:16px 0;line-height:1.2;display:flex}.sidebar-owner-name{min-width:0;color:inherit;letter-spacing:-.01em;white-space:nowrap;text-transform:uppercase;font-size:11.5px;font-weight:650}.sidebar-footer a,.sidebar-footer p{color:inherit}.sidebar :focus-visible{outline-color:var(--accent)}.main-area{min-width:0}.brand{min-height:44px;color:var(--ink);white-space:nowrap;align-items:center;gap:10px;text-decoration:none;display:inline-flex}.brand-mark{width:36px;height:36px;color:var(--primary)}.brand-wordmark{letter-spacing:-.035em;font-family:Onest Variable,system-ui,sans-serif;font-size:28px;font-weight:650;line-height:1.2}.brand-suffix{color:var(--primary)}.topbar{background:var(--surface);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:16px 24px;min-height:101px;padding:20px 36px;display:flex}.language-switch{flex-wrap:wrap;align-items:center;gap:3px;margin-left:auto;display:flex}.language-switch a{min-width:44px;min-height:44px;color:var(--muted);border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;padding:8px;font-size:12px;font-weight:550;text-decoration:none;display:inline-flex}.language-switch a[aria-current]{color:var(--ink);background:var(--tint);border-color:var(--tint-line);font-weight:700}.appearance-controls{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.appearance-controls>div,.appearance-controls>fieldset{border:1px solid var(--line-strong);background:var(--surface-soft);border-radius:12px;flex-wrap:wrap;gap:2px;margin:0;padding:4px;display:flex;box-shadow:inset 0 2px 4px #00000012}.appearance-controls button{border:1px solid var(--line);min-width:44px;min-height:44px;color:var(--muted);background:var(--surface-soft);border-radius:8px;padding:8px 11px;font-size:12px;line-height:1.3}.appearance-controls button[aria-pressed=true]{color:var(--ink);background:var(--surface);border-color:var(--line-strong);box-shadow:0 2px 0 var(--card-rim);font-weight:700}.page-content{width:100%;max-width:1360px;margin:0 auto;padding:28px 36px 40px}.breadcrumb,.breadcrumb ol{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 24px;padding:0;font-size:12px;list-style:none;display:flex}.breadcrumb ol{margin:0}.breadcrumb a{color:inherit}.breadcrumb [aria-current]{color:var(--ink)}.page-heading{margin-bottom:30px}.category-guide-link{margin-top:14px;font-size:14px}.guide-context-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 24px;margin-bottom:24px;display:flex}.guide-context-row .breadcrumb{flex:340px;margin:0}.guide-calculator-link{min-height:32px;color:var(--primary);white-space:nowrap;align-items:center;gap:7px;padding:4px 0;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.guide-calculator-link:hover{text-decoration:underline}.lede{max-width:760px;margin-top:15px;font-size:16px;line-height:1.7}.category-grid,.tool-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;display:grid}.science-category-group+.science-category-group{margin-top:48px}.science-category-group>h2{margin-bottom:18px}.category-card,.tool-card{min-width:0;min-height:230px;color:var(--ink);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow), inset 0 1px 0 #ffffff16;border-radius:18px;flex-direction:column;gap:15px;padding:25px;text-decoration:none;transition:transform .14s,border-color .14s,background .14s,box-shadow .14s;display:flex}.tool-card{background:linear-gradient(145deg, var(--surface) 0%, var(--surface) 80%, var(--tint) 100%);min-height:172px;padding:22px 58px 22px 22px;position:relative;overflow:hidden}.tool-card .card-icon{border-radius:13px;width:48px;min-height:48px}.tool-card .card-icon svg{stroke-width:1.55px;width:25px;height:25px}.tool-card h2,.tool-card h3{font-size:18px;line-height:1.3}.tool-card .card-icon,.tool-card h2,.tool-card h3{transform-origin:0;transition:transform .16s}.tool-link-arrow{width:31px;height:31px;color:var(--primary);background:var(--surface-soft);border:1px solid var(--line);border-radius:50%;place-items:center;font-size:18px;font-weight:700;line-height:1;transition:transform .15s,color .15s,background .15s,border-color .15s;display:grid;position:absolute;bottom:19px;right:19px}.category-card:first-child{background:var(--tint);border-color:var(--tint-line)}.category-card h2,.tool-card h2,.related-calculators .tool-card h3{font-size:22px}.category-card p,.tool-card p{font-size:14px;line-height:1.65}.card-icon{width:54px;min-height:54px;color:var(--primary);background:var(--tint);border:1px solid var(--tint-line);box-shadow:0 3px 0 var(--card-rim);border-radius:14px;place-items:center;font-size:28px;display:grid}.card-icon svg{width:28px;height:28px}.card-meta{color:var(--primary);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-top:auto;padding-top:5px;font-size:12px;font-weight:600;display:flex}.badge{border:1px solid var(--tint-line);width:fit-content;max-width:100%;color:var(--primary);background:var(--tint);border-radius:7px;align-items:center;padding:5px 9px;font-size:11px;font-weight:600;line-height:1.4;display:inline-flex}.site-notice{color:var(--muted);background:var(--tint);border:1px solid var(--tint-line);border-radius:12px;margin:0 0 26px;padding:14px 18px;font-size:14px}.site-notice p{color:inherit}.contact-intro{background:var(--tint);border:1px solid var(--tint-line);border-radius:var(--radius);padding:25px 28px}.contact-intro h2{margin:0 0 12px}.contact-intro>p{max-width:62ch;font-size:16px;line-height:1.6}.contact-tips{color:var(--muted);margin:20px 0 0;padding-left:24px;font-size:16px;line-height:1.6}.contact-tips li{padding-left:4px}.contact-tips li::marker{color:var(--primary);font-size:1.15em}.contact-tips li+li{margin-top:9px}.contact-intro~.calc-form{margin-top:30px}.required-mark{color:var(--primary);font-weight:750}.contact-honeypot{clip-path:inset(50%);pointer-events:none;width:1px;height:1px;position:absolute;overflow:hidden}.calculator-layout{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:start;gap:28px;display:grid}.calculator-layout>*{min-width:0}.calc-form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;gap:24px;min-width:0;padding:29px;display:flex}.field{min-width:0}fieldset.field{border:0;margin:0;padding:0}.field-label,.field>label,.field>legend{color:var(--ink);margin-bottom:9px;font-size:14px;font-weight:600;display:block}.field-input{width:100%;min-width:0;min-height:50px;color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);font-variant-numeric:tabular-nums;border-radius:10px;padding:11px 14px;font-size:18px;display:block}.calc-form select.field-input{-webkit-appearance:none;appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='m4 6 4 4 4-4' stroke='%2317272a' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-position:right 13px center;background-repeat:no-repeat;background-size:16px 16px;padding-right:38px}:root[data-mode=dark] .calc-form select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='m4 6 4 4 4-4' stroke='%23eef2f5' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}.field-input:is([inputmode=decimal],[inputmode=numeric]){height:42px;min-height:42px;padding-block:7px;font-size:16px}.dotted-date-control{align-items:center;width:min(160px,100%);min-width:0;display:flex;position:relative}.dotted-date-control .field-input{letter-spacing:0;width:100%;height:38px;min-height:38px;padding:7px 36px 7px 10px;font-size:15px;font-weight:500}.date-calendar-button{width:34px;height:34px;color:var(--primary);cursor:pointer;background:0 0;border:0;border-radius:7px;place-items:center;padding:6px;display:grid;position:absolute;top:2px;right:3px}.date-calendar-button:hover{background:var(--surface-soft)}.date-calendar-button svg{width:20px;height:20px}.date-calendar-button:focus-visible{outline:3px solid var(--focus);outline-offset:1px}.date-native-picker{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute;bottom:0;right:6px}.field-input[aria-invalid=true]{border-color:var(--error);border-width:2px}.field-input::placeholder{color:var(--subtle);opacity:1}.field-unit{color:var(--muted);font-size:13px}.field-error{color:var(--error);margin-top:8px;font-size:13px}.field-hint{margin-top:8px;font-size:13px;line-height:1.6}.segmented{flex-wrap:wrap;gap:9px;min-width:0;display:flex}.segmented button{border:1px solid var(--line);min-height:48px;color:var(--muted);background:var(--surface-soft);box-shadow:0 3px 0 var(--card-rim);border-radius:10px;flex:130px;justify-content:center;align-items:center;gap:8px;padding:11px 12px;font-size:13px;line-height:1.4;display:inline-flex}.segmented button[aria-pressed=true]{color:var(--primary-ink);background:var(--primary);border-color:var(--primary-rim);font-weight:650;box-shadow:inset 0 1px 2px #00000012}.calculate-button,.primary-button,.secondary-button{border:1px solid var(--primary-rim);min-height:48px;color:var(--primary-ink);background:var(--primary);box-shadow:var(--button-shadow);text-align:center;border-radius:11px;justify-content:center;align-items:center;gap:9px;padding:12px 18px;font-size:15px;font-weight:650;line-height:1.4;text-decoration:none;transition:background .14s,transform .14s,box-shadow .14s;display:inline-flex}.calculate-button{width:100%;margin-top:2px;font-size:18px}.secondary-button{color:var(--ink);background:var(--surface);border-color:var(--line-strong);box-shadow:0 3px 0 var(--card-rim), inset 0 1px 0 #ffffff15}.result-card{min-width:0;color:var(--result-text);background:var(--result-bg);border:1px solid var(--result-line);border-radius:var(--radius);box-shadow:0 5px 0 var(--card-rim);padding:30px;position:sticky;top:24px}.result-label{color:var(--result-muted);letter-spacing:0;font-size:18px;font-weight:500}.result-value{color:var(--result-accent);letter-spacing:-.045em;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;margin-top:16px;font-size:clamp(32px,4vw,64px);font-weight:650;line-height:1.2}.result-card>p,.result-card #result-state:not(.stale-notice){color:var(--result-muted)}.result-card a{color:var(--result-accent)}.result-breakdown{border-top:1px solid var(--result-line);border-bottom:1px solid var(--result-line);gap:17px;margin:26px 0 0;padding:22px 0;font-size:15px;display:grid}.result-breakdown>div{min-width:0}.result-breakdown dt{color:var(--result-muted)}.result-breakdown dd{color:var(--result-text);overflow-wrap:anywhere;font-variant-numeric:tabular-nums;margin:5px 0 0;font-weight:550}.contact-operator-card h2{margin-bottom:0}.operator-name{color:var(--result-text);margin-top:13px;font-size:21px;line-height:1.25;display:block}.contact-operator-card .result-breakdown a{text-decoration:none}.result-actions{flex-wrap:wrap;gap:12px;margin-top:24px;display:flex}.result-actions>*{flex:110px}.result-card .result-actions .secondary-button{color:var(--result-text);border-color:var(--result-line);background:0 0;box-shadow:0 3px #00000024}.result-card :focus-visible{outline-color:var(--result-accent)}.stale-notice{background:var(--warning-bg);border:1px solid;border-radius:10px;margin-top:20px;padding:12px 14px;font-size:13px;line-height:1.5;color:var(--warning)!important}.methodology,.article{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin-top:30px;padding:28px}.article{max-width:900px}.contact-article{background:0 0;border:0;max-width:none;margin-top:0;padding:0}.methodology>*+*,.article>*+*{margin-top:18px}.methodology section+section,.article section+section{border-top:1px solid var(--line);margin-top:28px;padding-top:26px}.methodology h2,.article h2{margin-bottom:14px}.methodology p+p,.article p+p{margin-top:14px}.methodology li,.article li{color:var(--muted)}.methodology li+li,.article li+li{margin-top:9px}.methodology code,.article code{overflow-wrap:anywhere}.methodology-link{margin-top:20px;display:inline-block}.sources{padding-left:22px}.methodology>.sources{padding-left:0}.sources li+li{margin-top:14px}.sources a{overflow-wrap:anywhere}:is(.article,.methodology)>.page-heading{margin-bottom:20px}:is(.article,.methodology) h3{margin-top:24px;margin-bottom:12px}:is(.article,.methodology) p,:is(.article,.methodology) li{color:var(--ink)}:is(.article,.methodology) p+p{margin-top:18px}:is(.article,.methodology) p+:is(ul,ol,dl),:is(.article,.methodology) :is(ul,ol,dl)+p{margin-top:16px}:is(.article,.methodology) section.sources{padding-left:0}:is(.article,.methodology) section.sources>ul{flex-wrap:wrap;gap:10px 24px;padding-left:0;list-style:none;display:flex}:is(.article,.methodology) section.sources>ul>li{margin-top:0}.footer{border-top:1px solid var(--line);max-width:none;color:var(--muted);flex-direction:column;align-items:stretch;gap:16px;margin:34px 0 0;padding:25px 0 32px;font-size:13px;display:flex}.footer-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px 24px;display:flex}.footer-top>nav{flex:560px}.footer-top>#appearance-settings{flex:0 390px}.footer nav{flex-wrap:wrap;align-items:center;gap:8px 24px;display:flex}.footer a{min-height:44px;color:var(--muted);align-items:center;display:inline-flex}.footer-top>nav>:is(a,.footer-settings-link){min-height:44px;color:var(--muted);font:inherit;align-items:center;padding:0;font-size:14px;font-weight:550;line-height:1.3;text-decoration:none;display:inline-flex}.footer-settings-link{box-shadow:none;cursor:pointer;background:0 0;border:0}.footer-top>nav>:is(a,.footer-settings-link):is(:hover,:focus-visible){color:var(--primary);text-decoration:underline;text-decoration-color:var(--primary);text-underline-offset:5px;text-decoration-thickness:2px}.footer-settings-link:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:3px}#appearance-settings{background:var(--surface-soft);border:1px solid var(--line);border-radius:12px;width:min(100%,390px);padding:10px 12px}.appearance-setting-row{align-items:center;gap:9px;display:flex}.appearance-setting{min-width:0;min-height:32px;color:var(--ink);cursor:pointer;flex:auto;align-items:center;gap:10px;font-size:13px;font-weight:650;line-height:1.3;display:flex}.appearance-switch{flex:0 0 48px;width:48px;height:28px;position:relative}.appearance-switch input{z-index:1;opacity:0;width:100%;height:100%;cursor:inherit;margin:0;position:absolute;inset:0}.appearance-switch-track{background:var(--line-strong);border:1px solid var(--line-strong);width:100%;height:100%;box-shadow:inset 0 2px 4px #0000001c, 0 2px 0 var(--card-rim);border-radius:999px;transition:background .16s,border-color .16s;display:block}.appearance-switch-track:before{content:"";background:var(--ink);border-radius:50%;width:20px;height:20px;transition:transform .16s,background .16s;position:absolute;top:3px;left:3px;box-shadow:0 2px 5px #00000038}.appearance-switch input:checked+.appearance-switch-track{background:var(--primary);border-color:var(--primary-rim)}.appearance-switch input:checked+.appearance-switch-track:before{background:var(--primary-ink);transform:translate(20px)}.appearance-switch input:focus-visible+.appearance-switch-track{outline:3px solid var(--focus);outline-offset:3px}.appearance-switch input:disabled+.appearance-switch-track{opacity:.55}.appearance-info{flex:none;position:relative}.appearance-info-button{width:26px;height:26px;color:var(--muted);background:var(--surface);border:1px solid var(--line-strong);cursor:help;border-radius:50%;place-items:center;padding:0;font:700 13px/1 Georgia,serif;display:grid}.appearance-info-button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.appearance-info-tooltip{z-index:20;width:min(280px,100vw - 32px);color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);box-shadow:var(--shadow);opacity:0;visibility:hidden;border-radius:9px;padding:10px 12px;font-size:12px;font-weight:450;line-height:1.45;transition:opacity .12s,transform .12s,visibility .12s;position:absolute;bottom:calc(100% + 9px);right:0;transform:translateY(4px)}.appearance-info:hover .appearance-info-tooltip,.appearance-info:focus-within .appearance-info-tooltip{opacity:1;visibility:visible;transform:none}#appearance-settings>#appearance-status{margin:7px 0 0 58px;font-size:12px;line-height:1.4}#appearance-status:empty{display:none}dialog{width:min(560px,100vw - 32px);max-height:calc(100dvh - 32px);color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);border-radius:16px;padding:28px;box-shadow:0 24px 80px #00000035}dialog::backdrop{background:var(--overlay)}dialog h2{margin-bottom:16px}dialog p+p{margin-top:12px}dialog textarea{resize:vertical;width:100%;min-height:200px;color:var(--ink);background:var(--surface-soft);border:1px solid var(--line-strong);border-radius:10px;margin-top:18px;padding:12px;display:block}.modal-actions{flex-wrap:wrap;justify-content:flex-end;gap:12px;margin-top:24px;display:flex}.modal-actions>*{flex:0 auto}.print-report{display:none}@media (hover:hover){.category-card[href]:hover,.tool-card[href]:hover{border-color:var(--line-strong);background:var(--surface-hover);box-shadow:var(--shadow-hover);transform:translateY(-2px)}.tool-card[href]:hover .card-icon,.tool-card[href]:hover h2,.tool-card[href]:hover h3{transform:scale(1.03)}.tool-card[href]:hover .tool-link-arrow{color:var(--primary-ink);background:var(--primary);border-color:var(--primary-rim);transform:translate(3px)}.sidebar-nav a:hover{background:#ffffff0c}.sidebar-nav a[aria-current]:hover{background:var(--accent)}.language-switch a:hover{background:var(--surface-soft);color:var(--ink)}.primary-button:hover,.calculate-button:hover{background:var(--primary-hover)}.secondary-button:hover{border-color:var(--primary)}}button:not(:disabled):active,.primary-button:active,.secondary-button:active{box-shadow:none;transform:translateY(2px)}@media (width<=1280px){.calculator-layout{grid-template-columns:minmax(0,1fr)}.result-card{position:static}}@media (width<=1150px){.category-grid,.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topbar{gap:14px}.appearance-controls{flex-basis:100%;justify-content:flex-end}}@media (width<=980px){.calculator-layout{grid-template-columns:minmax(0,1fr)}.result-card{position:static}.page-content,.topbar{padding-inline:24px}.footer{margin-inline:0}}@media (width<=760px){.app-shell{display:block}.sidebar{display:none}.mobile-navigation{background:var(--rail);scrollbar-width:thin;scroll-snap-type:x proximity;overscroll-behavior-inline:contain;gap:7px;padding:8px 16px 10px;display:flex;position:relative;overflow-x:auto}.mobile-navigation a{min-height:66px;color:var(--rail-text);text-align:center;scroll-snap-align:start;border:1px solid #0000;border-radius:10px;flex-direction:column;flex:0 0 108px;justify-content:center;align-items:center;gap:3px;padding:5px;font-size:11px;font-weight:600;line-height:1.15;text-decoration:none;display:flex}.mobile-navigation svg{width:20px;height:20px}.mobile-navigation a[aria-current]{color:var(--accent-ink);background:var(--accent);font-weight:700}.mobile-navigation a:focus-visible{outline:3px solid var(--accent);outline-offset:-3px}.sidebar{min-height:0;padding:12px 16px 16px;display:block;position:static}.sidebar>.brand,.sidebar-footer{display:none}.sidebar-nav{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.sidebar-nav a{min-height:60px;padding:8px 5px;font-size:11px}.sidebar-nav svg{width:20px;height:20px}.topbar{padding:18px 20px}.page-content{padding:24px 20px 32px}.footer{margin-inline:0}.appearance-controls{justify-content:flex-start}.brand-wordmark{font-size:26px}.brand-mark{width:34px;height:34px}.lede{font-size:15px}.category-grid,.tool-grid{gap:21px}.result-value{font-size:clamp(34px,7vw,56px)}}@media (width<=520px){.topbar{gap:12px;padding:16px}.language-switch{flex-basis:100%;margin-left:0}.appearance-controls{gap:8px}.appearance-controls button{padding-inline:9px;font-size:11px}.page-content{padding:22px 16px 30px}.page-heading{margin-bottom:24px}.category-grid,.tool-grid{grid-template-columns:minmax(0,1fr)}.category-card,.tool-card{min-height:215px;padding:24px}.tool-card{min-height:150px;padding:20px 54px 20px 20px}.calc-form,.result-card{padding:21px}.calc-form{gap:22px}.field-input{font-size:16px}.calculator-layout{gap:24px}.result-label{font-size:16px}.result-breakdown{font-size:14px}.methodology,.article{padding:22px}.contact-intro{padding:21px}.contact-intro>p,.contact-tips{font-size:15px}.contact-intro~.calc-form{margin-top:24px}.methodology h2,.article h2{font-size:22px}.footer{margin-inline:0}#appearance-settings{width:100%}dialog{padding:22px}.modal-actions>*{flex:100%}}@media (width<=359px){.sidebar{padding-inline:12px}.sidebar-nav{grid-template-columns:repeat(3,minmax(0,1fr))}.sidebar-nav a{font-size:10px}.brand{gap:8px}.brand-wordmark{font-size:24px}.calc-form,.result-card{padding:18px}.segmented button{flex-basis:100%}.result-value{font-size:32px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media print{@page{size:A4 portrait;margin:18mm}:root{color-scheme:light}html,body{min-width:0;margin:0;padding:0;color:#161f1b!important;background:#fff!important}.app-shell,dialog,.skip-link{display:none!important}.print-report{color:#161f1b;background:#fff;width:auto;margin:0;padding:0;font-size:11pt;line-height:1.5;display:block!important}.print-report h1{margin-bottom:6mm;font-size:25pt}.print-report h2{margin:8mm 0 4mm;font-size:16pt}.print-report p,.print-report dt{color:#424e47}.print-report p+p{margin-top:4mm}.print-report dl>div{break-inside:avoid;border-bottom:1px solid #d9dfda;justify-content:space-between;gap:6mm;padding:2mm 0;display:flex}.print-report dd{text-align:right;overflow-wrap:anywhere;margin:0;font-weight:600}.print-report .result-value{color:#161f1b;border:1px solid #73867b;margin:6mm 0;padding:5mm;font-size:24pt}.print-report a{color:#161f1b;text-decoration:none}.print-report pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit}}.appearance-controls .palette-button{width:44px;height:44px;box-shadow:none;background:0 0;border-color:#0000;place-items:center;padding:6px;display:grid}.appearance-controls .palette-button[aria-pressed=true]{background:var(--surface);border-color:var(--line-strong);box-shadow:0 3px 0 var(--card-rim), 0 5px 8px #00000020;transform:translateY(-1px)}.palette-swatch{color:#fff;border:1px solid #00000024;border-radius:50%;place-items:center;width:26px;height:26px;display:grid;box-shadow:inset 0 1px 1px #fff6}.swatch-green{background:#087f83}.swatch-brown{background:#a8482e}.swatch-blue{background:#0c447c}.palette-button[aria-pressed=true] .palette-swatch{box-shadow:inset 0 3px 2px #fff7,0 2px 3px #0005}.appearance-controls .theme-toggle{width:46px;height:46px;color:var(--ink);background:var(--surface);border-color:var(--line-strong);box-shadow:0 3px 0 var(--card-rim), inset 0 1px 0 #ffffff25;border-radius:12px;place-items:center;margin-left:4px;padding:10px;display:grid}.theme-toggle .theme-sun,:root[data-mode=dark] .theme-toggle .theme-moon{display:none}:root[data-mode=dark] .theme-toggle .theme-sun{display:block}.analytics-consent{background:var(--surface-soft);border:1px solid var(--line);border-radius:12px;margin:0;padding:20px}.analytics-consent h2{margin:0 0 .5rem;font-size:1.1rem}.analytics-consent p{max-width:90ch;margin:0;line-height:1.6}.footer .analytics-consent a{min-height:0;display:inline}.analytics-consent .result-actions{flex-wrap:wrap;gap:12px;margin-top:16px;display:flex}.analytics-consent .result-actions>button{flex:0 auto;min-width:190px}.analytics-consent [data-analytics-status]:not(:empty){margin-top:12px}.analytics-consent:has([data-analytics-choices][hidden]){display:none}@media (width<=700px){.footer-top{flex-direction:column;align-items:stretch}.footer-top>nav,.footer-top>#appearance-settings{flex:none}.footer-top>#appearance-settings{width:100%}.analytics-consent{padding:16px}.analytics-consent .result-actions>button{flex:190px}}.analytics-consent [hidden],.footer-settings-link[hidden]{display:none!important}.analytics-consent[data-pending=true]{z-index:100;background:var(--surface,#fff);max-width:48rem;max-height:calc(100dvh - 2rem);margin-inline:auto;position:fixed;inset:auto 1rem 1rem;overflow-y:auto;box-shadow:0 12px 36px #0003}@media (width<=520px){.topbar{gap:8px 6px;padding:12px}.topbar>.brand{flex-basis:100%}.language-switch{flex-wrap:nowrap;flex:none;gap:0;margin-left:0}.appearance-controls{flex-wrap:nowrap;flex:none;gap:0}.appearance-controls>div{flex-wrap:nowrap}.appearance-controls .theme-toggle{width:44px;min-width:44px;margin-left:0}}@media (width<=359px){.topbar{padding-inline:10px}.language-switch a,.appearance-controls button,.appearance-controls .theme-toggle{width:37px;min-width:37px;padding-inline:4px}}@media (width<=760px){.sidebar{display:none}}@media (width<=520px){.language-switch a,.appearance-controls button,.appearance-controls .theme-toggle{width:40px;min-width:40px;padding-inline:4px}}@media (width<=359px){.language-switch a,.appearance-controls button,.appearance-controls .theme-toggle{width:35px;min-width:35px}}@media (width<=520px){.topbar{justify-content:flex-start}.language-switch a{width:37px;min-width:37px}.appearance-controls{flex:auto;justify-content:space-between;gap:10px}.appearance-controls .palette-button{width:35px;min-width:35px;height:38px;min-height:38px;padding:4px}.appearance-controls .theme-toggle{width:44px;min-width:44px}}@media (width<=359px){.language-switch a,.appearance-controls .palette-button{width:34px;min-width:34px}.appearance-controls{gap:6px}.appearance-controls .theme-toggle{width:36px;min-width:36px}}.related-calculators{margin-top:36px}.related-calculators>h2{margin-bottom:18px}