:root{--ink: #171512;--ink-2: #3a342b;--muted: #6d655b;--paper: #fbfaf6;--paper-2: #f0eee6;--line: #ded8cb;--gold: #c89420;--gold-2: #f4d35e;--green: #1f7a5b;--blue: #234e70;--red: #9f3a38;--shadow: 0 20px 55px rgba(38, 31, 20, .14);--radius: 8px;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(90deg,rgba(23,21,18,.04) 1px,transparent 1px),linear-gradient(rgba(23,21,18,.035) 1px,transparent 1px),var(--paper);background-size:38px 38px;color:var(--ink);font-family:ui-serif,Georgia,Cambria,Times New Roman,serif;line-height:1.55}a{color:inherit;text-decoration:none}p,li{color:var(--ink-2);font-size:1.02rem}button,input,select{font:inherit}.skip-link{position:absolute;left:1rem;top:-5rem;z-index:30;background:var(--ink);color:#fff;padding:.7rem 1rem}.skip-link:focus{top:1rem}.shell{width:min(1180px,calc(100% - 32px));margin-inline:auto}.narrow-shell{width:min(880px,calc(100% - 32px))}.site-header{position:sticky;top:0;z-index:20;background:#fbfaf6eb;border-bottom:1px solid rgba(23,21,18,.12);backdrop-filter:blur(14px)}.nav-shell{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:1rem}.brand{display:inline-flex;align-items:center;gap:.7rem;min-width:max-content}.brand-mark{width:42px;height:42px;display:grid;place-items:center;background:var(--ink);color:var(--gold-2);border:1px solid rgba(244,211,94,.55);border-radius:7px;font-family:ui-sans-serif,system-ui,sans-serif;font-size:.72rem;font-weight:900;letter-spacing:0}.brand strong,.brand small{display:block}.brand strong{font-size:1rem;line-height:1.1}.brand small{color:var(--muted);font-family:ui-sans-serif,system-ui,sans-serif;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em}.primary-nav{display:flex;align-items:center;gap:.2rem;font-family:ui-sans-serif,system-ui,sans-serif;font-size:.93rem;font-weight:750}.primary-nav>a,.nav-group>a{display:inline-flex;align-items:center;min-height:42px;padding:0 .8rem;border-radius:7px;color:var(--ink-2)}.primary-nav a:hover,.nav-group:hover>a{background:#c8942024;color:var(--ink)}.nav-group{position:relative}.nav-dropdown{position:absolute;right:0;top:calc(100% + .4rem);min-width:210px;padding:.4rem;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);opacity:0;transform:translateY(-4px);pointer-events:none;transition:opacity .14s ease,transform .14s ease}.nav-group:hover .nav-dropdown,.nav-group:focus-within .nav-dropdown{opacity:1;transform:translateY(0);pointer-events:auto}.nav-dropdown a{display:block;padding:.65rem .7rem;border-radius:6px;color:var(--ink-2)}.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:7px;background:#fff;padding:.55rem}.nav-toggle span{display:block;height:2px;background:var(--ink);margin:5px 0}.home-hero,.tool-hero,.guide-hero,.page-hero{padding:64px 0 42px}.home-hero-grid,.tool-hero-grid{display:grid;grid-template-columns:minmax(0,.82fr) minmax(420px,1fr);gap:36px;align-items:center}.hero-copy,.tool-intro{padding:12px 0}.eyebrow,.section-kicker{margin:0 0 .8rem;color:var(--blue);font-family:ui-sans-serif,system-ui,sans-serif;font-size:.75rem;font-weight:850;letter-spacing:.12em;text-transform:uppercase}h1,h2,h3{margin:0;color:var(--ink);line-height:1.02;letter-spacing:0}h1{font-size:clamp(2.6rem,7vw,5.8rem);max-width:860px}.tool-intro h1,.page-hero h1,.guide-hero h1{font-size:clamp(2.4rem,6vw,4.7rem)}h2{font-size:clamp(1.7rem,3.6vw,3rem)}.content-section h2,.sidebar-panel h2,.site-footer h2{font-size:1.25rem;line-height:1.18}.lead{max-width:680px;margin:1.1rem 0 0;color:var(--ink-2);font-size:clamp(1.08rem,2vw,1.35rem)}.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.6rem}.hero-asset{width:min(500px,100%);margin:1.35rem 0 0;border:1px solid rgba(23,21,18,.18);border-radius:var(--radius);overflow:hidden;background:var(--ink);box-shadow:0 16px 36px #261f1429}.hero-asset img{display:block;width:100%;height:auto}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 1rem;border-radius:7px;font-family:ui-sans-serif,system-ui,sans-serif;font-weight:850}.button.primary{background:var(--ink);color:#fff}.button.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.mini-facts{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.2rem;font-family:ui-sans-serif,system-ui,sans-serif;font-size:.86rem;color:var(--muted)}.mini-facts span{padding:.32rem .55rem;border:1px solid var(--line);background:#ffffffad;border-radius:999px}.calculator{background:#ffffffeb;border:1px solid rgba(23,21,18,.14);border-radius:var(--radius);box-shadow:var(--shadow);padding:clamp(1rem,2.4vw,1.5rem)}.calculator-compact .breakdown{display:none}.calculator-head{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;padding-bottom:1rem;border-bottom:1px solid var(--line)}.calculator-head h2{font-size:clamp(1.35rem,3vw,2rem)}.price-pill{min-width:max-content;padding:.5rem .7rem;background:#ecf7f1;color:var(--green);border:1px solid rgba(31,122,91,.2);border-radius:999px;font-family:ui-sans-serif,system-ui,sans-serif;font-size:.78rem;font-weight:850}.price-pill.neutral{background:var(--paper-2);color:var(--ink-2)}.calculator-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem;margin-top:1rem}label span{display:block;margin-bottom:.35rem;color:var(--muted);font-family:ui-sans-serif,system-ui,sans-serif;font-size:.76rem;font-weight:850;letter-spacing:.07em;text-transform:uppercase}input,select{width:100%;min-height:45px;border:1px solid var(--line);border-radius:7px;background:var(--paper);color:var(--ink);padding:0 .75rem}input:focus,select:focus,summary:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(35,78,112,.28);outline-offset:2px}.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem;margin-top:1rem}.ratio-results{grid-template-columns:repeat(3,minmax(0,1fr))}.result-card,.conversion-grid div{min-height:110px;padding:.9rem;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,#fff,#f0eee6a6)}.result-card span,.conversion-grid span{display:block;color:var(--muted);font-family:ui-sans-serif,system-ui,sans-serif;font-size:.76rem;font-weight:850;letter-spacing:.07em;text-transform:uppercase}.result-card strong,.conversion-grid strong{display:block;margin-top:.3rem;color:var(--ink);font-family:ui-sans-serif,system-ui,sans-serif;font-size:clamp(1.25rem,3vw,2rem);line-height:1.05;overflow-wrap:anywhere}.result-card small{display:block;margin-top:.35rem;color:var(--muted);font-family:ui-sans-serif,system-ui,sans-serif}.primary-result{background:linear-gradient(135deg,#171512,#3a2b12);border-color:#f4d35e73}.primary-result span,.primary-result small{color:#fff8dcbd}.primary-result strong{color:var(--gold-2)}.breakdown{margin-top:1rem}summary{cursor:pointer;color:var(--ink);font-family:ui-sans-serif,system-ui,sans-serif;font-weight:850}.table-wrap{width:100%;overflow-x:auto;margin-top:.7rem}table{width:100%;min-width:480px;border-collapse:collapse;font-family:ui-sans-serif,system-ui,sans-serif;font-size:.92rem}th,td{padding:.75rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}td small{display:block;color:var(--muted)}.conversion-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.85rem;margin-top:1rem}.tool-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.75rem;margin-top:6px}.tool-strip a{min-height:92px;padding:.85rem;background:var(--ink);color:#fff;border:1px solid rgba(244,211,94,.35);border-radius:var(--radius)}.tool-strip span,.tool-strip strong{display:block}.tool-strip span{color:var(--gold-2);font-family:ui-sans-serif,system-ui,sans-serif;font-size:.78rem;font-weight:850}.tool-strip strong{margin-top:.35rem;font-family:ui-sans-serif,system-ui,sans-serif;font-size:1.1rem;overflow-wrap:anywhere}.section-block,.related-section,.split-section,.content-grid,.category-stack{padding:58px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:1rem;margin-bottom:1.1rem}.section-heading a{color:var(--blue);font-family:ui-sans-serif,system-ui,sans-serif;font-weight:850}.small-heading{margin-bottom:.8rem}.small-heading h2{font-size:1.45rem}.tool-card-grid,.article-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.9rem}.tool-card,.article-card{display:block;min-height:190px;padding:1rem;background:#ffffffdb;border:1px solid var(--line);border-radius:var(--radius);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.tool-card:hover,.article-card:hover{transform:translateY(-3px);border-color:#c8942099;box-shadow:0 14px 32px #261f141f}.tool-card span,.article-card span{color:var(--green);font-family:ui-sans-serif,system-ui,sans-serif;font-size:.74rem;font-weight:850;letter-spacing:.1em;text-transform:uppercase}.tool-card strong,.article-card strong{display:block;margin-top:.45rem;font-size:1.2rem;line-height:1.12}.tool-card p,.article-card p{margin:.65rem 0 0;color:var(--muted);font-size:.96rem}.article-band{background:#17231f;color:#fff;border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1)}.article-band h2,.article-band .section-heading a{color:#fff}.article-band .eyebrow{color:var(--gold-2)}.article-band .article-card{background:#ffffff12;border-color:#ffffff29}.article-band .article-card strong{color:#fff}.article-band .article-card p{color:#ffffffb8}.split-section{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1fr);gap:40px}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}.content-main{display:grid;gap:1rem}.content-section,.sidebar-panel{padding:1.25rem;background:#ffffffd6;border:1px solid var(--line);border-radius:var(--radius)}.content-section p:last-child,.sidebar-panel p:last-child{margin-bottom:0}.formula-box{border-color:#c8942073;background:linear-gradient(180deg,#fffffff0,#f4d35e21)}.check-list,.plain-list{margin:.9rem 0 0;padding-left:1.2rem}.check-list li,.plain-list li{margin:.45rem 0}.check-list li::marker{color:var(--green)}.faq-list{display:grid;gap:.55rem;margin-top:1rem}.faq-list details{padding:.85rem 1rem;background:#fff;border:1px solid var(--line);border-radius:7px}.faq-list p{margin-bottom:0}.content-sidebar{position:sticky;top:92px;display:grid;gap:1rem}.sidebar-links,.source-links{display:grid;gap:.45rem;margin-top:.85rem;font-family:ui-sans-serif,system-ui,sans-serif;font-weight:760}.sidebar-links a,.source-links a,.source-section a{color:var(--blue)}.related-section{display:grid;grid-template-columns:minmax(0,.45fr) minmax(0,1fr);gap:28px;align-items:start}.category-section+.category-section{margin-top:2rem}.site-footer{margin-top:40px;padding:38px 0 20px;background:var(--ink);color:#fff}.footer-grid{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(2,minmax(180px,.45fr));gap:30px}.footer-brand .brand-mark{background:var(--gold-2);color:var(--ink)}.site-footer p,.site-footer a,.site-footer small{color:#ffffffb8}.site-footer h2{color:#fff;margin-bottom:.8rem}.site-footer a{display:block;margin:.38rem 0}.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);color:#ffffff94;font-family:ui-sans-serif,system-ui,sans-serif;font-size:.86rem}@media(max-width:980px){.home-hero-grid,.tool-hero-grid,.split-section,.content-grid,.related-section{grid-template-columns:1fr}.content-sidebar{position:static}.tool-card-grid,.article-grid,.tool-strip,.compact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1fr}}@media(max-width:760px){.nav-toggle{display:block}.primary-nav{position:absolute;left:16px;right:16px;top:72px;display:none;padding:.45rem;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.primary-nav.is-open{display:grid}.primary-nav>a,.nav-group>a{display:flex;width:100%;justify-content:space-between}.nav-dropdown{position:static;display:grid;opacity:1;transform:none;pointer-events:auto;min-width:0;margin:0 0 .35rem .65rem;padding:0;border:0;box-shadow:none;background:transparent}.home-hero,.tool-hero,.guide-hero,.page-hero{padding-top:44px}.calculator-grid,.ratio-inputs,.result-grid,.ratio-results,.conversion-grid,.tool-card-grid,.article-grid,.tool-strip,.compact-grid{grid-template-columns:1fr}.calculator-head,.section-heading{align-items:flex-start;flex-direction:column}.price-pill{min-width:0;max-width:100%;overflow-wrap:anywhere}}:root{--ink: #111111;--ink-2: #222222;--muted: #555555;--paper: #ffffff;--paper-2: #efefef;--line: #9a9a9a;--gold: #b98518;--gold-2: #f3d779;--green: #17633f;--blue: #1b1478;--red: #d01818;--shadow: none;--radius: 2px}html{scroll-behavior:auto}body{background:#fff;color:var(--ink);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:16px;line-height:1.38}p,li{color:var(--ink-2);font-size:1rem}a{color:var(--blue)}a:hover{text-decoration:underline}.shell{width:min(1260px,calc(100% - 28px))}.narrow-shell{width:min(980px,calc(100% - 28px))}.site-header{position:static;background:#fff;border-top:1px solid #d4d4d4;border-bottom:0;backdrop-filter:none}.nav-shell{min-height:0;padding:18px 0 0;display:flex;flex-wrap:wrap;align-items:flex-start;gap:12px 20px}.brand{gap:.75rem}.brand-mark{width:48px;height:48px;background:radial-gradient(circle at 35% 30%,#fff7c6 0 18%,#d6aa35 19% 52%,#8b6415 53% 100%);color:#1c1478;border:1px solid #777777;border-radius:50%;box-shadow:inset 0 1px #ffffffb3;font-size:.68rem;font-weight:800}.brand strong{color:var(--blue);font-size:1.45rem;line-height:1}.brand small{color:#555;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.76rem;font-weight:700;letter-spacing:0;text-transform:none}.primary-nav{order:3;width:100%;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;margin-top:12px;background:#eee;border:1px solid var(--blue);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:1rem;font-weight:800}.primary-nav>a,.nav-group>a{min-height:36px;justify-content:center;padding:.35rem .5rem;border-radius:0;border-right:1px solid #c9c9c9;color:var(--blue);text-align:center}.primary-nav a:hover,.nav-group:hover>a{background:#fff;color:var(--blue)}.nav-group{min-width:0}.nav-dropdown{top:calc(100% + 1px);right:0;min-width:230px;padding:0;background:#fff;border:1px solid var(--blue);border-radius:0;box-shadow:none}.nav-dropdown a{padding:.55rem .7rem;border-radius:0;border-bottom:1px solid #dddddd;color:var(--blue)}.home-hero,.tool-hero,.guide-hero,.page-hero{padding:24px 0 18px}.home-hero-grid,.tool-hero-grid{grid-template-columns:minmax(0,1fr) minmax(390px,.92fr);gap:22px;align-items:start}.home-hero-grid>*,.tool-hero-grid>*,.content-grid>*,.related-section>*{min-width:0}.hero-copy,.tool-intro{padding:0}.eyebrow,.section-kicker{margin:0 0 .35rem;color:var(--blue);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.78rem;font-weight:800;letter-spacing:0;text-transform:none}h1,h2,h3{color:#000;font-family:Verdana,Arial,Helvetica,sans-serif;line-height:1.12;letter-spacing:0}h1,.tool-intro h1,.page-hero h1,.guide-hero h1{max-width:980px;font-size:2rem}h2{font-size:1.35rem}.content-section h2,.sidebar-panel h2,.site-footer h2{font-size:1.05rem}.lead{max-width:760px;margin:.7rem 0 0;color:#202020;font-size:1.05rem}.hero-actions{gap:.45rem;margin-top:.9rem}.button{min-height:34px;padding:.35rem .75rem;border-radius:0;border:1px solid #777777;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.95rem;font-weight:700}.button.primary,.button.secondary{background:#eee;color:var(--blue)}.button.primary:hover,.button.secondary:hover{background:#fff}.hero-asset{width:min(360px,100%);margin:1rem 0 0;border:1px solid #a0a0a0;border-radius:0;background:#f2f2f2;box-shadow:none}.mini-facts{gap:.35rem;margin-top:.9rem;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.9rem}.mini-facts span{padding:.25rem .45rem;border:1px solid #a8a8a8;background:#f5f5f5;border-radius:0}.calculator{background:#f6f6f6;border:2px solid var(--blue);border-radius:0;box-shadow:none;min-width:0;padding:0}.calculator-head{align-items:center;padding:.7rem .85rem;background:#eee;border-bottom:1px solid var(--blue)}.calculator-head h2{font-size:1.28rem}.price-pill{padding:.3rem .45rem;background:#fff;color:var(--green);border:1px solid #8b8b8b;border-radius:0;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.78rem;font-weight:700}.calculator-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem .9rem;margin-top:0;padding:.9rem;background:#fff}.ratio-inputs{grid-template-columns:repeat(3,minmax(0,1fr))}label span{margin-bottom:.25rem;color:#111;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.9rem;font-weight:700;letter-spacing:0;text-transform:none}.label-with-help{display:flex;align-items:center;gap:.35rem;position:relative}.help-tip{position:relative;display:inline-grid;place-items:center;width:18px;height:18px;margin-bottom:0;background:#eee;border:1px solid #777777;color:var(--blue);cursor:help;font-size:.76rem;font-weight:800;line-height:1}.help-text{position:absolute;left:calc(100% + 7px);top:50%;z-index:30;width:265px;margin-bottom:0;padding:.45rem .55rem;transform:translateY(-50%);background:#fffde8;border:1px solid #777777;color:#111;font-size:.78rem;font-weight:400;line-height:1.3;opacity:0;pointer-events:none;visibility:hidden}.help-tip:hover .help-text,.help-tip:focus .help-text,.help-tip:focus-within .help-text{opacity:1;visibility:visible}input,select{min-height:34px;border:1px solid #777777;border-radius:0;background:#f3f3f3;color:#000;padding:.25rem .45rem}input:focus,select:focus,summary:focus-visible,a:focus-visible,button:focus-visible,.help-tip:focus-visible{outline:2px solid #6b65c8;outline-offset:1px}.result-grid,.conversion-grid{gap:.6rem;margin-top:0;padding:.9rem;background:#eee;border-top:1px solid #b0b0b0}.result-card,.conversion-grid div{min-height:88px;padding:.65rem;border:1px solid #9d9d9d;border-radius:0;background:#fff}.result-card span,.conversion-grid span{color:#333;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.78rem;font-weight:700;letter-spacing:0;text-transform:none}.result-card strong,.conversion-grid strong{margin-top:.25rem;color:#111;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:1.45rem}.result-card small{color:#555;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.82rem}.primary-result{background:#fbfbfb;border:2px solid var(--blue)}.primary-result span,.primary-result small{color:#333}.primary-result strong{color:var(--red);font-size:2rem}.breakdown{margin-top:0;padding:0 .9rem .9rem;background:#fff}summary{padding:.55rem 0;color:var(--blue);font-family:Verdana,Arial,Helvetica,sans-serif;font-weight:800}table{min-width:480px;border:1px solid #9d9d9d;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.9rem}th,td{padding:.5rem .6rem;border:1px solid #c6c6c6}th{background:#eee;color:#000}.tool-strip{gap:0;margin-top:10px;border:1px solid var(--blue);background:#eee}.tool-strip a{min-height:62px;padding:.55rem .7rem;background:#f8f8f8;color:var(--blue);border:0;border-right:1px solid #bbbbbb;border-radius:0}.tool-strip span{color:#111;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.78rem}.tool-strip strong{font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.98rem}.section-block,.related-section,.split-section,.content-grid,.category-stack{padding:30px 0}.section-heading{align-items:baseline;margin-bottom:.7rem;border-bottom:1px solid #a9a9a9;padding-bottom:.35rem}.section-heading h2{max-width:760px}.section-heading a{color:var(--blue);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.92rem;font-weight:700}.tool-card-grid,.article-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:.65rem}.compact-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.tool-card,.article-card{min-height:138px;padding:.75rem;background:#fff;border:1px solid #a5a5a5;border-radius:0;transition:none}.tool-card:hover,.article-card:hover{transform:none;border-color:var(--blue);box-shadow:none;background:#f8f8f8}.tool-card span,.article-card span{color:#444;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.74rem;font-weight:700;letter-spacing:0;text-transform:none}.tool-card strong,.article-card strong{margin-top:.3rem;color:var(--blue);font-size:1rem;line-height:1.2}.tool-card p,.article-card p{margin:.45rem 0 0;color:#333;font-size:.9rem}.article-band{background:#f2f2f2;color:#111;border-top:1px solid #a9a9a9;border-bottom:1px solid #a9a9a9}.article-band h2,.article-band .section-heading a,.article-band .article-card strong,.article-band .eyebrow{color:var(--blue)}.article-band .article-card{background:#fff;border-color:#a5a5a5}.article-band .article-card p{color:#333}.split-section{grid-template-columns:minmax(0,.65fr) minmax(0,1fr);gap:24px;border-top:1px solid #b5b5b5}.content-grid{grid-template-columns:minmax(0,1fr) 300px;gap:24px}.content-main{grid-template-columns:minmax(0,1fr);gap:.75rem}.content-main>*{min-width:0}.content-section,.sidebar-panel{min-width:0;padding:1rem;background:#fff;border:1px solid #a9a9a9;border-radius:0}.price-board{border-color:var(--blue);background:#f8f8f8}.price-metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.65rem;margin-top:.8rem}.price-metric-grid div{min-height:100px;padding:.7rem;background:#fff;border:1px solid #9d9d9d}.price-metric-grid span,.price-metric-grid small{display:block;color:#333;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.8rem}.price-metric-grid span{font-weight:700}.price-metric-grid strong{display:block;margin:.35rem 0 .3rem;color:var(--red);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:1.65rem;line-height:1.05;overflow-wrap:anywhere}.formula-box{border-color:var(--blue);background:#f6f6f6}.faq-list details{padding:.75rem;background:#fff;border:1px solid #b5b5b5;border-radius:0}.content-sidebar{top:16px;gap:.75rem}.sidebar-links,.source-links{gap:.35rem;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.92rem;font-weight:700}.related-section{grid-template-columns:minmax(0,.32fr) minmax(0,1fr);gap:20px;border-top:1px solid #b5b5b5}.site-footer{margin-top:28px;padding:24px 0 16px;background:#eee;color:#111;border-top:2px solid var(--blue)}.site-footer p,.site-footer a,.site-footer small,.footer-bottom{color:#333}.site-footer h2{color:#111}.footer-brand .brand-mark{background:radial-gradient(circle at 35% 30%,#fff7c6 0 18%,#d6aa35 19% 52%,#8b6415 53% 100%);color:var(--blue)}.footer-bottom{margin-top:20px;padding-top:14px;border-top:1px solid #c6c6c6;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:.82rem}@media(max-width:980px){.home-hero-grid,.tool-hero-grid,.split-section,.content-grid,.related-section{grid-template-columns:1fr}.tool-card-grid,.article-grid,.tool-strip,.compact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.content-sidebar{position:static}}@media(max-width:760px){.nav-shell{padding-top:12px}.nav-toggle{display:block;margin-left:auto;border-radius:0;box-shadow:none}.primary-nav{top:72px;left:14px;right:14px;display:none;grid-template-columns:1fr;padding:0;border-radius:0;box-shadow:none}.primary-nav.is-open{display:grid}.primary-nav>a,.nav-group>a{justify-content:flex-start;border-right:0;border-bottom:1px solid #cccccc;text-align:left}.nav-dropdown{margin:0;border-top:0}h1,.tool-intro h1,.page-hero h1,.guide-hero h1{font-size:1.6rem}.home-hero,.tool-hero,.guide-hero,.page-hero{padding-top:20px}.calculator-grid,.ratio-inputs,.result-grid,.ratio-results,.conversion-grid,.price-metric-grid,.tool-card-grid,.article-grid,.tool-strip,.compact-grid{grid-template-columns:1fr}.calculator-head,.section-heading{align-items:flex-start;flex-direction:column}.primary-result strong{font-size:1.75rem}.help-text{position:fixed;inset:auto 14px 18px;width:auto;transform:none}table{min-width:360px}}