:root{color-scheme:light;--paper:#f5efe4;--surface:#fff;--ink:#1b252b;--muted:#62717a;--line:#d8d2c6;--teal:#2f8f83;--teal-dark:#176b63;--amber:#f08a4b;--red:#b64b3b;--field:#fffdf8;--shadow:0 24px 62px #1b252b24;--tight-shadow:0 12px 30px #1b252b1a;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:linear-gradient(180deg, #fffdf8d1, #f5efe400 420px), repeating-linear-gradient(90deg, #1b252b06 0 1px, transparent 1px 72px), var(--paper);color:var(--ink);margin:0}a{color:inherit}a:focus-visible{outline-offset:3px;border-radius:8px;outline:3px solid #2f8f8347}.skip-link{z-index:99;background:var(--ink);color:#fffdf8;border-radius:8px;padding:10px 12px;font-weight:900;text-decoration:none;position:fixed;top:12px;left:12px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}button,input,select{font:inherit}button{cursor:pointer}.site-header{z-index:10;backdrop-filter:blur(18px);background:#fffdf8db;border-bottom:1px solid #d8d2c6b8;justify-content:space-between;align-items:center;gap:24px;padding:14px clamp(18px,4vw,56px);display:flex;position:sticky;top:0;box-shadow:0 1px #ffffffa6}.brand{align-items:center;gap:10px;font-size:.98rem;font-weight:900;text-decoration:none;display:inline-flex}.brand-mark{border:7px solid #1e2a30;border-radius:50%;width:30px;height:30px;box-shadow:inset 0 0 0 4px #8bd2c7,0 6px 14px #2f8f833d}.site-header nav{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.site-header nav a{color:#586872;border-radius:8px;padding:9px 12px;font-size:.94rem;font-weight:800;text-decoration:none}.site-header nav a:hover{color:var(--ink);background:#ece5d7}.calculator-shell{grid-template-columns:minmax(330px,.88fr) minmax(430px,1.12fr);align-items:center;gap:clamp(18px,2.6vw,32px);width:min(1220px,100% - 36px);min-height:calc(100vh - 72px);margin:0 auto;padding:clamp(24px,4vw,58px) 0 30px;display:grid}.calculator-panel,.results-panel{box-shadow:var(--shadow);background:#fffffff0;border:1px solid #c7beb1d6;border-radius:8px}.calculator-panel{padding:clamp(22px,4vw,36px);position:relative;overflow:hidden}.calculator-panel:before{content:"";background:linear-gradient(90deg, var(--teal), var(--amber), var(--red));height:6px;position:absolute;inset:0 0 auto}.calculator-panel>*{position:relative}.panel-heading{margin-bottom:26px}.eyebrow{color:var(--teal-dark);letter-spacing:0;text-transform:uppercase;margin:0 0 10px;font-size:.78rem;font-weight:900}h1,h2{letter-spacing:0;margin:0;line-height:1.08}h1{max-width:680px;font-size:clamp(2.05rem,4.6vw,4.35rem)}h2{font-size:clamp(1.55rem,3vw,2.25rem)}p{line-height:1.65}.panel-heading p:not(.eyebrow){max-width:620px;color:var(--muted);margin:16px 0 0;font-size:1.06rem}.hero-tags{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.hero-tags span{color:#3e4e55;background:#fbf7ef;border:1px solid #cfc5b7;border-radius:8px;align-items:center;min-height:32px;padding:7px 10px;font-size:.82rem;font-weight:900;display:inline-flex}.calculator-form{gap:16px;padding-top:4px;display:grid}.field-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.field{gap:7px;display:grid}.field span,.range-row label{color:#34444c;font-size:.9rem;font-weight:800}select,input[type=number]{background:var(--field);width:100%;height:50px;color:var(--ink);border:1px solid #c4baa9;border-radius:8px;padding:0 12px;box-shadow:inset 0 1px #ffffffc2}input:disabled{color:#7a827f;background:#eee7dc}select:focus,input:focus{border-color:var(--teal);outline:3px solid #2f8f8338}.input-with-unit,.split-input{grid-template-columns:minmax(0,1fr) auto;align-items:center;display:grid}.input-with-unit input,.split-input input{border-top-right-radius:0;border-bottom-right-radius:0}.input-with-unit>span,.split-input select{color:#34444c;background:#ebe4d8;border:1px solid #c4baa9;border-left:0;border-radius:0 8px 8px 0;justify-content:center;align-items:center;min-width:58px;height:50px;font-weight:800;display:inline-flex}.split-input select{padding:0 8px}.range-row{background:#fbf7ef;border:1px solid #d4cabd;border-radius:8px;gap:10px;padding:14px 14px 12px;display:grid}input[type=range]{accent-color:var(--teal)}.noscript-note{color:#44535a;background:#fff8ed;border:1px solid #d4cabd;border-radius:8px;margin:16px 0 0;padding:12px 14px;font-weight:800}.preset-row{grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;display:grid}.preset-row button{color:#34444c;background:#fffdf8;border:1px solid #cfc5b7;border-radius:8px;min-height:40px;font-size:.84rem;font-weight:900;box-shadow:inset 0 1px #ffffffd1}.preset-row button:hover{color:var(--teal-dark);background:#2f8f8317;border-color:#2f8f8394}.preset-row button:focus-visible{outline-offset:2px;outline:3px solid #2f8f833d}.results-panel{grid-template-rows:auto auto 1fr auto;align-self:stretch;display:grid;overflow:hidden}.results-header{border-bottom:1px solid var(--line);background:#fffdf8;justify-content:space-between;align-items:center;gap:18px;padding:20px 22px;display:flex}.results-header h2{margin-top:3px;font-size:clamp(1.35rem,2.2vw,2rem)}.results-kicker{color:var(--teal-dark);text-transform:uppercase;font-size:.76rem;font-weight:900}.status-pill{min-height:34px;color:var(--teal-dark);white-space:nowrap;background:#2f8f831a;border:1px solid #2f8f8347;border-radius:8px;align-items:center;padding:8px 11px;font-size:.8rem;font-weight:900;display:inline-flex}.scene-visual{border-bottom:1px solid var(--line);background:#f5efe3}.scene-visual svg{width:100%;height:auto;min-height:250px;display:block}.scene-visual text{font-size:22px;font-weight:900}.metric-grid{background:#ddd4c6;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;display:grid}.metric{background:#fffdf8;min-height:118px;padding:18px 18px 17px}.metric:first-child,.metric:nth-child(4){background:#fbf7ef}.metric span{color:var(--muted);font-size:.86rem;font-weight:800;display:block}.metric strong{color:var(--ink);margin-top:11px;font-size:clamp(1.5rem,2.45vw,2.2rem);line-height:1;display:block}.insight-panel{border-top:1px solid var(--line);background:linear-gradient(90deg,#2f8f831c,#f08a4b14),#fffdf8;gap:6px;padding:18px 22px;display:grid}.insight-panel span{color:var(--teal-dark);text-transform:uppercase;font-size:.76rem;font-weight:900}.insight-panel p{color:#2f3f46;max-width:680px;margin:0;font-weight:760;line-height:1.5}.formula-note{color:#44535a;background:#f7f1e7;margin:0;padding:18px 22px;font-size:.95rem}.content-wrap{width:min(1220px,100% - 36px);margin:0 auto;padding:18px 0 64px}.content-section{border-top:1px solid var(--line);padding:40px 0}.content-section p{color:#44535a;max-width:820px}.intro-copy{border-top:0;grid-template-columns:minmax(240px,.56fr) minmax(0,1fr);align-items:start;gap:clamp(18px,4vw,56px);display:grid}.intro-copy p{margin-top:0}.section-label{color:var(--red);text-transform:uppercase;margin:0 0 10px;font-size:.78rem;font-weight:900}.article-layout{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:clamp(24px,4vw,44px);display:grid}.article-layout>article,.sidebar{min-width:0}.formula-box{border:1px solid #cfc5b7;border-left:5px solid var(--amber);max-width:100%;box-shadow:var(--tight-shadow);overflow-wrap:anywhere;background:#fffdf8;border-radius:8px;margin:8px 0 10px;padding:16px 18px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;display:inline-block}.table-wrap{overflow-x:auto}table{border-collapse:collapse;background:var(--surface);border:1px solid var(--line);width:100%;min-width:620px;box-shadow:var(--tight-shadow);border-radius:8px;overflow:hidden}caption{color:#44535a;text-align:left;background:#fffdf8;padding:12px 16px;font-weight:800}th,td{border-bottom:1px solid var(--line);text-align:left;padding:14px 16px}th{color:#34444c;text-transform:uppercase;background:#ebe2d4;font-size:.86rem}tr:last-child td{border-bottom:0}.use-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px;display:grid}.use-grid article{border:1px solid var(--line);min-height:164px;box-shadow:var(--tight-shadow);background:#fffdf8;border-radius:8px;padding:18px}.use-grid span{color:var(--red);font-size:.78rem;font-weight:900}.use-grid h3{color:var(--ink);margin:8px 0;font-size:1.12rem;line-height:1.2}.use-grid p{color:#44535a;margin:0;line-height:1.55}.guide-grid{gap:14px;margin-top:18px;display:grid}.guide-grid article{border:1px solid var(--line);box-shadow:var(--tight-shadow);background:#fffdf8;border-radius:8px;padding:20px}.guide-grid h3{color:var(--ink);margin:0 0 10px;font-size:1.18rem;line-height:1.2}.guide-grid p{color:#44535a;margin:0;line-height:1.62}details{border-top:1px solid var(--line);padding:19px 0}details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;color:#26343b;font-weight:900}details p{margin-bottom:0}.sidebar{gap:18px;display:grid;position:sticky;top:86px}.sidebar-note{border:1px solid var(--line);box-shadow:var(--tight-shadow);background:#fffdf8;border-radius:8px;padding:20px}.sidebar-note h2{margin-bottom:12px;font-size:1.1rem}.sidebar-note a{border-top:1px solid var(--line);color:#44535a;padding:10px 0;font-weight:700;text-decoration:none;display:block}.sidebar-note a:hover{color:var(--teal-dark)}.ad-slot{color:#7a6f61;text-transform:uppercase;background:linear-gradient(135deg,#2f8f8312,#f08a4b17),#fffdf8;border:1px dashed #b3aa9d;border-radius:8px;place-items:center;font-size:.78rem;font-weight:900;display:grid}.ad-slot--leaderboard{min-height:104px}.ad-slot--rectangle{min-height:250px}.ad-slot--inline{min-height:120px}.site-footer{border-top:1px solid var(--line);color:var(--muted);text-align:center;background:#eee7dc;padding:28px clamp(18px,4vw,56px)}.site-footer p{max-width:780px;margin:0 auto}@media (width<=920px){.calculator-shell,.article-layout,.intro-copy{grid-template-columns:1fr}.calculator-shell{align-items:stretch;min-height:0}.results-panel{align-self:auto}.sidebar{position:static}}@media (width<=680px){.site-header{flex-direction:column;align-items:flex-start;position:static}.site-header nav{justify-content:flex-start}.field-grid,.metric-grid,.preset-row,.use-grid{grid-template-columns:1fr}.results-header{flex-direction:column;align-items:flex-start}.metric{min-height:88px}.scene-visual svg{min-height:210px}}