:root{--ink:#17211d;--muted:#59665f;--paper:#f7f5ec;--surface:#fff;--forest:#123c32;--forest-deep:#092c24;--lime:#c8f26b;--lime-dark:#8fb331;--coral:#ff7a5c;--coral-strong:#b33e2a;--sand:#eadfcb;--line:#d9ded8;--error:#a72d2d;--radius-sm:12px;--radius:20px;--radius-lg:32px;--shadow:0 18px 55px #123c321a;--container:1180px;--font-geist-sans:"Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif;--font-geist-mono:"Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);font-family:var(--font-geist-sans), Arial, sans-serif;text-rendering:optimizelegibility;margin:0;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,select,summary,a{-webkit-tap-highlight-color:transparent}:focus-visible{outline-offset:3px;box-shadow:0 0 0 6px var(--coral-strong);outline:3px solid #fff}::selection{background:var(--lime);color:var(--forest-deep)}.skip-link{z-index:100;background:var(--ink);color:#fff;border-radius:10px;padding:10px 14px;position:fixed;top:10px;left:10px;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}.container{width:min(calc(100% - 32px), var(--container));margin-inline:auto}.narrow{max-width:760px}.eyebrow{color:var(--forest);letter-spacing:.12em;text-transform:uppercase;align-items:center;gap:8px;font-size:.75rem;font-weight:800;line-height:1.3;display:inline-flex}.eyebrow:before{background:var(--coral);content:"";width:18px;height:2px}.eyebrow-light{color:var(--lime)}.eyebrow-light:before{background:var(--lime)}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.045em;font-weight:750;line-height:1.08}h1{font-size:clamp(2.6rem,7vw,5.8rem)}h2{font-size:clamp(2rem,4vw,3.5rem)}h3{font-size:1.35rem}.button{cursor:pointer;border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;min-height:48px;padding:12px 20px;font-weight:750;line-height:1;transition:background-color .16s,color .16s,transform .16s;display:inline-flex}.button:hover{transform:translateY(-1px)}.button-primary{background:var(--forest);color:#fff}.button-primary:hover{background:var(--forest-deep)}.button-ghost{border-color:var(--line);color:var(--forest);background:#fff}.button-ghost:hover{border-color:var(--forest)}.button-lime{background:var(--lime);color:var(--forest-deep)}.button-lime:hover{background:#d5ff7d}.button-text{color:var(--muted);background:0 0;padding-inline:10px}.button-text:hover{color:var(--forest)}.button-row{flex-wrap:wrap;gap:12px;margin-top:32px;display:flex}.text-link{min-height:44px;color:var(--forest);text-decoration:underline;-webkit-text-decoration-color:var(--lime-dark);text-decoration-color:var(--lime-dark);text-underline-offset:5px;align-items:center;font-weight:750;text-decoration-thickness:2px;display:inline-flex}.site-header{z-index:50;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#f7f5ecf0;border-bottom:1px solid #123c3217;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:24px;min-height:72px;display:flex}.brand{color:var(--forest);letter-spacing:-.035em;align-items:center;gap:10px;font-size:1.1rem;font-weight:820;display:inline-flex}.brand-mark{background:var(--lime);width:34px;height:34px;color:var(--forest-deep);border-radius:50%;place-items:center;font-size:1.15rem;display:inline-grid}.desktop-nav{align-items:center;gap:28px;font-size:.9rem;font-weight:650;display:none}.desktop-nav>a:not(.nav-cta):hover{color:var(--coral)}.nav-cta{background:var(--forest);color:#fff;border-radius:999px;padding:10px 17px}.mobile-nav{position:relative}.mobile-nav summary{border:1px solid var(--line);cursor:pointer;border-radius:999px;place-items:center;min-width:48px;min-height:44px;padding:8px 12px;font-weight:700;list-style:none;display:grid}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav nav{border:1px solid var(--line);border-radius:var(--radius);width:min(80vw,300px);box-shadow:var(--shadow);background:#fff;display:grid;position:absolute;top:54px;right:0;overflow:hidden}.mobile-nav nav a{border-bottom:1px solid var(--line);min-height:48px;padding:12px 18px;font-weight:650}.mobile-nav nav a:last-child{border-bottom:0}.hero{background:radial-gradient(circle at 88% 8%, #c8f26b94 0 9%, transparent 9.3%), linear-gradient(180deg, #f1eddf 0%, var(--paper) 100%);padding:clamp(52px,8vw,96px) 0 72px;overflow:hidden}.hero-copy{gap:36px;display:grid}.hero-message{max-width:900px}.hero-message h1{max-width:950px;color:var(--forest-deep);margin:16px 0 24px}.hero-message p{max-width:680px;color:var(--muted);font-size:clamp(1.1rem,2vw,1.35rem)}.hero-trust{color:var(--forest);flex-wrap:wrap;gap:10px 22px;margin-top:28px;font-size:.9rem;font-weight:700;display:flex}.hero-trust span{align-items:center;gap:7px;display:inline-flex}.hero-trust b{background:var(--lime);border-radius:50%;place-items:center;width:22px;height:22px;display:inline-grid}.hero-note{border-radius:var(--radius);background:#ffffff8c;border:1px solid #123c322e;align-self:end;align-items:center;gap:14px;max-width:310px;padding:18px;display:flex}.hero-note-number{color:var(--coral-strong);font-size:3.2rem;font-weight:800;line-height:1}.hero-note strong{color:var(--forest);display:block}.hero-note p{color:var(--muted);margin:2px 0 0;font-size:.85rem;line-height:1.35}.hero-calculator{margin-top:48px}.calculator-shell{border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow);border:1px solid #123c321a;overflow:hidden}.calculator-topline{justify-content:space-between;align-items:flex-end;gap:24px;padding:28px 28px 0;display:flex}.calculator-topline h2{margin:8px 0 0;font-size:clamp(1.7rem,3vw,2.4rem)}.preset-select{gap:6px;min-width:230px;display:grid}.preset-select span,.compare-toolbar label span{color:var(--muted);font-size:.75rem;font-weight:700}.preset-select select,.compare-toolbar input{border:1px solid var(--line);min-height:44px;color:var(--ink);background:#fff;border-radius:11px;padding:9px 12px}.calculator-disclaimer{color:var(--muted);margin:10px 28px 22px;font-size:.8rem}.calculator-grid{display:grid}.calculator-grid form{grid-template-columns:1fr 1fr;gap:18px;padding:4px 28px 28px;display:grid}.field{flex-direction:column;gap:6px;min-width:0;display:flex}.field-wide{grid-column:1/-1}.field label{color:var(--forest);justify-content:space-between;align-items:baseline;gap:8px;font-size:.84rem;font-weight:750;display:flex}.field label span{color:var(--muted);font-size:.69rem;font-weight:550}.field input,.compare-device input,.compare-device select{border:1px solid var(--line);border-radius:var(--radius-sm);width:100%;min-height:48px;color:var(--ink);background:#fbfcfa;padding:11px 13px}.field input:hover,.compare-device input:hover,.compare-device 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strong{color:var(--lime);letter-spacing:-.06em;margin:4px 0;font-size:clamp(2.5rem,7vw,4.3rem);line-height:1;display:block}.result-list{grid-template-columns:1fr 1fr;gap:0 18px;margin:18px 0;display:grid}.result-list div{border-bottom:1px solid #ffffff1c;padding:10px 0}.result-list dt{color:#ffffffa3;font-size:.72rem}.result-list dd{margin:2px 0 0;font-weight:720}.result-caveat,.form-notice{color:#ffffffa8;font-size:.73rem}.result-empty{align-content:center;min-height:300px;display:grid}.result-empty p{color:#ffffffad}.result-actions{flex-wrap:wrap;gap:8px;display:flex}.result-actions button{color:#fff;cursor:pointer;background:0 0;border:1px solid #ffffff3d;border-radius:999px;min-height:44px;padding:8px 13px;font-size:.78rem;font-weight:700}.result-actions button:hover:not(:disabled){border-color:var(--lime);color:var(--lime)}.result-actions button:disabled{cursor:not-allowed;opacity:.45}.formula{border-top:1px solid var(--line);color:var(--muted);background:#f5f7f3;gap:8px;padding:20px 28px;display:grid}.formula strong{color:var(--forest);font-size:.78rem}.formula code{color:var(--ink);white-space:nowrap;font-size:.8rem;overflow-x:auto}.section{padding:clamp(72px,10vw,128px) 0}.section-tight{padding-top:72px}.section-soft{background:#eeece3}.section-dark{background:var(--forest-deep);color:#fff}.section-heading{max-width:760px;margin-bottom:42px}.section-heading h2{margin:10px 0 0}.section-heading>p{max-width:650px;color:var(--muted)}.split-heading{justify-content:space-between;align-items:flex-end;gap:32px;max-width:none;display:flex}.appliance-grid{grid-template-columns:1fr;gap:12px;display:grid}.appliance-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;min-height:92px;padding:15px;transition:border-color .16s,transform .16s;display:grid}.appliance-card:hover{border-color:var(--forest);transform:translateY(-2px)}.appliance-icon,.category-icon{width:48px;height:48px;color:var(--forest);background:#ebf6cf;border-radius:15px;place-items:center;font-size:1.35rem;display:grid}.appliance-card strong,.appliance-card small{display:block}.appliance-card strong{line-height:1.25}.appliance-card small{color:var(--muted);margin-top:4px;font-size:.73rem}.explainer-grid{gap:56px;display:grid}.explainer-grid h2{color:#fff;margin:12px 0 20px}.explainer-grid>div>p{color:#ffffffb3;max-width:520px;margin-bottom:30px}.steps{margin:0;padding:0;list-style:none}.steps li{border-bottom:1px solid #ffffff24;grid-template-columns:auto 1fr;gap:18px;padding:24px 0;display:grid}.steps li>span{color:var(--lime);font-family:var(--font-geist-mono), monospace;font-size:.8rem}.steps strong{font-size:1.15rem}.steps p{color:#ffffff9e;margin:4px 0 0}.formula-banner{border-top:1px solid #ffffff2b;border-bottom:1px solid #ffffff2b;gap:10px;margin-top:56px;padding:22px 0;display:grid}.formula-banner span{color:var(--coral);text-transform:uppercase;font-size:.75rem;font-weight:800}.formula-banner code{color:var(--lime);white-space:nowrap;font-size:clamp(.83rem,2vw,1.3rem);overflow-x:auto}.guide-grid{gap:18px;display:grid}.guide-card{border-radius:var(--radius);flex-direction:column;min-height:330px;padding:26px;display:flex;position:relative;overflow:hidden}.guide-tone-1{background:#e1efbf}.guide-tone-2{background:#f4c9bb}.guide-tone-3{background:#e3dfd0}.guide-index{color:#123c3299;letter-spacing:-.08em;font-size:4.5rem;font-weight:850;line-height:1;position:absolute;top:12px;right:18px}.tag{color:var(--forest);letter-spacing:.05em;text-transform:uppercase;border:1px solid #123c3233;border-radius:999px;align-self:flex-start;padding:6px 10px;font-size:.68rem;font-weight:800;position:relative}.guide-card h2,.guide-card h3{max-width:85%;margin:58px 0 12px;font-size:1.6rem;position:relative}.guide-card p{color:#425048;position:relative}.guide-card>a{min-height:44px;color:var(--forest);align-items:center;margin-top:auto;font-weight:800;display:inline-flex;position:relative}.category-grid{gap:16px;display:grid}.category-card{border-radius:var(--radius);background:#fff;border:1px solid #0000;flex-direction:column;align-items:flex-start;min-height:310px;padding:24px;transition:border-color .16s,transform .16s;display:flex}.category-card:hover{border-color:var(--forest);transform:translateY(-3px)}.category-card .category-icon{margin-bottom:38px}.category-card h3{margin:7px 0 10px;font-size:1.6rem}.category-card p{color:var(--muted);font-size:.88rem}.category-card .text-link{margin-top:auto}.faq-layout{gap:48px;display:grid}.faq-layout>div:first-child p{color:var(--muted)}.faq-list details{border-top:1px solid var(--line)}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;min-height:64px;color:var(--forest);padding:20px 42px 20px 0;font-weight:750;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";font-size:1.5rem;font-weight:400;position:absolute;top:19px;right:8px}.faq-list details[open] summary:after{content:"−"}.faq-list details p{color:var(--muted);padding:0 36px 20px 0}.share-cta{border-radius:var(--radius-lg);background:var(--forest);color:#fff;justify-content:space-between;align-items:center;gap:28px;margin-bottom:80px;padding:clamp(30px,6vw,56px);display:flex}.share-cta h2{max-width:700px;margin:10px 0 0;font-size:clamp(1.9rem,4vw,3rem)}.page-hero{background:radial-gradient(circle at 85%,#c8f26b80 0 11%,#0000 11.4%),#eee9db;padding:clamp(64px,10vw,112px) 0;overflow:hidden}.page-hero-grid{align-items:center;gap:36px;display:grid}.page-hero h1{max-width:900px;margin:14px 0 22px;font-size:clamp(2.8rem,7vw,5.2rem)}.page-hero p{max-width:720px;color:var(--muted);font-size:1.15rem}.page-hero-icon{background:var(--forest);width:150px;height:150px;box-shadow:18px 18px 0 var(--coral);color:var(--lime);border-radius:44px;justify-self:center;place-items:center;font-size:4rem;display:grid;transform:rotate(-5deg)}.metric-stack{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.metric-stack span{background:var(--forest);width:92px;height:92px;color:var(--lime);border-radius:28px;place-items:center;font-size:1.35rem;font-weight:800;display:grid}.metric-stack span:nth-child(2){background:var(--coral);color:var(--forest-deep);transform:translateY(20px)}.preset-list{gap:10px;display:grid}.preset-row{border:1px solid var(--line);border-radius:var(--radius);background:#fff;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:14px;display:grid}.preset-row strong,.preset-row small{display:block}.preset-row small{color:var(--muted)}.preset-row>span:last-child{color:var(--forest);font-size:.8rem;font-weight:800}.prose-grid{gap:36px;display:grid}.prose-grid h2{margin:10px 0 0}.prose{color:var(--muted);font-size:1.05rem}.prose-light{color:#ffffffb8}.chip-list{flex-wrap:wrap;gap:9px;display:flex}.chip-list a{border:1px solid var(--line);background:#fff;border-radius:999px;align-items:center;gap:8px;min-height:44px;padding:9px 14px;font-size:.82rem;font-weight:700;display:inline-flex}.chip-list a:hover{border-color:var(--forest)}.comparator-shell{border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);background:#fff;overflow:hidden}.compare-toolbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-end;gap:24px;padding:26px;display:flex}.compare-toolbar h2{margin:8px 0 0;font-size:2rem}.compare-toolbar label{gap:6px;display:grid}.compare-grid{display:grid}.compare-device{border:0;gap:16px;min-width:0;margin:0;padding:26px;display:grid}.compare-device+.compare-device{border-top:1px solid var(--line);background:#f4f6f2}.compare-device legend{color:var(--forest);padding:0;font-size:1.2rem;font-weight:800}.compare-device label{gap:6px;display:grid}.compare-device label>span{color:var(--muted);font-size:.75rem;font-weight:700}.field-pair{grid-template-columns:1fr 1fr;gap:12px;display:grid}.compare-results{background:var(--forest);color:#fff;display:grid}.compare-results>div{border-bottom:1px solid #ffffff24;min-width:0;padding:22px}.compare-results span,.compare-results small{color:#ffffffad;display:block}.compare-results strong{color:var(--lime);margin:4px 0;font-size:1.5rem;display:block}.compare-results .positive-result strong{color:#ffd1c6}.compare-error{color:var(--error);background:#ffe5df;margin:0;padding:22px 26px}.compare-symbol{justify-content:center;align-items:center;gap:12px;display:flex}.compare-symbol span{background:var(--forest);width:72px;height:72px;color:var(--lime);border-radius:24px;place-items:center;font-size:1.7rem;font-weight:800;display:grid}.compare-symbol span:last-child{background:var(--coral);color:var(--forest)}.guide-count{justify-content:center;align-items:baseline;gap:12px;display:flex}.guide-count strong{color:var(--forest);letter-spacing:-.08em;font-size:6rem;line-height:1}.guide-count span{max-width:70px;color:var(--muted);font-weight:700;line-height:1.2}.filter-links{flex-wrap:wrap;gap:9px;margin-bottom:34px;display:flex}.filter-links span,.filter-links a{border-radius:999px;align-items:center;min-height:44px;padding:8px 13px;font-size:.8rem;display:inline-flex}.filter-links span{color:var(--muted)}.filter-links a{border:1px solid var(--line);background:#fff;font-weight:700}.article-hero{background:linear-gradient(130deg,#0000 60%,#c8f26b57 60%),#eee9db;padding:42px 0 72px}.article-hero-inner{max-width:940px}.breadcrumbs{color:var(--muted);flex-wrap:wrap;gap:7px;margin-bottom:42px;font-size:.76rem;display:flex}.breadcrumbs a{text-underline-offset:3px;align-items:center;min-height:32px;text-decoration:underline;display:inline-flex}.article-hero .tag{margin-bottom:20px}.article-hero h1{max-width:900px;margin-bottom:20px;font-size:clamp(2.7rem,7vw,5.5rem)}.article-deck{max-width:760px;color:var(--muted);font-size:1.25rem}.article-meta{color:var(--muted);flex-wrap:wrap;gap:10px 24px;margin-top:28px;font-size:.78rem;font-weight:650;display:flex}.article-layout{gap:60px;padding-top:70px;padding-bottom:96px;display:grid}.article-main{min-width:0}.article-main>section{margin-bottom:78px;scroll-margin-top:100px}.article-main h2{margin:10px 0 18px;font-size:clamp(1.9rem,4vw,3rem)}.article-main p,.article-main li{color:#49574f;font-size:1.03rem}.article-main .results-panel .result-caveat,.article-main .results-panel .form-notice,.article-main .results-panel .result-empty p{color:#ffffffb8}.article-intro>p:first-child{color:var(--ink);font-size:1.25rem}.orientation-note{border-left:4px solid var(--coral);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:#f1ecdf;padding:20px}.orientation-note strong{color:var(--forest)}.orientation-note p{margin:4px 0 0}.table-scroll{border:1px solid var(--line);border-radius:var(--radius);background:#fff;margin-top:24px;overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:720px}th,td{border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;padding:14px 16px}thead th{background:var(--forest);color:#fff;letter-spacing:.03em;text-transform:uppercase;font-size:.72rem}tbody th{color:var(--forest)}tbody td,tbody th{font-size:.82rem}tbody tr:last-child td,tbody tr:last-child th{border-bottom:0}.guide-calculator{margin-inline:calc((min(100vw - 32px, var(--container)) - 100%) / -2)}.factor-list,.tip-list{margin:28px 0 0;padding:0;list-style:none}.factor-list li{border-top:1px solid var(--line);grid-template-columns:46px 1fr;align-items:center;gap:14px;padding:17px 0;display:grid}.factor-list li:last-child{border-bottom:1px solid var(--line)}.factor-list span{color:var(--coral);font-family:var(--font-geist-mono), monospace;font-size:.8rem}.tip-list{gap:10px;display:grid}.tip-list li{border-radius:var(--radius-sm);background:#edf3df;grid-template-columns:30px 1fr;gap:12px;padding:15px;display:grid}.tip-list span{background:var(--lime);width:24px;height:24px;color:var(--forest);border-radius:50%;place-items:center;font-weight:800;display:grid}.article-aside{display:none}.article-aside>div{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:20px;display:grid}.article-aside a{border-bottom:1px solid var(--line);color:var(--muted);padding:10px 0;font-size:.85rem}.article-aside .aside-cta{background:var(--forest);color:#fff;border:0;margin-top:16px}.aside-cta 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