:root{--ink:#171713;--paper:#f4f0e8;--surface:#fffdf8;--muted:#716f68;--line:#d9d3c7;--accent:#b7f34a;--accent-dark:#94d227;--blue:#335cff;--danger:#bd382e;--warning:#a66300;--ok:#27783d;--shadow:0 22px 70px rgba(37,34,26,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.5}button,input,select{font:inherit}button,a{touch-action:manipulation}.skip-link{position:fixed;left:16px;top:-100px;z-index:120;background:var(--ink);color:#fff;padding:10px 14px}.skip-link:focus{top:16px}.site-header{max-width:1320px;margin:auto;padding:24px 32px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand img{display:block;width:min(360px,47vw);height:auto}.site-header nav{display:flex;gap:22px}.site-header nav a{font-size:13px;color:var(--ink);text-decoration:none;border-bottom:1px solid;white-space:nowrap}
.hero{max-width:1320px;margin:52px auto 46px;padding:0 32px;display:grid;grid-template-columns:1.45fr .55fr;gap:60px;align-items:end}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:700;margin:0 0 22px}.hero h1{font-size:clamp(47px,6.6vw,94px);line-height:.94;letter-spacing:-.065em;margin:0}.hero h1 em{font-family:Georgia,serif;font-weight:400}.hero>p{font-size:18px;color:#55534d;margin:0 0 8px}.calculator{max-width:1320px;margin:auto;background:var(--surface);border:1px solid var(--line);border-radius:32px;box-shadow:var(--shadow);overflow:hidden;display:grid;grid-template-columns:minmax(0,.92fr) minmax(470px,1.08fr)}.inputs{padding:34px;border-right:1px solid var(--line);min-width:0}.results{padding:34px;background:#eeeadf;min-width:0}.form-top,.results-head,.section-title,.block-title{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.form-top,.results-head{margin-bottom:25px}.form-top>div,.results-head>div{display:flex;align-items:center;gap:12px}.step{font-size:11px;font-weight:700;color:var(--muted);letter-spacing:.08em}.form-top h2,.results-head h2{font-size:23px;margin:0}.text-button{border:0;background:transparent;text-decoration:underline;text-underline-offset:4px;color:var(--muted);padding:3px;cursor:pointer;font-size:13px}
.scope-switch{border:0;padding:0;margin:0 0 24px}.scope-switch legend{font-size:13px;font-weight:700;margin-bottom:8px}.scope-switch>div{display:grid;grid-template-columns:1fr 1fr;background:#ece7dd;padding:4px;border-radius:12px}.scope-tab{border:0;background:transparent;padding:11px;border-radius:9px;font-weight:700;cursor:pointer}.scope-tab.active{background:var(--ink);color:#fff}.period-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:8px}.date-range{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:7px}.field>span,.section-title>span{font-size:13px;font-weight:700}.field b{color:var(--danger)}input,select{width:100%;border:1px solid #cfc8bc;border-radius:11px;background:#fff;padding:12px 13px;color:var(--ink);outline:none}input:focus,select:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,23,19,.08)}.check{display:flex;align-items:center;gap:9px;font-size:13px;padding-top:28px}.check input{width:18px;height:18px;accent-color:var(--ink)}.hint{font-size:11px;color:var(--muted);margin:8px 0 25px}.section-title{padding-top:22px;border-top:1px solid var(--line);margin-bottom:15px}.section-title small{font-size:11px;color:var(--muted)}.campaign-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.wide{grid-column:1/-1}.input-unit{position:relative}.input-unit input{padding-right:38px}.input-unit i{position:absolute;right:13px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--muted);font-style:normal}.account-head,.account-row{display:grid;grid-template-columns:1.05fr 1.45fr .65fr .65fr 34px;gap:8px;align-items:center}.account-head{font-size:10px;color:var(--muted);padding:0 5px 6px}.account-row{padding:9px 0;border-top:1px solid var(--line)}.account-row input,.account-row select{padding:10px;font-size:12px}.remove-row{border:1px solid var(--line);background:transparent;border-radius:8px;width:32px;height:38px;cursor:pointer;color:var(--danger)}
.status{font-size:11px;border:1px solid #bdb6aa;border-radius:999px;padding:6px 9px;color:var(--muted);white-space:nowrap}.status.ready{background:var(--ink);border-color:var(--ink);color:#fff}.empty-results{text-align:center;max-width:390px;margin:120px auto;color:var(--muted)}.empty-results h3{color:var(--ink);font-size:20px;margin:18px 0 8px}.empty-results p{font-size:14px}.formula-mark{width:100px;height:100px;border-radius:50%;background:var(--accent);display:grid;place-items:center;margin:auto;font-weight:800;font-size:18px}.headline-metrics{display:grid;grid-template-columns:1fr 1fr;gap:8px}.headline-metrics article{background:var(--surface);border:1px solid var(--line);border-radius:15px;padding:17px}.headline-metrics article:first-child{background:var(--ink);color:#fff;border-color:var(--ink)}.headline-metrics span,.metric-grid span{display:block;font-size:11px;color:var(--muted)}.headline-metrics article:first-child span,.headline-metrics article:first-child small{color:#aaa89f}.headline-metrics strong{display:block;font-size:clamp(25px,3vw,39px);letter-spacing:-.045em;margin:4px 0;white-space:nowrap}.headline-metrics article:first-child strong{color:var(--accent)}.headline-metrics small,.metric-grid small{font-size:9px;color:var(--muted)}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin-top:8px}.metric-grid article{background:rgba(255,255,255,.7);border:1px solid #d8d2c7;border-radius:11px;padding:11px;min-width:0}.metric-grid strong{display:block;font-size:16px;margin:3px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.breakdown,.diagnostics{margin-top:26px}.block-title{align-items:end;margin-bottom:11px}.block-title h3{font-size:16px;margin:0}.block-title span{font-size:10px;color:var(--muted)}.breakdown-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;padding:10px 12px;background:rgba(255,255,255,.7);border-bottom:1px solid var(--line);font-size:12px}.breakdown-row:first-child{border-radius:10px 10px 0 0}.breakdown-row:last-child{border-radius:0 0 10px 10px;border-bottom:0}.breakdown-row small{display:block;color:var(--muted)}.diagnostic{background:rgba(255,255,255,.72);border-left:4px solid var(--ok);border-radius:8px;padding:10px 12px;margin-top:7px}.diagnostic.warning{border-color:#dfa633}.diagnostic.bad{border-color:var(--danger)}.diagnostic strong{font-size:12px}.diagnostic p{font-size:10px;color:var(--muted);margin:2px 0 0}.result-actions{display:flex;gap:9px;margin-top:22px}.primary-button,.secondary-button{border-radius:11px;padding:12px 15px;font-weight:700;cursor:pointer}.primary-button{background:var(--accent);border:0;color:#182003;flex:1}.secondary-button{background:transparent;border:1px solid var(--ink);color:var(--ink)}
.method,.faq{max-width:1320px;margin:110px auto;padding:0 32px;display:grid;grid-template-columns:.7fr 1.3fr;gap:75px}.method h2,.faq h2{font-size:clamp(36px,4.5vw,62px);line-height:1;letter-spacing:-.05em;margin:0}.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.method article{background:var(--paper);padding:24px}.method b{font:700 12px ui-monospace,monospace;color:var(--blue)}.method h3{font-size:17px;margin:38px 0 8px}.method article p{font-size:13px;color:var(--muted);margin:0}.faq-list{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line);padding:18px 0}.faq summary{font-weight:700;cursor:pointer;margin-left:20px}.faq details p{font-size:14px;color:var(--muted);margin:12px 0 2px 20px;max-width:720px}.cta{background:var(--blue);color:#fff;padding:78px max(32px,calc((100vw - 1256px)/2))}.cta h2{font-size:clamp(38px,5vw,72px);letter-spacing:-.05em;line-height:1;margin:0;max-width:920px}.cta a{display:inline-flex;gap:22px;align-items:center;background:#fff;color:var(--blue);border-radius:12px;padding:14px 18px;font-weight:700;text-decoration:none;margin-top:28px}footer{max-width:1320px;margin:auto;padding:28px 32px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}footer a{color:inherit}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,30px);background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.25s;z-index:100}.toast.show{opacity:1;transform:translate(-50%,0)}
.cookie-notice{position:fixed;z-index:110;left:24px;right:24px;bottom:24px;max-width:860px;margin:auto;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--ink);color:#fff;border:1px solid #3a3a34;border-radius:18px;box-shadow:0 18px 60px rgba(0,0,0,.28)}.cookie-notice[hidden]{display:none}.cookie-notice strong{display:block;margin-bottom:3px}.cookie-notice p{margin:0;color:#d4d2ca;font-size:13px;max-width:680px}.cookie-notice a{color:#fff}.cookie-notice button{min-width:105px;border:0;border-radius:12px;padding:13px 17px;background:var(--accent);font-weight:700;cursor:pointer}
@media(max-width:1050px){.calculator{grid-template-columns:1fr}.inputs{border-right:0;border-bottom:1px solid var(--line)}.results{min-height:500px}.site-header nav{gap:10px 16px;justify-content:flex-end;flex-wrap:wrap}.metric-grid{grid-template-columns:1fr 1fr}}
@media(max-width:800px){.hero,.method,.faq{grid-template-columns:1fr;gap:28px}.method-grid{grid-template-columns:1fr}.account-head{display:none}.account-row{grid-template-columns:1fr 1fr}.account-row .remove-row{grid-column:2;justify-self:end}.site-header{align-items:flex-start}}
@media(max-width:620px){.site-header,.hero,.method,.faq{padding-left:18px;padding-right:18px}.site-header{flex-direction:column}.site-header nav{justify-content:flex-start}.hero h1{font-size:43px}.calculator{border-radius:0;border-left:0;border-right:0}.inputs,.results{padding:22px 17px}.period-grid,.campaign-grid,.date-range,.headline-metrics,.metric-grid{grid-template-columns:1fr}.check{padding-top:0}.wide{grid-column:auto}.account-row{grid-template-columns:1fr}.account-row .remove-row{grid-column:1}.result-actions{flex-direction:column}.method,.faq{margin:75px auto}.cta{padding:60px 20px}footer{padding:24px 20px;flex-direction:column}.cookie-notice{left:12px;right:12px;bottom:12px;align-items:stretch;flex-direction:column;gap:14px;padding:17px}.cookie-notice button{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.toast{transition:none}}
