/* Shared responsive styles for all website pages. */
:root{color-scheme:light;--ink:#172f41;--muted:#526575;--brand:#153a56;--accent:#087f73;--line:#dce5eb;--surface:#f3f7f9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);line-height:1.65;background:white}a{color:var(--accent);text-underline-offset:4px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #c78110;outline-offset:5px}.container{width:min(1120px,calc(100% - 40px));margin-inline:auto}.skip-link{position:absolute;top:-100px;left:20px;padding:10px;background:var(--brand);color:white;z-index:10}.skip-link:focus{top:12px}.site-header{border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:92px}.brand{font-weight:800;font-size:1.1rem;color:var(--brand);text-decoration:none;line-height:1.4}.brand span{display:block;font-size:.9rem;font-weight:500;letter-spacing:.05em}nav{display:flex;gap:24px}nav a{color:var(--muted);font-size:.93rem;text-decoration:none}nav a:hover,nav a[aria-current]{color:var(--accent);text-decoration:underline}.menu-toggle{display:none;border:1px solid var(--line);background:white;padding:8px 14px;border-radius:8px;font:inherit;cursor:pointer}.hero{padding:76px 0 48px;max-width:800px}.eyebrow{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;font-weight:750;color:var(--accent)}h1,h2,h3{line-height:1.2;letter-spacing:-.025em}h1{font-size:clamp(2.2rem,5vw,3.8rem);margin:16px 0 24px}h2{font-size:clamp(1.5rem,3vw,2rem)}h3{font-size:1.25rem}.hero p,.lead{font-size:1.15rem;color:var(--muted)}.button{display:inline-block;background:var(--accent);color:white;padding:13px 24px;border-radius:8px;text-decoration:none;font-weight:700;margin-top:12px}.button:hover{background:#06675e}.hero .small{font-size:.87rem;margin-top:20px}.ad{border:1px dashed #b6c5cf;border-radius:8px;background:var(--surface);min-height:125px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;color:var(--muted)}.ad span{font-size:.7rem;letter-spacing:.15em;text-transform:uppercase}.ad p{font-size:.85rem;margin:6px 0}.section{padding:52px 0}.section>p{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}.card{border:1px solid var(--line);border-radius:12px;padding:26px;display:flex;flex-direction:column;align-items:flex-start}.card h3 a{color:var(--ink);text-decoration:none}.card h3 a:hover{text-decoration:underline}.card p{color:var(--muted);flex-grow:1;margin-top:0}.status{font-size:.75rem;background:#e9f5f1;color:#17674f;border-radius:20px;padding:4px 10px;font-weight:650}.text-link{margin-top:20px;font-size:.93rem;font-weight:650}.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:32px}.panel h2:first-child{margin-top:0}.panel p{color:var(--muted)}.faq details{padding:20px 0;border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:650}.faq p{color:var(--muted)}.content-page{max-width:800px;padding:58px 0 72px;min-height:55vh}.content-page h1,.tool-heading h1{font-size:clamp(2.2rem,4vw,3rem)}.content-page h2{font-size:1.4rem;margin-top:32px}.content-page p,.content-page li{color:var(--muted)}.breadcrumbs{margin-top:28px;font-size:.85rem}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0}.breadcrumbs li+li::before{content:"/";margin-right:10px;color:var(--muted)}.tool-heading{padding:20px 0}.tool-layout{display:grid;grid-template-columns:2fr 1fr;gap:24px}.tool-layout h2{font-size:1.5rem}.explanation{min-height:0;padding-top:20px}.site-footer{border-top:1px solid var(--line);background:var(--surface);padding:36px 0;color:var(--muted);font-size:.9rem}.footer-inner{display:grid;grid-template-columns:1fr 1fr;gap:18px}.footer-inner p{margin:0 0 8px}.site-footer nav{flex-wrap:wrap;align-content:start;justify-content:flex-end;gap:14px 22px}.disclaimer,.copyright{grid-column:1/-1;font-size:.8rem}@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}nav{gap:18px}}@media(max-width:640px){.container{width:calc(100% - 32px)}.header-inner{flex-wrap:wrap;padding:18px 0;min-height:80px;gap:16px}#primary-navigation{width:100%;flex-wrap:wrap;gap:12px 24px}.menu-toggle:not([hidden]){display:block}#primary-navigation[data-collapsed="true"]{display:none}.hero{padding:44px 0 36px}.grid,.tool-layout,.footer-inner{grid-template-columns:1fr}.section{padding:36px 0}.card,.panel{padding:24px}.content-page{padding:36px 0 48px}.site-footer nav{justify-content:flex-start}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Profit margin calculator controls and results. */
.calculator-inputs{display:grid;grid-template-columns:1fr 1fr;gap:20px}.field label{display:block;font-weight:700;margin-bottom:8px}.field input{width:100%;min-width:0;padding:13px 14px;border:1px solid #a5b7c3;border-radius:8px;font:inherit;color:var(--ink);background:white}.field input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.field input[aria-invalid="true"]{border-color:#a32929}.calculator-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.calculator-actions .button{margin:0;border:1px solid transparent;font:inherit;font-weight:700;cursor:pointer}.calculator-actions .secondary{background:white;border-color:#a5b7c3;color:var(--ink)}.calculator-actions .secondary:hover{background:#e6eef2}.calculator-error{color:#a32929!important;font-weight:600}.calculator-results{margin-top:28px;border-top:1px solid var(--line);padding-top:8px}.result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.result-grid div{padding:16px;background:white;border:1px solid var(--line);border-radius:8px}.result-grid dt{font-size:.85rem;color:var(--muted)}.result-grid dd{margin:8px 0 0;font-size:1.4rem;font-weight:750;color:var(--brand);overflow-wrap:anywhere}.small{font-size:.85rem}.formulas p{overflow-wrap:anywhere}.tool-layout{align-items:start}[hidden]{display:none!important}@media(max-width:640px){.calculator-inputs,.result-grid{grid-template-columns:1fr}.calculator-actions .button{flex:1}.result-grid dd{font-size:1.6rem}}
/* Scoped SaaS presentation keeps other calculator pages unchanged. */
.business-calculator-page{background:linear-gradient(180deg,#edf5f8 0,#fff 580px)}
.business-calculator-page .site-header{background:#fff}
.business-calculator-page .tool-heading{max-width:820px;padding:32px 0 38px}
.business-calculator-page .tool-heading h1{font-size:clamp(2.35rem,5vw,3.65rem);letter-spacing:-.045em;margin-bottom:18px}
.business-calculator-page .lead{max-width:680px;font-size:1.2rem}
.tool-benefits{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:22px;color:var(--muted);font-size:.83rem;font-weight:600}
.tool-benefits span::before{content:"\2713";color:var(--accent);margin-right:7px}
.business-calculator-page .tool-layout{grid-template-columns:minmax(0,1fr) 260px;gap:28px}
.business-calculator-page .calculator-panel{background:white;border-radius:18px;padding:36px;box-shadow:0 10px 36px #153a560b}
.business-calculator-page #input-help{max-width:620px;font-size:.9rem;margin-bottom:26px}
.field small{display:block;color:var(--muted);font-size:.8rem;margin-top:8px;line-height:1.5}
.business-calculator-page .field input{font-size:1.15rem;padding:15px 16px;min-height:54px}
.business-calculator-page .calculator-actions .button{min-height:48px;padding:12px 24px}
.example-button{background:transparent;border:0;padding:10px 0;color:var(--accent);font:inherit;font-size:.85rem;font-weight:650;cursor:pointer;flex-basis:100%;text-align:left;text-decoration:underline;text-underline-offset:4px;min-height:44px}
.business-calculator-page .calculator-results{margin-top:30px;padding-top:12px}
.business-calculator-page .calculator-results h2{font-size:1.1rem;letter-spacing:0}
.business-calculator-page #result-prompt{padding:20px;background:var(--surface);border-radius:10px;font-size:.95rem}
.business-calculator-page .result-grid{gap:12px;margin:18px 0}
.business-calculator-page .result-grid>div{padding:20px 16px;background:var(--surface);border:1px solid transparent}
.business-calculator-page .result-grid .primary-result{background:#edf8f4;border-color:#b9dcd0}
.business-calculator-page .result-grid dd{font-size:clamp(1.35rem,2.4vw,1.8rem);font-variant-numeric:tabular-nums;line-height:1.3;letter-spacing:-.025em}
.business-calculator-page .result-grid .metric-help{font-size:.72rem;line-height:1.5;margin:10px 0 0}
.business-calculator-page [data-outcome="loss"] #profit-result,.business-calculator-page [data-outcome="loss"] #margin-result{color:#a32929}
.business-calculator-page #result-note{line-height:1.7}
.business-calculator-page .explanation{max-width:820px;padding-top:28px;padding-bottom:64px}
.business-calculator-page .explanation>section{padding-top:24px;margin-bottom:24px;scroll-margin-top:24px}
.business-calculator-page .explanation h2{font-size:clamp(1.45rem,3vw,1.8rem);margin-top:0;margin-bottom:18px}
.business-calculator-page .explanation p,.business-calculator-page .explanation li{line-height:1.85}
.business-calculator-page .explanation li{padding-left:6px;margin-bottom:12px}
.business-calculator-page .formulas{background:#edf4f7;padding:22px 28px}
.business-calculator-page .formulas p{margin:8px 0;color:var(--brand)}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:24px 0}
.table-scroll:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.table-scroll table{border-collapse:collapse;width:100%;min-width:520px;font-size:.9rem;text-align:left}
.table-scroll caption{text-align:left;padding:16px 20px;font-weight:700;background:var(--surface)}
.table-scroll th,.table-scroll td{padding:16px 20px;border-top:1px solid var(--line);vertical-align:top}
.table-scroll thead{background:#edf4f7}.table-scroll td{color:var(--muted)}
.business-calculator-page .faq details{background:white;border:1px solid var(--line);border-radius:10px;margin-bottom:12px;padding:0}
.business-calculator-page .faq summary{padding:20px;line-height:1.5}
.business-calculator-page .faq details[open]{border-color:#a3c9bd}
.business-calculator-page .faq details p{margin:0;padding:0 20px 20px}
@media(max-width:960px){.business-calculator-page .tool-layout{grid-template-columns:minmax(0,1fr)}.business-calculator-page .tool-layout>.ad{min-height:100px}}
@media(max-width:640px){.business-calculator-page .tool-heading{padding:24px 0}.business-calculator-page .calculator-panel{padding:24px 20px;border-radius:14px}.tool-benefits{gap:8px 16px}.business-calculator-page .calculator-inputs{gap:22px}.business-calculator-page .result-grid>div{padding:18px}.business-calculator-page .result-grid dd{font-size:1.85rem}.business-calculator-page .explanation>section{padding-top:20px}.business-calculator-page .formulas{padding:16px 20px}.business-calculator-page .faq summary{padding:18px}.business-calculator-page .explanation{padding-bottom:44px}}
/* Two-metric calculators share the existing responsive result cards. */
.business-calculator-page .result-grid.two-results{grid-template-columns:repeat(2,minmax(0,1fr))}
.business-calculator-page [data-outcome="loss"] #roi-profit-result,.business-calculator-page [data-outcome="loss"] #roi-percentage-result{color:#a32929}
@media(max-width:640px){.business-calculator-page .result-grid.two-results{grid-template-columns:1fr}}
/* Highlight the ad-spend-only loss without changing ROAS ratio colors. */
.business-calculator-page [data-outcome="loss"] #roas-profit-result{color:#a32929}
/* Keep the period total distinct from the two per-unit inputs. */
.calculator-inputs .full-width{grid-column:1/-1}
.business-calculator-page [data-outcome="loss"] #contribution-result{color:#a32929}

/* Language selection is available independently of the mobile menu. */
.site-brand{display:flex;align-items:center;flex:0 1 auto;min-width:0;max-width:100%;text-decoration:none}
.site-brand img{display:block;max-height:58px;width:auto;max-width:100%;height:auto;object-fit:contain}
@media(max-width:768px){.site-brand img{max-height:42px}}
.header-inner{flex-wrap:wrap;padding-block:18px}
.language-switcher{flex-wrap:wrap;gap:4px;padding:4px;border:1px solid var(--line);border-radius:8px}
.language-switcher a{padding:5px 9px;font-size:.82rem;border-radius:5px;white-space:nowrap}
.language-switcher a[aria-current="page"]{background:var(--brand);color:white;text-decoration:none}
@media(max-width:640px){.language-switcher{order:2;width:100%;justify-content:center}#primary-navigation{order:3}}

/* Keep expanded navigation and contact information usable on narrow screens. */
#primary-navigation{flex-wrap:wrap}
.language-switcher a{display:inline-flex;align-items:center;justify-content:center;min-height:44px}
.contact-address{overflow-wrap:anywhere;font-size:1.1rem}
@media(max-width:640px){#primary-navigation a,.site-footer nav a{display:inline-flex;align-items:center;min-height:44px}}