:root{--ink:#1b2430;--muted:#5b6573;--line:#e3e6ea;--bg:#fff;--soft:#f6f8fb;--brand:#1f5eff;--brand-d:#1747c4;--err:#c62828;--warn:#b26a00;--info:#1f5eff;--radius:10px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}
body{margin:0;font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);overflow-wrap:break-word}
a{color:var(--brand)}
h1{font-size:2.3rem;line-height:1.15;margin:.2em 0 .4em;letter-spacing:-.02em}
h2{font-size:1.5rem;margin:1.2em 0 .5em;letter-spacing:-.01em}
h3{font-size:1.1rem;margin:.6em 0 .3em}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.center{text-align:center}
.section{padding:48px 20px}
.muted{color:var(--muted)}
.tiny{font-size:.82rem}
.lead{font-size:1.15rem;color:#323c48}
.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;color:var(--brand);font-weight:600;margin:0}
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:5;padding-top:env(safe-area-inset-top)}
.wrap{padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right))}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--ink);text-decoration:none;font-weight:500}
.nav-menu{display:none}
.nav-menu summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border:1.5px solid var(--line);border-radius:8px;font-weight:600;user-select:none}
.nav-menu summary::-webkit-details-marker{display:none}
.nav-menu[open] summary{background:var(--soft);border-color:var(--brand);color:var(--brand)}
.nav-menu nav{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(16,24,40,.08);padding:4px 0 8px}
.nav-menu nav a{display:flex;align-items:center;min-height:48px;padding:0 max(20px,env(safe-area-inset-left));color:var(--ink);text-decoration:none;font-weight:600;font-size:1.05rem}
.nav-menu nav a+a{border-top:1px solid var(--line)}
.nav-menu nav a.btn{margin:8px 20px 4px;justify-content:center;color:#fff;border-top:0}
.nav-menu nav a:active{background:var(--soft)}
.logo{font-weight:800;font-size:1.2rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:8px;min-height:44px}
.logo-mark{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:7px;background:var(--brand);color:#fff;font-size:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;text-align:center;background:var(--brand);color:#fff!important;border:0;border-radius:8px;padding:12px 20px;font-weight:600;font-size:1rem;text-decoration:none;cursor:pointer}
.btn:hover{background:var(--brand-d)}
.btn:active{background:var(--brand-d);transform:scale(.98)}
.btn-big{width:100%;padding:15px;font-size:1.08rem}
.btn-small{padding:7px 14px;font-size:.92rem;min-height:36px}
.btn-ghost{background:#fff;color:var(--brand)!important;border:1.5px solid var(--brand)}
.btn-ghost:hover{background:var(--soft)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 1px 2px rgba(16,24,40,.04)}
.hero{background:linear-gradient(180deg,#f3f6ff 0,#fff 100%);padding:56px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start}
.ticks{list-style:none;padding:0}
.ticks li{padding-left:28px;position:relative;margin:8px 0}
.ticks li:before{content:"\2713";position:absolute;left:0;color:var(--brand);font-weight:800}
.field{display:block;margin:0 0 16px}
.field span{display:block;font-weight:600;margin-bottom:6px}
.field em{font-weight:400;color:var(--muted);font-style:normal}
input[type=email],input[type=text],input[type=number],input[type=password],input[type=file],input[type=date],select,textarea{width:100%;min-height:44px;padding:11px 12px;border:1px solid #cdd3da;border-radius:8px;font:inherit;font-size:16px;background:#fff;color:var(--ink)}
input[type=date]{-webkit-appearance:none;appearance:none;display:block}
input[type=file]{padding:8px;background:var(--soft);border-style:dashed;cursor:pointer}
input[type=file]::file-selector-button{font:inherit;font-weight:600;color:var(--brand);background:#fff;border:1.5px solid var(--brand);border-radius:8px;padding:9px 14px;margin-right:12px;cursor:pointer}
input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid #8fadff;outline-offset:2px}
.project-details summary{cursor:pointer;display:list-item;padding:10px 0;font-weight:600;color:var(--brand)}
.project-details[open] summary{margin-bottom:12px}
.check{display:flex;gap:12px;align-items:center;min-height:44px;margin:0 0 8px;font-size:.93rem;cursor:pointer}
.check input{width:20px;height:20px;flex:none;margin:0;accent-color:var(--brand)}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}
.alert{background:#fdecea;color:var(--err);border-radius:8px;padding:10px 14px;margin-bottom:16px;font-weight:500}
.notice{background:var(--soft);border-left:3px solid var(--brand);border-radius:6px;padding:10px 14px;margin:12px 0}
.sources{padding-left:1.2em}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.band{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-card{background:var(--soft);margin:32px 0}
.pricing .plan ul{padding-left:18px;min-height:150px}
.plan .price{font-size:2.2rem;font-weight:800}
.plan .price span{font-size:1rem;color:var(--muted);font-weight:500}
.plan.featured{border:2px solid var(--brand)}
.subscribe{display:flex;gap:8px;flex-wrap:wrap}
.subscribe input{flex:1 1 200px;width:auto}
.subscribe .btn{flex:0 0 auto}
.subscribe.big{max-width:520px;margin:0 auto}
.site-footer{border-top:1px solid var(--line);padding:40px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1.5fr;gap:28px}
.footer-grid a{display:block;color:var(--muted);text-decoration:none;margin:0;padding:4px 0}
.site-footer{padding-bottom:max(24px,env(safe-area-inset-bottom))}
.legal-line{margin-top:24px}
.counts{display:flex;gap:10px;margin:12px 0 20px;flex-wrap:wrap}
.pill{border-radius:999px;padding:4px 12px;font-weight:600;font-size:.9rem}
.pill-error{background:#fdecea;color:var(--err)}
.pill-warning{background:#fff4e0;color:var(--warn)}
.pill-info{background:#e8efff;color:var(--info)}
.finding{border-left:4px solid var(--line);background:var(--soft);padding:12px 16px;margin:12px 0;border-radius:0 8px 8px 0}
.finding h3{margin:2px 0 4px}
.finding p{margin:4px 0}
.finding-error{border-color:var(--err)}
.finding-warning{border-color:var(--warn)}
.finding-info{border-color:var(--info)}
.finding-meta{font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.nums{font-size:.92rem;color:#323c48}
.callout{border-color:var(--err);background:#fff8f7;margin-bottom:16px}
.guide-link{display:block;text-decoration:none;color:inherit;margin:12px 0}
.prose{max-width:720px}
.prose table{border-collapse:collapse;width:100%}
.prose img{max-width:100%;height:auto}
.prose pre{overflow-x:auto}
.prose td,.prose th{border:1px solid var(--line);padding:6px 10px}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.results{width:100%;border-collapse:collapse;margin-top:8px}
.results td{padding:9px 4px;border-top:1px solid var(--line)}
.results td:last-child{text-align:right;font-variant-numeric:tabular-nums}
.results .strong td{font-weight:800;font-size:1.1rem}
@media (max-width:860px){.hero-grid,.grid3,.footer-grid,.calc-grid{grid-template-columns:1fr}h1{font-size:1.8rem}.hero{padding:32px 0 24px}.hero-grid{gap:24px}}
@media (max-width:720px){
.nav-links{display:none}.nav-menu{display:block}
.section{padding-top:32px;padding-bottom:32px}
.btn-small{min-height:44px}
.footer-grid a{padding:11px 0}
.footer-grid{gap:20px}
.prose table{display:block;overflow-x:auto}
.pricing .plan ul{min-height:0}
.subscribe .btn{flex:1 1 100%}
h2{font-size:1.3rem}
}
@media (prefers-reduced-motion:reduce){.btn:active{transform:none}}
.research-link{margin:16px 0 0}
.research-link a{display:inline-flex;align-items:center;min-height:44px;font-weight:600}
.research-form h2{font-size:1.1rem;margin:8px 0 12px}
.research-form textarea{resize:vertical;min-height:88px}
.research-form .check{align-items:flex-start;line-height:1.35;padding-top:10px}
/* Trial call to action shown instead of the checker form or template download (no paid access). */
.check-cta h2{margin-top:0}
.check-cta .btn-big{margin:6px 0 4px}
.check-cta .cta-signin a,.check-cta .tiny a{display:inline-flex;align-items:center;min-height:44px;font-weight:600}