stiluri comune

:root{
–bg:#f6f7f9; –fg:#223; –muted:#667; –brand:#0a66cc;
–card:#fff; –border:#e5e8ee; –ok:#138a07; –warn:#b76e00;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(–fg);background:var(–bg);line-height:1.6}
a{color:var(–brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1080px;margin:0 auto;padding:0 16px}
.flex{display:flex;gap:12px}
.between{justify-content:space-between}
.center-v{align-items:center}
.center{text-align:center}

.site-header,.site-footer{background:#fff;border-bottom:1px solid var(–border)}
.site-footer{border-top:1px solid var(–border);border-bottom:none;padding:16px 0}
.site-header .brand{font-weight:700}
.nav a{margin-left:16px}
.btn{display:inline-block;background:var(–brand);color:#fff;padding:12px 16px;border-radius:8px}
.btn:hover{text-decoration:none;opacity:.95}
.btn–ghost{background:transparent;border:1px solid var(–brand);color:var(–brand)}
.btn–sm{padding:8px 12px;font-size:.95rem}

.hero{background:#0a66cc0d;padding:48px 0}
.hero h1{margin:.2em 0 0}
.subtitle{margin:.25em 0 .5em;color:var(–muted)}
.pillars{color:#0a3f77}

.context,.why,.layers,.together,.packages,.screening,.faq{padding:36px 0}
.check{list-style:none;padding:0;margin:0}
.check li{padding-left:28px;position:relative;margin-bottom:8px}
.check li::before{content:”✔”;position:absolute;left:0;color:var(–ok)}

.grid{display:grid;gap:16px}
.grid–form{grid-template-columns:repeat(3,1fr)}
@media (max-width:800px){
.grid–form{grid-template-columns:1fr}
}

.card{background:var(–card);border:1px solid var(–border);border-radius:10px;padding:16px}
.note{font-size:.9rem;color:var(–muted)}
.muted{color:var(–muted);font-size:.95rem}
.warn{color:var(–warn)}

.breadcrumb{margin:12px 0;color:var(–muted)}
.breadcrumb a{color:inherit}

fieldset{border:1px solid var(–border);border-radius:10px;padding:12px;margin:12px 0}
label{display:block;margin:6px 0}
input,select{width:100%;padding:10px;border:1px solid var(–border);border-radius:8px;background:#fff}
input:invalid{border-color:#e08}
input:focus,select:focus{outline:2px solid #9bd}

.result{margin-top:16px;padding:16px;border:1px solid var(–border);border-radius:10px;background:#f0f7ff}
.hidden{display:none}
.cta-group{display:flex;gap:12px;flex-wrap:wrap;margin:12px 0}

details{background:#fff;border:1px solid var(–border);border-radius:10px;padding:10px;margin:10px 0}
details summary{cursor:pointer;font-weight:600}