:root{--bg:#fbfaf7;--ink:#1d2a2a;--mut:#5b6b6b;--brand:#1f7a5c;--brand2:#e8f4ee;--line:#e3e1da;--card:#fff;--r:12px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}img{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.logo{font-weight:800;font-size:1.2rem;text-decoration:none;color:var(--ink)}.logo span{color:var(--brand)}
nav a{margin-left:16px;text-decoration:none;color:var(--ink);font-weight:500}nav a:hover{color:var(--brand)}
@media(max-width:640px){nav{width:100%;padding-bottom:10px}nav a{margin:0 14px 0 0;font-size:.95rem}}
.hero{padding:64px 0 40px}.hero h1{font-size:clamp(1.9rem,4vw,2.8rem);line-height:1.2;margin:0 0 14px}.hero p{font-size:1.15rem;color:var(--mut);max-width:640px}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:12px 20px;border-radius:10px;text-decoration:none;font-weight:600;border:0;cursor:pointer;font-size:1rem}
.btn.alt{background:var(--brand2);color:var(--brand)}
.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.card h3{margin:0 0 6px}.card p{color:var(--mut);margin:0 0 14px}
section{padding:28px 0}h2{font-size:1.6rem}
.tag{display:inline-block;font-size:.8rem;background:var(--brand2);color:var(--brand);padding:2px 10px;border-radius:99px;font-weight:600}
.features li{margin:6px 0}
form.calc{display:grid;gap:14px;max-width:520px}
label{font-weight:600;display:block}input,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:1rem;background:#fff}
.check{display:flex;gap:8px;align-items:center;font-weight:500}.check input{width:auto}
.result{margin-top:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px}
.result table{width:100%;border-collapse:collapse}.result td{padding:6px 0;border-bottom:1px solid var(--line)}.result td:last-child{text-align:right;font-variant-numeric:tabular-nums}
.result tr.total td{font-weight:700}
.note{font-size:.9rem;color:var(--mut)}
.disclaimer{background:#fff7e6;border:1px solid #f1d9a6;border-radius:8px;padding:12px 14px;font-size:.92rem}
.ad-slot{min-height:90px;margin:24px 0;border:1px dashed var(--line);display:flex;align-items:center;justify-content:center;color:#aaa;font-size:.8rem}
.buy-slot{margin:20px 0;padding:18px;border:2px dashed var(--brand);border-radius:var(--r);background:var(--brand2);text-align:center}
.email-capture{display:flex;gap:10px;flex-wrap:wrap;max-width:520px}.email-capture input{flex:1 1 220px}
footer.site{border-top:1px solid var(--line);margin-top:48px;padding:28px 0;font-size:.9rem;color:var(--mut);background:#fff}
footer.site a{color:var(--mut);margin-right:14px}
.crumbs{font-size:.9rem;margin-top:20px;color:var(--mut)}
.buy-btn[aria-disabled="true"]{opacity:.6;pointer-events:none}.price-line{font-size:1.2rem}
.kit-form-slot{margin:36px 0;padding:24px;border-radius:var(--r);background:var(--brand2);border:1px solid #cfe6da}.kit-form-slot h2{margin-top:0}
/* Sticky footer: footer sits at the bottom on short pages, no strip below it */
body{min-height:100vh;display:flex;flex-direction:column}
body>main{flex:1 0 auto;width:100%}
footer.site{margin-bottom:0}
footer.site p:last-child{margin-bottom:0}
/* Single-column card grid on narrow screens */
@media(max-width:560px){.grid{grid-template-columns:1fr}}
/* Signup forms */
.hp{position:absolute!important;left:-10000px;width:1px;height:1px;overflow:hidden}
.signup-msg{width:100%;margin:6px 0 0}.signup-msg.ok{color:var(--brand);font-weight:600}.signup-msg.err{color:#b42318;font-weight:600}