/* ===== Radon Guys USA — shared styles ===== */
:root{
  --green:#8FC805;
  --green-d:#76a800;
  --ink:#111418;
  --ink-2:#1a1f25;
  --panel:#21272e;
  --gray:#5b6470;
  --line:#e6e8eb;
  --bg:#ffffff;
  --bg-soft:#f5f7f4;
  --radius:14px;
  --shadow:0 10px 30px rgba(17,20,24,.10);
  --maxw:1140px;
  --font:"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
section{padding:84px 0}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em;font-weight:800}
h1{font-size:clamp(2.2rem,5vw,3.7rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h3{font-size:1.25rem}
.eyebrow{display:inline-block;font-weight:800;letter-spacing:.14em;text-transform:uppercase;font-size:.78rem;color:var(--green-d);margin-bottom:14px}
.lead{font-size:1.15rem;color:var(--gray);max-width:62ch}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:800;font-size:1.02rem;padding:15px 30px;border-radius:999px;border:2px solid transparent;cursor:pointer;transition:.18s transform,.18s box-shadow,.18s background;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-green{background:var(--green);color:#10130a;box-shadow:0 8px 22px rgba(143,200,5,.4)}
.btn-green:hover{background:#9ed80a}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{border-color:#fff}
.btn-outline{background:#fff;border-color:var(--ink);color:var(--ink)}
.btn-lg{padding:18px 38px;font-size:1.12rem}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(17,20,24,.96);backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.nav .logo img{height:42px}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-links a{color:#dfe3e7;font-weight:600;font-size:.95rem;white-space:nowrap}
.nav-links a:hover{color:var(--green)}
.nav-cta{background:var(--green);color:#10130a !important;padding:10px 20px;border-radius:999px;font-weight:800;white-space:nowrap}
.nav-cta:hover{background:#9ed80a}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer}

/* hero */
.hero{position:relative;color:#fff;padding:118px 0 104px;overflow:hidden;background-color:#0a0e13;
  background-image:
    linear-gradient(95deg, rgba(10,14,19,.95) 0%, rgba(10,14,19,.86) 36%, rgba(10,14,19,.5) 68%, rgba(10,14,19,.32) 100%),
    url('hero-home.svg');
  background-size:cover,cover;background-position:center,center bottom;background-repeat:no-repeat}
.hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:6px;background:var(--green)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center;position:relative;z-index:2}
.hero h1{color:#fff;font-size:clamp(2.5rem,5.6vw,4.4rem);line-height:1.05;text-shadow:0 2px 30px rgba(0,0,0,.5)}
.hero h1 .hl{color:var(--green)}
.hero p.sub{font-size:clamp(1.12rem,1.7vw,1.4rem);color:#dde2e7;margin:22px 0 32px;max-width:56ch;line-height:1.5}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.trust-row{display:flex;gap:22px;flex-wrap:wrap;margin-top:28px;color:#aeb6bf;font-size:.92rem;font-weight:600}
.trust-row span{display:flex;align-items:center;gap:7px}
.trust-row .dot{color:var(--green);font-size:1.1rem}

/* offer card */
.offer-card{background:#fff;color:var(--ink);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}
.offer-card .top{background:var(--green);color:#10130a;padding:16px 24px;font-weight:800;letter-spacing:.04em;display:flex;justify-content:space-between;align-items:center}
.offer-card .body{padding:26px 26px 30px}
.offer-card .price{font-size:3.2rem;font-weight:800;letter-spacing:-.03em;line-height:1}
.offer-card .price small{font-size:1rem;color:var(--gray);font-weight:600}
.offer-card ul{list-style:none;margin:18px 0 22px}
.offer-card li{padding:7px 0 7px 30px;position:relative;color:#2c333b}
.offer-card li:before{content:"✓";position:absolute;left:0;color:var(--green-d);font-weight:900}
.offer-card .btn{width:100%;justify-content:center}
.fineprint{font-size:.82rem;color:var(--gray);margin-top:12px;text-align:center}

/* sections */
.bg-soft{background:var(--bg-soft)}
.bg-dark{background:var(--ink);color:#fff}
.bg-dark .lead{color:#b9c0c8}
.grid{display:grid;gap:24px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card .ic{width:52px;height:52px;border-radius:12px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:1.5rem}
.bg-dark .card{background:var(--panel);border-color:rgba(255,255,255,.08);color:#eef1f3}
.bg-dark .card .ic{background:rgba(143,200,5,.14)}

/* steps */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:8px}
.step .n{width:46px;height:46px;border-radius:50%;background:var(--green);color:#10130a;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:1.2rem;margin-bottom:14px}
.step h3{margin-bottom:6px}
.step p{color:var(--gray);font-size:.97rem}

/* kit tiers */
.kits{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:14px}
.kit{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column}
.kit.featured{border:2px solid var(--green);box-shadow:var(--shadow);position:relative}
.kit .tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--green);color:#10130a;font-weight:800;font-size:.72rem;letter-spacing:.08em;padding:5px 14px;border-radius:999px;text-transform:uppercase}
.kit h3{font-size:1.15rem}
.kit .kp{font-size:2.4rem;font-weight:800;margin:6px 0 2px}
.kit .meter{font-size:.9rem;color:var(--gray);font-weight:600;margin-bottom:14px}
.kit ul{list-style:none;margin:0 0 22px;flex:1}
.kit li{padding:6px 0 6px 26px;position:relative;font-size:.95rem;color:#2c333b}
.kit li:before{content:"✓";position:absolute;left:0;color:var(--green-d);font-weight:900}
.kit .btn{width:100%;justify-content:center;margin-top:auto}

/* pricing */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tier{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;text-align:center}
.tier.featured{border:2px solid var(--green);box-shadow:var(--shadow)}
.tier h3{font-size:1.3rem}
.tier .tp{font-size:2.6rem;font-weight:800;margin:10px 0}
.tier ul{list-style:none;text-align:left;margin:18px 0 24px}
.tier li{padding:7px 0 7px 26px;position:relative;color:#2c333b;font-size:.96rem}
.tier li:before{content:"✓";position:absolute;left:0;color:var(--green-d);font-weight:900}

/* guarantee band */
.guarantee{background:linear-gradient(110deg,var(--ink) 60%,var(--ink-2));color:#fff;border-radius:20px;padding:48px;display:grid;grid-template-columns:120px 1fr;gap:30px;align-items:center}
.guarantee .seal{width:120px;height:120px;border-radius:50%;border:4px solid var(--green);display:flex;align-items:center;justify-content:center;text-align:center;font-weight:800;color:var(--green);font-size:.85rem;line-height:1.2}
.guarantee h2{color:#fff}
.guarantee p{color:#c7ccd2;margin-top:8px}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 22px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;padding:18px 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--green-d);font-size:1.5rem;font-weight:800}
.faq details[open] summary:after{content:"–"}
.faq details p{padding:0 0 20px;color:var(--gray)}

/* service area */
.towns{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.towns span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-weight:600;font-size:.92rem}
.bg-dark .towns span{background:var(--panel);border-color:rgba(255,255,255,.1)}

/* CTA / forms */
.form{display:grid;gap:14px;max-width:560px}
.form.two{grid-template-columns:1fr 1fr}
.form .full{grid-column:1/-1}
.form label{font-weight:700;font-size:.88rem;margin-bottom:4px;display:block}
.form input,.form select,.form textarea{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff}
.form textarea{min-height:120px;resize:vertical}
.form .btn{justify-self:start}
.bg-dark .form input,.bg-dark .form select,.bg-dark .form textarea{background:#fff;border-color:transparent}

/* franchise teaser */
.teaser{background:var(--green);color:#10130a;border-radius:20px;padding:46px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.teaser h2{color:#10130a}
.teaser p{max-width:60ch;font-weight:600;margin-top:6px}

/* footer */
.site-footer{background:#0c0e11;color:#aab1ba;padding:60px 0 30px;font-size:.93rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.site-footer img{height:40px;margin-bottom:14px}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:14px;letter-spacing:.04em}
.site-footer a{display:block;padding:5px 0;color:#aab1ba}
.site-footer a:hover{color:var(--green)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem;color:#6b727b}

/* meet the team */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.tech-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.tech-photo{aspect-ratio:4/3;background:linear-gradient(135deg,#eef3e6,#dfead0);display:flex;align-items:center;justify-content:center}
.tech-photo svg{width:96px;height:96px;opacity:.55}
.tech-photo img{width:100%;height:100%;object-fit:cover}
.tech-body{padding:22px;display:flex;flex-direction:column;flex:1}
.tech-role{color:var(--green-d);font-weight:800;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}
.tech-name{font-size:1.3rem;font-weight:800;margin:2px 0 8px}
.tech-bio{color:var(--gray);font-size:.95rem}
.verified{display:inline-flex;align-items:center;gap:7px;background:#eef7e1;border:1px solid #cfe6a6;border-radius:999px;padding:7px 13px;font-size:.82rem;font-weight:700;color:#3c5e01;margin-top:14px;align-self:flex-start;text-decoration:none}
.verified:hover{background:#e6f3d2}
.verified .chk{font-weight:900}
.tech-meta{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;gap:12px}
.tech-fam{width:60px;height:60px;border-radius:12px;flex:none;background:linear-gradient(135deg,#eef3e6,#dfead0);display:flex;align-items:center;justify-content:center;overflow:hidden}
.tech-fam svg{width:34px;height:34px;opacity:.5}
.tech-fam img{width:100%;height:100%;object-fit:cover}
.tech-meta p{font-size:.85rem;color:var(--gray)}
@media(max-width:900px){.team-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.team-grid{grid-template-columns:1fr}}

/* page hero (sub pages) */
.page-hero{background:radial-gradient(900px 500px at 80% -20%,#2b333c,var(--ink));color:#fff;padding:80px 0 64px;border-bottom:6px solid var(--green)}
.page-hero h1{color:#fff}
.page-hero p{color:#c7ccd2;font-size:1.15rem;margin-top:14px;max-width:62ch}

.note{background:#fff8e1;border:1px solid #f3e0a0;border-radius:10px;padding:14px 18px;font-size:.9rem;color:#6b5b16}

/* responsive */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .g3,.g4,.steps,.kits,.tiers{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .guarantee{grid-template-columns:1fr;text-align:center;justify-items:center}
  .nav-links{display:none;position:absolute;top:74px;left:0;right:0;background:var(--ink);flex-direction:column;padding:18px 22px;gap:6px;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 0;width:100%}
  .menu-btn{display:block}
}
@media(max-width:560px){
  section{padding:60px 0}
  .nav .logo img{height:34px}
  .g3,.g4,.steps,.kits,.tiers,.g2,.form.two,.foot-grid{grid-template-columns:1fr}
  .guarantee{padding:32px}
}