/*
Theme Name: Canvas Radon VA
Author: Hermes Web Agent
Description: Virginia Radon Remediation — independent radon lead-gen property. Clinical teal/navy health-safety design system (redesign 2026-08-07, step-above competitive bar). Chrome + head meta + Organization/WebSite/Service schema are theme-owned; page bodies are engine-rendered component HTML; per-site data lives in the hermes_site_config option.
Version: 2.0
*/

:root{
  --bg:#F3F7FA; --panel:#FFFFFF; --band:#E7F0F5; --band-2:#DCE8EF;
  --ink:#0B1E33; --ink-soft:#20364F; --muted:#4B6072; --faint:#7489A0; --hair:#D3E0E9; --hair-soft:#E4EDF3;
  --teal:#0E7490; --teal-deep:#0B4F63; --teal-bright:#1394B0; --teal-wash:#EAF5F8;
  --good:#15803D; --danger:#B42318; --danger-wash:#FCECEA;
  --cta:#D6480B; --cta-2:#EE6A1E; --cta-ink:#FFFFFF; --cta-glow:rgba(214,72,11,.26);
  --navy:#0B1E33; --navy-2:#122b46;
  --header-bg:rgba(243,247,250,.86);
  --footer-bg:#0A1B2E; --footer-ink:#E8EFF6; --footer-muted:#9DB1C6; --footer-hair:#243A54; --footer-accent:#40C0D8;
  --pill-hot-bg:#FBE7E4; --pill-hot-ink:#9B1C1C;
  --shadow-sm:0 2px 8px rgba(11,30,51,.06);
  --shadow-md:0 12px 30px rgba(11,30,51,.09);
  --shadow-lg:0 30px 70px rgba(11,30,51,.16);
  --display:'Source Serif 4',Georgia,'Times New Roman',serif;
  --sans:'Public Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:ui-monospace,'SF Mono','Roboto Mono',Menlo,monospace;
  --maxw:1160px;
  --r-sm:10px; --r:14px; --r-lg:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--display);line-height:1.1;letter-spacing:-.015em;color:var(--ink);margin:0 0 .5em;text-wrap:balance}
h1{font-size:clamp(2.25rem,4.6vw,3.55rem);font-weight:700}
h2{font-size:clamp(1.7rem,3.3vw,2.5rem);font-weight:700}
h3{font-size:1.24rem;font-weight:700}
p{margin:0 0 1.1em;color:var(--muted);max-width:66ch}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%;height:auto}
strong,b{color:var(--ink-soft)}
:focus-visible{outline:3px solid var(--teal-bright);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:.7rem 1rem;z-index:200;border-radius:0 0 8px 0}
.skip:focus{left:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:92px 0;position:relative}
.section.tight{padding:60px 0}
.section.band{background:linear-gradient(180deg,var(--band),var(--band-2))}
.section.dark{background:radial-gradient(120% 100% at 80% -10%,var(--navy-2),var(--navy) 60%);color:var(--footer-ink)}
.section.dark h2,.section.dark h3,.section.dark h4{color:#fff}
.section.dark p{color:var(--footer-muted)}
.section.dark a{color:var(--footer-accent)}
.center{text-align:center;margin-left:auto;margin-right:auto}
.lead{font-size:1.2rem;max-width:60ch;color:var(--ink-soft)}
.section.dark .lead{color:#cfe0ee}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--teal);
  display:inline-flex;align-items:center;gap:.6rem;margin:0 0 1.1rem;font-weight:700}
.eyebrow::before{content:"";width:26px;height:2px;background:currentColor}
.section.dark .eyebrow{color:var(--footer-accent)}
.eyebrow.center{justify-content:center}
.micro{font-family:var(--mono);font-size:.7rem;letter-spacing:.05em;color:var(--faint)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;font-weight:700;font-size:1.02rem;
  padding:1rem 1.7rem;border-radius:var(--r-sm);border:2px solid transparent;cursor:pointer;font-family:var(--sans);
  transition:transform .16s ease,box-shadow .22s ease,background .16s,border-color .16s,color .16s;text-decoration:none;line-height:1.1}
.btn-primary{background:linear-gradient(135deg,var(--cta-2),var(--cta));color:var(--cta-ink);box-shadow:0 10px 26px var(--cta-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 38px var(--cta-glow);color:var(--cta-ink);text-decoration:none}
.btn-ghost{border-color:var(--hair);color:var(--ink);background:var(--panel)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal);text-decoration:none}
.section.dark .btn-ghost{border-color:rgba(255,255,255,.28);color:#fff;background:transparent}
.section.dark .btn-ghost:hover{border-color:var(--footer-accent);color:var(--footer-accent)}
.btn .arw{transition:transform .16s}
.btn:hover .arw{transform:translateX(3px)}

/* header / nav */
.site-header{position:sticky;top:0;z-index:100;background:var(--header-bg);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--hair)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:1.2rem}
.brand{display:flex;align-items:center;gap:.7rem;font-family:var(--display);font-weight:700;font-size:1.14rem;color:var(--ink);text-decoration:none;line-height:1.05}
.brand:hover{text-decoration:none}
.brand .mark{flex:0 0 auto;display:block}
.brand-text small{display:block;font-family:var(--mono);font-weight:600;font-size:.56rem;letter-spacing:.17em;text-transform:uppercase;color:var(--teal);margin-top:.2rem}
.nav{display:flex;align-items:center;gap:1.6rem}
.nav > a, .nav .drop-toggle{color:var(--ink-soft);font-size:.95rem;font-weight:600;white-space:nowrap;cursor:pointer}
.nav > a:hover,.nav .drop-toggle:hover{color:var(--teal);text-decoration:none}
.nav .btn{padding:.62rem 1.15rem;font-size:.92rem}
.nav-item{position:relative}
.drop-toggle .car{font-size:.7em;opacity:.6}
.drop{display:none;position:absolute;top:calc(100% + 6px);left:50%;transform:translateX(-50%);background:var(--panel);
  border:1px solid var(--hair);border-radius:var(--r);box-shadow:var(--shadow-lg);padding:.55rem;min-width:250px;z-index:120}
.has-drop:hover .drop,.has-drop:focus-within .drop,.has-drop.js-open .drop{display:block}
.drop a{display:block;padding:.6rem .85rem;border-radius:9px;color:var(--ink-soft);font-weight:600;font-size:.92rem;white-space:nowrap}
.drop a:hover{background:var(--teal-wash);color:var(--teal);text-decoration:none}
.nav-toggle{display:none;background:none;border:0;color:var(--ink);font-size:1.5rem;cursor:pointer;line-height:1}
@media(max-width:960px){
  .nav{position:absolute;top:76px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--panel);border-bottom:1px solid var(--hair);padding:.4rem 24px 1.2rem;display:none;max-height:calc(100vh - 76px);overflow:auto;box-shadow:var(--shadow-md)}
  .nav.open{display:flex}
  .nav > a,.nav .drop-toggle{padding:.85rem 0;border-bottom:1px solid var(--hair-soft);display:block}
  .nav-item{width:100%}
  .drop{position:static;transform:none;border:0;box-shadow:none;padding:.2rem 0 .5rem 1rem;min-width:0;background:transparent}
  .nav .btn{margin:.9rem 0 0;width:100%}
  .nav-toggle{display:block}
}

/* ---------- HERO ---------- */
.hero{padding:64px 0 76px;position:relative;overflow:hidden;
  background:
   radial-gradient(70% 90% at 82% 0%,var(--teal-wash),transparent 62%),
   radial-gradient(90% 70% at 0% 100%,rgba(14,116,144,.07),transparent 60%),
   linear-gradient(168deg,#EAF3F8,var(--bg))}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--hair-soft) 1px,transparent 1px),linear-gradient(90deg,var(--hair-soft) 1px,transparent 1px);
  background-size:44px 44px;-webkit-mask-image:radial-gradient(80% 70% at 70% 20%,#000,transparent 75%);mask-image:radial-gradient(80% 70% at 70% 20%,#000,transparent 75%);opacity:.5}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:3.2rem;align-items:center}
.hero h1{max-width:15ch;margin-bottom:.3em}
.hero h1 .hl{color:var(--teal-deep);position:relative;white-space:nowrap}
.hero .sub{font-size:1.14rem;margin:0 0 1.6rem;max-width:50ch;color:var(--ink-soft)}
.hero-cta{display:flex;gap:.9rem;flex-wrap:wrap;align-items:center;margin-top:.4rem}
.hero-art{min-width:0}
.disclosure{display:inline-flex;align-items:flex-start;gap:.6rem;background:var(--panel);border:1px solid var(--hair);
  border-left:4px solid var(--teal);border-radius:var(--r-sm);padding:.72rem 1rem;font-size:.95rem;color:var(--ink-soft);
  font-weight:600;max-width:48ch;margin:0 0 1.3rem;box-shadow:var(--shadow-sm)}
.disclosure .ic{color:var(--teal);flex:0 0 auto;line-height:1.3;font-size:1.05rem}
.trust-chips{display:flex;flex-wrap:wrap;gap:.5rem .55rem;margin:1.5rem 0 0;padding:0;list-style:none}
.trust-chips li{font-size:.86rem;font-weight:600;color:var(--ink-soft);display:inline-flex;gap:.4rem;align-items:center;
  background:var(--panel);border:1px solid var(--hair);border-radius:999px;padding:.4rem .85rem;box-shadow:var(--shadow-sm)}
.trust-chips li svg{flex:0 0 auto}
@media(max-width:960px){.hero-grid{grid-template-columns:1fr;gap:2.4rem}.hero h1{max-width:20ch}}

/* hero quote card */
.hero-form{background:var(--panel);border:1px solid var(--hair);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);
  padding:1.7rem;position:relative}
.hero-form .hf-top{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem}
.hero-form h2{font-size:1.4rem;margin:0;line-height:1.15}
.hf-avail{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--mono);font-size:.62rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--good);font-weight:700;background:#EAF6EE;border:1px solid #C3E4CE;border-radius:999px;padding:.3rem .6rem;white-space:nowrap}
.hf-avail .dot{width:7px;height:7px;border-radius:50%;background:var(--good);box-shadow:0 0 0 3px rgba(21,128,61,.18)}
.hero-form .hf-sub{font-size:.88rem;color:var(--muted);margin:-.4rem 0 1rem}

/* ---------- trust bar ---------- */
.trustbar{background:var(--navy);color:#fff;border-top:3px solid var(--teal-bright)}
.trustbar .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;padding-top:30px;padding-bottom:30px}
.trustbar .tb{display:flex;gap:.8rem;align-items:flex-start}
.trustbar .tb .ic{flex:0 0 auto;width:38px;height:38px;border-radius:10px;background:rgba(64,192,216,.14);display:grid;place-items:center;color:var(--footer-accent)}
.trustbar .tb b{display:block;color:#fff;font-size:.98rem;font-family:var(--display);letter-spacing:-.01em}
.trustbar .tb span{font-size:.83rem;color:var(--footer-muted);line-height:1.45}
.trustbar .tb span em{color:#cfe0ee;font-style:normal;font-weight:600}
@media(max-width:900px){.trustbar .wrap{grid-template-columns:1fr 1fr;gap:1.3rem}}
@media(max-width:520px){.trustbar .wrap{grid-template-columns:1fr}}

/* certification explainer */
.cert{display:grid;grid-template-columns:auto 1fr;gap:1.4rem;align-items:center;background:var(--panel);
  border:1px solid var(--hair);border-radius:var(--r-lg);padding:1.6rem 1.8rem;box-shadow:var(--shadow-sm);margin-top:2rem}
.cert-badges{display:flex;gap:.8rem;flex-wrap:wrap}
.cert-badge{width:96px;height:96px;border-radius:14px;border:1px solid var(--hair);background:linear-gradient(180deg,#fff,var(--teal-wash));
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.15rem;box-shadow:var(--shadow-sm);text-align:center}
.cert-badge .abbr{font-family:var(--display);font-weight:700;font-size:1.5rem;color:var(--teal-deep);line-height:1}
.cert-badge .exp{font-family:var(--mono);font-size:.5rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);padding:0 .3rem}
.cert p{margin:0}
.cert .k{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--teal);font-weight:700;margin-bottom:.35rem;display:block}
@media(max-width:700px){.cert{grid-template-columns:1fr;text-align:left}}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem;margin-top:2.6rem}
.cards.two{grid-template-columns:repeat(2,1fr)}
.cards.four{grid-template-columns:repeat(4,1fr)}
.card{background:var(--panel);border:1px solid var(--hair);border-radius:var(--r-lg);padding:1.7rem;display:flex;flex-direction:column;color:inherit;text-decoration:none;transition:border-color .2s,transform .2s,box-shadow .2s;box-shadow:var(--shadow-sm)}
a.card:hover{border-color:var(--teal);transform:translateY(-4px);box-shadow:var(--shadow-md);text-decoration:none}
.card .ic{width:46px;height:46px;border-radius:12px;background:var(--teal-wash);display:grid;place-items:center;color:var(--teal);margin-bottom:1rem}
.card h3{font-size:1.12rem;margin-bottom:.4rem;color:var(--ink)}
.card p{font-size:.94rem;margin:0;color:var(--muted)}
.card .more{margin-top:auto;font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--teal);padding-top:1.1rem;font-weight:700;display:inline-flex;gap:.4rem;align-items:center}
a.card:hover .more .arw{transform:translateX(3px)}
.card .more .arw{transition:transform .16s}
.card .src{margin-top:.8rem;font-size:.76rem;color:var(--faint)}
.card .big{font-family:var(--display);font-size:2.4rem;font-weight:700;color:var(--teal-deep);line-height:1;margin-bottom:.5rem;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
@media(max-width:900px){.cards,.cards.four{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.cards,.cards.four,.cards.two{grid-template-columns:1fr}}

/* stat cards on dark */
.section.dark .card{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.12);box-shadow:none}
.section.dark .card h3{color:#fff}
.section.dark .card .big{color:var(--footer-accent)}
.section.dark .card p{color:var(--footer-muted)}
.section.dark .card .src{color:var(--faint)}

/* ---------- process timeline ---------- */
.timeline{margin-top:2.6rem;display:grid;gap:0;position:relative}
.tl-step{display:grid;grid-template-columns:auto 1fr;gap:1.4rem;padding:0 0 2rem;position:relative}
.tl-step:last-child{padding-bottom:0}
.tl-num{position:relative;z-index:2;width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--cta-2),var(--cta));
  color:#fff;font-family:var(--display);font-weight:700;font-size:1.3rem;display:grid;place-items:center;box-shadow:0 8px 18px var(--cta-glow);flex:0 0 auto}
.tl-step::before{content:"";position:absolute;left:26px;top:52px;bottom:-4px;width:2px;background:linear-gradient(var(--teal),transparent);z-index:1}
.tl-step:last-child::before{display:none}
.tl-body{padding-top:.35rem}
.tl-body h3{font-size:1.16rem;margin-bottom:.25rem}
.tl-body p{margin:0;font-size:.96rem}
.section.dark .tl-body h3{color:#fff}
.section.dark .tl-body p{color:var(--footer-muted)}

/* steps (3-up numbered) */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:2.6rem;counter-reset:s}
.step{background:var(--panel);border:1px solid var(--hair);border-radius:var(--r-lg);padding:1.8rem 1.6rem 1.6rem;position:relative;box-shadow:var(--shadow-sm)}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:-18px;left:1.5rem;width:38px;height:38px;border-radius:50%;
  background:linear-gradient(135deg,var(--cta-2),var(--cta));color:#fff;font-weight:800;display:grid;place-items:center;font-size:1rem;box-shadow:0 8px 16px var(--cta-glow);font-family:var(--display)}
.step h3{font-size:1.08rem;margin:.7rem 0 .4rem}
.step p{font-size:.94rem;margin:0}
.section.dark .step{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.12)}
@media(max-width:820px){.steps{grid-template-columns:1fr;gap:2rem}}

/* ---------- area grid ---------- */
.areas{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:1rem;margin-top:2.4rem}
.area{background:var(--panel);border:1px solid var(--hair);border-radius:var(--r);padding:1.15rem 1.35rem;color:inherit;text-decoration:none;transition:.2s;display:flex;flex-direction:column;gap:.15rem;box-shadow:var(--shadow-sm);position:relative}
.area:hover{border-color:var(--teal);transform:translateY(-3px);text-decoration:none;box-shadow:var(--shadow-md)}
.area b{color:var(--ink);font-size:1.04rem;display:flex;align-items:center;justify-content:space-between;gap:.5rem}
.area b .arw{color:var(--teal);font-size:.9rem;opacity:0;transition:.2s}
.area:hover b .arw{opacity:1;transform:translateX(2px)}
.area span{font-size:.85rem;color:var(--muted)}
.area .zone{font-family:var(--mono);font-size:.6rem;letter-spacing:.06em;text-transform:uppercase;color:var(--danger);font-weight:700;margin-top:.4rem}

/* ---------- pCi/L gauge (inline svg support) ---------- */
.gauge-card{background:var(--panel);border:1px solid var(--hair);border-radius:var(--r-lg);padding:1.5rem 1.6rem;box-shadow:var(--shadow-sm)}
.gauge-card .g-top{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap;margin-bottom:.3rem}
.gauge-card .g-k{font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);font-weight:700}
.gauge-card figcaption{font-size:.8rem;color:var(--faint);margin-top:.7rem}

/* fact strip */
.factbar{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:0;margin:0 0 2rem;padding:0;list-style:none;
  background:var(--panel);border:1px solid var(--hair);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm)}
.factbar li{padding:1.05rem 1.25rem;border-right:1px solid var(--hair-soft)}
.factbar li:last-child{border-right:0}
.factbar .n{font-family:var(--display);font-weight:700;font-size:1.5rem;color:var(--teal-deep);display:block;line-height:1.05;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.factbar .n.hot{color:var(--danger)}
.factbar .l{font-size:.78rem;color:var(--muted);margin-top:.25rem;display:block}
@media(max-width:640px){.factbar{grid-template-columns:1fr 1fr}.factbar li{border-bottom:1px solid var(--hair-soft)}}
.pill{display:inline-flex;align-items:center;gap:.45rem;font-family:var(--mono);font-size:.68rem;letter-spacing:.09em;text-transform:uppercase;
  padding:.42rem .85rem;border-radius:999px;background:var(--band);color:var(--ink-soft);border:1px solid var(--hair);font-weight:700}
.pill.hot{background:var(--pill-hot-bg);color:var(--pill-hot-ink);border-color:transparent}
.pill .dot{width:7px;height:7px;border-radius:50%;background:currentColor}

/* cost range bar */
.rangebar{margin:1.6em 0;background:var(--panel);border:1px solid var(--hair);border-radius:var(--r);padding:1.3rem 1.5rem;box-shadow:var(--shadow-sm)}
.rangebar .rb-top{display:flex;justify-content:space-between;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted);text-transform:uppercase;margin-bottom:.6rem}
.rangebar .track{height:14px;border-radius:999px;background:linear-gradient(90deg,#DBEAF0,#B7D8E2);position:relative;overflow:hidden}
.rangebar .fill{position:absolute;top:0;bottom:0;left:8%;right:12%;background:linear-gradient(90deg,var(--teal),var(--teal-bright));border-radius:999px}
.rangebar .rb-labels{display:flex;justify-content:space-between;margin-top:.6rem;font-size:.9rem;color:var(--ink-soft);font-weight:700}
.rangebar .rb-note{font-size:.82rem;color:var(--faint);margin:.7rem 0 0}

/* ---------- quote form ---------- */
.qwrap{display:grid;grid-template-columns:1fr 1.06fr;gap:3.2rem;align-items:start}
@media(max-width:900px){.qwrap{grid-template-columns:1fr;gap:2.2rem}}
.assure{list-style:none;padding:0;margin:1.4rem 0 0;display:grid;gap:.75rem}
.assure li{display:flex;gap:.65rem;font-size:.98rem;color:var(--ink-soft);align-items:flex-start}
.assure li svg{flex:0 0 auto;margin-top:.2rem}
.qform-wrap{background:var(--panel);border:1px solid var(--hair);border-radius:var(--r-lg);padding:1.9rem;box-shadow:var(--shadow-lg)}
.qform label{display:block;font-size:.84rem;font-weight:700;color:var(--ink);margin:0 0 .95rem}
.qform input[type=text],.qform input[type=tel],.qform input[type=email],.qform textarea,.qform select{
  display:block;width:100%;margin-top:.4rem;padding:.78rem .85rem;border:1px solid var(--hair);border-radius:var(--r-sm);
  font:inherit;font-size:.96rem;color:var(--ink);background:var(--bg);transition:border-color .15s,box-shadow .15s}
.qform input:focus,.qform textarea:focus,.qform select:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,116,144,.15);background:var(--panel)}
.qform .two{display:grid;grid-template-columns:1fr 1fr;gap:.95rem}
@media(max-width:520px){.qform .two{grid-template-columns:1fr}}
.qform .check{display:flex;align-items:flex-start;gap:.6rem;font-weight:600;font-size:.92rem;color:var(--ink-soft);cursor:pointer}
.qform .check input{margin-top:.2rem;accent-color:var(--cta);width:18px;height:18px;flex:0 0 auto}
.qform .closing-check{background:var(--pill-hot-bg);border:1px solid #F3CFC9;border-radius:var(--r-sm);padding:.75rem .85rem;margin-bottom:.4rem}
.qform .closing-check .check{color:var(--pill-hot-ink)}
.qform .consent{background:var(--teal-wash);border:1px solid var(--hair);border-radius:var(--r-sm);padding:.8rem .85rem;margin:.2rem 0 .3rem}
.qform .consent .check{font-weight:500;font-size:.8rem;color:var(--muted);line-height:1.5}
.qform .consent a{text-decoration:underline}
.qform .btn{width:100%;margin-top:.5rem;font-size:1.05rem}
.qform .fineprint{font-size:.79rem;color:var(--faint);margin:.85rem 0 0;text-align:center;line-height:1.5}
.qform .hp{position:absolute;left:-9999px;top:-9999px;height:1px;width:1px;opacity:0}
.qform-msg{display:none;background:var(--danger-wash);color:var(--danger);border-radius:var(--r-sm);padding:.75rem .9rem;font-size:.9rem;font-weight:600;margin-bottom:1rem;border:1px solid #F3CFC9}
.qform-msg.show{display:block}
.form-success{text-align:center;padding:1.8rem .5rem}
.form-success .tick{width:60px;height:60px;border-radius:50%;background:var(--good);color:#fff;font-size:1.8rem;display:grid;place-items:center;margin:0 auto 1.1rem}
.form-success h3{margin-bottom:.4rem}
.form-success p{margin:0 auto;max-width:40ch;color:var(--muted)}
/* compact hero form spacing */
.hero-form .qform label{margin-bottom:.75rem}
.hero-form .qform .consent .check{font-size:.76rem}

/* ---------- faq ---------- */
.faq{max-width:820px;margin:2.4rem auto 0}
.faq details{border:1px solid var(--hair);border-radius:var(--r);margin-bottom:.85rem;background:var(--panel);overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color .2s}
.faq details[open]{border-color:var(--teal)}
.faq summary{cursor:pointer;padding:1.15rem 1.35rem;font-weight:700;font-size:1.04rem;color:var(--ink);
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;font-family:var(--display)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";width:12px;height:12px;flex:0 0 auto;border-right:2.5px solid var(--teal);border-bottom:2.5px solid var(--teal);transform:rotate(45deg);transition:transform .2s;margin-top:-4px}
.faq details[open] summary::after{transform:rotate(-135deg);margin-top:2px}
.faq details .a{padding:0 1.35rem 1.25rem;color:var(--muted);font-size:.97rem}
.faq details .a a{text-decoration:underline}

/* ---------- prose (guides) ---------- */
.prose{max-width:min(780px,100%);margin:0 auto}
.prose h2{margin-top:2.4rem;font-size:1.8rem}
.prose h3{margin-top:1.7rem}
.prose ul,.prose ol{padding-left:1.35rem;margin:0 0 1.2em;color:var(--muted)}
.prose li{margin:.4em 0}
.prose li b{color:var(--ink-soft)}
.prose table{width:100%;border-collapse:collapse;margin:0;font-size:.95rem}
.prose .tablewrap{overflow-x:auto;margin:1.5em 0;border:1px solid var(--hair);border-radius:var(--r);box-shadow:var(--shadow-sm)}
.prose .tablewrap table{min-width:520px}
.prose th,.prose td{border-bottom:1px solid var(--hair-soft);border-right:1px solid var(--hair-soft);padding:.75rem .95rem;text-align:left;color:var(--muted)}
.prose tr td:last-child,.prose tr th:last-child{border-right:0}
.prose tbody tr:last-child td{border-bottom:0}
.prose th{background:var(--band);color:var(--ink);font-weight:700;font-family:var(--display)}
.prose .cite{font-size:.82rem;color:var(--faint);margin-top:-.4em}
.callout{background:var(--teal-wash);border:1px solid var(--hair);border-left:4px solid var(--teal);border-radius:0 var(--r) var(--r) 0;padding:1.1rem 1.4rem;margin:1.7em 0}
.callout p{margin:0;font-size:.96rem;color:var(--ink-soft)}
.callout.warn{background:var(--danger-wash);border-left-color:var(--danger)}
.callout.warn p{color:#7a2119}
.callout b,.callout a{color:var(--ink)}
.callout a{text-decoration:underline}
.prose figure.artcard{margin:1.8em 0}

/* breadcrumbs / page intro / related */
.crumbs{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);padding:1.5rem 0 0}
.crumbs a{color:var(--faint)}
.crumbs a:hover{color:var(--teal)}
.page-intro{padding:44px 0 52px;border-bottom:1px solid var(--hair);position:relative;overflow:hidden;
  background:radial-gradient(80% 90% at 88% 0%,var(--teal-wash),transparent 60%),linear-gradient(168deg,#EAF3F8,var(--bg))}
.page-intro h1{max-width:24ch}
.page-intro .lead{margin-top:.9rem}
.page-intro .disclosure{margin-top:1.2rem;margin-bottom:0}
.related{border-top:1px solid var(--hair);margin-top:3.2rem;padding-top:2rem}
.related h3{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--faint)}
.related ul{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:.85rem;margin:.9rem 0 0}
.related a{font-weight:700;display:flex;gap:.5rem;align-items:center;background:var(--panel);border:1px solid var(--hair);border-radius:var(--r-sm);padding:.8rem 1rem;box-shadow:var(--shadow-sm);transition:.2s}
.related a:hover{border-color:var(--teal);text-decoration:none;transform:translateY(-2px)}

/* cta band */
.ctaband{text-align:center}
.ctaband h2{max-width:24ch;margin-inline:auto}
.ctaband p{margin-inline:auto}
.ctaband .btn{margin-top:1.4rem}

/* svg diagram card */
.artcard{background:var(--panel);border:1px solid var(--hair);border-radius:var(--r-lg);padding:1.5rem 1.6rem;box-shadow:var(--shadow-md)}
.artcard figcaption{font-size:.83rem;color:var(--muted);text-align:center;padding-top:1rem;font-style:italic}
.artcard svg{display:block;width:100%;height:auto}
/* diagram motion (frozen by shot.py; static state is complete) */
@keyframes radonRise{0%{opacity:0;transform:translateY(6px)}30%{opacity:1}100%{opacity:0;transform:translateY(-26px)}}
@keyframes fanSpin{to{transform:rotate(360deg)}}
.rn-particle{animation:radonRise 3.4s ease-in infinite}
.rn-fan{transform-origin:372px 252px;animation:fanSpin 1.8s linear infinite}
@media(prefers-reduced-motion:reduce){.rn-particle,.rn-fan{animation:none}}

/* ---------- sticky mobile quote bar ---------- */
.stickybar{position:fixed;left:0;right:0;bottom:0;z-index:90;background:rgba(11,30,51,.97);backdrop-filter:blur(8px);
  border-top:2px solid var(--teal-bright);padding:.7rem 1rem;display:none;align-items:center;justify-content:space-between;gap:1rem;box-shadow:0 -8px 26px rgba(0,0,0,.22)}
.stickybar .sb-txt{color:#fff;font-size:.86rem;font-weight:600;line-height:1.25}
.stickybar .sb-txt small{display:block;color:var(--footer-muted);font-weight:400;font-size:.74rem}
.stickybar .btn{padding:.7rem 1.15rem;font-size:.92rem;white-space:nowrap}
@media(max-width:900px){.stickybar{display:flex}body{padding-bottom:72px}}

/* ---------- footer ---------- */
.site-footer{background:var(--footer-bg);color:var(--footer-muted);padding:66px 0 34px;margin-top:0}
.site-footer a{color:var(--footer-muted)}
.site-footer a:hover{color:#fff;text-decoration:none}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:2.4rem}
.foot-brand .brand{color:#fff;margin-bottom:1rem}
.foot-brand .brand-text small{color:var(--footer-accent)}
.foot-brand p{max-width:42ch;font-size:.9rem;color:var(--footer-muted)}
.foot-disclosure{font-weight:700;color:#fff !important;font-size:.98rem !important;border-left:3px solid var(--footer-accent);padding-left:.85rem}
.foot-col h4{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#fff;margin:0 0 1.1rem}
.foot-col ul{list-style:none;padding:0;margin:0;display:grid;gap:.55rem}
.foot-col a{font-size:.9rem}
.foot-bottom{border-top:1px solid var(--footer-hair);margin-top:2.4rem;padding-top:1.4rem;font-family:var(--mono);
  font-size:.68rem;letter-spacing:.03em;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.8rem;color:var(--faint)}
.foot-bottom a{color:var(--footer-muted);text-decoration:underline}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}