:root{
  --bg:#0f1b2d;--bg2:#15263d;--card:#ffffff;--ink:#10233b;--muted:#5a6b80;
  --line:#e4e9f0;--brand:#1f6feb;--brand-d:#1551b5;--ok:#1f9d55;--warn:#e8a33d;
  --dang:#e0533d;--soft:#f5f8fc;--radius:16px;--shadow:0 10px 30px rgba(16,35,59,.08);
  --max:1080px;font-synthesis-weight:none;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--soft);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
img{max-width:100%}

/* Header */
header.nav{position:sticky;top:0;z-index:50;background:rgba(15,27,45,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1.12rem}
.logo:hover{text-decoration:none}
.logo .mark{width:30px;height:30px;display:grid;place-items:center;background:linear-gradient(135deg,#1f6feb,#16b8a6);
  border-radius:9px;font-size:1rem}
.nav nav a{color:#cdd9e8;margin-left:22px;font-size:.94rem}
.nav nav a:hover{color:#fff;text-decoration:none}
@media(max-width:640px){.nav nav{display:none}}

/* Hero */
.hero{background:radial-gradient(1200px 500px at 70% -10%,#1d3a63 0,var(--bg) 55%);color:#fff;
  padding:64px 0 80px}
.hero h1{font-size:2.5rem;line-height:1.15;font-weight:800;letter-spacing:-.02em;max-width:18ch}
.hero h1 .hl{background:linear-gradient(90deg,#5aa2ff,#37d6c0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.sub{font-size:1.16rem;color:#bcccdf;margin-top:18px;max-width:54ch}
.badges{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;color:#9fb3cc;font-size:.9rem}
.badges span{display:flex;align-items:center;gap:7px}
@media(max-width:640px){.hero h1{font-size:1.9rem}}

/* Search box */
.searchcard{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:26px;margin-top:34px;max-width:640px}
.searchcard label{font-weight:600;color:var(--ink);font-size:.95rem}
.searchwrap{position:relative;margin-top:10px}
.searchwrap input{width:100%;padding:16px 18px;font-size:1.05rem;border:2px solid var(--line);
  border-radius:12px;outline:none;transition:.15s}
.searchwrap input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,111,235,.12)}
.suggest{position:absolute;left:0;right:0;top:calc(100% + 6px);background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--shadow);overflow:hidden;z-index:20;display:none}
.suggest button{display:block;width:100%;text-align:left;padding:12px 16px;border:0;background:#fff;
  cursor:pointer;font-size:.96rem;color:var(--ink)}
.suggest button:hover{background:var(--soft)}
.note{color:var(--muted);font-size:.84rem;margin-top:12px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;background:var(--brand);
  color:#fff;border:0;padding:15px 26px;font-size:1.02rem;font-weight:700;border-radius:12px;
  cursor:pointer;transition:.15s;text-decoration:none}
.btn:hover{background:var(--brand-d);text-decoration:none;transform:translateY(-1px)}
.btn.block{width:100%}
.btn.lg{padding:17px 30px;font-size:1.08rem}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* Sections */
section.sec{padding:62px 0}
section.sec h2{font-size:1.9rem;font-weight:800;letter-spacing:-.01em;text-align:center}
section.sec h2.left{text-align:left}
.lead{color:var(--muted);text-align:center;max-width:60ch;margin:14px auto 0;font-size:1.05rem}

/* Result */
#result{display:none;margin-top:30px}
.rescard{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.res-head{padding:22px 26px;color:#fff;display:flex;align-items:center;gap:16px}
.res-head .gauge{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.18);font-weight:800;font-size:1.3rem;flex:none}
.res-head h3{font-size:1.25rem}
.res-head .addr{opacity:.85;font-size:.9rem}
.res-body{padding:24px 26px;display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:680px){.res-body{grid-template-columns:1fr}.hero{padding:46px 0 60px}}
.fact{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.fact .k{font-size:.82rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.fact .v{font-size:1.45rem;font-weight:800;margin-top:4px}
.fact .d{font-size:.9rem;color:var(--muted);margin-top:4px}
.lvl-0{background:#7d8a9c}.lvl-1{background:var(--ok)}.lvl-2{background:var(--warn)}.lvl-3{background:var(--dang)}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.8rem;font-weight:700}
.pill.r{background:#fde7e3;color:#b23a25}.pill.g{background:#e4f6ec;color:#127a40}.pill.y{background:#fbf0db;color:#9a6a14}

/* Lead form */
.leadbox{margin-top:22px;background:linear-gradient(135deg,#13294a,#1c3c68);border-radius:var(--radius);
  padding:28px 26px;color:#fff}
.leadbox h3{font-size:1.4rem;font-weight:800}
.leadbox p{color:#c4d4ea;margin-top:8px;max-width:60ch}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}
@media(max-width:560px){.fgrid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:.86rem;color:#bdd0ea;font-weight:600}
.field input,.field select,.field textarea{padding:13px 14px;border-radius:10px;
  border:1px solid #36558a;background:#102744;color:#fff;font-size:1rem;font-family:inherit}
.field input::placeholder,.field textarea::placeholder{color:#7e96b8}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#5aa2ff;box-shadow:0 0 0 3px rgba(90,162,255,.2)}
.consent{display:flex;gap:10px;align-items:flex-start;margin-top:14px;font-size:.84rem;color:#aebfd8}
.consent input{margin-top:4px}
.formnote{font-size:.82rem;color:#9fb3cc;margin-top:12px;text-align:center}
.success{display:none;text-align:center;padding:18px}
.success .ic{font-size:2.6rem}

/* Steps / cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
@media(max-width:760px){.cards{grid-template-columns:1fr}}
.c{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.c .n{width:38px;height:38px;border-radius:10px;background:var(--soft);display:grid;place-items:center;
  font-weight:800;color:var(--brand);font-size:1.1rem;margin-bottom:14px}
.c h3{font-size:1.15rem}
.c p{color:var(--muted);margin-top:8px;font-size:.97rem}

/* article */
.article{background:#fff;padding:50px 0}
.article .wrap{max-width:760px}
.article h1{font-size:2.1rem;line-height:1.2;letter-spacing:-.01em}
.article .meta{color:var(--muted);font-size:.9rem;margin:10px 0 30px}
.article h2{font-size:1.5rem;margin:34px 0 12px}
.article h3{font-size:1.18rem;margin:24px 0 8px}
.article p,.article li{font-size:1.05rem;color:#27384d}
.article ul,.article ol{margin:12px 0 12px 22px}
.article li{margin:6px 0}
.article .cta-inline{background:var(--soft);border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:12px;padding:20px 22px;margin:28px 0}
.adslot{margin:30px auto;max-width:760px;min-height:90px;background:repeating-linear-gradient(45deg,#eef2f7,#eef2f7 12px,#e7edf4 12px,#e7edf4 24px);
  border-radius:10px;display:grid;place-items:center;color:#9aa9bd;font-size:.8rem;border:1px dashed #cdd8e6}

/* Footer */
footer{background:var(--bg);color:#9fb3cc;padding:46px 0 30px;margin-top:20px;font-size:.92rem}
footer .grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
@media(max-width:680px){footer .grid{grid-template-columns:1fr}}
footer h4{color:#fff;font-size:1rem;margin-bottom:12px}
footer a{color:#9fb3cc;display:block;margin:7px 0}
footer .src{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;font-size:.82rem;color:#7e93ad}
.spinner{width:20px;height:20px;border:3px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;
  animation:spin .7s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== Additions (conversion / a11y / FAQ) ===== */
/* Skip link */
.skiplink{position:absolute;left:-9999px;top:0;z-index:100;background:var(--brand);color:#fff;
  padding:10px 18px;border-radius:0 0 10px 0;font-weight:700}
.skiplink:focus{left:0;text-decoration:none;outline:3px solid #fff}

/* Visible focus for keyboard users */
.btn:focus-visible,.nav nav a:focus-visible,.suggest button:focus-visible,
.consent input:focus-visible,footer a:focus-visible,details summary:focus-visible{
  outline:3px solid var(--brand);outline-offset:2px;border-radius:6px}

/* Header CTA, kept visible on mobile */
.nav nav a.cta{background:var(--brand);color:#fff;padding:9px 16px;border-radius:10px;font-weight:700}
.nav nav a.cta:hover{background:var(--brand-d);color:#fff}
@media(max-width:640px){
  .nav nav{display:block}
  .nav nav a{display:none}
  .nav nav a.cta{display:inline-flex;margin-left:0}
}

/* Address status messages (errors / lookup feedback) */
.addrstatus{display:none;margin-top:10px;font-size:.9rem;font-weight:600;color:#b23a25;
  background:#fde7e3;border:1px solid #f3c4ba;border-radius:10px;padding:9px 12px}
.addrstatus.on{display:block}
.addrstatus.busy{color:#1551b5;background:#e8f0fe;border-color:#c4d7f5}

/* Inline form error (replaces alert) */
.formerr{display:none;margin-top:14px;background:#fde7e3;color:#8f2f1d;border:1px solid #f3c4ba;
  border-radius:10px;padding:11px 14px;font-size:.92rem;font-weight:600}
.formerr.on{display:block}

/* Neutral pill (data temporarily unavailable) */
.pill.n{background:#e9eef5;color:#51637c}

/* Section footer CTA */
.secfoot{text-align:center;margin-top:34px}

/* Homepage guide cards as links */
a.c.clink{display:block;color:inherit}
a.c.clink:hover{text-decoration:none;border-color:var(--brand);transform:translateY(-2px);transition:.15s}
a.c.clink .more{display:inline-block;margin-top:14px;color:var(--brand);font-weight:700;font-size:.95rem}

/* FAQ */
.faq{max-width:760px;margin:34px auto 0}
.faq details{background:var(--soft);border:1px solid var(--line);border-radius:12px;
  padding:0;margin:10px 0;overflow:hidden}
.faq summary{cursor:pointer;font-weight:700;padding:16px 20px;list-style:none;position:relative;padding-right:46px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:1.4rem;font-weight:800;color:var(--brand);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 20px 16px;color:#27384d;font-size:.98rem}

/* Breadcrumb (guides) */
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{margin:0 6px;opacity:.6}