:root{
  --bg:#f6f8fb;
  --card:#ffffff;
  --ink:#0f172a;
  --muted:#64748b;
  --brand:#0f766e;
  --brand-dark:#115e59;
  --brand-soft:#ccfbf1;
  --line:#e2e8f0;
  --warning:#f59e0b;
  --shadow:0 18px 45px rgba(15,23,42,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,Arial,Helvetica,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.site-header{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.header-inner{
  max-width:1180px;
  margin:0 auto;
  padding:17px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.logo{
  font-size:1.45rem;
  font-weight:900;
  color:var(--brand-dark);
  letter-spacing:-.03em;
}
nav{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
nav a{color:#1f2937;font-weight:700;font-size:.95rem}
.nav-cta{
  padding:9px 13px;
  border-radius:999px;
  background:var(--brand);
  color:white!important;
}
.hero{
  background:
    radial-gradient(circle at 20% 20%, rgba(20,184,166,.18), transparent 30%),
    linear-gradient(135deg,#ecfdf5 0%,#eff6ff 55%,#ffffff 100%);
  border-bottom:1px solid var(--line);
}
.hero-inner{
  max-width:1180px;
  margin:0 auto;
  padding:72px 22px 54px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:36px;
  align-items:center;
}
.eyebrow{
  color:var(--brand-dark);
  text-transform:uppercase;
  letter-spacing:.13em;
  font-weight:900;
  font-size:.78rem;
}
h1{
  font-size:clamp(2.25rem,4.6vw,4.25rem);
  line-height:1.04;
  letter-spacing:-.055em;
  margin:10px 0 18px;
}
.lead{font-size:1.13rem;color:#475569;max-width:760px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.button,button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:0;
  border-radius:13px;
  padding:13px 18px;
  font-weight:900;
  cursor:pointer;
  background:var(--brand);
  color:white;
  box-shadow:0 8px 20px rgba(15,118,110,.20);
}
.button:hover,button:hover{background:var(--brand-dark);text-decoration:none}
.button.secondary{
  background:white;
  color:var(--brand-dark);
  border:1px solid var(--line);
  box-shadow:none;
}
.hero-card,.card,.content,.toolbox{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:24px;
  box-shadow:var(--shadow);
}
.hero-card{padding:24px}
.hero-card h2{margin-top:0}
.container{max-width:1180px;margin:0 auto;padding:42px 22px}
.section-title{
  display:flex;
  justify-content:space-between;
  align-items:end;
  gap:20px;
  margin:0 0 18px;
}
.section-title h2{margin:0;font-size:2rem;letter-spacing:-.035em}
.section-title p{margin:0;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{
  padding:22px;
  transition:.18s ease;
  color:var(--ink);
}
.card:hover{transform:translateY(-3px);text-decoration:none;box-shadow:0 24px 48px rgba(15,23,42,.10)}
.card h3{margin:0 0 7px;font-size:1.08rem}
.card p{color:var(--muted);margin:0}
.badge{
  display:inline-block;
  padding:4px 9px;
  background:var(--brand-soft);
  color:var(--brand-dark);
  border-radius:999px;
  font-size:.78rem;
  font-weight:900;
  margin-bottom:12px;
}
.calculator-box{
  background:#fff;
  border:1px solid var(--line);
  border-radius:24px;
  padding:25px;
  box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:block;font-weight:800;margin-bottom:6px}
input,select{
  width:100%;
  padding:13px 14px;
  border:1px solid #cbd5e1;
  border-radius:12px;
  font-size:1rem;
  outline:none;
}
input:focus,select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(20,184,166,.13)}
.result-box{
  margin-top:18px;
  background:#f0fdfa;
  border:1px solid #99f6e4;
  border-radius:18px;
  padding:18px;
}
.result-box p{margin:6px 0}
.note{font-size:.92rem;color:var(--muted)}
.content{
  max-width:920px;
  margin:38px auto;
  padding:36px;
}
.content h1{font-size:clamp(2rem,4vw,3.25rem)}
.content h2{margin-top:34px;font-size:1.6rem}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:white}
table{width:100%;border-collapse:collapse}
th,td{padding:14px;border-bottom:1px solid var(--line);text-align:left}
th{background:#f8fafc}
.faq details{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px 18px;
  margin:12px 0;
}
.faq summary{font-weight:900;cursor:pointer}
.callout{
  background:linear-gradient(135deg,#0f766e,#115e59);
  color:#fff;
  border-radius:26px;
  padding:32px;
}
.callout p{color:#d1fae5}
.footer{
  background:#0f172a;
  color:#cbd5e1;
  margin-top:56px;
}
.footer-inner{
  max-width:1180px;
  margin:0 auto;
  padding:34px 22px;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:24px;
}
.footer a{color:#e2e8f0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  text-align:center;
  padding:18px 22px;
  color:#94a3b8;
}
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding-top:50px}
  .grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .section-title{display:block}
}


/* High-conversion navigation upgrade */
.tool-nav {
  display:flex;
  gap:14px;
  align-items:center;
  flex-wrap:wrap;
}
.tool-nav a {
  color:#1f2937;
  font-weight:800;
  font-size:.95rem;
}
.tool-nav .nav-cta {
  background:#0f766e;
  color:#fff !important;
  padding:11px 18px;
  border-radius:999px;
  box-shadow:0 10px 22px rgba(15,118,110,.22);
}
.tool-nav .nav-cta:hover {
  background:#115e59;
  text-decoration:none;
}
.quick-strip {
  background:#ffffff;
  border-bottom:1px solid #e2e8f0;
}
.quick-strip-inner {
  max-width:1180px;
  margin:0 auto;
  padding:12px 22px;
  display:flex;
  gap:12px;
  align-items:center;
  flex-wrap:wrap;
  color:#64748b;
  font-size:.95rem;
}
.quick-strip-inner strong {
  color:#0f172a;
}
.quick-strip-inner a {
  font-weight:800;
}
@media(max-width:900px){
  .tool-nav{gap:10px}
  .tool-nav a{font-size:.9rem}
  .tool-nav .nav-cta{width:100%;text-align:center}
}


/* Strong CTA blocks for traffic pages */
.cta-panel{
  margin:30px 0;
  padding:26px;
  border-radius:24px;
  background:linear-gradient(135deg,#0f766e,#115e59);
  color:#fff;
  box-shadow:0 18px 40px rgba(15,118,110,.22);
}
.cta-panel h2{margin-top:0;color:#fff}
.cta-panel p{color:#d1fae5}
.cta-panel .button{background:#fff;color:#0f766e;box-shadow:none}
.cta-panel .button:hover{background:#ecfdf5}
.keyword-table td,.keyword-table th{font-size:.96rem}