/* Eco Sure Testing LLC — global styles. Mobile-first, fast, accessible. */
:root {
  --green: #1f7a5a;
  --green-dark: #145240;
  --green-light: #e8f4ef;
  --ink: #16261f;
  --slate: #4a5a54;
  --line: #d9e4df;
  --bg: #ffffff;
  --bg-alt: #f5f9f7;
  --cta: #e4572e;
  --cta-dark: #c2431f;
  --radius: 12px;
  --shadow: 0 4px 18px rgba(20, 82, 64, .10);
  --wrap: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green-dark); }
h1, h2, h3 { line-height: 1.2; color: var(--ink); margin: 0 0 .5em; }
h1 { font-size: clamp(1.9rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.section { padding: 60px 0; }
.section.alt { background: var(--bg-alt); }
.center { text-align: center; }
.lead { font-size: 1.2rem; color: var(--slate); max-width: 680px; }
.center .lead { margin-left: auto; margin-right: auto; }

/* Skip link */
.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: #fff; padding: 10px 16px; z-index: 200; }
.skip:focus { left: 8px; top: 8px; }

/* Top bar */
.topbar { background: var(--green-dark); color: #fff; font-size: .92rem; }
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-top: 8px; padding-bottom: 8px; flex-wrap: wrap; }
.topbar a { color: #fff; text-decoration: none; font-weight: 600; }
.topbar .hours { opacity: .9; }

/* Header / nav */
.site-header { position: sticky; top: 0; z-index: 100; background: #fff; border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; max-width: var(--wrap); margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 800; font-size: 1.15rem; }
.brand .logo { width: 38px; height: 38px; flex: 0 0 auto; }
.brand small { display: block; font-size: .68rem; font-weight: 600; color: var(--slate); letter-spacing: .04em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links a { text-decoration: none; color: var(--ink); font-weight: 600; padding: 8px 12px; border-radius: 8px; font-size: .98rem; }
.nav-links a:hover, .nav-links a[aria-current="page"] { background: var(--green-light); color: var(--green-dark); }
.nav-cta { background: var(--cta); color: #fff !important; padding: 10px 16px !important; border-radius: 8px; }
.nav-cta:hover { background: var(--cta-dark) !important; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 1.2rem; cursor: pointer; }

/* Buttons */
.btn { display: inline-block; text-decoration: none; font-weight: 700; padding: 14px 26px; border-radius: 10px; border: 2px solid transparent; cursor: pointer; font-size: 1rem; transition: transform .05s ease, background .15s ease; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--cta); color: #fff; }
.btn-primary:hover { background: var(--cta-dark); }
.btn-secondary { background: #fff; color: var(--green-dark); border-color: var(--green); }
.btn-secondary:hover { background: var(--green-light); }
.btn-lg { padding: 16px 32px; font-size: 1.08rem; }
.btn-group { display: flex; gap: 14px; flex-wrap: wrap; }
.center .btn-group { justify-content: center; }

/* Hero */
.hero { background: linear-gradient(160deg, var(--green-light) 0%, #ffffff 70%); padding: 64px 0 56px; }
.hero .badge { display: inline-block; background: #fff; border: 1px solid var(--green); color: var(--green-dark); font-weight: 700; font-size: .85rem; padding: 6px 14px; border-radius: 999px; margin-bottom: 18px; }
.hero h1 { max-width: 760px; }
.hero .lead { margin-bottom: 26px; }
.trust-row { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 30px; }
.trust-row span { display: flex; align-items: center; gap: 8px; font-weight: 600; color: var(--slate); font-size: .95rem; }
.trust-row svg { color: var(--green); flex: 0 0 auto; }

/* Cards / grids */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.card .ico { width: 46px; height: 46px; border-radius: 10px; background: var(--green-light); color: var(--green-dark); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.card h3 { margin-bottom: .4em; }
.card p { margin-bottom: 0; color: var(--slate); font-size: .98rem; }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 20px; grid-template-columns: repeat(4, 1fr); }
.step { position: relative; padding-top: 12px; }
.step .num { width: 40px; height: 40px; border-radius: 50%; background: var(--green); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.step h3 { font-size: 1.05rem; }
.step p { color: var(--slate); font-size: .95rem; margin-bottom: 0; }

/* Why / list */
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; }
.checklist svg { color: var(--green); flex: 0 0 auto; margin-top: 3px; }

/* CTA band */
.cta-band { background: var(--green-dark); color: #fff; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #d7e8e1; max-width: 620px; margin: 0 auto 26px; }
.cta-band .phone { font-size: 1.6rem; font-weight: 800; color: #fff; text-decoration: none; display: inline-block; margin-top: 6px; }

/* Split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }

/* FAQ */
.faq details { border: 1px solid var(--line); border-radius: 10px; padding: 4px 20px; margin-bottom: 12px; background: #fff; }
.faq summary { font-weight: 700; cursor: pointer; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.5rem; color: var(--green); font-weight: 400; }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { color: var(--slate); padding-bottom: 8px; }

/* Contact form */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; font-size: 1rem; font-family: inherit; color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--green); border-color: var(--green); }
.field textarea { min-height: 120px; resize: vertical; }
.req { color: var(--cta); }
.form-note { font-size: .85rem; color: var(--slate); }

/* Info list on contact */
.info-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 18px; }
.info-list li { display: flex; gap: 14px; align-items: flex-start; }
.info-list svg { color: var(--green); flex: 0 0 auto; margin-top: 3px; }
.info-list a { font-weight: 700; text-decoration: none; }

/* Breadcrumb */
.crumb { font-size: .88rem; color: var(--slate); padding: 14px 0 0; }
.crumb a { color: var(--green-dark); text-decoration: none; }
.crumb a:hover { text-decoration: underline; }

/* Footer */
.site-footer { background: var(--ink); color: #cdd8d3; padding: 50px 0 26px; font-size: .95rem; }
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 34px; }
.site-footer h4 { color: #fff; margin: 0 0 14px; font-size: 1rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 34px; padding-top: 18px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: .85rem; color: #9fb0aa; }
.placeholder { background: #fff4c2; color: #6b5200; padding: 0 4px; border-radius: 3px; font-weight: 700; }

/* Responsive */
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: stretch; padding: 10px; gap: 4px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px; }
  .nav-cta { text-align: center; }
  .grid-3, .grid-2, .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .topbar .hours { display: none; }
  .section { padding: 44px 0; }
}