:root {
  --bg: #ffffff;
  --tint: #f0f9f7;
  --ink: #12302d;
  --muted: #53706c;
  --brand: #0f766e;
  --brand-dark: #0b5c56;
  --brand-light: #14b8a6;
  --border: #d5e6e3;
  --max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}

img { max-width: 100%; display: block; }
a { color: var(--brand-dark); }
a:hover { color: var(--brand); }

:focus-visible { outline: 3px solid #f59e0b; outline-offset: 3px; border-radius: 4px; }

.container { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--ink); color: #fff; padding: .6rem 1rem; border-radius: 6px;
}
.skip-link:focus { top: 1rem; color: #fff; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; }
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.15rem; color: var(--brand-dark); text-decoration: none; }
.site-nav ul { display: flex; align-items: center; gap: 1.75rem; list-style: none; margin: 0; padding: 0; }
.site-nav a:not(.btn) { color: var(--ink); text-decoration: none; font-weight: 500; }
.site-nav a:not(.btn):hover { color: var(--brand); }

.nav-toggle { display: none; background: none; border: 0; padding: .6rem; cursor: pointer; }
.nav-toggle .bars, .nav-toggle .bars::before, .nav-toggle .bars::after {
  display: block; width: 24px; height: 2px; background: var(--ink); position: relative; content: "";
  transition: transform .2s, opacity .2s;
}
.nav-toggle .bars::before { position: absolute; top: -7px; }
.nav-toggle .bars::after { position: absolute; top: 7px; }
.nav-toggle[aria-expanded="true"] .bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .bars::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bars::after { transform: translateY(-7px) rotate(-45deg); }

/* Buttons */
.btn {
  display: inline-block; padding: .8rem 1.5rem; border-radius: 999px;
  background: var(--brand); color: #fff; font: inherit; font-weight: 600; text-decoration: none;
  border: 2px solid var(--brand); cursor: pointer; transition: background .15s, color .15s;
}
.btn:hover { background: var(--brand-dark); border-color: var(--brand-dark); color: #fff; }
.btn-small { padding: .45rem 1.1rem; }
.btn-outline { background: transparent; color: var(--brand-dark); }
.btn-outline:hover { background: var(--brand); color: #fff; border-color: var(--brand); }

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--tint) 0%, #ffffff 100%);
  padding: clamp(3rem, 8vw, 6rem) 0;
}
.hero-inner { display: grid; grid-template-columns: 1.15fr 1fr; gap: 3rem; align-items: center; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .82rem; font-weight: 600; color: var(--brand); margin: 0 0 1rem; }
.hero h1 { font-size: clamp(2.1rem, 4.8vw, 3.5rem); line-height: 1.12; margin: 0 0 1.25rem; letter-spacing: -.01em; }
.accent { color: var(--brand); }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 52ch; margin: 0 0 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero-art svg { width: 100%; height: auto; max-height: 420px; }

/* Sections */
.section { padding: clamp(3.25rem, 8vw, 5.5rem) 0; }
.section-tint { background: var(--tint); }
.section-head { margin-bottom: 2.5rem; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); margin: 0 0 .6rem; line-height: 1.2; }
h3 { margin: 0 0 .4rem; font-size: 1.15rem; }
.section-intro { color: var(--muted); font-size: 1.1rem; max-width: 60ch; margin: 0; }
.section-head .section-intro { margin-bottom: 0; }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 1.75rem;
  transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: 0 12px 28px rgba(15, 118, 110, .12); transform: translateY(-2px); }
.card p { margin: 0; color: var(--muted); }
.icon {
  width: 48px; height: 48px; border-radius: 12px; background: #ccfbf1; color: var(--brand-dark);
  display: grid; place-items: center; margin-bottom: 1rem;
}
.icon svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* Values */
.values { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.5rem; }
.value { background: #fff; border-radius: 16px; padding: 1.5rem; border-top: 4px solid var(--brand-light); }
.value p { margin: 0; color: var(--muted); }

/* Steps */
.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1.5rem; }
.steps li { counter-increment: step; position: relative; padding-top: 3.25rem; }
.steps li::before {
  content: counter(step); position: absolute; top: 0; left: 0;
  width: 2.5rem; height: 2.5rem; border-radius: 50%; background: var(--brand); color: #fff;
  display: grid; place-items: center; font-weight: 700;
}
.steps p { margin: 0; color: var(--muted); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 4rem; align-items: start; }
.contact-line { margin-top: 2rem; }
.contact-line .label { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.contact-line a { font-weight: 600; font-size: 1.15rem; }
.form { display: grid; gap: 1.1rem; background: #fff; padding: 1.75rem; border-radius: 16px; border: 1px solid var(--border); }
.field { display: grid; gap: .35rem; }
label { font-weight: 600; font-size: .95rem; }
input, textarea {
  width: 100%; font: inherit; color: var(--ink);
  padding: .75rem .9rem; border: 1px solid #b9cfcb; border-radius: 10px; background: #fff;
}
input:focus, textarea:focus { border-color: var(--brand); outline: 3px solid rgba(20, 184, 166, .3); outline-offset: 0; }
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: #b91c1c; }
.form-status { margin: 0; min-height: 1.4em; font-size: .95rem; color: var(--muted); }
.form-status.error { color: #b91c1c; }
.form .btn { justify-self: start; }

/* Footer */
.site-footer { background: #0c2b28; color: #a9c4c0; padding-top: 3.5rem; font-size: .95rem; }
.site-footer a { color: #d7ebe8; }
.site-footer a:hover { color: #fff; }
.company-details h2 { font-size: 1.1rem; color: #fff; margin-bottom: 1.25rem; }
.details { margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.25rem 2rem; }
.details dt { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: #7fa39e; }
.details dd { margin: .15rem 0 0; color: #eaf5f3; }
.details dd a { display: inline-block; margin-left: .35rem; }
.status::before { content: ""; display: inline-block; width: .55rem; height: .55rem; background: #4ade80; border-radius: 50%; margin-right: .45rem; }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1.5rem;
  margin-top: 2.5rem; padding: 1.5rem 0; border-top: 1px solid rgba(255, 255, 255, .12);
}
.footer-bottom p { margin: 0; }

/* Mobile */
@media (max-width: 800px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; top: 100%; left: 0; right: 0; background: #fff;
    border-bottom: 1px solid var(--border); display: none; padding: 1rem 1.25rem 1.5rem;
  }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 300px; margin-inline: auto; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}