:root {
  --bg: #ffffff;
  --bg-alt: #f5f7f9;
  --surface: #ffffff;
  --text: #14202b;
  --muted: #56656f;
  --border: #e4e9ed;
  --accent: #0f766e;
  --accent-strong: #0b5c56;
  --accent-soft: #e6f3f1;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(16, 33, 43, .04), 0 8px 24px rgba(16, 33, 43, .06);
  --maxw: 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(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0; }

p { margin: 0; }

a { color: inherit; text-decoration: none; }

img, svg { display: block; max-width: 100%; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 1rem;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, background .2s ease, box-shadow .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 16px rgba(15, 118, 110, .25);
}
.btn-primary:hover { background: var(--accent-strong); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-sm { padding: 9px 16px; font-size: .95rem; }
.btn-lg { padding: 16px 30px; font-size: 1.08rem; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
}
.brand-name { letter-spacing: -0.02em; font-weight: 500; }
.brand-name strong { font-weight: 800; color: var(--accent); }

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #22a89c);
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, .55);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a { color: var(--muted); font-weight: 500; transition: color .2s ease; }
.nav-menu a:hover { color: var(--text); }
.nav-menu .btn { color: #fff; }
.nav-menu .btn-primary:hover { color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 84px;
  background:
    radial-gradient(1000px 480px at 78% -8%, var(--accent-soft), transparent 60%),
    linear-gradient(180deg, #fff, var(--bg-alt));
  overflow: hidden;
}
.hero-inner { max-width: 780px; }

.eyebrow {
  display: inline-block;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 20px;
}

.lede {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--muted);
  max-width: 640px;
  margin-bottom: 34px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Sections ---------- */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }

.section-head { max-width: 620px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); font-weight: 800; margin-bottom: 12px; }
.section-head p { color: var(--muted); font-size: 1.08rem; }

/* ---------- Service cards ---------- */
.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 10px 30px rgba(16, 33, 43, .1);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 18px;
}
.card-icon svg { width: 26px; height: 26px; }

.card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: .98rem; }

/* ---------- Features / Why us ---------- */
.features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px;
}
.feature {
  padding: 26px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  position: relative;
}
.feature::before {
  content: "";
  position: absolute;
  left: 26px;
  top: 26px;
  width: 34px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.feature h3 { font-size: 1.15rem; margin: 22px 0 8px; }
.feature p { color: var(--muted); font-size: .98rem; }

/* ---------- CTA ---------- */
.cta {
  text-align: center;
  background:
    radial-gradient(700px 320px at 50% 0%, var(--accent-soft), transparent 70%);
}
.cta-inner { max-width: 640px; margin: 0 auto; }
.cta h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 16px; }
.cta p { color: var(--muted); font-size: 1.1rem; margin-bottom: 30px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 30px 0;
  background: var(--bg);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy { color: var(--muted); font-size: .92rem; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .nav-toggle { display: flex; }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 16px 24px 24px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform .2s ease, opacity .2s ease;
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-menu li { width: 100%; }
  .nav-menu a { display: block; padding: 10px 4px; }
  .nav-menu .btn { width: 100%; margin-top: 6px; }

  .hero { padding: 72px 0 60px; }
  .section { padding: 60px 0; }
}

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