:root {
  --bg: #fbfaf6;
  --bg-alt: #f1eee5;
  --surface: #ffffff;
  --text: #1d2925;
  --muted: #55645e;
  --border: #e2ddd0;
  --brand: #1f5c4a;
  --brand-strong: #164536;
  --accent: #9fd8c4;
  --on-brand: #ffffff;
  --radius: 12px;
  --max: 1100px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121816;
    --bg-alt: #18201d;
    --surface: #1c2522;
    --text: #e8ece9;
    --muted: #a2b0aa;
    --border: #2c3833;
    --brand: #5fb89a;
    --brand-strong: #7ccbb0;
    --on-brand: #0e1714;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.01em; }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
a { color: var(--brand); }

.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-size: 1.05rem; }
.brand strong { color: var(--brand); }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { color: var(--text); text-decoration: none; font-weight: 500; }
.site-nav a:hover { color: var(--brand); }
.site-nav a.btn { color: var(--on-brand); }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; margin: 5px 0; background: var(--text); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  background: var(--brand);
  color: var(--on-brand);
  text-decoration: none;
  font-weight: 600;
  border: 2px solid var(--brand);
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--brand-strong); border-color: var(--brand-strong); }
.btn-small { padding: 8px 16px; font-size: 0.95rem; }
.btn-ghost { background: transparent; color: var(--brand); }
.btn-ghost:hover { background: var(--bg-alt); border-color: var(--brand); }
.btn-light { background: #fff; color: #1f5c4a; border-color: #fff; }
.btn-light:hover { background: #e9f5f0; border-color: #e9f5f0; }

/* Hero */
.hero {
  padding: 110px 0 100px;
  background:
    radial-gradient(1200px 400px at 85% -10%, color-mix(in srgb, var(--accent) 35%, transparent), transparent 60%),
    var(--bg);
}
.eyebrow { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.8rem; font-weight: 700; color: var(--brand); }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Sections */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-intro { color: var(--muted); max-width: 640px; margin-bottom: 40px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.card p { color: var(--muted); margin: 0; }

.steps {
  list-style: none;
  padding: 0;
  margin: 40px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  counter-reset: step;
}
.steps li { counter-increment: step; }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--brand);
  border-top: 2px solid var(--brand);
  padding-top: 12px;
  margin-bottom: 10px;
}
.steps p { color: var(--muted); margin: 0; }

.about { display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: start; }
.values { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.values li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand);
  border-radius: 8px;
  padding: 16px 18px;
}

.section-cta { background: #1f5c4a; color: #fff; text-align: center; }
.section-cta p { color: #d5ebe3; max-width: 560px; margin: 0 auto 28px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 28px 0; font-size: 0.9rem; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-inner p { margin: 0; }
.site-footer a { color: var(--muted); }

/* Mobile */
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    padding: 20px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
  }
  .site-nav.open { display: flex; }
  .hero { padding: 72px 0 64px; }
  .section { padding: 64px 0; }
  .about { grid-template-columns: 1fr; gap: 28px; }
}