/* ===== Design tokens ===== */
:root {
  --green-900: #0c3327;
  --green-700: #124d34;
  --green-600: #2f7d3f;
  --green-500: #4c8f3f;
  --lime-300: #a7e88a;
  --lime-200: #cdeeb8;

  --ink: #0e1a13;
  --body: #3f4a43;
  --muted: #6b766e;
  --line: #e4e9e5;
  --bg: #ffffff;
  --bg-soft: #f4f7f4;
  --bg-hero: #0f5c34;

  --radius: 18px;
  --radius-lg: 30px;
  --shadow-sm: 0 2px 8px rgba(11, 61, 36, 0.06);
  --shadow: 0 18px 50px rgba(11, 61, 36, 0.12);
  --container: 1160px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

/* ===== Reset & base ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--body);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--ink); line-height: 1.1; letter-spacing: -0.02em; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-display); font-weight: 600; font-size: 16px;
  padding: 14px 26px; border-radius: 999px; border: 1.5px solid transparent;
  cursor: pointer; transition: transform .15s ease, background .2s ease, box-shadow .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--green-600); color: #fff; box-shadow: 0 10px 24px rgba(19, 138, 79, 0.28); }
.btn-primary:hover { background: var(--green-700); }
.btn-light { background: #fff; color: var(--green-700); }
.btn-light:hover { background: var(--lime-200); }
.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-ghost-light:hover { background: rgba(255,255,255,0.12); }
.btn-block { width: 100%; justify-content: center; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.86); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 74px; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-mark { display: inline-flex; flex: none; }
.brand-lockup { display: inline-flex; flex-direction: column; line-height: 1; }
.brand-text { font-family: var(--font-display); font-weight: 700; font-size: 22px; color: var(--ink); letter-spacing: -0.02em; }
.brand-tag { font-family: var(--font-display); font-weight: 500; font-size: 10.5px; letter-spacing: 0.06em; color: var(--green-600); margin-top: 3px; text-transform: uppercase; }
.nav { margin-left: auto; display: flex; gap: 30px; }
.nav a { font-weight: 500; color: var(--body); font-size: 16px; transition: color .2s; }
.nav a:hover { color: var(--green-600); }
.header-cta { padding: 11px 22px; font-size: 15px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; margin-left: auto; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--ink); border-radius: 2px; transition: .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { padding: 22px 0 0; }
.hero-card {
  position: relative; overflow: hidden;
  background: linear-gradient(155deg, var(--green-700) 0%, var(--green-900) 100%);
  border-radius: var(--radius-lg);
  padding: 84px 60px 70px;
  color: #fff;
}
.hero-card::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 46px 46px; pointer-events: none;
}
.hero-card::after {
  content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(167,232,138,0.25), transparent 65%); pointer-events: none;
}
.hero-card > * { position: relative; z-index: 1; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  font-size: 14px; color: var(--lime-200); margin-bottom: 26px;
}
.eyebrow .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--lime-300); box-shadow: 0 0 0 4px rgba(167,232,138,0.25); }
.hero-card h1 { font-size: clamp(2.4rem, 5.5vw, 4.1rem); color: #fff; max-width: 15ch; margin-bottom: 26px; }
.hero-card h1 .hl { color: var(--lime-300); }
.hero-sub { font-size: clamp(1.05rem, 1.6vw, 1.28rem); color: rgba(255,255,255,0.85); max-width: 60ch; margin-bottom: 38px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 54px; }
.hero-stats { list-style: none; display: flex; flex-wrap: wrap; gap: 46px; border-top: 1px solid rgba(255,255,255,0.16); padding-top: 30px; }
.hero-stats strong { display: block; font-family: var(--font-display); font-size: 2.4rem; color: #fff; line-height: 1; }
.hero-stats span { font-size: 14px; color: rgba(255,255,255,0.72); }

/* ===== Strip ===== */
.strip { padding: 30px 0; }
.strip-inner { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 18px; color: var(--muted); font-family: var(--font-display); font-weight: 600; letter-spacing: 0.02em; }
.strip .sep { color: var(--lime-300); }

/* ===== Sections ===== */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-soft); }
.section-eyebrow { font-family: var(--font-display); font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; font-size: 13px; color: var(--green-600); margin-bottom: 16px; }
.section-eyebrow.light { color: var(--lime-200); }
.section-head { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.section-head h2, .about-copy h2, .why-head h2, .cta-copy h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); margin-bottom: 18px; }
.section-lead { color: var(--muted); font-size: 1.1rem; }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; }
.about-copy p { margin-bottom: 18px; color: var(--body); }
.about-copy .btn { margin-top: 12px; }
.about-panels { display: grid; gap: 16px; }
.panel { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 28px; transition: transform .2s, box-shadow .2s; }
.panel:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.panel h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--green-700); }
.panel p { color: var(--muted); font-size: 0.98rem; }

/* ===== Cards ===== */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; transition: transform .2s, box-shadow .2s, border-color .2s;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card-icon {
  width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center;
  background: var(--lime-200); color: var(--green-700); margin-bottom: 22px;
}
.card h3 { font-size: 1.28rem; margin-bottom: 12px; }
.card > p { color: var(--muted); font-size: 0.97rem; margin-bottom: 20px; }
.card-list { list-style: none; margin-top: auto; display: grid; gap: 9px; }
.card-list li { position: relative; padding-left: 22px; font-size: 0.93rem; color: var(--body); }
.card-list li::before { content: ""; position: absolute; left: 0; top: 8px; width: 8px; height: 8px; border-radius: 50%; background: var(--green-500); }

/* ===== Why ===== */
.why-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 60px; }
.why-head { position: sticky; top: 100px; align-self: start; }
.why-head p { color: var(--muted); }
.why-list { display: grid; gap: 8px; }
.why-item { display: flex; gap: 22px; padding: 24px 0; border-top: 1px solid var(--line); }
.why-item:first-child { border-top: 0; }
.why-num { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--green-500); min-width: 34px; }
.why-item h3 { font-size: 1.25rem; margin-bottom: 6px; }
.why-item p { color: var(--muted); }

/* ===== CTA / Contact ===== */
.cta-card {
  background: linear-gradient(150deg, var(--green-700), var(--green-900));
  border-radius: var(--radius-lg); padding: 60px; color: #fff;
  display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: start;
  position: relative; overflow: hidden;
}
.cta-card::after { content: ""; position: absolute; left: -100px; bottom: -140px; width: 400px; height: 400px; background: radial-gradient(circle, rgba(167,232,138,0.18), transparent 65%); }
.cta-copy { position: relative; z-index: 1; }
.cta-copy h2 { color: #fff; }
.cta-copy > p { color: rgba(255,255,255,0.82); margin-bottom: 30px; }
.contact-details { list-style: none; display: grid; gap: 14px; }
.contact-details li { display: flex; flex-direction: column; gap: 2px; }
.contact-details span { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--lime-200); font-weight: 600; }
.contact-details a { font-weight: 500; }
.contact-details a:hover { text-decoration: underline; }

.cta-form { position: relative; z-index: 1; background: #fff; border-radius: var(--radius); padding: 30px; display: grid; gap: 16px; box-shadow: var(--shadow); }
.field { display: grid; gap: 6px; }
.field label { font-size: 13px; font-weight: 600; color: var(--ink); font-family: var(--font-display); }
.field input, .field select, .field textarea {
  font-family: var(--font-body); font-size: 15px; color: var(--ink);
  border: 1.5px solid var(--line); border-radius: 12px; padding: 12px 14px; background: #fff; width: 100%;
  transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--green-500); box-shadow: 0 0 0 4px rgba(22,163,92,0.12);
}
.form-note { font-size: 14px; text-align: center; min-height: 20px; }
.form-note.ok { color: var(--green-600); font-weight: 600; }
.form-note.err { color: #c23b3b; font-weight: 600; }

/* ===== Footer ===== */
.site-footer { background: var(--green-900); color: rgba(255,255,255,0.72); padding: 66px 0 30px; }
.footer-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 50px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,0.12); }
.site-footer .brand-text { color: #fff; }
.site-footer .brand-tag { color: var(--lime-300); }
.brand-mark-footer { background: #fff; border-radius: 10px; padding: 4px; box-sizing: content-box; }
.footer-brand p { margin-top: 16px; max-width: 40ch; font-size: 0.96rem; }
.footer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.footer-nav h4 { color: #fff; font-size: 0.95rem; margin-bottom: 14px; letter-spacing: 0.02em; }
.footer-nav a { display: block; padding: 5px 0; font-size: 0.95rem; transition: color .2s; }
.footer-nav a:hover { color: var(--lime-300); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; padding-top: 26px; font-size: 0.88rem; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .nav, .header-cta { display: none; }
  .nav.open {
    display: flex; flex-direction: column; gap: 4px;
    position: absolute; top: 74px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 12px 24px 20px; margin: 0;
  }
  .nav.open a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: flex; }
  .about-grid, .why-grid, .cta-card { grid-template-columns: 1fr; gap: 34px; }
  .why-head { position: static; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .hero-card { padding: 60px 34px 50px; }
  .cta-card { padding: 40px 30px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .cards { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
  .hero-stats strong { font-size: 2rem; }
  .footer-nav { grid-template-columns: 1fr 1fr; }
  .section { padding: 64px 0; }
}