:root {
  --green: #0f4b3f;
  --green-2: #2f7a65;
  --ink: #0d1b2a;
  --muted: #5d6b73;
  --cream: #f7f3ea;
  --white: #ffffff;
  --line: #d9e0dc;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.5;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 6vw;
  background: rgba(255,255,255,.85);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 2;
}
.brand {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--green);
  text-decoration: none;
}
.eye-mark { font-size: 1.25rem; margin-right: 6px; }
nav { display: flex; gap: 22px; }
nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}
nav a:hover { color: var(--green-2); }

main { padding: 0 6vw 50px; }
.hero {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
  min-height: 680px;
  padding: 60px 0;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 800;
  color: var(--green);
  font-size: .9rem;
}
h1 {
  font-size: clamp(2.6rem, 6vw, 5.8rem);
  line-height: .95;
  margin: 12px 0 24px;
  color: var(--ink);
}
.lead {
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  max-width: 680px;
  color: #193044;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
.button {
  display: inline-block;
  background: var(--green);
  color: var(--white);
  padding: 14px 22px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 800;
}
.button.secondary {
  background: var(--white);
  color: var(--green);
  border: 1px solid var(--line);
}

.hero-card {
  background: linear-gradient(145deg, #ffffff, #e7eee9);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 26px;
  box-shadow: 0 24px 60px rgba(15, 75, 63, .14);
}
.screen {
  background: #111;
  color: white;
  border-radius: 26px;
  padding: 18px;
  max-width: 380px;
  margin: 0 auto;
}
.screen-top { color: #9ee6c8; font-weight: 800; margin-bottom: 12px; }
.screen-image {
  height: 190px;
  background: linear-gradient(135deg, #1c3f78, #30689c);
  display: grid;
  place-items: center;
  border-radius: 16px;
  font-size: 3rem;
  font-weight: 900;
}
.controls {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 14px;
}
.controls span {
  background: #222;
  border-radius: 10px;
  padding: 12px 6px;
  text-align: center;
  font-size: .8rem;
}
.device {
  width: 260px;
  margin: 24px auto 0;
  padding: 28px 18px;
  text-align: center;
  background: #151918;
  color: white;
  border-radius: 22px;
  font-weight: 800;
  box-shadow: 0 20px 35px rgba(0,0,0,.22);
}

.benefits, .steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 20px 0 42px;
}
.benefits article, .steps article, .pricing-card, .security-box, .contact-box {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
}
h2 { color: var(--green); margin-top: 0; font-size: 1.45rem; }
p { margin-bottom: 0; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  background: linear-gradient(135deg, var(--green), #0a3029);
  color: white;
  border-radius: 28px;
  padding: 34px;
  margin: 32px 0;
}
.split h2 { color: white; font-size: 2rem; }
.split p { color: #edf8f4; }
.check-list { margin: 0; padding-left: 24px; }
.check-list li { margin: 10px 0; font-weight: 700; }

.page-hero {
  padding: 70px 0 35px;
  max-width: 900px;
}
.steps article span {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--green);
  color: white;
  font-weight: 900;
  margin-bottom: 12px;
}
.security-box { margin-top: 20px; }
.pricing-card { max-width: 720px; }
.contact-box .button { margin-top: 18px; }

footer {
  padding: 26px 6vw;
  background: var(--green);
  color: white;
  text-align: center;
}
footer p { margin: 0; }

@media (max-width: 900px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: 14px; }
  nav { flex-wrap: wrap; gap: 14px; }
  .hero, .split { grid-template-columns: 1fr; }
  .benefits, .steps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  main { padding: 0 4vw 35px; }
  .hero { min-height: auto; padding: 40px 0; }
  .benefits, .steps { grid-template-columns: 1fr; }
  .split { padding: 24px; }
  .controls { grid-template-columns: repeat(2, 1fr); }
}