:root {
  --primary: #0b3b3c;
  --primary-2: #136f63;
  --accent: #f4a259;
  --text: #1f2430;
  --muted: #5b6275;
  --bg: #f6f7fb;
  --white: #ffffff;
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Inter", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container { width: min(1100px, 100% - 32px); margin-inline: auto; }

.nav { background: var(--primary); position: sticky; top: 0; z-index: 10; }
.nav__inner { display: flex; justify-content: space-between; align-items: center; padding: 14px 0; }
.logo { color: var(--white); font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--primary);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  border: 0;
  border-radius: 999px;
  padding: 14px 28px;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(244, 162, 89, .45); }
.btn--small { padding: 8px 18px; font-size: .9rem; }

.hero {
  background:
    linear-gradient(135deg, rgba(11, 59, 60, .55), rgba(19, 111, 99, .35)),
    url("images/hero-tech.svg") center / cover no-repeat,
    var(--primary);
  color: var(--white);
  padding: 96px 0 112px;
  text-align: center;
}
.eyebrow { color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: .1em; font-size: .85rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.1; margin: 12px 0 16px; }
.lead { max-width: 600px; margin: 0 auto 32px; opacity: .85; font-size: 1.1rem; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: -56px;
}
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 10px 30px rgba(11, 59, 60, .08);
}
.card h2 { font-size: 1.2rem; margin-bottom: 8px; color: var(--primary); }
.card p { color: var(--muted); }

.contact { padding: 96px 0; }
.contact__inner { max-width: 520px; text-align: center; }
.contact h2 { font-size: 2rem; color: var(--primary); }
.contact > div > p { color: var(--muted); margin-bottom: 24px; }

.form { display: grid; gap: 16px; text-align: left; }
.form label { display: grid; gap: 6px; font-weight: 600; font-size: .9rem; }
.form input, .form textarea {
  font: inherit;
  padding: 12px 14px;
  border: 1px solid #d5d9e4;
  border-radius: 10px;
  background: var(--white);
}
.form input:focus, .form textarea:focus { outline: 2px solid var(--accent); border-color: transparent; }
.form__ok { text-align: center; font-weight: 600; color: var(--primary); }

.footer { background: var(--primary); color: rgba(255, 255, 255, .7); text-align: center; padding: 24px 0; font-size: .9rem; }