@import url('https://fonts.googleapis.com/css?family=Montserrat:400,700&display=swap');

:root {
  --primary: #3ddc97;
  --dark: #18181b;
  --text: #fff;
  --accent: #25a18e;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Montserrat', Arial, sans-serif;
  background: var(--dark);
  color: var(--text);
  min-height: 100vh;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

header {
  background: #18181b;
  border-bottom: 1px solid #222;
  padding: 16px 0;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  height: 38px;
}

nav a {
  color: var(--text);
  text-decoration: none;
  margin-left: 28px;
  font-weight: 500;
  transition: color .2s;
}

nav a:hover {
  color: var(--primary);
}

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  padding: 60px 0 50px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 14px;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 25px;
}

.btn {
  background: var(--dark);
  color: var(--primary);
  padding: 14px 34px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  box-shadow: 0 4px 16px rgba(0,0,0,.08);
  transition: background .2s, color .2s;
  border: 2px solid var(--primary);
}

.btn:hover {
  background: var(--primary);
  color: var(--dark);
}

.features {
  background: #23272f;
  padding: 50px 0;
}

.features h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  text-align: center;
}

.features ul {
  list-style: none;
  padding: 0;
  max-width: 550px;
  margin: 0 auto;
}

.features li {
  background: #18181b;
  margin: 14px 0;
  padding: 16px 24px;
  border-radius: 8px;
  font-size: 1.1rem;
  box-shadow: 0 2px 6px rgba(0,0,0,.13);
  display: flex;
  align-items: center;
  gap: 14px;
}

footer {
  background: #18181b;
  text-align: center;
  font-size: 1rem;
  padding: 28px 0 14px 0;
  color: #888;
  border-top: 1px solid #23272f;
}

footer a {
  color: var(--primary);
  text-decoration: none;
  margin: 0 8px;
  font-size: 1rem;
}