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

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #0f0f0f;
  color: #ffffff;
}

a {
  color: inherit;
}

/* HEADER & NAV */

header {
  background: #111111;
  padding: 10px 0;
}

nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-brand {
  color: #00ff88;
  font-size: 22px;
  font-weight: bold;
  white-space: nowrap;
}

/* Hamburger button */
.menu-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid #444444;
  border-radius: 4px;
  padding: 6px 8px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: #ffffff;
  margin: 3px 0;
}

/* Desktop nav links */
.nav-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-left: auto;
}

.nav-links li a {
  text-decoration: none;
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
}

.nav-links li a:hover {
  background: #00ff88;
  color: #000000;
}

/* HERO */

.hero {
  text-align: center;
  padding: 72px 16px 56px;
  background: radial-gradient(circle at top, #1b1b1b, #050505);
}

.hero h1 {
  font-size: 32px;
  margin-bottom: 12px;
  color: #00ff88;
}

.hero p {
  font-size: 16px;
  max-width: 640px;
  margin: 0 auto;
  color: #dddddd;
}

.button-row {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  padding: 10px 16px;
  background: #ff7b00;
  border-radius: 4px;
  text-decoration: none;
  font-size: 14px;
  color: #ffffff;
}

.button.secondary {
  background: #333333;
}

/* MAIN CONTENT */

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 16px 48px;
}

section {
  margin-bottom: 32px;
}

section h2 {
  font-size: 22px;
  margin-bottom: 10px;
  color: #00ff88;
}

section p {
  font-size: 14px;
  line-height: 1.5;
  color: #dddddd;
}

/* FOOTER */

footer {
  border-top: 1px solid #222222;
  padding: 16px;
  text-align: center;
  font-size: 12px;
  color: #999999;
  background: #050505;
}

/* RESPONSIVE BEHAVIOR */

@media (max-width: 800px) {
  nav {
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    width: 100%;
    flex-direction: column;
    margin-left: 0;
    margin-top: 8px;
    display: none; /* hidden until opened */
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li a {
    padding: 8px 10px;
  }

  .hero {
    padding-top: 56px;
  }

  .hero h1 {
    font-size: 26px;
  }
}