/* Base Reset */
body {
  margin: 0;
  font-family: 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #222;
  background-color: #fff;
}

/* Layout Container */
main {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

/* Header */
header {
  background-color: #F7931A; /* Clean Bitcoin orange */
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
}

.branding {
  display: flex;
  align-items: center;
  gap: 0.5em;
}

header img.logo {
  height: 90px;
  width: auto;
  display: block;
  /* margin-right: 1rem; */
}

header .site-title {
  font-size: 2.7rem;
  font-weight: bold;
  flex-grow: 1;
  line-height: 1;
}

nav a {
  color: white;
  margin-left: 1.5rem;
  text-decoration: none;
  font-weight: bold;
}

nav a.launch {
  background-color: #222;
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

nav a.button {
  background-color: #222;
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

/* Hero */
#hero {
  background-color: #222;
  color: white;
  padding: 4rem 2rem;
  text-align: center;
}

#hero p {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

#hero a.button {
  background-color: #F7931A;
  color: white;
  text-decoration: none;
  padding: 0.6rem 1.2rem;
  margin: 0.5rem 0.5rem;
  border-radius: 4px;
  font-weight: bold;
  display: inline-block;
}

/* Section Headings */
section h2 {
  background-color: #F7931A;
  color: white;
  padding: 1rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  font-size: 1.75rem;
}

/* Lists */
ul, ol {
  padding-left: 1.5rem;
}

ul li, ol li {
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  background-color: #222;
  color: white;
  text-align: center;
  padding: 1rem 2rem;
  margin-top: 3rem;
}

.hamburger {
  display: none;
}

/* Responsive design */
@media (max-width: 768px) {
header {
  padding: 1rem 1rem;
}
  .branding img {
    height: 20px;
  }

  .logo {
    height: 32px;
  }

  .site-title {
    font-size: 1.5rem;
  }

  nav {
    display: none;
  }

  .hamburger {
    display: block;
    background: none;
    border: none;
    color: white;
    font-size: 3.5em;
    margin-left: auto;
  }

  .mobile-menu {
    display: none;
    flex-direction: column;
    background-color: #8D5B1E;
    gap: 0.5rem;
    margin-top: 3.5rem;
    border-radius: 6px;
    padding: 1em;
  }

  .mobile-menu a {
    padding: 0.5em 0;
    color: white;
    text-decoration: none;
  }

  .show {
    display: flex !important;
  }
}