:root {
  --primary: #1a1a1a;
  --secondary: #2d2d2d;
  --accent: #f39c12; /* Gold/Mining accent */
  --text-main: #ffffff;
  --text-muted: #b0b0b0;
  --bg-body: #121212;
  --bg-card: #1e1e1e;
  --border: #333333;
  --success: #27ae60;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

nav {
  background-color: var(--primary);
  border-bottom: 2px solid var(--accent);
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

nav a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
}

nav .nav-links a {
  margin-left: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.3s ease;
}

nav .nav-links a:hover {
  color: var(--accent);
}

header {
  text-align: center;
  margin-bottom: 40px;
}

header h1 {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 10px;
}

header p {
  color: var(--text-muted);
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

h2 {
  margin-top: 30px;
  margin-bottom: 15px;
  color: var(--accent);
  border-left: 4px solid var(--accent);
  padding-left: 15px;
}

p {
  margin-bottom: 15px;
}

ul {
  margin-bottom: 15px;
  padding-left: 25px;
}

li {
  margin-bottom: 8px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  padding: 40px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

.btn {
  display: inline-block;
  background-color: var(--accent);
  color: var(--primary);
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: bold;
  text-decoration: none;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  background-color: #e67e22;
  text-decoration: none;
}

/* Contact form styles */
.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-muted);
}

input, textarea {
  width: 100%;
  padding: 12px;
  background-color: var(--secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-main);
  font-size: 1rem;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* Responsive */
@media (max-width: 600px) {
  nav .container {
    flex-direction: column;
    gap: 10px;
  }
  nav .nav-links a {
    margin: 0 10px;
  }
}