:root {
  --primary: #2A2A2A;
  --secondary: #1A9FFF;
  --background: #2A2A2A;
  --footer-bg: #1A1A1A;
  --button: #1A9FFF;
  --text: #FFFFFF;
  --section-bg-1: #333333;
  --section-bg-2: #3A3A3A;
  --section-bg-3: #404040;
  --radius: 0.5rem;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

body {
  background-color: var(--background);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.7;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
}

p {
  margin-bottom: 1.5rem;
  max-width: 65ch;
}

a {
  color: var(--secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: white;
}

.btn {
  display: inline-block;
  background-color: var(--button);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 12px rgba(26, 159, 255, 0.2);
}

.card {
  background-color: var(--section-bg-1);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.15);
}

.section-bg-1 {
  background-color: var(--section-bg-1);
}

.section-bg-2 {
  background-color: var(--section-bg-2);
}

.section-bg-3 {
  background-color: var(--section-bg-3);
}

footer {
  background-color: var(--footer-bg);
  padding: 2rem 0;
}

input, textarea, select {
  background-color: var(--section-bg-1);
  border: 1px solid var(--section-bg-2);
  border-radius: var(--radius);
  padding: 0.75rem;
  color: var(--text);
  transition: border-color 0.3s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--secondary);
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .btn {
    padding: 0.5rem 1rem;
  }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease forwards;
}