:root {
  --primary: #0070d2; 
  --primary-dark: #0056b3;
  --bg: #f4f7f9;
  --text: #1d2d35;
  --text-light: #5c666a;
  --white: #ffffff;
  --accent: #eef4ff;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --radius: 12px;
}

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

body { 
  font-family: 'Inter', -apple-system, system-ui, sans-serif; 
  line-height: 1.6; 
  color: var(--text); 
  background-color: var(--bg);
  padding-top: 80px;
}

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

header.sticky {
  position: fixed;
  top: 0; width: 100%;
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  z-index: 1000;
  padding: 10px 0;
}

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

.brand { font-weight: 800; font-size: 1.4rem; color: var(--primary); letter-spacing: -0.5px; text-decoration: none; }

nav a { text-decoration: none; color: var(--text-light); margin-left: 20px; font-weight: 500; font-size: 0.9rem; transition: 0.2s; }
nav a:hover { color: var(--primary); }

.disclaimer-box { 
  font-size: 0.75rem; 
  color: var(--text-light); 
  background: var(--accent);
  padding: 8px 15px;
  border-radius: 6px;
  margin-top: 8px;
  text-align: center;
}

/* Sections */
main { padding: 40px 0; }

section { 
  background: var(--white); 
  padding: 40px; 
  border-radius: var(--radius); 
  margin-bottom: 30px; 
  box-shadow: var(--shadow);
}

.hero { 
  text-align: center; 
  background: linear-gradient(135deg, var(--primary) 0%, #003a70 100%);
  color: white;
}
.hero h1 { font-size: 2.2rem; margin-bottom: 15px; }

h2, h3 { color: var(--primary-dark); margin-bottom: 15px; }
p { margin-bottom: 15px; }

ul, ol { margin-left: 20px; margin-bottom: 20px; }
li { margin-bottom: 8px; }

/* Components */
.paths { 
  background: #2d3436; 
  color: #fab1a0; 
  padding: 20px; 
  border-radius: 8px; 
  font-family: 'Courier New', monospace; 
  text-align: center;
  margin: 20px 0;
}

details { background: var(--accent); margin-bottom: 10px; border-radius: 8px; }
summary { padding: 15px 20px; cursor: pointer; font-weight: 600; outline: none; }
details p { padding: 0 20px 15px 20px; font-size: 0.95rem; }

footer { text-align: center; padding: 40px 0; color: var(--text-light); font-size: 0.85rem; }

@media (max-width: 600px) {
  body { padding-top: 110px; }
  .header-content { flex-direction: column; }
}