/* Main CSS for www.webprague.com */
/* Version: 2.1.0 - updated 2024-03-15 */

:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --bg-light: #f8f9fa;
  --text-dark: #212529;
  --max-width: 1140px;
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-light);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-right: auto;
  margin-left: auto;
  padding-right: 15px;
  padding-left: 15px;
}

/* Header */
.site-header {
  background: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.navbar-nav {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-link {
  color: var(--text-dark);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--secondary-color);
}

/* Main content */
.main {
  min-height: 70vh;
  padding: 2rem 0;
}

h1, h2, h3, h4, h5, h6 {
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--primary-color);
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--secondary-color);
}

.btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s;
}

.btn-primary {
  background: var(--secondary-color);
  color: #fff;
}

.btn-primary:hover {
  background: #2176ae;
}

/* Footer */
.site-footer {
  background: var(--primary-color);
  color: #ecf0f1;
  text-align: center;
  padding: 1rem 0;
  font-size: 0.875rem;
}

.site-footer a {
  color: #ecf0f1;
  text-decoration: underline;
}

/* Utility classes */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-3 { margin-bottom: 3rem; }

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 0.5rem;
  }
  .navbar-nav {
    flex-wrap: wrap;
    justify-content: center;
  }
}