:root {
  --siris-blue: #21618c;
  --siris-dark-blue: #14365d;
  --siris-yellow: #f7c948;
  --text-dark: #1f2933;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Calibri, Arial, sans-serif;
  color: var(--text-dark);
  background: var(--bg-light);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  padding: 0 20px;
  margin: auto;
}

/* Header */
.site-header {
  background: white;
  border-bottom: 4px solid var(--siris-yellow);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  height: 44px;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--siris-dark-blue);
  font-weight: 600;
}

nav a.active {
  color: var(--siris-blue);
}

/* Content */
.content {
  padding: 50px 0;
}

h1 {
  color: var(--siris-dark-blue);
  margin-bottom: 10px;
}

h2 {
  color: var(--siris-blue);
  margin-top: 40px;
}

.last-updated {
  color: var(--text-light);
  margin-bottom: 30px;
}

ul {
  padding-left: 20px;
}

a {
  color: var(--siris-blue);
}

a:hover {
  text-decoration: underline;
}

/* Footer */
.site-footer {
  background: var(--siris-dark-blue);
  color: white;
  text-align: center;
  padding: 20px 0;
  margin-top: 60px;
}

.site-footer a {
  color: var(--siris-yellow);
  text-decoration: none;
}