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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #f4f4f9;
    color: #0066cc;
    line-height: 1.6;
    min-height: 100vh;
}

header, footer {
    background: #ffffff;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

footer {
    height: 40px;
    padding: 10px;
    width: 100%;
}

header {
    border-bottom: 1px solid #e0e0e0;
}

main {
    max-width: 100%;
    min-height: calc(100vh - 80px - 40px);
    padding: 1.5rem;
}

h1, h2, h3 {
    color: #222;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1rem;
}

.card {
    background: #ffffff;
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    margin-bottom: 1.5rem;
}

a {
    color: #0066cc;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
}

nav a {
    color: #555;
}

nav a:hover {
    color: #0066cc;
}