html {
    font-size: 18px;
}

body {
    line-height: 1.6;
    color: var(--color-primary);
}

header {
    color: var(--color-primary);
}

/* Headings */
h1 {
    margin-top: 0.6em;
    margin-bottom: 0.2em;
    line-height: 1.25;
    font-size: 48px;
    font-weight: bold;
}

h2 {
    margin-top: 2em;
    margin-bottom: 0.5em;
    line-height: 1.25;
    font-size: 30px;
}

.lead {
    font-size: 1.125rem;
    opacity: 0.9;
}

article p {
    margin: 1em 0;
}

article h2 {
    margin-top: 2em;
}

/* Navigation links */
nav a {
    color: var(--color-primary);
    text-decoration: none;
    opacity: 0.9;
    line-height: 1.2;
}

nav a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Active nav link text emphasis */
header nav a.active,
header nav .btn.active {
    opacity: 1;
    font-weight: 600;
}

/* Footer text */
footer .footer-inner {
    color: #4b5563;
    font-size: 0.95rem;
}

footer .footer-right {
    opacity: 0.9;
}

/* Lists */
.material-list {
    list-style: none;
}