/* Palette taken from the biology.duke.edu theme CSS (tts_base / tts_sub). */
:root {
    --duke-navy:#012169;      /* h2, link hover */
    --duke-royal:#00539B;     /* header, footer, links, h3 */
    --shale-blue:#0577B1;     /* h4 */
    --taupe:#8E7969;          /* h1 */
    --biology-green:#628000;  /* buttons (Biology sub-theme) */
    --biology-green-dark:#4E6600; /* button hover */
    --dandelion:#FFD960;      /* focus outline, footer headings */
    --hatteras:#E2E6ED;       /* tinted section background */
    --whisper-gray:#F3F2F1;
    --cast-iron:#262626;      /* body text, nav bar */
    --graphite:#666666;       /* h5, secondary text */
    --granite:#B5B5B5;
    --limestone:#E5E5E5;      /* nav hover, light section background */
    --input-border:#CED4DA;
}