/* =========================
   Global font for all slides
========================= */
.reveal {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* =========================
   All slide titles (##)
========================= */
.reveal h2 {
    color: #1A3E8E;  /* navy-ish Keynote blue */
}

/* All slide subtitles (###) */
.reveal h3 {
    color: #a83c21;  /* dark aqua */
}

/* =========================
   First slide (title slide)
========================= */
.reveal .title-slide {
    background-color: #000080; /* navy background */
    color: #D3D3D3;            /* grey text */
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center; /* vertical centering */
    align-items: center;     /* horizontal centering */
    height: 100%;
    position: relative;
}

/* First slide title */
.reveal .title-slide h1,
.reveal .title-slide h2 {
    color: #D3D3D3;
    font-size: 4em;
    margin-bottom: 0.5em;
    font-weight: bold;
}

/* First slide subtitle */
.reveal .title-slide h3 {
    color: #D3D3D3;
    font-size: 2em;
    margin-top: 0;
    font-weight: normal;
}

/* Author/date at bottom of first slide */
.reveal .title-slide .author,
.reveal .title-slide .date {
    color: #D3D3D3;
    font-size: 1em;
    position: absolute;
    bottom: 2em;
    width: 100%;
    text-align: center;
}