/* reveal-theme.css
 *
 * Custom reveal.js theme matching francis.begyn.be: monospace, dark
 * background, orange accent. Layered on top of reveal's own stylesheet
 * (link them both from the talk template, this one second).
 */

:root {
    /* Site palette */
    --site-bg: #1a1a1a;
    --site-fg: #f1f1f1;
    --site-accent: #ff8100;
    --site-accent-dim: #ba6600;
    --site-panel: #2a2a2a;
    --site-mono: Menlo, Monaco, "Lucida Console", "Liberation Mono",
                 "DejaVu Sans Mono", "Bitstream Vera Sans Mono",
                 "Courier New", monospace;
}

.reveal-viewport {
    background: var(--site-bg);
    background-color: var(--site-bg);
}

.reveal {
    --r-background-color: var(--site-bg);
    --r-main-font: var(--site-mono);
    --r-main-font-size: 46px;
    --r-main-color: var(--site-fg);
    --r-block-margin: 24px;
    --r-heading-margin: 0 0 30px 0;
    --r-heading-font: var(--site-mono);
    --r-heading-color: var(--site-accent);
    --r-heading-line-height: 1.2;
    --r-heading-letter-spacing: normal;
    --r-heading-text-transform: none;
    --r-heading-text-shadow: none;
    --r-heading-font-weight: 700;
    --r-heading1-text-shadow: none;
    --r-heading1-size: 2.4em;
    --r-heading2-size: 1.7em;
    --r-heading3-size: 1.3em;
    --r-heading4-size: 1.1em;
    --r-code-font: var(--site-mono);
    --r-link-color: var(--site-accent);
    --r-link-color-dark: var(--site-accent-dim);
    --r-link-color-hover: var(--site-fg);
    --r-selection-background-color: var(--site-accent);
    --r-selection-color: var(--site-bg);
    --r-overlay-element-bg-color: 240, 240, 240;
    --r-overlay-element-fg-color: 0, 0, 0;
    color: var(--site-fg);
    font-family: var(--site-mono);
    font-size: var(--r-main-font-size);
}

/* Lists. Force inline-block + text-align:left so the <ul> shrink-wraps
 * around its content. Without this rule the markdown plugin's <ul>
 * inherits the slide's text-align:center and the bullets end up
 * marooned at the slide's left edge while the text floats centre. */
.reveal ul,
.reveal ol,
.reveal dl {
    display: inline-block;
    text-align: left;
    margin: 0 0 0 1em;
    padding-left: 1em;
}
.reveal li {
    margin: 0.25em 0;
    line-height: 1.45;
}
.reveal li > ul,
.reveal li > ol {
    margin-left: 1em;
    margin-top: 0.25em;
}
.reveal p {
    line-height: 1.45;
    margin: 0 0 var(--r-block-margin);
}

.reveal a {
    color: var(--site-accent);
    text-decoration: none;
    border-bottom: 1px solid var(--site-accent-dim);
    transition: none;
}
.reveal a:hover {
    color: var(--site-bg);
    background-color: var(--site-accent);
    border-bottom-color: var(--site-accent);
    text-shadow: none;
}

.reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6 {
    color: var(--site-accent);
    font-family: var(--site-mono);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: normal;
    text-transform: none;
    text-shadow: none;
    word-wrap: break-word;
}

/* The site's blog/notes prepend "## ", "### " to headings; mirror that
 * inside slides so a talk feels recognisably "francis.begyn.be". */
.reveal h2:before { content: "## "; opacity: 0.6; }
.reveal h3:before { content: "### "; opacity: 0.6; }

.reveal blockquote {
    background: var(--site-panel);
    border-left: 3px solid var(--site-accent);
    box-shadow: none;
    color: var(--site-fg);
    padding: 0.6em 1em;
    width: auto;
    max-width: 90%;
}

.reveal pre {
    background: var(--site-panel);
    border: 1px solid #444;
    box-shadow: none;
    font-size: 0.55em;
    line-height: 1.3;
    width: 100%;
}
.reveal code {
    font-family: var(--site-mono);
}
.reveal pre code {
    color: var(--site-fg);
    padding: 1em;
    max-height: 500px;
}

/* Inline code: subtle highlight so it pops without being loud. */
.reveal :not(pre) > code {
    background: var(--site-panel);
    color: var(--site-accent);
    padding: 0.05em 0.4em;
    border-radius: 2px;
}

.reveal table {
    border-collapse: collapse;
    margin: auto;
}
.reveal table th,
.reveal table td {
    border: 1px solid #555;
    padding: 0.3em 0.6em;
}
.reveal table th {
    color: var(--site-accent);
}

/* Controls / progress / slide number — orange accent throughout. The
 * slide number sits at top-right so it doesn't fight with the
 * navigation arrows in the bottom-right corner. */
.reveal .controls {
    color: var(--site-accent);
}
.reveal .progress {
    color: var(--site-accent);
    background: rgba(255, 129, 0, 0.15);
    height: 4px;
}
.reveal .progress span {
    background: var(--site-accent);
}
.reveal .slide-number,
.reveal.has-dark-background .slide-number,
.reveal.has-light-background .slide-number {
    bottom: auto;
    right: 16px;
    top: 12px;
    left: auto;
    background: transparent;
    color: var(--site-accent-dim);
    font-family: var(--site-mono);
    font-size: 22px;
    padding: 0;
}
.reveal .slide-number a {
    color: var(--site-accent-dim);
    border-bottom: none;
    background: transparent;
}
/* Reveal renders "c/t" via separate <a> elements with a delimiter span
 * — when slideNumber: "c" is set the delimiter and total are absent. */

/* Speaker-notes overlay (S key) — match colours so it doesn't clash. */
.reveal .speaker-notes {
    background: var(--site-panel);
    color: var(--site-fg);
    border-color: #444;
    font-family: var(--site-mono);
}

/* Print/PDF export — keep slides on a near-black canvas so the PDF
 * matches what the audience saw. */
.reveal.pdf .slide-background {
    background: var(--site-bg);
}

/* ---- QR landing slide (presenter mode) -------------------------- */

.reveal section.qr-landing {
    text-align: center;
}
.reveal section.qr-landing h2 {
    margin-bottom: 0.6em;
}
.reveal section.qr-landing .qr {
    display: inline-block;
    background: #fff;
    padding: 16px;
    border: 2px solid var(--site-accent);
}
.reveal section.qr-landing .qr img,
.reveal section.qr-landing .qr canvas {
    display: block;
}
.reveal section.qr-landing .viewer-url {
    /* inline-block + auto margins centres the anchor while letting the
     * hover background hug the text instead of stretching across the
     * whole slide. Color/hover come from the global .reveal a rules. */
    display: inline-block;
    max-width: 90%;
    margin: 0.8em auto 0.2em;
    font-family: var(--site-mono);
    word-break: break-all;
}
.reveal section.qr-landing .hint {
    color: #aaa;
    font-size: 0.5em;
    margin-top: 0.4em;
}

/* ---- Viewer landing slide --------------------------------------- */

.reveal section.viewer-landing {
    text-align: center;
}
.reveal section.viewer-landing h2 {
    margin-bottom: 0.6em;
}
.reveal section.viewer-landing p {
    color: #aaa;
    font-size: 0.7em;
}