@import url("https://fonts.googleapis.com/css2?family=League+Spartan:wght@700;800;900&family=Space+Mono:ital,wght@0,400;0,700;1,400&display=swap");

/* Tomorrow Night Eighties, the designfrontier.net palette */
:root {
  --ls-bg: #2d2d2d;
  --ls-surface: #393939;
  --ls-text: #ffffff;
  --ls-muted: #a0a0a0;
  --ls-coral: #f2777a;
  --ls-orange: #f99157;
  --ls-yellow: #ffcc66;
  --ls-green: #99cc99;
  --ls-teal: #66cccc;
  --ls-ink: #2d2d2d;
  --ls-gradient: linear-gradient(
    90deg,
    var(--ls-coral),
    var(--ls-orange),
    var(--ls-yellow),
    var(--ls-green)
  );
  --ls-display: "League Spartan", "Helvetica Neue", sans-serif;
  --ls-mono: "Space Mono", monospace;
}

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

.reveal::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 0.5rem;
  background: var(--ls-gradient);
  z-index: 20;
}

.reveal {
  font-family: var(--ls-mono);
}

.reveal .slides > section {
  bottom: 4rem;
}

.reveal section {
  line-height: 1.55;
  text-align: left;
}

.reveal section h1,
.reveal section h2 {
  font-family: var(--ls-display);
  font-weight: 900;
  color: var(--ls-coral);
  text-align: left;
  text-transform: none;
  margin: 0 0 1.5rem;
}

.reveal section h1 {
  font-size: 6rem;
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.reveal section h2 {
  font-size: 4rem;
  line-height: 1;
  letter-spacing: -0.015em;
}

.reveal section h3 {
  font-family: var(--ls-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ls-teal);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  text-align: left;
}

.reveal section h3::before {
  content: "// ";
  color: var(--ls-coral);
}

.reveal section p {
  font-size: 2.2rem;
  text-align: left;
}

.reveal section ul,
.reveal section ol {
  display: inline-block;
  font-size: 2.5rem;
  text-align: left;
  padding-top: 1rem;
}

.reveal section :is(ul, ol):has(> li:nth-child(8)) {
  font-size: 2rem;
  line-height: 1.4;
  padding-top: 0;
}

.reveal section li::marker {
  color: var(--ls-coral);
}

.reveal a {
  color: var(--ls-green);
  text-decoration: none;
}

.reveal a:hover {
  text-decoration: underline;
}

.reveal blockquote {
  font-family: var(--ls-mono);
  font-size: 2.6rem;
  font-style: italic;
  border-left: 0.3rem solid var(--ls-teal);
  padding-left: 2rem;
  margin: 0;
}

.reveal pre {
  font-family: var(--ls-mono);
  font-size: 1.5rem;
  text-align: left;
  background: var(--ls-surface);
  border-left: 0.3rem solid var(--ls-coral);
  padding: 1rem 1.5rem;
}

.reveal code {
  font-family: var(--ls-mono);
  font-size: 0.8em;
  color: var(--ls-yellow);
}

.reveal pre code {
  color: var(--ls-text);
}

.reveal strong {
  color: var(--ls-yellow);
}

.reveal em {
  color: var(--ls-teal);
}

img {
  display: block;
  margin: -5% auto;
  width: 55%;
  max-height: 70vh;
  object-fit: contain;
}

img.wide {
  width: 90%;
  max-height: 75vh;
}

.center-large img {
  display: block;
  width: auto;
  margin: 0 0 0 -6vw;
  max-height: 70vh;
  max-width: 70vw;
}

img.qr {
  width: 20vw;
  position: absolute;
  display: block;
  right: 0;
  bottom: 2rem;
  /* The PNG is charcoal with transparent modules, so this gradient paints the code itself. */
  border-radius: 0.75rem;
  background: conic-gradient(
    from var(--ls-qr-angle),
    var(--ls-coral),
    var(--ls-orange),
    var(--ls-yellow),
    var(--ls-green),
    var(--ls-coral)
  );
  animation: ls-qr-spin 12s linear infinite;
}

@property --ls-qr-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

@keyframes ls-qr-spin {
  to {
    --ls-qr-angle: 360deg;
  }
}

@media (prefers-reduced-motion: reduce) {
  img.qr {
    animation: none;
  }
}

.reveal section:has(img.qr) :is(h1, h2, p, ul, ol) {
  max-width: 60%;
}

.reveal .slide-background.start {
  background-color: #ffffff;
}

.reveal section.start h1,
.reveal section.start h2 {
  color: var(--ls-ink);
}

.reveal .slide-background.title {
  background: url("../Voze/2024/images/FBbOdKjVUAsMSLB.jpeg");
  background-size: cover;
}

.reveal .slide-background.questions {
  /* Photo: W.carter, CC BY-SA 4.0, via Wikimedia Commons */
  background: url("../2026/images/single-cloud-gotland.jpg") center bottom / cover;
}

.reveal section.questions h1 {
  font-size: 14rem;
  color: var(--ls-text);
  text-shadow: 0 0.3rem 2rem rgb(0 0 0 / 0.45);
}

.ska-heading h1 {
  color: #ff0055;
}