:root {
  --charm-bg: #14161a;
  --charm-panel: #1d2026;
  --charm-fg: #e8e8ea;
  --charm-muted: #8a8f99;
  --charm-yellow: #ffcc00;
  --charm-red: #d64545;
  --charm-green: #5fbf7a;
  --charm-blue: #6fa8dc;
}

html, body { background: var(--charm-bg); }

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

.reveal {
  font-family: "DejaVu Sans", Verdana, sans-serif;
  color: var(--charm-fg);
  font-size: 30px;
}

.reveal h1, .reveal h2, .reveal h3, .reveal h4 {
  color: var(--charm-yellow);
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0;
  margin: 0 0 0.35em 0;
  line-height: 1.1;
}
.reveal h1 { font-size: 2.0em; }
.reveal h2 { font-size: 1.45em; }
.reveal h3 { font-size: 1.1em; }

.reveal p, .reveal li { line-height: 1.3; }

.reveal .kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.5em;
  color: var(--charm-blue);
  margin-bottom: 0.6em;
}

.reveal .muted { color: var(--charm-muted); }
.reveal .small { font-size: 0.6em; }
.reveal .tiny { font-size: 0.48em; }
.reveal .accent { color: var(--charm-yellow); }
.reveal .green { color: var(--charm-green); }
.reveal .red { color: var(--charm-red); }
.reveal .blue { color: var(--charm-blue); }

.reveal section img {
  border: none;
  box-shadow: none;
  background: transparent;
  margin: 0;
  max-height: 62vh;
}
.reveal section img.diagram {
  background: transparent;
  border-radius: 10px;
  padding: 0;
  max-height: 66vh;
  max-width: 100%;
}
.reveal section img.framed {
  border-radius: 10px;
  padding: 6px;
  background-color: #1d2026;
  background-image:
    linear-gradient(45deg, #2a2f36 25%, transparent 25%),
    linear-gradient(-45deg, #2a2f36 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #2a2f36 75%),
    linear-gradient(-45deg, transparent 75%, #2a2f36 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}
.reveal section img.shot {
  border-radius: 10px;
  border: 1px solid #2a2f36;
}

.reveal .cols { display: flex; gap: 24px; align-items: center; justify-content: center; }
.reveal .cols > * { flex: 1 1 0; min-width: 0; }
.reveal .cols > img { flex: 1 1 0; min-width: 0; object-fit: contain; }
.reveal .cols.narrow-gap { gap: 10px; }

.reveal .grid { display: grid; gap: 12px; }
.reveal .grid.g2 { grid-template-columns: repeat(2, 1fr); }
.reveal .grid.g3 { grid-template-columns: repeat(3, 1fr); }
.reveal .grid.g4 { grid-template-columns: repeat(4, 1fr); }
.reveal .grid img { width: 100%; max-height: none; object-fit: contain; }

.reveal .card {
  background: var(--charm-panel);
  border: 1px solid #2a2f36;
  border-radius: 12px;
  padding: 18px 22px;
}

.reveal .badge {
  display: inline-block;
  font-size: 0.42em;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 20px;
  vertical-align: middle;
  margin-left: 8px;
  letter-spacing: 0.05em;
}
.reveal .badge.b { background: var(--charm-green); color: #0d0f12; }
.reveal .badge.q { background: var(--charm-blue); color: #0d0f12; }
.reveal .badge.i { background: var(--charm-muted); color: #0d0f12; }

.reveal table { font-size: 0.56em; border-collapse: collapse; width: 100%; }
.reveal table th { color: var(--charm-yellow); text-align: left; border-bottom: 1px solid #2a2f36; padding: 6px 10px; }
.reveal table td { border-bottom: 1px solid #23272e; padding: 6px 10px; color: var(--charm-fg); }

.reveal code, .reveal pre code {
  font-family: "DejaVu Sans Mono", Consolas, monospace;
  color: var(--charm-yellow);
}
.reveal pre { box-shadow: none; background: var(--charm-panel); border-radius: 10px; width: 100%; }
.reveal pre code { background: transparent; font-size: 0.6em; line-height: 1.25; padding: 16px; max-height: 60vh; }

.reveal .footnote {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.42em;
  color: var(--charm-muted);
}

.reveal .flow { font-family: "DejaVu Sans Mono", monospace; font-size: 0.55em; color: var(--charm-fg); line-height: 1.5; }
.reveal .flow .arrow { color: var(--charm-muted); }

.reveal .title-slide h1 { font-size: 2.4em; }
.reveal .title-slide .sub { font-size: 0.7em; color: var(--charm-muted); }

.reveal ul.compact { font-size: 0.62em; }
.reveal ul.compact li { margin-bottom: 0.25em; }