:root, .reveal {
  --deck-bg: #0f172a;
  --deck-surface: #1e293b;
  --deck-text: #f8fafc;
  --deck-muted: #94a3b8;
  --deck-primary: #f97316;
  --deck-accent: #22d3ee;
  --deck-heading-font: Inter, system-ui, sans-serif;
  --deck-body-font: Inter, system-ui, sans-serif;
  --deck-mono-font: JetBrains Mono, monospace;
  --deck-base-size: 28px;
  --deck-pad: 64px;
  --deck-gap: 28px;
  --deck-radius-card: 24px;
  --deck-radius-image: 20px;
}
.reveal { font-family: var(--deck-body-font); font-size: var(--deck-base-size); color: var(--deck-text); }
.reveal .slides { text-align: left; }
.reveal .deck-slide { background: var(--deck-bg); }
.reveal h1, .reveal h2, .reveal h3 { font-family: var(--deck-heading-font); color: var(--deck-text); text-transform: none; letter-spacing: -0.01em; margin: 0 0 0.2em; line-height: 1.1; }
.reveal h2 { font-size: 1.6em; }
.reveal p { line-height: 1.4; }
.reveal .deck-frame { display: flex; flex-direction: column; gap: var(--deck-gap); padding: var(--deck-pad); height: 100%; box-sizing: border-box; overflow: hidden; }
.reveal .deck-head { display: flex; flex-direction: column; gap: 8px; flex: 0 0 auto; }
.reveal .deck-body { display: flex; flex-direction: column; gap: var(--deck-gap); flex: 1 1 auto; min-height: 0; overflow: hidden; }
.reveal .deck-body-two_columns, .reveal .deck-body-comparison, .reveal .deck-body-image_right, .reveal .deck-body-image_left, .reveal .deck-body-data { display: grid; grid-template-columns: 1fr 1fr; gap: var(--deck-gap); align-items: center; }
.reveal .deck-body-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--deck-gap); align-content: start; }
.reveal .deck-body-cards > .deck-text { background: var(--deck-surface); border-radius: var(--deck-radius-card); padding: 20px 22px; font-size: 0.9em; }
.reveal .deck-col { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.reveal .deck-col-media { height: 100%; justify-content: center; }
.reveal .deck-col-media img, .reveal .deck-image img { width: 100%; max-height: 64vh; object-fit: cover; border-radius: var(--deck-radius-image); display: block; }
.reveal .deck-text { color: var(--deck-text); }
.reveal .deck-list { color: var(--deck-text); margin: 0; padding-left: 1.2em; }
.reveal .deck-list li { margin: 0.3em 0; line-height: 1.35; }
.reveal .deck-muted, .reveal [data-slot=subtitle] { color: var(--deck-muted); }
.reveal .deck-quote { font-size: 1.3em; border-left: 4px solid var(--deck-primary); padding-left: var(--deck-gap); font-style: italic; }
.reveal .deck-quote cite { display: block; margin-top: 12px; font-size: 0.7em; color: var(--deck-muted); font-style: normal; }
.reveal .deck-code { background: var(--deck-surface); border-radius: var(--deck-radius-card); padding: 16px 20px; }
.reveal .deck-code code { font-family: var(--deck-mono-font); }
.reveal .deck-table { width: 100%; border-collapse: collapse; }
.reveal .deck-table td { border: 1px solid var(--deck-surface); padding: 8px 12px; }
.reveal .deck-image { margin: 0; }
.reveal .deck-image figcaption { color: var(--deck-muted); font-size: 0.7em; margin-top: 8px; }
.reveal .deck-overlay { position: absolute; inset: 0; pointer-events: none; }
.reveal .deck-layout-title .deck-frame, .reveal .deck-layout-section .deck-frame, .reveal .deck-layout-closing .deck-frame, .reveal .deck-layout-full_bleed_image .deck-frame { justify-content: center; align-items: flex-start; }
.reveal .deck-layout-title h1, .reveal .deck-layout-closing h1 { font-size: 2.6em; }
.reveal .deck-layout-full_bleed_image .deck-frame { text-shadow: 0 2px 16px rgba(0,0,0,0.7); }
.reveal .deck-image-missing { color: var(--deck-muted); border: 1px dashed var(--deck-muted); border-radius: var(--deck-radius-image); padding: 24px; text-align: center; }