// HRT theme colour references (from CSS custom properties in hrt-theme.css)
@hrt-orange: var(--hrt-orange);
@hrt-white: var(--hrt-white);
@hrt-slate: var(--hrt-slate);
@hrt-space: rgba(31, 31, 56, 0.75);

// HRT logo in bottom-left corner (avoids overlap with reveal.js controls)
.reveal::after {
  content: "";
  position: fixed;
  bottom: 16px;
  left: 20px;
  width: 60px;
  height: 42px;
  background: url("images/hrt-logo.png") no-repeat center / contain;
  z-index: 10;
  pointer-events: none;
}

// Slide structure
.reveal .slides {
  // Orange accent for section header slides
  section.section-header h2 {
    font-size: 2em;
    font-weight: 700;
    color: @hrt-white;
    border-bottom: 3px solid @hrt-orange;
    padding-bottom: 15px;
    display: inline-block;
  }

  // Content card: semi-transparent panel behind each leaf slide
  section section:not(.section-header) {
    background: @hrt-space;
    border-radius: 12px;
    padding: 30px 40px;
    box-sizing: border-box;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 130, 0, 0.1);
  }
}

.reveal section {
  img.no-border {
    border: none !important;
    box-shadow: none !important;
    background: none !important;
  }
  img.stretch {
    max-width: 100%;
    max-height: 100%;
  }
}

// Two-column layout
.col2 {
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  gap: 2em;

  > * {
    flex: 1;
  }
}

// Image utilities
.no-border {
  border: none !important;
  box-shadow: none !important;
}

// Attribution text
.attribution {
  font-size: 0.4em;
  font-style: italic;
  color: @hrt-slate;
  text-align: center;
  margin-top: 0.5em;
}

// Blaring TODO markers — visible on slides during development
.todo {
  background: #ff0040;
  color: #fff;
  font-weight: 700;
  font-size: 0.7em;
  padding: 8px 16px;
  border-radius: 6px;
  display: inline-block;
  margin: 8px 0;
  text-align: left;
}

// Talk-specific: FIX protocol message colouring
.soh {
  color: rgba(27, 145, 255);
}

.fix-key {
  color: #118626;
}

.fix-value {
  color: #7e7b7b;
}