/* ============================================================================
   STUDENT DEVELOPER GUIDE — 5041 TRAINING HUB CSS

   This file controls visual styling. HTML supplies the content; CSS decides how
   that content looks and is arranged.

   IMPORTANT IDEAS FOR STUDENTS
   - A selector such as .dt-card styles every element with class="dt-card".
   - A selector such as #quizResult targets one unique id="quizResult" element.
   - More specific selectors can override less specific selectors.
   - Rules later in a stylesheet can override earlier rules when specificity is
     equal. This is called the CSS cascade.
   - CSS variables such as var(--red) come from a shared :root rule. Reuse them
     instead of hard-coding colors when possible.
   - !important forces a declaration to win many cascade conflicts. Use it only
     when necessary; too many !important rules make future editing difficult.
   - display:grid is used heavily for card layouts. grid-template-columns controls
     the number and size of columns; gap controls spacing between items.
   - max-width and margin: 0 auto are commonly used to keep content readable and
     horizontally centered.
   - Media queries near the bottom of many files adjust layouts for smaller screens.

   WHEN ADDING NEW STYLES
   1. Reuse an existing class if it already creates the appearance you need.
   2. If the style is module-specific, use the module prefix already in this file
      (for example dt-, judge-, media-, safety-) to avoid accidental conflicts.
   3. Put related rules together and add a short section comment.
   4. Test the slide at both large and small browser sizes.
   5. Avoid changing a shared selector unless you intend to change every page that
      uses it.
============================================================================ */
/* 5041 Training Hub stylesheet: FTC-training/modules/ftc-foundations-additions.css
   Organized during cleanup; selectors preserved to maintain module appearance. */

/* 5041 FTC Introduction module additions */
/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-hero .ftcintro-subtitle`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-hero .ftcintro-subtitle {
  max-width: 900px;
  margin: 0.4rem auto 0;
  font-family: "Droid Sans", Arial, sans-serif;
  font-size: 0.55em;
  font-weight: 700;
  color: var(--black);
}

/* STUDENT NOTE: Typography/spacing rule for `.reveal .ftcintro-slide h2, .reveal .ftcintro-vertical h2`. These values affect readability and vertical space on slides. */
.reveal .ftcintro-slide h2,
.reveal .ftcintro-vertical h2 {
  font-size: 1.45em;
  margin-bottom: 0.45rem;
}

/* STUDENT NOTE: Layout rule for `.reveal .ftcintro-grid-2, .reveal .ftcintro-grid-3, .reveal .ftcintro-grid-4, .reveal .ftcintro-role-grid, .reveal .ftcintro-sort-targets`. Grid properties here control columns, gaps, and alignment. */
.reveal .ftcintro-grid-2,
.reveal .ftcintro-grid-3,
.reveal .ftcintro-grid-4,
.reveal .ftcintro-role-grid,
.reveal .ftcintro-sort-targets {
  display: grid;
  gap: 0.8rem;
  max-width: var(--shared-slide-width, 1120px);
  margin: 0 auto;
}

/* STUDENT NOTE: Layout rule for `.reveal .ftcintro-grid-2`. Grid properties here control columns, gaps, and alignment. */
.reveal .ftcintro-grid-2 { grid-template-columns: repeat(2, 1fr); }
/* STUDENT NOTE: Layout rule for `.reveal .ftcintro-grid-3`. Grid properties here control columns, gaps, and alignment. */
.reveal .ftcintro-grid-3 { grid-template-columns: repeat(3, 1fr); }
/* STUDENT NOTE: Layout rule for `.reveal .ftcintro-grid-4`. Grid properties here control columns, gaps, and alignment. */
.reveal .ftcintro-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-card, .reveal .ftcintro-scenario-card`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-card,
.reveal .ftcintro-scenario-card {
  background: var(--light);
  border-left: 10px solid var(--red);
  border-radius: 8px;
  padding: 0.75rem 0.85rem;
  text-align: left;
}

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-card.dark`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-card.dark {
  background: var(--black);
  color: var(--white);
}

/* STUDENT NOTE: Typography/spacing rule for `.reveal .ftcintro-card.dark h3, .reveal .ftcintro-card.dark p, .reveal .ftcintro-card.dark li`. These values affect readability and vertical space on slides. */
.reveal .ftcintro-card.dark h3,
.reveal .ftcintro-card.dark p,
.reveal .ftcintro-card.dark li {
  color: var(--white);
}

/* STUDENT NOTE: Typography/spacing rule for `.reveal .ftcintro-card h3, .reveal .ftcintro-scenario-card h3`. These values affect readability and vertical space on slides. */
.reveal .ftcintro-card h3,
.reveal .ftcintro-scenario-card h3 {
  margin: 0 0 0.35rem;
  font-size: 0.7em;
}

/* STUDENT NOTE: Typography/spacing rule for `.reveal .ftcintro-card p, .reveal .ftcintro-scenario-card p`. These values affect readability and vertical space on slides. */
.reveal .ftcintro-card p,
.reveal .ftcintro-scenario-card p {
  margin: 0 0 0.35rem;
  font-size: 0.48em;
  line-height: 1.25;
}

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-card li`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-card li {
  font-size: 0.46em;
  line-height: 1.22;
  margin-bottom: 0.16rem;
}

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-card ul`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-card ul {
  margin: 0.2rem 0 0;
  padding-left: 0.9em;
}

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-callout`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-callout {
  max-width: var(--shared-slide-width, 1120px);
  margin: 0.8rem auto 0;
  padding: 0.6rem 0.8rem;
  background: var(--white);
  border-left: 10px solid var(--red);
  border-radius: 8px;
  text-align: left;
}

/* STUDENT NOTE: Typography/spacing rule for `.reveal .ftcintro-callout p`. These values affect readability and vertical space on slides. */
.reveal .ftcintro-callout p {
  margin: 0;
  font-size: 0.52em;
  line-height: 1.25;
}

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-process`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
  max-width: var(--shared-slide-width, 1120px);
  margin: 0 auto;
}

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-process div`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-process div {
  background: var(--light);
  border-left: 10px solid var(--red);
  border-radius: 8px;
  padding: 0.75rem 0.55rem;
  text-align: center;
}

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-process span`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-process span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 0.3rem;
  background: var(--red);
  color: var(--white);
  border-radius: 50%;
  font-family: "Droid Sans", Arial, sans-serif;
  font-size: 0.45em;
  font-weight: 700;
}

/* STUDENT NOTE: Typography/spacing rule for `.reveal .ftcintro-process p`. These values affect readability and vertical space on slides. */
.reveal .ftcintro-process p {
  margin: 0;
  font-size: 0.44em;
  line-height: 1.18;
  font-weight: 700;
}

/* Reveal/value cards */
/* STUDENT NOTE: Layout rule for `.reveal .ftcintro-role-grid`. Grid properties here control columns, gaps, and alignment. */
.reveal .ftcintro-role-grid {
  grid-template-columns: repeat(3, 1fr);
}

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-role-card, .reveal .ftcintro-role-card[aria-pressed=""]`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-role-card,
.reveal .ftcintro-role-card[aria-pressed="true"] {
  appearance: none;
  display: grid;
  place-items: center;
  min-height: 112px;
  background: var(--light) !important;
  color: var(--black) !important;
  border: 0 !important;
  border-left: 10px solid var(--red) !important;
  border-radius: 8px;
  padding: 0.65rem 0.75rem !important;
  font-family: "Droid Sans", Arial, sans-serif;
  font-size: 0.48em;
  font-weight: 700;
  line-height: 1.18;
  text-align: center;
  cursor: pointer;
  transform-origin: center;
}

/* STUDENT NOTE: Interaction state for `.reveal .ftcintro-role-card.revealed`. JavaScript may add/remove this class to provide visual feedback or control access. */
.reveal .ftcintro-role-card.revealed {
  background: var(--black) !important;
  color: var(--white) !important;
}

/* STUDENT NOTE: Styles elements matched by `.reveal .ftcintro-role-card.flipping`. Search the HTML for these class/id names before changing a shared rule. */
.reveal .ftcintro-role-card.flipping {
  animation: ftcintro-card-flip 0.42s ease;
}

/* STUDENT NOTE: Animation timeline. Percentage steps inside define how an animated element changes over time. */
@keyframes ftcintro-card-flip {
  /* STUDENT NOTE: Styles elements matched by `0%`. Search the HTML for these class/id names before changing a shared rule. */
  0% { transform: rotateY(0deg); }
  /* STUDENT NOTE: Styles elements matched by `50%`. Search the HTML for these class/id names before changing a shared rule. */
  50% { transform: rotateY(90deg); }
  /* STUDENT NOTE: Styles elements matched by `100%`. Search the HTML for these class/id names before changing a shared rule. */
  100% { transform: rotateY(0deg); }
/* STUDENT NOTE: Styles elements matched by `} .reveal .ftcintro-role-feedback, .reveal .ftcintro-scenario-feedback, .reveal .ftcintro-sort-feedback`. Search the HTML for these class/id names before changing a shared rule. */
}

.reveal .ftcintro-role-feedback,
.reveal .ftcintro-scenario-feedback,
.reveal .ftcintro-sort-feedback {
  /* STUDENT NOTE: Styles elements matched by `margin: 0.6rem auto 0; text-align: center; font-size: 0.42em; font-weight: 700; font-family: "", Arial, sans-serif; } .reveal .ftcintro-scenario-card`. Search the HTML for these class/id names before changing a shared rule. */
  margin: 0.6rem auto 0;
  text-align: center;
  font-size: 0.42em;
  font-weight: 700;
  font-family: "Droid Sans", Arial, sans-serif;
}

/* Scenario */
.reveal .ftcintro-scenario-card {
  /* STUDENT NOTE: Styles elements matched by `max-width: 980px; margin: 0 auto; } .reveal .ftcintro-scenario-options`. Search the HTML for these class/id names before changing a shared rule. */
  max-width: 980px;
  margin: 0 auto;
}

.reveal .ftcintro-scenario-options {
  /* STUDENT NOTE: Button styling for `display: grid; gap: 0.45rem; margin-top: 0.55rem; } .reveal .ftcintro-scenario-options button`. Keep hover/selected/correct states visually consistent with the base button. */
  display: grid;
  gap: 0.45rem;
  margin-top: 0.55rem;
}

.reveal .ftcintro-scenario-options button {
  /* STUDENT NOTE: Button styling for `background: var(--white); border: 2px solid var(--red); border-left: 10px solid var(--red); border-radius: 8px; padding: 0.45rem 0.6rem; color: var(--black); font-family: "", Arial, sans-serif; font-size: 0.4em; font-weight: 700; text-align: left; cursor: pointer; } .reveal .ftcintro-scenario-options button.correct`. Keep hover/selected/correct states visually consistent with the base button. */
  background: var(--white);
  border: 2px solid var(--red);
  border-left: 10px solid var(--red);
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
  color: var(--black);
  font-family: "Droid Sans", Arial, sans-serif;
  font-size: 0.4em;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.reveal .ftcintro-scenario-options button.correct {
  /* STUDENT NOTE: Button styling for `border-color: #2e7d32 !important; border-left-color: #2e7d32 !important; background: #e6f4ea !important; } .reveal .ftcintro-scenario-options button.incorrect`. Keep hover/selected/correct states visually consistent with the base button. */
  border-color: #2e7d32 !important;
  border-left-color: #2e7d32 !important;
  background: #e6f4ea !important;
}

.reveal .ftcintro-scenario-options button.incorrect {
  /* STUDENT NOTE: Styles elements matched by `border-color: #b00020 !important; border-left-color: #b00020 !important; background: #fdecea !important; } .reveal .ftcintro-sort-bank`. Search the HTML for these class/id names before changing a shared rule. */
  border-color: #b00020 !important;
  border-left-color: #b00020 !important;
  background: #fdecea !important;
}

/* Sort activities */
.reveal .ftcintro-sort-bank {
  /* STUDENT NOTE: Typography/spacing rule for `display: flex; flex-wrap: wrap; gap: 0.35rem; padding: 0.45rem; min-height: 90px; max-width: var(--shared-slide-width, 1120px); margin: 0 auto 0.55rem; background: var(--light); border: 3px dashed var(--gray); border-radius: 8px; } .reveal .ftcintro-sort-chip`. These values affect readability and vertical space on slides. */
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.45rem;
  min-height: 90px;
  max-width: var(--shared-slide-width, 1120px);
  margin: 0 auto 0.55rem;
  background: var(--light);
  border: 3px dashed var(--gray);
  border-radius: 8px;
}

.reveal .ftcintro-sort-chip {
  /* STUDENT NOTE: Typography/spacing rule for `background: var(--white); border: 2px solid var(--red); border-left: 8px solid var(--red); border-radius: 8px; padding: 0.32rem 0.45rem; font-size: 0.34em; font-weight: 700; font-family: "", Arial, sans-serif; cursor: grab; } .reveal .ftcintro-sort-targets.five-targets`. These values affect readability and vertical space on slides. */
  background: var(--white);
  border: 2px solid var(--red);
  border-left: 8px solid var(--red);
  border-radius: 8px;
  padding: 0.32rem 0.45rem;
  font-size: 0.34em;
  font-weight: 700;
  font-family: "Droid Sans", Arial, sans-serif;
  cursor: grab;
}

.reveal .ftcintro-sort-targets.five-targets {
  /* STUDENT NOTE: Layout rule for `grid-template-columns: repeat(5, 1fr); gap: 0.55rem; } .reveal .ftcintro-sort-targets.three-targets`. Grid properties here control columns, gaps, and alignment. */
  grid-template-columns: repeat(5, 1fr);
  gap: 0.55rem;
}

.reveal .ftcintro-sort-targets.three-targets {
  /* STUDENT NOTE: Layout rule for `grid-template-columns: repeat(3, 1fr); } .reveal .ftcintro-sort-zone`. Grid properties here control columns, gaps, and alignment. */
  grid-template-columns: repeat(3, 1fr);
}

.reveal .ftcintro-sort-zone {
  /* STUDENT NOTE: Typography/spacing rule for `min-height: 155px; background: var(--light); border-left: 10px solid var(--red); border-radius: 8px; padding: 0.42rem; text-align: center; } .reveal .ftcintro-sort-zone h3`. These values affect readability and vertical space on slides. */
  min-height: 155px;
  background: var(--light);
  border-left: 10px solid var(--red);
  border-radius: 8px;
  padding: 0.42rem;
  text-align: center;
}

.reveal .ftcintro-sort-zone h3 {
  /* STUDENT NOTE: Styles elements matched by `font-size: 0.46em; margin: 0 0 0.25rem; } .reveal .ftcintro-sort-list`. Search the HTML for these class/id names before changing a shared rule. */
  font-size: 0.46em;
  margin: 0 0 0.25rem;
}

.reveal .ftcintro-sort-list {
  /* STUDENT NOTE: Interaction state for `display: flex; flex-direction: column; gap: 0.25rem; min-height: 88px; } .reveal .ftcintro-sort-chip.correct`. JavaScript may add/remove this class to provide visual feedback or control access. */
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-height: 88px;
}

.reveal .ftcintro-sort-chip.correct {
  /* STUDENT NOTE: Interaction state for `background: #e6f4ea !important; border-color: #2e7d32 !important; border-left-color: #2e7d32 !important; color: var(--black) !important; } .reveal .ftcintro-sort-chip.incorrect`. JavaScript may add/remove this class to provide visual feedback or control access. */
  background: #e6f4ea !important;
  border-color: #2e7d32 !important;
  border-left-color: #2e7d32 !important;
  color: var(--black) !important;
}

.reveal .ftcintro-sort-chip.incorrect {
  /* STUDENT NOTE: Styles elements matched by `background: #fdecea !important; border-color: #b00020 !important; border-left-color: #b00020 !important; color: var(--black) !important; } .reveal .ftcintro-sort-chip.unplaced`. Search the HTML for these class/id names before changing a shared rule. */
  background: #fdecea !important;
  border-color: #b00020 !important;
  border-left-color: #b00020 !important;
  color: var(--black) !important;
}

.reveal .ftcintro-sort-chip.unplaced {
  /* STUDENT NOTE: Styles elements matched by `opacity: 0.65; outline: 3px dashed var(--gray); outline-offset: 2px; } .reveal .ftcintro-resource-row`. Search the HTML for these class/id names before changing a shared rule. */
  opacity: 0.65;
  outline: 3px dashed var(--gray);
  outline-offset: 2px;
}

/* Resource links */
.reveal .ftcintro-resource-row {
  /* STUDENT NOTE: Styles elements matched by `display: flex; flex-wrap: wrap; justify-content: center; gap: 0.55rem; max-width: var(--shared-slide-width, 1120px); margin: 0 auto; } .reveal .ftcintro-resource-row a`. Search the HTML for these class/id names before changing a shared rule. */
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  max-width: var(--shared-slide-width, 1120px);
  margin: 0 auto;
}

.reveal .ftcintro-resource-row a {
  /* STUDENT NOTE: Typography/spacing rule for `display: inline-block; background: var(--red); color: var(--white); font-family: "", Arial, sans-serif; font-weight: 700; font-size: 0.38em; text-decoration: none; padding: 0.4rem 0.6rem; border-radius: 6px; } .reveal .ftcintro-resource-row a:hover, .reveal .ftcintro-resource-row a:focus`. These values affect readability and vertical space on slides. */
  display: inline-block;
  background: var(--red);
  color: var(--white);
  font-family: "Droid Sans", Arial, sans-serif;
  font-weight: 700;
  font-size: 0.38em;
  text-decoration: none;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
}

.reveal .ftcintro-resource-row a:hover,
.reveal .ftcintro-resource-row a:focus {
  /* STUDENT NOTE: Button styling for `background: var(--black); color: var(--white); } .reveal .ftcintro-role-card:hover, .reveal .ftcintro-role-card:focus-visible, .reveal .ftcintro-scenario-options button:hover, .reveal .ftcintro-scenario-options button:focus-visible, .reveal .ftcintro-sort-chip:hover, .reveal .ftcintro-sort-chip:focus-visible`. Keep hover/selected/correct states visually consistent with the base button. */
  background: var(--black);
  color: var(--white);
}

.reveal .ftcintro-role-card:hover,
.reveal .ftcintro-role-card:focus-visible,
.reveal .ftcintro-scenario-options button:hover,
.reveal .ftcintro-scenario-options button:focus-visible,
.reveal .ftcintro-sort-chip:hover,
.reveal .ftcintro-sort-chip:focus-visible {
  /* STUDENT NOTE: Styles elements matched by `outline: 4px solid var(--red); outline-offset: 2px; } @media (max-width: 900px)`. Search the HTML for these class/id names before changing a shared rule. */
  outline: 4px solid var(--red);
  outline-offset: 2px;
}

@media (max-width: 900px) {
  /* STUDENT NOTE: Layout rule for `.reveal .ftcintro-grid-3, .reveal .ftcintro-grid-4, .reveal .ftcintro-role-grid, .reveal .ftcintro-process, .reveal .ftcintro-sort-targets.five-targets`. Grid properties here control columns, gaps, and alignment. */
  .reveal .ftcintro-grid-3,
  .reveal .ftcintro-grid-4,
  .reveal .ftcintro-role-grid,
  .reveal .ftcintro-process,
  .reveal .ftcintro-sort-targets.five-targets {
    grid-template-columns: 1fr 1fr;
  }

  /* STUDENT NOTE: Layout rule for `.reveal .ftcintro-grid-2, .reveal .ftcintro-sort-targets.three-targets`. Grid properties here control columns, gaps, and alignment. */
  .reveal .ftcintro-grid-2,
  .reveal .ftcintro-sort-targets.three-targets {
    grid-template-columns: 1fr;
  }
/* STUDENT NOTE: Styles elements matched by `} .reveal .ftcintro-quiz .quiz-card`. Search the HTML for these class/id names before changing a shared rule. */
}


/* FTC Intro quiz support */
.reveal .ftcintro-quiz .quiz-card {
  /* STUDENT NOTE: Typography/spacing rule for `max-width: 980px; margin: 0 auto; } .reveal .ftcintro-quiz .quiz-card p`. These values affect readability and vertical space on slides. */
  max-width: 980px;
  margin: 0 auto;
}

.reveal .ftcintro-quiz .quiz-card p {
  /* STUDENT NOTE: Styles elements matched by `font-size: 0.56em; } .reveal .ftcintro-quiz .quiz-card label`. Search the HTML for these class/id names before changing a shared rule. */
  font-size: 0.56em;
}

.reveal .ftcintro-quiz .quiz-card label {
  font-size: 0.42em;
}