/* =============================================================
   RF CASE STUDY — PAGE-SPECIFIC STYLES
   Builds on top of tokens + base + components + fanatics.css
   (fanatics.css provides all shared case-study patterns).
   Scope: rf.html only.
   data-theme="rf" resolves to the same blue palette as
   data-theme="fanatics": --accent-dark #375A89, etc.
   ============================================================= */


/* -------------------------------------------------------------
   2×2 APPROACH STEPS GRID
   4 step cards laid out in two rows of two.
   Step label / title (serif 20px) / body text.
   ------------------------------------------------------------- */
.cs-approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--color-line-stroke);
  margin-top: 32px;
}

.cs-approach-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px;
  border-right: 1px solid var(--color-line-stroke);
  border-bottom: 1px solid var(--color-line-stroke);
}

/* Remove right border from even cards (right column) */
.cs-approach-card:nth-child(even) {
  border-right: none;
}

/* Remove bottom border from last row */
.cs-approach-card:nth-child(3),
.cs-approach-card:nth-child(4) {
  border-bottom: none;
}

.cs-approach-card__step {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 400;
  color: var(--color-zinc-400);
}

.cs-approach-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  line-height: var(--lh-h3);
  font-weight: 600;
  color: var(--color-zinc-900);
}

.cs-approach-card__body {
  font-family: var(--font-body);
  font-size: var(--text-body-base);
  line-height: var(--lh-body-base);
  color: var(--color-zinc-600);
}

@media (max-width: 799px) {
  .cs-approach-grid {
    grid-template-columns: 1fr;
  }

  .cs-approach-card {
    border-right: none;
    border-bottom: 1px solid var(--color-line-stroke);
  }

  /* Restore bottom border on the 3rd card when stacked */
  .cs-approach-card:nth-child(3) {
    border-bottom: 1px solid var(--color-line-stroke);
  }

  .cs-approach-card:last-child {
    border-bottom: none;
  }
}


/* -------------------------------------------------------------
   INSIGHT ITEMS
   Full-width stacked items with title + body, separated by
   horizontal rules (no card chrome).
   ------------------------------------------------------------- */
.cs-insight-list {
  list-style: none;
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 720px;
}

.cs-insight-item {
  padding: 0;
}

.cs-insight-item__title {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  line-height: var(--lh-h3);
  font-weight: 600;
  color: var(--color-zinc-900);
  margin-bottom: 12px;
}

.cs-insight-item__body {
  font-family: var(--font-body);
  font-size: var(--text-body-base);
  line-height: var(--lh-body-base);
  color: var(--color-zinc-600);
}


/* -------------------------------------------------------------
   CONSTRAINT NOTE
   Highlighted callout block for constraints / caveats.
   No quote marks — uses accent border + very light tint.
   ------------------------------------------------------------- */
.cs-note {
  background: var(--accent-lighter);
  border-left: 3px solid var(--accent-dark);
  padding: 20px 24px;
  margin-top: 32px;
  border-radius: 0 2px 2px 0;
  max-width: 720px;
}

.cs-note__text {
  font-family: var(--font-body);
  font-size: var(--text-body-base);
  line-height: var(--lh-body-base);
  color: var(--color-zinc-600);
  font-weight: 400;
  font-style: italic;
}


/* -------------------------------------------------------------
   RESEARCH FINDING CARDS
   4 full-width stacked cards. Each card contains a finding
   number, title, inline quote, and labelled pain/opportunity rows.
   ------------------------------------------------------------- */
.cs-finding-list {
  list-style: none;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cs-finding-item {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--color-line-stroke);
  border-radius: 2px;
  background-color: var(--color-white);
}

/* Override the global cs-quote style when nested inside a finding card.
   Oversized ghosted quotation mark; text overlaps slightly into the mark. */
.cs-finding-item .cs-quote {
  position: relative;
  background: none;
  border-left: none;
  padding: 0 0 0 54px;
  margin-top: 0;
  font-family: var(--font-body);
  font-style: italic;
  font-size: var(--text-body-base);
  line-height: var(--lh-body-base);
  color: var(--color-zinc-600);
}

.cs-finding-item .cs-quote::before {
  content: '\201C';
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  font-family: var(--font-heading);
  font-size: 96px;
  line-height: 1;
  color: var(--accent-dark);
  opacity: 0.18;
  pointer-events: none;
}

.cs-finding-item__number {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 600;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.cs-finding-item__title {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  line-height: var(--lh-h3);
  font-weight: 600;
  color: var(--color-zinc-900);
}

/* Side-by-side Pain Point / Opportunity columns */
.cs-finding-item__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  border-top: 1px solid var(--color-line-stroke);
  padding-top: 16px;
}

.cs-finding-item__meta-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cs-finding-item__meta-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 600;
  color: var(--color-zinc-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Pain point label — red + warning icon */
.cs-finding-item__meta-row:not(.cs-finding-item__meta-row--opportunity) .cs-finding-item__meta-label {
  color: var(--accent-dark);
}

.cs-finding-item__meta-row:not(.cs-finding-item__meta-row--opportunity) .cs-finding-item__meta-label::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background-color: currentColor;
  flex-shrink: 0;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cline x1='2' y1='2' x2='10' y2='10' stroke='black' stroke-width='1.5' stroke-linecap='round'/%3E%3Cline x1='10' y1='2' x2='2' y2='10' stroke='black' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cline x1='2' y1='2' x2='10' y2='10' stroke='black' stroke-width='1.5' stroke-linecap='round'/%3E%3Cline x1='10' y1='2' x2='2' y2='10' stroke='black' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

/* Opportunity label — green + lightbulb icon; body stays grey */
.cs-finding-item__meta-row--opportunity .cs-finding-item__meta-label {
  color: #2d7d4f;
}

.cs-finding-item__meta-row--opportunity .cs-finding-item__meta-label::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background-color: currentColor;
  flex-shrink: 0;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpolyline points='1.5,6.5 4.5,9.5 10.5,2.5' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpolyline points='1.5,6.5 4.5,9.5 10.5,2.5' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

.cs-finding-item__meta-body {
  font-family: var(--font-body);
  font-size: var(--text-body-s);
  line-height: var(--lh-body-base);
  color: var(--color-zinc-600);
}

@media (max-width: 799px) {
  .cs-finding-item {
    padding: 20px;
  }

  .cs-finding-item__meta {
    grid-template-columns: 1fr;
  }
}


/* -------------------------------------------------------------
   IMAGE BLOCKS — REAL IMAGES
   Override fanatics.css height: 100% so images size naturally.
   margin and cs-image-stack are handled in fanatics.css.
   ------------------------------------------------------------- */
.cs-image-block img {
  height: auto;
}


/* -------------------------------------------------------------
   IMAGE ASPECT-RATIO VARIANTS
   --pivot: 820×490 (used for design process images)
   ------------------------------------------------------------- */
.cs-image-block--pivot {
  aspect-ratio: 820 / 490;
}