/* ═══════════════════════════════════════════
   RA INNOVAVISION — casos.css
   Estilos exclusivos para portfolio/casos.html
   ═══════════════════════════════════════════ */

/* ─── HERO DE CASOS ─── */
.casos-hero {
  background: var(--black);
  padding: calc(var(--nav-height) + 60px) 0 80px;
  position: relative;
  overflow: hidden;
}

.casos-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(242,101,34,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242,101,34,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.casos-hero-glow {
  position: absolute;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242,101,34,0.18) 0%, transparent 70%);
  top: -200px; right: -100px;
  pointer-events: none;
}

.casos-hero-title {
  font-family: var(--font-display);
  font-size: clamp(52px, 8vw, 120px);
  line-height: 0.93;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.casos-hero-title span { color: var(--orange); }

.casos-hero-desc {
  font-size: 17px;
  font-weight: 300;
  color: rgba(255,255,255,0.5);
  max-width: 540px;
  line-height: 1.75;
  margin-bottom: 56px;
}

/* ─── INDEX CARDS (the 4 cards in hero) ─── */
.casos-index {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.casos-index-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 6px;
  padding: 24px 20px;
  text-decoration: none;
  transition: background .25s, border-color .25s, transform .25s;
  position: relative;
  overflow: hidden;
}

.casos-index-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s;
}

.casos-index-card:hover {
  background: rgba(242,101,34,0.08);
  border-color: rgba(242,101,34,0.35);
  transform: translateY(-3px);
}
.casos-index-card:hover::after { transform: scaleX(1); }

.casos-index-num {
  font-family: var(--font-display);
  font-size: 40px;
  color: rgba(242,101,34,0.25);
  line-height: 1;
}

.casos-index-tag {
  font-family: var(--font-condensed);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--orange);
}

.casos-index-title {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: 0.3px;
  flex: 1;
}

.casos-index-arrow {
  font-size: 18px;
  color: rgba(242,101,34,0.5);
  align-self: flex-end;
  transition: transform .25s, color .25s;
}
.casos-index-card:hover .casos-index-arrow {
  transform: translateY(3px);
  color: var(--orange);
}

/* ─── SEPARATOR BETWEEN ARTICLES ─── */
.caso-separator {
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(242,101,34,0.3), transparent);
}

/* ─── ARTICLE BASE ─── */
.caso-article {
  padding: 100px 0;
  background: var(--white);
}

.caso-article--dark {
  background: var(--black);
}

/* Header */
.caso-article-header {
  margin-bottom: 48px;
}

.caso-article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.caso-article-num {
  font-family: var(--font-display);
  font-size: 64px;
  color: rgba(242,101,34,0.2);
  line-height: 1;
}

.caso-article-tag {
  display: inline-block;
  background: var(--orange);
  color: var(--white);
  font-family: var(--font-condensed);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 2px;
}

.caso-article--dark .caso-article-num {
  color: rgba(242,101,34,0.3);
}

.caso-article-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 62px);
  line-height: 1;
  color: var(--black);
  letter-spacing: 0.5px;
  max-width: 820px;
  margin-bottom: 20px;
}
.caso-article--dark .caso-article-title { color: var(--white); }

.caso-article-lead {
  font-size: 18px;
  font-weight: 300;
  color: var(--gray-mid);
  max-width: 640px;
  line-height: 1.7;
}
.caso-article--dark .caso-article-lead { color: rgba(255,255,255,0.5); }

/* Main image */
.caso-article-img-main {
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 64px;
  aspect-ratio: 21/8;
  background: var(--gray-light);
}
.caso-article-img-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.caso-article--dark .caso-article-img-main { background: rgba(255,255,255,0.05); }

/* Body: text + side stats */
.caso-article-body {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 72px;
  align-items: start;
  margin-bottom: 64px;
}

.caso-article-text h3 {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--black);
  letter-spacing: 0.5px;
  margin: 32px 0 12px;
}
.caso-article-text h3:first-child { margin-top: 0; }
.caso-article--dark .caso-article-text h3 { color: var(--white); }

.caso-article-text p {
  font-size: 16px;
  color: var(--gray-dark);
  line-height: 1.8;
  font-weight: 300;
  margin-bottom: 12px;
}
.caso-article--dark .caso-article-text p { color: rgba(255,255,255,0.55); }

/* Side stats */
.caso-article-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}

.caso-article-highlight {
  background: var(--gray-light);
  border: 1px solid #E8E8E8;
  border-radius: 6px;
  padding: 20px 22px;
  border-left: 3px solid var(--orange);
}

.caso-article-highlight--light {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.08);
  border-left-color: var(--orange);
}

.caso-highlight-num {
  display: block;
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--orange);
  line-height: 1;
  margin-bottom: 6px;
}

.caso-highlight-label {
  display: block;
  font-size: 13px;
  font-weight: 300;
  color: var(--gray-mid);
  line-height: 1.45;
}
.caso-article-highlight--light .caso-highlight-label { color: rgba(255,255,255,0.4); }

/* Tags list */
.caso-article-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}
.caso-article-tags-list span {
  font-family: var(--font-condensed);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--orange);
  background: rgba(242,101,34,0.1);
  border: 1px solid rgba(242,101,34,0.25);
  padding: 4px 10px;
  border-radius: 2px;
}
.caso-article-tags-list--light span {
  background: rgba(242,101,34,0.15);
  border-color: rgba(242,101,34,0.3);
}

/* Gallery */
.caso-article-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 56px;
}

.caso-gallery-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.caso-gallery-item img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 6px;
  background: var(--gray-light);
  display: block;
}
.caso-article--dark .caso-gallery-item img {
  background: rgba(255,255,255,0.05);
}

.caso-gallery-item p {
  font-size: 12px !important;
  color: var(--gray-mid) !important;
  line-height: 1.4 !important;
  font-style: italic;
  margin: 0 !important;
}
.caso-article--dark .caso-gallery-item p { color: rgba(255,255,255,0.3) !important; }

/* Article CTA row */
.caso-article-cta {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.caso-next-link {
  font-family: var(--font-condensed);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--gray-mid);
  text-decoration: none;
  transition: color .2s;
}
.caso-next-link strong { color: var(--black); }
.caso-next-link:hover { color: var(--orange); }
.caso-next-link:hover strong { color: var(--orange); }

.caso-next-link--light { color: rgba(255,255,255,0.4); }
.caso-next-link--light strong { color: rgba(255,255,255,0.7); }
.caso-next-link--light:hover,
.caso-next-link--light:hover strong { color: var(--orange); }

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .casos-index { grid-template-columns: repeat(2, 1fr); }
  .caso-article-body { grid-template-columns: 1fr; gap: 40px; }
  .caso-article-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .caso-article-highlight { flex: 1 1 200px; }
}

@media (max-width: 768px) {
  .casos-hero { padding: calc(var(--nav-height) + 32px) 0 56px; }
  .casos-index { grid-template-columns: 1fr 1fr; gap: 10px; }
  .caso-article { padding: 72px 0; }
  .caso-article-gallery { grid-template-columns: 1fr 1fr; }
  .caso-article-img-main { aspect-ratio: 16/9; }
  .caso-article-cta { flex-direction: column; align-items: flex-start; gap: 16px; }
}

@media (max-width: 480px) {
  .casos-index { grid-template-columns: 1fr; }
  .caso-article-gallery { grid-template-columns: 1fr; }
}