body {
  margin: 0;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  background: transparent;
  color: #fff;
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* 🔥 SIDEBAR */
#catalog-container {
  width: 260px;
  min-width: 220px;
  max-width: 300px;
  height: 100vh;
  overflow-y: auto;
  background: transparent;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 🔥 VISOR */
#vh-container {
  flex: 1;
  height: 100vh;
  background: transparent;
}

/* TARJETA */
.scene-card {
  background: #1a1a1a;
  border-radius: 12px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  transition: 0.2s;
  cursor: pointer;
}

.scene-card:hover {
  background: #222;
}

/* ACTIVA */
.scene-card.active {
  outline: 2px solid cyan;
  background: #202020;
  border-radius: 12px;
}

/* PREVIEW */
.scene-preview {
  width: 100%;
  height: 100px;
  border-radius: 8px;
  background: linear-gradient(135deg, #111, #222);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: #666;
  margin-bottom: 8px;
}

/* TITULO */
.scene-title {
  font-size: 13px;
  text-align: center;
  margin-bottom: 6px;
}

/* BOTONES */
.scene-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: center;
}

.scene-buttons button {
  flex: 1;
  min-width: 80px;
  padding: 5px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  background: rgba(0,255,255,0.12);
  color: #fff;
  font-size: 11px;
  transition: 0.2s;
}

.scene-buttons button:hover {
  background: rgba(0,255,255,0.25);
}

/* WATERMARK */
.catalog-watermark {
  position: fixed;
  bottom: 12px;
  right: 12px;
  width: 70px;
  opacity: 0.7;
}

/* 📱 MOBILE */
@media (max-width: 768px) {
  body {
    flex-direction: column;
    overflow: auto;
  }

  #catalog-container {
    width: 100%;
    height: auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-right: none;
  }

  #vh-container {
    width: 100%;
    height: 50vh;
  }
}