* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --red: #d91e1e;
  --blue: #1e3aa9;
  --yellow: #f5c400;
  --white: #ffffff;
  --black: #000000;
  --gap: 12px;
}

body {
  font-family: "Alata", sans-serif;
  font-weight: 400;
  font-style: normal;
    background:var(--black);
  color: var(--black);
  padding: 20px;
}

/* Cabecera */
.site-header {
  padding: 20px;
  margin-bottom: 20px;
  text-align: center;
  border: 8px solid var(--black);
  background: var(--white);
}

.site-header h1 {
  font-size: 72px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--black);
  letter-spacing: 6px;
}

/* Cuadro independiente */
.independent {
  width: 100%;
  min-height: 180px;
  margin-bottom: 20px;
  background: var(--yellow);
  color: var(--black);
  font-size: 28px;
  font-weight: bold;
  border: 8px solid var(--black);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.independent p {
  font-size: 16px;
  font-weight: normal;
  line-height: 1.6;
  text-align: justify;
}

/* Grid principal */
.grid-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

/* Estilo de cada cuadro */
.card {
  min-height: 220px;
  border: 8px solid var(--black);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 16px;
  font-size: 42px;
  font-weight: bold;
  color: var(--black);
  transition: all 0.4s ease;
}

#c1 {
  min-height: 200px;  /* aumenta la altura solo del cuadro 3 */
}

#c1, #c11, #c13 { background: var(--red); }
#c2, #c7, #c12, #c8, #c5 { background: var(--blue); color: var(--white); }
#c3, #c9, #c14 { background: var(--yellow); }
#c4, #c10, #c15, #c6 { background: var(--white); }

/* --------------------
   Variaciones de tamaños por cuadro
   -------------------- */

/* Fila 2 */
.row:nth-child(2) {
  grid-template-columns: 2fr 1fr 1fr; /* c4 más ancho */
}
#c4 { min-height: 500px; }   /* muy alto */
#c5 { min-height: 180px; }   /* compacto (botón principal) */
#c6 { min-height: 300px; }   /* mantener iframe */

/* Fila 3 */
.row:nth-child(3) {
  grid-template-columns: 1fr 1fr 1fr;
}
#c7 { min-height: 320px; }   /* mantener iframe */
#c8 { min-height: 250px; }   /* intermedio */
#c9 { min-height: 180px; }   /* pequeño */

/* Fila 4 */
.row:nth-child(4) {
  grid-template-columns: 1fr 2fr 1fr; /* c11 ocupa más ancho */
}
#c10 { min-height: 200px; }  /* estándar */
#c11 { min-height: 400px; }  /* alto para texto */
#c12 { min-height: 350px; }  /* mantener iframe */

/* Fila 5 */
.row:nth-child(5) {
  grid-template-columns: 1fr 2fr 1fr; /* c14 más ancho */
}
#c13 { min-height: 180px; }  /* compacto */
#c14 { min-height: 450px; }  /* destacado */
#c15 { min-height: 280px; }  /* mediano */



.card p {
  font-size: 19px;
  padding: 12px 20px;
  font-weight: normal;
  line-height: 1.2;
  text-align: justify;
}

/* Animación de slide */
.slide {
  overflow: hidden;
  max-height: 600px;
  opacity: 1;
  transition: max-height 0.6s ease, opacity 0.6s ease;
}

.slide.hidden {
  max-height: 0;
  opacity: 0;
  padding: 0;
  margin: 0;
}

.action-btn {
  padding: 12px 20px;
  font-size: 16px;
  font-weight: bold;
  background: #e6e6e6;
  color: var(--black);
  border: 4px solid var(--black);
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  text-transform: uppercase;
}

.action-btn:hover {
  background: var(--red);
  color: var(--white);
  transform: scale(1.05);
}

.action-btn:active {
  background: var(--blue);
  color: var(--white);
  transform: scale(0.95);
}

/* Contenedor responsivo para iframes */
.iframe-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; 
  height: 0;
  overflow: hidden;
  border-radius: 8px;
}

.iframe-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Responsivo */
@media (max-width: 768px) {
  .row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 500px) {
  .row {
    grid-template-columns: 1fr;
  }
}