@import url('https://fonts.googleapis.com/css2?family=Great+Vibes&display=swap');

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

body {
  width: 100%;
  min-height: 100vh;
  font-family: 'Great Vibes', cursive;
  overflow: hidden;
}

/* ─── Layout principal ─────────────────────────────────── */
.pagina {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ─── Fondo ────────────────────────────────────────────── */
.fondo {
  position: absolute;
  inset: 0;
  background-image: url('./img/fondo01.jpg');
  background-size: cover;
  background-position: center;
  z-index: 0;
}

/* ─── Collage izquierda ────────────────────────────────── */
.collage {
  position: relative;
  z-index: 1;
  width: 50%;
  height: 100%;
  display: flex;
  align-items: flex-end;
}

.collage img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: bottom left;
}

/* ─── Columna de ejercicios ────────────────────────────── */
.ejercicios {
  position: relative;
  z-index: 1;
  width: 48%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  padding-right: 4%;
}

/* ─── Cada marco ───────────────────────────────────────── */
.marco {
  position: relative;
  width: 85%;
  max-width: 380px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
              filter 0.35s ease;
  cursor: pointer;
}

/* El <a> ocupa todo el marco y centra su contenido */
.marco a {
  text-decoration: none;
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Imagen del marco como fondo absoluto */
.marco .fondo-marco {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: fill;
  z-index: 0;
  transition: filter 0.35s ease;
}

/* Texto del ejercicio */
.marco span {
  position: relative;
  z-index: 1;
  font-family: 'Great Vibes', cursive;
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  line-height: 1;
  transition: color 0.35s ease;
  text-align: center;
  pointer-events: none;
}

/* ─── Colores por marco ────────────────────────────────── */
.marco-1 span { color: #c0392b; }   /* rojo oscuro */
.marco-2 span { color: #b8860b; }   /* dorado      */
.marco-3 span { color: #1a237e; }   /* azul marino  */

/* ─── Hover ────────────────────────────────────────────── */
.marco:hover {
  transform: scale(1.07);
  filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.35));
}

.marco-1:hover span { color: #e74c3c; }
.marco-2:hover span { color: #f1c40f; }
.marco-3:hover span { color: #008dfa; }

.marco:hover .fondo-marco {
  filter: brightness(1.08);
}

/* ─── Reducir movimiento ───────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .marco,
  .marco span,
  .marco .fondo-marco {
    transition: none;
  }
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════ */

/* ── Tablet apaisada / pantalla media (max 1024px) ──── */
@media (max-width: 1024px) {
  .ejercicios {
    gap: 28px;
    padding-right: 3%;
  }

  .marco {
    height: 170px;
    max-width: 340px;
  }
}

/* ── Tablet portrait / móvil grande (max 768px) ─────── */
@media (max-width: 768px) {
  body {
    overflow-y: auto;
    overflow-x: hidden;
  }

  .pagina {
    flex-direction: column;
    height: auto;
    min-height: 100vh;
    align-items: center;
    justify-content: flex-start;
  }

  /* El fondo cubre toda la página aunque se haga scroll */
  .fondo {
    position: fixed;
  }

  .collage {
    width: 100%;
    height: 38vh;
    min-height: 200px;
    justify-content: center;
  }

  .collage img {
    object-position: bottom center;
  }

  .ejercicios {
    width: 100%;
    padding: 24px 20px 40px;
    gap: 24px;
    align-items: center;
  }

  .marco {
    width: 80%;
    max-width: 320px;
    height: 160px;
  }

  .marco span {
    font-size: clamp(1.6rem, 6vw, 2.4rem);
  }
}

/* ── Móvil pequeño (max 480px) ───────────────────────── */
@media (max-width: 480px) {
  .collage {
    height: 32vh;
    min-height: 160px;
  }

  .ejercicios {
    gap: 18px;
    padding: 16px 16px 32px;
  }

  .marco {
    width: 88%;
    max-width: 280px;
    height: 130px;
  }

  .marco span {
    font-size: clamp(1.4rem, 7vw, 2rem);
  }
}

/* ── Móvil muy pequeño (max 360px) ──────────────────── */
@media (max-width: 360px) {
  .marco {
    height: 110px;
  }

  .marco span {
    font-size: clamp(1.2rem, 7.5vw, 1.8rem);
  }
}