/* ==========================================
   FLIP CARDS PREMIUM - GLOBALFIBER
   ========================================== */

.flip-section {
  position: relative;
  padding: 7rem 5%;
  overflow: hidden;
}

.flip-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(255, 107, 0, 0.08), transparent 30%),
    radial-gradient(circle at bottom right, rgba(0, 51, 102, 0.08), transparent 30%);
  pointer-events: none;
}

.flip-section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.flip-section-header h2 {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  color: #003366;
}

.flip-section-header p {
  max-width: 750px;
  margin: 0 auto;
  color: #555;
  font-size: 1.05rem;
  line-height: 1.8;
}

/* GRID */

.flip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

/* CARD */

.flip-card {
  perspective: 1500px;
  height: 340px;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

/* FRONT & BACK */

.flip-card-front,
.flip-card-back {
  position: absolute;
  inset: 0;
  border-radius: 24px;
  padding: 2rem;
  backface-visibility: hidden;
  overflow: hidden;

  background: rgba(255,255,255,0.7);

  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

  border: 1px solid rgba(255, 107, 0, 0.15);

  box-shadow:
    0 10px 40px rgba(0,0,0,0.08),
    inset 0 1px 0 rgba(255,255,255,0.3);

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  transition:
    border 0.4s ease,
    box-shadow 0.4s ease,
    transform 0.4s ease;
}

/* Glow Effect */

.flip-card-front::before,
.flip-card-back::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 24px;
  padding: 1px;

  background:
    linear-gradient(
      135deg,
      rgba(255,107,0,0.35),
      rgba(0,51,102,0.2)
    );

  -webkitmask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);

  -webkit-mask-composite: xor;

  mask-composite: exclude;

  pointer-events: none;
}

/* FRONT */

.flip-card-front {
  text-align: center;
}

.flip-card-front i {
  font-size: 4rem;
  color: #ff6b00;
  margin-bottom: 1.4rem;

  filter:
    drop-shadow(0 0 12px rgba(255,107,0,0.4));

  animation: iconFloat 3s ease-in-out infinite;
}

.flip-card-front h3 {
  color: #003366;
  font-size: 1.5rem;
  font-weight: 800;
}

/* BACK */

.flip-card-back {
  transform: rotateY(180deg);
  text-align: center;
}

.flip-card-back h3 {
  color: #ff6b00;
  margin-bottom: 1rem;
  font-size: 1.4rem;
}

.flip-card-back p {
  color: #444;
  line-height: 1.8;
  font-size: 0.97rem;
}

/* Hover extra glow */

.flip-card:hover .flip-card-front,
.flip-card:hover .flip-card-back {
  box-shadow:
    0 20px 60px rgba(255,107,0,0.15),
    0 10px 40px rgba(0,51,102,0.15);

  border: 1px solid rgba(255,107,0,0.35);
}

/* Floating icon animation */

@keyframes iconFloat {
  0%,100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-10px);
  }
}

/* RESPONSIVE */

@media (max-width: 768px) {

  .flip-card {
    height: 300px;
  }

  .flip-card-front i {
    font-size: 3.2rem;
  }

  .flip-card-front h3,
  .flip-card-back h3 {
    font-size: 1.2rem;
  }

}