/* Button effects for EduShare */

.pulse-btn {
  position: relative;
  overflow: hidden;
}

.pulse-btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 0;
  border-radius: 100%;
  transform: scale(1, 1) translate(-50%, -50%);
  transform-origin: 50% 50%;
}

.pulse-btn:hover::after {
  animation: pulse 1.5s ease-out;
}

@keyframes pulse {
  0% {
    transform: scale(0, 0) translate(-50%, -50%);
    opacity: 0;
  }
  25% {
    transform: scale(0.5, 0.5) translate(-50%, -50%);
    opacity: 1;
  }
  100% {
    transform: scale(10, 10) translate(-50%, -50%);
    opacity: 0;
  }
}

/* Advanced button styles */
.btn-3d {
  position: relative;
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  text-align: center;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.1);
  transition: all 0.2s;
  transform-style: preserve-3d;
  transform: perspective(800px) translateZ(0);
}

.btn-3d:hover {
  transform: perspective(800px) translateZ(10px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2), 0 6px 0 rgba(0, 0, 0, 0.1);
}

.btn-3d:active {
  transform: perspective(800px) translateZ(0);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.1);
  top: 4px;
}

/* Floating button */
.float-btn {
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0px);
  }
}

/* Attention button */
.attention-btn {
  position: relative;
  overflow: hidden;
}

.attention-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.2) 50%,
    transparent 100%
  );
  transition: left 0.7s;
}

.attention-btn:hover::before {
  left: 100%;
}