/* Custom Variable Palette */
:root {
  --bg-color: #FFF0C9;
  --accent-color: #243B8F;
}

/* Card transition states */
.card {
  display: none;
  opacity: 0;
  transform: translateY(20px) scale(0.98);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.card.active-card {
  display: flex;
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Heartbeat animation for welcome screen */
@keyframes heartbeat {
  0% { transform: scale(1); }
  15% { transform: scale(1.1); }
  30% { transform: scale(1); }
  45% { transform: scale(1.1); }
  60% { transform: scale(1); }
  100% { transform: scale(1); }
}

.animate-heartbeat {
  animation: heartbeat 2s infinite ease-in-out;
  transform-origin: center;
}

/* Custom Neo-brutalist buttons style */
.btn-custom {
  background-color: var(--accent-color);
  color: var(--bg-color);
  border: 2px solid var(--accent-color);
  box-shadow: 4px 4px 0px 0px rgba(36, 59, 143, 0.3);
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-custom:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px 0px rgba(36, 59, 143, 0.4);
}

.btn-custom:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0px 0px rgba(36, 59, 143, 0.3);
}

/* Floating background books styling */
.floating-book {
  position: absolute;
  bottom: -40px;
  color: rgba(36, 59, 143, 0.12); /* transparent navy blue */
  user-select: none;
  pointer-events: none;
  z-index: 0;
  animation: floatUp 7s linear forwards;
}

@keyframes floatUp {
  0% {
    transform: translateY(0) translateX(0) scale(0.6) rotate(0deg);
    opacity: 0;
  }
  15% {
    opacity: 0.8;
  }
  90% {
    opacity: 0.8;
  }
  100% {
    transform: translateY(-110vh) translateX(var(--random-x)) scale(var(--random-scale)) rotate(var(--random-rot));
    opacity: 0;
  }
}

/* Custom scrollbar for bucket list */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #FFF0C9;
}
::-webkit-scrollbar-thumb {
  background: #243B8F;
  border-radius: 4px;
}

/* Ticket notch cutouts */
.ticket-card {
  position: relative;
  background: #FFFDF7;
}

.ticket-notch-left, .ticket-notch-right {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #FFF0C9;
  z-index: 15;
}

.ticket-notch-left {
  left: -11px;
  border-right: 3px solid #243B8F;
}

.ticket-notch-right {
  right: -11px;
  border-left: 3px solid #243B8F;
}

/* Redeemed vintage stamp effect */
.stamp-redeemed {
  display: inline-block;
  padding: 0.35rem 1.25rem;
  text-transform: uppercase;
  font-weight: 900;
  color: #DC2626;
  border: 3px dashed #DC2626;
  border-radius: 12px;
  transform: rotate(-10deg);
  background: rgba(254, 242, 242, 0.85);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  letter-spacing: 0.15em;
}