body {
    font-family: 'Prompt', sans-serif;
    -webkit-tap-highlight-color: transparent;
    overflow: hidden;
    user-select: none;
}

#canvas {
    width: 100%;
    height: 100%;
    background: #f8fafc;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes emojiFloat {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 1; }
    100% { transform: translate(-50%, -120px) scale(1.5); opacity: 0; }
}

.animate-slide-up { animation: slideUp 0.4s ease-out forwards; }
.animate-fade-in { animation: fadeIn 0.6s ease-in forwards; }

.click-emoji {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    font-size: 28px;
    animation: emojiFloat 0.8s ease-out forwards;
}

@keyframes rippleWave {
    0% {
        transform: translate(-50%, -50%) scale(0.2);
        opacity: 1;
        border-width: 3px;
    }
    100% {
        transform: translate(-50%, -50%) scale(2);
        opacity: 0;
        border-width: 0.5px;
    }
}

.click-ripple {
    position: fixed;
    pointer-events: none;
    z-index: 99999;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(99, 102, 241, 0.8);
    border-radius: 50%;
    animation: rippleWave 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    box-shadow: 0 0 6px rgba(99, 102, 241, 0.4), inset 0 0 4px rgba(99, 102, 241, 0.2);
}

#qrcode img {
    margin: auto;
    border-radius: 0.75rem;
}

.hide-scrollbar::-webkit-scrollbar {
    display: none;
}
.hide-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.history-item-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
}

.history-item.expanded .history-item-content {
    max-height: 500px;
    opacity: 1;
    padding-top: 1rem;
    padding-bottom: 0.5rem;
}

.history-item.expanded .chevron-icon {
    transform: rotate(180deg);
}