/* --- CORE VISUALS --- */
body {
    font-family: 'Nunito', sans-serif;
    overflow: hidden;
    touch-action: none;
    transition: background 1.5s ease;
}

.font-hand {
    font-family: 'Dancing Script', cursive;
}

/* --- GLASSMORPHISM CARD --- */
.glass-panel {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
    border-radius: 30px;
}

/* --- ANIMATIONS --- */
@keyframes heartbeat {
    0% {
        transform: scale(1);
    }

    15% {
        transform: scale(1.05);
    }

    30% {
        transform: scale(1);
    }

    45% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

.animate-heartbeat {
    animation: heartbeat 3s infinite;
}

.typing-cursor::after {
    content: '';
    display: inline-block;
    width: 2px;
    height: 1em;
    background-color: currentColor;
    margin-left: 2px;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

/* --- CANVAS --- */
#canvas-wrapper {
    position: relative;
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1/1;
    margin: 0 auto;
    z-index: 20;
}

canvas {
    width: 100%;
    height: 100%;
    border-radius: 24px;
    box-shadow: inset 0 4px 15px rgba(0, 0, 0, 0.05), 0 10px 30px rgba(0, 0, 0, 0.05);
    background: rgba(255, 255, 255, 0.9);
}

/* --- BUTTONS --- */
.btn-modern {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-modern:active {
    transform: scale(0.95);
}