/* Optimized Signature Widget - Canvas-based */
.signature-widget {
    position: relative;
    width: 100%;
    padding: 60px 20px;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 350px;
    touch-action: manipulation;
}

.signature-widget h3 {
    color: #00d4ff;
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    font-weight: 300;
    margin: 0 0 30px 0;
    opacity: 0.8;
    letter-spacing: 3px;
    text-transform: uppercase;
    text-align: center;
}

.signature-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.signature-canvas {
    cursor: crosshair;
    border-radius: 8px;
    transition: transform 0.3s ease;
    image-rendering: crisp-edges;
    image-rendering: -webkit-crisp-edges;
}

.signature-canvas:hover {
    transform: scale(1.02);
}

/* Subtle background pattern */
.signature-widget::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(0, 150, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .signature-widget {
        padding: 40px 15px;
        min-height: 250px;
    }
    
    .signature-widget h3 {
        font-size: 16px;
        margin-bottom: 25px;
        letter-spacing: 2px;
    }
    
    .signature-container {
        max-width: 90%;
    }
    
    .signature-canvas {
        cursor: pointer;
    }
    
    .signature-canvas:hover {
        transform: none; /* Disable hover transform on mobile */
    }
}

@media (max-width: 480px) {
    .signature-widget {
        padding: 30px 10px;
        min-height: 200px;
    }
    
    .signature-widget h3 {
        font-size: 14px;
        margin-bottom: 20px;
        letter-spacing: 1.5px;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .signature-canvas {
        image-rendering: crisp-edges;
        image-rendering: -webkit-crisp-edges;
        image-rendering: -moz-crisp-edges;
    }
}

/* Reduced motion accessibility */
@media (prefers-reduced-motion: reduce) {
    .signature-canvas {
        transition: none;
    }
    
    .signature-canvas:hover {
        transform: none;
    }
    
    .signature-widget::before {
        animation: none;
    }
}

/* Loading state */
.signature-widget.loading .signature-container::after {
    content: 'Loading signature...';
    position: absolute;
    color: #00d4ff;
    font-size: 14px;
    opacity: 0.6;
}

/* Performance optimization for animations */
.signature-canvas {
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* Subtle animation for the background */
@keyframes backgroundShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.signature-widget {
    background-size: 200% 200%;
    animation: backgroundShift 20s ease-in-out infinite;
}