body, html {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.content {
    min-height: calc(100vh - 180px); /* Adjusted for subheader */
    background: linear-gradient(135deg, rgba(3,36,77,0.02) 0%, rgba(221,85,12,0.02) 100%);
}

#sheet {
    padding: 2rem;
}

/* Loading animation styles */
.ld-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, 
        #03244d,
        #dd550c,
        #03244d
    );
    background-size: 200% 100%;
    transform: scaleX(0);
    transform-origin: left;
    opacity: 0;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
                opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    box-shadow: 0 0 8px rgba(221,85,12,0.3);
}

.ld-loading.show {
    transform: scaleX(1);
    opacity: 1;
    animation: gradientMove 2s linear infinite,
               pulse 2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.ld-loading.hide {
    transform: scaleX(1);
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.ld-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent,
        rgba(255, 255, 255, 0.8),
        transparent
    );
    animation: shimmer 1.8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes gradientMove {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes pulse {
    0%, 100% { 
        height: 4px;
        box-shadow: 0 0 8px rgba(221,85,12,0.3);
    }
    50% { 
        height: 5px;
        box-shadow: 0 0 12px rgba(221,85,12,0.5);
    }
}