html, body { overflow-x: hidden; width: 100%; position: relative; }

#thumbContainer { 
    display: flex; flex-wrap: nowrap; overflow-x: auto; 
    -webkit-overflow-scrolling: touch; scroll-behavior: smooth; min-height: 110px; 
}
#thumbContainer::-webkit-scrollbar { height: 6px; }
#thumbContainer::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }

#resultCanvas { 
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1); 
    display: block; transition: width 0.2s ease-out; transform-origin: top center; 
}

.transparent-bg {
    background-image: linear-gradient(45deg, #e5e7eb 25%, transparent 25%, transparent 75%, #e5e7eb 75%, #e5e7eb), 
                      linear-gradient(45deg, #e5e7eb 25%, transparent 25%, transparent 75%, #e5e7eb 75%, #e5e7eb);
    background-size: 20px 20px; background-position: 0 0, 10px 10px; background-color: #ffffff;
}

#common-ad-sidebar:empty {
    display: none;
}

#canvasWrapper { max-height: 70vh; }
.progress-bar-fill { transition: width 0.3s ease; }

.info-icon {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    cursor: help;
}

.tooltip-box {
    position: absolute;
    top: 160%; 
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: 260px;
    padding: 12px;
    background: #1e293b;
    color: #ffffff;
    font-size: 0.75rem;
    line-height: 1.6;
    border-radius: 12px;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.4);
    
    display: block;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: pre-wrap;
    text-align: left;
}

.tooltip-box::after {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    margin-left: -6px;
    border-width: 6px;
    border-style: solid;
    border-color: transparent transparent #1e293b transparent;
}

.info-icon:hover .tooltip-box, 
.info-icon:focus .tooltip-box,
.info-icon:focus-within .tooltip-box {
    visibility: visible !important;
    opacity: 1 !important;
    top: 140%;
}

@media (max-width: 640px) {
    .tooltip-box { width: 200px; }
}