* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    background: #111;
    color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}
.container {
    text-align: center;
    max-width: 480px;
    width: 100%;
    padding: 20px;
}
.progress-section { margin: 24px 0; }
.progress-label {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #ccc;
}
.progress-bar-outer {
    background: #333;
    border-radius: 5px;
    overflow: hidden;
    height: 8px;
}
.progress-bar-inner {
    background: #0094f2;
    height: 100%;
    width: 0%;
    transition: width 0.4s ease;
    border-radius: 5px;
}
.progress-bar-inner.animated {
    width: 100%;
    background: linear-gradient(90deg, #0094f2 0%, #00c4f2 50%, #0094f2 100%);
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}
@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.file-info {
    font-size: 12px;
    color: #888;
    margin-top: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.error-message {
    color: #ff4444;
    margin-top: 24px;
    font-size: 14px;
}
.retry-link {
    color: #0094f2;
    cursor: pointer;
    text-decoration: underline;
    margin-top: 12px;
    display: inline-block;
    font-size: 14px;
}