:root {
    --border-accent: #0ea5e966;
    --bg-accent: #0ea5e915;
    --fill-accent: #0ea5e9;
    --text-accent: #0369a1;
    --text-secondary: #64748b;
}

#updateAvailable {
    display: none;
    width: fit-content;
    max-width: 420px;
    position: absolute;
    right: 18px;
    bottom: 5%;
    z-index: 50;
}

.update-banner {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    border: 0.5px solid var(--border-accent);
    background: var(--bg-accent);
    backdrop-filter: blur(8px);
}

.banner-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.banner-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.icon-wrap {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--fill-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.icon-wrap i {
    font-size: 16px;
    color: #fff;
}

.text-block {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.update-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-accent);
}

.update-sub {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.btn-update {
    font-size: 12px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 8px;
    background: var(--fill-accent);
    color: #fff;
    border: none;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: opacity 0.2s;
}

.btn-update:hover:not(:disabled) {
    opacity: 0.9;
}

.btn-update:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.progress-wrap {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.progress-track {
    height: 4px;
    border-radius: 99px;
    background: var(--border-accent);
    overflow: hidden;
    width: 100%;
}

.progress-fill {
    height: 100%;
    border-radius: 99px;
    background: var(--fill-accent);
    width: 0%;
    transition: width 0.3s ease;
}

.progress-meta {
    font-size: 11px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
}