.bb-submission-progress {
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(17, 31, 39, 0.72);
    opacity: 0;
    visibility: hidden;
    transition: opacity 180ms ease, visibility 180ms ease;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.bb-submission-progress.is-visible {
    opacity: 1;
    visibility: visible;
}

.bb-submission-progress__panel {
    width: min(440px, 100%);
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.68);
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.bb-submission-progress__heading {
    margin: 0 0 8px;
    color: #25343b;
    font: 700 21px/1.3 Arial, Helvetica, sans-serif;
}

.bb-submission-progress__status {
    min-height: 22px;
    margin: 0 0 20px;
    color: #617078;
    font: 400 14px/1.55 Arial, Helvetica, sans-serif;
}

.bb-submission-progress__track {
    position: relative;
    height: 12px;
    overflow: hidden;
    border-radius: 999px;
    background: #e8eff1;
}

.bb-submission-progress__bar {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #42c6ca, #50aee6);
    box-shadow: 0 0 16px rgba(66, 198, 202, 0.42);
    transition: width 220ms ease-out;
}

.bb-submission-progress__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    color: #819097;
    font: 600 12px/1.4 Arial, Helvetica, sans-serif;
    letter-spacing: 0.02em;
}

.bb-submission-progress__percentage {
    color: #288f9d;
    font-size: 15px;
    font-variant-numeric: tabular-nums;
}

body.bb-submission-progress-active {
    overflow: hidden;
}

@media (max-width: 520px) {
    .bb-submission-progress {
        padding: 16px;
    }

    .bb-submission-progress__panel {
        padding: 24px 20px;
        border-radius: 15px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .bb-submission-progress,
    .bb-submission-progress__bar {
        transition: none;
    }
}