.auth-prompt-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, visibility 0.22s ease;
}

.auth-prompt-overlay.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.auth-prompt-overlay[hidden] {
    display: none !important;
}

.auth-prompt-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.78);
    backdrop-filter: blur(4px);
}

.auth-prompt-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 360px;
    padding: 28px 24px;
    border-radius: 16px;
    background: #121212;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 0, 0, 0.08);
    text-align: center;
}

.auth-prompt-card h4 {
    margin: 0 0 10px;
    font-family: 'Orbitron', Arial, sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
}

.auth-prompt-card p {
    margin: 0 0 22px;
    font-size: 14px;
    line-height: 1.6;
    color: #aaa;
}

.auth-prompt-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.auth-prompt-btn {
    display: block;
    padding: 13px 16px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.auth-prompt-btn--primary {
    background: linear-gradient(135deg, #cc0000, #ff0000);
    color: #fff;
    box-shadow: 0 6px 16px rgba(255, 0, 0, 0.25);
}

.auth-prompt-btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(255, 0, 0, 0.35);
}

.auth-prompt-btn--ghost {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-prompt-btn--ghost:hover {
    background: rgba(255, 255, 255, 0.1);
}

.auth-prompt-dismiss {
    margin-top: 16px;
    padding: 0;
    border: none;
    background: none;
    color: #777;
    font-size: 13px;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.auth-prompt-dismiss:hover {
    color: #bbb;
}