/**
 * BarkThread center overlays — full viewport scrim, panel centered top-to-bottom
 */

.bt-overlay {
    position: fixed;
    inset: 0;
    z-index: 10050;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: max(1rem, env(safe-area-inset-top)) 1.25rem max(1rem, env(safe-area-inset-bottom));
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.28s ease, visibility 0.28s ease;
}

.bt-overlay.bt-overlay--open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.bt-overlay-scrim {
    position: absolute;
    inset: 0;
    background: rgba(10, 12, 18, 0.74);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.bt-overlay-panel {
    position: relative;
    z-index: 1;
    width: min(440px, 100%);
    max-height: calc(100dvh - 2.5rem);
    overflow-y: auto;
    background: #fffdf9;
    color: #2d2420;
    border-radius: 18px;
    border: 2px solid rgba(0, 0, 0, 0.06);
    box-shadow:
        0 28px 72px rgba(0, 0, 0, 0.38),
        0 0 0 1px rgba(255, 255, 255, 0.08) inset;
    transform: translateY(16px) scale(0.96);
    transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

.bt-overlay--open .bt-overlay-panel {
    transform: translateY(0) scale(1);
}

.bt-overlay-close {
    position: absolute;
    top: 0.65rem;
    right: 0.65rem;
    width: 2rem;
    height: 2rem;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.06);
    color: #5c4a3a;
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, color 0.2s ease;
}

.bt-overlay-close:hover {
    background: rgba(0, 0, 0, 0.12);
    color: #2d2420;
}

.bt-overlay-header {
    padding: 1.35rem 1.5rem 0.5rem;
    padding-right: 3rem;
}

.bt-overlay-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1.25;
}

.bt-overlay-body {
    padding: 0.75rem 1.5rem 1rem;
}

.bt-overlay-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: flex-end;
    padding: 0.75rem 1.5rem 1.35rem;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

body.bt-overlay-open {
    overflow: hidden;
}

@media (max-width: 480px) {
    .bt-overlay-panel {
        border-radius: 14px;
        max-height: calc(100dvh - 1.5rem);
    }

    .bt-overlay-header,
    .bt-overlay-body,
    .bt-overlay-footer {
        padding-left: 1.15rem;
        padding-right: 1.15rem;
    }
}