/* Book of Answers */
.boa-shell {
    --boa-accent: #6b4ce6;
    --boa-accent-deep: #4a36b8;
    --boa-accent-soft: rgba(107, 76, 230, 0.1);
    --boa-panel-radius: 14px;
}

.boa-layout {
    margin-top: 0.25rem;
}

.boa-ask-panel,
.boa-share-panel {
    border-radius: var(--boa-panel-radius);
    padding: 1.15rem 1.25rem 1.35rem;
}

#boa-result-section {
    scroll-margin-top: 4.5rem;
}

.boa-textarea {
    min-height: 140px;
    resize: vertical;
    border-radius: 10px;
    font-size: 0.95rem;
    line-height: 1.55;
}

.boa-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.boa-field + .boa-field {
    margin-top: 1rem;
}

.boa-field-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--bs-secondary-color);
    letter-spacing: 0.02em;
}

.boa-segmented {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    padding: 0.25rem;
    border-radius: 10px;
    background: var(--boa-accent-soft);
}

.boa-segment {
    flex: 1 1 auto;
    min-width: 0;
    margin: 0;
    padding: 0.4rem 0.65rem;
    font-size: 0.8rem;
    text-align: center;
    border-radius: 8px;
    border: 1px solid transparent;
    color: var(--bs-body-color);
    background: transparent;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.btn-check:checked + .boa-segment {
    background: var(--bs-body-bg);
    color: var(--boa-accent-deep);
    border-color: rgba(107, 76, 230, 0.25);
    box-shadow: 0 1px 4px rgba(107, 76, 230, 0.15);
    font-weight: 600;
}

.boa-disclaimer {
    line-height: 1.5;
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    background: var(--boa-accent-soft);
}

.boa-btn-open {
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
    font-weight: 600;
    border-radius: 10px;
}

.boa-btn-open:disabled {
    opacity: 0.75;
}

/* Share panel — vertical stack */
.boa-share-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    min-height: 320px;
    padding: 2rem 1rem;
    text-align: center;
    color: var(--bs-secondary-color);
    border-radius: 12px;
    border: 2px dashed rgba(107, 76, 230, 0.2);
    background: var(--boa-accent-soft);
}

.boa-share-empty i {
    font-size: 2.5rem;
    opacity: 0.45;
}

.boa-share-ready {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

.boa-share-preview-wrap {
    display: flex;
    justify-content: center;
    padding: 1rem;
    border-radius: 12px;
    background: linear-gradient(160deg, rgba(107, 76, 230, 0.08), rgba(107, 76, 230, 0.02));
    border: 1px solid rgba(107, 76, 230, 0.12);
}

.boa-share-preview {
    width: auto;
    max-width: min(100%, 220px);
    height: auto;
    border-radius: 14px;
    box-shadow: 0 12px 40px rgba(45, 36, 88, 0.28);
}

.boa-colors-hint {
    line-height: 1.5;
    padding: 0.5rem 0.65rem;
    border-radius: 8px;
    background: var(--boa-accent-soft);
}

.boa-share-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding-top: 0.25rem;
}

.boa-share-actions .btn-primary {
    flex: 1 1 auto;
}

.boa-ref-banner {
    font-size: 0.9rem;
    border-radius: 10px;
}

/* Bridge loading page */
body.boa-bridge-page #bv-app {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 100svh;
}

main.boa-bridge-page-inner {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 0;
}

main.boa-bridge-page-inner .boa-bridge-shell {
    width: 100%;
}

.boa-bridge-page .boa-bridge-center {
    min-height: 280px;
}

.boa-bridge-page .boa-bridge-center .card-body {
    padding-top: 2.25rem;
}

.boa-loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    min-height: 68px;
    margin: 0.25rem auto 1rem;
    overflow: visible;
    flex-shrink: 0;
}

.boa-loading-icon {
    font-size: 2.5rem;
}

@media (min-width: 992px) {
    .boa-share-preview {
        max-width: 240px;
    }
}