::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

.preview-wrap {
    border: 1px solid #e2e8f0;
    border-radius: 0.9rem;
    padding: 0.75rem;
    background: #f8fafc;
}

.code-block {
    width: 100%;
    overflow: hidden;
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.6;
}

.copy-code-btn {
    flex-shrink: 0;
}

.toast {
    position: fixed;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    background: #1e293b;
    color: #fff;
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}