.mpxpdf-section {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 18px;
    align-items: start;
    padding: 18px;
    background: #f8fafc;
    font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #111;
    border-radius: 12px;
}

@media (max-width: 860px) {
    .mpxpdf-section {
        grid-template-columns: 1fr;
    }

    .mpxpdf-left {
        order: 2;
    }

    .mpxpdf-right {
        order: 1;
    }
}

.mpxpdf-left {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 6px 16px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    max-height: 70vh;
}

.mpxpdf-left-header {
    padding: 12px 16px;
    border-bottom: 1px solid #e5e7eb;
    font-weight: 600;
    font-size: 15px;
    background: #f9fafb;
}

.mpxpdf-list {
    overflow: auto;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mpxpdf-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 10px 12px;
    cursor: pointer;
    transition: all 0.15s ease;
}

    .mpxpdf-item:hover {
        background: #f0f7ff;
    }

    .mpxpdf-item.mpxpdf-active {
        background: #eaf4ff;
        border-color: #bcdcff;
        box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    }

.mpxpdf-title {
    font-weight: 600;
    font-size: 14px;
    color: #0b2540;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mpxpdf-desc {
    font-size: 13px;
    color: #5b6775;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mpxpdf-size {
    font-size: 12px;
    color: #334155;
    background: #eef6ff;
    padding: 3px 8px;
    border-radius: 999px;
    display: inline-block;
    margin-top: 4px;
    align-self: flex-start;
}

.mpxpdf-right {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 6px 16px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 14px;
    min-height: 70vh;
}

.mpxpdf-viewer {
    flex: 1;
    border: none;
    width: 100%;
    min-height: 65vh;
    border-radius: 8px;
    background: #000;
}

.mpxpdf-controls {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.mpxpdf-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mpxpdf-current-title {
    font-weight: 700;
    font-size: 16px;
    color: #07203a;
}

.mpxpdf-current-desc {
    font-size: 13px;
    color: #54606e;
}

.mpxpdf-buttons {
    display: flex;
    gap: 8px;
}

.mpxpdf-btn {
    border: none;
    background: #0b76ff;
    color: #fff;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s;
}

    .mpxpdf-btn:hover {
        background: #005ee6;
    }

    .mpxpdf-btn.secondary {
        background: transparent;
        border: 1px solid #d0e1ff;
        color: #0b76ff;
    }

        .mpxpdf-btn.secondary:hover {
            background: #e9f1ff;
        }