/* 基礎佈局 */
.mvs-split-container { display: flex; gap: 50px; margin-top: 40px; padding-top: 60px; align-items: flex-start; }
.mvs-left-main { flex: 1; min-width: 0; }
.mvs-right-sidebar { flex: 0 0 320px; position: sticky; top: 100px; z-index: 10; }

/* Sidebar 樣式 */
.mvs-sidebar-card { background: #fff; border: 1px solid #eee; border-radius: 12px; padding: 25px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
.mvs-btn-reg { background: #5e1b87; color: #fff !important; display: block; text-align: center; padding: 10px; border-radius: 8px; font-size: 20px; font-weight: bold; text-decoration: none; border: none; width: 100%; cursor: pointer; }
.mvs-btn-reg { transition: background-color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease; }
.mvs-btn-reg:hover:not(:disabled) {
    background: #000000 !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(95, 24, 132, 0.1);
}

/* Pop-up Modal 核心樣式 */
#mvs-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    backdrop-filter: blur(5px);
}

#mvs-form-modal {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    overflow-y: auto;
}

.mvs-modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 30px;
    cursor: pointer;
    color: #aaa;
    line-height: 1;
}

.mvs-modal-close:hover { color: #333; }

#show-mvs-form,
.mvs-action-area { display: none !important; }

@media (max-width: 900px) {
    .mvs-split-container { flex-direction: column; }
    .mvs-right-sidebar { position: static; width: 100%; margin-bottom: 30px; }
    #mvs-form-modal { padding: 25px; }
    .mvs-split-container {    margin-top: 0px; padding-top: 0px;}
}