/* =========================================
   [COMMON] 전역 시스템 모달 디자인
   ========================================= */
.system-modal-overlay {
    position: fixed;
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999999; 
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.system-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.system-modal-content {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    transform: translateY(20px);
    transition: all 0.3s ease;
    margin: 0 auto;
}

.system-modal-overlay.active .system-modal-content {
    transform: translateY(0);
}

.system-modal-title {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 15px;
    color: #0f172a;
}

.system-modal-text {
    font-size: 1.05rem;
    color: #64748b;
    margin-bottom: 30px;
    line-height: 1.6;
}

.system-modal-btns {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.system-modal-btn {
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    flex: 1;
    font-size: 1rem;
    transition: 0.2s;
}

.system-btn-confirm {
    background: #2563eb;
    color: #fff;
}

.system-btn-confirm:hover {
    background: #1d4ed8;
}

.system-btn-cancel {
    background: #f1f5f9;
    color: #64748b;
}

.system-btn-cancel:hover {
    background: #e2e8f0;
}