/* 토스트 알림 시스템 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    max-width: 400px;
}

.toast {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    margin-bottom: 10px;
    padding: 16px 20px;
    border-left: 4px solid #3498db;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success {
    border-left-color: #27ae60;
}

.toast.error {
    border-left-color: #e74c3c;
}

.toast.warning {
    border-left-color: #f39c12;
}

.toast.info {
    border-left-color: #3498db;
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast.success .toast-icon {
    color: #27ae60;
}

.toast.error .toast-icon {
    color: #e74c3c;
}

.toast.warning .toast-icon {
    color: #f39c12;
}

.toast.info .toast-icon {
    color: #3498db;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
    color: #2c3e50;
}

.toast-message {
    font-size: 13px;
    color: #7f8c8d;
    line-height: 1.4;
}

.toast-close {
    background: none;
    border: none;
    font-size: 18px;
    color: #bdc3c7;
    cursor: pointer;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.toast-close:hover {
    color: #7f8c8d;
}

/* 모바일 최적화 */
@media (max-width: 768px) {
    .toast-container {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .toast {
        margin-bottom: 8px;
        padding: 14px 16px;
    }
    
    .toast-title {
        font-size: 13px;
    }
    
    .toast-message {
        font-size: 12px;
    }
}

/* 로딩 스피너 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    color: #2c3e50;
    font-size: 14px;
    font-weight: 500;
}