/**
 * Placeholder Components CSS
 * Styling for center and right panel placeholders
 */

/* Center Content Placeholder */
.center-placeholder {
    padding: 24px;
    background: linear-gradient(135deg, 
        rgba(15, 23, 42, 0.95) 0%, 
        rgba(30, 41, 59, 0.95) 100%);
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    height: 100%;
    overflow-y: auto;
}

.placeholder-header {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 2px solid rgba(59, 130, 246, 0.3);
}

.placeholder-header h2 {
    font-size: 28px;
    font-weight: 900;
    color: #ffffff;
    margin: 0 0 8px 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
}

.placeholder-header p {
    font-size: 14px;
    color: rgba(148, 163, 184, 0.8);
    margin: 0;
    letter-spacing: 1px;
}

.placeholder-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.placeholder-metric {
    background: rgba(51, 65, 85, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.placeholder-metric:hover {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.placeholder-metric .metric-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.placeholder-metric .metric-value {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.placeholder-metric .metric-label {
    font-size: 12px;
    color: rgba(148, 163, 184, 0.7);
    letter-spacing: 1px;
}

.placeholder-viz {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.viz-placeholder {
    background: rgba(15, 23, 42, 0.8);
    border: 2px dashed rgba(148, 163, 184, 0.3);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.viz-placeholder:hover {
    border-color: rgba(59, 130, 246, 0.5);
    background: rgba(59, 130, 246, 0.05);
}

.viz-placeholder .viz-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.7;
}

.viz-placeholder .viz-text {
    font-size: 16px;
    font-weight: 600;
    color: rgba(148, 163, 184, 0.8);
    letter-spacing: 1px;
}

/* Right Panel Placeholder */
.right-placeholder {
    padding: 20px;
    background: linear-gradient(135deg, 
        rgba(15, 23, 42, 0.95) 0%, 
        rgba(30, 41, 59, 0.95) 100%);
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    height: 100%;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.right-section {
    background: rgba(51, 65, 85, 0.4);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 12px;
    padding: 16px;
}

.right-section h3 {
    font-size: 14px;
    font-weight: 700;
    color: rgba(148, 163, 184, 0.9);
    margin: 0 0 16px 0;
    letter-spacing: 1px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
    padding-bottom: 8px;
}

.status-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: rgba(15, 23, 42, 0.6);
    border-radius: 8px;
    border: 1px solid rgba(148, 163, 184, 0.1);
}

.status-item.active {
    border-color: rgba(34, 197, 94, 0.3);
    background: rgba(34, 197, 94, 0.05);
}

.status-item.warning {
    border-color: rgba(245, 158, 11, 0.3);
    background: rgba(245, 158, 11, 0.05);
}

.status-icon {
    font-size: 12px;
}

.status-text {
    font-size: 12px;
    color: rgba(148, 163, 184, 0.9);
    font-weight: 500;
}

.monitor-list, .alert-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.monitor-item {
    padding: 8px 12px;
    background: rgba(15, 23, 42, 0.6);
    border-radius: 6px;
    font-size: 11px;
    color: rgba(148, 163, 184, 0.8);
    border-left: 3px solid rgba(34, 197, 94, 0.5);
}

.alert-mini {
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
}

.alert-mini.warning {
    background: rgba(245, 158, 11, 0.1);
    color: rgba(245, 158, 11, 0.9);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.alert-mini.info {
    background: rgba(59, 130, 246, 0.1);
    color: rgba(59, 130, 246, 0.9);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.alert-mini.success {
    background: rgba(34, 197, 94, 0.1);
    color: rgba(34, 197, 94, 0.9);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .placeholder-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .placeholder-viz {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .placeholder-metrics {
        grid-template-columns: 1fr;
    }
    
    .center-placeholder,
    .right-placeholder {
        padding: 16px;
    }
}