/**
 * Telemetria Network Viewer - Frontend CSS
 * Responzívne štýly pre zobrazenie schém na webe
 * 
 * @version 1.0.0
 */

/* Container */
.telemetria-network-viewer-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 20px;
    margin: 20px 0;
}

/* Header */
.viewer-header {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e0e0e0;
}

/* Header ako footer (dolu pod schémou) */
.viewer-footer {
    margin-bottom: 0;
    margin-top: 20px;
    padding-bottom: 0;
    padding-top: 15px;
    border-bottom: none;
    border-top: 2px solid #e0e0e0;
}

.viewer-title {
    margin: 0 0 10px 0;
    font-size: 24px;
    font-weight: 600;
    color: #333;
    display: flex;
    align-items: center;
    gap: 10px;
}

.title-icon {
    font-size: 28px;
}

.viewer-meta {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
    font-size: 14px;
    color: #666;
}

.last-update {
    display: flex;
    align-items: center;
    gap: 5px;
}

#last-update-time {
    font-weight: 600;
    color: #2196F3;
}

.auto-refresh-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: #e3f2fd;
    border-radius: 12px;
    font-size: 12px;
    color: #1976D2;
}

.refresh-dot {
    width: 8px;
    height: 8px;
    background: #4CAF50;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

/* Canvas */
.network-canvas-viewer {
    position: relative;
    background: linear-gradient(to bottom, #f5f5f5 0%, #ffffff 100%);
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    overflow: visible !important; /* Umožní vidieť všetky bloky */
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
    min-height: 400px; /* Minimálna výška */
    padding: 20px; /* Priestor okolo blokov */
}

/* Loading overlay */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    gap: 15px;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #e0e0e0;
    border-top-color: #2196F3;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay p {
    margin: 0;
    font-size: 16px;
    color: #666;
}

/* Error */
.telemetria-error,
.error-message {
    background: #ffebee;
    border: 2px solid #f44336;
    border-radius: 6px;
    padding: 20px;
    text-align: center;
    color: #c62828;
}

.error-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.error-message h3 {
    margin: 10px 0;
    color: #c62828;
}

/* Bloky - READ ONLY verzia */
.viewer-block {
    position: absolute;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    padding: 12px;
    min-width: 280px;
    max-width: 350px;
    transition: all 0.3s ease;
    cursor: default; /* Nie pointer - read only */
    user-select: none; /* Zakázať výber textu */
    -webkit-user-drag: none; /* Zakázať drag v Safari */
    /* DÔLEŽITÉ: Zabráni overflow pri hover */
    will-change: transform;
    transform: translateZ(0); /* Vytvorí nový stacking context */
}

.viewer-block:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 10;
}

/* Block header */
.block-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 8px;
    margin-bottom: 8px;
    border-bottom: 2px solid #e0e0e0;
}

.block-icon {
    font-size: 20px;
    line-height: 1;
}

.block-title {
    font-weight: 600;
    font-size: 14px;
    color: #333;
    flex: 1;
}

/* Device info */
.device-info {
    font-size: 12px;
    line-height: 1.6;
}

.device-data {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.device-name {
    font-size: 13px;
    margin-bottom: 6px;
    padding-bottom: 4px;
    border-bottom: 1px solid #e0e0e0;
}

.data-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    padding: 4px 0;
    line-height: 1.6;
}

.data-item strong {
    font-weight: 600;
    color: #2196F3;
    font-size: 15px;
}

.data-item::before {
    font-size: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.last-update {
    font-size: 10px;
    color: #999;
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid #f0f0f0;
    text-align: right;
}

.loading-data,
.no-data,
.error-data {
    text-align: center;
    padding: 8px;
    font-size: 11px;
    color: #999;
    font-style: italic;
}

.error-data {
    color: #f44336;
}

/* Tlačidlá dennej tabuľky a grafu */
.show-daily-table-btn,
.show-daily-graph-btn {
    transition: all 0.3s ease;
}

.show-daily-table-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.6) !important;
}

.show-daily-graph-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(17, 153, 142, 0.6) !important;
}

.show-daily-table-btn:active,
.show-daily-graph-btn:active {
    transform: translateY(0);
}

/* Bloky s pripojeným zariadením */
.viewer-block.has-device {
    border: 2px solid #4caf50;
    background: linear-gradient(135deg, #ffffff 0%, #e8f5e9 100%);
}

.viewer-block.has-device:hover {
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

/* Typy blokov - farebné zvýraznenie */
.viewer-block.vodomer {
    border-left: 4px solid #2196F3;
}

.viewer-block.rozvazdac {
    border-left: 4px solid #00BCD4;
}

.viewer-block.ventil {
    border-left: 4px solid #FF9800;
}

.viewer-block.budova {
    border-left: 4px solid #9C27B0;
}

.viewer-block.meranie {
    border-left: 4px solid #4CAF50;
}

/* ========================================
   RÚRY - Frontend viewer (jednoduchý štýl)
   ======================================== */

/* jsPlumb endpointy - READ ONLY */
.jtk-endpoint {
    cursor: default !important;
    z-index: 100;
}

.jtk-connector {
    cursor: default !important;
    z-index: 50;
}

.jtk-connector path {
    /* Pevná modrá farba, hrubá rúra */
    stroke: #4A90E2 !important;
    stroke-width: 12px !important;
    pointer-events: none !important; /* Zakázať interakciu */
}

.jtk-connector {
    pointer-events: none !important; /* Zakázať interakciu na celom connectore */
}

.jtk-endpoint {
    pointer-events: none !important; /* Zakázať interakciu na endpointoch */
}

/* Overlay arrow */
.jtk-overlay {
    z-index: 60;
}

/* Legend */
.viewer-legend {
    margin-top: 20px;
    padding: 15px;
    background: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
}

.viewer-legend h4 {
    margin: 0 0 12px 0;
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.legend-items {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #666;
}

.legend-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 18px;
    background: #fff;
    border: 2px solid #e0e0e0;
}

.legend-icon.vodomer {
    border-color: #2196F3;
}

.legend-icon.rozvazdac {
    border-color: #00BCD4;
}

.legend-icon.ventil {
    border-color: #FF9800;
}

.legend-icon.budova {
    border-color: #9C27B0;
}

.legend-icon.meranie {
    border-color: #4CAF50;
}

.legend-endpoint {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid;
}

.legend-endpoint.input {
    background: #4CAF50;
    border-color: #388E3C;
}

.legend-endpoint.output {
    background: #FF9800;
    border-color: #F57C00;
}

/* Responzívnosť */
@media (max-width: 768px) {
    .telemetria-network-viewer-container {
        padding: 15px;
    }
    
    .viewer-title {
        font-size: 20px;
    }
    
    .viewer-meta {
        font-size: 12px;
    }
    
    .viewer-block {
        min-width: 150px;
        max-width: 200px;
    }
    
    .block-title {
        font-size: 12px;
    }
    
    .data-item {
        font-size: 11px;
    }
    
    .legend-items {
        gap: 10px;
    }
    
    .legend-item {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .telemetria-network-viewer-container {
        padding: 10px;
    }
    
    .viewer-title {
        font-size: 18px;
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .viewer-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .viewer-block {
        min-width: 140px;
        max-width: 180px;
        padding: 10px;
    }
    
    .network-canvas-viewer {
        min-height: 400px !important;
    }
}

/* Print štýly */
@media print {
    .auto-refresh-indicator {
        display: none;
    }
    
    .viewer-block {
        box-shadow: 0 1px 3px rgba(0,0,0,0.2) !important;
    }
    
    .network-canvas-viewer {
        border: 1px solid #999;
    }
}