/* ================================
   PHASE 3: ADVANCED FEATURES STYLES
   ================================ */

/* Progressive Web App Styles */
.pwa-install-banner {
    background: linear-gradient(135deg, #6f42c1, #0d6efd);
    color: white;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(111, 66, 193, 0.3);
    transform: translateY(-20px);
    opacity: 0;
    animation: slideInFade 0.6s ease-out forwards;
}

.pwa-install-banner.show {
    transform: translateY(0);
    opacity: 1;
}

.pwa-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.pwa-feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.pwa-feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    transition: all 0.6s;
    opacity: 0;
}

.pwa-feature-card:hover::before {
    animation: shimmer 1.5s ease-in-out;
}

.pwa-feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* D3.js Visualization Container */
.d3-visualization {
    background: var(--bs-body-bg);
    border-radius: 15px;
    padding: 2rem;
    margin: 1rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.d3-chart-container {
    min-height: 400px;
    position: relative;
}

.d3-tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 10px;
    border-radius: 8px;
    font-size: 12px;
    pointer-events: none;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.d3-tooltip.show {
    opacity: 1;
}

/* Real-time Updates */
.realtime-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--bs-success);
}

.realtime-dot {
    width: 8px;
    height: 8px;
    background: var(--bs-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.realtime-counter {
    background: linear-gradient(45deg, #28a745, #20c997);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
    animation: countUp 0.5s ease-out;
}

/* Mobile-First Responsive Enhancements */
@media (max-width: 768px) {
    .main-content {
        padding: 0.5rem;
    }
    
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        z-index: 1050;
        background: var(--bs-dark);
        width: 280px;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1040;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .sidebar-overlay.show {
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-header {
        display: flex;
        align-items: center;
        padding: 1rem;
        background: var(--bs-dark);
        color: white;
        position: sticky;
        top: 0;
        z-index: 1030;
    }
    
    .mobile-menu-toggle {
        background: none;
        border: none;
        color: white;
        font-size: 1.5rem;
        margin-right: 1rem;
        cursor: pointer;
    }
    
    .d3-visualization {
        padding: 1rem;
        margin: 0.5rem 0;
    }
    
    .pwa-features {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .pwa-feature-card {
        padding: 1rem;
    }
}

/* Advanced Data Visualization Styles */
.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 3px;
}

.chart-controls {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.chart-control {
    background: var(--bs-light);
    border: 1px solid var(--bs-border-color);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.chart-control:hover,
.chart-control.active {
    background: var(--bs-primary);
    color: white;
    border-color: var(--bs-primary);
}

/* Enhanced Loading States */
.loading-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 8px;
}

.loading-skeleton.chart {
    height: 300px;
    margin: 1rem 0;
}

.loading-skeleton.card {
    height: 150px;
    margin-bottom: 1rem;
}

.loading-skeleton.text {
    height: 20px;
    margin-bottom: 0.5rem;
}

.loading-skeleton.text.short {
    width: 60%;
}

/* Performance Optimization Classes */
.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
}

.will-change {
    will-change: transform, opacity;
}

/* Animations */
@keyframes shimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
        opacity: 0;
    }
}

@keyframes slideInFade {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

@keyframes countUp {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Advanced Responsive Grid */
.responsive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

@media (max-width: 768px) {
    .responsive-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin: 1rem 0;
    }
}

/* Enhanced Card Components */
.advanced-card {
    background: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.advanced-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: var(--bs-primary);
}

.advanced-card-header {
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-info));
    color: white;
    padding: 1.5rem;
    position: relative;
}

.advanced-card-body {
    padding: 1.5rem;
}

/* Connection Status Indicators */
.connection-status {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    /* Fixed position to avoid overlapping with profile */
    position: fixed;
    top: 70px !important; /* Move below the navbar */
    right: 20px;
    z-index: 1030;
    padding: 0;
}

.connection-status.connected {
    background: transparent;
}

.connection-status.disconnected {
    background: transparent;
}

.connection-status.connecting {
    background: transparent;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-dot.connected {
    background: var(--bs-success);
    box-shadow: 0 0 5px 1px var(--bs-success);
}

.status-dot.disconnected {
    background: var(--bs-danger);
    box-shadow: 0 0 5px 1px var(--bs-danger);
}

.status-dot.connecting {
    background: var(--bs-warning);
}

/* Mobile adjustments for connection status */
@media (max-width: 768px) {
    .connection-status {
        top: auto !important;
        bottom: 20px;
        right: 20px;
    }
}