/* Network Pulse Dashboard Styles */
/* Optimized for monitoring displays - dark mode default */

/* ============================================
   CSS Variables - Theme Support
   ============================================ */
:root {
    /* Crosstalk Solutions Brand Colors */
    --ct-blue: #2B3990;
    --ct-orange: #F15A29;
    --ct-grey: #939598;

    /* Light Mode Colors */
    --primary-color: #2B3990;
    --accent-color: #F15A29;
    --background: #f0f2f5;
    --surface: #ffffff;
    --surface-alt: #f8f9fa;
    --text-primary: #1a1a2e;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border-color: #e5e7eb;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Chart colors */
    --chart-download: #3b82f6;
    --chart-upload: #10b981;
}

/* Dark Mode - Default for monitoring displays */
:root[data-theme="dark"] {
    --primary-color: #4B5FBB;
    --accent-color: #F15A29;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-alt: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #334155;
    --success: #22c55e;
    --warning: #eab308;
    --error: #ef4444;
    --info: #60a5fa;

    --chart-download: #60a5fa;
    --chart-upload: #34d399;
}

/* ============================================
   Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 16px;
}

/* ============================================
   Dashboard Container
   ============================================ */
.dashboard-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* ============================================
   Header
   ============================================ */
.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.header-left {
    flex: 1;
}

.header-center {
    flex: 2;
    text-align: center;
}

.header-right {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.back-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--accent-color);
}

.dashboard-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.theme-toggle,
.fullscreen-toggle {
    background: var(--surface-alt);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.2s;
}

.theme-toggle:hover,
.fullscreen-toggle:hover {
    background: var(--border-color);
}

/* ============================================
   Main Dashboard Area
   ============================================ */
.dashboard-main {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ============================================
   Status Cards Row
   ============================================ */
.status-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.status-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.status-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.status-card.status-ok {
    border-left: 4px solid var(--success);
}

.status-card.status-error {
    border-left: 4px solid var(--error);
}

.card-icon {
    font-size: 2rem;
    opacity: 0.9;
}

.card-content {
    flex: 1;
}

.card-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.card-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-detail {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ============================================
   Throughput + AP Row
   ============================================ */
.throughput-ap-row {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1rem;
}

.chart-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
}

.chart-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-hint {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-muted);
    text-transform: none;
    letter-spacing: normal;
}

.chart-toggle {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--accent-color);
    text-transform: none;
    letter-spacing: normal;
    text-decoration: none;
    cursor: pointer;
}

.chart-toggle:hover {
    text-decoration: underline;
}

/* Throughput Card */
.throughput-card {
    display: flex;
    flex-direction: column;
}

.throughput-display {
    display: flex;
    flex-direction: row;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    flex: 1;
}

.throughput-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    min-width: 100px;
}

.throughput-arrow {
    font-size: 1.5rem;
    font-weight: bold;
}

.throughput-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.throughput-item.download .throughput-arrow {
    color: var(--chart-download);
}

.throughput-item.upload .throughput-arrow {
    color: var(--chart-upload);
}

.throughput-item.latency .throughput-arrow {
    color: var(--warning);
}

.throughput-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.throughput-divider {
    width: 1px;
    height: 50px;
    background: var(--border-color);
}

/* ============================================
   AP Status Grid
   ============================================ */
.ap-section {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
}

.ap-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
}

.ap-card {
    background: var(--surface-alt);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    text-align: center;
    position: relative;
    transition: all 0.2s;
}

.ap-card.ap-online {
    border-color: var(--success);
}

.ap-card.ap-offline {
    border-color: var(--error);
    opacity: 0.7;
}

.ap-status-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.ap-status-dot.online {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

.ap-status-dot.offline {
    background: var(--error);
}

.ap-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ap-clients {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-color);
}

.ap-model {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.no-aps {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
}

/* Clickable AP Cards */
.ap-card.clickable {
    cursor: pointer;
}

.ap-card.clickable:hover {
    transform: scale(1.03);
    border-color: var(--accent-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.ap-card.clickable:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* ============================================
   Charts Row
   ============================================ */
.charts-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.chart-container {
    position: relative;
    height: 200px;
}

.chart-container-bar {
    height: 220px;
}

/* ============================================
   Bottom Section (Top Clients & Health)
   ============================================ */
.bottom-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
}

.panel h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Top Clients */
.clients-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.client-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background: var(--surface-alt);
    border-radius: 6px;
}

.client-rank {
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.client-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.client-name {
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.client-details {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.client-bandwidth {
    font-weight: 600;
    color: var(--accent-color);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.client-type {
    font-size: 0.9rem;
}

.no-clients {
    text-align: center;
    color: var(--text-muted);
    padding: 1rem;
}

/* Network Health */
.health-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.health-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background: var(--surface-alt);
    border-radius: 6px;
}

.health-label {
    width: 60px;
    font-weight: 600;
    color: var(--text-secondary);
}

.health-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.health-status.status-ok {
    color: var(--success);
}

.health-status.status-warning {
    color: var(--warning);
}

.health-status.status-error {
    color: var(--error);
}

.health-status.status-unknown {
    color: var(--text-muted);
}

.health-detail {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-left: auto;
}

/* ============================================
   Footer
   ============================================ */
.dashboard-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--surface);
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.footer-left,
.footer-center,
.footer-right {
    flex: 1;
}

.footer-center {
    text-align: center;
    color: var(--text-secondary);
}

.footer-right {
    text-align: right;
}

.separator {
    margin: 0 0.75rem;
    color: var(--border-color);
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.connection-status.connected {
    color: var(--success);
}

.connection-status.disconnected {
    color: var(--error);
}

.version {
    color: var(--text-muted);
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--brand-blue);
    text-decoration: underline;
}

/* ============================================
   Loading & Error States
   ============================================ */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    margin-top: 1rem;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.error-toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--error);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.toast-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.8;
}

.toast-close:hover {
    opacity: 1;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1200px) {
    .status-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .throughput-ap-row {
        grid-template-columns: 1fr;
    }

    .charts-row {
        grid-template-columns: 1fr 1fr;
    }

    .bottom-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .dashboard-header {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.5rem 1rem;
    }

    .header-left,
    .header-right {
        width: 100%;
        justify-content: center;
    }

    .status-cards {
        grid-template-columns: 1fr;
    }

    .charts-row {
        grid-template-columns: 1fr;
    }

    .dashboard-main {
        padding: 0.75rem;
    }

    .ap-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .dashboard-footer {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .footer-left,
    .footer-center,
    .footer-right {
        width: 100%;
        text-align: center;
    }
}

/* ============================================
   Fullscreen Mode
   ============================================ */
:fullscreen .dashboard-header {
    padding: 0.5rem 1rem;
}

:fullscreen .back-link {
    display: none;
}

:fullscreen .dashboard-main {
    padding: 0.75rem;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .dashboard-header,
    .dashboard-footer,
    .theme-toggle,
    .fullscreen-toggle {
        display: none;
    }

    .dashboard-main {
        overflow: visible;
    }
}