:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --accent-green: #00a651;
    --accent-yellow: #f39c12;
    --text-primary: #ffffff;
    --text-secondary: #8b949e;
    --success: #3fb950;
    --warning: #d29922;
    --error: #f85149;
    --border: #30363d;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.sat-tooltip {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-primary);
    line-height: 1.5;
    pointer-events: none;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    display: none;
}

.sat-tooltip strong {
    color: var(--accent-green);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.bd-flag {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent-green);
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0, 166, 81, 0.4);
}

.bd-flag .flag-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #ef394e;
}

.title-group h1 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-green);
}

.title-group .subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

.addresses {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.address-badge {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.address-badge:hover {
    border-color: var(--accent-green);
    transform: translateY(-2px);
}

.address-badge .label {
    font-size: 10px;
    text-transform: uppercase;
    color: var(--accent-green);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.address-badge .value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-primary);
    word-break: break-all;
    overflow-wrap: break-word;
}

.time-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 32px;
}

.time-card, .offset-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.time-card h2, .offset-card h2 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.time-display {
    font-family: 'JetBrains Mono', monospace;
    font-size: 56px;
    font-weight: 400;
    color: var(--text-primary);
    letter-spacing: -2px;
}

.time-label {
    color: var(--accent-green);
    font-size: 13px;
    margin-top: 12px;
}

.offset-display {
    font-family: 'JetBrains Mono', monospace;
    font-size: 36px;
    font-weight: 600;
    color: var(--success);
    transition: color 0.3s ease;
}

.offset-label {
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 12px;
}

.offset-display.excellent {
    color: var(--accent-green);
}

.offset-display.good {
    color: var(--success);
}

.offset-display.warning {
    color: var(--warning);
}

.offset-display.error {
    color: var(--error);
}

.time-server-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 32px;
}

.time-server-section h2 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.time-server-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
}

.time-server-item {
    background: var(--bg-primary);
    border-radius: 8px;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    cursor: help;
    position: relative;
}

.time-server-item:hover {
    box-shadow: 0 0 0 1px var(--accent-green);
}

.time-server-item[title]:hover::before {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 11px;
    line-height: 1.4;
    color: var(--text-primary);
    white-space: normal;
    max-width: 280px;
    z-index: 1000;
    margin-bottom: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    pointer-events: none;
}

.time-server-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.time-server-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    color: var(--text-primary);
}

.time-server-value.reference-pps,
.time-server-value.reference-gps {
    color: var(--accent-green);
    font-weight: 600;
}

.gps-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 32px;
    overflow: hidden;
}

.gps-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.gps-header h2 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.gps-status {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--accent-green);
}

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

.gps-main {
    display: flex;
    gap: 16px;
    align-items: stretch;
}

.gps-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
    flex: 1;
    width: 100%;
}

.gps-charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    width: 100%;
}

.chart-card {
    background: var(--bg-primary);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
}

.chart-card:nth-child(3) {
    grid-column: span 2;
}

.chart-card h3 {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    flex-shrink: 0;
}

.sky-plot {
    width: 400px;
    height: 100%;
    min-height: 400px;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border);
    flex-shrink: 0;
}

.sky-container {
    display: flex;
    flex: 0 0 auto;
}

.signal-bars {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 200px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-green) var(--bg-primary);
}

.signal-bars::-webkit-scrollbar {
    width: 4px;
}

.signal-bars::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

.signal-bars::-webkit-scrollbar-thumb {
    background: var(--accent-green);
    border-radius: 2px;
}

.signal-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
}

.signal-bar .prn {
    width: 40px;
    color: var(--text-secondary);
}

.signal-bar .bar-container {
    flex: 1;
    height: 12px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.signal-bar .bar {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.signal-bar .snr {
    width: 45px;
    text-align: right;
    color: var(--text-secondary);
}

.pie-chart {
    width: 140px;
    height: 140px;
    margin: 0 auto;
    display: block;
}

.gnss-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 8px;
}

.gnss-legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    color: var(--text-secondary);
}

.gnss-legend-item .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.elevation-bars {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 80px;
}

.elevation-bar {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.elevation-bar .bar {
    width: 100%;
    background: var(--accent-green);
    border-radius: 2px 2px 0 0;
    transition: height 0.3s ease;
}

.elevation-bar .label {
    font-size: 8px;
    color: var(--text-secondary);
}

.elevation-bar .count {
    font-size: 10px;
    color: var(--text-primary);
}

.satellite {
    cursor: pointer;
}

.satellite-table-container {
    overflow-x: auto;
    max-width: 100%;
    margin-top: 24px;
}

.satellite-table {
    width: 100%;
    border-collapse: collapse;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
}

.satellite-table th {
    text-align: left;
    padding: 12px 16px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

.satellite-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

.satellite-table tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

.satellite-table tr:hover {
    background: rgba(0, 166, 81, 0.1);
}

.used-indicator {
    color: var(--accent-green);
}

.unused-indicator {
    color: var(--text-secondary);
}

footer {
    text-align: center;
    padding: 24px;
    color: var(--text-secondary);
    font-size: 13px;
    border-top: 1px solid var(--border);
}

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--accent-green);
    color: var(--bg-primary);
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

@media (max-width: 1024px) {
    .gps-main {
        flex-direction: row;
        align-items: flex-start;
        flex-wrap: wrap;
        justify-content: center;
    }

    .sky-plot {
        width: 320px;
        height: 320px;
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .title-group h1 {
        font-size: 22px;
    }

    .title-group .subtitle {
        font-size: 12px;
    }

    .bd-flag {
        width: 36px;
        height: 36px;
    }

    .bd-flag .flag-circle {
        width: 18px;
        height: 18px;
    }

    .addresses {
        width: 100%;
        flex-wrap: wrap;
    }

    .address-badge {
        flex: 1 1 calc(50% - 6px);
        min-width: unset;
        padding: 6px 8px;
    }

    .address-badge .label {
        font-size: 9px;
    }

    .address-badge .value {
        font-size: 10px;
        word-break: break-all;
    }

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

    .time-display {
        font-size: 36px;
    }

    .offset-display {
        font-size: 24px;
    }

    .time-server-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .time-server-item {
        padding: 8px 10px;
    }

    .time-server-label {
        font-size: 9px;
    }

    .time-server-value {
        font-size: 12px;
    }

    .gps-main {
        flex-direction: column;
        align-items: center;
    }

    .sky-container {
        width: 100%;
    }

    .sky-plot {
        width: 100%;
        height: auto;
        min-height: unset;
        aspect-ratio: 1;
    }

    .gps-grid {
        grid-template-columns: 1fr;
    }

    .gps-charts {
        grid-template-columns: 1fr;
        width: 100%;
    }

    .container {
        padding: 12px;
    }

    .satellite-table {
    font-size: 12px;
    line-height: 1.4;
    }

    .satellite-table th,
    .satellite-table td {
        padding: 8px 6px;
    }
}