.ac-popup {
    min-width: 180px;
    font-size: 13px;
    line-height: 1.4;
}
.ac-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}
.ac-callsign {
    font-size: 16px;
    font-weight: 700;
    font-family: monospace;
}
.ac-squawk {
    font-family: monospace;
    font-size: 11px;
    padding: 2px 5px;
    border-radius: 3px;
    background: #e0e0e0;
}
.ac-squawk.squawk-emergency { background: #ff4444; color: #fff; }
.ac-squawk.squawk-radio { background: #ff9800; color: #fff; }
.ac-squawk.squawk-hijack { background: #f44; color: #fff; animation: blink 0.5s infinite; }
@keyframes blink { 50% { opacity: 0.5; } }
.ac-reg {
    font-family: monospace;
    color: #666;
    font-size: 12px;
}
.ac-desc {
    color: #333;
    margin: 4px 0;
}
.ac-operator {
    color: #0066cc;
    font-size: 12px;
}
.ac-route {
    background: #f0f7ff;
    padding: 4px 8px;
    border-radius: 4px;
    margin: 6px 0;
    font-weight: 500;
    text-align: center;
}
.ac-data {
    width: 100%;
    margin: 8px 0;
    border-collapse: collapse;
}
.ac-data td {
    padding: 2px 0;
}
.ac-data td:first-child {
    color: #888;
    width: 70px;
}
.ac-data td:last-child {
    font-family: monospace;
    text-align: right;
}
.ac-vrate {
    font-size: 11px;
    color: #888;
}
.ac-hex {
    font-family: monospace;
    font-size: 10px;
    color: #aaa;
    text-align: right;
    margin-top: 4px;
}