.track-thread {
    margin-top: 24px;
    max-height: 500px;
    overflow-y: auto;
    padding: 4px;
}

.track-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    background: #0A1F44;
    color: #FAF6EC;
    border-radius: 10px;
    margin-bottom: 12px;
    font-size: 13px;
}
.track-header .mono { color: #C9A227; font-family: ui-monospace, monospace; }
.track-status { font-size: 12px; }

.track-msg {
    padding: 12px 14px;
    border-radius: 10px;
    margin-bottom: 8px;
    font-size: 13px;
    line-height: 1.6;
}
.track-msg-out {
    background: #FFF;
    border: 1px solid #E0D5B7;
    border-left: 4px solid #C9A227;
}
.track-msg-in {
    background: #e7edf8;
    border: 1px solid #c2d0e8;
    border-left: 4px solid #0A1F44;
}

.track-msg-meta {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: #666;
    margin-bottom: 6px;
}
.track-msg-meta strong { color: #0A1F44; }
.track-msg-subject {
    font-weight: 600;
    color: #0A1F44;
    margin-bottom: 6px;
}
.track-msg-body {
    color: #2E2E2E;
    word-wrap: break-word;
}