/* ==============================================
   MESSAGES SYSTEM
   ============================================== */
.message-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.message-card.unread {
    border-left: 3px solid var(--primary-color);
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.message-header:hover {
    background: var(--bg-surface-2);
}

.message-sender {
    color: var(--text-main);
}

.message-subject {
    color: var(--text-muted);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.message-card .message-content {
    display: none;
    padding: 0 1rem 1rem 1rem;
    border-top: 1px solid var(--border-color);
}

.message-body {
    background: var(--bg-surface-2);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    line-height: 1.6;
    text-align: left;
}