.bg-gradient-primary {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
}
.km-prose {
    line-height: 1.75;
    font-size: 1.05rem;
    color: #222;
}
.km-prose h1, .km-prose h2, .km-prose h3 {
    margin-top: 1.2em;
    margin-bottom: .6em;
    font-weight: 700;
}
.km-prose p {
    margin: 0.6em 0;
}
.km-divider {
    height: 2px;
    background: linear-gradient(to right, transparent, rgba(0,0,0,.1), transparent);
}
.km-avatar {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: linear-gradient(180deg, #e0e7ff, #ede9fe);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; color: #3730a3;
    flex-shrink: 0;
}
.km-input {
    border-radius: 12px;
    border: 1px solid #d1d5db;
}
.shadow-sm-sm {
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}