body {
    background-color: #f7f7f9;
}

main {
    min-height: calc(100vh - 160px);
}

.card {
    border-radius: 0.75rem;
}

.chat-widget {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 1080;
}

.chat-toggle-btn {
    min-width: 96px;
}

.chat-panel {
    width: min(360px, calc(100vw - 2rem));
    margin-top: 0.75rem;
}

.chat-messages {
    max-height: 320px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: #fbfcff;
}

.chat-bubble {
    max-width: 92%;
    border-radius: 0.75rem;
    padding: 0.5rem 0.75rem;
    line-height: 1.4;
}

.chat-user {
    align-self: flex-end;
    background-color: #0d6efd;
    color: #fff;
}

.chat-assistant {
    align-self: flex-start;
    background-color: #e9ecef;
    color: #1f2a37;
}