.assistance-page {
    display: grid;
    gap: 1rem;
}

.assistance-chat-card {
    display: grid;
    gap: 1rem;
}

.chat-messages {
    min-height: 320px;
    max-height: 62vh;
    overflow-y: auto;
    display: grid;
    gap: 0.8rem;
    padding: 0.8rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--result-bg);
    scroll-behavior: smooth;
}

.chat-bubble {
    max-width: min(92%, 760px);
    border-radius: 14px;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--border);
    display: grid;
    gap: 0.35rem;
    opacity: 0;
    transform: translateY(8px);
    animation: bubbleIn 220ms ease forwards;
}

.chat-bubble p {
    margin: 0;
    line-height: 1.45;
}

.chat-user {
    justify-self: end;
    background: color-mix(in srgb, var(--primary) 15%, var(--card-bg));
}

.chat-ai {
    justify-self: start;
    background: var(--card-bg);
}

.message-time {
    font-size: 0.75rem;
    color: var(--muted);
}

.assistant-disclaimer {
    font-size: 0.82rem;
    color: var(--muted);
    border-top: 1px dashed var(--border);
    padding-top: 0.4rem;
}

.assistant-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.7rem;
}

.assistant-form input {
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text);
    border-radius: 10px;
    padding: 12px 14px;
}

.assistant-form button[disabled] {
    opacity: 0.75;
    cursor: wait;
}

.loading-dots::after {
    content: "";
    display: inline-block;
    width: 1.2em;
    text-align: left;
    animation: dots 1s steps(4, end) infinite;
}

@keyframes dots {
    0% { content: ""; }
    25% { content: "."; }
    50% { content: ".."; }
    75% { content: "..."; }
    100% { content: ""; }
}

@keyframes bubbleIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sr-only {
    position: absolute;
    left: -9999px;
}

@media (max-width: 640px) {
    .assistant-form {
        grid-template-columns: 1fr;
    }
}