.chat-ia {
    --chat-ia-primary: #2563eb;
    --chat-ia-border: #d9e1ec;
    --chat-ia-text: #172033;
    --chat-ia-muted: #64748b;
    color: var(--chat-ia-text);
    font-family: var(--chat-ia-font-family, inherit);
    font-size: var(--chat-ia-font-size, 16px);
    width: 100%;
}

.chat-ia * {
    box-sizing: border-box;
}

.chat-ia [hidden] {
    display: none !important;
}

.chat-ia-form {
    align-items: flex-end;
    display: flex;
    gap: 12px;
    max-width: 430px;
    width: 100%;
}

.chat-ia-field {
    flex: 1 1 0;
    min-width: 0;
}

.chat-ia-form .chat-ia-field {
    flex: 0 1 300px;
}

.chat-ia label {
    color: var(--chat-ia-muted);
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
}

.chat-ia input,
.chat-ia textarea {
    background: #fff;
    border: 1px solid var(--chat-ia-border);
    border-radius: var(--chat-ia-field-radius, 8px);
    color: var(--chat-ia-text);
    font: inherit;
    min-height: 44px;
    outline: none;
    padding: 10px 12px;
    width: 100%;
}

.chat-ia textarea {
    resize: vertical;
}

.chat-ia input:focus,
.chat-ia textarea:focus {
    border-color: var(--chat-ia-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .16);
}

.chat-ia input.chat-ia-field-error,
.chat-ia textarea.chat-ia-field-error {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, .14);
}

.chat-ia-button {
    background: var(--chat-ia-primary);
    border: 1px solid var(--chat-ia-primary);
    border-radius: var(--chat-ia-button-radius, 8px);
    color: var(--chat-ia-button-text, #fff);
    cursor: pointer;
    font: inherit;
    font-weight: 400;
    min-height: 44px;
    padding: 10px 16px;
    transition: opacity .2s ease, transform .2s ease;
    white-space: nowrap;
}

.chat-ia-button:hover {
    background: var(--chat-ia-button-hover, var(--chat-ia-primary));
    border-color: var(--chat-ia-button-hover, var(--chat-ia-primary));
    color: var(--chat-ia-button-text-hover, var(--chat-ia-button-text, #fff));
    opacity: .96;
}

.chat-ia-button:active,
.chat-ia-button:focus {
    background: var(--chat-ia-primary);
    border-color: var(--chat-ia-primary);
    color: var(--chat-ia-button-text, #fff);
    outline: none;
}

.chat-ia-button:disabled {
    cursor: not-allowed;
    opacity: .6;
}

.chat-ia-button-secondary {
    background: var(--chat-ia-secondary);
    border-color: var(--chat-ia-secondary);
    color: var(--chat-ia-secondary-text, #fff);
}

.chat-ia-button-secondary:hover {
    background: var(--chat-ia-secondary-hover, var(--chat-ia-secondary));
    border-color: var(--chat-ia-secondary-hover, var(--chat-ia-secondary));
    color: var(--chat-ia-secondary-text-hover, var(--chat-ia-secondary-text, #fff));
    opacity: .96;
}

.chat-ia-button-secondary:active,
.chat-ia-button-secondary:focus {
    background: var(--chat-ia-secondary);
    border-color: var(--chat-ia-secondary);
    color: var(--chat-ia-secondary-text, #fff);
    outline: none;
}

.chat-ia-chat {
    border: 0;
    border-radius: 0;
    padding: 0;
    width: 100%;
}

.chat-ia-messages {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: none;
    overflow-y: visible;
    padding: 2px 2px 12px;
}

.chat-ia-message {
    border-radius: 8px;
    line-height: 1.5;
    max-width: min(100%, 720px);
    padding: 10px 12px;
    width: min(100%, 720px);
}

.chat-ia-message p {
    margin: 0 0 8px;
}

.chat-ia-message p:last-child {
    margin-bottom: 0;
}

.chat-ia-message-bot {
    align-self: flex-start;
    background: var(--chat-ia-answer-bg, #f4f7fb);
    color: var(--chat-ia-answer-text, var(--chat-ia-text));
}

.chat-ia-message-confirm {
    align-self: flex-start;
    background: #dbeafe;
    border: 1px solid #93c5fd;
    color: #1e3a8a;
    font-weight: 700;
}

.chat-ia-message-error {
    align-self: flex-start;
    background: #fff7ed;
    border: 1px solid #fdba74;
    color: #9a3412;
}

.chat-ia-message-user {
    align-self: flex-start;
    background: var(--chat-ia-question-bg, var(--chat-ia-primary));
    color: var(--chat-ia-question-text, #fff);
}

.chat-ia-loading::after {
    animation: chat-ia-dots 1.2s infinite;
    content: '';
}

.chat-ia-question-form {
    display: grid;
    gap: 10px;
    padding-top: 0;
}

.chat-ia-form-error {
    background: #fff7ed;
    border: 1px solid #fdba74;
    border-radius: 8px;
    color: #9a3412;
    line-height: 1.45;
    margin: 0;
    max-width: 720px;
    padding: 10px 12px;
}

.chat-ia-question-intro {
    background: #f4f7fb;
    border-radius: 8px;
    line-height: 1.5;
    margin: 0;
    max-width: 720px;
    padding: 10px 12px;
}

.chat-ia-inline-fields {
    display: grid;
    gap: 10px;
    grid-template-columns: 1fr 1fr;
}

.chat-ia-question-actions {
    display: flex;
    gap: 10px;
}

.chat-ia-question-actions .chat-ia-button {
    min-width: 160px;
}

.chat-ia-contact {
    border-top: 1px solid var(--chat-ia-border);
    margin-top: 12px;
    max-width: min(100%, 720px);
    padding-top: 12px;
    width: min(100%, 720px);
}

.chat-ia-contact p {
    margin: 0 0 10px;
}

.chat-ia-contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

@keyframes chat-ia-dots {
    0% { content: ''; }
    33% { content: '.'; }
    66% { content: '..'; }
    100% { content: '...'; }
}

@media (max-width: 760px) {
    .chat-ia-form {
        align-items: stretch;
        flex-direction: column;
        gap: 12px;
    }

    .chat-ia-form .chat-ia-field {
        flex: 0 0 auto;
    }

    .chat-ia-button,
    .chat-ia-contact-actions,
    .chat-ia-question-actions .chat-ia-button {
        width: 100%;
    }

    .chat-ia-contact-actions,
    .chat-ia-question-actions,
    .chat-ia-inline-fields {
        flex-direction: column;
        grid-template-columns: 1fr;
    }

    .chat-ia-message {
        max-width: 100%;
        width: 100%;
    }
}