.uniwebus-chat-widget {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 999999;
    font-family: Arial, sans-serif;
}

.uniwebus-chat-button {
    border: 0;
    background: #0f172a;
    color: #fff;
    padding: 14px 18px;
    border-radius: 999px;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0,0,0,.2);
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.uniwebus-chat-button:hover {
    background: #1e293b;
}

.uniwebus-chat-icon {
    font-size: 20px;
}

.uniwebus-chat-box {
    display: none;
    position: absolute;
    right: 0;
    bottom: 66px;
    width: 340px;
    max-width: calc(100vw - 32px);
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 18px 55px rgba(0,0,0,.25);
    border: 1px solid #e5e7eb;
}

.uniwebus-chat-widget.is-open .uniwebus-chat-box {
    display: block;
}

.uniwebus-chat-header {
    background: #0f172a;
    color: #fff;
    padding: 16px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.uniwebus-chat-close {
    background: transparent;
    border: 0;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}

.uniwebus-chat-form {
    padding: 18px;
}

.uniwebus-chat-form label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: #111827;
    margin-bottom: 12px;
}

.uniwebus-chat-form input,
.uniwebus-chat-form textarea {
    width: 100%;
    box-sizing: border-box;
    margin-top: 6px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    padding: 11px 12px;
    font-size: 14px;
    outline: none;
}

.uniwebus-chat-form input:focus,
.uniwebus-chat-form textarea:focus {
    border-color: #0f172a;
}

.uniwebus-chat-submit {
    width: 100%;
    border: 0;
    background: #0f172a;
    color: #fff;
    padding: 13px 16px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 700;
    font-size: 15px;
}

.uniwebus-chat-submit:hover {
    background: #1e293b;
}

.uniwebus-chat-response {
    margin: 12px 0 0;
    font-size: 14px;
    color: #047857;
}

.uniwebus-chat-response.is-error {
    color: #b91c1c;
}

@media (max-width: 480px) {
    .uniwebus-chat-widget {
        right: 16px;
        bottom: 16px;
    }

    .uniwebus-chat-box {
        right: -4px;
        width: calc(100vw - 24px);
    }
}