/**
 * TutorIA — Estilos do botão flutuante e chat modal.
 *
 * Responsivo para mobile e desktop.
 */

/* =========================================================
   Reset / Base
   ========================================================= */
#tutoria-widget *,
#tutoria-widget *::before,
#tutoria-widget *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* =========================================================
   Botão flutuante (FAB)
   ========================================================= */
.tutoria-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 99999;

    display: flex;
    align-items: center;
    justify-content: center;

    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    cursor: pointer;

    background-color: #0073aa; /* sobrescrito via style inline */
    color: #fff;

    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.tutoria-fab:hover,
.tutoria-fab:focus-visible {
    transform: scale(1.08);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
    outline: 3px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
}

.tutoria-fab:active {
    transform: scale(0.96);
}

.tutoria-fab--hidden {
    opacity: 0;
    pointer-events: none;
}

.tutoria-fab__icon {
    width: 28px;
    height: 28px;
    fill: currentColor;
    object-fit: contain;
}

/* =========================================================
   Modal
   ========================================================= */
.tutoria-modal {
    position: fixed;
    bottom: 90px;
    right: 24px;
    z-index: 99998;

    display: flex;
    flex-direction: column;

    width: 360px;
    max-width: calc(100vw - 32px);
    height: 520px;
    max-height: calc(100vh - 120px);

    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
    overflow: hidden;

    transition: opacity 0.2s ease, transform 0.2s ease;
    transform-origin: bottom right;
}

.tutoria-modal[hidden] {
    display: none;
}

.tutoria-modal--entering {
    animation: tutoria-modal-in 0.2s ease forwards;
}

.tutoria-modal--leaving {
    animation: tutoria-modal-out 0.15s ease forwards;
}

@keyframes tutoria-modal-in {
    from { opacity: 0; transform: scale(0.92) translateY(8px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes tutoria-modal-out {
    from { opacity: 1; transform: scale(1) translateY(0); }
    to   { opacity: 0; transform: scale(0.92) translateY(8px); }
}

/* =========================================================
   Cabeçalho do modal
   ========================================================= */
.tutoria-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background-color: #0073aa; /* sobrescrito via style inline */
    color: #fff;
    flex-shrink: 0;
}

.tutoria-modal__title {
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tutoria-modal__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: #fff;
    cursor: pointer;
    border-radius: 50%;
    flex-shrink: 0;
    transition: background 0.15s ease;
}

.tutoria-modal__close:hover,
.tutoria-modal__close:focus-visible {
    background: rgba(255, 255, 255, 0.2);
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 1px;
}

.tutoria-modal__close svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* =========================================================
   Área de mensagens
   ========================================================= */
.tutoria-modal__messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

/* Scrollbar sutil */
.tutoria-modal__messages::-webkit-scrollbar {
    width: 4px;
}
.tutoria-modal__messages::-webkit-scrollbar-track {
    background: transparent;
}
.tutoria-modal__messages::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 4px;
}

/* =========================================================
   Sugestões iniciais
   ========================================================= */
.tutoria-suggestions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 16px 0;
    text-align: center;
}

.tutoria-suggestions__label {
    font-size: 14px;
    color: #555;
    font-weight: 500;
}

.tutoria-suggestions__btn {
    background: #f0f4f8;
    border: 1px solid #d0d9e3;
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 13px;
    color: #333;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
    text-align: left;
    width: 100%;
    max-width: 280px;
}

.tutoria-suggestions__btn:hover,
.tutoria-suggestions__btn:focus-visible {
    background: #e2eaf2;
    border-color: #a0b4c8;
    outline: none;
}

/* =========================================================
   Bolhas de mensagem
   ========================================================= */
.tutoria-message {
    display: flex;
    flex-direction: column;
    max-width: 85%;
    gap: 4px;
}

.tutoria-message--user {
    align-self: flex-end;
    align-items: flex-end;
}

.tutoria-message--assistant {
    align-self: flex-start;
    align-items: flex-start;
}

.tutoria-message__bubble {
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
    word-break: break-word;
    white-space: pre-wrap;
}

.tutoria-message--user .tutoria-message__bubble {
    background: #0073aa;
    color: #fff;
    border-bottom-right-radius: 4px;
}

.tutoria-message--assistant .tutoria-message__bubble {
    background: #f0f4f8;
    color: #222;
    border-bottom-left-radius: 4px;
}

.tutoria-message--error .tutoria-message__bubble {
    background: #fff0f0;
    color: #c0392b;
    border: 1px solid #f5c6cb;
}

/* Botão Regenerar resposta */
.tutoria-message__regenerate {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: 1px solid #ccc;
    border-radius: 12px;
    padding: 4px 10px;
    font-size: 12px;
    color: #555;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
    margin-top: 2px;
}

.tutoria-message__regenerate:hover,
.tutoria-message__regenerate:focus-visible {
    background: #f0f4f8;
    border-color: #999;
    outline: none;
}

.tutoria-message__regenerate svg {
    width: 13px;
    height: 13px;
    fill: currentColor;
}

/* =========================================================
   Indicador de carregamento (três pontos pulsantes)
   ========================================================= */
.tutoria-loading {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 16px;
    flex-shrink: 0;
}

.tutoria-loading[hidden] {
    display: none;
}

.tutoria-loading__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #aaa;
    animation: tutoria-bounce 1.2s infinite ease-in-out;
}

.tutoria-loading__dot:nth-child(1) { animation-delay: 0s; }
.tutoria-loading__dot:nth-child(2) { animation-delay: 0.2s; }
.tutoria-loading__dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes tutoria-bounce {
    0%, 80%, 100% { transform: scale(0.7); opacity: 0.5; }
    40%            { transform: scale(1);   opacity: 1; }
}

/* =========================================================
   Rodapé / formulário de envio
   ========================================================= */
.tutoria-modal__footer {
    padding: 10px 12px;
    border-top: 1px solid #e8ecf0;
    flex-shrink: 0;
    background: #fff;
}

.tutoria-form {
    display: flex;
    align-items: center;
    gap: 8px;
}

.tutoria-form__input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #d0d9e3;
    border-radius: 24px;
    font-size: 14px;
    color: #222;
    background: #f8fafc;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.tutoria-form__input:focus {
    border-color: #0073aa;
    box-shadow: 0 0 0 3px rgba(0, 115, 170, 0.15);
    background: #fff;
}

.tutoria-form__input::placeholder {
    color: #aaa;
}

.tutoria-form__send {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background-color: #0073aa; /* sobrescrito via style inline */
    color: #fff;
    cursor: pointer;
    flex-shrink: 0;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.tutoria-form__send:hover,
.tutoria-form__send:focus-visible {
    transform: scale(1.08);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    outline: 2px solid rgba(0, 115, 170, 0.4);
    outline-offset: 2px;
}

.tutoria-form__send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.tutoria-form__send svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* =========================================================
   Acessibilidade — screen reader only
   ========================================================= */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* =========================================================
   Responsividade — mobile
   ========================================================= */
@media (max-width: 480px) {
    .tutoria-fab {
        bottom: 16px;
        right: 16px;
        width: 52px;
        height: 52px;
    }

    .tutoria-modal {
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        max-width: 100%;
        height: 85vh;
        max-height: 85vh;
        border-radius: 16px 16px 0 0;
    }
}