/* =========================
   BOTÃO IA (premium)
=========================*/
.ia-fab {
    position: fixed;
    right: 16px;
    bottom: 220px;
    z-index: 9999999;

    width: 58px;
    height: 58px;
    border-radius: 999px;

    background: radial-gradient(120% 120% at 30% 20%, #5aa3ff 0%, #1b62f4 55%, #1246b6 100%);
    border: 1px solid rgba(255, 255, 255, .18);
    box-shadow: 0 22px 55px rgba(0, 0, 0, .35);

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

    transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.ia-fab:hover {
    transform: translateY(-3px);
    box-shadow: 0 28px 70px rgba(0, 0, 0, .42);
    filter: saturate(1.1);
}

.ia-fab svg {
    width: 26px;
    height: 26px;
    fill: #fff;
}

/* =========================
   MODAL IA (premium “glass”)
=========================*/
.ia-modal {
    position: fixed;
    right: 16px;
    bottom: 16px;
    /* ancorado embaixo (não corta) */
    z-index: 9999999;

    width: min(410px, calc(100vw - 32px));
    height: min(560px, calc(100vh - 32px));
    max-height: calc(100vh - 32px);

    border-radius: 18px;
    overflow: hidden;

    background: rgba(255, 255, 255, .88);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(15, 27, 51, .14);

    box-shadow:
        0 30px 90px rgba(0, 0, 0, .35),
        0 6px 18px rgba(0, 0, 0, .12);

    /* layout interno */
    display: none;
    flex-direction: column;
}

/* Header “caro” */
.ia-modal header {
    padding: 12px 14px;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;

    background: linear-gradient(135deg, #1b62f4 0%, #1246b6 55%, #0b1220 120%);
}

.ia-modal header .sub {
    opacity: .9;
    font: 700 11px/1.2 system-ui, -apple-system, Segoe UI, Roboto, Arial;
    margin-top: 2px;
}

.ia-modal header>div>div:first-child {
    font: 900 14px/1.15 system-ui, -apple-system, Segoe UI, Roboto, Arial;
    letter-spacing: .2px;
}

.ia-modal header button {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, .22);
    background: rgba(255, 255, 255, .12);
    color: #fff;
    cursor: pointer;
    transition: transform .15s ease, background .15s ease;
}

.ia-modal header button:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, .18);
}

/* Corpo com “paper” + grid suave */
.ia-modal .body {
    flex: 1 1 auto;
    min-height: 0;
    padding: 14px;
    overflow: auto;

    background:
        radial-gradient(900px 500px at 20% 0%, rgba(27, 98, 244, .12), transparent 60%),
        radial-gradient(900px 500px at 80% 20%, rgba(79, 209, 197, .12), transparent 55%),
        linear-gradient(180deg, #f7f9ff 0%, #f3f6ff 100%);
}

/* Bubbles premium */
.ia-bubble {
    max-width: 92%;
    border-radius: 16px;
    padding: 10px 12px;
    margin: 0 0 10px 0;

    border: 1px solid rgba(0, 0, 0, .08);
    box-shadow: 0 10px 22px rgba(0, 0, 0, .08);

    font: 650 13px/1.35 system-ui, -apple-system, Segoe UI, Roboto, Arial;
    color: #0b1220;
    background: #fff;
}

.ia-bubble .who {
    font-weight: 900;
    font-size: 12px;
    opacity: .85;
    margin-bottom: 4px;
}

/* Rodapé “caro” */
.ia-modal footer {
    padding: 12px;
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    /* evita cortar em zoom/telas menores */

    background: rgba(255, 255, 255, .92);
    border-top: 1px solid rgba(15, 27, 51, .12);
}

.ia-modal select,
.ia-modal input {
    border: 1px solid rgba(15, 27, 51, .18);
    background: rgba(255, 255, 255, .96);
    border-radius: 14px;

    padding: 11px 12px;
    outline: none;

    font: 800 13px/1.1 system-ui, -apple-system, Segoe UI, Roboto, Arial;
    color: #0b1220;

    box-shadow: 0 10px 22px rgba(0, 0, 0, .06);
}

.ia-modal select {
    width: 140px;
    flex: 0 0 140px;
}

.ia-modal input {
    flex: 1 1 160px;
    min-width: 0;
}

.ia-modal .mic {
    flex: 0 0 46px;

    width: 46px;
    height: 46px;
    flex: 0 0 46px;

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

    background: #0b1220;
    color: #fff;
    border: 0;
    border-radius: 14px;
    cursor: pointer;

    box-shadow: 0 14px 28px rgba(0, 0, 0, .18);
    transition: transform .15s ease, filter .15s ease;
}

.ia-modal .mic:hover {
    transform: translateY(-1px);
    filter: brightness(1.06);
}

.ia-modal .send {
    flex: 0 0 auto;

    border: 0;
    border-radius: 14px;
    padding: 12px 14px;

    background: linear-gradient(180deg, #2f7bff, #1b62f4);
    color: #fff;

    font: 900 13px/1.05 system-ui, -apple-system, Segoe UI, Roboto, Arial;
    cursor: pointer;

    box-shadow: 0 14px 30px rgba(27, 98, 244, .30);
    transition: transform .15s ease, filter .15s ease;
}

.ia-modal .send:hover {
    transform: translateY(-1px);
    filter: saturate(1.06);
}

/* Scrollbar mais elegante */
.ia-modal .body::-webkit-scrollbar {
    width: 10px;
}

.ia-modal .body::-webkit-scrollbar-thumb {
    background: rgba(11, 18, 32, .20);
    border-radius: 999px;
    border: 3px solid rgba(255, 255, 255, .7);
}

.ia-modal .body::-webkit-scrollbar-track {
    background: transparent;
}

/* Tooltip (mantém o que já tínhamos) */
.tooltip-fab::before {
    content: attr(data-tip);
    position: fixed;
    right: 86px;
    top: var(--tip-y, 50%);
    transform: translateY(-50%);
    background: #1b62f4;
    color: #fff;
    padding: 10px 12px;
    border-radius: 14px;
    font-weight: 800;
    font-size: 12px;
    white-space: nowrap;
    box-shadow: 0 14px 30px rgba(0, 0, 0, .28);
    opacity: 0;
    pointer-events: none;
    transition: .15s;
    z-index: 99999999;
}

.tooltip-fab:hover::before {
    opacity: 1;
}

.ia-modal .body {
    height: calc(500px - 62px - 74px);
}

@media (max-width: 420px) {
    .ia-modal {
        right: 10px;
        width: calc(100vw - 20px);
    }

    .ia-fab {
        right: 12px;
    }
}

@media (max-width: 420px) {
    .ia-modal footer {
        gap: 8px;
    }

    .ia-modal select {
        flex: 1 1 100%;
        width: 100%;
    }

    .ia-modal input {
        flex: 1 1 100%;
        width: 100%;
    }

    .ia-modal .mic {
        flex: 0 0 46px;
    }

    .ia-modal .send {
        flex: 1 1 auto;
    }
}

@supports (padding: env(safe-area-inset-bottom)) {
    .ia-modal {
        bottom: calc(16px + env(safe-area-inset-bottom));
    }
}

/* Mensagem de boas-vindas fixa (não some ao enviar) */
.ia-welcome {
    position: sticky;
    top: 10px;
    z-index: 5;
    border: 1px solid rgba(27, 98, 244, .18);
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(8px);
}

/* Bolha do usuário (quando o JS aplicar .me) */
.ia-bubble.me {
    margin-left: auto;
    background: #eaf2ff;
    border-color: rgba(27, 98, 244, .18);
}

.ia-bubble.me .who {
    color: #1246b6;
    opacity: 1;
}

/* Footer: nunca cortar o botão Enviar */
.ia-modal footer {
    flex-wrap: wrap;
    align-items: stretch;
}

/* input sempre ocupa o espaço e não esmaga o enviar */
.ia-modal input {
    flex: 1 1 220px;
    min-width: 200px;
}

/* botão enviar: não pode ser esmagado */
.ia-modal .send {
    flex: 0 0 auto;
    min-width: 110px;
    white-space: nowrap;
}

/* Em telas pequenas/zoom: coloca Enviar embaixo (100% visível) */
@media (max-width: 520px) {
    .ia-modal .send {
        flex: 1 1 100%;
        width: 100%;
    }

    .ia-modal .mic {
        order: 10;
    }

    .ia-modal .send {
        order: 11;
    }
}

/* ===== FIX: footer não pode sair do modal ===== */
.ia-modal {
    box-sizing: border-box;
    padding-bottom: 10px;
    /* respiro interno */
}

.ia-modal footer {
    box-sizing: border-box;
    padding-bottom: 16px;
    /* evita cortar botões */
}

.ia-modal .body {
    min-height: 0;
    /* deixa o flex funcionar */
    overflow: auto;
}

/* Em telas baixas/zoom, reduz um pouco o footer pra caber */
@media (max-height: 700px) {
    .ia-modal footer {
        padding: 10px 12px 14px;
    }

    .ia-modal .mic {
        height: 42px;
        width: 42px;
        flex: 0 0 42px;
        border-radius: 12px;
    }

    .ia-modal .send {
        padding: 11px 12px;
        border-radius: 12px;
    }
}