/* =========================================
   INTERFAZ DEL ASISTENTE IA
========================================= */

.ia-pagina {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
}


/* =========================================
   CONTENEDOR
========================================= */

.ia-contenedor {
    width: min(100%, 850px);
    height: min(90vh, 780px);

    display: flex;
    flex-direction: column;

    background: var(--hueso);

    border: var(--borde-fuerte);
    border-radius: var(--radio-xl);

    overflow: hidden;

    box-shadow: var(--elev-2);
}


/* =========================================
   ENCABEZADO
========================================= */

.ia-encabezado {
    min-height: 78px;

    display: flex;
    align-items: center;

    padding: 0 24px;

    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}


/* BOTÓN VOLVER */

.ia-volver {
    width: 40px;
    height: 40px;

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

    margin-right: 14px;

    border-radius: 50%;

    color: inherit;
    text-decoration: none;

    font-size: 24px;

    transition:
        background 0.2s ease,
        transform 0.2s ease;
}

.ia-volver:hover {
    background: rgba(0, 0, 0, 0.06);
    transform: translateX(-2px);
}


/* IDENTIDAD */

.ia-identidad {
    display: flex;
    align-items: center;
    gap: 12px;

    flex: 1;
}


.ia-logo {
    width: 42px;
    height: 42px;

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

    border-radius: 50%;

    background: rgb(28, 26, 22);
    color: white;

    font-size: 20px;
}


.ia-identidad h1 {
    margin: 0;

    font-size: 18px;
    font-weight: 700;
}


.ia-identidad p {
    margin: 3px 0 0;

    font-size: 13px;

    opacity: 0.55;
}


/* ESTADO */

.ia-estado {
    display: flex;
    align-items: center;
    gap: 7px;

    font-size: 12px;

    opacity: 0.65;
}


.ia-punto {
    width: 7px;
    height: 7px;

    border-radius: 50%;

    background: var(--esmeralda);
}


/* =========================================
   CHAT
========================================= */

.ia-chat {
    flex: 1;

    overflow-y: auto;

    padding: 30px;

    box-sizing: border-box;
}


/* =========================================
   BIENVENIDA
========================================= */

.ia-bienvenida {
    max-width: 560px;

    margin: 45px auto;

    text-align: center;
}


.ia-bienvenida-icono {
    width: 64px;
    height: 64px;

    margin: 0 auto 18px;

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

    border-radius: 50%;

    background: rgba(0, 0, 0, 0.06);

    font-size: 28px;
}


.ia-bienvenida h2 {
    margin: 0;

    font-size: 28px;
}


.ia-bienvenida p {
    max-width: 480px;

    margin: 12px auto 25px;

    line-height: 1.6;

    font-size: 15px;

    opacity: 0.65;
}


/* =========================================
   SUGERENCIAS
========================================= */

.ia-sugerencias {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}


.ia-sugerencias button {
    padding: 10px 15px;

    border: var(--borde-fuerte);
    border-radius: var(--radio-lg);

    background: transparent;

    color: inherit;

    font-family: inherit;
    font-size: 13px;

    cursor: pointer;

    transition:
        background 0.2s ease,
        transform 0.2s ease;
}


.ia-sugerencias button:hover {
    background: rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}


/* =========================================
   MENSAJES
========================================= */

.ia-mensaje {
    width: fit-content;
    max-width: 75%;

    margin-bottom: 12px;

    padding: 12px 16px;

    border-radius: var(--radio-lg);

    line-height: 1.5;

    font-size: 14px;
}


.ia-mensaje-asistente {
    margin-right: auto;

    background: rgba(0, 0, 0, 0.06);

    border-bottom-left-radius: 5px;
}


.ia-mensaje-usuario {
    margin-left: auto;

    background: rgb(28, 26, 22);
    color: white;

    border-bottom-right-radius: 5px;
}


/* =========================================
   CAJA DE ESCRITURA
========================================= */

.ia-form {
    display: flex;
    align-items: center;
    gap: 10px;

    margin: 0 20px;
    padding: 10px;

    border: var(--borde-fuerte);
    border-radius: var(--radio-lg);

    background: white;
}


.ia-form input {
    flex: 1;

    min-width: 0;

    padding: 10px 12px;

    border: none;
    outline: none;

    background: transparent;

    color: inherit;

    font-family: inherit;
    font-size: 14px;
}


.ia-form input::placeholder {
    opacity: 0.45;
}


.ia-form button {
    width: 42px;
    height: 42px;

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

    flex-shrink: 0;

    border: none;
    border-radius: 50%;

    background: rgb(28, 26, 22);
    color: white;

    font-size: 18px;

    cursor: pointer;

    transition:
        transform 0.2s ease,
        opacity 0.2s ease;
}


.ia-form button:hover {
    transform: scale(1.08);
}


.ia-form button:active {
    transform: scale(0.94);
}


/* =========================================
   AVISO
========================================= */

.ia-aviso {
    margin: 10px 20px 15px;

    text-align: center;

    font-size: 11px;

    opacity: 0.4;
}


/* =========================================
   TARJETAS DE PRODUCTO
========================================= */

.ia-productos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;

    margin-top: 14px;
    padding-top: 14px;

    border-top: 1px solid rgba(0, 0, 0, 0.08);
}


.ia-producto {
    display: flex;
    flex-direction: column;
    gap: 3px;

    padding: 8px;

    border: var(--borde-fuerte);
    border-radius: var(--radio-lg);

    background: white;
    color: inherit;
    text-decoration: none;

    box-shadow: var(--elev-1);

    transition:
        transform var(--transicion-rapida),
        box-shadow var(--transicion-rapida);
}


.ia-producto:hover {
    transform: translateY(-3px);
    box-shadow: var(--elev-2);
}


.ia-producto-img {
    position: relative;
    display: block;

    aspect-ratio: 3 / 4;

    overflow: hidden;
    border-radius: var(--radio-md);
    background: rgba(0, 0, 0, 0.05);
}


.ia-producto-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


.ia-producto-agotado {
    position: absolute;
    left: 5px;
    bottom: 5px;

    padding: 2px 6px;
    border-radius: var(--radio-sm);

    background: rgba(28, 26, 22, 0.82);
    color: white;

    font-size: 9.5px;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}


.ia-producto-nombre {
    margin-top: 5px;

    font-size: 13px;
    font-weight: 600;
    line-height: 1.25;
}


.ia-producto-meta {
    font-size: 11px;
    opacity: 0.5;
}


.ia-producto-precio {
    font-size: 13.5px;
    color: var(--esmeralda-texto);
}


/* =========================================
   SEGUIMIENTOS SUGERIDOS
========================================= */

.ia-seguimientos {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;

    margin: 4px 0 16px;
}


.ia-seguimientos button {
    padding: 7px 13px;

    border: var(--borde-fuerte);
    border-radius: var(--radio-lg);

    background: transparent;
    color: inherit;

    font-family: inherit;
    font-size: 12.5px;

    cursor: pointer;

    transition:
        background 0.2s ease,
        transform 0.2s ease;
}


.ia-seguimientos button:hover {
    background: rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}


/* =========================================
   INDICADOR DE ESCRITURA
========================================= */

.ia-escribiendo {
    display: flex;
    align-items: center;
    gap: 5px;

    width: fit-content;
    padding: 14px 16px;
}


.ia-escribiendo span {
    width: 7px;
    height: 7px;

    border-radius: 50%;

    background: rgba(0, 0, 0, 0.4);

    animation: rebotar 1.2s infinite ease-in-out;
}


.ia-escribiendo span:nth-child(2) { animation-delay: 0.16s; }
.ia-escribiendo span:nth-child(3) { animation-delay: 0.32s; }


@keyframes rebotar {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30%           { transform: translateY(-5px); opacity: 1; }
}


@media (prefers-reduced-motion: reduce) {
    .ia-escribiendo span { animation: none; opacity: 0.6; }
    .ia-producto:hover,
    .ia-seguimientos button:hover { transform: none; }
}


/* =========================================
   MÓVIL
========================================= */

@media (max-width: 600px) {

    .ia-pagina {
        padding: 0;
    }

    .ia-contenedor {
        width: 100%;
        height: 100vh;

        border-radius: 0;
    }

    .ia-encabezado {
        padding: 0 15px;
    }

    .ia-chat {
        padding: 20px 15px;
    }

    .ia-bienvenida {
        margin: 30px auto;
    }

    .ia-bienvenida h2 {
        font-size: 24px;
    }

    .ia-sugerencias {
        flex-direction: column;
    }

    .ia-sugerencias button {
        width: 100%;
    }

    .ia-mensaje {
        max-width: 85%;
    }

    .ia-productos {
        grid-template-columns: repeat(2, 1fr);
    }

    .ia-seguimientos button {
        width: auto;
    }

}