#cba-chat-widget {
    position: fixed;
    bottom: var(--cba-bottom, 100px);
    z-index: 999999;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
#cba-chat-widget.cba-position-bottom-right { right: 10px; }
#cba-chat-widget.cba-position-bottom-left { left: 20px; }

#cba-toggle-btn {
    cursor: pointer !important;
    overflow: visible !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex-shrink: 0 !important;
    width: 62px !important;
    height: 62px !important;
    max-width: 62px !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 50px !important;
    border: none !important;
    background: radial-gradient(circle at 50% 42%, #171a3d 0%, #0a0b1f 75%) !important;
    color: #fff !important;
    font-size: 24px !important;
    box-shadow: 0 4px 14px rgba(0,0,0,0.35) !important;
    animation: cba-glow-pulse 3.2s ease-in-out infinite !important;
    transition: width .3s ease, max-width .3s ease, transform .25s ease !important;
    white-space: nowrap !important;
}
#cba-toggle-btn:hover {
    width: 236px !important;
    max-width: 236px !important;
    transform: scale(1.04) !important;
    animation-duration: 1.6s !important;
}
#cba-toggle-btn:hover .cba-toggle-label { max-width: 300px !important; overflow: visible !important; }
#cba-toggle-btn:hover .cba-toggle-label p { opacity: 1 !important; margin-left: 10px !important; }

#cba-toggle-btn span.cba-icon-chat {
    flex-shrink: 0 !important;
    line-height: 1 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

/* Contenedor fijo del icono: el logo y las partículas comparten exactamente
   el mismo centro geométrico del botón circular. */
.cba-icon-chat-wrap {
    position: relative;
    display: block;
    width: 62px;
    height: 62px;
    flex: 0 0 62px;
    overflow: visible;
    box-sizing: border-box;
}

/* Capa del logo. Se mantiene debajo de las partículas y siempre dentro
   del círculo. El posicionamiento absoluto evita cualquier desplazamiento
   provocado por flexbox, padding o por el contenido de la imagen. */
.cba-icon-clip {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    z-index: 1;
}

/* Partículas independientes: cada una se mueve y titila por su cuenta,
   igual que el "polvo cósmico" del logo, pero ahora animado con código. */
.cba-icon-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 3;
}
.cba-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #8fe0ff;
    box-shadow: 0 0 3px 1px rgba(143,224,255,.8);
    opacity: .7;
    animation-name: cba-particle-drift, cba-particle-twinkle;
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
    animation-play-state: running !important;
    will-change: transform, opacity;
}

#cba-toggle-btn img.cba-icon-chat {
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    width: 86% !important;
    height: 86% !important;
    max-width: none !important;
    max-height: none !important;
    margin: 0 !important;
    padding: 0 !important;
    object-fit: contain !important;
    object-position: center center !important;
    border-radius: 50%;
    box-sizing: border-box;
    flex-shrink: 0;
    z-index: 1;
    display: block;
    transform: translate(-50%, -50%);
    transform-origin: center center;
    transition: opacity .4s ease, transform .4s ease, filter .4s ease;
}

.cba-icon-chat-wrap img.cba-icon-chat {
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
}

.cba-icon-chat-wrap .cba-icon-idle {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    animation: cba-breathe 3.4s ease-in-out infinite;
}

.cba-icon-chat-wrap .cba-icon-hover {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.04);
}

#cba-toggle-btn:hover .cba-icon-chat-wrap .cba-icon-idle {
    opacity: 0;
    animation-play-state: paused;
    transform: translate(-50%, -50%) scale(1);
}

#cba-toggle-btn:hover .cba-icon-chat-wrap .cba-icon-hover {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    animation: cba-net-glow 2.6s ease-in-out infinite;
}

/* Overlay de red: puntos y líneas alrededor del ícono, visibles solo en hover. */
.cba-icon-network {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 70px;
    height: 70px;
    margin: -35px 0 0 -35px;
    z-index: 2;
    pointer-events: none;
    opacity: 0;
    transform: scale(.9);
    transition: opacity .35s ease, transform .35s ease;
}
.cba-icon-network svg { width: 100%; height: 100%; overflow: visible; }

#cba-toggle-btn:hover .cba-icon-network {
    opacity: 1;
    transform: scale(1);
}

.cba-net-line {
    stroke: #8fe0ff;
    stroke-width: 0.6;
    opacity: .18;
    animation: cba-net-line-pulse 3.2s ease-in-out infinite;
    animation-delay: calc(var(--d, 0) * .35s);
}

.cba-net-node {
    fill: #8fe0ff;
    filter: drop-shadow(0 0 2px rgba(143,224,255,.9));
    opacity: .5;
    transform-box: fill-box;
    transform-origin: center;
    animation: cba-net-node-pulse 2.4s ease-in-out infinite;
    animation-delay: calc(var(--d, 0) * .3s);
}

@keyframes cba-net-line-pulse {
    0%, 100% { opacity: .12; }
    50%      { opacity: .55; }
}

@keyframes cba-net-node-pulse {
    0%, 100% { opacity: .4; transform: scale(1); }
    50%      { opacity: 1;  transform: scale(1.35); }
}

@keyframes cba-net-glow {
    0%, 100% { filter: brightness(1) drop-shadow(0 0 4px rgba(143,224,255,.5)); }
    50%      { filter: brightness(1.15) drop-shadow(0 0 9px rgba(143,224,255,.8)); }
}

/* Si no hay ícono de hover configurado, el logo se realza sin cambiar
   su centro: el translate(-50%, -50%) siempre se conserva. */
#cba-toggle-btn:hover .cba-icon-chat-wrap .cba-icon-idle:only-child {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.08);
    filter: brightness(1.25) saturate(1.15);
}

/* Al pasar el cursor, las partículas se avivan: titilan más rápido y se abren un poco */
#cba-toggle-btn:hover .cba-particle {
    animation-duration: 1.6s, 1s;
}

/* Posición, alcance de movimiento y ritmo individual de cada partícula.
   Se generan con nth-child para que cada una tenga vida propia sin necesitar JS. */
.cba-particle:nth-child(1)  { top: 4%;  left: 18%; --cba-dx: 8px;  --cba-dy: -7px; animation-duration: 5.2s, 2.1s; animation-delay: 0s, .1s; }
.cba-particle:nth-child(2)  { top: 10%; left: 78%; --cba-dx: -9px; --cba-dy: 7px;  animation-duration: 4.4s, 2.6s; animation-delay: .6s, .4s; }
.cba-particle:nth-child(3)  { top: 22%; left: 4%;  --cba-dx: 7px;  --cba-dy: 9px;  animation-duration: 6s,   3.1s; animation-delay: 1.1s, .9s; }
.cba-particle:nth-child(4)  { top: 30%; left: 92%; --cba-dx: -8px; --cba-dy: -8px; animation-duration: 5.6s, 2.3s; animation-delay: .3s, 1.2s; }
.cba-particle:nth-child(5)  { top: 46%; left: -4%; --cba-dx: 8px;  --cba-dy: -9px; animation-duration: 4.8s, 2.8s; animation-delay: .9s, .2s; }
.cba-particle:nth-child(6)  { top: 50%; left: 96%; --cba-dx: -9px; --cba-dy: 7px;  animation-duration: 5.4s, 2.4s; animation-delay: .2s, .7s; }
.cba-particle:nth-child(7)  { top: 68%; left: 0%;  --cba-dx: 8px;  --cba-dy: 8px;  animation-duration: 6.2s, 3.4s; animation-delay: 1.4s, .5s; }
.cba-particle:nth-child(8)  { top: 76%; left: 90%; --cba-dx: -8px; --cba-dy: -9px; animation-duration: 4.6s, 2s;   animation-delay: .5s, 1.5s; }
.cba-particle:nth-child(9)  { top: 88%; left: 24%; --cba-dx: 9px;  --cba-dy: -7px; animation-duration: 5.8s, 2.7s; animation-delay: .8s, .3s; }
.cba-particle:nth-child(10) { top: 92%; left: 66%; --cba-dx: -7px; --cba-dy: 9px;  animation-duration: 5s,   3.2s; animation-delay: 1.2s, .8s; }
.cba-particle:nth-child(11) { top: 40%; left: 50%; --cba-dx: 6px;  --cba-dy: 6px;  animation-duration: 4.2s, 1.9s; animation-delay: 0s, 1s; }
.cba-particle:nth-child(12) { top: 58%; left: 40%; --cba-dx: -6px; --cba-dy: -6px; animation-duration: 5.6s, 2.5s; animation-delay: .7s, .1s; }

@keyframes cba-breathe {
    0%, 100% { transform: translate(-50%, -50%) scale(1); filter: brightness(1); }
    50% { transform: translate(-50%, -50%) scale(1.04); filter: brightness(1.12); }
}

@keyframes cba-glow-pulse {
    0%, 100% {
        box-shadow: 0 4px 14px rgba(0,0,0,0.35), 0 0 10px rgba(56,214,255,.35), 0 0 0 rgba(139,92,246,0);
    }
    50% {
        box-shadow: 0 6px 22px rgba(0,0,0,0.4), 0 0 22px rgba(56,214,255,.6), 0 0 30px rgba(139,92,246,.45);
    }
}

@keyframes cba-particle-drift {
    0%, 100% { transform: translate3d(0, 0, 0) scale(.8); }
    25% { transform: translate3d(var(--cba-dx, 8px), calc(var(--cba-dy, -8px) * -1), 0) scale(1.15); }
    50% { transform: translate3d(calc(var(--cba-dx, 8px) * -0.75), var(--cba-dy, -8px), 0) scale(.9); }
    75% { transform: translate3d(var(--cba-dx, 8px), var(--cba-dy, -8px), 0) scale(1.2); }
}

@keyframes cba-particle-twinkle {
    0%, 100% { opacity: .25; }
    50% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    #cba-toggle-btn,
    .cba-icon-chat-wrap .cba-icon-idle {
        animation-duration: 8s !important;
    }
    .cba-particle {
        animation-duration: 8s, 4s !important;
    }
    #cba-toggle-btn:hover .cba-icon-chat-wrap .cba-icon-hover {
        animation-duration: 8s !important;
    }
    .cba-net-line,
    .cba-net-node {
        animation-duration: 8s !important;
    }
}

.cba-msg-avatar {
    position: relative;
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    margin-right: 6px;
    align-self: flex-end;
}

.cba-msg-avatar img {
    width: 22px;
    height: 22px;
    object-fit: contain;
    border-radius: 50%;
}

.cba-msg-avatar.cba-avatar-thinking img {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    animation: cba-crossfade 1.6s ease-in-out infinite;
}

.cba-msg-avatar.cba-avatar-thinking img:nth-child(1) { animation-delay: 0s; }
.cba-msg-avatar.cba-avatar-thinking img:nth-child(2) { animation-delay: .8s; }

@keyframes cba-crossfade {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

.cba-toggle-label {
    max-width: 0 !important;
    overflow: hidden !important;
    transition: all .3s ease !important;
    display: block !important;
}
.cba-toggle-label p {
    color: #fff !important;
    text-align: center !important;
    font-family: "Public Sans", inherit !important;
    font-size: 16px !important;
    font-weight: 700 !important;
    line-height: 20px !important;
    min-width: max-content !important;
    white-space: nowrap !important;
    opacity: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    transition: opacity .3s ease !important;
}

#cba-chat-window {
    position: absolute !important;
    bottom: 70px;
    width: 340px !important;
    max-width: 90vw !important;
    height: 460px !important;
    max-height: 70vh !important;
    box-sizing: border-box !important;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.cba-position-bottom-right #cba-chat-window { right: 0; }
.cba-position-bottom-left #cba-chat-window { left: 0; }

#cba-chat-header {
    background: var(--cba-color, #18A299);
    color: #fff;
    padding: 14px 16px;
    font-weight: 600;
    font-size: 15px;
}

#cba-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    background: #f7f8fa;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cba-msg {
    max-width: 80%;
    padding: 9px 12px;
    border-radius: 14px;
    font-size: 14px;
    line-height: 1.4;
    white-space: pre-wrap;
    word-break: break-word;
}
.cba-msg-bot {
    background: #fff;
    border: 1px solid #e5e7eb;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}
.cba-msg-user {
    background: var(--cba-color, #18A299);
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}
.cba-msg-typing {
    background: #fff;
    border: 1px solid #e5e7eb;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    font-style: italic;
    color: #888;
}

/* Cuando el mensaje trae avatar (bot / pensando), el fondo pasa al bubble interno
   y el contenedor solo se encarga del layout (avatar + burbuja). */
.cba-msg.cba-msg-with-avatar {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    background: transparent;
    border: none;
    padding: 0;
    max-width: 90%;
}
.cba-msg.cba-msg-with-avatar .cba-msg-bubble {
    display: inline-block;
    padding: 9px 12px;
    border-radius: 14px;
    border-bottom-left-radius: 4px;
    background: #fff;
    border: 1px solid #e5e7eb;
}
.cba-msg-typing.cba-msg-with-avatar .cba-msg-bubble {
    font-style: italic;
    color: #888;
}
.cba-msg-error {
    background: #fee2e2;
    color: #991b1b;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

#cba-chat-input-area {
    display: flex;
    gap: 8px;
    padding: 10px;
    border-top: 1px solid #eee;
    background: #fff;
}
#cba-chat-input {
    flex: 1;
    resize: none;
    border: 1px solid #ddd;
    border-radius: 20px;
    padding: 9px 14px;
    font-size: 14px;
    font-family: inherit;
    max-height: 90px;
    outline: none;
}
#cba-chat-input:focus { border-color: var(--cba-color, #18A299); }

#cba-send-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: var(--cba-color, #18A299);
    color: #fff;
    cursor: pointer;
    flex-shrink: 0;
}
#cba-send-btn:disabled { opacity: .5; cursor: default; }

/* =========================================================
   RESPONSIVE / MOBILE
   ========================================================= */

/* Tablets and small screens */
@media (max-width: 768px) {
    #cba-chat-widget {
        /* Keep the floating button anchored to the RIGHT on touch devices. */
        left: auto !important;
        right: 10px !important;
        bottom: max(var(--cba-bottom, 20px), env(safe-area-inset-bottom, 0px));
        width: auto;
        box-sizing: border-box;
    }

    #cba-chat-widget.cba-position-bottom-right,
    #cba-chat-widget.cba-position-bottom-left {
        left: auto !important;
        right: 10px !important;
    }

    /* On touch devices the desktop hover expansion is not useful. */
    #cba-toggle-btn:hover {
        width: 62px !important;
        max-width: 62px !important;
        transform: none !important;
    }

    #cba-toggle-btn:hover .cba-toggle-label {
        max-width: 0 !important;
    }

    #cba-toggle-btn:hover .cba-toggle-label p {
        opacity: 0 !important;
        margin-left: 0 !important;
    }

    #cba-chat-window {
        position: fixed !important;
        left: auto !important;
        right: 10px !important;
        top: max(12px, env(safe-area-inset-top, 0px)) !important;
        bottom: calc(78px + max(var(--cba-bottom, 20px), env(safe-area-inset-bottom, 0px))) !important;
        width: min(340px, calc(100vw - 20px)) !important;
        max-width: calc(100vw - 20px) !important;
        height: auto !important;
        max-height: none !important;
        border-radius: 14px;
    }

    #cba-chat-header {
        padding: 13px 14px;
        min-height: 48px;
        box-sizing: border-box;
    }

    #cba-chat-messages {
        min-height: 0;
        padding: 10px;
        gap: 7px;
        -webkit-overflow-scrolling: touch;
    }

    .cba-msg {
        max-width: 86%;
        font-size: 14px;
        line-height: 1.45;
    }

    #cba-chat-input-area {
        padding: 9px;
        gap: 7px;
        padding-bottom: max(9px, env(safe-area-inset-bottom, 0px));
    }

    /* 16px prevents iOS Safari from zooming when the input receives focus. */
    #cba-chat-input {
        min-width: 0;
        font-size: 16px;
        line-height: 20px;
    }

    #cba-send-btn {
        width: 40px;
        height: 40px;
        flex: 0 0 40px;
    }
}

/* Phones */
@media (max-width: 480px) {
    #cba-chat-widget,
    #cba-chat-widget.cba-position-bottom-right,
    #cba-chat-widget.cba-position-bottom-left {
        left: 8px;
        right: 8px;
        bottom: max(var(--cba-bottom, 20px), env(safe-area-inset-bottom, 0px));
    }

    #cba-toggle-btn {
        width: 58px !important;
        height: 58px !important;
        max-width: 58px !important;
        padding: 0 !important;
    }

    #cba-toggle-btn:hover {
        width: 58px !important;
        max-width: 58px !important;
    }

    .cba-icon-chat-wrap {
        width: 58px;
        height: 58px;
        flex-basis: 58px;
        overflow: visible;
    }

    #cba-chat-window {
        bottom: calc(74px + max(var(--cba-bottom, 20px), env(safe-area-inset-bottom, 0px))) !important;
        height: auto !important;
        max-height: none !important;
        border-radius: 12px;
    }

    #cba-chat-header {
        font-size: 14px;
        padding: 12px 13px;
    }

    #cba-chat-messages {
        padding: 9px;
    }

    .cba-msg {
        max-width: 90%;
        padding: 8px 10px;
        font-size: 14px;
    }

    #cba-chat-input-area {
        padding: 8px;
        padding-bottom: max(8px, env(safe-area-inset-bottom, 0px));
    }

    #cba-chat-input {
        padding: 8px 12px;
        max-height: 84px;
    }
}

/* Very small phones / short landscape screens */
@media (max-width: 360px), (max-height: 500px) and (max-width: 768px) {
    #cba-chat-window {
        top: max(8px, env(safe-area-inset-top, 0px)) !important;
        bottom: calc(70px + max(var(--cba-bottom, 20px), env(safe-area-inset-bottom, 0px))) !important;
        height: auto !important;
        max-height: none !important;
        border-radius: 10px;
    }

    #cba-chat-header {
        padding: 10px 12px;
        min-height: 44px;
    }

    #cba-chat-messages {
        padding: 8px;
    }

    #cba-chat-input-area {
        padding: 7px;
    }
}