/* Variables CSS estilo WhatsApp para fácil personalización */
:root {
    --ds-primary: #075E54;
    --ds-primary-dark: #054c44;
    --ds-accent: #25D366;
    --ds-bg: #E5DDD5;
    --ds-bg-pattern: #ded5c7;
    --ds-text: #111b21;
    --ds-text-light: #ffffff;
    --ds-border: #d1d7db;
    --ds-bubble-user: #DCF8C6;
    --ds-bubble-assistant: #ffffff;
    --ds-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    --ds-radius: 10px;
    --ds-transition: 0.3s ease;
}

#ds-chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999999;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    direction: ltr;
}

/* Botón de toggle (estilo FAB de WhatsApp) */
.ds-chat-btn {
    width: 60px;
    height: 60px;
    background-color: var(--ds-accent);
    color: var(--ds-text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.45);
    transition: transform var(--ds-transition), box-shadow var(--ds-transition);
    position: relative;
}

.ds-chat-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.55);
}

.ds-chat-btn:active {
    transform: scale(0.95);
}

.ds-chat-btn svg {
    width: 28px;
    height: 28px;
}

/* Ícono personalizado (foto de asesor, logo o icono propio) */
.ds-chat-btn-custom {
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    border: 2px solid rgba(255,255,255,0.9);
}

.ds-chat-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background-color: #e53e3e;
    color: white;
    border: 2px solid #fff;
    border-radius: 50%;
    box-sizing: border-box;
    min-width: 20px;
    height: 20px;
    padding: 0 4px;
    font-size: 11px;
    line-height: 1;
    display: none;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}

/* Contenedor principal */
#ds-chat-container {
    display: none;
    width: 380px;
    max-width: 92vw;
    height: 520px;
    max-height: 80vh;
    background-color: var(--ds-bg);
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
    box-shadow: var(--ds-shadow);
    flex-direction: column;
    overflow: hidden;
    animation: dsSlideUp 0.3s ease;
}

.ds-chat-open #ds-chat-container {
    display: flex;
}
.ds-chat-open .ds-chat-btn {
    display: none;
}

/* Animación */
@keyframes dsSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Header estilo WhatsApp: verde oscuro, avatar + nombre del agente */
.ds-chat-header {
    background: var(--ds-primary);
    color: var(--ds-text-light);
    padding: 10px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    user-select: none;
}

.ds-chat-header-left {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.ds-chat-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50% !important;
    background-color: var(--ds-accent);
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    color: var(--ds-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 15px;
    flex-shrink: 0;
    overflow: hidden;
}

.ds-chat-header-info {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
    min-width: 0;
}

.ds-chat-agent-name {
    font-weight: 600;
    font-size: 15px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ds-chat-status {
    font-size: 12px;
    opacity: 0.85;
}

.ds-chat-header-right {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

#ds-chat-whatsapp {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    color: var(--ds-text-light);
    transition: background var(--ds-transition);
}

#ds-chat-whatsapp:hover {
    background: rgba(255,255,255,0.28);
}

.ds-chat-header button {
    background: none;
    border: none;
    color: var(--ds-text-light);
    font-size: 24px;
    cursor: pointer;
    padding: 0 4px;
    opacity: 0.8;
    transition: opacity var(--ds-transition);
    line-height: 1;
}

.ds-chat-header button:hover {
    opacity: 1;
}

/* Body de mensajes: fondo tipo "papel tapiz" de WhatsApp */
.ds-chat-body {
    flex: 1;
    padding: 12px 16px;
    overflow-y: auto;
    background-color: var(--ds-bg);
    background-image:
        radial-gradient(circle at 20% 20%, var(--ds-bg-pattern) 0, transparent 45%),
        radial-gradient(circle at 80% 60%, var(--ds-bg-pattern) 0, transparent 40%);
    scroll-behavior: smooth;
}

.ds-chat-body::-webkit-scrollbar {
    width: 6px;
}

.ds-chat-body::-webkit-scrollbar-track {
    background: transparent;
}

.ds-chat-body::-webkit-scrollbar-thumb {
    background: #b9b2a6;
    border-radius: 3px;
}

.ds-chat-body::-webkit-scrollbar-thumb:hover {
    background: #a19a8d;
}

/* Mensajes individuales: burbujas estilo WhatsApp con "colita" */
.ds-msg {
    margin-bottom: 8px;
    padding: 8px 12px;
    border-radius: var(--ds-radius);
    max-width: 85%;
    font-size: 14px;
    line-height: 1.5;
    word-wrap: break-word;
    animation: dsFadeIn 0.2s ease;
    box-shadow: 0 1px 1px rgba(0,0,0,0.08);
    position: relative;
}

@keyframes dsFadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ds-msg-user {
    background-color: var(--ds-bubble-user);
    color: var(--ds-text);
    margin-left: auto;
    border-bottom-right-radius: 2px;
}

.ds-msg-assistant {
    background-color: var(--ds-bubble-assistant);
    color: var(--ds-text);
    margin-right: auto;
    border-bottom-left-radius: 2px;
}

.ds-msg-assistant a {
    color: var(--ds-primary);
    text-decoration: underline;
    word-break: break-all;
}

.ds-msg-assistant strong {
    font-weight: 700;
}

.ds-msg-loading {
    color: #667781;
    font-style: italic;
}

.ds-msg-loading::after {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-left: 6px;
    border-radius: 50%;
    border: 2px solid #667781;
    border-top-color: transparent;
    animation: dsSpin 0.8s linear infinite;
}

@keyframes dsSpin {
    to {
        transform: rotate(360deg);
    }
}

/* Footer: barra de composición estilo WhatsApp */
.ds-chat-footer {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    background-color: #f0f2f5;
    gap: 8px;
    flex-shrink: 0;
}

.ds-chat-footer input {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: 22px;
    outline: none;
    font-size: 14px;
    transition: box-shadow var(--ds-transition);
    background: #ffffff;
}

.ds-chat-footer input:focus {
    box-shadow: 0 0 0 2px var(--ds-accent);
}

.ds-chat-footer input.ds-input-error {
    box-shadow: 0 0 0 2px #e53e3e;
    animation: dsShake 0.3s ease;
}

@keyframes dsShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.ds-chat-footer button {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    background: var(--ds-accent);
    color: var(--ds-text-light);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--ds-transition), transform var(--ds-transition);
}

.ds-chat-footer button:hover {
    opacity: 0.9;
    transform: scale(1.05);
}

.ds-chat-footer button:active {
    transform: scale(0.95);
}

.ds-chat-footer button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Media Queries para Responsive */
@media (max-width: 480px) {
    #ds-chat-widget {
        bottom: 10px;
        right: 10px;
    }
    
    .ds-chat-btn {
        width: 52px;
        height: 52px;
    }
    
    .ds-chat-btn svg {
        width: 24px;
        height: 24px;
    }
    
    /* Pantalla completa en móvil (como WhatsApp), no una ventana flotante:
       usa dvh (alto de viewport "dinámico") para no saltar cuando aparece
       el teclado; los navegadores que no lo entienden se quedan con vh. */
    .ds-chat-open #ds-chat-container {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        max-width: 100%;
        height: 100vh;
        height: 100dvh;
        max-height: 100vh;
        max-height: 100dvh;
        border-radius: 0;
        z-index: 1000000;
    }
    
    .ds-chat-header {
        padding: 12px 14px;
    }

    .ds-chat-agent-name {
        font-size: 14px;
    }
    
    .ds-chat-body {
        padding: 10px 12px;
    }
    
    .ds-msg {
        font-size: 13px;
        padding: 8px 12px;
        max-width: 90%;
    }
    
    .ds-chat-footer {
        padding: 6px 8px;
    }
    
    .ds-chat-footer input {
        padding: 8px 14px;
        font-size: 13px;
    }
    
    .ds-chat-footer button {
        width: 38px;
        height: 38px;
    }

    /* En móvil, el panel de ajustes baja como una "hoja" desde abajo,
       ancho completo, en vez de un popover pequeño anclado al ícono. */
    .ds-chat-settings-panel {
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        border-radius: 12px 12px 0 0;
        box-sizing: border-box;
        padding-bottom: 20px;
    }
}

/* Modo oscuro (compatible con temas oscuros) */
@media (prefers-color-scheme: dark) {
    #ds-chat-container {
        background: #0b141a;
        border-color: #2d3748;
    }
    
    .ds-chat-body {
        background: #0b141a;
        background-image: none;
    }
    
    .ds-msg-assistant {
        background: #202c33;
        color: #e9edef;
    }
    
    .ds-msg-user {
        background: #005c4b;
        color: #e9edef;
    }

    .ds-msg-assistant a {
        color: #53bdeb;
    }
    
    .ds-chat-footer {
        background: #202c33;
    }
    
    .ds-chat-footer input {
        background: #2a3942;
        color: #e9edef;
    }
}

/* Ícono de ajustes y su panel (días de retención + borrar conversación) */
#ds-chat-settings {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    color: var(--ds-text-light);
    transition: background var(--ds-transition);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

#ds-chat-settings:hover {
    background: rgba(255,255,255,0.28);
}

/* position:fixed a propósito: no depende de qué ancestro esté "posicionado"
   (eso cambia entre escritorio y la vista de pantalla completa en móvil),
   así el panel siempre se ubica respecto a la ventana y nunca queda
   invisible/clip­eado ni detrás de otro elemento. */
.ds-chat-settings-panel {
    position: fixed;
    top: 66px;
    right: 16px;
    z-index: 2000000;
    background: #fff;
    border: 1px solid var(--ds-border);
    border-radius: 8px;
    box-shadow: var(--ds-shadow);
    padding: 12px 14px;
    width: 220px;
    font-size: 13px;
    color: var(--ds-text);
}

.ds-chat-settings-panel p {
    margin: 0 0 10px;
}

.ds-chat-settings-panel button {
    width: 100%;
    padding: 10px;
    background: #fdecea;
    color: #c0392b;
    border: 1px solid #f5c6cb;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    touch-action: manipulation;
}

.ds-chat-settings-panel button:hover {
    background: #f8d7da;
}

/* Slider horizontal de tarjetas de producto (varias en una fila deslizable) */
.ds-product-slider {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding: 2px 2px 10px;
    margin-bottom: 10px;
    scrollbar-width: thin;
}

.ds-product-slider::-webkit-scrollbar {
    height: 5px;
}

.ds-product-slider::-webkit-scrollbar-thumb {
    background: #b9b2a6;
    border-radius: 3px;
}

.ds-product-card {
    display: flex;
    flex-direction: column;
    flex: 0 0 auto;
    width: 148px;
    scroll-snap-align: start;
    background: #ffffff;
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
    overflow: hidden;
    text-decoration: none;
    color: var(--ds-text);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    transition: transform var(--ds-transition), box-shadow var(--ds-transition);
}

.ds-product-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(0,0,0,0.14);
}

.ds-product-card img {
    width: 100%;
    height: 110px;
    object-fit: cover;
    flex-shrink: 0;
    display: block;
}

.ds-product-card-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
    line-height: 1.3;
    min-width: 0;
    padding: 8px 10px 10px;
}

.ds-product-card-name {
    font-weight: 600;
    font-size: 12.5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ds-product-card-price {
    font-size: 12.5px;
    color: var(--ds-primary);
    font-weight: 700;
}

.ds-product-card-cta {
    font-size: 10.5px;
    color: #667781;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

/* Botones de valoración (👍/👎) bajo cada respuesta real del bot */
.ds-feedback-row {
    display: flex;
    gap: 6px;
    margin: -6px 0 12px;
}

.ds-feedback-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    opacity: 0.55;
    padding: 2px 4px;
    border-radius: 4px;
    transition: opacity var(--ds-transition), background var(--ds-transition);
}

.ds-feedback-btn:hover:not(:disabled) {
    opacity: 1;
    background: rgba(0,0,0,0.05);
}

.ds-feedback-btn:disabled {
    cursor: default;
}

.ds-feedback-selected {
    opacity: 1;
}

/* Botones de elección: continuar conversación anterior o empezar una nueva */
.ds-choice-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 4px 0 14px;
    max-width: 85%;
}

.ds-choice-btn {
    padding: 10px 14px;
    border-radius: 20px;
    border: 1px solid var(--ds-primary);
    background: #fff;
    color: var(--ds-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: background var(--ds-transition), color var(--ds-transition);
}

.ds-choice-btn:hover {
    background: var(--ds-primary);
    color: #fff;
}

.ds-choice-btn-secondary {
    border-color: var(--ds-border);
    color: #667781;
}

.ds-choice-btn-secondary:hover {
    background: #f0f2f5;
    color: var(--ds-text);
}

@media (prefers-color-scheme: dark) {
    .ds-chat-settings-panel {
        background: #202c33;
        color: #e9edef;
        border-color: #2d3748;
    }

    .ds-product-card {
        background: #202c33;
        border-color: #2d3748;
        color: #e9edef;
    }

    .ds-choice-btn {
        background: #202c33;
    }
}