/* AI Chat - estilos mínimos */
.dtk-ai-chat-widget {
    color: #000;
    background: #fff;
    --dtk-send-btn-bg: currentColor;
    --dtk-send-btn-color: #fff;
    --dtk-user-msg-bg: currentColor;
    --dtk-user-msg-color: #fff;
    --dtk-assistant-msg-bg: #f0f0f0;
    --dtk-assistant-msg-color: #000;
    --dtk-input-border: #ddd;
    --dtk-input-focus: currentColor;
}
.dtk-ai-chat-window {
    display: flex;
    flex-direction: column;
    height: min(72vh, 560px);
    min-height: 320px;
    max-height: min(85vh, 720px);
    background: inherit;
    overflow: hidden;
}
.dtk-ai-chat-header {
    display: flex;
    align-items: center;
    padding: 1rem;
    flex-shrink: 0;
}
.dtk-ai-chat-title { display: flex; align-items: center; font-weight: 600; }

/* Varias conversaciones: pestañas horizontales + nuevo hilo */
.dtk-ai-chat-toolbar {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.5rem 0.35rem;
    flex-shrink: 0;
    border-bottom: 1px solid var(--dtk-ai-tab-toolbar-border, rgba(0, 0, 0, 0.08));
    background: var(--dtk-ai-tab-toolbar-bg, transparent);
}
.dtk-ai-chat-tabs-scroll {
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
}
.dtk-ai-chat-tabs-inner {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.25rem;
    padding: 0.1rem 0;
    width: max-content;
}
.dtk-ai-chat-tab-wrap {
    flex: 0 0 auto;
    scroll-snap-align: start;
    display: inline-flex;
    align-items: center;
    max-width: 11rem;
    border: 1px solid var(--dtk-ai-tab-border, rgba(0, 0, 0, 0.12));
    border-radius: 6px;
    background: var(--dtk-ai-tab-bg, #f5f5f5);
    color: var(--dtk-ai-tab-color, inherit);
    overflow: hidden;
}
.dtk-ai-chat-tab-wrap--active {
    background: var(--dtk-ai-tab-active-bg, var(--dtk-send-btn-bg, #000));
    color: var(--dtk-ai-tab-active-color, var(--dtk-send-btn-color, #fff));
    border-color: var(--dtk-ai-tab-active-border, transparent);
}
.dtk-ai-chat-tab {
    flex: 1 1 auto;
    min-width: 0;
    padding: 0.35rem 0.35rem 0.35rem 0.65rem;
    border: none;
    border-radius: 0;
    background: transparent;
    color: inherit;
    font-size: 0.8125rem;
    cursor: pointer;
    line-height: 1.2;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.dtk-ai-chat-tab-close {
    flex-shrink: 0;
    width: 1.65rem;
    height: 100%;
    min-height: 1.75rem;
    padding: 0;
    margin: 0;
    border: none;
    border-left: 1px solid var(--dtk-ai-tab-close-sep, rgba(0, 0, 0, 0.1));
    border-radius: 0;
    background: transparent;
    color: inherit;
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0.75;
}
.dtk-ai-chat-tab-wrap--active .dtk-ai-chat-tab-close {
    border-left-color: var(--dtk-ai-tab-close-sep-active, rgba(255, 255, 255, 0.25));
}
.dtk-ai-chat-tab-close:hover,
.dtk-ai-chat-tab-close:focus-visible {
    opacity: 1;
    background: var(--dtk-ai-tab-close-hover-bg, rgba(0, 0, 0, 0.06));
}
.dtk-ai-chat-tab-wrap--active .dtk-ai-chat-tab-close:hover,
.dtk-ai-chat-tab-wrap--active .dtk-ai-chat-tab-close:focus-visible {
    background: var(--dtk-ai-tab-close-hover-bg-active, rgba(255, 255, 255, 0.15));
}
.dtk-ai-chat-tab-add {
    flex: 0 0 auto;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: 1px solid var(--dtk-ai-tab-add-border, rgba(0, 0, 0, 0.12));
    border-radius: 6px;
    background: var(--dtk-ai-tab-add-bg, #fff);
    color: var(--dtk-ai-tab-add-color, inherit);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    font-weight: 600;
}

.dtk-ai-messages-wrap {
    position: relative;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}
.dtk-ai-messages {
    flex: 1;
    min-height: 0;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Anuncios in-chat (solo DOM; no forman parte del historial API) */
.dtk-ai-chat-ad {
    flex-shrink: 0;
    border: 1px solid var(--dtk-ai-ad-border, rgba(0, 0, 0, 0.1));
    border-radius: 8px;
    background: var(--dtk-ai-ad-bg, #fafafa);
    color: var(--dtk-ai-ad-text, inherit);
    overflow: hidden;
}
.dtk-ai-chat-ad__inner {
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    color: inherit;
}
.dtk-ai-chat-ad__inner > *:first-child {
    margin-top: 0;
}
.dtk-ai-chat-ad__inner > *:last-child {
    margin-bottom: 0;
}
.dtk-ai-messages-fade {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 52px;
    pointer-events: none;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.92) 55%, #fff);
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 1;
}
.dtk-ai-messages-wrap--morebelow .dtk-ai-messages-fade {
    opacity: 1;
}

/* Pantalla de inicio (Reddit-style) */
.dtk-ai-home {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 1rem 1.25rem;
    gap: 1.25rem;
    -webkit-overflow-scrolling: touch;
}
.dtk-ai-chat-widget--home .dtk-ai-home {
    display: flex;
}
.dtk-ai-chat-widget--home .dtk-ai-messages {
    display: none !important;
}
.dtk-ai-chat-widget--home .dtk-ai-messages-fade {
    opacity: 0 !important;
    pointer-events: none;
}
.dtk-ai-chat-widget--home .dtk-ai-chat-header {
    display: none;
}
.dtk-ai-home__wp-block {
    width: 100%;
    max-width: 100%;
    line-height: 1.5;
}
.dtk-ai-home__wp-block .alignwide,
.dtk-ai-home__wp-block .alignfull {
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
}
.dtk-ai-home__wp-block > *:first-child {
    margin-top: 0;
}
.dtk-ai-home__wp-block > *:last-child {
    margin-bottom: 0;
}
.dtk-ai-home__hero {
    text-align: center;
    line-height: 1.45;
}
.dtk-ai-home__hero img {
    max-width: 100%;
    height: auto;
}
.dtk-ai-home__rec-heading {
    margin: 0;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--dtk-ai-home-accent, #1a1a1a);
}
.dtk-ai-home__rec-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.dtk-ai-home-rec {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0.7rem 1rem;
    border: none;
    border-radius: 16px;
    background: var(--dtk-ai-home-rec-bg, #e9eff1);
    font: inherit;
    font-size: 0.9375rem;
    text-align: left;
    cursor: pointer;
    color: inherit;
    transition: filter 0.15s ease, transform 0.1s ease;
}
.dtk-ai-home-rec:hover {
    filter: brightness(0.97);
}
.dtk-ai-home-rec:active {
    transform: scale(0.99);
}
.dtk-ai-chat-widget--home .dtk-ai-input {
    min-height: 5.5rem;
    border-radius: 22px;
    background: var(--dtk-ai-home-rec-bg, #e9eff1);
    border-color: transparent;
    padding-top: 0.85rem;
}
.dtk-ai-chat-widget--home .dtk-ai-input:focus {
    border-color: var(--dtk-ai-home-accent, var(--dtk-input-focus, currentColor));
    outline-offset: 1px;
}

.dtk-ai-message { display: flex; max-width: 80%; }
.dtk-ai-message-user { align-self: flex-end; }
.dtk-ai-message-assistant {
    align-self: flex-start;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    max-width: 100%;
    width: 100%;
}
.dtk-ai-message-content { padding: 0.75rem 1rem; border-radius: 12px; line-height: 1.5; }
.dtk-ai-message-user .dtk-ai-message-content { background: var(--dtk-user-msg-bg); color: var(--dtk-user-msg-color); border-bottom-right-radius: 4px; }
.dtk-ai-message-assistant .dtk-ai-message-content {
    background: var(--dtk-assistant-msg-bg);
    color: var(--dtk-assistant-msg-color);
    border-bottom-left-radius: 4px;
    max-width: 85%;
}

/* Fuentes (UI separada del markdown; tarjeta rectangular con esquinas redondeadas) */
.dtk-ai-sources {
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 0.5rem 0.75rem;
    width: 100%;
    max-width: 100%;
    padding: 0.65rem 1rem;
    background: #f0f0f0;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    font-size: 0.8125rem;
    color: #5c5c5c;
    box-sizing: border-box;
}
.dtk-ai-message-assistant .dtk-ai-sources {
    max-width: 85%;
}
.dtk-ai-sources__avatars {
    display: flex;
    align-items: center;
    padding-left: 0.15rem;
    flex-shrink: 0;
}
.dtk-ai-sources__dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid #f0f0f0;
    margin-left: -8px;
    flex-shrink: 0;
    box-sizing: border-box;
}
.dtk-ai-sources__dot:first-child { margin-left: 0; }
.dtk-ai-sources__dot--site {
    background: linear-gradient(135deg, #5e97c9, #4a7ba8);
    display: grid;
    place-items: center;
}
.dtk-ai-sources__dot--page {
    background: #ddd;
    font-size: 9px;
    font-weight: 700;
    color: #555;
    display: grid;
    place-items: center;
}
.dtk-ai-sources__details { flex: 1; min-width: 0; }
.dtk-ai-sources__summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.15rem 0.25rem;
    user-select: none;
}
.dtk-ai-sources__summary::-webkit-details-marker { display: none; }
.dtk-ai-sources__label {
    font-weight: 600;
    color: #1a1a1a;
    margin-right: 0.15rem;
}
.dtk-ai-sources__links a {
    color: #5c5c5c;
    text-decoration: none;
}
.dtk-ai-sources__links a:hover {
    text-decoration: underline;
    color: #5e97c9;
}
.dtk-ai-sources__more { color: #5c5c5c; }
.dtk-ai-sources__chevron {
    width: 1rem;
    height: 1rem;
    opacity: 0.45;
    flex-shrink: 0;
    margin-left: 0.15rem;
    transition: transform 0.15s ease;
}
.dtk-ai-sources__details[open] .dtk-ai-sources__chevron {
    transform: rotate(90deg);
}
.dtk-ai-sources__expanded {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    width: 100%;
}
.dtk-ai-sources__expanded ul {
    margin: 0;
    padding-left: 1.1rem;
    font-size: 0.8125rem;
}
.dtk-ai-sources__expanded li { margin: 0.25rem 0; }

/* Entradas relacionadas (scroll horizontal + scroll-snap) */
.dtk-ai-related {
    width: 100%;
    max-width: 100%;
    margin-top: 0.35rem;
}
.dtk-ai-message-assistant .dtk-ai-related {
    max-width: 85%;
}
.dtk-ai-related__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.45rem;
    padding: 0 0.05rem;
}
.dtk-ai-related__title {
    font-size: 0.75rem;
    font-weight: 600;
    color: #5c5c5c;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin: 0;
}
.dtk-ai-related__nav {
    display: flex;
    gap: 0.25rem;
    flex-shrink: 0;
}
.dtk-ai-related__btn {
    width: 1.75rem;
    height: 1.75rem;
    border: 1px solid var(--dtk-input-border, #ddd);
    border-radius: 8px;
    background: #fff;
    color: #5c5c5c;
    cursor: pointer;
    display: grid;
    place-items: center;
    padding: 0;
    line-height: 0;
}
.dtk-ai-related__btn:hover {
    color: #5e97c9;
    border-color: rgba(94, 151, 201, 0.45);
}
.dtk-ai-related__track-wrap {
    margin-left: -1rem;
    margin-right: -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
}
.dtk-ai-related__track {
    display: flex;
    gap: 0.65rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    padding-bottom: 0.35rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
.dtk-ai-related__track::-webkit-scrollbar { height: 6px; }
.dtk-ai-related__track::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 3px;
}
.dtk-ai-related__card {
    flex: 0 0 11.5rem;
    scroll-snap-align: start;
    border: 1px solid var(--dtk-input-border, #ddd);
    border-radius: 10px;
    padding: 0.65rem 0.75rem;
    background: #fff;
    text-decoration: none;
    color: inherit;
    display: block;
    min-height: 4.5rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.dtk-ai-related__card:hover {
    border-color: rgba(94, 151, 201, 0.5);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}
.dtk-ai-related__card-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--dtk-assistant-msg-color, #000);
    line-height: 1.35;
    margin: 0 0 0.35rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.dtk-ai-related__card-excerpt {
    font-size: 0.75rem;
    color: #5c5c5c;
    line-height: 1.4;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.dtk-ai-message-content .dtk-ai-link { color: inherit; text-decoration: underline; }
.dtk-ai-input-form {
    flex-shrink: 0;
    padding: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    background: inherit;
}
.dtk-ai-input-wrapper { display: flex; gap: 0.5rem; align-items: flex-end; }
.dtk-ai-input { flex: 1; padding: 0.75rem; border: 1px solid var(--dtk-input-border); border-radius: 8px; font: inherit; resize: none; max-height: 150px; background: #fff; color: #000; }
.dtk-ai-input:focus { outline: 2px solid var(--dtk-input-focus); outline-offset: 2px; }
.dtk-ai-send-btn { display: flex; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem; padding: 0; border: none; border-radius: 8px; background: var(--dtk-send-btn-bg); color: var(--dtk-send-btn-color); cursor: pointer; }
.dtk-ai-send-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.dtk-ai-typing-indicator { display: none; align-items: center; gap: 0.375rem; }
.dtk-ai-typing-indicator span { width: 0.5rem; height: 0.5rem; background: currentColor; border-radius: 50%; opacity: 0.5; }
.dtk-ai-chat-placeholder { padding: 2rem; text-align: center; opacity: 0.7; }