/*
 * Mango · chat
 * Patrón estándar de un chat de IA (saludo, sugerencias, mensajes, compositor fijo)
 * con el lenguaje editorial de rgmendezr.com: papel, tinta, líneas finas, Cormorant + DM Sans,
 * sin esquinas redondeadas. Se carga DESPUÉS de montreux.css.
 */

:root {
    --nav-h: 76px;                         /* lo ajusta mango-chat.js a la altura real de la navegación */
    --mango-line-soft: rgba(28, 26, 23, 0.14);
    --mango-paper-light: #faf8f4;
    --mango-column: 760px;
    --mango-error: #8a2f2a;
}

/* Evita desbordes horizontales. `hidden` convertiría a body en contenedor de scroll y rompería
   position: sticky (barra Base y compositor); `clip` no. */
html,
body {
    max-width: 100%;
    overflow-x: hidden;
}

@supports (overflow: clip) {
    html,
    body {
        overflow-x: clip;
    }
}

.mango-app {
    display: flex;
    flex-direction: column;
    width: min(100%, 980px);
    margin: 0 auto;
    min-height: calc(100vh - var(--nav-h));
    min-height: calc(100dvh - var(--nav-h));
    border-inline: 1px solid var(--line);
}

.chat-stage {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-width: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ───────── Barra "Base": siempre visible, dice en qué se apoya Mango ───────── */

.basebar {
    position: sticky;
    top: var(--nav-h);
    z-index: 20;
    display: flex;
    align-items: stretch;
    min-height: 44px;
    border-bottom: 1px solid var(--line);
    background: rgba(244, 241, 235, 0.96);
    backdrop-filter: blur(12px);
}

.basebar-label,
.basebar-links a {
    display: inline-flex;
    align-items: center;
    padding: 0 clamp(0.7rem, 1.6vw, 1.1rem);
    font: 500 0.62rem/1.3 "DM Sans", Arial, sans-serif;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    white-space: nowrap;
    color: var(--muted);
}

.basebar-label {
    margin: 0;
    padding-left: clamp(1rem, 3vw, 1.5rem);
}

.basebar-links {
    display: flex;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.basebar-links::-webkit-scrollbar {
    display: none;
}

.basebar-links a {
    border-left: 1px solid var(--mango-line-soft);
    color: var(--ink);
    text-decoration: none;
    transition: background-color 160ms ease;
}

.basebar-links a:hover,
.basebar-links a:focus-visible {
    background: var(--paper-deep);
}

.basebar-links a b {
    margin-right: 0.45em;
    font: 500 0.95rem/1 "Cormorant Garamond", Georgia, serif;
    letter-spacing: 0;
    color: var(--muted);
}

.basebar-links .basebar-main {
    font-weight: 700;
}

.chat-stage .button-new {
    align-self: center;
    min-height: 30px !important;
    margin: 0 clamp(0.7rem, 2vw, 1.1rem) 0 0.4rem;
    padding: 0.35rem 0.8rem !important;
    font-size: 0.6rem !important;
    letter-spacing: 0.14em !important;
    white-space: nowrap;
}

.chat-stage .button-new[hidden] {
    display: none;
}

/* ───────── Estado vacío: saludo, tres obras y sugerencias ───────── */

.hero-panel {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    padding: clamp(1.2rem, 3.5vh, 2.6rem) clamp(1rem, 4vw, 2.5rem) 1.75rem;
    text-align: center;
}

.chat-stage:not(.is-empty) .hero-panel {
    display: none;
}

.hero-logo-wrap {
    width: 48px;
    height: 48px;
    margin: 0 auto 0.7rem;
    padding: 3px;
    border: 1px solid var(--line);
    border-radius: 50%;
}

.hero-logo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.hero-kicker {
    margin: 0 0 0.6rem;
    font: 500 0.66rem/1.4 "DM Sans", Arial, sans-serif;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
}

.chat-stage .hero-title {
    max-width: none !important;
    margin: 0 !important;
    font-size: clamp(2.3rem, 5.2vw, 3.6rem) !important;
    line-height: 0.92 !important;
    letter-spacing: -0.035em !important;
    text-align: center;
}

.hero-lede {
    max-width: 44rem;
    margin: 0.75rem auto 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--muted);
}

.hero-lede strong {
    color: var(--ink);
    font-weight: 500;
}

.works {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    max-width: 52rem;
    border: 1px solid var(--line);
    text-align: left;
}

.work-card {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    padding: 0.95rem 1.05rem 0.85rem;
    border-left: 1px solid var(--line);
    color: var(--ink);
    text-decoration: none;
    transition: background-color 160ms ease;
}

.work-card:first-child {
    border-left: 0;
}

.work-card:hover,
.work-card:focus-visible {
    background: var(--paper-deep);
}

.work-num {
    font: 500 0.62rem/1.3 "DM Sans", Arial, sans-serif;
    letter-spacing: 0.17em;
    text-transform: uppercase;
    color: var(--muted);
}

.work-card .work-title {
    margin: 0;
    font-size: 1.45rem !important;
    line-height: 1.05 !important;
    letter-spacing: -0.01em !important;
    text-transform: none;
}

.work-desc {
    margin: 0;
    font-size: 0.82rem;
    line-height: 1.5;
    color: var(--muted);
}

.work-link {
    margin-top: auto;
    padding-top: 0.35rem;
    font: 500 0.6rem/1.3 "DM Sans", Arial, sans-serif;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.starters {
    width: 100%;
    max-width: 52rem;
}

.starters-label {
    margin: 0 0 0.7rem;
    font: 500 0.62rem/1.3 "DM Sans", Arial, sans-serif;
    letter-spacing: 0.17em;
    text-transform: uppercase;
    color: var(--muted);
}

.starters-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
}

.chat-stage .starter {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    min-height: 0;
    min-width: 0;
    padding: 0.7rem 0.95rem !important;
    border-color: var(--line) !important;
    text-align: left;
    text-transform: none !important;
    letter-spacing: 0 !important;
    font-family: "DM Sans", Arial, sans-serif !important;
    cursor: pointer;
}

.starter-title {
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1.3;
}

/* Una sola línea: la frase completa se escribe en el cuadro al elegir la entrada. */
.starter-text {
    display: block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.82rem;
    font-weight: 400;
    line-height: 1.45;
    opacity: 0.78;
}

.chat-stage .starter:hover .starter-text {
    opacity: 1;
}

.base-text {
    width: 100%;
    max-width: 52rem;
    text-align: left;
}

.base-text summary {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    min-height: 40px;
    cursor: pointer;
    list-style: none;
    font: 500 0.62rem/1.3 "DM Sans", Arial, sans-serif;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--muted);
}

.base-text summary::-webkit-details-marker {
    display: none;
}

.base-text summary::after {
    content: "+";
    font-size: 1rem;
    line-height: 1;
}

.base-text[open] summary::after {
    content: "\2212";
}

.base-text summary:hover,
.base-text summary:focus-visible {
    color: var(--ink);
}

.base-text pre {
    max-height: 320px;
    margin: 0.8rem 0 0;
    padding: 1.1rem 1.2rem;
    overflow: auto;
    border: 1px solid var(--line);
    background: var(--mango-paper-light);
    font: 400 0.9rem/1.7 "DM Sans", Arial, sans-serif;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

/* ───────── Conversación ───────── */

/* Sus hijos (mensajes, indicador, compositor) pasan a ser hijos del escenario: así el compositor
   se fija al borde inferior de la ventana y no solo dentro de este contenedor. */
.chat-card {
    display: contents;
}

.chat-stage.is-empty .chat-messages {
    display: none;
}

.chat-messages {
    width: min(100%, var(--mango-column));
    margin: 0 auto;
    padding: 1.6rem clamp(1rem, 3vw, 1.25rem) 0.5rem;
}

.message {
    display: flex;
    gap: 0.85rem;
    margin-bottom: 1.7rem;
    scroll-margin-top: calc(var(--nav-h) + 56px);
    transition: opacity 220ms ease, transform 220ms ease;
}

.message.is-entering {
    opacity: 0;
    transform: translateY(8px);
}

.message-user {
    justify-content: flex-end;
}

.message-avatar {
    flex: 0 0 auto;
    width: 30px;
    height: 30px;
    margin-top: 1px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: var(--paper-deep) url("../img/mango-logo-circle-gold.png") center / cover no-repeat;
}

.message-bubble {
    min-width: 0;
    overflow-wrap: anywhere;
}

.message-role {
    display: block;
    margin-bottom: 0.35rem;
    font: 500 0.62rem/1.3 "DM Sans", Arial, sans-serif;
    letter-spacing: 0.17em;
    text-transform: uppercase;
    color: var(--muted);
}

.message-user .message-role {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
}

.message-assistant .message-bubble {
    flex: 1;
}

.message-user .message-bubble {
    max-width: min(82%, 36rem);
    padding: 0.75rem 1rem;
    border: 1px solid var(--mango-line-soft);
    background: var(--paper-deep);
}

.message-error .message-bubble {
    padding-left: 0.9rem;
    border-left: 2px solid var(--mango-error);
    color: var(--mango-error);
}

.message-content {
    font-size: 0.97rem;
    line-height: 1.75;
}

.message-content p {
    margin: 0;
    white-space: pre-wrap;
}

.message-content > :is(p, ul, ol, h3) + :is(p, ul, ol, h3) {
    margin-top: 0.85rem;
}

.message-content ul,
.message-content ol {
    margin: 0;
    padding-left: 1.3rem;
}

.message-content li {
    margin: 0.35rem 0 0;
    line-height: 1.65;
}

.message-content li:first-child {
    margin-top: 0;
}

/* Títulos de las respuestas (Mirada, Opciones…): rótulos editoriales con filete */
.message-content h3 {
    margin: 0 0 0.4rem !important;
    padding-top: 0.9rem;
    border-top: 1px solid var(--mango-line-soft);
    font: 500 0.64rem/1.4 "DM Sans", Arial, sans-serif !important;
    letter-spacing: 0.17em;
    text-transform: uppercase;
    color: var(--muted);
}

.message-content > h3:first-child {
    padding-top: 0;
    border-top: 0;
}

.message-content > :is(p, ul, ol) + h3 {
    margin-top: 1.15rem !important;
}

.message-content > h3 + :is(p, ul, ol) {
    margin-top: 0;
}

.message-content strong {
    font-weight: 700;
}

/* ───────── Indicador de escritura (en línea, como en los chats de IA) ───────── */

.typing-indicator {
    width: min(100%, var(--mango-column));
    margin: 0 auto;
    padding: 0 clamp(1rem, 3vw, 1.25rem) 1rem;
    scroll-margin-bottom: 10rem; /* deja libre el compositor fijo */
}

.typing-indicator[hidden] {
    display: none;
}

.typing-indicator .message {
    margin-bottom: 0;
}

.thinking-title {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    font-size: 0.92rem;
    color: var(--muted);
}

.thinking-dots {
    display: inline-flex;
    gap: 4px;
}

.thinking-dots i {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--ink);
    opacity: 0.25;
    animation: mango-dot 1.2s ease-in-out infinite;
}

.thinking-dots i:nth-child(2) {
    animation-delay: 0.15s;
}

.thinking-dots i:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes mango-dot {
    0%, 80%, 100% {
        opacity: 0.25;
        transform: translateY(0);
    }

    40% {
        opacity: 1;
        transform: translateY(-3px);
    }
}

/* ───────── Compositor fijo abajo ───────── */

.chat-composer {
    position: sticky;
    bottom: 0;
    margin-top: auto;
    z-index: 15;
    width: min(100%, var(--mango-column));
    margin-right: auto;
    margin-left: auto;
    padding: 1.2rem clamp(1rem, 3vw, 1.25rem) 0.9rem;
    background: linear-gradient(to top, var(--paper) 78%, rgba(244, 241, 235, 0));
}

.composer-box {
    border: 1px solid var(--line);
    background: var(--mango-paper-light);
    transition: border-color 160ms ease;
}

.composer-box:focus-within {
    border-color: var(--ink);
}

.chat-composer textarea {
    display: block;
    width: 100%;
    min-height: 3.1rem;
    max-height: min(40vh, 320px); /* cabe una situación larga; pasado esto el campo hace scroll */
    padding: 0.9rem 1rem 0.3rem;
    resize: none;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--ink);
    font: 400 1rem/1.5 "DM Sans", Arial, sans-serif;
}

.chat-composer textarea::placeholder {
    color: #8c867b;
}

.composer-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.35rem 0.55rem 0.55rem 1rem;
}

.composer-hint {
    margin: 0;
    font-size: 0.72rem;
    color: var(--muted);
}

/* Contador de caracteres: solo se ve al acercarse al límite. */
.composer-count {
    margin: 0;
    font-size: 0.72rem;
    font-variant-numeric: tabular-nums;
    color: var(--muted);
}

.composer-count[hidden] {
    display: none;
}

.composer-count.is-near-limit {
    color: var(--mango-error);
    font-weight: 700;
}

.chat-composer.has-count .composer-hint {
    display: none;
}

.composer-actions {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.chat-composer .button-send {
    width: 40px;
    min-height: 40px !important;
    height: 40px;
    padding: 0 !important;
    background: var(--ink) !important;
    color: var(--paper) !important;
    font-size: 1.1rem !important;
    letter-spacing: 0 !important;
    cursor: pointer;
}

.chat-composer .button-send:hover:not(:disabled) {
    background: transparent !important;
    color: var(--ink) !important;
}

.chat-composer .button-send:disabled,
.chat-stage .button-new:disabled {
    opacity: 0.45;
    cursor: wait;
}

.chat-composer textarea:disabled {
    opacity: 0.7;
}

.privacy-note {
    margin: 0.6rem 0 0;
    font-size: 0.7rem;
    line-height: 1.45;
    text-align: center;
    color: var(--muted);
}

.privacy-note strong {
    color: var(--ink);
    font-weight: 500;
}

.chat-stage button:focus-visible,
.chat-stage a:focus-visible,
.base-text summary:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 2px;
}

/* ───────── Tablet y móvil ───────── */

@media (max-width: 860px) {
    .works {
        grid-template-columns: 1fr;
    }

    .work-card {
        border-left: 0;
        border-top: 1px solid var(--line);
    }

    .work-card:first-child {
        border-top: 0;
    }
}

@media (max-width: 640px) {
    .mango-app {
        border-inline: 0;
    }

    .basebar-label,
    .lede-extra {
        display: none;
    }

    /* Se desplaza en horizontal: el degradado avisa de que hay más enlaces. */
    .basebar-links {
        -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 26px), transparent);
        mask-image: linear-gradient(to right, #000 calc(100% - 26px), transparent);
        scroll-snap-type: x proximity;
    }

    .basebar-links a {
        padding-inline: 0.7rem;
        letter-spacing: 0.1em;
        scroll-snap-align: start;
    }

    .chat-stage .button-new {
        min-height: 36px !important;
        margin-right: 0.6rem;
    }

    .hero-panel {
        justify-content: flex-start;
        gap: 1.1rem;
        padding: 1.3rem 1rem 1.5rem;
    }

    .hero-lede {
        font-size: 0.93rem;
    }

    /* Obras en filas compactas: numeral + título + flecha (la descripción está en el ensayo). */
    .works {
        grid-template-columns: 1fr;
    }

    .work-card {
        display: grid;
        grid-template-columns: 1fr auto;
        align-items: center;
        column-gap: 0.8rem;
        row-gap: 0.2rem;
        padding: 0.8rem 1rem;
    }

    .work-desc,
    .work-link {
        display: none;
    }

    .work-card::after {
        content: "\2197";
        grid-column: 2;
        grid-row: 1 / span 2;
        font-size: 1rem;
        color: var(--muted);
    }

    .starters-grid {
        grid-template-columns: 1fr;
    }

    /* Mensajes a todo el ancho: el avatar va junto al rótulo "Mango", no en una columna aparte. */
    .message {
        gap: 0;
    }

    .message-assistant {
        display: block;
        position: relative;
    }

    .message-assistant .message-avatar {
        position: absolute;
        top: 0;
        left: 0;
        width: 22px;
        height: 22px;
        margin: 0;
    }

    .message-assistant .message-role {
        display: flex;
        align-items: center;
        min-height: 22px;
        margin-bottom: 0.4rem;
        padding-left: 30px;
    }

    .message-user .message-bubble {
        max-width: 92%;
    }

    .message-content {
        font-size: 0.95rem;
    }

    /* Cuadro de escritura compacto: campo y botón en la misma fila. */
    .chat-composer {
        padding: 0.7rem 0.75rem calc(0.6rem + env(safe-area-inset-bottom));
    }

    .composer-box {
        display: flex;
        align-items: flex-end;
    }

    .chat-composer textarea {
        flex: 1;
        min-width: 0;
        min-height: 2.9rem;
        max-height: min(32vh, 220px);
        padding: 0.8rem 0.4rem 0.8rem 0.9rem;
    }

    /* Botón (y, si hace falta, el contador encima) a la derecha del campo. */
    .composer-bar {
        flex-direction: column;
        align-items: flex-end;
        justify-content: flex-end;
        gap: 0.3rem;
        padding: 0 0.4rem 0.4rem 0;
    }

    .composer-hint {
        display: none;
    }

    .privacy-note {
        margin-top: 0.45rem;
        font-size: 0.62rem;
        line-height: 1.35;
    }

    .typing-indicator {
        padding-bottom: 0.6rem;
        scroll-margin-bottom: 7rem;
    }
}

@media (max-width: 360px) {
    .basebar-links a {
        padding-inline: 0.55rem;
        letter-spacing: 0.08em;
    }

    .chat-stage .hero-title {
        font-size: 2.1rem !important;
    }
}

/* Teléfono en horizontal: poca altura, así que la barra Base deja de ser fija y el aviso se compacta. */
@media (max-height: 520px) and (orientation: landscape) {
    .basebar {
        position: static;
    }

    .chat-composer {
        padding-top: 0.5rem;
    }

    .privacy-note {
        margin-top: 0.3rem;
        font-size: 0.58rem;
    }
}