/* ═══ Gerbi — baila por la web ═══ */
.ep-gerbi-root {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 85;
    overflow: hidden;
}

.ep-sound-toggle {
    position: fixed;
    /* Misma columna que 🌐 y 🌙: encima del modo oscuro */
    right: max(20px, env(safe-area-inset-right, 0px));
    bottom: calc(24px + 46px + 10px + 48px + 10px + env(safe-area-inset-bottom, 0px));
    left: auto;
    width: 48px;
    height: 48px;
    margin: 0;
    padding: 0;
    border: 1.5px solid rgba(0, 96, 152, 0.16);
    border-radius: 9999px;
    background: #fff;
    box-shadow: 0 6px 16px rgba(0, 96, 152, 0.1);
    cursor: pointer;
    pointer-events: auto;
    z-index: 10000;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    line-height: 1;
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

body.has-support-widget:has(#ep-translate-wrap):not(:has(#ep-chat-hub)) .ep-sound-toggle {
    bottom: calc(24px + 46px + 10px + 48px + 10px + 5.25rem + env(safe-area-inset-bottom, 0px));
}

/* Con dock de chat: el mute lo posiciona chatbot_widget (columna ⋯/escudo).
   Solo forzar arriba-izquierda si no hay reglas del dock (fallback). */
body:has(#ep-chat-hub) .ep-sound-toggle,
body.has-ep-dock .ep-sound-toggle {
    /* valores por defecto; chatbot_widget los sobrescribe con !important */
    right: calc(14px + 70px + 18px);
    left: auto;
    top: auto;
    bottom: calc(14px + 8px + 42px + 10px);
}

.ep-sound-toggle:hover {
    transform: translateY(-2px);
    border-color: rgba(224, 128, 0, 0.5);
}

.ep-sound-toggle:focus-visible {
    outline: 2px solid var(--blue, #2563eb);
    outline-offset: 3px;
}

.ep-sound-toggle.is-sound-on {
    background: linear-gradient(135deg, #fff8e6, #e8f5fc);
    border-color: rgba(0, 112, 176, 0.35);
}

.ep-sound-toggle.is-sound-off {
    opacity: 0.92;
}

.ep-gerbi {
    position: fixed;
    left: 0;
    bottom: calc(0.65rem + env(safe-area-inset-bottom, 0px));
    right: auto;
    margin: 0;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    pointer-events: auto;
    width: 9.5rem;
    height: auto;
    z-index: 86;
    will-change: transform;
    transform: translate3d(-160px, 0, 0);
}

.ep-gerbi.ep-gerbi--static {
    left: max(0.35rem, env(safe-area-inset-left, 0px));
    right: auto;
    bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
    width: auto;
    height: 11rem;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    transform: none;
    will-change: auto;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    overflow: visible;
}
.ep-gerbi.ep-gerbi--static .ep-gerbi-glow {
    display: none;
}
.ep-gerbi.ep-gerbi--static .ep-gerbi-img {
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: transparent !important;
    width: auto;
    height: 100%;
    max-width: min(11rem, 42vw);
    object-fit: contain;
    object-position: center bottom;
    filter: drop-shadow(0 4px 14px rgba(0, 96, 152, 0.18))
            drop-shadow(0 2px 8px rgba(224, 128, 0, 0.12));
}

/* Un solo Gerbi a la vez: si está el chatbot, él es el visible */
body:has(#ep-chat-hub) #ep-gerbi {
    display: none !important;
}

@media (min-width: 768px) {
    .ep-gerbi.ep-gerbi--static {
        height: 13rem;
        bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
    }
    .ep-gerbi.ep-gerbi--static .ep-gerbi-img {
        max-width: 13rem;
    }
}

.ep-gerbi:focus-visible {
    outline: 2px solid var(--blue, #2563eb);
    outline-offset: 4px;
    border-radius: 0.75rem;
}

.ep-gerbi.is-facing-left .ep-gerbi-img {
    transform: scaleX(-1);
}

.ep-gerbi-glow {
    position: absolute;
    inset: 12% 8% 10%;
    border-radius: 50%;
    background: radial-gradient(ellipse at 50% 55%,
        rgba(255, 255, 255, 0.8) 0%,
        rgba(191, 219, 254, 0.25) 55%,
        transparent 78%);
    filter: blur(5px);
    z-index: 0;
    pointer-events: none;
}

.ep-gerbi-img {
    position: relative;
    z-index: 1;
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
    filter: brightness(1.03) saturate(1.06) drop-shadow(0 5px 12px rgba(100, 116, 139, 0.24));
    pointer-events: none;
    user-select: none;
    -webkit-user-drag: none;
}

.ep-gerbi.is-energized .ep-gerbi-img {
    filter: brightness(1.07) saturate(1.12)
        drop-shadow(0 6px 14px rgba(37, 99, 235, 0.25));
}

.ep-gerbi.is-moving .ep-gerbi-img {
    filter: brightness(1.05) saturate(1.08)
        drop-shadow(0 8px 16px rgba(37, 99, 235, 0.22));
}

.ep-gerbi.is-dancing .ep-gerbi-img {
    transition: filter 0.2s ease;
}

/* ═══ Gerbi profesor TeX (curso LaTeX) ═══ */
.ep-gerbi-tex-root {
    position: fixed;
    right: max(0.75rem, env(safe-area-inset-right, 0px));
    bottom: calc(0.85rem + env(safe-area-inset-bottom, 0px));
    z-index: 80;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.45rem;
    pointer-events: none;
}

.ep-gerbi-tex-ask {
    pointer-events: auto;
    appearance: none;
    border: 1px solid rgba(13, 148, 136, 0.35);
    background: #fff;
    color: #0f766e;
    font: inherit;
    font-size: 0.72rem;
    font-weight: 800;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    cursor: pointer;
    box-shadow: 0 6px 16px rgba(13, 148, 136, 0.12);
}

.ep-gerbi-tex-ask:hover { border-color: #0d9488; background: #f0fdfa; }

.ep-gerbi-tex {
    pointer-events: auto;
    appearance: none;
    border: none;
    background: transparent;
    padding: 0;
    cursor: pointer;
    width: 6.5rem;
    position: relative;
}

.ep-gerbi-tex:focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 3px;
    border-radius: 0.75rem;
}

.ep-gerbi-tex-img {
    display: block;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 6px 14px rgba(15, 118, 110, 0.22));
    user-select: none;
    -webkit-user-drag: none;
}

.ep-gerbi-tex.is-energized .ep-gerbi-tex-img {
    filter: brightness(1.06) saturate(1.1)
        drop-shadow(0 8px 16px rgba(13, 148, 136, 0.3));
}

.ep-gerbi-tex-bubble {
    pointer-events: auto;
    max-width: min(15rem, 72vw);
    padding: 0.6rem 0.8rem;
    background: #fff;
    border: 2px solid rgba(13, 148, 136, 0.28);
    border-radius: 1rem 1rem 0.25rem 1rem;
    box-shadow: 0 10px 24px rgba(15, 118, 110, 0.12);
    opacity: 0;
    transform: translateY(6px) scale(0.94);
    transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.ep-gerbi-tex-bubble.is-open {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.ep-gerbi-tex-bubble[hidden] { display: none !important; }

.ep-gerbi-tex-bubble-text {
    margin: 0;
    font-size: 0.78rem;
    font-weight: 650;
    line-height: 1.45;
    color: #134e4a;
}

.ep-gerbi-tex-mood {
    pointer-events: none;
    font-size: 0.72rem;
    font-weight: 800;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    background: #fff;
    border: 1px solid rgba(13, 148, 136, 0.3);
    color: #0f766e;
    box-shadow: 0 4px 12px rgba(15, 118, 110, 0.12);
}

.ep-gerbi-tex-root.is-ok .ep-gerbi-tex {
    animation: ep-gerbi-tex-bounce 0.55s ease;
}
.ep-gerbi-tex-root.is-ok .ep-gerbi-tex-mood {
    background: #ecfdf5;
    border-color: #6ee7b7;
    color: #047857;
}
.ep-gerbi-tex-root.is-ko .ep-gerbi-tex-mood {
    background: #fff8e6;
    border-color: #fdba74;
    color: #e08000;
}
.ep-gerbi-tex-root.is-ko .ep-gerbi-tex-img {
    filter: grayscale(0.15) drop-shadow(0 6px 14px rgba(15, 118, 110, 0.18));
}

@keyframes ep-gerbi-tex-bounce {
    0%   { transform: translateY(0) scale(1); }
    35%  { transform: translateY(-10px) scale(1.06); }
    70%  { transform: translateY(2px) scale(0.98); }
    100% { transform: translateY(0) scale(1); }
}

@media (max-width: 720px) {
    .ep-gerbi-tex { width: 5.4rem; }
}

@media (prefers-reduced-motion: reduce) {
    .ep-gerbi-tex-root.is-ok .ep-gerbi-tex { animation: none; }
}

/* Bocadillo: caja real (texto contenido) + cola hacia Gerbi */
.ep-gerbi-bubble {
    position: fixed;
    left: 12px;
    top: auto;
    bottom: auto;
    box-sizing: border-box;
    width: min(16.5rem, 78vw);
    max-width: calc(100vw - 1.5rem);
    padding: 0.85rem 1rem 0.9rem;
    background: #fffef7;
    border: 3px solid #1e3a5f;
    border-radius: 1.15rem 1.4rem 1.25rem 1.35rem;
    box-shadow:
        3px 4px 0 #f0c000,
        0 12px 28px rgba(30, 58, 95, 0.16);
    pointer-events: auto;
    z-index: 87;
    opacity: 0;
    transform: translateY(6px) scale(0.96);
    transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.34, 1.35, 0.64, 1);
    overflow: visible;
}
/* Cola izquierda → Gerbi */
.ep-gerbi-bubble::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 1.1rem;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 9px 13px 9px 0;
    border-color: transparent #1e3a5f transparent transparent;
}
.ep-gerbi-bubble::after {
    content: '';
    position: absolute;
    left: -7px;
    top: calc(1.1rem + 2.5px);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 6.5px 9px 6.5px 0;
    border-color: transparent #fffef7 transparent transparent;
}
/* Variante encima: cola hacia abajo */
.ep-gerbi-bubble--above::before {
    left: 1.5rem;
    top: auto;
    bottom: -12px;
    border-width: 13px 9px 0 9px;
    border-color: #1e3a5f transparent transparent transparent;
}
.ep-gerbi-bubble--above::after {
    left: calc(1.5rem + 2.5px);
    top: auto;
    bottom: -7px;
    border-width: 9px 6.5px 0 6.5px;
    border-color: #fffef7 transparent transparent transparent;
}
/* Cola a la derecha → Gerbi del chatbot */
.ep-gerbi-bubble--from-right::before {
    left: auto;
    right: -12px;
    border-width: 9px 0 9px 13px;
    border-color: transparent transparent transparent #1e3a5f;
}
.ep-gerbi-bubble--from-right::after {
    left: auto;
    right: -7px;
    top: calc(1.1rem + 2.5px);
    border-width: 6.5px 0 6.5px 9px;
    border-color: transparent transparent transparent #fffef7;
}

/* Nube ligera que infla desde Gerbi (derecha) */
.ep-gerbi-bubble--float {
    width: min(13.25rem, 72vw);
    max-width: min(13.25rem, calc(100vw - 5.5rem));
    padding: 0.7rem 0.85rem 0.75rem;
    text-align: left;
    min-height: 0;
    display: block;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 1.35rem 1.5rem 0.55rem 1.45rem;
    background:
        radial-gradient(circle at 22% 18%, rgba(255, 255, 255, 0.55), transparent 42%),
        rgba(255, 254, 247, 0.38);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.35),
        0 8px 22px rgba(0, 112, 176, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transform-origin: 92% 100%;
    transform: scale(0.12);
    opacity: 0;
    transition: none;
}
.ep-gerbi-bubble--float .ep-gerbi-bubble-text {
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1.35;
}
.ep-gerbi-bubble--float .ep-gerbi-bubble-link {
    display: inline-flex;
    align-items: center;
    margin-top: 0.3rem;
    font-size: 0.72rem;
    min-height: 28px;
    padding: 0.12rem 0.45rem;
    background: rgba(0, 112, 176, 0.12);
}
.ep-gerbi-bubble--float::before,
.ep-gerbi-bubble--float::after {
    display: none !important;
}
.ep-gerbi-bubble--float.is-open {
    animation: ep-gerbi-inflate 0.5s cubic-bezier(0.34, 1.22, 0.64, 1) forwards;
}
.ep-gerbi-bubble--float.is-closing {
    animation: ep-gerbi-deflate 0.28s ease-in forwards;
}

.ep-gerbi-soap {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 86;
    opacity: 0;
    background:
        radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.7), rgba(232, 245, 252, 0.22) 48%, rgba(0, 112, 176, 0.12) 100%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transform: scale(0.2);
    transform-origin: center;
}
.ep-gerbi-soap.is-on {
    animation: ep-gerbi-soap-puff 0.45s cubic-bezier(0.34, 1.22, 0.64, 1) forwards;
}

@keyframes ep-gerbi-inflate {
    0%   { opacity: 0; transform: scale(0.12); }
    72%  { opacity: 0.92; transform: scale(1.04); }
    100% { opacity: 0.88; transform: scale(1); }
}
@keyframes ep-gerbi-deflate {
    0%   { opacity: 0.88; transform: scale(1); }
    100% { opacity: 0; transform: scale(0.12); }
}
@keyframes ep-gerbi-soap-puff {
    0%   { opacity: 0; transform: scale(0.15); }
    100% { opacity: 0.7; transform: scale(1); }
}

.ep-gerbi-bubble.is-open {
    opacity: 1;
    transform: translateY(0) scale(1);
}
.ep-gerbi-bubble.ep-gerbi-bubble--float.is-open {
    opacity: 0;
    transform: scale(0.12);
    animation: ep-gerbi-inflate 0.5s cubic-bezier(0.34, 1.22, 0.64, 1) forwards;
}
.ep-gerbi-bubble.ep-gerbi-bubble--float.is-closing {
    animation: ep-gerbi-deflate 0.28s ease-in forwards;
}

.ep-gerbi-bubble[hidden] { display: none !important; }

.ep-gerbi-bubble-text {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: -0.01em;
    color: #1e3a5f;
    overflow-wrap: break-word;
}

.ep-gerbi-bubble-link {
    display: inline-block;
    margin-top: 0.4rem;
    max-width: 100%;
    font-size: 0.78rem;
    font-weight: 800;
    color: #0070b0;
    text-decoration: none;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    background: rgba(0, 112, 176, 0.08);
    overflow-wrap: break-word;
}
.ep-gerbi-bubble-link:hover {
    color: #fff;
    background: #0070b0;
    text-decoration: none;
}

html[data-theme="dark"] .ep-gerbi-bubble {
    background: #1e293b;
    border-color: #f0c000;
    box-shadow:
        3px 4px 0 rgba(240, 192, 0, 0.35),
        0 12px 28px rgba(0, 0, 0, 0.4);
}
html[data-theme="dark"] .ep-gerbi-bubble::before {
    border-color: transparent #f0c000 transparent transparent;
}
html[data-theme="dark"] .ep-gerbi-bubble::after {
    border-color: transparent #1e293b transparent transparent;
}
html[data-theme="dark"] .ep-gerbi-bubble--above::before {
    border-color: #f0c000 transparent transparent transparent;
}
html[data-theme="dark"] .ep-gerbi-bubble--above::after {
    border-color: #1e293b transparent transparent transparent;
}
html[data-theme="dark"] .ep-gerbi-bubble-text { color: #f1f5f9; }
html[data-theme="dark"] .ep-gerbi-bubble-link {
    color: #f0c000;
    background: rgba(240, 192, 0, 0.12);
}
html[data-theme="dark"] .ep-gerbi-bubble-link:hover {
    color: #0f172a;
    background: #f0c000;
}
html[data-theme="dark"] .ep-gerbi-bubble--float {
    background:
        radial-gradient(circle at 22% 18%, rgba(255, 255, 255, 0.18), transparent 42%),
        rgba(15, 40, 70, 0.42);
    border-color: rgba(255, 255, 255, 0.28);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        0 8px 22px rgba(0, 0, 0, 0.22);
}
html[data-theme="dark"] .ep-gerbi-bubble--float .ep-gerbi-bubble-text {
    color: #e8eef5;
}
html[data-theme="dark"] .ep-gerbi-bubble--float .ep-gerbi-bubble-link {
    color: #f0c000;
    background: rgba(240, 192, 0, 0.12);
}
html[data-theme="dark"] .ep-gerbi-soap {
    background:
        radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.22), rgba(30, 58, 95, 0.35) 42%, rgba(0, 112, 176, 0.35) 72%, rgba(240, 192, 0, 0.28) 100%);
    border-color: rgba(240, 192, 0, 0.35);
}
html[data-theme="dark"] .ep-sound-toggle {
    background: #1e293b;
    border-color: rgba(240, 192, 0, 0.45);
    color: #f1f5f9;
}

@media (max-width: 720px) {
    .ep-gerbi { width: 4.5rem; }
    .ep-gerbi.ep-gerbi--static {
        height: 4.5rem;
        bottom: calc(4.5rem + env(safe-area-inset-bottom, 0px));
        left: max(0.2rem, env(safe-area-inset-left, 0px));
    }
    .ep-gerbi.ep-gerbi--static .ep-gerbi-img {
        max-width: 4.5rem;
    }
    .ep-sound-toggle {
        width: 42px;
        height: 42px;
        right: max(14px, env(safe-area-inset-right, 0px));
        bottom: calc(20px + 42px + 8px + 42px + 8px + env(safe-area-inset-bottom, 0px));
        font-size: 1.05rem;
    }
    body.has-support-widget:has(#ep-translate-wrap):not(:has(#ep-chat-hub)) .ep-sound-toggle {
        bottom: calc(20px + 42px + 8px + 42px + 8px + 5rem + env(safe-area-inset-bottom, 0px));
    }
    .ep-gerbi-bubble {
        width: min(17rem, calc(100vw - 5.25rem));
        max-width: calc(100vw - 5.25rem);
        padding: 0.65rem 0.8rem 0.7rem;
        border-width: 2px;
        box-shadow: 2px 3px 0 #f0c000, 0 8px 18px rgba(30, 58, 95, 0.14);
    }
    .ep-gerbi-bubble-text {
        font-size: 0.8125rem;
        line-height: 1.45;
        font-weight: 650;
    }
    .ep-gerbi-bubble-link {
        font-size: 0.75rem;
        margin-top: 0.35rem;
        padding: 0.2rem 0.5rem;
        min-height: 32px;
        display: inline-flex;
        align-items: center;
    }
    .ep-gerbi-bubble--float {
        width: min(12.5rem, calc(100vw - 5.25rem));
        max-width: calc(100vw - 5.25rem);
        padding: 0.6rem 0.75rem 0.65rem;
        border-width: 1px;
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.28),
            0 6px 16px rgba(0, 112, 176, 0.1);
    }
}

@media (prefers-reduced-motion: reduce) {
    .ep-gerbi-bubble { transition: none; }
    .ep-gerbi-bubble--float.is-open {
        animation: none;
        opacity: 0.88;
        transform: scale(1);
    }
    .ep-gerbi-bubble--float.is-closing {
        animation: none;
        opacity: 0;
    }
    .ep-gerbi-soap,
    .ep-gerbi-soap.is-on { animation: none; opacity: 0.45; transform: none; }
    .ep-sound-toggle { transition: none; }
}

html[data-theme="dark"] .ep-gerbi-glow {
    background: radial-gradient(ellipse at 50% 55%,
        rgba(255, 255, 255, 0.08) 0%, rgba(59, 130, 246, 0.12) 55%, transparent 78%);
}

html[data-theme="dark"] .ep-gerbi-bubble {
    background: #1e293b;
    border-color: #f0c000;
}
html[data-theme="dark"] .ep-gerbi-bubble.ep-gerbi-bubble--float {
    background:
        radial-gradient(circle at 22% 18%, rgba(255, 255, 255, 0.18), transparent 42%),
        rgba(15, 40, 70, 0.42);
    border-color: rgba(255, 255, 255, 0.28);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        0 8px 22px rgba(0, 0, 0, 0.22);
}
html[data-theme="dark"] .ep-gerbi-bubble.ep-gerbi-bubble--float .ep-gerbi-bubble-text {
    color: #e8eef5;
}
html[data-theme="dark"] .ep-gerbi-bubble.ep-gerbi-bubble--float .ep-gerbi-bubble-link {
    color: #f0c000;
    background: rgba(240, 192, 0, 0.12);
}
html[data-theme="dark"] .ep-gerbi-bubble::after {
    background: #1e293b;
    border-right-color: #f0c000;
    border-bottom-color: #f0c000;
}

html[data-theme="dark"] .ep-gerbi-bubble-text { color: #f1f5f9; }

html[data-theme="dark"] .ep-sound-toggle {
    background: #1e293b;
    border-color: #475569;
    color: #f1f5f9;
}

html[data-theme="dark"] .ep-sound-toggle.is-sound-on {
    background: linear-gradient(135deg, #1e3a5f, #1e293b);
    border-color: #60a5fa;
}