/* ==============================
   RESET
============================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

/* ==============================
   VARIABLES BASE (DEFAULT)
============================== */
.mar_layout {
    --mar-color-bg-sidebar: #1e293b;
    --mar-color-bg-nav: #334155;
    --mar-color-bg-nav-hover: #475569;
    --mar-color-bg-active: #0ea5e9;

    --mar-color-bg-content: #ffffff;
    --mar-color-text-main: #1e293b;
    --mar-color-text-muted: #475569;
    --mar-color-text-light: #ffffff;

    --mar-color-border: #334155;
}

/* ==============================
   TEMA AZUL OSCURO PERSONALIZADO
============================== */
.mar_layout.mar_theme_custom {
    --mar-color-bg-sidebar: #2b2b2b; /* fondo principal */
    --mar-color-bg-nav: #464646; /* items nav */
    --mar-color-bg-nav-hover: #373ca6; /* hover */
    --mar-color-bg-active: #0067a0; /* activo / acento */

    --mar-color-bg-content: #ffffff;
    --mar-color-text-main: #2b2b2b;
    --mar-color-text-muted: #464646;
    --mar-color-text-light: #eef6fb;

    --mar-color-border: #0969a1;
}

/* ==============================
   LAYOUT
============================== */
.mar_layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
    background: var(--mar-color-bg-content);
}

.mar_layout strong {
    color: var(--mar-color-border);
}

.mar_top {
    grid-column: 1 / -1; /* ocupa 100% */
}
.img-fluid {
    max-width: 100%;
    height: auto;
}
/* ==============================
   SIDEBAR / NAV
============================== */
.mar_sidebar {
    width: 240px;
    background: var(--mar-color-bg-sidebar);
    color: var(--mar-color-text-light);
    display: flex;
    flex-direction: column;
    grid-column: 1;
}

/* ---------- Mobile nav (Prev / Title / Next) ---------- */
.mar_nav {
    list-style: none !important;
}
.mar_nav_mobile {
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px;
    background: var(--mar-color-bg-sidebar);
    border-bottom: 1px solid var(--mar-color-border);
}

.mar_nav_btn {
    background: var(--mar-color-bg-active);
    border: none;
    color: var(--mar-color-text-light);
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.mar_nav_btn:hover {
    background: #0e69a2;
}

.mar_nav_btn:active {
    transform: scale(0.97);
}

.mar_nav_title {
    flex: 1;
    text-align: center;
    font-weight: bold;
    /*white-space: nowrap;*/
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---------- Desktop nav (Tabs) ---------- */
/* ---------- Desktop nav (Tabs) ---------- */
.mar_nav {
    list-style: none !important;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
}

.mar_nav_item {
    position: relative;
    padding: 12px 12px 12px 28px; /* espacio para el punto */
    background: var(--mar-color-bg-nav);
    border-radius: 6px;
    cursor: pointer;
    text-align: center;
    transition: background 0.25s ease;
    user-select: none;
}

/* Punto base (invisible por defecto) */
.mar_nav_item::before {
    content: "";
    position: absolute;
    left: 10px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: transparent;
    transform: translateY(-50%);
    transition:
        background-color 0.3s ease,
        transform 0.3s ease;
}

/* Ya visto */
.mar_nav_item.mar_viewed::before {
    background: var(--mar-color-border);
}

/* Hover solo cambia fondo, NO el punto */
.mar_nav_item:hover {
    background: var(--mar-color-bg-nav-hover);
}

/* Activo */
.mar_nav_item.mar_active {
    background: var(--mar-color-bg-active);
}

.mar_nav_item.mar_active::before {
    background: var(--mar-color-border);
    transform: translateY(-50%) scale(1.25);
}

/* ==============================
   CONTENT
============================== */
.mar_content {
    position: relative;
    flex: 1;
    padding: 24px;
    background: var(--mar-color-bg-content);
    color: var(--mar-color-text-main);
    grid-column: 2;

    /*max-height: 70vh;
    overflow-y: auto;*/
    scroll-behavior: smooth;
}

.mar_tab {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: translateY(4px);
    transition:
        opacity 0.05s ease-in,
        transform 0.15s ease-in;

    pointer-events: none;
}

.mar_tab.mar_active {
    position: relative; /* solo el activo sale del stack */
    opacity: 1;
    transform: translateY(0);
    transition:
        opacity 1.05s cubic-bezier(0.22, 1, 0.36, 1),
        transform 1.05s cubic-bezier(0.22, 1, 0.36, 1);

    pointer-events: auto;
}

@keyframes marFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.mar_tab h3 {
    margin-bottom: 12px;
    color: var(--mar-color-text-main);
}

.mar_tab p {
    color: var(--mar-color-text-muted);
    text-align: justify;
    line-height: 115%;
    margin: 1em 0.5em !important;
}
.mar_tab ol,
.mar_tab ul {
    color: var(--mar-color-text-muted);
    line-height: 1;
    margin: 0.5em 3em;
}
.mar_bottom {
    grid-column: 1 / -1;
}
/* ==============================
   panel interno
============================== */
.mar_subtopics {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.mar_subtopic {
    border: 1px solid var(--mar-color-border, #ccc);
    border-radius: 8px;
    overflow: hidden;
    background: var(--mar-color-bg-content, #fff);
}
.mar_subtopic_header {
    width: 100%;
    padding: 14px 16px;
    background: none;
    border: none;
    cursor: pointer;

    display: flex;
    justify-content: space-between;
    align-items: center;

    font-size: 15px;
    font-weight: bolder;
    color: var(--mar-color-text, #2b2b2b);

    transition: background-color 150ms ease;
}

.mar_subtopic_header:hover {
    background-color: var(--mar-color-bg-nav-hover);
    color: var(--mar-color-bg-content);
}
.mar_subtopic_icon {
    font-size: 2em;
    transition: transform 200ms ease;
}
.mar_subtopic_icon img {
    width: 1em;
    transform-origin: center;
    /*animation: rayo 1.2s infinite ease-in-out;*/
    animation: reasoningPulse 1.6s infinite ease-in-out;
}
@keyframes reasoningPulse {
    0% {
        filter: brightness(1) saturate(1) drop-shadow(0 0 0 rgba(0, 204, 255, 0));
    }

    45% {
        filter: brightness(1.3) saturate(1.6) drop-shadow(0 0 6px rgba(0, 204, 255, 0.5))
            drop-shadow(0 0 12px rgba(0, 153, 255, 0.35));
    }

    100% {
        filter: brightness(1) saturate(1) drop-shadow(0 0 0 rgba(0, 204, 255, 0));
    }
}

@keyframes applyKnowledgePulse {
    0% {
        filter: brightness(1) saturate(1) drop-shadow(0 0 0 rgba(255, 235, 59, 0));
    }

    40% {
        filter: brightness(1.4) saturate(1.8) drop-shadow(0 0 6px rgba(255, 235, 59, 0.6))
            drop-shadow(0 0 14px rgba(255, 193, 7, 0.4));
    }

    100% {
        filter: brightness(1) saturate(1) drop-shadow(0 0 0 rgba(255, 235, 59, 0));
    }
}

@keyframes rayo {
    0% {
        filter: brightness(1) saturate(1) drop-shadow(0 0 0 #00ccff);
    }

    50% {
        filter: brightness(1.6) saturate(2) drop-shadow(0 0 6px #00ccff) drop-shadow(0 0 14px #0099ff);
    }

    100% {
        filter: brightness(1) saturate(1) drop-shadow(0 0 0 #00ccff);
    }
}
.mar_subtopic.mar_open .mar_subtopic_body {
    max-height: 600px; /* suficiente para contenido breve */
    padding: 0.5em;
    opacity: 1;
}
.mar_open .mar_subtopic_header {
    background-color: var(--mar-color-bg-active);
    color: var(--mar-color-text-light);
}

.mar_subtopic.mar_open .mar_subtopic_icon {
    transform: rotate(45deg);
}

.mar_subtopic_body {
    max-height: 0;
    overflow: hidden;
    padding: 0 16px;

    transition:
        max-height 300ms ease,
        padding 200ms ease,
        opacity 200ms ease;

    opacity: 0;
}
.mar_subtopic_activity_block {
    border: 2px dotted var(--mar-color-bg-nav);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.06));
}
.mar_subtopic_activity .mar_subtopic_header {
    background: var(--mar-color-bg-nav, #e91e63);
    color: #fff;
    font-weight: 600;
}
.mar_subtopic_activity .mar_subtopic_icon {
    transform: rotate(0deg);
    transition: transform 0.3s ease;
}
.mar_subtopic_activity_block.mar_open .mar_subtopic_icon {
    transform: rotate(360deg);
}

@media (prefers-reduced-motion: reduce) {
    .mar_subtopic_body,
    .mar_subtopic_icon {
        transition: none;
    }
}
/* ==============================
 SUBTABS
============================== */

.mar_subtabs_buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.mar_subtab_btn {
    flex: 1 1 auto;
    padding: 10px 14px;
    border: 1px solid var(--mar-color-border, #ccc);
    border-radius: 6px;
    background: var(--mar-color-bg-content, #fff);
    cursor: pointer;
    font-size: 14px;
    transition:
        background-color 150ms,
        transform 100ms,
        box-shadow 150ms;
}

/* Animación “clickeame” */
.mar_subtab_btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.mar_subtab_btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.mar_subtab_btn.mar_active {
    background-color: var(--mar-color-primary, #0067a0);
    color: #fff;
}

.mar_subtabs_content {
    border: 1px solid var(--mar-color-border, #ccc);
    border-radius: 6px;
    padding: 16px;
    background: var(--mar-color-bg-content, #fff);
    min-height: 80px; /* espacio mínimo para el mensaje inicial */
}

.mar_subtab_content {
    display: none;
}

.mar_subtab_content.mar_active {
    display: block;
}

.mar_subtab_message {
    display: block;
    color: #555;
    font-style: italic;
}

/* Al seleccionar un subtab, el mensaje desaparece */
.mar_subtabs_container.subtab-selected .mar_subtab_message {
    display: none;
}

/* Responsive */
@media (max-width: 600px) {
    .mar_subtabs_buttons {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .mar_subtab_btn {
        flex: 0 0 auto;
        min-width: 120px;
    }
}
/* ==============================
   STEP CONTENT
============================== */

.mar_steps_container {
    margin-top: 24px;
    border: 1px solid var(--mar-color-border, #ccc);
    border-radius: 8px;
    padding: 16px;
    background: var(--mar-color-bg-content, #fff);
}

/* Indicador */
.mar_steps_progress {
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--mar-color-text-muted);
}

/* Paso */
.mar_step {
    display: none;
    animation: marFadeIn 200ms ease;
}

.mar_step.mar_active {
    display: block;
}

.mar_step h4 {
    margin-bottom: 10px;
    color: var(--mar-color-text-main);
}

/* Navegación */
.mar_steps_nav {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    gap: 12px;
}

.mar_step_btn {
    flex: 1;
    padding: 10px 14px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    background: var(--mar-color-bg-active);
    color: var(--mar-color-text-light);
    font-size: 14px;
    transition:
        background-color 150ms ease,
        transform 100ms ease;
}

.mar_step_btn:hover:not(:disabled) {
    background-color: #0e69a2;
    transform: translateY(-1px);
}

.mar_step_btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Mobile refinamiento */
@media (max-width: 600px) {
    .mar_steps_nav {
        flex-direction: column;
    }
}

/* ==============================
   Frames Responsivos
============================== */
.mar_videoWrapper,
.mar_geniallyWrapper {
    width: 80%;
    margin: auto;
    max-width: 800px;
}

.mar_videoRatio,
.mar_geniallyRatio {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
}

.mar_videoRatio iframe,
.mar_geniallyRatio iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.mar_pdfFrame {
    width: 100%;
    height: 600px;
    border: 0;
}

.mar_imageFrame {
    max-width: 100%;
    height: auto;
    display: block;
    margin: auto;
}

/* ==============================
   Propuesta visual #1 quiz
============================== */
.mar_activity_card {
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    padding: 20px;
    margin: 24px 0;

    background: #f8fafc;
    border: 2px dashed var(--mar-color-bg-active);
    border-radius: 12px;

    text-decoration: none;
    color: var(--mar-color-text-main);

    transition:
        transform 0.3s ease,
        box-shadow 0.3s ease,
        background-color 0.3s ease;
}

/* Hover pedagógico */
.mar_activity_card:hover {
    transform: translateY(-4px);
    background-color: var(--mar-color-text-light);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* Icono */
.mar_activity_icon {
    font-size: 40px;
    animation: marPulse 1.8s infinite;
}
.mar_activity_icon img {
    width: 100px;
}
.filterPink {
    filter: invert(36%) sepia(98%) saturate(6969%) hue-rotate(315deg) brightness(90%) contrast(119%);
}

/* Texto */
.mar_activity_content h4 {
    margin-bottom: 6px;
    font-size: 18px;
}

.mar_activity_content p {
    font-size: 14px;
    color: var(--mar-color-text-muted);
    margin-bottom: 8px;
}

/* CTA */
.mar_activity_cta {
    font-weight: 600;
    color: var(--mar-color-bg-active);
}

/* Animación “hazme clic” */
@keyframes marPulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.08);
        opacity: 0.85;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ==============================
  Footer
============================== */
.mar_resume {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    margin-bottom: 16px;
    border-radius: 8px;
    background: linear-gradient(90deg, var(--mar-color-bg-active), var(--mar-color-bg-nav-hover));
    color: var(--mar-color-text-light);
    font-size: 14px;
}

.mar_resume.hidden {
    display: none;
}

.mar_resume_btn {
    background: #fff;
    color: var(--mar-color-bg-active);
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.2s ease;
}

.mar_resume_btn:hover {
    transform: translateY(-1px);
}

.mar_buttomline {
    height: 1em;
    background-color: var(--mar-color-bg-active);
}
.mar_progress {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    opacity: 0.9;
}

.mar_progress_bar {
    width: 100%;
    height: 6px;
    background: var(--mar-color-bg-nav); /* gris del sistema */
    border-radius: 999px;
    overflow: hidden;
}

.mar_progress_fill {
    display: block;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--mar-color-bg-active), var(--mar-color-border));
    transition: width 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}
.mar_progress_info {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    position: relative;
    text-align: center;
}

.mar_info_icon {
    cursor: pointer;
    font-size: 1em;
    opacity: 0.75;
    padding: 0 1em;
}
.mar_info_icon img {
    height: 2em;
}

.mar_info_icon:hover {
    opacity: 1;
}

.mar_info_tooltip {
    position: absolute;
    bottom: 130%;
    right: 0;
    max-width: 10em;
    text-align: justify;
    background: #111;
    color: #fff;
    font-size: 12px;
    padding: 8px 10px;
    border-radius: 6px;
    line-height: 1.4;
    opacity: 0;
    pointer-events: none;
    transform: translateY(4px);
    transition:
        opacity 0.2s ease,
        transform 0.2s ease;
    z-index: 999;
}

.mar_progress_info:hover .mar_info_tooltip,
.mar_info_icon:focus + .mar_info_tooltip {
    opacity: 1;
    transform: translateY(0);
}

/* ==============================
   RESPONSIVE (MÓVIL)
============================== */

@media (max-width: 768px) {
    .mar_layout {
        flex-direction: column;
        grid-template-columns: 1fr;
        grid-template-rows: auto auto 1fr auto;
    }

    .mar_sidebar {
        width: 100%;
        grid-column: 1;
    }

    .mar_nav_mobile {
        display: flex;
    }

    .mar_nav {
        display: none;
    }

    .mar_content {
        padding: 16px;
        grid-column: 1;
    }
    .mar_videoWrapper,
    .mar_geniallyWrapper {
        width: 100%;
        margin: auto;
        max-width: 750px;
    }
}