/* =========================================================================
   1. VARIABLES DE DISEÑO (PALETA ULTRA-MINIMALISTA BLANCO & VERDE)
   ========================================================================= */
:root {
    /* Base Lumínica */
    --bg-principal: #ffffff;       /* Fondo blanco absoluto */
    --bg-card: #f8fafc;            /* Gris sutil para el panel de configuración */
    --text-primario: #0f172a;       /* Gris Oxford oscuro para textos principales */
    --text-secundario: #64748b;     /* Gris neutro para etiquetas y metadatos */
    --border: #e2e8f0;             /* Líneas divisorias finas */
    
    /* Acentos de Interacción */
    --accent: #059669;             /* Verde esmeralda minimalista */
    --accent-hover: #047857;       /* Verde más oscuro para estados hover */
    --success: #10b981;            /* Estatus verificado */
    --warning: #f59e0b;            /* Alerta preventivo (Pendiente) */
}

/* =========================================================================
   2. REGLAS ESTRUCTURALES Y RESET
   ========================================================================= */
body {
    background-color: var(--bg-principal);
    color: var(--text-primario);
    font-family: 'Plus Jakarta Sans', sans-serif;
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

header {
    background-color: var(--bg-principal);
    border-bottom: 1px solid var(--border);
    padding: 0.25rem 2rem; 
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
}

/* =========================================================================
   CONTROL DE DIMENSIONES DEL LOGOTIPO
   ========================================================================= */
.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 500px;        
    width: auto;         
    max-height: 150px;   
    display: block;
    margin-top: -5px;    
    margin-bottom: -5px; 
    transition: transform 0.2s ease;
}

/* DISEÑO DE DOS COLUMNAS (LAYOUT RETENIDO) */
.container {
    display: flex;
    flex: 1;
    height: calc(100vh - 60px);
    overflow: hidden;
}

/* Panel Izquierdo: Control */
.panel-config {
    width: 340px;
    min-width: 340px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border);
    padding: 2rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    overflow-y: auto;
}

/* Panel Derecho: Visor de Documentos */
.panel-visor {
    flex: 1;
    background-color: var(--bg-principal);
    padding: 2rem;
    box-sizing: border-box;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* =========================================================================
   3. COMPONENTES DE FORMULARIO (INPUTS Y SELECTORES)
   ========================================================================= */
.panel-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primario);
    margin-bottom: 0.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secundario);
}

select, input[type="text"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    background-color: #ffffff;
    color: var(--text-primario);
    border-radius: 6px;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

select:focus, input[type="text"]:focus {
    outline: none;
    border-color: var(--accent);
}

/* Botones con Identidad Corporativa Verde */
.btn {
    background-color: var(--accent);
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.2s;
}

.btn:hover:not(:disabled) {
    background-color: var(--accent-hover);
}

.btn:disabled {
    background-color: #e2e8f0;
    color: #94a3b8;
    cursor: not-allowed;
}

/* Barra de Acciones Superior del Visor */
.visor-acciones {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
    width: 100%;
}

/* =========================================================================
   4. LIENZO EDITORIAL DE LA FICHA DIDÁCTICA
   ========================================================================= */
.ficha-documento {
    background-color: #ffffff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 3rem;
    padding-bottom: 7rem; 
    box-shadow: none;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.ficha-header {
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.5rem;
}

.ficha-meta-tags {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.ficha-meta-tags span {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secundario);
    letter-spacing: 0.05em;
}

.ficha-titulo {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-primario);
}

.ficha-seccion {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.seccion-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secundario);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pregunta-gancho {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent);
    font-style: italic;
    border-left: 3px solid var(--accent);
    padding-left: 1rem;
}

/* Etiquetas de Conceptos Clave */
.grid-conceptos {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.concepto-tag {
    background-color: #ecfdf5;
    color: var(--accent);
    border: 1px solid #a7f3d0;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Estructura Interna del Reto Creativo */
.box-reto {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.reto-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.restriccion-alerta {
    grid-column: span 2;
    background-color: #fef2f2;
    color: #991b1b;
    border-left: 4px solid #ef4444;
    padding: 1rem;
    margin-top: 0.5rem;
    border-radius: 0 4px 4px 0;
    font-size: 0.9rem;
}

/* Tablas de Co-evaluación / Metacognición */
.tabla-metacognicion {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.5rem;
}

.tabla-metacognicion th, .tabla-metacognicion td {
    border: 1px solid var(--border);
    padding: 1rem;
    text-align: left;
    font-size: 0.95rem;
}

.tabla-metacognicion th {
    background-color: var(--bg-card);
    color: var(--text-secundario);
    font-weight: 600;
}

/* =========================================================================
   5. COMPONENTES DE INTERFAZ DINÁMICOS (STATUS & ECOVÍAS)
   ========================================================================= */
.badge-status {
    font-size: 1rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    margin: 0;
    padding: 0;
}

.status-pendiente { 
    color: var(--warning); 
    background-color: #fffbeb; 
}

.status-verificado { 
    color: var(--success); 
    background-color: #ecfdf5; 
}

.loading-overlay {
    display: none;
    text-align: center;
    padding: 3rem;
    color: var(--text-secundario);
}

/* BOTÓN FLOTANTE DE UNMATHLAB (SISTEMA BASE COMPARTIDO) */
#btnFloatMath {
    display: none; /* Inicia apagado, JavaScript decide cuándo encenderlo */
    position: fixed;
    background-color: var(--text-primario) !important;
    color: #ffffff !important;
    border: none;
    font-weight: 600;
    cursor: pointer;
    font-family: 'Plus Jakarta Sans', sans-serif;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s, transform 0.2s;
}

/* Configuración de Escritorio para el botón */
@media screen and (min-width: 769px) {
    #btnFloatMath {
        bottom: 20px;
        left: 20px;
        border-radius: 50px;
        padding: 1rem 1.5rem;
        z-index: 9997; 
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }
    #btnFloatMath:hover {
        background-color: var(--accent) !important;
        transform: translateY(-2px);
    }
}

/* =========================================================================
   THEUN.SCHOOL - SISTEMA DE INTRODUCCIÓN, VIDEO CENTRADO EN EXPANSIÓN Y LOGIN
   ========================================================================= */
.intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #d4d2d3;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.8s ease-in-out, visibility 0.8s;
    overflow: hidden;
}

.contenedor-video-logo {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center; 
}

#video-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw !important;
    height: 100vh !important;
    object-fit: cover;
    transform: translate(-50%, -50%); 
}

.auth-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at center, #f8fafc 0%, #f1f5f9 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9998;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.5s ease, visibility 0.5s;
}

.tarjeta-login {
    background: #ffffff;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    width: 100%;
    max-width: 420px;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.login-encabezado h2 {
    font-size: 2rem;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.login-encabezado p {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 2rem;
}

.btn-google {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background-color: #ffffff;
    color: #334155;
    border: 1px solid #cbd5e1;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, box-shadow 0.2s;
}

.btn-google:hover {
    background-color: #f8fafc;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.btn-google img {
    width: 20px;
    height: 20px;
}

.login-pie p {
    margin-top: 2rem;
    font-size: 0.8rem;
    color: #94a3b8;
    line-height: 1.4;
}

.style-hidden {
    opacity: 0 !important;
    visibility: hidden !important;
}

.login-divisor {
    margin: 1.5rem 0;
    position: relative;
    text-align: center;
}

.login-divisor::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: #e2e8f0;
    z-index: 1;
}

.login-divisor span {
    background-color: #ffffff;
    padding: 0 10px;
    color: #94a3b8;
    font-size: 0.85rem;
    position: relative;
    z-index: 2;
}

.form-group-login {
    margin-bottom: 0.75rem;
}

.form-group-login input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    box-sizing: border-box;
}

.btn-correo-submit {
    width: 100%;
    background-color: #0f172a;
    color: #ffffff;
    padding: 0.85rem;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: 'Plus Jakarta Sans', sans-serif;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    box-sizing: border-box;
    margin-top: 0.25rem;
}

.btn-correo-submit:hover {
    background-color: #1e293b;
}

.auth-opciones-secundarias {
    margin-top: 0.5rem;
    text-align: center;
}

.enlace-registro {
    color: #059669;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: 'Plus Jakarta Sans', sans-serif;
    transition: color 0.2s ease;
}

.enlace-registro:hover {
    color: #047857;
    text-decoration: underline;
}

/* FORZAR RENDERIZADO DEL LIENZO GEOMÉTRICO (Estructura base global) */
#lienzo-svg svg {
    display: block;
    width: 100%;
    height: auto;
    min-height: 200px;
    margin: 0 auto;
}

/* =========================================================================
   CÁMARA DE CONTROL PARA PANTALLAS MÓVILES (CELULARES)
   ========================================================================= */
@media screen and (max-width: 768px) {
    /* 1. COMPORTAMIENTO MÓVIL DEL BOTÓN */
    #btnFloatMath {
        position: fixed !important;
        width: 100% !important;
        left: 0 !important;
        bottom: 0 !important;
        border-radius: 0 !important;
        z-index: 9999 !important;
        padding: 14px !important;
        font-size: 0.95rem !important;
        box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.15) !important;
        margin: 0 !important;
        justify-content: center;
    }

    /* 2. LIENZO GEOMÉTRICO EN MÓVILES */
    #lienzo-svg svg {
        display: block !important;
        width: 100% !important;
        height: auto !important;
        min-height: 200px !important;
        margin: 0 auto !important;
    }
}
/* =========================================================================
   CÁMARA DE CONTROL PARA PANTALLAS MÓVILES (CELULARES)
   ========================================================================= */
@media screen and (max-width: 768px) {
    
    /* FORZAR LAYOUT VERTICAL EN MÓVILES (ELIMINA LAS DOS COLUMNAS) */
    body {
        overflow-y: auto !important; /* Permite el scroll general en el teléfono */
        height: auto !important;
    }

    .container {
        flex-direction: column !important; /* Apila las columnas verticalmente */
        height: auto !important;
        overflow: visible !important;
    }

    .panel-config {
        width: 100% !important; /* El panel de control toma todo el ancho del celular */
        min-width: 100% !important;
        border-right: none !important;
        border-bottom: 1px solid var(--border); /* Divisor horizontal */
        padding: 1.5rem !important;
        overflow-y: visible !important;
    }

    .panel-visor {
        width: 100% !important;
        padding: 1.5rem !important;
        overflow-y: visible !important;
    }

    .ficha-documento {
        padding: 1.5rem !important; /* Reduce márgenes internos de la ficha en el teléfono */
        padding-bottom: 7rem !important; /* Espacio de cortesía para el botón inferior */
    }

    /* 1. COMPORTAMIENTO MÓVIL DEL BOTÓN (Se queda apagado al inicio) */
    #btnFloatMath {
        position: fixed !important;
        width: 100% !important;
        left: 0 !important;
        bottom: 0 !important;
        border-radius: 0 !important;
        z-index: 9999 !important;
        padding: 14px !important;
        font-size: 0.95rem !important;
        box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.15) !important;
        margin: 0 !important;
        justify-content: center;
    }

    /* 2. LIENZO GEOMÉTRICO EN MÓVILES */
    #lienzo-svg svg {
        display: block !important;
        width: 100% !important;
        height: auto !important;
        min-height: 200px !important;
        margin: 0 auto !important;
    }
}