/* ==========================================================================
   VARIABLES GLOBALES Y CONFIGURACIÓN
   ========================================================================== */
:root {
    --ancho-sidebar-expandido: 22vw; 
    --ancho-sidebar-colapsado: 7vw;

    --espacio-azul: clamp(34px, 3.64vw, 40px);
    --espacio-rosa: clamp(20px, 2.6vw, 36px);
    --espacio-amarillo: clamp(20px, 1.82vw, 35px);
    --espacio-verde: clamp(16px, 1.3vw, 25px);

    --color-fondo: #383838; 
    --color-sidebar: #383838; 
    --color-blanco: #ffffff;
    --color-acento: #ffcc00; 
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Work Sans', sans-serif;
    background-color: var(--color-fondo);
    display: flex;
    height: 100vh;
    overflow: hidden; 
    min-width: 1100px; 
}

/* ==========================================================================
   MENÚ LATERAL (SIDEBAR)
   ========================================================================== */
.sidebar {
    width: var(--ancho-sidebar-expandido); 
    background-color: var(--color-sidebar);
    height: 100vh;
    transition: width 0.4s ease; 
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    
    /* Alineación rígida a la izquierda */
    align-items: flex-start; 

    /* Padding intacto: Superior/Inferior Azul, Laterales Rosa */
    padding: var(--espacio-azul) var(--espacio-rosa);
}

.sidebar.collapsed {
    width: var(--ancho-sidebar-colapsado);
}

/* Contenedor de los botones */
.toggle-btn {
    display: flex; 
    align-items: center;
    /* Eliminamos la caja de 55px y el centrado, ahora solo envuelve al elemento */
    text-decoration: none;
    cursor: pointer;
    color: var(--color-acento);
    transition: color 0.4s ease; /* Solo animamos el color por si acaso, nada de tamaños */
}

/* ==========================================================================
   TAMAÑOS ESTRICTOS: LOGO E ÍCONO A 1.3REM
   ========================================================================== */
.logo-img {
    width: 1.8rem; 
    height: 1.8rem; /* Para asegurar la proporción cuadrada respecto a la fuente */
    object-fit: contain; /* Evita que la imagen se deforme si no es un cuadrado perfecto */
    display: block;
    /* Cero animaciones de tamaño */
}

.btn-bottom i {
    font-size: 1.3rem; 
    /* Cero animaciones de tamaño */
}

/* ==========================================================================
   CONTENEDOR PRINCIPAL
   ========================================================================== */
.main-content {
    flex: 1; 
    height: 100vh;
    display: flex;
    transition: padding 0.4s ease;
    padding: var(--espacio-amarillo) var(--espacio-amarillo) var(--espacio-amarillo) 0;
}

.content-box {
    background-color: var(--color-blanco);
    width: 100%;
    height: 100%;
    border-radius: 20px;
    overflow-y: auto; 
    padding: var(--espacio-verde);
}

/* ==========================================================================
   ESTILOS LECCIÓN 1: SHORTS, MODAL Y PLAYGROUND
   ========================================================================== */

/* --- SIDEBAR TEXTOS Y ESTRUCTURA --- */
.sidebar-content {
    flex: 1;
    margin-top: 20px;
    width: 100%;
    overflow-y: auto;
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Ocultar textos si el menú se colapsa */
.sidebar.collapsed .sidebar-content {
    opacity: 0;
    pointer-events: none;
}

.sidebar-title {
    color: var(--color-acento);
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.sidebar-subtitle {
    color: var(--color-blanco);
    font-size: 0.9rem;
    margin-bottom: 15px;
    opacity: 0.8;
}

.sidebar-list {
color: var(--color-fondo);
  font-size: 1.6rem;
  margin-left: 20px;
  line-height: 1.6;
  font-weight: 700;
}

/* --- ÁREA PRINCIPAL --- */
.etapa-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.main-title {
    color: var(--color-fondo);
    font-size: 2rem;
    margin-bottom: 20px;
}

/* --- EL INPUT --- */
.input-wrapper {
display: flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid #ccc;
  border-radius: 8px;
  padding: 10px;
  width: 100%;
  max-width: 700px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.svg-shorts-icon {
    width: 24px;
    height: 24px;
    margin: 0 15px;
    /* TÉCNICA MASK: Pinta el SVG del color que le digamos */
    background-color: #999999; /* GRIS POR DEFECTO */
    -webkit-mask-image: url('shorts.svg');
    mask-image: url('shorts.svg');
    -webkit-mask-size: contain;
    mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
    transition: background-color 0.3s ease;
}

/* JS le agregará esta clase cuando la URL sea correcta */
.svg-shorts-icon.valid {
    background-color: #ff0033; /* ROJO YOUTUBE */
}

.input-wrapper input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
    font-family: inherit;
    color: #333;
}

.btn-primary {
    background-color: #0056b3; /* Azul fuerte */
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-primary:hover {
    background-color: #004494;
}

/* --- POPUP MODAL --- */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px); /* Efecto cristal oscuro atrás */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.modal-content {
    background: #ffffff;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.modal-content h2 { color: #333; margin-bottom: 10px; }
.modal-content p { color: #555; margin-bottom: 20px; font-size: 0.95rem; line-height: 1.5; }
.btn-modal { width: 100%; margin-top: 15px; }

/* --- BLOQUES DE CÓDIGO (Estilo ChatGPT / Resaltado) --- */
.code-block {
    background-color: #1e1e1e;
    color: #d4d4d4;
    padding: 15px;
    border-radius: 8px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.7rem;
    text-align: left;
    overflow-x: auto;
    border: 1px solid #333;
    white-space: pre-wrap; /* Para que baje de línea si es largo */
}

.code-block .tag { color: #569cd6; } /* Azul para etiquetas HTML */
.code-block .attr { color: #9cdcfe; } /* Celeste para atributos */
.code-block .val { color: #ce9178; } /* Naranja para valores */
.code-block .css-prop { color: #9cdcfe; } 
.code-block .css-val { color: #ce9178; }

/* --- PLAYGROUND (Controles) --- */
.control-group { margin-bottom: 20px; }
.control-label { color: var(--color-acento); font-size: 0.85rem; margin-bottom: 8px; font-weight: 600;}

.btn-row { display: flex; gap: 5px; }
.grid-3x3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; max-width: 150px;}

.control-btn {
    background: #555;
    color: white;
    border: 1px solid #666;
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    flex: 1;
    transition: all 0.2s;
}

.control-btn:hover { background: #666; }
.control-btn.active-btn { background: var(--color-acento); color: #333; font-weight: bold; border-color: var(--color-acento); }

.video-wrapper {
    width: 100%; height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    transition: all 0.4s ease;
}

.video-wrapper iframe {
    transition: border-radius 0.4s ease, transform 0.4s ease;
}

.live-code-box { margin-top: 20px; }
.live-code-text { color: #fff; font-size: 0.8rem; margin-bottom: 5px; }