/* Contenedor General */
#eco-app-container {
    width: 100%;
    height: 700px; /* Altura pantalla completa aprox */
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: #fff;
    border: 1px solid #ddd;
    position: relative;
    overflow: hidden;
}

/* --- FONDO CUADRICULADO (COMPARTIDO) --- */
#eco-welcome-screen, .eco-canvas-area {
    width: 100%;
    height: 100%;
    background-color: #fcfcfc;
    background-image:
        linear-gradient(#e5e5e5 1px, transparent 1px),
        linear-gradient(90deg, #e5e5e5 1px, transparent 1px);
    background-size: 40px 40px; /* Cuadros grandes tipo plano */
    position: relative;
}

/* --- PANTALLA 1: BIENVENIDA --- */
#eco-welcome-screen {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Texto Central Gigante */
.eco-hero-text {
    text-align: center;
    z-index: 1;
    margin-left: 50px; /* Para separarlo de la caja izquierda */
}
.eco-hero-text small {
    display: block;
    font-size: 14px;
    letter-spacing: 2px;
    color: #666;
    margin-bottom: 10px;
}
.eco-hero-text h2 {
    font-size: 42px;
    line-height: 1.2;
    color: #333;
    font-weight: 300; /* Fino */
}
.eco-hero-text h2 strong {
    font-weight: 900; /* Grueso */
    color: #111;
}

/* Caja Flotante Izquierda */
.eco-location-box {
    position: absolute;
    left: 50px;
    top: 50%;
    transform: translateY(-50%);
    width: 300px;
    background: white;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    border-radius: 4px;
    z-index: 10;
}

.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 12px;
    color: #666;
    margin-bottom: 5px;
    font-weight: bold;
}

.eco-select, .eco-input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    background: #fff;
}

.eco-start-btn {
    width: 100%;
    background: #d32f2f; /* Rojo TecnoFast */
    color: white;
    border: none;
    padding: 15px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}
.eco-start-btn:hover { background: #b71c1c; }

/* --- PANTALLA 2: CONSTRUCTOR (Oculto al inicio) --- */
#eco-builder-interface {
    display: flex;
    width: 100%;
    height: 100%;
}

.eco-sidebar { width: 340px; background: white; border-right: 1px solid #ddd; display: flex; flex-direction: column; z-index: 5; }
.eco-sidebar-header { padding: 20px; background: #222; color: white; }
.eco-sidebar-content { flex: 1; padding: 20px; overflow-y: auto; }
.eco-sidebar-footer { padding: 20px; background: #f9f9f9; border-top: 1px solid #eee; }

.eco-module-btn { width: 100%; padding: 15px; margin-bottom: 10px; background: white; border: 1px solid #ddd; text-align: left; cursor: pointer; display: flex; align-items: center; }
.eco-module-btn:hover { border-color: #d32f2f; }
.eco-module-btn .icon { font-size: 24px; margin-right: 15px; }

/* Lienzo */
.eco-canvas-area { flex: 1; display: flex; align-items: center; justify-content: center; overflow: auto; }
.eco-canvas-placeholder { text-align: center; color: #999; }
.eco-built-house { display: flex; gap: 5px; padding: 20px; border: 2px dashed #ccc; background: rgba(255,255,255,0.8); }

/* Bloques */
.eco-module-visual { width: 100px; height: 100px; background: #333; color: white; display: flex; flex-direction: column; justify-content: center; align-items: center; font-size: 11px; position: relative; margin: 2px; }
.eco-close-block { position: absolute; top: 0; right: 0; background: red; width: 20px; height: 20px; cursor: pointer; text-align: center; }

/* Responsive móvil: Ajustar caja */
@media (max-width: 768px) {
    #eco-welcome-screen { flex-direction: column; }
    .eco-location-box { position: relative; left: auto; top: auto; transform: none; width: 90%; margin-bottom: 30px; }
    .eco-hero-text { margin-left: 0; }
}