body {
        font-family: 'Roboto', sans-serif;
        background-color: #0f0f0f;
        color: #d9d9d9;
        margin: 0;
    }
    .navbar {
        background-color: #1b1f23;
        border-bottom: 1px solid #3f3f3f;
    }
    .navbar .nav-link {
        color: #ffffff; 
        transition: color 0.3s ease-in-out;
    }
    .navbar .nav-link:hover {
        color: #b3b3b3; /* Cambiado a un gris claro para el hover */
    }
    .navbar-brand {
        font-family: 'Orbitron', sans-serif;
        font-weight: 600;
        color: #ffffff; 
    }
    .hero {
        background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
        color: #ffffff;
        padding: 120px 0;
        text-align: center;
        position: relative;
        animation: fadeIn 1.5s ease;
        overflow: hidden;
    }
    .hero::before {
        
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.3);
      
        animation: heroBackground 10s infinite linear;
    }
    .hero h1 {
        font-family: 'Orbitron', sans-serif;
        font-size: 52px;
        font-weight: 600;
        position: relative;
        z-index: 2;
        text-shadow: 0px 0px 10px #ffffff; 
        animation: flicker 1.5s infinite alternate;
    }
    .hero p {
        font-size: 22px;
        margin-top: 20px;
        position: relative;
        z-index: 2;
    }

    /* Features Section */
    .features {
        background-color: #1f2833;
        padding: 60px 0;
        text-align: center;
        animation: slideIn 1.5s ease;
    }
    .features h2 {
        font-size: 40px;
        font-family: 'Orbitron', sans-serif;
        margin-bottom: 40px;
        color: #ffffff;
        text-shadow: 0px 0px 6px #b3b3b3; 
    }
    .feature-item {
        margin-bottom: 30px;
        transition: transform 0.3s, box-shadow 0.3s;
    }
    .feature-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    }
    .feature-item i {
        font-size: 60px;
        color: #ffffff;
        transition: color 0.3s ease;
        animation: float 3s infinite ease-in-out;
    }
    .feature-item:hover i {
        color: #b3b3b3; 
    }
    .feature-item h4 {
        font-size: 28px;
        margin-top: 20px;
        color: #d9d9d9;
    }
    .chatbot{
        animation: slideIn 1.5s ease;
    }
    .chatbot p {
        font-size: 18px;
        margin-top: 20px;
        position: relative;
        z-index: 2;
    }
.chatbot h2{
    font-size: 40px;
        font-family: 'Orbitron', sans-serif;
        margin-bottom: 40px;
        color: #ffffff;
        text-shadow: 0px 0px 6px #b3b3b3; 
}
.chatbot-img {
    max-width: 80%;
    filter: drop-shadow(0px 0px 20px #00ffab);
    transition: transform 0.5s ease-in-out, filter 0.5s ease-in-out;
   
}

.chatbot-img:hover {
    transform: scale(1.1);
    filter: drop-shadow(0px 0px 40px #00ffab);
}

/* Futuristic animation */
.animated-future {
    animation: futuristic-appear 2s ease-out forwards;
}
  
    @keyframes futuristic-appear {
      0% {
          opacity: 0;
          transform: scale(0.8) translateY(20px);
          filter: blur(5px);
      }
      100% {
          opacity: 1;
          transform: scale(1) translateY(0);
          filter: blur(0);
           display: inline-block; /* Ensures it's treated as a block element */
      }
  }
  
  
    .pricing {
        background-color: #0b0c10;
        padding: 60px 0;
        text-align: center;
    }
    .pricing h2 {
        font-size: 40px;
        font-family: 'Orbitron', sans-serif;
        color: #ffffff; 
    }
    .pricing-card {
        background: rgba(51, 51, 51, 0.3);
        backdrop-filter: blur(10px);
        border: 1px solid #b3b3b3; 
        transition: all 0.4s ease-in-out;
        border-radius: 10px;
        margin-bottom: 30px;
    }
    .pricing-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
    }
    .pricing-card h3 {
        font-family: 'Orbitron', sans-serif;
        font-size: 26px;
        color: #ffffff; 
    }
    .pricing-card h2 {
        font-size: 42px;
        color: #ffffff; 
    }
    .pricing-card p {
        color: #d9d9d9;
    }
    .pricing-card .btn-dark {
        background-color: #b3b3b3; 
        border: none;
        transition: background 0.3s;
    }
    .pricing-card .btn-dark:hover {
        background-color: #1f2833;
    }
.modal-content{
      background-color: #0c0c0c;
     	color: #BBB;
}
.form-control{
    background-color: #1f2833;
   
    	color: #BBB;
}  
#usna_me::placeholder{
	color: #BBB;
  }
  #psw::placeholder{
	color: #BBB;
  }
    /* Contact Section */
    .contact {
        background-color: #1f2833;
        padding: 60px 0;
        text-align: center;
    }
    .contact h2 {
        font-size: 40px;
        font-family: 'Orbitron', sans-serif;
        margin-bottom: 40px;
        color: #ffffff; 
        text-shadow: 0px 0px 6px #b3b3b3; 
    }
    .contact form input,
    .contact form textarea {
        background-color: #0b0c10;
        border: 1px solid #b3b3b3; 
        color: #d9d9d9;
        margin-bottom: 20px;
    }
    .contact form input::placeholder,
    .contact form textarea::placeholder {
        color: #d9d9d9;
    }

    /* Animations */
    @keyframes flicker {
        0% {
            opacity: 0.8;
            text-shadow: 0px 0px 10px #ffffff, 0 0 30px #ffffff; 
        }
        100% {
            opacity: 1;
            text-shadow: 0px 0px 20px #ffffff, 0 0 60px #ffffff;
        }
    }

    @keyframes float {
        0% {
            transform: translateY(0);
        }
        50% {
            transform: translateY(-10px);
        }
        100% {
            transform: translateY(0);
        }
    }

    @keyframes heroBackground {
        0% {
            background-position: 0% 50%;
        }
        100% {
            background-position: 100% 50%;
        }
    }

    .footer {
        background-color: #1f2833;
        color: #ffffff; 
        padding: 30px 0;
        text-align: center;
        border-top: 1px solid #3f3f3f;
    }
    .footer a {
        color: #ffffff; 
        margin: 0 15px;
        transition: color 0.3s;
    }
    .footer a:hover {
        color: #b3b3b3; 
    }
@media (max-width: 1200px) {
    .pricing-card h2 {
        font-size: 36px;
    }
    .pricing-card h3 {
        font-size: 22px;
    }
}

@media (max-width: 992px) {
    .hero h1 {
        font-size: 40px;
    }
    .hero p {
        font-size: 20px;
    }
    .features h2, .pricing h2, .chatbot h2, .contact h2 {
        font-size: 25px;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 32px;
    }
    .hero p {
        font-size: 18px;
    }
    .features h2, .pricing h2, .chatbot h2, .contact h2 {
        font-size: 28px;
    }
    .pricing-card h2 {
        font-size: 30px;
    }
    .pricing-card h3 {
        font-size: 20px;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 28px;
    }
    .hero p, .chatbot p {
        font-size: 16px;
    }
    .features h2, .pricing h2,.chatbot h2,  .contact h2 {
        font-size: 24px;
    }
    .pricing-card h2 {
        font-size: 24px;
    }
    .pricing-card h3 {
        font-size: 18px;
    }
    .feature-item i {
        font-size: 50px;
    }
} 

.navbar-nav {
    margin-right: auto; 
}

.login-button {
    margin-left: 20px; 
}

.hidden {
    opacity: 0;
    transform: translateY(20px);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-left {
    animation: fadeInLeft 1s ease-out forwards;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-right {
    animation: fadeInRight 1s ease-out forwards;
}
.fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
}
@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.zoom-in {
    animation: zoomIn 1s ease-out forwards;
}