* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
        }

        body {
            /* Fondo muy oscuro para contrastar el neón */
            background-color: #050505;
            background-image: radial-gradient(circle at 50% 50%, #1a1a1a 0%, #000000 100%);
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            width: 100%;
            overflow: hidden;
        }

        .login-container {
            background-color: rgba(20, 20, 20, 0.8);
            padding: 40px;
            border-radius: 20px;
            width: 100%;
            max-width: 420px;
            position: relative;
            /* Efecto de borde neón difuminado */
            border: 1px solid rgba(0, 240, 255, 0.3);
            box-shadow: 
                0 0 20px rgba(0, 240, 255, 0.2), /* Sombra exterior cyan */
                inset 0 0 20px rgba(0, 0, 0, 0.5); /* Sombra interior */
            backdrop-filter: blur(10px);
        }

        /* Línea superior neón brillante */
        .login-container::before {
            content: '';
            position: absolute;
            top: -2px;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, #00f0ff, #ff00ff);
            box-shadow: 0 0 15px #00f0ff;
        }

        .login-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .login-header h2 {
            color: #fff;
            font-weight: 600;
            font-size: 28px;
            text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
            margin-bottom: 10px;
        }

        .login-header p {
            color: #888;
            font-size: 14px;
        }

        /* GRUPO DE INPUTS */
        .input-group {
            position: relative;
            margin-bottom: 25px;
        }

        /* Estilo del Input */
        .input-group input {
            width: 100%;
            padding: 15px 50px 15px 50px; /* Espacio para iconos a ambos lados */
            background: rgba(0, 0, 0, 0.6);
            border: 2px solid #333;
            border-radius: 8px;
            font-size: 14px;
            color: #fff;
            transition: all 0.3s ease;
        }

        .input-group input::placeholder {
            color: #555;
        }

        /* Efecto Neón al seleccionar (Focus) */
        .input-group input:focus {
            outline: none;
            border-color: #00f0ff; /* Cyan */
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4), inset 0 0 5px rgba(0, 240, 255, 0.1);
        }

        /* ICONOS GENERALES (Candado, Sobre) - Posición Izquierda */
        .input-group .icon-left {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #555;
            font-size: 16px;
            transition: color 0.3s;
            pointer-events: none; /* Para que no impida hacer clic en el input */
        }

        /* Cambiar color del icono cuando el input está activo */
        .input-group input:focus + .icon-left {
            color: #00f0ff;
            text-shadow: 0 0 5px #00f0ff;
        }

        /* ICONO OJO - Posición Derecha */
        .toggle-password {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #555;
            cursor: pointer;
            font-size: 16px;
            transition: color 0.3s;
            z-index: 2; /* Asegura que esté encima */
        }

        .toggle-password:hover {
            color: #ff00ff; /* Magenta al pasar el mouse */
            text-shadow: 0 0 5px #ff00ff;
        }

        /* CAPS LOCK WARNING */
        .capslock-warning {
            display: none;
            align-items: center;
            color: #ff00ff; /* Advertencia en Magenta Neón */
            font-size: 12px;
            margin-top: -15px;
            margin-bottom: 20px;
            padding-left: 5px;
            text-shadow: 0 0 5px rgba(255, 0, 255, 0.5);
        }

        .capslock-warning i {
            margin-right: 6px;
        }

        /* OPCIONES */
        .options {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            font-size: 13px;
        }

        .options label {
            display: flex;
            align-items: center;
            color: #aaa;
            cursor: pointer;
        }

        .options input[type="checkbox"] {
            margin-right: 8px;
            accent-color: #00f0ff;
        }

        .options a {
            color: #ff00ff;
            text-decoration: none;
            font-weight: 500;
            text-shadow: 0 0 5px rgba(255, 0, 255, 0.3);
        }

        .options a:hover {
            text-decoration: underline;
        }

        /* BOTÓN LOGIN NEÓN */
        .login-btn {
            width: 100%;
            padding: 15px;
            border: none;
            border-radius: 8px;
            background: transparent;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            border: 2px solid #00f0ff;
            text-transform: uppercase;
            letter-spacing: 2px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
        }

        .login-btn:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.6), inset 0 0 10px rgba(0, 240, 255, 0.2);
            text-shadow: 0 0 5px #fff;
            transform: translateY(-2px);
        }

        .login-btn:active {
            transform: translateY(0);
        }

        /* DIVIDER */
        .divider {
            display: flex;
            align-items: center;
            margin: 30px 0;
            color: #444;
            font-size: 12px;
            text-transform: uppercase;
        }

        .divider::before, .divider::after {
            content: "";
            flex: 1;
            height: 1px;
            background: linear-gradient(90deg, transparent, #333, transparent);
        }

        .divider span {
            padding: 0 15px;
        }

        /* SOCIAL BUTTONS */
        .social-login {
            display: flex;
            justify-content: center;
            gap: 20px;
        }

        .social-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            border: 1px solid #333;
            background: transparent;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 18px;
            color: #888;
        }

        .social-btn:hover {
            border-color: #fff;
            color: #fff;
            box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
        }

        .footer-text {
            text-align: center;
            margin-top: 30px;
            font-size: 14px;
            color: #666;
        }

        .footer-text a {
            color: #00f0ff;
            font-weight: 600;
            text-decoration: none;
            text-shadow: 0 0 5px rgba(0, 240, 255, 0.3);
        }

        .footer-text a:hover {
            text-decoration: underline;
        }